Conveying device for capacitor welding

Abstract

The utility model discloses a conveying device for capacitor welding, which is used for conveying a containing device containing a capacitor bank to the surface of a first rotating platform, and comprises a working platform and a transfer device arranged at the upper end of the working platform, and the transfer device comprises a second rotating platform capable of rotating around the axis. A locking tail end and a third telescopic rod controlling the locking tail end to stretch out and draw back are installed at the upper end of the second rotating platform, a locking device matched with the locking tail end is fixed to the side wall of the containing device, the locking tail end comprises a locking ring, and the outer diameter of the locking device is smaller than the inner diameter of the locking ring. An annular locking bag is fixed to the inner wall of the locking ring and communicated with a pumping system, and the pumping system controls the annular locking bag to be in a locking state or a separation state. The capacitor automatic welding device improves the efficiency of capacitor automatic welding, and ensures the consistency and stability of the quality of finished capacitors.

Description

Technical Field

[0001] The utility model relates to the technical field of capacitor production, in particular to a conveying device for capacitor welding. Background Art

[0002] The deflection angle of the capacitor bank can be adjusted by cooperating with the first rotating platform and the traction device. With the cooperation of the welding head, continuous welding can be performed at different positions on the surface of the capacitor bank through the welding line.

[0003] The first rotating platform is located at a relatively deep position below the welding head. In the traditional welding process, it is necessary to manually place the storage device containing the capacitor group in the predetermined position. This welding method requires the storage device to be locked with the first rotating platform; the traditional manual loading and unloading and locking methods are time-consuming and have low efficiency during manual continuous operation. It is also easy to cause instability in the locking position and locking state of the storage device, affecting the quality and stability of subsequent welding of the capacitor. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a conveying device for capacitor welding, which improves the efficiency of automatic welding of capacitors and ensures the consistency and stability of the quality of finished capacitors.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A conveying device for capacitor welding, used for conveying a accommodating device containing a capacitor group to the surface of a first rotating platform, comprising a working platform and a transfer device installed on the upper end of the working platform, the transfer device comprising a second rotating platform that can rotate around an axis, a locking end and a third telescopic rod for controlling the extension and retraction of the locking end installed on the upper end of the second rotating platform, a locking device that cooperates with the locking end is fixed to the side wall of the accommodating device, the locking end comprises a locking ring, the outer diameter of the locking device is smaller than the inner diameter of the locking ring, an annular locking capsule is fixed to the inner wall of the locking ring, the annular locking capsule is connected to a pumping system, and the annular locking capsule is controlled by the pumping system to be in a locked state or a disengaged state. During the welding process, the locking end is controlled to be in a disengaged state with the accommodating device, and during the conveying process, the locking end is controlled to be in a locked state with the accommodating device.

[0007] Preferably, the annular locking bag is annular and has contraction elasticity.

[0008] Preferably, the locking device includes a locking protrusion, a pumping air channel for gas to pass through is formed inside the locking protrusion, a one-way valve for one-way entry of gas is installed in the pumping air channel, and also includes a pumping air device, a connector connected to the pumping air device is installed on the inner side of the locking end, and the accommodating device includes a accommodating box body, and a plurality of locking air bags connected to the pumping air channel are arranged inside the accommodating box body.

[0009] Preferably, the one-way valve comprises an elastic one-way sealing valve body, a deflation ejector pin is installed inside the locking end, and when the locking end is coaxially opposite to the locking device, the one-way sealing valve body is located on the moving path of the deflation ejector pin.

[0010] Preferably, the cross-section of the outer wall of the locking device is a stepped surface, and the outer diameter of the outer side of the locking device is larger than the outer diameter of the inner side of the locking device.

[0011] Preferably, four third telescopic rods are provided on the upper end of the second rotating platform, the telescopic end of each of the third telescopic rods is provided with a locking end, and the four third telescopic rods are divided into two groups and symmetrically arranged.

[0012] Compared with the existing technology, the utility model can replace manual labor to realize automatic grasping and automatic loading of the containing device. The grasping process and the loading process are fast and stable, the capacitor welding is greatly improved, the state is stable during the welding process, and the quality of the finished capacitor is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0014] Figure 2 For this utility model Figure 1 Schematic diagram of the main structure.

[0015] Figure 3 For this utility model Figure 1 Schematic diagram of the top view structure.

[0016] Figure 4 For this utility model Figure 1 Schematic diagram of the side structure.

[0017] Figure 5 For this utility model Figure 2 A is an enlarged structural diagram of FIG.

[0018] Figure 6 This is a schematic diagram of the first welding state of the welding line of the present invention.

[0019] Figure 7 This is a schematic diagram of the second welding state of the welding line of the present invention.

[0020] In the figure: 100, working platform; 200, loading and unloading platform; 300, transfer device; 310, second rotating platform; 320, third telescopic rod; 330, locking end; 331, locking ring; 332, annular locking bag; 333, deflation ejector; 400, first rotating platform; 500, traction device; 510, guide assembly; 511, first telescopic rod; 512, guide ring; 520, traction assembly; 521, second telescopic rod; 522, traction end; 523, cutting end; 600, welding line; 700, capacitor bank; 800, welding head; 900, accommodating device; 910, accommodating box; 920, magnetic control valve; 930, locking device; 931, locking protrusion; 932, elastic element; 933, one-way sealing valve body 1; 934, one-way sealing valve body 2; 940, locking airbag. DETAILED DESCRIPTION

[0021] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without violating the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0022] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0023] For small-scale capacitor welding workshops, the back of electrolytic capacitors is usually welded and fixed manually. During the welding process, multiple capacitors need to be placed in a predetermined mold for positioning, and welding wire is welded and fixed to the back of the capacitor using welding equipment to form a capacitor bank.

[0024] The backs of multiple capacitors need to be welded multiple times. During the welding process, the worker manually controls the position between the capacitor group and the welding head, and realizes continuous welding of multiple capacitors in the process of the welding head descending and contacting. Some workshops can simulate the operator's arm movements through robots or other mechanical equipment to automatically and continuously weld the capacitor group. However, the cost of robots is relatively high, which increases the overall production cost of the capacitor group. In addition, the installation environment and use environment of some robots have special requirements. Most traditional welding equipment is difficult to install suitable robots, resulting in low welding efficiency of some robots or even the inability to complete automatic welding normally.

[0025] In order to solve the above problems, refer to the attached Figure 1 -Attached Figure 7 A capacitor automatic welding device includes a conveying device and a transfer device 300 installed on the upper end of a work platform 100 for conveying a capacitor group 700, and also includes a welding auxiliary device and a traction device 500 for automatically welding the capacitor group 700. During the welding process of the capacitor group 700, the capacitor group 700 is first conveyed to one side of the traction device 500 by the transfer device 300. A first rotating platform 400 that can be directional and rotated is also installed on one side of the traction device 500. The capacitor group 700 is placed on the surface of the first rotating platform 400 for locking and limiting. Then, with the cooperation of the first rotating platform 400 and the traction device 500, the capacitor group 700 is welded and fixed.

[0026] The surface of the capacitor group 700 is fixed by welding the welding wire 600 to a predetermined position on the surface of each capacitor on the surface of the capacitor group 700. The welding equipment here also includes a welding head 800. By moving the welding head 800 toward the capacitor group 700, the welding wire 600 can be welded and fixed to the capacitors on the surface of the capacitor group 700, and finally the entire capacitor group 700 is formed.

[0027] First of all, the welding method of the capacitor group 700 here is different from the method of simulating manual welding by traditional robots. During the welding process, the capacitor group 700 is driven to rotate around the axis by the first rotating platform 400. During the rotation process, the capacitor group 700 on the surface of the first rotating platform 400 and the welding head 800 can be controlled to be in different positions; the rotation of the capacitor group 700 is controlled by the first rotating platform 400, and the welding wire 600 can be welded to various positions on the surface of the capacitor group 700 to form a ring-shaped welding structure while the conveying direction of the welding wire 600 remains relatively unchanged, thereby completing the welding and fixation of multiple capacitors.

[0028] The traction device 500 here includes a guide component 510 and a traction component 520. The guide component 510 can guide the welding wire 600 to ensure its stability during the traction process. The traction component 520 can pull and cut the welding wire 600. The traction component 520 can pull the welding wire 600 to a predetermined position above the first rotating platform 400, opposite to the corresponding capacitor, and control the welding head 800 to move to a position directly above the capacitor. During the descent of the welding head 800, the welding wire 600 is welded and fixed to the surface of the capacitor to complete the welding of the first point.

[0029] Please refer to the attached Figure 6 , control the welding head 800 to move to the right, complete the welding and fixing of the surface of the lower row of capacitors; when the second row above needs to be welded and fixed, first control the first rotating platform 400 to rotate 90° clockwise, that is, rotate to the adjacent Figure 7 The welding head 800 is controlled to move to the predetermined position to complete the welding and fixing of the capacitor at the corner position; then, it is rotated 90° clockwise and the above action is repeated to complete the welding and fixing of the remaining capacitors, and finally the attached capacitor is formed. Figure 3 The right side shows the entire capacitor bank 700 being welded and fixed.

[0030] Through the above-mentioned design, the capacitor group 700 is controlled to rotate to different positions by the first rotating platform 400. There is no need to adjust the output orientation of the welding line 600. It only needs to control its up and down movement position to adapt to the welding point of the capacitor group 700 to complete continuous welding. The improvement of the existing welding equipment is small and the cost is low. At the same time, the welding effect is stable and good. The continuous welding of multiple points can be completed in a short time, which improves the efficiency of automated welding.

[0031] Specifically, the guide assembly 510 here includes a first telescopic rod 511 and a guide ring 512. The guide ring 512 can allow the welding wire 600 to pass through stably. The linear movement of the guide ring 512 can be controlled by the first telescopic rod 511, and the welding wire 600 can be guided at different positions to ensure that the position of the welding wire 600 during the welding process can be adapted to the rotation position of the capacitor group 700, thereby avoiding local damage caused by excessive overall bending angle of the welding wire 600.

[0032] The traction assembly 520 here includes a traction end 522 for traction of the welding line 600, a cutting end 523 for cutting the welding line 600, and a second telescopic rod 521 for controlling the linear movement of the traction end 522 and the cutting end 523. The second telescopic rod 521 can control the traction end 522 and the cutting end 523 to move synchronously with the welding line 600, and can correspond to the inner guide assembly 510 to jointly complete the guidance of the welding line 600.

[0033] Furthermore, the second telescopic rod 521 and the first telescopic rod 511 can be telescopically moved synchronously, and their telescopic positions are determined comprehensively according to the angle position of the capacitor bank 700 controlled by the first rotating platform 400 and the size of the capacitors.

[0034] The rear end of the second telescopic rod 521 also includes an electric slide rail for controlling the linear movement of the second telescopic rod 521. During the welding process, the end of the welding line 600 is first clamped and limited by the traction end 522. Then, the electric slide rail is used to control the linear movement of the second telescopic rod 521 to pull the welding line 600 to a predetermined position. Then, the welding of the first point of the welding line 600 is completed by the welding head 800.

[0035] It should be noted that the traction end 522 here has a dual function of clamping and pushing. A roller-type clamping assembly can be selected to complete the clamping and pushing of the welding line 600; it can push the end of the welding line 600 forward by a predetermined length, and control the position of the end of the welding line 600 to exceed the cutting end 523, so as to avoid the cutting end 523 being welded to the outside during the welding process, affecting the overall movement of the traction assembly 520.

[0036] Multiple capacitor points are welded and fixed using the method described above. After the welding of the capacitor group 700 is completed, the traction component 520 is controlled to move to the position of the last welding point, and finally the welding wire 600 is shortened by the cutting end 523 to complete the welding and fixing of one capacitor group 700. Then, the above action process is repeated to complete the continuous welding and fixing of multiple capacitor groups 700.

[0037] The welding head 800 here can select a multi-joint manipulator for position control, or a three-directional control structure can be selected to coordinate and accurately control the position of the welding head 800.

[0038] Here, multiple capacitors are placed in the accommodating device 900 to form a capacitor group 700. The accommodating device 900 can be used to stably limit the capacitor group 700.

[0039] The transfer device 300 comprises a second rotating platform 310 which can rotate in a direction, and a third telescopic rod 320 is arranged on the upper end of the second rotating platform 310, and a locking end 330 is arranged on the telescopic end of the third telescopic rod 320. The containing device 900 comprises a containing box 910, and a locking device 930 which is matched with the locking end 330 is arranged on the outer side of the containing box 910. In the limiting process, the locking end 330 is controlled to move towards the locking device 930 by the third telescopic rod 320, and the locking end 330 is sleeved on the outer side of the locking device 930. After the locking end 330 and the locking device 930 are locked and fixed, the containing device 900 can be driven by the transfer device 300 to deflect in a predetermined direction, and the containing device 900 and the capacitor group 700 are transported. After the containing device 900 is transported to the surface of the first rotating platform 400, the containing device 900 and the first rotating platform 400 are locked and fixed. After the locking and fixing, the locking end 330 and the locking device 930 are unlocked, and the locking end 330 is controlled to move in the opposite direction. The locking end 330 is controlled to move to the initial safe position, so that the capacitor group 700 and the containing device 900 can rotate normally and stably.

[0040] In order to ensure the stability of the locking between the locking end 330 and the locking device 930, the locking end 330 comprises a locking ring 331, and an annular locking bag 332 is arranged on the inner side of the locking ring 331. The annular locking bag 332 is separately connected with a pumping system. The annular locking bag 332 has a contraction state and an expansion state. When the annular locking bag 332 is controlled to be in the contraction state, the locking end 330 moves towards the locking device 930, and the two are in a non-contact state, so that they can move freely, and the stability of the position of the containing device 900 is ensured. When the annular locking bag 332 is controlled to be in the expansion state, the annular locking bag 332 can be attached to the outer side of the locking device 930, the locking device 930 is locked and fixed, and the stability of the containing device 900 during the deflection movement is ensured.

[0041] The inner side of the annular locking bag 332 can be filled with electrorheological fluid. After the annular locking bag 332 is expanded, the electrorheological fluid can be controlled to be in a conductive state, the annular locking bag 332 can be controlled to be in a solid state, and the locking effect between the locking end 330 and the locking device 930 can be further enhanced, so that the stability of the containing device 900 during the transportation of the capacitor group 700 is ensured.

[0042] A plurality of locking airbags 940 are installed on the inner wall of the accommodating device 900 to limit the capacitor group 700. The locking airbags 940 here also have a contracted state and an expanded state. When the locking airbags 940 are in the expanded state, they can be pressed tightly against the surface of the capacitor group 700, further improving the overall stability of the capacitor group 700 during transportation and welding.

[0043] The locking airbag 940 here is connected to an external air pumping device, which can adjust and control the overall expansion or contraction state of the locking airbag 940; in order to be able to separate the air pumping device from the containing device 900, the efficiency of the air pumping is improved, the volume and mass of the containing device 900 are reduced, and the rotation stability of the containing device 900 is improved; a channel is formed inside the locking device 930 here, and a one-way valve is also provided inside the locking device 930 to adjust the one-way entry of gas. The locking airbag 940 can automatically close after being inflated on the outside, and the locking airbag 940 is controlled to be in an expanded state continuously during the welding process. After the welding is completed, the gas in the locking airbag 940 is discharged to ensure stability during the welding process.

[0044] Specifically; the locking device 930 includes a locking protrusion 931, and a pump air channel for gas to pass through is formed inside the locking protrusion 931, and a one-way valve for one-way entry of gas is installed in the pump air channel. The one-way valve here can select an existing pump air structure. The one-way valve includes an elastic element 932, a one-way sealing valve body 1 933 and a one-way sealing valve body 2 934. Under the action of the elastic element 932, the one-way sealing valve body 1 933 can fit with the surface of the one-way sealing valve body 2 934 to prevent gas from overflowing.

[0045] The locking end 330 here is provided with a connector connected to the air pumping device on the inner side. After the locking end 330 and the locking device 930 are connected, the gas generated by the air pumping device can flow from the inside of the locking end 330 through the locking device 930 and finally enter the locking airbag 940 to control the expansion of the locking airbag 940 to achieve locking and fixation of the capacitor group 700.

[0046] In the process of controlling the deflation of the locking airbag 940, a retractable deflation pin 333 can be installed on the inner side of the locking end 330. The deflation pin 333 is controlled to extend into the inner side of the locking device 930 to push the one-way sealing valve body 933 toward the inside. At this time, the one-way valve can be controlled to be in a two-way air-guiding state. In this process, the gas inside the locking airbag 940 can be extracted, and the locking airbag 940 can be controlled to be in a contracted state, thereby canceling the locking limit of the capacitor group 700; repeating the above actions can complete the adaptive locking of different groups of capacitor groups 700.

[0047] The control of the locking air bag 940 can also be achieved by other ways. A magnetic control valve 920 is installed at the lower end of the containing box 910 and is communicated with the locking air bag 940. The magnetic control valve 920 is a magnetic control opening and closing valve. An electromagnet is installed inside the first rotating platform 400. The electromagnet is controlled to be in a repelling state, so that the magnetic control valve 920 is controlled to be in an open state. The locking air bag 940 has a contraction elasticity, so that the gas inside the locking air bag 940 can be automatically discharged. The electromagnet is controlled to be in an attracting state, so that the magnetic control valve 920 is attracted and locked, the gas is prevented from being discharged, and the stability of the locking air bag 940 is ensured. At the same time, the state of the electromagnet can also be used to attract and fix the containing box 910, so that the stability of the overall containing device 900 is ensured.

[0048] The locking device 930 and the locking end 330 can be symmetrically arranged in two groups, so that the two sides of the containing device 900 can be fixed, and the stability of the overall structure is ensured. Further, the third telescopic rod 320 and the locking end 330 can be symmetrically arranged in four groups. The first group of containing devices 900 can be loaded at the same time, and the second group of containing devices 900 can be prepared for loading. The intermediate time is shortened, and the efficiency of the overall capacitor welding is improved.

[0049] The above is only a preferred embodiment of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A conveying device for capacitor welding, used for conveying a container (900) containing a capacitor group (700) to the surface of a first rotating platform (400), comprising a working platform (100) and a transfer device (300) installed on the upper end of the working platform (100), characterized in that: The transfer device (300) includes a second rotating platform (310) that can rotate around an axis, a locking end (330) and a third telescopic rod (320) for controlling the extension and retraction of the locking end (330) are installed on the upper end of the second rotating platform (310), a locking device (930) that matches the locking end (330) is fixed to the side wall of the accommodating device (900), the locking end (330) includes a locking ring (331), and the outer diameter of the locking device (930) is The inner diameter of the locking ring (331) is smaller than that of the locking ring (331), and an annular locking capsule (332) is fixed to the inner wall of the locking ring (331). The annular locking capsule (332) is connected to a pumping system, and the annular locking capsule (332) is controlled by the pumping system to be in a locked state or a disengaged state. During the welding process, the locking end (330) and the accommodating device (900) are controlled to be in a disengaged state. During the transportation process, the locking end (330) and the accommodating device (900) are controlled to be in a locked state.

2. A capacitor welding conveying device according to claim 1, characterized in that: The annular locking bag (332) is annular and has contraction elasticity.

3. The capacitor welding conveying device according to claim 1, characterized in that: The locking device (930) includes a locking protrusion (931), a pumping air channel for gas to pass through is formed inside the locking protrusion (931), a one-way valve for one-way entry of gas is installed in the pumping air channel, and also includes a pumping air device. A joint connected to the pumping air device is installed on the inner side of the locking end (330). The accommodating device (900) includes a accommodating box body (910), and a plurality of locking air bags (940) connected to the pumping air channel are arranged inside the accommodating box body (910).

4. The capacitor welding conveying device according to claim 3, characterized in that: The one-way valve comprises an elastic one-way sealing valve body (933), a deflation ejector pin (333) is installed inside the locking end (330), and when the locking end (330) and the locking device (930) are coaxially opposed, the one-way sealing valve body (933) is located on the moving path of the deflation ejector pin (333).

5. The capacitor welding conveying device according to claim 1, characterized in that: The cross-section of the outer wall of the locking device (930) is a stepped surface, and the outer diameter of the outer side of the locking device (930) is larger than the inner diameter of the locking device (930).

6. The capacitor welding conveying device according to claim 1, characterized in that: Four third telescopic rods (320) are provided at the upper end of the second rotating platform (310), and a locking end (330) is provided at the telescopic end of each third telescopic rod (320). The four third telescopic rods (320) are symmetrically arranged in two groups.

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