Capacitor girdling and sealing mechanism

Abstract

The utility model discloses a capacitor girdling and sealing mechanism which comprises a clamping part arranged on a platform and used for clamping a capacitor, the clamping part comprises a clamping seat, the middle part of the upper end face of the clamping seat is provided with an annular clamping groove, and the bottom of the clamping groove is coaxially provided with a first circular opening penetrating through the lower end face of the clamping seat. An in-out auxiliary mechanism is arranged in the first circular opening and comprises a first telescopic cylinder used for lifting the capacitor, the bottom of the first telescopic cylinder is connected with the lower end face of the platform through a supporting frame, and the upper end of the first telescopic cylinder is provided with a negative pressure adsorption stability maintaining assembly used for being connected with the end face of the capacitor. According to the utility model, the capacitor can conveniently enter and exit from the clamping groove through the work of the first telescopic cylinder, and negative pressure can be generated on the upper end face of the supporting plate through the work of the negative pressure adsorption stability maintaining assembly, so that the capacitor is adsorbed, the stability of the capacitor during upward and downward movement is improved, and the grabbing accuracy of the clamping part is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of capacitor production equipment, and in particular relates to a capacitor waist sealing mechanism. Background Technology

[0002] The production process of aluminum electrolytic capacitors involves multiple steps, mainly including key stages such as foil cutting, stapling, winding, impregnation, shell sealing and waisting, sheathing, aging, charging and sorting, finished product, and lead wire forming. In the assembly, sealing and waisting stage, the core is packaged into an aluminum shell, electrolyte is injected, and the aluminum shell port is sealed with a rubber stopper (to prevent leakage). Then, the upper end of the aluminum shell is waisted and its port is sealed by a waisting and sealing device. The waisting makes the upper end of the shell annularly recessed, which secures the rubber stopper. After sealing, the upper port of the shell is rolled inward to further fix the rubber stopper.

[0003] In existing waist-sealing equipment, some processes are already fully automated. The workflow of fully automated waist-sealing equipment generally consists of the following steps: First, automatic feeding: A robotic arm transports the capacitor shells (or semi-finished products) arranged on the conveyor belt to the workstation (the clamping groove of the clamping seat); Second, the clamps in the clamping groove clamp the capacitor shells to keep them stable, and the upper part of the capacitor shell is radially compressed (waist-sealed) by a mold or rollers to form the required annular groove or closing shape (common in aluminum electrolytic capacitors); Third, the sealing mechanism uses mechanical pressure to cold-press the upper port of the shell to tighten the seal (such as a rubber stopper); Fourth, the robotic arm transfers the waist-sealed capacitor to the next workstation.

[0004] To facilitate the robotic arm's placement and removal of capacitors from the clamping slot, an auxiliary ejection mechanism is typically installed at the bottom of the slot. When removing a capacitor, the auxiliary ejection mechanism moves upwards to position the capacitor at the slot opening, making it easier for the robotic arm to grasp. When placing a capacitor, the robotic arm places it on the auxiliary ejection mechanism, which then moves downwards to lower the capacitor into the clamping slot. Most existing auxiliary ejection mechanisms consist of a vertically movable tray on which the capacitor is placed and moves vertically. However, in practice, it has been found that direct vertical movement of the capacitor on the tray results in poor stability. While reducing the speed of the tray's vertical movement can improve stability to some extent, it also reduces the efficiency of the capacitor's waist sealing. Conversely, when the tray moves upwards too quickly, the capacitor is prone to shifting on the tray, leading to deviations during subsequent robotic arm grasping, and even situations where the robotic arm fails to grasp the capacitor or pushes it over, which is detrimental to capacitor production. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a capacitor waist sealing mechanism to solve the technical problems in the background art.

[0006] This utility model provides the following technical solution:

[0007] A capacitor waist sealing mechanism includes a clamping component mounted on a platform for clamping a capacitor. The clamping component includes a clamping seat, with an annular clamping groove at the center of the upper end face of the clamping seat. A first circular opening, penetrating the lower end face of the clamping seat, is coaxially provided at the bottom of the clamping groove. An entry / exit auxiliary mechanism is provided within the first circular opening. The entry / exit auxiliary mechanism includes a first telescopic cylinder for raising and lowering the capacitor. The bottom of the first telescopic cylinder is connected to the lower end face of the platform via a support frame. A negative pressure adsorption and stabilization component is provided at the upper end of the first telescopic cylinder for connecting to the end face of the capacitor. The negative pressure adsorption and stabilization component includes a negative pressure lifting component that rotates with the capacitor and a negative pressure generating component for generating negative pressure in the negative pressure lifting component.

[0008] Preferably, the clamping component further includes a pneumatic clamping mechanism, which includes a plurality of arc-shaped clamping plates for clamping the sides of the capacitor and a pneumatic drive for driving the arc-shaped clamping plates. The plurality of arc-shaped clamping plates are arranged sequentially at equal intervals around the axial direction of the clamping groove inside the clamping groove. A pneumatic telescopic cylinder is vertically arranged in the middle of the outer side of the arc-shaped clamping plate, and the cylinder body of the pneumatic telescopic cylinder is located inside the clamping seat.

[0009] Preferably, the pneumatic drive component includes an annular cylinder coaxially disposed at the lower end of the clamping groove. The middle part of the annular cylinder is connected to the platform via a second bearing. The air inlet of each pneumatic telescopic cylinder is connected to the upper interior of the annular cylinder via a gas channel. An annular piston is adapted to fit inside the annular cylinder. Several return springs are disposed between the lower end face of the annular piston and the interior of the annular cylinder. Several magnetic blocks are also disposed around the lower end face of the annular piston along its axial direction. An electromagnet for cooperating with the magnetic blocks is disposed directly below the annular cylinder. The electromagnet is disposed on the support frame.

[0010] Preferably, a plurality of the reset springs are arranged at equal intervals along the axial direction of the annular cylinder.

[0011] Preferably, an external gear is coaxially arranged at the lower end of the outer side of the annular cylinder, a drive motor is arranged on the support frame, and a driving gear for meshing with the external gear is also arranged on the shaft of the drive motor.

[0012] Preferably, the negative pressure generating component includes a negative pressure box coaxially disposed at the upper end of the first telescopic cylinder. A first annular seat is coaxially disposed on the upper end face of the negative pressure box. A second circular opening is also coaxially disposed on the upper end face of the negative pressure box within the inner ring of the first annular seat. A negative pressure pipe is also connected to the lower end face of the negative pressure box. The other end of the negative pressure pipe is connected to the air inlet of the negative pressure pump. The negative pressure pump is disposed on a support frame.

[0013] Preferably, the negative pressure box is disc-shaped, and the outer diameter of the negative pressure box is smaller than the diameter of the first circular opening, while the inner diameter of the annular cylinder is equal to the diameter of the first circular opening.

[0014] Preferably, a pressure relief solenoid valve is also provided on the side of the negative pressure box.

[0015] Preferably, the negative pressure support component includes a support plate, the support plate having a negative pressure chamber inside, the upper end face of the support plate having a negative pressure port communicating with the negative pressure chamber, the lower end face of the support plate having a first negative pressure cylinder coaxially communicating with the negative pressure chamber, the lower end of the first negative pressure cylinder being connected to the inner wall of the first annular seat through a first bearing, and the lower end of the first negative pressure cylinder extending into the negative pressure box through a second circular opening.

[0016] Preferably, the tray is disc-shaped, and the outer diameter of the tray is equal to the diameter of the first circular opening.

[0017] Preferably, there are several negative pressure ports, which are arranged in a circular array.

[0018] Preferably, a first guide rod is provided at the position directly above the center of the outer side of the arc-shaped clamping plate. The first guide rod is arranged parallel to the pneumatic telescopic cylinder, and a first guide cavity adapted to the first guide rod is provided on the side wall of the clamping groove.

[0019] Preferably, the height of the arc-shaped clamping plate is equal to the depth of the clamping groove, and the depth of the clamping groove is less than the height of the capacitor.

[0020] Preferably, a second guide rod is provided at the position directly below the center of the outer side of the arc-shaped clamping plate. The second guide rod is arranged parallel to the pneumatic telescopic cylinder, and a second guide cavity adapted to the second guide rod is provided on the side wall of the clamping groove.

[0021] Preferably, the lower end face of the clamping seat is provided with a plurality of stabilizing balls, which are evenly arranged in a circular array, and the upper end face of the platform is provided with an annular guide groove adapted to the stabilizing balls.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] This utility model discloses a capacitor waist sealing mechanism. By setting an entry and exit auxiliary mechanism at the bottom of the clamping groove, the operation of the first telescopic cylinder facilitates the entry and exit of the capacitor in the clamping groove. By working the negative pressure adsorption stabilization component, a negative pressure is generated on the upper surface of the tray to achieve adsorption of the capacitor, thereby improving the stability of the capacitor when it moves upward and downward and improving the accuracy of the clamping component in grasping. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of this utility model.

[0026] Figure 2 This is a schematic diagram of the entry / exit auxiliary mechanism of this utility model.

[0027] Figure 3 This is a schematic diagram of the pneumatic drive component of this utility model.

[0028] Figure 4 This utility model Figure 2 A magnified view of part A.

[0029] In the diagram: 1. Platform; 2. Capacitor; 4. Clamping seat; 5. Clamping groove; 6. Inlet / outlet auxiliary mechanism; 61. First telescopic cylinder; 62. Negative pressure adsorption stabilization component; 621. Negative pressure box; 622. First annular seat; 623. First bearing; 624. First negative pressure cylinder; 625. Second circular opening; 626. Support plate; 627. Negative pressure chamber; 628. Negative pressure port; 629. Negative pressure pipe; 6210. Negative pressure pump; 7. Support frame; 81. Arc-shaped clamping plate; 82. Pneumatic drive component; 822. Annular cylinder body; 824. Annular piston; 825. Magnet; 826. Return spring; 827. Electromagnet; 828. Second bearing; 829. External gear; 8210. Drive motor; 83. First guide cavity; 84. First guide rod; 85. Pneumatic telescopic cylinder; 86. Gas channel; 9. Stabilizing ball. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0032] This utility model provides a capacitor waist sealing mechanism, see reference. Figure 1-4 The system includes a clamping component mounted on a platform 1 for clamping a capacitor 2. The clamping component includes a clamping seat 4. An annular clamping groove 5 is provided in the middle of the upper end face of the clamping seat 4. A first circular opening is coaxially provided at the bottom of the clamping groove 5, penetrating the lower end face of the clamping seat 4. An entry / exit auxiliary mechanism 6 is provided in the first circular opening. The entry / exit auxiliary mechanism 6 includes a first telescopic cylinder 61 for raising and lowering the capacitor 2. The bottom of the first telescopic cylinder 61 is connected to the lower end face of the platform 1 through a support frame 7. A negative pressure adsorption and stabilization component 62 is provided at the upper end of the first telescopic cylinder 61 for connecting to the end face of the capacitor 2. The negative pressure adsorption and stabilization component 62 includes a negative pressure lifting component that rotates with the capacitor 2 and a negative pressure generating component for generating negative pressure in the negative pressure lifting component. The operation of the first telescopic cylinder 61 facilitates the entry and exit of the capacitor 2 into and out of the clamping slot 5. The operation of the negative pressure adsorption stabilization component 62 can generate negative pressure on the upper surface of the tray 626, thereby adsorbing the capacitor 2, improving the stability of the capacitor 2 when it moves upward and downward, and improving the accuracy of the clamping component in grasping.

[0033] refer to Figure 1-4The clamping component further includes a pneumatic clamping mechanism, which includes several arc-shaped clamping plates 81 for clamping the sides of the capacitor 2 and a pneumatic drive unit 82 for driving the arc-shaped clamping plates 81. The height of the arc-shaped clamping plates 81 is equal to the depth of the clamping groove 5, and the depth of the clamping groove 5 is less than the height of the capacitor 2. Several arc-shaped clamping plates 81 are arranged at equal intervals around the axial direction of the clamping groove 5 inside the clamping groove 5. A pneumatic telescopic cylinder 85 is vertically arranged in the middle of the outer side of the arc-shaped clamping plate 81, and the cylinder body of the pneumatic telescopic cylinder 85 is located inside the clamping seat 4. The structure and working principle of the pneumatic telescopic cylinder 85 have been disclosed in a capacitor sealing machine published under publication number CN117976432A, and will not be repeated here. By the synchronous extension of the pneumatic telescopic cylinders 85 of all the arc-shaped clamping plates 81, multiple arc-shaped clamping plates 81 are driven to move in the axial direction, thereby realizing the clamping of the capacitor 2; by the synchronous retraction of multiple pneumatic telescopic cylinders 85, multiple arc-shaped clamping plates 81 can be driven to move in a direction away from the axis, thereby realizing the release of the clamping of the capacitor 2.

[0034] refer to Figure 1 , Figure 3 The pneumatic drive component 82 includes an annular cylinder 822 coaxially disposed at the lower end of the clamping groove 5. The middle part of the annular cylinder 822 is connected to the platform 1 through a second bearing 828. The air inlet end of each pneumatic telescopic cylinder 85 is connected to the upper interior of the annular cylinder 822 through a gas channel 86. An annular piston 824 is adapted inside the annular cylinder 822. A plurality of return springs 826 are disposed between the lower end face of the annular piston 824 and the interior of the annular cylinder 822. A plurality of magnetic blocks 825 are also disposed around the lower end face of the annular piston 824 along its axial direction. An electromagnet 827 for cooperating with the magnetic blocks 825 is disposed directly below the annular cylinder 822. The electromagnet 827 is disposed on the support frame 7. The plurality of return springs 826 are arranged at equal intervals along the axial direction of the annular cylinder 822. The extension of the return spring 826 causes the annular piston 824 to move upward, thereby forcing the gas in the upper part of the annular cylinder 822 through the gas channel 86 into the pneumatic telescopic cylinder 85, achieving synchronous extension of all pneumatic telescopic cylinders 85. When the clamp on the capacitor 2 is released, the pneumatic telescopic cylinder 85 is in the retracted state. The operation of the electromagnet 827 magnetically attracts the magnetic block 825, causing the annular piston 824 to move downward. The return spring 826 is compressed, increasing the volume of the air chamber in the upper part of the annular cylinder 822, thereby drawing gas into the air chamber in the upper part of the annular cylinder 822, achieving synchronous retraction of the pneumatic telescopic cylinders 85.

[0035] refer to Figure 1 , Figure 3An external gear 829 is coaxially mounted on the lower outer side of the annular cylinder 822. A drive motor 8210 is mounted on the support frame 7, and a drive gear for meshing with the external gear 829 is also mounted on the shaft of the drive motor 8210. The operation of the drive motor 8210 drives the external gear 829 to rotate, which in turn drives the shafts of the annular cylinder 822 and the clamping seat 4, thereby causing the capacitor 2 to rotate around the shaft and enter the waist-sealing working state.

[0036] refer to Figure 1 , Figure 2 , Figure 4 The negative pressure generating component includes a negative pressure box 621 coaxially disposed at the upper end of the first telescopic cylinder 61. The negative pressure box 621 is disc-shaped, and its outer diameter is smaller than the diameter of the first circular opening. The inner diameter of the annular cylinder 822 is equal to the diameter of the first circular opening. A first annular seat 622 is coaxially disposed on the upper end face of the negative pressure box 621. A second circular opening 625 is also coaxially disposed on the upper end face of the negative pressure box 621 within the inner ring of the first annular seat 622. A negative pressure pipe 629 is also connected to the lower end face of the negative pressure box 621. The other end of the negative pressure pipe 629 is connected to the air inlet of a negative pressure pump 6210, which is mounted on a support frame 7. A pressure relief solenoid valve is also disposed on the side of the negative pressure box 621. The operation of the negative pressure pump 6210 generates negative pressure inside the negative pressure box 621. The negative pressure pump 6210 does not operate when the clamping component removes the capacitor 2 from the tray 626, but operates at other times. The negative pressure pipe 629 is an extendable negative pressure pipe, and the length of the negative pressure pipe 629 meets the required length of the negative pressure box 621 when it moves.

[0037] refer to Figure 2 , Figure 4 The negative pressure support component includes a support plate 626, which is disc-shaped and has an outer diameter equal to the diameter of the first circular opening. A negative pressure cavity 627 is provided inside the support plate 626. A negative pressure port 628 communicating with the negative pressure cavity 627 is provided on the upper end face of the support plate 626. Several negative pressure ports 628 are provided and are evenly arranged in a circular array. A first negative pressure cylinder 624 communicating with the negative pressure cavity 627 is coaxially provided on the lower end face of the support plate 626. The lower end of the first negative pressure cylinder 624 is connected to the inner wall of the first annular seat 622 through a first bearing 623. The lower end of the first negative pressure cylinder 624 extends into the negative pressure box 621 through the second circular opening 625. The negative pressure generated inside the negative pressure box 621 can generate negative pressure inside the negative pressure chamber 627, which in turn generates negative pressure at the negative pressure port 628, thus achieving adsorption on the end face of the capacitor 2.

[0038] refer to Figure 1A first guide rod 84 is also provided at the upper position of the center of the outer side of the arc-shaped clamping plate 81. The first guide rod 84 is arranged parallel to the pneumatic telescopic cylinder 85. A first guide cavity 83 adapted to the first guide rod 84 is provided on the side wall of the clamping groove 5 to improve the stability of the arc-shaped clamping plate 81 during movement and clamping. A second guide rod is also provided at the lower position of the center of the outer side of the arc-shaped clamping plate 81. The second guide rod is arranged parallel to the pneumatic telescopic cylinder 85. A second guide cavity adapted to the second guide rod is also provided on the side wall of the clamping groove 5.

[0039] refer to Figure 1 The lower end face of the clamping seat 4 is also provided with a number of stabilizing balls 9, which are arranged in a circular array. The upper end face of the platform 1 is provided with an annular guide groove that is adapted to the stabilizing balls 9, so as to improve the stability of the clamping seat 4 when rotating around the axis.

[0040] In the description of this utility model, it should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0041] Furthermore, in the description of this utility model, the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0042] On the other hand, it should be noted that, unless otherwise explicitly specified and limited, the terms "located at," "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections, rotating connections, or indirect connections through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0043] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A capacitor beam waist sealing mechanism comprising a clamping member provided on a platform (1) for clamping a capacitor (2), characterized in that: The clamping component comprises a clamping seat (4), the middle part of the upper end face of the clamping seat (4) is provided with an annular clamping groove (5), the bottom of the clamping groove (5) is coaxially provided with a first circular opening penetrating the lower end face of the clamping seat (4), the first circular opening is provided with an in-out auxiliary mechanism (6), the in-out auxiliary mechanism (6) comprises a first telescopic cylinder (61) for lifting the capacitor (2), the bottom of the first telescopic cylinder (61) is connected with the lower end face of the platform (1) through a support frame (7), the upper end of the first telescopic cylinder (61) is provided with a negative pressure adsorption stability component (62) for connecting with the end face of the capacitor (2), the negative pressure adsorption stability component (62) comprises a negative pressure lifting piece following the rotation of the capacitor (2) and a negative pressure generating piece for generating negative pressure of the negative pressure lifting piece.

2. The capacitor beam-waist seal mechanism of claim 1, wherein The clamping component further comprises a pneumatic clamping mechanism, the pneumatic clamping mechanism comprises a plurality of arc-shaped clamping plates (81) for clamping the side face of the capacitor (2) and a pneumatic driving piece (82) for driving the arc-shaped clamping plates (81), a plurality of the arc-shaped clamping plates (81) are sequentially arranged in the interior of the clamping groove (5) at equal intervals around the axial direction of the clamping groove (5), the middle part of the outer side face of the arc-shaped clamping plate (81) is vertically provided with a pneumatic telescopic cylinder (85), the cylinder body of the pneumatic telescopic cylinder (85) is located in the interior of the clamping seat (4).

3. The capacitor beam-waist seal mechanism of claim 2, wherein, The pneumatic driving piece (82) comprises an annular cylinder body (822) coaxially arranged at the lower end of the clamping groove (5), the middle part of the annular cylinder body (822) is connected with the platform (1) through a second bearing (828), the gas inlet end of each pneumatic telescopic cylinder (85) is respectively communicated with the upper end of the interior of the annular cylinder body (822) through a gas channel (86), the interior of the annular cylinder body (822) is adapted with an annular piston (824), a plurality of return springs (826) are arranged between the lower end face of the annular piston (824) and the interior of the annular cylinder body (822), a plurality of magnetic blocks (825) are further arranged on the lower end face of the annular piston (824) around the axial direction, a electromagnet (827) is further arranged below the annular cylinder body (822) for cooperating with the magnetic blocks (825), the electromagnet (827) is arranged on the support frame (7).

4. The capacitor beam-waist seal mechanism of claim 3, wherein, The outer side face of the annular cylinder body (822) is coaxially provided with an external gear (829), a driving motor (8210) is arranged on the support frame (7), a driving gear is further arranged on the rotating shaft of the driving motor (8210) for engaging with the external gear (829).

5. The capacitor beam-waist seal mechanism of claim 1 wherein, The negative pressure generating piece includes a negative pressure box (621) coaxially arranged on the upper end of the first telescopic cylinder (61), the upper end surface of the negative pressure box (621) is coaxially provided with a first annular seat (622), and the upper end surface of the negative pressure box (621) is coaxially provided with a second circular opening (625) in the inner circle of the first annular seat (622); the lower end surface of the negative pressure box (621) is also provided with a negative pressure pipe (629) in communication, one end of the negative pressure pipe (629) is in communication with the air inlet end of a negative pressure pump (6210), and the negative pressure pump (6210) is arranged on the support frame (7).

6. The capacitor beam-waist seal mechanism of claim 5, wherein, The negative pressure lifting piece includes a supporting plate (626), the supporting plate (626) is internally provided with a negative pressure cavity (627), the upper end surface of the supporting plate (626) is provided with a negative pressure port (628) in communication with the negative pressure cavity (627), the lower end surface of the supporting plate (626) is coaxially provided with a first negative pressure cylinder (624) in communication with the negative pressure cavity (627), the lower end of the first negative pressure cylinder (624) is connected with the inner wall of the first annular seat (622) through a first bearing (623), and the lower end of the first negative pressure cylinder (624) extends to the inside of the negative pressure box (621) through the second circular opening (625).

7. The capacitor beam lead seal mechanism of claim 6 wherein, The negative pressure port (628) is provided with a plurality of negative pressure ports (628) which are uniformly arranged in a circular array.

8. The capacitor beam-waist seal mechanism of claim 2, wherein, The upper side of the middle part of the outer side surface of the arc-shaped clamping plate (81) is also provided with a first guide rod (84), the first guide rod (84) and the pneumatic telescopic cylinder (85) are arranged in parallel with each other, and the side wall of the clamping groove (5) is provided with a first guide cavity (83) matched with the first guide rod (84).

9. The capacitor beam-waist seal mechanism of claim 8, wherein, The lower side of the middle part of the outer side surface of the arc-shaped clamping plate (81) is also provided with a second guide rod, the second guide rod and the pneumatic telescopic cylinder (85) are arranged in parallel with each other, and the side wall of the clamping groove (5) is also provided with a second guide cavity matched with the second guide rod.

10. The capacitor beam lead seal mechanism of claim 1 wherein, The lower end surface of the clamping seat (4) is also provided with a plurality of stable ball bearings (9), the plurality of stable ball bearings (9) are uniformly arranged in a circular array, and the upper end surface of the platform (1) is provided with an annular guide groove matched with the stable ball bearings (9).

Images