Aluminum pot capacitor welding auxiliary tool

Abstract

The invention relates to the technical field of capacitor welding tools, and provides an aluminum pot capacitor welding auxiliary tool which comprises a positioning and supporting assembly, and the positioning and supporting assembly comprises an opening clamping plate used for being clamped into a capacitor body in a matched mode; the auxiliary welding assembly is arranged above the positioning and supporting assembly and comprises a gap supporting plate, a support, a V-shaped positioning plate, a pressing plate and a telescopic air cylinder, the copper strip is arranged on the gap supporting plate, the gap supporting plate is slidably connected with a suspension plate, a telescopic rod of the telescopic air cylinder penetrates through the suspension plate and is slidably connected with the suspension plate, and the V-shaped positioning plate is arranged on the support. The pressing plate is arranged above the gap supporting plate, the upper end of the pressing plate is connected with the V-shaped positioning plate, and the telescopic air cylinder is installed at the upper end of the support in a sliding mode. And when the V-shaped positioning plate moves downwards to be in contact with the capacitor body, the gap supporting plate and the copper strip are driven to move transversely. The accurate welding position of the copper strip and the capacitor body is guaranteed, the welding quality is improved, and welding fixing and dismounting operation is simple.

Description

Technical Field

[0001] The invention relates to the technical field of capacitor welding tooling, and in particular to an auxiliary tooling for welding an aluminum can capacitor. Background Art

[0002] In the welding process of aluminum can capacitors, the copper strip needs to be welded to the gold-sprayed end surface of the capacitor core (such as Figure 6 As shown in the figure, the two ends of the copper strip are welded to the two ends of the aluminum can capacitor respectively, and the middle part of the copper strip cannot be in contact with the capacitor. There are two common methods currently used. The first is to use a soldering iron to solder manually, but this process is time-consuming and labor-intensive, and there is a risk of injury due to improper operation by the user; the second is to use a semi-automatic welding machine through resistance welding. This process requires welding auxiliary tooling. Before welding, the capacitor to be welded needs to be clamped and positioned to ensure the welding position and thus improve the welding accuracy.

[0003] The tooling has two basic requirements: on the one hand, it must achieve stable clamping of the capacitor core, and on the other hand, it must not hinder the welding process. Conventional capacitor tooling is difficult to ensure the accurate contact point between the copper strip and the capacitor, the copper strip welding point has poor centering (i.e., it is not aligned with the radial direction of the capacitor column), and the copper strip welding point is offset, resulting in poor welding results or contact between the copper strip and the capacitor surface. Summary of the invention

[0004] The purpose of the present invention is to provide an auxiliary tool for welding an aluminum can capacitor, which ensures that a copper strip is maintained in a correct welding position and contacts the capacitor, thereby improving the welding quality of the finished product.

[0005] The present invention is achieved through the following technical solutions: an auxiliary tooling for welding an aluminum can capacitor, comprising at least one group of positioning support components, the positioning support components comprising an open card plate for the capacitor body to be adapted and snapped into; an auxiliary welding component, which is arranged above the positioning support component, and the auxiliary welding component comprises a gap support plate, a bracket, a V-shaped positioning plate, a pressure plate and a telescopic cylinder, a copper belt is placed on the gap support plate, the gap support plate is slidably connected with a suspension plate, the telescopic rod of the telescopic cylinder passes through the suspension plate and is slidably connected thereto, the pressure plate is arranged above the gap support plate, and the upper end of the pressure plate is connected to the V-shaped positioning plate, and the telescopic cylinder is slidably installed on the upper end of the bracket; when the V-shaped positioning plate moves down to contact the capacitor body, the gap support plate and the copper belt are driven to move laterally.

[0006] Furthermore, the gap support plate is provided with a fixed protrusion and a flip plate, the flip plate is rotatably connected to the gap support plate, and the axial end of the flip plate is sleeved with a torsion spring; the pressure plate is provided with locking grooves corresponding to the fixed protrusion and the flip plate on one side facing the gap support plate.

[0007] Furthermore, an elastic connecting piece is provided between the pressing plate and the V-shaped positioning plate.

[0008] Furthermore, linear slide grooves are provided on both side end surfaces of the suspension plate, and the upper end of the gap support plate is inserted into the linear slide grooves to be slidably connected thereto.

[0009] Furthermore, the positioning support assembly also includes at least two positioning blocks, one of which is arranged at the bottom of the opening card plate; a tightening cylinder is installed on the upper surface of the opening card plate, and the other positioning block is installed at the telescopic end of the tightening cylinder, and the telescopic direction of the tightening cylinder is toward the middle of the opening card plate.

[0010] Furthermore, an anti-slip film is provided on the positioning block.

[0011] Furthermore, the positioning support assembly also includes a base and side panels on both sides thereof, a horizontal guide rod is provided between the two side panels, the horizontal guide rod passes through the bottom end of the opening card and is slidably connected thereto; one of the side panels is provided with an adjustment bolt for supporting the capacitor body.

[0012] Furthermore, a locking tooth bar is provided below the horizontal guide rod, and an insert piece is provided below the opening card plate, and the insert piece is pushed to be inserted into the locking tooth bar to lock the opening card plate.

[0013] The technical solution of the present invention has at least the following advantages and beneficial effects:

[0014] 1. The gap support plate carries the copper strip and cooperates with the V-shaped positioning plate to achieve automatic centering, ensuring that the copper strip is in the correct welding position. The pressure plate presses the copper strip tightly, and the gap between the copper strip and the surface of the capacitor body is always constant, avoiding contact between the copper strip and the outer surface of the capacitor body;

[0015] 2. The positioning support component combined with the auxiliary welding component can be adapted to various types of capacitor welding and has a wide range of applications;

[0016] 3. During the welding process between the copper belt and the capacitor body, the copper belt cannot move horizontally and be removed from the gap support plate. However, after the welding and fixation are completed, the gap support plate can be easily separated and disassembled from the copper belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0018] Figure 1A schematic diagram of the structure of the aluminum can capacitor welding auxiliary tooling provided by an embodiment of the present invention in a working state;

[0019] Figure 2 This is a front structural schematic diagram of the aluminum can capacitor welding auxiliary tooling of the present invention;

[0020] Figure 3 It is a schematic diagram of the V-shaped positioning plate of the aluminum can capacitor welding auxiliary tooling of the present invention when it is moved downward for positioning;

[0021] Figure 4 This is a schematic diagram of removing the gap support plate and the V-shaped positioning plate after the copper strip welding is completed;

[0022] Figure 5 A top view of the gap support plate in the present invention;

[0023] Figure 6 It is a schematic diagram of the structure of the capacitor body in the present invention.

[0024] Icons: 1-positioning support assembly, 11-opening card plate, 111-insert, 12-positioning block, 121-anti-slip rubber, 13-tightening cylinder, 2-auxiliary welding assembly, 21-gap support plate, 211-fixing protrusion, 212-flip plate, 213-torsion spring, 22-bracket, 23-V-shaped positioning plate, 24-pressure plate, 241-locking groove, 25-telescopic cylinder, 26-suspension plate, 261-slide groove, 27-elastic connector, 3-capacitor body, 4-copper belt, 5-base, 6-side plate, 7-adjusting bolt, 8-locking rack, 9-horizontal guide rod. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0026] 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 invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0028] The following is further described in conjunction with specific embodiments. Figure 1-Figure 6 As shown, the present embodiment is an auxiliary tooling for welding an aluminum can capacitor, comprising at least one group of positioning support components 1, the positioning support component 1 comprising an open card plate 11 for the capacitor body 3 to be adapted and inserted; an auxiliary welding component 2, which is arranged above the positioning support component 1, and the auxiliary welding component 2 comprises a gap support plate 21, a bracket 22, a V-shaped positioning plate 23, a pressing plate 24 and a telescopic cylinder 25, the copper belt 4 is placed on the gap support plate 21, the gap support plate 21 is slidably connected with a suspension plate 26, the telescopic rod of the telescopic cylinder 25 passes through the suspension plate 26 and is slidably connected thereto, the pressing plate 24 is arranged above the gap support plate 21, and the upper end of the pressing plate 24 is connected to the V-shaped positioning plate 23, and the telescopic cylinder 25 is slidably installed on the upper end of the bracket 22; when the V-shaped positioning plate 23 moves downward to contact the capacitor body 3, the gap support plate 21 and the copper belt 4 are driven to move horizontally; specifically, when performing resistance welding, the capacitor body 3 is first placed horizontally and inserted into the open card plate 11 and fixed tightly, and the copper belt 4 is placed The position on the gap supporting plate 21 is aligned with the center of the V-shaped positioning plate 23, and when the telescopic cylinder 25 extends to drive the V-shaped positioning plate 23 to move downward, its center is not the center of the capacitor body 3 that is just aligned. When the lower end of the V-shaped positioning plate 23 contacts the surface of the capacitor body 3, it will automatically center along the curved surface, so that the V-shaped positioning plate 23 is stuck in the capacitor body 3, the gap supporting plate 21 contacts the top of the capacitor body 3, and the V-shaped positioning plate 23 moves downward again, so that the pressing plate 24 presses and fixes the copper belt 4, and the thickness of the gap supporting plate 21 is the gap between the copper belt 4 and the surface of the capacitor body 3. When the copper belt 4 and the capacitor body 3 are in an accurate welding position, resistance welding can be performed at this time; and after welding is completed, the telescopic cylinder 25 first drives the V-shaped positioning plate 23 and the pressing plate 24 to move up a distance, and then moves horizontally to push the gap supporting plate 21 to move out from under the copper belt 4, and the telescopic cylinder 25 moves up for the second time, and the V-shaped positioning plate 23, together with the suspension plate 26 and the gap supporting plate 21, rises and resets synchronously.

[0029] It can be foreseen that this V-shaped positioning plate 23 can adapt to aluminum can capacitors within a certain range of diameters, and can perform welding operations on capacitor bodies 3 of various diameters, and has a wide range of applications.

[0030] like Figure 3-Figure 5As shown, it is more preferable that the gap support plate 21 is provided with a fixed protrusion 211 and a flip plate 212, the flip plate 212 is rotatably connected to the gap support plate 21, and the shaft end of the flip plate 212 is sleeved with a torsion spring 213; the side of the pressure plate 24 facing the gap support plate 21 is respectively provided with a locking groove 241 corresponding to the fixed protrusion 211 and the flip plate 212; specifically, the distance between the flip plate 212 and the fixed protrusion 211 is designed according to the width of the copper strip 4, when the pressure plate When 24 is pressed down, the upper ends of the fixing protrusion 211 and the flip plate 212 will both press into the locking groove 241, limiting the six degrees of freedom of the copper strip 4 and ensuring that the copper strip 4 is welded radially to the capacitor body 3; and after the welding is completed, the pressing plate 24 and the V-shaped positioning plate 23 are moved up, and after the pressing plate 24 is separated from the gap support plate 21, the gap support plate 21 is manually moved, and the copper strip 4 contacts the flip plate 212 to flip it, and the gap support plate 21 can be separated from the copper strip 4 normally.

[0031] In order to prevent the V-shaped positioning plate 23 from being excessively displaced downward and flattening the copper strip 4 , an elastic connecting member 27 is provided between the pressing plate 24 and the V-shaped positioning plate 23 .

[0032] like Figure 3 As shown, in this embodiment, linear slide grooves are provided on both side end faces of the suspension plate 26, and the upper end of the gap support plate 21 is inserted into the linear slide grooves and slidably connected thereto; specifically, the gap support plate 21 is manually moved to synchronize its moving track with the linear slide grooves, and when performing welding positioning, the gap support plate 21 can be moved to the far left end and fixed with a pin.

[0033] like Figure 1 and Figure 2 As shown, the positioning support assembly 1 also includes at least two positioning blocks 12, one of which is arranged at the bottom of the opening card plate 11; a tightening cylinder 13 is installed on the upper surface of the opening card plate 11, and the other positioning block 12 is installed at the telescopic end of the tightening cylinder 13, and the telescopic direction of the tightening cylinder 13 is toward the middle of the opening card plate 11; specifically, the notch of the opening card plate 11 is an arc opening, and the two positioning blocks are faster than the tightening cylinder 13 to form a three-point fixation. This structure makes it possible to clamp and fix capacitor bodies 3 of various diameter models.

[0034] In order to improve the clamping effect and prevent the capacitor body 3 from slipping during rotation, an anti-slip rubber sheet 121 is provided on the positioning block 12 .

[0035] Reference Figure 2As shown, in this embodiment, the positioning support assembly 1 also includes a base 5 and side plates 6 arranged on both sides thereof, a horizontal guide rod 9 is provided between the two side plates 6, the horizontal guide rod 9 passes through the bottom end of the open card plate 11 and is slidably connected thereto, and the open card plate 11 can slide along the horizontal guide rod 9 to adjust the position of the supporting capacitor body 3; an adjusting bolt 7 for supporting the capacitor body 3 is provided on one side plate 6, and the adjusting bolt 7 supports one end of the capacitor body 3 to position the one end, so that the copper belt 4 can fit in when it moves downward, and the axial position of the copper belt 4 on the capacitor body 3 does not need to be adjusted.

[0036] Reference Figure 2 As shown, a locking rack 8 is provided under the horizontal guide rod 9, and an insert 111 is provided under the opening card plate 11. The insert 111 is pushed into the locking rack 8 to lock the opening card plate 11; specifically, after the position of the opening card plate 11 is moved into place, the insert 111 is pushed into the groove of the locking rack 8, so that the opening card plate 11 can no longer move in the direction of the horizontal guide rod 9.

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An auxiliary tooling for welding aluminum can capacitors. Features: It comprises at least one set of positioning support components (1), wherein the positioning support components (1) comprise an opening card plate (11) for the capacitor body (3) to be adapted and snapped into; An auxiliary welding assembly (2) is arranged above the positioning support assembly (1), and the auxiliary welding assembly (2) comprises a gap support plate (21), a bracket (22), a V-shaped positioning plate (23), a pressing plate (24) and a telescopic cylinder (25), the copper strip (4) is placed on the gap support plate (21), the gap support plate (21) is slidably connected to a suspension plate (26), the telescopic rod of the telescopic cylinder (25) passes through the suspension plate (26) and is slidably connected thereto, the pressing plate (24) is arranged above the gap support plate (21), and the upper end of the pressing plate (24) is connected to the V-shaped positioning plate (23), and the telescopic cylinder (25) is slidably mounted on the upper end of the bracket (22); When the V-shaped positioning plate (23) moves downward to contact the capacitor body (3), it drives the gap support plate (21) and the copper belt (4) to move horizontally.

2. The aluminum can capacitor welding auxiliary tooling according to claim 1, Features: The gap support plate (21) is provided with a fixing protrusion (211) and a flip plate (212), the flip plate (212) is rotatably connected to the gap support plate (21), and a torsion spring (213) is sleeved on the shaft end of the flip plate (212); The pressure plate (24) is provided with a locking groove (241) on one side facing the gap support plate (21) and correspondingly snapped into the fixing protrusion (211) and the flip plate (212).

3. The aluminum can capacitor welding auxiliary tooling according to claim 2, Features: An elastic connecting piece (27) is provided between the pressing plate (24) and the V-shaped positioning plate (23).

4. The aluminum can capacitor welding auxiliary tooling according to claim 1, Features: The end surfaces of both sides of the suspension plate (26) are provided with linear slide grooves, and the upper end of the gap support plate (21) is inserted into the linear slide grooves to be slidably connected thereto.

5. The aluminum can capacitor welding auxiliary tooling according to claim 1, Features: The positioning support assembly (1) further comprises at least two positioning blocks (12), one of the positioning blocks (12) being arranged at the bottom of the opening card plate (11); A tightening cylinder (13) is installed on the upper surface of the opening card plate (11), and the other positioning block (12) is installed at the telescopic end of the tightening cylinder (13), and the telescopic direction of the tightening cylinder (13) is toward the middle of the opening card plate (11).

6. The aluminum can capacitor welding auxiliary tooling according to claim 5, Features: The positioning block (12) is provided with an anti-slip rubber sheet (121).

7. The aluminum can capacitor welding auxiliary tooling according to any one of claims 1 to 6, Features: The positioning support assembly (1) further comprises a base (5) and side plates (6) arranged on both sides thereof, a horizontal guide rod (9) being arranged between the two side plates (6), and the horizontal guide rod (9) passing through the bottom end of the opening card plate (11) and being slidably connected thereto; One of the side plates (6) is provided with an adjusting bolt (7) for supporting the capacitor body (3).

8. The aluminum can capacitor welding auxiliary tooling according to claim 7, Features: A locking tooth bar (8) is provided below the horizontal guide rod (9), and an inserting piece (111) is provided below the opening card plate (11). The inserting piece (111) is pushed to be inserted into the locking tooth bar (8) to lock the opening card plate (11).

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