CN212169466U - Coaxial positioning fixture for welding capacitor terminal - Google Patents

Abstract

A coaxial positioning clamp for welding a capacitor terminal comprises a pair of guide rods, wherein an upper positioning plate and a lower positioning plate are arranged on the guide rods in a penetrating manner, and the height of the upper positioning plate and/or the lower positioning plate is adjustable; the upper positioning plate and the lower positioning plate are both provided with V-shaped grooves, vertical collineation of the V-shaped grooves is achieved, and the upper positioning plate and the lower positioning plate are respectively provided with detachable pressing strips. The V-shaped grooves are arranged in a plurality of equidistant intervals, and the V-shaped grooves of the upper positioning plate and the lower positioning plate are aligned one by one. The V-shaped grooves and the pressing strips are used for positioning and clamping, so that complete positioning of one point on two surfaces can be realized, the V-shaped grooves of the upper positioning plate and the lower positioning plate are aligned in a collinear mode, the capacitor core and the terminal are positioned vertically, and coaxiality is guaranteed; the distance between the upper positioning plate and the lower positioning plate can be adjusted according to the height of the capacitor core, and the application range is wider.

Description

Coaxial positioning fixture for welding capacitor terminal

Technical Field

The utility model relates to a condenser makes technical field, concretely relates to coaxial positioning fixture is used in welding of condenser terminal.

Background

For a single-core capacitor with two leading-out ends, the coaxiality of the leading-out terminals at the two leading-out ends needs to be ensured during welding, so that an auxiliary positioning tool needs to be designed to enable the two terminals of the capacitor core to keep collinear, and welding is facilitated. The existing clamping tool transversely clamps and positions the capacitor core and the terminal, and the levelness of two ends is not easy to observe in the welding process, so that the welding is deviated; some clamps shield a welding surface to hinder welding operation, and clamping direction has to be adjusted temporarily during welding, so that coaxiality error is increased.

SUMMERY OF THE UTILITY MODEL

To above-mentioned relevant technical problem with not enough, the utility model provides a condenser terminal welding is with coaxial positioning anchor clamps, with terminal and the vertical fixed behind the cooperation of electric capacity core, it is spacing through the V-arrangement groove, coaxial positioning is good, the simple operation.

In order to solve the technical problem, the utility model discloses a following scheme:

a coaxial positioning clamp for welding a capacitor terminal comprises a pair of guide rods, wherein an upper positioning plate and a lower positioning plate are arranged on the guide rods in a penetrating manner, and the height of the upper positioning plate and/or the lower positioning plate is adjustable;

the upper positioning plate and the lower positioning plate are both provided with V-shaped grooves, the V-shaped grooves are vertically collinear, and the upper positioning plate and the lower positioning plate are respectively provided with detachable pressing strips.

Furthermore, the V-shaped grooves are equidistantly arranged to be a plurality of, and the V-shaped grooves of the upper positioning plate and the lower positioning plate are aligned one by one.

Further, install the core splint between upper locating plate and the lower locating plate, the core splint match and are provided with movable clamp plate, movable clamp plate with the core splint pass through a plurality of spring coupling.

Furthermore, the inner wall of the core clamping plate is provided with arc-shaped grooves corresponding to the V-shaped grooves, and the inner wall of the movable clamping plate is provided with triangular clamping grooves corresponding to the arc-shaped grooves. Rubber layers are arranged in the arc-shaped groove and the triangular clamp groove.

Furthermore, the core clamping plate penetrates through the guide rod, a limiting rod is arranged at the end part of the core clamping plate, and the end part of the movable clamping plate movably penetrates through the limiting rod.

Furthermore, a triangular vertical groove is formed in the side wall of the guide rod, the inner walls of the penetrating holes of the upper positioning plate and the lower positioning plate are in sliding fit with the triangular vertical groove, and locking screws are inserted into the side walls of the upper positioning plate and the lower positioning plate and tightly push against the triangular vertical groove.

The utility model discloses beneficial effect who has:

the terminal is inserted and fixed through the positioning screw, the terminal is more convenient to control compared with a direct clamping terminal, the terminal is not easy to skew, one point of each of two surfaces can be completely positioned by adopting the V-shaped groove and the pressing strip for positioning and clamping, the V-shaped grooves of the upper positioning plate and the lower positioning plate are aligned in a collinear way, and the capacitor core and the terminal are vertically positioned to ensure coaxiality; the distance between the upper positioning plate and the lower positioning plate can be adjusted according to the height of the capacitor core, and the application range is wider.

Set up the core splint and the activity splint of centre gripping electric capacity core, through spring coupling, the centre gripping operation of being convenient for, arc wall and triangle clamp groove cooperation compress tightly the outer wall of electric capacity core, make electric capacity core and terminal keep the collineation, set up the rubber layer in arc wall and the triangle clamp groove, increase centre gripping friction avoids scraping simultaneously and decreases the electric capacity core.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic view of the internal structure of the positioning plate.

Fig. 3 is a schematic view of the use of the embodiment of the present invention (core clamp and movable clamp are not shown).

Reference numerals: 1-guide rod, 10-triangular vertical groove, 2-lower positioning plate, 3-upper positioning plate, 23-V-shaped groove, 4-pressing strip, 40-pressing screw, 5-positioning screw, 6-locking screw, 7-capacitor core, 70-terminal, 8-core clamping plate, 80-arc groove, 81-limiting rod, 9-movable clamping plate, 90-triangular clamping groove and 89-spring.

Detailed Description

The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. It should also be noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may for example be fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Examples

As shown in fig. 1 to 3, the present embodiment provides a coaxial positioning fixture for welding a capacitor terminal, which includes a pair of guide rods 1, an upper positioning plate 3 and a lower positioning plate 2 are mounted on the guide rods 1 in a penetrating manner, and the height of the upper positioning plate 3 and/or the lower positioning plate 2 is adjustable;

the upper positioning plate 3 and the lower positioning plate 2 are both provided with V-shaped grooves 23, the V-shaped grooves 23 are vertically collinear, and the upper positioning plate 3 and the lower positioning plate 2 are respectively provided with detachable pressing strips 4.

Further, a plurality of V-shaped grooves 23 are provided at equal intervals, and the V-shaped grooves 23 of the upper positioning plate 3 and the lower positioning plate 2 are aligned one by one, so that a plurality of capacitor cores 7 and terminals 70 can be positioned at the same time.

The specific implementation process comprises the following steps:

as shown in fig. 3, the terminals 70 are inserted into two ends of the capacitor core 7 and placed between the upper positioning plate 3 and the lower positioning plate 2, the positioning screws 5 are inserted into the terminals 70 from the V-shaped grooves 23, then the pressing strips 4 are pressed to fix the positioning screws 5, and finally the terminals 70 are welded on the end face of the capacitor core 7. The heights of the upper positioning plate 3 and the lower positioning plate 2 can be adjusted according to the height of the capacitor core 7, and both can be adjusted, or only one can be adjusted. Insert terminal 70 through set screw 5 and fix it, for direct centre gripping terminal 70 more convenient control, adopt V-arrangement groove 23 and compress tightly strip 4 location clamp tightly, can realize two sides a little complete positioning, the V-arrangement groove 23 of upper locating plate 3 and lower locating plate 2 aligns one by one, ensures the welding axiality. As shown in fig. 3, when the capacitor core 7 is vertically placed, the terminal 70 at the upper end is supported on the upper end surface of the capacitor core 7, the terminal 70 at the lower end is compressed by the lower end surface of the capacitor core 7, the central axes of the three are always kept vertically collinear, and the capacitor core 7 is not easy to deviate during welding.

Further, in some preferred embodiments, as shown in fig. 1, in order to fix the capacitor core 7, a core clamp plate 8 is installed between the upper positioning plate 3 and the lower positioning plate 2, a movable clamp plate 9 is arranged on the core clamp plate 8 in a matching manner, and the movable clamp plate 9 is connected with the core clamp plate 8 through a plurality of springs 89. When in use, the movable clamping plate 9 is pulled open by hand, then the capacitor core 7 is placed between the core clamping plate 8 and the movable clamping plate 9, the capacitor core 7 is clamped after the hand is released, and the terminals 70 at the two ends are positioned according to the method.

Further, as shown in fig. 1 and 2, in order to coaxially clamp the capacitor core 7 and the terminals 70 at both ends, the inner wall of the core clamp plate 8 is provided with arc-shaped grooves 80 corresponding to the respective V-shaped grooves 23, and the inner wall of the movable clamp plate 9 is provided with triangular clamp grooves 90 corresponding to the respective arc-shaped grooves 80. Under the action of the spring 89, the arc-shaped groove 80 and the triangular clamp groove 90 are matched to compress the outer wall of the capacitor core 7, and the centers of the closed arc-shaped groove 80 and the closed triangular clamp groove 90 are vertically collinear with the center of the V-shaped groove 23. Rubber layers are arranged in the arc-shaped groove 80 and the triangular clamping groove 90, so that clamping friction is increased, and meanwhile, the capacitor core 7 is prevented from being scraped.

Further, as shown in fig. 1, the core clamp plate 8 is inserted into the guide rod 1, the end of the core clamp plate 8 is provided with a limit rod 81, and the end of the movable clamp plate 9 is movably inserted into the limit rod 81. The two ends of the movable clamping plate 9 are assembled on the core clamping plate 8 through the limiting rods 81, the middle parts of the two are connected through a plurality of springs 89, after the movable clamping plate 9 is pulled to be loosened, the arc-shaped groove 80 and the triangular clamping groove 90 are correspondingly well matched.

Further, in some embodiments, a sliding installation manner of the upper positioning plate 3 and the lower positioning plate 2 is provided, as shown in fig. 1, a triangular vertical groove 10 penetrating through both ends is formed on a side wall of the guide rod 1, inner walls of through holes of the upper positioning plate 3 and the lower positioning plate 2 are slidably fitted in the triangular vertical groove 10, and a locking screw 6 is inserted into side walls of the upper positioning plate 3 and the lower positioning plate 2 and abuts against the triangular vertical groove 10. After the upper positioning plate 3 and the lower positioning plate 2 are adjusted to proper heights, the locking screws 6 are inserted, the locking screws 6 are screwed to jack the triangular vertical grooves 10, and two inclined planes of the triangular vertical grooves 10 are tightly clamped with the ends of the locking screws 6, so that the upper positioning plate 3 and the lower positioning plate 2 cannot slide downwards.

Further, in some embodiments, the hold-down bar 4 is mounted to the upper positioning plate 3 and the lower positioning plate 2, respectively, by a pair of hold-down screws 40. The pressing strip 4 can be loosened or pressed by screwing the pressing screw 40, and the operation is convenient.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and the technical essence of the present invention is that within the spirit and principle of the present invention, any simple modification, equivalent replacement, and improvement made to the above embodiments are all within the protection scope of the technical solution of the present invention.

Claims (8)

1. The coaxial positioning fixture for welding the capacitor terminal is characterized by comprising a pair of guide rods (1), wherein an upper positioning plate (3) and a lower positioning plate (2) are arranged on the guide rods (1) in a penetrating manner, and the height of the upper positioning plate (3) and/or the lower positioning plate (2) is adjustable;

the upper positioning plate (3) and the lower positioning plate (2) are both provided with V-shaped grooves (23), the V-shaped grooves (23) are vertically collinear, and the upper positioning plate (3) and the lower positioning plate (2) are respectively provided with detachable pressing strips (4).

2. The coaxial positioning jig for welding capacitor terminals according to claim 1, wherein the V-shaped grooves (23) are provided in plurality at equal intervals, and the V-shaped grooves (23) of the upper positioning plate (3) and the lower positioning plate (2) are aligned one by one.

3. The coaxial positioning fixture for welding the capacitor terminal according to claim 2, wherein a core clamping plate (8) is installed between the upper positioning plate (3) and the lower positioning plate (2), a movable clamping plate (9) is arranged on the core clamping plate (8) in a matching manner, and the movable clamping plate (9) is connected with the core clamping plate (8) through a plurality of springs (89).

4. The coaxial positioning fixture for welding the capacitor terminal according to claim 3, wherein an arc-shaped groove (80) is formed in the inner wall of the core clamping plate (8) corresponding to each V-shaped groove (23), and a triangular clamping groove (90) is formed in the inner wall of the movable clamping plate (9) corresponding to each arc-shaped groove (80).

5. The coaxial positioning jig for welding capacitor terminals according to claim 4, wherein a rubber layer is provided in the arc-shaped groove (80) and the triangular clamp groove (90).

6. The coaxial positioning fixture for welding the capacitor terminal according to claim 4, wherein the core clamping plate (8) is arranged on the guide rod (1) in a penetrating manner, a limiting rod (81) is arranged at the end part of the core clamping plate (8), and the end part of the movable clamping plate (9) is movably arranged on the limiting rod (81) in a penetrating manner.

7. The coaxial positioning fixture for welding the capacitor terminal according to claim 1, wherein a triangular vertical groove (10) is formed in the side wall of the guide rod (1) through two ends, inner walls of through holes of the upper positioning plate (3) and the lower positioning plate (2) are in sliding fit with the triangular vertical groove (10), and a locking screw (6) is inserted into the side wall of the upper positioning plate (3) and the side wall of the lower positioning plate (2) and abuts against the triangular vertical groove (10).

8. The coaxial positioning jig for welding capacitor terminals according to claim 1, wherein the hold-down bar (4) is attached to the upper positioning plate (3) and the lower positioning plate (2) by a pair of hold-down screws (40), respectively.

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