Platinum wire fixed-distance cutting mechanism for spark plug side electrode ignition contact welding

Abstract

The utility model discloses a platinum wire fixed-distance cutting mechanism for spark plug side electrode ignition contact welding. Comprising a base, a discharging mechanism arranged on the base and used for achieving spaced and fixed-distance conveying of platinum wires, an upper die arranged on the base and a lower die arranged on the base in a left-right moving mode and used for being matched with the upper die to cut off the platinum wires, and through holes matched with the platinum wires are formed in the upper die and the lower die. During working, fixed-distance downward movement of the platinum wire is achieved through the discharging mechanism, the through holes of the upper die and the lower die are aligned, the lower end of the platinum wire penetrates through the through holes in the upper die and the lower die, then the lower die moves leftwards, the platinum wire is cut off, the platinum wire exists in the through hole in the lower die, and feeding of the platinum wire is achieved. The platinum wire cutting device is simple in structure, low in cost, capable of achieving fixed-distance cutting of platinum wires and high in accuracy.

Description

Technical Field

[0001] This utility model relates to the field of spark plug processing technology, specifically a platinum wire spacing cutting mechanism for welding the ignition contact of the spark plug side electrode. Background Technology

[0002] A spark plug, also known as a spark nozzle, is a component in a gasoline engine that uses high-voltage electricity to generate an electric spark in the cylinder. A spark plug consists of a shell, an insulator, a center electrode, and a side electrode. When welding the ignition contacts on the side electrode of the spark plug, the platinum wire needs to be cut at a precise distance before being welded to the side electrode. However, because the platinum wire at the ignition contacts is relatively short, manual cutting is inaccurate and inefficient.

[0003] There is an invention patent with application number 202311462594.3 entitled "A Spark Plug Side Electrode Welding Equipment". It discloses a technical solution. The feeding device includes a winding component disposed on the welding device for feeding the side electrode alloy wire, a first rotary drive component for driving the winding component to rotate and feed the wire, a positioning component for feeding the side electrode alloy wire through, and a cutting component slidably disposed on one side of the positioning component for cutting the side electrode alloy wire.

[0004] However, the above solution has the following problems: 1. The method involves welding the alloy wire to the spark plug housing first and then cutting the alloy wire. Because the alloy electrode welded to the housing is very short, usually less than 1mm, taking 0.9 as an example, after welding, about 0.3 of the alloy electrode will melt, so that the height changes from 0.9 to about 0.6. This results in the cutting edge of the cutting tool near the housing side, which cuts this 0.6 height, being very thin. Therefore, the life of this cutting tool near the spark plug housing side is extremely low.

[0005] 2. Because the cutting blade on the side near the outer shell cannot be infinitely thinned, it is limited by this and the minimum cutting height cannot be as low as that of this patent. This patent can achieve cutting and transport of the side electrode as long as the height of the side electrode is greater than the diameter of the alloy wire. Utility Model Content

[0006] The purpose of this invention is to solve the above problems and provide a platinum wire spacing cutting mechanism for welding spark plug side electrode ignition contacts, which can ensure the spacing cutting of platinum wire with high precision and increase the life of the cutting tool.

[0007] The technical solution adopted by this utility model to solve its technical problem is:

[0008] A platinum wire spacing cutting mechanism for welding spark plug side electrode ignition contacts includes a base, a feeding mechanism disposed on the base for conveying platinum wire at intervals, an upper die disposed on the base, and a lower die disposed on the base that moves left and right for cooperating with the upper die to cut the platinum wire. Both the upper die and the lower die are provided with through holes that cooperate with the platinum wire.

[0009] Furthermore, the unloading mechanism includes a fixed frame disposed on the base, an upper clamping mechanism disposed on the fixed frame, and a lower clamping mechanism disposed on the fixed frame and moving up and down on the fixed frame, wherein the fixed frame is provided with a first groove.

[0010] Furthermore, the upper clamping mechanism includes an upper fixing block fixed in the first groove and an upper clamping block disposed in the first groove and movable within the first groove.

[0011] Furthermore, the fixing frame is equipped with an upper hydraulic cylinder that drives the upper clamping block to move left and right;

[0012] The front end of the fixing frame is provided with a positioning block, and the front ends of the upper fixing block and the upper clamping block are both provided with positioning grooves that cooperate with the positioning block.

[0013] Furthermore, the lower clamping mechanism includes a lifting frame disposed in the first groove and moving up and down within the first groove. The front end of the lifting frame is provided with a second groove, and the second groove is provided with a lower fixing block fixed within the second groove and a lower clamping block that moves within the second groove.

[0014] Furthermore, the upper end of the fixed frame is provided with a lifting hydraulic cylinder for driving the lifting frame to rise and fall;

[0015] The lifting frame is equipped with a lower hydraulic cylinder on its side to drive the lower clamping block to move.

[0016] Furthermore, the lower end of the fixed frame is provided with a limiting block that limits the downward movement of the lifting frame.

[0017] Furthermore, the base is equipped with a cutting hydraulic cylinder that drives the lower mold to move left and right.

[0018] The beneficial effects of this utility model are:

[0019] 1. This utility model includes a base, a feeding mechanism mounted on the base for intermittent, fixed-distance feeding of platinum wire, an upper die mounted on the base, and a lower die mounted on the base that moves left and right for cooperating with the upper die to cut the platinum wire. Both the upper and lower dies have through holes for cooperating with the platinum wire. During operation, the feeding mechanism achieves a fixed-distance downward movement of the platinum wire, aligning the through holes of the upper and lower dies. The lower end of the platinum wire passes through the through holes on both dies. Then, the lower die moves to the left, cutting the platinum wire. The platinum wire remains in the through hole on the lower die, thus achieving the feeding of the platinum wire. The structure is simple, the cost is low, and it can achieve fixed-distance cutting of the platinum wire with high precision.

[0020] 2. This utility model has a limiting block at the lower end of the fixed frame to limit the downward movement of the lifting frame. By setting the limiting block, the downward distance of the lifting frame is fixed and the length of the cut platinum wire is fixed. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of the present utility model. Figure 1 ;

[0023] Figure 2 This is a schematic diagram of the structure of the present utility model. Figure 2 ;

[0024] Figure 3 This is a schematic diagram of the internal structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the lower mold structure of this utility model;

[0026] Figure 5 for Figure 4 Enlarged view of a portion of point A in the middle.

[0027] In the diagram: base 1, upper mold 2, lower mold 3, through hole 4, fixing frame 5, upper fixing block 6, upper clamping block 7, upper hydraulic cylinder 8, positioning block 9, positioning groove 10, lifting frame 11, lower fixing block 12, lower clamping block 13, lifting hydraulic cylinder 14, lower hydraulic cylinder 15, limit block 16, cutting hydraulic cylinder 17. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solutions of this utility model, 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 some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0029] like Figure 1 , Figure 4 and Figure 5 As shown, a platinum wire spacing-cutting mechanism for welding spark plug side electrode ignition contacts includes a base 1, a feeding mechanism mounted on the base 1 for spacing-controlled feeding of platinum wire, an upper die 2 mounted on the base 1, and a lower die 3 mounted on the base 1 that moves left and right and cooperates with the upper die 2 to cut the platinum wire. The upper die 2 is fixed to the base 1 by a bracket (not shown in the figure). Both the upper die 2 and the lower die 3 have through holes 4 for cooperating with the platinum wire. During operation, the feeding mechanism moves the platinum wire downward at a fixed distance, aligning the through holes 4 of the upper die 2 and the lower die 3. The lower end of the platinum wire passes through the through holes 4 on the upper die 2 and the lower die 3. Then, the lower die 3 moves to the left, cutting the platinum wire. The platinum wire is stored in the through hole 4 on the lower die 3, thus achieving platinum wire feeding. The structure is simple, the cost is low, and it can achieve spacing-controlled cutting of platinum wire with high precision.

[0030] like Figure 1 As shown, the feeding mechanism includes a fixed frame 5 mounted on the base 1, an upper clamping mechanism mounted on the fixed frame 5, and a lower clamping mechanism mounted on the fixed frame 5 and moving up and down on the fixed frame 5. The fixed frame 5 is fixed to the base 1 and has a first groove. When the upper clamping mechanism clamps the platinum wire, the lower clamping mechanism releases the platinum wire and moves upward. Then, the lower clamping mechanism clamps the platinum wire, the upper clamping mechanism releases the platinum wire, and the lower clamping mechanism moves downward a short distance, thereby achieving fixed-distance feeding of the platinum wire.

[0031] like Figure 1 As shown, the upper clamping mechanism includes an upper fixing block 6 fixed in the first groove and an upper clamping block 7 disposed in the first groove and movable within the first groove. The fixing and loosening of the platinum wire are achieved through the cooperation of the upper fixing block 6 and the upper clamping block 7.

[0032] like Figure 1 As shown, the fixed frame 5 is provided with an upper hydraulic cylinder 8 that drives the upper clamping block 7 to move left and right. The cylinder body end of the upper hydraulic cylinder 8 is fixed on the fixed frame 5, and the piston rod end of the upper hydraulic cylinder 8 is connected to the clamping block 7.

[0033] like Figure 1As shown, the front end of the fixed frame 5 is provided with a positioning block 9, which is fixed to the front end of the fixed frame 5 by screws. The front ends of the upper fixed block 6 and the upper clamping block 7 are both provided with positioning grooves 10 that cooperate with the positioning block 9. The height of the upper clamping mechanism is positioned by the cooperation of the positioning block 9 and the positioning grooves 10, and the left and right movement of the upper clamping block 7 can also be guided.

[0034] like Figure 3 As shown, the lower clamping mechanism includes a lifting frame 11 disposed in the first groove and moving up and down within the first groove. The front end of the lifting frame 11 is provided with a second groove. The second groove is provided with a lower fixing block 12 fixed within the second groove and a lower clamping block 13 movable within the second groove.

[0035] like Figure 2 As shown, the upper end of the fixed frame 5 is provided with a lifting hydraulic cylinder 14 that drives the lifting frame 11 to rise and fall. The cylinder body end of the lifting hydraulic cylinder 14 is fixed to the upper end of the fixed frame 5. The rear end of the lifting frame 11 extends out of the first groove, and the piston rod end of the lifting hydraulic cylinder 14 is connected to the part of the rear end of the lifting frame 11 that extends out of the first groove.

[0036] like Figure 2 As shown, the lifting frame 11 has a lower hydraulic cylinder 15 on its side that drives the lower clamping block 13 to move. The lifting frame 11 has a connecting plate on its side that extends out of the first groove at its rear end. The cylinder body of the lower hydraulic cylinder 15 is fixed on the connecting plate, and the piston rod of the lower hydraulic cylinder 15 is connected to the lower clamping block 13.

[0037] like Figure 2 and Figure 3 As shown, the lower end of the fixed frame 5 is provided with a limiting block 16 that limits the downward movement of the lifting frame 11, ensuring that the descent distance of the lifting frame 11 is fixed and the length of the cut platinum wire is fixed.

[0038] like Figure 4 As shown, the base 1 is equipped with a cutting hydraulic cylinder 17 that drives the lower mold 3 to move left and right.

[0039] In the description of this utility model, it should be noted that the terms "left", "right", "up", "down", 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.

[0040] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection 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.

Claims

1. A platinum wire spacing cutting mechanism for welding ignition contacts on spark plug side electrodes, characterized in that, Includes a base (1), a feeding mechanism disposed on the base (1) for realizing the interval fixed-distance conveying of platinum wire, an upper mold (2) disposed on the base (1), and a lower mold (3) disposed on the base (1) for cooperating with the upper mold (2) to cut the platinum wire, which moves left and right. Both the upper mold (2) and the lower mold (3) are provided with through holes (4) that cooperate with the platinum wire. The feeding mechanism includes a fixed frame (5) set on the base (1), an upper clamping mechanism set on the fixed frame (5), and a lower clamping mechanism set on the fixed frame (5) and raised and lowered on the fixed frame (5). The fixed frame (5) is provided with a first groove. The upper clamping mechanism includes an upper fixing block (6) fixed in the first groove and an upper clamping block (7) disposed in the first groove and movable in the first groove. The fixed frame (5) is equipped with an upper hydraulic cylinder (8) that drives the upper clamping block (7) to move left and right; The front end of the fixing frame (5) is provided with a positioning block (9), and the front ends of the upper fixing block (6) and the upper clamping block (7) are both provided with positioning grooves (10) that cooperate with the positioning block (9). The lower clamping mechanism includes a lifting frame (11) disposed in the first groove and raised and lowered within the first groove. The front end of the lifting frame (11) is provided with a second groove. The second groove is provided with a lower fixing block (12) fixed within the second groove and a lower clamping block (13) movable within the second groove. The upper end of the fixed frame (5) is provided with a lifting hydraulic cylinder (14) for driving the lifting frame (11) to rise and fall. The lifting frame (11) is provided with a lower hydraulic cylinder (15) on its side to drive the lower clamping block (13) to move. The lower end of the fixed frame (5) is provided with a limiting block (16) that limits the downward movement of the lifting frame (11). The base (1) is equipped with a cutting hydraulic cylinder (17) that drives the lower mold (3) to move left and right.

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