Length-adjustable alligator clip
By designing an adjustable alligator clip structure, the problem of workpieces not being fully submerged in the electro-corrosion process was solved, achieving stable immersion of the workpiece in the electrolyte solution, thus improving the processing applicability and the protective effect of the clamp.
Patent Information
- Application Number
- CN202520362942.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-04
AI Technical Summary
In existing electro-corrosion processes, single-size fixtures cannot adapt to changes in the electrolyte solution level, resulting in the workpiece not being fully immersed in the solution and affecting the processing effect.
An adjustable alligator clip was designed, comprising an alligator clip body, an adapter rod, a connecting rod, and a hanging component. The adjustable connecting rod structure allows the position of the workpiece relative to the electrolyte solution surface to be adjusted, ensuring that the workpiece is always submerged below the liquid surface.
It ensures that the workpiece remains in the electrolyte solution throughout the electro-corrosion process, has a wide range of applications, improves the protective effect of the fixture, avoids corrosion from the electrolyte solution, and enhances service life and safety.
Smart Images
Figure CN223936653U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electro-corrosion production equipment technology, and in particular to an alligator clip with adjustable length. Background Technology
[0002] Electro-corrosion is a technique that uses electrochemical methods to corrode metals and is widely used for marking and processing metal surfaces. Electro-corrosion locally ionizes the metal surface through electrochemical methods, thereby inducing an oxidation reaction and achieving corrosion. Specifically, a conductive fixture is used to hold the workpiece, which is connected to the electro-corrosion tooling. The workpiece is then immersed in an electrolyte solution, forming a corrosion galvanic cell with the workpiece and electrolyte as two electrodes, resulting in a redox reaction.
[0003] In related technologies, the electrolyte solution is stored in the container of the electro-corrosion fixture. To ensure the electro-corrosion effect on the workpiece, the workpiece needs to be immersed in the electrolyte solution. Furthermore, to improve the protection of the fixture, excessive immersion of the fixture in the electrolyte solution should be avoided; the workpiece should be immersed in the container and close to the electrolyte solution surface. Because the electrolyte solution is stored in the container, as the electro-corrosion operation continues, the electrolyte solution level in the container gradually decreases. A single-size fixture can only clamp and fix the workpiece at a single height, resulting in the workpiece not being fully immersed in the electrolyte solution, thus affecting the normal electro-corrosion process.
[0004] Therefore, there is an urgent need to invent an alligator clip with adjustable length to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide an adjustable-length alligator clip, which, when one end of the adjustable-length alligator clip is connected to an electro-corrosion fixture, allows for adjustment of the relative position of the workpiece to the electrolyte surface according to actual needs.
[0006] To achieve this objective, the present invention adopts the following technical solution:
[0007] The adjustable-length alligator clip includes an alligator clip body, an adapter rod, a connecting rod, and a hanging component, all of which are electrically conductive.
[0008] The alligator clip body is used to clamp and fix the workpiece;
[0009] The adapter rod is provided with a first adapter part and a second adapter part at both ends along the axial direction, and the first adapter part is detachably connected to the tail of the alligator clip body.
[0010] The connecting rod is located between the adapter rod and the hanging component. The number of connecting rods is adjustable. The connecting rod has a first connecting part and a second connecting part at both ends along the axial direction. The hanging component has a hanging part and a fixing part at both ends along the axial direction.
[0011] The first connecting part on the connecting rod can be detachably connected to the second adapter part or the second connecting part on another connecting rod;
[0012] The fixing part is detachably connected to the second connecting part on the connecting rod;
[0013] The hanging part can be suspended and fixed on the electro-corrosion tooling.
[0014] As an optional feature, the adjustable-length alligator clip also includes:
[0015] A fixing structure is provided, which includes a first through rod and a second through rod. The tail of the alligator clip body is provided with a first through hole, and the first adapter is provided with a second through hole. The first through rod is sequentially passed through and fixed to the first through hole and the second through hole.
[0016] The first through rod is provided with two third through holes spaced apart along the axial direction. When the first through rod passes through the first through hole and the second through hole, the two third through holes are respectively provided at both ends of the first adapter and the tail of the alligator clip body along the axial direction of the first through rod. Each third through hole is fixed to one of the second through rods.
[0017] As an optional solution, the surfaces of the alligator clip body, the adapter rod, the connecting rod, and the hanging component, except for the connecting area, the contact area with the workpiece, and the contact area with the electro-corrosion fixture, are all covered with an insulating film.
[0018] As an optional solution, the alligator clip body includes:
[0019] Two clamping plates are arranged opposite each other, each clamping plate having a head and a tail opposite each other along the length direction. The head of the clamping plate is used to clamp and fix the workpiece, and the adapter rod is detachably connected to the tail of either of the two clamping plates.
[0020] A pivot shaft is located between the two clamping plates and at the center of the clamping plates along their length. The pivot shaft extends along the width of the clamping plates, and both clamping plates are rotatably connected to the pivot shaft.
[0021] A torsion spring is sleeved on the outer circumference of the rotating shaft, and the two torsion arms of the torsion spring abut against the two clamping plates respectively.
[0022] As an optional solution, each of the clamping plates is provided with a clearance groove at its head. The clearance groove is located at one end near the other clamping plate, and the two clearance grooves in the two clamping plates together form a clamping space, in which the workpiece is located.
[0023] Alternatively, the shape of the clamping space may be the same as the cross-sectional shape of the workpiece.
[0024] As an optional solution, the second adapter is provided with a first threaded hole extending inward along the axial direction, and the first connecting part is provided with a first external thread on its outer peripheral wall along the axial direction, and the first connecting part is threadedly fixed to the first threaded hole.
[0025] The second connecting part is provided with a second threaded hole extending inward along the axial direction, and the fixing part is provided with a second external thread on its outer peripheral wall along the axial direction. The fixing part can be threadedly fixed to the second connecting part, and the first connecting part can be threadedly fixed to the second threaded hole.
[0026] As an optional solution, the hanging part extends outward in an inverted U-shape along the axial direction of the hanging component, the opening of the U-shaped groove inside the hanging part faces downward, and the electro-corrosion tooling is located below the U-shaped groove of the hanging part.
[0027] As an optional feature, the adjustable-length alligator clip also includes:
[0028] Gaskets are located inside the first threaded hole and the second threaded hole.
[0029] As an option, at least two of the gaskets are stacked axially in the first threaded hole, and at least two of the gaskets are stacked axially in the second threaded hole; and / or, the thickness of the gaskets is adjustable.
[0030] The beneficial effects of this utility model are:
[0031] This utility model provides an adjustable-length alligator clamp, which comprises an alligator clamp body, an adapter rod, a connecting rod, and a hanging component, each with a conductive function. The alligator clamp body clamps and fixes the workpiece. A first adapter portion located at one axial end of the adapter rod is detachably connected to the tail of the alligator clamp body. A second adapter portion located at the other axial end of the adapter rod is detachably connected to a first connecting portion located at one axial end of the connecting rod. A second connecting portion located at the other axial end of the connecting rod is detachably connected to a fixing portion located at one axial end of the hanging component. This allows the hanging portion located at the other axial end of the hanging component to be hung and fixed to the electro-corrosion tooling. The electro-corrosion tooling, electrolyte solution, and workpiece can together form a galvanic cell, satisfying the processing requirements of electro-corrosion machining. The requirement is that by making the number of connecting rods between the adapter rod and the hanger adjustable, the second connecting part located at one axial end of one connecting rod can be detachably connected to the first connecting part located at one axial end of another connecting rod. This allows for adjustment of the distance between the alligator clamp body and the hanger, based on actual needs, while meeting the requirements of electro-corrosion processing. In other words, it allows adjustment of the distance between the workpiece clamped and fixed by the alligator clamp body and the electro-corrosion fixture, so that the workpiece changes with the liquid level of the electrolyte solution in the electro-corrosion fixture. This ensures that the workpiece is always immersed in the electrolyte solution and located close to the liquid surface, which not only has a wide range of applications but also improves the protection of the adjustable-length alligator clamp. Attached Figure Description
[0032] Figure 1 This is a schematic diagram of the first structure of the adjustable-length alligator clip provided in this embodiment of the utility model;
[0033] Figure 2 This is a cross-sectional schematic diagram of the adjustable-length alligator clip provided in this embodiment of the utility model;
[0034] Figure 3 yes Figure 2 A magnified view of a section at point A in the middle;
[0035] Figure 4 yes Figure 2 A magnified view of a section at point B in the middle;
[0036] Figure 5 This is a schematic diagram of the second structure of the adjustable-length alligator clip provided in this embodiment of the utility model;
[0037] Figure 6 yes Figure 2 A magnified view of a section at point C;
[0038] Figure 7 yes Figure 5 A magnified view of a section at point D;
[0039] Figure 8 This is a schematic diagram of the third structure of the adjustable-length alligator clip provided in this embodiment of the utility model.
[0040] In the picture:
[0041] 100. Alligator clip body; 110. Clamping plate; 111. Clearance groove; 112. First through hole; 200. Adapter rod; 210. First adapter part; 211. Second through hole; 220. Second adapter part; 221. First threaded hole; 300. Connecting rod; 310. First connecting part; 320. Second connecting part; 321. Second threaded hole; 400. Hanging component; 410. Hanging part; 420. Fixing part; 500. Fixing structure; 510. First through rod; 511. Third through hole; 520. Second through rod. Detailed Implementation
[0042] To make the technical problem solved by this utility model, the technical solution adopted, and the technical effect achieved clearer, the technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.
[0043] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between 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.
[0044] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0045] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.
[0046] Electro-corrosion is a technique that uses electrochemical methods to corrode metals, and it is widely used for marking and processing metal surfaces. Specifically, an electrolyte solution is stored in a container within an electro-corrosion fixture. A conductive clamp holds the workpiece, connecting it to the fixture and immersing the workpiece in the electrolyte solution. This creates a corrosion galvanic cell with the workpiece and electrolyte acting as two electrodes, resulting in a redox reaction. Because the electrolyte solution is stored in a container, the solution level gradually decreases as the electro-corrosion process continues. A single-sized clamp can only hold the workpiece at a single height, preventing complete immersion in the electrolyte solution and affecting the normal electro-corrosion process.
[0047] To solve the above problems, such as Figures 1-4 As shown, this embodiment provides an adjustable-length alligator clip. The adjustable-length alligator clip includes an alligator clip body 100, an adapter rod 200, a connecting rod 300, and a hanging component 400, all of which have conductive functions. The alligator clip body 100 is used to clamp and fix workpieces. The adapter rod 200 has a first adapter portion 210 and a second adapter portion 220 at its two ends along the axial direction. The first adapter portion 210 is detachably connected to the tail of the alligator clip body 100. The connecting rod 300 is located between the adapter rod 200 and the hanging component 400, and the number of connecting rods 300 is adjustable. The connecting rod 300 has a first connecting part 310 and a second connecting part 320 at both ends along the axial direction. The hanging part 400 has a hanging part 410 and a fixing part 420 at both ends along the axial direction. The first connecting part 310 on the connecting rod 300 can be detachably connected to the second adapter part 220 or the second connecting part 320 on another connecting rod 300. The fixing part 420 can be detachably connected to the second connecting part 320 on the connecting rod 300. The hanging part 410 can be hung and fixed on the electro-corrosion tooling.
[0048] This adjustable-length alligator clip comprises a conductive alligator clip body 100, an adapter rod 200, a connecting rod 300, and a hanging component 400. The alligator clip body 100 clamps and fixes the workpiece. A first adapter portion 210 located at one axial end of the adapter rod 200 is detachably connected to the tail of the alligator clip body 100. A second adapter portion 220 located at the other axial end of the adapter rod 200 is detachably connected to a first connecting portion 310 located at one axial end of the connecting rod 300. A second connecting portion 320 located at the other axial end of the connecting rod 300 is detachably connected to a fixing portion 420 located at one axial end of the hanging component 400. This allows the hanging portion 410 at the other axial end of the hanging component 400 to be hung and fixed to the electro-corrosion fixture. This allows the electro-corrosion fixture, electrolyte solution, and workpiece to form a galvanic cell, satisfying the requirements of electro-corrosion... The etching process requires adjustable number of connecting rods 300 between the adapter rod 200 and the hanger 400. This allows for detachable connection between the second connecting part 320 at one axial end of one connecting rod 300 and the first connecting part 310 at one axial end of another connecting rod 300. This enables the adjustment of the distance between the alligator clip body 100 and the hanger 410 based on actual needs, while still meeting the requirements of electro-etching. In other words, it allows the adjustment of the distance between the workpiece clamped and fixed by the alligator clip body 100 and the electro-etching fixture, ensuring the workpiece remains submerged in the electrolyte solution and close to the surface. This not only provides wide applicability but also enhances the protection of the adjustable-length alligator clip.
[0049] It should be noted that in this embodiment, the alligator clip body 100, adapter rod 200, connecting rod 300, and hanging component 400 are all made of brass. Brass has good electrical conductivity, high strength, high hardness, and strong resistance to chemical corrosion. In other embodiments, the alligator clip body 100, adapter rod 200, connecting rod 300, and hanging component 400 may also be made of other materials with conductive properties; this embodiment does not impose specific limitations.
[0050] Furthermore, the surfaces of the alligator clip body 100, adapter rod 200, connecting rod 300, and hanging component 400, except for the connecting area, the area contacting the workpiece, and the area contacting the electro-corrosion fixture, are all covered with an insulating film. By covering the surfaces of the alligator clip body 100, adapter rod 200, connecting rod 300, and hanging component 400, except for the connecting area, the area contacting the workpiece, and the area contacting the electro-corrosion fixture, an insulating film can be wrapped around the adjustable-length alligator clip, ensuring normal conductivity while further preventing electrolyte solution from corroding the clip. This not only increases its service life but also prevents direct contact between the conductive areas and workers, improving safety. It should be noted that in this embodiment, the insulating film is made of PVC (Polyvinyl chloride) material, and the insulating film is wrapped around the area to be wrapped in the adjustable-length alligator clip using a plastic coating process. In other embodiments, the insulating film may also be made of PET (polyethylene glycol terephthalate), PP (polypropylene), PS (polystyrene) or other materials, and this embodiment does not specifically limit the use of these materials.
[0051] As an optional solution, the second adapter 220 is provided with a first threaded hole 221 extending inward along the axial direction, the first connecting part 310 is provided with a first external thread on its outer peripheral wall along the axial direction, the first connecting part 310 is threadedly fixed to the first threaded hole 221, the second connecting part 320 is provided with a second threaded hole 321 extending inward along the axial direction, the fixing part 420 is provided with a second external thread on its outer peripheral wall along the axial direction, the fixing part 420 can be threadedly fixed to the second connecting part 320, and the first connecting part 310 can be threadedly fixed to the second threaded hole 321. By opening a first threaded hole 221 extending inward along the axial direction in the second adapter 220 and providing a first external thread on the outer peripheral wall of the first connecting part 310 along the axial direction, a detachable connection between the adapter rod 200 and the connecting rod 300 is achieved by using the threaded fixation between the first connecting part 310 and the second adapter 220. By providing a second threaded hole 321 extending inward in the second connecting part 320 and providing a second external thread on the outer peripheral wall of the fixing part 420 along the axial direction, a detachable connection between the connecting rod 300 and the hanging part 400 is achieved by using the threaded fixation between the second connecting part 320 and the first connecting part 310 inside another connecting rod 300. The structure is simple and the fixing effect is good.
[0052] To further improve the fixing effect of the adapter rod 200 and the connecting rod 300, the connecting rod 300 and the hanging piece 400, and the connecting rod 300 and the connecting rod 300, the length-adjustable alligator clip also includes a washer, wherein the washer is located in the first threaded hole 221 and the second threaded hole 321.
[0053] like Figure 1 and Figure 2 As shown, the hanging part 410 extends outward in an inverted U-shape along the axial direction of the hanging member 400. The opening of the U-shaped groove inside the hanging part 410 faces downward, and the electro-corrosion fixture is located below the U-shaped groove of the hanging part 410. When it is necessary to hang and fix the hanging member 400 to the electro-corrosion fixture, the hanging part 410 is positioned above the electro-corrosion fixture, and the opening of the U-shaped groove is aligned with the electro-corrosion fixture. Then, the hanging member 400 is moved downward so that the electro-corrosion fixture is located in the U-shaped groove, thereby ensuring the stable hanging and fixing of the hanging member 400 and the electro-corrosion fixture.
[0054] In actual operation, since the electrolyte solution is stored in the container of the electro-corrosion tooling, the hanging part 410 is usually hung on the wall of the container. When electro-corrosion processing of multiple workpieces at the same time, multiple alligator clips with adjustable length need to be hung on the wall of the container at the same time. In order to ensure that the hanging part 400 is properly hung on the wall of the container and does not interfere with each other, at least two gaskets are stacked axially in the first threaded hole 221 and at least two gaskets are stacked axially in the second threaded hole 321. The thickness of the gaskets is adjustable. By providing at least two shims in the first threaded hole 221 and the second threaded hole 321, and making the thickness of the shims adjustable, the screw-in depth of the first connecting part 310 relative to the first threaded hole 221 and the screw-in depth of the fixing part 420 relative to the second threaded hole 321 can be changed. This, in turn, changes the rotation angle of the connecting rod 300 relative to the adapter rod 200 and the rotation angle of the hanging member 400 relative to the connecting rod 300 around the axial direction, so that the outwardly curved hanging parts 410 within the hanging member 400 can be spaced around the wall of the container. In other embodiments, the effect of adjusting the rotation angle of the hanging part 410 around the axial direction can also be achieved simply by adjusting the number of shims or simply by adjusting the thickness of the shims; this embodiment does not impose a specific limitation.
[0055] The adjustable-length alligator clip provided in this embodiment ensures that, during actual operation, the end of the adapter rod 200 near the second adapter 220, the connecting rod 300, and the hanging component 400 are all above the surface of the electrolyte solution, thus preventing the electrolyte solution from corroding the end of the adapter rod 200 near the second adapter 220, the connecting rod 300, and the hanging component 400.
[0056] If the first adapter 210 is fixed to the alligator clip body 100 by threads, the threads are highly susceptible to corrosion due to their low structural strength and large contact area with the electrolyte solution. To ensure effective fixing of the first adapter 210 to the alligator clip body 100 while preventing corrosion of the first adapter 210 by the electrolyte solution, as follows... Figures 5-7 As shown, the adjustable-length alligator clip provided in this embodiment also includes a fixing structure 500, wherein the fixing structure 500 includes a first through rod 510 and a second through rod 520. The tail of the alligator clip body 100 is provided with a first through hole 112, and the first adapter 210 is provided with a second through hole 211. The first through rod 510 passes through and fixes the first through hole 112 and the second through hole 211 in sequence. The first through rod 510 is provided with two third through holes 511 spaced apart along the axial direction. When the first through rod 510 passes through the first through hole 112 and the second through hole 211, the two third through holes 511 are respectively provided at both ends of the first adapter 210 and the tail of the alligator clip body 100 along the axial direction of the first through rod 510. Each third through hole 511 is passed through and fixed with a second through rod 520. By using a first through-hole 510 to sequentially pass through the first through-hole 112 at the tail of the alligator clip body 100 and the second through-hole 211 of the first adapter 210, and by providing two third through-holes 511 spaced apart along the axial direction of the first through-hole 510, the two third through-holes 511 are located on both sides of the alligator clip body 100 and the first adapter 210 along the axial direction of the first through-hole 510, respectively. Two second through-holes 520 are then used to fix the alligator clip body 100 and the first adapter 210 together, achieving a detachable fixation between the alligator clip body 100 and the first adapter 210. Compared to threaded fixing, this method further resists corrosion from electrolyte solutions, increases service life, and allows for direct replacement of the first through-hole 510 and the second through-hole 520 if they are corroded by the electrolyte solution, without needing to directly replace the alligator clip body 100 and the adapter 200.
[0057] In an optional embodiment, the alligator clamp body 100 includes two clamping plates 110 arranged opposite each other, a rotating shaft (not shown in the figure), and a torsion spring (not shown in the figure). Each clamping plate 110 has a head and a tail that are opposite each other along the length direction. The head of the clamping plate 110 is used to clamp and fix the workpiece. A first through hole 112 is provided at the tail of either of the two clamping plates 110. The adapter rod 200 is detachably connected to one of the two clamping plates 110 whose tail is provided with the first through hole 112. The rotating shaft is located between the two clamping plates 110 and at the center of the clamping plates 110 along the length direction. The rotating shaft extends along the width direction of the clamping plates 110. Both clamping plates 110 are rotatably connected to the rotating shaft. The torsion spring is sleeved on the outer periphery of the rotating shaft. The two torsion arms of the torsion spring abut against the two clamping plates 110 respectively.
[0058] When it is necessary to clamp and fix the workpiece, pry the tails of the two clamping plates 110 so that the tails of the two clamping plates 110 move closer to each other around the pivot, thereby opening the head of the two clamping plates 110. Then, place the workpiece between the head of the two clamping plates 110. Finally, release the tails of the two clamping plates 110 so that the torsion spring drives the tails of the two clamping plates 110 to return to their original position under its own elastic force, thereby clamping and fixing the workpiece with the head of the two clamping plates 110.
[0059] As an optional solution, such as Figure 8 As shown, each clamping plate 110 has a clearance groove 111 at its head. The clearance groove 111 is located at the end closest to the other clamping plate 110. The two clearance grooves 111 in the two clamping plates 110 together form a clamping space, in which the workpiece is located. By providing clearance grooves 111 at opposite ends in the heads of the two clamping plates 110, the two clearance grooves 111 together form a clamping space. Placing the workpiece in the clamping space increases the contact area between the workpiece and the clamping plates 110, thus improving the clamping effect on the workpiece.
[0060] To further improve the clamping effect on the workpiece, the shape of the clamping space is the same as the cross-sectional shape of the workpiece. It should be noted that in this embodiment, the cross-sectional shape of the workpiece is elliptical, therefore the clamping space is correspondingly set to an elliptical shape. In other embodiments, the specific shape of the clamping space can be adaptively adjusted according to the actual cross-sectional shape of the workpiece; this embodiment does not impose specific limitations.
[0061] As an optional solution, such as Figure 1 and Figure 2 As shown, the hanging part 410 extends outward in an inverted U-shape along the axial direction of the hanging member 400. The opening of the U-shaped groove inside the hanging part 410 faces downward, and the electro-corrosion fixture is located below the U-shaped groove of the hanging part 410. When it is necessary to hang and fix the hanging member 400 to the electro-corrosion fixture, the hanging part 410 is positioned above the electro-corrosion fixture, and the opening of the U-shaped groove is aligned with the electro-corrosion fixture. Then, the hanging member 400 is moved downward so that the electro-corrosion fixture is located in the U-shaped groove, thereby ensuring the stable hanging and fixing of the hanging member 400 and the electro-corrosion fixture.
[0062] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. An adjustable-length alligator clip, characterized in that, It includes an alligator clip body (100) with conductive function, an adapter rod (200), a connecting rod (300), and a hanging part (400); The alligator clip body (100) is used to clamp and fix the workpiece; The adapter rod (200) has a first adapter part (210) and a second adapter part (220) respectively at both ends along the axial direction. The first adapter part (210) is detachably connected to the tail of the alligator clip body (100). The connecting rod (300) is located between the adapter rod (200) and the hanging member (400). The number of connecting rods (300) is adjustable. The connecting rod (300) has a first connecting part (310) and a second connecting part (320) at both ends along the axial direction. The hanging member (400) has a hanging part (410) and a fixing part (420) at both ends along the axial direction. The first connecting part (310) on the connecting rod (300) can be detachably connected to the second adapter (220) or the second connecting part (320) on another connecting rod (300); The fixing part (420) is detachably connected to the second connecting part (320) on the connecting rod (300); The hanging part (410) can be hung and fixed on the electro-corrosion tooling.
2. The alligator clip with adjustable length according to claim 1, characterized in that, The adjustable-length alligator clip also includes: A fixing structure (500) is provided, which includes a first through rod (510) and a second through rod (520). The tail of the alligator clip body (100) is provided with a first through hole (112), and the first adapter (210) is provided with a second through hole (211). The first through rod (510) is sequentially passed through and fixed to the first through hole (112) and the second through hole (211). The first through rod (510) is provided with two third through holes (511) spaced apart along the axial direction. When the first through rod (510) passes through the first through hole (112) and the second through hole (211), the two third through holes (511) are respectively provided at both ends of the first adapter (210) and the tail of the alligator clip body (100) along the axial direction of the first through rod (510). Each third through hole (511) is fixed to a second through rod (520).
3. The adjustable-length alligator clip according to claim 1, characterized in that, The surfaces of the alligator clip body (100), the adapter rod (200), the connecting rod (300), and the hanging component (400), except for the connecting area, the contact area with the workpiece, and the contact area with the electro-corrosion tooling, are all covered with an insulating film.
4. The alligator clip with adjustable length according to claim 3, characterized in that, The alligator clip body (100) includes: Two clamping plates (110) are arranged opposite each other, each clamping plate (110) has a head and a tail opposite each other along the length direction, the head of the clamping plate (110) is used to clamp and fix the workpiece, and the adapter rod (200) is detachably connected to the tail of either of the two clamping plates (110). A rotating shaft is located between the two clamping plates (110) and at the center of the clamping plates (110) along their length. The rotating shaft extends along the width of the clamping plates (110), and both clamping plates (110) are rotatably connected to the rotating shaft. A torsion spring is sleeved on the outer circumference of the rotating shaft, and the two torsion arms of the torsion spring abut against the two clamps (110) respectively.
5. The alligator clip with adjustable length according to claim 4, characterized in that, Each clamping plate (110) has a clearance groove (111) at its head. The clearance groove (111) is located at one end near the other clamping plate (110). The two clearance grooves (111) in the two clamping plates (110) together form a clamping space, in which the workpiece is located.
6. The alligator clip with adjustable length according to claim 5, characterized in that, The shape of the clamping space is the same as the cross-sectional shape of the workpiece.
7. The alligator clip with adjustable length according to claim 1, characterized in that, The second adapter (220) has a first threaded hole (221) extending inward along the axial direction, and the first connecting part (310) has a first external thread on its outer peripheral wall along the axial direction. The first connecting part (310) is threadedly fixed to the first threaded hole (221). The second connecting part (320) is provided with a second threaded hole (321) extending inward along the axial direction, and the fixing part (420) is provided with a second external thread on its outer peripheral wall along the axial direction. The fixing part (420) can be threadedly fixed to the second connecting part (320), and the first connecting part (310) can be threadedly fixed to the second threaded hole (321).
8. The alligator clip with adjustable length according to claim 7, characterized in that, The hanging part (410) extends outward in an inverted U-shape along the axial direction of the hanging member (400), the opening of the U-shaped groove inside the hanging part (410) faces downward, and the electro-corrosion tooling is located below the U-shaped groove of the hanging part (410).
9. The alligator clip with adjustable length according to claim 7, characterized in that, The adjustable-length alligator clip also includes: The gasket is located inside the first threaded hole (221) and the second threaded hole (321).
10. The alligator clip with adjustable length according to claim 9, characterized in that, At least two gaskets are stacked axially inside the first threaded hole (221), and at least two gaskets are stacked axially inside the second threaded hole (321); and / or, the thickness of the gaskets is adjustable.