A welding head clamp for electric welder

Abstract

The utility model discloses a welding head clamp for electric welding machine, including handle, press bar, clamping seat and pressure clamp piece. Clamping seat fixed mounting is in handle inside, handle end portion thread connection protective cover is used for providing safety protection. Press bar is rotatedly connected with handle through axle stem, and press bar lug is equipped with curved sliding groove, and pressure clamp piece is cooperated with axle stem through guide groove, and is slidably connected with curved sliding groove through slide pin, thereby when press bar rotates, drives pressure clamp piece to slide up and down along positioning groove, realizes the clamping and release of electrode holder. The bottom surface of pressure clamp piece is equipped with straight clamping groove and horizontal clamping groove, and can form multiple point clamping to electrode holder. One end of clamping seat is equipped with electrode holder, and is connected with electric welding machine cable through wiring device, and sets up inside fuse protector, and spring is connected between electrode holder and press bar, is used for the elastic reset of press bar. The utility model realizes stable locking through the cooperation of curved sliding groove and slide pin, combines lever drive and spring reset, makes electrode holder replacement operation simple and easy, and effectively improves welding stability and security.

Description

Technical Field

[0001] This utility model relates to the field of welding head clamp technology, specifically a welding head clamp for an electric welding machine. Background Technology

[0002] Currently, the welding head clamp of an electric welding machine serves as the conductive connection tool between the welding electrode and the welding machine in welding operations. Its structural design directly affects the clamping stability of the welding electrode and the welding efficiency. Traditional welding head clamps generally use spring plates or simple snap-on clamping mechanisms, relying on the unidirectional clamping force of the spring to fix the welding electrode after insertion. Although this type of structure is simple in manufacturing, it still has the following problems in practical use: Traditional welding head clamps primarily rely on the one-way clamping action of springs. When the welding electrode is heated in a high-temperature welding environment or subjected to external vibration, it is prone to loosening or slippage, leading to unstable current conduction during welding, affecting welding quality, and even posing a safety hazard of electrode detachment. Existing welding head clamps typically require significant operating force when changing welding electrodes; some designs even require tightening or rigid locking, which is not only cumbersome but also prone to causing hand fatigue and reducing work efficiency during prolonged welding operations. These structures make it difficult to achieve quick plug-and-play electrode replacement, failing to meet the demands for convenience and efficiency in high-frequency welding operations.

[0003] In summary, existing welding machine head clamps generally suffer from problems such as unstable electrode clamping, cumbersome assembly and disassembly, insufficient labor-saving capability, and poor current conduction stability. There is an urgent need for an improved structure to enhance the reliability of electrode clamping, simplify electrode replacement operations, and ensure the safety and efficiency of welding operations. Utility Model Content

[0004] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] Therefore, the technical solution adopted by this utility model is as follows: a welding head clamp for an electric welding machine, including a handle, a pressure rod, a clamping seat, and a clamping block. The clamping seat is fixedly installed on the inner side of the handle, and a protective cover is threadedly connected to one end of the handle. The protective cover is fitted onto the surface of the clamping seat. Through this structure, a protective barrier can be formed during the welding process, effectively preventing welding sparks or molten droplets from damaging the hands and improving safety.

[0006] In a preferred example, a lug is fixedly mounted on the surface of the pressure rod. The lug has a curved groove and a shaft on its surface, and is rotatably mounted on the handle surface via the shaft. A positioning groove is formed on the surface of the clamping seat, and the clamping block is slidably mounted inside the positioning groove. A guide groove is formed on the top surface of the clamping block, and the guide groove slidably engages with the surface of the shaft. A sliding pin is fixedly mounted on the surface of the clamping block, and the sliding pin slidably engages with the inner side of the curved groove. Through this structure, the rotation of the pressure rod can drive the sliding pin via the lug, guiding the clamping block to slide up and down along the positioning groove, thereby achieving the clamping and release of the welding electrode. Specifically, the lever action of the pressure rod can be converted into the linear motion of the clamping block, ensuring the stability and reliability of the clamping action.

[0007] In a preferred example, the bottom surface of the clamping block has a vertical clamping groove and a horizontal clamping groove, which are vertically distributed and arranged opposite to the positioning groove. This structure can form multi-point clamping of the welding electrode during the clamping process, avoiding loosening of the welding electrode due to uneven force, and further improving the stability of welding current conduction.

[0008] In a preferred example, an electrode connector is fixedly connected to one end of the clamp, and a connector is provided on the surface of the handle for connecting to the welding machine cable electrode. A fuse is located inside the electrode connector and is electrically connected to the connector. Specifically, in the event of a circuit malfunction, the fuse can quickly cut off the current, effectively protecting the circuit and the operator's safety.

[0009] In a preferred example, a spring is fixedly connected between the top surface of the electrode socket and the pressure rod. The spring provides elastic restoring force when the pressure rod is released, enabling the pressure rod to automatically reset and ensuring the stability of the welding rod in the clamped state. Specifically, this prevents the welding rod from loosening due to the operator forgetting to reset it.

[0010] In a preferred example, the curved slide is arc-shaped, with its center offset from the axis of the shaft, and both ends of the shaft are rotatably mounted on the inside of the handle. This structure optimizes the movement trajectory of the sliding pin when the pressure rod rotates, making the linear movement of the clamping block smoother and improving the fluidity of the electrode clamping process.

[0011] In a preferred example, the clamp and electrode socket are made of metal to ensure conductivity and structural strength; the clamping block and clamping rod are made of insulating material to effectively prevent electric shock to the operator during use and improve safety.

[0012] In a preferred example, the protective cover is made of a high-temperature resistant and flame-retardant material, which can withstand the impact of high temperatures, electric arcs and molten droplets during the welding process, avoiding operational risks and improving the durability and safety performance of the product.

[0013] The beneficial effects achieved by this utility model are as follows: 1. In this utility model, the precise guidance of the movement of the clamping block is achieved through the cooperation of the curved groove and the sliding pin. Compared with the traditional welding rod clamping structure that relies on spring for one-way clamping, it can form a stable locking effect during the clamping process. This not only prevents the welding rod from loosening due to vibration or position change during use, but also improves the stability of welding current conduction.

[0014] 2. In this invention, the pressure rod and the shaft form a lever transmission structure, which, combined with the elastic return of the spring, makes the clamping and releasing of the welding rod more labor-saving and efficient. The operator only needs to press the pressure rod slightly to complete the welding rod replacement, reducing the cumbersome operation and hand fatigue caused by traditional tightening or rigid clip structures, and significantly improving the convenience of operation and welding efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model; Figure 2 This is a schematic diagram of the pressure bar and clamping seat structure according to one embodiment of the present invention; Figure 3 This is a side view of the pressure bar and clamping seat according to one embodiment of the present invention; Figure 4 This is a schematic diagram of the clamping block structure according to an embodiment of the present invention.

[0016] Figure label: 100. Handle; 110. Protective cover; 120. Connector; 200, pressure rod; 210, lug; 211, curved slide groove; 212, shaft; 220, spring; 300, clamp; 310, electrode connector; 320, positioning groove; 400, clamping block; 410, guide groove; 420, sliding pin; 401, straight clamping groove; 402, horizontal clamping groove. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0018] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0019] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a welding head clamp for an electric welding machine.

[0020] Combination Figures 1-4As shown, the present invention provides a welding head clamp for an electric welding machine, comprising a handle 100, a pressure rod 200, a clamping seat 300, and a clamping block 400.

[0021] In this embodiment, the clamp 300 is fixedly installed on the inner side of the handle 100, and a protective cover 110 is threadedly connected to one end of the handle 100. The protective cover 110 is sleeved on the surface of the clamp 300 and can form a protective barrier during the welding process.

[0022] The pressure rod 200 has an ear piece 210 fixedly installed on its surface. The ear piece 210 has a curved groove 211 and a shaft 212 on its surface, and is rotatably connected to the surface of the handle 100 through the shaft 212.

[0023] The surface of the clamp 300 is provided with a positioning groove 320, and the clamping block 400 is slidably installed on the inner side of the positioning groove 320.

[0024] The top surface of the clamping block 400 is provided with a guide groove 410, which is slidably sleeved on the surface of the shaft 212, guiding the clamping block 400 during movement. A sliding pin 420 is fixedly installed on the surface of the clamping block 400, which is slidably sleeved on the inner side of the curved sliding groove 211, thereby achieving linear clamping movement of the clamping block 400 through the guidance of the lug 210 when the pressure rod 200 rotates. In this embodiment, the bottom surface of the clamping block 400 is provided with a straight clamping groove 401 and a horizontal clamping groove 402, which are vertically distributed and arranged relative to the surface of the positioning groove 320. A welding rod can be placed between the straight clamping groove 401 and the horizontal clamping groove 402, forming a stable clamp with the clamping seat 300 when the clamping block 400 is pressed down.

[0025] In this embodiment, an electrode connector 310 is fixedly connected to one end of the clamp 300 for current conduction. A connector 120 is provided on the surface of the handle 100 for connection to the welding machine cable electrode. A fuse is provided inside the electrode connector 310, electrically connected to the connector 120, which can cut off the circuit in case of abnormal current, ensuring welding safety.

[0026] In this embodiment, a spring 220 is fixedly connected between the top surface of the electrode socket 310 and the pressure rod 200. Under normal conditions, the spring 220 lifts the pressure rod 200, thereby achieving elastic deflection control of the pressure rod 200. When the operator presses the pressure rod 200, the spring 220 is compressed and automatically resets upon release.

[0027] In this embodiment, the curved groove 211 is designed in an arc shape, and its center is offset from the axis of the shaft 212. The two ends of the shaft 212 are respectively rotatably mounted on the inner side of the handle 100. With this structure, the movement trajectory of the sliding pin 420 can be optimized when the pressure rod 200 rotates, thereby achieving smooth linear movement of the clamping block 400.

[0028] In this embodiment, the clamp 300 and electrode connector 310 are made of metal to ensure good conductivity and mechanical strength; the clamping block 400 and the pressure rod 200 are made of insulating material to prevent current leakage during operation and improve safety.

[0029] In this embodiment, the protective cover 110 is made of high-temperature resistant and flame-retardant material, which can withstand the impact of high temperature and electric arc sparks during the welding process, further improving the operator's safety.

[0030] Working principle and usage process of this utility model: During use, the operator holds the welding head clamp by the handle 100, and the protective cover 110 is fitted onto the outer surface of the clamp 300 to form a protective barrier, which can effectively prevent burns to the operator's hands from sparks or high-temperature metal splashes during welding.

[0031] The pressure lever 200 is rotatably connected to the handle 100 via the shaft 212, forming a lever-type control structure. The lug 210 fixed to the surface of the pressure lever 200 engages with the curved slide groove 211. When the operator presses or lifts the pressure lever 200, the lug 210 drives the clamping block 400 to slide up and down along the positioning groove 320. The guide groove 410 on the top surface of the clamping block 400 engages with the shaft 212, ensuring stable guidance during movement. The sliding pin 420 fixed to the surface of the clamping block 400 slides within the curved slide groove 211, thus converting the rotational motion of the pressure lever 200 into the linear clamping action of the clamping block 400. The curved slide groove 211 is designed in an arc shape, with its center offset from the axis of the shaft 212, optimizing the sliding stroke of the clamping block 400 during the rotation of the pressure lever 200.

[0032] Under normal conditions, the spring 220 automatically pushes the pressure rod 200 back to its original position under the elastic recovery action. The curved slide groove 211 and the sliding pin 420 guide the downward movement of the clamping block 400 under the deflection guidance of the pressure rod 200. The clamping block 400 and the clamping seat 300 automatically clamp the welding rod.

[0033] When the operator presses the pressure lever 200, the pressure block 400 moves up and down through the curved slide groove 211 and the sliding pin 420, releasing the welding rod held by the pressure block 400 and the clamping seat 300, and loading a new welding rod.

[0034] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A welding head clamp for an electric welding machine, characterized in that, The device includes a handle (100), a pressure bar (200), a clamp (300), and a clamping block (400). The clamp (300) is fixedly installed on the inner side of the handle (100), and one end of the handle (100) is threadedly connected to a protective cover (110) that is sleeved on the surface of the clamp (300). The surface of the pressure bar (200) is fixedly installed with an ear piece (210), and the surface of the ear piece (210) is provided with a curved groove (211) and a shaft (212), which rotates through the shaft (212). The grip (100) is mounted on the surface of the grip (300); the clamp (300) has a positioning groove (320) on its surface, and the clamping block (400) is slidably mounted on the inner side of the positioning groove (320); the clamping block (400) has a guide groove (410) on its top surface, and the guide groove (410) is slidably sleeved on the surface of the shaft (212); the clamping block (400) has a sliding pin (420) fixedly mounted on its surface, and the sliding pin (420) is slidably sleeved on the inner side of the curved groove (211).

2. The welding head clamp for an electric welding machine according to claim 1, characterized in that, The bottom surface of the clamping block (400) is provided with vertically distributed straight clamping grooves (401) and horizontal clamping grooves (402), and the straight clamping grooves (401) and the horizontal clamping grooves (402) are arranged opposite to the surface of the positioning groove (320) for clamping welding rods.

3. The welding head clamp for an electric welding machine according to claim 1, characterized in that, One end of the clamp (300) is fixedly connected to an electrode connector (310). The surface of the handle (100) is provided with a connector (120) for connecting to the electrode of the welding machine cable. The electrode connector (310) is provided with a fuse protector inside, and is electrically connected to the connector (120) through the fuse protector.

4. A welding head clamp for an electric welding machine according to claim 3, characterized in that, A spring (220) is fixedly connected between the top surface of the electrode socket (310) and the pressure rod (200) for elastic deflection control of the pressure rod (200).

5. A welding head clamp for an electric welding machine according to claim 1, characterized in that, The curved groove (211) is arc-shaped, and the center of the curved groove (211) is offset from the axis of the shaft (212). The two ends of the shaft (212) are rotatably mounted on the inner side of the handle (100).

6. A welding head clamp for an electric welding machine according to claim 1, characterized in that, The clamp (300) and electrode connector (310) are made of metal, while the clamp block (400) and the pressure rod (200) are made of insulating material.

7. A welding head clamp for an electric welding machine according to claim 1, characterized in that, The protective cover (110) is made of high-temperature resistant and flame-retardant material.

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