Spot welder with protection mechanism

Abstract

The utility model discloses a spot welding machine with protection mechanism, include: electric welding machine subassembly, including fuselage and handle, be used for realizing convenient use, the mechanism of taking up and paying off, install in the end of fuselage, be used for realizing to spot welding needle's taking up and paying off, wherein, the mechanism of taking up and paying off includes knob and protection cylinder. The utility model discloses through the rotation knob, make the synchronous rotation of the rotary drum of knob end connection, because spot welding needle is located in the helical groove inside rotary drum inside through the guide column and carries out the circumferential sliding, the vertical groove inside vertical sliding of guide column is located in the protection cylinder inside, under the cooperation of both, make spot welding needle outwardly protrude under the rotation of knob, at this moment can carry out spot welding operation, after using, reverse rotation knob, can store spot welding needle to the inside of protection cylinder, not only realized the quick taking up and paying off of spot welding needle, still through the mechanism of taking up and paying off and store spot welding needle in protection cylinder, avoided the outside collision, dust and corrosion.

Description

Technical Field

[0001] This utility model relates to the field of spot welding machine technology, and in particular to a spot welding machine with a protective mechanism. Background Technology

[0002] A cold welding machine is a device that uses high-frequency electromagnetic induction to locally melt and weld metal materials through non-contact heating. It boasts advantages such as high welding speed, small heat-affected zone, high weld quality, and ease of operation, and is widely used in the welding and repair of precision parts, thin-walled materials, and dissimilar metals. By controlling heating time and current intensity, the cold welding machine achieves a precise welding process, effectively avoiding problems such as deformation, oxidation, and cracking found in traditional welding methods. It is a highly efficient and environmentally friendly modern welding tool.

[0003] Although existing welding machines have protective measures in place to block sparks and spatter, protecting the safety of operators and the environment, there is a common problem: after use, the welding head is exposed and lacks a dedicated protective mechanism, making it susceptible to damage from external factors such as collisions, dust, and corrosion. This leads to frequent maintenance, increased operating costs, and even affects the quality and efficiency of welding, thus requiring urgent improvement. Utility Model Content

[0004] One objective of this invention is to provide a spot welding machine with a protective mechanism. This invention addresses the common problem in existing electric welding machines mentioned in the background: although protective measures are taken to block sparks and spatter, protecting the safety of operators and the environment, the welding head is exposed after use and lacks a dedicated protective mechanism. This makes it susceptible to damage from external factors such as collisions, dust, and corrosion, leading to frequent maintenance, increased operating costs, and even affecting the quality and efficiency of welding.

[0005] A spot welding machine with a protective mechanism according to an embodiment of the present invention includes:

[0006] Welding machine components, including the body and handle, for ease of use;

[0007] A retraction mechanism, installed at the end of the machine body, is used to retract and extend the spot welding needle. The retraction mechanism includes a knob and a protective cylinder. Rotary rings are fixedly installed at both ends of the knob, and a rotating cylinder is fixedly installed at one end of the knob. A spiral groove and a vertical groove are respectively opened on the outer side of the rotating cylinder and the inside of the protective cylinder. The spot welding needle is inserted through the knob and the inside of the rotating cylinder. The spot welding needle moves in and out of the rotating cylinder through a guide component.

[0008] The protective mechanism, installed inside the protective cylinder in the take-up and take-down mechanism, is used to protect the spot welding needle.

[0009] Preferably, a control screen is fixedly installed on the top of the body, a trigger button is fixedly installed on the upper end of one side of the grip, and a power interface is fixedly installed on the bottom of the grip.

[0010] Preferably, the knob is rotatably located at the end of the body via a rotating ring.

[0011] Preferably, the guiding component is a guide post, which is movably positioned inside the spiral groove and the vertical groove, respectively.

[0012] Preferably, the protective cylinder is fixedly mounted to the machine body via a mounting base.

[0013] Preferably, the protective mechanism includes a protective plate located at the front end of the protective cylinder and a ring fixed to the end of the knob. The protective plate is rotatably disposed inside the protective cylinder via a rotating shaft. An arc-shaped plate is rotatably disposed at the other end of the outer side of the protective plate, and a connecting rod is rotatably disposed between the arc-shaped plate and the ring.

[0014] Preferably, the protective plate, the arc plate, and the connecting rod are all circular and are provided in multiple quantities.

[0015] The beneficial effects of this utility model are:

[0016] This invention effectively avoids the problem of exposed welding heads being easily damaged by a designed retraction mechanism. The machine body provides stable support, and the handle ensures convenient operation. When using the spot welding machine, rotating the knob causes the rotating drum connected to the knob end to rotate synchronously. The spot welding needle slides circumferentially inside the spiral groove of the rotating drum through the guide post, while the guide post slides vertically inside the vertical groove of the protective cylinder. With the cooperation of these two factors, the spot welding needle extends outward as the knob is rotated, allowing spot welding to be performed. After use, rotating the knob in the opposite direction allows the spot welding needle to be stored inside the protective cylinder. This not only achieves rapid retraction and extension of the spot welding needle but also prevents external collisions, dust, and corrosion by storing the spot welding needle inside the protective cylinder, thereby reducing maintenance frequency, lowering operating costs, and ensuring welding quality and efficiency.

[0017] This invention effectively prevents the spot welding needle from being damaged by external factors through its protective mechanism. When the knob is rotated to trigger the spot welding needle retraction action, the ring fixed to the end of the knob rotates synchronously with the shaft. Through the hinged connecting rod, the arc-shaped plate is pulled radially to retract, which in turn drives multiple protective plates installed in the protective cylinder through the rotating shaft to converge towards the center synchronously. Finally, when the spot welding needle is fully retracted, a ring-shaped closed protective cover is formed. This not only prevents the intrusion of dust and corrosive substances, but also prevents the spot welding needle from being damaged by collisions during idleness or transportation, greatly improving the service life of the spot welding machine, reducing maintenance costs, and ensuring the stability and safety of electric welding operations. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a three-dimensional structural diagram of one side of a spot welding machine with a protective mechanism proposed in this utility model;

[0020] Figure 2 This is a schematic diagram of the protective plate structure of a spot welding machine with a protective mechanism proposed in this utility model.

[0021] Figure 3 This is a schematic diagram of the vertical groove structure of a spot welding machine with a protective mechanism proposed in this utility model.

[0022] Figure 4 This is a schematic diagram of the spiral groove structure of a spot welding machine with a protective mechanism proposed in this utility model.

[0023] In the diagram: 1. Welding machine components; 101. Machine body; 102. Handle; 103. Control panel; 104. Trigger button; 105. Power interface; 2. Retraction mechanism; 201. Knob; 202. Rotary ring; 203. Rotary drum; 204. Spiral groove; 205. Spot welding needle; 206. Guide column; 207. Protective cylinder; 208. Vertical groove; 209. Fixing base; 3. Protective mechanism; 301. Protective plate; 302. Rotating shaft; 303. Circular ring; 304. Arc plate; 305. Connecting rod. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0025] refer to Figure 1-4 A spot welding machine with a protective mechanism, comprising:

[0026] The welding machine assembly 1 includes a body 101 and a handle 102 for easy use;

[0027] The take-up and take-down mechanism 2, installed at the end of the machine body 101, is used to take up and take down the spot welding needle 205. The take-up and take-down mechanism 2 includes a knob 201 and a protective cylinder 207. Rotary rings 202 are fixedly installed at both ends of the knob 201, and a rotating cylinder 203 is fixedly installed at one end of the knob 201. A spiral groove 204 is formed on the outer side of the rotating cylinder 203, and a vertical groove 208 is formed inside the protective cylinder 207. The spot welding needle 205 passes through the inside of both the knob 201 and the rotating cylinder 203 for spot welding. The needle 205 moves inside the rotating cylinder 203 via the guide assembly. By rotating the knob, the rotating cylinder connected to the knob end rotates synchronously. Since the spot welding needle slides circumferentially inside the spiral groove inside the rotating cylinder via the guide post, and slides vertically inside the vertical groove inside the protective cylinder, the spot welding needle extends outward under the rotation of the knob, and spot welding can then be performed. After use, the needle can be retracted into the protective cylinder by rotating the knob in the opposite direction.

[0028] The protective mechanism 3 is installed inside the protective cylinder 207 in the retraction mechanism 2 to protect the spot welding needle 205. The protective mechanism 3 includes a protective plate 301 located at the front end of the protective cylinder 207 and a ring 303 fixed to the end of the knob 201. The protective plate 301 is rotatably mounted inside the protective cylinder 207 via a rotating shaft 302. An arc-shaped plate 304 is rotatably mounted on the other end of the outer side of the protective plate 301. A connecting rod 305 is rotatably mounted between the arc-shaped plate 304 and the ring 303. When the knob is rotated to trigger the spot welding needle retraction action, the ring fixed to the end of the knob rotates synchronously with the shaft. The connecting rod pulls the arc-shaped plate radially to retract, thereby driving multiple protective plates mounted inside the protective cylinder via the rotating shaft to converge synchronously towards the center. Finally, when the spot welding needle is completely retracted, a closed annular protective cover is formed, which not only prevents the intrusion of dust and corrosive substances, but also avoids damage to the spot welding needle due to collision during idleness or transportation.

[0029] Example 1: A control panel 103 is fixedly installed on the top of the body 101, a trigger button 104 is fixedly installed on the upper end of one side of the handle 102, a power interface 105 is fixedly installed on the bottom of the handle 102, and a knob 201 is rotated at the end of the body 101 via a rotating ring 202. The body provides stable support, and the handle ensures convenient operation.

[0030] Example 2: The guide component is a guide post 206, which is movably located inside the spiral groove 204 and the vertical groove 208 respectively. The guide post 206 moves in the groove to ensure that the spot welding needle moves accurately and without deviation. The protective cylinder 207 is fixedly installed to the machine body 101 through the fixed seat 209. Several protective plates 301, arc plates 304 and connecting rods 305 are arranged in a circle to form the first protective barrier and prevent the intrusion of dust and corrosive substances.

[0031] Working principle: First, the welding machine assembly 1 includes a body 101 and a handle 102. The body provides stable support, and the handle ensures convenient operation. The retraction mechanism 2 is installed at the end of the body 101. The retraction of the spot welding needle 205 is achieved through a knob 201 and a protective cylinder 207. Rotary rings 202 are fixed at both ends of the knob 201, and a rotating cylinder 203 is fixed at one end. The outer side of the rotating cylinder 203 and the inside of the protective cylinder 207 are respectively provided with a spiral groove 204 and a vertical groove 208. The spot welding needle 205 passes through the knob 201 and the inside of the rotating cylinder 203, and slides circumferentially and vertically in the spiral groove and the vertical groove through the guide post 206, realizing the extension and retraction of the spot welding needle. When performing spot welding, the knob 201 is rotated, causing the rotating cylinder 203 to rotate synchronously, and the spot welding needle 205... Guided by the guide post 206, the welding needle extends outward. After the operation is completed, the knob is rotated in the opposite direction, and the welding needle retracts into the protective cylinder 207. The protective mechanism 3 is installed inside the protective cylinder 207 and includes a protective plate 301, a ring 303, an arc plate 304, and a connecting rod 305. When the welding needle retracts, the ring 303 rotates with the knob, and the connecting rod 305 pulls the arc plate 304 to retract radially, driving multiple protective plates 301 to converge towards the center to form a closed annular protective cover, which effectively prevents dust and corrosive substances from entering and avoids damage to the welding needle during idleness or transportation. In addition, the top of the body 101 is equipped with a control screen 103, the upper end of the handle 102 is equipped with a trigger button 104, and the bottom is equipped with a power interface 105, which further improves the convenience and safety of operation.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A spot welding machine with a protective mechanism, characterized in that, include: The welding machine assembly (1) includes a body (101) and a handle (102) for easy use; The take-up and take-down mechanism (2) is installed at the end of the machine body (101) and is used to take up and take down the spot welding needle (205). The take-up and take-down mechanism (2) includes a knob (201) and a protective cylinder (207). The two ends of the knob (201) are respectively fixedly provided with a rotating ring (202), and one end of the knob (201) is fixedly provided with a rotating cylinder (203). The outer side of the rotating cylinder (203) and the inside of the protective cylinder (207) are respectively provided with a spiral groove (204) and a vertical groove (208). The spot welding needle (205) is respectively inserted through the inside of the knob (201) and the rotating cylinder (203). The spot welding needle (205) is moved in and out of the rotating cylinder (203) through the guide assembly. The protective mechanism (3) is installed inside the protective cylinder (207) in the take-up and take-down mechanism (2) to protect the spot welding needle (205).

2. A spot welding machine with a protective mechanism according to claim 1, characterized in that, A control screen (103) is fixedly installed on the top of the body (101), a trigger button (104) is fixedly installed on the upper end of one side of the grip (102), and a power interface (105) is fixedly installed on the bottom of the grip (102).

3. A spot welding machine with a protective mechanism according to claim 1, characterized in that, The knob (201) is rotatably located at the end of the body (101) via a rotating ring (202).

4. A spot welding machine with a protective mechanism according to claim 1, characterized in that, The guiding component is a guide post (206), which is movably positioned inside the spiral groove (204) and the vertical groove (208).

5. A spot welding machine with a protective mechanism according to claim 1, characterized in that, The protective cylinder (207) is fixedly mounted to the body (101) via a fixing seat (209).

6. A spot welding machine with a protective mechanism according to claim 1, characterized in that, The protective mechanism (3) includes a protective plate (301) located at the front end of the protective cylinder (207) and a ring (303) fixed to the end of the knob (201). The protective plate (301) is rotatably disposed inside the protective cylinder (207) via a rotating shaft (302). An arc-shaped plate (304) is rotatably disposed at the other end of the outer side of the protective plate (301). A connecting rod (305) is rotatably disposed between the arc-shaped plate (304) and the ring (303).

7. A spot welding machine with a protective mechanism according to claim 6, characterized in that, The protective plate (301), the arc plate (304), and the connecting rod (305) are all circular and are provided in several units.

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