Electric welding machine anti-sparking ground clamp

Abstract

This utility model belongs to the field of grounding clamp technology, specifically relating to an anti-sparking grounding clamp for welding machines. It includes a screw, with a handle welded to the upper end of the screw. An upper clamping plate is threadedly connected to the outer side of the screw. A lower clamping plate is fixedly sleeved on the outer side of the screw, below the upper clamping plate. A friction groove is formed at the lower end of the upper clamping plate, and a second friction groove is formed at the upper end of the lower clamping plate. A guide post is fixedly connected to the lower left side of the upper clamping plate, and the guide post is slidably connected to the lower clamping plate. An anti-detachment mechanism is provided on both the screw and the lower clamping plate. This design, through the action of the screw, handle, and guide post, drives the upper clamping plate to move. Combined with the action of the lower clamping plate, it can fix the grounding clamp to the welding workpiece. Furthermore, with the action of the insertion hole and insertion post, it can limit the insertion of the screw, preventing the upper clamping plate from loosening due to screw vibration and deflection.

Description

Technical Field

[0001] This utility model belongs to the field of grounding clamp technology, specifically relating to anti-sparking grounding clamps for welding machines. Background Technology

[0002] A utility model patent with patent authorization announcement number CN220042318U discloses a welding ground wire clamp, comprising: a rotary clamp including a first clamp and a second clamp, the first clamp including a first gripping part, a first clamping part and a first hinge part located between the two, the second clamp including a second gripping part, a second clamping part and a second hinge part located between the two, the first hinge part and the second hinge part being hinged together; an elastic element is provided between the first gripping part and the second gripping part, which is configured to provide a force to move them away from each other; a first clamping groove is formed between the first clamping part and the second clamping part, a sleeve is located in the first clamping groove and is clamped; a ground wire cable is connected to the first clamping part and / or the second clamping part; and a fixing clamp for clamping the workpiece to be welded; the fixing clamp is provided with a connecting tube, the sleeve is sleeved on the outside of the connecting tube and can rotate around the connecting tube.

[0003] The grounding clamp is an important accessory for welding machines, serving to connect the welding machine to the workpiece. However, due to prolonged operation and high-power, high-current welding, the grounding clamp can overheat and glow red, causing the clamp spring to soften and the clamp to deform. This can lead to issues such as sparking during operation and a short service life. Using it in hazardous areas could result in accidents such as fires or electric shocks. Summary of the Invention

[0004] The purpose of this utility model is to provide a spark-proof grounding clamp for welding machines, which solves the problem that due to long-term operation of welding machines with high power and high current, the grounding clamp will heat up and turn red, causing the grounding clamp spring to soften and the grounding clamp to deform, resulting in sparking and short service life during operation. In addition, it may cause accidents such as fire and electric shock when used in dangerous areas.

[0005] To achieve the above objectives, this utility model provides a spark-proof grounding clamp for an electric welding machine, comprising a screw rod, a handle welded to the upper end of the screw rod, an upper clamping plate connected to the outer side of the screw rod by a thread, a lower clamping plate fixedly sleeved on the outer side of the screw rod and below the upper clamping plate, a friction groove one being formed at the lower end of the upper clamping plate, a friction groove two being formed at the upper end of the lower clamping plate, a guide post fixedly connected to the lower left side of the upper clamping plate, the guide post being slidably connected to the lower clamping plate, and an anti-detachment mechanism being provided on both the screw rod and the lower clamping plate.

[0006] The principle of this utility model is as follows: by inserting the grounding wire between the fixing plate and the pressure plate, the grounding wire comes into contact with the friction plate. Then, the pressure plate is pushed up, which drives the bolt to move, so that the bolt slides along the inner wall of the fixing plate, and the grounding wire is submerged in the friction groove. Then, the washer is pushed through the screw, so that the washer comes into contact with the fixing plate, and the friction block comes into contact with the fixing plate. Then, the nut is pushed to contact the bolt surface. Under the threaded connection, the nut can be installed, and the bolt can be fixed, so that the pressure plate cooperates with the fixing plate to complete the fixing of the grounding wire.

[0007] By pulling the end ball away from the fixed frame, the telescopic plate slides along the vertical part of the fixed frame, causing the insertion post to move. This causes the elastic rope to deform and the insertion post to disengage from the insertion hole. Then, the handle is pushed to rotate, causing the screw to rotate. Due to the threaded connection, the upper clamping plate can be moved, causing the guide post to slide along the inner wall of the lower clamping plate. This allows the upper clamping plate to contact the weldment. Together with the action of the lower clamping plate, the grounding clamp can be kept in a stable clamping state. Finally, the end ball is released, allowing the elastic rope to recover its deformation and pushing the insertion post to insert into the next insertion hole on the screw surface, limiting the screw and preventing vibration and deflection of the screw.

[0008] The beneficial effects of this utility model are as follows: This solution uses the screw, handle, guide post and other structures to drive the upper clamping plate to move, and with the action of the lower clamping plate, the ground wire can be clamped and fixed on the weldment. With the action of the insertion hole, insertion post and other structures, the screw can be inserted and limited, avoiding the problem of the upper clamping plate loosening due to screw vibration and deflection. With the action of the pressure plate, fixing plate and other structures, the grounding wire can be clamped. With the action of friction groove, friction plate and other structures, the stability of the grounding wire can be improved. With the cooperation of bolts and nuts, the pressure plate can be firmly locked. In addition, with the action of friction block and gasket, the installation stability of nut can be improved, so as to ensure the stable pressing of grounding wire.

[0009] Furthermore, multiple friction grooves are provided, and the multiple friction grooves are evenly distributed on the upper clamping plate. Multiple friction grooves are provided, and the multiple friction grooves are evenly distributed on the lower clamping plate. By providing friction grooves one and friction groove two, the friction effect on the surfaces of the upper and lower clamping plates can be improved.

[0010] Furthermore, a fixing plate is fixedly connected to the left end of the upper clamping plate, a bolt is movably connected to the inner wall of the fixing plate, a pressure plate is movably connected to the outer side of the bolt, the pressure plate is slidably connected to the upper clamping plate, a washer is in contact with the upper end of the fixing plate, the washer is movably connected to the bolt, a nut is threaded to the outer side of the bolt, the nut is in contact with the washer, and a friction groove is provided at the lower end of the fixing plate. Through the action of the bolt, nut and other structures, the pressure plate can clamp and fix the grounding wire for use.

[0011] Furthermore, six friction blocks arranged in a circular array are fixedly connected to the side of the gasket, and each friction block is in contact with the fixed plate. The contact friction effect of the gasket can be improved by setting the friction blocks.

[0012] Furthermore, a plurality of friction plates are fixedly connected to the upper end of the pressure plate, and the plurality of friction plates are evenly distributed on the pressure plate. By setting the friction plates, the friction effect of the pressure plate can be improved.

[0013] Furthermore, the anti-detachment mechanism includes an insertion hole. The end face of the screw has an insertion hole. A fixing frame is fixedly connected to the front of the lower clamping plate. A telescopic piece is slidably connected to the vertical part of the fixing frame. An end ball, made of rubber, is fixedly connected to the front of the telescopic piece. A plug is fixedly connected to the back of the telescopic piece. The plug is slidably connected to the insertion hole. An elastic rope is fixedly connected to the front of the plug. The other end of the elastic rope is fixedly connected to the vertical part of the fixing frame. Through the function of the insertion hole, plug, and other structures, the screw can be inserted and limited, avoiding the problem of screw vibration and deflection.

[0014] Furthermore, the socket is provided in multiple ways, and the multiple sockets are arranged in a circular array on the screw. The sockets facilitate insertion and use with the plug. Attached Figure Description

[0015] Figure 1 This is a perspective view of the overall structure of the anti-sparking grounding clamp for an electric welding machine according to an embodiment of the present invention;

[0016] Figure 2 The anti-sparking grounding clamp for the welding machine in this embodiment of the invention Figure 1 A bottom view;

[0017] Figure 3 The anti-sparking grounding clamp for the welding machine in this embodiment of the invention Figure 1 Side view;

[0018] Figure 4 The anti-sparking grounding clamp for the welding machine in this embodiment of the invention Figure 2 Enlarged view of point A;

[0019] Figure 5 The anti-sparking grounding clamp for the welding machine in this embodiment of the invention Figure 3 Enlarged view of point B.

[0020] The following detailed description illustrates the specific implementation method:

[0021] The reference numerals in the accompanying drawings of the instruction manual include: screw 1, handle 2, upper clamping plate 3, lower clamping plate 4, friction groove one 5, friction groove two 6, guide post 7, anti-detachment mechanism 8, fixing plate 9, bolt 10, pressure plate 11, washer 12, nut 13, friction block 14, friction groove three 15, friction plate 16, insertion hole 81, fixing frame 82, telescopic plate 83, end ball 84, insertion post 85, elastic rope 86. Detailed Implementation

[0022] The implementation examples are basically as follows Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, this embodiment provides a spark-proof grounding clamp for a welding machine, including a screw 1, a handle 2 welded to the upper end of the screw 1, an upper clamping plate 3 connected to the outer side of the screw 1 by a thread, a lower clamping plate 4 fixedly sleeved on the outer side of the screw 1 and below the upper clamping plate 3, a friction groove 5 is provided at the lower end of the upper clamping plate 3, a friction groove 6 is provided at the upper end of the lower clamping plate 4, and a guide post 7 is fixedly connected to the lower left side of the upper clamping plate 3, and the guide post 7 is slidably connected to the lower clamping plate 4.

[0023] like Figure 1 , Figure 2 , Figure 3 As shown, multiple friction grooves 5 are provided, and the multiple friction grooves 5 are evenly distributed on the upper clamping plate 3. Multiple friction grooves 6 are provided, and the multiple friction grooves 6 are evenly distributed on the lower clamping plate 4. By setting the friction grooves 5 and friction grooves 6, the friction effect on the surfaces of the upper clamping plate 3 and the lower clamping plate 4 can be improved.

[0024] like Figure 1 , Figure 2 , Figure 3 , Figure 5 As shown, a fixing plate 9 is fixedly connected to the left end of the upper clamping plate 3. A bolt 10 is movably connected to the inner wall of the fixing plate 9. A pressure plate 11 is movably connected to the outer side of the bolt 10. The pressure plate 11 is slidably connected to the upper clamping plate 3. A washer 12 is in contact with the upper end of the fixing plate 9. The washer 12 is movably connected to the bolt 10. A nut 13 is threadedly connected to the outer side of the bolt 10. The nut 13 is in contact with the washer 12. A friction groove 15 is provided at the lower end of the fixing plate 9. Through the action of the bolt 10, nut 13 and other structures, the pressure plate 11 can clamp and fix the grounding wire.

[0025] like Figure 1 , Figure 2 , Figure 3 , Figure 5As shown, six friction blocks 14 arranged in a circular array are fixedly connected to the side of the gasket 12. Each friction block 14 is in contact with the fixed plate 9. The friction blocks 14 can improve the contact friction effect of the gasket 12. Multiple friction plates 16 are fixedly connected to the upper end of the pressure plate 11. The multiple friction plates 16 are evenly distributed on the pressure plate 11. The friction plates 16 can improve the friction effect of the pressure plate 11.

[0026] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the screw 1 and the lower clamping plate 4 are jointly provided with an anti-detachment mechanism 8. The anti-detachment mechanism 8 includes a socket 81. The end face of the screw 1 has a socket 81. Multiple sockets 81 are arranged in a ring array on the screw 1. The sockets 81 facilitate insertion with the plug 85. The front of the lower clamping plate 4 is fixedly connected to a fixing frame 82. The vertical part of the fixing frame 82 is slidably connected to a telescopic piece 83. The front of the telescopic piece 83 is fixedly connected to an end ball 84, which is made of rubber. The back of the telescopic piece 83 is fixedly connected to a plug 85. The plug 85 is slidably connected to the socket 81. The front of the plug 85 is fixedly connected to an elastic rope 86. The other end of the elastic rope 86 is fixedly connected to the vertical part of the fixing frame 82. Through the function of the socket 81, the plug 85 and other structures, the screw 1 can be inserted and limited, avoiding the vibration and deflection of the screw 1.

[0027] The specific implementation process of this utility model is as follows: By inserting the grounding wire between the fixing plate 9 and the pressure plate 11, the grounding wire comes into contact with the friction plate 16. Then, the pressure plate 11 is pushed upward, and the bolt 10 is moved, so that the bolt 10 slides along the inner wall of the fixing plate 9, thereby allowing the grounding wire to enter the friction groove 15. Then, the washer 12 is pushed through the screw 1, so that the washer 12 comes into contact with the fixing plate 9, and the friction block 14 comes into contact with the fixing plate 9. Then, the nut 13 is pushed to contact the surface of the bolt 10. Under the threaded connection, the nut 13 can be installed, thereby fixing the bolt 10, so that the pressure plate 11 cooperates with the fixing plate 9 to complete the fixing of the grounding wire.

[0028] By pulling the end ball 84 away from the fixed frame 82, the telescopic piece 83 slides along the vertical part of the fixed frame 82, and the insertion post 85 moves, causing the elastic rope 86 to deform and the insertion post 85 to disengage from the insertion hole 81. Then, the handle 2 is pushed to rotate, causing the screw 1 to rotate. Due to the threaded connection, the upper clamping plate 3 can be moved, and the guide post 7 can slide along the inner wall of the lower clamping plate 4, so that the upper clamping plate 3 contacts the weldment. With the action of the lower clamping plate 4, the grounding clamp can be kept in a stable clamping state. Finally, the end ball 84 is released, so that the elastic rope 86 returns to its original deformation, pushing the insertion post 85 to insert into the next insertion hole 81 on the surface of the screw 1, limiting the screw 1 and preventing the screw 1 from vibrating and deflecting stably.

[0029] This solution utilizes the screw 1, handle 2, guide post 7, and other structures to drive the upper clamping plate 3 to move. Combined with the lower clamping plate 4, it can fix the grounding wire to the weldment. The insertion hole 81, insertion post 85, and other structures can limit the insertion of the screw 1, preventing the upper clamping plate 3 from loosening due to vibration and deflection of the screw 1. The pressure plate 11, fixing plate 9, and other structures can clamp the grounding wire. The friction groove 15, friction plate 16, and other structures can improve the stability of the grounding wire. The bolt 10 and nut 13 can securely lock the pressure plate 11. Furthermore, the friction block 14 and washer 12 can improve the installation stability of the nut 13, ensuring stable grounding wire clamping.

[0030] It should be noted in advance that, in this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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 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 invention according to the specific circumstances.

[0031] The above descriptions are merely embodiments of the present invention, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. An electric welding machine anti-sparking ground clamp comprising a threaded rod, characterized in that: A handle is welded to the upper end of the screw. An upper clamping plate is threaded to the outer side of the screw. A lower clamping plate is fixedly sleeved on the outer side of the screw and below the upper clamping plate. A friction groove is formed at the lower end of the upper clamping plate, and a friction groove is formed at the upper end of the lower clamping plate. A guide post is fixedly connected to the lower left side of the upper clamping plate. The guide post is slidably connected to the lower clamping plate. An anti-detachment mechanism is provided on both the screw and the lower clamping plate.

2. The ground clamp for electric welders of claim 1, wherein: Multiple friction grooves are provided, and the multiple friction grooves are evenly distributed on the upper clamping plate. Multiple friction grooves are provided, and the multiple friction grooves are evenly distributed on the lower clamping plate.

3. The anti-sparking grounding clamp for welding machines according to claim 1, characterized in that: A fixing plate is fixedly connected to the left end of the upper clamping plate. A bolt is movably connected to the inner wall of the fixing plate. A pressure plate is movably connected to the outer side of the bolt. The pressure plate is slidably connected to the upper clamping plate. A washer is in contact with the upper end of the fixing plate. The washer is movably connected to the bolt. A nut is threadedly connected to the outer side of the bolt. The nut is in contact with the washer. A friction groove is provided at the lower end of the fixing plate.

4. The anti-sparking grounding clamp for welding machines according to claim 3, characterized in that: The side of the gasket is fixedly connected to six friction blocks arranged in a circular array, and each friction block is in contact with the fixed plate.

5. The anti-sparking grounding clamp for welding machines according to claim 3, characterized in that: Multiple friction plates are fixedly connected to the upper end of the pressure plate, and the multiple friction plates are evenly distributed on the pressure plate.

6. The anti-sparking grounding clamp for welding machines according to claim 1, characterized in that: The anti-detachment mechanism includes an insertion hole. The screw has an insertion hole on its end face. A fixing frame is fixedly connected to the front of the lower clamping plate. A telescopic piece is slidably connected to the vertical part of the fixing frame. An end ball made of rubber is fixedly connected to the front of the telescopic piece. A plug is fixedly connected to the back of the telescopic piece. The plug is slidably connected to the insertion hole. An elastic rope is fixedly connected to the front of the plug. The other end of the elastic rope is fixedly connected to the vertical part of the fixing frame.

7. The anti-sparking grounding clamp for welding machines according to claim 6, characterized in that: The socket is provided in multiple ways, and the multiple sockets are arranged in a ring array on the screw.

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