An anti-sticking welding needle guide rod device for self-spinning welding points of resistance welding machine

Abstract

The utility model discloses an anti-sticking welding needle guide rod device for self-spin separation welding points of a resistance welding machine, belonging to the technical field of resistance welding, comprising a guide rod guide sleeve, the guide sleeve is sleeved on the outer surface of the guide rod, a pressure spring sleeved on the outer surface of the guide rod is arranged in the guide sleeve, a rear limit protrusion is arranged on the inner wall of the guide sleeve, the rear end of the pressure spring abuts against the rear limit protrusion, a front limit protrusion is arranged on the outer surface of the guide rod, and the front end of the pressure spring abuts against the front limit protrusion; a rotation groove extending spirally along the extension direction of the guide sleeve is arranged on the inner wall of the guide sleeve, a guide rod guide pin matching the rotation groove is arranged on the surface of the guide rod, and the end of the guide rod guide pin extends into the rotation groove; the utility model can rotate the welding needle when the pressure between the welding needle and the workpiece is released after welding is completed in the resistance welding machine, so as to separate the welding needle from the workpiece, avoid adhesion of the welding needle to the workpiece, and improve welding efficiency and welding quality.

Description

Technical Field

[0001] The utility model relates to the technical field of resistance welding, in particular to an anti-sticking welding needle guide rod device for a resistance welding machine spin separation welding point. Background Art

[0002] Resistance welding refers to a method of using the resistance heat generated by the passage of electric current through the weldment and the contact point as a heat source to locally heat the weldment to a molten or plastic state, and at the same time pressurize it for welding. The principle is that when the current passes through the welding needle (the electrode at the end of the welding pen) and the contact surface and adjacent areas of the workpiece, a large amount of heat is generated due to the large resistance at the contact point, causing the metal to reach a molten or plastic state, and then the two metal workpieces are combined under pressure. Resistance welding has the advantages of high production efficiency, small weldment deformation, and low welding cost. It is widely used in automobile manufacturing, electronics manufacturing, household appliance manufacturing, machinery manufacturing, construction and other fields. At present, resistance welding is used to weld metal workpieces with low resistivity such as nickel alloys, pure aluminum, and pure copper. When welding, higher working current is required due to the low resistivity of these metals, and the alumina welding needle with higher resistivity will generate greater heat under the same current. These metals generate a large amount of heat during the welding process and the temperature of the welding needle tip will increase significantly. When the temperature reaches or even reaches or exceeds the melting point of the welding needle, the workpiece and the welding needle tip will fuse and form adhesion. In order to separate the adhered welding needle from the metal workpiece, the welding needle or the workpiece is usually shaken to separate the welding needle from the metal workpiece. However, this method will cause the contact surface between the welding needle and the metal workpiece to be subjected to undue tearing force, which may cause local deformation or cracks in the molten core weld and deformation or distortion of the metal workpiece, affecting the welding quality. Utility Model Content

[0003] In view of the technical defects existing in the background technology, the utility model proposes an anti-sticking welding needle guide rod device for spin separation welding points of a resistance welding machine, which solves the above technical problems and meets the actual needs. The specific technical solution is as follows:

[0004] An anti-sticking welding needle guide rod device for spin-separating welding points of a resistance welding machine, comprising a guide rod guide sleeve, the guide sleeve is sleeved on the outer surface of the guide rod, a pressure spring sleeved on the outer surface of the guide rod is arranged in the guide sleeve, a rear limit protrusion is arranged on the inner wall of the guide sleeve, the rear end of the pressure spring abuts against the rear limit protrusion, a front limit protrusion is arranged on the outer surface of the guide rod, and the front end of the pressure spring abuts against the front limit protrusion;

[0005] The inner wall of the guide sleeve is provided with a rotation groove which spirally extends along the extension direction of the guide sleeve, and the surface of the guide rod is provided with a guide rod guide pin which matches the rotation groove, and the end of the guide rod guide pin extends into the rotation groove.

[0006] As a further technical solution of the utility model, the outer surface of the guide rod is sleeved with an adjustment sleeve located in front of the guide sleeve, the inner wall of the adjustment sleeve and the outer surface of the guide rod are provided with matching threads, and the rear end of the adjustment sleeve extends into the guide sleeve and abuts against the front end of the pressure spring.

[0007] As a further technical solution of the utility model, the outer surface of the adjusting sleeve is provided with pressure scales and hand-tightening anti-slip grooves, and the pressure scales are evenly distributed along the extending direction of the adjusting sleeve.

[0008] As a further technical solution of the utility model, an induction ring is provided on the inner wall of the guide sleeve, and the induction ring is located between the rotating groove and the rear end edge of the guide sleeve. A welding trigger switch matching the induction ring is provided on the surface of the guide rod.

[0009] As a further technical solution of the utility model, the shape of the induction ring is a groove sunken into the inner wall of the guide sleeve, and the surface of the welding trigger switch is provided with a touch button matching the induction ring. The top of the touch button inside the welding trigger switch is elastically connected to the inner wall of the guide sleeve or the inner wall of the induction ring.

[0010] As a further technical solution of the utility model, two rotation grooves are provided, and both ends of the guide pin of the guide rod are located in the rotation grooves.

[0011] As a further technical solution of the utility model, the front end of the guide rod passes through the front end of the guide sleeve and extends forward, and a welding pin fixing hole is provided at the front end of the guide rod.

[0012] As a further technical solution of the utility model, the rear end of the guide rod passes through the rear end of the guide sleeve and extends backward. The rear end of the guide rod is provided with an electrical interface, and the surface of the guide rod is provided with a circuit groove extending from the electrical interface to the touch switch.

[0013] As a further technical solution of the utility model, a limiting ring is provided at the front end of the outer surface of the guide sleeve, an insulating sleeve is provided on the outer surface of the guide sleeve whose front end abuts against the limiting ring, and matching threads are provided on the inner wall of the insulating sleeve and the surface of the guide sleeve.

[0014] As a further technical solution of the utility model, a mounting mechanism is sleeved on the outer surface of the guide sleeve, and the inner wall of the mounting mechanism and the surface of the guide sleeve are provided with mutually matching threads.

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

[0016] The utility model is a structure for preventing the welding needle from adhering to the workpiece inside welding tools, welding guns, welding pens and other equipment based on a resistance welding machine. During the welding process, the welding pressure acts on the guide sleeve and is transmitted to the guide rod and the welding needle through a pressure spring, and then is applied to the surface of the workpiece and triggers the output current for welding. The welding pressure causes the guide sleeve to move downward relative to the guide rod, and the guide rod is rotated through the cooperation of the rotating groove and the guide pin of the guide rod. After the welding is completed, the guide sleeve moves upward relative to the guide rod, and the guide rod is rotated in the opposite direction due to the cooperation of the rotating groove and the guide pin of the guide rod during the resetting process of the pressure spring. The welding needle is rotated to generate a rotational separation with the opposite torque to the surface of the metal workpiece, thereby overcoming the adhesion of the welding needle to the metal workpiece and improving the welding efficiency and welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is a cross-sectional view of an anti-sticking welding needle guide rod device for spin-separating welding points of a resistance welding machine.

[0018] Figure 2 The present invention is a cross-sectional view of a guide sleeve of an anti-sticking welding needle guide rod device for spin-separating welding points of a resistance welding machine.

[0019] Figure 3 The present invention is a schematic diagram of adjusting welding pressure of an anti-sticking welding needle guide rod device of a resistance welding machine for self-spin separation of welding points.

[0020] Figure 4 The invention discloses a structural schematic diagram of an adjusting sleeve of an anti-sticking welding needle guide rod device for a spin-separated welding spot of a resistance welding machine.

[0021] Figure 5 yes Figure 1 Sectional view of AA.

[0022] Figure 6 yes Figure 5 A partial schematic diagram of point B in the middle.

[0023] Figure 7 The present invention is a schematic diagram of the welding state of an anti-sticking welding needle guide rod device for spin-separating welding points of a resistance welding machine.

[0024] Figure 8 yes Figure 7 Partial schematic diagram of point C in the middle.

[0025] Fig. 9 The present invention is a cross-sectional view of a second embodiment of an anti-sticking welding needle guide rod device for spin-separating welding points of a resistance welding machine.

[0026] Fig.10 The present invention is a cross-sectional view of a third embodiment of an anti-sticking welding needle guide rod device for spin-separating welding points of a resistance welding machine.

[0027] Fig.11The present invention is a schematic diagram of an anti-sticking welding needle guide rod device for spin-separating welding points of a resistance welding machine installed on a welding device.

[0028] Among them: guide rod 1, front limit protrusion 11, guide rod guide pin 12, welding trigger switch 13, touch button 131, welding pin fixing hole 14, electrical interface 15, line groove 16, guide sleeve 2, rear limit protrusion 21, rotating groove 22, induction ring 23, limit ring 24, pressure spring 3, adjustment sleeve 4, pressure scale 41, hand-tightening anti-slip groove 42, insulating sleeve 5, installation mechanism 6, welding equipment 7. DETAILED DESCRIPTION

[0029] The implementation methods of the present invention are described below in conjunction with the accompanying drawings and relevant embodiments. The implementation methods of the present invention are not limited to the following embodiments, and the present invention involves relevant necessary components in this technical field, which should be regarded as common knowledge in this technical field and can be known and mastered by technical personnel in this technical field.

[0030] like Figure 1 , 2 As shown, an anti-sticking welding needle guide rod device for spin-separating welding points of a resistance welding machine includes a guide rod 1 and a guide sleeve 2. It is defined that one end of the guide rod 1 for installing the welding needle is the front end, and the other end is the rear end. The guide sleeve 2 is sleeved on the outer surface of the guide rod 1. The front end of the guide rod 1 passes through the front end of the guide sleeve 2 and extends forward. The front end of the guide rod 1 is provided with a welding needle fixing hole 14. The guide rod 1 and the welding needle are electrically connected by interference fit to achieve a large current passing capacity. The guide sleeve 2 is provided with a sleeve on the guide rod. A pressure spring 3 is provided on the outer surface, and a rear limit protrusion 21 is provided on the inner wall of the guide sleeve 2. The rear end of the pressure spring 3 abuts against the rear limit protrusion 21. A front limit protrusion 11 is provided on the outer surface of the guide rod 1, and the front end of the pressure spring 3 abuts against the front limit protrusion 11; a rotation groove 22 spirally extending along the extension direction of the guide sleeve 2 is provided on the inner wall of the guide sleeve 2, and a guide rod guide pin 12 matching the rotation groove 22 is provided on the surface of the guide rod 1, and the guide rod guide pin 12 extends into the rotation groove 22.

[0031] The utility model is an internal structure of a welding gun, welding pen and other equipment based on resistance welding. The welding needle fixing hole 14 at the front end of the guide rod 1 is used to fix the welding needle that contacts the workpiece to be welded during the welding process. The guide rod device fixes one end of the welding needle vertically downward. The outer surface of the guide sleeve 2 is fixed with an insulating outer shell, or the guide rod device is fixed to the resistance welding machine through the guide sleeve 2. When the workpiece to be welded is welded, the bottom of the welding needle abuts against the surface of the workpiece to be welded, and the welding pressure acts vertically downward on the guide sleeve 2 to make the guide sleeve 2 move downward. Since the rear end of the pressure spring 3 abuts against the rear limit protrusion 21 and the front end of the pressure spring 3 abuts against the front limit protrusion 11, the pressure spring 3 will be compressed during the downward movement of the guide sleeve 2. The welding pressure is transmitted to the guide rod 1 and the welding needle through the pressure spring 3 and then applied to the surface of the workpiece to be welded. At the same time, the guide rod guide pin 12 on the surface of the guide rod 1 will be relative to the guide sleeve. 2 moves upward. Since the guide pin 12 of the guide rod is located in the rotating groove 22, the guide pin 12 of the guide rod will move along the extension direction of the rotating groove 22. Since the rotating groove 22 spirally extends along the extension direction of the guide sleeve 2, the guide rod 1 and the welding needle will rotate along their own axes. When the guide sleeve 2 moves downward to the set value, the current is turned on by the switch to make the current flow through the welding needle and the workpiece to be welded. The current causes the positions where the workpieces to be welded contact each other to generate a large amount of heat and melt. Under the action of the welding pressure, the workpieces to be welded are fused with each other. Then the welding pressure is removed and the current is disconnected. The guide sleeve 2 moves upward to reset through the external tension and the elastic force generated by the reset of the pressure spring 3. The guide pin 12 of the guide rod will move downward along the rotating groove 22 to make the guide rod 1 and the welding needle rotate in another direction along their own axes. After the pressure spring 3 and the guide sleeve 2 are reset, the first welding of the workpiece is completed.

[0032] It should be noted that when resistance welding is used to weld metal workpieces with high resistivity, such as aluminum alloy, stainless steel, and carbon steel, a higher working current is required due to the high resistivity of these metals, and metals with high resistivity will generate more heat under the same current. These metals generate a large amount of heat during the welding process, and the temperature of the contact surface between the welding needle and the metal workpiece will rise rapidly, and the temperature may exceed the melting point of the metal workpiece material, thereby causing the welding needle to stick to the surface of the metal workpiece. In the process of welding the metal workpiece based on resistance welding by the guide rod device of the utility model, the welding needle will rotate when applying welding pressure for welding and when resetting after welding. The welding needle avoids long-term static contact with the surface of the metal workpiece by rotating, thereby avoiding adhesion of the welding needle and the metal workpiece, improving the welding quality, and the welder does not need to perform additional operations to deal with the adhered welding needle and metal workpiece during the welding process, thereby improving the welding efficiency.

[0033] The utility model is a structure for preventing the welding needle from sticking to the workpiece inside a welding gun, a welding pen and other equipment based on resistance welding. During the welding process, the welding pressure acts on the guide sleeve 2 and is transmitted to the guide rod 1 and the welding needle through the pressure spring 3, and then is applied to the surface of the workpiece and the current is turned on for welding. The welding pressure causes the guide sleeve 2 to move downward relative to the guide rod 1, and the guide rod 1 is rotated through the cooperation of the rotating groove 22 and the guide rod guide pin 12. After the welding is completed, the guide sleeve 2 moves upward relative to the guide rod 1, and during the reset process, the rotating groove 22 and the guide rod guide pin 12 are cooperated to rotate the guide rod 1 in the other direction. The welding needle is prevented from being in static contact with the surface of the metal workpiece for a long time by rotating, thereby preventing the welding needle from sticking to the metal workpiece, thereby improving the welding efficiency and welding quality.

[0034] like Figure 1-4 As shown, as one of the preferred embodiments of the utility model, the outer surface of the guide rod 1 is sleeved with an adjusting sleeve 4 located in front of the guide sleeve 2, the inner wall of the adjusting sleeve 4 and the outer surface of the guide rod 1 are provided with matching threads, and the rear end of the adjusting sleeve 4 extends into the guide sleeve 2 and abuts against the front end of the pressure spring 3.

[0035] The pressure spring 3 of the utility model is preferably a progressive pressure spring, and the adjusting sleeve 4 can be moved toward the pressure spring 3 or away from the pressure spring 3 by rotating through the thread matching the guide rod 1. When the adjusting sleeve 4 moves toward the pressure spring 3, the pressure spring 3 will be compressed. As the pressure spring 3 is compressed, the pressure required to continue to compress the pressure spring 3 will be greater. When the resistance welding machine is welding, the welding pressure needs to make the guide sleeve 2 compress the pressure spring 3 and move a certain distance before the current can be turned on. The compression of the pressure spring 3 at the front end of the pressure spring 3 by the adjusting sleeve 4 increases the compression amount of the pressure spring 3 during welding, thereby increasing the welding pressure, and vice versa reducing the welding pressure, thereby playing a role in regulating the welding pressure; since the strength of each welding operator is different, the operator can adjust the welding pressure by rotating the guide sleeve 2, so that the welding pressure remains constant and best matches his own operating habits, thereby improving the welding efficiency. At the same time, some workpieces to be welded with different thicknesses need to be welded with different welding pressures, and adjusting the welding pressure to the optimal value of the workpiece to be welded can improve the welding quality.

[0036] like Figure 4 As shown, as one of the preferred embodiments of the utility model, the outer surface of the adjusting sleeve 4 is provided with a pressure scale 41 and a plurality of hand-tightening anti-slip grooves 42 , and the pressure scale 41 is evenly distributed along the extending direction of the adjusting sleeve 4 .

[0037] When the rotary adjusting sleeve 4 of the utility model adjusts the welding pressure, it will move relative to the guide sleeve 2. The greater the compression amount of the adjusting sleeve 4 on the pressure spring 3, the longer the length of the adjusting sleeve 4 extending to the inside of the guide sleeve 2, and the greater the welding pressure. The welding pressure values ​​can be marked on the pressure scale 41 in sequence, and the greater the distance from the front end of the guide sleeve 2, the greater the welding pressure value marked on the pressure scale 41. The current welding pressure can be known by observing the pressure scale 41 relative to the front end of the guide sleeve 2. The welder can rotate the adjusting sleeve 4 to quickly adjust the welding pressure each time using the resistance welding machine, and the hand-twisted anti-slip pattern 42 can increase the friction between the welder's fingers and the adjusting sleeve 4, making the adjusting sleeve 4 easier to rotate, thereby quickly adjusting the welding pressure and improving the welding efficiency of the workpiece.

[0038] like Figure 1 , 2 As shown in Figures 5, 6, 7 and 8, as one of the preferred embodiments of the utility model, an induction ring 23 is provided on the inner wall of the guide sleeve 2, and the induction ring 23 is located between the rotating groove 22 and the rear end edge of the guide sleeve 2, and a welding trigger switch 13 matching the induction ring 23 is provided on the surface of the guide rod 1.

[0039] The utility model causes the guide sleeve 2 to move downward relative to the guide rod 1 through welding pressure. During this process, the induction ring 23 will move toward the welding trigger switch 13. When the welding trigger switch 13 matches the position of the induction ring 23, it is in a welding state. At this time, the welding trigger switch 13 is connected to the welding current for welding. An optical sensor or a pressure sensor or other induction element can be arranged inside the welding trigger switch 13. The induction ring 23 is an optical mark or a physical structure such as a groove or a bump. When the welding trigger switch 13 moves to the position of the induction ring 23 or leaves the range of the induction ring 23, the induction element inside the welding trigger switch 13 will sense the optical mark or the induction probe connected to the induction element will contact the induction ring 23 to generate a pressure change. At this time, the induction element will generate an electrical signal and transmit it to the control system inside the welding trigger switch 13. The control system controls the welding trigger switch 13 to turn on or off the current, thereby realizing the control of the welding operation of the welding pen.

[0040] like Figure 1 , 2 As shown in Figures 5, 6, 7 and 8, as one of the preferred embodiments of the utility model, the shape of the induction ring 23 is a groove sunken into the inner wall of the guide sleeve 2, and the surface of the welding trigger switch 13 is provided with a touch button 131 matching the induction ring 23. The top of the touch button 131 inside the welding trigger switch 13 is elastically brought into contact with the inner wall of the guide sleeve 2 or the inner wall of the induction ring 23, thereby triggering the touch button 131 to realize the action of controlling the switch through the welding trigger switch 13.

[0041] The welding trigger switch 13 of the utility model is provided with an elastic structure and a pressure sensor that cooperate with the touch button 131. The touch button 131 will be squeezed into the welding trigger switch 13 when subjected to external pressure. When the guide rod device is in the reset state, the top of the touch button 131 abuts against the inner wall of the induction ring 23. When the welding pressure causes the guide sleeve 2 to move downward until the touch button 131 leaves the induction ring 23, and the top of the touch button 131 abuts against the guide sleeve 2 to be squeezed into the welding trigger switch 13, the pressure sensor will sense the pressure change. And generate an electrical signal to turn on the welding trigger switch 13, the current flows to the front end of the welding needle through the welding trigger switch to weld the workpieces, after the workpieces are fused to each other, the welding pressure is withdrawn to make the guide sleeve 2 move upward, the button 131 will re-enter the range of the induction ring 23 and its top will abut against the inner wall of the induction ring 23 under the action of the elastic structure, the welding trigger switch 13 will disconnect the current to stop the resistance welding machine from welding, the utility model uses the welding pressure to make the guide sleeve 2 move downward and trigger the welding trigger switch 13 to weld at the same time, so as to improve the welding efficiency.

[0042] like Figure 1 , 2 As shown, as one of the preferred embodiments of the utility model, two rotation grooves 22 are provided, and both ends of the guide pin 12 of the guide rod are located in the rotation grooves 22.

[0043] After the utility model is provided with two rotation grooves 22, when the guide sleeve 2 moves downward, the guide rod 1 can be rotated through the two rotation grooves 22 and the guide rod guide pin 12, so that the force applied to the guide rod 1 during rotation can be balanced, and the guide rod 1 is prevented from leaning to one side during the process, which causes friction between the guide rod 1 and the guide sleeve 2, thereby improving the smoothness of the welding process and making the welding pressure more accurate.

[0044] like Figure 5 , 7 As shown, as one of the preferred embodiments of the utility model, the rear end of the guide rod 1 passes through the rear end of the guide sleeve 2 and extends backward, an electrical interface 15 is provided at the rear end of the guide rod 1, and a line groove 16 extending from the electrical interface 15 to the welding trigger switch 13 is provided on the surface of the guide rod 1.

[0045] The electrical interface 15 of the utility model is used to connect with the power transmission line of the output current in the resistance welding machine. The electrical interface 15 can be fixed to the fixed port of the power transmission line by internally arranging threads. The power transmission line is buried in the line groove 16 and extends to be connected with the welding trigger switch 13, thereby improving the flatness of the surface of the welding gun or welding pen of the resistance welding machine.

[0046] like Fig. 9As shown, as the second preferred embodiment of the utility model, a limiting ring 24 is provided at the front end of the outer surface of the guide sleeve 2, an insulating sleeve 5 is provided on the outer surface of the guide sleeve 2 whose front end abuts against the limiting ring 24, and the inner wall of the insulating sleeve 5 and the surface of the guide sleeve 2 are provided with mutually matching threads.

[0047] The guide sleeve 2 of the utility model is fixed to the insulating sleeve 5 by mutually matching threads. The insulating sleeve 5 serves as the outer shell structure of the welding gun or welding pen of the resistance welding machine, so that the welder can hold the insulating sleeve 5 to perform welding operations. The front end of the insulating sleeve 5 abuts against the limiting ring 24. Since the welder applies downward welding pressure to the insulating sleeve 5 during welding to make the guide sleeve 2 move downward, the limiting ring 24 can enable the welding pressure to better act on the guide sleeve 2.

[0048] like Fig.10 , 11 As shown, as a third preferred embodiment of the utility model, a mounting mechanism 6 is sleeved on the outer surface of the flow guide sleeve 2, and the inner wall of the mounting mechanism 6 and the surface of the flow guide sleeve 2 are provided with mutually matching threads.

[0049] The mounting mechanism 6 of the utility model is fixed to the guide sleeve 2 by mutually matching threads. The surface of the guide sleeve 2 is provided with a plurality of threaded holes. These threaded holes enable the mounting mechanism 6 to be fixed to the welding arm of the welding device 7 by fixing bolts, thereby fixing the guide rod device to the welding device 7, so that the welding device 7 can cooperate with the guide rod device to weld the workpiece, thereby avoiding the welding needle and the workpiece from sticking during the welding process of the welding device 7.

[0050] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A guide rod device for preventing welding needles from sticking when a resistance welding machine spins and separates welding points, comprising a guide rod (1) and a guide sleeve (2), characterized in that: The guide sleeve (2) is sleeved on the outer surface of the guide rod (1), a pressure spring (3) sleeved on the outer surface of the guide rod (1) is arranged inside the guide sleeve (2), a rear limit protrusion (21) is arranged on the inner wall of the guide sleeve (2), the rear end of the pressure spring (3) abuts against the rear limit protrusion (21), the outer surface of the guide rod (1) is provided with a front limit protrusion (11), the front end of the pressure spring (3) abuts against the front limit protrusion (11); The inner wall of the guide sleeve (2) is provided with a rotation groove (22) extending spirally along the extension direction of the guide sleeve (2), and the surface of the guide rod (1) is provided with a guide rod guide pin (12) matching the rotation groove (22), and the end of the guide rod guide pin (12) extends into the rotation groove (22).

2. The anti-sticking welding needle guide rod device for the spin separation welding point of the resistance welding machine according to claim 1, characterized in that: The outer surface of the flow guide rod (1) is sleeved with an adjustment sleeve (4) located in front of the flow guide sleeve (2); the inner wall of the adjustment sleeve (4) and the outer surface of the flow guide rod (1) are provided with mutually matching threads; the rear end of the adjustment sleeve (4) extends into the flow guide sleeve (2) and abuts against the front end of the pressure spring (3).

3. The anti-sticking welding needle guide rod device for spin separation welding points of a resistance welding machine according to claim 2, characterized in that: The outer surface of the adjusting sleeve (4) is provided with a pressure scale (41) and a plurality of hand-tightening anti-slip grooves (42), and the pressure scale (41) is evenly distributed along the extension direction of the adjusting sleeve (4).

4. The anti-sticking welding needle guide rod device for spin separation welding points of a resistance welding machine according to claim 1, characterized in that: An induction ring (23) is provided on the inner wall of the guide sleeve (2), and the induction ring (23) is located between the rotation groove (22) and the rear end edge of the guide sleeve (2), and a welding trigger switch (13) matching the induction ring (23) is provided on the surface of the guide rod (1).

5. The anti-sticking welding needle guide rod device for spin separation welding points of a resistance welding machine according to claim 4, characterized in that: The induction ring (23) is in the shape of a groove sunken into the inner wall of the flow guide sleeve (2); a touch button (131) matching the induction ring (23) is provided on the surface of the welding trigger switch (13); and the top of the touch button (131) is in contact with the inner wall of the flow guide sleeve (2) or the inner wall of the induction ring (23) through elasticity inside the welding trigger switch (13).

6. The anti-sticking welding needle guide rod device for spin separation welding points of a resistance welding machine according to claim 1, characterized in that: The rotating grooves (22) are provided with two ends, and both ends of the guide pin (12) of the guide rod are located in the rotating grooves (22).

7. The anti-sticking welding needle guide rod device for the spin separation welding point of the resistance welding machine according to claim 1, characterized in that: The front end of the guide rod (1) penetrates the front end of the guide sleeve (2) and extends forwards, and a welding pin fixing hole (14) is provided at the front end of the guide rod (1).

8. The anti-sticking welding needle guide rod device for spin separation welding points of a resistance welding machine according to claim 1, characterized in that: The rear end of the guide rod (1) penetrates the rear end of the guide sleeve (2) and extends backwards, the rear end of the guide rod (1) is provided with an electrical interface (15), and the surface of the guide rod (1) is provided with a line groove (16) extending from the electrical interface (15) to the welding trigger switch (13).

9. The anti-sticking welding needle guide rod device for spin separation welding points of a resistance welding machine according to claim 1, characterized in that: A limiting ring (24) is provided at the front end of the outer surface of the guide sleeve (2), an insulating sleeve (5) is provided at the outer surface of the guide sleeve (2) whose front end abuts against the limiting ring (24), and matching threads are provided on the inner wall of the insulating sleeve (5) and the surface of the guide sleeve (2).

10. The anti-sticking welding needle guide rod device for the spin separation welding point of the resistance welding machine according to claim 1, characterized in that: The outer surface of the flow guide sleeve (2) is sleeved with a mounting mechanism (6), and the inner wall of the mounting mechanism (6) and the surface of the flow guide sleeve (2) are provided with mutually matching threads.

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