A welding gun head device for a sign robot

Abstract

The present invention provides a welding gun head device for a sign robot, and relates to the technical field of robot sign welding. The welding gun head device for the sign robot comprises a clamping copper tube, one end of the clamping copper tube clamps a welding nail, the outer wall of the clamping copper tube close to the welding nail is installed with a fastening steel hoop corresponding to the welding nail, the end of the clamping copper tube away from the welding nail is installed with a hollow threaded fixing rod, the end of the hollow threaded fixing rod away from the clamping copper tube is fixedly connected with a fixing nut, the center of the clamping copper tube is installed with an iron threaded top rod at the end away from the welding nail, and the outer wall of the iron threaded top rod close to the fixing nut is sleeved with a hollow strong magnetic sleeve. By utilizing a strong magnetic field to enhance the suction force of the welding gun head on the welding nail, the success rate of the welding gun head picking up the welding nail is improved, and the probability of the welding nail falling during the movement of the welding gun head is reduced. In addition, the device has the advantages of simple structure, stable nail removal, strong operability, etc., and is worthy of vigorous promotion.

Description

Technical Field

[0001] The invention relates to the technical field of robot sign welding, in particular to a sign robot welding gun head device. Background Art

[0002] The label robot is mainly used in the label welding process of various types of steel. When the steel stops at the welding label position, the label robot completes the label welding through the process of removing nails, removing labels, and welding. The nail removal process requires the robot to pull the welding gun head to the welding nail storage position, and press the welding gun head onto the welding nail by moving the welding gun head from top to bottom to pick up the welding nail. The existing welding gun head devices all use the deformation clamping force of the copper tube of the welding gun head and the deformation clamping force of the steel hoop to realize the picking up of the welding nail by the welding gun head. After the welding gun head moves above the welding nail, the robot pulls the welding gun head from the upper end of the welding nail to move downward. When the opening of the welding gun head accurately contacts the welding nail, the copper tube and the steel hoop expand outward, the welding gun head continues to descend, and the welding nail enters through the opening of the welding gun head. When it enters a certain depth, the welding gun head completely clamps the welding nail, then the robot can pull the welding nail away, and then go to the label removal position to absorb the label, and then go to the welding position, and use the welding nail to weld the label to the end face of the steel.

[0003] In the above-mentioned label robot welding process, the welding gun head picks up and moves the welding nails mainly through the deformation clamping force of the copper tube and the deformation clamping force of the steel hoop. After multiple pick-ups or welding collisions, the opening of the copper tube becomes larger and the opening of the steel hoop expands, which will cause the deformation clamping force to decrease. When the opening is larger than the diameter of the welding nail, the welding nail cannot be picked up. In addition, during the entire label welding process, the robot will pull the welding gun head to move between multiple positions such as the safe position, nail removal position, card removal position, waiting position, and welding position. The welding gun head will flip at various angles. When the welding nail is in a downward state, if the clamping force is insufficient, it will often cause the welding nail to fall, resulting in the failure of the label welding process. For this reason, we have developed a new type of label robot welding gun head device. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the present invention provides a label robot welding gun head device, which solves the problem that the welding gun head picks up and moves the welding nails mainly through the deformation clamping force of the copper tube and the deformation clamping force of the steel hoop. After multiple pick-ups or welding collisions, the opening of the copper tube becomes larger and the opening of the steel hoop expands, which will cause the deformation clamping force to decrease. When the opening is larger than the diameter of the welding nail, the welding nail cannot be picked up. In addition, during the entire label welding process, the robot will pull the welding gun head to move between multiple positions such as the safe position, nail removal position, card removal position, waiting position, and welding position. The welding gun head will flip at various angles. When the welding nail is in a downward state, if the clamping force is insufficient, it will often cause the welding nail to fall off, thereby causing the welding process to fail.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a welding gun head device for a sign robot, comprising a clamping copper tube, one end of the clamping copper tube clamping a welding nail, an outer wall of the clamping copper tube close to the welding nail is equipped with a fastening steel hoop corresponding to the welding nail, an end of the clamping copper tube away from the welding nail is equipped with a hollow threaded fixing rod, an end of the hollow threaded fixing rod away from the clamping copper tube is fixedly connected with a fixing nut, an end of the center of the clamping copper tube away from the welding nail is equipped with an iron threaded push rod, the outer wall of the iron threaded push rod close to the fixing nut is sleeved with a hollow strong magnetic sleeve, and an end of the iron threaded push rod away from the clamping copper tube is fixedly connected with a push rod fixing head.

[0008] Preferably, the outer wall of the clamping copper tube close to one end of the welding nail is provided with a plurality of notches corresponding to the fastening steel hoop.

[0009] Preferably, the top, bottom, and front and rear ends of the outer wall of one end of the clamping copper tube close to the welding nail are all provided with gaps corresponding to the welding nail.

[0010] Preferably, the clamping copper tube is arranged in a hollow structure, and one end of the welding nail passes through one end of the clamping copper tube and extends toward the center thereof.

[0011] Preferably, an inner wall of the clamping copper tube away from one end of the welding nail is provided with an internal thread corresponding to the hollow threaded fixing rod, and the hollow threaded fixing rod is fixedly connected to the clamping copper tube by screwing.

[0012] Preferably, the hollow threaded fixing rod and the fixing nut are of an integrated structural design.

[0013] Preferably, the inner wall of the hollow threaded fixing rod is provided with an internal thread corresponding to the iron threaded top rod, and one end of the iron threaded top rod passes through the hollow threaded fixing rod and extends toward the center of the clamping copper tube.

[0014] Preferably, a fastening nut is screwed on a side of the hollow strong magnetic sleeve away from the fixing nut.

[0015] Working principle: When assembling and using the sign robot welding gun head device, the fastening steel hoop 2 can be clamped on the front end concave ring of the clamping copper tube 3, and the hollow threaded fixing rod 4 can be tightened on the internal thread of the rear part of the clamping copper tube 3. The iron threaded push rod 8 is passed through the fastening nut 7, the hollow strong magnetic sleeve 6, the hollow threaded fixing rod 4 and its fixing nut 5 in sequence, and enters the clamping copper tube 3. The position of the iron threaded push rod 8 in the clamping copper tube 3 can be adjusted through the threads inside the hollow threaded fixing rod 4 and the fixing nut 5. When the front end of the iron threaded push rod 8 is rotated to a suitable position, the fastening nut 7 is tightened to fix the iron threaded push rod 8 and the entire welding gun together. A flat-blade screwdriver can be used to rotate the empty groove on the push rod fixing head 9 to increase the tightening degree. The head of the clamping copper tube 3 can clamp the welding nail 1, and then it can be passed through The fastening sleeve fixes the device to the robot welding nameplate fixture and connects the welding cable of the welding machine. After the iron threaded push rod 8 passes through the hollow strong magnetic sleeve 6, it is fixed by two sets of fastening screws. The strong magnetic force will magnetize the iron threaded push rod 8. When the welding nail 1 is clamped by the clamping copper tube 3, the iron threaded push rod 8 is in contact with the welding nail 1, and the welding nail 1 will be adsorbed by the magnetic force. When the strong magnetic force and the clamping force of the clamping copper tube 3 act on the welding nail 1 together, the welding nail 1 will not shift or fall off during the process of picking up, moving and welding. When the welding gun head touches the end face of the steel with the welding nail 1, the welding machine emits a welding current, and the welding nail 1 can fix the nameplate to the steel. After welding is completed, the welding gun head leaves the steel under the traction of the robot. At this time, since the clamping force and adsorption force of the welding nail 1 are less than the welding force between the welding nail 1 and the steel, the welding nail 1 and the nameplate remain on the steel together.

[0016] (III) Beneficial effects

[0017] The present invention provides a welding gun head device for a sign robot. It has the following beneficial effects:

[0018] 1. The welding gun head device of the sign robot realizes the device of picking up welding nails by the welding gun head of the robot by utilizing the strong magnetic field and the deformation force of the object, which can well complete the function of the robot clamping welding nails. When the strong magnetic force and the clamping force of the copper tube act on the welding nails together, the welding nails will not shift or fall during the process of picking up, moving and welding. Moreover, its overall structure is simple and stable, with high reliability. It can be extended to the sign robot system and has good promotion and application value.

[0019] 2. The welding gun head device of the sign robot utilizes a strong magnetic field to enhance the suction of the welding gun head to the welding nails, thereby improving the success rate of the welding gun head picking up the welding nails and reducing the probability of the welding nails falling during the movement of the welding gun head. The reliability of the welding gun head clamping the welding nails is greatly improved. In addition, the device has the advantages of simple structure, stable nail removal, and strong operability. It can quickly improve the operating stability of the equipment and extend the service life of the welding gun head without affecting the use of the welding gun head, and is worthy of vigorous promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 It is a schematic diagram of the explosion structure of the present invention;

[0022] Figure 3 It is a cross-sectional structural diagram of the hollow threaded fixing rod of the present invention.

[0023] Among them, 1. welding nails; 2. fastening steel hoop; 3. clamping copper tube; 4. hollow threaded fixing rod; 5. fixing nut; 6. hollow strong magnetic sleeve; 7. fastening nut; 8. iron threaded push rod; 9. push rod fixing head. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Example:

[0026] like Figure 1 As shown in Figure 3, an embodiment of the present invention provides a welding gun head device for a sign robot, including a clamping copper tube 3, one end of the clamping copper tube 3 clamps a welding nail 1, an outer wall of the clamping copper tube 3 close to the welding nail 1 is installed with a fastening steel hoop 2 corresponding to the welding nail 1, an end of the clamping copper tube 3 away from the welding nail 1 is installed with a hollow threaded fixing rod 4, the hollow threaded fixing rod 4 is fixedly connected with a fixing nut 5 at the end away from the clamping copper tube 3, an iron threaded push rod 8 is installed at the end of the center of the clamping copper tube 3 away from the welding nail 1, and a hollow strong magnetic sleeve 6 is sleeved on the outer wall of the iron threaded push rod 8 close to the fixing nut 5. The hollow strong magnetic sleeve 6 can provide a strong magnetic field for the welding gun head and increase the attraction to the welding nail 1. The end of the iron threaded push rod 8 away from the clamping copper tube 3 is fixedly connected with a push rod fixing head 9. The iron threaded push rod 8 and the push rod fixing head 9 are an integrated component, which can limit the depth of the welding nail 1 in the clamping copper tube 3 and transmit strong magnetic force to attract the iron welding nail 1.

[0027] The outer wall of the clamping copper tube 3 near one end of the welding nail 1 is provided with multiple slots corresponding to the fastening steel hoop 2. The number of slots is four, and the multiple slots are evenly distributed on the outer wall of one end of the clamping copper tube 3. The fastening steel hoop 2 is an open circular steel hoop, which can assist the clamping copper tube 3 in providing a firm clamping force for the welding nail 1.

[0028] The top, bottom, front and back ends of the outer wall of the clamping copper tube 3 near one end of the welding nail 1 are all provided with gaps corresponding to the welding nail 1. The front end side of the clamping copper tube 3 is opened in four directions of up, down, left and right. The inside is hollow, which can realize the functions of clamping the welding nail 1, conducting welding current, and assembling the welding nail 1 and the iron threaded push rod 8.

[0029] The clamping copper tube 3 is arranged in a hollow structure, and one end of the welding nail 1 passes through one end of the clamping copper tube 3 and extends toward the center thereof. The clamping copper tube 3 arranged in a hollow structure facilitates the assembly and clamping of the welding nail 1 .

[0030] An inner wall of the clamping copper tube 3 away from the end of the welding nail 1 is provided with an internal thread corresponding to the hollow threaded fixing rod 4, and the hollow threaded fixing rod 4 is fixedly connected to the clamping copper tube 3 by threaded engagement. The hollow threaded fixing rod 4 is fixedly connected to the clamping copper tube 3 by threaded engagement, making it easy to assemble and fix quickly.

[0031] The hollow threaded fixing rod 4 and the fixing nut 5 are designed as an integrated structure. The hollow threaded fixing rod 4 and the fixing nut 5 are designed as an integrated structure. The hollow threaded fixing rod 4 can be fastened to the clamping copper tube 3 through the fixing nut 5.

[0032] The inner wall of the hollow threaded fixing rod 4 is provided with an internal thread corresponding to the iron threaded push rod 8, and one end of the iron threaded push rod 8 passes through the hollow threaded fixing rod 4 and extends toward the center of the clamping copper tube 3. The hollow structure with the internal thread is suitable for the iron threaded push rod 8 to pass through the hollow threaded fixing rod 4, and it is also convenient to fix the iron threaded push rod 8.

[0033] A tightening nut 7 is screwed on one side of the hollow strong magnetic sleeve 6 away from the fixing nut 5 . The tightening nut 7 can limit the insertion depth of the iron threaded push rod 8 and can also stabilize the hollow strong magnetic sleeve 6 on the iron threaded push rod 8 .

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding gun head device for a sign robot, comprising a clamping copper tube (3), characterized in that: One end of the clamping copper tube (3) is clamped with a welding nail (1); a fastening steel hoop (2) corresponding to the welding nail (1) is installed on the outer wall of the clamping copper tube (3) at one end close to the welding nail (1); a hollow threaded fixing rod (4) is installed on the end of the clamping copper tube (3) away from the welding nail (1); the end of the hollow threaded fixing rod (4) away from the clamping copper tube (3) is fixedly connected to a fixing nut (5); an iron threaded push rod (8) is installed at the end of the center of the clamping copper tube (3) away from the welding nail (1); a hollow strong magnetic sleeve (6) is sleeved on the outer wall of the iron threaded push rod (8) on the side close to the fixing nut (5); and the end of the iron threaded push rod (8) away from the clamping copper tube (3) is fixedly connected to a push rod fixing head (9); An inner wall of the clamping copper tube (3) at one end away from the welding nail (1) is provided with an internal thread corresponding to the hollow threaded fixing rod (4), and the hollow threaded fixing rod (4) is fixedly connected to the clamping copper tube (3) by screwing the thread; The hollow threaded fixing rod (4) and the fixing nut (5) are of an integrated structural design; The inner wall of the hollow threaded fixing rod (4) is provided with an internal thread corresponding to the iron threaded top rod (8), and one end of the iron threaded top rod (8) penetrates the hollow threaded fixing rod (4) and extends toward the center of the clamping copper tube (3); A fastening nut (7) is screwed onto the side of the hollow strong magnetic sleeve (6) away from the fixing nut (5).

2. A sign robot welding gun head device according to claim 1, characterized in that: The outer wall of the clamping copper tube (3) close to one end of the welding nail (1) is provided with a plurality of notches corresponding to the fastening steel hoop (2).

3. A sign robot welding gun head device according to claim 1, characterized in that: The top, bottom and front and rear ends of the outer wall of the clamping copper tube (3) at one end close to the welding nail (1) are all provided with gaps corresponding to the welding nail (1).

4. A sign robot welding gun head device according to claim 1, characterized in that: The clamping copper tube (3) is arranged in a hollow structure, and one end of the welding nail (1) penetrates one end of the clamping copper tube (3) and extends towards the center thereof.

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