Welding gun head mechanism for numerical control stud automatic welding equipment

Abstract

The utility model discloses a welding gun head mechanism for numerical control stud automatic welding equipment. The welding gun head mechanism comprises a fixed seat, a guide shaft sleeve, a first driving piece, a gun head and an elastic piece, a sliding hole is formed in the fixed seat; the guide shaft sleeve is arranged in the sliding hole in a penetrating mode and can slide relative to the fixing base, and a limiting piece is arranged at the end, close to the gun head, of the guide shaft sleeve. The gun head is arranged at the tail end of the guide shaft sleeve, an ejector pin is arranged in the gun head in a sliding mode, and the ejector pin is used for abutting against a stud; the first driving piece is arranged at the top of the guide shaft sleeve, and the driving end of the first driving piece extends into the shaft hole of the guide shaft sleeve and abuts against the ejector pin; the guide shaft sleeve is sleeved with the elastic piece, one end of the elastic piece abuts against the limiting piece, and the other end of the elastic piece abuts against the fixing base.

Description

Technical Field

[0001] The utility model relates to the technical field of welding, in particular to a welding gun head mechanism for numerical control stud automatic welding equipment. Background Art

[0002] Stud welding is a method of contacting one end of the stud with the surface of the plate (or pipe), energizing the arc, and applying a certain pressure to the stud after the contact surface melts to complete the welding. The cylindrical head welding nails for arc stud welding are suitable for high-rise steel structure buildings, industrial plant buildings, roads, railways, bridges, towers, automobiles, energy, transportation facilities, airports, stations, power stations, pipeline supports, lifting machinery and other steel structures.

[0003] In the prior art, there is a CNC machine tool for stud welding, and a welding gun is set on the machine tool to achieve automatic welding and improve production efficiency. However, the welding gun head mechanism of the existing CNC stud automatic welding equipment has the following defects:

[0004] 1. The welding gun head mechanism of the CNC stud automatic welding equipment cannot hold the stud tightly against the plate during welding, which affects the welding quality;

[0005] 2. The welding gun head mechanism of CNC stud automatic welding equipment is easy to cause impact on the plate when it contacts with the plate, which is not conducive to improving the welding quality and will affect the service life of the welding gun. Utility Model Content

[0006] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a welding gun head mechanism for a CNC stud automatic welding device to solve the technical problem in the prior art that the welding gun head mechanism for a CNC stud automatic welding device easily causes impact on the plate.

[0007] The utility model is implemented by the following technical scheme: a welding gun head mechanism for CNC stud automatic welding equipment, comprising a fixing seat, a guide sleeve, a first driving member, a gun head and an elastic member;

[0008] The fixing seat is provided with a sliding hole;

[0009] The guide sleeve is inserted into the slide hole and can be slidably arranged relative to the fixing seat. A stopper is provided at one end of the guide sleeve close to the gun head.

[0010] The gun head is arranged at the end of the guide sleeve, and a ejector pin is slidably arranged in the gun head, and the ejector pin is used to abut against the stud;

[0011] The first driving member is arranged on the top of the guide sleeve, and the driving end of the first driving member extends into the shaft hole of the guide sleeve and contacts the ejector pin;

[0012] The elastic member is sleeved on the guide shaft sleeve, one end of the elastic member abuts against the limiting member, and the other end of the elastic member abuts against the fixing seat.

[0013] In a possible implementation manner, the guide sleeve includes a connected fixing plate and a guide sleeve, the fixing plate is arranged on the top of the fixing seat, and the guide sleeve can be slidably arranged in the sliding hole.

[0014] In a possible implementation manner, a limiting column is provided on the fixing plate, a limiting hole is provided on the fixing seat, and the limiting column is inserted into the limiting hole.

[0015] In a possible implementation manner, a locking piece is provided on the guide sleeve, and the limiting piece is arranged on an end surface of the locking piece.

[0016] In a possible implementation manner, at least a partial area of ​​the limiting member extends into the sliding hole.

[0017] In a possible implementation manner, the gun head includes a conversion block and a welding nozzle, the top end of the conversion block is connected to the guide sleeve, and the bottom end of the conversion block is connected to the welding nozzle;

[0018] The conversion block is provided with a first hole and a second hole, the second hole is connected to the first hole, and the ejector pin is slidably disposed in the first hole;

[0019] A third hole is provided in the welding nozzle, the third hole is communicated with the first hole, and the ejector pin can extend into the third hole.

[0020] In a possible implementation manner, a connecting piece is provided on the conversion block, and the connecting piece is arranged at the opening of the first hole. The top end of the welding nozzle extends into the first hole, and the top end of the welding nozzle is connected to the connecting piece.

[0021] In a possible embodiment, the gun head further includes a guide tube, which is disposed at the top end of the conversion block and is connected to the second hole. The guide tube is used to guide the stud so that the bolt can slide smoothly into the third hole.

[0022] In a possible implementation manner, a jacket is provided in the second hole, the outer side surface of the jacket abuts against the inner side surface of the second hole, and the inner side surface of the jacket abuts against the outer side surface of the guide tube.

[0023] In a possible implementation manner, a second driving member is further included, and the second driving member is disposed on a CNC machine tool, and the fixing seat is connected to a driving end of the second driving member.

[0024] Compared with the prior art, the beneficial effect of the utility model lies in that: by arranging an elastic part on the guide sleeve, when the welding gun head mechanism of the CNC stud automatic welding equipment contacts the plate, the gun head and the guide sleeve move upward, and the elastic part plays a buffering role on the guide sleeve, which not only avoids the gun head from squeezing the plate, but also makes the gun head and the plate in close contact, and the ejector pin contacts the bolt under the action of the first driving part, so that the bolt and the plate are in close contact, which is beneficial to improving the welding quality of the bolt. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of a welding gun head mechanism for a CNC stud automatic welding device of the utility model;

[0026] Figure 2 It is a cross-sectional view of a welding gun head mechanism for a CNC stud automatic welding device of the utility model;

[0027] Figure 3 It is an exploded schematic diagram of a welding gun head mechanism for a CNC stud automatic welding device of the utility model;

[0028] Figure 4 It is an exploded schematic diagram of a welding gun head in a welding gun head mechanism for a CNC stud automatic welding device of the utility model.

[0029] In the figure:

[0030] 1. Fixed seat; 11. Sliding hole; 12. Limiting hole; 13. Fixed sleeve;

[0031] 2. Guide sleeve; 21. Fixing plate; 22. Guide sleeve; 23. Limiting column;

[0032] 3. A first driving member;

[0033] 4. Gun head; 41. Ejector pin; 42. Conversion block; 43. Welding nozzle; 44. First hole; 45. Second hole; 46. Third hole; 47. Connector; 48. Guide tube; 49. Jacket;

[0034] 5. Elastic parts;

[0035] 6. Limiting parts;

[0036] 7. Locking parts;

[0037] 8. A second driving member. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0039] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0040] In addition, the descriptions of "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0041] like Figure 1-4The welding gun head mechanism for a CNC stud automatic welding equipment shown in the figure includes a fixed seat 1, a guide sleeve 2, a first driving member 3, a gun head 4 and an elastic member 5; a sliding hole 11 is provided on the fixed seat 1; the guide sleeve 2 is inserted into the sliding hole 11, and the guide sleeve 2 is slidably arranged relative to the fixed seat 1, and a limiter 6 is provided at one end of the guide sleeve 2 close to the gun head 4; the gun head 4 is arranged at the end of the guide sleeve 2, and a thimble 41 is slidably arranged in the gun head 4, and the thimble 41 is used to abut the stud; the first driving member 3 is arranged at the top of the guide sleeve 2, and the driving end of the first driving member 3 extends into the axial hole of the guide sleeve 2 and abuts against the thimble 41; the elastic member 5 is sleeved on the guide sleeve 2, one end of the elastic member 5 abuts against the limiter 6, and the other end of the elastic member 5 abuts against the fixed seat 1. It should be added that a fixed sleeve 13 is also provided in the fixed seat 1, and the fixed sleeve 13 is arranged in the sliding hole 11, and the outer wall surface of the fixed sleeve 13 conflicts with the inner wall surface of the sliding hole 11, and the upper part of the inner wall surface of the fixed sleeve 13 conflicts with the guide sleeve 2. A through hole is provided on the side wall of the fixed seat 1, and a groove is provided on the outer wall surface of the fixed sleeve 13. By using a fastening screw to sequentially extend into the through hole and the groove, the fixed sleeve 13 is installed on the fixed seat 1. The setting of the fixed sleeve 13 can protect, guide and fix the guide sleeve 2, avoid friction between the guide sleeve 2 and the fixed seat 1, and is beneficial to improve the service life of the guide sleeve 2; specifically, the elastic member 5 is a spring, and the elastic member 5 is arranged in the fixed sleeve 13. One end of the elastic member 5 conflicts with the limit member 6, and the other end of the elastic member 5 conflicts with the fixed sleeve 13. The first driving member 3 is a cylinder, and the push rod of the cylinder extends into the guide sleeve 2 and conflicts with the ejector pin 41.

[0042] Please refer to Figure 2 and Figure 3 In a possible embodiment, the guide sleeve 2 includes a connected fixing plate 21 and a guide sleeve 22, the fixing plate 21 is arranged on the top of the fixing seat 1, and the guide sleeve 22 can be slidably arranged in the sliding hole 11. It should be noted that the fixing plate 21 is a rectangular body with a circular hole in the center, and the guide sleeve 22 is cylindrical. The guide sleeve 22 extends into the circular hole in the center of the fixing plate 21. A through hole is provided on the side wall of the fixing plate 21, and a groove is provided on the outer wall surface of the guide sleeve 22. By using a fastening screw to extend into the through hole and the groove in turn, the guide sleeve 22 is installed on the fixing plate 21, and the first driving member 3 is arranged on the fixing plate 21. The push rod of the first driving member 3 extends into the guide sleeve 22 and contacts the ejector pin 41.

[0043] Please refer to Figure 2 and Figure 3In a possible implementation, a limiting column 23 is provided on the fixing plate 21, a limiting hole 12 is provided on the fixing seat 1, and the limiting column 23 is inserted into the limiting hole 12. It is easy to understand that the setting of the limiting column 23 can prevent the guide sleeve 2 from rotating. At the same time, the setting of the limiting column 23 and the limiting hole 12 can also play a positioning role, which can not only improve the structural stability of the bolt welding gun, but also improve the installation efficiency and accuracy of the guide sleeve 2.

[0044] Please refer to Figure 2 and Figure 3 In a possible implementation, a locking member 7 is provided on the guide sleeve 2, and a limiting member 6 is provided on the end surface of the locking member 7. It should be noted that the limiting member 6 is sleeved on the guide sleeve 22, and the limiting member 6 is slidably provided relative to the guide sleeve 22. The setting of the locking member 7 is used to provide an installation basis for the limiting member 6 and to limit the limiting member 6 to prevent the limiting member 6 from sliding out of the guide sleeve 22. Specifically, the locking member 7 is a locking nut, which is sleeved on the guide sleeve 22 and locks the locking nut in a preset position. When the position of the limiting member 6 needs to be moved, it is only necessary to adjust the position of the locking member 7.

[0045] Please refer to Figure 2 In a possible implementation, at least a portion of the stopper 6 extends into the slide hole 11. It is easy to understand that the stopper 6 extends into the slide hole 11 so that the elastic member 5 is completely located in the slide hole 11, thereby preventing the elastic member 5 from being exposed to the outside, protecting the elastic member 5, and improving the service life of the elastic member 5.

[0046] Please refer to Figure 4 In a possible embodiment, the gun head 4 includes a conversion block 42 and a welding nozzle 43, the top end of the conversion block 42 is connected to the guide sleeve 2, and the bottom end of the conversion block 42 is connected to the welding nozzle 43; a first hole 44 and a second hole 45 are provided in the conversion block 42, the second hole 45 is connected to the first hole 44, and the ejector pin 41 can be slidably disposed in the first hole 44; a third hole 46 is provided in the welding nozzle 43, the third hole 46 is connected to the first hole 44, and the ejector pin 41 can extend into the third hole 46. It should be noted that the conversion block 42 is Y-shaped, the first hole 44 and the third hole 46 are vertically arranged, the second hole 45 is inclined, the first hole 44 is connected to the axial hole of the guide sleeve 22, and the ejector pin 41 is simultaneously in the first hole 44 and the axial hole of the guide sleeve 22. After the welding nozzle 43 is connected to the conversion block 42, the second hole 45 is simultaneously connected to the third hole 46, so that the bolt can slide smoothly from the second hole 45 into the third hole 46, and the opening at the top of the third hole 46 has an arc transition to allow the bolt to enter the third hole 46 more smoothly.

[0047] Please refer to Figure 4In a possible implementation, a connecting piece 47 is provided on the conversion block 42, and the connecting piece 47 is arranged at the opening of the first hole 44. The top end of the welding nozzle 43 extends into the first hole 44, and the top end of the welding nozzle 43 is connected to the connecting piece 47. It should be noted that the connecting piece 47 is a ferrule nut, and the welding nozzle 43 passes through the ferrule nut and is engaged with the ferrule nut, and then the ferrule nut is threadedly connected to the conversion block 42, thereby realizing the connection between the welding nozzle 43 and the conversion block 42.

[0048] Please refer to Figure 4 In a possible embodiment, the gun head 4 further includes a guide tube 48, which is disposed at the top of the conversion block 42 and communicated with the second hole 45. The guide tube 48 is used to guide the stud so that the bolt can slide smoothly into the third hole 46. It is easy to understand that the guide tube 48 is used to connect the bolt storage box, and the setting of the guide tube 48 can guide the bolt so that the bolt can smoothly enter the second hole 45 through the guide tube 48.

[0049] Please refer to Figure 4 In a possible implementation, a jacket 49 is provided in the second hole 45, the outer side of the jacket 49 abuts against the inner side of the second hole 45, and the inner side of the jacket 49 abuts against the outer side of the guide tube 48. It should be noted that the jacket 49 is provided at the opening at the top of the second hole 45, the jacket 49 is fixed to the conversion block 42 by a fastening screw, and the guide tube 48 is provided on the conversion block 42 through the jacket 49.

[0050] Please refer to Figure 1 In a possible implementation, it further includes a second driving member 8, which is disposed on the CNC machine tool, and the fixed seat 1 is connected to the driving end of the second driving member 8. It is easy to understand that the welding gun head mechanism of the CNC stud automatic welding equipment is movably disposed on the machine tool, the second driving member 8 is disposed on the machine tool, and the fixed seat 1 is disposed on the second driving member 8, and the welding gun moves under the drive of the second driving member 8.

[0051] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A welding gun head mechanism for CNC stud automatic welding equipment, characterized in that: It includes a fixing seat, a guide sleeve, a first driving member, a gun head and an elastic member; The fixing seat is provided with a sliding hole; The guide sleeve is inserted into the slide hole and can be slidably arranged relative to the fixing seat. A stopper is provided at one end of the guide sleeve close to the gun head. The gun head is arranged at the end of the guide sleeve, and a ejector pin is slidably arranged in the gun head, and the ejector pin is used to abut against the stud; The first driving member is arranged on the top of the guide sleeve, and the driving end of the first driving member extends into the shaft hole of the guide sleeve and contacts the ejector pin; The elastic member is sleeved on the guide shaft sleeve, one end of the elastic member abuts against the limiting member, and the other end of the elastic member abuts against the fixing seat.

2. The welding gun head mechanism for CNC stud automatic welding equipment according to claim 1, characterized in that: The guide sleeve comprises a connected fixing plate and a guide sleeve, the fixing plate is arranged on the top of the fixing seat, and the guide sleeve can be slidably arranged in the sliding hole.

3. The welding gun head mechanism for CNC stud automatic welding equipment according to claim 2, characterized in that: The fixing plate is provided with a limiting column, the fixing seat is provided with a limiting hole, and the limiting column is inserted into the limiting hole.

4. The welding gun head mechanism for CNC stud automatic welding equipment according to claim 1, characterized in that: The guide shaft sleeve is provided with a locking piece, and the limiting piece is arranged on the end surface of the locking piece.

5. The welding gun head mechanism for CNC stud automatic welding equipment according to claim 1, characterized in that: At least a partial area of ​​the limiting member extends into the sliding hole.

6. The welding gun head mechanism for CNC stud automatic welding equipment according to claim 1, characterized in that: The gun head comprises a conversion block and a welding nozzle, the top end of the conversion block is connected to the guide sleeve, and the bottom end of the conversion block is connected to the welding nozzle; The conversion block is provided with a first hole and a second hole, the second hole is connected to the first hole, and the ejector pin is slidably disposed in the first hole; A third hole is provided in the welding nozzle, the third hole is communicated with the first hole, and the ejector pin can extend into the third hole.

7. The welding gun head mechanism for the CNC stud automatic welding equipment according to claim 6, characterized in that: The conversion block is provided with a connecting piece, and the connecting piece is arranged at the opening of the first hole. The top end of the welding nozzle extends into the first hole, and the top end of the welding nozzle is connected to the connecting piece.

8. The welding gun head mechanism for CNC stud automatic welding equipment according to claim 6, characterized in that: The gun head also includes a guide tube, which is arranged at the top end of the conversion block and is connected to the second hole. The guide tube is used to guide the stud so that the bolt can slide smoothly into the third hole.

9. The welding gun head mechanism for CNC stud automatic welding equipment according to claim 8, characterized in that: A jacket is provided in the second hole, the outer side surface of the jacket abuts against the inner side surface of the second hole, and the inner side surface of the jacket abuts against the outer side surface of the guide tube.

10. The welding gun head mechanism for CNC stud automatic welding equipment according to claim 1, characterized in that: It also includes a second driving member, which is arranged on the CNC machine tool, and the fixing seat is connected to the driving end of the second driving member.

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