Intelligent self-adaptive device for workpiece height of stud welding device

Abstract

A workpiece height intelligent self-adaptive device for a stud welding device comprises a base and a welding gun body connected to the base; the welding gun body comprises a mounting bracket, a gun barrel, a gun core, a gun core position sensor and a second spring; the mounting bracket comprises a first vertical plate and a second vertical plate, and the gun barrel is fixedly arranged at the first end of the first vertical plate and the second vertical plate; the gun core is arranged inside the gun barrel, and a driving unit is arranged inside the gun barrel; a connecting protrusion is protrudingly arranged on the side wall of the second end of the gun core, and a grating unit is installed on the connecting protrusion; the gun core position sensor is fixedly arranged on the gun barrel; a second hook is arranged on the first vertical plate or the second vertical plate; the first end of the second spring is connected to the second hook, and the second end is connected to the connecting protrusion; the gun core position sensor is used to sense the grating unit. In this way, the height of the workpiece can be self-adaptive, and the melting depth can be accurately controlled.

Description

Technical Field

[0001] The invention relates to the technical field of stud welding, in particular to a workpiece height intelligent self-adapting device of a stud welding device. Background Art

[0002] The existing stud welding device cannot automatically adapt to the height of the workpiece in the z-axis. In particular, when the height difference between multiple workpieces is large, it is difficult for the stud welding equipment to adapt to the height of each workpiece. When the height difference between multiple workpieces is large, it is difficult for the stud welding equipment to accurately control the penetration depth of the stud welding based on the height of the workpiece. Summary of the invention

[0003] In view of this, the present invention provides a workpiece height intelligent self-adapting device for a stud welding device which can adapt to the height of the workpiece and facilitate accurate control of the penetration depth, so as to solve the above problems.

[0004] A workpiece height intelligent adaptive device for a stud welding device comprises a base and a welding gun body connected to the base; the welding gun body comprises a mounting bracket, a gun barrel, a gun core, a gun core position sensor, a nail feeding tube and a second spring; the mounting bracket comprises a first vertical plate and a second vertical plate arranged in parallel and at intervals, the gun barrel is fixedly arranged at the first ends of the first vertical plate and the second vertical plate, the second ends of the first vertical plate and the second vertical plate face the base, and the first vertical plate and the second vertical plate are arranged perpendicular to the gun barrel; the gun core is movably arranged inside the gun barrel along the axial direction, and a driving unit for driving the gun core to move along the axial direction is arranged in the gun barrel; a gun head is arranged at the first end of the gun core, and the gun head A chuck is connected; the first vertical plate is arranged close to the gun head, and the second vertical plate is arranged away from the gun head; a connecting protrusion is protrudingly arranged on the circumferential side wall of the second end of the gun core, and a grating unit is installed on the connecting protrusion; the end of the nail feeding tube is connected to the gun head of the gun core; a strip opening is opened on the side of the outer wall of the gun barrel facing the base, and the connecting protrusion extends out of the gun barrel from the strip opening; a gun core position sensor is fixedly arranged on the gun barrel and is located outside the strip opening; a second hook is arranged on the first vertical plate or the second vertical plate; the first end of the second spring is connected to the second hook, and the second end is connected to the connecting protrusion; the gun core position sensor is used to sense the grating unit.

[0005] Furthermore, the grating unit includes a first grating protruding from a first side of the extension block, and a second grating protruding from a second side of the extension block; the gun core position sensor includes a first position sensor arranged on a side of the strip opening close to the first grating and a second position sensor arranged on a side of the strip opening close to the second grating; the first position sensor is used to sense the first grating, and the second position sensor is used to sense the second grating.

[0006] Furthermore, two guide sleeves are fixedly arranged on the base at parallel intervals, a through hole is opened in the middle of the guide sleeve, and a connecting column is fixedly arranged on the end of one guide sleeve; two sliding columns are also connected in parallel between the first vertical plate and the second vertical plate, and the two sliding columns pass through the through holes of the two guide sleeves respectively; a first hook is arranged on the side of the first vertical plate or the second vertical plate, and the first end of a first spring is connected to the connecting column, and the second end is connected to the first hook.

[0007] Furthermore, a first connecting groove is axially recessed at the end of the connecting column, and the first end of the first spring is connected to the first connecting groove of the connecting column.

[0008] Furthermore, a limit position sensing block is protruding and fixedly provided at the end of the other guide sleeve, and a limit position sensor is provided at a position close to the limit position sensing block on the side of the first vertical plate or the second vertical plate.

[0009] Furthermore, a mounting plate is provided on the side of the first vertical plate facing the second vertical plate, the limit position sensor is installed on the mounting plate, and the second hook is protrudingly provided on the mounting plate.

[0010] Furthermore, the welding gun body also includes an abutment column, a first end of which is connected to the first vertical plate, and a second end of which protrudes from the clamp of the gun core.

[0011] Compared with the prior art, the workpiece height intelligent adaptive device of the stud welding device of the present invention comprises a base and a welding gun body connected to the base; the welding gun body comprises a mounting bracket, a gun barrel, a gun core, a gun core position sensor, a nail feeding tube and a second spring; the mounting bracket comprises a first vertical plate and a second vertical plate arranged in parallel and at intervals, the gun barrel is fixedly arranged at the first end of the first vertical plate and the second vertical plate, the second ends of the first vertical plate and the second vertical plate face the base, and the first vertical plate and the second vertical plate are arranged perpendicular to the gun barrel; the gun core is movably arranged inside the gun barrel along the axial direction, and a driving unit for driving the gun core to move along the axial direction is arranged in the gun barrel; the first end of the gun core is provided with a gun The gun head is connected with a chuck; the first vertical plate is arranged close to the gun head, and the second vertical plate is arranged far from the gun head; a connecting protrusion is protrudingly arranged on the circumferential side wall of the second end of the gun core, and a grating unit is installed on the connecting protrusion; the end of the nail feeding tube is connected with the gun head of the gun core; a strip opening is opened on the side of the outer wall of the gun barrel facing the base, and the connecting protrusion extends out of the gun barrel from the strip opening; the gun core position sensor is fixedly arranged on the gun barrel and is located outside the strip opening; a second hook is arranged on the first vertical plate or the second vertical plate; the first end of the second spring is connected to the second hook, and the second end is connected to the connecting protrusion; the gun core position sensor is used to sense the grating unit. In this way, the height of the workpiece can be adapted to the accuracy of the control of the melting depth. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The embodiments of the present invention are described below in conjunction with the accompanying drawings, wherein:

[0013] Figure 1 A three-dimensional schematic diagram of the workpiece height intelligent self-adaptive device of the stud welding device provided by the present invention.

[0014] Figure 2 A schematic diagram of the disassembly of the workpiece height intelligent self-adaptive device of the stud welding device provided by the present invention.

[0015] Figure 3 An exploded schematic diagram of the workpiece height intelligent self-adaptive device of the stud welding device provided by the present invention.

[0016] Figure 4 A schematic diagram showing the disassembly of the workpiece height intelligent adaptive device of the stud welding device provided by the present invention from another perspective.

[0017] Figure 5 for Figure 4 An enlarged schematic diagram of part A in FIG.

[0018] Figure 6 for Figure 2 Schematic diagram of the disassembled welding gun body in. DETAILED DESCRIPTION

[0019] The specific embodiments of the present invention are further described in detail below based on the accompanying drawings. It should be understood that the description of the embodiments of the present invention herein is not intended to limit the protection scope of the present invention.

[0020] Please refer to Figure 1 and Figure 2 The workpiece height intelligent adaptive device of the stud welding device provided by the present invention comprises a base 10, a welding gun body 20 and a first spring 30 connecting the base 10 and the welding gun body 20. Two guide sleeves 11 are fixedly arranged on the base 10 in parallel and at intervals, and a through hole is opened in the middle of the guide sleeve 11, and a damping unit is arranged in the through hole.

[0021] Please refer to Figure 3 A connecting column 12 is fixedly provided at the end of one guide sleeve 11, and a first connecting groove 121 is recessed at the end of the connecting column 12 along the axial direction; an extreme position sensing block 13 is protrudingly fixedly provided at the end of the other guide sleeve 11. The welding gun body 20 includes a mounting bracket 21, a gun barrel 22, a gun core 23, an extreme position sensor 24, a gun core position sensor 25, an abutting column 26, a nail feeding tube 27, two sliding columns 28 and a second spring 29.

[0022] The mounting bracket 21 includes a first vertical plate 211 and a second vertical plate 212 arranged in parallel and spaced apart. The gun barrel 22 is fixedly arranged at the first ends of the first vertical plate 211 and the second vertical plate 212. The second ends of the first vertical plate 211 and the second vertical plate 212 face the base 10. The first vertical plate 211 and the second vertical plate 212 are arranged perpendicular to the gun barrel 22.

[0023] The two sliding posts 28 are connected in parallel between the first vertical plate 211 and the second vertical plate 212 , and pass through the through holes of the two guide sleeves 11 respectively, and are slidably connected to the inner side wall of the guide sleeve 11 through the damping unit.

[0024] The slide column 28 is arranged parallel to the gun barrel 22. The gun core 23 is movably arranged inside the gun barrel 22 along the axial direction, and a driving unit for driving the gun core 23 to move along the axial direction is arranged inside the gun barrel 22. The driving unit is an electromagnetic driving component.

[0025] The first end of the gun core 23 is provided with a gun head 231, and the gun head 231 is connected to a clamp 232; a connecting protrusion 233 is protrudingly provided on the circumferential side wall of the second end of the gun core 23, and the first end of the second spring 29 is connected to the connecting protrusion 233. The connecting protrusion 233 is also connected to an extension block 234, and a grating unit 235 is installed on the extension block 234.

[0026] The end of the nail feeding tube 27 is connected to the gun head 231 of the gun core 23 to supply screws to the gun core 23 .

[0027] A strip-shaped opening is formed on the outer wall of the gun barrel 22 facing the base 10 , and the connecting protrusion 233 and the extension block 234 extend out of the gun barrel 22 from the strip-shaped opening.

[0028] The gun core position sensor 25 is fixedly disposed on the gun barrel 22 and is located outside the strip-shaped opening.

[0029] The first vertical plate 211 is disposed close to the gun head 231 , and the second vertical plate 212 is disposed away from the gun head 231 .

[0030] The first end of the abutment column 26 is connected to the first vertical plate 211, and the second end protrudes from the clamp 232 of the gun core 23, that is, when the first end of the gun core 23 is facing downward, the height of the second end of the abutment column 26 in the free state is lower than the height of the clamp 232, and there is a first distance between the clamp 232 in the free state and the second end of the abutment column 26. In this way, after the workpiece abuts the second end of the abutment column 26 upward for a distance, it will abut against the gun core 23, thereby driving the welding gun body 20 to move upward for a distance as a whole.

[0031] A first hook 2121 is disposed on the side of the second vertical plate 212 facing the first vertical plate 211 . The first end of the first spring 30 is connected to the first connecting groove 121 of the connecting column 12 , and the second end is connected to the first hook 2121 .

[0032] The limit position sensor 24 is disposed on the side of the first vertical plate 211 facing the second vertical plate 212 , and the limit position sensor 24 is used to sense the limit position sensing block 13 .

[0033] Please refer to Figure 4 and Figure 5 A mounting plate 2111 is disposed on the side of the first vertical plate 211 facing the second vertical plate 212, the limit position sensor 24 is mounted on the mounting plate 2111, and a second hook 2112 is protrudingly disposed on the mounting plate 2111. The first end of the second spring 29 is connected to the second hook 2112.

[0034] Please refer to Figure 6 The grating unit 235 includes a first grating 2351 protruding from a first side of the extending block 234 , and a second grating 2352 protruding from a second side of the extending block 234 .

[0035] The gun core position sensor 25 includes a first position sensor 251 disposed on a side of the strip-shaped opening close to the first grating 2351 and a second position sensor 252 disposed on a side of the strip-shaped opening close to the second grating 2352 .

[0036] The first position sensor 251 is used to sense the first grating 2351 to obtain a first moving distance of the gun core 23 , and the second position sensor 252 is used to sense the second grating 2352 to obtain a second moving distance of the gun core 23 .

[0037] During operation, the gun core 23 first abuts against the workpiece, and the workpiece height intelligent adaptive device of the stud welding device provided by the present invention moves downward for a distance. Under the abutment of the workpiece, the gun core 23 moves upward by a first moving distance relative to the gun barrel 22. The first position sensor 251 is used to detect the first moving distance, and sets the position of the gun barrel 22 after moving the first moving distance as a reference origin. During welding, the driving unit in the gun barrel 22 drives the gun core 23 to move downward by a second moving distance. The second position sensor 252 detects the second moving distance based on the reference origin. The second moving distance is the penetration depth that needs to be controlled during welding.

[0038] In other embodiments, the second position sensor 252 and the second grating 2352 may be eliminated. The first position sensor 251 senses the first grating 2351 based on the reference origin to detect the second moving distance.

[0039] Before welding, the heights of some workpieces are relatively high. When the workpiece height intelligent adaptive device of the stud welding device moves downward beyond the first distance between the chuck 232 and the second end of the abutment column 26, the abutment column 26 first moves upward relative to the barrel 22 by a first moving distance under the abutment of the workpiece, and then the workpiece abuts against the gun core 23, driving the welding gun body 20 as a whole to move upward relative to the base 10 by a third moving distance. At this time, the welding gun body 20 moves upward as a whole, and the gun core 23 does not move relative to the barrel 22. Therefore, the position of the barrel 22 after moving the first moving distance is still set as the reference origin. During welding, the driving unit in the barrel 22 drives the gun core 23 to move downward by a second moving distance, and the second position sensor 252 detects the second moving distance based on the reference origin.

[0040] The workpiece height intelligent self-adaptive device of the stud welding device provided by the present invention is also provided with an alarm, which can be set on the gun barrel 22 or the mounting bracket 21. When the limit position sensor 24 senses the limit position sensing block 13, the alarm sounds and the workpiece height intelligent self-adaptive device of the stud welding device stops working, thereby preventing the workpiece height intelligent self-adaptive device of the stud welding device from being damaged by the workpiece.

[0041] The workpiece height intelligent adaptive device of the stud welding device of the present invention can also cooperate with the horizontal x-axis and y-axis driving devices to achieve three-dimensional positioning and automatically cooperate with the position of the workpiece to work.

[0042] Compared with the prior art, the workpiece height intelligent adaptive device of the stud welding device of the present invention includes a base 10 and a welding gun body 20 connected to the base 10; the welding gun body 20 includes a mounting bracket 21, a gun barrel 22, a gun core 23, a gun core position sensor 25, a nail feeding tube 27 and a second spring 29; the mounting bracket 21 includes a first vertical plate 211 and a second vertical plate 212 arranged in parallel and spaced apart, the gun barrel 22 is fixedly arranged at the first ends of the first vertical plate 211 and the second vertical plate 212, the second ends of the first vertical plate 211 and the second vertical plate 212 face the base 10, and the first vertical plate 211 and the second vertical plate 212 are arranged perpendicular to the gun barrel 22; the gun core 23 is movably arranged inside the gun barrel 22 along the axial direction, and a driving unit for driving the gun core 23 to move along the axial direction is arranged in the gun barrel 22; the first end of the gun core 23 is provided with a gun head 231, and the gun head 231 is connected with a chuck 232; the first vertical plate 211 is arranged close to the gun head 231, and the second vertical plate 212 is arranged away from the gun head 231; a connecting protrusion 233 is protrudingly arranged on the circumferential side wall of the second end of the gun core 23, and a grating unit 235 is installed on the connecting protrusion 233; the end of the nail feeding tube 27 is connected with the gun head 231 of the gun core 23; a strip opening is opened on the outer side wall of the gun barrel 22 facing the base 10, and the connecting protrusion 233 extends out of the gun barrel 22 from the strip opening; the gun core position sensor 25 is fixedly arranged on the gun barrel 22 and is located outside the strip opening; a second hook 2112 is arranged on the first vertical plate 211 or the second vertical plate 212; the first end of the second spring 29 is connected to the second hook 2112, and the second end is connected to the connecting protrusion 233; the gun core position sensor 25 is used to sense the grating unit 235. In this way, the height of the workpiece can be adapted to the accuracy of the control of the melting depth.

[0043] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modification, equivalent substitution or improvement within the spirit of the present invention is included in the scope of the claims of the present invention.

Claims

1. A workpiece height intelligent self-adaptive device for a stud welding device, characterized in that: The invention comprises a base and a welding gun body connected with the base; the welding gun body comprises a mounting bracket, a gun barrel, a gun core, a gun core position sensor, a nail feeding tube and a second spring; the mounting bracket comprises a first vertical plate and a second vertical plate arranged in parallel and at intervals, the gun barrel is fixedly arranged at the first ends of the first vertical plate and the second vertical plate, the second ends of the first vertical plate and the second vertical plate face the base, and the first vertical plate and the second vertical plate are arranged perpendicular to the gun barrel; the gun core is movably arranged inside the gun barrel along the axial direction, and a driving unit for driving the gun core to move along the axial direction is arranged inside the gun barrel; a gun head is arranged at the first end of the gun core, and the gun head is connected with a chuck; the first vertical plate is arranged close to the gun head, and the second vertical plate is arranged away from the gun head; a connecting protrusion is protrudingly arranged on the circumferential side wall of the second end of the gun core, and a grating unit is installed on the connecting protrusion; the end of the nail feeding tube is connected with the gun head of the gun core; a strip opening is opened on the side of the outer wall of the gun barrel facing the base, and the connecting protrusion extends from the strip opening to the outside of the gun barrel; the gun core position sensor is fixedly arranged on the gun barrel and is located on the outside of the strip opening; the first vertical plate Or a second hook is arranged on the second vertical plate; the first end of the second spring is connected to the second hook, and the second end is connected to the connecting protrusion; the gun core position sensor is used to sense the grating unit, and the grating unit includes a first grating protruding from the first side of the extension block, and a second grating protruding from the second side of the extension block; the gun core position sensor includes a first position sensor arranged on the side of the strip opening close to the first grating and a second position sensor arranged on the side of the strip opening close to the second grating; the first position sensor is used to sense the first grating, and the second position sensor is used to sense the second grating, and two guide sleeves are fixedly arranged on the base in parallel and at intervals, a through hole is opened in the middle of the guide sleeve, and a connecting column is fixedly arranged at the end of one guide sleeve; two sliding columns are also connected in parallel between the first vertical plate and the second vertical plate, and the two sliding columns pass through the through holes of the two guide sleeves respectively; a first hook is arranged on the side of the first vertical plate or the second vertical plate, and the first end of a first spring is connected to the connecting column, and the second end is connected to the first hook.

2. The workpiece height intelligent self-adapting device of the stud welding device according to claim 1, characterized in that: The end of the connecting column is axially recessed to form a first connecting groove, and the first end of the first spring is connected to the first connecting groove of the connecting column.

3. The workpiece height intelligent self-adapting device of the stud welding device according to claim 1, characterized in that: A limit position sensing block is protruding and fixedly provided at the end of the other guide sleeve, and a limit position sensor is provided at a position near the limit position sensing block on the side of the first vertical plate or the second vertical plate.

4. The workpiece height intelligent self-adapting device of the stud welding device according to claim 3, characterized in that: A mounting plate is arranged on the side of the first vertical plate facing the second vertical plate, the limit position sensor is mounted on the mounting plate, and the second hook is protrudingly arranged on the mounting plate.

5. The workpiece height intelligent self-adapting device of the stud welding device according to claim 1, characterized in that: The welding gun body also includes an abutment column, a first end of which is connected to the first vertical plate, and a second end of which protrudes from the clamp of the gun core.

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