CN110666319B

CN110666319B - Automatic welding device for nail planting

Info

Publication number: CN110666319B
Application number: CN201911079802.5A
Authority: CN
Inventors: 曾小顺
Original assignee: Fuzhou Chengchang Machinery Co ltd
Current assignee: Fuzhou Chengchang Machinery Co ltd
Priority date: 2019-11-07
Filing date: 2019-11-07
Publication date: 2021-06-08
Anticipated expiration: 2039-11-07
Also published as: CN110666319A

Abstract

The invention provides an automatic welding device for nail planting, which comprises a welding jig and a welding robot; the welding jig comprises a jig base, a plurality of jig clamping mechanisms and a plurality of fixed supporting mechanisms, wherein the jig clamping mechanisms and the fixed supporting mechanisms are arranged on the jig base; the plurality of jig clamping mechanisms and the plurality of fixed supporting mechanisms are equal in number and correspond to each other one by one so as to fix the cover plate assembly; the welding jig also comprises a plurality of nail-planting welding devices; the plurality of nail-planting welding devices, the plurality of jig clamping mechanisms and the plurality of fixed supporting mechanisms are equal in number and are in one-to-one correspondence so as to assist in welding corresponding areas; the nail planting welding device comprises a base cylinder arranged on a jig base, a base fixing block arranged on the base cylinder, a lower electrode fixed on the base fixing block, a top seat fixing block arranged on a jig clamping mechanism and an upper electrode fixed on the top seat fixing block.

Description

Automatic welding device for nail planting

Technical Field

The invention relates to the technical field of welding of automobile shell parts, in particular to an automatic nail-implanting welding device.

Background

As manufacturing industries continue to develop, demands for manufacturing accuracy are becoming higher nowadays. In the automobile manufacturing industry, how to weld the wheel cover plate has higher requirements on the stability of the installation surface, the stability of the embedded nail, the welding position of the embedded nail and the like.

For example, there is patent application No. 201910163255.2, which discloses a positioning welding tool for nail-implanting cover plate assembly of right front wheel cover of automobile, comprising a welding support platform and at least one group of supporting and clamping mechanisms arranged above the welding support platform along the length direction of the cover plate assembly, wherein the supporting and clamping mechanisms support and fix the cover plate assembly, and the cover plate assembly suspension is arranged above the welding machine support platform; the support clamping mechanisms respectively comprise a fixed support mechanism and a movable clamping mechanism, the fixed support mechanisms are arranged on the welding support platform, the fixed support mechanisms support the cover plate assembly, the movable clamping mechanisms are arranged adjacent to the fixed support mechanisms, the movable ends of the movable clamping mechanisms are positioned above the cover plate assembly, and the movable ends of the movable clamping mechanisms of each group are clamped or deviated from the cover plate assembly on the corresponding fixed support mechanism; the fixed supporting mechanism is supported on the inner side surface of each attaching surface M of the cover plate assembly, and the movable end of the movable clamping mechanism correspondingly presses and covers the outer side surface of each attaching surface M.

The nail cover plate assembly fixed-position welding frock is planted to front wheel cover on the right side of car that above-mentioned patent discloses fixes the cover plate assembly centre gripping on fixed support mechanism through movable fixture, reduces the diffusion of stress in the welding, reduces the deformation region. It does play a role in ensuring the accuracy of the welding position, but as far as welding is concerned, it still relies entirely on an external welding torch (pressure torch or lift torch) to perform welding. Thus, the nail needs to be placed and aligned for many times when welding one cover plate assembly (the point P in the attached figure 1 of the specification is the place where each nail is placed and aligned). Therefore, it is not very convenient in soldering.

Of course, there is also application number 201420207287.0 at present to disclose a kind of planting nail spot welding anchor clamps, it includes the anchor clamps body, electrically conductive clamp splice, centre gripping subassembly, copper sheathing installation piece and suit plant the nail and rather than the copper sheathing of electric contact, the centre gripping subassembly articulates on the anchor clamps body, copper sheathing installation piece install on the anchor clamps body, electrically conductive clamp splice fixed connection on the centre gripping subassembly to be provided with the mounting hole on the electrically conductive clamp splice, the copper sheathing installation piece has the planting nail locating hole, and the copper sheathing suit is on the copper sheathing installation piece, the copper sheathing cooperatees so that the nail is planted in the location with planting the nail locating hole to the installation face of installation copper sheathing is parallel with electrically conductive clamp splice on the copper sheathing installation piece, leaves the solder joint interval between the top of copper sheathing and the electrically conductive clamp splice, electrically conductive clamp splice and copper sheathing pass through electric wire and planting nail electromechanical nature connection respectively. Although it can assist welding, improve welding efficiency. But it is not directly suitable for the automobile right front wheel cover nail-planting cover plate assembly positioning welding tool, and no one can use it on the automobile right front wheel cover nail-planting cover plate assembly positioning welding tool.

Disclosure of Invention

The invention aims to solve the technical problem of providing an automatic welding device for a planting nail, which realizes quick welding and improves the welding efficiency.

The invention has the technical scheme that the automatic welding device for the planted nails comprises a welding jig and a welding robot; the welding jig comprises a jig base, a plurality of jig clamping mechanisms and a plurality of fixed supporting mechanisms, wherein the jig clamping mechanisms and the fixed supporting mechanisms are arranged on the jig base; the jig clamping mechanisms and the fixed supporting mechanisms are equal in number and correspond to each other one by one so as to fix the cover plate assembly; the welding jig further comprises a plurality of nail planting welding devices; the plurality of nail-planting welding devices, the plurality of jig clamping mechanisms and the plurality of fixed supporting mechanisms are equal in number and are in one-to-one correspondence so as to assist in welding corresponding areas; the nail-planting welding device comprises a base cylinder arranged on the jig base, a base fixing block arranged on the base cylinder, a lower electrode fixed on the base fixing block, a top seat fixing block arranged on the jig clamping mechanism and an upper electrode fixed on the top seat fixing block; when the jig clamping mechanism presses on the fixed supporting mechanism, the upper electrode presses on a region corresponding to the cover plate assembly; when the base cylinder extends out, the lower electrode passes through the planting nail in the cover plate assembly and the upper electrode pair; the welding robot comprises a welding tongs, an upper electrode head and a lower electrode head which are arranged on the welding tongs; the electrode holder clamps the lower electrode and the upper electrode pair after the electrode holder is arranged on the lower electrode and the upper electrode pair, so that the upper electrode head and the lower electrode head are respectively opposite to the upper electrode and the lower electrode, and then the electrode holder is electrified.

In one embodiment, the welding tongs comprise an upper tong arm and a lower tong arm hinged to each other; the upper electrode head is arranged on the upper clamp arm, and the lower electrode head is arranged on the lower clamp arm.

As an embodiment, the fixed supporting mechanism comprises a supporting base arranged on the jig base, a lower supporting piece arranged on the supporting base, and a lower pressing piece arranged on the lower supporting piece; the jig clamping mechanism comprises an upper supporting piece hinged on the lower supporting piece, an upper pressing piece arranged on the upper supporting piece, and a pressing-down driving cylinder for driving the upper supporting piece to press down; when the upper supporting piece is pressed downwards, the upper pressing piece and the lower pressing piece fix the mask plate assembly, and the upper electrode presses the corresponding area of the mask plate assembly.

As an implementation mode, the nail-planting welding device further comprises an insulating sleeve, an adjusting nut, a lower electrode sleeve and a set screw; the insulating sleeve is sleeved on the lower electrode and fixed relative to the lower electrode, and the insulating sleeve is used for fixing the lower electrode on the base fixing block; the lower electrode sleeve is sleeved on the lower electrode and can move up and down relative to the lower electrode; the adjusting nut is in threaded connection with the lower electrode and is positioned below the lower electrode sleeve, and the relative positions of the lower electrode sleeve and the lower electrode can be adjusted by rotating the adjusting nut; the set screw penetrates into the lower electrode sleeve along the radial direction of the lower electrode sleeve so as to fix the lower electrode sleeve on the lower electrode; the lower electrode is enabled to be convex or concave relative to the lower electrode sleeve through the adjusting nut and the set screw so as to change the contact area of the lower electrode and the planting nail and weld the planting nails with different specifications.

As an implementation mode, the welding jig further comprises a roller arranged on the jig base.

As an implementation mode, the welding jig further comprises a connecting piece arranged on the jig base; the connecting pieces comprise four connecting pieces, and the two connecting pieces are arranged on two sides of the jig base respectively.

In one embodiment, the connecting member is engaged with an external hanging member to lift the jig base.

Compared with the prior art, the welding cover plate assembly has the advantages that the cover plate assembly is fixed through the jig clamping mechanisms and the fixing and supporting mechanisms, stress diffusion in welding is reduced, and a deformation area is reduced. The plant nails are placed in the corresponding positions of the cover plate assembly at one time, so that when the cover plate assembly is fixed by the plurality of jig clamping mechanisms and the plurality of fixed supporting mechanisms, the plant nails in the corresponding positions are covered by the pressed upper electrode to prevent the plant nails from falling out. Therefore, when the base cylinder stretches out to enable the lower electrode to be aligned with the upper electrode through the planting nail, the quick welding can be achieved, and the welding efficiency is improved. When the upper electrode head and the lower electrode head respectively face the upper electrode and the lower electrode and are electrified, the welding electrode can be instantly welded under high current, and the welding requirement is met.

Drawings

Fig. 1 is a perspective view of a welding jig according to an embodiment of the present invention;

fig. 2 is a perspective view of a jig clamping mechanism, a fixed supporting mechanism, and a nail-implanting welding device according to an embodiment of the present invention;

fig. 3 is a first perspective view of a welding robot according to an embodiment of the present invention;

fig. 4 is a second perspective view of a welding robot provided in an embodiment of the present invention;

fig. 5 is a perspective view of a jig clamping mechanism and a fixing and supporting mechanism according to an embodiment of the present invention;

fig. 6 is a front view of a nail-implanting welding device according to an embodiment of the present invention;

fig. 7 is a sectional view of a nail implantation welding device according to an embodiment of the present invention.

In the figure: 1. welding a jig; 11. a jig base; 12. a jig clamping mechanism; 121. an upper support member; 122. an upper compression member; 123. a driving cylinder is pressed downwards; 13. a fixed support mechanism; 131. a support base; 132. a lower support; 133. a lower compression member; 14. a nail planting welding device; 141. a base cylinder; 142. a base fixing block; 143. a lower electrode; 144. a top seat fixing block; 145. an upper electrode; 146. an insulating sleeve; 147. adjusting the nut; 148. a lower electrode sleeve; 149. a set screw; 15. a roller; 16. a connecting member; 2. a welding robot; 21. welding tongs; 211. an upper tong arm; 212. a lower jawarm; 22. an upper electrode head; 23. a lower electrode head.

Detailed Description

The foregoing and additional embodiments and advantages of the present invention are described more fully hereinafter with reference to the accompanying drawings. It is to be understood that the described embodiments are merely some, and not all, embodiments of the invention.

In one embodiment, as shown in fig. 1-3. The automatic welding set of planting nail that this embodiment provided, it includes welding jig 1 and welding machines people 2. Fig. 1 shows a welding jig 1, and fig. 3 shows a welding robot 2. The welding jig 1 includes a jig base 11, a plurality of jig clamping mechanisms 12 and a plurality of fixed support mechanisms 13 provided on the jig base 11. The plurality of jig clamping mechanisms 12 and the plurality of fixed supporting mechanisms 13 are equal in number and correspond to one another one by one so as to fix the cover plate assembly. The welding jig 1 further includes a plurality of nail-planting welding devices 14. The nail-planting welding devices 14, the jig clamping mechanisms 12 and the fixed supporting mechanisms 13 are equal in number and correspond to one another one by one to assist in corresponding area welding. The cover plate assembly is fixed through the plurality of jig clamping mechanisms 12 and the plurality of fixed supporting mechanisms 13, so that the stress diffusion in welding can be reduced, and the deformation area is reduced. The nail-planting welding device 14 comprises a base cylinder 141 arranged on the jig base 11, a base fixing block 142 arranged on the base cylinder 141, a lower electrode 143 fixed on the base fixing block 142, a top seat fixing block 144 arranged on the jig clamping mechanism 12, and an upper electrode 145 fixed on the top seat fixing block 144. When the jig clamping mechanism 12 is pressed on the fixed support mechanism 13, the upper electrode 145 is pressed on the corresponding area of the mask plate assembly. When the pedestal cylinder 141 is extended, the lower electrode 143 passes over the pair of pegs and upper electrode 145 in the shroud assembly. The plant nails are placed in the corresponding positions of the cover plate assembly at one time, so that the pressed upper electrode 145 covers the plant nails in the corresponding positions to prevent the plant nails from falling out when the cover plate assembly is fixed by the jig clamping mechanisms 12 and the fixed supporting mechanisms 13. The welding robot 2 includes a holder 21, an upper electrode tip 22 and a lower electrode tip 23 provided on the holder 21. In this case, the electrode holder 21 is clamped after the lower electrode 143 and the upper electrode 145 are brought into contact with each other, and then the upper electrode tip 22 and the lower electrode tip 23 are brought into contact with the upper electrode 145 and the lower electrode 143, respectively, and then the current is applied.

Therefore, in the present embodiment, the mask plate assembly is fixed by the plurality of jig clamping mechanisms 12 and the plurality of fixing and supporting mechanisms 13, so that the diffusion of stress during welding is reduced, and the deformation region is reduced. The plant nails are placed in the corresponding positions of the cover plate assembly at one time, so that the pressed upper electrode 145 covers the plant nails in the corresponding positions to prevent the plant nails from falling out when the cover plate assembly is fixed by the jig clamping mechanisms 12 and the fixed supporting mechanisms 13. Therefore, when the base cylinder 141 extends to enable the lower electrode 143 to be aligned with the upper electrode 145 through the planting nails, rapid welding can be achieved, and welding efficiency is improved. When the upper electrode head 22 and the lower electrode head 23 are respectively electrified to the upper electrode 145 and the lower electrode 143, the electrodes can be instantly welded under a large current, so that the welding requirement is met.

In one embodiment, as shown in FIG. 4. In the automatic nail-planting welding device provided by the present embodiment, the welding tongs 21 includes an upper tong arm 211 and a lower tong arm 212 hinged to each other. The upper electrode tip 22 is provided on the upper clamp arm 211, and the lower electrode tip 23 is provided on the lower clamp arm 212.

In one embodiment, as shown in FIG. 5. In the automatic nail-planting welding device provided by the present embodiment, the fixing and supporting mechanism 13 includes a supporting base 131 disposed on the jig base 11, a lower supporting member 132 disposed on the supporting base 131, and a lower pressing member 133 disposed on the lower supporting member 132. The jig clamping mechanism 12 includes an upper support 121 hinged to the lower support 132, an upper pressing member 122 provided on the upper support 121, and a pressing-down driving cylinder 123 for driving the upper support 121 to press down. Wherein, when the upper support member 121 is pressed down, the upper pressing member 122 and the lower pressing member 133 fix the mask assembly, and the upper electrode 145 is pressed against a corresponding region of the mask assembly.

In the present embodiment, when the upper support 121 is pressed downward by the pressing-down driving cylinder 123, the cover plate assembly may be fixed by the upper support 121 and the lower support 132. Wherein the upper and

lower compression members

122 and 133 maintain the position of the shroud assembly. And when the upper support 121 is driven to press downwards by the pressing-down driving cylinder 123, the pressed-down upper electrode 145 can cover the planting nail at the corresponding position to prevent the planting nail from falling out. Therefore, when the base cylinder 141 extends to enable the lower electrode 143 to be aligned with the upper electrode 145 through the planting nails, rapid welding can be achieved, and welding efficiency is improved.

In one embodiment, as shown in fig. 6-7. In the automatic nail-planting welding device according to the present embodiment, the nail-planting welding device 14 includes an insulating sleeve 146, an adjusting nut 147, a lower electrode sleeve 148, and a set screw 149. The insulating sleeve 146 is sleeved on the lower electrode 143 and fixed relative to the lower electrode 143, and the insulating sleeve 146 is used for fixing the lower electrode 143 on the base fixing block 142. The lower electrode sleeve 148 is sleeved on the lower electrode 143 and can move up and down relative to the lower electrode 143. An adjusting nut 147 is threaded onto the lower electrode 143 and is positioned below the lower electrode sleeve 148, and the relative positions of the lower electrode sleeve 148 and the lower electrode 143 can be adjusted by rotating the adjusting nut 147. A retaining screw 149 penetrates into the lower electrode sleeve 148 in the radial direction of the lower electrode sleeve 148 to fix the lower electrode sleeve 148 to the lower electrode 143. Wherein, the lower electrode 143 is protruded or recessed relative to the lower electrode sleeve 148 by adjusting the nut 147 and the stop screw 149, so as to change the contact area of the lower electrode 143 and the planting nail, and weld the planting nails with different specifications.

In this embodiment, the lower electrode 143 may be adjusted to protrude or recess relative to the lower electrode sleeve 148, so as to change the contact area between the lower electrode 143 and the nail, and weld the nails with different specifications. In the embodiment, the contact area is changed to change the current so as to adapt to the planting nails with different specifications. In this embodiment, the insulating sheath 146 and the lower electrode sheath 148 are not electrically conductive. The adjustment nut 147 and the set screw 149 are both electrically conductive due to direct contact with the lower electrode 143. But does not contact other components in position because it is separated by the insulating sleeve 146 and the lower electrode sleeve 148. The automatic welding set of planting nail that this embodiment provided also is a big innovation point of this application, has changed traditional structure to a great extent.

In one embodiment, as shown in FIG. 1. In the automatic nail-planting welding device provided by the present embodiment, the welding jig 1 further includes a roller 15 disposed on the jig base 11. The welding jig 1 further comprises a connecting member 16 provided on the jig base 11. The connecting pieces 16 comprise four connecting pieces, and every two connecting pieces 16 are respectively arranged on two sides of the jig base 11. The connecting member 16 is engaged with an external hanging member to lift the jig base 11. In the present embodiment, the above structure largely retains the conventional structure.

The above-described embodiments further explain the object, technical means, and advantageous effects of the present invention in detail. It should be understood that the above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. It should be understood that any modifications, equivalents, improvements and the like, which come within the spirit and principle of the invention, may occur to those skilled in the art and are intended to be included within the scope of the invention.

Claims

1. The automatic welding device for the planted nails is characterized by comprising a welding jig (1) and a welding robot (2);

the welding jig (1) comprises a jig base (11), a plurality of jig clamping mechanisms (12) arranged on the jig base (11) and a plurality of fixed supporting mechanisms (13); the jig clamping mechanisms (12) and the fixed supporting mechanisms (13) are equal in number and correspond to each other one by one so as to fix the cover plate assembly; the welding jig (1) further comprises a plurality of nail-planting welding devices (14); the number of the nail planting welding devices (14), the number of the jig clamping mechanisms (12) and the number of the fixed supporting mechanisms (13) are equal and are in one-to-one correspondence, so that the corresponding region welding is assisted; the nail-planting welding device (14) comprises a base cylinder (141) arranged on the jig base (11), a base fixing block (142) arranged on the base cylinder (141), a lower electrode (143) fixed on the base fixing block (142), a top seat fixing block (144) arranged on the jig clamping mechanism (12), and an upper electrode (145) fixed on the top seat fixing block (144); when the jig clamping mechanism (12) presses the fixed supporting mechanism (13), the upper electrode (145) presses the corresponding area of the cover plate assembly; when the base cylinder (141) extends, the lower electrode (143) passes through the planting nail in the cover plate assembly and the upper electrode (145) pair; the welding robot (2) comprises a welding tongs (21), an upper electrode head (22) and a lower electrode head (23) which are arranged on the welding tongs (21); wherein the welding tongs (21) clamps the lower electrode (143) and the upper electrode (145) after the upper electrode (143) and the lower electrode (145) are aligned, so that the upper electrode head (22) and the lower electrode head (23) are aligned with the upper electrode (145) and the lower electrode (143), respectively, and then are electrified;

the nail-planting welding device (14) further comprises an insulating sleeve (146), an adjusting nut (147), a lower electrode sleeve (148) and a set screw (149); the insulating sleeve (146) is sleeved on the lower electrode (143) and fixed relative to the lower electrode (143), and the insulating sleeve (146) is used for fixing the lower electrode (143) on the base fixing block (142); the lower electrode sleeve (148) is sleeved on the lower electrode (143) and can move up and down relative to the lower electrode (143); the adjusting nut (147) is in threaded connection with the lower electrode (143) and is positioned below the lower electrode sleeve (148), and the relative positions of the lower electrode sleeve (148) and the lower electrode (143) can be adjusted by rotating the adjusting nut (147); the stop screw (149) penetrates into the lower electrode sleeve (148) along the radial direction of the lower electrode sleeve (148) so as to fix the lower electrode sleeve (148) on the lower electrode (143); the lower electrode (143) is enabled to be protruded or sunken relative to the lower electrode sleeve (148) through the adjusting nut (147) and the fastening screw (149), so that the contact area of the lower electrode (143) and the planting nail is changed, and the planting nails with different specifications are welded.

2. The automated welding device for nail implantation according to claim 1, wherein the welding tongs (21) comprises an upper tong arm (211) and a lower tong arm (212) hinged to each other; the upper electrode head (22) is arranged on the upper clamp arm (211), and the lower electrode head (23) is arranged on the lower clamp arm (212).

3. The automatic welding device for planting nails according to claim 1, characterized in that the fixed support mechanism (13) comprises a support base (131) provided on the jig base (11), a lower support (132) provided on the support base (131), and a lower pressing member (133) provided on the lower support (132);

the jig clamping mechanism (12) comprises an upper supporting piece (121) hinged on the lower supporting piece (132), an upper pressing piece (122) arranged on the upper supporting piece (121), and a downward pressing driving cylinder (123) for driving the upper supporting piece (121) to be pressed downward; when the upper supporting piece (121) is pressed downwards, the upper pressing piece (122) and the lower pressing piece (133) fix the mask plate assembly, and the upper electrode (145) is pressed on a corresponding area of the mask plate assembly.

4. The automatic welding device for planting nails according to claim 1, characterized in that the welding jig (1) further comprises a roller (15) disposed on the jig base (11).

5. The automatic welding device for planting nails according to claim 1, characterized in that the welding jig (1) further comprises a connecting piece (16) arranged on the jig base (11); the connecting pieces (16) comprise four connecting pieces, and the connecting pieces (16) are arranged on two sides of the jig base (11) in pairs respectively.

6. An automatic nail-implanting welding device according to claim 5, characterized in that the connecting piece (16) is matched with an external hanging piece for lifting the jig base (11).