CN108620750B

CN108620750B - Laser spot welding tool for welding bracket on substrate

Info

Publication number: CN108620750B
Application number: CN201710171761.7A
Authority: CN
Inventors: 叶群; 韩诗超; 茅忠群; 诸永定; 李立波
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2017-03-22
Filing date: 2017-03-22
Publication date: 2020-07-28
Anticipated expiration: 2037-03-22
Also published as: CN108620750A

Abstract

The invention relates to a laser spot welding tool for welding a bracket on a substrate, which is characterized in that: the table top is fixed with an installation plate which is positioned above the table top and is arranged at an interval with the table top up and down, and the table top is provided with a limit structure for restricting the substrate on the table top; the positioning plate is positioned above the base plate constrained on the table board and can vertically move up and down under the drive of the first air cylinder, one or more positioning through holes for exposing welding positions are formed in the positioning plate, and positioning structures for detachably positioning the support are arranged in the positioning through holes; and the positioning plate basically or completely shields the surface of the substrate under the condition that the positioning plate moves downwards to enable the welding surface of the bracket to be in contact with the top surface of the substrate. The tool ensures the accuracy of the installation and the positioning of the plurality of brackets on the substrate and ensures that the substrate is not damaged by welding spatters.

Description

Laser spot welding tool for welding bracket on substrate

Technical Field

The invention relates to a tool clamp for welding a certain component to another component, in particular to a laser spot welding tool for welding a bracket to a substrate.

Background

The existing welding tool is mostly used for mutual welding of edges of certain parts, the parts can be a smoke collecting hood or an oil cup, for example, the Chinese patent application with the application number of CN201410794875.3, namely 'an adaptive clamp for welding a hood body of an oil-smoke machine', the Chinese patent application with the application number of CN201120257735.4, namely 'a laser welding clamp for a smoke exhaust ventilator hood', and the Chinese patent application with the application number of CN201610782343.7, namely 'a laser welding clamp for a smoke collecting hood of an oil-smoke ventilator', both disclose the welding tool clamp.

In order to make the overall appearance of the range hood more attractive and elegant, a substrate with certain functions, such as a butterfly wing plate for generating negative pressure to smoke, is fixed in the shell of some high-end range hoods, the butterfly wing plate is installed in the shell through a plurality of brackets with buckles fixed on the butterfly wing plate, and the brackets with the buckles are fixed on the substrate in a welding manner.

The technical problem to be solved by the technical personnel in the field is that few tool fixtures are used for welding a small part to a large part, so that the accuracy of installing and positioning a plurality of brackets on a substrate is ensured, and the substrate is not damaged by welding spatters. And the existing tool fixtures can only weld at fixed positions, and sometimes the welding positions are not suitable and are not beneficial to welding.

Disclosure of Invention

The technical problem to be solved by the present invention is to provide a laser spot welding tool for welding a bracket to a substrate, aiming at the current state of the prior art, wherein the tool ensures the accuracy of mounting and positioning a plurality of brackets on the substrate and ensures that the substrate is not damaged by welding spatters.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a with laser spot welding frock on scaffold weldment base plate which characterized in that: the device comprises a frame body, wherein the top of the frame body is provided with a table top, an installation plate is fixed on the table top, the installation plate is positioned above the table top and is arranged at an interval with the table top up and down, and the table top is provided with a limiting structure for restraining a substrate on the table top; the positioning plate is positioned above the base plate restrained on the table board and driven by a first air cylinder arranged on the mounting plate to vertically move up and down, one or more positioning through holes for exposing welding positions between the bracket and the base plate are formed in the positioning plate, and a positioning structure for detachably positioning the bracket is arranged in each positioning through hole; and under the condition that the positioning plate moves downwards to enable the welding surface of the support to be in contact with the top surface of the substrate, the positioning plate basically or completely shields the surface of the substrate.

Optionally, the limiting structure comprises a plurality of limiting blocks fixed on the table top and arranged along the outer edge of the substrate, and the inner end surface of each limiting block is provided with a contact block directly contacting with the outer edge of the substrate. The contact block on the limiting block is in contact with each edge of the substrate, so that the position of the substrate relative to the table board is fixed, the welding precision is ensured, the contact block can be made of flexible materials, and the hanging and the wiping of the side wall of the substrate are reduced.

As an improvement, a plurality of supporting cushion blocks are fixed on the table top, and each supporting cushion block is positioned in a space surrounded by the limiting blocks so as to support the bottom surface of the substrate. The bottom surface of the substrate is prevented from being directly contacted with the table top through the support of the supporting cushion blocks, the problem that the substrate is pressed to generate indentations is effectively solved, and meanwhile, the thickness of the supporting cushion blocks can be selected, so that the substrate can be ensured to be effectively contacted.

As an improvement, the mounting plate is provided with two guide holes, guide sleeves are arranged in the guide holes, two guide rods are fixed on the positioning plate, and the guide rods can move upwards to penetrate through the guide sleeves. Through the guide fit of the guide rod and the guide sleeve, the positioning plate can only move up and down relative to the table top and can slide stably.

Preferably, the positioning structure comprises a positioning block fixed in the positioning through hole, a magnet used for adsorbing the support is arranged in the positioning block, and the support is adsorbed on the positioning block by the magnet. Adopt magnetism to inhale the fixed of mode realization support, have fixed mounting convenient, after the welding was accomplished simultaneously, it is also convenient that support and locating piece break away from.

In a further improvement, a positioning pin inserted into the mounting hole of the bracket is fixed on the positioning block. The accuracy of the mounting position of the bracket on the positioning block is ensured through the positioning matching of the positioning pin and the mounting hole.

In a further improvement, a positioning column inserted into the positioning notch of the bracket is fixed on the positioning block. The accuracy of the mounting position of the bracket on the positioning block is further ensured through the positioning matching of the positioning column and the positioning notch.

Further improved, one side edge of the table top is hinged to the frame body, and a second cylinder used for pushing the table top to turn upwards is arranged at the bottom of the frame body. Therefore, the whole table top, the mounting plate, the positioning plate and the first air cylinder can be turned over at an angle together, and the whole table top can be fixed at a certain angle due to the fact that the driving force is the air cylinder, so that the angle is most suitable for welding.

In order to ensure that the table top rotates stably relative to the support, the left side and the right side of the bottom of the table top are respectively fixed with a guide block, the guide blocks are provided with arc-shaped guide holes, and the upper part of the frame body is fixed with guide posts inserted into the guide holes.

The bottom of the frame body is fixed with a cylinder seat, the bottom of the table top is fixed with a connecting rod, the bottom of the cylinder body of the second cylinder is hinged on the cylinder seat, and the piston rod of the second cylinder is hinged at the lower end of the connecting rod.

Compared with the prior art, the invention has the advantages that: the limiting structure can restrain the base plate on the table top and ensure accurate position, the positioning plate has two functions, one is that the positioning of the supports relative to the positioning plate is realized through the positioning structure in the positioning through hole, the positioning through hole and the positioning structure are multiple, the positioning of the supports relative to the positioning plate is realized, meanwhile, the relative position of the positioning plate and the area limited by the limiting structure is unchanged, and finally the accuracy of the positioning of the supports relative to the base plate is realized; the positioning plate has the further function that spot welding spatter only falls on the positioning plate because the positioning plate basically or completely shields the surface of the substrate, so that the damage of the spot welding spatter to the substrate during welding is effectively prevented; the positioning through hole is exposed at the welding position between the support and the substrate, welding is facilitated, the positioning plate moves upwards after welding is completed, and the support automatically breaks away from the positioning structure when moving upwards due to the fact that the support and the substrate are welded and fixed, and a workpiece is conveniently taken.

Drawings

FIG. 1 is a schematic perspective view (initial state) of an embodiment of the present invention;

FIG. 2 is a schematic perspective view of an embodiment of the present invention (in an initial position and after placement of a substrate and a holder);

FIG. 3 is a schematic perspective view of the embodiment of the present invention (the welding position state with the positioning plate moved downward);

FIG. 4 is a cross-sectional view of FIG. 3;

FIG. 5 is an enlarged view of FIG. 4 at A;

FIG. 6 is an enlarged view of FIG. 4 at B;

FIG. 7 is a schematic perspective view of the embodiment of the present invention (the welding position after the table top is turned over);

FIG. 8 is a schematic perspective view of a frame and a table portion according to an embodiment of the present invention;

FIG. 9 is a schematic perspective view of a positioning plate according to an embodiment of the present invention;

FIG. 10 is a schematic perspective view of a substrate according to an embodiment of the present invention;

fig. 11 is a perspective view of a stent according to an embodiment of the present invention.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As shown in FIGS. 1 to 11, a preferred embodiment of the present invention is shown.

The utility model provides a laser spot welding frock with scaffold weldment on base plate, support 7 is the installing support in this embodiment, and support 7 is buckled by sheet metal and is the U-shaped, and the bottom of the vertical wall of support 7 has the welding limit that turns up, and the top of support is equipped with mounting hole and location breach, and base plate 4 is the butterfly pterygoid lamina in the lampblack absorber, and of course support 7 and base plate 4 are not limited to aforementioned structure.

Comprises that

Support body 1, support body 1 are for being formed by the welding of metal angle steel, and the top of support body 1 is equipped with mesa 2, is fixed with mounting panel 3 on the mesa 2, and the both sides of mounting panel are fixed with mesa 2 through the connecting plate of vertical setting, and mounting panel 3 is located mesa 2 tops and sets up with mesa 2 interval from top to bottom, is equipped with on the mesa 2 to be used for the limit structure of base plate 4 restraint on mesa 2. The mounting plate 3 is provided with two guide holes, guide sleeves 31 are arranged in the guide holes, two guide rods 52 are fixed on the positioning plate 5, and the guide rods 52 penetrate through the guide sleeves 31 in an upward moving mode.

Limit structure includes that the polylith is fixed on mesa 2 and along stopper 8 of 4 outer borders settings of base plate, and 8 total stoppers in this embodiment correspond every side border of base plate and respectively are equipped with two stopper 8, and the interior terminal surface of each stopper 8 is equipped with the contact piece 81 with 4 outer borders direct contact of base plate, and contact piece 81 is supported by flexible material, prevents scratch base plate 4. A plurality of supporting cushion blocks 9 are fixed on the table top 2, each supporting cushion block 9 is positioned in a space enclosed by a plurality of limiting blocks 8 to support the bottom surface of the substrate 4, and the supporting cushion blocks 9 are also supported by flexible materials.

The positioning plate 5 is positioned above the base plate 4 constrained on the table board 2 and driven by a first air cylinder 6a arranged on the mounting plate 3 to vertically move up and down, one or more positioning through holes 51 for exposing welding positions between the bracket 7 and the base plate 4 are formed in the positioning plate 5, and a positioning structure for detachably positioning the bracket 7 is arranged in the positioning through holes 51.

The positioning structure comprises a positioning block 10 fixed in the positioning through hole 51, a magnet 11 used for adsorbing the support is arranged in the positioning block 10, and the support 7 is adsorbed on the positioning block 10 by the magnet 11. A positioning pin 101 for inserting into the mounting hole 71 of the bracket 7 is fixed to the positioning block 10. The positioning block 10 is fixed with a positioning post 102 inserted into the positioning notch 72 of the bracket 7. Different locating pins 101 are provided for different mounting configurations.

In a state where the positioning plate 5 is moved down to bring the bonding surface of the holder 7 into contact with the top surface of the substrate 4, the positioning plate 5 substantially or entirely shields the surface of the substrate 4, preferably, the surface of the substrate 4 is entirely shielded, and of course, the portion of the substrate 4 distant from the bonding position may not necessarily be shielded by the positioning plate 5.

One side of mesa 2 articulates on support body 1, and the bottom of support body 1 is equipped with the second cylinder 6b that is used for promoting mesa 2 upwards to overturn. The left side and the right side of the bottom of the table top 2 are respectively fixed with a guide block 12, the guide blocks 12 are provided with arc-shaped guide holes 121, and the upper part of the frame body 1 is fixed with guide columns 13 inserted into the guide holes 121. The bottom of support body 1 is fixed with cylinder block 14, and the bottom of mesa 2 is fixed with connecting rod 15, and the body bottom of second cylinder 6b articulates on cylinder block 14, and the piston rod of second cylinder 6b articulates the lower extreme at connecting rod 15.

The working principle and the process of the embodiment of the invention are as follows:

in an initial state, as shown in fig. 1 and 2, the first cylinder 10 is in an upward moving state, the positioning plate 5 is upward away from the table top 2, the substrate 4 is placed on the table top, and the substrate 4 is positioned on the table top 2 by the contact of the contact blocks 81 on the limiting blocks on the corresponding edges of the substrate 4. Then, the bracket 7 is attached to the positioning block 10 located in the positioning through hole 51, and the positioning pin 101 and the positioning column 102 on the positioning block 10 are used to realize the auxiliary positioning of the bracket 7 with respect to the positioning block 10. After completion of the operation, the first cylinder 10 operates to drive the positioning plate 5 to move down until the bonding surface of the support 7 contacts the top surface of the substrate 4, as shown in fig. 3 to 6. Then, the welding machine operates to weld the welding position between the bracket 7 and the base plate 4, at which the positioning penetration hole 51 is exposed. After welding, the first cylinder acts to drive the positioning plate 5 to move upwards, and the bracket 7 is automatically separated from the positioning structure when moving upwards due to the welding fixation of the bracket 7 and the base plate 4, so that the welded workpiece is taken out.

And (3) overturning welding: as shown in fig. 7, the piston rod of the second cylinder 6b extends outward to push the whole table top 2, the mounting plate 3, the positioning plate 5 and the first cylinder 6a to turn over at an angle, and the whole can be fixed at a certain angle due to the cylinder driving force, so that the angle is most suitable for welding.

Although preferred embodiments of the present invention have been described in detail hereinabove, it should be clearly understood that modifications and variations of the present invention are possible to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a with laser spot welding frock on scaffold weldment base plate which characterized in that: comprises that

The device comprises a frame body (1), wherein a table top (2) is arranged at the top of the frame body (1), an installation plate (3) is fixed on the table top (2), the installation plate (3) is positioned above the table top (2) and is vertically spaced from the table top (2), and a limiting structure used for limiting a substrate (4) on the table top (2) is arranged on the table top (2);

the positioning plate (5) is positioned above the base plate (4) constrained on the table board (2) and driven by a first air cylinder (6a) arranged on the mounting plate (3) to vertically move up and down, one or more positioning through holes (51) for exposing the welding position between the bracket (7) and the base plate (4) are formed in the positioning plate (5), and a positioning structure for detachably positioning the bracket (7) is arranged in each positioning through hole (51);

under the condition that the positioning plate (5) moves downwards to enable the welding surface of the bracket (7) to be in contact with the top surface of the substrate (4), the positioning plate (5) basically or completely shields the surface of the substrate (4);

one side edge of the table top (2) is hinged to the frame body (1), and a second cylinder (6b) used for pushing the table top (2) to turn upwards is arranged at the bottom of the frame body (1);

the left side and the right side of the bottom of the table top (2) are respectively fixed with a guide block (12), the guide blocks (12) are provided with arc-shaped guide holes (121), and the upper part of the frame body (1) is fixed with guide columns (13) inserted into the guide holes (121).

2. The laser spot welding tool for welding the bracket to the substrate according to claim 1, wherein: the limiting structure comprises a plurality of limiting blocks (8) which are fixed on the table board (2) and arranged along the outer edge of the substrate (4), and contact blocks (81) which are in direct contact with the outer edge of the substrate (4) are arranged on the inner end faces of the limiting blocks (8).

3. The laser spot welding tool for welding the bracket to the substrate according to claim 2, wherein: a plurality of supporting cushion blocks (9) are fixed on the table top (2), and each supporting cushion block (9) is positioned in a space surrounded by the limiting blocks (8) to support the bottom surface of the substrate (4).

4. The laser spot welding tool for welding the bracket to the substrate according to claim 1, wherein: the mounting plate (3) is provided with two guide holes, guide sleeves (31) are arranged in the guide holes, two guide rods (52) are fixed on the positioning plate (5), and the guide rods (52) move upwards to penetrate through the guide sleeves (31).

5. The laser spot welding tool for welding the bracket to the substrate according to claim 1, wherein: the positioning structure comprises a positioning block (10) fixed in a positioning through hole (51), a magnet (11) used for adsorbing the support is arranged in the positioning block (10), and the support (7) is adsorbed on the positioning block (10) by the magnet (11).

6. The laser spot welding tool for welding the bracket to the substrate according to claim 5, wherein: and a positioning pin (101) inserted into the mounting hole (71) of the bracket (7) is fixed on the positioning block (10).

7. The laser spot welding tool for welding the bracket to the substrate according to claim 5, wherein: and a positioning column (102) which is used for being inserted into the positioning notch (72) of the support (7) is fixed on the positioning block (10).

8. The laser spot welding tool for welding the bracket to the substrate according to claim 1, wherein: the bottom of the frame body (1) is fixedly provided with a cylinder seat (14), the bottom of the table top (2) is fixedly provided with a connecting rod (15), the bottom of the cylinder body of the second cylinder (6b) is hinged on the cylinder seat (14), and the piston rod of the second cylinder (6b) is hinged at the lower end of the connecting rod (15).