Synchronous welding device for multiple products

Abstract

The invention relates to the technical field of welding, in particular to a multi-class product synchronous welding device which comprises a lower die plate, an upper die plate and a telescopic part, the upper die plate is provided with pressing assemblies and welding assemblies, and the pressing assemblies and the welding assemblies are arranged in a one-to-one correspondence and adjacent mode; the lower edge of the pressing assembly is lower than the lower edge of the welding assembly so as to abut against a workpiece in advance. The pressing assembly comprises a fixing plate and a pressing plate which are arranged at intervals, and an elastic piece is connected between the fixing plate and the pressing plate. A hot riveting rod is arranged at the output end of the welding assembly, and a hot riveting head is eccentrically connected to the side, facing the bearing clamping fixture, of the hot riveting rod. The lower edge of the pressing assembly is lower than the lower edge of the welding assembly, a workpiece can be pressed and fixed before the welding assembly welds the workpiece, and therefore the stability of the welding assembly when the welding assembly welds the workpiece is guaranteed; the hot riveting head on the hot riveting rod is eccentrically arranged, so that contact between the hot riveting rod and the inner wall of the product can be avoided, and the product is prevented from being scratched.

Description

Technical Field

[0001] The present invention relates to the field of welding technology, in particular to a synchronous welding device for multiple categories of products. Background Art

[0002] The synchronous welding device for multiple categories of products is a kind of tooling that can be used to profile and fix multiple products. It can automatically complete the grabbing and matching organization through a manipulator or a robot, and cooperate with the welding tooling to complete the welding requirements of multiple parts in fixed positions. It can achieve synchronous welding of multiple products by making multiple non-similar base molds at the same time, which can save working hours; but in actual use, the welding head is limited by the uneven surface of the workpiece, and it is easy to drive the workpiece to move while the welding head is welding, which is not conducive to the accuracy of the welding position. Summary of the invention

[0003] In view of the problems in the prior art, the present invention provides a synchronous welding device for multiple categories of products, and the specific technical solutions are as follows:

[0004] A synchronous welding device for multiple categories of products, comprising a lower template, an upper template and a telescopic member, wherein the lower template and the upper template are arranged at intervals, the telescopic member is arranged between the lower template and the upper template to make the lower template and the upper template approach or move away from each other, and a bearing jig corresponding to the workpiece is installed on the end surface of the lower template facing the upper template;

[0005] The upper template is provided with a pressing assembly and a welding assembly, the pressing assembly and the welding assembly correspond to each other and are arranged closely, and the lower edge of the pressing assembly is lower than the lower edge of the welding assembly to pre-press the workpiece;

[0006] The pressing assembly comprises a fixed plate and a pressing plate arranged at intervals, and an elastic member is connected between the fixed plate and the pressing plate;

[0007] The output end of the welding assembly is provided with a hot riveting rod, and a hot riveting head is eccentrically connected to one side of the hot riveting rod facing the bearing jig.

[0008] As a further technical solution of the present invention, one end of the pressing plate away from the fixed plate is connected to a pressing head that contacts the workpiece, and the pressing surface of the pressing head matches the shape of the workpiece.

[0009] As a further technical solution of the present invention, the pressure plate is connected to a vertical plate at one end facing the fixed plate, the vertical plate has an outwardly protruding convex strip on the side facing the fixed plate, and a sliding sleeve is connected to the end surface of the fixed plate facing the vertical plate, and the sliding sleeve is slidably set on the convex strip.

[0010] As a further technical solution of the present invention, a hot template is arranged between the bearing mold and the upper template, a heat insulation column is connected between the hot template and the upper template, and the hot template is arranged at intervals from the upper template through the heat insulation column;

[0011] The pressing assembly and the welding assembly are both arranged on the hot template.

[0012] As a further technical solution of the present invention, the welding assembly includes a connecting rod and a hot riveting rod slidably connected to the connecting rod, a slideway is provided on the connecting rod along its trajectory, a sliding rod is connected to the end surface of the hot riveting rod facing the connecting rod, the other end of the sliding rod extends through the slideway and is connected to a nut, and the nut cooperates with the hot riveting rod to clamp the connecting rod to limit the relative movement between the two.

[0013] As a further technical solution of the present invention, a mounting hole is provided on the thermal template along the thickness direction thereof, and the welding assembly is mounted on the thermal template through the mounting hole;

[0014] The end of the connecting rod facing the hot template is connected to a screw corresponding to the mounting hole, and the screw is provided with clips and heads at intervals. The screw passes through the mounting hole and the clips and heads are distributed on both sides of the hot template to clamp the hot template, and the heads are rotationally connected to the screw.

[0015] As a further technical solution of the present invention, there is a gap in the cross section between the screw rod and the mounting hole.

[0016] As a further technical solution of the present invention, an air blowing pipe corresponding to the welding assembly is also installed on the hot template, and the output direction of the air blowing pipe is toward the contact surface between the welding assembly and the workpiece.

[0017] As a further technical solution of the present invention, a connector is installed on the end surface of the upper template facing the hot template. The connector has an input end and several output ends connected to the input end. The several output ends of the connector correspond to several blowing pipes respectively.

[0018] The beneficial effects of the present invention are as follows:

[0019] (1) In the present application, by setting a pressing assembly and making the lower edge of the pressing assembly lower than the lower edge of the welding assembly, the workpiece can be pressed and fixed before the welding assembly is welded to the workpiece, thereby ensuring the stability of the welding assembly when welding to the workpiece; and by using the eccentric arrangement of the hot rivet head on the hot rivet rod, contact between the hot rivet rod and the inner wall of the product can be avoided, thereby preventing the product from being scratched.

[0020] (2) In the present application, by making the length of the welding assembly adjustable, the distances between several welding assemblies and the welding points of the workpiece can be made the same, thereby performing synchronous welding and improving welding efficiency. At the same time, the connection between the welding assembly and the hot template can be fine-tuned, thereby changing the position of the welding assembly on the horizontal plane, so that the device can be suitable for products of different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The overall structural schematic diagram of the synchronous welding device for multiple categories of products is shown;

[0022] Figure 2 A schematic diagram of the structure of the thermal template and the thermal insulation column is shown;

[0023] Figure 3 A schematic diagram of the structure of the telescopic member is shown;

[0024] Figure 4 Shows a schematic structural diagram of a thermal template;

[0025] Figure 5 A schematic diagram of the structure of the pressing assembly is shown;

[0026] Figure 6 A schematic diagram of the structure of the welding assembly is shown.

[0027] Description of the drawings: 110, lower template; 111, bearing mold; 120, upper template; 130, telescopic member; 131, hydraulic rod; 132, butt; 133, gasket; 140, hot template; 141, mounting hole; 150, insulation column; 160, air blow pipe; 170, connector; 200, pressing assembly; 210, fixing plate; 211, sliding sleeve; 220, pressing plate; 221, pressing head; 230, elastic member; 240, vertical plate; 241, convex strip; 300, welding assembly; 310, connecting rod; 311, slideway; 320, hot riveting rod; 321, sliding rod; 322, nut; 330, hot riveting head; 340, screw; 341, clip; 342, head. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0029] Figure 1 The overall structural schematic diagram of the synchronous welding device for multiple categories of products is shown; Figure 1 In the figure, the synchronous welding device for multiple categories of products includes a lower template 110 and an upper template 120 arranged at intervals, a telescopic member 130 is connected between the lower template 110 and the upper template 120, and a bearing jig 111 corresponding to the workpiece is installed on the end face of the lower template 110 facing the upper template 120; the bearing jig 111 is prefabricated according to the shape of the workpiece and can completely match the shape of the workpiece, thereby fully supporting the workpiece, and the telescopic member 130 can be used to adjust the distance between the lower template 110 and the upper template 120, so that the upper template 120 is close to or away from the lower template 110.

[0030] Figure 3 A schematic structural diagram of the telescopic member 130 is shown; Figure 3In the embodiment, the telescopic member 130 includes a hydraulic rod 131 and a butt 132, the hydraulic rod 131 and the butt 132 are respectively connected to the lower template 110 and the upper template 120, the output end of the hydraulic rod 131 is connected to the butt 132, and a gasket 133 is provided between the hydraulic rod 131 and the butt 132; since the output end of the hydraulic rod 131 is connected to the butt 132, when the hydraulic rod 131 is started, it can drive the butt 132 to move closer or farther, thereby adjusting the distance between the lower template 110 and the upper template 120, and the provision of the gasket 133 can avoid rigid collision when the distance between the hydraulic rod 131 and the butt 132 reaches the minimum, which is beneficial to the service life. It should be noted that in this embodiment, Figure 3 1 shows a connection mode in which the hydraulic rod 131 is installed on the upper template 120 and the abutment 132 is installed on the lower template 110, but the positions of the hydraulic rod 131 and the abutment 132 can also be reversed, which is not a limitation.

[0031] Figure 2 A schematic diagram of the structure of the thermal template 140 and the thermal insulation column 150 is shown; Figure 2 In the figure, a hot template 140 is arranged between the supporting mold 111 and the upper template 120, and an insulating column 150 is connected between the hot template 140 and the upper template 120, and the hot template 140 is arranged at a distance from the upper template 120 through the insulating column 150; the hot template 140 is used as a supporting part of the welding device to avoid heat conduction to the upper template 120, thereby achieving control of heat distribution; a connector 170 is installed on the end face of the upper template 120 facing the hot template 140, and the connector 170 has an input end and a plurality of output ends connected to the input end; that is, after the medium enters from the output end, it can be evenly dispersed and discharged from the plurality of output ends to achieve interconnection.

[0032] Figure 4 A schematic diagram of the structure of the thermal template 140 is shown; Figure 4In the embodiment, a pressing assembly 200 and a welding assembly 300 are installed on the end surface of the hot template 140 facing the bearing mold 111. The pressing assembly 200 and the welding assembly 300 correspond to each other and are arranged closely. The lower edge of the pressing assembly 200 is lower than the lower edge of the welding assembly 300 to pre-press the workpiece. The pressing assembly 200 can be used to press the workpiece before the welding assembly 300, so that the workpiece can be pressed and fixed before contacting the pressing assembly 200, avoiding deviation and ensuring the accuracy of the welding position. The hot template 140 is also equipped with a corresponding welding assembly 300. The blow pipe 160 has an output direction toward the contact surface between the welding assembly 300 and the workpiece, and the output ends of the coupler 170 correspond to the blow pipes 160 respectively; the blow pipe 160 can be used to cool the welding point in time, so that the cooling time after welding is shortened, the welding cycle is shortened, and the welding point is more beautiful. The coupler 170 is used to interconnect the blow pipes 160; a mounting hole 141 is provided on the hot template 140 along the thickness direction to penetrate the hot template 140, and the welding assembly 300 is installed on the hot template 140 through the mounting hole 141.

[0033] Figure 5 A schematic diagram of the structure of the pressing assembly 200 is shown; Figure 5 In the embodiment, the pressing assembly 200 includes a fixed plate 210 and a pressing plate 220 arranged at intervals, an elastic member 230 is connected between the fixed plate 210 and the pressing plate 220, an end of the pressing plate 220 away from the fixed plate 210 is connected to a pressing head 221 that contacts the workpiece, and an end of the pressing plate 220 facing the fixed plate 210 is connected to a vertical plate 240, and a side of the vertical plate 240 facing the fixed plate 210 has an outwardly protruding convex strip 241, and a sliding sleeve 211 is connected to the end surface of the fixed plate 210 facing the vertical plate 240, and the sliding sleeve 211 is slidably arranged on the convex strip 241; since the fixed plate 210 and the pressing plate 220 are connected at intervals by the elastic member 230 Therefore, when the pressure plate 220 is pre-pressed against the workpiece, the deformation of the elastic member 230 can be used as a space for the fixed plate 210 to continue to descend, and as the fixed plate 210 continues to descend, the space between the fixed plate 210 and the pressure plate 220 becomes smaller, the deformation of the elastic member 230 becomes larger, and the corresponding elastic force becomes larger, thereby continuously increasing the pressing force on the workpiece, and the pressure head 221 is arranged on the end face of the pressure plate 220 facing the workpiece, which is consistent with the end face of the workpiece to ensure the contact area, and at the same time, the relative sliding arrangement of the sleeve 211 and the convex strip 241 can further ensure the stability of the fixed plate 210 and the pressure plate 220 during relative movement.

[0034] Figure 6 A schematic structural diagram of a welding assembly 300 is shown; Figure 6In the embodiment, the welding assembly 300 includes a connecting rod 310 and a hot rivet rod 320 slidably connected to the connecting rod 310. A hot rivet head 330 is eccentrically arranged at the bottom of the hot rivet rod 320. A slideway 311 is provided on the connecting rod 310 along its track. A slide bar 321 is connected to the end surface of the hot rivet rod 320 facing the connecting rod 310. The other end of the slide bar 321 extends through the slideway 311 and is connected to a nut 322. The nut 322 cooperates with the hot rivet rod 320 to clamp the connecting rod 310 to limit the relative movement of the two. In other words, the welding assembly The overall length of the component 300 can be adjusted. By screwing the nut 322 to disengage the nut 322 from the connecting rod 310, the hot rivet rod 320 can be driven to slide along the track of the slideway 311. The two can make relative displacement. After adjustment, the nut 322 is screwed again to make it cooperate with the hot rivet rod 320 to contact and clamp the connecting rod 310. At this time, the connecting rod 310 and the hot rivet rod 320 are relatively locked, and the length adjustment of the welding assembly 300 is completed. Since the welding rib of the product is relatively close to the inner wall of the product, the hot rivet rod 320 is easy to move when the hot rivet head 330 is centered for welding. The inner wall of the product is scratched, so the hot rivet head 330 is designed to be an eccentric structure to avoid interference; the end of the connecting rod 310 facing the hot template 140 is connected to a screw 340 corresponding to the mounting hole 141, and the screw 340 is provided with clips 341 and heads 342 at intervals. The screw 340 passes through the mounting hole 141 and the clips 341 and the heads 342 are distributed on both sides of the hot template 140 to clamp the hot template 140. The heads 342 are rotatably connected to the screw 340, and the cross-section of the screw 340 and the mounting hole 141 is The hot template 140 can be clamped by the clip 341 and the head 342, so that the welding assembly 300 is connected to the hot template 140 as a whole, and at the same time, the head 342 is rotatably connected to the screw 340 and can be screwed off to separate the welding assembly 300 from the hot template 140, which is convenient for disassembly and maintenance. In addition, since there is a gap on the cross section of the screw 340 and the mounting hole 141, the welding assembly 300 can be horizontally moved in the mounting hole 141 during installation to achieve fine adjustment, thereby increasing the applicability of the device.

[0035] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. A synchronous welding device for multiple categories of products, comprising a lower template (110), an upper template (120) and a telescopic member (130), wherein the lower template (110) and the upper template (120) are arranged at intervals, the telescopic member (130) is arranged between the lower template (110) and the upper template (120) to make the lower template (110) and the upper template (120) approach or move away from each other, and a bearing jig (111) corresponding to a workpiece is installed on the end surface of the lower template (110) facing the upper template (120); It is characterized in that The upper template (120) is provided with a pressing assembly (200) and a welding assembly (300), the pressing assembly (200) and the welding assembly (300) correspond to each other and are arranged closely together, and the lower edge of the pressing assembly (200) is lower than the lower edge of the welding assembly (300) so as to pre-press the workpiece; The pressing assembly (200) comprises a fixed plate (210) and a pressing plate (220) arranged at intervals, and an elastic member (230) is connected between the fixed plate (210) and the pressing plate (220); The output end of the welding assembly (300) is provided with a hot riveting rod (320), and the hot riveting rod (320) is eccentrically connected to a hot riveting head (330) on one side facing the supporting jig (111).

2. The synchronous welding device for multiple categories of products according to claim 1 is characterized in that: One end of the pressing plate (220) facing away from the fixing plate (210) is connected to a pressing head (221) for contacting the workpiece, and the pressing surface of the pressing head (221) matches the shape of the workpiece.

3. The synchronous welding device for multiple categories of products according to claim 2 is characterized in that: One end of the pressure plate (220) facing the fixed plate (210) is connected to a vertical plate (240), and the side of the vertical plate (240) facing the fixed plate (210) has an outwardly protruding convex strip (241). The end surface of the fixed plate (210) facing the vertical plate (240) is connected to a sliding sleeve (211), and the sliding sleeve (211) is slidably arranged on the convex strip (241).

4. The synchronous welding device for multiple categories of products according to claim 3 is characterized in that: A hot plate (140) is arranged between the bearing mold (111) and the upper plate (120), a heat insulation column (150) is connected between the hot plate (140) and the upper plate (120), and the hot plate (140) is arranged at intervals from the upper plate (120) via the heat insulation column (150); The pressing assembly (200) and the welding assembly (300) are both arranged on a hot plate (140).

5. The synchronous welding device for multiple categories of products according to claim 4 is characterized in that: The welding assembly (300) comprises a connecting rod (310) and a hot riveting rod (320) slidably connected to the connecting rod (310); a slideway (311) is provided on the connecting rod (310) along its track; a sliding rod (321) is connected to the end surface of the hot riveting rod (320) facing the connecting rod (310); the other end of the sliding rod (321) extends through the slideway (311) and is connected to a nut (322); the nut (322) cooperates with the hot riveting rod (320) to clamp the connecting rod (310) to limit the relative movement of the two.

6. The synchronous welding device for multiple categories of products according to claim 5, characterized in that: The thermal template (140) is provided with a mounting hole (141) penetrating the thermal template (140) along the thickness direction, and the welding assembly (300) is mounted on the thermal template (140) through the mounting hole (141); One end of the connecting rod (310) facing the thermal template (140) is connected to a screw rod (340) corresponding to the mounting hole (141); clips (341) and heads (342) are arranged at intervals on the screw rod (340); the screw rod (340) passes through the mounting hole (141) and the clips (341) and the heads (342) are distributed on both sides of the thermal template (140) to clamp the thermal template (140); the heads (342) are rotationally connected to the heads (342) and the screw rod (340).

7. The synchronous welding device for multiple categories of products according to claim 6, characterized in that: There is a gap in the cross section between the screw rod (340) and the mounting hole (141).

8. The synchronous welding device for multiple categories of products according to claim 7, characterized in that: An air blowing pipe (160) corresponding to the welding assembly (300) is also installed on the hot template (140), and the output direction of the air blowing pipe (160) is toward the contact surface between the welding assembly (300) and the workpiece.

9. The synchronous welding device for multiple categories of products according to claim 8, characterized in that: A connector (170) is installed on the end surface of the upper template (120) facing the hot template (140), and the connector (170) has an input end and a plurality of output ends connected to the input end, and the plurality of output ends of the connector (170) respectively correspond to a plurality of blowing pipes (160).

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