Double strip automatic welding equipment

Abstract

The present invention discloses a double-strip automatic welding device, comprising a machine platform and a first material pulling device, a second material pulling device, a welding device, a welding jig and a cutting device arranged on the machine platform, the welding device cooperates with the welding jig, the welding jig comprises an upper mold and a lower mold that cooperate with each other, the cutting device cooperates with the lower mold, the lower mold comprises a turntable, a turntable rotation drive mechanism and a turntable lifting drive mechanism, the turntable is installed on the turntable rotation drive mechanism, and the turntable lifting drive mechanism is installed on the outer periphery of the turntable rotation drive mechanism. The welding equipment of the present invention can continuously carry out automated production, save production manpower, and improve production efficiency and yield.

Description

Technical Field

[0001] The invention relates to the field of welding equipment, and in particular to double-strip automatic welding equipment. Background Art

[0002] 3C products have emerged in recent years along with the development of the electronics industry. They mainly refer to computer, communication, and consumer electronic products. In this industry, technology is developing at a rapid pace, with frequent upgrades and replacements. A large number of new products are launched almost every month, which has become a hot area in product design.

[0003] At present, there is a special 3C industry for 3C products. 3C products are generally formed by assembling a large number of parts, and welding is one of the indispensable processes in manufacturing these 3C product parts.

[0004] For individual products in the 3C field, customers require that there should not be any connecting points. The existing production process is: manually placing individual products into the welding mold, and then using a turntable to perform welding operations. The existing process cannot achieve automatic welding of double strips. The products produced by this method are scattered, thin, and easy to deform. In addition, it requires a lot of people and has low efficiency. Therefore, the existing production method is not suitable for the requirements of modern production. Summary of the invention

[0005] The purpose of the present invention is to provide a double-strip automatic welding device that can realize online production, save manpower, improve efficiency and yield, and facilitate production control, which can at least solve one of the above problems.

[0006] According to one aspect of the present invention, there is provided a double-strip automatic welding device, comprising a machine platform and a first material pulling device, a second material pulling device, a welding device, a welding jig and a cutting device arranged on the machine platform, the welding device cooperates with the welding jig, the welding jig comprises an upper mold and a lower mold that cooperate with each other, the cutting device cooperates with the lower mold, the lower mold comprises a turntable, a turntable rotation drive mechanism and a turntable lifting drive mechanism, the turntable is installed on the turntable rotation drive mechanism, and the turntable lifting drive mechanism is installed on the outer periphery of the turntable rotation drive mechanism;

[0007] The first material pulling device is configured to convey a first material strip;

[0008] The second material pulling device is configured to convey the second material strip;

[0009] The cutting device is configured to cut the second material strip so that the second workpiece on the second material strip falls into the turntable;

[0010] The turntable rotation drive mechanism is configured to drive the turntable to rotate so that the second workpiece on the turntable is transferred to just below the upper mold;

[0011] The turntable lifting drive mechanism is configured to lift the turntable upward so that the second workpiece on the turntable fits with the first material strip;

[0012] The welding device is configured to weld the first material strip and the second workpiece so that the second workpiece is welded below the first material strip.

[0013] Therefore, the working principle of the double-strip automatic welding equipment of the present invention is as follows: the double-strip of the present invention is a cross-feeding method, the first pulling device drives the first strip to move between the upper mold and the lower mold of the welding fixture, the second pulling device drives the second strip to move below the cutting mold of the cutting device, under the action of the cutting device, the second workpiece on the second strip is cut off and falls directly onto the turntable, the turntable rotation drive mechanism drives the turntable to rotate, so that the second workpiece on the turntable is transferred to the bottom of the upper mold, the turntable lifting drive mechanism lifts the turntable upward, so that the second workpiece on the turntable fits the first strip, the welding device starts welding, and welds the second workpiece to the first strip, and this cycle is repeated. The welding equipment of the present invention can continuously carry out automated production, save production manpower, and improve production efficiency and yield.

[0014] In some embodiments, the lower mold further includes a workpiece-carrying mold disposed above the turntable, and the workpiece-carrying mold is provided with a positioning member that matches the second workpiece. Thus, the workpiece-carrying mold can effectively limit the second workpiece that falls into the mold, facilitating efficient subsequent work.

[0015] In some embodiments, there are multiple workpiece-carrying dies, thereby improving production efficiency.

[0016] In some embodiments, there are four workpiece-carrying molds, and the four workpiece-carrying molds are distributed in a "cross" shape, wherein the length directions of two workpiece-carrying molds are the same as the transport direction of the first material belt, and the length directions of the other two workpiece-carrying molds are the same as the transport direction of the second material belt.

[0017] In some embodiments, the welding device includes a welding lens and a lifting adjustment mechanism, the welding lens is located directly above the upper mold, the welding lens emits a light path downward, acting on the first material strip between the upper mold and the lower mold, the lifting adjustment mechanism is installed on the machine, the welding lens is installed on the lifting adjustment mechanism, and the lifting adjustment mechanism is used to adjust the distance between the welding lens and the welding fixture. Therefore, the welding device of the present invention can perform multiple variable distance adjustments according to the welding range of the product.

[0018] In some embodiments, there are two welding devices, so that each time a welding operation is performed, the second workpiece on the two workpiece-carrying molds can be welded to the first material belt at the same time, and the production efficiency is high.

[0019] In some embodiments, the lifting and lowering adjustment mechanism includes a screw nut assembly, a slider, a guide bar, and a second drive member, the guide bar is a hollow structure, the screw nut assembly is installed inside the guide bar, the screw nut assembly includes a screw and a nut, the screw is rotatably installed on the guide bar, the nut is sleeved on the outer periphery of the screw, the welding lens is installed on the slider, the slider is fixedly connected to the nut, the slider and the guide bar are slidably matched, the second drive member is installed on the guide bar and the driving end is dynamically connected to the screw. Therefore, the working principle of the lifting and lowering adjustment mechanism is as follows: the second drive member drives the screw to rotate, drives the nut sleeved on the outer periphery of the screw to rotate, drives the slider and the welding lens installed on the slider to slide up and down along the guide bar, thereby realizing the position adjustment of the welding lens, that is, realizing the focal length adjustment.

[0020] In some embodiments, the second driving member is an adjustment handle or a servo motor. Therefore, when the second driving member is an adjustment handle, the welding lens focal length is adjusted manually; when the second driving member is a servo motor, the welding lens focal length is adjusted electrically or automatically.

[0021] In some embodiments, the dual-strip automatic welding equipment further includes a first material guide device disposed on the machine platform, and the first material guide device cooperates with the first material pulling device. Thus, under the action of the first material pulling device, the product material strip first passes through the first material guide device into the welding fixture, and then moves to the welding position directly below the welding lens. The cooperation between the first material guide device and the first material pulling device can smoothly realize the feeding and unloading of the first material strip.

[0022] In some embodiments, the double-strip automatic welding equipment further includes a second material guiding device disposed on the machine platform, and the second material guiding device cooperates with the second material pulling device. Thus, under the action of the second material pulling device, the second material strip first passes through the second material guiding device and enters the cutting device, and then the empty material strip is output from the second material pulling device. The cooperation between the second material guiding device and the second material pulling device can smoothly realize the feeding and unloading of the second material strip.

[0023] In some embodiments, the double-strip automatic welding device further includes a controller, which is connected to the first material pulling device, the second material pulling device, the welding device, the welding fixture, and the cutting device, and is used to control the operation of each device. Therefore, the controller of the present invention can be a PLC, and the PLC controller can flexibly adjust the welding time and the speed of the material strip forward, so that they cooperate with each other and efficiently complete the welding work.

[0024] Beneficial effects of the present invention:

[0025] The working principle of the double-strip automatic welding equipment of the present invention is as follows: the double-strip of the present invention is a cross-feeding method, the first pulling device drives the first strip to move between the upper mold and the lower mold of the welding fixture, the second pulling device drives the second strip to move below the cutting mold of the cutting device, under the action of the cutting device, the second workpiece on the second strip is cut off and falls directly onto the turntable, the turntable rotation drive mechanism drives the turntable to rotate, so that the second workpiece on the turntable is transferred to the bottom of the upper mold, the turntable lifting drive mechanism lifts the turntable upward, so that the second workpiece on the turntable fits the first strip, the welding device starts welding, and welds the second workpiece to the first strip, and this cycle is repeated. The welding equipment of the present invention can continuously carry out automated production, save production manpower, and improve production efficiency and yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is one of the three-dimensional structural schematic diagrams of a double-strip automatic welding device according to one embodiment of the present invention;

[0027] Figure 2 for Figure 1 The three-dimensional structural diagram of the double-strip automatic welding equipment without the machine table is shown;

[0028] Figure 3 for Figure 2 One of the simplified three-dimensional structural schematic diagrams of the double-strip automatic welding equipment without the welding device shown;

[0029] Figure 4 for Figure 2 The simplified three-dimensional structural schematic diagram of the double-strip automatic welding equipment without the welding device is shown as the second one;

[0030] Figure 5 for Figure 4 The schematic diagram of the three-dimensional structure of the double-strip automatic welding equipment is further simplified;

[0031] Figure 6 for Figure 1 The three-dimensional structural schematic diagram of the welding device of the double-strip automatic welding equipment shown;

[0032] Figure 7 It is a top perspective structural schematic diagram of the working process of the double-strip automatic welding equipment according to one embodiment of the present invention;

[0033] Figure 8 for Figure 7 An enlarged structural schematic diagram of a double-strip automatic welding device at A shown;

[0034] Fig. 9 for Figure 7 The enlarged structural schematic diagram of point B of the double-strip automatic welding equipment is shown.

[0035] Figures 1 to 9 The figure marks in it are: 1-machine table; 2-first material pulling device; 3-second material pulling device; 4-welding device; 5-welding fixture; 6-cutting device; 7-first material guiding device; 8-second material guiding device; 9-first material belt; 10-second material belt; 11-first workpiece; 12-second workpiece; 41-welding lens; 42-lifting and lowering adjustment mechanism; 51-upper mold; 52-lower mold; 421-slider; 422-guide bar; 423-second driving member; 521-turntable; 522-turntable rotation driving mechanism; 523-turntable lifting driving mechanism; 524-workpiece bearing mold; 524a-positioning member. DETAILED DESCRIPTION

[0036] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0037] Figures 1 to 9 A double-strip automatic welding device according to an embodiment of the present invention is schematically shown.

[0038] like Figures 1 to 9 As shown, the double-strip automatic welding equipment includes a machine 1 and a first material pulling device 2, a second material pulling device 3, a welding device 4, a welding jig 5 and a cutting device 6 installed on the machine 1. The welding device 4 cooperates with the welding jig 5. The welding jig 5 includes an upper mold 51 and a lower mold 52 that cooperate with each other, and the cutting device 6 cooperates with the lower mold 52.

[0039] The lower mold 52 includes a turntable 521, a turntable rotation drive mechanism 522, and a turntable lifting drive mechanism 523. The turntable 521 is mounted on the turntable rotation drive mechanism 522, and the turntable lifting drive mechanism 523 is mounted on the outer periphery of the turntable rotation drive mechanism 522.

[0040] The turntable rotation drive mechanism 522 of this embodiment can be a combination of a GSN series hollow rotating platform (for example, GSN200-10K / 18K-SV) produced by Guangdong Jijia Precision Technology Co., Ltd. and a servo motor, etc. The bottom of the turntable 521 is mounted on the hollow rotating platform.

[0041] The turntable lifting drive mechanism 523 of this embodiment can be composed of multiple lifting cylinders and a lifting plate installed on the upper end of the lifting cylinder. The lifting plate is fixedly connected to the bottom of the turntable 521 by bolts, etc. The lifting cylinder drives the lifting plate to rise, thereby lifting the turntable 521 upward.

[0042] The first material pulling device 2 is configured to convey a first material strip 9;

[0043] The second material pulling device 3 is configured to convey the second material strip 10;

[0044] The cutting device 6 is configured to cut the second material strip 10 so that the second workpiece 12 on the second material strip 10 falls into the turntable 521 ;

[0045] The turntable rotation driving mechanism 522 is configured to drive the turntable 521 to rotate, so that the second workpiece 12 on the turntable 521 is transferred to the bottom of the upper mold 51;

[0046] The turntable lifting drive mechanism 523 is configured to lift the turntable 521 upward so that the second workpiece 12 on the turntable 521 fits with the first material belt 9;

[0047] The welding device 4 is configured to weld the first material strip 9 and the second workpiece 12 , so that the second workpiece 12 is welded below the first material strip 9 .

[0048] The lower mold 52 also includes a workpiece-carrying mold 524 disposed above the turntable 521, and the workpiece-carrying mold 524 is provided with a positioning member 524a that matches the second workpiece 12. Thus, the workpiece-carrying mold 524 can effectively limit the second workpiece 12 that falls into the mold, facilitating efficient subsequent work.

[0049] like Figure 5 As shown, there are multiple workpiece bearing molds 524. In this embodiment, there are four workpiece bearing molds 524, which are distributed in a "cross" shape, wherein the length direction of two workpiece bearing molds 524 is the same as the transport direction of the first material belt 9, and the length direction of the other two workpiece bearing molds 524 is the same as the transport direction of the second material belt 10.

[0050] like Figure 1 and Figure 2 As shown, there are two welding devices 4 in this embodiment. Therefore, each time a welding operation is performed, the second workpieces 12 on the two workpiece carrying molds 524 can be welded to the first material belt 9 at the same time, and the production efficiency is high.

[0051] The welding device 4 of this embodiment includes a welding lens 41 and a lifting adjustment mechanism 42. The welding lens 41 is located directly above the upper mold 51, and the welding lens 41 emits a light path downward to act on the first material strip 9 between the upper mold 51 and the lower mold 52. The lifting adjustment mechanism 42 is installed on the machine 1, and the welding lens 41 is installed on the lifting adjustment mechanism 42. The lifting adjustment mechanism 42 is used to adjust the distance between the welding lens 41 and the welding fixture 5. Therefore, the welding device 4 of the present invention can be adjusted in multiple variable distances according to the welding range of the product.

[0052] The lifting and lowering adjustment mechanism 42 of this embodiment includes a screw nut assembly, a slider 421, a guide bar 422 and a second driving member 423. The guide bar 422 is a hollow structure, and the screw nut assembly is installed inside the guide bar 422. The screw nut assembly includes a screw and a nut. The screw is rotatably installed on the guide bar 422, and the nut is sleeved on the outer periphery of the screw. The welding lens 41 is installed on the slider 421, and the slider 421 is fixedly connected to the nut. The slider 421 is sleeved on the guide bar 422 and slidably cooperates with the guide bar 422. The second driving member 423 is installed on the guide bar 422 and the driving end is connected to the screw power. Therefore, the working principle of the lifting and lowering adjustment mechanism 42 is: the second driving member 423 drives the screw to rotate, drives the nut sleeved on the outer periphery of the screw to rotate, drives the slider 421 and the welding lens 41 installed on the slider 421 to slide up and down along the guide bar 422, thereby realizing the position adjustment of the welding lens 41, that is, realizing the focal length adjustment.

[0053] The second driving member 423 is an adjustment handle or a servo motor. Therefore, when the second driving member 423 is an adjustment handle, the focal length of the welding lens 41 is adjusted manually; when the second driving member 423 is a servo motor, the focal length of the welding lens 41 is adjusted electrically or automatically. The second driving member 423 of this embodiment is a handle.

[0054] like Figures 3-4 As shown, the cutting device 6 of this embodiment is a cutting jig commonly used in the market for cutting, and the specific structure is: the cutting device 6 includes a cutting upper die, a cutting lower die, a mounting frame and a first driving member. The mounting frame is installed on the machine table 1, and the cutting upper die cooperates with the cutting lower die and is both installed on the mounting frame. The second material strip 10 is transferred to between the cutting upper die and the cutting lower die under the action of the second pulling device 3 and the second material guiding device 8. The first driving member is installed on the top of the mounting frame and the driving end is connected to the cutting upper die, which is used to drive the cutting upper die to press down. An opening that cooperates with the workpiece-bearing die 524 below is provided on the cutting lower die, and the second workpiece 12 after cutting will fall into the workpiece-bearing die 524 from the opening. The first driving member of this embodiment can be a telescopic cylinder. Therefore, the function of the cutting device 6 of the present invention is to cut the second material strip 10.

[0055] The double-strip automatic welding equipment also includes a first material guide device 7 arranged on the machine 1, and the first material guide device 7 cooperates with the first material pulling device 2. The first material pulling device 2 of this embodiment can be a commonly used material puller on the market, which can cooperate with sensors and the like to realize the precise transmission function of the first material strip 9. The first guide wheel device can be a material guide plate. Thus, under the action of the first material pulling device 2, the product material strip first passes through the first material guide device 7 to enter the welding fixture 5, and then moves to the welding position directly below the welding lens 41. The cooperation between the first material guide device 7 and the first material pulling device 2 can smoothly realize the feeding and unloading of the first material strip 9.

[0056] The double-strip automatic welding equipment also includes a second material guide device 8 arranged on the machine 1, and the second material guide device 8 cooperates with the second material pulling device 3. The second material pulling device 3 of this embodiment can be a commonly used material puller on the market, which can cooperate with sensors and the like to realize the precise transmission function of the second material strip 10. The second guide wheel device of this embodiment can be a material guide plate. Therefore, under the action of the second material pulling device 3, the second material strip 10 first passes through the second material guide device 8 to enter the cutting device 6, and then the empty material strip is output from the second material pulling device 3. The cooperation between the second material guide device 8 and the second material pulling device 3 can smoothly realize the feeding and unloading of the second material strip 10.

[0057] The double-strip automatic welding equipment also includes a controller, which is connected to the first material pulling device 2, the second material pulling device 3, the welding device 4, the welding fixture 5 and the cutting device 6, and is used to control the operation of each device. Therefore, the controller of the present invention can be a PLC, and the PLC controller can flexibly adjust the welding time and the speed of the material strip forward, so that they cooperate with each other and efficiently complete the welding work.

[0058] The working principle of the double-strip automatic welding equipment of this embodiment is:

[0059] The double material belt of the present invention adopts a cross feeding method. The first pulling device 2 drives the first material belt 9 to move between the upper mold 51 and the lower mold 52 of the welding fixture 5. The second pulling device 3 drives the second material belt 10 to move between the upper and lower cutting molds of the cutting device 6. Under the action of the cutting device 6, the second workpiece 12 on the second material belt 10 is cut off and falls directly onto the workpiece carrying mold 524 above the turntable 521. The turntable rotation drive mechanism 522 drives the turntable 521 to rotate, so that the second workpiece 12 on the turntable 521 is transferred to the bottom of the upper mold 51. The turntable lifting drive mechanism 523 lifts the turntable 521 upward, so that the second workpiece 12 on the turntable 521 is fitted with the first material belt 9. The two welding devices 4 start welding operations at the same time, and weld the second workpieces 12 on the two workpiece carrying molds 524 to the first material belt 9, and this cycle is repeated.

[0060] The welding equipment of the present invention can continuously carry out automated production, save production manpower, and improve production efficiency and yield.

[0061] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. Double-strip automatic welding equipment, characterized in that: The invention comprises a machine platform (1), and a first material pulling device (2), a second material pulling device (3), a welding device (4), a welding jig (5) and a cutting device (6) arranged on the machine platform (1); the welding device (4) cooperates with the welding jig (5); the welding jig (5) comprises an upper mold (51) and a lower mold (52) which cooperate with each other; the cutting device (6) cooperates with the lower mold (52); the lower mold (52) comprises a turntable (521), a turntable rotation drive mechanism (522) and a turntable lifting drive mechanism (523); the turntable (521) is installed on the turntable rotation drive mechanism (522); and the turntable lifting drive mechanism (523) is installed on the outer periphery of the turntable rotation drive mechanism (522); The first material pulling device (2) is configured to convey a first material strip (9); The second material pulling device (3) is configured to convey a second material strip (10); The cutting device (6) is configured to cut the second material strip (10) so that the second workpiece (12) on the second material strip (10) falls into the turntable (521); The turntable rotation drive mechanism (522) is configured to drive the turntable (521) to rotate, so that the second workpiece (12) on the turntable (521) is transferred to the position directly below the upper mold (51); The turntable lifting drive mechanism (523) is configured to lift the turntable (521) upward so that the second workpiece (12) on the turntable (521) is fitted with the first material belt (9); The welding device (4) is configured to weld the first material strip (9) and the second workpiece (12), so that the second workpiece (12) is welded below the first material strip (9); The lower mold (52) further comprises a workpiece-carrying mold (524) arranged above the turntable (521), and a positioning piece (524a) matching with the second workpiece (12) is provided on the workpiece-carrying mold (524); The workpiece-carrying mold (524) is multiple; There are four workpiece-carrying dies (524), and the four workpiece-carrying dies (524) are distributed in a "cross" shape, wherein the length directions of two of the workpiece-carrying dies (524) are the same as the transport direction of the first material belt (9), and the length directions of the other two of the workpiece-carrying dies (524) are the same as the transport direction of the second material belt (10); The welding device (4) comprises a welding lens (41) and a lifting and adjusting mechanism (42); the welding lens (41) is located directly above the upper mold (51); the welding lens (41) emits a light path downward to act on the first material strip (9) between the upper mold (51) and the lower mold (52); the lifting and adjusting mechanism (42) is installed on the machine platform (1); the welding lens (41) is installed on the lifting and adjusting mechanism (42); and the lifting and adjusting mechanism (42) is used to adjust the distance between the welding lens (41) and the welding jig (5); There are two welding devices (4).

2. The double-strip automatic welding equipment according to claim 1, characterized in that: The lifting and lowering adjustment mechanism (42) comprises a screw nut assembly, a slider (421), a guide bar (422) and a second driving member (423); the guide bar (422) is a hollow structure; the screw nut assembly is installed inside the guide bar (422); the screw nut assembly comprises a screw and a nut; the screw is rotatably installed on the guide bar (422); the nut is sleeved on the outer periphery of the screw; the welding lens (41) is installed on the slider (421); the slider (421) is fixedly connected to the nut; the slider (421) is slidably matched with the guide bar (422); the second driving member (423) is installed on the guide bar (422) and the driving end is dynamically connected to the screw.

3. The double-strip automatic welding equipment according to any one of claims 1 to 2, characterized in that: It also comprises a first material guiding device (7) arranged on the machine platform (1), wherein the first material guiding device (7) cooperates with the first material pulling device (2).

4. The double-strip automatic welding equipment according to any one of claims 1 to 2, characterized in that: It also comprises a second material guiding device (8) arranged on the machine platform (1), wherein the second material guiding device (8) cooperates with the second material pulling device (3).

5. The double-strip automatic welding equipment according to any one of claims 1 to 2, characterized in that: It also includes a controller, which is connected to the first material pulling device (2), the second material pulling device (3), the welding device (4), the welding fixture (5) and the cutting device (6) and is used to control the operation of each device.

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