Material belt assembly welding equipment and using method thereof

Abstract

The invention provides a material belt assembly welding device and a using method thereof, and the material belt assembly welding device comprises a rotary disc, a plurality of feeding lower dies, a plurality of feeding lower dies and a plurality of feeding lower dies, the rack comprises a top plate, and a welding upper die is arranged on the top plate; the lower feeding die comprises a first die plate, a second die plate and a third die plate which are sequentially arranged from top to bottom in the longitudinal direction, and the second die plate is provided with a first positioning pin corresponding to the first positioning hole and a second positioning pin corresponding to the second positioning hole. The second die plate can move in the longitudinal direction to drive the first positioning pin and the second positioning pin to penetrate through the first die plate to be positioned or separated from the material belt assembly, and the lower feeding die can move in the longitudinal direction to be close to or away from the upper welding die. And the pre-welding material belt is positioned between the first template and the welding upper die. The first mold plate is matched with the welding upper mold, so that the material belt assembly is not greatly deformed in the longitudinal direction in the process that the positioning needles are separated from the positioning holes, and the needle clamping phenomenon is avoided.

Description

Technical Field

[0001] The present invention relates to the field of welding technology, and in particular to a material strip assembly welding device and a use method thereof. Background Art

[0002] A certain type of strip assembly includes a grinding piece and a pre-welding strip. The grinding piece and the pre-welding strip are welded to form the strip assembly. Fig.13 As shown, the grinding piece b is provided with a first positioning hole b1, and the pre-welding material strip a is provided with a second positioning hole a1. During the welding process, the grinding piece b and the pre-welding material strip a are positioned and assembled by means of positioning pins arranged on the welding fixture. In order to ensure the positioning effect of the grinding piece b and the pre-welding material strip a, a plurality of positioning holes are usually arranged on the grinding piece b and the pre-welding material strip a. Accordingly, a plurality of positioning pins corresponding to the plurality of positioning holes are also arranged on the welding fixture. In addition, the positioning holes on the grinding piece b and the pre-welding material strip a inevitably have errors in manufacturing, so the positioning of the plurality of positioning pins and the plurality of positioning holes is over-constrained positioning; at the same time, due to the poor rigidity of the material strip assembly c, after the grinding piece b and the pre-welding material strip a are welded to form the material strip assembly c, the positioning pins are prone to get stuck when they are withdrawn from the positioning holes, which affects the production efficiency. Summary of the invention

[0003] In view of the deficiencies of the prior art, an object of the present invention is to provide a strip assembly welding device which can avoid pin jamming and ensure production efficiency.

[0004] Another object of the present invention is to provide a method for using a strip assembly welding device, which can avoid needle jamming, reduce the probability of positioning needle damage, and ensure production efficiency.

[0005] The embodiments of the present invention are implemented by the following technical solutions:

[0006] A material strip assembly welding device comprises: a rotating disk, on which a plurality of feeding lower dies are arranged for carrying grinding parts; a frame, including a top plate, on which a welding upper die is arranged, and the feeding lower die can rotate with the rotating disk to periodically match the welding upper die; wherein the feeding lower die comprises a first template, a second template and a third template arranged in sequence from top to bottom along the longitudinal direction, the first template and the third template are fixedly connected, the second template is provided with a first positioning pin corresponding to the first positioning hole, and a second positioning pin corresponding to the second positioning hole, the second template can move longitudinally to drive the first positioning pin and the second positioning pin to pass through the first template to position or detach from the material strip assembly, and the feeding lower die can move longitudinally to approach or move away from the welding upper die; before welding, the material strip is between the first template and the welding upper die.

[0007] With such arrangement, when welding is completed, the first template maintains its longitudinal position, and the second template moves longitudinally toward the third template, so that the first positioning pin disengages from the first positioning hole in the longitudinal direction, and the second positioning pin disengages from the second positioning hole in the longitudinal direction. At this time, since the first template cooperates with the welding upper mold to limit the longitudinal position of the material strip assembly, the material strip assembly has a stable posture and will not deform due to the movement of the positioning pin during the longitudinal movement of the positioning pin to exit the positioning hole. This can ensure that the positioning pin smoothly disengages from the positioning hole, avoids the occurrence of pin jamming, and ensures production efficiency. After the needle withdrawal action is completed, the feeding lower mold moves downward as a whole in the longitudinal direction to disengage from the material strip assembly, and the stripping lower mold rotates with the turntable to enter the next welding cycle.

[0008] According to a preferred embodiment, a first guide rod extending longitudinally is provided between the first template and the third template, the first guide rod passes through the second template and is slidably connected thereto, a first return spring is pressed between the second template and the first template, and the first return spring acts on the second template so that it always has a tendency to move toward the first template.

[0009] According to a preferred embodiment, the feeding lower mold also includes a push plate and a second guide rod, the turntable is located between the push plate and the third template, the push plate and the third template are connected by the second guide rod, the second guide rod extends longitudinally, the second guide rod passes through the turntable and is slidably connected thereto; a second return spring is pressed between the push plate and the turntable, the second return spring acts on the push plate so that the third template has a tendency to move toward the turntable.

[0010] According to a preferred embodiment, the welding upper mold includes an upper mold plate, which is installed on the top plate, and the upper mold plate is penetrated by welding holes for leaking out the welding points of the material strip assembly; a positioning pin shaft is arranged on the top plate or the upper mold plate, and a positioning pin hole adapted for the positioning pin shaft is arranged on the first mold plate.

[0011] According to a preferred embodiment, the frame also includes a bottom plate, and the top plate and the bottom plate are arranged at intervals in the longitudinal direction; the welding upper mold includes an upper push plate, and the top plate is located between the upper push plate and the bottom plate; a push rod is arranged on the upper push plate, and the push rod is used to drive the second template in the longitudinal direction to approach the third template along the longitudinal direction.

[0012] According to a preferred embodiment, the frame also includes a longitudinal plate and a bottom plate, the top plate and the bottom plate are spaced apart in the longitudinal direction, the longitudinal plate is extended in the longitudinal direction, one end of which is connected to the top plate, and the other end is connected to the bottom plate; a material opening is opened at the end of the longitudinal plate close to the top plate, and two guide strips are installed on the lower side of the top plate, and the material strip or the material strip assembly before welding is located between the two guide strips.

[0013] According to a preferred embodiment, an auxiliary support plate is arranged on the top plate or the longitudinal plate, and the auxiliary support plate spans between the two guide strips and is used to limit the pre-welding material strip or the material strip assembly in the longitudinal direction.

[0014] According to a preferred embodiment, the frame also includes a longitudinal plate and a bottom plate, the top plate and the bottom plate are spaced apart in the longitudinal direction, the longitudinal plate is extended in the longitudinal direction, one end of which is connected to the top plate, and the other end is connected to the bottom plate; a material opening is opened at the end of the longitudinal plate close to the top plate, and a guide strip is installed on the lower side of the top plate; an auxiliary support plate is arranged on the top plate or the longitudinal plate, which is used to limit the pre-welding material strip or the material strip assembly in the longitudinal direction; the pre-welding material strip or the material strip assembly is located between the auxiliary support plate and the guide strip.

[0015] According to a preferred embodiment, the welding upper mold also includes a pressure block and a limit strip, an upper side surface of the upper mold plate is provided with an assembly groove, the welding hole is penetrated at the bottom of the assembly groove, and a guide hole is penetrated at the bottom of the assembly groove; the pressure block includes a guide part, the guide part is slidably embedded in the guide hole, the upper end of the guide part is provided with a limiting protrusion to prevent the guide part from disengaging from the guide hole along the longitudinal downward direction, and the lower end of the guide part is provided with a pressure head for clamping the grinding part and the pre-welding material strip; the limit strip is installed on the upper mold plate, and a limiting surface is provided on the limit strip, and the limiting surface is above the pressure block, and a buffer spring is pressed between the pressure block and the limiting surface, and the buffer spring acts on the pressure block so that the pressure block has a tendency to move downward along the longitudinal direction.

[0016] A method for using a strip assembly welding device, applied to the aforementioned strip assembly welding device, comprises the following steps:

[0017] Assemble the grinding piece to the feeding lower die so that the first positioning pin is inserted into the first positioning hole;

[0018] Rotate the rotary plate to match the feeding lower die with the welding upper die;

[0019] The feeding lower die moves upward in the longitudinal direction so that the grinding piece is attached to the pre-welding material strip, and the pre-welding material strip is attached to the welding upper die, and at the same time, the second positioning pin is inserted into the second positioning hole;

[0020] Welding the grinding piece to the pre-welding material strip to form a material strip assembly;

[0021] The first template maintains a longitudinal height, and the second template moves longitudinally downward so that the first positioning pin is disengaged from the first positioning hole, and the second positioning pin is disengaged from the second positioning hole;

[0022] The feeding lower die moves downward in the longitudinal direction as a whole to separate from the material belt assembly.

[0023] In this way, the first template maintains the longitudinal height of the strip assembly and cooperates with the welding upper mold to prevent the strip assembly from undergoing large longitudinal deformation during the process of the locating pin detaching from the locating hole, thereby avoiding the pin jamming phenomenon and ensuring production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 A schematic diagram of the three-dimensional structure of a strip assembly welding device provided in an embodiment of the present invention;

[0026] Figure 2 for Figure 1 A partial enlarged view of the structure at A in the middle;

[0027] Figure 3 A schematic diagram of the front view of the structure of the lower feeding die provided by the embodiment of the present invention being assembled to the rotary disk;

[0028] Figure 4 A schematic diagram of the three-dimensional structure of the feeding lower mold after the feeding belt assembly provided by the embodiment of the present invention;

[0029] Figure 5 A schematic diagram of the three-dimensional structure of a feeding lower die provided in an embodiment of the present invention;

[0030] Figure 6 A schematic diagram of the front view structure of the feeding lower die provided in an embodiment of the present invention;

[0031] Figure 7 A schematic diagram of the assembly structure of the auxiliary support plate, guide strips and top plate provided in an embodiment of the present invention;

[0032] Figure 8 An exploded schematic diagram of the assembly structure of the upper template, the pressing block and the limiting strip provided in an embodiment of the present invention;

[0033] Fig. 9A schematic diagram of the top structure of the upper template provided by an embodiment of the present invention;

[0034] Fig.10 A schematic diagram of the three-dimensional structure of a pressing block provided in an embodiment of the present invention;

[0035] Fig.11 A schematic diagram of an assembly structure of a guide strip and an auxiliary support plate provided in an embodiment of the present invention;

[0036] Fig.12 A schematic diagram of an assembly structure of another guide strip and an auxiliary support plate provided in an embodiment of the present invention;

[0037] Fig.13 Schematic diagram of the three-dimensional structure of the material strip assembly in an embodiment of the present invention.

[0038] Icons: 1. Rotary plate; 2. Feeding lower die; 21. First template; 211. First positioning pin; 212. Second positioning pin; 213. Positioning pin hole; 214. Suction cup; 22. Second template; 221. First guide rod; 222. Loading pin; 23. Third template; 24. Adapter block; 25. Push-down plate; 26. Second guide rod; 27. First return spring; 28. Second return spring; 3. Driving member; 31. First cylinder; 32. First driving plate; 41. Top plate; 411. Second cylinder; 412. Guide strip; 4 2. Longitudinal plate; 421. Material inlet; 43. Bottom plate; 44. Auxiliary support plate; 5. Welding upper mold; 51. Upper mold plate; 510. Welding hole; 511. Positioning pin; 512. Assembly groove; 513. Guide hole; 52. Press block; 521. Guide part; 522. Limiting protrusion; 523. Press head; 53. Limiting strip; 531. Limiting surface; 54. Buffer spring; 55. Upper push plate; 551. Push rod; a. Material strip before welding; a1. Second positioning hole; b. Grinding piece; b1. First positioning hole; c. Material strip assembly; X. First direction. DETAILED DESCRIPTION

[0039] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0040] In the description of the present invention, it should be noted that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0042] Please refer to Figures 1 to 13 , a material strip assembly c welding device, comprising a rotary disk 1 and a frame, wherein the rotary disk 1 is provided with a plurality of feeding lower molds 2 for carrying a grinding piece b;

[0043] The frame includes a top plate 41, on which a welding upper die 5 is arranged, and the feeding lower die 2 can rotate with the rotary disk 1 to periodically match the welding upper die 5; wherein the feeding lower die 2 includes a first template 21, a second template 22 and a third template 23 arranged in sequence from top to bottom along the longitudinal direction, the first template 21 and the third template 23 are fixedly connected by a transfer block 24, and the second template 22 is provided with a first positioning pin 211 corresponding to the first positioning hole b1, and a second positioning pin 212 corresponding to the second positioning hole a1, the second template 22 can move longitudinally to drive the first positioning pin 211 and the second positioning pin 212 to pass through the first template 21 to position or detach from the material strip assembly c, and the feeding lower die 2 can move longitudinally to approach or move away from the welding upper die 5; before welding, the material strip a is between the first template 21 and the welding upper die 5. In this embodiment, the rotary disk 1 is driven to rotate by a DD rotary motor. The pre-welding material strip a can move along the first direction X. On the first template 21, eight grinding pieces b are arranged at intervals along the length direction of the first template 21 to simultaneously realize the welding and assembly of the eight grinding pieces b and the pre-welding material strip a. Specifically, when the feeding lower mold 2 follows the turntable 1 to rotate to an appropriate position and matches the welding upper mold 5, the length direction of the first template 21 is parallel to the first direction X, so that the grinding pieces b correspond to the pre-welding material strip a in the first direction X, and then the feeding lower mold 2 moves longitudinally so that the grinding pieces b are attached to the pre-welding material strip a to form a material strip assembly c. During this process, the second positioning pin 212 is inserted into the second positioning hole a1, and the material strip assembly c is attached to the welding upper mold 5 under the action of the feeding lower mold 2, so that the position of the material strip assembly c is fixed in the longitudinal direction, and the spatial position of the material strip assembly c is fixed under the cooperation of the positioning pin and the positioning hole, so as to facilitate welding by a laser welding mechanism (not shown in the figure); when welding is completed, the first template 21 is kept Holding the longitudinal position, the second template 22 moves longitudinally toward the third template 23, so that the first positioning pin 211 is longitudinally disengaged from the first positioning hole b1, and the second positioning pin 212 is longitudinally disengaged from the second positioning hole a1. At this time, since the first template 21 cooperates with the welding upper mold 5 to limit the longitudinal position of the material strip assembly c, the material strip assembly c is stable in the process of the positioning pin moving longitudinally to exit the positioning hole, and the positioning pin will not be deformed by the movement of the positioning pin, which can ensure that the positioning pin is smoothly separated from the positioning hole, avoids the occurrence of the pin jamming phenomenon, and ensures production efficiency. After the needle withdrawal action is completed, the feeding lower mold 2 moves downward as a whole along the longitudinal direction to separate from the material strip assembly c, and the stripping lower mold rotates with the turntable 1 to enter the next welding cycle.

[0044] In this embodiment, there are three feeding lower dies 2 on the rotary disk 1 , and they are evenly distributed around the circumference of the rotary disk 1 .

[0045] like Figure 6As shown, a first guide rod 221 extending in the longitudinal direction is provided between the first template 21 and the third template 23, the first guide rod 221 penetrates the second template 22 and is slidably connected thereto, a first reset spring 27 is pressed between the second template 22 and the first template 21, and the first reset spring 27 acts on the second template 22 so that it always has a tendency to move toward the first template 21. In this embodiment, there are four first guide rods 221 so that the second template 22 can stably move between the first template 21 and the third template 23, and the first reset spring 27 acts on the second template 22 so that the second template 22 can be reset after the feeding lower mold 2 is separated from the material belt assembly c.

[0046] like Figure 3 and Figure 6 As shown, the feeding lower die 2 also includes a lower push plate 25 and a second guide rod 26. The rotary disk 1 is located between the lower push plate 25 and the third template 23. The lower push plate 25 and the third template 23 are connected by the second guide rod 26. The second guide rod 26 extends in the longitudinal direction. The second guide rod 26 penetrates the rotary disk 1 and is slidably connected thereto. A second reset spring 28 is pressed between the lower push plate 25 and the rotary disk 1. The second reset spring 28 acts on the lower push plate 25 so that the third template 23 has a tendency to move toward the rotary disk 1. The second reset spring 28 is used to quickly reset the feeding lower die 2 downward in the longitudinal direction when the feeding lower die 2 is separated from the material belt assembly c.

[0047] like Figure 1 As shown, the frame further includes a longitudinal plate 42 and a bottom plate 43, the top plate 41 and the bottom plate 43 are arranged at intervals in the longitudinal direction, the longitudinal plate 42 is arranged to extend in the longitudinal direction, one end of which is connected to the top plate 41, and the other end is connected to the bottom plate 43. In this embodiment, a driving member 3 for driving the push-down plate 25 to move upward in the longitudinal direction is arranged on the bottom plate 43, the driving member 3 includes a first cylinder 31 arranged on the bottom plate 43, the free end of the piston rod of the first cylinder 31 is arranged with a first driving plate 32, and the push-down plate 25 is on the movement path of the first driving plate 32 in the longitudinal direction. When in use, the first cylinder 31 drives the first drive plate 32 to move upward in the longitudinal direction, and the first drive plate 32 acts on the push-down plate 25 to make the first template 21, that is, the feeding lower mold 2 move upward in the longitudinal direction. During this process, the first return spring 27 is compressed and stores energy. When the first driving member 3 drives the first drive plate 32 to move downward in the longitudinal direction, the first return spring 27 acts on the turntable 1 and the push-down plate 25, so that the first template 21, that is, the feeding lower mold 2 moves downward in the longitudinal direction and resets.

[0048] The welding upper mold 5 includes an upper mold plate 51, which is mounted on the top plate 41. The upper mold plate 51 is penetrated by a welding hole 510 for leaking the welding point of the material belt assembly c;

[0049] A positioning pin 511 is disposed on the top plate 41 or the upper template 51, and a positioning pin hole 213 adapted to the positioning pin 511 is disposed on the first template 21. Preferably, the positioning pin 511 is disposed on the upper template 51. When in use, the positioning pin 511 cooperates with the positioning pin hole 213 to position the feeding lower mold 2, so that the grinding piece b and the pre-welding material strip a are accurately positioned, which helps to ensure product quality. In this embodiment, the laser beam of the laser welding mechanism passes through the welding hole 510 and irradiates the welding point of the material strip assembly c.

[0050] The welding upper mold 5 also includes a pressing block 52 and a limiting strip 53. An assembly groove 512 is opened on the upper side of the upper mold plate 51. The welding hole 510 is arranged through the bottom of the assembly groove 512. A guide hole 513 is arranged through the bottom of the assembly groove 512. The pressing block 52 includes a guide portion 521, which is slidably embedded in the guide hole 513. A limiting protrusion 522 is arranged at the upper end of the guide portion 521 to prevent the guide portion 521 from disengaging from the guide hole 513 in the longitudinal downward direction. A pressing head 523 for pressing the grinding piece b and the pre-welding material strip a is arranged at the lower end of the guide portion 521. The limiting strip 53 is installed on the upper mold plate 51. A limiting surface 531 is arranged on the limiting strip 53. The limiting surface 531 is located above the pressing block 52. A buffer spring 54 is pressed between the pressing block 52 and the limiting surface 531. The buffer spring 54 acts on the pressing block 52 so that the pressing block 52 has a tendency to move downward in the longitudinal direction. When in use, the feeding lower mold 2 drives the grinding piece b upward along the longitudinal direction to fit it to the pre-welding material strip a, and drives the two upward so that the pre-welding material strip a abuts against the pressure head 523. During the process, the pressure head 523 is forced to drive the guide part 521 to move upward along the longitudinal direction in the guide hole 513. At this time, the third return spring is compressed and energy is stored, thereby achieving flexible contact between the pre-welding material strip a and the pressure head 523, that is, the pressure block 52, and avoiding damage to the pre-welding material strip a and the grinding piece b.

[0051] In some embodiments, Fig. 9 As shown, the guide hole 513 is connected to the welding hole 510, and the cross section of the guide hole 513 is T-shaped. Fig.10 As shown, the shape of the guide portion 521 matches the shape of the guide hole 513 .

[0052] like Figure 1 and Figure 2 As shown, the welding upper mold 5 includes an upper push plate 55, and the top plate 41 is located between the upper push plate 55 and the bottom plate 43;

[0053] The upper push plate 55 is provided with a push rod 551, which is used to drive the second template 22 to move closer to the third template 23 in the longitudinal direction. In this embodiment, the push rod 551 passes through the top plate 41, and the top plate 41 is provided with a second cylinder 411, which is used to drive the upper push plate 55 to move in the longitudinal direction. The second template 22 is provided with a bearing pin 222 corresponding to the push rod 551. When in use, the second cylinder 411 drives the upper push plate 55 to move downward in the longitudinal direction, and drives the bearing pin 222 through the push rod 551 to drive the second template 22 to move toward the third template 23, so that the positioning pin is separated from the positioning hole.

[0054] like Fig.11 As shown, in some embodiments, a material opening 421 is provided at the end of the longitudinal plate 42 close to the top plate 41, and two guide bars 412 are installed on the lower side of the top plate 41, and the pre-welding material strip a or the material strip assembly c is located between the two guide bars 412. Furthermore, an auxiliary support plate 44 is arranged on the top plate 41 or the longitudinal plate 42, and the auxiliary support plate 44 spans between the two guide bars 412 and is used to limit the pre-welding material strip a or the material strip assembly c in the longitudinal direction. Figure 7 and Fig.11 As shown, the auxiliary support plate 44 cooperates with the guide strip 412 to limit the pre-welding material strip a and the material strip assembly c, so that the material strip maintains a stable movement trajectory.

[0055] like Fig.11 As shown, the guide bar 412 is provided with a bearing surface, and the pre-welding material strip a or the material strip assembly c is slidably attached to the bearing surface; the guide bar 412 is adjustably mounted on the top plate 41 in the longitudinal direction. In this embodiment, the guide bar 412 penetrates the top plate 41 and is slidably connected thereto, and the guide bar 412 is driven by a third cylinder (not shown in the figure) installed on the top plate 41 to move in the longitudinal direction to adjust the degree of compression of the guide bar 412 on the pre-welding material strip a and the material strip assembly c in the longitudinal direction.

[0056] In some embodiments, Fig.12 As shown, the pre-welding material strip a or the material strip assembly c is located below the two guide strips 412. That is, the pre-welding material strip a or the material strip assembly c is located between the auxiliary support plate 44 and the guide strip 412.

[0057] In this embodiment, a suction cup 214 is disposed on the first template 21 for adsorbing and fixing the grinding piece b.

[0058] In this embodiment, a method for using the strip assembly C welding device is also provided, which is applied to the aforementioned strip assembly C welding device and includes the following steps:

[0059] S1: Assemble the grinding piece b to the feeding lower die 2 so that the first positioning pin 211 is inserted into the first positioning hole b1;

[0060] S2: Rotate the rotary disk 1 so that the feeding lower die 2 matches the welding upper die 5;

[0061] S3: the feeding lower die 2 moves upward in the longitudinal direction, so that the grinding piece b is attached to the pre-welding material strip a, and the pre-welding material strip a is attached to the welding upper die 5, and at the same time, the second positioning pin 212 is inserted into the second positioning hole a1; S4: the grinding piece b is welded with the pre-welding material strip a to form a material strip assembly c;

[0062] S5: the first template 21 maintains a longitudinal height, and the second template 22 moves longitudinally downward so that the first positioning pin 211 is disengaged from the first positioning hole b1, and the second positioning pin 212 is disengaged from the second positioning hole a1;

[0063] S6: The feeding lower die 2 moves downward in the longitudinal direction as a whole to separate from the material strip assembly c;

[0064] S7: The turntable 1 rotates, and the material strip assembly c moves forward to enter the next welding cycle.

[0065] In this way, the first template 21 is used to maintain the longitudinal height of the strip assembly c and cooperates with the welding upper mold 5 to prevent the strip assembly c from undergoing large longitudinal deformation during the process of the positioning pin detaching from the positioning hole, thereby avoiding the pin jamming phenomenon and ensuring production efficiency.

[0066] The technical means disclosed in the scheme of the present invention are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical schemes composed of any combination of the above-mentioned technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications are also regarded as the protection scope of the present invention.

Claims

1. A strip assembly welding device, characterized in that: include: A rotating disk, on which a plurality of feeding lower dies are arranged for carrying the grinding parts; The frame includes a top plate, on which a welding upper die is arranged, and the feeding lower die can rotate with the rotating disk to periodically match the welding upper die; wherein, The feeding lower die includes a first template, a second template and a third template which are arranged in sequence from top to bottom along the longitudinal direction. The first template and the third template are fixedly connected. The second template is provided with a first positioning pin corresponding to the first positioning hole and a second positioning pin corresponding to the second positioning hole. The second template can move longitudinally to drive the first positioning pin and the second positioning pin to pass through the first template to position or detach from the material strip assembly. The feeding lower die can move longitudinally to approach or move away from the welding upper die; before welding, the material strip is between the first template and the welding upper die.

2. The strip assembly welding equipment according to claim 1, characterized in that: A first guide rod extending longitudinally is provided between the first template and the third template, the first guide rod passes through the second template and is slidably connected thereto, a first return spring is pressed between the second template and the first template, the first return spring acts on the second template so that it always has a tendency to move toward the first template.

3. The strip assembly welding equipment according to claim 1, characterized in that: The feeding lower die also includes a lower push plate and a second guide rod, the rotary disk is located between the lower push plate and the third template, the lower push plate and the third template are connected by the second guide rod, the second guide rod extends in the longitudinal direction, and the second guide rod passes through the rotary disk and is slidably connected thereto; A second return spring is pressed between the push-down plate and the turntable, and the second return spring acts on the push-down plate to make the third template have a movement tendency toward the turntable.

4. The strip assembly welding equipment according to claim 1, characterized in that: The welding upper mold comprises an upper mold plate, the upper mold plate is mounted on the top plate, and a welding hole for leaking out the welding point of the material belt assembly is provided through the upper mold plate; The top plate or the upper template is provided with a positioning pin shaft, and the first template is provided with a positioning pin hole matched with the positioning pin shaft.

5. The strip assembly welding equipment according to claim 1, characterized in that: The frame further comprises a bottom plate, wherein the top plate and the bottom plate are arranged spaced apart in the longitudinal direction; The welding upper mold comprises an upper push plate, and the top plate is located between the upper push plate and the bottom plate; The upper push plate is provided with a push rod, and the push rod is used for driving the second template to approach the third template in the longitudinal direction.

6. The strip assembly welding equipment according to claim 1, characterized in that: The frame further comprises a longitudinal plate and a bottom plate, wherein the top plate and the bottom plate are spaced apart in the longitudinal direction, and the longitudinal plate is extended in the longitudinal direction, one end of the longitudinal plate is connected to the top plate, and the other end is connected to the bottom plate; The end of the longitudinal plate close to the top plate is provided with a material opening, and the lower side of the top plate is equipped with two guide strips, and the material strip or the material strip assembly before welding is located between the two guide strips.

7. The strip assembly welding equipment according to claim 6, characterized in that: An auxiliary support plate is disposed on the top plate or the longitudinal plate. The auxiliary support plate spans between the two guide strips and is used to limit the pre-welding material strip or the material strip assembly in the longitudinal direction.

8. The strip assembly welding equipment according to claim 1, characterized in that: The frame further comprises a longitudinal plate and a bottom plate, wherein the top plate and the bottom plate are spaced apart in the longitudinal direction, and the longitudinal plate is extended in the longitudinal direction, one end of the longitudinal plate is connected to the top plate, and the other end is connected to the bottom plate; The end of the longitudinal plate close to the top plate is provided with a material opening, and the lower side of the top plate is equipped with a guide strip; The top plate or the longitudinal plate is provided with an auxiliary support plate for limiting the pre-welding material strip or the material strip assembly in the longitudinal direction; The material strip or the material strip assembly before welding is located between the auxiliary support plate and the guide strip.

9. The strip assembly welding equipment according to claim 4, characterized in that: The welding upper die also includes a pressing block and a limiting strip, an upper side surface of the upper die plate is provided with an assembly groove, the welding hole is provided through the bottom of the assembly groove, and a guide hole is provided through the bottom of the assembly groove; The pressing block comprises a guide portion, which is slidably embedded in the guide hole, and the upper end of the guide portion is provided with a limiting protrusion to prevent the guide portion from being disengaged from the guide hole in the longitudinal direction downward, and the lower end of the guide portion is provided with a pressing head for pressing the grinding piece and the pre-welding material strip; The limit bar is installed on the upper template, and a limit surface is arranged on the limit bar, and the limit surface is located above the pressure block. A buffer spring is pressed between the pressure block and the limit surface, and the buffer spring acts on the pressure block so that the pressure block has a tendency to move downward in the longitudinal direction.

10. A method for using a strip assembly welding device, applied to the strip assembly welding device according to any one of claims 1 to 9, characterized in that: The steps include: Assemble the grinding piece to the feeding lower die so that the first positioning pin is inserted into the first positioning hole; Rotate the rotary plate to match the feeding lower die with the welding upper die; The feeding lower die moves upward in the longitudinal direction so that the grinding piece is attached to the pre-welding material strip, and the pre-welding material strip is attached to the welding upper die, and at the same time, the second positioning pin is inserted into the second positioning hole; Welding the grinding piece to the pre-welding material strip to form a material strip assembly; The first template maintains a longitudinal height, and the second template moves longitudinally downward so that the first positioning pin is disengaged from the first positioning hole, and the second positioning pin is disengaged from the second positioning hole; The feeding lower die moves downward in the longitudinal direction as a whole to separate from the material belt assembly.

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