Elastic sheet forming mechanism and riveting machine

Abstract

The utility model discloses an elastic piece forming mechanism and a riveting machine. The elastic piece forming mechanism comprises a material conveying base, a feeding assembly, a bending assembly and a cutting-off assembly. The material conveying base is used for allowing a metal material belt to pass through, and the metal material belt is formed by connecting a plurality of elastic pieces; the feeding assembly is used for driving a metal strip to advance; the bending assembly is used for bending an elastic sheet in the metal material strip; the bending assembly comprises a bending connecting plate, a bending punch, a bending driving part and a bending bottom die, the bending driving part is arranged on the feeding base, the bending driving part is in driving connection with the bending connecting plate, the bending punch is arranged on the bending connecting plate and located above a conveying path of the metal strip, the bending bottom die is arranged on the feeding base, and the bending bottom die is located above the feeding base. The bending driving part is arranged on the bending connecting plate, is positioned below a moving path of the metal material strip and can drive the bending connecting plate to drive the bending punch to lift; the cutting-off assembly is used for cutting off the metal strip; wherein the feeding assembly, the bending assembly and the cutting assembly are sequentially arranged on the material conveying base in the conveying direction of a metal material belt.

Description

Technical Field

[0001] The present application relates to the field of metal parts forming equipment, and in particular to a spring forming mechanism and a riveting machine. Background Art

[0002] During the production process of the charger, the shrapnel needs to be riveted to the shell. In the related art, the shrapnel to be processed is generally manually placed into the bending equipment, the shrapnel is bent by the bending equipment, and then the bent shrapnel is manually taken out and placed on the riveting jig to facilitate the subsequent riveting of the shrapnel and the shell. The shrapnel needs to be manually loaded into the bending equipment one by one, and manually unloaded one by one onto the riveting jig. Manual loading and unloading and the shrapnel are small and difficult to grasp, resulting in low production efficiency and poor production continuity, further affecting production efficiency. Utility Model Content

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a spring sheet forming mechanism that can automatically form spring sheets, reduce manual intervention, and improve production efficiency.

[0004] According to the first aspect of the present application, the spring sheet forming mechanism includes:

[0005] A material feeding base, wherein the material feeding base is used to pass a metal material belt, and the metal material belt is formed by connecting a plurality of spring sheets;

[0006] A feeding assembly, the feeding assembly is used to drive the metal strip forward;

[0007] A bending assembly, the bending assembly is used to bend the spring pieces in the metal strip; the bending assembly includes a bending connecting plate, a bending punch, a bending driving member and a bending bottom die, the bending driving member is arranged on the feeding base, the bending driving member drives and connects the bending connecting plate, the bending punch is arranged on the bending connecting plate, and the bending punch is located above the conveying path of the metal strip, the bending bottom die is arranged on the feeding base and is located below the moving path of the metal strip, the bending driving member can drive the bending connecting plate to drive the bending punch to rise and fall, so that the bending punch cooperates with the bending bottom die to bend the spring pieces in the metal strip; the bending punch includes a first punch and a second punch , the bending bottom die includes a first bottom die and a second bottom die, the first punch and the second punch are distributed along the conveying direction of the metal strip, the first punch cooperates with the first bottom die to bend the spring sheet, and the second punch cooperates with the second bottom die to bend the spring sheet, wherein the first bottom die has a first supporting surface and a first bending surface, the second bottom die has a second supporting surface and a second bending surface, the first supporting surface and the second supporting surface are used to support the spring sheet part, the first bending surface and the second bending surface are respectively used to cooperate with the first punch and the second punch to bend the spring sheet, and the angle between the first supporting surface and the first bending surface is greater than the angle between the second supporting surface and the second bending surface;

[0008] A cutting assembly, the cutting assembly is used to cut the metal strip to separate adjacent spring sheets;

[0009] Among them, the feeding assembly, the bending assembly, and the cutting assembly are sequentially arranged on the feeding base along the conveying direction of the metal strip.

[0010] According to the shrapnel forming mechanism of the first aspect embodiment of the present application, at least the following beneficial effects are achieved: the feeding assembly is used to push the metal strip forward, so that the metal strip enters the bending assembly and the cutting assembly in sequence, and can make the metal strip move intermittently, so as to stop conveying the metal strip when the bending assembly and the cutting assembly are working, and convey the strip when the bending assembly and the cutting assembly stop working. The bending assembly can bend the shrapnel in the metal strip, so that the riveted part and the bending part of the shrapnel are bent. The cutting assembly can cut off the adjacent shrapnel to separate the shrapnel. Specifically, the cutting assembly cuts off the connection position between the connecting piece and the shrapnel, so that the shrapnel is detached from the connecting piece. As a result, the shrapnel forming mechanism of the present application can automatically bend the strip and cut the strip to form the shrapnel, and the production efficiency is relatively high. And by processing the strip in the form of processing the shrapnel to facilitate the processing of the shrapnel, the processing continuity of the shrapnel is better, and the production efficiency is further improved. In addition, the spring sheet is pre-bent by the first punch and the first bottom die, and then the spring sheet is completely bent by the second punch and the second bottom die, thereby reducing the impact of the spring sheet rebound and avoiding the spring sheet not being bent into place at one time.

[0011] According to some embodiments of the present application, the feeding assembly includes a feeding connecting plate, a feeding push plate, a first fastener, a second fastener, a tension spring, a rotating shaft and a feeding driving member, the feeding driving member is arranged on the feeding base, and the feeding driving member drives and connects the feeding connecting plate, so as to make the feeding connecting plate reciprocate along the conveying direction of the metal strip; the rotating shaft passes through the feeding connecting plate and the feeding push plate in a horizontal direction, and the feeding push plate is rotatably arranged on the feeding connecting plate through the rotating shaft; the first fastener is horizontally arranged on the feeding connecting plate, and the second fastener is horizontally arranged on the feeding push plate, and both ends of the tension spring are hung on the first fastener and the second fastener so that the feeding end of the feeding push plate is tilted downward.

[0012] According to some embodiments of the present application, the feeding assembly also includes a feeding guide plate, which is arranged on the feeding base, and a gap for passing the metal material strip is formed between the feeding guide plate and the feeding base. An avoidance groove is provided on the feeding guide plate, and the avoidance groove moves along the conveying direction of the metal material strip. The feeding end of the feeding push plate can be slidably arranged in the avoidance groove.

[0013] According to some embodiments of the present application, the feeding end of the feeding push plate has a pushing surface and a guide surface, and the feeding end of the feeding push plate can be inserted into the positioning hole of the metal strip; when the feeding push plate moves along the conveying direction of the metal strip, the pushing surface abuts against the inner wall of the positioning hole to push the metal strip; when the feeding push plate moves in the opposite direction of the conveying direction of the metal strip, the guide surface slides with the inner wall of the positioning hole to make the feeding end exit the positioning hole.

[0014] According to some embodiments of the present application, the bending assembly includes a bending positioning drive component and a bending positioning plate, the bending positioning drive component is arranged on the feeding base, a positioning column is arranged at the lower end of the bending positioning plate, the bending positioning plate is located above the metal strip conveying path, and the bending positioning drive component drives and connects the bending positioning plate so that the positioning column can be inserted into the positioning hole of the metal strip.

[0015] According to some embodiments of the present application, the cutting assembly includes a cutting bottom die, a cutting connecting plate, a cutting punch, and a cutting drive; the cutting bottom die is arranged on the feeding base, the cutting bottom die is located below the moving path of the metal strip, a cutting hole is opened on the cutting bottom die, the cutting drive is arranged on the feeding base, the cutting drive is connected to the cutting punch through the cutting connecting plate, and is used to lift and lower the cutting punch, the cutting punch is located above the cutting bottom die, and the cutting punch can be inserted into the cutting hole to cut off the connection position of two adjacent spring pieces.

[0016] According to some embodiments of the present application, the cutting assembly includes a pressure plate and a pressure driving component; the pressure driving component is arranged on the feeding base and is located beside the moving path of the bent part of the spring sheet, and the pressure driving component drives the pressure plate to be connected to make the pressure plate close to the bent part of the spring sheet, and the side surfaces of the pressure plate and the feeding base cooperate to clamp the bent part of the spring sheet.

[0017] According to some embodiments of the present application, a vertical positioning groove is formed on the side of the cutting bottom mold, and the positioning groove is used to clamp the bent part of the spring sheet.

[0018] According to some embodiments of the present application, an unwinding assembly is also included, and the unwinding assembly is used to unwind the metal strip onto the feeding base.

[0019] The riveting machine according to the second aspect of the present application includes the spring sheet forming mechanism of the first aspect.

[0020] The riveting machine according to the second aspect of the present application has at least the following beneficial effects: including all the beneficial effects of the spring sheet forming mechanism of the first aspect, which will not be repeated here.

[0021] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present application is further described below with reference to the accompanying drawings and embodiments, wherein:

[0023] Figure 1 A schematic structural diagram of a riveting machine according to a second aspect of the present application;

[0024] Figure 2 for Figure 1 The structural diagram of the middle shrapnel forming mechanism;

[0025] Figure 3 for Figure 2 A schematic diagram of a portion of the structure of the middle shrapnel forming mechanism;

[0026] Figure 4 for Figure 2 A schematic diagram of a part of the structure of the middle shrapnel forming mechanism from another perspective;

[0027] Figure 5 for Figure 3 Structural diagram of the middle feeding push plate;

[0028] Figure 6 for Figure 3 A schematic diagram of the cooperation between the first punch and the first bottom die;

[0029] Figure 7 for Figure 3 Schematic diagram of the cooperation between the second punch and the second bottom die;

[0030] Figure 8 for Figure 1 Schematic diagram of the structure of the metal strip;

[0031] Fig. 9 for Figure 1 Schematic diagram of the structure after the middle shell and shrapnel are riveted.

[0032] Reference numerals:

[0033] Shrapnel forming mechanism 1000;

[0034] Feeding base 100;

[0035] Feeding assembly 200, feeding connecting plate 210, feeding push plate 220, feeding end 221, pushing surface 221a, guide surface 221b, first fastener 230, second fastener 240, tension spring 250, rotating shaft 260, feeding driving member 270, feeding guide plate 280, avoidance groove 281;

[0036] Bending assembly 300, bending positioning drive member 310, bending positioning plate 320, bending connecting plate 330, bending punch 340, first punch 341, second punch 342, bending drive member 350, bending bottom die 360, first bottom die 361, first supporting surface 361a, first bending surface 361b, second bottom die 362, second supporting surface 362a, second bending surface 362b;

[0037] Cutting assembly 400, pressing plate 410, pressing driving member 420, cutting bottom die 430, cutting hole 431, positioning groove 432, cutting connecting plate 440, cutting punch 450, cutting driving member 460;

[0038] Unwinding assembly 500;

[0039] Metal strip 600, spring piece 610, riveted portion 611, riveted hole 6111, bent portion 612, connecting piece 620, positioning hole 621;

[0040] Housing 700. DETAILED DESCRIPTION

[0041] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0042] In the description of the present application, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0043] In the description of this application, "several" means more than one, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0044] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0045] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0046] Reference Figures 2 to 4 According to the first aspect of the present application, the spring sheet forming mechanism 1000 includes:

[0047] A material feeding base 100, the material feeding base 100 is used to pass a metal material strip 600, and the metal material strip 600 is formed by connecting a plurality of spring pieces 610;

[0048] A feeding assembly 200, the feeding assembly 200 is used to drive the metal strip 600 forward;

[0049] The bending assembly 300 is used to bend the spring piece 610 in the metal strip 600; the bending assembly 300 includes a bending connecting plate 330, a bending punch 340, a bending driving member 350 and a bending bottom die 360. The bending driving member 350 is arranged on the feeding base 100, and the bending driving member 350 drives and connects the bending connecting plate 330. The bending punch 340 is arranged on the bending connecting plate 330, and the bending punch 340 is located above the conveying path of the metal strip 600. The bending bottom die 360 ​​is arranged on the feeding base 100 and is located below the moving path of the metal strip 600. The bending driving member 350 can drive the bending connecting plate 330 to drive the bending punch 340 to rise and fall, so that the bending punch 340 cooperates with the bending bottom die 360 ​​to bend the spring piece 610 in the metal strip 600.

[0050] A cutting assembly 400, which is used to cut the metal strip 600 to separate adjacent spring sheets 610;

[0051] Among them, the feeding assembly 200 , the bending assembly 300 , and the cutting assembly 400 are sequentially arranged on the feeding base 100 along the conveying direction of the metal strip 600 .

[0052] It can be understood that the spring sheet forming mechanism 1000 is used to bend the spring sheets 610 in the metal strip 600 one by one and separate the connected spring sheets 610. Figure 8 and Fig. 9 The metal strip 600 is formed by connecting a plurality of spring pieces 610. The metal strip 600 includes a plurality of spring pieces 610 and a connecting piece 620. The spring pieces 610 have a riveted portion 611 and a bent portion 612. The connecting piece 620 is connected to the riveted portions 611 of the plurality of spring pieces 610. The spring pieces 610 are distributed along the length direction of the connecting piece 620. The connecting piece 620 has a positioning hole 621, and the riveted portion 611 has a riveted hole 6111. Specifically, the feeding assembly 200 is used to push the metal strip 600 forward, so that the metal strip 600 enters the bending assembly 300 and the cutting assembly 400 in sequence, and can make the metal strip 600 move intermittently, so as to stop feeding the metal strip 600 when the bending assembly 300 and the cutting assembly 400 are working, and feed the strip when the bending assembly 300 and the cutting assembly 400 stop working. The bending assembly 300 can bend the spring sheet 610 in the metal strip 600 so that the riveted portion 611 and the bent portion 612 of the spring sheet 610 are bent. The cutting assembly 400 can cut off adjacent spring sheets 610 so that the spring sheets 610 are separated. Specifically, the cutting assembly 400 cuts off the connection position between the connecting sheet 620 and the spring sheet 610 so that the spring sheet 610 is separated from the connecting sheet 620. In addition, an unwinding assembly 500 can also be included for unwinding the metal strip 600 to the spring sheet forming mechanism 1000.

[0053] In addition, refer to Figure 6 and Figure 7 The bending punch 340 includes a first punch 341 and a second punch 342, and the bending bottom die 360 ​​includes a first bottom die 361 and a second bottom die 362. The first punch 341 and the second punch 342 are distributed along the conveying direction of the metal strip 600. The first punch 341 cooperates with the first bottom die 361 to bend the spring piece 610, and the second punch 342 cooperates with the second bottom die 362 to bend the spring piece 610. The first bottom die 361 has a first supporting surface 361a and a first bending surface 361b. 1b, the second bottom mold 362 has a second supporting surface 362a and a second bending surface 362b, the first supporting surface 361a and the second supporting surface 362a are used to support the spring piece 610, the first bending surface 361b and the second bending surface 362b are used to cooperate with the first punch 341 and the second punch 342 to bend the spring piece 610, and the angle between the first supporting surface 361a and the first bending surface 361b is greater than the angle between the second supporting surface 362a and the second bending surface 362b;

[0054] It can be understood that the first support surface 361a and the second support surface 362a are used to support the riveted portion 611 of the spring piece 610. When the first punch 341 / the second punch 342 is pressed down, the first punch 341 / the second punch 342 can cooperate with the first bending surface 361b / the second bending surface 362b to bend the bent portion 612 of the spring piece 610 relative to the riveted portion 611. Since the angle between the first support surface 361a and the first bending surface 361b is greater than the angle between the second support surface 362a and the second bending surface 362b, the spring piece 610 formed after being bent by the first punch 341 and the first bottom die 361 has a smaller bending degree, and the spring piece 610 formed after being bent by the second punch 342 and the second bottom die 362 has a larger bending degree. It can be seen that the spring piece 610 is pre-bent by the first punch 341 and the first bottom mold 361, and then the spring piece 610 is completely bent by the second punch 342 and the second bottom film, thereby reducing the impact of the spring piece 610 rebounding and avoiding the spring piece 610 not being bent into place at one time.

[0055] Reference Figure 3According to some embodiments of the present application, the feeding assembly 200 includes a feeding connecting plate 210, a feeding push plate 220, a first fastener 230, a second fastener 240, a tension spring 250, a rotating shaft 260 and a feeding driving member 270. The feeding driving member 270 is arranged on the feeding base 100. The feeding driving member 270 drives and connects the feeding connecting plate 210 to make the feeding connecting plate 210 reciprocate along the conveying direction of the metal strip 600; the rotating shaft 260 penetrates the feeding connecting plate 210 and the feeding push plate 220 in the horizontal direction, and the feeding push plate 220 is rotatably set on the feeding connecting plate 210 through the rotating shaft 260; the first fastener 230 is horizontally set on the feeding connecting plate 210, and the second fastener 240 is horizontally set on the feeding push plate 220, and the two ends of the tension spring 250 are hung on the first fastener 230 and the second fastener 240, so that the feeding end 221 of the feeding push plate 220 is tilted downward.

[0056] It can be understood that the installation height of the first fastener 230 is higher than the installation height of the second fastener 240, and higher than the installation height of the rotating shaft 260. The feeding end 221 of the feeding push plate 220 and the connection position of the second fastener 240 and the feeding push plate 220 are respectively located on both sides of the rotating shaft 260. Therefore, the first fastener 230 can pull the second fastener 240 through the tension spring 250, so that the end of the feeding push plate 220 connected to the second fastener 240 is tilted, and the feeding end 221 of the feeding push plate 220 is pressed down, so that the feeding end 221 of the feeding push plate 220 is stuck in the positioning hole 621 of the connecting piece 620. Moreover, under the elastic action of the tension spring 250, the feeding push plate 220 can also swing around the rotating shaft 260. In the process of the feeding end 221 withdrawing from the positioning hole 621, since the feeding push plate 220 is subjected to the force of the feeding driving member 270 moving backward, the guide surface 221b of the feeding end 221 and the spring piece 610 form a relative sliding, and the feeding end 221 is slightly tilted to leave the positioning hole 621.

[0057] Therefore, when the feeding drive 270 drives the feeding push plate 220 to move forward along the conveying direction of the metal strip 600 through the feeding connecting plate 210, the feeding end 221 of the feeding push plate 220 will push the hole wall of the positioning hole 621. When the feeding push plate 220 moves backward, the feeding end 221 of the feeding push plate 220 rotates around the rotating shaft 260, and the feeding end 221 leaves the positioning hole 621 and moves to the rear positioning hole 621, and then repeatedly pushes the metal strip 600, thereby realizing intermittent forward advancement of the metal strip 600 through the reciprocating motion of the feeding push plate 220.

[0058] Reference Figure 3According to some embodiments of the present application, the feeding assembly 200 also includes a feeding guide plate 280, which is disposed on the feeding base 100, and a gap for passing the metal strip 600 is formed between the feeding guide plate 280 and the feeding base 100, and an avoidance groove 281 is opened on the feeding guide plate 280, and the avoidance groove 281 moves along the conveying direction of the metal strip 600, and the feeding end 221 of the feeding push plate 220 is slidably disposed in the avoidance groove 281.

[0059] It is understandable that the positioning hole 621 of the connecting piece 620 corresponds to the avoidance groove 281 to ensure that the feeding end 221 of the feeding push plate 220 can pass through the avoidance groove 281 and be inserted into the positioning hole 621. The feeding guide plate 280 cooperates with the feeding base 100 to play a limiting role.

[0060] Reference Figure 5 According to some embodiments of the present application, the feeding end 221 of the feeding push plate 220 has a pushing surface 221a and a guide surface 221b, and the feeding end 221 of the feeding push plate 220 can be inserted into the positioning hole 621 of the metal strip 600; when the feeding push plate 220 moves along the conveying direction of the metal strip 600, the pushing surface 221a abuts against the inner wall of the positioning hole 621 to push the metal strip 600; when the feeding push plate 220 moves in the opposite direction of the conveying direction of the metal strip 600, the guide surface 221b slides with the inner wall of the positioning hole 621 to make the feeding end 221 exit the positioning hole 621.

[0061] It can be understood that the pushing surface 221a is vertically arranged and can abut against the inner wall of the positioning hole 621. When the feeding push plate 220 moves toward the conveying direction of the metal strip 600, the feeding end 221 pushes the metal strip 600 forward through the pushing surface 221a. The guide surface 221b is inclinedly arranged. When the feeding push plate 220 moves in the opposite direction of the conveying direction of the metal strip 600, that is, backward, the guide surface 221b of the feeding end 221 slides with the inner wall of the positioning hole 621, so that the feeding end 221 is disengaged from the positioning hole 621.

[0062] Reference Figure 3 and Figure 4 According to some embodiments of the present application, the bending assembly 300 includes a bending positioning drive component 310 and a bending positioning plate 320. The bending positioning drive component 310 is arranged on the feeding base 100. A positioning column is arranged at the lower end of the bending positioning plate 320. The bending positioning plate 320 is located above the conveying path of the metal strip 600. The bending positioning drive component 310 drives the bending positioning plate 320 to enable the positioning column to be inserted into the positioning hole 621 of the metal strip 600.

[0063] It is understandable that when the metal strip 600 moves to the bending assembly 300, the positioning parts of the connecting piece 620 and the spring piece 610 are supported by the bending bottom die 360 ​​and are located below the bending positioning plate 320. The bending positioning driver 310 drives the bending positioning plate 320 to press down, so that the positioning column at the lower end of the bending positioning plate 320 passes through the positioning hole 621 on the connecting piece 620, thereby positioning the metal strip 600. The bending part 612 of the spring piece 610 is suspended and located below the bending punch 340. The bending driver 350 drives the bending punch 340 to press down through the bending connecting plate 330. The edge of the bent bottom film is located beside the moving path of the bending punch 340. The bent bottom film cooperates with the bending punch 340 to bend the bending part 612 of the spring piece 610 relative to the riveted part 611.

[0064] Reference Figure 3 and Figure 4 According to some embodiments of the present application, the cutting assembly 400 includes a cutting bottom die 430, a cutting connecting plate 440, a cutting punch 450, and a cutting driving member 460; the cutting bottom die 430 is arranged on the feeding base 100, the cutting bottom die 430 is located below the moving path of the metal strip 600, a cutting hole 431 is opened on the cutting bottom die 430, and the cutting driving member 460 is arranged on the feeding base 100, the cutting driving member 460 is connected to the cutting punch 450 through the cutting connecting plate 440, and is used to lift the cutting punch 450, the cutting punch 450 is located above the cutting bottom die 430, and the cutting punch 450 can be inserted into the cutting hole 431 to cut off the position where two adjacent spring pieces 610 are connected.

[0065] Reference Figure 3 and Figure 4 According to some embodiments of the present application, the cutting assembly 400 includes a pressure plate 410 and a pressure driving member 420; the pressure driving member 420 is arranged on the feeding base 100 and is located beside the moving path of the bent portion 612 of the spring piece 610. The pressure driving member 420 drives the connected pressure plate 410 to make the pressure plate 410 close to the bent portion 612 of the spring piece 610. The side surfaces of the pressure plate 410 and the feeding base 100 cooperate to clamp the bent portion 612 of the spring piece 610.

[0066] It can be understood that when the bent spring piece 610 moves to the cutting assembly 400, the bent portion 612 of the spring piece 610 is located between the feeding base 100 and the pressing plate 410, and the pressing drive 420 drives the pressing plate 410 to approach the bent portion 612, and the pressing plate 410 and the feeding base 100 cooperate to press the bent portion 612 to position the metal strip 600. The connecting piece 620 and the riveted portion 611 of the spring piece 610 are supported by the cutting bottom die 430, and the connecting piece 620 corresponds to the cutting hole 431. The cutting drive 460 drives the cutting punch 450 to press down through the cutting connecting plate 440, and the cutting punch 450 is inserted into the cutting hole 431 to punch down the connecting piece 620, so that the connecting piece 620 is separated from the riveted portion 611 of the spring piece 610, thereby separating the two adjacent spring pieces 610.

[0067] Reference Figure 4 According to some embodiments of the present application, a vertical positioning groove 432 is formed by cutting off the side surface of the bottom mold 430 , and the positioning groove 432 is used to snap into the bent portion 612 of the spring piece 610 to position the bent portion 612 .

[0068] Reference Figure 1 According to some embodiments of the present application, it also includes an unwinding component 500, which is used to unwind the metal strip 600 onto the feeding base 100.

[0069] Reference Figure 1 According to the second aspect of the present application, the riveting machine includes the spring forming mechanism 1000 of the first aspect.

[0070] The riveting machine according to the second embodiment of the present application has at least the following beneficial effects: including all the beneficial effects of the spring forming mechanism 1000 of the first embodiment, which will not be repeated here.

[0071] The embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the present application. In addition, the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

Claims

1. The spring sheet forming mechanism is characterized in that: include: A material feeding base, wherein the material feeding base is used to pass a metal material belt, and the metal material belt is formed by connecting a plurality of spring sheets; A feeding assembly, the feeding assembly is used to drive the metal strip forward; A bending assembly, the bending assembly is used to bend the spring pieces in the metal strip; the bending assembly includes a bending connecting plate, a bending punch, a bending driving member and a bending bottom die, the bending driving member is arranged on the feeding base, the bending driving member drives and connects the bending connecting plate, the bending punch is arranged on the bending connecting plate, and the bending punch is located above the conveying path of the metal strip, the bending bottom die is arranged on the feeding base and is located below the moving path of the metal strip, the bending driving member can drive the bending connecting plate to drive the bending punch to rise and fall, so that the bending punch cooperates with the bending bottom die to bend the spring pieces in the metal strip; the bending punch includes a first punch and a second punch , the bending bottom die includes a first bottom die and a second bottom die, the first punch and the second punch are distributed along the conveying direction of the metal strip, the first punch cooperates with the first bottom die to bend the spring sheet, and the second punch cooperates with the second bottom die to bend the spring sheet, wherein the first bottom die has a first supporting surface and a first bending surface, the second bottom die has a second supporting surface and a second bending surface, the first supporting surface and the second supporting surface are used to support the spring sheet part, the first bending surface and the second bending surface are respectively used to cooperate with the first punch and the second punch to bend the spring sheet, and the angle between the first supporting surface and the first bending surface is greater than the angle between the second supporting surface and the second bending surface; A cutting assembly, the cutting assembly is used to cut the metal strip to separate adjacent spring sheets; Among them, the feeding assembly, the bending assembly, and the cutting assembly are sequentially arranged on the feeding base along the conveying direction of the metal strip.

2. The spring sheet forming mechanism according to claim 1, characterized in that: The feeding assembly includes a feeding connection plate, a feeding push plate, a first fastener, a second fastener, a tension spring, a rotating shaft and a feeding drive member, wherein the feeding drive member is arranged on the material feeding base, and the feeding drive member is driven and connected to the feeding connection plate, so as to make the feeding connection plate reciprocate along the conveying direction of the metal strip; the rotating shaft passes through the feeding connection plate and the feeding push plate in a horizontal direction, and the feeding push plate is rotatably arranged on the feeding connection plate through the rotating shaft; The first fastener is horizontally arranged on the feeding connecting plate, the second fastener is horizontally arranged on the feeding push plate, and both ends of the tension spring are hung on the first fastener and the second fastener so that the feeding end of the feeding push plate is tilted downward.

3. The spring sheet forming mechanism according to claim 2, characterized in that: The feeding assembly also includes a feeding guide plate, which is arranged on the feeding base, and a gap for passing the metal strip is formed between the feeding guide plate and the feeding base. An avoidance groove is opened on the feeding guide plate, and the avoidance groove moves along the conveying direction of the metal strip. The feeding end of the feeding push plate can be slidably arranged in the avoidance groove.

4. The spring sheet forming mechanism according to claim 3, characterized in that: The feeding end of the feeding push plate has a pushing surface and a guide surface, and the feeding end of the feeding push plate can be inserted into the positioning hole of the metal strip; when the feeding push plate moves along the conveying direction of the metal strip, the pushing surface abuts against the inner wall of the positioning hole to push the metal strip; when the feeding push plate moves in the opposite direction of the conveying direction of the metal strip, the guide surface slides with the inner wall of the positioning hole to make the feeding end exit the positioning hole.

5. The spring sheet forming mechanism according to claim 1, characterized in that: The bending assembly includes a bending positioning drive component and a bending positioning plate. The bending positioning drive component is arranged on the feeding base. A positioning column is arranged at the lower end of the bending positioning plate. The bending positioning plate is located above the metal strip conveying path. The bending positioning drive component drives and connects the bending positioning plate so that the positioning column can be inserted into the positioning hole of the metal strip.

6. The spring sheet forming mechanism according to claim 1, characterized in that: The cutting assembly includes a cutting bottom die, a cutting connecting plate, a cutting punch, and a cutting driving member; the cutting bottom die is arranged on the feeding base, the cutting bottom die is located below the moving path of the metal strip, a cutting hole is opened on the cutting bottom die, the cutting driving member is arranged on the feeding base, the cutting driving member is connected to the cutting punch through the cutting connecting plate, and is used to lift and lower the cutting punch, the cutting punch is located above the cutting bottom die, and the cutting punch can be inserted into the cutting hole to cut off the connection position of two adjacent spring pieces.

7. The spring sheet forming mechanism according to claim 6, characterized in that: The cutting assembly includes a pressure plate and a pressure driving member; the pressure driving member is arranged on the feeding base and is located beside the moving path of the bent part of the spring sheet, and the pressure driving member drives the pressure plate to be connected to the pressure plate, so as to make the pressure plate close to the bent part of the spring sheet, and the side surfaces of the pressure plate and the feeding base cooperate to clamp the bent part of the spring sheet.

8. The spring sheet forming mechanism according to claim 7, characterized in that: A vertical positioning groove is formed on the side surface of the cutting bottom mold, and the positioning groove is used to clamp the bent part of the spring sheet.

9. The spring sheet forming mechanism according to claim 1, characterized in that: It also includes an unwinding assembly, which is used to unwind the metal strip to the feeding base.

10. Riveting machine, characterized in that, The invention comprises the spring sheet forming mechanism as claimed in any one of claims 1 to 9.

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