A continuous stamping process for solar quick installation bracket

Abstract

The present invention belongs to the technical field of stamping processing, and relates to a continuous stamping process for a solar quick installation bracket, and the steps include: punching positioning holes, pre-cutting, wrinkling, embossing, side cutting, trimming, flanging, shaping, punching and blanking. This process first pre-cuts the edges to make the outer side of the material easy to emboss and deform, and wrinkles the inner side of the forming area to first have good structural rigidity, and then embosses the outer side of the forming area into a convex hull structure, so as to quickly obtain the end shape of the arc portion and the three-dimensional complex structure; wrinkling makes the fold line of the flanging at the lowest point of the arc portion, reducing the height of the flanging, and the forming of the arc portion The forming of the flanging is independent of the upper and lower parts of the material, and does not interfere with each other, thereby improving the structural accuracy; adopting a one-out-two product arrangement method, two products are processed simultaneously on both sides of the connection area, and the manufacturing efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of stamping processing, and in particular to a continuous stamping process for a solar quick-installation bracket. Background Art

[0002] Figure 1 The figure shows a solar quick installation bracket 1, which includes an arc-shaped portion 11 with a concave center, a flat plate portion 12 located at one end of the arc-shaped portion 11 and extending horizontally outward, a short plate portion 13 bent downward 90° from the outer edge of the flat plate portion 12, and two side plate portions 14 extending downward from the edges of both sides of the arc-shaped portion 11 and the flat plate portion 12. A square through hole 122 is provided in the center of the two side plate portions 14 and the short and square concave surface 121. The cross-section of the arc-shaped portion 11 along the width direction is a wavy structure and the wavy structure extends to the edge of the square concave surface 121. A plurality of side holes 141 are provided on the side plate portion 14.

[0003] Chinese patent CN115430773A discloses a continuous stamping method for a high-low side folded edge structural member. The product here is a U-shaped structure with high and low sides in the middle. However, the arc portion 11 of the solar quick installation bracket 1 has a large arc, and the structure around the flat portion 12 is more complicated, and the molding difficulty is different. The molding difficulties of this solar quick installation bracket 1 are as follows:

[0004] 1. The arc-shaped portion 11, the flat portion 12 and the side plate portion 14 are deformed from the same plane material, and the side plate portion 14 is a fan-shaped structure. If the flat portion 12 is used as the reference surface for the side plate portion 14 to be turned up, the material is easily broken;

[0005] 2. The flat plate portion 12, the short plate portion 13 and the side plate portion 14 are integrally connected, but are basically in a perpendicular relationship between each other, and materials on different surfaces will affect each other.

[0006] Therefore, it is necessary to design a new molding method to solve the above problems. Summary of the invention

[0007] The main purpose of the present invention is to provide a continuous stamping process for a solar quick installation bracket, which can continuously form a solar quick installation bracket, improve process continuity, ensure structural accuracy, and prevent product breakage.

[0008] The present invention achieves the above-mentioned purpose through the following technical solutions: a continuous stamping process for a solar quick installation bracket, which is used to form a solar quick installation bracket, wherein the solar quick installation bracket comprises an arc-shaped portion concave in the middle, a flat plate portion located at one end of the arc-shaped portion and extending horizontally outward, a short plate portion bent downward 90° from the outer edge of the flat plate portion, and two side plate portions extending downward from the arc-shaped portion and the edges of both sides of the flat plate portion, the two side plate portions are integrally connected to the two sides of the short plate portion at 90°, the middle of the flat plate portion is concave to form a square concave surface and a square through hole is provided in the center of the square concave surface, the cross-section of the arc-shaped portion along the width direction is a wavy structure and the wavy structure extends to the edge of the square concave surface, and a plurality of side holes are provided on the side plate portion, and the process steps include:

[0009] S1. Punching positioning holes: Provide a material strip, wherein the processing unit range of the material strip includes a connection area located in the middle of the material strip and two forming areas located on both sides of the connection area, wherein the connection area is a cross-shaped structure and the forming area is a U-shaped structure. The material strip is conveyed step by step along the conveying direction, and a central positioning hole is punched out in the center of the connection area;

[0010] S2, pre-cutting: taking the central positioning hole as a reference, a peninsula structure is cut out on the outside of the forming area, the outside of the peninsula structure is a pre-formed contour formed by the cross section, and a deformation margin is left on the edge of the pre-formed contour;

[0011] S3, wrinkling: with the central positioning hole as a reference, the peninsula structure is punched into a curved portion close to the central positioning hole and a flat portion away from the central positioning hole, the flat portion is parallel to and lower than the plane where the connecting area is located, and an inner wave portion is formed in the middle of the peninsula structure, and the inner wave portion extends from the flat portion to the side of the central portion of the curved portion close to the material strip;

[0012] S4, punching a convex shape: with the central positioning hole as a reference, punch a convex shape upward at the middle position of the planar portion, wherein the convex shape comprises an outer wave portion connected to the inner wave portion, the flat plate portion located on the upper part of the outer wave portion, an outer plate portion bent downward by 90° from the outer edge of the flat plate portion, and an upper plate portion extending downward from the front and rear sides of the flat plate portion, wherein the inner wave portion and the outer wave portion together constitute the arc-shaped portion, and the flat plate portion has the square concave surface;

[0013] S5, side cutting: taking the central positioning hole and the convex bulge as reference, side cutting the outer plate portion from the side of the material strip to obtain the short plate portion;

[0014] S6, trimming: taking the central positioning hole as a reference, cutting off the deformation margin portion outside the forming area to obtain a blank, wherein the blank includes the convex bulge and wing portions extending from the lower part of the convex bulge to the front and rear sides, and only the inner side of the convex bulge is connected to the connecting area;

[0015] S7, flanging: taking the central positioning hole and the convex bulge as reference, the two wings are folded down 90°, and the deformed wings and the upper side plate together constitute the side plate;

[0016] S8, shaping: taking the central positioning hole and the convex bulge as a reference, performing overpressure shaping on the side plate portion;

[0017] S9, punching: based on the central positioning hole and the convex hull, the side holes are cut out on the upper sides of the two side plates, and the square through holes are punched out on the square concave surface;

[0018] S10, blanking: using the central positioning hole as a reference, the convex bump is disconnected from the connecting area to obtain two solar quick installation brackets.

[0019] Specifically, in the step of punching the positioning holes, a side positioning hole is punched out at the same time near the side edge of each forming area; the pre-trimming step is divided into two steps, the first step is to cut out two pieces of first waste material based on the two side positioning holes and the center positioning hole, and the second step is to cut out two pieces of second waste material based on the center positioning hole, the second waste material extends to the side edge of the material strip, the side positioning hole is located within the range of the second waste material, the first waste material is closer to the center positioning hole than the second waste, and the cross-section of the first waste material and the second waste material after cutting off forms the pre-molded contour.

[0020] Specifically, the trimming step is divided into three steps. The first trimming step is to cut off four L-shaped wastes located on the four sides of the connecting area to obtain the inner contour of the wing; the second trimming step is to cut out the outer contour of the wing in the first molding area and the middle contour of the wing in the second molding area; the third trimming step is to cut out the middle contour of the wing in the first molding area and the outer contour of the wing in the second molding area; the inner contour, the middle contour and the outer contour are connected in sequence to form the complete contour of the wing.

[0021] Furthermore, the outer contour is completed by a first outer contour and a second outer contour which are closely attached to each other at the stamping position, the first outer contour is closer to the center positioning hole than the second outer contour, and the first outer contour is punched before the second outer contour and removed after the second outer contour.

[0022] Furthermore, there is a connection area reinforcement step between the trimming step and the flanging step. In the connection area reinforcement step, based on the central positioning hole and the convex bulge, a longitudinal wrinkled portion and two transverse wrinkled portions are punched on the connection area. The two transverse wrinkled portions are respectively located on the left and right sides of the central positioning hole, and the longitudinal wrinkled portion is located between the front and rear central positioning holes.

[0023] Furthermore, the forming of the longitudinal corrugated portion is completed simultaneously with the third trimming step, and the forming of the two transverse corrugated portions is completed simultaneously with the flanging.

[0024] Specifically, there is a connection area reinforcement step between the trimming step and the flanging step. The connection area reinforcement step takes the central positioning hole and the convex bulge as a reference, and punches a longitudinal wrinkled portion and two transverse wrinkled portions on the connection area. The two transverse wrinkled portions are respectively located on the left and right sides of the central positioning hole, and the longitudinal wrinkled portion is located between the front and rear central positioning holes.

[0025] Furthermore, in the flanging step, the lower die includes two flanging support blocks and two pairs of side support blocks, the upper die includes two pairs of flanging punches, each forming area corresponds to a flanging support block, a pair of flanging punches and a pair of side support blocks, the pair of flanging punches are located on the front and rear sides of the same flanging support block, a pair of side support blocks are located further outward of the flanging punches, the side support blocks are against the outer side surfaces of the flanging punches, and the outer side surfaces are facing away from the flanging support blocks.

[0026] Furthermore, in the shaping step, the lower die includes two shaping support blocks corresponding to each blank position and two pairs of side shaping blocks respectively located on the front and rear sides of the two shaping support blocks, the upper die includes two pairs of shaping side push punches that respectively drive the two pairs of side shaping blocks to correct the angles of the side plate portions, the front and rear side surfaces of the shaping support blocks face obliquely downward, an outer ejector pin and an inner ejector pin are floatingly arranged in the shaping support blocks, the end of the outer ejector pin acts on the lower surface of the square concave surface and is located within the design range of the square through hole, and the end of the inner ejector pin acts on the lower surface of the outer wavy portion.

[0027] Specifically, in the punching step, the lower die includes two punching support blocks corresponding to each blank position and a plurality of side punching assemblies located on the front and rear sides of the punching support blocks, and the upper die includes a plurality of punching side push punches that drive the side punching assemblies to cut side holes on the side plate portion. Side blanking holes are provided on the side surfaces of the punching support blocks, and the shapes and positions of the side punching assemblies and the side blanking holes correspond to the side holes.

[0028] Furthermore, in the punching step, an upper blanking hole is provided on the upper surface of the punching support block, and a square punch is provided on the upper die. The shapes and positions of the upper blanking hole and the square punch correspond to the square through hole.

[0029] The beneficial effects of the technical solution of the present invention are:

[0030] 1. This process makes the outer side of the material easy to convex and deform by pre-cutting, and makes the inner side of the forming area have better structural rigidity by wrinkling, and then the outer side of the forming area is made into a convex hull structure by convexing, so as to quickly obtain the end shape of the arc part and the three-dimensional complex structure;

[0031] 2. Wrinkling makes the folding line of the flange at the lowest point of the arc part, reducing the flange height. The forming of the arc part's flange is independent of the upper and lower parts of the material, without interfering with each other, thus improving the structural accuracy;

[0032] 3. The one-out-two product arrangement is adopted, and two products are processed simultaneously on both sides of the connection area, which has high manufacturing efficiency;

[0033] 4. Leave a deformation margin during pre-cutting, and perform side cutting and trimming after completing wrinkling and convexification, so that the outer contour of the sheet meets the requirements of the product appearance;

[0034] 5. The longitudinal and transverse corrugated parts make the connection area have higher structural strength in the horizontal and vertical directions, so as to avoid bending and deformation of both sides of the connection area under the gravity of the forming area;

[0035] 6. The outer side of the falling position of the flanging punch is supported by a side support block, thereby suppressing the deformation of the flanging punch;

[0036] 7. In the shaping steps, the waste material in the square through-hole area is used as the stripping position to distribute the stripping force and avoid indentation on the appearance of the product;

[0037] 8. Side holes and square through holes can be cut out at the same station, saving molds and increasing processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 A three-dimensional diagram of a quick-install bracket for solar energy;

[0039] Figure 2 It is the structural change diagram of the material strip;

[0040] Figure 3 for Figure 2 A partial enlarged view of position A in the middle;

[0041] Figure 4 for Figure 2 A partial enlarged view of position B in the middle;

[0042] Figure 5 This is the mold closing state diagram of the trimming step;

[0043] Figure 6A three-dimensional diagram of the main components of the lower mold of the flanging step mold;

[0044] Figure 7 A three-dimensional diagram of the main components of the lower mold of the shaping step mold;

[0045] Figure 8 A three-dimensional image of the die for the punching step.

[0046] The markings in the figure are:

[0047] 1-solar quick installation bracket, 11-arc-shaped portion, 12-flat portion, 121-square concave surface, 122-square through hole, 13-low plate portion, 14-side plate portion, 141-side hole;

[0048] 2-material strip, 21-connecting area, 211-central positioning hole, 212-longitudinal wrinkled portion, 213-lateral wrinkled portion, 22a-first molding area, 22b-second molding area, 221-peninsula structure, 2211-pre-molded contour, 2212-arc portion, 2213-plane portion, 2214-inner wave portion, 222-convex hull, 2221-outer wave portion, 2222-outer plate portion, 2223-upper side plate portion, 223-wing portion, 2231-inner contour, 2232-middle contour, 2233-outer contour, 224-side positioning hole, 225-first waste area;

[0049] 31-L-shaped punch, 32-strip punch, 33-first outer contour punch, 34-second outer contour punch;

[0050] 41- flanging support block, 42- flanging punch, 43- side support block;

[0051] 51-shaping support block, 52-side shaping block, 53-shaping side push punch, 54-external ejector pin, 55-internal ejector pin;

[0052] 61-punching support block, 62-side punching assembly, 63-punching side push punch, 64-square punch. DETAILED DESCRIPTION

[0053] The present invention is further described in detail below with reference to specific embodiments.

[0054] Example:

[0055] A continuous stamping process for a solar quick installation bracket of the present invention is used to form a solar quick installation bracket 1. The solar quick installation bracket 1 includes an arc-shaped portion 11 with a concave middle portion, a flat plate portion 12 located at one end of the arc-shaped portion 11 and extending horizontally outward, a short plate portion 13 bent downward 90° from the outer edge of the flat plate portion 12, and two side plate portions 14 extending downward from the edges of both sides of the arc-shaped portion 11 and the flat plate portion 12. The two side plate portions 14 are integrally connected to both sides of the short plate portion 13 at 90°. The middle of the flat plate portion 12 is concave to form a square concave surface 121, and a square through hole 122 is provided in the center of the square concave surface 121. The cross-section of the arc-shaped portion 11 along the width direction is a wavy structure, and the wavy structure extends to the edge of the square concave surface 121. A plurality of side holes 141 are provided on the side plate portion 14. The process steps include:

[0056] S1. Punching positioning holes: Provide a material strip 2. The processing unit range of the material strip 2 includes a connection area 21 located in the middle of the material strip 2 and two forming areas (a first forming area 22a and a second forming area 22b) located on both sides of the connection area 21. The connection area 21 is a cross-shaped structure, and the forming area is a U-shaped structure. The material strip 2 is conveyed step by step along the conveying direction, and a central positioning hole 211 is punched in the center of the connection area 21. Figure 1 and Figure 2 shown.

[0057] The solar quick installation bracket 1 is obtained by various stamping operations of the material in the forming area. The central positioning hole 211 is the positioning reference of the processing unit range. During the stamping process, the connection area 21 is used to maintain the stepping conveying, and each step is positioned using the positioning hole 211. From the position of the finished product, the connection position of the connection area 21 is one end of the arc portion 11 and opposite to the flat plate portion 12.

[0058] In order to make the pre-cut edge structure more accurate, in the step of punching the positioning holes, a side positioning hole 224 is punched out at a position close to the side edge of each forming area.

[0059] S2, pre-cutting: With the center positioning hole 211 as the reference, a peninsula structure 221 is cut out on the outside of the forming area. The outside of the peninsula structure 221 is a pre-formed profile 2211 formed by the cross section. The edge of the pre-formed profile 2211 leaves a deformation margin, such as Figure 2 shown.

[0060] After punching the positioning holes, the adjacent forming areas are still connected, but in order to facilitate the flow of material during embossing, the outside of the forming area must be cut off on three sides to make the outside of the material easy to emboss and deform. However, the uncertainty of the shrinkage range of the material after embossing must be considered. Therefore, when cutting out the pre-formed contour 2211, the change in contour position caused by embossing shrinkage must also be considered, that is, the edge of the contour must be widened. This widened part is the so-called deformation allowance.

[0061] During the actual processing, in order to prevent the tool from getting stuck, the pre-trimming step is divided into two steps. In the first step, two pieces of first waste materials are cut out with the two side positioning holes 224 and the center positioning hole 211 as the reference (the positions correspond to the first waste area 225). In the second step, two pieces of second waste materials are cut out with the center positioning hole 211 as the reference. The second waste materials extend to the side of the material strip 2. The side positioning holes 224 are located within the range of the second waste materials. The first waste materials are closer to the center positioning hole 211 than the second waste materials. The cross-section of the first waste materials and the second waste materials after cutting off forms a preformed contour 2211.

[0062] The preformed profile 2211 is generally U-shaped. When cutting it at one time, the waste is easy to get stuck on the peninsula structure 221, so the pre-cutting method adopts the method of cutting the two sides first and then cutting the middle to convert the waste into small pieces that are easy to discharge, thereby avoiding the risk of crushing caused by the waste remaining on the material strip 2.

[0063] S3, corrugation: With the center positioning hole 211 as a reference, the peninsula structure 221 is punched into a curved portion 2212 close to the center positioning hole 211 and a flat portion 2213 away from the center positioning hole 211. The flat portion 2213 is parallel to and lower than the plane where the connecting area 21 is located. The middle of the peninsula structure 221 forms an inner wave portion 2214, which extends from the flat portion 2213 to the side of the curved portion 2212 close to the middle of the material strip 2. Figure 2 shown.

[0064] S4, convex: With the central positioning hole 211 as a reference, a convex bump 222 is punched upwards at the middle position of the flat portion 2213. The convex bump 222 has an outer wave portion 2221 connected to the inner wave portion 2214, a flat plate portion 12 located above the outer wave portion 2221, an outer plate portion 2222 bent downward 90° from the outer edge of the flat plate portion 12, and an upper plate portion 2223 extending downwards from the front and rear sides of the flat plate portion 12. The inner wave portion 2214 and the outer wave portion 2221 together form an arc portion 11, and the flat plate portion 12 has a square concave surface 121. Figure 2 and Figure 3 shown.

[0065] The deformation range of the corrugating step and the deformation range of the embossing step are actually divided by the lowest position of the arc portion 11. The corrugating step obtains a three-dimensional structure close to the middle of the material strip 2, so that the inner side of the molding area first has good structural rigidity. The structure of the inner wave portion 2214 is the half structure of the arc portion 11, and the structure of the outer wave portion 2221 is the other half structure of the arc portion 11. The more important function of the embossing step is to form the shape of the flat plate portion 12, the surface of the short plate portion 13 (i.e., the outer plate portion 2222), and the upper structure of the side plate portion 14 (i.e., the upper side plate portion 2223) at one time, so that the three parts are basically in a perpendicular relationship between the two but can be guaranteed to be connected as one piece, so that the arc portion 11 and the terminal shape of the three-dimensional complex structure can be quickly obtained.

[0066] S5, side cutting: Based on the central positioning hole 211 and the convex bulge 222, the outer plate portion 2222 is side cut from the side of the material strip 2 to obtain the short plate portion 13. Figure 2 shown.

[0067] The short plate portion 13 is only different from the outer plate portion 2222 in height, so the side cutting step is equivalent to the precision cutting of the edge of the short plate portion 13, which will basically not affect the deformation of other surfaces, so that the outer contour of the sheet meets the requirements of the product appearance.

[0068] S6. Trimming: With the center positioning hole 211 as a reference, cut off the deformation margin outside the forming area to obtain a blank, which includes a convex hump 222 and wing portions 223 extending from the lower part of the convex hump 222 to the front and rear sides, and only the inner side of the convex hump 222 is connected to the connecting area 21.

[0069] The trimming step is to remove the deformation allowance so that the outer edge of the blank meets the contour requirements of the finished product.

[0070] The specific method of the trimming step is divided into three steps. The first trimming step is to cut off the four L-shaped waste materials located on the four sides of the connection area 21 (corresponding to the L-shaped waste area 226, obtained by punching with the L-shaped punch 31) to obtain the inner contour 2231 of the wing 223; the second trimming step is to cut out the outer contour 2233 of the wing 223 in the first molding area 22a (corresponding to the first group of first outer contour punches 33 and second outer contour punches 34) and the middle contour 2232 of the wing 223 in the second molding area 22b (corresponding to the first strip punch 32); the third trimming step is to cut out the middle contour 2232 of the wing 223 in the first molding area 22a (corresponding to the second strip punch 32) and the outer contour 2233 of the wing 223 in the second molding area 22b (corresponding to the second group of first outer contour punches 33 and second outer contour punches 34); the inner contour 2231, the middle contour 2232 and the outer contour 2233 are connected in sequence to form a complete contour of the wing 223. Figure 5 shown.

[0071] The reason why three working steps are used is that each cutting area surrounds the wing 223 on three sides, so the three sections of waste material should be cut separately to avoid crushing caused by material jamming. For the two forming areas, the punches for cutting the middle contour 2232 are too close together, and there is a risk of tool jamming, so the punches for cutting the middle contour 2232 twice should be staggered to two working steps, and the middle contour punch on one side and the outer contour punch on the other side in the two working steps are placed together to reduce the tool jamming problem. However, the position of the punch for cutting the outer contour 2233 is still relatively close to the position of the punch for cutting the center contour 2232 (i.e., the strip punch 32). The punch for cutting the center contour 2232 has a long and narrow range, while the punch for cutting the outer contour 2233 has a larger area. Therefore, the punch for cutting the outer contour 2233 is divided into two parts, namely, a first outer contour punch 33 and a second outer contour punch 34. Moreover, the first outer contour punch 33 must be removed from the material first, so that the second outer contour punch 34 is farther away from the strip punch 32, which can more effectively avoid the problem of tool jamming.

[0072] S8, flanging: taking the central positioning hole 211 and the convex bump 222 as reference, the two wing portions 223 are folded down 90°, and the deformed wing portions 223 and the upper side plate portion 2223 together form the side plate portion 14.

[0073] Before flanging, the wing portion 223 is vertically connected to one side of the upper side plate portion 2223, and finally turned to the same plane, so that the side plate portion 14 can be obtained. Because the folding line of the flanging is at the lowest point of the arc portion 11 due to the wrinkling, the height of the flanging is reduced, and the forming of the arc portion 11 and the flanging are independent of the upper and lower parts of the material, and do not interfere with each other, thereby improving the structural accuracy.

[0074] Because the remaining material in the connection area 21 is narrow, the molding area hanging on both sides of the connection area 21 is prone to drooping and affecting transportation, so the connection area should be reinforced between the trimming step and the flanging step, that is, based on the center positioning hole 211 and the convex bulge 222, a longitudinal wrinkled portion 212 and two transverse wrinkled portions 213 are punched on the connection area 21, and the two transverse wrinkled portions 213 are respectively located on the left and right sides of the center positioning hole 211, and the longitudinal wrinkled portion 212 is located between the front and rear center positioning holes 211. Because the wrinkled portion can improve the strength of the material in the cross-sectional direction, for the connection area 21, the longitudinal wrinkled portion 212 and the transverse wrinkled portion 213 can make the connection area 21 have higher structural strength in the horizontal and vertical directions, and avoid the two sides of the connection area 21 from being bent and deformed under the gravity of the molding area. In order to save steps, the molding of the longitudinal wrinkled portion 212 is completed at the same time as the third trimming step, and the molding of the two transverse wrinkled portions 213 is completed at the same time during flanging.

[0075] In the flanging step, the lower die includes two flanging support blocks 41 and two pairs of side support blocks 43, and the upper die includes two pairs of flanging punches 42. Each forming area corresponds to a flanging support block 41, a pair of flanging punches 42 and a pair of side support blocks 43. The pair of flanging punches 42 are located at the front and rear sides of the same flanging support block 41, and the pair of side support blocks 43 are located further outside the flanging punch 42. The side support blocks 43 abut against the outer side surface of the flanging punch 42, and the outer side surface faces away from the flanging support blocks 41. Because the flanging punch 42 will be subjected to the outward reaction force of the blank when flanging, it is easy to cause an impact on the flanging punch 42 during rapid processing, so the outer side of the flanging punch 42 is supported by the side support blocks 43 at the falling position of the flanging punch 42, thereby suppressing the deformation of the flanging punch 42.

[0076] S9, shaping: Based on the central positioning hole 211 and the convex bump 222, the side plate 14 is subjected to overpressure shaping. Figure 2 and Figure 7 shown.

[0077] In the shaping step, the lower die includes two shaping support blocks 51 corresponding to each blank position and two pairs of side shaping blocks 52 respectively located on the front and rear sides of the two shaping support blocks 51, and the upper die includes two pairs of shaping side push punches 53 that respectively drive the two pairs of side shaping blocks 52 to correct the angle of the side plate portion 14. The front and rear side surfaces of the shaping support block 51 face obliquely downward, and an outer ejector pin 54 and an inner ejector pin 55 are floatingly arranged in the shaping support block 51. The end of the outer ejector pin 54 acts on the lower surface of the square concave surface 121 and is located within the design range of the square through hole 122, and the end of the inner ejector pin 55 acts on the lower surface of the outer wave portion 2221.

[0078] The flanging step can only turn the wing 223 to the vertical direction, but the material will rebound, so the entire side panel 14 must be shaped and corrected, so the side shaping block 52 must over-press the side panel 14 at an angle, and then the side panel 14 rebounds and reaches the target position. Because the shaping support block 51 here will present a structure that is wide at the top and narrow at the bottom, the shaping needs to be completed using a side push structure. The over-pressed sheet will also be stuck on the shaping support block 51, so the shaping step requires the use of an outer ejector pin 54 and an inner ejector pin 55 for stripping, wherein the outer ejector pin 54 uses the waste material in the area of ​​the square through hole 122 as the stripping position to share the stripping force of the inner ejector pin 55 to avoid causing indentations on the product's exterior surface.

[0079] S10, punching: Based on the central positioning hole 211 and the convex bulge 222, cut out the side holes 141 on the two side plate parts 14, and punch out the square through holes 122 on the square concave surface 121. Figure 4 and Figure 8 shown.

[0080] In the punching step, the lower die includes two punching support blocks 61 corresponding to each blank position and a plurality of side punching components 62 located on the front and rear sides of the punching support blocks 61; the upper die includes a plurality of punching side push punches 63 for driving the side punching components 62 to cut out side holes 141 on the side plate portion 14; the side of the punching support block 61 is provided with side blanking holes (not exposed); the shapes and positions of the side punching components 62 and the side blanking holes correspond to the side holes 141; the upper surface of the punching support block 61 is also provided with upper blanking holes (not exposed); a square punch 64 is provided on the upper die; the shapes and positions of the upper blanking holes and the square punch 64 correspond to the square through holes 122.

[0081] After the side plate 14 and the square concave surface 121 have been formed, the side hole 141 and the square through hole 122 can be directly processed. Here, the side hole 141 and the square through hole 122 can be cut out at the same station, saving molds and having a relatively high processing efficiency.

[0082] S11, blanking: using the central positioning hole 211 as a reference, the convex bump 222 is disconnected from the connecting area 21 to obtain two solar quick installation brackets 1. Figure 2 shown.

[0083] After punching, the solar quick installation bracket 1 has been completely formed, and is only connected to the connection area 21 by the material inside the convex bump 222, so the solar quick installation bracket 1 can fall off as long as the connection is cut off. This process adopts a one-out-two product arrangement method, which can process two products on both sides of the connection area 21 at the same time, and has high manufacturing efficiency.

[0084] 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. A continuous stamping process for a solar quick installation bracket, characterized in that: Used to form a solar quick installation bracket, the solar quick installation bracket includes an arc-shaped portion concave in the middle, a flat plate portion located at one end of the arc-shaped portion and extending horizontally outward, a short plate portion bent downward 90° from the outer edge of the flat plate portion, and two side plates extending downward from the arc-shaped portion and the edges of both sides of the flat plate portion, the two side plates are integrally connected to the two sides of the short plate portion at 90°, the middle of the flat plate portion is concave to form a square concave surface and a square through hole is provided in the center of the square concave surface, the cross-section of the arc-shaped portion along the width direction is a wavy structure and the wavy structure extends to the edge of the square concave surface, and a plurality of side holes are provided on the side plate portion, and the process steps include: S1. Punching positioning holes: Provide a material strip, wherein the processing unit range of the material strip includes a connection area located in the middle of the material strip and two forming areas located on both sides of the connection area, wherein the connection area is a cross-shaped structure and the forming area is a U-shaped structure. The material strip is conveyed step by step along the conveying direction, and a central positioning hole is punched out in the center of the connection area; S2, pre-cutting: taking the central positioning hole as a reference, a peninsula structure is cut out on the outside of the forming area, the outside of the peninsula structure is a pre-formed contour formed by the cross section, and a deformation margin is left on the edge of the pre-formed contour; S3, wrinkling: with the central positioning hole as a reference, the peninsula structure is punched into a curved portion close to the central positioning hole and a flat portion away from the central positioning hole, the flat portion is parallel to and lower than the plane where the connecting area is located, and an inner wave portion is formed in the middle of the peninsula structure, and the inner wave portion extends from the flat portion to the side of the central portion of the curved portion close to the material strip; S4, punching a convex shape: with the central positioning hole as a reference, punch a convex shape upward at the middle position of the planar portion, wherein the convex shape comprises an outer wave portion connected to the inner wave portion, the flat plate portion located on the upper part of the outer wave portion, an outer plate portion bent downward by 90° from the outer edge of the flat plate portion, and an upper plate portion extending downward from the front and rear sides of the flat plate portion, wherein the inner wave portion and the outer wave portion together constitute the arc-shaped portion, and the flat plate portion has the square concave surface; S5, side cutting: taking the central positioning hole and the convex bulge as reference, side cutting the outer plate portion from the side of the material strip to obtain the short plate portion; S6, trimming: taking the central positioning hole as a reference, cutting off the deformation margin portion outside the forming area to obtain a blank, wherein the blank includes the convex bulge and wing portions extending from the lower part of the convex bulge to the front and rear sides, and only the inner side of the convex bulge is connected to the connecting area; S7, flanging: taking the central positioning hole and the convex bulge as reference, the two wings are folded down 90°, and the deformed wings and the upper side plate together constitute the side plate; S8, shaping: taking the central positioning hole and the convex bulge as a reference, performing overpressure shaping on the side plate portion; S9, punching: based on the central positioning hole and the convex hull, the side holes are cut out on the upper sides of the two side plates, and the square through holes are punched out on the square concave surface; S10, blanking: using the central positioning hole as a reference, the convex bump is disconnected from the connecting area to obtain two solar quick installation brackets.

2. The continuous stamping process for solar quick installation bracket according to claim 1 is characterized in that: In the step of punching positioning holes, a side positioning hole is punched out at the position close to the side of each forming area at the same time; the pre-trimming step is divided into two steps, the first step is to cut out two pieces of first waste material based on the two side positioning holes and the central positioning hole, and the second step is to cut out two pieces of second waste material based on the central positioning hole. The second waste material extends to the side of the material strip, and the side positioning hole is located within the range of the second waste material. The first waste material is closer to the central positioning hole than the second waste, and the cross-section of the first waste material and the second waste material after cutting forms the pre-molded contour.

3. The continuous stamping process for solar quick installation bracket according to claim 1 is characterized in that: The trimming step is divided into three steps. The first trimming step is to remove four L-shaped wastes located on the four sides of the connection area to obtain the inner contour of the wing; The second trimming step cuts out the outer contour of the wing in the first molding area and the middle contour of the wing in the second molding area, and the third trimming step cuts out the middle contour of the wing in the first molding area and the outer contour of the wing in the second molding area; the inner contour, the middle contour and the outer contour are connected in sequence to form the complete contour of the wing.

4. The continuous stamping process for solar quick installation bracket according to claim 3 is characterized in that: There is a connection area reinforcement step between the trimming step and the flanging step. In the connection area reinforcement step, based on the central positioning hole and the convex bulge, a longitudinal wrinkled portion and two transverse wrinkled portions are punched on the connection area. The two transverse wrinkled portions are respectively located on the left and right sides of the central positioning hole, and the longitudinal wrinkled portion is located between the front and rear central positioning holes.

5. The continuous stamping process for solar quick installation bracket according to claim 4 is characterized in that: The forming of the longitudinal corrugated portion is completed simultaneously with the third trimming step, and the forming of the two transverse corrugated portions is completed simultaneously during the flanging.

6. The continuous stamping process for solar quick installation bracket according to claim 1 is characterized in that: In the flanging step, the lower die includes two flanging support blocks and two pairs of side support blocks, the upper die includes two pairs of flanging punches, each forming area corresponds to a flanging support block, a pair of flanging punches and a pair of side support blocks, the pair of flanging punches are located on the front and rear sides of the same flanging support block, a pair of side support blocks are located further outward of the flanging punches, the side support blocks are against the outer side surfaces of the flanging punches, and the outer side surfaces are facing away from the flanging support blocks.

7. The continuous stamping process for solar quick installation bracket according to claim 6 is characterized in that: In the shaping step, the lower die includes two shaping support blocks corresponding to each blank position and two pairs of side shaping blocks respectively located on the front and rear sides of the two shaping support blocks, and the upper die includes two pairs of shaping side push punches that respectively drive the two pairs of side shaping blocks to correct the angles of the side plate portions, and the front and rear side surfaces of the shaping support blocks face obliquely downward, and an outer ejector and an inner ejector are floatingly arranged in the shaping support blocks, the end of the outer ejector acts on the lower surface of the square concave surface and is located within the design range of the square through hole, and the end of the inner ejector acts on the lower surface of the outer wave portion.

8. The continuous stamping process for solar quick installation bracket according to claim 1 is characterized in that: In the punching step, the lower die includes two punching support blocks corresponding to each blank position and a plurality of side punching assemblies located on the front and rear sides of the punching support blocks, and the upper die includes a plurality of punching side push punches that drive the side punching assemblies to cut side holes on the side plate portion. Side blanking holes are provided on the side surfaces of the punching support blocks, and the shapes and positions of the side punching assemblies and the side blanking holes correspond to the side holes.

9. The continuous stamping process for solar quick installation bracket according to claim 8, characterized in that: In the punching step, an upper blanking hole is further provided on the upper surface of the punching support block, and a square punch is provided on the upper die. The shapes and positions of the upper blanking hole and the square punch correspond to the square through hole.

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