Fuel tank chuck and manufacturing process thereof

Abstract

The application discloses a fuel tank chuck and a manufacturing process thereof in the field of fuel tank chucks. The fuel tank chuck comprises an annular chuck body, a center axis of the chuck body is vertically arranged, a circle of process holes are arranged on the chuck body and are distributed at equal intervals in the circumferential direction, a plurality of support pressing plates are arranged on the outer periphery of the chuck body and are distributed at intervals in the circumferential direction, and a plurality of L-shaped clamping plates are arranged on the outer periphery of the chuck body and are distributed at intervals in the circumferential direction. The manufacturing process of the fuel tank chuck can continuously, quickly and efficiently produce the fuel tank chuck, and improves the production and processing efficiency of the chuck.

Description

Technical Field

[0001] This invention belongs to the field of fuel tank chucks, and specifically relates to a fuel tank chuck and its manufacturing process. Background Technology

[0002] In the prior art, there is a lightweight fuel tank fuel pump fixing assembly, with patent application number 201811352387.1 and application date of 2018.11.14. Its structure includes a fixing ring and a locking ring that match each other. The fixing ring has multiple clamping plates formed on its surface facing upward, which cooperate with the locking ring. Each clamping plate includes a support portion formed on the upper surface of the fixing ring. The top end of the support portion is folded towards the center of the fixing ring to form an upper pressing portion. The locking ring is machined with an arc-shaped notch along the circumferential direction. The circumferential portion between the arc-shaped notches serves as a lower pressing portion that cooperates with and is fixed to the clamping plates.

[0003] Most automotive fuel tanks are made of plastic. The fuel pump is mounted on the fuel tank and secured to it using a retaining ring and a locking ring. During injection molding, the retaining ring is typically injection-molded directly onto the fuel tank to increase strength. The fuel pump is first installed on the retaining ring, and then the locking ring secures the fuel pump to the retaining ring. The retaining ring is the fuel tank chuck, and currently, there is a lack of manufacturing processes that can continuously and efficiently produce fuel tank chucks. Summary of the Invention

[0004] One of the objectives of this invention is to provide a fuel tank chuck manufacturing process that enables continuous, rapid, and efficient production of fuel tank chucks, thereby improving chuck production and processing efficiency.

[0005] The objective of this invention is achieved as follows: a fuel tank chuck manufacturing process, comprising the following steps:

[0006] (1) Unwind and level the coiled strip, and pull the strip into a stamping machine equipped with a progressive die. The strip moves in one direction in a stepping manner. The strip has multiple work stations corresponding to the stamping machine. Each work station of the stamping machine is equipped with a positioning center to determine the circumferential and radial directions of the fuel tank chuck to be processed.

[0007] (2) Along the direction of the material strip, at the S1 station, the stamping machine works to punch out a circle of process holes that are evenly distributed in the circumferential direction around the positioning center of the S1 station of the material strip.

[0008] (3) Along the direction of the material strip, at the S2 station, a small diameter circular hole is pre-punched on the material strip with the positioning center of the S2 station as the center. The inner wall of the small diameter circular hole on the material strip is set close to each process hole.

[0009] (4) Along the direction of the material belt, at the S3 station, with the positioning center of the S3 station as the center, the material belt is stretched upward around the small diameter hole to form an annular boss, which is a chuck body.

[0010] (5) Along the direction of the material belt, at station S4, punch away the outer edge material along the outer periphery of the annular boss on the material belt;

[0011] (6) Along the direction of the material strip, at the S5 station, the edges of each clamping plate on the material strip are pre-formed with toothed patterns, so that the edges of the clamping plate form several downward protrusions.

[0012] (7) Along the direction of the material strip, at the S6 station, perform 90° forming tooth processing on each clamping plate part on the material strip so that the edge of each clamping plate part is bent downward to form a clamping part, and the groove is located next to the clamping part.

[0013] (8) Along the travel direction of the material belt, at the S7 station, each support plate part on the material belt is Z-folded to form an arc-shaped connecting part and a horizontal pressing part, wherein the connecting edge is located between the pressing part and the material belt.

[0014] (9) Along the direction of the material strip, at the S8 station, each clamping plate part of the material strip is subjected to 90° secondary forming tooth processing, so that the clamping plate part is formed into a vertically downward circumferential limiting part, and the clamping part is horizontally set on the lower side of the circumferential limiting part.

[0015] (10) Along the direction of the material belt, at the S9 station, a large diameter hole is finely punched on the material belt with the positioning center of the S9 station as the center, so that the large diameter hole is formed into an annular folding plate. The diameter of the large diameter hole is larger than the diameter of the small diameter hole, and the large diameter hole is coaxially set with the large diameter hole and the large diameter hole.

[0016] The material strip of this invention has at least fourteen stations. A progressive die matching each station is installed on the stamping machine. The material strip moves in a step-by-step manner, with each step covering an equal distance. Each time the die of the stamping machine performs a stamping operation, the progressive die sequentially performs the following steps on the material strip: punching process holes, pre-punching large round holes, idle step, upward stretching of the boss, cutting the right side outline of the fuel tank chuck, cutting the left side outline of the fuel tank chuck, pre-forming the toothed pattern, forming the toothed pattern at 90 degrees, Z-fold forming, 90-degree double forming of the toothed pattern, fine punching of large round holes, shaping of the toothed pattern, peeling off the finished chuck, and scrap cutting. Finally, the finished fuel tank chuck is peeled off at station S11, separating it from the material strip; scrap cutting is performed at station S12. A margin is left when pre-punching the small-diameter round holes, and this margin is cut off when fine-punching the large-diameter round holes, resulting in an annular folded plate. Compared with the prior art, the beneficial effects of the present invention are: it can realize the continuous, rapid and efficient production of fuel tank chucks, thereby improving the production and processing efficiency of chucks.

[0017] As a further improvement to the present invention, the following steps are also included:

[0018] (11) Along the direction of the material belt, at station S10, the tooth pattern is shaped and the protrusions of each clamping part of each chuck body on the material belt are shaped.

[0019] (12) At station S11, peel off the finished fuel tank chuck along the direction of the material belt, cut off the connecting edges between each clamping part of the chuck body and the material belt, so that the finished fuel tank chuck is separated from the material belt.

[0020] (13) Along the direction of the material strip, the waste material is cut off at station S12. The tooth is shaped to avoid the previous processing process from affecting the protrusion. The finished product chuck can be separated from the material strip. The waste material cutting step can cut off the waste material strip after the finished fuel tank chuck is removed at station S12.

[0021] As a further improvement of the present invention, a step (301) is provided between steps (3) and (4), wherein a station S201 is provided on the strip between stations S2 and S3, and station S201 is a no-step station; in step (4), a horizontal annular folding plate with a margin is formed on the inner circumference of the upper end of the annular boss, and each process hole is located on the chuck body. Station S201, as a no-step station, can provide sufficient preparation time for stretching the boss upward at station S3.

[0022] As a further improvement of the present invention, in step (5), the S4 station on the material strip includes the S401 station and the S402 station arranged along the material strip traveling direction. The outer edge material includes the right outer edge material located around the annular boss at the S401 station and the left outer edge material located around the annular boss at the S402 station. The right outer edge material includes right cut-off portion one, right cut-off portion two and right cut-off portion three, which are distributed clockwise along an arc direction centered on the positioning center of the S401 station. The left outer edge material includes left cut-off portion one, left cut-off portion two and left cut-off portion three, which are distributed counterclockwise along an arc direction centered on the positioning center of the S402 station. Part Three: The right-side cutting section two and the left-side cutting section two are integrally formed. The circumferential length of the left-side cutting section two is greater than that of the right-side cutting section two. Spacing is maintained between the right-side and left-side profile edge materials and their corresponding annular bosses. At station S402, after the strip is sequentially punched away from the corresponding right-side and left-side profile edge materials, several circumferentially spaced support pressure plates and clamping plates are formed on the outer periphery of the corresponding annular boss. The number of each support pressure plate and clamping plate is equal, and they are staggered along the circumference of the annular boss. A connecting edge is maintained between each support pressure plate and the strip. A groove is provided on the clamping plate. Simultaneous punching of the right-side and left-side profile edge materials at stations S401 and S402 results in more even force distribution, forming the initial shape of a chuck on the outer periphery of the annular boss.

[0023] As a further improvement of the present invention, in step (6), the edges of the left-side cut-out portions 1, 2, and 3 corresponding to the left-side cut-out portions on the outer periphery of the annular boss at station S5 on the material strip are pre-formed with a floral pattern. Simultaneously, the edges of the right-side cut-out portions 1, 2, and 3 corresponding to the right-side cut-out portions on the outer periphery of the annular boss at station S402 are also pre-formed with a floral pattern. Left-side cut-out portion 2 corresponds to two clamping portions, and left-side cut-out portions 1, 3, 1, 2, and 3 each correspond to one clamping portion.

[0024] As a further improvement of the present invention, the width of the strip is 210-220mm.

[0025] As a further improvement of the present invention, the S1, S2, S201, S3, S401, S402, S5, S6, S7, S8, S9, S10, S11, and S12 stations on the material strip are arranged sequentially at equal intervals, with a distance of 190-198 mm between any two adjacent stations. The positioning centers of the S2 and S201 stations coincide with the center of the small-diameter circular hole, and the positioning centers of the S3, S401, S402, S5, S6, S7, S8, S9, S10, and S11 stations coincide with the center of the annular boss. The material strip moves the same distance in each step.

[0026] The second objective of this invention is to provide a fuel tank chuck that can be produced continuously, quickly, and efficiently through the aforementioned manufacturing process, wherein the fuel tank chuck is injection molded and fixed onto a plastic fuel tank.

[0027] The object of the present invention is achieved as follows: a fuel tank chuck, the fuel tank chuck being manufactured using the above-described manufacturing process.

[0028] The fuel tank chuck of this invention is injection molded onto a plastic fuel tank. The injection-molded plastic is embedded in the process hole of the chuck body, thus fixing the fuel tank chuck to the fuel tank. The fuel pump is mounted on the fuel tank chuck, and the fuel pump is fixed by tightening the locking chuck. The locking chuck cooperates with the fuel tank chuck to lock the fuel pump. Compared with the prior art, the advantages of this invention are: it can continuously, quickly, and efficiently produce fuel tank chucks that are injection molded and fixed onto plastic fuel tanks through the aforementioned manufacturing process.

[0029] As a further improvement of the present invention, it includes an annular chuck body with its central axis vertically aligned. A ring of process holes is evenly spaced around the chuck body. An annular folding plate is horizontally positioned on the inner circumference of the lower end of the chuck body. An annular folding plate is horizontally positioned on the outer circumference of the upper end of the chuck body. Several circumferentially spaced support plates are provided on the outer circumference of the second folding plate. Each support plate includes a horizontal pressing part and an arc-shaped connecting part. The upper surface of the pressing part is lower than the upper surface of the chuck body. The pressing part is integrated with the second folding plate of the chuck body via the connecting part. The chuck body is configured such that the outer periphery of the folding plate two is provided with several L-shaped clamping plates spaced apart circumferentially. Each clamping plate and each supporting pressure plate are arranged alternately along the circumferential direction. Each clamping plate includes a vertical circumferential limiting part, and a horizontal clamping part is provided on the upper side of the circumferential limiting part. The circumferential limiting part is integrally connected to the folding plate two of the chuck body through a connecting part two. The circumferential length of the circumferential limiting part is greater than the circumferential length of the clamping part. A groove is provided on the circumferential limiting part. Several downwardly protruding protrusions are spaced apart on the clamping part. A groove is formed between any two adjacent protrusions. The groove is located close to the clamping part. The locking chuck cooperates with the clamping plates of the fuel tank chuck, and the locking chuck locks and fixes the fuel pump on the fuel tank chuck.

[0030] As a further improvement of the present invention, seven support plates and seven clamping plates are provided at intervals along the outer periphery of the chuck body, wherein the circumferential length of one support plate is greater than the circumferential length of the other support plates, and the support plate is provided with a number of notches distributed at intervals along the circumferential direction. Attached Figure Description

[0031] Figure 1 This is a three-dimensional structural diagram of the finished fuel tank chuck of the present invention.

[0032] Figure 2 This is a top view of the finished fuel tank chuck.

[0033] Figure 3 This is the front view of the finished fuel tank chuck.

[0034] Figure 4 This is a top view of the conveyor belt.

[0035] Figure 5 for Figure 4 A magnified view of a portion of the image.

[0036] Figure 6 for Figure 4 A magnified view of a portion of the image.

[0037] Figure 7 for Figure 6 A magnified view of a portion of the image.

[0038] Figure 8 for Figure 4 A magnified view of a portion of the image.

[0039] Figure 9 This is the front view of the conveyor belt.

[0040] Figure 10 for Figure 9 A magnified view of a portion of the image.

[0041] Figure 11 for Figure 9 A magnified view of a portion of the image.

[0042] The components include: 1. Chuck body; 2. Process hole; 3. Folding plate one; 4. Folding plate two; 5. Support plate; 5a. Clamping part; 5b. Connecting part one; 6. Chuck plate; 6a. Circumferential limiting part; 6b. Clamping part; 6c. Connecting part two; 7. Groove; 8. Protrusion; 9. Slot; 10. Notch; 11. Material strip; 12. Positioning center; 13. Small diameter hole; 14. Annular boss; 15. Chuck plate part; 16. Support plate part; 17. Connecting edge; 18. Folding plate one allowance. Section 19 Large diameter round hole, 20 Right side outer edge material, 20a Right side cutting section one, 20b Right side cutting section two, 20c Right side cutting section three, 21 Left side outer edge material, 21a Left side cutting section one, 21b Left side cutting section two, 21c Left side cutting section three, S1, S2, S201, S3, S401, S402, S5, S6, S7, S8, S9, S10, S11, and S12 are all workstations. Detailed Implementation

[0043] like Figure 1-11 The image shows a manufacturing process for a fuel tank chuck, which includes the following steps:

[0044] (1) Unwind and flatten the wound strip 11, and pull the strip 11 into the stamping machine tool equipped with a progressive die. The strip 11 moves in one direction in a stepping manner. The strip 11 has multiple working stations corresponding to the stamping machine tool. Each working station of the stamping machine tool is equipped with a positioning center 12 for determining the circumferential and radial directions of the fuel tank chuck to be processed.

[0045] (2) Along the travel direction of the material strip 11, at the S1 station, the stamping machine works to punch out a circle of process holes 2 that are evenly distributed in the circumferential direction around the positioning center 12 of the S1 station of the material strip 11.

[0046] (3) Along the travel direction of the material belt 11, at the S2 station, a small diameter circular hole 13 is pre-punched on the material belt 11 with the positioning center 12 of the S2 station as the center. The inner wall of the small diameter circular hole 13 on the material belt 11 is set close to each process hole 2.

[0047] (301) The material strip 11 is also provided with station S201 between station S2 and station S3. Station S201 is a no-step station. As a no-step station, station S201 can leave enough time for station S3 to stretch the upward stretching boss.

[0048] (4) Along the travel direction of the material strip 11, at the S3 station, with the positioning center 12 of the S3 station as the center, the material strip 11 is located around the small diameter hole 13 and the annular boss 14 is stretched upward. The annular boss 14 is the chuck body 1. A horizontal annular folding plate with a margin 18 is formed on the inner circumference of the upper end of the annular boss 14. Each process hole 2 is located on the chuck body 1.

[0049] (5) Along the traveling direction of the material strip 11, at the S4 station, the outer edge material is punched off along the outer periphery of the annular boss 14 on the material strip 11; the S4 station on the material strip 11 includes the S401 station and the S402 station arranged along the traveling direction of the material strip 11, and the outer edge material includes the right outer edge material 20 located on the outer periphery of the annular boss 14 at the S401 station on the material strip 11 and the left outer edge material 21 located on the outer periphery of the annular boss 14 at the S402 station. 20 includes right-side cutting portions 20a, 20b, and 20c, which are distributed clockwise along an arc centered on the positioning center 12 of station S401. The left-side outer edge material 21 includes left-side cutting portions 21a, 21b, and 21c, and right-side cutting portions 20b and 21b, which are distributed counterclockwise along an arc centered on the positioning center 12 of station S402. The two parts are connected as one unit. The circumferential length of the left cutting part 21b is greater than that of the right cutting part 20b. There is a gap between the right outer edge material 20, the left outer edge material 21 and the corresponding annular boss 14. At the S402 station, after the strip 11 successively cuts off the corresponding right outer edge material 20 and the left outer edge material 21, a number of circumferentially spaced support pressure plate parts 16 and clamping plate parts 15 to be processed are formed on the outer periphery of the corresponding annular boss 14. The number of each support plate portion 16 and clamping plate portion 15 to be processed is equal. Each support plate portion 16 and clamping plate portion 15 is arranged alternately along the circumference of the annular boss 14. Each support plate portion 16 to be processed has a connecting edge 17 between it and the material strip 11. The clamping plate portion 15 has a groove 7. At the S401 and S402 stations, the right side outer edge material 20 and the left side outer edge material 21 are punched at the same time, and the force is more even, so that the outer periphery of the annular boss 14 forms the prototype of the chuck.

[0050] (6) Along the travel direction of the material belt 11, at the S5 station, the edges of each clamping portion 15 on the material belt 11 are pre-formed with a toothed pattern, so that the edges of the clamping portion 15 form several downwardly protruding protrusions 8; the edges of each clamping portion 15 corresponding to the left side cut-off portion 1 21a, left side cut-off portion 21b, and left side cut-off portion 3 21c on the outer periphery of the annular boss 14 at the S5 station on the material belt 11 are pre-formed with a toothed pattern, and the edges of each clamping portion 15 corresponding to the right side cut-off portion 1 20a, right side cut-off portion 20b, and right side cut-off portion 3 20c on the outer periphery of the annular boss 14 at the S402 station are also pre-formed with a toothed pattern. The left side cut-off portion 21b corresponds to two clamping portions 15, and the left side cut-off portion 1 21a, left side cut-off portion 3 21c, right side cut-off portion 1 20a, right side cut-off portion 20b, and right side cut-off portion 3 20c each correspond to one clamping portion 15;

[0051] (7) Along the travel direction of the material strip 11, at the S6 station, each clamping plate portion 15 on the material strip 11 is processed with 90° forming tooth pattern, so that the edge of each clamping plate portion 15 is bent downward to form a clamping portion 6b, and the groove 7 is located next to the clamping portion 6b.

[0052] (8) Along the travel direction of the material belt 11, at the S7 station, each support pressure plate part 16 on the material belt 11 is Z-folded and formed so that the support pressure plate part 16 is formed into an arc-shaped connecting part 5b and a horizontal pressing part 5a, and the connecting edge 17 is located between the pressing part 5a and the material belt 11.

[0053] (9) Along the travel direction of the material belt 11, at the S8 station, each clamping plate part 15 of the material belt 11 is subjected to a 90° secondary forming tooth processing, so that the clamping plate part 15 is formed into a vertically downward circumferential limiting part 6a, and the clamping part 6b is horizontally arranged on the lower side of the circumferential limiting part 6a.

[0054] (10) Along the travel direction of the material belt 11, at the S9 station, the large diameter hole 19 of the annular folding plate 18 is finely punched on the material belt 11 with the positioning center 12 of the S9 station as the center, so that the annular folding plate 18 is formed into an annular folding plate 3. The diameter of the large diameter hole 19 is larger than the diameter of the small diameter hole 13. The large diameter hole 19 and the annular folding plate 18 are coaxially arranged.

[0055] (11) Along the travel direction of the material belt 11, the tooth pattern is shaped at the S10 station, and the protrusions 8 of each clamping part 6b of each chuck body 1 on the material belt 11 are shaped.

[0056] (12) Along the travel direction of the material belt 11, the finished fuel tank chuck is stripped at the S11 station, and the connecting edge 17 between each clamping part 5a of the chuck body 1 and the material belt 11 is cut off, so that the finished fuel tank chuck is separated from the material belt 11.

[0057] (13) Along the travel direction of the material strip 11, the waste material is cut off at the S12 station. The tooth is shaped to avoid the previous processing process from affecting the protrusion 8. The peeled finished chuck can be separated from the material strip 11. The waste material cutting step can cut off the waste material of the material strip 11 after the finished fuel tank chuck is removed at the S12 station.

[0058] The width of strip 11 is 210-220mm.

[0059] The S1, S2, S201, S3, S401, S402, S5, S6, S7, S8, S9, S10, S11, and S12 stations on the material belt 11 are arranged equidistantly, with a distance of 190-198 mm between any two adjacent stations. The positioning center 12 of the S2 and S201 stations coincides with the center of the small-diameter circular hole 13, and the positioning center 12 of the S3, S401, S402, S5, S6, S7, S8, S9, S10, and S11 stations coincides with the center of the annular boss 14. The material belt 11 moves the same distance in each step.

[0060] The strip 11 of this invention has at least fourteen stations. A progressive die matching each station of the strip 11 is installed on the stamping machine. The strip 11 moves in a step-by-step manner, with each step covering an equal distance. Each time the die of the stamping machine punches, the progressive die sequentially performs the following processing steps on the strip 11: punching process holes 2, pre-punching large round holes, idle step, upward stretching of the boss, cutting the right side outline of the fuel tank chuck, cutting the left side outline of the fuel tank chuck, pre-forming the tooth pattern, forming the tooth pattern at 90 degrees, forming the Z-fold surface, forming the tooth pattern at 90 degrees twice, fine punching large round holes, shaping the tooth pattern, peeling off the finished chuck, and cutting off the scrap. Finally, the finished fuel tank chuck is peeled off at station S11, separating it from the strip 11. Scrap is cut off at station S12. When pre-punching the small diameter round holes 13, a margin is left. When fine punching the large diameter round holes 19, the margin is cut off to obtain the annular folded plate 3. This invention enables continuous, rapid, and efficient production of fuel tank chucks, thereby improving chuck production and processing efficiency.

[0061] A fuel tank chuck, the fuel tank chuck being manufactured using the above-described manufacturing process.

[0062] The fuel tank chuck includes an annular chuck body 1, with its central axis vertically positioned. A ring of process holes 2 are evenly spaced around the chuck body 1. An annular folding plate 3 is horizontally positioned on the lower inner circumference of the chuck body 1. An annular folding plate 4 is horizontally positioned on the upper outer circumference of the chuck body 1. Several circumferentially spaced support plates 5 are located around the outer circumference of the folding plate 4. Each support plate 5 includes a horizontal pressing part 5a and an arc-shaped connecting part 5b. The upper surface of the pressing part 5a is lower than the upper surface of the chuck body 1. The pressing part 5a is integrally connected to the folding plate 4 of the chuck body 1 via the connecting part 5b. The outer periphery of the folding plate 4 of chuck 1 is also provided with several L-shaped clamping plates 6 distributed circumferentially. Each clamping plate 6 and each supporting pressure plate 5 are arranged alternately along the circumferential direction. The clamping plate 6 includes a vertical circumferential limiting part 6a, and a horizontal clamping part 6b is provided on the upper side of the circumferential limiting part 6a. The circumferential limiting part 6a is connected to the folding plate 4 of chuck body 1 by a connecting part 6c. The circumferential length of the circumferential limiting part 6a is greater than the circumferential length of the clamping part 6b. A groove 7 is provided on the circumferential limiting part 6a. Several downwardly protruding protrusions 8 are provided at intervals on the clamping part 6b. A groove 9 is formed between any two adjacent protrusions 8. The groove 7 is located close to the clamping part 6b. The locking chuck cooperates with each clamping plate 6 of the fuel tank chuck, and the locking chuck locks and fixes the fuel pump on the fuel tank chuck. There are seven support plates 5 and seven clamping plates 6 spaced apart along the outer periphery of the chuck body 1. The circumferential length of one of the support plates 5 is greater than that of the other support plates 5, and the support plate 5 is provided with several notches 10 spaced apart along the circumferential direction.

[0063] The fuel tank chuck of this invention is injection molded onto a plastic fuel tank. The injection-molded plastic is embedded in the process hole 2 of the chuck body 1, thus fixing the fuel tank chuck to the fuel tank. The fuel pump is mounted on the fuel tank chuck, and the fuel pump is fixed by tightening the locking chuck. The locking chuck cooperates with the fuel tank chuck to lock the fuel pump. The fuel tank chuck of this invention can be continuously, quickly, and efficiently produced through the aforementioned manufacturing process, and the fuel tank chuck is injection molded and fixed onto the plastic fuel tank.

[0064] This invention is not limited to the above embodiments. Based on the technical solutions disclosed in this invention, those skilled in the art can make some substitutions and modifications to some of the technical features without creative effort, and all such substitutions and modifications are within the protection scope of this invention.

Claims

1. A manufacturing process for a fuel tank chuck, characterized in that, Includes the following steps: (1) Unwind and level the wound strip, and pull the strip into the stamping machine. The strip moves in one direction in a stepping manner. The strip has multiple working stations corresponding to the stamping machine. Each working station of the stamping machine is equipped with a positioning center to determine the circumferential and radial directions of the fuel tank chuck to be processed. (2) Along the direction of the material strip, at the S1 station, the stamping machine works to punch out a circle of process holes that are evenly distributed in the circumferential direction around the positioning center of the S1 station of the material strip. (3) Along the direction of the material strip, at the S2 station, a small diameter circular hole is pre-punched on the material strip with the positioning center of the S2 station as the center. The inner wall of the small diameter circular hole on the material strip is set close to each process hole. (4) Along the direction of the material strip, at the S3 station, with the positioning center of the S3 station as the center, the material strip is stretched upward around the small diameter hole to form an annular boss. The annular boss is a chuck body. A horizontal annular folding plate with a margin is formed on the inner circumference of the upper end of the annular boss. (5) Along the direction of the material belt, at station S4, punch away the outer edge material along the outer periphery of the annular boss on the material belt; (6) Along the direction of the material strip, at the S5 station, the edges of each clamping plate on the material strip are pre-formed with toothed patterns, so that the edges of the clamping plate form several downward protrusions. (7) Along the direction of the material strip, at the S6 station, perform 90° forming tooth processing on each clamping plate part on the material strip so that the edge of each clamping plate part is bent downward to form a clamping part, and the groove is located next to the clamping part. (8) Along the direction of the material belt, at the S7 station, each support plate part on the material belt is Z-folded to form an arc-shaped connecting part and a horizontal pressing part, and a connecting edge is formed between each pressing part and the material belt. (9) Along the direction of the material strip, at the S8 station, each clamping plate part of the material strip is subjected to 90° secondary forming tooth processing, so that the clamping plate part is formed into a vertically downward circumferential limiting part, and the clamping part is horizontally set on the lower side of the circumferential limiting part. (10) Along the direction of the material belt, at the S9 station, a large diameter hole is finely punched on the material belt with the positioning center of the S9 station as the center, so that the large diameter hole is formed into an annular folding plate. The diameter of the large diameter hole is larger than the diameter of the small diameter hole, and the large diameter hole is coaxially set with the large diameter hole and the large diameter hole.

2. The manufacturing process for a fuel tank chuck according to claim 1, characterized in that, It also includes the following steps: (11) Along the direction of the material belt, at station S10, the tooth pattern is shaped and the protrusions of each clamping part of each chuck body on the material belt are shaped. (12) At station S11, peel off the finished fuel tank chuck along the direction of the material belt, cut off the connecting edges between each clamping part of the chuck body and the material belt, so that the finished fuel tank chuck is separated from the material belt. (13) Cut the waste material at station S12 along the direction of the material belt travel.

3. A fuel tank chuck manufacturing process according to claim 1 or 2, characterized in that, Between steps (3) and (4), there is also step (301), where station S201 is provided between station S2 and station S3 on the material strip, and station S201 is a no-step station; each process hole is located on the chuck body.

4. A fuel tank chuck manufacturing process according to claim 1 or 2, characterized in that, In step (5), station S4 on the material belt includes stations S401 and S402 arranged along the material belt's travel direction. The outer edge material includes the right outer edge material located around the annular boss at station S401 and the left outer edge material located around the annular boss at station S402. The right outer edge material includes right-side cut-off portion one, right-side cut-off portion two, and right-side cut-off portion three, distributed clockwise along an arc centered on the positioning center of station S401. The left outer edge material includes left-side cut-off portion one, left-side cut-off portion two, and left-side cut-off portion three, distributed counterclockwise along an arc centered on the positioning center of station S402. The second side cutting section and the second left side cutting section are integrated into one unit. The circumferential length of the second left side cutting section is greater than that of the second right side cutting section. There is a gap between the right side outer edge material, the left side outer edge material and the corresponding annular boss. At the S402 station, after the strip passes through the corresponding right side outer edge material and the left side outer edge material in sequence, a number of support pressure plate parts and clamping plate parts to be processed are formed on the outer periphery of the corresponding annular boss. The number of each support pressure plate part and clamping plate part to be processed is equal. Each support pressure plate part and clamping plate part is arranged alternately along the circumference of the annular boss. There is a connecting edge between each support pressure plate part to be processed and the strip. The clamping plate part is provided with a groove.

5. The manufacturing process for a fuel tank chuck according to claim 4, characterized in that, In step (6), the edges of the left-side cut-out portion one, left-side cut-out portion two and left-side cut-out portion three corresponding to the outer periphery of the annular boss at station S5 on the material belt are pre-formed with a floral pattern. At the same time, the edges of the right-side cut-out portion one, right-side cut-out portion two and right-side cut-out portion three corresponding to the outer periphery of the annular boss at station S402 are also pre-formed with a floral pattern.

6. The manufacturing process for a fuel tank chuck according to claim 5, characterized in that, The width of the material strip is 210-220mm.

7. The manufacturing process for a fuel tank chuck according to claim 6, characterized in that, The S1, S2, S201, S3, S401, S402, S5, S6, S7, S8, S9, S10, S11, and S12 stations on the material belt are arranged equidistantly in sequence, with a distance of 190-198 mm between any two adjacent stations. The positioning center of the S2 and S201 stations coincides with the center of the small-diameter circular hole, and the positioning center of the S3, S401, S402, S5, S6, S7, S8, S9, S10, and S11 stations coincides with the center of the annular boss.

8. A fuel tank chuck, characterized in that, The fuel tank chuck is manufactured using the manufacturing process described in any one of claims 1-7.

9. A fuel tank chuck according to claim 8, characterized in that, The chuck includes an annular chuck body with a vertically aligned central axis. A ring of process holes is evenly spaced circumferentially around the chuck body. An annular folding plate (first) is horizontally positioned on the lower inner circumference of the chuck body. An annular folding plate (second) is horizontally positioned on the upper outer circumference of the chuck body. Several circumferentially spaced support plates are located around the outer circumference of the second folding plate. Each support plate includes a horizontal pressing part and an arc-shaped connecting part (first). The upper surface of the pressing part is lower than the upper surface of the chuck body. The pressing part is integrally connected to the second folding plate of the chuck body via the connecting part (first). The outer periphery of the folding plate of the disc body is also provided with several L-shaped clamping plates distributed circumferentially. Each clamping plate and each supporting pressure plate are arranged alternately along the circumferential direction. Each clamping plate includes a vertical circumferential limiting part, and a horizontal clamping part is provided on the upper side of the circumferential limiting part. The circumferential limiting part is connected to the folding plate of the disc body through the connecting part two. The circumferential length of the circumferential limiting part is greater than the circumferential length of the clamping part. A groove is provided on the circumferential limiting part. Several downward protruding protrusions are provided at intervals on the clamping part. A groove is formed between any two adjacent protrusions. The groove is located close to the clamping part.

10. A fuel tank chuck according to claim 9, characterized in that, The support plates and clamping plates are all arranged in seven intervals along the outer periphery of the chuck body. The circumferential length of one of the support plates is greater than that of the other support plates, and the support plate is provided with several notches distributed at intervals along the circumferential direction.

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