Fuel tank chuck and manufacturing process thereof

Abstract

The invention 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, the central axis of the chuck body is vertically arranged, a circle of process holes distributed at equal intervals in the circumferential direction are formed in the chuck body, and a plurality of supporting pressing plates distributed at intervals in the circumferential direction are arranged on the periphery of the chuck body; a plurality of L-shaped clamping plates distributed at intervals in the circumferential direction are further arranged on the periphery of the chuck body. According to the fuel tank chuck manufacturing process, the fuel tank chuck can be continuously, rapidly and efficiently produced, and the chuck production and machining efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the field of fuel tank chucks, and in particular relates to a fuel tank chuck and a manufacturing process thereof. Background Art

[0002] In the prior art, there is a lightweight fuel tank fuel pump fixing assembly, whose patent application number is: 201811352387.1; application date: 2018.11.14; its structure includes a fixing ring and a locking ring that match each other, and a plurality of clamping plates that cooperate with the locking ring are formed upward on the surface of the fixing ring, and the clamping plate includes a supporting portion formed on the upper surface of the fixing ring, and the top of the supporting portion is folded toward the center of the fixing ring to form an upper crimping portion, and the locking ring is processed with arc-shaped notches along the circumferential direction, and the circumferential portion between the arc-shaped notches serves as a lower crimping portion that cooperates with the clamping plate for fixing.

[0003] Most automobile fuel tanks are made of plastic, and the fuel pump is installed on the fuel tank, and the fuel pump is fixed to the fuel tank by a fixing ring and a locking ring. When the fuel tank is manufactured by injection molding, the fixing ring is generally directly injection molded on the fuel tank to improve the strength; the fuel pump is first installed on the fixing ring of the fuel tank, and then the fuel pump and the fixing ring are locked and fixed with a locking ring. The fixing ring is the fuel tank chuck, and there is currently a lack of manufacturing processes that can continuously and efficiently produce fuel tank chucks. Summary of the invention

[0004] One of the purposes of the present invention is to provide a fuel tank chuck manufacturing process, which can realize continuous, rapid and efficient production of fuel tank chucks and improve the chuck production and processing efficiency.

[0005] The object of the present invention is achieved in this way: a fuel tank chuck manufacturing process comprises the following steps: (1) Unwinding and flattening the wound material strip, and pulling the material strip into a stamping machine equipped with a progressive die, the material strip moves in one direction in a step-by-step manner, and the material strip has a plurality of work stations corresponding to the stamping machine. Each work station of the stamping machine corresponding to the material strip is provided with a positioning circle center for determining the circumferential and radial directions of the fuel tank chuck to be processed; (2) Along the traveling direction of the material strip, at the S1 station, the stamping machine works to punch out a circle of process holes evenly spaced along the circumferential direction around the positioning center of the S1 station of the material strip; (3) Along the traveling direction of the material strip, at the S2 station, a small-diameter circular hole is pre-punched on the material strip with the positioning circle center of the S2 station as the center, and the inner wall of the small-diameter circular hole on the material strip is arranged correspondingly close to each process hole; (4) Along the moving direction of the material strip, at the S3 station, with the positioning circle center of the S3 station as the center, the material strip is located at the periphery of the small-diameter circular hole and the annular boss is stretched upward, and the annular boss is the chuck body; (5) Along the traveling direction of the material strip, at the S4 station, the outer edge material is punched off along the outer periphery of the annular boss on the material strip; (6) Along the traveling direction of the material strip, at the S5 station, the edges of each card plate portion on the material strip are pre-formed with tooth processing, so that the edges of the card plate portions are formed with a plurality of protrusions protruding downward; (7) Along the traveling direction of the material strip, at the S6 station, each clamping plate portion on the material strip is subjected to 90° forming tooth processing, so that the edge of each clamping plate portion is bent downward to form a clamping portion, and the groove is located next to the clamping portion; (8) Along the traveling direction of the material strip, at the S7 station, each support plate portion on the material strip is subjected to Z-folding surface forming, so that the support plate portion is formed into an arc-shaped connecting portion and a horizontal clamping portion, and the connecting edge is located between the clamping portion and the material strip; (9) Along the traveling direction of the material strip, at the S8 station, each clamping plate portion of the material strip is subjected to a 90° secondary forming tooth processing, so that the clamping plate portion is formed into a circumferential limiting portion vertically downward, and the clamping portion is horizontally arranged at the lower side of the circumferential limiting portion; (10) Along the traveling direction of the material strip, at the S9 station, a large-diameter circular hole is finely punched on the excess portion of the annular folding plate 1 with the positioning circle center of the S9 station as the center on the material strip, so that the excess portion of the annular folding plate 1 is formed into annular folding plate 1, the diameter of the large-diameter circular hole is larger than the diameter of the small-diameter circular hole, and the large-diameter circular hole is coaxially arranged with the excess portion of the annular folding plate 1.

[0006] The material strip of the present invention is provided with at least fourteen workstations, and the stamping machine is equipped with a progressive die matching each workstation of the material strip. The material strip moves in a step-by-step manner, and the distance moved by each step of the material strip is equal. Each time the die of the stamping machine is punched, the progressive die sequentially performs the following processing steps on the material strip: punching process holes, pre-punching large circular holes, empty steps, stretching bosses upward, cutting the right side shape of the fuel tank chuck, cutting the left side shape of the fuel tank chuck, pre-forming flower teeth, 90-degree forming flower teeth, Z-folding surface forming, 90-degree second forming flower teeth, fine-punching large circular holes, shaping flower teeth, stripping the finished chuck, and cutting off the waste. Finally, the finished fuel tank chuck is stripped off at the S11 workstation, and the fuel tank chuck is separated from the material strip; and the waste is cut off at the S12 workstation. When pre-punching the small-diameter circular hole first, a margin is left, and when fine-punching the large-diameter circular hole later, the margin is cut off to obtain the annular folding plate 1. Compared with the prior art, the beneficial effects of the present invention are: it can realize continuous, rapid and efficient production of fuel tank chucks, and improve the production and processing efficiency of the chucks.

[0007] As a further improvement of the present invention, the following steps are also included: (11) Along the traveling direction of the material strip, the flower teeth are shaped at the S10 station, and the protrusions of the clamping parts of the chuck bodies on the material strip are shaped; (12) Along the traveling direction of the material strip, the finished fuel tank chuck is peeled off at the S11 station, and the connecting edges between the pressing parts of the chuck body and the material strip are cut off, so that the finished fuel tank chuck is separated from the material strip; (13) Along the moving direction of the material strip, the waste material is cut off at the S12 station. The flower teeth are shaped to avoid the impact of the previous processing technology on the raised part. The finished chuck can be separated from the material strip by peeling. The waste material cutting step can cut off the waste material strip after the finished fuel tank chuck is removed at the S12 station.

[0008] As a further improvement of the present invention, there is a step (301) between the steps (3) and (4), and there is a station S201 between the stations S2 and S3 on the material strip, and the station S201 is an empty station; in the step (4), a horizontal annular folding plate-a margin portion is formed on the inner circumference of the upper end of the annular boss, and each process hole is located on the chuck body. The station S201 is an empty station, which can leave enough stretching preparation time for the station S3 to stretch the boss upward. As a further improvement of the present invention, the S4 station on the material belt in the step (5) includes the S401 station and the S402 station arranged along the direction of travel of the material belt, the outer shape edge material includes the right outer shape edge material located on the periphery of the annular boss on the S401 station on the material belt and the left outer shape edge material located on the periphery of the annular boss on the S402 station, the right outer shape edge material includes the right cut-off portion 1, the right cut-off portion 2 and the right cut-off portion 3 which are distributed in a clockwise manner along the arc direction with the positioning circle center of the S401 station as the center, and the left outer shape edge material includes the left cut-off portion 1, the left cut-off portion 2 and the left cut-off portion 3 which are distributed in a counterclockwise manner along the arc direction with the positioning circle center of the S402 station as the center. Part three, the right cut-out part 2 and the left cut-out part 2 are connected as one body, the circumferential length of the left cut-out part 2 is greater than the circumferential length of the right cut-out part 2, and there is a gap between the right outer edge material, the left outer edge material and the corresponding annular boss; at the S402 station, after the corresponding right outer edge material and the left outer edge material are punched out in sequence, the outer periphery of the corresponding annular boss forms a number of support plate parts and card parts to be processed that are distributed in the circumferential direction, and the number of each support plate part and card part to be processed is equal, and each support plate part and card part is staggered in sequence along the circumference of the annular boss, and a connecting edge is left between each support plate part to be processed and the material strip, and a groove is provided on the card part. At the S401 station and the S402 station, the right outer edge material and the left outer edge material are punched out at the same time, and the force is more uniform, so that the outer periphery of the annular boss forms the prototype of the chuck.

[0009] As a further improvement of the present invention, in the step (6), the edges of the respective cardboard parts corresponding to the left cut-out part 1, the left cut-out part 2 and the left cut-out part 3 of the outer periphery of the annular boss of the S5 station on the material strip are pre-formed with flower teeth, and at the same time, the edges of the respective cardboard parts corresponding to the right cut-out part 1, the right cut-out part 2 and the right cut-out part 3 of the outer periphery of the annular boss of the S402 station are pre-formed with flower teeth. The left cut-out part 2 corresponds to two cardboard parts, and the left cut-out part 1, the left cut-out part 3, the right cut-out part 1, the right cut-out part 2 and the right cut-out part 3 each correspond to one cardboard part.

[0010] As a further improvement of the present invention, the width of the material strip is 210-220 mm.

[0011] As a further improvement of the present invention, the stations S1, S2, S201, S3, S401, S402, S5, S6, S7, S8, S9, S10, S11, and S12 on the material strip are arranged in sequence and equidistantly, the distance between any two adjacent stations is 190-198 mm, the positioning circle center of the stations S2 and S201 coincides with the center of the small diameter circular hole, and the positioning circle center of the stations S3, S401, S402, S5, S6, S7, S8, S9, S10, and S11 coincides with the center of the annular boss. The distance of each step of the material strip is equal.

[0012] A second object of the present invention is to provide a fuel tank chuck that can be continuously, quickly and efficiently produced through the manufacturing process, and the fuel tank chuck is injection-molded and fixed on the plastic fuel tank.

[0013] The object of the present invention is achieved in this way: a fuel tank chuck is manufactured by adopting the above manufacturing process.

[0014] The fuel tank chuck of the present invention is injection molded on the plastic fuel tank, and the injected plastic is embedded in the process hole of the chuck body, so that the fuel tank chuck is fixed to the fuel tank, and the fuel pump is installed on the fuel tank chuck, and the fuel pump is fixed by tightening the locking chuck, and the locking chuck cooperates with the fuel tank chuck to lock the fuel pump. Compared with the prior art, the beneficial effect of the present invention is that the fuel tank chuck can be continuously, quickly and efficiently produced through the manufacturing process, and the fuel tank chuck is injection molded and fixed on the plastic fuel tank.

[0015] As a further improvement of the present invention, it includes an annular chuck body, the central axis of the chuck body is vertically arranged, a circle of process holes distributed at equal intervals along the circumferential direction is opened on the chuck body, an annular folding plate 1 is provided on the inner periphery of the lower end of the chuck body, and the folding plate 1 is horizontally arranged, and an annular folding plate 2 is provided on the outer periphery of the upper end of the chuck body, and the folding plate 2 is horizontally arranged, and a plurality of support pressure plates distributed at intervals along the circumferential direction are provided on the outer periphery of the folding plate 2, and the support pressure plate includes a horizontal clamping portion and an arc-shaped connecting portion 1, the upper surface height of the clamping portion is lower than the upper surface height of the chuck body, and the clamping portion is connected to the folding plate 2 of the chuck body through the connecting portion 1. The outer periphery of the second folding plate of the chuck body is also provided with a plurality of L-shaped chucks spaced along the circumferential direction, and each chuck and each supporting plate are staggered and arranged in sequence along the circumferential direction, and the chuck includes a vertical circumferential limiting portion, and a horizontal clamping portion is arranged on the upper side of the circumferential limiting portion, and the circumferential limiting portion is connected to the second folding plate of the chuck body through the second connecting portion as a whole, and the length of the circumferential limiting portion along the circumferential direction is greater than the length of the clamping portion along the circumferential direction, and a groove is provided on the circumferential limiting portion, and a plurality of protruding portions protruding downward are spaced on the clamping portion, and a clamping groove is formed between any two adjacent protruding portions, and the groove is arranged near the clamping portion. The locking chuck cooperates with each chuck of the fuel tank chuck, and the locking chuck locks and fixes the fuel pump on the fuel tank chuck.

[0016] As a further improvement of the present invention, seven supporting pressure plates and chuck plates are arranged at intervals along the outer circumference of the chuck body, wherein the circumferential length of one supporting pressure plate is greater than the circumferential length of the other supporting pressure plates, and the supporting pressure plate is provided with a plurality of notches distributed at intervals along the circumference. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural diagram of the finished fuel tank chuck of the present invention.

[0018] Figure 2 A top view of the finished fuel tank chuck.

[0019] Figure 3 This is the front view of the finished fuel tank chuck.

[0020] Figure 4 A top view of the strip.

[0021] Figure 5 for Figure 4 A partial enlarged view of .

[0022] Figure 6 for Figure 4 A partial enlarged view of .

[0023] Figure 7 for Figure 6 A partial enlarged view of .

[0024] Figure 8 for Figure 4 A partial enlarged view of .

[0025] Fig. 9 This is the front view of the material strip.

[0026] Fig.10 for Fig. 9 A partial enlarged view of .

[0027] Fig.11 for Fig. 9 A partial enlarged view of .

[0028] Among them, 1 chuck body, 2 process hole, 3 folding plate 1, 4 folding plate 2, 5 support plate, 5a clamping part, 5b connecting part 1, 6 clamping plate, 6a circumferential limit part, 6b clamping part, 6c connecting part 2, 7 groove, 8 raised part, 9 clamping groove, 10 notch, 11 material strip, 12 positioning center, 13 small diameter circular hole, 14 annular boss, 15 clamping plate part, 16 support plate part, 17 connecting edge, 18 folding plate 1 margin Part, 19 large diameter circular hole, 20 right side outline edge material, 20a right side cut-out part one, 20b right side cut-out part two, 20c right side cut-out part three, 21 left side outline edge material, 21a left side cut-out part one, 21b left side cut-out part two, 21c left side cut-out part three, S1, S2, S201, S3, S401, S402, S5, S6, S7, S8, S9, S10, S11, and S12 are all work stations. DETAILED DESCRIPTION

[0029] like Figure 1-11 As shown, a fuel tank chuck manufacturing process includes the following steps: (1) Unwinding and flattening the wound material strip 11, and pulling the material strip 11 into a stamping machine equipped with a progressive die, the material strip 11 moves in one direction in a step-by-step manner, and the material strip 11 has a plurality of working stations corresponding to the stamping machine, and each working station of the stamping machine corresponding to the material strip 11 is provided with a positioning circle center 12 for determining the circumferential and radial directions of the fuel tank chuck to be processed; (2) Along the traveling direction of the material strip 11, at the S1 station, the punching machine tool operates to punch out a circle of process holes 2 that are evenly spaced along the circumferential direction around the positioning circle center 12 of the S1 station of the material strip 11; (3) Along the traveling direction of the material strip 11, at the S2 station, a small-diameter circular hole 13 is pre-punched on the material strip 11 with the positioning circle center 12 of the S2 station as the center, and the inner wall of the small-diameter circular hole 13 on the material strip 11 is arranged correspondingly close to each process hole 2; (301) A station S201 is provided between the station S2 and the station S3 on the material strip 11, and the station S201 is an idle station; the station S201 is an idle station, which can leave enough stretching preparation time for the upward stretching boss of the station S3; (4) Along the moving direction of the material strip 11, at the S3 station, the material strip 11 is positioned at the periphery of the small-diameter circular hole 13 and the annular boss 14 is stretched upward with the positioning circle center 12 of the S3 station as the center. The annular boss 14 is the chuck body 1; a horizontal annular folding plate-residue portion 18 is formed on the inner periphery of the upper end of the annular boss 14, and each process hole 2 is located on the chuck body 1; (5) Along the traveling direction of the material strip 11, at the S4 station, the outer shape 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 shape edge material includes the right outer shape 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 shape edge material 21 located on the outer periphery of the annular boss 14 at the S402 station, and the right outer shape edge material The left outer edge material 20 includes a right cut-out portion 1 20a, a right cut-out portion 20b and a right cut-out portion 3 20c which are arranged in a clockwise manner along the arc direction with the positioning circle center 12 of the first S401 station as the center, and the left outer edge material 21 includes a left cut-out portion 1 21a, a left cut-out portion 21b and a left cut-out portion 3 21c which are arranged in a counterclockwise manner along the arc direction with the positioning circle center 12 of the first S402 station as the center, and the right cut-out portion 20b and the left cut-out portion 21b are arranged in a counterclockwise manner. The left cut-off portion 21b is arranged as a whole, the circumferential length of the left cut-off portion 21b is greater than the circumferential length of the right cut-off portion 20b, and 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 corresponding right outer edge material 20 and the left outer edge material 21 are punched out in sequence, the outer periphery of the corresponding annular boss 14 forms a plurality of support plate portions 16 and clamping plate portions 15 to be processed and distributed along the circumferential direction, The number of the supporting plate parts 16 and the clamping plate parts 15 to be processed is equal, and the supporting plate parts 16 and the clamping plate parts 15 are arranged alternately in sequence along the circumference of the annular boss 14. A connecting edge 17 is left between each supporting plate part 16 to be processed and the material strip 11, and a groove 7 is opened on the clamping plate part 15; the right side edge material 20 and the left side edge material 21 are punched at the S401 station and the S402 station at the same time, and the force is more uniform, so that the outer periphery of the annular boss 14 forms the prototype of the chuck; (6) Along the traveling direction of the material strip 11, at the S5 station, the edges of each clamping plate portion 15 on the material strip 11 are pre-formed with tooth processing, so that a plurality of protrusions 8 protruding downward are formed on the edges of the clamping plate portion 15; the edges of each clamping plate portion 15 corresponding to the left cutout portion 1 21a, the left cutout portion 21b and the left cutout portion 3 21c of the outer periphery of the annular boss 14 at the S5 station on the material strip 11 are pre-formed with tooth processing, and at the same time, the edges of each clamping plate portion 15 corresponding to the right cutout portion 1 20a, the right cutout portion 20b and the right cutout portion 3 20c of the outer periphery of the annular boss 14 at the S402 station are pre-formed with tooth processing. The left cutout portion 21b corresponds to two clamping plate portions 15, and the left cutout portion 1 21a, the left cutout portion 3 21c, the right cutout portion 1 20a, the right cutout portion 20b and the right cutout portion 3 20c each correspond to one clamping plate portion 15; (7) Along the traveling direction of the material strip 11, at the S6 station, each of the clamping plate portions 15 on the material strip 11 is subjected to a 90° forming toothing process, so that the edge of each of the clamping plate portions 15 is bent downward to form a clamping portion 6b, and the groove 7 is located next to the clamping portion 6b; (8) Along the traveling direction of the material strip 11, at the S7 station, each support plate portion 16 on the material strip 11 is subjected to Z-folding surface forming, so that the support plate portion 16 is formed into an arc-shaped connecting portion 5b and a horizontal pressing portion 5a, and the connecting edge 17 is located between the pressing portion 5a and the material strip 11; (9) Along the traveling direction of the material strip 11, at the S8 station, each clamping plate portion 15 of the material strip 11 is subjected to a 90° secondary forming tooth processing, so that the clamping plate portion 15 is formed into a circumferential limiting portion 6a vertically downward, and the clamping portion 6b is horizontally arranged at the lower side of the circumferential limiting portion 6a; (10) Along the traveling direction of the material strip 11, at the S9 station, a large-diameter circular hole 19 is finely punched on the annular folding plate 1 excess portion 18 with the positioning circle center 12 of the S9 station as the center on the material strip 11, so that the annular folding plate 1 excess portion 18 is formed into an annular folding plate 3, the diameter of the large-diameter circular hole 19 is larger than the diameter of the small-diameter circular hole 13, and the large-diameter circular hole 19 is coaxially arranged with the annular folding plate 1 excess portion 18; (11) Along the traveling direction of the material strip 11, the tooth shaping is performed at the S10 station, and each protrusion 8 of each clamping portion 6b of each chuck body 1 on the material strip 11 is shaped; (12) The finished fuel tank chuck is peeled off at the S11 station along the traveling direction of the material strip 11, and the connecting edges 17 between the pressing portions 5a of the chuck body 1 and the material strip 11 are cut off, so that the finished fuel tank chuck is separated from the material strip 11; (13) The waste material is cut off at the S12 station along the moving direction of the material strip 11. The tooth shaping is performed to avoid the influence of the previous processing technology on the protrusion 8. The finished chuck can be separated from the material strip 11 by peeling. 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.

[0030] The width of the material strip 11 is 210-220 mm.

[0031] The stations S1, S2, S201, S3, S401, S402, S5, S6, S7, S8, S9, S10, S11, and S12 on the material strip 11 are arranged in sequence and equidistantly, and the distance between any two adjacent stations is 190-198 mm. The positioning circle center 12 of the stations S2 and S201 coincides with the center of the small-diameter circular hole 13, and the positioning circle center 12 of the stations S3, S401, S402, S5, S6, S7, S8, S9, S10, and S11 coincides with the center of the annular boss 14. The distance of each step of the material strip 11 is equal.

[0032] The material strip 11 of the present invention is provided with at least fourteen workstations, and a progressive die matching each workstation of the material strip 11 is installed on the stamping machine. The material strip 11 moves in a step-by-step manner, and the distance moved by each step of the material strip 11 is equal. Each time the die of the stamping machine punches once, the progressive die sequentially performs the following processing steps on the material strip 11: punching process holes 2, pre-punching large circular holes, empty steps, stretching bosses upward, cutting the right side shape of the fuel tank chuck, cutting the left side shape of the fuel tank chuck, pre-forming flower teeth, 90-degree forming flower teeth, Z-folding surface forming, 90-degree second forming flower teeth, fine-punching large circular holes, shaping flower teeth, stripping the finished chuck, and waste cutting. Finally, the finished fuel tank chuck is stripped at the S11 workstation, and the fuel tank chuck is separated from the material strip 11; and the waste cutting is performed at the S12 workstation. When pre-punching the small-diameter circular hole 13, a margin is left, and when fine-punching the large-diameter circular hole 19, the margin is cut off to obtain a ring-shaped folding plate 13. The present invention can realize continuous, rapid and efficient production of fuel tank chucks, thereby improving the production and processing efficiency of the chucks.

[0033] A fuel tank chuck is manufactured by adopting the above manufacturing process.

[0034] The fuel tank chuck includes an annular chuck body 1, the central axis of the chuck body 1 is vertically arranged, and a circle of process holes 2 are arranged on the chuck body 1 and are evenly spaced along the circumferential direction. An annular folding plate 3 is arranged on the inner periphery of the lower end of the chuck body 1, and the folding plate 3 is arranged horizontally. An annular folding plate 2 4 is arranged on the outer periphery of the upper end of the chuck body 1, and the folding plate 2 4 is arranged horizontally. A plurality of support pressing plates 5 are arranged on the outer periphery of the folding plate 2 4 and are spaced along the circumferential direction. The support pressing plate 5 includes a horizontal clamping portion 5a and an arc-shaped connecting portion 1 5b. The upper surface height of the clamping portion 5a is lower than the upper surface height of the chuck body 1. The clamping portion 5a is connected to the folding plate 2 4 of the chuck body 1 through the connecting portion 1 5b as a whole. The chuck body The outer periphery of the folding plate 24 of the chuck body 1 is also provided with a plurality of L-shaped clamping plates 6 spaced apart along the circumferential direction. Each clamping plate 6 and each supporting plate 5 are arranged alternately along the circumferential direction in sequence. The clamping plate 6 includes a vertical circumferential limiting portion 6a, and a horizontal clamping portion 6b is arranged on the upper side of the circumferential limiting portion 6a. The circumferential limiting portion 6a is connected to the folding plate 24 of the chuck body 1 through the connecting portion 26c as a whole. The length of the circumferential limiting portion 6a along the circumferential direction is greater than the length of the clamping portion 6b along the circumferential direction. A groove 7 is provided on the circumferential limiting portion 6a, and a plurality of protruding portions 8 protruding downward are spaced apart on the clamping portion 6b. A clamping groove 9 is formed between any two adjacent protruding portions 8, and the groove 7 is arranged close to the clamping portion 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. Seven support plates 5 and chuck plates 6 are arranged at intervals along the outer circumference of the chuck body 1, wherein the circumferential length of one support plate 5 is greater than the circumferential lengths of the other support plates 5, and the support plate 5 is provided with a plurality of notches 10 distributed at intervals along the circumference.

[0035] The fuel tank chuck of the present invention is injection molded on the plastic fuel tank, and the injected plastic is embedded in the process hole 2 of the chuck body 1, so that the fuel tank chuck is fixed to the fuel tank, and the fuel pump is installed on the fuel tank chuck, and the fuel pump is fixed by tightening the locking chuck, and the locking chuck cooperates with the fuel tank chuck to lock the fuel pump. The fuel tank chuck of the present invention can be continuously, quickly and efficiently produced through the manufacturing process, and the fuel tank chuck is injection molded and fixed on the plastic fuel tank.

[0036] The present invention is not limited to the above-mentioned embodiments. On the basis of the technical solution disclosed in the present invention, technicians in this field can make some substitutions and deformations to some technical features therein according to the disclosed technical content without creative labor, and these substitutions and deformations are all within the protection scope of the present invention.

Claims

1. A fuel tank chuck manufacturing process, characterized in that: The steps include: (1) Unwinding and flattening the wound material strip, and pulling the material strip into the stamping machine. The material strip moves in one direction in a step-by-step manner. The material strip has a plurality of work stations corresponding to the stamping machine. Each work station of the stamping machine corresponding to the material strip is provided with a positioning circle center for determining the circumferential and radial directions of the fuel tank chuck to be processed; (2) Along the traveling direction of the material strip, at the S1 station, the stamping machine works to punch out a circle of process holes evenly spaced along the circumferential direction around the positioning center of the S1 station of the material strip; (3) Along the traveling direction of the material strip, at the S2 station, a small-diameter circular hole is pre-punched on the material strip with the positioning circle center of the S2 station as the center, and the inner wall of the small-diameter circular hole on the material strip is arranged correspondingly close to each process hole; (4) Along the moving direction of the material strip, at the S3 station, with the positioning circle center of the S3 station as the center, the material strip is located at the periphery of the small-diameter circular hole and the annular boss is stretched upward, and the annular boss is the chuck body; (5) Along the traveling direction of the material strip, at the S4 station, the outer edge material is punched off along the outer periphery of the annular boss on the material strip; (6) Along the traveling direction of the material strip, at the S5 station, the edges of each card plate portion on the material strip are pre-formed with tooth processing, so that the edges of the card plate portions are formed with a plurality of protrusions protruding downward; (7) Along the traveling direction of the material strip, at the S6 station, each clamping plate portion on the material strip is subjected to 90° forming tooth processing, so that the edge of each clamping plate portion is bent downward to form a clamping portion, and the groove is located next to the clamping portion; (8) Along the traveling direction of the material strip, at the S7 station, each support plate portion on the material strip is subjected to Z-folding surface forming, so that the support plate portion is formed into an arc-shaped connecting portion and a horizontal clamping portion, and the connecting edge is located between the clamping portion and the material strip; (9) Along the traveling direction of the material strip, at the S8 station, each clamping plate portion of the material strip is subjected to a 90° secondary forming tooth processing, so that the clamping plate portion is formed into a circumferential limiting portion vertically downward, and the clamping portion is horizontally arranged at the lower side of the circumferential limiting portion; (10) Along the traveling direction of the material strip, at the S9 station, a large-diameter circular hole is finely punched on the excess portion of the annular folding plate 1 with the positioning circle center of the S9 station as the center on the material strip, so that the excess portion of the annular folding plate 1 is formed into annular folding plate 1, the diameter of the large-diameter circular hole is larger than the diameter of the small-diameter circular hole, and the large-diameter circular hole is coaxially arranged with the excess portion of the annular folding plate 1.

2. A fuel tank chuck manufacturing process according to claim 1, characterized in that: The following steps are also included: (11) Along the traveling direction of the material strip, the flower teeth are shaped at the S10 station, and the protrusions of the clamping parts of the chuck bodies on the material strip are shaped; (12) Along the traveling direction of the material strip, the finished fuel tank chuck is peeled off at the S11 station, and the connecting edges between the pressing parts of the chuck body and the material strip are cut off, so that the finished fuel tank chuck is separated from the material strip; (13) The waste is cut off at the S12 station along the direction of travel of the material strip.

3. A fuel tank chuck manufacturing process according to claim 1 or 2, characterized in that: There is also a step (301) between steps (3) and (4), and there is also a S201 station between the S2 station and the S3 station on the material strip, and the S201 station is an empty station; in step (4), a horizontal annular folding plate and a surplus portion are formed on the inner periphery of the upper end of the annular boss, and 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 the step (5), the S4 station on the material belt includes the S401 station and the S402 station arranged along the direction of travel of the material belt, the outer shape edge material includes the right outer shape edge material located on the periphery of the annular boss at the S401 station on the material belt and the left outer shape edge material located on the periphery of the annular boss at the S402 station, the right outer shape edge material includes the right cut-out portion 1, the right cut-out portion 2 and the right cut-out portion 3 which are spaced apart in a clockwise direction along the arc direction with the positioning circle center of the S401 station as the center, the left outer shape edge material includes the left cut-out portion 1, the left cut-out portion 2 and the left cut-out portion 3 which are spaced apart in a counterclockwise direction along the arc direction with the positioning circle center of the S402 station as the center, the right The side cut-out portion 2 and the left side cut-out portion 2 are integrally arranged, the circumferential length of the left side cut-out portion 2 is greater than the circumferential length of the right side cut-out portion 2, and there is a spacing between the right side outer shape edge material, the left side outer shape edge material and the corresponding annular boss; at the S402 station, after the corresponding right side outer shape edge material and the left side outer shape edge material are punched out in sequence, the outer periphery of the corresponding annular boss forms a plurality of support pressure plate portions and clamping plate portions to be processed that are distributed at intervals along the circumference, and the number of each support pressure plate portion and clamping plate portion to be processed is equal, and each support pressure plate portion and clamping plate portion is staggered in sequence along the circumference of the annular boss, and a connecting edge is left between each support pressure plate portion to be processed and the material strip, and a groove is provided on the clamping plate portion.

5. A fuel tank chuck manufacturing process according to claim 4, characterized in that: In the step (6), pre-forming tooth processing is performed on the edges of the clamping plate parts corresponding to the left side cut-out part 1, the left side cut-out part 2 and the left side cut-out part 3 of the outer periphery of the annular boss of the S5 station on the material strip, and pre-forming tooth processing is also performed on the edges of the clamping plate parts corresponding to the right side cut-out part 1, the right side cut-out part 2 and the right side cut-out part 3 of the outer periphery of the annular boss of the S402 station.

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

7. A fuel tank chuck manufacturing process according to claim 6, characterized in that: The stations S1, S2, S201, S3, S401, S402, S5, S6, S7, S8, S9, S10, S11, and S12 on the material strip are arranged equidistantly in sequence, and the distance between any two adjacent stations is 190-198 mm. The positioning center of the stations S2 and S201 coincides with the center of the small-diameter circular hole, and the positioning center of the stations S3, S401, S402, S5, S6, S7, S8, S9, S10, and S11 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: It includes an annular chuck body, the central axis of the chuck body is vertically arranged, a circle of process holes distributed at equal intervals along the circumferential direction is opened on the chuck body, an annular folding plate 1 is arranged on the inner periphery of the lower end of the chuck body, and the folding plate 1 is arranged horizontally, an annular folding plate 2 is arranged on the outer periphery of the upper end of the chuck body, and the folding plate 2 is arranged horizontally, and a plurality of supporting pressure plates distributed at intervals along the circumferential direction are arranged on the outer periphery of the folding plate 2, the supporting pressure plate includes a horizontal clamping part and an arc-shaped connecting part 1, the upper surface height of the clamping part is lower than the upper surface height of the chuck body, the clamping part is connected to the folding plate 2 of the chuck body through the connecting part 1 as a whole, and the chuck A plurality of L-shaped clamping plates are also provided on the outer periphery of the second folding plate of the disk body and are distributed at intervals along the circumferential direction. Each clamping plate and each supporting pressure plate are arranged in an alternating manner in the circumferential direction. The clamping plate includes a vertical circumferential limiting portion, and a horizontal clamping portion is provided on the upper side of the circumferential limiting portion. The circumferential limiting portion is connected to the second folding plate of the chuck body through a second connecting portion as a whole. The length of the circumferential limiting portion along the circumferential direction is greater than the length of the clamping portion along the circumferential direction. A groove is provided on the circumferential limiting portion, and a plurality of downwardly protruding protrusions are provided on the clamping portion at intervals. A clamping groove is formed between any two adjacent protrusions, and the groove is arranged close to the clamping portion.

10. A fuel tank chuck according to claim 9, characterized in that: The supporting pressure plates and the clamping plates are both arranged in seven intervals along the circumferential direction of the chuck body, wherein the circumferential length of one supporting pressure plate is greater than the circumferential lengths of the other supporting pressure plates, and the supporting pressure plate is provided with a plurality of notches distributed in the circumferential direction at intervals.

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