Fuel tank bracket and production device thereof

Abstract

The present invention relates to the field of fuel tank brackets, and specifically to a fuel tank bracket and a production device thereof, including a fixed sheet metal bracket, a steel belt lining, and a chain strap tightly mounted on the outside of the steel belt lining, both sides of the chain strap end with the same type of chain links, both ends of the chain strap are connected to a screw, the end of each screw is formed with a sleeve portion for sleeve connection with the corresponding chain link, the far end of the cross arm of the fixed sheet metal bracket is formed with a strip through hole for the corresponding screw to pass through, and each of the screws is screwed with a ball head nut for cooperating with an anti-slip hole or a strip through hole for anti-return. The present invention effectively protects the pressure contact part between the chain and the outer wall of the fuel tank by cooperating with the steel belt through the chain strap, and on the other hand, the flexible chain strap can adapt to fuel tanks with various outer wall curvatures, eliminating the development cost of sub-brackets for different fuel tanks.

Description

Technical Field

[0001] The invention relates to the field of oil tank brackets, and in particular to an oil tank bracket and a production device thereof. Background Art

[0002] Due to the load characteristics of trucks, they often need to be equipped with larger fuel tanks or even auxiliary fuel tanks. The existing method of fixing the fuel tanks is to use a fuel tank bracket. The fuel tank bracket includes two parts. One part is a fixed bracket in an "L" shape, which is used to fix the side beams of the truck and is used to support large-volume fuel tanks. The other part is a sub-bracket that cooperates with the fixed bracket to hold the fuel tank tightly on the fixed bracket. The shape of the sub-bracket is not the standard L-shape of the fixed bracket. The sub-bracket needs to fit the outer shape of the fuel tank. Therefore, fuel tanks of different shapes require special sub-brackets. For example, the sub-brackets used for rectangular fuel tanks, cylindrical fuel tanks and rounded rectangular fuel tanks are all different in shape. These sub-brackets require different molds during the production process, and the manufacturing and design costs are high, and the adaptability is very poor. Summary of the invention

[0003] Based on this, it is necessary to provide a fuel tank bracket and a production device thereof to address the existing technical problems.

[0004] In order to solve the problems of the prior art, the technical solution adopted by the present invention is:

[0005] A fuel tank bracket comprises a fixed sheet metal bracket, which is in an "L" shape, and a nut entry end of the anti-drop hole is formed at the upper end of the vertical arm of the fixed sheet metal bracket, and a steel belt lining and a chain strap tightly installed on the outside of the steel belt lining, both sides of the chain strap end with the same type of chain links, and both ends of the chain strap are connected to a screw rod, and the end of each screw rod is formed with a sleeve portion for being sleeved with a corresponding chain link, and a strip through-hole for the corresponding screw rod to pass through is formed at the far end of the horizontal arm of the fixed sheet metal bracket, and each of the screw rods is screwed with a ball head nut for cooperating with the anti-drop hole or the strip through-hole for preventing reverse flow.

[0006] Furthermore, both ends of the steel strip lining are stamped and bent to form a coiling portion for movably sleeved on the screw.

[0007] A production device for preparing an oil tank bracket, comprising a chain positioning seat, a clamping mechanism for clamping one end of a chain against the chain positioning seat, a slide cylinder located beside the chain positioning seat, a multi-stage hydraulic cylinder fixedly arranged on the output end of the slide cylinder, and a drop hopper for storing rib pins located between the slide cylinder and the chain positioning seat, wherein the translation direction of the output end of the slide cylinder is perpendicular to the length direction of the chain positioning seat, a positioning groove for flattening the outermost inner link of the chain belt is formed at the front end of the chain positioning seat, the output shaft of the multi-stage hydraulic cylinder is arranged toward the positioning groove, a push rod with the same outer diameter as the rib pin is connected to the output shaft of the multi-stage hydraulic cylinder, a drop hopper is provided with a drop slot for the push rod to pass horizontally, and the push rod, the drop slot and the positioning groove are arranged linearly.

[0008] Furthermore, the chain positioning seat is composed of a base plate and a tooth seat formed on the base plate, the positioning groove is formed on one end of the base plate away from the tooth seat, and both sides of the top of the tooth seat are formed with beveled portions for facilitating the downward embedding of the chain link, and a fixed seat for supporting a transverse supporting chain plate is formed on the side of the positioning groove away from the multi-stage hydraulic cylinder, and a circular through hole for the pin shaft of the chain link to pass through is opened at the center of the fixed seat, and a support bar for the chain plate to be erected is formed between the positioning groove and the tooth seat, and the positioning groove is a semi-cylindrical groove shape, and the positioning groove, the circular through hole and the push rod are coaxial.

[0009] Furthermore, a recessed groove having a diameter greater than that of the circular through hole is formed on the side of the circular through hole away from the positioning groove, a rubber ring is attached to the bottom of the recessed groove, an embedded ring for pressing and fixing the rubber ring is embedded at the outer end of the recessed groove, the aperture of the embedded ring is equal to the aperture of the circular through hole, the aperture of the circular through hole is greater than the diameter of the chain pin shaft, and the aperture of the rubber ring is smaller than the diameter of the chain pin shaft.

[0010] Furthermore, a stand is fixedly provided directly below the drop hopper, and a semi-cylindrical material receiving trough for accommodating a single rib pin is formed on the top of the stand. The upper ends of the stand are fixedly connected to the drop hopper above via two connecting plates, and the space formed by the semi-cylindrical material receiving trough, the drop hopper and the two connecting plates together constitute the above-mentioned drop trough position.

[0011] Furthermore, a push rod for pushing the roller of the chain link upward is provided at the bottom of the front end of the chain positioning seat, and a vertical downward-penetrating accommodating through hole is formed at the bottom of the positioning groove, and the push rod is movably arranged in the accommodating through hole, and a downward-extending cylindrical shell is formed at the bottom of the accommodating through hole, and a connecting shell is fixedly connected to the lower end of the cylindrical shell, and an electromagnet is fixedly arranged in the connecting shell, and the lower end of the push rod is fixedly connected to an annular magnet coaxial with the electromagnet.

[0012] Furthermore, the clamping mechanism includes a downward pressing cylinder and a T-shaped clamping block fixedly connected to the flap output end of the downward pressing cylinder, the T-shaped clamping block is used to clamp the chain onto the chain positioning seat, and a buffer rubber pad is attached to the lower end of the T-shaped clamping block.

[0013] Furthermore, an L-shaped adapter plate is fixedly connected to the output end of the slide cylinder, and a fixing sleeve for fixing the multi-stage hydraulic cylinder in a horizontal state is provided on one side of the L-shaped adapter plate.

[0014] Furthermore, the push rod is composed of a rod-shaped body and an insertion rod body, the diameter of the insertion rod body is smaller than the hole diameter of the rib pin, and the axial diameter of the rod-shaped body is larger than the inner diameter of the rib pin and smaller than the outer diameter of the rib pin.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] Firstly, the present invention replaces the traditional die-cast sub-bracket with a chain belt, and has excellent fuel tank adaptability;

[0017] Secondly, the present invention effectively protects the pressure contact part between the chain and the outer wall of the fuel tank by using the chain strap in combination with the steel belt. On the other hand, the flexible chain strap can adapt to fuel tanks with various outer wall curvatures, eliminating the development cost of sub-brackets for different fuel tanks.

[0018] Thirdly, the semi-automatic tooling of the present invention enables workers to efficiently and quickly transform finished chains into the chain straps required by the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the fuel tank bracket and the fuel tank after being installed according to the present invention;

[0020] Figure 2 is a schematic plan cross-sectional view of the fuel tank bracket of the present invention;

[0021] Figure 3 The three-dimensional structure of the fuel tank bracket of the present invention is shown in FIG. Figure 1 ;

[0022] Figure 4 yes Figure 3 A schematic diagram of the structure enlargement at point A;

[0023] Figure 5 The three-dimensional structure of the fuel tank bracket of the present invention is shown in FIG. Figure 2 ;

[0024] Figure 6 yes Figure 5 A schematic diagram of the structure at B in FIG.

[0025] Figure 7 It is a three-dimensional structural schematic diagram of the production device of the present invention;

[0026] Figure 8 yes Figure 7 Schematic diagram of the plane;

[0027] Fig. 9 yes Figure 8 A plane section view along the CC line;

[0028] Fig.10 yes Fig. 9 A schematic diagram of the structure at D in FIG.

[0029] Fig.11 yes Figure 7 A top view schematic diagram of

[0030] Fig.12 yes Fig.11 A plane cross-sectional view along line EE;

[0031] Fig.13 yes Figure 7 The local three-dimensional structure of Figure 1 ;

[0032] Fig.14 yes Figure 7 The local three-dimensional structure of Figure 2 ;

[0033] Fig.15 It is a three-dimensional structural diagram of the chain positioning seat.

[0034] The numbers in the figure are: 1-fixed sheet metal bracket; 2-anti-drop hole; 3-steel belt lining; 4-chain strap; 5-screw; 6-chain link; 7-chain plate; 8-pin shaft; 9-sleeve part; 10-strip perforation; 11-ball head nut; 12-rolling part; 13-chain positioning seat; 14-slide cylinder; 15-multi-stage hydraulic cylinder; 16-ribbed pin; 17-drop hopper; 18-positioning groove; 19-push rod; 20-bottom plate; 21-tooth seat; 22-angled part; 23- Fixed seat; 24-circular through hole; 25-support bar; 26-sink; 27-rubber ring; 28-embedded ring; 29-stand; 30-semi-cylindrical receiving trough; 31-connecting plate; 32-roller; 33-push rod; 34-cylindrical shell; 35-connecting shell; 36-electromagnet; 37-ring magnet; 38-down-pressure cylinder; 39-T-type clamping block; 40-buffer rubber pad; 41-L-type adapter plate; 42-fixed sleeve; 43-rod-shaped body; 44-insertion rod body. DETAILED DESCRIPTION

[0035] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0036] Reference Figures 1 to 6 As shown, a fuel tank bracket comprises a fixed sheet metal bracket 1, which is in an "L" shape, and a nut entry end of the anti-drop hole 2 is formed at the upper end of the vertical arm of the fixed sheet metal bracket 1, and the nut entry end of the anti-drop hole 2 is located at the lower end of the anti-drop hole 2, and also comprises a steel belt lining 3 and a chain strap 4 tightly installed on the outside of the steel belt lining 3, both sides of the chain strap 4 end with the same type of chain link 6, and both ends of the chain strap 4 are connected to a screw rod 5, and the end of each screw rod 5 is formed with a sleeve portion 9 for sleeved with the corresponding chain link 6, and the far end of the horizontal arm of the fixed sheet metal bracket 1 is formed with a strip through hole 10 for the corresponding screw rod 5 to pass through, and each of the screw rods 5 is screwed with a ball head nut 11 for cooperating with the anti-drop hole 2 or the strip through hole 10 for preventing reverse flow, and both ends of the steel belt lining 3 are stamped and bent to form a wrapping portion 12 for movably sleeved on the screw rod 5.

[0037] The present invention connects the fixed sheet metal bracket 1 to the vehicle frame, and then mounts the fuel tank on the fixed sheet metal bracket 1. Then, one end of the chain strap 4 with the steel belt lining 3 is first screwed on the ball nut 11, and the ball nut 11 is passed through the anti-drop hole 2. Then, the ball nut 11 and the corresponding screw rod 5 are slid upward to complete the connection between one end of the chain strap 4 and the upper end of the fixed sheet metal bracket 1. Then, the screw rod 5 at the lower end of the chain strap 4 is passed through the strip through-hole 10, and the ball nut 11 is tightened by a sleeve and a wrench to complete the installation of the fuel tank on the fixed sheet metal bracket 1. The lining 3 and the chain strap 4 are flexible in the circumferential direction of the parcel mailbox, so that they can perfectly fit the outer wall of the oil tank with various curvatures. The chain strap 4 and the outer wall of the oil tank are directly separated by the steel belt lining 3, which avoids the chain strap 4 leaving marks such as knocks or scratches on the outer wall of the oil tank, and both ends of the steel belt lining 3 are stamped and formed with a coiled portion 12, and the coil diameter of the coil portion 12 is larger than the rod diameter of the screw 5, ensuring that the coil portion 12 can be adaptively moved on the screw 5 to adapt to the internal and external length misalignment caused by the simultaneous bending of the chain strap 4 and the steel belt lining 3.

[0038] Reference Figures 7 to 15As shown, a production device for preparing a fuel tank bracket includes a chain positioning seat 13, a pressing mechanism for pressing one end of the chain onto the chain positioning seat 13, a slide cylinder 14 located beside the chain positioning seat 13, a multi-stage hydraulic cylinder 15 fixedly arranged on the output end of the slide cylinder 14, and a drop hopper 17 located between the slide cylinder 14 and the chain positioning seat 13 for storing rib pins 16, wherein the translation direction of the output end of the slide cylinder 14 is perpendicular to the length of the chain positioning seat 13. direction, a positioning groove 18 for placing the outermost inner link 6 of the chain belt 4 flat is formed at the front end of the chain positioning seat 13, the output shaft of the multi-stage hydraulic cylinder 15 is arranged toward the positioning groove 18, and a push rod 19 with an outer diameter equal to that of the rib pin 16 is connected to the output shaft of the multi-stage hydraulic cylinder 15, and a blanking slot for the push rod 19 to pass horizontally is provided on the blanking hopper 17, and the push rod 19, the blanking slot and the positioning groove 18 are arranged linearly.

[0039] As for the chain belt 4 of the present invention, since the chains produced by the chain production line are all complete chain components, and the chain belt 4 of the present invention needs to be covered with screws 5 at both ends of the chain, the existing chain production line cannot meet the requirements. Therefore, the present invention adopts semi-automatic tooling to perform secondary transformation on the finished chain, so as to facilitate workers to efficiently complete the connection with the screw 5;

[0040] Both sides of the chain belt 4 of the present invention end with inner chain links 6. Since the pin shaft 8 between the chain plates 7 of the inner chain links 6 is a hollow structure, it can be conveniently inserted into the push rod 19 with the chamfered structure at the front end of the push rod 19, thereby achieving an automatic positioning effect during the pushing process. Therefore, the chain belt 4 of the present invention adopts a chain ending with the inner chain link 6, and the pin shaft 8 of the external connection is a solid rod, which is difficult to achieve positioning connection during the pushing process, so the chain ending with the outer chain link 6 is not adopted;

[0041] The process of assembling the screw rod 5 of the semi-automatic tooling is as follows: first, the output shaft of the multi-stage hydraulic cylinder 15 drives the push rod 19 to translate toward the corresponding pin shaft 8 in the positioning groove 18, until the push rod 19 extrude the pin shaft 8 of the corresponding inner chain link 6 horizontally to complete the removal; then the multi-stage hydraulic cylinder 15 retracts and returns to its original position, at which time the limit of the pin shaft 8 is lost, and the roller 32 in the chain link 6 can be taken out by the worker; after the worker sleeves the sleeve portion 9 on the screw rod 5 onto the outer side of the roller 32, the two are put back into the positioning groove 18 on the chain positioning seat 13, and finally the screw rod 19 is driven by the multi-stage hydraulic cylinder 15 to move the push rod 19 to the corresponding inner chain link 6. The multi-stage hydraulic cylinder 15 drives the pushing rod 19 to move toward the positioning groove 18 again. During this process, the pushing rod 19 first extends into the rib pin 16 dropped from the drop hopper 17, and then continues to move with the rib pin 16 until the rib pin 16 is interference inserted into the two chain plates 7 of the corresponding chain link 6. During this process, the rib pin 16 passes through the roller 32 with the screw 5 in the positioning groove 18, and the modification process of the inner chain link 6 on one side of the chain is completed in this way. Then the chain is removed, and the modification process of the other end of the chain is completed in this way.

[0042] The multi-stage hydraulic cylinder has two strokes, the first short extension stroke is used to extrude and remove the pin shaft 8, and the second long extension stroke is used to push the rib pin 16 horizontally and embed it into the chain link 6;

[0043] The slide cylinder 14 is in a retracted state during the process of removing the pin shaft 8. At this time, the push rod 19 is close to the chain positioning seat 13, and the push rod 19 is in the blanking slot to block the lower end opening of the blanking hopper 17, thereby preventing the rib pin 16 in the blanking hopper 17 from falling. In addition, during the process of the push rod 19 moving horizontally to remove the pin shaft 8, the output shaft of the multi-stage hydraulic cylinder 15 will enter the blanking slot to block the lower end opening of the blanking hopper 17, thereby ensuring that the rib pin 16 in the blanking hopper 17 can be prevented from falling during the entire process of removing the pin shaft 8.

[0044] When the multi-stage hydraulic cylinder 15 completes the removal and reset of the pin shaft 8, the slide cylinder 14 moves, and its output shaft extends to drive the multi-stage hydraulic cylinder 15 to move in the direction away from the chain positioning seat 13. In this process, the push rod 19 will be driven to withdraw from the blanking slot. At this time, the lowest rib pin 16 in the blanking hopper 17 falls into the blanking slot. Then the multi-stage hydraulic cylinder 15 extends again, and drives the push rod 19 to move horizontally toward the chain again through the second long stroke extension. In this process, the head end of the push rod 19 is first inserted into the rib pin 16 The positioning is completed in the middle, and the rib pin 16 continues to be pushed to leave the blanking slot until it is completely embedded in the two chain plates 7 in the positioning slot 18; after complete installation, the multi-stage hydraulic cylinder 15 is retracted and reset, and the slide cylinder 14 is retracted and reset immediately. During this process, the lower end opening of the blanking hopper 17 is successively blocked by the output shaft of the multi-stage hydraulic cylinder 15 and the push rod 19, until the multi-stage hydraulic cylinder 15 and the slide cylinder 14 return to their initial state, that is, the push rod 19 returns to the position close to the chain positioning seat 13 again. This is a complete chain end modification process.

[0045] After the pin shaft 8 on the chain plate 7 is removed, mechanical wear will occur on the hole wall of the chain plate 7, which will cause the new pin shaft 8 to loosen after being inserted. Therefore, the present invention adopts a rib pin 16 to replace the new pin shaft 8. Compared with the original pin shaft 8, the rib pin 16 has a rib strip on the outer wall, so that the outer diameter of the rib pin 16 is slightly larger than the outer diameter of the pin shaft 8, and the hardness of the rib pin 16 is lower than the hardness of the chain plate 7, thereby ensuring that the cold rib strip can be smoothly inserted without loosening.

[0046] In order to quickly place one end of the chain on the chain positioning seat 13, the following features are specifically set:

[0047] The chain positioning seat 13 is composed of a base plate 20 and a tooth seat 21 formed on the base plate 20. The positioning groove 18 is formed on one end of the base plate 20 away from the tooth seat 21. Both sides of the top of the tooth seat 21 are formed with beveled portions 22 for facilitating the downward embedding of the chain link 6. A fixing seat 23 for supporting the transverse supporting chain plate 7 is formed on the side of the positioning groove 18 away from the multi-stage hydraulic cylinder 15. A circular through hole 24 for the pin shaft 8 of the chain link 6 to pass through is formed at the center of the fixing seat 23. A support bar 25 for the chain plate 7 to be erected is formed between the positioning groove 18 and the tooth seat 21. The positioning groove 18 is in the shape of a semi-cylindrical groove, and the positioning groove 18, the circular through hole 24 and the push rod 19 are coaxial.

[0048] The chain positioning seat 13 of the present invention prevents the first few chain links 6 at one end of the chain through the tooth seat 21. The beveled portion 22 facilitates the two chain plates 7 in the corresponding chain link 6 to slide down smoothly. Then, these chain links 6 are pressed against the chain positioning seat 13 through the clamping mechanism. When the outermost inner chain link 6 is placed in the positioning groove 18, its chain plate 7 overlaps with the support bar 25. At this time, the chain plate 7 is in a horizontal state and the roller 32 in the positioning groove 18 is in a suspended state. When the roller 32 is put on the screw 5 and placed in the positioning groove 18 again, the sleeve portion 9 will fill the original gap between the roller 32 and the positioning groove 18, that is, the diameter of the positioning groove 18 is greater than the diameter of the roller 32, which is equal to the outer diameter of the sleeve portion 9.

[0049] In order to ensure the separation of the removed pin 8, the following features are specifically provided:

[0050] A recessed groove 26 having a diameter larger than that of the circular through hole 24 is formed on the side of the circular through hole 24 away from the positioning groove 18. A rubber ring 27 is attached to the bottom of the recessed groove 26. An embedding ring 28 for pressing and fixing the rubber ring 27 is embedded at the outer end of the recessed groove 26. The aperture of the embedding ring 28 is equal to the aperture of the circular through hole 24. The aperture of the circular through hole 24 is larger than the diameter of the pin shaft 8 of the chain, and the aperture of the rubber ring 27 is smaller than the diameter of the pin shaft 8 of the chain.

[0051] During the process of the pushing rod 19 squeezing out and removing the pin 8, the pin 8 will squeeze through the rubber ring 27 and be smoothly sent out of the circular through hole 24. During the process of the pushing rod 19 retreating and resetting, due to the friction of the rubber ring 27, the pin 8 that has been removed and sent out will be intercepted, thereby realizing the separation of the pin 8 and the pushing rod 19.

[0052] In order to achieve that the drop hopper 17 only drops one rib pin 16 to wait for assembly during the process of the push rod 19 leaving, the following features are specifically set:

[0053] A stand 29 is fixedly provided directly below the drop hopper 17, and a semi-cylindrical material receiving trough 30 for accommodating a single rib pin 16 is formed on the top of the stand 29. The upper ends of the stand 29 are fixedly connected to the drop hopper 17 above via two connecting plates 31. The space formed by the semi-cylindrical material receiving trough 30, the drop hopper 17 and the two connecting plates 31 together constitute the above-mentioned drop trough position.

[0054] When the multi-stage hydraulic cylinder 15 retracts and the slide cylinder 14 drives the multi-stage hydraulic cylinder 15 to move further away from the chain positioning seat 13, until the pushing rod 19 is completely withdrawn from the blanking slot of the blanking hopper 17, the cold ribs above will fall into the semi-cylindrical receiving slot 30 at the top of the column, waiting for the pushing rod 19 to be pushed and inserted into the chain plate 7.

[0055] In order to enable the roller 32 to be ejected quickly after the pin 8 is removed, eliminating the trouble of manual removal, the following features are specifically set:

[0056] A push rod 33 for pushing the roller 32 of the chain link 6 upward is provided at the bottom of the front end of the chain positioning seat 13, and a receiving hole vertically penetrating downward is formed at the bottom of the positioning groove 18. The push rod 33 is movably arranged in the receiving hole, and a cylindrical shell 34 extending downward is formed at the bottom of the receiving hole. The lower end of the cylindrical shell 34 is fixedly connected to a connecting shell 35, and an electromagnet 36 is fixedly provided in the connecting shell 35. The lower end of the push rod 33 is fixedly connected to an annular magnet 37 coaxial with the electromagnet 36.

[0057] When the pin 8 is removed and the push rod 19 is retracted, the electromagnet 36 is activated to generate a magnetic force that repels the annular magnet 37, so that the push rod 33 is bounced upward in the receiving hole, and then the roller 32 that has been separated from the chain plate 7 in the positioning groove 18 is bounced up so that the worker can take it out. Then the electromagnet 36 is activated to generate a magnetic attraction force to pull the push rod 33 downward and reset it, so that the push rod 33 returns to the receiving hole. The action of the electromagnet 36 is coordinated and controlled by the controller (not shown in the figure) in combination with the action of the multi-stage hydraulic cylinder 15. This is the basic control principle and will not be repeated here.

[0058] In order to ensure that the chain does not fall off the chain positioning seat 13 during the removal of the pin 8, the following features are specifically provided:

[0059] The clamping mechanism includes a downward pressing cylinder 38 and a T-shaped clamping block 39 fixedly connected to the flap output end of the downward pressing cylinder 38. The T-shaped clamping block 39 is used to clamp the chain onto the chain positioning seat 13. A buffer rubber pad 40 is attached to the lower end of the T-shaped clamping block 39.

[0060] After several chain links 6 on one side of the chain strap 4 are embedded in the chain positioning seat 13, the flap of the downward pressure cylinder 38 is pressed down, and the lower chain link 6 is pressed against the chain positioning seat 13 through the buffer rubber pad 40 at the bottom of the T-shaped clamping block 39, ensuring that the front end of the chain strap 4 can be firmly maintained on the chain positioning seat 13.

[0061] An L-shaped adapter plate 41 is fixedly connected to the output end of the slide cylinder 14, and a fixing sleeve 42 for fixing the multi-stage hydraulic cylinder 15 in a horizontal state is provided on one side of the L-shaped adapter plate 41. The slide cylinder 14 drives the multi-stage hydraulic cylinder 15 arranged thereon to move away from or close to the chain positioning seat 13 through the translation of the L-shaped adapter plate 41. When the slide cylinder 14 drives the multi-stage hydraulic cylinder 15 away from the chain positioning seat 13, the push rod 19 is also withdrawn from the blanking groove to allow the rib pin 16 to feed downward once.

[0062] In order to ensure that the push rod 19 can enter the rib pin 16 to complete positioning during the movement and can smoothly squeeze the rib pin 16 into the chain plate 7, the following features are specifically set:

[0063] The push rod 19 is composed of a rod-shaped body 43 and an insertion rod body 44 . The diameter of the insertion rod body 44 is smaller than the hole diameter of the rib pin 16 . The axial diameter of the rod-shaped body 43 is larger than the inner diameter of the rib pin 16 and smaller than the outer diameter of the rib pin 16 .

[0064] The front end of the insertion rod body 44 is processed with an angle to ensure that it can smoothly enter the inner hole of the rib pin 16, thereby ensuring that the rib pin 16 can be picked up along the way during the forward movement of the pushing rod 19, and then in the process of inserting the rib pin 16 into the chain plate 7, the rib pin 16 is continued to be pushed into the hole on the chain plate 7 through the step where the rod-shaped main body 43 and the insertion rod body 44 are connected.

[0065] The above embodiments only express one or several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A production device for preparing a fuel tank bracket, the fuel tank bracket comprising a fixed sheet metal bracket (1), the fixed sheet metal bracket (1) being in an "L" shape, the upper end of the vertical arm of which is formed with an anti-drop hole (2), the nut entry end of the anti-drop hole (2) being located at the lower end of the anti-drop hole (2), and characterized in that: It also includes a steel belt lining (3) and a chain strap (4) tightly mounted on the outside of the steel belt lining (3), both sides of the chain strap (4) end with the same type of chain links (6), both ends of the chain strap (4) are connected to a screw rod (5), the end of each screw rod (5) is formed with a sleeve portion (9) for sleeve connection with the corresponding chain link (6), the far end of the cross arm of the fixed sheet metal bracket (1) is formed with a strip through hole (10) for the corresponding screw rod (5) to pass through, and each of the screw rods (5) is screwed with a ball head nut (11) for cooperating with the anti-drop hole (2) or the strip through hole (10) for preventing reverse flow; The production device comprises a chain positioning seat (13), a pressing mechanism for pressing one end of a chain onto the chain positioning seat (13), a slide cylinder (14) located beside the chain positioning seat (13), a multi-stage hydraulic cylinder (15) fixedly arranged on the output end of the slide cylinder (14), and a drop hopper (17) located between the slide cylinder (14) and the chain positioning seat (13) for storing rib pins (16), wherein the translation direction of the output end of the slide cylinder (14) is perpendicular to the length direction of the chain positioning seat (13), and the chain A positioning groove (18) is formed at the front end of the positioning seat (13) for placing the outermost inner link (6) of the chain belt (4) horizontally, the output shaft of the multi-stage hydraulic cylinder (15) is arranged toward the positioning groove (18), the output shaft of the multi-stage hydraulic cylinder (15) is connected to a push rod (19) having an outer diameter equal to that of the rib pin (16), the blanking hopper (17) is provided with a blanking slot for the push rod (19) to pass horizontally, and the push rod (19), the blanking slot and the positioning groove (18) are arranged linearly; The chain positioning seat (13) is composed of a bottom plate (20) and a tooth seat (21) formed on the bottom plate (20); the positioning groove (18) is formed on one end of the bottom plate (20) away from the tooth seat (21); both sides of the top of the tooth seat (21) are formed with beveled portions (22) for facilitating the downward insertion of the chain link (6); a fixing seat (23) for supporting a transverse supporting chain plate (7) is formed on the side of the positioning groove (18) away from the multi-stage hydraulic cylinder (15); a circular through hole (24) for the pin shaft (8) of the chain link (6) to pass through is formed at the center of the fixing seat (23); a support bar (25) for the chain plate (7) to be erected is formed between the positioning groove (18) and the tooth seat (21); the positioning groove (18) is in the shape of a semi-cylindrical groove; the positioning groove (18), the circular through hole (24) and the push rod (19) are coaxial; A recessed groove (26) having a diameter greater than that of the circular through hole (24) is formed on a side of the circular through hole (24) away from the positioning groove (18); a rubber ring (27) is attached to the bottom of the recessed groove (26); an embedded ring (28) for pressing and fixing the rubber ring (27) is embedded at the outer end of the recessed groove (26); the hole diameter of the embedded ring (28) is equal to the hole diameter of the circular through hole (24); the hole diameter of the circular through hole (24) is greater than the shaft diameter of the chain pin shaft (8); and the hole diameter of the rubber ring (27) is smaller than the shaft diameter of the chain pin shaft (8).

2. The production device according to claim 1, characterized in that: Both ends of the steel strip lining (3) are stamped and bent to form a coiling portion (12) for movably sleeved on the screw rod (5).

3. The production device according to claim 1, characterized in that: A stand (29) is fixedly arranged directly below the drop hopper (17), and a semi-cylindrical material receiving groove (30) for accommodating a single rib pin (16) is formed on the top of the stand (29). The upper ends of the stand (29) are fixedly connected to the drop hopper (17) above via two connecting plates (31). The space formed by the semi-cylindrical material receiving groove (30), the drop hopper (17) and the two connecting plates (31) together constitute the drop hopper position.

4. The production device according to claim 1, characterized in that: A push rod (33) for pushing the roller (32) of the chain link (6) upward is arranged at the bottom of the front end of the chain positioning seat (13); a receiving through hole vertically penetrating downward is formed at the bottom of the positioning groove (18); the push rod (33) is movably arranged in the receiving through hole; a cylindrical shell (34) extending downward is formed at the bottom of the receiving through hole; a connecting shell (35) is fixedly connected to the lower end of the cylindrical shell (34); an electromagnet (36) is fixedly arranged in the connecting shell (35); and a ring magnet (37) coaxial with the electromagnet (36) is fixedly connected to the lower end of the push rod (33).

5. The production device according to claim 1, characterized in that: The clamping mechanism comprises a downward pressing cylinder (38) and a T-shaped clamping block (39) fixedly connected to the flap output end of the downward pressing cylinder (38), wherein the T-shaped clamping block (39) is used to clamp the chain onto the chain positioning seat (13), and a buffer rubber pad (40) is attached to the lower end of the T-shaped clamping block (39).

6. The production device according to claim 1, characterized in that: An L-shaped adapter plate (41) is fixedly connected to the output end of the slide cylinder (14), and a fixing sleeve (42) for fixing the multi-stage hydraulic cylinder (15) in a horizontal state is provided on one side of the L-shaped adapter plate (41).

7. The production device according to claim 1, characterized in that: The push-insertion rod (19) is composed of a rod-shaped main body (43) and an insertion rod body (44); the diameter of the insertion rod body (44) is smaller than the hole diameter of the rib pin (16); the axial diameter of the rod-shaped main body (43) is larger than the inner diameter of the rib pin (16) and smaller than the outer diameter of the rib pin (16).

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