Flanging mechanism suitable for oval automobile silencer outer shell

Abstract

According to the flanging mechanism suitable for the oval automobile silencer outer shell, a gear motor, a transmission rod and a driven gear ring are matched to drive a rotating connecting base and a rotating disc to rotate, and in the rotating process of the rotating disc, an outer crank arm and an inner crank arm are driven to do 180-degree reciprocating circular motion around the circle center of the rotating disc; meanwhile, the distance between the flanging pressing wheel and the center point of the rotating disc is changed according to the edge of the oval automobile silencer outer shell through the cooperation of the air cylinder and the connecting shaft between the outer crank arm and the inner crank arm, so that one-time flanging treatment is achieved, the efficiency is greatly improved compared with manual flanging, oval automobile silencer outer shells of different shapes can be machined, and the machining efficiency is improved. The flexibility and the application range are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile muffler flanging equipment, in particular to a flanging mechanism suitable for oval automobile muffler shell bodies. BACKGROUND

[0002] The automobile muffler is used to reduce the noise generated by the engine of the motor vehicle, and the shell body of the automobile muffler serves as a muffling chamber to realize the installation of the muffling inner core. The automobile muffler shell body is provided with an end plate at both ends, but before the end plate is installed, flanging treatment is generally required.

[0003] The flanging of the circular shell body can be directly achieved by adopting a motor to drive a flanging pressure wheel to move in a circular motion, but the flanging of the oval automobile muffler shell body is not applicable, and artificial flanging or fixed inner support type flanging mechanism is generally used for flanging treatment. However, the inner support type flanging mechanism is generally customized according to different automobile muffler shell bodies, and when the automobile muffler shell body is replaced with a new model, the flanging mechanism needs to be re-customized, which greatly increases the cost. Therefore, an improved technology is urgently needed to solve the problem existing in the prior art. UTILITY MODEL CONTENT

[0004] The utility model aims to provide a flanging mechanism suitable for oval automobile muffler shell bodies, which can realize one-time flanging treatment, greatly improve the efficiency of artificial flanging, and process oval automobile muffler shell bodies of different shapes, greatly improve flexibility and application range, to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a flanging mechanism suitable for oval automobile muffler shell bodies, comprising a rack, a driving mechanism and a flanging assembly;

[0006] The rack is provided with a center circular hole and an eccentric circular hole, a fixed ring seat is coaxially arranged on the outer surface of the rack and located at the center circular hole, and a pressure ring is arranged on the outer side of the fixed ring seat through bolts;

[0007] The driving mechanism comprises a reduction motor and a transmission rod, the reduction motor and the transmission rod are arranged on the inner side of the rack through supports respectively, the output shaft of the reduction motor is provided with a driving gear, the transmission rod is provided with a driven gear and a transmission gear, the driving gear is engaged with the driven gear, the transmission rod is arranged in the eccentric circular hole, and the transmission gear is arranged at the outer end of the rack;

[0008] The flanging assembly comprises a driven gear ring, a rotary connecting seat, a rotating disc, a cylinder, an outer curved arm, an inner curved arm and a flanging pressure wheel, the driven gear ring is movably arranged on the inner side of a fixed ring seat and a pressing ring, the driven gear ring is engaged with a transmission gear, the side of the driven gear ring away from the rack is connected with the side of the rotating disc through the rotary connecting seat, the center position of the rotating disc is connected with a rotary joint, the rotary joint is arranged in the center hole of the rack, the rotating disc comprises a first disc, a connecting section and a second disc, the center positions of the first disc and the second disc are connected through the connecting section, a cylinder mounting seat is further arranged between the first disc and the second disc, a cylinder is arranged on the outer side surface of the cylinder mounting seat, one end of the outer curved arm and the inner curved arm is respectively connected with a shaft rod, the outer curved arm is movably arranged on the outer side surface of the second disc, the inner curved arm is movably arranged on the surface of the first disc close to the rack, the outer side surface of the end of the outer curved arm away from the shaft rod is rotatably provided with the flanging pressure wheel, the middle positions of the outer curved arm and the inner curved arm are connected through a connecting shaft, the output shaft of the cylinder is connected with the connecting shaft through a connecting ring, the first disc and the second disc are both provided with through grooves, and the positions of the through grooves correspond to each other, and the connecting shaft is movably arranged in the through grooves of the first disc and the second disc.

[0009] Preferably, the outer side of the rack is further provided with a moving seat.

[0010] Preferably, the outer side surface of the second disc is further provided with a limiting shaft through a fixing block.

[0011] Preferably, the side of the rotary connecting seat is provided with a groove, and the inner curved arm is movably arranged at the groove of the rotary connecting seat.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] Firstly, the cooperation of the speed reducer motor, the transmission rod and the driven gear ring drives the rotary connecting seat and the rotating disc to rotate, in the process of rotating disc rotation, the outer curved arm and the inner curved arm are driven to make 180° back and forth circular motion with the center of the rotating disc, and the cooperation of the cylinder and the connecting shaft between the outer curved arm and the inner curved arm makes the distance of the flanging pressure wheel to the center point of the rotating disc change according to the edge of the elliptical automobile muffler shell, so that one-time flanging processing is realized, the efficiency of manual flanging is greatly improved, and different shapes of elliptical automobile muffler shells can be processed, and the flexibility and application range are greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of the utility model.

[0015] Figure 2 It is a cross-section structure schematic view of the utility model;

[0016] Figure 3 It is a structure schematic view of the flanging assembly;

[0017] Figure 4 It is a front view structure schematic view of the flanging assembly;

[0018] Figure 5 It is a cross-section structure schematic view of the flanging assembly;

[0019] Figure 6 It is a cross-section structure schematic view of the flanging assembly at the connecting shaft.

[0020] In the drawing: frame 1, center circular hole 2, eccentric circular hole 3, fixed ring seat 4, compression ring 5, speed reducer motor 6, transmission rod 7, driving gear 8, driven gear 9, transmission gear 10, driven gear ring 11, rotary connecting seat 12, rotating disc 13, air cylinder 14, outer curved arm 15, inner curved arm 16, flanging compression wheel 17, rotary joint 18, air cylinder mounting seat 19, shaft rod 20, connecting shaft 21, connecting ring 22, through slot 23, moving seat 24, limiting shaft 25, first disc 1301, connecting section 1302, second disc 1303. DETAILED DESCRIPTION

[0021] The technical scheme of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model;

[0022] It should be noted that in the description of the utility model, it should be noted that the terms "inner", "outer", "upper", "lower", "two sides", "one end", "the other end", "left", "right" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0023] Please refer to Figures 1-6 The utility model provides a kind of technical scheme: a flanging mechanism suitable for oval automobile muffler outer shell, including frame 1, driving mechanism and flanging assembly;

[0024] The rack 1 is provided with a center hole 2 and an eccentric hole 3, a fixed ring seat 4 is coaxially arranged on the outer surface of the rack 1 at the center hole 2, a compression ring 5 is arranged on the outer side of the fixed ring seat 4 through bolts, a moving seat 24 is further arranged on the outer side of the rack 1, the moving seat 24 can realize the installation of the bracket and drive the bracket to move, and in use, the end of the automobile muffler shell is supported by the bracket and is moved towards the flanging mechanism through the moving seat 24.

[0025] The driving mechanism comprises a speed reducer 6 and a transmission rod 7, the speed reducer 6 and the transmission rod 7 are arranged on the inner side of the rack 1 through supports, the output shaft of the speed reducer 6 is provided with a driving gear 8, the transmission rod 7 is provided with a driven gear 9 and a transmission gear 10, the driving gear 8 is engaged with the driven gear 9, and the transmission rod 7 is arranged in the eccentric hole 3 and the transmission gear 10 is arranged at the outer end of the rack 1.

[0026] The flanging assembly comprises a driven gear ring 11, a rotary connecting seat 12, a rotating disc 13, a cylinder 14, an outer curved arm 15, an inner curved arm 16 and a flanging compression wheel 17, the driven gear ring 11 is movably arranged on the inner side of the fixed ring seat 4 and the compression ring 5, the driven gear ring 11 is engaged with the transmission gear 10, the side of the driven gear ring 11 away from the rack 1 is connected with one side of the rotating disc 13 through the rotary connecting seat 12, the center position of the rotating disc 13 is connected with a rotary joint 18, the rotary joint 18 is arranged in the center hole of the rack 1, the rotating disc 13 comprises a first disc 1301, a connecting segment 1302 and a second disc 1303, the center positions of the first disc 1301 and the second disc 1303 are connected through the connecting segment 1302, a cylinder mounting seat 19 is further arranged between the first disc 1301 and the second disc 1303, the outer surface of the cylinder mounting seat 19 is provided with the cylinder 14, one end of the outer curved arm 15 and the inner curved arm 16 is respectively connected with a shaft rod 20, the outer curved arm 15 is movably arranged on the outer surface of the second disc 1303, the inner curved arm 16 is movably arranged on the surface of the first disc 1301 close to the rack 1, a groove is arranged on one side of the rotary connecting seat 12, the inner curved arm 16 is movably arranged in the groove of the rotary connecting seat 12, so as to realize the installation of the inner curved arm 16, the flanging compression wheel 17 is rotatably arranged on the outer surface of the end of the outer curved arm 15 away from the shaft rod 20, the middle positions of the outer curved arm 15 and the inner curved arm 16 are connected through a connecting shaft 21, the output shaft of the cylinder 14 is connected with the connecting shaft 21 through a connecting ring 22, the first disc 1301 and the second disc 1303 are both provided with through grooves 23, the positions of the through grooves 23 correspond to each other, the connecting shaft 21 is movably arranged in the through grooves 23 of the first disc 1301 and the second disc 1303, and the outer surface of the second disc 1303 is further provided with a limiting shaft 25 through a fixed block, so as to realize the limiting of the end of the automobile muffler shell.

[0027] Installation method and use principle: first, assemble the flanging assembly, install the cylinder mounting seat 19 between the first disc 1301 and the second disc 1303, connect the cylinder 14 with the cylinder mounting seat 19, connect the outer curved arm 15 and the inner curved arm 16 through the shaft rod 20 and the connecting shaft 21, and pass the connecting shaft 21 through the through slot 23 of the first disc 1301 and the second disc 1303 and the connecting ring 22 at the end of the piston rod of the cylinder 14, then connect the rotary connecting seat 12 with the first disc 1301, and make the groove of the rotary connecting seat 12 correspond to the position of the inner curved arm 16, complete the assembly of the flanging assembly. Next, the reduction motor 6 and the transmission rod 7 are installed inside the rack 1 through the support, and the driving gear 8 is engaged with the driven gear 9, while the transmission gear 10 is located outside the rack 1, then the driven gear ring 11 is placed into the fixed ring seat 4, and the compression ring 5 is used to press the driven gear ring 11 in the fixed ring seat 4, at this time, the transmission gear 10 is engaged with the inner teeth of the driven gear ring 11, finally the rotary connecting seat 12 is connected with the driven gear ring 11 through bolts, the installation is completed. When in use, the end of the formed and edge sealed automobile muffler outer shell is pulled to the flanging structure through the transfer seat 24, the cooperation of the driving gear 8 on the output shaft of the reduction motor 6 and the driven gear 9 drives the transmission rod 7 to rotate, the transmission rod 7 drives the rotary connecting seat 12 and the rotating disc 13 to rotate through the engagement of the transmission gear 10 and the driven gear ring 11, during the rotation process, because the automobile muffler outer shell is elliptical, the piston rod of the cylinder 14 synchronously pushes and retracts, so that the outer curved arm 15 and the inner curved arm 16 move outward or inward, so that the flanging pressure wheel 17 moves outward or inward. When the flanging pressure wheel 17 moves to the two ends of the automobile muffler outer shell, the piston rod of the cylinder 14 pushes outward, and the outer curved arm 15 and the inner curved arm 16 are pushed outward, so that the flanging pressure wheel 17 is pushed outward to cooperate with the edges of the two ends of the automobile muffler outer shell, when the flanging pressure wheel 17 moves to the middle of the automobile muffler outer shell, the piston rod of the cylinder 14 is retracted, and the outer curved arm 15 and the inner curved arm 16 are retracted, so that the flanging pressure wheel 17 is retracted to cooperate with the edge of the middle position of the automobile muffler outer shell, so as to realize flanging. The reduction motor 6 adopts reciprocating motor, rotates back and forth by 180°, and ensures that the connecting line of the cylinder 14 is not affected. The utility model has the advantages of reasonable structure, first, the cooperation of the reduction motor 6, the transmission rod 7 and the driven gear ring 11 drives the rotary connecting seat 12 and the rotating disc 13 to rotate, during the rotation process of the rotating disc 13, the outer curved arm 15 and the inner curved arm 16 make back and forth 180° reciprocating circular motion with the center of the rotating disc 13, at the same time, the cooperation of the connecting shaft 21 between the cylinder 14 and the outer curved arm 15 and the inner curved arm 16 makes the distance from the flanging pressure wheel 17 to the center point of the rotating disc 13 change according to the edge of the elliptical automobile muffler outer shell, so as to realize one-time flanging processing, the efficiency of manual flanging is greatly improved, and different shapes of elliptical automobile muffler outer shell can be processed, the flexibility and application range are greatly improved.

[0028] The parts not described in detail in the utility model are the known technology of the skilled in the art.

[0029] Finally, it should be pointed out that the above specific embodiments are only used to illustrate the technical solutions of the utility model and are not limiting. Although the utility model has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that the technical solutions of the utility model can be modified and replaced equivalently without departing from the spirit and scope of the technical solutions of the utility model, and all of them should be covered in the scope of the claims of the utility model.

Claims

1. A flange mechanism suitable for an elliptical automobile muffler housing, characterized in that: The utility model relates to a kind of edge turning devices, including rack (1), drive mechanism and flanging assembly; The rack (1) is provided with a central circular hole (2) and an eccentric circular hole (3) through it, and a fixed ring seat (4) is coaxially arranged on the outer surface of the rack (1) at the central circular hole (2). The outer side of the fixed ring seat (4) is provided with a pressure ring (5) through bolts. The drive mechanism includes a reduction motor (6) and a transmission rod (7), which are respectively arranged on the inner side of the rack (1) through a support. The output shaft of the reduction motor (6) is provided with a driving gear (8), the transmission rod (7) is provided with a driven gear (9) and a transmission gear (10), the driving gear (8) is engaged with the driven gear (9), and the transmission rod (7) is arranged in the eccentric circular hole (3) and the transmission gear (10) is arranged at the outer end of the rack (1). The flanging assembly includes a driven gear ring (11), a rotary connection seat (12), a rotating disc (13), an air cylinder (14), an outer curved arm (15), an inner curved arm (16) and an edge turning pressure roller (17). The driven gear ring (11) is movably arranged on the inner side of the fixed ring seat (4) and the pressure ring (5), and is engaged with the transmission gear (10). The side of the driven gear ring (11) away from the rack (1) is connected with one side of the rotating disc (13) through the rotary connection seat (12). The central position of the rotating disc (13) is connected with a swivel joint (18), and the swivel joint (18) is arranged in the central hole of the rack (1). The rotating disc (13) includes a first disc (1301), a connecting segment (1302) and a second disc (1303). The central positions of the first disc (1301) and the second disc (1303) are connected through the connecting segment (1302). An air cylinder mounting seat (19) is further arranged between the first disc (1301) and the second disc (1303). The outer surface of the air cylinder mounting seat (19) is provided with the air cylinder (14). One end of the outer curved arm (15) and the inner curved arm (16) is respectively connected with a shaft rod (20). The outer curved arm (15) is movably arranged on the outer surface of the second disc (1303). The inner curved arm (16) is movably arranged on the surface of the first disc (1301) close to the rack (1). The outer surface of the end of the outer curved arm (15) away from the shaft rod (20) is rotatably provided with the edge turning pressure roller (17). The middle positions of the outer curved arm (15) and the inner curved arm (16) are connected through a connecting shaft (21). The output shaft of the air cylinder (14) is connected with the connecting shaft (21) through a connecting ring (22). The first disc (1301) and the second disc (1303) are both provided with a through slot (23), and the positions of the through slots (23) correspond to each other. The connecting shaft (21) is movably arranged in the through slots (23) of the first disc (1301) and the second disc (1303).

2. A flanging mechanism for an elliptical automobile muffler outer shell according to claim 1, characterized in that: The outer side of the rack (1) is further provided with a transfer seat (24).

3. A flanging mechanism for an elliptical automobile muffler outer shell according to claim 1, characterized in that: The outer surface of the second disc (1303) is further provided with a limiting shaft (25) through a fixed block.

4. A flanging mechanism for an elliptical automobile muffler outer shell according to claim 1, characterized in that: The rotating connecting base (12) is provided with a groove on one side, and the inner curved arm (16) is movably arranged at the groove of the rotating connecting base (12).

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