A gradual forming device for automobile sheet metal parts of different thicknesses

Abstract

The present invention discloses a gradual forming device for automobile sheet metal parts of different thicknesses in the technical field of automobile sheet metal processing devices, comprising: a mounting seat; a conveying device, arranged on one side of the top of the mounting seat; a gradual forming part, the gradual forming part comprising: a mounting frame, provided with two groups, the two groups of mounting frames are symmetrically arranged at two ends of the other side of the top of the mounting seat; a limiting part, the limiting part comprising: a limiting frame, provided with two groups, the two groups of limiting frames are movably sleeved on the two ends of the outer wall of the two groups of forming rollers and placed on the inner side of the mounting frame; a limiting plate, fixedly arranged on the side of the limiting frame facing the conveying device. This technical solution provides a limiting part at the gradual forming part, and the limiting plates on both sides contact the side of the automobile sheet metal blank through the chain plate conveyor belt unit to limit it, so as to avoid the side of the automobile sheet metal blank extending outward and deforming during pressing, thereby ensuring the gradual forming quality of the automobile sheet metal parts.

Description

Technical Field

[0001] The invention relates to the technical field of automobile sheet metal processing devices, in particular to a gradual forming device for automobile sheet metal parts with different thicknesses. Background Art

[0002] Sheet metal parts have the characteristics of light weight, high strength, conductivity, low cost, and good performance in large-scale mass production, and have been widely used in the automotive industry.

[0003] Some existing plate-like automobile sheet metal parts have different thickness areas, that is, some areas on the automobile sheet metal parts are required to be thicker, and some areas are required to be thinner, in order to ensure the stable use of the plate-like automobile sheet metal parts. At present, the processing process of such automobile sheet metal parts is: the automobile sheet metal blank is placed in a heating furnace for heating and then sent to a gradual forming device for forming. The traditional gradual forming device forms the heated automobile sheet metal blank by pressing. However, because the automobile sheet metal blank is in a high temperature state, the automobile sheet metal blank will extend and deform to the side during pressing, resulting in a lot of time for manual trimming through the equipment after processing, which is troublesome and reduces the forming quality of automobile sheet metal parts. To this end, we propose a gradual forming device for automobile sheet metal parts of different thicknesses. Summary of the invention

[0004] The object of the present invention is to provide a gradual forming device for automobile sheet metal parts of different thicknesses to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a gradual forming device for automobile sheet metal parts of different thicknesses, comprising:

[0006] Mounting seat;

[0007] A conveying device, arranged on one side of the top of the mounting seat;

[0008] The gradually-shaped part is arranged on the other side of the top of the mounting seat, and the gradually-shaped part comprises:

[0009] There are two groups of mounting frames, and the two groups of mounting frames are symmetrically arranged at two ends of the other side of the top of the mounting seat;

[0010] There are two groups of forming rollers, the two groups of forming rollers are symmetrically slidably arranged between two groups of mounting frames, and the forming rollers are perpendicular to the mounting frames;

[0011] The limiting part comprises:

[0012] There are two sets of limit frames, which are movably sleeved on both ends of the outer walls of the two sets of forming rollers and placed on the inner side of the mounting frame;

[0013] A limiting plate is fixedly arranged on the side of the limiting frame facing the conveying device, and is used to limit the automobile sheet metal blank to be processed conveyed by the conveying device;

[0014] a protrusion fixed on a side of the limit frame away from the conveying device; and

[0015] The telescopic device 1 is fixed on the side of the mounting frame away from the conveying device, and the output end of the telescopic device 1 is connected to a protrusion for driving the limit frame to move on the outer walls of the two groups of forming rollers.

[0016] A further improvement is that an assembly opening is opened through the limit plate, and a chain conveyor belt unit is arranged in the assembly opening, the chain conveyor belt unit is used to limit the automobile sheet metal blank to be processed conveyed by the conveying device, and the chain conveyor belt unit performs a circular motion under the horizontal movement force of the automobile sheet metal blank to be processed, and the chain conveyor belt unit includes chain plate sections and multiple groups of support shafts.

[0017] A further improvement is that the limiting part further includes a pressing part, and the pressing part is divided into two groups, and the two groups of pressing parts are respectively arranged at the top and the bottom of the limiting plate, and the pressing part includes:

[0018] A guide rail, the guide rail is transversely fixed on a side of the limit plate close to the forming roller and is placed outside the chain conveyor belt unit, and a movable seat is slidably arranged in a guide rail groove of the guide rail;

[0019] A guide seat, fixed on one side of the movable seat;

[0020] A movable frame is inserted through the guide seat;

[0021] A second telescopic device, one end of which is connected to the movable frame and the other end of which is connected to the guide seat, wherein the second telescopic device is used to drive the movable frame to move upward or downward relative to the guide seat; and

[0022] A pressing wheel, whose rotating shaft is connected to one side of the movable frame and close to the center of the limiting plate, is used to contact the outer wall side of the automobile sheet metal blank to be processed.

[0023] A further improvement is that the compression unit further comprises:

[0024] A driving plate is rotatably arranged on the limit plate and close to one end of the conveying device through a shaft, and one end of the shaft on the driving plate close to the center of the limit plate is connected to one group of supporting shafts in the chain plate conveyor belt unit to drive the driving plate to rotate when the chain plate conveyor belt unit circulates; and

[0025] The connecting arm has one end rotatably connected to a side of the driving disc away from the limiting plate, and the other end rotatably connected to an insert, and the insert is fixed to the guide seat.

[0026] A further improvement is that the side of the pressure wheel away from the center of the forming roller is in contact with the outer side of the chain conveyor belt unit, and a ring array is embedded in the side of the pressure wheel away from the center of the forming roller with multiple groups of balls in contact with the outer side of the chain conveyor belt unit.

[0027] A further improvement is that a movable opening is provided through the mounting frame, both ends of the two groups of forming rollers are rotatably connected with sliding blocks that can move in the movable opening, a guide rod is fixed in the movable opening, and the two groups of sliding blocks on the same side are movably sleeved on the outer wall of a group of guide rods, and the gradual forming part also includes:

[0028] There are two groups of connecting blocks, and the two groups of connecting blocks are respectively fixed on the outsides of the two groups of sliding blocks in one group of mounting frames;

[0029] A bidirectional lead screw, one end of which is rotatably connected to the mounting seat, and the other end of which is rotatably connected to a support seat, the support seat is fixed to the top of the outer side of the mounting frame, and the two sets of connecting blocks are respectively threadedly sleeved on the top and bottom of the outer wall of the bidirectional lead screw; and,

[0030] The driving device is fixed on the top of the support seat and connected to one end of the bidirectional lead screw for driving the bidirectional lead screw to rotate.

[0031] In summary, the present application discloses a gradual forming device for automobile sheet metal parts of different thicknesses.

[0032] The technical solution provides a limiting portion at the gradual forming portion. When the automobile sheet metal blank is pressed by the forming roller, the limiting plates on both sides contact the side of the automobile sheet metal blank through the chain plate conveyor belt unit to limit it, so as to avoid the side of the automobile sheet metal blank extending outward and deforming during pressing, thereby ensuring the gradual forming quality of the automobile sheet metal parts, reducing the labor intensity of manual post-processing, and improving work efficiency. At the same time, the chain plate conveyor belt unit is used to contact the side of the automobile sheet metal blank. When the automobile sheet metal blank is pressed by the transmission of the conveying device, the chain plate conveyor belt unit passively moves in an elliptical manner, which on the one hand reduces the wear between the automobile sheet metal blank and on the other hand does not generate a large noise between the two, so that the limiting portion has a longer service life and further improves the gradual forming quality of the automobile sheet metal blank. At the same time, when the chain plate conveyor belt unit moves, the connecting arm is driven by the driving disc to drive the pressing wheel to reciprocate on the side of the automobile sheet metal blank, thereby avoiding the side of the automobile sheet metal blank extending outward and deforming during pressing, thereby ensuring the flatness of the automobile sheet metal blank before being pressed by the forming roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A three-dimensional diagram of the structure of a gradual forming device for automobile sheet metal parts of different thicknesses according to the present invention;

[0034] Figure 2A three-dimensional diagram of the structure of the limiting part in a gradual forming device for automobile sheet metal parts of different thicknesses according to the present invention;

[0035] Figure 3 It is a three-dimensional diagram of the chain conveyor belt unit structure in a gradual forming device for automobile sheet metal parts of different thicknesses according to the present invention;

[0036] Figure 4 This is a three-dimensional diagram of the entire structure of a medium-pressure device for gradually forming automobile sheet metal parts of different thicknesses according to the present invention.

[0037] In the figure: 1, mounting seat; 2, conveying device; 3, gradual forming part; 31, mounting frame; 32, connecting block; 33, driving device; 34, forming roller; 35, bidirectional screw; 4, limiting part; 41, limiting frame; 42, limiting plate; 43, protrusion; 44, telescopic device 1; 45, chain plate conveyor belt unit; 46, pressing part; 461, guide rail; 462, movable frame; 463, telescopic device 2; 464, pressing wheel; 465, ball bearing; 466, driving disk; 467, guide seat; 468, connecting arm. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Example 1

[0040] See also Figure 1-2 , a gradual forming device for automobile sheet metal parts of different thicknesses, comprising: a mounting seat 1, a conveying device 2, a gradual forming part 3 and a limiting part 4;

[0041] The mounting seat 1 plays the role of supporting and mounting the structure, and the shape of the mounting seat 1 is preferably rectangular;

[0042] The conveying device 2 is arranged at the left end of the top of the mounting seat 1, and is used to convey the automobile sheet metal blank to the gradual forming part 3 for processing after being heated in the heating furnace. The conveying device 2 in this embodiment includes two groups of mounting frames 31, conveying rollers symmetrically arranged between the two groups of mounting frames 31, and a rotating motor arranged on the side wall of the mounting frame 31 to drive the conveying rollers to rotate, or the conveying device 2 includes a workbench, a telescopic device arranged on the workbench, and a clamping mechanism connected to one end of the telescopic device. Of course, the conveying device 2 is not limited to the above structure;

[0043] The gradual forming part 3 is arranged at the top right end of the mounting seat 1, and is used to process the automobile sheet metal blank conveyed by the conveying device 2. The gradual forming part 3 includes: a mounting frame 31, a connecting block 32, a driving device 33, a forming roller 34 and a bidirectional screw 35;

[0044] Among them, there are two groups of mounting frames 31, which are in an inverted T shape. The two groups of mounting frames 31 are symmetrically arranged at the front and rear ends of the right side of the top of the mounting seat 1. The mounting frames 31 are fixed to the mounting seat 1 by bolt-like fixing components. A movable opening is opened on the front and back of the mounting frames 31 to adjust the position of the forming roller 34. Two groups of sliding blocks are movably arranged in the movable opening. The sliding blocks can move up and down in the movable opening. In order to prevent the sliding blocks from detaching from the movable opening, a group of guide rods are vertically fixed in the movable opening, and the sliding blocks are movably sleeved on the outer wall of the guide rods.

[0045] There are two groups of forming rollers 34, which are symmetrically arranged between the two groups of mounting frames 31. Specifically, the front and rear ends of the upper forming rollers 34 are rotatably connected to one end of the front and rear top sliding blocks respectively, and the front and rear ends of the lower forming rollers 34 are rotatably connected to one end of the front and rear bottom sliding blocks respectively.

[0046] The connecting block 32 is fixed to the end of the front sliding block away from the forming roller 34. The connecting block 32 drives the front sliding block to move upward / downward to adjust the distance between the two sets of forming rollers 34. The automobile sheet metal blank is transmitted between the two sets of forming rollers 34 under the action of the conveying device 2. By changing the distance between the two sets of forming rollers 34, different thickness areas can be processed on the automobile sheet metal blank. For example, the thickness of some areas on the automobile sheet metal blank is required to be thinner. Assuming that the thickness is A, when the part is between the two sets of forming rollers 34, the two sets of forming rollers 34 can be adjusted to be close to each other so that the distance between the two sets of forming rollers 34 is also A.

[0047] The bidirectional lead screw 35 has one end rotatably connected to the front mounting seat 1 through a bearing, and the other end is rotatably provided with a support seat through a bearing, and the support seat is fixed to the top of the side of the front mounting frame 31 away from the forming roller 34, and two groups of connecting blocks 32 are respectively threadedly sleeved on the top and bottom of the outer wall of the bidirectional lead screw 35, so that the two groups of connecting blocks 32 are close to each other / far away from each other when the bidirectional lead screw 35 rotates, thereby achieving the purpose of adjusting the distance between the two groups of forming rollers 34;

[0048] The driving device 33 is fixed on the top of the support seat, and its output end is fixed to one end of the bidirectional screw 35, and is used to drive the bidirectional screw 35 to rotate. The driving device 33 includes a servo motor and a reducer;

[0049] The limiting portion 4 is arranged on the gradual forming portion 3, and is used to limit the side of the automobile sheet metal blank when it is formed. Because the automobile sheet metal blank has been heated, under the pressure given by the forming roller 34, the automobile sheet metal blank will extend to the side. In order to prevent the extension and deformation of the automobile sheet metal blank from affecting subsequent processing, the limiting portion 4 is used for limiting.

[0050] Example 2

[0051] See also Figure 2-3 The limiting part 4 includes: a limiting frame 41, a limiting plate 42, a protrusion 43 and a telescopic device 44;

[0052] Among them, there are two sets of limit frames 41, and movable openings are opened on the front and back of the limit frames 41 so as not to interfere with the position adjustment of the forming rollers 34. The two sets of limit frames 41 are respectively movably sleeved on the front side and the rear side of the outer wall of the two sets of forming rollers 34, and at the same time, the two sets of limit frames 41 are respectively movably sleeved on the front side and the rear side of the outer wall of the two sets of forming rollers 34. Figure 2 It can be seen that the limit frame 41 is placed inside the mounting frame 31, and a set of guide rods are provided at the top and bottom between the two sets of mounting frames 31, and the limit frame 41 is sleeved on the guide rods so that the limit frame 41 moves forward / backward along the guide rods;

[0053] The limiting plate 42 is fixedly arranged on the left side of the limiting frame 41, and is used to contact the side wall of the automobile sheet metal blank when the automobile sheet metal blank is processed to limit it, so as to prevent the automobile sheet metal blank from extending to the side under the action of the forming roller 34;

[0054] The protrusion 43 is fixedly arranged on the right side of the limit frame 41 and serves to connect the telescopic device 1 44;

[0055] There are two groups of telescopic devices 44, which are respectively fixed on the right sides of the front and rear side mounting frames 31. A cylinder, a hydraulic cylinder or an electro-hydraulic push cylinder can be used. The output end of the front telescopic device 44 is connected to the front protrusion 43, and the output end of the rear telescopic device 44 is connected to the rear protrusion 43, which is convenient for adjusting the limit plate 42 to contact with the side position of the automobile sheet metal blank.

[0056] Example 3

[0057] See also Figure 3-4 , the limiting part 4 also includes: a chain plate conveyor belt unit 45;

[0058] Among them, an assembly opening is opened through the front and back of the limit plate 42, and the chain plate conveyor belt unit 45 is arranged in the assembly opening. The chain plate conveyor belt unit 45 belongs to the prior art. The chain plate conveyor belt unit 45 includes an elliptical chain plate section and multiple groups of supporting shafts. The chain plate sections are connected by hinges at the head and tail to form a closed connection, forming a transmission belt similar to a belt conveyor. The multiple groups of supporting shafts are rotatably arranged in the assembly opening so that the chain plate sections are transmitted around them. When the chain plate sections move, the multiple groups of supporting shafts rotate synchronously. No further details are given here. The limit part 4 specifically adopts the chain plate conveyor belt unit 45 to contact the outer wall of the automobile sheet metal blank to be formed;

[0059] The automobile sheet metal blank to be formed moves under the action of the conveying device 2. If it directly contacts and rubs with the limit plate 42, it will cause wear of the automobile sheet metal blank and the limit plate 42, and will also generate a lot of noise. The present application adopts a chain plate conveyor belt unit 45, which does not require an independent driving device to drive the conveying. It acts as a follow-up component. After one side of the chain plate conveyor belt unit 45 contacts the automobile sheet metal blank, when the automobile sheet metal blank is conveyed to the forming roller 34, the chain plate conveyor belt unit 45 performs an elliptical motion under the movement of the automobile sheet metal blank. On the one hand, it reduces the wear between the two, and on the other hand, it does not generate a lot of noise between the two. At the same time, the surface of the chain plate conveyor belt unit 45 is flat, which can stably limit the side of the automobile sheet metal blank.

[0060] Example 4

[0061] See also Figure 3-4 Furthermore, the limiting part 4 further includes: a pressing part 46, which is composed of two groups, which are respectively arranged at the top and the bottom of the limiting plate 42;

[0062] The following is an explanation of the position of the pressing part 46 disposed on the top of the limiting plate 42. Of course, the pressing part 46 at the bottom of the limiting plate 42 has the same structure, but the installation position is changed accordingly, which will not be described in detail here.

[0063] The pressing part 46 includes: a guide rail 461, a movable frame 462, a second telescopic device 463, a pressing wheel 464, a ball bearing 465, a driving plate 466, a guide seat 467 and a connecting arm 468;

[0064] The guide rail 461 is transversely fixed to the top of the side of the limiting plate 42 close to the forming roller 34, and a matching movable seat is slidably arranged in the guide groove of the guide rail 461;

[0065] The guide seat 467 is fixed on the side of the movable seat away from the guide rail 461. A movable opening is penetrated on the guide seat 467 so that the movable frame 462 can move up and down. An insert is provided on the side of the guide seat 467 away from the forming roller 34 so as to be rotatably connected to the other end of the connecting arm 468. The insert is specifically placed above the top of the limiting plate 42.

[0066] The movable frame 462 is inserted into the movable opening of the guide seat 467, and the movable frame 462 plays the role of supporting and installing the structure;

[0067] The second telescopic device 463 is arranged on the movable frame 462. The second telescopic device 463 can adopt an electric telescopic rod. The output end of the second telescopic device 463 is connected to the top of the guide seat 467. The second telescopic device 463 can drive the movable frame 462 to move relative to the guide seat 467.

[0068] The pressing wheel 464 has a rotating shaft connected to the bottom of one side of the movable frame 462. The bottom of the pressing wheel 464 is placed below the movable frame 462 and is used to contact the outer wall of the side of the automobile sheet metal blank. The outer side of the pressing wheel 464 is in contact with the chain plate conveyor belt unit 45. In order to reduce the wear between the two, a ring array of balls 465 is embedded on one side of the pressing wheel 464 close to the chain plate conveyor belt unit 45;

[0069] The driving disk 466 is rotatably arranged at the top left end of the limiting plate 42 through the shaft body, and the driving disk 466 is also arranged on the left side of the guide seat 467. Specifically, one end of the shaft body away from the driving disk 466 can be connected to a group of supporting shafts in the chain plate conveyor belt unit 45, so that the chain plate conveyor belt unit 45 drives the shaft body to rotate during the cyclic motion, and then the driving disk 466 rotates;

[0070] The connecting arm 468 has one end connected to the top rotation axis of the driving disk 466 and the other end connected to the top rotation axis of the insert. When the driving disk 466 rotates, the insert is driven by the connecting arm 468 to make the guide seat 467 reciprocate in the guide rail 461, and the side of the automobile sheet metal blank is pressed flat by the pressing wheel 464.

[0071] It should be noted that, because the automobile sheet metal blank is heated in a heating furnace and then processed by the gradual forming device, the structures in the present application are preferably made of high temperature resistant materials, which will not be described in detail herein.

[0072] To summarize, the working principle of a gradual forming device for automobile sheet metal parts of different thicknesses is as follows: the electrical components of the present application are all connected to an external power supply through wires. When in use, the automobile sheet metal blank is placed in a heating furnace for heating. After heating, the automobile sheet metal blank is sent to the conveying device 2, and the conveying device 2 conveys the automobile sheet metal blank to two sets of forming rollers 34. By opening the telescopic device 1 44, the limit frame 41 drives the limit plate 42 to move until the chain plate conveyor belt unit 45 contacts the side of the automobile sheet metal blank. By opening the telescopic device 2 463, the top pressure wheel 464 contacts the top of the side of the automobile sheet metal blank, and the bottom pressure wheel 464 contacts the bottom of the side of the automobile sheet metal blank. Driven by the conveying device 2, the automobile sheet metal blank passes through the two sets of forming. The rollers 34 are pressed and formed. During pressing, the driving device 33 is turned on to drive the bidirectional screw 35, so that the distance between the two sets of forming rollers 34 changes, so that different thickness areas can be pressed out on the automobile sheet metal blank. During pressing, the chain plate conveyor belt unit 45 limits the sides of the automobile sheet metal blank so that its sides will not extend outward, thereby improving its forming quality. At the same time, the chain plate conveyor belt unit 45 performs a circular motion with the movement of the automobile sheet metal blank, thereby driving the driving disk 466 to rotate, and the driving disk 466 drives the guide seat 467 to reciprocate along the guide rail 461 through the connecting arm 468, and then the pressing wheel 464 reciprocates on the side of the automobile sheet metal blank, ensuring the flatness of the side of the automobile sheet metal blank, and further improving the gradual forming quality of the automobile sheet metal blank.

[0073] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gradual forming device for automobile sheet metal parts of different thicknesses, characterized in that: include: Mounting seat (1); A conveying device (2) is arranged on one side of the top of the mounting seat (1); The gradually-shaped forming portion (3) is arranged on the other side of the top of the mounting seat (1), and the gradually-shaped forming portion (3) comprises: Two groups of mounting frames (31) are provided, and the two groups of mounting frames (31) are symmetrically arranged at two ends of the other side of the top of the mounting seat (1); Two groups of forming rollers (34) are provided, and the two groups of forming rollers (34) are symmetrically slidably arranged between two groups of mounting frames (31) in an up-and-down manner, and the forming rollers (34) are perpendicular to the mounting frames (31); The limiting part (4) comprises: The limiting frames (41) are provided in two groups, and the two groups of limiting frames (41) are respectively movably sleeved on the two ends of the outer walls of the two groups of forming rollers (34) and are placed on the inner side of the mounting frame (31); A limiting plate (42) is fixedly arranged on a side of the limiting frame (41) facing the conveying device (2) and is used to limit the position of the automobile sheet metal blank to be processed conveyed by the conveying device (2); a protrusion (43) fixed on a side of the limiting frame (41) away from the conveying device (2); and A telescopic device (44) is fixed on a side of the mounting frame (31) away from the conveying device (2), and an output end of the telescopic device (44) is connected to a protrusion (43) for driving the limit frame (41) to move on the outer walls of the two sets of forming rollers (34); The limiting plate (42) is provided with an assembly opening, and a chain plate conveyor belt unit (45) is arranged in the assembly opening, the chain plate conveyor belt unit (45) is used to limit the position of the automobile sheet metal blank to be processed conveyed by the conveying device (2), and the chain plate conveyor belt unit (45) performs a cyclic motion under the horizontal movement force of the automobile sheet metal blank to be processed, and the chain plate conveyor belt unit (45) includes a chain plate section and a plurality of support shaft groups; The limiting portion (4) further comprises a pressing portion (46), wherein the pressing portion (46) comprises two groups, and the two groups of the pressing portions (46) are respectively arranged at the top and the bottom of the limiting plate (42), and the pressing portion (46) comprises: A guide rail (461), the guide rail being transversely fixed on a side of the limit plate (42) close to the forming roller (34) and being placed outside the chain conveyor belt unit (45), and a movable seat being slidably arranged in a guide rail groove of the guide rail (461); A guide seat (467) is fixed to one side of the movable seat; A movable frame (462) is inserted through the guide seat (467); a second telescopic device (463), one end of which is connected to the movable frame (462) and the other end of which is connected to the guide seat (467), the second telescopic device (463) being used to drive the movable frame (462) to move upward or downward relative to the guide seat (467); and A pressing wheel (464) has a rotating shaft connected to one side of the movable frame (462) and close to the center of the limiting plate (42), and the pressing wheel (464) is used to contact the outer wall side of the automobile sheet metal blank to be processed.

2. The device for gradually forming automobile sheet metal parts of different thicknesses according to claim 1, characterized in that: The pressing section (46) further comprises: A driving disk (466) is rotatably arranged on the limiting plate (42) and close to one end of the conveying device (2) through a shaft, and one end of the shaft on the driving disk (466) close to the center of the limiting plate (42) is connected to one group of supporting shafts in the chain plate conveyor belt unit (45) to drive the driving disk (466) to rotate when the chain plate conveyor belt unit (45) circulates; and The connecting arm (468) has one end rotatably connected to a side of the driving disk (466) away from the limiting plate (42), and the other end rotatably connected to an insert, and the insert is fixed to the guide seat (467).

3. The device for gradually forming automobile sheet metal parts of different thicknesses according to claim 2, characterized in that: The side of the pressure wheel (464) away from the center of the forming roller (34) is in contact with the outer side of the chain conveyor belt unit (45), and a plurality of groups of balls (465) in contact with the outer side of the chain conveyor belt unit (45) are embedded in a circular array on the side of the pressure wheel (464) away from the center of the forming roller (34).

4. The device for gradually forming automobile sheet metal parts of different thicknesses according to claim 1, characterized in that: The mounting frame (31) is provided with a movable opening, and both ends of the two groups of forming rollers (34) are rotatably connected to sliding blocks that can move in the movable opening, and a guide rod is fixed in the movable opening. The two groups of sliding blocks on the same side are movably sleeved on the outer wall of a group of guide rods. The gradual forming part (3) also includes: Two groups of connecting blocks (32) are provided, and the two groups of connecting blocks (32) are respectively fixed on the outsides of the two groups of sliding blocks in one group of mounting frames (31); A bidirectional lead screw (35) is rotatably connected to the mounting seat (1) at one end and is rotatably connected to a support seat at the other end, the support seat is fixed to the top of the outer side of the mounting frame (31), and two groups of connecting blocks (32) are respectively threadedly sleeved on the top and bottom of the outer wall of the bidirectional lead screw (35); and, The driving device (33) is fixed on the top of the support seat and connected to one end of the bidirectional lead screw (35) for driving the bidirectional lead screw (35) to rotate.

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