A stamping equipment for automobile body robot production line

Abstract

The present invention discloses a stamping device for a robotic production line for automobile bodies, which relates to the technical field of automobile body stamping devices, including a stamping machine and a stamping die arranged on the stamping machine, and also including an ejection mechanism arranged on the lower base plate for ejecting a formed workpiece in a die, the ejection mechanism including a plurality of ejection tubes fixedly connected to the side of the lower base plate close to the die, an ejection rod fixedly connected to the side of each sliding plate away from the lower base plate, a plurality of ejection holes formed in the die, each ejection rod slidably connected to the ejection hole, and a first spring fixedly connected to the side of each sliding plate away from the ejection rod. The stamping device for a robotic production line for automobile bodies of the present invention, through the provision of the ejection mechanism, utilizes multiple streams of high-pressure gas to pre-push the formed workpiece under the action of a pre-loosening component, thereby reducing the friction and clamping force between the workpiece and the die.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile body stamping equipment, in particular to a stamping equipment used in an automobile body robot production line. Background Art

[0002] Stamping is a production technology that uses the power of conventional or special stamping equipment to directly subject sheet metal to deformation force in the die and deform it, thereby obtaining product parts with a certain shape, size and performance. The die used for stamping is called a stamping die. The stamping die is a special tool for batch processing of materials into the required stamping parts.

[0003] During the stamping process, the metal sheet is placed on the die, and the punch of the punch presses the sheet down to deform or shear the sheet, thereby completing the stamping process of the sheet. After the stamping is completed, the formed workpiece is directly ejected from the die by an ejector pin or ejector rod. However, after the metal sheet is stamped, the friction and holding force of the formed workpiece in the die are large. When the ejector pin or ejector rod ejects the formed workpiece from the die, it needs to overcome a large resistance in the initial state, which easily leads to a large ejection force on the formed workpiece. Under the action of the large ejection force, it is easy to cause depressions or vertices at the ejection position on the surface of the workpiece to be removed, thereby damaging the surface of the stamped workpiece and affecting the stamping quality of the workpiece. For this reason, we propose a stamping equipment for an automobile body robot production line. Summary of the Invention

[0004] The object of the present invention is to provide a stamping device for an automobile body robot production line to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a stamping device for a robot production line of an automobile body, comprising a stamping machine and a stamping die arranged on the stamping machine, the stamping machine being provided with an upper worktable and a lower worktable, the stamping machine being provided with a driving cylinder for driving the upper worktable, the stamping die comprising an upper die and a lower die, the upper die and the lower die being respectively mounted on the upper worktable and the lower worktable, the upper die being composed of an upper base plate and a punch, the lower die being composed of a lower base plate and a die, conveyor belts being respectively provided on both sides of the stamping machine, an industrial robot being provided on one side of the stamping machine for grabbing metal sheets and stamped workpieces on the conveyor belt, and an ejection mechanism being provided on the lower base plate for ejecting the formed workpiece in the die;

[0006] The ejection mechanism includes a plurality of ejection tubes fixedly connected to the lower base plate near the side of the die, each of the ejection tubes is slidably connected to a sliding plate, and each of the sliding plates is fixedly connected to an ejection rod on a side away from the lower base plate. The die is provided with a plurality of ejection holes, and each of the ejection rods is slidably connected to the ejection holes. Each of the sliding plates is fixedly connected to a first spring on a side away from the ejection rod, and the other end of each of the first springs is connected to the bottom wall of the ejection tube, and each of the ejection rods is provided with a pre-loosening component for pre-loosening the molded workpiece in the die.

[0007] Preferably, the pre-loosening assembly includes a pre-loosening hole opened on each ejector rod, one end of each pre-loosening hole passes through the side of the ejector rod close to the die, the other end of each pre-loosening hole is provided with a circular cavity, and the inner wall of each circular cavity is provided with multiple through holes in an annular shape, and the lower workbench is provided with a pressurizing assembly for pressurizing each circular cavity.

[0008] Preferably, the charging assembly includes a first fixed plate fixedly connected to the side of the lower workbench close to the die, the first fixed plate is fixedly connected to a charging tube, the end of the charging tube close to the ejection tube is connected to a connecting tube through a pipe joint, the lower base plate is provided with a plurality of U-shaped tubes, the two ends of each of the U-shaped tubes are respectively connected to two opposite ejection tubes, the end of the connecting tube away from the pipe joint is connected to each U-shaped tube, the charging tube is slidably connected to the charging plate, and the punching machine is provided with a driving assembly for driving the charging plate.

[0009] Preferably, the ports connecting the U-shaped tubes to the ejection tubes are located between the sliding plate and the ejection rod.

[0010] Preferably, the driving assembly includes a strip plate slidably connected to the punching machine, and the side of the strip plate close to the charging tube is connected to a triangular plate through a plurality of fixing assemblies, and the charging tube is slidably connected to a driving rod at one end close to each triangular plate, and one end of the driving rod is connected to the charging plate, and the end of the driving rod away from the charging plate has a rounded corner, and the driving rod is located on the inner side wall of the charging tube and is provided with a second spring, and the two ends of the second spring are respectively connected to the charging plate and the inner wall of the charging tube, and the charging tube is provided with a sealing assembly for one-way sealing of the pressurized gas, and the punching machine is provided with a one-way assembly for allowing each triangular plate to push the driving rod in one direction.

[0011] Preferably, the sealing assembly includes a sealing tube fixedly connected to the side wall of the charging tube, and a first one-way valve and a second one-way valve are respectively provided in the sealing tube and the charging tube, and the conduction direction of the first one-way valve and the second one-way valve is from the outside of the sealing tube to the inside of the charging tube.

[0012] Preferably, the fixing assembly includes a connecting hole opened on the side of the strip plate close to the triangular plate, a connecting plate is inserted into the connecting hole, one end of the connecting plate is connected to the triangular plate, and the side wall of the strip plate is threadedly connected with a T-bolt, and one end of the T-bolt is set against the side wall of the connecting plate.

[0013] Preferably, the one-way component includes a second fixed plate fixedly connected to the inner wall of the punching machine away from the industrial robot, one side of the second fixed plate is fixedly connected to a mounting plate, a mounting hole is provided on the side of the mounting plate close to the strip plate, the bottom wall of the mounting hole is fixedly connected to a one-way plate, a first inclined surface and a second inclined surface are respectively provided at both ends of the one-way plate, a one-way pin is slidably connected between the mounting hole and the one-way plate, and one end of the one-way pin is connected to the strip plate.

[0014] Preferably, the groove width between the one-way plate and the mounting hole is matched with the one-way pin.

[0015] Preferably, the punching machine is provided with a telescopic assembly for telescoping each triangular plate, the telescopic assembly comprising a third fixed plate fixedly connected to the inner wall of the punching machine on the side close to the upper workbench, a plurality of telescopic tubes are fixedly connected to the side of the third fixed plate close to the strip plate, each of the telescopic tubes is slidably connected to a telescopic rod, one end of each telescopic rod is connected to the strip plate, a third spring is sleeved on the side wall of each telescopic tube, and both ends of each third spring are respectively connected to the third fixed plate and the strip plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The stamping equipment for the automobile body robot production line of the present invention, through the arrangement of the ejection mechanism, under the action of the pre-loosening component, utilizes the cooperation of the charging component and the driving component, and pre-pushes the formed workpiece under the action of multiple streams of high-pressure gas, which will reduce the friction and clamping force between the die and the mold, thereby reducing the ejection force applied by each ejection rod to the formed workpiece, thereby reducing the risk of depression or apex at the ejection position on the surface of the formed workpiece during the stripping process, thereby improving the stamping quality of the automobile body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the installation structure of the stamping die of the present invention on the stamping machine;

[0020] Figure 3 Schematic diagram of the positional relationship between the one-way component and the reset component of the present invention;

[0021] Figure 4This is a schematic diagram of the position structure of the drive assembly of the present invention;

[0022] Figure 5 This is a schematic diagram of the position structure of the one-way component of the present invention;

[0023] Figure 6 This is a schematic diagram of the structure of the fixing assembly of the present invention;

[0024] Figure 7 It is a structural schematic diagram of the ejection mechanism of the present invention;

[0025] Figure 8 Schematic diagram of the internal structure of the ejection mechanism of the present invention;

[0026] Figure 9 for Figure 4 Enlarged view of point A in the middle;

[0027] Figure 10 for Figure 8 Enlarged view of point B in the middle;

[0028] Figure 11 for Figure 9 Enlarged view of point C in the middle.

[0029] In the figure: 101, punching machine; 102, upper workbench; 103, lower workbench; 106, conveyor belt; 107, industrial robot; 108, upper base plate; 109, punch; 110, lower base plate; 111, die; 201, ejector tube; 202, sliding plate; 203, ejector rod; 204, ejector hole; 205, first spring; 301, pre-loose hole; 302, circular cavity; 303, through hole; 401, first fixing plate; 402, charging tube; 403, pipe joint; 404, connecting tube; 405, U-shaped tube; 406 , charging plate; 501, strip plate; 502, triangular plate; 503, driving rod; 504, second spring; 601, blocking tube; 602, first one-way valve; 603, second one-way valve; 701, connecting hole; 702, connecting plate; 703, T-bolt; 801, second fixing plate; 802, mounting plate; 803, mounting hole; 804, one-way plate; 805, first inclined plane; 806, second inclined plane; 807, one-way pin; 901, third fixing plate; 902, telescopic tube; 903, telescopic rod; 904, third spring. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0031] Example 1

[0032] See also Figures 1-11 , a stamping equipment for a robot production line of an automobile body shown in the figure includes a stamping machine 101 and a stamping die arranged on the stamping machine 101, the stamping machine 101 is provided with an upper worktable 102 and a lower worktable 103, the stamping machine 101 is provided with a driving cylinder for driving the upper worktable 102, the stamping die includes an upper die and a lower die, the upper die and the lower die are respectively installed on the upper worktable 102 and the lower worktable 103, the upper die is composed of an upper base plate 108 and a punch 109, and the lower die is composed of a lower base plate 110 and a die 111, conveyor belts 106 are respectively provided on both sides of the stamping machine 101, and an industrial robot 107 for grabbing metal sheets and stamped workpieces on the conveyor belt 106 is provided on one side of the stamping machine 101, and also includes an ejection mechanism arranged on the lower base plate 110 for ejecting the formed workpiece in the die 111;

[0033] The ejection mechanism includes a plurality of ejection tubes 201 fixedly connected to the side of the lower base plate 110 close to the die 111, each ejection tube 201 is slidably connected to a sliding plate 202, and each sliding plate 202 is fixedly connected to an ejection rod 203 on a side away from the lower base plate 110. The die 111 is provided with a plurality of ejection holes 204, and each ejection rod 203 is slidably connected to the ejection hole 204. A first spring 205 is fixedly connected to a side of each sliding plate 202 away from the ejection rod 203, and the other end of each first spring 205 is connected to the bottom wall of the ejection tube 201. Each ejection rod 203 is provided with a pre-loosening component for pre-loosening the molded workpiece in the die 111.

[0034] It should be noted here that: through the setting of the ejection mechanism, under the action of the pre-loosening component, by utilizing the cooperation of the charging component and the driving component, the pre-pushing of the formed workpiece by multiple streams of high-pressure gas will reduce the friction and clamping force between the die 111, thereby reducing the ejection force applied by each ejection rod 203 to the formed workpiece, thereby reducing the risk of depressions or vertices in the ejection position on the surface of the formed workpiece during the stripping process, thereby improving the stamping quality of the automobile body.

[0035] See also Figure 2-Figure 11 The pre-loosening assembly shown in the figure includes a pre-loosening hole 301 formed in each ejector rod 203. One end of each pre-loosening hole 301 passes through the side of the ejector rod 203 close to the die 111. The other end of each pre-loosening hole 301 is provided with a circular cavity 302. The inner wall of each circular cavity 302 is provided with a plurality of through holes 303 in an annular manner. The lower workbench 103 is provided with a pressurizing assembly for pressurizing each circular cavity 302.

[0036] It should be noted here that by setting up the pre-loosening component and utilizing multiple streams of high-pressure gas to pre-push the formed workpiece, the friction and clamping force between the workpiece and the die 111 will be reduced.

[0037] See also Figure 2-Figure 11 The charging assembly shown in the figure includes a first fixed plate 401 fixedly connected to the side of the lower workbench 103 close to the die 111, the first fixed plate 401 is fixedly connected to a charging tube 402, the end of the charging tube 402 close to the ejection tube 201 is connected to a connecting tube 404 through a pipe joint 403, the lower base plate 110 is provided with a plurality of U-shaped tubes 405, the two ends of each U-shaped tube 405 are respectively connected to two opposite ejection tubes 201, the end of the connecting tube 404 away from the pipe joint 403 is connected to each U-shaped tube 405, the charging tube 402 is slidably connected to a charging plate 406, and the punching machine 101 is provided with a driving assembly for driving the charging plate 406;

[0038] It should be noted that the pressurizing assembly is provided to fill each ejection tube 201 with high-pressure gas, thereby utilizing the high-pressure gas to push the formed workpiece, thereby achieving non-destructive pre-ejection of the formed workpiece.

[0039] See also Figure 10 , the ports where each U-shaped tube 405 is connected to each ejection tube 201 are located between the sliding plate 202 and the ejection rod 203;

[0040] It should be noted here that by arranging the ports connecting each U-shaped tube 405 and each ejection tube 201 between the sliding plate 202 and the ejection rod 203, the gas injected into the ejection tube 201 can eventually flow from each through hole 303 into the pre-loosening hole 301.

[0041] See also Figure 4 、 Figure 9 and Figure 11 , the driving assembly shown in the figure includes a strip plate 501 slidably connected to the punching machine 101, and the side of the strip plate 501 close to the charging tube 402 is connected to the triangular plate 502 through multiple fixing components, and the charging tube 402 is slidably connected to the driving rod 503 at one end close to each triangular plate 502, and one end of the driving rod 503 is connected to the charging plate 406, and the end of the driving rod 503 away from the charging plate 406 has a rounded corner, and the driving rod 503 is located on the inner side wall of the charging tube 402 and is provided with a second spring 504, and the two ends of the second spring 504 are respectively connected to the charging plate 406 and the inner wall of the charging tube 402, and the charging tube 402 is provided with a blocking component for one-way blocking of the pressurized gas, and the punching machine 101 is provided with a one-way component for allowing each triangular plate 502 to push the driving rod 503 in one direction;

[0042] It should be noted that: by setting the driving assembly and utilizing the movement of the upper workbench 102, the pressurization operation of each ejector tube 201 is achieved, thereby saving energy expenditure and reducing the cost of stripping the formed workpiece.

[0043] See also Figure 4 、 Figure 9 and Figure 11 The blocking assembly shown in the figure includes a blocking tube 601 fixedly connected to the side wall of the charging tube 402. A first one-way valve 602 and a second one-way valve 603 are respectively provided in the blocking tube 601 and the charging tube 402. The first one-way valve 602 and the second one-way valve 603 are connected in a direction from the outside of the blocking tube 601 to the inside of the charging tube 402.

[0044] It should be noted here that: by setting the blocking component, a one-way flow effect is provided for the reciprocating injection of external gas into the charging tube 402, thereby achieving the continuity of gas injection into the charging tube 402.

[0045] See also Figure 6 The fixing assembly shown in the figure includes a connecting hole 701 opened on the side of the strip plate 501 near the triangular plate 502, a connecting plate 702 is inserted into the connecting hole 701, one end of the connecting plate 702 is connected to the triangular plate 502, and a T-bolt 703 is threadedly connected to the side wall of the strip plate 501, and one end of the T-bolt 703 is set against the side wall of the connecting plate 702;

[0046] It should be noted that the fixing assembly is provided to install each triangular plate 502 , thereby facilitating control of the pressurization effect on the ejection tube 201 .

[0047] See also Figure 4 and Figure 5 The one-way assembly shown in the figure includes a second fixing plate 801 fixedly connected to the inner wall of the punching machine 101 away from the industrial robot 107, a mounting plate 802 is fixedly connected to one side of the second fixing plate 801, a mounting hole 803 is provided on the side of the mounting plate 802 close to the strip plate 501, a one-way plate 804 is fixedly connected to the bottom wall of the mounting hole 803, a first inclined surface 805 and a second inclined surface 806 are respectively provided at both ends of the one-way plate 804, a one-way pin 807 is slidably connected between the mounting hole 803 and the one-way plate 804, and one end of the one-way pin 807 is connected to the strip plate 501;

[0048] It should be noted here that: through the provision of the one-way component, each triangular plate 502 will not collide with the driving rod 503 during the upward movement, thereby avoiding excessive pressurization of each ejector tube 201, and then each ejector rod 203 can eject the molded workpiece from the die 111 in time, thereby ensuring the demolding efficiency of the molded workpiece.

[0049] See also Figure 5 , the slot width between the one-way plate 804 and the mounting hole 803 is matched with the one-way pin 807;

[0050] It should be noted here that by matching the groove width between the one-way plate 804 and the mounting hole 803 with the one-way pin 807, a one-way effect can be provided for the movement of the one-way pin 807, thereby improving the stability of the movement of the one-way pin 807.

[0051] See also Figure 9 The punching machine 101 shown in the figure is provided with a telescopic assembly for telescoping each triangular plate 502, and the telescopic assembly includes a third fixed plate 901 fixedly connected to the inner wall of the punching machine 101 on the side close to the upper workbench 102, and a plurality of telescopic tubes 902 are fixedly connected to the side of the third fixed plate 901 close to the strip plate 501, and each telescopic tube 902 is slidably connected to a telescopic rod 903, and one end of each telescopic rod 903 is connected to the strip plate 501, and a third spring 904 is sleeved on the side wall of each telescopic tube 902, and the two ends of each third spring 904 are respectively connected to the third fixed plate 901 and the strip plate 501;

[0052] It should be noted here that the telescopic assembly is provided to provide guidance and reset functions for the movement of the strip plate 501 .

[0053] In this solution: A stamping device for an automobile body robot production line includes the following steps:

[0054] When stamping an automobile body, a metal sheet is first placed on a conveyor belt 106. The conveyor belt 106 conveys the metal sheet to one side of the stamping machine 101. Then, an industrial robot 107 grabs the metal sheet on the conveyor belt 106 and places it on the die 111. After the metal sheet is placed on the die 111, the upper workbench 102 is pushed by a driving cylinder, so that the punch 109 on the upper base plate 108 moves closer to the metal sheet. Then, under the continuous movement of the punch 109, the punch 109 and the die 111 are combined, thereby completing the stamping operation on the metal sheet and thus completing the stamping operation of the automobile body parts.

[0055] When the driving cylinder drives the upper workbench 102 to move closer to the metal plate, it will simultaneously drive the strip plate 501 to move. When the strip plate 501 moves, it will also simultaneously drive the one-way pin 807 to move, so that the one-way pin 807 and the first inclined surface 805 on the one-way plate 804 are offset. Under the interaction force between the one-way pin 807 and the first inclined surface 805 and the guiding action of the telescopic assembly, the strip plate 501 will be pushed to move closer to the charging pipe 402.

[0056] After the strip plate 501 moves close to the pressure-charging tube 402, as the strip plate 501 continues to move downward, each triangular plate 502 will be pressed against the driving rod 503 at one end of the pressure-charging tube 402, and then, under the reciprocating action of each triangular plate 502 and the driving rod 503, the pressure-charging plate 406 at one end of the driving rod 503 will be pushed to slide back and forth in the pressure-charging tube 402. In the process of the pressure-charging plate 406 sliding back and forth in the pressure-charging tube 402, when the pressure-charging plate 406 moves close to the blocking tube 601, the gas between the pressure-charging plate 406 and the second one-way valve 603 of the pressure-charging tube 402 will be pushed into the connecting tube 404 under the extrusion force and the one-way blocking action of the first one-way valve 602 and the second one-way valve 603, and finally injected from each U-shaped tube 405. When the pressure plate 406 moves away from the blocking tube 601, the external gas will be drawn from the blocking tube 601 into the pressure tube 402 under the action of air pressure and the one-way blocking action of the first and second one-way valves 602 and 603. Therefore, in the process of the strip plate 501 driving the triangular plates 502 to continuously move downward, the pressure plate 406 at one end of the driving rod 503 will be pushed to move back and forth in the pressure tube 402, thereby continuously injecting external gas into each ejection tube 201, thereby continuously increasing the gas pressure in each ejection tube 201. Moreover, since one end of each ejection rod 203 abuts against the surface of the metal plate, the gas injected into the ejection tube 201 will not flow out from the pre-loose holes 301 on the ejection rod 203.

[0057] After completing the stamping of the metal sheet, the driving cylinder is used again to drive the punch 109 to move away from the die 111. The punch 109 will release the extrusion of the molded workpiece in the die 111. At this time, the high-pressure gas in each ejector tube 201 will be blown from the pre-loosening hole 301 of the ejector rod 203 to the surface of the molded workpiece in the die 111. As a result, under the blowing action of multiple streams of high-pressure gas, the molded workpiece in the die 111 is loosened, thereby reducing the friction and holding force between the molded workpiece and the die 111. When the high-pressure gas is released, Each ejector rod 203 will move closer to the molded workpiece under the elastic action of the first spring 205, and then use the push of each ejector rod 203 to remove the molded workpiece from the die 111. Since the molded workpiece has been pushed by multiple streams of high-pressure gas in advance, the friction and clamping force between the molded workpiece and the die 111 will be reduced. Therefore, the ejection force applied by each ejector rod 203 on the molded workpiece will be reduced, thereby reducing the risk of depressions or vertices on the ejection position of the molded workpiece during the ejection process, thereby improving the stamping quality of the automobile body.

[0058] When the cylinder drives the upper workbench 102 to move upward, the one-way pin 807 on one side of the strip plate 501 will be driven to move synchronously. When the one-way pin 807 moves upward, it will come into contact with the second inclined surface 806 on the one-way plate 804. Then, under the interaction force between the one-way pin 807 and the second inclined surface 806 and the guiding action of the telescopic assembly, each triangular plate 502 on one side of the strip plate 501 will be driven to move away from the pressure tube 402. As a result, each triangular plate 502 will not come into contact with the driving rod 503 during the upward movement, thereby avoiding over-pressurization of each ejector tube 201, and thus enabling each ejector rod 203 to eject the molded workpiece from the die 111 in a timely manner, thereby ensuring the demoulding efficiency of the molded workpiece.

[0059] After the formed workpiece is removed from the die 111, the industrial robot 107 can be used to grab the formed workpiece from the die 111 and put it onto another conveyor belt 106, and then the conveyed metal sheet can be grabbed and put onto the die 111 again, thereby realizing the continuous production and processing of automobile body parts.

[0060] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0061] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A stamping device for an automobile body robot production line, comprising: A punching machine (101) and a punching die arranged on the punching machine (101), wherein the punching machine (101) is provided with an upper worktable (102) and a lower worktable (103), and the punching machine (101) is provided with a driving cylinder for driving the upper worktable (102). The punching die comprises an upper die and a lower die, and the upper die and the lower die are respectively installed on the upper worktable (102) and the lower worktable (103). The upper die is composed of an upper base plate (108) and a punch (109), and the lower die is composed of a lower base plate (110) and a die (111). Conveyor belts (106) are respectively provided on both sides of the punching machine (101), and an industrial robot (107) is provided on one side of the punching machine (101) for grabbing metal plates and punched workpieces on the conveyor belt (106). It is characterized by further comprising: An ejection mechanism disposed on the lower base plate (110) for ejecting a formed workpiece in the die (111); The ejection mechanism comprises a plurality of ejection tubes (201) fixedly connected to a side of the lower base plate (110) close to the die (111), each ejection tube (201) is slidably connected to a sliding plate (202), and each sliding plate (202) is fixedly connected to an ejection rod (203) on a side away from the lower base plate (110), the die (111) is provided with a plurality of ejection holes (204), each ejection rod (203) is slidably connected to the ejection hole (204), and each sliding plate (202) is fixedly connected to a first spring (205) on a side away from the ejection rod (203), and the other end of each first spring (205) is connected to the bottom wall of the ejection tube (201), and each ejection rod (203) is provided with a pre-loosening component for pre-loosening a molded workpiece in the die (111); The pre-loosening assembly includes a pre-loosening hole (301) provided on each ejector rod (203), one end of each pre-loosening hole (301) passes through a side of the ejector rod (203) close to the die (111), the other end of each pre-loosening hole (301) is provided with a circular cavity (302), and the inner wall of each circular cavity (302) is provided with a plurality of through holes (303) in an annular shape, and the lower workbench (103) is provided with a pressurizing assembly for pressurizing each circular cavity (302); The pressure-charging assembly comprises a first fixed plate (401) fixedly connected to a side of the lower workbench (103) close to the die (111); the first fixed plate (401) is fixedly connected to a pressure-charging tube (402); one end of the pressure-charging tube (402) close to the ejection tube (201) is connected to a connecting tube (404) via a pipe joint (403); the lower base plate (110) is provided with a plurality of U-shaped tubes (405); the two ends of each U-shaped tube (405) are respectively connected to two opposite ejection tubes (201); one end of the connecting tube (404) away from the pipe joint (403) is connected to each U-shaped tube (405); the pressure-charging tube (402) is slidably connected to a pressure-charging plate (406); and the punching machine (101) is provided with a driving assembly for driving the pressure-charging plate (406).

2. The stamping equipment for an automobile body robot production line according to claim 1, characterized in that: The ports connecting each of the U-shaped tubes (405) and each of the ejection tubes (201) are located between the sliding plate (202) and the ejection rod (203).

3. The stamping equipment for an automobile body robot production line according to claim 2, characterized in that: The driving assembly comprises a strip plate (501) slidably connected to the punching machine (101), a side of the strip plate (501) close to the pressure tube (402) is connected to a triangular plate (502) through a plurality of fixing assemblies, an end of the pressure tube (402) close to each triangular plate (502) is slidably connected to a driving rod (503), one end of the driving rod (503) is connected to the pressure plate (406), and one end of the driving rod (503) is away from the pressure plate (406). The end has rounded corners, the driving rod (503) is located on the inner side wall of the pressure tube (402) and is provided with a second spring (504), the two ends of the second spring (504) are respectively connected to the pressure plate (406) and the inner wall of the pressure tube (402), the pressure tube (402) is provided with a blocking component for one-way blocking of the pressurized gas, and the punching machine (101) is provided with a one-way component for allowing each triangular plate (502) to push the driving rod (503) in one direction.

4. The stamping equipment for an automobile body robot production line according to claim 3, characterized in that: The blocking assembly comprises a blocking tube (601) fixedly connected to the side wall of the pressure-charging tube (402); a first one-way valve (602) and a second one-way valve (603) are respectively provided in the blocking tube (601) and the pressure-charging tube (402); the first one-way valve (602) and the second one-way valve (603) are connected in a direction from the outside of the blocking tube (601) to the inside of the pressure-charging tube (402).

5. The stamping equipment for an automobile body robot production line according to claim 4, characterized in that: The fixing assembly comprises a connecting hole (701) provided on one side of the strip plate (501) close to the triangular plate (502); a connecting plate (702) is inserted into the connecting hole (701); one end of the connecting plate (702) is connected to the triangular plate (502); a T-bolt (703) is threadedly connected to the side wall of the strip plate (501); one end of the T-bolt (703) is disposed against the side wall of the connecting plate (702).

6. The stamping equipment for an automobile body robot production line according to claim 5, characterized in that: The one-way component comprises a second fixed plate (801) fixedly connected to the inner wall of a side of the punching machine (101) away from the industrial robot (107); a mounting plate (802) is fixedly connected to one side of the second fixed plate (801); a mounting hole (803) is provided on the side of the mounting plate (802) close to the strip plate (501); a one-way plate (804) is fixedly connected to the bottom wall of the mounting hole (803); a first inclined surface (805) and a second inclined surface (806) are respectively provided at both ends of the one-way plate (804); a one-way pin (807) is slidably connected between the mounting hole (803) and the one-way plate (804); one end of the one-way pin (807) is connected to the strip plate (501).

7. The stamping equipment for an automobile body robot production line according to claim 6, characterized in that: The groove width between the one-way plate (804) and the mounting hole (803) is matched with the one-way pin (807).

8. The stamping equipment for an automobile body robot production line according to claim 7, characterized in that: The punching machine (101) is provided with a telescopic assembly for telescoping each triangular plate (502), and the telescopic assembly includes a third fixed plate (901) fixedly connected to the inner wall of the punching machine (101) close to the upper workbench (102), and a plurality of telescopic tubes (902) are fixedly connected to the side of the third fixed plate (901) close to the strip plate (501), and each of the telescopic tubes (902) is slidably connected to a telescopic rod (903), and one end of each telescopic rod (903) is connected to the strip plate (501). The side wall of each telescopic tube (902) is provided with a third spring (904), and the two ends of each third spring (904) are respectively connected to the third fixed plate (901) and the strip plate (501).

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