Stamping equipment for automobile body robot production line

Abstract

The invention discloses stamping equipment for an automobile body robot production line, and relates to the technical field of automobile body stamping equipment.The stamping equipment comprises a stamping machine and a stamping die arranged on the stamping machine, and further comprises an ejection mechanism arranged on a lower bottom plate and used for ejecting out a formed workpiece in a female die; the ejection mechanism comprises a plurality of ejection pipes fixedly connected to the side, close to the female die, of the lower bottom plate, ejection rods are fixedly connected to the sides, away from the lower bottom plate, of the sliding plates, a plurality of ejection holes are formed in the female die, and the ejection rods are slidably connected to the ejection holes. The side, away from the ejector rod, of each sliding plate is fixedly connected with a first spring. According to the stamping equipment for the automobile body robot production line, through the arrangement of the ejection mechanism, under the action of the pre-loosening assembly, a formed workpiece is pushed in advance through multiple strands of high-pressure gas, and therefore the friction force and the holding force between the formed workpiece and the female die are reduced.

Description

Technical Field

[0001] The 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, thereby obtaining product parts with a certain shape, size and performance. The die used for stamping is called a stamping die. A stamping die is a special tool for batch processing of materials into the required stamping parts.

[0003] In the stamping process, the metal sheet is placed on the die, and the punch of the punch presses down the sheet 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 an ejector rod. However, after the metal sheet is stamped, the friction and holding force of the formed workpiece in the die are relatively large. When the ejector pin or the ejector rod ejects the formed workpiece from the die, it needs to overcome a large resistance in the initial state, which can easily lead to a large ejection force on the formed workpiece. Under the action of the large ejection force, it is easy to cause the ejection position of the workpiece surface to be dented or have a vertex, which causes the surface of the stamped workpiece to be damaged, 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 purpose, the present invention provides the following technical solutions: a stamping equipment for a car body robot production line, comprising a stamping machine and a stamping die arranged on the stamping machine, the stamping machine is provided with an upper worktable and a lower worktable, the stamping machine is provided with a driving cylinder for driving the upper worktable, the stamping die comprises an upper die and a lower die, the upper die and the lower die are respectively installed on the upper worktable and the lower worktable, the upper die is composed of an upper bottom plate and a punch, the lower die is composed of a lower bottom plate and a concave die, conveyor belts are respectively arranged on both sides of the stamping machine, an industrial robot for grabbing metal sheets and stamped workpieces on the conveyor belt is arranged on one side of the stamping machine, and also includes an ejection mechanism arranged on the lower bottom plate for ejecting the formed workpiece in the concave die;

[0006] The ejecting mechanism includes a plurality of ejecting tubes fixedly connected to one side of the lower bottom plate close to the female die. A sliding plate is slidably connected to each ejecting tube. One side of each sliding plate away from the lower bottom plate is fixedly connected with an ejecting rod. The female die is provided with a plurality of ejecting holes. Each ejecting rod is slidably connected to the ejecting hole. One side of each sliding plate away from the ejecting rod is fixedly connected with a first spring. The other end of each first spring is connected to the bottom wall of the ejecting tube. Each ejecting rod is provided with a pre-loosening component for pre-loosening the formed workpiece in the female die.

[0007] Preferably, the pre-loosening component includes pre-loosening holes opened in each ejecting rod. One end of each pre-loosening hole penetrates through the side of the ejecting rod close to the female die. The other end of each pre-loosening hole is provided with a circular cavity. A plurality of through holes are annularly opened on the inner wall of each circular cavity. The lower workbench is provided with a pressurizing component for pressurizing each circular cavity.

[0008] Preferably, the pressurizing component includes a first fixing plate fixedly connected to one side of the lower workbench close to the female die. The first fixing plate is fixedly connected with a pressurizing tube. One end of the pressurizing tube close to the ejecting tube is connected with a connecting tube through a pipe joint. The lower bottom plate is provided with a plurality of U-shaped tubes. Two ends of each U-shaped tube are respectively connected to two opposite ejecting tubes. One end of the connecting tube away from the pipe joint is connected to each U-shaped tube. A pressurizing plate is slidably connected to the pressurizing tube. The stamping machine is provided with a driving component for driving the pressurizing plate.

[0009] Preferably, the ports of each U-shaped tube connected to each ejecting tube are located between the sliding plate and the ejecting rod.

[0010] Preferably, the driving component includes a strip-shaped plate slidably connected to the stamping machine. One side of the strip-shaped plate close to the pressurizing tube is connected with a triangular plate through a plurality of fixing components. One end of the pressurizing tube close to each triangular plate is slidably connected with a driving rod. One end of the driving rod is connected to the pressurizing plate. The end of the driving rod away from the pressurizing plate is rounded. A second spring is sleeved on the inner side wall of the pressurizing tube where the driving rod is located. Two ends of the second spring are respectively connected to the pressurizing plate and the inner wall of the pressurizing tube. The pressurizing tube is provided with a blocking component for unidirectionally blocking the pressurized gas. The stamping machine is provided with a unidirectional component for enabling each triangular plate to unidirectionally push the driving rod.

[0011] Preferably, the blocking component includes a blocking tube fixedly connected to the side wall of the pressurizing tube. A first one-way valve and a second one-way valve are respectively arranged in the blocking tube and the pressurizing tube. The conduction directions of the first one-way valve and the second one-way valve are from the outside of the blocking tube to the inside of the pressurizing tube.

[0012] Preferably, the fixing component includes a connection hole formed on the side of the strip-shaped plate close to the triangular plate. A connection plate is inserted into the connection hole. One end of the connection plate is connected to the triangular plate. A T-shaped bolt is threadedly connected to the side wall of the strip-shaped plate, and one end of the T-shaped bolt abuts against the side wall of the connection plate.

[0013] Preferably, the one-way component includes a second fixing plate fixedly connected to the inner wall of the punching machine on the side away from the industrial robot. One side of the second fixing plate is fixedly connected with a mounting plate. An installation hole is formed on the side of the mounting plate close to the strip-shaped plate. A one-way plate is fixedly connected to the bottom wall of the installation hole. First and second inclined surfaces are respectively formed at both ends of the one-way plate. A one-way pin is slidably connected between the installation hole and the one-way plate, and one end of the one-way pin is connected to the strip-shaped plate.

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

[0015] Preferably, the punching machine is provided with a telescopic component for telescoping each triangular plate. The telescopic component includes a third fixing 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 fixing plate close to the strip-shaped plate. Each telescopic tube is slidably connected with a telescopic rod. One end of each telescopic rod is connected to the strip-shaped 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 fixing plate and the strip-shaped plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] The punching equipment for the automobile body robot production line of the present invention, through the setting of the ejection mechanism, under the action of the pre-loosening component, with the cooperation of the pressurizing component and the driving component, the pre-pushing of the formed workpiece under the action of multiple high-pressure gases will reduce the friction and clamping force with the female die, and then the ejection force applied by each ejector rod to the formed workpiece will be reduced, thereby reducing the risk of dents or vertices at the ejection positions on the surface of the formed workpiece during the blanking process, and thus improving the punching quality of the automobile body. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

[0021] Figure 4Schematic diagram of the position structure of the driving component of the present invention;

[0022] Figure 5 Schematic diagram of the position structure of the one-way component of the present invention;

[0023] Figure 6 Schematic diagram of the structure of the fixing component of the present invention;

[0024] Figure 7 Schematic diagram of the structure 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 is Figure 4 Enlarged view at position A in

[0027] Figure 10 is Figure 8 Enlarged view at position B in

[0028] Figure 11 is Figure 9 Enlarged view at position C in

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

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Example 1

[0032] Please refer to Figures 1 - 11 , a stamping device for an automobile body robot production line shown in the figure, including a stamping machine 101 and a stamping die arranged on the stamping machine 101. The stamping machine 101 is provided with an upper workbench 102 and a lower workbench 103. The stamping machine 101 is provided with a driving cylinder for driving the upper workbench 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 workbench 102 and the lower workbench 103. The upper die is composed of an upper bottom plate 108 and a punch 109, and the lower die is composed of a lower bottom plate 110 and a die cavity 111. Conveyor belts 106 are respectively arranged on both sides of the stamping machine 101. An industrial robot 107 for grasping metal sheets and stamped workpieces on the conveyor belt 106 is arranged on one side of the stamping machine 101. It further includes an ejection mechanism arranged on the lower bottom plate 110 for ejecting the formed workpieces in the die cavity 111;

[0033] The ejection mechanism includes a plurality of ejection tubes 201 fixedly connected to one side of the lower bottom plate 110 close to the die cavity 111. A sliding plate 202 is slidably connected to each ejection tube 201. One side of each sliding plate 202 away from the lower bottom plate 110 is fixedly connected with an ejection rod 203. The die cavity 111 is provided with a plurality of ejection holes 204. Each ejection rod 203 is slidably connected in the ejection hole 204. One side of each sliding plate 202 away from the ejection rod 203 is fixedly connected with a first spring 205. 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 formed workpieces in the die cavity 111;

[0034] It should be noted here that: through the setting of the ejection mechanism, under the action of the pre-loosening component, by the cooperation of the pressurizing component and the driving component, with the pre-pushing of the formed workpieces by multiple strands of high-pressure gas, the frictional force and clamping force between the formed workpieces and the die cavity 111 will be reduced. Furthermore, the ejection force exerted by each ejection rod 203 on the formed workpieces will be reduced, thereby reducing the risk of dents or vertices appearing at the ejection positions on the surface of the formed workpieces during the blanking process, thus improving the stamping quality of the automobile body.

[0035] Please refer to Figures 2 - 11 , the pre-loosening component shown in the figure includes pre-loosening holes 301 opened in each ejection rod 203. One end of each pre-loosening hole 301 penetrates through one side of the ejection rod 203 close to the die cavity 111. The other end of each pre-loosening hole 301 is provided with a circular cavity 302. A plurality of through holes 303 are annularly opened on the inner wall of each circular cavity 302. The lower workbench 103 is provided with a pressurizing component for pressurizing each circular cavity 302;

[0036] It should be noted here that: through the setting of the pre-loosening component, by using multiple strands of high-pressure gas to pre-push the formed workpiece, the frictional force and clamping force between the formed workpiece and the female die 111 will be reduced.

[0037] Please refer to Figures 2 - 11 , in the figure, the pressure charging component includes a first fixed plate 401 fixedly connected to the side of the lower workbench 103 close to the female die 111. The first fixed plate 401 is fixedly connected with a pressure charging pipe 402. One end of the pressure charging pipe 402 close to the ejector pipe 201 is connected with a connecting pipe 404 through a pipe joint 403. The lower bottom plate 110 is provided with a plurality of U-shaped pipes 405. Both ends of each U-shaped pipe 405 are respectively connected with two opposite ejector pipes 201. One end of the connecting pipe 404 away from the pipe joint 403 is connected with each U-shaped pipe 405. A pressure charging plate 406 is slidably connected to the pressure charging pipe 402. The stamping machine 101 is provided with a driving component for driving the pressure charging plate 406;

[0038] It should be noted here that: through the setting of the pressure charging component, it is used to fill high-pressure gas into each ejector pipe 201, so as to realize the non-destructive pre-ejection of the formed workpiece by using the high-pressure gas to push the formed workpiece.

[0039] Please refer to Figure 10 , the ports of each U-shaped pipe 405 and each ejector pipe 201 shown in the figure are located between the sliding plate 202 and the ejector rod 203;

[0040] It should be noted here that: by setting the ports of each U-shaped pipe 405 and each ejector pipe 201 between the sliding plate 202 and the ejector rod 203, the gas injected into the ejector pipe 201 can finally flow from each through hole 303 into the pre-loosening hole 301.

[0041] Please refer to Figure 4 , Figure 9 and Figure 11 , in the figure, the driving component includes a strip plate 501 slidably connected to the stamping machine 101. One side of the strip plate 501 close to the pressure charging pipe 402 is connected with a triangular plate 502 through a plurality of fixing components. One end of the pressure charging pipe 402 close to each triangular plate 502 is slidably connected with a driving rod 503. One end of the driving rod 503 is connected with the pressure charging plate 406. The end of the driving rod 503 away from the pressure charging plate 406 is rounded. A second spring 504 is sleeved on the inner side wall of the driving rod 503 inside the pressure charging pipe 402. Both ends of the second spring 504 are respectively connected with the pressure charging plate 406 and the inner wall of the pressure charging pipe 402. The pressure charging pipe 402 is provided with a blocking component for unidirectionally blocking the pressure charging gas. The stamping machine 101 is provided with a unidirectional component for enabling each triangular plate 502 to unidirectionally push the driving rod 503;

[0042] It should be noted here that: through the setting of the driving component, by using the movement of the upper workbench 102, the pressurization operation of each ejector pipe 201 is realized, thus saving energy expenditure and reducing the stripping cost of the formed workpiece.

[0043] Please refer to Figure 4 、 Figure 9 and Figure 11 , in the figure, the plugging component includes a plugging pipe 601 fixedly connected to the side wall of the pressurizing pipe 402. A first one-way valve 602 and a second one-way valve 603 are respectively arranged in the plugging pipe 601 and the pressurizing pipe 402. The conduction directions of the first one-way valve 602 and the second one-way valve 603 are from the outside of the plugging pipe 601 to the inside of the pressurizing pipe 402;

[0044] It should be noted here that: through the setting of the plugging component, it provides a one-way flow function for the reciprocating injection of external gas into the pressurizing pipe 402, and then realizes the continuity of gas injection into the pressurizing pipe 402.

[0045] Please refer to Figure 6 , in the figure, the fixing component includes a connection hole 701 opened on the side of the strip plate 501 close to the triangular plate 502. A connecting plate 702 is inserted into the connection hole 701. One end of the connecting plate 702 is connected to the triangular plate 502. A T-shaped bolt 703 is threadedly connected to the side wall of the strip plate 501. One end of the T-shaped bolt 703 abuts against the side wall of the connecting plate 702;

[0046] It should be noted here that: through the setting of the fixing component, it is used to install each triangular plate 502, and then it is convenient to control the pressurization effect on the ejector pipe 201.

[0047] Please refer to Figure 4 and Figure 5 , in the figure, the one-way component includes a second fixing plate 801 fixedly connected to the inner wall of the punching machine 101 away from the industrial robot 107. One side of the second fixing plate 801 is fixedly connected with a mounting plate 802. A mounting hole 803 is opened 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. First inclined surfaces 805 and second inclined surfaces 806 are respectively opened 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;

[0048] It should be noted here that: through the setting of the one-way component, when each triangular plate 502 moves upward, it will not abut against the driving rod 503, thus avoiding over-pressurizing each ejector pipe 201, and then enabling each ejector rod 203 to timely eject the formed workpiece from the female mold 111, thus ensuring the demolding efficiency of the formed workpiece.

[0049] Please refer to Figure 5 In the figure, the groove width between the one-way plate 804 and the mounting hole 803 is set to match the one-way pin 807;

[0050] It should be noted here that by setting the groove width between the one-way plate 804 and the mounting hole 803 to match 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] Please refer to Figure 9 In the figure, the stamping machine 101 is provided with a telescopic assembly for telescoping each triangular plate 502. The telescopic assembly includes a third fixing plate 901 fixedly connected to the inner wall of the stamping machine 101 close to the upper workbench 102. A plurality of telescopic tubes 902 are fixedly connected to one side of the third fixing plate 901 close to the strip plate 501. Each telescopic tube 902 is slidably connected with a telescopic rod 903. One end of each telescopic rod 903 is connected to the strip plate 501. A third spring 904 is sleeved on the side wall of each telescopic tube 902. Two ends of each third spring 904 are respectively connected to the third fixing plate 901 and the strip plate 501;

[0052] It should be noted here that through the setting of the telescopic assembly, it is used to provide guiding and resetting effects for the movement of the strip plate 501.

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

[0054] When performing stamping operations on the automotive body, first place the metal sheet on the conveyor belt 106. Utilize the conveying function of the conveyor belt 106 to convey the metal sheet to one side of the stamping machine 101. Then use the industrial robot 107 to grab the metal sheet on the conveyor belt 106 onto the female die 111. After placing the metal sheet on the female die 111, use the driving cylinder to push the upper workbench 102, so that the punch 109 on the upper bottom plate 108 moves close to the metal sheet. Then, under the continuous movement of the punch 109, the punch 109 and the female die 111 are combined, thereby realizing the stamping operation on the metal sheet, and thus realizing the stamping operation of automotive body parts;

[0055] And during the process of the driving cylinder driving the upper workbench 102 to move close to the metal sheet, the strip plate 501 will be driven to move synchronously. During the movement of the strip plate 501, the one-way pin 807 will be driven to move synchronously, so that the one-way pin 807 abuts against the first inclined surface 805 on the one-way plate 804. Thus, under the mutual acting force between the one-way pin 807 and the first inclined surface 805 and the guiding effect of the telescopic assembly, the strip plate 501 will be pushed to move close to the pressure filling tube 402;

[0056] After the strip plate 501 moves closer to the pressure charging pipe 402, as the strip plate 501 continues to move downward, each triangular plate 502 will abut against the driving rod 503 at one end of the pressure charging pipe 402. Then, under the reciprocating abutting action between each triangular plate 502 and the driving rod 503, the pressure charging plate 406 at one end of the driving rod 503 is pushed to slide reciprocally in the pressure charging pipe 402. During the process of the pressure charging plate 406 sliding reciprocally in the pressure charging pipe 402, when the pressure charging plate 406 moves closer to the blocking pipe 601, under the extrusion force and the one-way blocking action of the first one-way valve 602 and the second one-way valve 603, the gas in the pressure charging pipe 402 located between the pressure charging plate 406 and the second one-way valve 603 is pushed into the connecting pipe 404, and finally injected into each ejector pipe 201 from each U-shaped pipe 405. When the pressure charging plate 406 moves away from the blocking pipe 601, under the air pressure action and the one-way blocking action of the first one-way valve 602 and the second one-way valve 603, the external gas is drawn into the pressure charging pipe 402 from the blocking pipe 601. Therefore, during the process of the strip plate 501 driving each triangular plate 502 to continuously move downward, the pressure charging plate 406 at one end of the driving rod 503 is pushed to move reciprocally in the pressure charging pipe 402, and then the external gas is continuously injected into each ejector pipe 201, so that the gas pressure in each ejector pipe 201 continuously increases. And since one end of each ejector rod 203 abuts against the surface of the metal plate, the gas injected into the ejector pipe 201 will not flow out from the pre-loosening hole 301 on the ejector rod 203;

[0057] After the stamping of the metal plate is completed, the driving cylinder is used again to drive the punch 109 to move away from the die 111. The punch 109 will relieve the extrusion of the formed workpiece in the die 111. At this time, the high-pressure gas in each ejector pipe 201 will blow from the pre-loosening hole 301 of the ejector rod 203 to the surface of the formed workpiece in the die 111. Thus, under the blowing action of multiple high-pressure gas jets, the formed workpiece becomes loose in the die 111, and then the frictional force and the clamping force between the formed workpiece and the die 111 are reduced. When the high-pressure gas is released, each ejector rod 203 will move closer to the formed workpiece under the elastic action of the first spring 205. Then, by the pushing of each ejector rod 203, the formed workpiece is moved out of the die 111. And since the formed workpiece has been pushed by multiple high-pressure gas jets in advance, the frictional force and the clamping force with the die 111 will be reduced. Therefore, the ejecting force exerted by each ejector rod 203 on the formed workpiece will be reduced, and then the risk of dents or vertices at the ejecting position on the surface of the formed workpiece during the blanking process is reduced, thereby improving the stamping quality of the automobile body;

[0058] And during the process of the driving cylinder driving the upper workbench 102 to move upward, it will synchronously drive the one-way pin 807 on one side of the strip plate 501. During the upward movement of the one-way pin 807, it will abut against the second inclined surface 806 on the one-way plate 804. Then, under the mutual acting force between the one-way pin 807 and the second inclined surface 806 and the guiding action of the telescopic assembly, it will drive each triangular plate 502 on one side of the strip plate 501 to move away from the pressure charging pipe 402. Thus, during the upward movement of each triangular plate 502, it will not abut against the driving rod 503, so as to avoid overcharging each ejector pipe 201. Furthermore, each ejector rod 203 can timely eject the formed workpiece from the female die 111, thereby ensuring the demolding efficiency of the formed workpiece.

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

[0060] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or sequence between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0061] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stamping device for a car 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), 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, 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 bottom plate (108) and a punch (109), the lower die is composed of a lower bottom plate (110) and a concave die (111), conveyor belts (106) are respectively arranged on both sides of the punching machine (101), and an industrial robot (107) for grabbing metal plates and stamped workpieces on the conveyor belt (106) is arranged on one side of the punching machine (101); It is characterized by further comprising: An ejection mechanism disposed on the lower bottom plate (110) for ejecting a formed workpiece in the concave 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 of the ejection tubes (201) is slidably connected to a sliding plate (202); a side of each of the sliding plates (202) away from the lower base plate (110) is fixedly connected to an ejection rod (203); the die (111) is provided with a plurality of ejection holes (204); each of the ejection rods (203) is slidably connected to the ejection holes (204); a side of each of the sliding plates (202) away from the ejection rod (203) is fixedly connected to a first spring (205); the other end of each of the first springs (205) is connected to the bottom wall of the ejection tube (201); and each of the ejection rods (203) is provided with a pre-loosening component for pre-loosening a molded workpiece in the die (111).

2. The stamping equipment for automobile body robot production line according to claim 1, characterized in that: The pre-loosening assembly comprises a pre-loosening hole (301) formed 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), 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).

3. The stamping equipment for automobile body robot production line according to claim 2, characterized in that: The pressure charging component 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 of the U-shaped tubes (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 of the U-shaped tubes (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 component for driving the pressure charging plate (406).

4. The stamping equipment for automobile body robot production line according to claim 3 is 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).

5. The stamping equipment for automobile body robot production line according to claim 4, 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 charging tube (402) is connected to a triangular plate (502) via a plurality of fixing assemblies; an end of the pressure charging 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 charging plate (406); and one end of the driving rod (503) is away from the pressure charging plate (406). The end has rounded corners, the driving rod (503) is located on the inner side wall of the pressure-charging tube (402) and is sleeved with a second spring (504), the two ends of the second spring (504) are respectively connected to the pressure-charging plate (406) and the inner wall of the pressure-charging tube (402), the pressure-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 enabling each triangular plate (502) to push the driving rod (503) in one direction.

6. The stamping equipment for automobile body robot production line according to claim 5, characterized in that: The blocking assembly comprises a blocking tube (601) fixedly connected to the side wall of the pressure-charging tube (402), wherein the blocking tube (601) and the pressure-charging tube (402) are respectively provided with a first one-way valve (602) and a second one-way valve (603), and the conduction direction of the first one-way valve (602) and the second one-way valve (603) is from the outside of the blocking tube (601) to the inside of the pressure-charging tube (402).

7. The stamping equipment for automobile body robot production line according to claim 6, characterized in that: The fixing assembly comprises a connecting hole (701) opened on a 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), and one end of the T-bolt (703) is arranged to abut against the side wall of the connecting plate (702).

8. The stamping equipment for automobile body robot production line according to claim 7, characterized in that: The one-way component comprises a second fixing 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 fixing plate (801); a mounting hole (803) is provided on a 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 two 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).

9. The stamping equipment for automobile body robot production line according to claim 8, 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).

10. The stamping equipment for automobile body robot production line according to claim 9, characterized in that: The punching machine (101) is provided with a telescopic assembly for telescoping each triangular plate (502), the telescopic assembly comprising a third fixed plate (901) fixedly connected to the inner wall of the punching machine (101) close to the upper workbench (102), a plurality of telescopic tubes (902) are fixedly connected to the side of the third fixed plate (901) close to the strip plate (501), each of the telescopic tubes (902) is slidably connected to a telescopic rod (903), one end of each of the telescopic rods (903) is connected to the strip plate (501), a third spring (904) is sleeved on the side wall of each of the telescopic tubes (902), and both ends of each of the third springs (904) are respectively connected to the third fixed plate (901) and the strip plate (501).

Images