A multi-station stamping device for automobile sealing cover

Abstract

The invention discloses a multi-station stamping device for an automobile sealing cover, which belongs to the technical field of stamping equipment, and comprises a feeding mechanism, a first stamping mechanism, a second stamping mechanism, and a third stamping mechanism, wherein the third stamping mechanism comprises a supporting platform; a second lower die seat; a second guide column; a second upper die seat; a second bearing plate; a second knife seat; a trimming knife, wherein the trimming knife is mounted on the second knife seat, a hollow chamber is arranged inside the trimming knife, a third spring is mounted in the hollow chamber, and a positioning rod is mounted on the other end of the third spring; a second die core; a second stamping hole; an electromagnet is mounted at the bottom of the hollow chamber, and one end of the positioning rod is made of a magnetic material; the multi-station stamping device for an automobile sealing cover of the invention can perform stamping, shaping, punching and other processes on the sealing cover by arranging multiple sets of stamping mechanisms, so that the sealing cover can be formed in one time, thereby realizing automatic stamping and reducing the burden on the staff.

Description

Technical Field

[0001] The invention relates to the technical field of stamping equipment, in particular to a multi-station stamping device for an automobile sealing cover. Background Art

[0002] At present, the water tank, oil tank or hydraulic tank of the general configuration of the car all need to be sealed with a sealing cover. The sealing function is mainly achieved by embedding a circle of sealing gaskets in the sealing cover, and the sealing gaskets are in contact with the box body to seal the opening of the box body.

[0003] Automobile sealing covers are usually stamped from iron sheets, and generally go through stamping processes such as material preparation, stamping, shaping, and punching, and then go through subsequent fine processing to complete the production. In the production process of automobile sealing covers, there are many stamping processes, and generally multi-station stamping equipment is used to complete it;

[0004] For example, the invention patent with the announcement number CN111589937B specifically discloses a multi-station stamping device for automobile sealing covers. The patent can realize multi-station stamping of sealing covers by providing a stamping assembly, thereby improving the processing efficiency of sealing covers. At the same time, the setting of the clamping mechanism realizes the clamping limit of sealing covers of different models, thereby preventing the sealing covers from falling off;

[0005] In the process of implementing the above patent, although multi-station stamping of the sealing cover is realized, in the multi-station stamping process, the same positioning reference is generally used for positioning to ensure the uniformity of the subsequent finishing reference. However, after multiple positioning, the same positioning reference may be deformed due to multiple pressing and holding, thereby causing misalignment of the subsequent stamping process or the finishing reference, and further causing a large number of scrapped finished products of the sealing cover. Therefore, it is necessary to provide a multi-station stamping device for automobile sealing covers to solve the above problems.

[0006] It should be noted that the above information disclosed in this background technology section is only for understanding the background technology of the present inventive concept, and therefore, it may contain information that does not constitute the prior art. Summary of the invention

[0007] Based on the above problems existing in the prior art, the problem to be solved by the present invention is: to provide a multi-station stamping device for an automobile sealing cover, which can avoid deformation of the positioning reference during multiple stamping processes of the sealing cover.

[0008] The technical solution adopted by the present invention to solve its technical problems is: a multi-station stamping device for automobile sealing covers, comprising a feeding mechanism, the feeding mechanism is used for conveying and shaping the automobile sealing covers; a first stamping mechanism, the first stamping mechanism is used for stamping the automobile sealing covers; a second stamping mechanism, the second stamping mechanism is used for shaping the automobile sealing covers; a third stamping mechanism, the third stamping mechanism comprises a support platform; a second lower die seat, the second lower die seat is mounted on the support platform; a second guide column, the second guide column is mounted on the second lower die seat; a second upper die seat, the second upper die seat slides Set on the second guide column; a second supporting plate, the second supporting plate is installed on the second upper die seat; a second knife seat, the second knife seat is installed on the second supporting plate; a trimming knife, the trimming knife is installed on the second knife seat, a hollow chamber is arranged inside the trimming knife, a third spring is installed in the hollow chamber, and a positioning rod is installed at the other end of the third spring; a second mold core, the second mold core is installed on the second lower die seat; a second punching hole, the second punching hole is arranged on the second mold core; an electromagnet is installed at the bottom of the hollow chamber of the trimming knife, and the end of the positioning rod close to the electromagnet is made of magnetic material.

[0009] Furthermore, a second pressure plate is provided at the bottom of the second supporting plate, a second spring is installed between the second pressure plate and the second supporting plate, and a second holding hole is opened on the second pressure plate; a slide seat is installed on the second tool holder, and a guide rod is installed on the second pressure plate, and the guide rod is suitable for cooperating with the slide seat to control the position of the positioning rod.

[0010] Furthermore, the slide seat includes a vertical plate installed on the second tool seat, the vertical plate has a vertically arranged first slide, and the first slide passes through the bottom position of the vertical plate; the guide rod includes a seat body installed on the second pressure plate, the seat body is hinged with a rod body, and a sphere is arranged at a position of the rod body away from the seat body, and the sphere is an elastic structure.

[0011] Furthermore, the end of the first slide is connected to a second slide inclined upward, the bottom of the second slide is lower than the bottom of the first slide, a stationary point is provided at the connection between the first slide and the second slide, an electric shock switch is provided at the stationary point, and the electric shock switch is electrically connected to the electromagnet.

[0012] Furthermore, a third slide is provided at one end of the second slide away from the first slide, and the third slide is inclined upward, and the bottom surface of the third slide gradually increases in height along the position away from the second slide; the third slide is connected to a fourth slide at a position away from the second slide, and the fourth slide is connected to the first slide at a position away from the third slide, and a step is formed at the connection between the fourth slide and the first slide.

[0013] Furthermore, a notch is provided at the bottom of the trimming knife.

[0014] Furthermore, two sets of second guide rails are provided on both sides of the upper end of the second lower mold base, and the upper ends of the two sets of second guide rails are higher than the upper end of the second mold core.

[0015] Furthermore, the first stamping mechanism includes a first lower die seat installed on the support platform, first guide columns are installed around the first lower die seat, a first upper die seat is slidably arranged on the first guide columns, a first cylinder is arranged at the upper end of the first upper die seat, and the output end of the first cylinder is installed with the first upper die seat; a first bearing plate is installed at the bottom of the first upper die seat, a first knife seat is installed at the bottom of the first bearing plate, and a forming knife is installed at the bottom of the first knife seat; a first mold core is installed at the upper end of the first lower die seat, and two groups of first guide rails are arranged on both sides of the first mold core at the upper end of the first lower die seat, the upper end positions of the two groups of the first guide rails are higher than the upper end position of the first mold core, and a first gap is formed between the two groups of the first guide rails.

[0016] Furthermore, a first pressure plate is provided at the bottom of the first supporting plate, a first spring is installed between the first pressure plate and the first supporting plate, a first holding hole is opened on the first pressure plate, and a first holding portion is provided at the outer circle position of the first holding hole at the lower end of the first pressure plate.

[0017] Furthermore, a first punching hole is provided on the first mold core.

[0018] The multi-station punching device for an automobile sealing cover provided by the present invention has the following beneficial effects:

[0019] 1. By providing multiple sets of stamping mechanisms, the sealing cover can be stamped, shaped, punched and other processes, so that the sealing cover can be formed in one go, thereby realizing automated stamping and reducing the burden on the staff. 2. By providing a slide and a guide rod in the punching process, and through the cooperation of the slide and the guide rod, it can not only be positioned according to the shape of the stamping in the previous process, but also during the punching process, the positioning piece can be separated from the shape of the stamping in the previous process to prevent over-pressure deformation. 3. By providing a feeding mechanism, the sealing cover can be fed in an orderly manner, and during the feeding process of the sealing cover, it can be shaped to ensure the smooth progress of subsequent stamping work. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 It is a schematic diagram of the overall structure of the automobile sealing cover of the present invention;

[0022] Figure 2 It is an overall schematic diagram of a multi-station punching device for an automobile sealing cover in the present invention;

[0023] Figure 3 for Figure 2 Schematic diagram of the overall structure of the feeding mechanism;

[0024] Figure 4 for Figure 2 Schematic diagram of the overall structure of the middle punching mechanism;

[0025] Figure 5 for Figure 4 The overall structural diagram of the first punching mechanism;

[0026] Figure 6 for Figure 5 Schematic diagram of the local structure at A in the middle;

[0027] Figure 7 for Figure 4 The overall structural diagram of the third punching mechanism;

[0028] Figure 8 for Figure 7 Schematic diagram of the local structure at B in the middle;

[0029] Fig. 9 for Figure 7 Schematic diagram of the second knife holder from another perspective;

[0030] Fig.10 for Figure 7 Schematic diagram of the local structure at C in the middle;

[0031] Fig.11 for Fig.10 Schematic diagram of the structure of the middle slide;

[0032] Fig.12 for Fig.10 Schematic diagram of the structure of the middle guide rod;

[0033] Among them, the reference numerals in the figure are:

[0034] 1. Sealing cover; 11. Boss; 12. Thread; 13. Reserved rib;

[0035] 2. Feeding mechanism; 21. Reel assembly; 211. First base; 212. Material roll; 22. Limiting assembly; 221. Side arm; 222. Clamping rod; 23. Pressing assembly; 231. Rotating arm; 232. Pressing wheel; 24. Shaping assembly; 241. Second base; 242. Conveying platform; 25. Guide assembly; 251. Arc plate;

[0036] 3. First punching mechanism; 31. First cylinder; 32. First upper die seat; 33. First bearing plate; 34. First pressing plate; 35. First lower die seat; 36. First guide column; 37. First knife seat; 38. Forming knife; 39. First spring; 310. First holding part; 311. First guide rail; 312. First die core; 313. First punching hole;

[0037] 4. The second punching mechanism;

[0038] 5. The third punching mechanism; 51. The second cylinder; 52. The second upper die seat; 53. The second bearing plate; 54. The second pressing plate; 55. The second lower die seat; 56. The second guide column; 57. The second knife seat; 58. The trimming knife; 581. The notch; 59. The second spring; 510. The second holding portion; 511. The second guide rail; 512. The second mold core; 513. The second punching hole; 514. The electromagnet; 515. The third spring; 516. The positioning rod;

[0039] 6. Sheet;

[0040] 7. Support table;

[0041] 8. guide rod; 81. seat body; 82. rod body; 83. ball body;

[0042] 9. Slide seat; 91. Vertical board; 92. First slide; 93. Second slide; 94. Third slide; 95. Fourth slide; 96. Stop point. DETAILED DESCRIPTION

[0043] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0044] Embodiment 1

[0045] This embodiment describes the basic structure and principle of the multi-station stamping device for automobile sealing cover, specifically:

[0046] like Figure 2 As shown, the present invention provides a multi-station stamping device for automobile sealing covers, comprising a feeding mechanism 2, the feeding mechanism 2 is used to convey and shape a sheet 6, and a plurality of stamping mechanisms are arranged on one side of the feeding mechanism 2, the plurality of stamping mechanisms are used to perform multiple stamping on the sheet 6 according to the process, so as to stamp out a plurality of sealing covers 1 from the sheet 6;

[0047] like Figure 1 As shown, the figure shows the structure of the sealing cover 1, which includes a boss 11 formed by stamping, and a thread 12 formed by fine processing is arranged inside the boss 11, so that during the use of the sealing cover 1, it can be installed on the automobile box body through the thread 12, and a plurality of groups of reserved ribs 13 are arranged on the outer ring of the sealing cover 1, and the reserved ribs 13 are used to connect the sealing cover 1 with the whole of the sheet 6, so that after the sealing cover 1 is stamped and formed, it is still connected to the sheet 6 and is transmitted to the next process together with the sheet 6, and then the reserved ribs 13 are cut by the staff to separate the sealing cover 1 from the sheet 6;

[0048] In order to convey and shape the sheet 6, as Figure 2-Figure 3 As shown, the feeding mechanism 2 includes a reel assembly 21, which is used for unwinding the material sheet 6. The reel assembly 21 includes a first base 211 arranged on the ground, and a material shaft (not shown in the figure) is installed on the bearing of the first base 211. A material roll 212 is detachably installed on the material shaft, and the material roll 212 is formed by winding the material sheet 6. At the same time, a driving mechanism (not shown in the figure) is arranged on the first base 211, and the output end of the driving mechanism is fixedly installed with the material shaft, so that under the action of the driving mechanism, the material shaft can drive the material roll 212 to rotate, and then drive the unwinding of the material roll 212. In this embodiment, the driving mechanism is a pulley assembly driven by a motor. This structure is a conventional prior art and will not be described in detail here.

[0049] At the same time, a limiting assembly 22 is provided on both sides of the material roll 212, and the limiting assembly 22 is used to limit the position of both sides of the material roll 212. The limiting assembly 22 includes a side arm 221 fixedly mounted on the first base 211, and two groups of clamping rods 222 are provided on the side arm 221. The two groups of clamping rods 222 can approach or move away from each other, and when approaching the material roll 212, the two sides of the material roll 212 are limited to prevent the material roll 212 from running off. In this embodiment, the movement of the two groups of clamping rods 222 can be controlled by two separate groups of cylinders, or by other methods, which will not be limited too much here;

[0050] A pressing assembly 23 is provided at one end of the reel assembly 21, and the pressing assembly 23 is used to press the upper end of the material roll 212 to prevent the material roll 212 from bulging when unwinding. The pressing assembly 23 includes a rotating arm 231 hinged on the first base 211, and a pressing wheel 232 is rotatably provided at the end of the rotating arm 231. The pressing wheel 232 is suitable for contacting the upper end of the material roll 212. In this embodiment, the rotating movement of the rotating arm 231 can be driven by a cylinder so that the pressing wheel 232 can be close to or away from the material roll 212. Of course, a gas spring can also be connected between the first base 211 and the rotating arm 231, so that the pressing wheel 232 is always pressed on the material roll 212 under the action of the gas spring, and adaptive adjustment is achieved;

[0051] Continue to refer Figure 2 and Figure 3 , a shaping assembly 24 is provided at the other end of the reel assembly 21, and the shaping assembly 24 is used to flatten the sheet 6. The shaping assembly 24 includes a second base 241 provided on the ground, and a conveying platform 242 is provided inside the second base 241. A transmission roller (not shown in the figure) is provided on the conveying platform 242 along the direction of conveying the sheet 6. At the same time, a plurality of groups of pressure rollers (not shown in the figure) are provided inside the second base 241 at the upper end of the transmission roller. The pressure rollers and the transmission rollers correspond to each other and form a channel therebetween. The channel is for the sheet 6 to pass through, and when the sheet 6 passes through the channel, the sheet 6 is shaped by the action of the pressure rollers and the transmission rollers. At the same time, the sheet 6 can be driven to be continuously transmitted by the friction of the pressure rollers and the transmission rollers on the sheet 6. In this embodiment, the transmission roller can be driven by a pulley structure driven by a motor. This structure is a prior art and will not be described in detail here.

[0052] Meanwhile, a guide assembly 25 is provided between the reel assembly 21 and the shaping assembly 24. The guide assembly 25 is used to guide the sheet 6 so that the sheet 6 can smoothly enter the channel of the shaping assembly 24. The guide assembly 25 includes an arc-shaped plate 251 fixedly connected to the second base 241. A plurality of groups of rollers (not shown in the figure) are rotatably provided on the arc-shaped plate 251, so that the sheet 6 can smoothly enter the channel through the guidance of the plurality of groups of rollers.

[0053] like Figure 2 and Figure 4 As shown, the stamping mechanisms are the first stamping mechanism 3, the second stamping mechanism 4 and the third stamping mechanism 5 in sequence according to the transmission direction of the material sheet 6, wherein the first stamping mechanism 3 is used to stamp the boss 11 of the sealing cover 1, the second stamping mechanism 4 is used to perform a shaping operation on the boss 11 so that the boss 11 meets the use requirements, and the third stamping mechanism 5 is used to separate the sealing cover 1 from the material sheet 6, leaving only the reserved rib 13, so as to facilitate subsequent separation and finishing operations. In this embodiment, the first stamping mechanism 3, the second stamping mechanism 4 and the third stamping mechanism 5 are each provided with two groups to improve the efficiency of stamping the sealing cover 1;

[0054] In summary, when the sheet 6 needs to be punched, the roll 212 is first placed on the shaft, and the roll 212 is kept in a proper position by the limiting assembly 22 and the holding assembly 23, and then the shaft is driven to rotate to unwind the roll 212.

[0055] At the same time, the pressing roller and the conveying roller on the shaping assembly 24 continuously shape the sheet 6 and push the sheet 6 for conveyance;

[0056] When the sheet 6 reaches the first punching mechanism 3, the boss 11 is punched out on the sheet 6 by the first punching mechanism 3. When the sheet 6 reaches the second punching mechanism 4, the boss 11 is shaped by the second punching mechanism 4. When the sheet 6 reaches the third punching mechanism 5, the sheet 6 is punched and cut to facilitate separation of the sealing cover 1 from the sheet 6.

[0057] Embodiment 2

[0058] This embodiment describes the structure and basic principle of the first punching mechanism 3 and the second punching mechanism 4, specifically:

[0059] like Figure 4-Figure 6 As shown, a support platform 7 is provided on one side of the feeding mechanism 2, and the support platform 7 is provided on the ground, mainly to support the stamping mechanism so that the sheet 6 remains stable during stamping;

[0060] The first punching mechanism 3 includes a first lower die base 35 fixedly mounted on the support platform 7, a first guide column 36 fixedly mounted around the first lower die base 35, a first upper die base 32 slidably mounted on the first guide column 36, and a first cylinder 31 is disposed at the upper end of the first upper die base 32, an output end of the first cylinder 31 is fixedly mounted on the first upper die base 32, so that the first upper die base 32 can be close to or away from the first lower die base 35 under the drive of the first cylinder 31;

[0061] Meanwhile, a first carrier plate 33 is fixedly mounted on the bottom of the first upper die seat 32, and a first knife seat 37 is fixedly mounted on the bottom of the first carrier plate 33, and a forming knife 38 is fixedly mounted on the bottom of the first knife seat 37;

[0062] A first mold core 312 is fixedly installed at the upper end of the first lower mold base 35, and two sets of first guide rails 311 are fixedly installed at the upper end of the first lower mold base 35 on both sides of the first mold core 312, and the upper ends of the two sets of first guide rails 311 are higher than the upper end of the first mold core 312, so that a first gap for the material sheet 6 to pass through is formed between the two sets of first guide rails 311, and the distance between the two sets of first guide rails 311 is adapted to the width of the material sheet 6, so that the position of the two sides of the material sheet 6 can be limited;

[0063] Continue to refer Figure 5-Figure 6 A first pressing plate 34 is provided at the bottom of the first supporting plate 33, a first spring 39 is fixedly installed between the first pressing plate 34 and the first supporting plate 33, and a first pressing hole (not shown in the figure) is provided on the first pressing plate 34, the first pressing hole is used for the forming knife 38 to pass through, and a first pressing portion 310 is provided at the outer circle position of the first pressing hole at the lower end of the first pressing plate 34, the first pressing portion 310 is used to press the sheet 6;

[0064] Meanwhile, a first punching hole 313 is provided on the first mold core 312, and the first punching hole 313 is used for forming the boss 11 on the sealing cover 1;

[0065] In summary, when the boss 11 on the sealing cover 1 needs to be formed, the first upper die seat 32 is driven downward by the first cylinder 31, thereby driving the forming knife 38 to move downward;

[0066] At the same time, during the downward movement of the first upper die seat 32, the first pressure plate 34 is synchronously driven to move downward, and is pressed on the surface of the sheet 6 by the first pressing portion 310. Then the forming knife 38 passes through the first pressing hole and acts on the sheet 6, thereby driving the sheet 6 to form a boss 11 in the first stamping hole 313.

[0067] In the present invention, the second punching mechanism 4 and the first punching mechanism 3 have substantially the same structure, except that the size of the forming knife 38 is slightly different, so that the boss 11 can be punched successively, thereby making the forming of the boss 11 more stable.

[0068] Embodiment 3

[0069] This embodiment describes the structure and basic principle of the third punching mechanism 5, specifically:

[0070] like Figure 7-Figure 8 As shown, the third punching mechanism 5 includes a second lower die base 55 fixedly mounted on the support platform 7, and second guide pillars 56 are fixedly mounted around the second lower die base 55. A second upper die base 52 is slidably mounted on the second guide pillars 56. At the same time, a second cylinder 51 is arranged at the upper end of the second upper die base 52, and the output end of the second cylinder 51 is fixedly mounted on the second upper die base 52, so that the second upper die base 52 can be close to or away from the second lower die base 55 under the drive of the second cylinder 51;

[0071] Meanwhile, a second bearing plate 53 is fixedly mounted on the bottom of the second lower die base 55, and a second knife seat 57 is fixedly mounted on the bottom of the second bearing plate 53, and a trimming knife 58 is fixedly mounted on the bottom of the second knife seat 57;

[0072] A second mold core 512 is fixedly installed at the upper end of the second lower mold base 55, and two sets of second guide rails 511 are fixedly installed at the upper end of the second lower mold base 55 on both sides of the second mold core 512, and the upper ends of the two sets of second guide rails 511 are higher than the upper end of the second mold core 512, so that a second gap for the material sheet 6 to pass through is formed between the two sets of second guide rails 511, and the distance between the two sets of second guide rails 511 is adapted to the width of the material sheet 6, so that the position of the two sides of the material sheet 6 can be limited;

[0073] like Figure 7-Figure 8 A second pressing plate 54 is provided at the bottom of the second supporting plate 53, a second spring 59 is fixedly installed between the second pressing plate 54 and the second supporting plate 53, and a second pressing hole (not shown in the figure) is provided on the second pressing plate 54, the second pressing hole is used for the trimming knife 58 to pass through, and a second pressing portion 510 is provided at the outer circle position of the second pressing hole at the lower end of the second pressing plate 54, the second pressing portion 510 is used to press the sheet 6;

[0074] Meanwhile, a second punching hole 513 is provided on the second mold core 512, and the second punching hole 513 is used to avoid the boss 11 on the sealing cover 1;

[0075] In summary, when the sealing cover 1 needs to be trimmed, the second upper die base 52 is driven downward by the second cylinder 51, thereby driving the trimming knife 58 downward;

[0076] At the same time, during the downward movement of the second upper mold base 52, the second pressing plate 54 is synchronously driven to move downward, and is pressed on the surface of the sheet 6 through the second pressing portion 510. Then the trimming knife 58 passes through the second pressing hole and acts on the sheet 6, thereby performing a trimming operation on the sheet 6.

[0077] In order to maintain the accuracy of the trimming position when trimming the sheet 6, as shown in FIG. Fig. 9 As shown, the trimming knife 58 is provided with a hollow chamber (not marked in the figure), in which a third spring 515 is fixedly installed, and at the other end of the third spring 515 a positioning rod 516 is fixedly installed, and the positioning rod 516 is adapted to the second punching hole 513, so that when the trimming operation is performed on the sheet 6, the positioning rod 516 first enters the second punching hole 513, and then the sheet 6 is pressed and punched by the second holding portion 510, so that the sheet 6 can be positioned between punching, thereby ensuring that the sheet 6 is in the correct position when punching.

[0078] In this embodiment, a notch 581 is provided at the bottom of the trimming knife 58 , so that when the material sheet 6 is punched, the position of the reserved rib 13 is maintained, so as to facilitate the subsequent separation of the sealing cover 1 from the material sheet 6 .

[0079] Embodiment 4

[0080] When the sheet 6 is trimmed, the positioning rod 516 is inserted into the boss 11 for positioning, which may cause the boss 11 to deform due to pressure, thereby causing the misalignment of the subsequent finishing reference.

[0081] In order to solve the above problems, Figure 7 as well as Fig.10 As shown, a slide 9 is fixedly mounted on the second tool holder 57, and a guide rod 8 is mounted on the second pressure plate 54, and the guide rod 8 is suitable for cooperating with the slide 9 to control the position of the positioning rod 516 entering the inside of the boss 11;

[0082] like Figure 10-12 As shown, the slide 9 includes a vertical plate 91 fixedly mounted on the second knife seat 57, the vertical plate 91 has a vertically arranged first slide 92, the first slide 92 runs through the bottom position of the vertical plate 91, and the guide rod 8 includes a seat body 81 fixedly mounted on the second pressure plate 54, a rod body 82 is hinged on the seat body 81, a ball 83 is fixedly arranged at a position of the rod body 82 away from the seat body 81, the ball 83 is an elastic structure, and in the initial state, the ball 83 is located at the entrance of the first slide 92, and the ball 83 elastically abuts against the bottom surface of the first slide 92;

[0083] At the same time, a second slideway 93 inclined upward is connected at the end of the first slideway 92, and the bottom surface of the second slideway 93 is lower than the bottom surface of the first slideway 92, so that after the ball 83 enters the second slideway 93, it cannot return to the first slideway 92, and a stationary point 96 is provided at the connection between the first slideway 92 and the second slideway 93, and the stationary point 96 is located in the second slideway 93;

[0084] It should be noted that, because the rod body 82 is hinged on the seat body 81, the rod body 82 can drive the ball body 83 to swing into the second slideway 93;

[0085] Continue to refer Fig.10 A third slideway 94 is provided at one end of the second slideway 93 away from the first slideway 92. The third slideway 94 is provided to be inclined upward, and the bottom surface of the third slideway 94 gradually increases in height along a position away from the second slideway 93;

[0086] At the same time, the third slide 94 is connected to the fourth slide 95 at a position away from the second slide 93. The fourth slide 95 is connected to the first slide 92 at a position away from the third slide 94, and a step (not shown in the figure) is formed at the connection between the fourth slide 95 and the first slide 92. The step can prevent the ball 83 from directly entering the fourth slide 95 from the first slide 92.

[0087] like Fig. 9 As shown, an electromagnet 514 is fixedly installed at the bottom of the hollow chamber of the trimming knife 58, and an electric contact switch (not shown in the figure) is provided at the stationary point 96. When the electric contact switch is pressed, the electromagnet 514 can be energized, and when the contact switch is not pressed, the electromagnet 514 is always in a de-energized state;

[0088] In this embodiment, one end of the positioning rod 516 close to the electromagnet 514 is made of magnetic material, so that when the electromagnet 514 is charged, the positioning rod 516 can be adsorbed;

[0089] In summary, when positioning the sheet 6, first the positioning rod 516 extends into the boss 11, and at the same time the second pressing plate 54 also moves downward synchronously;

[0090] When the second pressing portion 510 on the second pressing plate 54 touches the surface of the sheet 6, the second pressing plate 54 moves upward relative to the second supporting plate 53, thereby driving the ball 83 to slide vertically upward along the first slideway 92 until the ball 83 reaches the stationary point 96. At this time, the second pressing portion 510 completely presses the sheet 6.

[0091] At the same time, the positioning rod 516 also extends into the bottom of the boss 11, thereby exerting a certain pressure on the boss 11;

[0092] When the ball 83 reaches the stationary point 96, it touches the electric switch, so that the electromagnet 514 is charged, and the positioning rod 516 is adsorbed by the electromagnet 514, so that the positioning rod 516 is separated from the bottom of the boss 11, thereby preventing the boss 11 from being deformed by overpressure, and at this time, the second holding portion 510 completely presses the sheet 6, so that the sheet 6 does not shake during the stamping process;

[0093] When the blank 6 is punched, the positioning rod 516 and the second pressing plate 54 start to return to the original position and move upward, and drive the ball 83 to move synchronously, so that the ball 83 returns to the initial position of the first slide 92 via the second slide 93, the third slide 94 and the fourth slide 95;

[0094] And when the ball 83 leaves the stationary point 96, the contact switch loses power synchronously, so that the positioning rod 516 returns to the initial position to facilitate the next stamping operation.

[0095] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multi-station stamping device for automobile sealing cover, characterized in that: include: A feeding mechanism (2), the feeding mechanism (2) being used for conveying and shaping automobile sealing covers; A first stamping mechanism (3), the first stamping mechanism (3) being used to perform a stamping operation on a sealing cover of an automobile; A second stamping mechanism (4), the second stamping mechanism (4) being used to perform shaping operations on the automobile sealing cover; A third punching mechanism (5), the third punching mechanism (5) comprising: Support table (7); a second lower die base (55), the second lower die base (55) being mounted on the support platform (7); a second guide post (56), the second guide post (56) being mounted on the second lower die base (55); A second upper die seat (52), the second upper die seat (52) being slidably disposed on a second guide post (56); a second bearing plate (53), the second bearing plate (53) being mounted on the second upper die seat (52); a second knife seat (57), the second knife seat (57) being mounted on the second carrying plate (53); a trimming knife (58), the trimming knife (58) being mounted on the second knife seat (57), the trimming knife (58) being provided with a hollow chamber inside, a third spring (515) being mounted in the hollow chamber, and a positioning rod (516) being mounted at the other end of the third spring (515); A second mold core (512), the second mold core (512) being mounted on a second lower mold base (55); A second punching hole (513), wherein the second punching hole (513) is arranged on the second mold core (512); An electromagnet (514) is installed at the bottom of the hollow chamber of the trimming knife (58), and one end of the positioning rod (516) close to the electromagnet (514) is made of magnetic material; A second pressing plate (54) is provided at the bottom of the second bearing plate (53), a second spring (59) is installed between the second pressing plate (54) and the second bearing plate (53), and a second pressing hole is provided on the second pressing plate (54); A slide seat (9) is mounted on the second knife seat (57), and a guide rod (8) is mounted on the second pressure plate (54), wherein the guide rod (8) is adapted to cooperate with the slide seat (9) to control the position of the positioning rod (516); The slide seat (9) comprises a vertical plate (91) mounted on the second knife seat (57), the vertical plate (91) having a vertically arranged first slideway (92), the first slideway (92) passing through the bottom position of the vertical plate (91); The guide rod (8) comprises a seat body (81) mounted on the second pressure plate (54), a rod body (82) being hingedly connected to the seat body (81), a sphere (83) being arranged at a position of the rod body (82) away from the seat body (81), and the sphere (83) being an elastic structure; The end of the first slideway (92) is connected to a second slideway (93) inclined upward, the bottom surface of the second slideway (93) is lower than the bottom surface of the first slideway (92), a stationary point (96) is provided at the connection between the first slideway (92) and the second slideway (93), an electric shock switch is provided at the stationary point (96), and the electric shock switch is electrically connected to the electromagnet (514); A third slideway (94) is provided at one end of the second slideway (93) away from the first slideway (92), the third slideway (94) being arranged to be inclined upward, and the bottom surface of the third slideway (94) gradually increases in height along a position away from the second slideway (93); A fourth slide (95) is connected to the third slide (94) at a position away from the second slide (93); a position away from the third slide (94) is connected to the first slide (92); a step is formed at the connection between the fourth slide (95) and the first slide (92); A notch (581) is provided at the bottom of the trimming knife (58); The upper end of the second lower mold base (55) is located on both sides of the second mold core (512), and two sets of second guide rails (511) are provided, and the upper ends of the two sets of second guide rails (511) are higher than the upper end of the second mold core (512); The first punching mechanism (3) comprises a first lower die seat (35) mounted on the support platform (7), first guide pillars (36) are mounted around the first lower die seat (35), a first upper die seat (32) is slidably mounted on the first guide pillars (36), a first cylinder (31) is disposed at the upper end of the first upper die seat (32), and an output end of the first cylinder (31) is mounted on the first upper die seat (32); A first bearing plate (33) is installed at the bottom of the first upper die seat (32), a first knife seat (37) is installed at the bottom of the first bearing plate (33), and a forming knife (38) is installed at the bottom of the first knife seat (37); A first mold core (312) is installed at the upper end of the first lower mold base (35); the upper end of the first lower mold base (35) is located on both sides of the first mold core (312); two groups of first guide rails (311) are arranged; the upper ends of the two groups of first guide rails (311) are higher than the upper end of the first mold core (312); and a first gap is formed between the two groups of first guide rails (311); A first pressing plate (34) is arranged at the bottom of the first bearing plate (33); a first spring (39) is installed between the first pressing plate (34) and the first bearing plate (33); a first pressing hole is opened on the first pressing plate (34); a first pressing portion (310) is arranged at the lower end of the first pressing plate (34) at an outer ring position of the first pressing hole; The first mold core (312) is provided with a first punching hole (313).

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