Stamping device for automobile part end cover

Abstract

The invention provides a stamping device for an automobile part end cover and relates to the field of aluminum alloy stamping, the stamping device comprises a base, a stamping table, a top plate, a lifting plate, an upper die, a lower die and a cleaning assembly, the stamping table is arranged on the upper side of the base, and the end face of the base is connected with the bottom face of the stamping table through a supporting ring; the end face of the stamping table is connected with the bottom face of the top plate through evenly-distributed supporting columns. The middle of the bottom face of the lifting plate is provided with an upper die, and the middle of the end face of the stamping table is provided with a lower die corresponding to the upper die. The cleaning assembly comprises a lower rotary disc, an upper rotary disc and two sweeping mechanisms, and the two sweeping mechanisms are symmetrically arranged on the two sides of the lower die and controlled through the lower rotary disc and the upper rotary disc. According to the stamping device, the surface of the die cavity can be cleaned in time after one-time stamping forming, the situation that impurities generated in the stamping process affect the quality of next-time stamping products is avoided, and stamping smoothness is guaranteed.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of aluminum alloy stamping, and particularly relates to a stamping device for an automobile part end cover. BACKGROUND

[0002] In the automobile production and manufacturing process, a large number of stamping parts need to be assembled; the automobile stamping part is obtained by applying external force to aluminum alloy plates, pipes and profiles and other raw materials through a stamping process and by using a hydraulic cylinder and a stamping die, so that the raw materials are plastically deformed or separated, thereby obtaining a workpiece with a specific shape and size; the stamping parts on the vehicle body are various, and most of the metal end covers of various parts are obtained by stamping. In the stamping process, due to the extrusion and friction of the stamping die on the metal raw material during the film forming process, metal scraps, waste residues and other particulate impurities are inevitably generated. Under the action of the extrusion force, these particulate impurities are easy to adhere to the cavity of the stamping die; at the same time, an oxide layer is generated on the surface of the metal raw material after high-temperature firing and stamping, and the oxide layer adhered to the surface of the raw material is also easy to fall off and adhere to the cavity of the stamping die during the stamping process. If the scraps, waste residues and other impurities and the oxide layer adhered to the cavity of the die are not cleaned in time, they will adhere to or even embed in the surface of the next batch of stamping parts due to the extrusion force during the next stamping process, resulting in a rough surface of the stamping part and affecting the quality of the stamping product. In addition, the scraps, waste residues and other impurities adhered to the cavity of the die are also easy to cause scratches and cracks on the surface of the next batch of stamping parts during the stamping process, thereby affecting the appearance and mechanical properties of the stamping product. At present, artificial cleaning is usually used to avoid the influence of the scraps, waste residues and oxide layer generated during stamping on the next batch of stamping parts, that is, after one stamping is completed, a cleaning brush or other tool is used to clean the cavity of the stamping die. This method not only increases labor cost, is time-consuming and labor-intensive, slows down the stamping rhythm and reduces the stamping efficiency, but also has potential safety hazards (that is, when cleaning manually, the tool needs to be held between the upper die and the lower die, which is easy to cause extrusion injury and other safety hazards). In addition, during the artificial cleaning process, human factors are large, cleaning dead angles are easy to appear, and whether the cavity is completely cleaned depends on the subjective initiative of the operator, so it is impossible to completely and effectively ensure the qualified rate of each batch of stamping parts and the consistency of the stamping product, and the industrialized and large-batch production requirements cannot be met. SUMMARY

[0003] In view of the problems in the prior art, the present application aims to provide a stamping device for an automobile part end cover, which can clean the surface of the mold cavity (including the upper die and the lower die) in time after one-time stamping forming, so as to avoid the adhesion of scraps, waste residues, oxide layers and the like on the surface of the mold cavity during the stamping process, thereby affecting the quality of the next stamping process; meanwhile, the stamping device cleans the mold cavity by a mechanical mode, so as to effectively avoid the problems of low cleaning efficiency, many safety hazards and great human influence factors.

[0004] The object of the present application is achieved by the following technical solutions: A stamping device for an automobile part end cover, comprising a base, a stamping table, a top plate, a lifting plate, an upper die, a lower die and a cleaning assembly, the stamping table is arranged in parallel on the upper side of the base, and the outer circle of the end face of the base is connected with the bottom surface of the stamping table through a coaxially arranged support ring; the top plate is arranged in parallel on the upper side of the stamping table, and the outer circle of the end face of the stamping table is connected with the bottom surface of the top plate through evenly distributed support columns; the lifting plate is arranged on the lower side of the top plate and is connected with the output end of the hydraulic column arranged on the upper side of the top plate, the upper die is arranged in the middle of the bottom surface of the lifting plate, and the lower die is arranged in the middle of the end face of the stamping table corresponding to the upper die; the cleaning assembly comprises a lower turntable, an upper turntable and two groups of cleaning mechanisms, the lower turntable is rotatably arranged between the base and the stamping table and is coaxially arranged with the lower die, the upper turntable is rotatably arranged on the end face of the lifting plate and is coaxially arranged with the upper die, and the two groups of cleaning mechanisms are symmetrically arranged on both sides of the lower die and are controlled through the lower turntable and the upper turntable.

[0005] Based on the further optimization of the above scheme, the lifting plate is located between the plurality of support columns, and the outer wall of the lifting plate is provided with sliding lugs corresponding to the support columns, the sliding lugs are penetrated by the corresponding support columns and are connected in a sliding manner; the buffer spring is arranged between the sliding lugs and the top plate and located outside the outer circle of the support column, for buffering during the stamping process.

[0006] Based on the further optimization of the above scheme, the cross section of the lower turntable is in the form of a ring structure, a coaxial first annular groove is formed in the end face of the lower turntable and located outside the outer circle of the through hole in the middle part, a plurality of lifting blocks are evenly arranged on the bottom surface of the stamping table corresponding to the first annular groove, and one end of the lifting block away from the stamping table is slidingly connected in the first annular groove, so as to realize the positioning of the lower turntable and the rotation of the lower turntable relative to the stamping table; the cross section of the upper turntable is in the form of a ring structure, the inner diameter of the through hole in the middle part of the upper turntable is greater than the outer diameter of the hydraulic column, a coaxial second annular groove is formed in the outer circle of the bottom surface of the upper turntable, and a plurality of support blocks are evenly arranged on the end face of the lifting plate corresponding to the second annular groove, and one end of the support block away from the lifting plate is slidingly connected in the second annular groove, so as to realize the positioning of the upper turntable on the end face of the lifting plate and the rotation of the upper turntable relative to the lifting plate.

[0007] Based on the further optimization of the above scheme, the cleaning mechanism comprises a sliding support, a positioning seat, a cleaning base, an upper cleaning block, a lower cleaning block and a driving mechanism. The sliding support is composed of a sliding positioning plate, a lower slide rod and an upper slide rod. The sliding positioning plate is slidingly arranged at the end face of the punching table, and the upper and lower ends of the sliding positioning plate are respectively fixed with the upper and lower slide rods. The length of the upper slide rod is greater than that of the lower slide rod. The punching table is provided with a first horizontal groove corresponding to the lower slide rod, and the lower turntable is provided with a first arc-shaped groove corresponding to the lower slide rod. One end of the lower slide rod away from the sliding positioning plate penetrates the first horizontal groove and the first arc-shaped groove in sequence and is slidingly connected (i.e. the lower slide rod is slidingly connected to the inner wall of the first horizontal groove and the first arc-shaped groove in sequence). The lifting plate is provided with a second horizontal groove corresponding to the upper slide rod, and the upper turntable is provided with a second arc-shaped groove corresponding to the upper slide rod. One end of the upper slide rod away from the sliding positioning plate penetrates the second horizontal groove and the second arc-shaped groove in sequence and is slidingly connected (i.e. the upper slide rod is slidingly connected to the inner wall of the second horizontal groove and the second arc-shaped groove in sequence). The side surface of the sliding positioning plate close to the lower die is fixed with the positioning seat, and the end of the positioning seat away from the sliding positioning plate is fixed with the cleaning base. The upper and lower ends of the cleaning base are respectively connected with the upper and lower cleaning blocks. The longitudinal sections of the upper and lower cleaning blocks are respectively shaped according to the upper punch and the lower die recess, and the upper and lower cleaning blocks are controlled by the driving mechanism arranged in the cleaning base. The upper surface of the upper cleaning block and the lower surface of the lower cleaning block are provided with cleaning bristles. The upper die is rotatably arranged at the bottom surface of the lifting plate, and the lower die is rotatably arranged at the end face of the punching table.

[0008] In order to avoid the deviation or disengagement of the lower slide rod and the upper slide rod during the sliding process, thereby causing the whole mechanism to be stuck, based on the further optimization of the above scheme, the end of the lower slide rod located below the lower turntable is provided with a first limiting block, and the end of the upper slide rod located above the upper turntable is provided with a second limiting block.

[0009] Based on the further optimization of the above scheme, the driving mechanism comprises a conical slider, a sliding push rod, a sliding sleeve, a motor and a screw rod, a cavity is formed in the cleaning base, and the conical slider is slidably arranged in the cavity; the longitudinal section of the conical slider is in the shape of an isosceles trapezoid with the diameter gradually decreasing from the sliding positioning plate to the downward mold direction; the upper and lower inclined surfaces of the conical slider are connected with the upper and lower cleaning blocks through the sliding push rod, respectively; one end of the sliding push rod is slidably connected with the inclined surface of the conical slider, and the other end of the sliding push rod penetrates through the corresponding side wall of the cavity and is fixedly connected with the upper or lower cleaning block; the coaxial sliding sleeve is fixedly arranged on the side surface of the conical slider close to the sliding positioning plate; a sliding hole is formed in the middle of the positioning seat and penetrates through the positioning seat; one end of the sliding sleeve away from the conical slider penetrates through the corresponding side wall of the cavity and is slidably arranged in the sliding hole; the motor is fixedly arranged on the side surface of the sliding positioning plate away from the downward mold and corresponding to the sliding sleeve; the screw rod is fixedly arranged at the output end of the motor, and one end of the screw rod away from the motor penetrates through the corresponding sliding positioning plate and is connected with the corresponding sliding sleeve; the screw rod is rotationally connected with the sliding positioning plate and threadedly connected with the sliding sleeve.

[0010] Based on the further optimization of the above scheme, the motor outer ring is provided with a protective shell, and the protective shell is fixedly connected with the side surface of the sliding positioning plate.

[0011] Based on the further optimization of the above scheme, the upper mold is rotationally connected with the bottom surface of the lifting plate through the coaxially arranged rotating seat, specifically: the rotating seat is rotationally clamped in the middle of the bottom surface of the lifting plate, and one end of the rotating seat away from the lifting plate is provided with the upper mold; the central axes of the lifting plate, the rotating seat and the upper mold are collinear, and the outer diameter of the rotating seat is smaller than the maximum outer diameter of the upper mold; the lower mold is rotationally connected with the end surface of the stamping table through the coaxially arranged rotating shaft, specifically: the bottom end of the rotating shaft is rotationally connected with the end surface of the base, one end of the rotating shaft away from the base penetrates through the middle through hole of the lower turntable and the stamping table in sequence and is connected with the bottom surface of the lower mold; the central axes of the rotating shaft, the stamping table and the lower mold are collinear, so that the rotating shaft realizes the support and rotational driving of the lower mold.

[0012] Based on the further optimization of the above scheme, the lower rotating disc is controlled to rotate through the first ratchet mechanism on the rotating shaft, the first ratchet mechanism comprises a positioning disc, a plurality of first pawls and first elastic sheets, the through hole in the middle of the lower rotating disc is arranged as a ratchet hole, the positioning disc is fixedly sleeved on the outer wall of the rotating shaft corresponding to the lower rotating disc and the outer diameter of the positioning disc is smaller than the minimum inner diameter of the ratchet hole of the lower rotating disc, the plurality of first pawls and first elastic sheets are uniformly distributed on the end face of the positioning disc around the central axis of the rotating shaft, one end of the first pawl is rotatably connected with the end face of the positioning disc through a positioning support rod, the other end is correspondingly arranged with the ratchet hole of the lower rotating disc, the first elastic sheet is arranged on the inner side of the end of the first pawl away from the positioning support rod, and the end of the first elastic sheet away from the first pawl is fixedly connected with the end face of the positioning disc; the upper rotating disc is connected with the rotating seat through the second ratchet mechanism, the second ratchet mechanism comprises a rotating block, a plurality of second pawls and second elastic sheets, the through hole in the middle of the upper rotating disc is arranged as a ratchet hole, the rotation direction of the ratchet hole of the upper rotating disc is opposite to that of the ratchet hole of the lower rotating disc, the rotating block is rotatably connected in the middle of the end face of the lifting plate and the bottom surface of the rotating block is fixedly connected with the top surface of the rotating seat, the rotating block and the rotating seat are coaxially arranged and a connecting groove is formed in the top of the rotating block corresponding to the hydraulic column, the output end of the hydraulic column is rotatably connected with the end face of the connecting groove, the outer diameter of the rotating block is smaller than the minimum inner diameter of the ratchet hole of the upper rotating disc, the plurality of second pawls and second elastic sheets are uniformly distributed on the end face of the rotating block around the central axis of the rotating block, one end of the second pawl is rotatably connected with the end face of the rotating block through a positioning support rod, the other end is correspondingly arranged with the ratchet hole of the upper rotating disc, the second elastic sheet is arranged on the inner side of the end of the second pawl away from the positioning support rod, and the end of the second elastic sheet away from the second pawl is fixedly connected with the end face of the rotating block; the lower rotating disc and the upper rotating disc are driven through the synchronous mechanism, the outer wall of the lower rotating disc and the upper rotating disc is fixedly sleeved with an external gear ring, the synchronous mechanism comprises a first gear, a synchronous shaft and a second gear, the synchronous shaft is arranged away from the two groups of cleaning mechanisms, the bottom end of the synchronous shaft is rotatably arranged on the end face of the base and located outside the lower rotating disc, the outer wall of the synchronous shaft is fixedly sleeved with the first gear corresponding to the lower rotating disc and the first gear is engaged with the external gear ring of the lower rotating disc, the upper end of the synchronous shaft penetrates the stamping table and the lifting plate in sequence and is rotatably connected with the bottom surface of the top plate, the outer wall of the synchronous shaft is rotatably connected with the stamping table and slidably connected with the lifting plate, the outer wall of the synchronous shaft is fixedly sleeved with the second gear corresponding to the upper rotating disc and the second gear is engaged with the external gear ring of the upper rotating disc.

[0013] The following are the technical effects of the present application: The application is a cleaning assembly composed of a lower turntable, an upper turntable and two groups of cleaning mechanisms, which controls the movement of the two groups of cleaning mechanisms by the lower turntable and the upper turntable, and then realizes the mutual moving away of the two groups of cleaning mechanisms during the film combining process of the upper die and the lower die, avoiding interference with the die combining process, and realizes the mutual moving close of the two groups of cleaning mechanisms after the opening of the upper die and the lower die, completing the cleaning of the surface of the upper die and the lower die; at the same time, the cleaning mechanism composed of a sliding support, a positioning seat, a cleaning base, an upper cleaning block, a lower cleaning block and a driving mechanism can ensure that the upper cleaning block and the lower cleaning block with a profiling structure are respectively attached to the surface of the upper die and the lower die, cooperate with the rotation process of the upper die and the lower die around their own axes, realize the cleaning work of the inner wall of the upper die and the lower die, and the cleaning range is wide, there is no dead angle and the cleaning is complete, avoiding the adhesion of debris, waste residue, oxidation layer and the like generated in the stamping process on the surface of the die cavity (i.e. the upper die and the lower die). In addition, the cleaning of the die cavity is completed by the cleaning assembly cooperating with the mechanical structure, which can clean the die cavity in time after stamping, not only ensuring the smoothness of the stamping rhythm, but also improving the stamping efficiency, avoiding potential safety hazards in the process of artificial cleaning (such as the problem of body injury of the operator caused by splashing debris and waste residue in the process of artificial cleaning), effectively avoiding the influence of artificial unstable factors, ensuring the thoroughness of each cleaning, and improving the consistency and qualification rate of each batch of stamping products. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the stamping device in the embodiment of the application.

[0015] Figure 2 It is a schematic diagram of the overall structure of the stamping device in the embodiment of the application. Figure 1 It is a partial enlarged view of A in the embodiment of the application.

[0016] Figure 3 It is a B-B sectional view of the embodiment of the application. Figure 1

[0017] Figure 4 It is a partial enlarged view of D in the embodiment of the application. Figure 3

[0018] Figure 5 It is a C-C sectional view of the embodiment of the application. Figure 1

[0019] Figure 6 It is a partial enlarged view of E in the embodiment of the application. Figure 5

[0020] Figure 7 It is a schematic diagram of the sliding positioning plate of the stamping device in the embodiment of the application.

[0021] Figure 8 It is a schematic diagram of the cleaning state of the stamping device in the embodiment of the application.

[0022] ​​​​Wherein, 10, base; 11, support ring; 20, punching table; 21, support column; 22, first horizontal groove; 30, top plate; 31, hydraulic column; 40, lifting plate; 41, sliding support lug; 42, buffer spring; 43, rotating seat; 44, second horizontal groove; 45, rotating block; 46, second pawl; 47, second elastic sheet; 50, upper die; 60, lower die; 61, rotating shaft; 62, positioning disc; 63, first pawl; 64, first elastic sheet; 71, lower rotating disc; 711, first annular groove; 712, first arc-shaped groove; 72, upper rotating disc; 721, second annular groove; 722, second arc-shaped groove; 731, sliding support; 7311, sliding positioning plate; 7312, lower sliding rod; 7313, upper sliding rod; 732, positioning seat; 733, cleaning base; 734, upper cleaning block; 735, lower cleaning block; 7361, conical sliding block; 7362, sliding push rod; 7363, sliding sleeve; 7364, motor; 7365, screw rod; 701, first gear; 702, synchronous shaft; 703, second gear. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments.

[0024] Embodiment 1 A stamping device for an automobile part end cover, referring to Figure 1 As shown: including base 10, punching table 20, top plate 30, lifting plate 40, upper die 50, lower die 60 and cleaning assembly, the punching table 20 is arranged in parallel on the upper side of the base 10 and the outer circle of the end face of the base 10 is connected with the bottom surface of the punching table 20 through the coaxially arranged support ring 11 (as Figure 1 As shown: the support ring 11 is coaxial with the base 10 and the upper and lower sides thereof are fixedly connected with the bottom surface of the punching table 20 and the end face of the base 10 respectively, the surface of the support ring 11 can be uniformly provided with a rubber layer, thereby forming a buffer energy absorption between the base 10 and the punching table 20, avoiding damage to the equipment caused by repeated stamping); the top plate 30 is arranged in parallel on the upper side of the punching table 20 and the outer circle of the end face of the punching table 20 is connected with the bottom surface of the top plate 30 through the uniformly distributed support columns 21 (the number of support columns 21 is generally not less than three, which is set according to the actual situation; as Figure 5 As shown, the support columns 21 in the embodiment are four and are respectively located at the four sides of the punching table 20); the lifting plate 40 is arranged on the lower side of the top plate 30 and is connected with the output end of the hydraulic column 31 arranged on the upper side of the top plate 30 (the hydraulic column 31 can adopt a hydraulic device in the conventional stamping process in the field, which is not specifically limited in the embodiment), the lifting plate 40 is located between the plurality of support columns 21 and the sliding support lug 41 is arranged on the outer wall of the lifting plate 40 corresponding to the support column 21 (combined with Figure 1 andFigure 5 As shown, the sliding lug 41 is slidably connected to the corresponding support column 21; a buffer spring 42 is provided between the sliding lug 41 and the top plate 30 and on the outer ring of the support column 21 for buffering during the stamping process.

[0025] An upper mold 50 is set at the center of the bottom surface of the lifting plate 40, and a lower mold 60 is set at the center of the end face of the stamping table 20 corresponding to the upper mold 50. The cleaning assembly includes a lower turntable 71, an upper turntable 72, and two sets of cleaning mechanisms. The lower turntable 71 is rotatably mounted between the base 10 and the stamping table 20 and is coaxially mounted with the lower mold 60. Figure 1 , Figure 3 and Figure 4 As shown: The lower turntable 71 has a ring-shaped cross-section. A coaxial first annular groove 711 is formed on the outer ring of the through hole at the end face of the lower turntable 71. Multiple lifting blocks are evenly arranged on the bottom surface of the stamping table 20 corresponding to the first annular groove 711 (the number of lifting blocks is generally 4 to 8, such as...). Figure 4 As shown, in this embodiment, six evenly distributed lifting blocks are used in the first annular groove 711. The end of the lifting block away from the stamping table 20 is slidably engaged in the first annular groove 711, thereby realizing the positioning of the lower turntable 71 and its rotation relative to the stamping table 20; the upper turntable 72 is rotatably mounted on the end face of the lifting plate 40 and is coaxially arranged with the upper die 50, combined with Figure 1 and Figure 5 As shown: The upper turntable 72 has an annular cross-section, and the inner diameter of the through hole in the middle of the upper turntable 72 is larger than the outer diameter of the hydraulic column 31. A coaxial second annular groove 721 is formed on the outer ring of the bottom surface of the upper turntable 72. Multiple support blocks are evenly arranged on the end face of the lifting plate 40 corresponding to the second annular groove 721 (the number of support blocks is generally 4 to 8, such as...). Figure 5 As shown, in this embodiment, six evenly distributed support blocks are used in the second annular groove 721. The end of the support block away from the lifting plate 40 is slidably engaged in the second annular groove 721, thereby realizing the positioning of the upper turntable 72 on the end face of the lifting plate 40 and its rotation relative to the lifting plate 40.

[0026] Two sets of cleaning mechanisms are symmetrically arranged on both sides of the lower mold 60 (e.g.) Figure 1 (As shown) and controlled by the lower turntable 71 and the upper turntable 72. The cleaning mechanism includes a sliding bracket 731, a positioning seat 732, a cleaning base 733, an upper cleaning block 734, a lower cleaning block 735, and a drive mechanism, see [reference]. Figure 7 As shown: The sliding bracket 731 consists of a sliding positioning plate 7311, a lower sliding rod 7312, and an upper sliding rod 7313. The sliding positioning plate 7311 is slidably mounted on the end face of the stamping table 20, and the upper sliding rod 7313 and the lower sliding rod 7312 are respectively fixedly mounted on the middle of its upper and lower ends. The length of the upper sliding rod 7313 is greater than the length of the lower sliding rod 7312 (e.g., ...). Figure 7As shown), the stamping table 20 has a first horizontal groove 22 corresponding to the sliding rod 7312, and the lower turntable 71 has a first arc-shaped groove 712 corresponding to the sliding rod 7312. The end of the sliding rod 7312 away from the sliding positioning plate 7311 passes through the first horizontal groove 22 and the first arc-shaped groove 712 in sequence and is slidably connected (that is, the sliding rod 7312 is slidably engaged with the inner wall of the first horizontal groove 22 and the inner wall of the first arc-shaped groove 712 in sequence, combined with...). Figure 1 , Figure 3 , Figure 4 As shown), the lifting plate 40 has a second horizontal groove 44 corresponding to the upper slide rod 7313, and the upper turntable 72 has a second arc-shaped groove 722 corresponding to the upper slide rod 7313. The end of the upper slide rod 7313 away from the sliding positioning plate 7311 passes through the second horizontal groove 44 and the second arc-shaped groove 722 in sequence and is slidably connected (that is, the upper slide rod 7313 is slidably engaged with the inner wall of the second horizontal groove 44 and the inner wall of the second arc-shaped groove 722 in sequence, combined with...). Figure 1 and Figure 5 As shown); the slide bar 7312 is located at the end of the lower turntable 71 on the lower side (i.e. Figure 1 or Figure 7 The bottom end shown is equipped with a first limiting block, and the upper slide rod 7313 is located on the upper side of the upper turntable 72 (i.e., Figure 1 or Figure 7 A second limiting block is provided at the end of the top (as shown). The sliding positioning plate 7311 is located on the side near the lower mold 60 (i.e., Figure 2 The right side shown is fixedly provided with a positioning seat 732, and a cleaning base 733 is fixedly provided at the end of the positioning seat 732 away from the sliding positioning plate 7311; the upper and lower end faces of the cleaning base 733 respectively engage with the upper cleaning block 734 and the lower cleaning block 735 (that is, the upper and lower end faces of the cleaning base 733 respectively have slots corresponding to the upper cleaning block 734 and the lower cleaning block 735), and the longitudinal sections of the upper cleaning block 734 and the lower cleaning block 735 respectively correspond to the upper mold 50 punch and the lower mold 60 groove and are respectively set as a contour structure (e.g. Figure 2 (As shown) and the upper cleaning block 734 and the lower cleaning block 735 are controlled by a drive mechanism provided in the cleaning base 733; cleaning bristles (such as...) are provided on the upper surface of the upper cleaning block 734 and the lower surface of the lower cleaning block 735. Figure 2 (As shown). Combined Figure 1 and Figure 2 As shown: The drive mechanism includes a tapered slider 7361, a sliding push rod 7362, a sliding sleeve 7363, a motor 7364, and a screw 7365. A cavity is formed inside the cleaning base 733, and the tapered slider 7361 is slidably disposed within the cavity. The longitudinal section of the tapered slider 7361 extends from the sliding positioning plate 7311 towards the downward direction of the mold 60 (i.e.,...). Figure 2isosceles trapezoidal structure with gradually decreasing diameters from left to right direction); the upper and lower inclined surfaces of the conical sliding block 7361 are connected with the upper cleaning block 734 and the lower cleaning block 735 through the sliding push rod 7362, respectively, as shown in Figure 2 As shown: one end of the sliding push rod 7362 is in sliding connection with the inclined surface of the conical sliding block 7361, and the other end of the sliding push rod 7362 penetrates through the corresponding side wall of the cavity and is fixedly connected with the upper cleaning block 734 or the lower cleaning block 735; the side surface of the conical sliding block 7361 close to the sliding positioning plate 7311 is fixedly provided with a coaxial sliding sleeve 7363, a sliding hole penetrating through the sliding positioning plate 7311 is formed in the middle of the positioning seat 732, and the end of the sliding sleeve 7363 away from the conical sliding block 7361 penetrates through the corresponding side wall of the cavity and is slidingly arranged in the sliding hole (in order to ensure that the sliding sleeve 7363 only slides left and right in the direction shown in the figure and avoids rotating around its own axis, the sliding sleeve 7363 is provided in a rectangular or square prism structure, and the sliding hole is correspondingly provided in a rectangular or square hole structure). Figure 2 As shown: one end of the sliding push rod 7362 is in sliding connection with the inclined surface of the conical sliding block 7361, and the other end of the sliding push rod 7362 penetrates through the corresponding side wall of the cavity and is fixedly connected with the upper cleaning block 734 or the lower cleaning block 735; the side surface of the conical sliding block 7361 close to the sliding positioning plate 7311 is fixedly provided with a coaxial sliding sleeve 7363, a sliding hole penetrating through the sliding positioning plate 7311 is formed in the middle of the positioning seat 732, and the end of the sliding sleeve 7363 away from the conical sliding block 7361 penetrates through the corresponding side wall of the cavity and is slidingly arranged in the sliding hole (in order to ensure that the sliding sleeve 7363 only slides left and right in the direction shown in the figure and avoids rotating around its own axis, the sliding sleeve 7363 is provided in a rectangular or square prism structure, and the sliding hole is correspondingly provided in a rectangular or square hole structure). Figure 1 As shown: one end of the sliding push rod 7362 is in sliding connection with the inclined surface of the conical sliding block 7361, and the other end of the sliding push rod 7362 penetrates through the corresponding side wall of the cavity and is fixedly connected with the upper cleaning block 734 or the lower cleaning block 735; the side surface of the conical sliding block 7361 close to the sliding positioning plate 7311 is fixedly provided with a coaxial sliding sleeve 7363, a sliding hole penetrating through the sliding positioning plate 7311 is formed in the middle of the positioning seat 732, and the end of the sliding sleeve 7363 away from the conical sliding block 7361 penetrates through the corresponding side wall of the cavity and is slidingly arranged in the sliding hole (in order to ensure that the sliding sleeve 7363 only slides left and right in the direction shown in the figure and avoids rotating around its own axis, the sliding sleeve 7363 is provided in a rectangular or square prism structure, and the sliding hole is correspondingly provided in a rectangular or square hole structure).

[0027] The upper die 50 is rotationally arranged on the bottom surface of the lifting plate 40, and the lower die 60 is rotationally arranged on the end surface of the stamping table 20; specifically, the upper die 50 is rotationally connected with the bottom surface of the lifting plate 40 through the coaxially arranged rotating seat 43, specifically, the rotating seat 43 is rotationally clamped in the middle of the bottom surface of the lifting plate 40 (the rotating seat 43 can be driven to rotate by a rotating motor arranged inside the lifting plate 40), and the end of the rotating seat 43 away from the lifting plate 40 is provided with the upper die 50, the middle axes of the lifting plate 40, the rotating seat 43 and the upper die 50 are collinear, and the outer diameter of the rotating seat 43 is smaller than the maximum outer diameter of the upper die 50 (as shown in the figure). Figure 1 The lower die 60 is rotationally connected with the end surface of the stamping table 20 through the coaxially arranged rotating shaft 61, specifically, the bottom end of the rotating shaft 61 is rotationally connected with the end surface of the base 10 (the rotating shaft 61 can be driven to rotate by a rotating motor arranged inside the base 10), and the end of the rotating shaft 61 away from the base 10 penetrates through the middle hole of the lower turntable 71 and the stamping table 20 in turn and is connected with the bottom surface of the lower die 60, the middle axes of the rotating shaft 61, the stamping table 20 and the lower die 60 are collinear, so as to realize the support and rotational driving of the lower die 60 through the rotating shaft 61.

[0028] The lower turntable 71 is controlled to rotate by a first ratchet mechanism on the rotating shaft 61. The first ratchet mechanism includes a positioning plate 62, multiple sets of first pawls 63, and first spring pieces 64. The central through hole of the lower turntable 71 is set as a ratchet hole. The positioning plate 62 is fixedly sleeved on the outer wall of the rotating shaft 61, and the outer diameter of the positioning plate 62 is smaller than the minimum inner diameter of the ratchet hole of the lower turntable 71. Multiple sets of first pawls 63 and first spring pieces 64 are evenly distributed on the end face of the positioning plate 62 around the central axis of the rotating shaft 61 (the first pawls 63 and first spring pieces 64 are correspondingly arranged and their number is not less than two sets, such as...). Figure 4 As shown, in this embodiment, there are three sets of first pawls 63 and first spring pieces 64. One end of the first pawl 63 is rotatably connected to the end face of the positioning disk 62 via a positioning support rod, and the other end is correspondingly set to the ratchet hole of the lower turntable 71. The first spring piece 64 is set on the inner side of the end of the first pawl 63 away from the positioning support rod, and the end of the first spring piece 64 away from the first pawl 63 is fixedly connected to the end face of the positioning disk 62. The upper turntable 72 and the rotating seat 43 are connected by a second ratchet mechanism. The second ratchet mechanism includes a rotating block 45, multiple sets of second pawls 46 and second spring pieces 47. The through hole in the middle of the upper turntable 72 is set as a ratchet hole, and the rotation direction of the ratchet hole of the upper turntable 72 is opposite to that of the ratchet hole of the lower turntable 71 (in conjunction with...). Figure 4 and Figure 6 (As can be seen from the comparison), the rotating block 45 is rotatably engaged in the middle of the end face of the lifting plate 40, and the bottom surface of the rotating block 45 is fixedly connected to the top surface of the rotating seat 43. The rotating block 45 and the rotating seat 43 are coaxially arranged, and the top of the rotating block 45 has a connecting groove corresponding to the hydraulic column 31. The output end of the hydraulic column 31 is rotatably connected to the end face of the connecting groove (e.g., Figure 1 As shown, the inner diameter of the connecting groove is larger than the outer diameter of the hydraulic column 31, thereby avoiding interference between the hydraulic column 31 and the rotation of the rotating block 45. The outer diameter of the rotating block 45 is smaller than the minimum inner diameter of the ratchet hole of the upper turntable 72 (e.g., Figure 6 As shown), multiple sets of second pawls 46 and second spring pieces 47 are evenly distributed on the end face of the rotating block 45 around the central axis (the second pawls 46 and second spring pieces 47 are correspondingly arranged and their number is not less than two sets, such as...). Figure 6 As shown, in this embodiment, there are three sets of second pawls 46 and second spring pieces 47. One end of the second pawl 46 is rotatably connected to the end face of the rotating block 45 via a positioning support rod, and the other end is correspondingly set with the ratchet hole of the upper turntable 72. The second spring piece 47 is set on the inner side of the end of the second pawl 46 away from the positioning support rod, and the end of the second spring piece 47 away from the second pawl 46 is fixedly connected to the end face of the rotating block 45. The lower turntable 71 and the upper turntable 72 are driven by a synchronization mechanism. The lower turntable 71 and the outer wall of the upper turntable 72 are fixedly sleeved with external gear rings. The synchronization mechanism includes a first gear 701, a synchronization shaft 702, and a second gear 703. Figure 1 , Figure 3 and Figure 5As shown, the synchronous shaft 702 is disposed away from the two sets of cleaning mechanisms, the bottom end of the synchronous shaft 702 is rotatably disposed on the end face of the base 10 and located outside the lower turntable 71, the outer wall of the synchronous shaft 702 is fixedly sleeved with the first gear 701 corresponding to the lower turntable 71, and the first gear 701 is engaged with the outer gear ring of the lower turntable 71, the upper end of the synchronous shaft 702 is rotatably connected with the bottom face of the top plate 30 after sequentially penetrating the stamping table 20 and the lifting plate 40, the outer wall of the synchronous shaft 702 is rotatably connected with the stamping table 20 and slidably connected with the lifting plate 40, and the outer wall of the synchronous shaft 702 is fixedly sleeved with the second gear 703 corresponding to the upper turntable 72, and the second gear 703 is engaged with the outer gear ring of the upper turntable 72.

[0029] Embodiment 2: As another preferred embodiment of the present application, on the basis of the stamping device described in Embodiment 1, in order to avoid the bruising caused by repeated impact between the lower die 60 and the stamping table 20 during stamping, a rubber buffer layer is laid on the end face of the stamping table 20, and a through slot is opened in the rubber buffer layer corresponding to the first horizontal groove 22, so that the buffer between the stamping table 20 and the lower die 60 is realized.

[0030] Embodiment 3: As another preferred embodiment of the present application, on the basis of the stamping device described in Embodiment 1, in order to facilitate unloading, an unloading assembly can be arranged in the inner cavity of the rotating shaft 61, the unloading assembly comprises a circulating lifting mechanism, a jacking rod and a jacking block, the circulating lifting mechanism is arranged in the inner cavity of the rotating shaft 61 and is used for controlling the jacking rod to move up and down reciprocatingly, one end of the jacking rod away from the rotating shaft 61 is fixedly connected with the jacking block after sequentially penetrating the rotating shaft 61 and the bottom of the lower die 60, and a placing slot is opened in the jacking block corresponding to the bottom of the groove of the lower die 60.

[0031] Embodiment 4: As another preferred embodiment of the present application, on the basis of the stamping device described in Embodiment 1, a clamping column is arranged at the end of the conical sliding block 7361 away from the sliding sleeve 7363, and a through hole is opened in the side surface of the cleaning base 733 corresponding to the clamping column, a clamping slot is opened in the end of the clamping column away from the conical sliding block 7361 in one of the two sets of cleaning mechanisms, and a clamping protrusion is arranged in the end of the clamping column away from the conical sliding block 7361 corresponding to the clamping slot in the other set of cleaning mechanisms, so that the coordination of the two sets of cleaning mechanisms is ensured through the cooperation of the clamping slot and the clamping protrusion, and the stability of cleaning is ensured.

[0032] Embodiment 5: As another preferred embodiment of the present application, on the basis of the stamping device of any one of Embodiments 1-4, in order to remove the impurity particles after cleaning and avoid their re-adhesion to the surface of the mold cavity, a suction pipe with its nozzle downward is fixedly arranged on the outer side wall of the cleaning base 733, and the suction pipe is in communication with a dust collector arranged outside the stamping device, so that the impurities after cleaning are adsorbed or blown away through the suction pipe, thereby avoiding their re-adhesion to the surface of the mold cavity.

[0033] Embodiment 6: A stamping method for an end cover of an automobile part, which adopts the stamping device in Embodiment 5, comprising: Step S1, part stamping forming: placing the raw material on the end face of the lower die 60, and driving the lifting plate 40 to move downward by the hydraulic column 31, so that the upper die 50 gradually approaches the lower die 60 and performs stamping forming on the raw material; during this process, the two sets of cleaning mechanisms are respectively located on the two sides of the lower die 60, as shown in Figure 1 ; after pressure maintaining and cooling, the lifting plate 40 is driven to move upward by the hydraulic column 31, and the stamping forming product is obtained.

[0034] Step S2, part unloading: unloading the stamping forming product (which can be unloaded by the unloading assembly, or unloaded by other means), and transferring the unloaded stamping forming product to the next process (which can be transferred by a mechanical arm, or transferred by other equivalent means).

[0035] Step S3, mold cavity cleaning: including cleaning structure driving and self-rotation of the upper die 50 and the lower die 60; Cleaning mechanism driving: starting the rotation shaft 61 to rotate in the counterclockwise direction as shown in Figure 3 , the rotation shaft 61 drives the lower die 60 and the positioning disc 62 to rotate, the positioning disc 62 drives the lower turntable 71 to rotate through the clamping of the first pawl 63 in the ratchet hole of the lower turntable 71, the lower turntable 71 drives the upper turntable 72 to rotate through the synchronous mechanism composed of the first gear 701, the synchronous shaft 702 and the second gear 703 (during this process, the upper turntable 72 drives the corresponding rotating seat 43 and the upper die 50 to rotate through the second ratchet mechanism, at this time the driving mechanism of the rotating seat 43 does not control its operation), and then the lower turntable 71 and the upper turntable 72 are used to realize the movement of the two sets of sliding supports 731 to the side close to each other, the two sets of cleaning bases 733, the upper cleaning blocks 734 and the lower cleaning blocks 735 are simultaneously moved to the side close to each other through the sliding supports 731, until the lower slide rods 7312 and the upper slide rods 7313 of the sliding supports 731 are respectively located in the inner walls of the corresponding first horizontal grooves 22 and second horizontal grooves 44, as shown in Figure 8As shown; the rotation of the rotating shaft 61 is paused, and the motor 7364 is started simultaneously. The rotation of the screw 7365 causes the sliding sleeve 7363 to slide away from the motor 7364, thereby pushing the conical slider 7361 in the cavity towards the end away from the sliding sleeve 7363 (i.e., Figure 2 (As shown on the right) Slide the tapered slider 7361 and sliding push rod 7362 to push the corresponding upper cleaning block 734 upward and the lower cleaning block 735 downward, respectively, so that the upper inner wall of the upper cleaning block 734 is stuck in the outer wall of the corresponding upper die 50 punch, and the lower outer wall of the lower cleaning block 735 is stuck in the inner wall of the corresponding lower die 60 groove. See [link / description]. Figure 8 As shown, stop the 7364 motor drive; The self-rotation of upper mold 50 and lower mold 60: Restart the rotating shaft 61 as follows Figure 3 As shown, rotating clockwise, i.e., rotating shaft 61 reverses direction, drives the lower mold 60 and positioning disk 62 to rotate in opposite directions. Due to the presence of the first ratchet mechanism and the lower cleaning block 735 being engaged in the groove of the lower mold 60, the lower rotating disk 71 remains stationary during the rotation of the positioning disk 62. Simultaneously, the rotating seat 43 is activated by the drive mechanism of the rotating seat 43. Figure 6 As shown, rotating counterclockwise, the rotating seat 43 drives the upper mold 50 and the rotating block 45 as follows. Figure 6 As shown, the upper turntable 72 remains stationary due to the presence of the second ratchet mechanism, and the upper cleaning block 734 and the lower cleaning block 735 clean the surface of the mold cavity by utilizing the self-rotation of the upper mold 50 and the lower mold 60 (during this process, the suction tube can be activated to adsorb the cleaned particulate impurities and oxide layer).

[0036] Step S4, Cleaning Component Reset: First, the reverse rotation of screw 7365 causes the conical slider 7361 to move towards the end of the sliding sleeve 7363 within the cavity, thereby causing the upper cleaning block 734 and lower cleaning block 735 to respectively engage with the surfaces of the corresponding cleaning bases 733; then, the rotating seat 43 and rotating block 45 are activated as follows. Figure 6 Rotating clockwise as shown in the direction will drive the upper turntable 72 and the lower turntable 71 as follows: Figure 6 , Figure 4 The lower turntable 71 rotates clockwise in the direction shown (during this process, the lower turntable 71 drives the corresponding rotating shaft 61 and the lower mold 60 to rotate through the first ratchet mechanism, and the drive mechanism of the rotating shaft 61 does not control its operation at this time), thereby causing the two sets of cleaning structures to move away from each other and reset.

[0037] Step S5, Batch Production: Repeat steps S1 to S4 to perform continuous stamping forming process.

Claims

1. A stamping device for an end cover of an automobile part, characterized by: The utility model relates to a stamping device, including base (10), stamping platform (20), top plate (30), lifting plate (40), upper die (50), lower die (60) and cleaning assembly, stamping platform (20) parallel setting is in the upper side of base (10) and the outer circle of base (10) end surface is connected with the bottom surface of stamping platform (20) through the coaxial setting support ring (11), top plate (30) parallel setting is in the upper side of stamping platform (20) and the outer circle of stamping platform (20) end surface is connected with the bottom surface of top plate (30) through the support column (21) of uniform distribution, lifting plate (40) setting is in the lower side of top plate (30) and with the hydraulic column (31) output end of setting of top plate (30) is connected, and the bottom surface middle part of lifting plate (40) sets up upper die (50), and the end surface middle part of stamping platform (20) sets up lower die (60) corresponding upper die (50), and cleaning assembly includes lower turntable (71), upper turntable (72) and two groups of cleaning mechanism, and lower turntable (71) rotation setting is between base (10) and stamping platform (20) and is coaxial with lower die (60), and upper turntable (72) rotation setting is in the end surface of lifting plate (40) and is coaxial with upper die (50), and two groups of cleaning mechanism are symmetrically set up in the both sides of lower die (60) and are controlled through lower turntable (71) and upper turnplate (72).

2. A punch press for an end cover of an automobile part according to claim 1, wherein: The lifting plate (40) is located between the plurality of support columns (21), and the outer wall of the lifting plate (40) is provided with a sliding lug (41) corresponding to the support column (21), the sliding lug (41) is penetrated by the corresponding support column (21) and is in sliding connection; the buffer spring (42) is arranged between the sliding lug (41) and the top plate (30) and located outside the outer circle of the support column (21).

3. The stamping device for an end cover of an automobile part according to claim 1 or 2, characterized in that: The cross section of the lower turntable (71) is annular structure, the end surface of the lower turntable (71) and the outer circle of the through hole in the middle part are provided with a coaxial first annular groove (711), a plurality of lifting blocks are uniformly arranged on the bottom surface of the stamping platform (20) corresponding to the first annular groove (711), and one end of the lifting block away from the stamping platform (20) is slidingly connected in the first annular groove (711); the cross section of the upper turntable (72) is annular structure, the inner diameter of the through hole in the middle part of the upper turntable (72) is greater than the outer diameter of the hydraulic column (31), a coaxial second annular groove (721) is arranged on the outer circle of the bottom surface of the upper turntable (72), and a plurality of supporting blocks are uniformly arranged on the end surface of the lifting plate (40) corresponding to the second annular groove (721), and one end of the supporting block away from the lifting plate (40) is slidingly connected in the second annular groove (721).

4. The stamping device for an end cover of an automobile part according to claim 3, characterized in that: The cleaning mechanism comprises a sliding support (731), a positioning seat (732), a cleaning base (733), an upper cleaning block (734), a lower cleaning block (735) and a driving mechanism, the sliding support (731) is composed of a sliding positioning plate (7311), a lower sliding rod (7312) and an upper sliding rod (7313), the sliding positioning plate (7311) is slidingly arranged at the end face of the stamping table (20), and the upper end and the lower end of the sliding positioning plate (7311) are respectively fixedly provided with the upper sliding rod (7313) and the lower sliding rod (7312), the length of the upper sliding rod (7313) is greater than that of the lower sliding rod (7312), the stamping table (20) is provided with a first horizontal groove (22) corresponding to the lower sliding rod (7312), the lower turntable (71) is provided with a first arc-shaped groove (712) corresponding to the lower sliding rod (7312), and one end of the lower sliding rod (7312) away from the sliding positioning plate (7311) penetrates the first horizontal groove (22) and the first arc-shaped groove (712) in sequence and is slidingly connected, the lifting plate (40) is provided with a second horizontal groove (44) corresponding to the upper sliding rod (7313), the upper turntable (72) is provided with a second arc-shaped groove (722) corresponding to the upper sliding rod (7313), and one end of the upper sliding rod (7313) away from the sliding positioning plate (7311) penetrates the second horizontal groove (44) and the second arc-shaped groove (722) in sequence and is slidingly connected; the positioning seat (732) is fixedly arranged on the side surface of one side of the sliding positioning plate (7311) close to the lower die (60), and the cleaning base (733) is fixedly arranged at one end of the positioning seat (732) away from the sliding positioning plate (7311), the upper and lower end faces of the cleaning base (733) are respectively clamped with the upper cleaning block (734) and the lower cleaning block (735), the longitudinal sections of the upper cleaning block (734) and the lower cleaning block (735) are respectively provided with a profiling structure corresponding to the punch of the upper die (50) and the recess of the lower die (60), and the upper cleaning block (734) and the lower cleaning block (735) are controlled by the driving mechanism arranged in the cleaning base (733); the upper surface of the upper cleaning block (734) and the lower surface of the lower cleaning block (735) are provided with cleaning bristles; the upper die (50) is rotationally arranged at the bottom surface of the lifting plate (40), and the lower die (60) is rotationally arranged at the end face of the stamping table (20).

5. The stamping device for an end cover of an automobile part according to claim 4, characterized in that: The end portion of the lower sliding rod (7312) located below the lower turntable (71) is provided with a first limiting block, and the end portion of the upper sliding rod (7313) located above the upper turntable (72) is provided with a second limiting block.

6. A punch press for an end cover of an automobile part according to claim 4, wherein: The driving mechanism comprises a conical slider (7361), a sliding push rod (7362), a sliding sleeve (7363), a motor (7364) and a screw rod (7365), the cleaning base (733) is internally provided with a cavity, and the conical slider (7361) is slidably arranged in the cavity; the longitudinal section of the conical slider (7361) is in the shape of an isosceles trapezoid with a diameter gradually decreasing from the sliding positioning plate (7311) to the downward mold (60); the upper and lower inclined surfaces of the conical slider (7361) are connected with the upper cleaning block (734) and the lower cleaning block (735) through the sliding push rod (7362) respectively; one end of the sliding push rod (7362) is slidably connected with the inclined surface of the conical slider (7361), and the other end of the sliding push rod (7362) penetrates through the corresponding side wall of the cavity, and is fixedly connected with the upper cleaning block (734) or the lower cleaning block (735); the coaxial sliding sleeve (7363) is fixedly arranged on the side surface of the conical slider (7361) close to the sliding positioning plate (7311); the middle part of the positioning seat (732) is provided with a sliding hole penetrating through the positioning seat (732) itself; one end of the sliding sleeve (7363) away from the conical slider (7361) penetrates through the corresponding side wall of the cavity, and is slidably arranged in the sliding hole; the motor (7364) is fixedly arranged on the side surface of the sliding positioning plate (7311) away from the downward mold (60) and corresponding to the sliding sleeve (7363); the output end of the motor (7364) is fixedly provided with the screw rod (7365), and one end of the screw rod (7365) away from the motor (7364) penetrates through the corresponding sliding positioning plate (7311) and is connected with the corresponding sliding sleeve (7363); the screw rod (7365) is rotationally connected with the sliding positioning plate (7311) and is threadedly connected with the sliding sleeve (7363).

7. The stamping device for an end cover of an automobile part according to claim 6, characterized in that: The motor (7364) is provided with a protective shell, and the protective shell is fixedly connected with the side surface of the sliding positioning plate (7311).

8. A punch press for an end cover of an automobile part according to claim 6, wherein: The upper mold (50) is rotationally connected with the bottom surface of the lifting plate (40) through the coaxially arranged rotating seat (43), specifically: the rotating seat (43) is rotationally clamped in the middle part of the bottom surface of the lifting plate (40), and one end of the rotating seat (43) away from the lifting plate (40) is provided with the upper mold (50); the middle axes of the lifting plate (40), the rotating seat (43) and the upper mold (50) are collinear, and the outer diameter of the rotating seat (43) is smaller than the maximum outer diameter of the upper mold (50); the downward mold (60) is rotationally connected with the end surface of the stamping table (20) through the coaxially arranged rotating shaft (61), specifically: the bottom end of the rotating shaft (61) is rotationally connected with the end surface of the base (10), one end of the rotating shaft (61) away from the base (10) penetrates through the middle through hole of the lower turntable (71) and the stamping table (20) in sequence, and then is connected with the bottom surface of the downward mold (60); the middle axes of the rotating shaft (61), the stamping table (20) and the downward mold (60) are collinear.

9. The stamping device for an end cover of an automobile part according to claim 8, characterized in that: The lower rotating disc (71) is controlled to rotate by a first ratchet mechanism arranged on the rotating shaft (61), the first ratchet mechanism comprising a positioning disc (62), a plurality of first pawls (63) and first elastic sheets (64), the middle through hole of the lower rotating disc (71) being arranged as a ratchet hole, the positioning disc (62) being fixedly sleeved on the outer wall of the rotating shaft (61) corresponding to the lower rotating disc (71) and the outer diameter of the positioning disc (62) being smaller than the minimum inner diameter of the ratchet hole of the lower rotating disc (71), the plurality of first pawls (63) and first elastic sheets (64) being uniformly distributed on the end face of the positioning disc (62) around the central axis of the rotating shaft (61), one end of the first pawl (63) being rotatably connected to the end face of the positioning disc (62) through a positioning support rod, the other end being arranged corresponding to the ratchet hole of the lower rotating disc (71), the first elastic sheet (64) being arranged on the inner side of the end of the first pawl (63) away from the positioning support rod, and the end of the first elastic sheet (64) away from the first pawl (63) being fixedly connected to the end face of the positioning disc (62); the upper rotating disc (72) is connected with the rotating seat (43) through a second ratchet mechanism, the second ratchet mechanism comprising a rotating block (45), a plurality of second pawls (46) and second elastic sheets (47), the middle through hole of the upper rotating disc (72) being arranged as a ratchet hole and the rotation direction of the ratchet hole of the upper rotating disc (72) being opposite to that of the ratchet hole of the lower rotating disc (71), the rotating block (45) being rotatably connected to the middle part of the end face of the lifting plate (40) and the bottom face of the rotating block (45) being fixedly connected to the top face of the rotating seat (43), the rotating block (45) and the rotating seat (43) being coaxially arranged and a connecting groove being formed in the top part of the rotating block (45) corresponding to the hydraulic column (31), the output end of the hydraulic column (31) being rotatably connected to the end face of the connecting groove, the outer diameter of the rotating block (45) being smaller than the minimum inner diameter of the ratchet hole of the upper rotating disc (72), the plurality of second pawls (46) and second elastic sheets (47) being uniformly distributed on the end face of the rotating block (45) around the central axis thereof, one end of the second pawl (46) being rotatably connected to the end face of the rotating block (45) through a positioning support rod, the other end being arranged corresponding to the ratchet hole of the upper rotating disc (72), the second elastic sheet (47) being arranged on the inner side of the end of the second pawl (46) away from the positioning support rod, and the end of the second elastic sheet (47) away from the second pawl (46) being fixedly connected to the end face of the rotating block (45).The lower turntable (71) and the upper turntable (72) are driven through a synchronous mechanism, the outer wall of the lower turntable (71) and the upper turntable (72) is fixedly sleeved with an outer gear ring, the synchronous mechanism comprises a first gear (701), a synchronous shaft (702) and a second gear (703), the synchronous shaft (702) is arranged in a different position from the two groups of cleaning mechanisms, the bottom end of the synchronous shaft (702) is rotationally arranged on the end face of the base (10) and located at the outer ring of the lower turntable (71), the outer wall of the synchronous shaft (702) is fixedly sleeved with the first gear (701) corresponding to the lower turntable (71), and the first gear (701) is engaged with the outer gear ring of the lower turntable (71); the upper end of the synchronous shaft (702) is sequentially penetrated through the stamping table (20) and the lifting plate (40) and rotationally connected with the bottom face of the top plate (30), the outer wall of the synchronous shaft (702) is rotationally connected with the stamping table (20) and slidingly connected with the lifting plate (40), and the outer wall of the synchronous shaft (702) is fixedly sleeved with the second gear (703) corresponding to the upper turntable (72), and the second gear (703) is engaged with the outer gear ring of the upper turntable (72).

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