A processing and forming mold for automobile parts

Abstract

The present invention provides a processing and forming die for automobile parts, which relates to the field of stamping dies, including a base, a support platform, a top plate, a stamping cylinder, an upper die assembly, a lower die assembly, a lifting and rotating assembly and a positioning assembly; the outer ring of the end face of the base is provided with a support platform through a plurality of evenly distributed support columns, the outer ring of the end face of the support platform is evenly provided with a plurality of positioning brackets, and a top plate is provided between the top ends of the plurality of positioning brackets; a stamping cylinder is provided in the middle of the top plate, and an upper die assembly is provided at the output end of the stamping cylinder located at the lower side of the top plate; a through hole is provided in the middle of the support platform corresponding to the upper die assembly, and a lower die assembly is provided at the through hole, and a lifting and rotating assembly and a positioning assembly are provided at the outer ring of the support platform located at the lower die assembly. The processing and forming die can not only fix the stamping blank and the forming die cavity during the stamping process, but also complete demoulding after the stamping is completed, thereby improving production efficiency and reducing product defective rate.

Description

Technical Field

[0001] The invention relates to the technical field of stamping dies, in particular to a processing and forming die for automobile parts. Background Art

[0002] Stamping is a processing method that uses a press to apply external force to various types of plates, strips, pipes, profiles, etc. placed on a mold, causing them to be squeezed and produce plastic deformation, separation, etc., so as to obtain workpieces of specific shapes and sizes. In the automobile production process, there are a large number of parts obtained by stamping technology, such as: spring trays, spring seats, fuel tank end covers, dust covers, ears, brackets, baffles, radiators, car sounds, flanges, etc. Stamping and forging are both plastic processing (or pressure processing), and they are collectively called forging.

[0003] However, in the current stamping process of automobile parts, since the stamping blank is stamped into the concave cavity, due to the extrusion force, the irregular shape of the forming cavity and the temperature of the stamping blank itself (such as some blanks need to be heated before stamping to ensure better plastic deformation of the parts), there will be problems such as adhesion between the molded parts and the mold cavity wall (mainly the molding groove) or the molded parts are stuck in the molding cavity (mainly the molding groove), which makes demolding difficult and usually requires manual demolding. This demolding method interrupts the production rhythm, affects the stamping of subsequent parts, reduces stamping efficiency, and has low stamping fluency; second, forced demolding is prone to deformation and damage of molded parts, resulting in molded parts getting stuck in the mold cavity and increasing product defective rates; third, manual demolding increases additional labor productivity and increases production costs, and is prone to uncontrollable safety risks (such as: personnel scratches during manual forced demolding). At the same time, the blanks used for stamping of some automobile parts are thin and wide. During the stamping process, due to the central extrusion force, problems such as curling, deformation, and folding are prone to occur on the outside. First, it affects the quality of the formed parts and increases the product defect rate. Second, the thickness of the curling and folding is easy to affect the entire stamping process, resulting in damage to the stamping die and reduced stamping efficiency. In addition, in the stamping process, in order to avoid the displacement of the parts during the stamping process, the existing stamping device usually uses a fixed clamping device to fix the stamping blank, which not only increases the equipment cost and reduces the equipment use space, but also needs to be disassembled after the stamping is completed, which is not convenient for manual material collection and discharge, and the stamping efficiency is low; if the fixed clamping device is not used, the blank, die, etc. during the stamping process will be affected by the extrusion force and friction force, and a certain displacement will occur, which will cause stamping defects and increase the product failure rate. Summary of the invention

[0004] In view of the problems existing in the above-mentioned prior art, the purpose of the present invention is to provide a processing and forming mold for automobile parts, which can not only effectively fix the stamping blank and the forming cavity during the stamping process to avoid relative displacement between them during the stamping process and ensure the stamping accuracy, but also can perform automatic and mechanized demolding after the stamping is completed, avoiding the problems of long time-consuming manual demolding, low production efficiency, high labor cost, high defective rate, etc.

[0005] The purpose of the present invention is achieved through the following technical solutions:

[0006] A processing and forming die for automobile parts comprises a base, a support platform, a top plate, a stamping cylinder, an upper die assembly, a lower die assembly, a lifting and rotating assembly and a positioning assembly; a support platform is arranged on the outer ring of the end face of the base through a plurality of evenly distributed support columns, and the support platform and the base are parallel to each other; a plurality of positioning brackets are evenly arranged on the outer ring of the end face of the support platform; a top plate is arranged between the top ends of the plurality of positioning brackets, and the top plate and the support platform are parallel to each other; a stamping cylinder is arranged in the middle of the top plate, and an upper die assembly is arranged at the output end of the stamping cylinder located on the lower side of the top plate; a through hole is opened in the middle of the support platform corresponding to the upper die assembly, and a lower die assembly is arranged at the through hole corresponding to the upper die assembly; a lifting and rotating assembly is arranged on the outer ring of the support platform located at the lower die assembly, and a positioning assembly is arranged on the outer ring of the support platform located at the lower die assembly.

[0007] Based on further optimization of the above scheme, the upper mold assembly includes a lifting plate, a forming punch, a limit ring and multiple lifting mechanisms. The lifting plate is fixedly arranged at the output end of the stamping cylinder and the lifting plate and the top plate are parallel to each other, and the forming punch is arranged in the middle of the bottom surface of the lifting plate; the lifting plate is located at the outer ring of the forming punch and multiple lifting mechanisms are evenly arranged around the central axis of the forming punch, the lifting mechanism includes a lifting rod, a limit block and a first spring, the lifting rod longitudinally penetrates the corresponding part of the lifting plate and the end thereof (i.e., the lifting rod) located on the upper side of the lifting plate is fixedly provided with a limit block, the bottom ends of the multiple lifting rods are fixedly connected to the top surface of the same limit ring, and the first spring is arranged between the limit ring and the lifting plate and located at the outer ring of the lifting rod; the limit ring is located at the lower side of the forming punch (in the initial position) and the inner diameter of the limit ring is larger than the maximum outer diameter of the forming punch.

[0008] Based on the further optimization of the above scheme, the lower mold assembly includes a mold body, a positioning block and a unloading assembly, the top surface and the bottom surface of the mold body are respectively provided with molding grooves corresponding to the molding punch, and the molding grooves on both sides are symmetrically arranged; positioning blocks are respectively arranged in the middle of the left and right sides of the mold body, and the maximum length between the two positioning blocks is greater than the outer diameter of the through hole, which is used to clamp the mold body on the end surface of the support platform; a mold cavity is opened in the center of the mold body and a unloading assembly is arranged in the mold cavity, the unloading assembly includes two sliding plates, an eccentric cylinder, a rotating shaft, a cam and two sets of lifting mechanisms, the two sliding plates are connected by a plurality of evenly distributed connecting brackets, and the side walls of the two sliding plates away from each other are respectively slidably connected to the corresponding inner wall of the mold cavity, and an eccentric cylinder (that is, the side walls of the eccentric cylinder are respectively slidably arranged between the two sliding plates and located on the inner circle of the connecting bracket The eccentric cylinder is slidably connected to the side surface close to the corresponding sliding plate), the longitudinal cross-section of the eccentric cylinder is an elliptical ring structure, a rotating shaft is rotatably arranged between the centers of the two sliding plates (that is, the central axis of the rotating shaft is colinear with the center connection line of the two sliding plates), and the outer wall of the rotating shaft is fixedly sleeved with a cam, and the protruding end of the cam contacts the inner wall of the eccentric cylinder in the short axis direction; the outer walls on both sides of the eccentric cylinder in the short axis direction and corresponding to the two forming grooves are respectively provided with jacking mechanisms, the jacking mechanism includes a push rod, a lifting block and a second spring, one end of the push rod is fixedly connected to the outer wall of the eccentric cylinder, and the other end of the push rod passes through the mold body between the mold cavity and the forming groove and is located in the forming groove, a lifting block is fixedly arranged on the end of the push rod away from the eccentric cylinder, and a slot is provided on the bottom surface of the forming groove corresponding to the lifting block, and a second spring is arranged between the eccentric cylinder and the mold cavity and at the outer ring of the push rod.

[0009] Based on further optimization of the above solution, the depth of the slot is greater than the thickness of the lifting block.

[0010] Based on further optimization of the above solution, both ends of the rotating shaft are respectively fixedly connected to the motor output shafts fixedly arranged on the side surfaces opposite to the sliding plate, thereby realizing the rotation of the rotating shaft.

[0011] Based on the further optimization of the above scheme, the lifting and rotating assembly includes a lifting plug plate, a rotating block, a lifting rod and a supporting slider. The lifting plug plate is arranged on the left and right sides of the mold body corresponding to the positioning block, and a rotating block is arranged on the side of the positioning block away from the mold body. The rotating block passes through the middle of the corresponding lifting plug plate and is rotatably connected. The rotating block is coaxially arranged with the lifting plug plate; a slot is provided at the support platform corresponding to the lifting plug plate, and the lifting plug plate is slidably engaged in the slot; a lifting rod is fixedly arranged at the bottom end of the lifting plug plate, and the end of the lifting rod away from the lifting plug plate passes through the support platform; the supporting slider is arranged between the base and the supporting platform (that is, the supporting slider is also two groups), and the bottom surface of the supporting slider is slidably connected to the end surface of the base, and the side of the supporting slider away from each other is arranged as an inclined surface structure inclined from the middle of the support platform to the outer circle of the base, and an inclined groove is provided on the inclined surface structure, there is a horizontal groove at the bottom of the inclined groove, and the horizontal groove is smoothly connected to the inclined groove, and the end of the lifting rod away from the lifting plug plate is slidably engaged in the corresponding inclined groove or horizontal groove.

[0012] Based on further optimization of the above scheme, the rotation of the rotating block is controlled by a gear mechanism arranged on the lifting plug plate. The gear mechanism includes a rotating gear, a gear rod and a driving gear. The rotating gear is fixedly sleeved on the outer wall of the rotating block. The gear rod is arranged on the upper side of the rotating gear and the outer wall of the gear rod corresponds to the rotating gear and the driving gear is fixedly sleeved on the driving gear, and the driving gear is meshed with the rotating gear; the two ends of the gear rod respectively penetrate the corresponding side walls of the lifting plug plate and are rotatably connected. One end of the gear rod is connected to the output shaft of the motor arranged on the outer wall of the lifting plug plate to control the rotation of the driving gear, and the other end of the gear rod is rotatably connected to the counterweight block arranged on the outer wall of the lifting plug plate to balance the weight of the lifting plug plate.

[0013] Based on the further optimization of the above scheme, the positioning assembly includes a clamping block, an insert block, a latch, a driving connecting rod and a connecting block. The clamping blocks are evenly arranged on the outer circle of the positioning block around the central axis of the mold body, and two of the clamping blocks are respectively arranged corresponding to the two positioning blocks. The bottom surface of the clamping block is slidably connected to the end surface of the support platform. The inner walls of the two clamping blocks corresponding to the positioning blocks are fixed with insert blocks, and the outer walls of the two positioning blocks (that is, the side walls away from the mold body) correspond to the insert blocks to open positioning grooves that cooperate with them (that is, the insert blocks); the inner wall of the clamping block that is out of position with the positioning block is fixed with latches (except that the length of the latch is greater than the length of the latch, their shapes, sizes, etc. are the same), and the outer wall of the mold body corresponds to the latch to open a positioning groove that cooperates with it (that is, the latch); a driving connecting rod is fixedly arranged at the bottom of the clamping block, and the driving connecting rod The end away from the clamping block passes through the support platform and is slidably connected to the end surface of the base; the inner wall of the bottom end of the driving connecting rod of the clamping block corresponding to the positioning block is fixedly connected to the corresponding supporting sliding block through the connecting block, thereby driving the movement of the supporting sliding block by sliding the driving connecting rod; the driving connecting rod is driven by a rotating disk arranged on the bottom surface of the support platform, the rotating disk is coaxially arranged with the mold body and it (i.e. the rotating disk) is rotatably arranged on the bottom surface of the support platform, the rotating disk is an annular structure and its inner wall is located on the outer ring of the lifting rod (to avoid interference between the rotating disk and the lifting rod), the rotating disk is provided with an arc-shaped slide groove corresponding to the driving connecting rod, and the support platform is provided with a horizontal slide groove corresponding to the driving connecting rod, the driving connecting rod passes through the corresponding horizontal slide groove and the arc slide groove from top to bottom in sequence, and the outer wall of the driving connecting rod is slidably connected with the corresponding horizontal slide groove and the inner wall of the arc slide groove respectively.

[0014] Based on further optimization of the above scheme, the rotation of the rotating disk is controlled by a motor gear mechanism arranged on the end face of the base. The motor gear mechanism specifically includes a motor fixedly arranged on the end face of the base and a control gear sleeved on the outer wall of the motor output shaft, and the control gear and the support column are arranged in an offset manner; the outer wall of the rotating disk is fixedly sleeved with an external gear ring and the external gear ring is meshed with the control gear.

[0015] Based on the further optimization of the above scheme, a collecting groove is slidably set on the end surface of the base between the supporting sliders, and the collecting groove is set corresponding to the through hole for collecting the molded parts after unloading; the inner wall of the collecting groove is filled with sponge to protect the unloaded molded parts.

[0016] The following are the technical effects that the present invention has:

[0017] The present application realizes the positioning of the stamping blank by moving the upper die assembly and using the limit ring and multiple lifting mechanisms to first contact the outer ring of the stamping blank surface during the descent process, thereby avoiding the problems of warping, curling, folding, etc. of the outer ring of the blank caused by the extrusion force during the stamping process, and ensuring the stamping quality. In addition, the present application utilizes the cooperation between the lifting and rotating assembly and the lower die assembly to complete the lifting and flipping of the die body after stamping, so as to flip the stamped parts into the collection tank, which is convenient for the unloading and collection of the stamped parts; at the same time, the unloading mechanism composed of the sliding plate, the eccentric cylinder, the rotating shaft, the cam and the lifting mechanism not only utilizes the change of the center of gravity of the unloading mechanism after flipping to eject the molded parts, but also forms repeated vibrations on the molded parts through the reciprocating movement of the eccentric cylinder, so as to utilize the vibration to realize the separation between the molded parts and the molding groove, avoiding the problems of bending and deformation of the parts caused by the lifting force applied to the molded parts, effectively ensuring the quality of the molded parts during the unloading process, and avoiding the problems of damage and deformation caused by unloading. In addition, the present application realizes hard limiting of the rotation, offset and other directions of the mold body during the stamping process through the cooperation of the lower mold assembly and the positioning assembly, ensuring the stability of the mold cavity and the relative positioning between the mold cavity and the stamping blank, thereby ensuring the stamping quality and improving the stamping qualification rate of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the processing and forming mold in an embodiment of the present invention.

[0019] Figure 2 for Figure 1 A partial enlarged view of middle A.

[0020] Figure 3 for Figure 1 A partial enlarged view of B.

[0021] Figure 4 for Figure 3 EE section view.

[0022] Figure 5 for Figure 1 CC section view.

[0023] Figure 6 for Figure 5 A partial enlarged view of F in the middle.

[0024] Figure 7 for Figure 5 GG section view.

[0025] Figure 8 for Figure 7 A partial enlarged view of H in the figure.

[0026] Fig. 9for Figure 1 DD section view.

[0027] Among them, 10, base; 11, support column; 12, collection tank; 13, control gear; 20, support platform; 21, positioning bracket; 22, through hole; 23, horizontal slide; 30, top plate; 40, stamping cylinder; 51, lifting plate; 52, forming punch; 53, limiting ring; 541, lifting rod; 542, limiting block; 543, first spring; 61, mold body; 601, molding groove; 602, mold cavity; 62, positioning block; 631, sliding plate; 6 310, connecting bracket; 632, eccentric cylinder; 633, rotating shaft; 634, cam; 6351, push rod; 6352, lifting block; 6353, second spring; 71, lifting plug plate; 72, rotating block; 721, rotating gear; 722, gear rod; 723, driving gear; 73, lifting rod; 74, supporting slider; 81, clamping block; 82, insert block; 83, latch; 84, driving connecting rod; 85, connecting block; 86, rotating disk; 860, arc-shaped slide groove. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] Embodiment 1:

[0030] A processing and forming die for automobile parts, referring to Figure 1 As shown: it includes a base 10, a support platform 20, a top plate 30, a stamping cylinder 40, an upper mold assembly, a lower mold assembly, a lifting and rotating assembly and a positioning assembly; the outer ring of the end surface of the base 10 is provided with a support platform 20 through a plurality of uniformly distributed support columns 11 (that is, the upper and lower ends of the support columns 11 are respectively fixedly connected to the bottom surface of the support platform 20 and the end surface of the base 10, and at the same time, the number of the support columns 11 is generally 5 to 10, see Fig. 9 As shown, in this embodiment, 6 are used) and the support platform 20 and the base 10 are parallel to each other (as shown in FIG. Figure 1 As shown in FIG. 1 ), a plurality of positioning brackets 21 are evenly arranged on the outer ring of the end surface of the support platform 20 (the number of the positioning brackets 21 is set according to the actual situation, generally 3 to 5, see Figure 7 As shown, in this embodiment, four positioning brackets 21 are used. A top plate 30 is arranged between the top ends of the multiple positioning brackets 21, and the top plate 30 and the support platform 20 are parallel to each other (such as Figure 1As shown); a stamping cylinder 40 is arranged in the middle of the top plate 30 (the stamping cylinder 40 can be a conventional hydraulic cylinder in the art, and only needs to meet the purpose of starting the lifting plate 51 to perform stable up and down lifting. In this embodiment, the specific model and structure of the stamping cylinder 40 are not limited), and an upper mold assembly is arranged at the output end of the stamping cylinder 40 located at the lower side of the top plate 30.

[0031] The upper mold assembly includes a lifting plate 51, a forming punch 52, a limit ring 53 and multiple lifting mechanisms. The lifting plate 51 is fixedly arranged at the output end of the stamping cylinder 40 and the lifting plate 51 is parallel to the top plate 30. The forming punch 52 is arranged in the middle of the bottom surface of the lifting plate 51 (the forming punch 52 is arranged according to the actual forming cavity); the lifting plate 51 is located at the outer ring of the forming punch 52 and multiple lifting mechanisms are evenly arranged around the central axis of the forming punch 52 (the number of lifting mechanisms is generally 4 to 8 groups, and 6 groups of lifting mechanisms are used in this embodiment). The lifting mechanism includes a lifting rod 541, a limit block 542 and a first spring 543. The lifting rod 541 longitudinally penetrates the corresponding part of the lifting plate 51 and the limit block 542 is fixedly arranged at the end thereof (i.e., the lifting rod 541) located on the upper side of the lifting plate 51 (such as Figure 1 As shown in the figure, the bottom ends of the plurality of lifting rods 541 are fixedly connected to the top surface of the same limiting ring 53 (the limiting ring 53 is a ring structure), and a first spring 543 is arranged between the limiting ring 53 and the lifting plate 51 and located at the outer ring of the lifting rod 541 (that is, the upper and lower ends of the first spring 543 are respectively fixedly connected to the bottom surface of the lifting plate 51 and the top surface of the limiting ring 53, and the first spring 543 is coaxially arranged on the outer ring of the corresponding lifting rod 541); the limiting ring 53 is located at the lower side of the forming punch 52 (at the initial position) and the inner diameter of the limiting ring 53 is larger than the maximum outer diameter of the forming punch 52 (as shown in the figure). Figure 1 As shown, interference between the forming punch 52 and the limiting ring 53 is avoided).

[0032] A through hole 22 is provided in the middle of the support platform 20 corresponding to the upper mold assembly (specifically, the forming convex mold 52), and a lower mold assembly is provided at the through hole 22 corresponding to the upper mold assembly. The lower mold assembly includes a mold body 61, a positioning block 62 and a discharge assembly. The top surface and the bottom surface (i.e. Figure 2 The upper and lower sides shown in FIG. 5A and FIG. 5B respectively correspond to the forming convex mold 52 to form a forming groove 601, and the forming grooves 601 on both sides are symmetrically arranged (as shown in FIG. Figure 2 As shown); mold body 61 (as Figure 1 or Figure 2 Positioning blocks 62 are respectively arranged at the middle of the left and right sides of the support platform 20, and the maximum length between the two positioning blocks 62 is greater than the outer diameter of the through hole 22, so as to clamp the mold body 61 on the end surface of the support platform 20 (see Figure 1As shown, the mold body 61 is positioned and supported on the end surface of the support platform 20 by contacting the bottom surface of the positioning block 62 with the end surface of the support platform 20 outside the through hole 22); a mold cavity 602 (such as Figure 2 As shown in FIG. 6 , a discharge assembly is arranged in the mold cavity 602, and the discharge assembly includes two sliding plates 631, an eccentric cylinder 632, a rotating shaft 633, a cam 634 and two sets of lifting mechanisms. The two sliding plates 631 are connected by a plurality of evenly distributed connecting brackets 6310 (combined with Figure 5 and Figure 6 As shown, the number of connecting brackets 6310 is set according to the actual situation, and only needs to meet the purpose of synchronous sliding in the same direction between the two sliding plates 631; see Figure 6 As shown, in this embodiment, the sliding plate 631 Figure 6 The left and right sides are respectively provided with a row of bracket groups, each row of bracket groups includes 5 connecting brackets 6310) and the side walls of the two sliding plates 631 away from each other are respectively connected to the inner wall of the corresponding mold cavity 602 (i.e. Figure 2 Left and right inner walls as shown, or Figure 6 The front and rear inner walls shown in the figure are slidably connected, and an eccentric cylinder 632 (ie, the eccentric cylinder 632 is as shown in the figure) is slidably arranged between the two sliding plates 631 and located in the inner circle of the connecting bracket 6310. Figure 2 As shown in the left and right side walls, or as Figure 6 The front and rear side walls shown, or Figure 8 The upper and lower side walls shown are respectively slidably connected to the side surfaces of the corresponding sliding plates 631 close to each other), and the longitudinal cross-section of the eccentric cylinder 632 is an elliptical ring structure (see Figure 6 As shown, the long axis of the eccentric cylinder 632 is in the horizontal direction and the short axis is in the vertical direction), a rotating shaft 633 is rotatably arranged between the centers of the two sliding plates 631 (that is, the central axis of the rotating shaft 633 is in line with the center line connecting the two sliding plates 631, combined with Figure 2 and Figure 6 The outer wall of the rotating shaft 633 is fixedly sleeved with the cam 634, and the protruding end of the cam 634 contacts the inner wall of the eccentric cylinder 632 in the short axis direction (see Figure 6 As shown, the two ends of the rotating shaft 633 are respectively fixedly connected to the motor output shaft fixedly arranged on the side opposite to the sliding plate 631 (as shown in FIG. Figure 2As shown), the rotation of the rotating shaft 633 is realized. Lifting mechanisms are respectively arranged on the outer walls of both sides of the eccentric cylinder 632 in the short axis direction and corresponding to the two molding grooves 601. The lifting mechanisms include a push rod 6351, a lifting block 6352 and a second spring 6353. One end of the push rod 6351 is fixedly connected to the outer wall of the eccentric cylinder 632. The other end of the push rod 6351 passes through the mold body 61 between the mold cavity 602 and the molding groove 601 and is located in the molding groove 601. The lifting block 6352 is fixedly arranged on the end of the push rod 6351 away from the eccentric cylinder 632, and a slot is provided on the bottom surface of the molding groove 601 corresponding to the lifting block 6352 (the lifting block 6352 can be slidably engaged in the slot), and the depth of the slot is greater than the thickness of the lifting block 6352 (as shown in FIG. 1 ). Figure 6 As shown, after the upper lifting block 6352 is completely engaged in the slot, there is still a certain margin at the bottom of the slot); the eccentric cylinder 632 and the mold cavity 602 ( Figure 2 or Figure 6 A second spring 6353 is arranged between the upper and lower inner walls) and at the outer ring of the push rod 6351 (that is, the two ends of the second spring 6353 are respectively fixedly connected to the outer wall of the eccentric cylinder 632 and the inner wall of the mold cavity 602, and the second spring 6353 is coaxially arranged on the outer ring of the corresponding push rod 6351).

[0033] The support platform 20 is located at the outer ring of the lower mold assembly and is provided with a lifting and rotating assembly. The lifting and rotating assembly is divided into two groups, which are respectively arranged on the mold body 61 as shown in FIG. Figure 1 The left and right sides shown in the figure include a lifting plug plate 71, a rotating block 72, a lifting rod 73 and a supporting slide block 74. The lifting plug plate 71 is arranged on the left and right sides of the mold body 61 corresponding to the positioning block 62, and a rotating block 72 is arranged on the side of the positioning block 62 away from the mold body 61. The rotating block 72 passes through the middle of the corresponding lifting plug plate 71 and is rotatably connected. The rotating block 72 is coaxially arranged with the lifting plug plate 71 (see Figure 3 The support platform 20 has a slot corresponding to the lifting plug plate 71, and the lifting plug plate 71 is slidably engaged in the slot (as shown); Figure 1 As shown); a lifting rod 73 is fixedly arranged at the bottom end of the lifting plug plate 71, and the end of the lifting rod 73 away from the lifting plug plate 71 passes through the support platform 20; the support slider 74 is arranged between the base 10 and the support platform 20 corresponding to the lifting rod 73 (that is, the support slider 74 is also two groups), and the bottom surface of the support slider 74 is slidably connected to the end surface of the base 10 (refer to Figure 1 As shown, the side of the support sliders 74 that is away from each other is set as an inclined surface structure that is inclined from the middle of the support platform 20 to the outer circle of the base 10 (as shown in FIG. Figure 1As shown, the left support slider 74 is tilted from right to left, and the right support slider 74 is tilted from left to right), and an inclined groove is provided on the inclined surface structure, and there is a horizontal groove at the bottom of the inclined groove, and the horizontal groove is smoothly connected to the inclined groove. The end of the lifting rod 73 away from the lifting plug plate 71 is slidably engaged in the corresponding inclined groove or horizontal groove (that is, the lifting rod 73 can slide in the inclined groove and can slide in the horizontal groove). The rotation of the rotating block 72 is controlled by the gear mechanism set on the lifting plug plate 71, see Figure 4 As shown, the gear mechanism includes a rotating gear 721, a gear rod 722 and a driving gear 723. The rotating gear 721 is fixedly sleeved on the outer wall of the rotating block 72. The gear rod 722 is arranged on the upper side of the rotating gear 721 and the outer wall of the gear rod 722 is fixedly sleeved with the driving gear 723 corresponding to the rotating gear 721. The driving gear 723 is meshed with the rotating gear 721 (and a gear cavity is provided in the lifting plug plate 71 corresponding to the driving gear 723 and the rotating gear 721, as shown in FIG. Figure 4 As shown); both ends of the gear rod 722 respectively penetrate the corresponding side walls of the lifting plug plate 71 and are rotatably connected, one end of the gear rod 722 is connected to the motor output shaft arranged on the outer wall of the lifting plug plate 71, and is used to control the rotation of the driving gear 723, and the other end of the gear rod 722 is rotatably connected to the counterweight block arranged on the outer wall of the lifting plug plate 71, and is used to balance the weight of the lifting plug plate 71 (as shown in FIG. Figure 3 As shown, the counterweight block and the motor for driving the gear rod 722 to rotate are respectively arranged on the outer walls of both sides of the lifting plug plate 71).

[0034] The support table 20 is located at the outer ring of the lower mold assembly to set a positioning assembly, the positioning assembly includes a clamping block 81, an insert block 82, a latch 83, a driving connecting rod 84 and a connecting block 85. The clamping blocks 81 are evenly arranged around the central axis of the mold body 61 on the outer ring of the positioning block 62 (specifically, the outer ring of the lifting plug plate 71). The number of the clamping blocks 81 is generally 4 or 6. In this embodiment, 4 clamping blocks 81 are used. Figure 7 As shown, two clamping blocks 81 are respectively arranged corresponding to the two positioning blocks 62, the bottom surface of the clamping block 81 is slidably connected to the end surface of the support platform 20, and the inner walls of the two clamping blocks 81 corresponding to the positioning blocks 62 are fixed with plugging blocks 82, and the outer walls of the two rotating blocks 72 (i.e., the side walls away from the mold body 61) are provided with positioning grooves (combined with the plugging blocks 82) that match with the plugging blocks 82. Figure 1 and Figure 3 As shown); the inner walls of the two clamping blocks 81 which are out of position with the positioning block 62 (i.e., not corresponding to the positioning block 62) are fixed with latches 83 (except that the length of the latches 83 is greater than the length of the inserting block 82, their shapes, sizes, etc. are the same; at the same time, in order to realize the rotation limit of the mold body 61, the latches 83 and the inserting block 82 are both configured as spline structures, such as Figure 4As shown, the positioning groove is correspondingly configured as a spline groove), and the outer wall of the mold body 61 is provided with a positioning groove (combined with the spline groove) corresponding to the latch 83 and cooperating with it (i.e. the latch 83). Figure 5 and Figure 6 As shown); a driving connecting rod 84 is fixedly arranged at the bottom of the clamping block 81, and the end of the driving connecting rod 84 away from the clamping block 81 passes through the support platform 20 and is slidably connected to the end surface of the base 10; the inner wall of the bottom end of the driving connecting rod 84 of the clamping block 81 corresponding to the positioning block 62 is fixedly connected to the corresponding support slider 74 through a connecting block 85 (see Figure 1 As shown), the driving connecting rod 84 drives the support slider 74 to move by sliding; the driving connecting rod 84 is driven by a rotating disk 86 arranged on the bottom surface of the support platform 20, and the rotating disk 86 is coaxially arranged with the mold body 61 and is rotatably arranged on the bottom surface of the support platform 20. The rotating disk 86 is an annular structure (as shown Fig. 9 shown) and its inner wall is located at the outer ring of the lifting rod 73 (see Figure 1 or Figure 5 As shown, to avoid interference between the rotating disk 86 and the lifting rod 73), the rotating disk 86 has an arc-shaped slide groove 860 corresponding to the driving connecting rod 84, and the support platform 20 has a horizontal slide groove 23 corresponding to the driving connecting rod 84. The driving connecting rod 84 passes through the corresponding horizontal slide groove 23 and the arc-shaped slide groove 860 from top to bottom, and the outer wall of the driving connecting rod 84 is slidably connected with the corresponding horizontal slide groove 23 and the inner wall of the arc-shaped slide groove 860. The rotating disk 86 is controlled to rotate by a motor gear mechanism arranged on the end face of the base 10. The motor gear mechanism specifically includes a motor fixedly arranged on the end face of the base 10 and a control gear 13 sleeved on the outer wall of the motor output shaft. The control gear 13 is arranged unequally with the support column 11 (such as Fig. 9 As shown); the outer wall of the rotating disk 86 is fixedly sleeved with the outer gear ring and the outer gear ring is meshed with the control gear 13.

[0035] The end surface of the base 10 between the supporting slide blocks 74 is slidably provided with a collecting groove 12 (such as Figure 1 As shown in the figure, the collecting groove 12 is arranged corresponding to the through hole 22 for collecting the molded parts after unloading; the inner wall of the collecting groove 12 is filled with sponge to protect the unloading molded parts.

[0036] At the same time, the length of the collecting groove 12 in the direction of the plug block 82 is less than the length thereof (i.e., the collecting groove 12) in the direction of the latch pin 83 (specifically, Figure 1 and Figure 5 As shown, or see Figure 6 as shown).

[0037] It should be noted that the motors specified in this embodiment all adopt conventional motor models and structures in the field. In this embodiment, they only differ in size and setting position, and the rest of the functions are exactly the same. Therefore, they are collectively referred to as motors in this embodiment.

[0038] Embodiment 2:

[0039] As another preferred embodiment of the scheme of the present invention, on the basis of the processing and forming mold described in Example 1, in order to ensure the stable lifting and lowering of the lifting plate 51 and avoid shaking or deviation of the lifting plate 51 during the lifting and lowering process, a plurality of guide rods are evenly arranged on the outer circle of the top surface of the lifting plate 51 and around its axis, and one end of the guide rod away from the lifting plate 51 passes through the top plate 30, and a hard limit portion is provided at the end of the guide rod away from the lifting plate 51 (that is, the end located on the upper side of the top plate 30), which is used to hard limit the downward movement distance of the lifting plate 51.

[0040] Embodiment 3:

[0041] As another preferred embodiment of the scheme of the present invention, on the basis of the processing and forming mold described in Example 1, in order to avoid the stretching and deformation of the stamping blank due to the extrusion pressure of the forming punch 52 after the limiting ring 53 and the mold body 61 fix the stamping blank, a plurality of groups of rotating rollers are evenly arranged on the bottom surface of the limiting ring 53 and around its axis, and the bottom end of the roller is located on the lower side of the bottom surface of the limiting ring 53. During the descending process of the lifting plate 51, the bottom end of the roller contacts the surface of the stamping blank, thereby utilizing the rotation of the roller to reduce the pulling force of the limiting ring 53 on the stamping blank during the stamping process, thereby avoiding problems such as breakage and deformation of the stamping blank.

[0042] Embodiment 4:

[0043] As another preferred embodiment of the scheme of the present invention, on the basis of the processing and forming mold described in Example 1, in order to ensure the stable rotation of the rotating disk 86, two annular slide grooves are coaxially arranged on the top surface of the rotating disk 86 and on the inner and outer circles of the arc-shaped slide groove 860, and two circles of lifting brackets are arranged on the bottom surface of the support platform 20 corresponding to the two annular slide grooves, respectively. The end of the lifting bracket away from the support platform 20 (i.e., the bottom end of the lifting bracket) is clamped in the corresponding annular slide groove and slidably connected, thereby realizing the positioning of the rotating disk 86 and ensuring the relative rotation between the rotating disk 86 and the support platform 20.

[0044] Embodiment 5:

[0045] A method for processing and forming automobile parts, using any one of the processing and forming molds in Embodiments 1 to 4, comprising:

[0046] Step 1, mold positioning: by starting the rotating disk 86 to rotate, the rotating disk 86 drives the clamping block 81 to slide on the surface of the support platform 20 toward the side close to each other through the driving connecting rod 84, the plug block 82 is clamped in the positioning groove of the corresponding rotating block 72, and the latch 83 is clamped in the positioning groove of the corresponding mold body 61 (to achieve the fixation and positioning of the mold body 61, and also to achieve the hard limit of the rotation of the mold body 61; at this time, the molding groove 601 of the cross section of the mold body 61 corresponds to the molding convex mold 52); at this time, the supporting slider 74 follows the driving connecting rod 84 to slide on the end surface of the base 10 toward the side close to each other, thereby forming a support for the bottom surface of the mold body 61 (see Figure 1 As shown in the figure), the rigid support of the mold body 61 is completed by supporting the slider 74 and the positioning block 62.

[0047] Step 2: Part processing and forming: First, place the stamping blank (i.e., plate) on the end face of the mold body 61; then, start the stamping cylinder 40 so that the lifting plate 51 drives the forming punch 52 and the limiting ring 53 to move downward at the same time, and the bottom surface of the limiting ring 53 first contacts the end face of the stamping blank located on the outer ring of the forming groove 601, thereby achieving the fixation and positioning of the stamping blank; as the lifting plate 51 continues to move downward, the lifting rod 541 moves upward relative to the lifting plate 51, and the first spring 543 is compressed, thereby increasing the clamping force of the limiting ring 53 on the forming plate. At the same time, the bottom of the forming punch 52 contacts the end face of the stamping blank and the stamping process is carried out (in this process, due to the limitation of the outer ring of the stamping blank by the limiting ring 53, curling, warping and other problems during the stamping process are effectively avoided).

[0048] Step 3: Unloading of formed parts: After stamping and cooling, the lifting plate 51 is started to move upward by the stamping cylinder 40. The lifting plate 51 first drives the forming punch 52 to move upward and separate the forming punch 52 from the formed part (in this process, due to the elastic force of the first spring 543 and the gravity of the limiting ring 53 itself, the formed part will not stick to the forming punch 52); as the lifting plate 51 continues to move upward, the limiting ring 53 is separated from the outer ring surface of the formed part, the upper mold assembly is reset, and the stamping cylinder 40 stops starting; thereafter, the driving connecting rod 84 drives the clamping block 81 to slide on the surface of the support platform 20 toward the side away from each other through the rotation of the rotating disk 86, and the plug block 82 and the latch pin 83 are respectively separated from the corresponding positioning grooves, thereby releasing the limit on the mold body 61; at the same time, the driving connecting rod 84 drives the supporting slider 74 to slide on the end surface of the base 10 toward the side away from each other (due to the sliding groove on the inclined surface of the supporting slider 74 The support slide 74 is composed of an inclined groove and a horizontal groove. Therefore, during the sliding process of the support slide 74, the lifting rod 73 first slides horizontally in the horizontal groove to ensure that the plug block 82 and the latch pin 83 are completely separated from the corresponding positioning groove, and then the lifting rod 73 slides to the inclined groove for sliding). The support slide 74 gradually drives the lifting plug plate 71 to move upward through the lifting rod 73, thereby using the rotating block 72 and the positioning block 62 to drive the mold body 61 to move upward until the bottom of the mold body 61 is separated from the through hole 22 and is located on the upper side of the support platform 20, and then the rotation of the rotating disk 86 is stopped; thereafter, the rotating blocks 72 on both sides are driven to rotate simultaneously through the gear mechanism, thereby using the positioning block 62 to drive the mold body 61 to rotate until the stamped part corresponds to the collecting groove 12 (that is, the mold body 61 rotates 180°). In this process, due to the overall gravity of the unloading assembly, it has a downward trend in the mold cavity 602, thereby lifting the molded part. However, due to the special-shaped structure of the molding cavity and the extrusion force, the molded part and the groove are stuck and stuck too tightly, and the unloading assembly cannot completely eject the molded part by its own gravity alone. In addition, the continuous application of the lifting force is likely to cause the contact between the molded part and the lifting block 6352 to be deformed and completely. Therefore, after the mold body 61 is turned 180 degrees, the cam 634 is driven to rotate by the driving shaft 633, such as Figure 6 As shown: the cam 634 is disengaged from the eccentric cylinder 632 during the rotation process Figure 6 The upper side of the inner wall shown gradually presses against the eccentric cylinder 632 Figure 6 The lower side of the inner wall shown makes Figure 6 The upper and lower lifting blocks 6352 shown in the figure move downward a short distance at the same time. Figure 6 The upper second spring 6353 shown is stretched, Figure 6 The lower second spring 6353 shown is compressed, and as the cam 634 continues to rotate, the protruding end of the cam 634 is separated from the eccentric cylinder 632. Figure 6At the bottom end shown in FIG. 1 , due to the elastic force of the second spring 6353, the upper and lower lifting blocks 6352 are simultaneously moved Figure 6 As shown, the upward movement Figure 6 The parts in the upper molding groove 601 are vibrated, and the vibration is cyclically performed so that the parts are separated from the molding groove 601 and fall into the collecting tank 12.

[0049] Step 4: Repeat steps 1 to 3 to complete continuous parts stamping and unloading collection without excessive human involvement, thus improving the overall smoothness of the stamping process.

Claims

1. A processing and forming mold for automobile parts, characterized in that: The invention comprises a base (10), a support platform (20), a top plate (30), a stamping cylinder (40), an upper mold assembly, a lower mold assembly, a lifting and rotating assembly and a positioning assembly; the support platform (20) is arranged on the outer ring of the end surface of the base (10) through a plurality of evenly distributed support columns (11), and the support platform (20) and the base (10) are parallel to each other; a plurality of positioning brackets (21) are evenly arranged on the outer ring of the end surface of the support platform (20); a top plate (30) is arranged between the top ends of the plurality of positioning brackets (21), and the top ends of the plurality of positioning brackets (21) are arranged between the top ends of the plurality of positioning brackets (21). The plate (30) and the support platform (20) are parallel to each other; a punching cylinder (40) is arranged in the middle of the top plate (30), and an upper mold assembly is arranged at the output end of the punching cylinder (40) located at the lower side of the top plate (30); a through hole (22) is provided in the middle of the support platform (20) corresponding to the upper mold assembly, and a lower mold assembly is arranged at the through hole (22) corresponding to the upper mold assembly, a lifting and rotating assembly is arranged at the outer ring of the support platform (20) located at the lower mold assembly, and a positioning assembly is arranged at the outer ring of the support platform (20) located at the lower mold assembly; The upper mold assembly comprises a lifting plate (51), a forming punch (52), a limiting ring (53) and a plurality of lifting mechanisms. The lifting plate (51) is fixedly arranged at the output end of the punching cylinder (40) and the lifting plate (51) and the top plate (30) are parallel to each other. The forming punch (52) is arranged in the middle of the bottom surface of the lifting plate (51). The lifting plate (51) is located at the outer ring of the forming punch (52) and a plurality of lifting mechanisms are evenly arranged around the central axis of the forming punch (52). The lifting mechanisms comprise a lifting rod (541), a limiting block (542) and a first lifting mechanism. a spring (543), the lifting rod (541) longitudinally penetrates the corresponding part of the lifting plate (51) and a limit block (542) is fixedly arranged at the end of the lifting rod (541) located on the upper side of the lifting plate (51), the bottom ends of the plurality of lifting rods (541) are fixedly connected to the top surface of the same limit ring (53), and a first spring (543) is arranged between the limit ring (53) and the lifting plate (51) and located on the outer ring of the lifting rod (541); the limit ring (53) is located on the lower side of the forming punch (52) and the inner diameter of the limit ring (53) is greater than the maximum outer diameter of the forming punch (52); The lower mold assembly comprises a mold body (61), a positioning block (62) and a discharge assembly. The top surface and the bottom surface of the mold body (61) are respectively provided with molding grooves (601) corresponding to the molding convex mold (52), and the molding grooves (601) on both sides are symmetrically arranged; positioning blocks (62) are respectively arranged in the middle of the left and right sides of the mold body (61), and the maximum length between the two positioning blocks (62) is greater than the outer diameter of the through hole (22); a mold cavity (602) is provided in the center of the mold body (61), and a discharge assembly is arranged in the mold cavity (602). The material assembly comprises two sliding plates (631), an eccentric cylinder (632), a rotating shaft (633), a cam (634) and two sets of lifting mechanisms. The two sliding plates (631) are connected by a plurality of evenly distributed connecting brackets (6310), and the side walls of the two sliding plates (631) that are away from each other are respectively slidably connected to the inner wall of the corresponding mold cavity (602). An eccentric cylinder (632) is slidably arranged between the two sliding plates (631) and located on the inner circle of the connecting bracket (6310). The longitudinal cross-section of the eccentric cylinder (632) is elliptical. The invention relates to a circular annular structure, wherein a rotating shaft (633) is rotatably arranged between the centers of the two sliding plates (631), and the outer wall of the rotating shaft (633) is fixedly sleeved with a cam (634), and the protruding end of the cam (634) contacts the inner wall of the eccentric cylinder (632) in the short axis direction; and a lifting mechanism is respectively arranged on the outer walls of both sides of the eccentric cylinder (632) in the short axis direction and corresponding to the two forming grooves (601), and the lifting mechanism comprises a lifting rod (6351), a lifting block (6352) and a second spring (6353), and one end of the lifting rod (6351) is connected to the eccentric cylinder (6 32) The outer wall is fixedly connected, the other end of the ejector rod (6351) passes through the mold body (61) between the mold cavity (602) and the molding groove (601) and is located in the molding groove (601), a lifting block (6352) is fixedly arranged at one end of the ejector rod (6351) away from the eccentric cylinder (632), and a slot is provided on the bottom surface of the molding groove (601) corresponding to the lifting block (6352), and a second spring (6353) is arranged between the eccentric cylinder (632) and the mold cavity (602) and at the outer ring of the ejector rod (6351); The lifting and rotating assembly comprises a lifting plug plate (71), a rotating block (72), a lifting rod (73) and a supporting slide block (74); the lifting plug plate (71) is arranged on the left and right sides of the mold body (61) corresponding to the positioning block (62); and a rotating block (72) is arranged on the side of the positioning block (62) away from the mold body (61); the rotating block (72) passes through the middle of the corresponding lifting plug plate (71) and is rotatably connected; the rotating block (72) and the lifting plug plate (71) are arranged coaxially; the support platform (20) is provided with a slot corresponding to the lifting plug plate (71) and the lifting plug plate (71) is slidably engaged in the slot; a lifting rod (73) is fixedly arranged at the bottom end of the lifting plug plate (71) 73), and one end of the lifting rod (73) away from the lifting plug plate (71) passes through the support platform (20); the support slider (74) is arranged between the base (10) and the support platform (20) corresponding to the lifting rod (73), and the bottom surface of the support slider (74) is slidably connected to the end surface of the base (10), and the side of the support slider (74) away from each other is arranged as an inclined surface structure inclined from the middle of the support platform (20) to the outer circle of the base (10), and an inclined groove is provided on the inclined surface structure, and a horizontal groove is provided at the bottom of the inclined groove, and the horizontal groove is smoothly connected to the inclined groove, and one end of the lifting rod (73) away from the lifting plug plate (71) is slidably engaged in the corresponding inclined groove or horizontal groove; The positioning assembly comprises a clamping block (81), an inserting block (82), a latch (83), a driving connecting rod (84) and a connecting block (85). The clamping blocks (81) are evenly arranged on the outer ring of the positioning block (62) around the central axis of the mold body (61), and two of the clamping blocks (81) are respectively arranged corresponding to the two positioning blocks (62). The bottom surface of the clamping block (81) is slidably connected to the end surface of the support platform (20). The inner walls of the two clamping blocks (81) corresponding to the positioning blocks (62) are fixedly provided with the inserting blocks (82), and the outer walls of the two positioning blocks (62) are provided with positioning grooves corresponding to the inserting blocks (82) to match with the inserting blocks; the inner wall of the clamping block (81) which is unequal to the positioning block (62) is fixedly provided with the latch (83), and the outer wall of the mold body (61) is provided with a positioning groove corresponding to the latch (83) to match with the inserting blocks; the bottom of the clamping block (81) is fixedly provided with a driving connecting rod (84), and the end of the driving connecting rod (84) away from the clamping block (81) passes through the support platform (20). ) and is slidably connected to the end surface of the base (10); the inner wall of the bottom end of the driving connecting rod (84) of the clamping block (81) corresponding to the positioning block (62) is fixedly connected to the corresponding supporting sliding block (74) through a connecting block (85); the driving connecting rod (84) is driven by a rotating disk (86) arranged on the bottom surface of the support platform (20); the rotating disk (86) is coaxially arranged with the mold body (61) and is rotatably arranged on the bottom surface of the support platform (20); the rotating disk (86) is annular The structure has an inner wall located at the outer ring of the lifting rod (73); the rotating disk (86) is provided with an arc-shaped slide groove (860) corresponding to the driving connecting rod (84); the supporting platform (20) is provided with a horizontal slide groove (23) corresponding to the driving connecting rod (84); the driving connecting rod (84) passes through the corresponding horizontal slide groove (23) and the arc-shaped slide groove (860) in sequence from top to bottom; and the outer wall of the driving connecting rod (84) is slidably connected with the corresponding horizontal slide groove (23) and the inner wall of the arc-shaped slide groove (860) respectively.

2. The automotive parts processing and forming die according to claim 1, characterized in that: The depth of the slot is greater than the thickness of the lifting block (6352).

3. The automotive parts processing and forming die according to claim 1, characterized in that: Both ends of the rotating shaft (633) are respectively fixedly connected to the output shaft of the motor fixedly arranged on the side surfaces opposite to the sliding plate (631).

4. The automotive parts processing and forming die according to claim 1, characterized in that: The rotation of the rotating block (72) is controlled by a gear mechanism arranged on the lifting plug plate (71), the gear mechanism comprising a rotating gear (721), a gear rod (722) and a driving gear (723), the rotating gear (721) being fixedly sleeved on the outer wall of the rotating block (72), the gear rod (722) being arranged on the upper side of the rotating gear (721) and the outer wall of the gear rod (722) being fixedly sleeved on the driving gear (723) corresponding to the rotating gear (721), the driving gear (723) being meshed with the rotating gear (721); both ends of the gear rod (722) respectively penetrate the corresponding side walls of the lifting plug plate (71) and are rotatably connected, one end of the gear rod (722) is connected to a motor output shaft arranged on the outer wall of the lifting plug plate (71), and the other end of the gear rod (722) is rotatably connected to a counterweight block arranged on the outer wall of the lifting plug plate (71).

5. The automotive parts processing and forming die according to claim 1, characterized in that: The rotation of the rotating disk (86) is controlled by a motor gear mechanism arranged on the end surface of the base (10), wherein the motor gear mechanism specifically comprises a motor fixedly arranged on the end surface of the base (10) and a control gear (13) sleeved on the outer wall of the motor output shaft, wherein the control gear (13) and the support column (11) are arranged in a dynamometric manner; an outer gear ring is fixedly sleeved on the outer wall of the rotating disk (86), and the outer gear ring is meshed with the control gear (13).

6. The automotive parts processing and forming die according to claim 1, characterized in that: The end surface of the base (10) between the supporting slide blocks (74) is slidably provided with a collecting groove (12), and the collecting groove (12) is provided corresponding to the through hole (22); the inner wall of the collecting groove (12) is filled with sponge.

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