Automobile part stamping die

Abstract

The invention discloses an automobile part stamping die and relates to the technical field of stamping dies, the stamping die comprises a stamping mechanism, a stamping module and a cleaning mechanism, the stamping module is arranged on a workbench and located between the stamping mechanism and the workbench, a stamping head is arranged at the output end of the stamping mechanism, and a material lifting assembly is arranged in a lower die holder; when the material lifting plate is located at the discharging position, the material lifting assembly is used for controlling the upper surface position of the material lifting plate to be higher than the upper surface position of the lower die base. The sweeping mechanism comprises a swing assembly, a swing angle assembly, a sweeping plate and an air pumping assembly, the output end of the air pumping assembly communicates with the air inlet end of the sweeping plate, the output end of the swing assembly is in transmission connection with the sweeping plate, and the swing assembly is used for driving the sweeping plate to be switched between the initial position and the sweeping position; the swing angle assembly is used for driving the blowing plate to swing; according to the stamping die, efficient sweeping of chippings is achieved through dynamic displacement of the sweeping plate in the sweeping mechanism.

Description

Technical Field

[0001] The present invention belongs to the technical field of stamping dies, and particularly relates to a stamping die for automobile parts. Background Art

[0002] Automobile parts refer to various components used for automobile assembly, repair, or replacement. They are the basis for the normal operation, maintenance, and servicing of automobiles, covering all aspects from exterior parts to internal components, mechanical parts to electronic systems. When manufacturing automobile parts, stamping dies are required. A stamping die is a special process equipment that processes materials (metals or non-metals) into parts (or semi-finished products) in cold stamping processing.

[0003] Currently, for the stamping dies used for automobile parts, due to the extrusion of the stamping head and the lower die base on the parts after stamping, metal debris is likely to be generated at the bent parts. During long-term operation, the metal debris accumulates in the grooves of the lower die base, affecting the subsequent forming of parts, increasing the wear of the die, and moreover, the traditional way of manually frequently taking parts not only increases the labor intensity of the workers but also may cause scratches by the metal debris. Summary of the Invention

[0004] The purpose of the present invention is to provide a stamping die for automobile parts with a simple structure and reasonable design to solve the above problems.

[0005] The present invention achieves the above purpose through the following technical solutions:

[0006] A stamping die for automobile parts, comprising:

[0007] A stamping mechanism, which is arranged on a workbench;

[0008] A stamping module, which is arranged on the workbench and located between the stamping mechanism and the workbench. The stamping module includes a stamping head, a lower die base, a blank lifting plate, a blank lifting component, and a indexing component. The stamping head is arranged at the output end of the stamping mechanism. The indexing component is in transmission connection with the lower die base through a turntable. The indexing component is used to drive multiple lower die bases to sequentially switch between different stations. Among them, a blank lifting plate is arranged at the opening position of the lower die base, and the blank lifting component is arranged in the lower die base. When the blank lifting plate is at the blank discharging position, the blank lifting component is used to control the upper surface position of the blank lifting plate to be higher than the upper surface position of the lower die base;

[0009] Cleaning mechanism, the cleaning mechanism is arranged above the workbench and on one side of the lower die holder at the blanking position. The cleaning mechanism includes a swing assembly, a swing angle assembly, a purging plate and a gas pumping assembly. The output end of the gas pumping assembly is communicated with the air inlet end of the purging plate. The output end of the swing assembly is drivingly connected to the purging plate. The output end of the swing angle assembly is drivingly connected to the purging plate. The swing assembly is used to drive the purging plate to switch between the initial position and the purging position. When the purging plate rotates from the initial position to the purging position, the swing angle assembly is used to drive the purging plate to swing, so that the angle between the purging surface of the purging plate and the upper surface of the lifting plate gradually decreases.

[0010] As a further optimized solution of the present invention, the swing assembly includes a first rack, a second rack, a driven gear and a support. A side plate is fixedly arranged on one side of the lower die holder facing the fixed disk. The fixed disk is fixedly arranged on the support seat through a fixed column. The first rack and the second rack are fixedly arranged above the side plate. Along the rotation direction of the turntable, the first rack is located in front of the second rack, and along the rotation radius direction of the turntable, the first rack is located on the side of the second rack close to the rotation axis of the turntable. The support is rotatably connected to the cantilever, and the cantilever is fixedly arranged on the fixed disk. One end of the support is fixedly connected to the driven gear, and the other end of the support is rotatably connected to a swing arm. A purging plate is fixedly arranged on the side of the swing arm. A through groove is formed in the swing arm, and the through groove is communicated with the purging port of the purging plate. The output end of the swing angle assembly is drivingly connected to the swing arm, and the swing angle assembly is used to drive the swing arm to swing;

[0011] When the lower die holder is displaced from the cleaning position to the loading position, the first rack corresponding to the lower die holder at the blanking position first meshes with the driven gear to drive the purging plate to swing from the initial position to the purging position, and then the second rack meshes with the driven gear to drive the purging plate to reset to the initial position.

[0012] As a further optimized solution of the present invention, the swing angle assembly includes an inclined plate, a convex plate and a torsion spring. A convex plate is arranged at one end of the purging plate away from the swing arm. The convex plate has an arc convex part. The inclined plate is fixedly arranged on the fixed disk through a bracket, and the inclined plate is located above the lower die holder at the cleaning position. The side of the inclined plate facing the turntable has an inclined surface, and along the swinging direction of the purging plate from the initial position to the purging position, the height of the inclined surface of the inclined plate gradually decreases. When the purging plate swings from the initial position to the purging position, the arc convex part of the convex plate frictionally abuts against the inclined surface of the inclined plate, so that the angle between the purging surface of the purging plate and the upper surface of the lifting plate gradually decreases. A torsion spring is sleeved at the rotational connection between the swing arm and the support.

[0013] As a further optimized solution of the present invention, the swing angle assembly further includes a swing rod, a limit rod, a guide rod, a sleeve, a first spring and a displacement plate. A swing rod is rotatably connected to the support. One end of the swing rod away from the support is rotatably connected to one end of the guide rod. The other end of the guide rod is slidably connected to the sleeve. The sleeve is fixedly arranged on the swing arm, and a baffle is fixedly arranged in the inner cavity of the sleeve. One end of the guide rod passing through the baffle is fixedly provided with a displacement plate. The area of the inner cavity of the sleeve between the displacement plate and the baffle is an air vent cavity. The air vent cavity is communicated with the through groove of the swing arm. A first spring is sleeved on the guide rod on the side of the baffle away from the air vent cavity. The support is also provided with limit rods, and the limit rods are arranged in pairs.

[0014] As a further optimized solution of the present invention, the air pumping assembly includes an air pump and a hose. The output end of the air pump is communicated with the input end of the hose, and the output end of the hose is communicated with the air vent cavity.

[0015] As a further optimized solution of the present invention, the indexing assembly includes a support seat, a turntable, a driven gear ring, a driving gear and a motor. The support seat is fixedly arranged on the workbench. The turntable is rotatably arranged on the support seat. A sleeve is fixedly arranged at the lower end of the turntable. A driven gear ring is fixedly arranged on the side of the sleeve. The driven gear ring is meshed and driven with the driving gear. The output end of the motor is fixedly connected with the driving gear. A lower die base is fixedly arranged at the upper end of the turntable.

[0016] As a further optimized solution of the present invention, the material lifting assembly includes an abutting rod, a second spring and an abutting block. The sleeve is rotatably connected to the fixed column. The lower die base is located on one side of the fixed disk. An abutting rod is arranged on the side of the lower die base facing the fixed disk. The abutting rod is slidably connected with the lower die base, and the sliding direction of the abutting rod and the lower die base is the same as the radial direction of the rotation radius of the turntable. An outer abutting block is fixedly arranged at one end of the abutting rod close to the fixed disk. An inner abutting block is fixedly arranged at one end of the abutting rod located inside the lower die base. A second spring is sleeved on the part of the abutting rod between the inner abutting block and the lower die base. The lower end of the material lifting plate is slidably connected with the lower die base through a fixedly arranged abutting block. A wedge surface is arranged at the position of the abutting block close to the inner abutting block;

[0017] The arc radius of the fixed disk corresponding to the lower die base at the stamping position is smaller than the arc radius of the fixed disk corresponding to the lower die base at the blanking position. When the lower die base is at the stamping position, the outer abutting block is arranged at an interval from the fixed disk, and the upper surface position of the material lifting plate is lower than the upper surface position of the lower die base; when the lower die base is at the blanking position, the outer abutting block is frictionally abutted against the fixed disk, the inner abutting block is frictionally abutted against the inclined surface of the abutting block, and the upper surface position of the material lifting plate is higher than the upper surface position of the lower die base;

[0018] Among them, a plurality of the lower die bases are evenly circumferentially distributed on the periphery of the fixed disk.

[0019] As a further optimization solution of the present invention, along the rotation direction of the turntable, the arc side surface of the fixed disk includes a first area, a second area, a third area, and a fourth area, and the first area, the second area, the third area, and the fourth area are arranged continuously in sequence. The arc radius of the first area is smaller than that of the third area, and the arc radius of the second area gradually increases, and the arc radius of the fourth area gradually decreases. When the lower die base is in the blanking position, the outer abutting block frictionally abuts against the arc side surface of the third area.

[0020] As a further optimization solution of the present invention, a blanking table is arranged on one side of the workbench, and the blanking table is arranged on one side of the lower die base located in the blanking position. A stamping frame is fixedly arranged on the workbench, and a robotic arm is further arranged on the stamping frame. A clamping jaw is arranged at the output end of the robotic arm, and the clamping jaw is used to take out the stamped part at the blanking position from the lower die base and place it on the blanking table.

[0021] As a further optimization solution of the present invention, the stamping mechanism includes a hydraulic cylinder and a guide post. A hydraulic cylinder is arranged on the stamping frame, and the output end of the hydraulic cylinder is fixedly connected to an upper die base. A stamping head is fixedly arranged on the side of the upper die base facing the workbench. Among them, the upper die base is telescopically connected to the stamping frame through the guide post.

[0022] The present invention has at least the following beneficial effects: The automotive parts stamping die provided by the present invention, by setting a stamping mechanism, a cleaning mechanism, and a stamping module, after the stamping mechanism drives the stamping head to complete the stamping process of the stamping blank at the stamping position, with the restraint of the outer abutting block against the fixed disk, the lifting plate corresponding to the lower die base at the stamping position is lifted, and the blank is lifted out of the lower die base, so as to facilitate the clamping jaw of the subsequent robotic arm to clamp it and transfer it to the blanking table. There is no need for manual blanking, and workers will not be scratched by debris, and the safety factor is high;

[0023] Moreover, after blanking, when the turntable continues to rotate and the lower die base located in the blanking position shifts towards the cleaning position, with the meshing transmission of the first rack on the lower die base at the stamping position to the driven gear, the support seat drives the purging plate to swing through the swing arm, so that the purging plate sweeps across the lower die base located in the cleaning position. And under the abutting restraint of the convex plate and the inclined plate, while the purging plate swings, it also rotates self - rotatably, realizing the purging of the metal debris on the surface of the lifting plate by the purging plate. And during the purging process, the included angle between the purging surface of the purging plate and the upper surface of the lifting plate gradually decreases, making the airflow between the purging surface of the purging plate and the lifting plate more concentrated, and the impact force of the airflow increases, and the driving force on the debris increases, thereby improving the cleaning quality of the metal debris on the surface of the lifting plate;

[0024] In addition, during the process of the purging plate swinging from the initial position to the purging position, when the purging plate swings around the rotation axis line of the swing arm and the support, under the transmission constraint of the swing rod and the guide rod, the guide rod first slides outward of the sleeve and then slides inward of the sleeve, so that the cross-sectional dimension of the ventilation cavity first decreases and then increases, making the air flow velocity first increase and then decrease until the air flow tends to the initial stable state, avoiding the generation of noise caused by continuously excessive air flow velocity. Among them, during the process of the gradually decreasing cross-sectional dimension of the ventilation cavity, the air flow velocity blown out from the purging orifice of the purging plate increases, that is, the purging impact force on the debris increases, thus ensuring the purging effect of the debris. Description of the Drawings

[0025] Figure 1 is the overall structural schematic diagram of the present invention;

[0026] Figure 2 is the partial sectional structural schematic diagram of the stamping module of the present invention;

[0027] Figure 3 is the partial structural schematic diagram of the assembly structure of the cleaning mechanism and the stamping module of the present invention;

[0028] Figure 4 is the partial structural distribution schematic diagram of the driven gear ring, the first rack and the second rack when the cleaning mechanism of the present invention is in the initial position;

[0029] Figure 5 is the partial structural schematic diagram of the cleaning mechanism of the present invention when the purging plate is in the initial position;

[0030] Figure 6 is the present invention Figure 5 partial sectional structural schematic diagram;

[0031] Figure 7 is the partial structural schematic diagram of the cleaning mechanism of the present invention when the purging plate is in the purging position;

[0032] Figure 8 is the present invention Figure 2 enlarged view at A in;

[0033] Figure 9 is the distribution schematic diagram of multiple lower die bases and the fixed plate of the present invention;

[0034] Figure 10 is the structural schematic diagram of the stamping mechanism of the present invention.

[0035] In the figure: 1. Workbench; 2. Cleaning mechanism; 201. Side plate; 202. Second rack; 203. First rack; 204. Driven gear; 205. Hose; 206. Inclined plate; 207. Bracket; 208. Blowing plate; 209. Convex plate; 210. Swing arm; 211. Swing rod; 212. Limit rod; 213. Support; 214. Guide rod; 215. Sleeve; 216. First spring; 217. Baffle; 218. Shifting plate; 219. Cantilever; 3. Stamping module; 301. Lower die base; 302. Turntable; 303. Support base; 304. Driving gear; 305. Motor; 306. Driven gear ring; 307. Outer abutting block; 308. Fixed disk; 309. Lifting plate; 310. Abutting block; 311. Inner abutting block; 312. Second spring; 313. Abutting rod; 314. Sleeve; 4. Discharging table; 5. Robot arm; 6. Stamping mechanism; 61. Stamping frame; 62. Hydraulic cylinder; 63. Stamping head; 64. Guide post; 65. Upper die base. Detailed implementation manner

[0036] The following further describes the present application in detail with reference to the drawings. It is necessary to point out here that the following specific implementation manners are only used to further illustrate the present application and cannot be construed as limiting the protection scope of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0037] In one embodiment, as Figure 1 . Figure 2 shown, an automotive parts stamping die includes:

[0038] A stamping mechanism 6, the stamping mechanism 6 is arranged on the workbench 1;

[0039] A stamping module 3, the stamping module 3 is arranged on the workbench 1 and is located between the stamping mechanism 6 and the workbench 1. Continuing to refer to Figure 2 and Figure 10 , the stamping module 3 includes a stamping head 63, a lower die base 301, a lifting plate 309, a lifting component and a indexing component. The stamping head 63 is arranged at the output end of the stamping mechanism 6. The indexing component is drivingly connected to the lower die base 301 through a turntable 302. The indexing component is used to drive a plurality of lower die bases 301 to sequentially switch between different stations. Among them, a lifting plate 309 is arranged at the opening position of the lower die base 301, and the lifting component is arranged in the lower die base 301. When the lifting plate 309 is in the discharging position, the lifting component is used to control the upper surface position of the lifting plate 309 to be higher than the upper surface position of the lower die base 301;

[0040] A cleaning mechanism 2 is provided above the workbench 1, and the cleaning mechanism 2 is provided on one side of the lower mold base 301 located at the unloading position, the cleaning mechanism 2 includes a swinging assembly, a swinging angle assembly, a purge plate 208 and a pump air assembly, the output end of the pump air assembly is connected to the air inlet end of the purge plate 208, the output end of the swinging assembly is transmission connected to the purge plate 208, the output end of the swinging angle assembly is transmission connected to the purge plate 208, the swinging assembly is used to drive the purge plate 208 to switch between the initial position and the purge position, when the purge plate 208 rotates from the initial position to the purge position, the swinging angle assembly is used to drive the purge plate 208 to swing, so that the angle between the purge surface of the purge plate 208 and the upper surface of the lifting plate 309 gradually decreases.

[0041] In the above embodiment, after the stamping blank is placed on the lower die base 301 and is subjected to stamping processing by the punch head 63, the lower die base 301 is shifted from the stamping position to the unloading position. At this time, the lifting plate is driven upward by the lifting assembly so that the lifting plate 309 pushes the stamping part out of the lower die base 301 to facilitate the removal of the stamping part and avoid the stamping part from being stuck in the lower die base 301. At this time, the metal debris squeezed out of the lower die base 301 due to stamping is pushed out of the lower die base 301 under the upward movement of the lifting plate 309. Then, the swing assembly drives the purge plate 208 to switch between the initial position and the purge position. When the purge plate 208 rotates from the initial position to the purge position, the swing angle assembly is used to drive the purge plate 208 to rotate from the initial position to the purge position. The sweeping plate 208 swings so that the angle between the sweeping surface of the sweeping plate 208 and the upper surface of the lifting plate 309 gradually decreases, thereby enabling the sweeping plate 208 to sweep the surface of the lifting plate 309 to sweep the metal debris on its surface, and during the sweeping process, the angle between the sweeping surface of the sweeping plate 208 and the upper surface of the lifting plate 309 gradually decreases, that is, the angle between the direction of the sweeping airflow of the sweeping plate 208 and the upper surface of the lifting plate 309 gradually increases, so that the airflow between the sweeping surface of the sweeping plate 208 and the lifting plate 309 will be more concentrated, and the impact force of the airflow will be enhanced, and the driving force on the debris will be enhanced, thereby improving the cleaning quality of the metal debris on the surface of the lifting plate 309.

[0042] It should be noted that multiple lower die bases 301 are switched among different workstations in sequence, which means that the lower die base 301, driven by the transfer assembly, passes through the loading position, stamping position, unloading position, and cleaning position in sequence, and multiple lower die bases 301 pass through the above positions in sequence, that is, the process contents of the lower die bases 301 at different workstations do not interfere with each other, so that the stamping die of the above-mentioned automotive accessories can perform processes in multiple positions at the same time to improve processing efficiency.

[0043] For example, see Figure 3 , Figure 4 and Figure 5The swing assembly includes a first rack 203, a second rack 202, a driven gear 204 and a support 213. A side plate 201 is fixedly provided on the side of the lower die seat 301 facing the fixed disk 308. The fixed disk 308 is fixedly provided on the support seat 303 through a fixed column. The first rack 203 and the second rack 202 are fixedly provided above the side plate 201. Along the rotation direction of the turntable 302, that is, the direction indicated by the dotted arrow in the figure, the first rack 203 is located in front of the second rack 202, and along the rotation radius direction of the turntable 302, the first rack 203 is located in front of the second rack 202 is close to the side of the rotation axis of the turntable 302, the support 213 is rotatably connected to the cantilever 219, the cantilever 219 is fixedly set on the fixed disk 308, one end of the support 213 is fixedly connected to the driven gear 204, the other end of the support 213 is rotatably connected to the swing arm 210, the side of the swing arm 210 is fixedly provided with a purge plate 208, a through groove is opened in the swing arm 210, the through groove is connected to the purge port of the purge plate 208, the purge port is opened on one side of the purge surface of the purge plate 208, the output end of the swing angle assembly is transmission-connected to the swing arm 210, and the swing angle assembly is used to drive the swing arm 210 to swing.

[0044] It should be noted that if Figure 9 As shown, since a plurality of lower die seats 301 are circumferentially distributed on the outer side of the fixed plate 308, at this time, before the lower die seat 301 at the unloading position completes unloading, one lower die seat 301 is already at the cleaning position, so that Figure 9 Taking the position shown as an example, the position of the lower die base 301 at the far right is the unloading position. Along the rotation direction of the turntable 302, that is, the clockwise direction, the position of the lower die base 301 located in front of the unloading position is the cleaning position. Therefore, under the drive of the indexing assembly, the lower die base 301 located at the unloading position moves toward the cleaning position. At the same time, when the lower die base 301 located at the cleaning position moves toward the loading position, the first rack 203 corresponding to the lower die base 301 at the unloading position first meshes with the driven gear 204 for transmission, as shown in FIG. Figure 4 Taking the position shown as an example, the driven gear 204 rotates counterclockwise to make the purge plate 208 pass over the lower die seat 301 at the cleaning position, and then the second rack 202 is meshed with the driven gear 204 to transmit, so that the purge plate 208 is reset to the initial position. Thus, the lifting plate 309 corresponding to the lower die seat 301 at the cleaning position is completed. At this time, the purge plate 208 returns to the initial position, and the lower die seat 301 at the unloading position is transferred to the cleaning position, waiting for the cleaning operation of the cleaning mechanism 2.

[0045] For example, see Figure 3 and Figure 5, the swing angle assembly includes an inclined plate 206, a convex plate 209 and a torsion spring. A convex plate 209 is provided at one end of the purging plate 208 away from the swing arm 210. The convex plate 209 has an arc convex part. The inclined plate 206 is fixedly arranged on the fixed disk 308 through a bracket 207, and the inclined plate 206 is located above the lower die base 301 at the cleaning position. The side of the inclined plate 206 facing the workbench 1 has an inclined surface, and along the swinging direction of the purging plate 208 from the initial position to the purging position, the height of the inclined surface of the inclined plate 206 gradually decreases. When the purging plate 208 swings from the initial position to the purging position, the arc convex part of the convex plate 209 frictional contacts with the inclined surface of the inclined plate 206, so that the angle between the purging surface of the purging plate 208 and the upper surface of the lifting plate 309 gradually decreases. A torsion spring is sleeved at the rotational connection of the swing arm 210 and the support 213. When the swing arm 210 drives the purging plate 208 to swing from the purging position to the initial position, under the action of the torsion spring, the purging plate 208 is reset to the initial position.

[0046] In one embodiment, based on the content of the above embodiment, continue to refer to Figure 5 , Figure 6 and Figure 7 , the swing angle assembly further includes a swing rod 211, a limit rod 212, a guide rod 214, a sleeve 215, a first spring 216 and a displacement plate 218. A swing rod 211 is rotatably connected to the support 213. One end of the swing rod 211 away from the support 213 is rotatably connected to one end of the guide rod 214. The other end of the guide rod 214 is slidably connected to the sleeve 314. The sleeve 314 is fixedly arranged on the swing arm 210, and a baffle 217 is fixedly arranged in the inner cavity of the sleeve 314. The guide rod 214 penetrates through one end of the baffle 217 and is fixedly provided with a displacement plate 218. The inner cavity area of the sleeve 314 between the displacement plate 218 and the baffle 217 is an air cavity, and the air cavity is communicated with the through groove of the swing arm 210. A first spring 216 is sleeved on the guide rod 214 on the side of the baffle 217 away from the air cavity. A limit rod 212 is further arranged on the support 213, and the limit rods 212 are arranged in pairs.

[0047] In the above embodiment, as Figure 6 shown, it is a structural schematic diagram when the purging plate 208 is at the initial position, Figure 7 then it schematically shows the structural schematic diagram when the purging plate is at the purging position. When the driven gear 204 is meshed and driven by the first rack 203, during the process that the support 213 drives the purging plate 208 to swing from the initial position to the purging position through the swing arm 210, the actual swing trajectory at the rotational connection point of the swing rod 211 and the guide rod 214 is Figure 6 the trajectory indicated by the short dashed line in Figure 6 , and the swing trajectory at the rotational connection point of the swing rod 211 and the guide rod 214 when the swing rod 211 does not stretch is Figure 6It can be seen that when the convex plate 209 is resisted by the inclined plate 206, causing the purging plate 208 to swing counterclockwise (in the orientation shown in Figure 6 ), around the rotation axis of the swing arm 210 and the support 213, the swing rod 211 restricts the guide rod 214. When the rotation connection point of the swing rod 211 and the guide rod 214 swings counterclockwise to the highest point position, the guide rod 214 slides outward of the sleeve 215, and the first spring 216 is compressed, causing the displacement plate 218 to move toward the baffle 217. As a result, the cross-sectional dimension of the ventilation cavity between the baffle 217 and the displacement plate 218 decreases. According to the continuity equation of fluid mechanics: A1V1 = A2V2 = Q, where A1 represents the initial cross-sectional dimension of the ventilation cavity, V1 represents the air flow purging speed under the condition of A1, A2 represents the cross-sectional dimension of the ventilation cavity after the change, V2 represents the air flow purging speed under the condition of A2, and Q represents the volume flow rate of the gas, which is a constant. It can be known that when A1 > A2, V1 < V2. When the cross-sectional dimension of the ventilation cavity decreases, the purging air flow speed increases, that is, the purging impact force on the debris increases, thus ensuring the purging effect of the debris. When the swing rod 211 continues to swing counterclockwise to the purging position, under the reset action of the first spring 216, the guide rod 214 slides back into the sleeve 215 until the cross-sectional dimension of the ventilation cavity returns to the initial dimension, that is, the cross-sectional dimension of the ventilation cavity first increases and then decreases, causing the air flow speed to first increase and then decrease until the air flow tends to the initial stable state, avoiding noise generated by continuously excessive air flow speed.

[0048] It should be further noted that the swing position of the swing rod 211 is restricted by the limit rod 212, as shown in Figure 6 and Figure 7 . Preferably, when the swing rod 211 swings counterclockwise to the maximum angular displacement, the purging surface of the purging plate 208 is parallel to the upper surface of the lifting plate 309. At this time, the purging air flow impact direction of the purging plate 208 is perpendicular to the upper surface of the lifting plate 309, and the distance between the purging surface of the purging plate 208 and the upper surface of the lifting plate 309 is the closest, thus ensuring the purging effect of the debris.

[0049] It should be noted that continuing to refer to Figure 3 , the air pumping assembly includes an air pump (not shown in the figure) and a hose 205. The output end of the air pump is connected to the input end of the hose 205, and the output end of the hose 205 is connected to the ventilation cavity. Thus, a constant Q is introduced into the ventilation cavity through the hose 205. Among them, the hose 205 can freely twist under the swing of the swing arm 210 without affecting the cross-sectional dimension of the air flow conveying pipeline inside it.

[0050] Exemplarily, continuing to refer to Figure 2, the indexing component includes a support base 303, a turntable 302, a driven gear ring 306, a driving gear 304, and a motor 305. The support base 303 is fixedly arranged on the workbench 1, the turntable 302 is rotatably arranged on the support base 303, a sleeve 314 is fixedly arranged at the lower end of the turntable 302, a driven gear ring 306 is fixedly arranged on the side of the sleeve 314, the driven gear ring 306 is in meshing transmission with the driving gear 304, the output end of the motor 305 is fixedly connected to the driving gear 304, and a lower die base 301 is fixedly arranged at the upper end of the turntable 302. The motor 305 drives the driving gear 304 to mesh and drive the driven gear ring 306, so that the turntable 302 drives the lower die base 301 above it to perform circumferential displacement, that is, the circumferential displacement direction indicated by the dashed arrows in Figure 3 and Figure 4 . Among them, the driving of the driving gear 304 by the motor 305 is intermittent, so that the lower die base 301 will not be displaced when the punching head 63 performs punching processing.

[0051] Exemplarily, continue to refer to Figure 2 , Figure 8 and Figure 9 , the lifting component includes an abutting rod 313, a second spring 312, and an abutting block 310. The sleeve 314 is rotatably connected to a fixed column. The lower die base 301 is located on one side of the fixed disk 308. An abutting rod 313 is arranged on the side of the lower die base 301 facing the fixed disk 308. The abutting rod 313 is slidably connected to the lower die base 301, and the sliding direction of the abutting rod 313 and the lower die base 301 is consistent with the radial direction of the rotation radius of the turntable 302. An outer abutting block 307 is fixedly arranged at one end of the abutting rod 313 close to the fixed disk 308. An inner abutting block 311 is fixedly arranged at one end of the abutting rod 313 located inside the lower die base 301. A second spring 312 is sleeved on the portion of the abutting rod 313 between the inner abutting block 311 and the lower die base 301. The lower end of the lifting plate 309 is slidably connected to the lower die base 301 through a fixedly arranged abutting block 310. A wedge surface is arranged at the position of the abutting block 310 close to the inner abutting block 311;

[0052] The arc radius of the fixed disk 308 corresponding to the lower die base 301 when it is in the punching position is smaller than the arc radius of the fixed disk 308 corresponding to the lower die base 301 when it is in the blanking position. And when the lower die base 301 is in the punching position, the outer abutting block 307 is arranged at an interval from the fixed disk 308, and the upper surface position of the lifting plate 309 is lower than the upper surface position of the lower die base 301; when the lower die base 301 is in the blanking position, the outer abutting block 307 is in frictional contact with the fixed disk 308, the inner abutting block 311 is in frictional contact with the inclined surface of the abutting block 310, and the upper surface position of the lifting plate 309 is higher than the upper surface position of the lower die base 301;

[0053] Among them, a plurality of the lower die bases 301 are uniformly arranged in a circumferential distribution around the outer periphery of the fixed disk 308.

[0054] Exemplarily, continue to refer to Figure 9 , along the rotation direction of the turntable 302, the arc side surface of the fixed disk 308 includes a first region ①, a second region ②, a third region ③, and a fourth region ④, and the first region ①, the second region ②, the third region ③, and the fourth region ④ are successively and continuously arranged. The arc radius of the first region ① is smaller than the arc radius of the third region ③, and the arc radius of the second region ② gradually increases, and the arc radius of the fourth region ④ gradually decreases. When the lower die base 301 is located at the blanking position, the outer abutting block 307 frictionally abuts against the arc side surface of the third region ③.

[0055] In the above embodiment, when the lower die base 301 is located at the loading position and the stamping position respectively, the outer abutting block 307 is spaced from the arc side surface of the first region ①; as the turntable 302 rotates, the outer abutting block 307 slides along the second region ②, so that the lifting plate 309 gradually moves upward. When the lower die base 301 rotates to the blanking position, that is, the outer abutting block 307 abuts against the arc side surface of the third region ③. At this time, as Figure 8 shown, the lifting plate 309 is lifted to a position where the upper surface of the lifting plate 309 is higher than the upper surface of the lower die base 301; thus, after the stamping part is blanked, when the purging plate 208 purges the lifting plate 309 on the lower die base 301 at the cleaning position, the outer abutting block 307 corresponding to the lower die base 301 at the cleaning position still abuts against the arc side surface of the third region ③; then after the lower die base 301 leaves the cleaning position, it continues to move along the arc side surface of the fourth region ④ by the outer abutting block 307 until the lower die base 301 is displaced to the loading position. At this time, the outer abutting block 307 frictionally abuts against the arc side surface of the first region ①. Repeating the above actions can perform periodic work on the same lower die base 301.

[0056] Exemplarily, continue to refer to Figure 1 , a blanking table 4 is arranged on one side of the workbench 1. The blanking table 4 is arranged on one side of the lower die base 301 located at the blanking position. A stamping frame 61 is fixedly arranged on the workbench 1. A robotic arm 5 is further arranged on the stamping frame 61. A clamping jaw is arranged at the output end of the robotic arm 5. The clamping jaw is used to take out the stamping part from the lower die base 301 at the blanking position and place it on the blanking table 4. And through the lifting of the lifting plate 309, the edge of the stamping part protrudes outside the lower die base 301, facilitating the clamping jaw to clamp the side part of the stamping part and transfer it to the blanking table 4.

[0057] Exemplarily, continue to refer to Figure 1 and Figure 10, the stamping mechanism 6 includes a hydraulic cylinder 62 and a guide post 64. A hydraulic cylinder 62 is arranged on the stamping frame 61. The output end of the hydraulic cylinder 62 is fixedly connected with an upper die base 65. A stamping head 63 is fixedly arranged on the side of the upper die base 65 facing the workbench 1. Among them, the upper die base 65 is telescopically connected with the stamping frame 61 through the guide post 64. The hydraulic cylinder 62 drives the upper die base 65, so that the upper die base 65 drives the stamping head 63 to perform stamping processing on the stamping blank on the lower die base 301 located at the stamping position.

[0058] It should be noted that when the stamping die for automotive parts is in use, through the intermittent drive of the motor 305, the driving of the driving gear 304 to mesh and drive the driven toothed ring 306 to rotate intermittently, so as to realize that the turntable 302 drives a plurality of lower die bases 301 to pass through the feeding position, the stamping position, the blanking position and the cleaning position in sequence, and the stamping mechanism 6 drives the stamping head 63 to perform stamping processing on the stamping blank on the lower die base 301 located at the stamping position;

[0059] Then, after the turntable 302 drives the lower die base 301 to shift from the stamping position to the blanking position, under the abutting constraint of the outer abutting block 307 and the fixed disk 308, the lifting plate 309 of the lower die base 301 at the blanking position is lifted upward to a position where the upper surface of the lifting plate 309 is higher than the upper surface of the lower die base 301, so that the metal debris squeezed out by stamping in the lower die base 301 is all pushed out of the lower die base 301 under the upward movement of the lifting plate 309, and it is convenient for the clamping jaw of the robotic arm 5 to take off the stamped workpiece and transfer it to the blanking table 4. There is no need for manual blanking, and workers will not be scratched by the debris, and the safety factor is high;

[0060] The turntable 302 continues to rotate. At this time, the first rack 203 on the lower die base 301 at the stamping position meshes and drives the driven gear 204, so that the support 213 drives the purging plate 208 to swing counterclockwise along the Figure 4 shown orientation, so that the purging plate 208 sweeps across the lower die base 301 located at the cleaning position. And under the abutting constraint of the convex plate 209 and the inclined plate 206, while the purging plate 208 swings, it also rotates around the rotation axis of the swing arm 210 and the support 213, realizing that the purging plate 208 sweeps across the surface of the lifting plate 309 to purge the metal debris on its surface. And during the purging process, the included angle between the purging surface of the purging plate 208 and the upper surface of the lifting plate 309 gradually decreases, that is, the included angle between the purging air flow direction of the purging plate 208 and the upper surface of the lifting plate 309 gradually increases. Thus, the air flow between the purging surface of the purging plate 208 and the lifting plate 309 will be more concentrated, and the impact force of the air flow is enhanced, and the driving force on the debris is enhanced, so as to improve the cleaning quality of the metal debris on the surface of the lifting plate 309;

[0061] At the same time, referring to Figure 6During the process of the purging plate 208 swinging from the initial position to the purging position, when the purging plate 208 swings around the rotation axis of the swing arm 210 and the support 213, under the transmission constraint of the swing rod 211 and the guide rod 214, the guide rod 214 first slides outward of the sleeve 215 and then slides inward of the sleeve 215, so that the cross-sectional size of the ventilation cavity first decreases and then increases, and the air flow velocity first increases and then decreases to the initial stable state, avoiding the generation of noise caused by continuously excessive air flow velocity. Among them, during the process of the gradual decrease of the cross-sectional size of the ventilation cavity, the air flow velocity blown out from the purging port of the purging plate 208 increases, that is, the purging impact force on the debris increases, so as to ensure the purging effect of the debris.

[0062] The above embodiments only represent several implementation manners of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A stamping die for automobile parts, characterized in that: include: A stamping mechanism (6), wherein the stamping mechanism (6) is arranged on the workbench (1); A stamping die set (3), the stamping die set (3) is arranged on a workbench (1) and is located between a stamping mechanism (6) and the workbench (1), the stamping die set (3) comprises a stamping head (63), a lower die base (301), a material lifting plate (309), a material lifting assembly and a transfer assembly, the stamping head (63) is arranged at the output end of the stamping mechanism (6), the transfer assembly is connected to the lower die base (301) through a turntable (302), and the transfer assembly is used to drive a plurality of lower die bases (301) to switch between different workstations in sequence, wherein a material lifting plate (309) is arranged at an opening position of the lower die base (301), the material lifting assembly is arranged in the lower die base (301), and when the material lifting plate (309) is located at a material unloading position, the material lifting assembly is used to control the upper surface position of the material lifting plate (309) to be higher than the upper surface position of the lower die base (301); A cleaning mechanism (2), wherein the cleaning mechanism (2) is arranged above the workbench (1), and the cleaning mechanism (2) is arranged on one side of the lower mold base (301) located at the unloading position, the cleaning mechanism (2) comprising a swing component, a swing angle component, a purge plate (208) and a pump air component, the output end of the pump air component is connected to the air inlet end of the purge plate (208), the output end of the swing component is transmission-connected to the purge plate (208), the output end of the swing angle component is transmission-connected to the purge plate (208), the swing component is used to drive the purge plate (208) to switch between an initial position and a purge position, and when the purge plate (208) rotates from the initial position to the purge position, the swing angle component is used to drive the purge plate (208) to swing, so that the angle between the purge surface of the purge plate (208) and the upper surface of the lifting plate (309) gradually decreases.

2. The automotive parts stamping die according to claim 1, characterized in that: The swing assembly comprises a first rack (203), a second rack (202), a driven gear (204) and a support (213); a side plate (201) is fixedly arranged on a side of the lower die seat (301) facing the fixed disk (308); the fixed disk (308) is fixedly arranged on the support seat (303) via a fixing column; a first rack (203) and a second rack (202) are fixedly arranged above the side plate (201); along the rotation direction of the rotating disk (302), the first rack (203) is located in front of the second rack (202); and along the rotation radius direction of the rotating disk (302), the first rack (203) is located behind the second rack (202). The second rack (202) is close to one side of the rotation axis of the rotating disk (302); the support (213) is rotatably connected to the cantilever (219); the cantilever (219) is fixedly arranged on the fixed disk (308); one end of the support (213) is fixedly connected to the driven gear (204); the other end of the support (213) is rotatably connected to the swing arm (210); a purge plate (208) is fixedly arranged on the side of the swing arm (210); a through groove is provided in the swing arm (210); the through groove is communicated with the purge port of the purge plate (208); the output end of the swing angle assembly is transmission-connected to the swing arm (210); the swing angle assembly is used to drive the swing arm (210) to swing; When the lower die base (301) is shifted from the cleaning position to the loading position, the first rack (203) corresponding to the lower die base (301) at the loading position first meshes with the driven gear (204) to cause the purge plate (208) to swing from the initial position to the purge position, and then the second rack (202) meshes with the driven gear (204) to cause the purge plate (208) to return to the initial position.

3. The automotive parts stamping die according to claim 2, characterized in that: The swing angle assembly comprises an inclined plate (206), a convex plate (209) and a torsion spring; the convex plate (209) is provided at one end of the purge plate (208) away from the swing arm (210); the convex plate (209) has an arc convex portion; the inclined plate (206) is fixedly arranged on a fixed plate (308) via a bracket (207); the inclined plate (206) is located above the lower die seat (301) at the cleaning position; the inclined plate (206) has an inclined surface on a side facing the workbench (1); Furthermore, along the swing direction of the purge plate (208) from the initial position to the purge position, the height of the inclined surface of the inclined plate (206) gradually decreases. When the purge plate (208) swings from the initial position to the purge position, the arc convex portion of the convex plate (209) rubs against the inclined surface of the inclined plate (206), so that the angle between the purge surface of the purge plate (208) and the upper surface of the lifting plate (309) gradually decreases. A torsion spring is sleeved at the rotation connection between the swing arm (210) and the support (213).

4. The automotive parts stamping die according to claim 3, characterized in that: The swing angle assembly further comprises a swing rod (211), a limit rod (212), a guide rod (214), a sleeve (215), a first spring (216) and a shift plate (218); the support (213) is rotatably connected to the swing rod (211); one end of the swing rod (211) away from the support (213) is rotatably connected to one end of the guide rod (214); the other end of the guide rod (214) is slidably connected to a sleeve (314); the sleeve (314) is fixedly disposed on the swing arm (210), and a first spring (216) is fixedly disposed in the inner cavity of the sleeve (314). A baffle (217) is provided, and a shift plate (218) is fixedly provided at one end of the guide rod (214) that passes through the baffle (217); an inner cavity area of ​​the sleeve (314) between the shift plate (218) and the baffle (217) is a ventilation cavity, and the ventilation cavity is connected to a through groove of the swing arm (210); a first spring (216) is sleeved on a side of the guide rod (214) that is located away from the ventilation cavity of the baffle (217); and a limit rod (212) is further provided on the support (213); the limit rods (212) are provided in pairs.

5. The automotive parts stamping die according to claim 4, characterized in that: The air pump assembly comprises an air pump and a hose (205); the output end of the air pump is in communication with the input end of the hose (205); and the output end of the hose (205) is in communication with the ventilation cavity.

6. The automotive parts stamping die according to claim 5, characterized in that: The indexing assembly comprises a support seat (303), a rotating disk (302), a driven gear ring (306), a driving gear (304) and a motor (305); the support seat (303) is fixedly arranged on the workbench (1); the rotating disk (302) is rotatably arranged on the support seat (303); a sleeve (314) is fixedly arranged at the lower end of the rotating disk (302); a driven gear ring (306) is fixedly arranged on the side of the sleeve (314); the driven gear ring (306) is meshed with the driving gear (304) for transmission; the output end of the motor (305) is fixedly connected to the driving gear (304); and a lower die seat (301) is fixedly arranged at the upper end of the rotating disk (302).

7. The automotive parts stamping die according to claim 6, characterized in that: The material lifting assembly comprises an abutment rod (313), a second spring (312) and an abutment block (310); the sleeve (314) is rotatably connected to the fixed column; the lower die seat (301) is located on one side of the fixed disk (308); an abutment rod (313) is provided on the side of the lower die seat (301) facing the fixed disk (308); the abutment rod (313) is slidably connected to the lower die seat (301); and the sliding direction of the abutment rod (313) and the lower die seat (301) is consistent with the rotation radius direction of the rotating disk (302); the abutment rod (313) is slidably connected to the lower die seat (301); and the sliding direction of the abutment rod (313) and the lower die seat (301) is consistent with the rotation radius direction of the rotating disk (302); and ... sliding direction of the abutment rod (313) and the lower die seat (301) is consistent with the rotation radius direction of the rotating disk (302); and the sliding direction of the abutment rod (313) and the lower 13) An outer abutment block (307) is fixedly provided at one end close to the fixed plate (308), an inner abutment block (311) is fixedly provided at one end of the abutment rod (313) located inside the lower die base (301), and a second spring (312) is sleeved on a portion of the abutment rod (313) located between the inner abutment block (311) and the lower die base (301), the lower end of the lifting plate (309) is slidably connected to the lower die base (301) via a fixed abutment block (310), and a wedge surface is provided at a position of the abutment block (310) close to the inner abutment block (311); When the lower die base (301) is located at the punching position, the corresponding circular arc radius of the fixed plate (308) is smaller than the corresponding circular arc radius of the fixed plate (308) when the lower die base (301) is located at the blanking position, and when the lower die base (301) is located at the punching position, the outer abutment block (307) and the fixed plate (308) are spaced apart, and the upper surface position of the lifting plate (309) is lower than the upper surface position of the lower die base (301); when the lower die base (301) is located at the blanking position, the outer abutment block (307) and the fixed plate (308) are frictionally abutted, the inner abutment block (311) and the inclined surface of the abutment block (310) are frictionally abutted, and the upper surface position of the lifting plate (309) is higher than the upper surface position of the lower die base (301); Wherein, a plurality of the lower die seats (301) are evenly distributed circumferentially around the periphery of the fixed disk (308).

8. The automotive parts stamping die according to claim 7, characterized in that: Along the rotation direction of the turntable (302), the arc side surface of the fixed disk (308) includes a first area, a second area, a third area and a fourth area, and the first area, the second area, the third area and the fourth area are arranged in sequence, the arc radius of the first area is smaller than the arc radius of the third area, and the arc radius of the second area gradually increases, and the arc radius of the fourth area gradually decreases, when the lower mold base (301) is located at the unloading position, the outer abutment block (307) is in friction contact with the arc side surface of the third area.

9. The automotive parts stamping die according to claim 8, characterized in that: A material unloading platform (4) is arranged on one side of the workbench (1), and the material unloading platform (4) is arranged on one side of a lower die base (301) located at a material unloading position. A stamping frame (61) is fixedly arranged on the workbench (1), and a mechanical arm (5) is also arranged on the stamping frame (61). A clamping claw is arranged at the output end of the mechanical arm (5), and the clamping claw is used to take the stamping part at the material unloading position out of the lower die base (301) and place it on the material unloading platform (4).

10. The automotive parts stamping die according to claim 9, characterized in that: The punching mechanism (6) comprises a hydraulic cylinder (62) and a guide column (64); the punching frame (61) is provided with the hydraulic cylinder (62); the output end of the hydraulic cylinder (62) is fixedly connected to an upper die seat (65); a punching head (63) is fixedly provided on a side of the upper die seat (65) facing the workbench (1); wherein the upper die seat (65) is telescopically connected to the punching frame (61) via the guide column (64).

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