High-precision cushioning type press die pressing device for automobile stamping parts

Abstract

The application discloses a high-precision buffer type press die pressing device for automobile stamping parts, and relates to the technical field of press die for automobile stamping parts, which comprises a main body structure, wherein the main body structure comprises a base plate and a buffer force source equipment fixed to the top end of the outer side of the base plate; one end of the buffer force source equipment is fixedly connected with a mounting seat; the outer side top end of the mounting seat is fixedly connected with a group of guide rods; the outer side top end of the base plate is fixedly connected with a group of guide shells, and the group of guide rods are respectively connected with the group of guide shells in a sliding mode; the fixing plate is placed in the mounting seat, the square clamping block is clamped into the square clamping groove, and the fixing plate and the pressing plate are fixed; when the pressing plate needs to be replaced, the pressing plate can be replaced by pulling the first pull rod, the dismounting efficiency of the pressing plate is improved, the application adopts the clamping structure, the application has higher repeated positioning accuracy, the buffer force source equipment, the guide rods and the guide shells are matched, the pressing force is stably transmitted, and the plate material is effectively prevented from being deviated, wrinkled and pressed on the surface.

Description

Technical Field

[0001] This invention relates to the field of automotive stamping die technology, and in particular to a high-precision buffer-type stamping die clamping device for automotive stamping parts. Background Technology

[0002] The high-precision buffer-type stamping die clamping device for automotive stamping parts is a precision die auxiliary mechanism that is used in the automotive sheet metal stamping process. It is usually installed inside the die holder or lower die holder of the stamping press and consists of a floating pressure plate, a multi-stage buffer structure such as nitrogen springs, disc springs, hydraulic damping components, precision guide pillars, and a limiting structure.

[0003] Currently, the floating pressure plates of high-precision buffer-type stamping die clamping devices for automotive stamping parts are generally fixed by bolt locking or integrated embedding, which makes the installation and removal of the floating pressure plates inconvenient. This means that when replacing the floating pressure plates or maintaining the die, the fasteners must be disassembled and reassembled one by one, making the installation and removal of the floating pressure plates too time-consuming. In addition, the bolt connections are prone to loosening under continuous stamping vibration, resulting in pressure plate position displacement and uneven distribution of pressure force, which can easily cause quality defects such as wrinkles, indentations, and dimensional deviations in the stamped parts. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems existing in the current high-precision buffer-type stamping die clamping device for automotive stamping parts, the present invention is proposed.

[0006] Therefore, the purpose of this invention is to provide a high-precision buffer-type press die clamping device for automotive stamping parts. This device addresses the common problem that floating pressure plates in high-precision buffer-type press die clamping devices for automotive stamping parts are typically fixed using bolt locking or integrated embedding methods. This results in poor ease of installation and removal of the floating pressure plate, requiring the individual disassembly and reassembly of fasteners during replacement or die maintenance. Consequently, the installation and disassembly of the floating pressure plate is excessively time-consuming. Furthermore, bolt connections are prone to loosening under continuous stamping vibration, leading to pressure plate displacement, uneven pressure force distribution, and quality defects such as wrinkles, indentations, and dimensional deviations in the stamped parts.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a high-precision buffer-type stamping die clamping device for automotive stamping parts, comprising a main structure, which includes a base plate and a buffer force source device fixed to the outer top of the base plate; one end of the buffer force source device is fixedly connected to a mounting base; a set of guide rods is fixedly connected to the outer top of the mounting base; a set of guide shells is fixedly connected to the outer top of the base plate, and the set of guide rods is slidably connected to the set of guide rods respectively; The disassembly and assembly structure includes a fixing plate that slides inside the mounting base and a pressure plate fixed to the bottom end of the fixing plate; a square slot is provided on the outer side of the fixing plate; a square shell is fixed to the outer side of the mounting base; a square block is fixed to the inner side of the square shell by a first spring, and the square block fits into the square slot; a first pull rod is fixed to the outer side of the square block, and one end of the first pull rod extends outside the square shell; The cleaning structure includes a square plate fixed to the outside of the mounting base; the inner side of the square plate is provided with a connecting frame via an adjustment plate; and a cleaning plate is provided inside the connecting frame.

[0008] As a preferred embodiment of the high-precision buffer-type stamping die clamping device for automotive stamping parts described in this invention, the first pull rod has a pair of circular slots on its outer side; a square block is fixedly connected to the outer side of the square shell; a circular locking block is fixedly connected to the bottom outer side of the square block by a second spring, and the circular locking block fits into the circular slots; a second pull rod is fixedly connected to the top of the circular locking block, and the top of the second pull rod passes through the square block.

[0009] As a preferred embodiment of the high-precision buffer-type stamping die clamping device for automotive stamping parts described in this invention, the following features are provided: a pair of auxiliary shells are fixedly connected to the outer bottom end of the base plate; an adjusting block is provided on the inner side of the auxiliary shell; an auxiliary column is fixedly connected to the outer bottom end of the adjusting block via a third spring, and the outer side of the auxiliary column is slidably connected to the inner side of the auxiliary shell; the bottom end of the auxiliary column is fixedly connected to the top end of the mounting base; dampers are provided at the first spring, the second spring, and the third spring.

[0010] As a preferred embodiment of the high-precision buffer-type stamping die clamping device for automotive stamping parts described in this invention, wherein: an auxiliary threaded rod is rotatably connected to the outer bottom end of the base; a pair of auxiliary shells are provided with square through slots on opposite sides; the outer sides of a pair of adjusting blocks are slidably connected to the inner sides of a pair of square through slots; a linkage plate is threadedly connected to the outer side of the auxiliary threaded rod; and the outer ends of the linkage plate are fixedly connected to a pair of adjusting blocks.

[0011] As a preferred embodiment of the high-precision buffer-type stamping die clamping device for automotive stamping parts described in this invention, the following features are provided: a driving device is fixedly connected to the outer side of the connecting frame via a fixing block; the output end of the driving device is provided with a threaded shaft, and one end of the threaded shaft passes through the cleaning plate; the threaded shaft is threadedly connected to the cleaning plate; the outer side of the cleaning plate is slidably connected to the inner side of the connecting frame; and a cleaning layer is provided on the inner side of the cleaning plate.

[0012] As a preferred embodiment of the high-precision buffer-type stamping die clamping device for automotive stamping parts described in this invention, the outer side of the adjusting plate is slidably connected to the inner side of the square plate; the adjusting plate is fixedly connected to the connecting frame; an adjusting threaded rod is rotatably connected to the top of the outer side of the square plate, and the adjusting threaded rod is threadedly connected to the adjusting plate.

[0013] As a preferred embodiment of the high-precision buffer-type stamping die clamping device for automotive stamping parts described in this invention, the cleaning plate has a sliding plate fixedly connected to its outer bottom end; the outer top end of the sliding plate is provided with a pair of scrapers via a pair of sliding rods; the pair of scrapers are respectively located on both sides of the cleaning plate.

[0014] As a preferred embodiment of the high-precision buffer-type stamping die clamping device for automotive stamping parts described in this invention, the following features are provided: a sliding groove is provided on the outer side of the connecting frame; the bottom ends of a pair of sliding rods are slidably connected to the top of the sliding plate; the pair of sliding rods are respectively fixedly connected to a pair of scrapers; an auxiliary block is fixedly connected to the outer side of the cleaning plate; a double-segment reciprocating shaft is rotatably connected to the inner side of the auxiliary block; a pair of reciprocating rods are provided on the outer side of the double-segment reciprocating shaft, and the pair of reciprocating rods are respectively fixedly connected to a pair of sliding rods; the outer sides of the pair of reciprocating rods are slidably connected to the inner side of the sliding groove; a first helical gear is fixedly connected to the outer side of the double-segment reciprocating shaft; a rotating rod is rotatably connected to the top of the outer side of the auxiliary block through a connecting block; a second helical gear is fixedly connected to the outer side of the rotating rod, and the second helical gear meshes with the first helical gear; a third gear is fixedly connected to the outer side of the rotating rod; a rack is fixedly connected to the outer side of the connecting frame, and the third gear meshes with the rack.

[0015] As a preferred embodiment of the high-precision buffer-type stamping die clamping device for automotive stamping parts described in this invention, wherein: a connecting column is fixedly connected to the outer bottom end of the slide plate; a collecting shell is fixedly connected to the outer bottom end of the connecting column; the collecting shell is located below the cleaning plate and a pair of scrapers, and the cleaning plate and a pair of scrapers are located inside the collecting shell.

[0016] The beneficial effects of this invention are: 1. By placing the fixing plate into the mounting base, the square locking block is pressed into the square locking slot by the elastic force of the first spring, thus fixing the fixing plate and the pressure plate. When the pressure plate needs to be replaced, simply pull the first pull rod to move the square locking block out of the square locking slot, releasing the fixing plate and replacing the pressure plate. This improves the efficiency of pressure plate disassembly and assembly, shortens the mold change, shape change and maintenance time. In addition, this application adopts a locking structure, which makes this application have higher repeatability positioning accuracy. With the buffer force source device, guide rod and guide shell, the buffer force source device is a nitrogen spring or hydraulic buffer cylinder, etc., to ensure the smooth transmission of pressure force, effectively avoid sheet metal displacement, wrinkling and surface damage, and ensure the forming accuracy and appearance quality of stamped parts. The vibration resistance of the locking connection is better than that of bolt fastening, and it is not easy to loosen and fail under long-term high-frequency operation. At the same time, the buffer structure can reduce the impact load on the mold and extend the overall service life of the device. 2. The circular locking block, under the elastic force of the second spring, engages with the circular slot on the first pull rod, thus fixing the first pull rod and making the square locking block and the first pull rod more stable. This prevents the first pull rod from moving accidentally due to high-frequency vibration during the stamping process, and avoids the problem of the square locking block dislodging from the square slot and causing the pressure plate to loosen. When the pressure plate needs to be removed, simply pull the second pull rod upward to disengage the circular locking block from the circular slot, and then pull the first pull rod to release the lock on the fixing plate. When the first pull rod is pulled to release the lock on the fixing plate, another circular slot moves to the bottom of the circular locking block. At this time, the second pull rod is released, and the circular locking block will fix the first pull rod through the second circular slot. Therefore, when replacing the pressure plate, the fixing plate can be placed into the mounting base without pulling the first pull rod again, realizing the convenience of one-handed operation during the pressure plate replacement process and improving work efficiency. 3. The drive device rotates the threaded shaft. Since the threaded shaft is threadedly connected to the cleaning plate, the rotation of the threaded shaft causes the cleaning plate and cleaning layer to move. The cleaning layer cleans the impurities at the bottom of the pressure plate, making it easier for the pressure plate to press the material again. When the pressure plate is applying pressure, the cleaning plate moves to the edge position without affecting the operation of the pressure plate. This keeps the pressure area of ​​the pressure plate clean and effectively prevents metal shavings, oil stains, etc. from accumulating in the pressure area, thereby reducing the risk of workpiece surface scratches or dimensional errors caused by foreign matter inclusions. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a structural diagram of the main body of the present invention; Figure 2 This is an exploded view of the mounting base and fixing plate of the present invention; Figure 3 This is an exploded view of the square shell and square card block of the present invention; Figure 4 This is an exploded structural diagram of the auxiliary shell and auxiliary column of the present invention; Figure 5 This is a partial structural diagram of the main body of the present invention; Figure 6 This is a structural diagram of the collecting shell, cleaning layer, threaded shaft, and rack of the present invention; Figure 7 This is an exploded structural diagram of the collecting shell and sliding plate of the present invention; Figure 8 This is a structural diagram of the double-segment reciprocating shaft, reciprocating rod, third gear, and rack of the present invention.

[0018] Figure Descriptions: 100. Main structure; 101. Base plate; 102. Buffer force source device; 103. Mounting base; 104. Guide rod; 105. Guide shell; 200. Assembly / disassembly structure; 201. Fixing plate; 203. Pressure plate; 204. Square slot; 205. Square shell; 206. Square block; 207. First pull rod; 300. Cleaning structure; 301. Square plate; 302. Adjusting plate; 303. Connecting frame; 304. Cleaning plate; 208. Circular slot; 209. Square block; 210. Circular block; 211. Second pull rod; 106. Auxiliary shell; 1 07. Adjusting block; 108. Auxiliary column; 109. Auxiliary threaded rod; 110. Square through slot; 111. Linkage plate; 305. Fixing block; 306. Drive device; 307. Threaded shaft; 308. Cleaning layer; 309. Adjusting threaded rod; 310. Slide plate; 311. Slide rod; 312. Scraper; 313. Sliding through slot; 314. Auxiliary block; 315. Double-stage reciprocating shaft; 316. Reciprocating rod; 317. First helical gear; 318. Rotating rod; 319. Second helical gear; 320. Third gear; 321. Rack; 322. Connecting column; 323. Collection shell. Detailed Implementation

[0019] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0021] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it an embodiment that is mutually exclusive, either alone or selectively, with other embodiments.

[0022] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0023] Example 1:

[0024] Reference Figure 1 - Figure 7 According to one embodiment of the present invention, a high-precision buffer-type stamping die clamping device for automotive stamping parts is provided, including a main structure 100, which includes a base plate 101 and a buffer force source device 102 fixed to the outer top end of the base plate 101; a mounting base 103 is fixedly connected to one end of the buffer force source device 102; a set of guide rods 104 are fixedly connected to the outer top end of the mounting base 103; a set of guide shells 105 are fixedly connected to the outer top end of the base plate 101, and the set of guide rods 104 are slidably connected to the set of guide rods 105 respectively; The disassembly and assembly structure 200 includes a fixing plate 201 slidably placed inside the mounting base 103 and a pressure plate 203 fixedly connected to the bottom end of the fixing plate 201; a square slot 204 is provided on the outer side of the fixing plate 201; a square shell 205 is fixedly connected to the outer side of the mounting base 103; a square block 206 is fixedly connected to the inner side of the square shell 205 by a first spring, and the square block 206 fits into the square slot 204; a first pull rod 207 is fixedly connected to the outer side of the square block 206, and one end of the first pull rod 207 extends outside the square shell 205; The cleaning structure 300 includes a square plate 301 fixed to the outside of the mounting base 103; a connecting frame 303 is provided on the inner side of the square plate 301 via an adjusting plate 302; and a cleaning plate 304 is provided inside the connecting frame 303.

[0025] By placing the fixing plate 201 into the mounting base 103, the square locking block 206 is pressed into the square locking groove 204 by the elastic force of the first spring, thus fixing the fixing plate 201 and the pressure plate 203. When the pressure plate 203 needs to be replaced, simply pull the first pull rod 207 to move the square locking block 206 out of the square locking groove 204, releasing the fixing plate 201 and allowing the pressure plate 203 to be replaced. This improves the disassembly and assembly efficiency of the pressure plate 203, shortens the mold change, shape change, and maintenance time, and this application adopts a locking structure. The structure enables this application to have higher repeatability and positioning accuracy. In conjunction with the buffer force source device 102, guide rod 104 and guide shell 105, the buffer force source device 102 is a nitrogen spring or hydraulic buffer cylinder, etc., to ensure the smooth transmission of the pressing force, effectively avoid sheet metal displacement, wrinkling and surface damage, ensure the forming accuracy and appearance quality of the stamped parts, and the clamping connection has better vibration resistance than bolt fastening. It is not easy to loosen and fail under long-term high-frequency operation. At the same time, the buffer structure can reduce the impact load on the mold and extend the overall service life of the device.

[0026] An auxiliary threaded rod 109 is rotatably connected to the bottom outer side of the base; a pair of auxiliary shells 106 are provided with square through slots 110 on opposite sides; the outer sides of a pair of adjusting blocks 107 are slidably connected to the inner sides of a pair of square through slots 110; a linkage plate 111 is threadedly connected to the outer side of the auxiliary threaded rod 109; the two outer ends of the linkage plate 111 are fixedly connected to a pair of adjusting blocks 107 respectively.

[0027] By rotating the auxiliary threaded rod 109, which is threadedly connected to the linkage plate 111, the rotation of the auxiliary threaded rod 109 causes the linkage plate 111 to move up and down, which in turn causes the linkage plate 111 to move up and down a pair of adjusting blocks 107, thereby adjusting the position of the third spring and adjusting its elasticity and pressure. This makes it easy to adjust when the third spring needs to generate greater or less pressure, and when the third spring has been used for a long time and its elasticity has decreased, it can be adjusted by adjusting the position of the third spring through the auxiliary threaded rod 109 to restore its elasticity.

[0028] A pair of circular slots 208 are provided on the outer side of the first pull rod 207; a square block 209 is fixedly connected to the outer side of the square shell 205; a circular block 210 is fixedly connected to the bottom outer side of the square block 209 by a second spring, and the circular block 210 fits into the circular slots 208; a second pull rod 211 is fixedly connected to the top of the circular block 210, and the top of the second pull rod 211 passes through the square block 209.

[0029] The circular locking block 210, under the elastic force of the second spring, engages with the circular slot 208 on the first pull rod 207, thus fixing the first pull rod 207. This further stabilizes the square locking block 206 and the first pull rod 207, preventing accidental movement of the first pull rod 207 due to high-frequency vibration during the stamping process. This also avoids the problem of the square locking block 206 disengaging from the square slot 204 and causing the pressure plate 203 to loosen. When it is necessary to disassemble the pressure plate 203, simply pull the second pull rod 211 upwards to disengage the circular locking block 210 from the circular slot 208, and then pull the first pull rod 211 upwards. A pull rod 207 can release the lock on the fixing plate 201. When the first pull rod 207 is pulled to release the lock on the fixing plate 201, another circular slot 208 moves to the bottom of the circular block 210. At this time, the second pull rod 211 is released, and the circular block 210 will fix the first pull rod 207 through the second circular slot 208. This allows the fixing plate 201 to be placed into the mounting base 103 without pulling the first pull rod 207 when replacing the pressure plate 203, thus achieving one-handed operation convenience during the replacement of the pressure plate 203 and improving work efficiency.

[0030] A drive device 306 is fixedly connected to the outer side of the connecting frame 303 by a fixing block 305; the output end of the drive device 306 is provided with a threaded shaft 307, and one end of the threaded shaft 307 passes through the cleaning plate 304; the threaded shaft 307 is threadedly connected to the cleaning plate 304; the outer side of the cleaning plate 304 is slidably connected to the inner side of the connecting frame 303; a cleaning layer 308 is provided on the inner side of the cleaning plate 304.

[0031] The drive device 306 drives the threaded shaft 307 to rotate. Since the threaded shaft 307 is threadedly connected to the cleaning plate 304, the rotation of the threaded shaft 307 causes the cleaning plate 304 and the cleaning layer 308 to move. The cleaning layer 308 cleans the impurities at the bottom of the pressure plate 203, making it easier for the pressure plate 203 to press the material again. When the pressure plate 203 is applying pressure, the cleaning plate 304 moves to the edge position without affecting the operation of the pressure plate. This keeps the pressing area of ​​the pressure plate 203 clean and effectively prevents metal shavings, oil stains, etc. from accumulating in the pressing area, thereby reducing the risk of workpiece surface scratches or dimensional errors caused by foreign matter inclusions.

[0032] A pair of auxiliary shells 106 are fixedly connected to the bottom outer side of the substrate 101; an adjustment block 107 is provided on the inner side of the auxiliary shell 106; an auxiliary post 108 is fixedly connected to the bottom outer side of the adjustment block 107 by a third spring, and the outer side of the auxiliary post 108 is slidably connected to the inner side of the auxiliary shell 106; the bottom end of the auxiliary post 108 is fixedly connected to the top of the mounting base 103; dampers are provided at the first spring, the second spring and the third spring.

[0033] Through the auxiliary shell 106, adjusting block 107, auxiliary column 108, and third spring, when the buffer force source device 102 drives the mounting base 103 and pressure plate to move down or up for pressing or resetting, it can effectively absorb and disperse the impact energy generated during the stamping process, improve the stability and consistency of the pressing action. The third spring, in conjunction with the damper, can suppress the inertial swaying of the mounting base 103 in high-speed reciprocating motion, reduce structural resonance caused by dynamic loads, and thus ensure that the pressure plate 203 maintains uniform contact pressure with the plate throughout the working process. At the same time, the sliding fit between the auxiliary column 108 and the auxiliary shell 106 provides additional guiding support for the mounting base 103, which works in conjunction with the guide rod 104 to enhance the rigidity and anti-eccentric load capacity of the overall structure.

[0034] The outer side of the adjusting plate 302 is slidably connected to the inner side of the square plate 301; the adjusting plate 302 is fixedly connected to the connecting frame 303; the top outer side of the square plate 301 is rotatably connected to the adjusting threaded rod 309, and the adjusting threaded rod 309 is threadedly connected to the adjusting plate 302.

[0035] By rotating the adjusting threaded rod 309, which is threadedly connected to the adjusting plate 302, the rotation of the adjusting threaded rod 309 causes the adjusting plate 302 to move up and down, which in turn causes the connecting frame 303 to move up and down. This adjusts the position of the cleaning plate 304 and the cleaning layer 308, allowing the cleaning layer 308 to adjust its position according to different pressure plates 203, thus fitting snugly against the pressure area of ​​the pressure plate 203. This ensures the adaptability and precision of the cleaning effect. Furthermore, after replacing the pressure plate 203 with a different specification, only a fine adjustment of the adjusting threaded rod 309 is needed to quickly match the position of the cleaning structure 300, improving maintenance convenience.

[0036] A sliding plate 310 is fixed to the bottom outer side of the cleaning plate 304; a pair of scrapers 312 are provided on the top outer side of the sliding plate 310 via a pair of sliding rods 311; the pair of scrapers 312 are located on both sides of the cleaning plate 304.

[0037] When the cleaning plate 304 drives the cleaning layer 308 to clean, because a pair of scrapers 312 are located on both sides of the cleaning plate 304, the scrapers 312 first contact the impurities on the pressure plate 203, so that the scrapers 312 scrape off the impurities first, and then the cleaning layer 308 wipes and cleans the impurities, realizing staged cleaning and improving cleaning efficiency and cleanliness; the scrapers 312 are made of high hardness wear-resistant material, which can effectively remove firmly attached metal shavings or oxide scale.

[0038] A connecting post 322 is fixedly connected to the outer bottom end of the slide plate 310; a collection shell 323 is fixedly connected to the outer bottom end of the connecting post 322; the collection shell 323 is located below the cleaning plate 304 and a pair of scrapers 312, and the cleaning plate 304 and a pair of scrapers 312 are located inside the collection shell 323.

[0039] A connecting post 322 is fixedly connected to the outer bottom end of the slide plate 310; a collection shell 323 is fixedly connected to the outer bottom end of the connecting post 322, so that the collection shell 323 collects the impurities that are cleaned off by the scraper 312 and the cleaning layer 308, thereby preventing impurities from falling into the stamping working area or the mold, thus preventing secondary pollution or foreign objects from being drawn into the stamping process, making the stamping operation less affected by impurities, and making the quality of the stamped products more stable.

[0040] Example 2:

[0041] Reference Figure 6 and Figure 8 The difference from Embodiment 1 is that: a sliding groove 313 is provided on the outer side of the connecting frame 303; the bottom ends of a pair of sliding rods 311 are slidably connected to the top of the slide plate 310; the pair of sliding rods 311 are respectively fixedly connected to a pair of scrapers 312; an auxiliary block 314 is fixedly connected to the outer side of the cleaning plate 304; a double-section reciprocating shaft 315 is rotatably connected to the inner side of the auxiliary block 314; a pair of reciprocating rods 316 are provided on the outer side of the double-section reciprocating shaft 315, and the pair of reciprocating rods 316 are respectively fixedly connected to a pair of sliding rods 311; a pair of The reciprocating rod 316 is slidably connected to the inner side of the sliding groove 313 on its outer side; the double-section reciprocating shaft 315 is fixedly connected to the outer side of the first helical gear 317; the outer top of the auxiliary block 314 is rotatably connected to the rotating rod 318 through the connecting block; the outer side of the rotating rod 318 is fixedly connected to the second helical gear 319, and the second helical gear 319 meshes with the first helical gear 317; the outer side of the rotating rod 318 is fixedly connected to the third gear 320; the outer side of the connecting frame 303 is fixedly connected to the rack 321, and the third gear 320 meshes with the rack 321.

[0042] While the cleaning plate 304 moves the cleaning layer 308 to clean the pressure plate 203, the cleaning plate 304 drives the rotating rod 318 and the third gear 320 on it to move through the auxiliary block 314 and the connecting block. Because the third gear 320 meshes with the rack 321, the third gear 320 rotates through the rack 321 when it moves, thereby driving the rotating rod 318 and the second helical gear on it to rotate. The second helical gear 319 meshes with the first helical gear 317. The second helical gear 319 drives the double-segment reciprocating shaft 315 to rotate through the first helical gear 317. Since the double-segment reciprocating shaft 315 is reciprocated to a pair of reciprocating rods 316, the double-segment reciprocating shaft 315 drives the pair of reciprocating rods 316 to reciprocate left and right. The reciprocating rods 316 drive the slide bar 311 and the scraper 312 to reciprocate left and right. Thus, while the cleaning layer 308 is being wiped in a straight line, the scraper 312 simultaneously performs a transverse reciprocating scraping action, effectively removing stubborn impurities attached to the surface of the pressure plate 203 in different directions and improving the cleaning effect of the scraper 312.

[0043] Working principle: First, by placing the fixing plate 201 into the mounting base 103, the square locking block 206 is pressed into the square locking groove 204 by the elastic force of the first spring, fixing the fixing plate 201 and the pressure plate 203. When the pressure plate 203 needs to be replaced, simply pull the first pull rod 207 to move the square locking block 206 out of the square locking groove 204, releasing the fixing plate 201 and replacing the pressure plate 203. This improves the disassembly and assembly efficiency of the pressure plate 203, shortens the mold change, shape change and maintenance time. In addition, this application adopts a locking structure, which makes this application have higher repeatability positioning accuracy. With the buffer force source device 102, guide rod 104 and guide shell 105, the buffer force source device 102 is a nitrogen spring or hydraulic buffer cylinder, etc., to ensure the smooth transmission of the pressing force and effectively avoid plate displacement, wrinkling and surface damage.

[0044] Secondly, the drive device 306 drives the threaded shaft 307 to rotate. Since the threaded shaft 307 is threadedly connected to the cleaning plate 304, the rotation of the threaded shaft 307 causes the cleaning plate 304 and the cleaning layer 308 to move. This allows the cleaning layer 308 to clean the impurities at the bottom of the pressure plate 203, facilitating the pressure plate 203 to perform the next pressing operation. Furthermore, when the pressure plate 203 applies pressure, the cleaning plate 304 moves to the edge position, not affecting the pressure plate operation. This keeps the pressing area of ​​the pressure plate 203 clean, effectively preventing the accumulation of metal shavings, oil, etc., in the pressing area, thereby reducing the risk of workpiece surface scratches or dimensional errors caused by foreign matter inclusions. Furthermore, by rotating the adjusting threaded rod 309, which is threadedly connected to the adjusting plate 302, the rotation of the adjusting threaded rod 309 causes the adjusting plate 302 to move up and down, which in turn causes the connecting frame 303 to move up and down. This adjusts the position of the cleaning plate 304 and the cleaning layer 308, allowing the cleaning layer 308 to adjust its position according to different pressure plates 203, thus fitting snugly against the pressure area of ​​the pressure plate 203. This ensures the adaptability and precision of the cleaning effect. Moreover, after replacing the pressure plate 203 with a different specification, only a fine adjustment of the adjusting threaded rod 309 is needed to quickly complete the position matching of the cleaning structure 300, improving maintenance convenience.

[0045] Secondly, when the cleaning plate 304 drives the cleaning layer 308 to clean, since a pair of scrapers 312 are located on both sides of the cleaning plate 304, the scrapers 312 first contact the impurities on the pressure plate 203, so that the scrapers 312 scrape off the impurities first, and then the cleaning layer 308 wipes and cleans the impurities, realizing staged cleaning and improving cleaning efficiency and cleanliness. The scrapers 312 are made of high-hardness wear-resistant materials, which can effectively remove firmly attached metal shavings or oxide scale. While the cleaning plate 304 drives the cleaning layer 308 to move and clean the pressure plate 203, the cleaning plate 304 drives the rotating rod 318 and the third gear 320 on it to move through the auxiliary block 314 and the connecting block. Since the third gear 320 meshes with the rack 321, the third gear 320 rotates through the rack 321 when it moves, thereby driving the rotating rod 318 and the second helical gear on it to rotate. Since the second helical gear 319 meshes with the first helical gear 317. The second helical gear 319 drives the double-segment reciprocating shaft 315 to rotate via the first helical gear 317. Since the double-segment reciprocating shaft 315 is reciprocatingly connected to a pair of reciprocating rods 316, the double-segment reciprocating shaft 315 drives the pair of reciprocating rods 316 to reciprocate left and right. The reciprocating rods 316 then drive the sliding rod 311 and the scraper 312 to reciprocate left and right. Thus, while the cleaning layer 308 is being wiped linearly, the scraper 312 simultaneously performs a transverse reciprocating scraping action, effectively removing impurities from the surface of the pressure plate 203. Stubborn impurities attached in the same direction improve the cleaning effect of the scraper 312, and a connecting post 322 is fixed to the outer bottom end of the slide plate 310; a collection shell 323 is fixed to the outer bottom end of the connecting post 322, so that the collection shell 323 collects the impurities that are cleaned off by the scraper 312 and the cleaning layer 308, thereby preventing impurities from falling into the stamping working area or the mold, thus preventing secondary pollution or foreign objects from being drawn into the stamping process, making the stamping operation less affected by impurities, and making the quality of the stamped products more stable.

[0046] Then, under the elastic force of the second spring, the circular locking block 210 engages with the circular slot 208 on the first pull rod 207, fixing the first pull rod 207. This makes the square locking block 206 and the first pull rod 207 more stable, preventing the first pull rod 207 from moving accidentally due to high-frequency vibration during the stamping process. This also avoids the problem of the square locking block 206 disengaging from the square slot 204 and causing the pressure plate 203 to loosen. When it is necessary to disassemble the pressure plate 203, simply pull the second pull rod 211 upwards to disengage the circular locking block 210 from the circular slot 208, and then pull... The first pull rod 207 can release the lock on the fixing plate 201. When the first pull rod 207 is pulled and the fixing plate 201 is released, another circular slot 208 moves to the bottom of the circular block 210. At this time, the second pull rod 211 is released, and the circular block 210 will fix the first pull rod 207 through the second circular slot 208. This allows the fixing plate 201 to be placed into the mounting base 103 without pulling the first pull rod 207 when replacing the pressure plate 203, thus achieving one-handed operation convenience during the replacement of the pressure plate 203 and improving work efficiency.

[0047] Finally, through the auxiliary shell 106, adjusting block 107, auxiliary column 108, and third spring, when the buffer force source device 102 drives the mounting base 103 and pressure plate to move down or up for pressing or resetting, it can effectively absorb and disperse the impact energy generated during the stamping process, improving the stability and consistency of the pressing action. The third spring, in conjunction with the damper, can suppress the inertial swaying of the mounting base 103 during high-speed reciprocating motion, reducing structural resonance caused by dynamic loads, thereby ensuring that the pressure plate 203 maintains uniform contact pressure with the plate throughout the working process. At the same time, the sliding fit between the auxiliary column 108 and the auxiliary shell 106 provides additional guiding support for the mounting base 103. Working in conjunction with the guide rod 104, it enhances the rigidity and resistance to eccentric loads of the overall structure. By rotating the auxiliary threaded rod 109, which is threadedly connected to the linkage plate 111, the rotation of the auxiliary threaded rod 109 causes the linkage plate 111 to move up and down. This causes the linkage plate 111 to move up and down a pair of adjusting blocks 107, thereby adjusting the position of the third spring. This adjusts the elasticity and pressure of the third spring, making it easy to adjust when the third spring needs to generate greater or less pressure. Also, when the third spring has been used for a long time and its elasticity has decreased, it can be adjusted by adjusting the position of the third spring through the auxiliary threaded rod 109 to restore its elasticity.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A high-precision buffer-type stamping die clamping device for automotive stamping parts, characterized in that, The high-precision buffer-type stamping die clamping device for automotive stamping parts includes: The main structure (100) includes a base plate (101) and a buffer force source device (102) fixed to the top of the outer side of the base plate (101); one end of the buffer force source device (102) is fixedly connected to a mounting base (103). The disassembly and assembly structure (200) includes a fixing plate (201) slidably placed inside the mounting base (103) and a pressure plate (203) fixedly connected to the bottom end of the fixing plate (201); a square slot (204) is provided on the outer side of the fixing plate (201); a square shell (205) is fixedly connected to the outer side of the mounting base (103); a square block (206) is fixedly connected to the inner side of the square shell (205) by a first spring, and the square block (206) fits into the square slot (204); a first pull rod (207) is fixedly connected to the outer side of the square block (206), and one end of the first pull rod (207) extends to the outside of the square shell (205); The cleaning structure (300) includes a square plate (301) fixed to the outside of the mounting base (103); the inner side of the square plate (301) is provided with a connecting frame (303) via an adjusting plate (302); a cleaning plate (304) is provided inside the connecting frame (303).

2. The high-precision buffer-type stamping die clamping device for automotive stamping parts according to claim 1, characterized in that: A pair of circular slots (208) are provided on the outer side of the first pull rod (207); a square block (209) is fixedly connected to the outer side of the square shell (205); a circular block (210) is fixedly connected to the bottom outer side of the square block (209) by a second spring, and the circular block (210) fits into the circular slot (208); a second pull rod (211) is fixedly connected to the top of the circular block (210), and the top of the second pull rod (211) passes through the square block (209); a set of guide rods (104) is fixedly connected to the top outer side of the mounting base (103); a set of guide shells (105) is fixedly connected to the top outer side of the base plate (101), and a set of guide rods (104) are slidably connected to a set of guide rods (104) respectively.

3. The high-precision buffer-type stamping die clamping device for automotive stamping parts according to claim 2, characterized in that: A pair of auxiliary shells (106) are fixed to the outer bottom of the substrate (101); an adjustment block (107) is provided on the inner side of the auxiliary shell (106); an auxiliary column (108) is fixed to the outer bottom of the adjustment block (107) by a third spring, and the outer side of the auxiliary column (108) is slidably connected to the inner side of the auxiliary shell (106); the bottom end of the auxiliary column (108) is fixed to the top of the mounting base (103); dampers are provided at the first spring, the second spring and the third spring.

4. The high-precision buffer-type stamping die clamping device for automotive stamping parts according to claim 3, characterized in that: An auxiliary threaded rod (109) is rotatably connected to the outer bottom end of the base; a square through groove (110) is provided on the opposite side of each of the pair of auxiliary shells (106); the outer sides of the pair of adjusting blocks (107) are respectively slidably connected to the inner side of the pair of square through grooves (110); a linkage plate (111) is threadedly connected to the outer side of the auxiliary threaded rod (109); the two outer ends of the linkage plate (111) are respectively fixed to the pair of adjusting blocks (107).

5. The high-precision buffer-type stamping die clamping device for automotive stamping parts according to claim 1, characterized in that: The drive device (306) is fixedly connected to the outside of the connecting frame (303) by a fixing block (305); the output end of the drive device (306) is provided with a threaded shaft (307), and one end of the threaded shaft (307) passes through the cleaning plate (304); the threaded shaft (307) is threadedly connected to the cleaning plate (304); the outside of the cleaning plate (304) is slidably connected to the inside of the connecting frame (303); a cleaning layer (308) is provided on the inside of the cleaning plate (304).

6. The high-precision buffer-type stamping die clamping device for automotive stamping parts according to claim 5, characterized in that: The outer side of the adjusting plate (302) is slidably connected to the inner side of the square plate (301); the adjusting plate (302) is fixedly connected to the connecting frame (303); the outer top of the square plate (301) is rotatably connected to an adjusting threaded rod (309), and the adjusting threaded rod (309) is threadedly connected to the adjusting plate (302).

7. The high-precision buffer-type stamping die clamping device for automotive stamping parts according to claim 6, characterized in that: A sliding plate (310) is fixed to the bottom outer side of the cleaning plate (304); a pair of scrapers (312) are provided on the top outer side of the sliding plate (310) via a pair of sliding rods (311); the pair of scrapers (312) are located on both sides of the cleaning plate (304).

8. The high-precision buffer-type stamping die clamping device for automotive stamping parts according to claim 7, characterized in that: A sliding groove (313) is provided on the outer side of the connecting frame (303); the bottom ends of the pair of sliding rods (311) are slidably connected to the top of the slide plate (310); the pair of sliding rods (311) are respectively fixedly connected to a pair of scrapers (312); an auxiliary block (314) is fixedly connected to the outer side of the cleaning plate (304); a double-section reciprocating shaft (315) is rotatably connected to the inner side of the auxiliary block (314); a pair of reciprocating rods (316) are provided on the outer side of the double-section reciprocating shaft (315), and the pair of reciprocating rods (316) are respectively fixedly connected to a pair of sliding rods (311); the pair of reciprocating rods (316) The outer sides are all slidably connected to the inner side of the sliding through groove (313); the outer side of the double-section reciprocating shaft (315) is fixedly connected to the first helical gear (317); the outer top of the auxiliary block (314) is rotatably connected to the rotating rod (318) through the connecting block; the outer side of the rotating rod (318) is fixedly connected to the second helical gear (319), and the second helical gear (319) meshes with the first helical gear (317); the outer side of the rotating rod (318) is fixedly connected to the third gear (320); the outer side of the connecting frame (303) is fixedly connected to the rack (321), and the third gear (320) meshes with the rack (321).

9. A high-precision buffer-type stamping die clamping device for automotive stamping parts according to claim 8, characterized in that: A connecting post (322) is fixed to the outer bottom end of the sliding plate (310); a collection shell (323) is fixed to the outer bottom end of the connecting post (322); the collection shell (323) is located below the cleaning plate (304) and a pair of scrapers (312), and the cleaning plate (304) and the pair of scrapers (312) are located inside the collection shell (323).

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