Fine blanking die female die grinding machining device and method

Abstract

The invention discloses a fine blanking die female die grinding machining device and method, and belongs to the technical field of grinding machining. The fine blanking die female die grinding machining device comprises a grinding mechanism used for conducting grinding machining on a fine blanking female die to be machined; a clamping mechanism used for clamping a fine blanking female die to be machined and an adjusting mechanism used for adjusting the machining position of the fine blanking female die are arranged in the shell. According to the clamping mechanism, automatic adaptation and precise positioning of fine blanking female dies with different widths and sizes are achieved, a side clamping block conducts preliminary pre-clamping and preliminary centering on a workpiece, when a clamping push plate is driven to move, an extending-out plate on the clamping push plate can push all clamping tail ends to move at the same time, and for a wide workpiece, the clamping push plate can be driven to move at the same time. All the rubber clamping blocks can make contact with and push a workpiece to the center, for a narrow workpiece, the clamping tail end which cannot make contact with the workpiece can make contact with the butt joint columns on the side clamping blocks and stop advancing after being separated from drive, pushing and clamping are completed only through the clamping tail end which can make contact with the workpiece, and full-automatic clamping and centering are achieved.

Description

Technical Field

[0001] This invention relates to the field of grinding technology, and in particular to a grinding apparatus and method for fine blanking die concave dies. Background Technology

[0002] As the core component for realizing precision blanking process, the dimensional accuracy, surface quality and cutting edge condition of the die directly determine the forming quality of the stamped parts and the service life of the die. In the manufacturing and repair process of the die, grinding is a key process, which aims to obtain extremely high contour accuracy, excellent surface finish and accurate cutting edge geometry.

[0003] Traditional fine blanking die grinding typically relies on general-purpose surface grinders or special-purpose tool grinders with indexing heads, precision vises, and other fixtures. This method usually requires repeated manual adjustments and alignment of the workpiece position during clamping, which is not only cumbersome and inefficient, but also makes it difficult to ensure the die is in an absolutely stable and ideal clamping state during processing. This is especially true for dies with complex contours or asymmetrical structures, where achieving precise, reliable, and non-damaging multi-directional clamping is even more challenging. Furthermore, the limited range of machining angle adjustment on general-purpose grinders often necessitates multiple re-clamping operations or the use of complex auxiliary tooling to complete continuous grinding of different inclined or arc surfaces of the die. This undoubtedly increases cumulative errors and affects machining accuracy and consistency.

[0004] While some existing technologies offer specialized fixtures or devices for mold processing, most are single-function, and their clamping mechanisms are often only suitable for workpieces within a specific size range. For precision blanking dies with significant width variations, either the clamping force is uneven or automatic centering and positioning cannot be achieved, leading to potential micro-displacement of the workpiece during grinding and affecting processing quality. Furthermore, the anti-loosening and locking mechanisms of traditional devices are not perfect during processing, making it difficult to maintain long-term clamping stability under vibration. In the grinding execution section, most devices lack sufficient flexibility in angle adjustment or have poor linkage between the adjustment mechanism and the clamping mechanism, making it impossible to achieve high-efficiency, highly flexible, multi-angle precision grinding. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention discloses a novel grinding device for fine blanking dies. This device needs to possess intelligent clamping functions with strong adaptability, automatic centering, and stable locking, and be compatible with die workpieces of different sizes and specifications. Simultaneously, it needs to integrate a multi-degree-of-freedom, precisely controllable grinding angle adjustment mechanism and a workpiece position adjustment mechanism, thereby achieving automated grinding of fine blanking dies with one-time clamping, multiple angles, high precision, and high efficiency. The technical solution adopted by this invention is as follows: a grinding device for fine blanking dies, comprising a grinding mechanism for grinding the fine blanking die to be processed and a housing. The housing is provided with a clamping mechanism for holding the fine blanking die to be processed and an adjustment mechanism for adjusting the processing position of the fine blanking die. The clamping mechanism includes a processing table, a lifting plate slidably installed below the processing table, two side extension frames fixedly installed on both sides of the lifting plate, multiple lifting springs between the lifting plate and the processing table, multiple long slide grooves on the processing table, clamping ends slidably installed in each long slide groove, side guide plates fixedly installed on both sides of the processing table, side clamping blocks slidably installed in the side guide plates, the upper surface of the side where the two side clamping blocks are close to each other is provided with a slope, and downward pressure ramps fixedly installed on both sides of the lifting plate, the upper surface of the downward pressure ramps is provided with a slope.

[0006] Furthermore, the clamping mechanism also includes two rubber clamping blocks fixedly installed on the clamping end, an inner top column is slidably installed inside the clamping end, an inner rotating rod is rotatably installed on the inner top column, a compression spring is provided between the inner rotating rod and the clamping end, and an upper lifting plate is slidably installed on the clamping end, the upper lifting plate is rotatably installed with the inner rotating rod.

[0007] Furthermore, the clamping mechanism also includes two clamping push plates located below the processing table. The upper surface of the clamping push plate is provided with an upper inclined surface, and an extension plate is fixedly installed on the clamping push plate. In the initial state, the lifting plate is located between the extension plate and the clamping push plate, the clamping push plate is located above the lower pressing slope block, and the lifting spring is in a stretched state.

[0008] Furthermore, the clamping mechanism also includes an outer clamping block fixedly installed on the side clamping block, a tension spring is provided between the outer clamping block and the side guide plate, multiple blocking rods are slidably installed on the side extension frame, a blocking plate is fixedly installed on the blocking rod, the upper surface of the blocking plate is provided with four chamfers, and a pop-out spring is provided between the blocking plate and the side extension frame.

[0009] Furthermore, the clamping mechanism also includes multiple arc-shaped pressure blocks slidably mounted on the side clamping block, a downward pressure rod fixedly mounted below the arc-shaped pressure block, a return spring provided between the downward pressure rod and the side clamping block, multiple docking posts slidably mounted on both sides of the side clamping block, an inner pull rod rotatably mounted inside the docking post, and the inner pull rod rotatably mounted with the downward pressure rod.

[0010] In use, push the two side clamping blocks outward, stretching the tension spring. When the arc-shaped pressure block contacts the groove on the side guide plate through which the side clamping block passes, the arc-shaped pressure block is pressed down, causing the pressure rod to descend. The return spring is compressed, and the pressure rod drives the docking column inward through the two inner pull rods, causing the docking column to retract into the side clamping block, allowing the docking column to pass smoothly through the side guide plate. Then, place the fine blanking die to be processed between the two side clamping blocks, and then release the side clamping blocks. The tension spring rebounds, causing the two side clamping blocks to clamp the fine blanking die. Since the tension springs have the same elasticity, the moving distance of the two side clamping blocks is the same at this time.

[0011] The clamping motor drives the central clamping screw to rotate, which in turn drives the other two clamping screws to rotate together via a synchronous transmission belt. The clamping screws drive the two clamping push plates to move inward simultaneously via threaded transmission. When the clamping push plates leave the top of the lower pressure ramp, the lifting spring rebounds, causing the lifting plate and the side extension frame to rise, which in turn causes the blocking plate and blocking rod to rise. The blocking plate located below the outer clamping block and the side clamping block cannot pop out, and the corresponding pop-out spring is compressed. The blocking plate not located below the outer clamping block extends to prevent the outer clamping block from moving outward, so that the side clamping block and the outer clamping block will not move outward during processing. By setting a sufficient number of blocking plates, the clamping accuracy can be guaranteed.

[0012] When the clamping push plate and the extension plate move inward, the clamping push plate pushes the lifting plate and the clamping end to move inward. If the width of the fine blanking die is greater than the width of the side clamping block, when the rubber clamping block contacts the fine blanking die, all the inner ejector pins will not contact the mating pins. At this time, the fine blanking die is clamped by multiple rubber clamping blocks. Since the two clamping push plates move inward synchronously, the rubber clamping blocks will eventually push the fine blanking die to the center position and clamp it.

[0013] If the width of the fine blanking die is less than the width of the side clamping block, when the clamping end moves inward, when the clamping end moves near the side clamping block, the inner ejector pins on the clamping ends on both sides of the fine blanking die will contact the mating pins. The elastic force of the return spring is greater than the elastic force of the compression spring. The mating pins push the inner ejector pins inward, causing the inner rotating rod to rotate. The compression spring is compressed, and the inner rotating rod causes the lifting plate to slide upward, so that the lifting plate leaves the space between the extension plate and the clamping push plate, so that the clamping end will no longer move inward. Then the clamping ends on both sides of the fine blanking die continue to be pushed inward by the clamping push plate, and finally the fine blanking die is pushed to the center position and clamped by the rubber clamping block.

[0014] After processing is completed, the clamping motor drives the two clamping push plates to move outward simultaneously. When the upper inclined surface on the clamping push plate contacts the lifting plate on the detached clamping end, the upper inclined surface will push the lifting plate to rise, causing the inner rotating rod to rotate and the compression spring to be compressed. Then it passes over the upper inclined surface, and then the compression spring rebounds, causing the lifting plate to move downward. The lifting plate reaches between the clamping push plate and the extension plate, and then the extension plate drives all the clamping ends back to the initial position.

[0015] Furthermore, the grinding mechanism includes a top frame fixedly installed inside the housing, a grinding motor fixedly installed on the top frame, a steel cable fixedly installed on the motor shaft of the grinding motor, an inner rotating block fixedly installed at the lower end of the steel cable, a grinding head fixedly installed below the inner rotating block, and an adjusting seat rotatably installed outside the inner rotating block via a bearing.

[0016] Furthermore, the grinding mechanism also includes multiple adjusting electric cylinders fixedly installed on the top frame. The top frame is provided with multiple sliding grooves, and sliding blocks are slidably installed in the sliding grooves. The sliding blocks are fixedly installed with the output end of the adjusting electric cylinders. Adjusting connecting rods are rotatably installed on the sliding blocks, and the adjusting connecting rods are rotatably installed with the adjusting seat.

[0017] When clamping the fine blanking die, the electric cylinder is fully extended to its maximum length, which drives the sliding block to slide outward along the slide groove. The sliding block drives the adjusting seat to rise through the adjusting rod, thereby driving the grinding head to rise, which facilitates clamping.

[0018] After the fine blanking die is clamped, the grinding motor drives the steel cable to rotate, which in turn drives the inner rotating block and the grinding head to rotate. The grinding head then grinds the fine blanking die. Each adjusting electric cylinder extends and retracts independently, which can drive the sliding block to slide along the slide groove. The sliding block drives the adjusting seat to deflect through the adjusting connecting rod, thereby adjusting the processing angle of the inner rotating block and the grinding head, achieving precise processing of the fine blanking die.

[0019] Furthermore, a clamping motor is fixedly installed on the processing table, and three clamping screws are rotatably installed inside the processing table. A synchronous transmission belt is wound around the three clamping screws. The middle clamping screw is fixedly installed with the motor shaft of the clamping motor. The clamping push plate and the three clamping screws form a threaded transmission. The clamping push plate is provided with an internal threaded hole, and the threads of the two internal threaded holes of the clamping push plate are in opposite directions.

[0020] Furthermore, the adjustment mechanism includes a base frame fixedly installed inside the housing, a lower adjustment motor fixedly installed on the base frame, a lower adjustment rail fixedly installed on the base frame, two lower adjustment screws rotatably installed on the base frame, one lower adjustment screw being fixedly installed to the motor shaft of the lower adjustment motor, the two lower adjustment screws rotating synchronously via a transmission belt, a lower sliding seat slidably installed on the lower adjustment rail, the lower sliding seat forming a threaded drive with the lower adjustment screws, an upper adjustment motor and an upper adjustment rail fixedly installed on the lower sliding seat, two upper adjustment screws rotatably installed on the lower sliding seat, the upper adjustment motor driving the two upper adjustment screws to rotate via a belt drive, and multiple internal thread blocks fixedly installed below the processing table, the internal thread blocks 302 slidably installed on the upper adjustment rail, the internal thread blocks forming a threaded drive with the upper adjustment screws.

[0021] The lower adjusting motor drives the lower adjusting screw to rotate, and the lower adjusting screw drives the lower sliding seat to slide along the lower adjusting track. The upper adjusting motor drives the two upper adjusting screws to rotate through belt drive, and the upper adjusting screws drive the internal thread block and the machining table to slide along the upper adjusting track, thereby adjusting the horizontal position of the machining table to facilitate the machining of the fine blanking die.

[0022] The processing method of the fine blanking die grinding device is as follows: S1, the grinding mechanism rises to its highest position; S2, the fine blanking die to be processed is placed between two side clamping blocks, and the fine blanking die is clamped and centered by the side clamping blocks; S3, the front and rear sides of the fine blanking die are clamped and centered by the clamping end; S4, the position of the processing table is adjusted by the adjusting mechanism so that the fine blanking die reaches below the grinding mechanism; S5, the fine blanking die is ground by the grinding mechanism; S6, while the fine blanking die is being ground by the grinding mechanism, the processing angle is continuously adjusted until the processing is completed; S7, the clamping end moves outward, and at the same time the side clamping blocks are pushed outward to remove the finished fine blanking die.

[0023] The beneficial effects of this invention compared with the prior art are: (1) The clamping mechanism set by this invention realizes automatic adaptation and precise positioning of fine blanking dies of different widths. The side clamping blocks can move at equal distances under the action of the tension spring, and perform preliminary pre-clamping and preliminary centering of the workpiece. When the driving clamping push plate moves, the extension plate on it can simultaneously push all clamping ends to the center. For wider workpieces, all rubber clamping blocks can contact and push the workpiece to the center. For narrower workpieces, the clamping ends that cannot contact the workpiece will automatically trigger the lifting plate to lift through contact with the docking column on the side clamping block, thereby disengaging from the drive and stopping the forward movement. Only the clamping ends that can contact the workpiece complete the final pushing and clamping. The invention achieves fully automated clamping force distribution and precise alignment, improving the consistency and accuracy of clamping; (2) When the clamping push plate begins to move inward and leaves the lower pressure block, the lifting spring is released, driving the lifting plate and its blocking rods to rise. The blocking rods located below the side clamping block are pressed down, while the blocking rods in other positions are quickly extended under the action of the pop-out spring, forming a mechanical hard barrier to prevent the side clamping block from accidentally loosening due to vibration during processing. This ensures that the lateral position of the workpiece is absolutely fixed when subjected to grinding force, effectively avoiding micro-displacement and chatter, and providing high-precision, high-surface-quality grinding. Stability; (3) The grinding motor of the grinding mechanism set in this invention drives the grinding head to rotate at high speed through a steel cable, and the multiple adjustment cylinders set around the inner rotating block can independently control their respective extension and retraction. The sliding block is driven by the electric cylinder and the motion is transmitted through the adjustment linkage. The spatial posture of the adjustment seat and the inner rotating block can be changed precisely and flexibly, so as to continuously and steplessly adjust the processing angle of the grinding head. This allows complex contours such as inclined surfaces and arc surfaces on the die to be continuously ground after one clamping, through program or manual control, without the need for secondary clamping or tooling replacement, thus ensuring the overall processing accuracy and continuity of complex surfaces. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0025] Figure 2 This is a schematic diagram of the overall structure of the present invention (internal).

[0026] Figure 3 This is a schematic diagram of the grinding mechanism structure of the present invention. Figure 1 .

[0027] Figure 4 This is a schematic diagram of the grinding mechanism structure of the present invention. Figure 2 .

[0028] Figure 5 This is a schematic diagram of the clamping mechanism of the present invention. Figure 1 .

[0029] Figure 6 This is a schematic diagram of the clamping mechanism of the present invention. Figure 2 .

[0030] Figure 7 This is a schematic diagram of the clamping mechanism of the present invention. Figure 3 .

[0031] Figure 8 This is a schematic diagram of the clamping mechanism of the present invention. Figure 4 .

[0032] Figure 9 This is a schematic diagram of the internal structure of the clamping end of the present invention.

[0033] Figure 10 This is a schematic diagram of the internal structure of the side clamping block of the present invention.

[0034] Figure 11 This is a schematic diagram of the adjustment mechanism of the present invention.

[0035] Reference numerals: 101-Outer shell; 102-Top frame; 103-Grinding motor; 104-Adjusting electric cylinder; 105-Adjusting seat; 106-Steel cable; 107-Inner rotating block; 108-Grinding head; 109-Adjusting connecting rod; 110-Slide groove; 111-Sliding block; 201-Machining table; 202-Lifting plate; 203-Lifting spring; 204-Clamping motor; 205-Clamping screw; 206-Synchronous transmission belt; 207-Clamping push plate; 208-Upper inclined surface; 209-Extending plate; 210-Clamping end; 211-Inner top column; 212-Inner rotating rod; 213-Compression spring; 214-Upper lifting plate; 215-Side clamping block; 216-Connecting post; 217-Arc pressure block; 218-Lower pressure rod; 219-Inner pull rod; 220-Outer clamping block; 221-Tension spring; 222-Side extension frame; 223-Blocking plate; 224-Blocking rod; 225-Pop-up spring; 226-Lower pressure ramp; 227-Rubber clamping block; 228-Reset spring; 229-Side guide plate; 301-Base frame; 302-Internal threaded block; 303-Lower adjusting motor; 304-Lower adjusting screw; 305-Lower adjusting track; 306-Lower sliding seat; 307-Upper adjusting motor; 308-Upper adjusting screw; 309-Upper adjusting track. Detailed Implementation

[0036] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0037] Example: Reference Figures 1-11 A fine blanking die grinding processing device includes a grinding mechanism for grinding the fine blanking die to be processed and a housing 101. The housing 101 is provided with a clamping mechanism for clamping the fine blanking die to be processed and an adjustment mechanism for adjusting the processing position of the fine blanking die. The clamping mechanism includes a processing table 201, a lifting plate 202 slidably installed below the processing table 201, two side extension brackets 222 fixedly installed on both sides of the lifting plate 202, multiple lifting springs 203 between the lifting plate 202 and the processing table 201, multiple long slide grooves provided on the processing table 201, and clamping ends 210 slidably installed in each long slide groove, side guide plates 229 fixedly installed on both sides of the processing table 201, and side clamping blocks 215 slidably installed in the side guide plates 229, with a slope on the upper surface of the side where the two side clamping blocks 215 are close to each other, and a downward pressing slope block 226 fixedly installed on both sides of the lifting plate 202, with a slope on the upper surface of the downward pressing slope block 226.

[0038] like Figures 5-10 As shown, the clamping mechanism also includes two rubber clamping blocks 227 fixedly installed on the clamping end 210. An inner top column 211 is slidably installed inside the clamping end 210. An inner rotating rod 212 is rotatably installed on the inner top column 211. A compression spring 213 is provided between the inner rotating rod 212 and the clamping end 210. An upper lifting plate 214 is slidably installed on the clamping end 210. The upper lifting plate 214 is rotatably installed with the inner rotating rod 212.

[0039] like Figures 5-10 As shown, the clamping mechanism also includes two clamping push plates 207 located below the processing table 201. The upper surface of the clamping push plate 207 is provided with an upper inclined surface 208. An extension plate 209 is fixedly installed on the clamping push plate 207. In the initial state, the lifting plate 214 is located between the extension plate 209 and the clamping push plate 207. The clamping push plate 207 is located above the lower pressure slope 226, and the lifting spring 203 is in a stretched state.

[0040] like Figures 5-10 As shown, the clamping mechanism also includes an outer clamping block 220 fixedly installed on the side clamping block 215. A tension spring 221 is provided between the outer clamping block 220 and the side guide plate 229. Multiple blocking rods 224 are slidably installed on the side extension frame 222. A blocking plate 223 is fixedly installed on the blocking rod 224. The upper surface of the blocking plate 223 is provided with four chamfers. A pop-out spring 225 is provided between the blocking plate 223 and the side extension frame 222.

[0041] like Figures 5-10 As shown, the clamping mechanism also includes multiple arc-shaped pressure blocks 217 slidably mounted on the side clamping block 215. A downward pressure rod 218 is fixedly mounted below the arc-shaped pressure block 217. A return spring 228 is provided between the downward pressure rod 218 and the side clamping block 215. Multiple docking posts 216 are slidably mounted on both sides of the side clamping block 215. An inner pull rod 219 is rotatably mounted inside the docking post 216. The inner pull rod 219 is rotatably mounted with the downward pressure rod 218.

[0042] In use, the two side clamping blocks 215 are pushed outward, and the tension spring 221 is stretched. When the arc-shaped pressure block 217 contacts the groove of the side guide plate 229 through which the side clamping block 215 passes, the arc-shaped pressure block 217 is pressed down, causing the lowering rod 218 to descend and the return spring 228 to be compressed. The lowering rod 218 drives the docking post 216 to move inward through the two inner pull rods 219, so that the docking post 216 is retracted into the side clamping block 215, allowing the docking post 216 to pass smoothly through the side guide plate 229. Then, the fine blanking die to be processed is placed between the two side clamping blocks 215, and then the side clamping blocks 215 are released, and the tension spring 221 rebounds, so that the two side clamping blocks 215 clamp the fine blanking die. Since the elastic force of the tension spring 221 is the same, the moving distance of the two side clamping blocks 215 is the same at this time.

[0043] like Figures 5-10 As shown, a clamping motor 204 is fixedly installed on the processing table 201. Three clamping screws 205 are rotatably installed inside the processing table 201. A synchronous transmission belt 206 is wound around the three clamping screws 205. The middle clamping screw 205 is fixedly installed with the motor shaft of the clamping motor 204. The clamping push plate 207 forms a threaded transmission with the three clamping screws 205. The clamping push plate 207 is provided with an internal threaded hole, and the threads of the two clamping push plates 207 are in opposite directions.

[0044] The clamping motor 204 drives the middle clamping screw 205 to rotate, which in turn drives the other two clamping screws 205 to rotate together via the synchronous transmission belt 206. The clamping screws 205 drive the two clamping push plates 207 to move inward simultaneously via threaded transmission. When the clamping push plates 207 leave the top of the lower pressure ramp 226, the lifting spring 203 rebounds, causing the lifting plate 202 and the side extension frame 222 to rise, which in turn causes the blocking plate 223 and the blocking rod 224 to rise. The blocking plate 223 located below the outer clamping block 220 and the side clamping block 215 cannot pop out, and the corresponding pop-out spring 225 is compressed. The blocking plate 223 not located below the outer clamping block 220 extends to prevent the outer clamping block 220 from moving outward, so that the side clamping block 215 and the outer clamping block 220 will not move outward during processing. By setting a sufficient number of blocking plates 223, the clamping accuracy can be guaranteed.

[0045] When the clamping push plate 207 and the extension plate 209 move inward, the clamping push plate 207 pushes the lifting plate 214 and the clamping end 210 to move inward. If the width of the fine blanking die is greater than the width of the side clamping block 215, when the rubber clamping block 227 contacts the fine blanking die, all the inner ejector pins 211 will not contact the mating pins 216. At this time, the fine blanking die is clamped by multiple rubber clamping blocks 227. Since the two clamping push plates 207 move inward synchronously, the rubber clamping blocks 227 will eventually push the fine blanking die to the center position and clamp it.

[0046] If the width of the fine blanking die is less than the width of the side clamping block 215, when the clamping end 210 moves inward, when the clamping end 210 moves to the vicinity of the side clamping block 215, the inner top post 211 on the clamping end 210 facing the side of the side clamping block 215 will contact the docking post 216. The elastic force of the return spring 228 is greater than the elastic force of the compression spring 213. The docking post 216 pushes the inner top post 211 inward, causing the inner rotating rod 212 to rotate. The compression spring 213 is compressed, and the inner rotating rod 212 causes the upper lifting plate 214 to slide upward, so that the upper lifting plate 214 leaves the space between the extension plate 209 and the clamping push plate 207, so that the clamping end 210 will no longer move inward. Then the clamping ends 210 on both sides of the fine blanking die continue to be pushed inward by the clamping push plate 207, and finally the fine blanking die is pushed to the center position and clamped by the rubber clamping block 227.

[0047] After processing is completed, the clamping motor 204 drives the two clamping push plates 207 to move outward simultaneously. When the upper inclined surface 208 on the clamping push plate 207 contacts the lifting plate 214 on the disengaged clamping end 210, the extension plate 209 drives all clamping ends 210 back to the initial position. When the clamping end 210 returns to the initial position and cannot move horizontally, the clamping push plate 207 continues to move. The upper inclined surface 208 pushes the lifting plate 214 upward, causing the inner rotating rod 212 to rotate and compress the compression spring 213. Then it passes over the upper inclined surface 208, and then the compression spring 213 rebounds, causing the lifting plate 214 to move downward. The lifting plate 214 reaches between the clamping push plate 207 and the extension plate 209.

[0048] like Figure 3 , Figure 4 As shown, the grinding mechanism includes a top frame 102 fixedly installed inside the housing 101. A grinding motor 103 is fixedly installed on the top frame 102. A steel cable 106 is fixedly installed on the motor shaft of the grinding motor 103. An inner rotating block 107 is fixedly installed at the lower end of the steel cable 106. A grinding head 108 is fixedly installed below the inner rotating block 107. An adjusting seat 105 is rotatably installed on the outside of the inner rotating block 107 through a bearing.

[0049] like Figure 3 , Figure 4 As shown, the grinding mechanism also includes multiple adjusting electric cylinders 104 fixedly installed on the top frame 102. Multiple sliding grooves 110 are provided on the top frame 102. Sliding blocks 111 are slidably installed in the sliding grooves 110. The sliding blocks 111 are fixedly installed with the output end of the adjusting electric cylinders 104. An adjusting connecting rod 109 is rotatably installed on the sliding block 111. The adjusting connecting rod 109 is rotatably installed with the adjusting seat 105.

[0050] The inner rotating block 107 and the adjusting seat 105 are rotatably connected by a bearing. The outer ring of the bearing is fixed to the adjusting seat 105, and the inner ring of the bearing is fixed to the inner rotating block 107, so that the inner rotating block 107 and the adjusting seat 105 can rotate relative to each other and move axially together.

[0051] When clamping the fine blanking die, the electric cylinder 104 is fully extended to its maximum length, which drives the sliding block 111 to slide outward along the slide groove 110. The sliding block 111 drives the adjusting seat 105 to rise through the adjusting rod 109, thereby driving the grinding head 108 to rise, which facilitates clamping.

[0052] After the fine blanking die is clamped, the grinding motor 103 drives the steel cable 106 to rotate, and the steel cable 106 drives the inner rotating block 107 and the grinding head 108 to rotate. The grinding head 108 grinds the fine blanking die. Each adjusting electric cylinder 104 extends and retracts independently, which can drive the sliding block 111 to slide along the slide groove 110. The sliding block 111 drives the adjusting seat 105 to deflect through the adjusting connecting rod 109, thereby adjusting the processing angle of the inner rotating block 107 and the grinding head 108, so as to achieve precise processing of the fine blanking die.

[0053] like Figure 11 As shown, the adjustment mechanism includes a base frame 301 fixedly installed inside the housing 101. A lower adjustment motor 303 is fixedly installed on the base frame 301. A lower adjustment rail 305 is fixedly installed on the base frame 301. Two lower adjustment screws 304 are rotatably installed on the base frame 301. One lower adjustment screw 304 is fixedly installed to the motor shaft of the lower adjustment motor 303. The two lower adjustment screws 304 rotate synchronously via a transmission belt. A lower sliding seat 306 is slidably installed on the lower adjustment rail 305. The upper adjusting motor 307 and the upper adjusting rail 309 are fixedly installed on the lower sliding seat 306, forming a threaded transmission with the lower adjusting screw 304. Two upper adjusting screws 308 are rotatably installed on the lower sliding seat 306. The upper adjusting motor 307 drives the two upper adjusting screws 308 to rotate through belt transmission. Multiple internal thread blocks 302 are fixedly installed below the processing table 201. The internal thread blocks 302 are slidably installed on the upper adjusting rail 309, and the internal thread blocks 302 and the upper adjusting screws 308 form a threaded transmission.

[0054] The lower adjusting motor 303 drives the lower adjusting screw 304 to rotate, and the lower adjusting screw 304 drives the lower sliding seat 306 to slide along the lower adjusting track 305. The upper adjusting motor 307 drives the two upper adjusting screws 308 to rotate through belt drive. The upper adjusting screws 308 drive the internal thread block 302 and the processing table 201 to slide along the upper adjusting track 309, thereby adjusting the horizontal position of the processing table 201 to facilitate the processing of the fine blanking die.

[0055] The processing method of the fine blanking die grinding device is as follows: S1, the grinding mechanism rises to its highest position; S2, the fine blanking die to be processed is placed between two side clamping blocks 215, and the fine blanking die is clamped and centered by the side clamping blocks 215; S3, the front and rear sides of the fine blanking die are clamped and centered by the clamping end 210; S4, the position of the processing table 201 is adjusted by the adjusting mechanism so that the fine blanking die reaches below the grinding mechanism; S5, the fine blanking die is ground by the grinding mechanism; S6, while the fine blanking die is being ground by the grinding mechanism, the processing angle is continuously adjusted until the processing is completed; S7, the clamping end 210 moves outward, and the side clamping blocks 215 are pushed outward to remove the processed fine blanking die.

[0056] Working principle: When clamping the fine blanking die, the electric cylinder 104 is fully extended to its maximum length, which drives the sliding block 111 to slide outward along the slide groove 110. The sliding block 111 drives the adjusting seat 105 to rise through the adjusting rod 109, thereby driving the grinding head 108 to rise, which facilitates clamping. Pushing the two side clamping blocks 215 outwards stretches the tension spring 221. When the arc-shaped pressure block 217 contacts the groove of the side guide plate 229 through which the side clamping block 215 passes, the arc-shaped pressure block 217 is pressed down, causing the pressure rod 218 to descend and the return spring 228 to be compressed. The pressure rod 218 drives the docking post 216 to move inwards through the two inner pull rods 219, so that the docking post 216 is retracted into the side clamping block 215, allowing the docking post 216 to pass smoothly through the side guide plate 229. Then, the fine blanking die to be processed is placed between the two side clamping blocks 215. Then, the side clamping blocks 215 are released, and the tension spring 221 rebounds, so that the two side clamping blocks 215 clamp the fine blanking die. Since the elastic force of the tension spring 221 is the same, the moving distance of the two side clamping blocks 215 is the same.

[0057] The clamping motor 204 drives the middle clamping screw 205 to rotate, which in turn drives the other two clamping screws 205 to rotate together via the synchronous transmission belt 206. The clamping screws 205 drive the two clamping push plates 207 to move inward simultaneously via threaded transmission. When the clamping push plates 207 leave the top of the lower pressure ramp 226, the lifting spring 203 rebounds, causing the lifting plate 202 and the side extension frame 222 to rise, which in turn causes the blocking plate 223 and the blocking rod 224 to rise. The blocking plate 223 located below the outer clamping block 220 and the side clamping block 215 cannot pop out, and the corresponding pop-out spring 225 is compressed. The blocking plate 223 not located below the outer clamping block 220 extends to prevent the outer clamping block 220 from moving outward, so that the side clamping block 215 and the outer clamping block 220 will not move outward during processing. By setting a sufficient number of blocking plates 223, the clamping accuracy can be guaranteed.

[0058] When the clamping push plate 207 and the extension plate 209 move inward, the clamping push plate 207 pushes the lifting plate 214 and the clamping end 210 to move inward. If the width of the fine blanking die is greater than the width of the side clamping block 215, when the rubber clamping block 227 contacts the fine blanking die, all the inner ejector pins 211 will not contact the mating pins 216. At this time, the fine blanking die is clamped by multiple rubber clamping blocks 227. Since the two clamping push plates 207 move inward synchronously, the rubber clamping blocks 227 will eventually push the fine blanking die to the center position and clamp it.

[0059] If the width of the fine blanking die is less than the width of the side clamping block 215, when the clamping end 210 moves inward, when the clamping end 210 moves to the vicinity of the side clamping block 215, the inner top post 211 on the clamping end 210 facing the side of the side clamping block 215 will contact the docking post 216. The elastic force of the return spring 228 is greater than the elastic force of the compression spring 213. The docking post 216 pushes the inner top post 211 inward, causing the inner rotating rod 212 to rotate. The compression spring 213 is compressed, and the inner rotating rod 212 causes the upper lifting plate 214 to slide upward, so that the upper lifting plate 214 leaves the space between the extension plate 209 and the clamping push plate 207, so that the clamping end 210 will no longer move inward. Then the clamping ends 210 on both sides of the fine blanking die continue to be pushed inward by the clamping push plate 207, and finally the fine blanking die is pushed to the center position and clamped by the rubber clamping block 227.

[0060] The lower adjusting motor 303 drives the lower adjusting screw 304 to rotate, and the lower adjusting screw 304 drives the lower sliding seat 306 to slide along the lower adjusting track 305. The upper adjusting motor 307 drives the two upper adjusting screws 308 to rotate through belt drive. The upper adjusting screws 308 drive the internal thread block 302 and the processing table 201 to slide along the upper adjusting track 309, thereby adjusting the horizontal position of the processing table 201 to facilitate the processing of the fine blanking die.

[0061] After the fine blanking die is clamped, the grinding motor 103 drives the steel cable 106 to rotate, and the steel cable 106 drives the inner rotating block 107 and the grinding head 108 to rotate. The grinding head 108 grinds the fine blanking die. Each adjusting electric cylinder 104 extends and retracts independently, which can drive the sliding block 111 to slide along the slide groove 110. The sliding block 111 drives the adjusting seat 105 to deflect through the adjusting connecting rod 109, thereby adjusting the processing angle of the inner rotating block 107 and the grinding head 108, so as to achieve precise processing of the fine blanking die.

[0062] After processing is completed, the clamping motor 204 drives the two clamping push plates 207 to move outward simultaneously. When the upper inclined surface 208 on the clamping push plate 207 contacts the lifting plate 214 on the disengaged clamping end 210, the upper inclined surface 208 will push the lifting plate 214 to rise, causing the inner rotating rod 212 to rotate and compress the compression spring 213. Then it passes over the upper inclined surface 208, and then the compression spring 213 rebounds, causing the lifting plate 214 to move downward. The lifting plate 214 reaches between the clamping push plate 207 and the extension plate 209, and then the extension plate 209 drives all the clamping ends 210 back to the initial position.

[0063] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the present invention based on the technical solution and inventive concept of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A grinding apparatus for fine blanking die dies, comprising a grinding mechanism for grinding the fine blanking die to be processed and a housing (101), characterized in that: The outer casing (101) is provided with a clamping mechanism for clamping the fine blanking die to be processed and an adjustment mechanism for adjusting the processing position of the fine blanking die. The clamping mechanism includes a processing table (201), a lifting plate (202) is slidably installed below the processing table (201), two side extension frames (222) are fixedly installed on both sides of the lifting plate (202), a plurality of lifting springs (203) are provided between the lifting plate (202) and the processing table (201), a plurality of long slide grooves are provided on the processing table (201), and clamping ends (210) are slidably installed in each of the long slide grooves. Side guide plates (229) are fixedly installed on both sides of the processing table (201), and side clamping blocks (215) are slidably installed in the side guide plates (229). The upper surface of the side where the two side clamping blocks (215) are close to each other is provided with a slope. Downward pressure blocks (226) are fixedly installed on both sides of the lifting plate (202), and the upper surface of the downward pressure blocks (226) is provided with a slope.

2. The precision blanking die grinding device according to claim 1, characterized in that: The clamping mechanism further includes a rubber clamping block (227) fixedly installed on the clamping end (210). An inner top column (211) is slidably installed inside the clamping end (210). An inner rotating rod (212) is rotatably installed on the inner top column (211). A compression spring (213) is provided between the inner rotating rod (212) and the clamping end (210). An upper lifting plate (214) is slidably installed on the clamping end (210). The upper lifting plate (214) is rotatably installed with the inner rotating rod (212).

3. The precision blanking die grinding device according to claim 2, characterized in that: The clamping mechanism also includes two clamping push plates (207) located below the processing table (201). The upper surface of the clamping push plate (207) is provided with an upper inclined surface (208). An extension plate (209) is fixedly installed on the clamping push plate (207). In the initial state, the lifting plate (214) is located between the extension plate (209) and the clamping push plate (207). The clamping push plate (207) is located above the lower pressure ramp (226). The lifting spring (203) is in a stretched state.

4. The precision blanking die grinding device according to claim 3, characterized in that: The clamping mechanism also includes an outer clamping block (220) fixedly installed on the side clamping block (215). A tension spring (221) is provided between the outer clamping block (220) and the side guide plate (229). Multiple blocking rods (224) are slidably installed on the side extension frame (222). A blocking plate (223) is fixedly installed on the blocking rod (224). The upper surface of the blocking plate (223) is provided with four chamfers. A pop-out spring (225) is provided between the blocking plate (223) and the side extension frame (222).

5. The precision blanking die grinding apparatus according to claim 4, characterized in that: The clamping mechanism further includes multiple arc-shaped pressure blocks (217) slidably mounted on the side clamping block (215). A lower pressure rod (218) is fixedly mounted below the arc-shaped pressure block (217). A return spring (228) is provided between the lower pressure rod (218) and the side clamping block (215). Multiple docking posts (216) are slidably mounted on both sides of the side clamping block (215). An inner pull rod (219) is rotatably mounted inside the docking post (216). The inner pull rod (219) is rotatably mounted with the lower pressure rod (218).

6. The precision blanking die grinding device according to claim 1, characterized in that: The grinding mechanism includes a top frame (102) fixedly installed inside the housing (101), a grinding motor (103) fixedly installed on the top frame (102), a steel cable (106) fixedly installed on the motor shaft of the grinding motor (103), an inner rotating block (107) fixedly installed at the lower end of the steel cable (106), a grinding head (108) fixedly installed below the inner rotating block (107), and an adjusting seat (105) rotatably installed on the outside of the inner rotating block (107) through a bearing.

7. The precision blanking die grinding apparatus according to claim 6, characterized in that: The grinding mechanism also includes a plurality of adjusting electric cylinders (104) fixedly installed on the top frame (102). The top frame (102) is provided with a plurality of sliding grooves (110). A sliding block (111) is slidably installed in the sliding groove (110). The sliding block (111) is fixedly installed with the output end of the adjusting electric cylinder (104). An adjusting connecting rod (109) is rotatably installed on the sliding block (111). The adjusting connecting rod (109) is rotatably installed with the adjusting seat (105).

8. The precision blanking die grinding apparatus according to claim 3, characterized in that: A clamping motor (204) is fixedly installed on the processing table (201). Three clamping screws (205) are rotatably installed inside the processing table (201). A synchronous transmission belt (206) is wound around the three clamping screws (205). The middle clamping screw (205) is fixedly installed with the motor shaft of the clamping motor (204). The clamping push plate (207) forms a threaded transmission with the three clamping screws (205). The clamping push plate (207) is provided with an internal threaded hole, and the threads of the two internal threaded holes of the clamping push plate (207) are in opposite directions.

9. The precision blanking die grinding apparatus according to claim 1, characterized in that: The adjustment mechanism includes a base frame (301) fixedly installed inside the housing (101). A lower adjustment motor (303) is fixedly installed on the base frame (301). A lower adjustment track (305) is fixedly installed on the base frame (301). Two lower adjustment screws (304) are rotatably installed on the base frame (301). One of the lower adjustment screws (304) is fixedly installed with the motor shaft of the lower adjustment motor (303). The two lower adjustment screws (304) rotate synchronously through a transmission belt. A lower sliding seat (306) is slidably installed on the lower adjustment track (305). The lower sliding seat (306) is connected to the lower adjustment motor (303). The lower adjusting screw (304) forms a threaded transmission. The lower sliding seat (306) is fixedly mounted with an upper adjusting motor (307) and an upper adjusting rail (309). Two upper adjusting screws (308) are rotatably mounted on the lower sliding seat (306). The upper adjusting motor (307) drives the two upper adjusting screws (308) to rotate through a belt drive. Multiple internal thread blocks (302) are fixedly mounted below the processing table (201). The internal thread blocks (302) are slidably mounted on the upper adjusting rail (309). The internal thread blocks (302) and the upper adjusting screws (308) form a threaded transmission.

10. The processing method of the fine blanking die grinding device according to claim 1, characterized in that, The steps are as follows: S1, the grinding mechanism rises to its highest position; S2. Place the fine blanking die to be processed between two side clamping blocks (215), and clamp the fine blanking die on both sides and center it through the side clamping blocks (215); S3. The front and rear sides of the fine blanking die are clamped and centered by the clamping end (210); S4. Adjust the position of the processing table (201) by adjusting the mechanism so that the fine blanking die reaches below the grinding mechanism; S5. Grinding process is performed on the fine blanking die by a grinding mechanism; S6. When the grinding mechanism is grinding the fine blanking die, the grinding angle is continuously adjusted until the grinding is completed. S7. The clamping end (210) moves outward, and at the same time pushes the side clamping block (215) outward to remove the finished fine blanking die.

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