A multi-point stamping forming device for mechanical die production

Abstract

The present application relates to the technical field of mechanical die machining, and particularly relates to a multi-point stamping forming device for mechanical die production. The device comprises a base, an annular chip collecting table is arranged on the base, four groups of stand columns are fixedly connected to the annular chip collecting table, a top plate is fixedly connected to the top ends of the four groups of stand columns, a hydraulic cylinder is installed on the top plate, the positions of the lower pressing blocks are adjusted through two groups of longitudinal electric sliding tables and a transverse electric sliding table, the lower pressing blocks drive the fixed-point stamping part to move downward through the first electric push rods, the fixed-point stamping part can independently extend out of the stamping head at a specified position, the automatic locking function is realized through the combination of the wedge-shaped clamping blocks and the abutting springs, the stamping head is fixed, the upper die assembly is driven to move downward through the hydraulic cylinder, the stamping head performs the fixed-point stamping operation on the metal plate, and thus the automatic adjustment of the stamping position is realized, the work load of workers is reduced, and the stamping precision is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of mechanical mold processing, and particularly relates to a multi-point stamping forming device for mechanical mold production. BACKGROUND

[0002] A mold is a structure of various molds and parts used in industrial production for injection molding, blow molding, extrusion, die casting, smelting, stamping and other methods to obtain the required products. It is an important part of industrial production. The mold has many components, in addition to the main body which is originally milled into shape, there are water channels, guide structures, buffer structures, and ejection structures, etc. composed of various components. Some structures need to be punched out of the specified shape or punched out of the hole by stamping structure during production.

[0003] The traditional mold stamping device can only perform single-point stamping operation at a time. When multiple-point stamping is required on the surface of the mold, the stamping position of the mold needs to be adjusted manually, and multiple stamping operations are required, thereby increasing the workload of workers and affecting the stamping efficiency.

[0004] After searching, the authorized patent document with the publication number CN221983678U and the publication date of 2024.11.12 discloses a stamping device for metal mold production, which comprises a base, a lower mold fixedly installed at the top of the four corners of the base through a first stand, an upper mold movably installed at the top of the lower mold, a top plate fixedly installed at the top of the four corners of the upper mold through a second stand, and an adjusting mechanism arranged inside and outside the shaft support. The utility model discloses a cooperation between the handle, the worm, the worm wheel, the threaded rod, the supporting plate, the movable sleeve, the supporting plate, the stamping block and the stamping groove. The movable sleeve at the top of the stamping block can linearly push the stamping block downward. The exposed part of the stamping block is matched with the adjusted depth of the stamping groove. The metal mold can be stamped to different depths through adjustment, thereby improving the application range and avoiding resource waste.

[0005] However, the device still has the following defects: although the metal mold can be stamped to different depths, the device can only perform single-point stamping operation at a time. When multiple-point stamping is required on the surface of the mold, the stamping position of the mold needs to be adjusted manually, and multiple stamping operations are required, thereby increasing the workload of workers and affecting the stamping efficiency. SUMMARY

[0006] In view of the above problems, the present application provides a multi-point stamping forming device for mechanical mold production, which comprises a base, an annular chip collecting table is arranged on the base, four groups of stand columns are fixedly connected to the annular chip collecting table, a top plate is fixedly connected to the top ends of the four groups of stand columns, a hydraulic cylinder is installed on the top plate, an upper mold assembly is drivingly connected to the output end of the hydraulic cylinder, the upper mold assembly comprises a box body;

[0007] A point position adjusting mechanism is arranged at the top end of the inner wall of the box body, the point position adjusting mechanism comprises two groups of longitudinal electric sliding tables and a transverse electric sliding table, a first electric push rod is drivingly connected to the output end of the transverse electric sliding table, and a lower pressing block is drivingly connected to the output end of the first electric push rod;

[0008] A partition plate is fixedly connected to the inner wall of the box body, and a plurality of groups of fixed-point stamping parts are arranged on the partition plate;

[0009] A reset driving mechanism and a reset mechanism are arranged on the partition plate, a chip suction mechanism is arranged between the partition plate and the bottom end of the inner wall of the box body, and the chip suction mechanism and one end of a chip guide hose are in communication with each other;

[0010] A loading table is arranged at the center of the annular chip collecting table, and a lower mold base is arranged on the loading table.

[0011] Further, four groups of limiting blocks are fixedly connected to the side walls of the box body, limiting holes are formed in the four groups of limiting blocks, buffer springs are arranged at the bottom ends of the four groups of limiting blocks, the loading table is fixedly connected to the bottom ends of the four groups of buffer springs, four groups of directional shafts are arranged on the loading table, the four groups of directional shafts are respectively movably attached to the limiting holes in the corresponding group of limiting blocks, and the four groups of buffer springs are respectively sleeved on the corresponding group of directional shafts.

[0012] Further, a plurality of groups of through holes are formed in the partition plate, the plurality of groups of through holes are in one-to-one correspondence with the plurality of groups of fixed-point stamping parts, a plurality of groups of stamping holes are formed in the bottom end of the inner wall of the box body, and the plurality of groups of stamping holes are arranged directly below the plurality of groups of fixed-point stamping parts.

[0013] Further, the fixed-point stamping part comprises a sliding shaft, the sliding shaft is movably attached to the corresponding group of through holes, a stamping head is fixedly connected to the bottom end of the sliding shaft, a linkage block is fixedly connected to the top end of the sliding shaft, a reset spring is arranged between the linkage block and the partition plate, and the reset spring is sleeved on the sliding shaft.

[0014] Further, the sliding shaft is provided with a plurality of sets of wedge-shaped clamping blocks, a plurality of sets of displacement grooves are formed in the sliding shaft, and the plurality of sets of displacement grooves correspond to the plurality of sets of wedge-shaped clamping blocks one by one; the side wall of the wedge-shaped clamping block is fixedly connected with a linkage shaft; a plurality of sets of sliding grooves are formed in the sliding shaft, and the plurality of sets of sliding grooves are movably attached to a corresponding set of linkage shafts; a resisting spring is arranged between the wedge-shaped clamping block and the inner wall of the displacement groove; and the resisting spring is sleeved on the linkage shaft.

[0015] Further, the reset mechanism includes a plurality of sets of extrusion rings, a connecting plate is fixedly connected between each adjacent two sets of extrusion rings, and a transmission plate is fixedly connected between a plurality of sets of extrusion rings arranged at the two side edges.

[0016] Further, the reset driving mechanism includes two sets of resisting plates and two sets of cams, the bottom end of each of the two sets of resisting plates is provided with two sets of connecting shafts, the bottom end of each of the two sets of connecting shafts penetrates the partition plate and is fixedly connected to the top end of the transmission plate, two sets of compression springs are arranged between the resisting plate and the partition plate, and each of the two sets of compression springs is sleeved on a corresponding set of connecting shafts.

[0017] Further, two sets of transmission grooves are formed in the partition plate, each of the two sets of cams is rotationally connected to the inner wall of a corresponding set of transmission grooves, each of the two sets of cams is in abutment with a corresponding set of resisting plates, a rotating shaft is fixedly connected to the center of each of the two sets of cams, a motor is installed on the partition plate, and the output end of the motor is in transmission connection with the center of a set of cams.

[0018] Further, the chip suction mechanism includes a chip outlet pipe and a second electric push rod, one end of the chip outlet pipe extends to the outside of the box body, a clamping ring is fixedly connected to the chip outlet pipe, a driving block is fixedly connected to the clamping ring, the driving block is in transmission connection with the output end of the second electric push rod, a plurality of sets of chip suction pipes are communicated with the chip outlet pipe, and a plurality of sets of chip suction heads are communicated with the bottom end of each of the plurality of sets of chip suction pipes.

[0019] Further, the annular chip collecting table is of a hollow structure, a vacuum pump is installed on the annular chip collecting table, the air inlet end of the vacuum pump extends into the annular chip collecting table, the air inlet end of the vacuum pump is provided with a filter screen, and a chip guide hose is communicated with the annular chip collecting table.

[0020] The beneficial effects of the present application are:

[0021] 1. The position of the lower pressing block is adjusted by two sets of longitudinal electric sliding tables and transverse electric sliding tables, the first electric push rod drives the lower pressing block to push the fixed point stamping part to move downward, so that the specified position of the stamping head can be independently extended, and the automatic locking function is realized by combining the wedge-shaped clamping block and the abutting spring, so that the stamping head is fixed, the upper die assembly is driven by the hydraulic cylinder to move downward, so that the stamping head can perform fixed point stamping operation on the metal plate, thereby realizing automatic adjustment of the stamping position, reducing the workload of workers and improving the stamping precision.

[0022] 2. When multiple point position stamping operation is required on the metal plate, the lower pressing block is sequentially moved to the position directly below the corresponding set of fixed point stamping parts by the point position adjusting mechanism, and the stamping head at the corresponding position is sequentially moved to the outside bottom end of the box, and the multiple stamping heads can simultaneously perform multiple point position stamping operation on the metal plate by moving the box downward, thereby effectively improving the stamping efficiency.

[0023] 3. The two sets of cams are synchronously rotated by the motor, the protrusions of the two sets of cams are rotated to the position directly above, the two sets of abutting plates are abutted, the reset mechanism is driven by the two sets of abutting plates to move upward, and the plurality of extrusion rings are attached to the surface of the corresponding set of sliding shafts to move upward, the wedge-shaped clamping blocks are extruded during the movement process, and the wedge-shaped clamping blocks are retracted into the recesses, at this time, the wedge-shaped clamping blocks no longer clamp the partition plates, the sliding shafts drive the stamping heads to move upward by the elastic potential energy of the reset springs, the stamping heads are retracted into the inside of the box, and the reset operation of the stamping heads is realized, so that the switching of the positioning and stamping positions can be quickly performed.

[0024] 4. The second electric push rod drives the chip removal pipe to move horizontally, so that the plurality of chip suction heads are synchronously moved to the plurality of stamping holes, the inside of the annular chip collection table is formed into a vacuum by the vacuum pump, the debris accumulated in the hole and groove generated by stamping is sucked into the chip removal pipe by the chip suction heads, and finally enters the annular chip collection table for centralized treatment, thereby realizing automatic cleaning of the debris. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0026] Figure 1 The main structure schematic diagram according to the embodiment of the present application is shown;

[0027] Figure 2 The main structure schematic diagram according to the embodiment of the present application is shown;

[0028] Figure 3 Fig. 6 shows a perspective view of the internal structure of the box according to an embodiment of the present application;

[0029] Figure 4 Fig. 7 shows a schematic view of the upper part of the partition according to an embodiment of the present application;

[0030] Figure 5 Fig. 8 shows a schematic view of the internal structure of the slide shaft according to an embodiment of the present application; Figure 4 Fig. 9 shows an enlarged schematic view of the middle A of Fig. 8;

[0031] Figure 6 Fig. 10 shows a schematic view of the internal structure of the slide shaft according to an embodiment of the present application;

[0032] Figure 7 Fig. 11 shows a schematic view of the position of the reset mechanism and the reset driving mechanism according to an embodiment of the present application;

[0033] Figure 8 Fig. 12 shows a schematic view of the connection of the reset mechanism and the reset driving mechanism according to an embodiment of the present application;

[0034] Figure 9 Fig. 13 shows a schematic view of the suction mechanism according to an embodiment of the present application.

[0035] Fig. 1 shows a schematic view of the device according to an embodiment of the present application. Fig. 2 shows a schematic view of the device according to an embodiment of the present application. Fig. 3 shows a schematic view of the device according to an embodiment of the present application. Fig. 4 shows a schematic view of the device according to an embodiment of the present application. Fig. 5 shows a schematic view of the device according to an embodiment of the present application. Fig. 6 shows a perspective view of the internal structure of the box according to an embodiment of the present application. Fig. 7 shows a schematic view of the upper part of the partition according to an embodiment of the present application. Fig. 8 shows a schematic view of the internal structure of the slide shaft according to an embodiment of the present application. Fig. 9 shows an enlarged schematic view of the middle A of Fig. 8. Fig. 10 shows a schematic view of the internal structure of the slide shaft according to an embodiment of the present application. Fig. 11 shows a schematic view of the position of the reset mechanism and the reset driving mechanism according to an embodiment of the present application. Fig. 12 shows a schematic view of the connection of the reset mechanism and the reset driving mechanism according to an embodiment of the present application. Fig. 13 shows a schematic view of the suction mechanism according to an embodiment of the present application. 100, base; 200, annular chip collecting platform; 210, vacuum pump; 220, chip guiding hose; 300, vertical column; 400, top plate; 500, hydraulic cylinder; 600, upper die assembly; 610, box; 611, punching hole; 620, limiting block; 630, buffer spring; 640, chip suction mechanism; 641, chip outlet pipe; 642, second electric push rod; 643, clamping ring; 644, driving block; 645, chip suction pipe; 646, chip suction head; 650, partition; 651, through hole; 652, transmission groove; 660, fixed-point punching part; 661, slide shaft; 662, punching head; 663, linkage block; 664, reset spring; 665, wedge-shaped clamping block; 666, linkage shaft; 667, abutting spring; 668, accommodation groove; 669, sliding groove; 670, reset mechanism; 671, extrusion ring; 672, connecting plate; 673, transmission plate; 680, point position adjusting mechanism; 681, longitudinal electric sliding table; 682, transverse electric sliding table; 683, first electric push rod; 684, pressing block; 690, reset driving mechanism; 691, rotating shaft; 692, cam; 693, motor; 694, abutting plate; 695, connecting shaft; 696, compression spring; 700, loading platform; 800, lower die base; 900, directional shaft. DETAILED DESCRIPTION

[0036] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0037] The embodiment of the present application provides a multi-point stamping forming device for mechanical mold production, which comprises a base 100. Figure 1 and Figure 2 as shown.

[0038] The base 100 is provided with an annular chip collecting table 200, the annular chip collecting table 200 is a hollow structure, the annular chip collecting table 200 is provided with a vacuum pump 210, the air inlet end of the vacuum pump 210 extends into the annular chip collecting table 200, the air inlet end of the vacuum pump 210 is provided with a filter screen, and the annular chip collecting table 200 is communicated with a chip guide hose 220.

[0039] The annular chip collecting table 200 is fixedly connected with four groups of stand columns 300, the top ends of the four groups of stand columns 300 are fixedly connected with a top plate 400, the top plate 400 is provided with a hydraulic cylinder 500, the output end of the hydraulic cylinder 500 is drivingly connected with an upper mold assembly 600, the upper mold assembly 600 comprises a box body 610, four groups of limiting blocks 620 are fixedly connected to the side wall of the box body 610, limiting holes are formed in the four groups of limiting blocks 620, and buffer springs 630 are arranged at the bottom ends of the four groups of limiting blocks 620.

[0040] A loading table 700 is arranged at the center of the annular chip collecting table 200, the loading table 700 is fixedly connected with the bottom ends of the four groups of buffer springs 630, a lower mold base 800 is arranged on the loading table 700, and four groups of directional shafts 900 are arranged on the loading table 700, the four groups of directional shafts 900 are respectively movably matched with the limiting holes in the corresponding group of limiting blocks 620, and the four groups of buffer springs 630 are respectively sleeved on the corresponding group of directional shafts 900.

[0041] Specifically, the metal plate to be processed is installed on the lower mold base 800, the upper mold assembly 600 is driven by the hydraulic cylinder 500 to move downward to perform stamping operation on the surface of the metal plate, the four groups of limiting blocks 620 move downward along the corresponding group of directional shafts 900 while the upper mold assembly 600 moves downward, so that the upper mold assembly 600 remains balanced during stamping, and the four groups of limiting blocks 620 move downward synchronously and extrude the buffer springs 630 while the upper mold assembly 600 moves downward, thereby buffering the stamping process.

[0042] Exemplary, as Figures 3-8 shown.

[0043] The inner wall top of the box 610 is provided with a point position adjusting mechanism 680, the point position adjusting mechanism 680 includes two groups of longitudinal electric sliding tables 681 and transverse electric sliding tables 682, two groups of the longitudinal electric sliding tables 681 and the transverse electric sliding tables 682 are installed on the inner wall of the box 610, the two ends of the transverse electric sliding table 682 are respectively in transmission connection with the output ends of the two groups of longitudinal electric sliding tables 681, the output end of the transverse electric sliding table 682 is in transmission connection with a first electric push rod 683, the output end of the first electric push rod 683 is in transmission connection with a lower pressing block 684;

[0044] The inner wall of the box 610 is fixedly connected with a partition plate 650, a plurality of groups of fixed point punching parts 660 are arranged on the partition plate 650, a plurality of groups of through holes 651 are formed in the partition plate 650, a plurality of groups of the through holes 651 correspond to a plurality of groups of fixed point punching parts 660 respectively, a plurality of groups of punching holes 611 are formed in the bottom end of the inner wall of the box 610, a plurality of groups of the punching holes 611 are arranged directly below a plurality of groups of fixed point punching parts 660 respectively;

[0045] The fixed point punching part 660 includes a sliding shaft 661, the sliding shaft 661 is movably attached with a corresponding group of through holes 651, the bottom end of the sliding shaft 661 is fixedly connected with a punching head 662, the top end of the sliding shaft 661 is fixedly connected with a linkage block 663, a reset spring 664 is arranged between the linkage block 663 and the partition plate 650, the reset spring 664 is sleeved on the sliding shaft 661, a plurality of groups of wedge-shaped clamping blocks 665 are arranged on the sliding shaft 661, a plurality of groups of accommodation grooves 668 are formed in the sliding shaft 661, a plurality of groups of the accommodation grooves 668 correspond to a plurality of groups of wedge-shaped clamping blocks 665 respectively, the side wall of the wedge-shaped clamping block 665 is fixedly connected with a linkage shaft 666, a plurality of groups of sliding grooves 669 are formed in the sliding shaft 661, a plurality of groups of the sliding grooves 669 movably attach with a corresponding group of linkage shafts 666 respectively, a resisting spring 667 is arranged between the wedge-shaped clamping block 665 and the inner wall of the accommodation groove 668, the resisting spring 667 is sleeved on the linkage shaft 666;

[0046] Specifically, the two sets of longitudinal electric sliding tables 681 drive the transverse electric sliding table 682 to move longitudinally, so that the transverse electric sliding table 682 drives the lower pressing block 684 to move to the preset position of the longitudinal coordinate axis, and then the transverse electric sliding table 682 drives the lower pressing block 684 to move to the preset position of the transverse coordinate axis, so that the lower pressing block 684 moves to the position directly above a set of fixed-point punching parts 660. The first electric push rod 683 drives the lower pressing block 684 to move downward, so that the lower pressing block 684 contacts the linkage block 663 located directly below and drives it to move downward, so that the sliding shaft 661 drives the punching head 662 to move downward and extend to the outer bottom end of the box body 610 after passing through the punching hole 611. When the sliding shaft 661 moves downward, the plurality of wedge-shaped clamping blocks 665 move downward and enter the through hole 651, and the inner wall of the through hole 651 extrudes the wedge-shaped clamping block 665 to make it retract into the accommodation groove 668. When the wedge-shaped clamping block 665 continues to move downward to the bottom end of the partition plate 650, the wedge-shaped clamping block 665 is driven to move to the outside of the sliding shaft 661 by the tension of the contact spring 667, so that the wedge-shaped clamping block 665 clamps the partition plate 650, avoiding the sliding shaft 661 driving the punching head 662 to retract into the box body 610 under the tension of the return spring 664. Thus, when the lower pressing block 684 completes the pressing operation and returns, the punching head 662 of the set remains at the outer bottom end of the box body 610, and the box body 610 moves downward, so that the punching head 662 can perform fixed-point punching operation on the position of the metal plate directly below.

[0047] Further, when multiple-point punching operation is required on the metal plate, the point position adjusting mechanism 680 drives the lower pressing block 684 to move to the position directly below a set of fixed-point punching parts 660 in sequence, and the punching head 662 at the corresponding position moves downward to the outer bottom end of the box body 610 in sequence. The box body 610 moves downward, so that the plurality of punching heads 662 can simultaneously perform multiple-point punching operation on the metal plate.

[0048] The partition plate 650 is provided with a reset driving mechanism 690 and a reset mechanism 670, and the partition plate 650 and the inner wall bottom end of the box body 610 are provided with a chip suction mechanism 640, which is in communication with one end of the chip guide hose 220.

[0049] The reset mechanism 670 includes a plurality of extrusion rings 671, and each of the plurality of extrusion rings 671 is sleeved on a corresponding sliding shaft 661. Adjacent two extrusion rings 671 are fixedly connected with a connecting plate 672, and the extrusion rings 671 arranged at the two side edges are fixedly connected with a transmission plate 673.

[0050] The reset driving mechanism 690 comprises two groups of abutting plates 694 and two groups of cams 692, the bottom end of the two groups of abutting plates 694 is provided with two groups of connecting shafts 695, the bottom end of the two groups of connecting shafts 695 is fixedly connected with the top end of the transmission plate 673 after penetrating through the partition plate 650, the abutting plate 694 and the partition plate 650 are provided with two groups of compression springs 696, the two groups of compression springs 696 are respectively sleeved on the corresponding connecting shaft 695;

[0051] The partition plate 650 is provided with two groups of transmission grooves 652, the two groups of cams 692 are respectively rotationally connected to the inner wall of the corresponding transmission groove 652, the two groups of cams 692 are respectively in abutment with the corresponding abutting plate 694, the center of the two groups of cams 692 is fixedly connected with the rotating shaft 691, the partition plate 650 is provided with the motor 693, and the output end of the motor 693 is in transmission connection with the center of the group of cams 692.

[0052] Specifically, after the stamping operation is completed, the two groups of cams 692 are driven to rotate synchronously by the motor 693, the protrusions of the two groups of cams 692 are rotated to the directly upper side, the two groups of abutting plates 694 are in abutment, the reset mechanism 670 is driven to move upward by the two groups of abutting plates 694, a plurality of groups of extrusion rings 671 are attached to the surface of the corresponding group of sliding shafts 661 and move upward, the wedge-shaped clamping blocks 665 are extruded in the moving process, the wedge-shaped clamping blocks 665 are retracted into the gap slot 668, at this time, the wedge-shaped clamping blocks 665 no longer clamp the partition plate 650, the sliding shaft 661 drives the stamping head 662 to move upward by the elastic potential energy of the reset spring 664, the stamping head 662 is retracted into the inside of the box body 610, the reset operation of the stamping head 662 is realized, so that the positioning and stamping position switching can be quickly performed, after the reset operation is completed, the two groups of cams 692 are continuously rotated by the motor 693, the protrusions of the two groups of cams 692 are rotated to the directly lower side, at this time, the cams 692 no longer abut against the abutting plates 694, the reset mechanism 670 moves downward by the gravity thereof, the extrusion rings 671 move downward synchronously, so that the extrusion rings 671 do not extrude the wedge-shaped clamping blocks 665 after the point position switching is completed, and the wedge-shaped clamping blocks 665 cannot be clamped with the bottom of the partition plate 650.

[0053] For example, as shown in Figure 9 .

[0054] The chip suction mechanism 640 comprises a chip outlet pipe 641 and a second electric push rod 642, one end of the chip outlet pipe 641 extends to the outside of the box body 610 and is in communication with one end of the chip guide hose 220, a clamping ring 643 is fixedly connected on the chip outlet pipe 641, a driving block 644 is fixedly connected on the clamping ring 643, the driving block 644 is in transmission connection with the output end of the second electric push rod 642, a plurality of groups of chip suction pipes 645 are communicated on the chip outlet pipe 641, a plurality of groups of chip suction heads 646 are communicated at the bottom ends of the plurality of groups of chip suction pipes 645, and the plurality of groups of chip suction heads 646 correspond to the plurality of groups of stamping holes 611 one by one, respectively.

[0055] Specifically, in the initial state, the plurality of groups of chip suction heads 646 are located on one side of the corresponding group of stamping holes 611, so as to avoid the shielding of the extension of the stamping head 662 by the chip suction head 646, after the stamping operation is completed, the chip outlet pipe 641 is driven to move horizontally by the second electric push rod 642, so that the plurality of groups of chip suction heads 646 are synchronously moved to the plurality of groups of stamping holes 611, the inside of the annular chip collecting table 200 is formed into a vacuum state by the vacuum pump 210, the chips accumulated in the hole and groove generated by stamping are sucked into the chip outlet pipe 641 through the chip suction head 646, and finally enter the annular chip collecting table 200 for centralized treatment.

[0056] The working principle of the multi-point stamping forming device for mechanical mold production is as follows:

[0057] The metal plate to be processed is installed on the lower die seat 800, the upper die assembly 600 is driven to move downward by the hydraulic cylinder 500, and the surface of the metal plate is subjected to stamping operation, the four groups of limiting blocks 620 move downward along the corresponding group of directional shafts 900 while the upper die assembly 600 moves downward, so that the upper die assembly 600 remains balanced during stamping, and the four groups of limiting blocks 620 move downward synchronously and extrude the buffer springs 630 while the upper die assembly 600 moves downward, so as to buffer the stamping process.

[0058] The longitudinal electric sliding table 681 drives the transverse electric sliding table 682 to move longitudinally, and the transverse electric sliding table 682 drives the lower pressing block 684 to move to the preset position of the longitudinal coordinate axis, and then the transverse electric sliding table 682 drives the lower pressing block 684 to move to the preset position of the transverse coordinate axis, so that the lower pressing block 684 moves to the position directly above a set of fixed point stamping parts 660. The first electric push rod 683 drives the lower pressing block 684 to move downward, so that the lower pressing block 684 contacts the linkage block 663 directly below and drives it to move downward, so that the sliding shaft 661 drives the stamping head 662 to move downward and extend to the outer bottom end of the box body 610 after passing through the stamping hole 611. When the sliding shaft 661 moves downward, the wedge-shaped clamping blocks 665 move downward and enter the through hole 651, and the inner wall of the through hole 651 extrudes the wedge-shaped clamping blocks 665 to retract into the accommodation groove 668. When the wedge-shaped clamping blocks 665 continue to move downward to the bottom end of the partition plate 650, the wedge-shaped clamping blocks 665 are driven to move to the outside of the sliding shaft 661 by the tension of the abutting spring 667, so that the wedge-shaped clamping blocks 665 clamp the partition plate 650, avoiding the sliding shaft 661 driving the stamping head 662 to retract into the box body 610 under the tension of the return spring 664. Thus, when the lower pressing block 684 completes the pressing operation and returns, the stamping head 662 of the set still stays at the outer bottom end of the box body 610, and the box body 610 moves downward, so that the stamping head 662 can perform fixed point stamping operation on the position of the metal plate directly below.

[0059] When multiple point stamping operation is needed on the metal plate, the point adjusting mechanism 680 drives the lower pressing block 684 to move to the position directly below a set of fixed point stamping parts 660 in sequence, and drives the stamping head 662 at the corresponding position to move downward to the outer bottom end of the box body 610 in sequence. The box body 610 moves downward, so that multiple stamping heads 662 can simultaneously perform multiple point stamping operation on the metal plate.

[0060] When the punching operation is completed, the two sets of cams 692 are driven to rotate synchronously by the motor 693, so that the protrusions of the two sets of cams 692 are rotated to the top, the two sets of abutting plates 694 are abutted, the two sets of abutting plates 694 drive the reset mechanism 670 to move upward, and the plurality of sets of extrusion rings 671 are attached to the surface of the corresponding set of sliding shafts 661 and move upward. During the movement, the wedge-shaped clamping blocks 665 are extruded, so that the wedge-shaped clamping blocks 665 retract into the accommodation grooves 668. At this time, the wedge-shaped clamping blocks 665 no longer clamp the partition plates 650. Through the elastic potential energy of the reset spring 664, the sliding shafts 661 drive the punching heads 662 to move upward, so that the punching heads 662 retract into the inside of the box body 610, and the reset operation of the punching heads 662 is realized. Thus, the positioning punching position can be quickly switched, and after the reset operation is completed, the two sets of cams 692 are continuously rotated by the motor 693, so that the protrusions of the two sets of cams 692 are rotated to the bottom. At this time, the cams 692 no longer abut the abutting plates 694, and the reset mechanism 670 moves downward by its own gravity, so that the extrusion rings 671 move downward synchronously, avoiding the extrusion of the extrusion rings 671 on the wedge-shaped clamping blocks 665 after the point position switching is completed, so that the wedge-shaped clamping blocks 665 cannot be clamped with the bottom of the partition plates 650.

[0061] In the initial state, the plurality of sets of scrap suction heads 646 are located on one side of the corresponding set of punching holes 611, so as to avoid the obstruction of the extension of the punching head 662 by the scrap suction head 646. After the punching operation is completed, the second electric push rod 642 drives the scrap pipe 641 to move horizontally, so that the plurality of sets of scrap suction heads 646 move synchronously to the plurality of sets of punching holes 611. The vacuum pump 210 forms a vacuum inside the annular scrap collecting table 200, so that the debris accumulated in the hole and groove generated by punching is sucked into the scrap pipe 641 by the scrap suction head 646, and finally enters the annular scrap collecting table 200 for centralized treatment.

[0062] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalent ones. Such modifications or replacements do not change the essence of the corresponding technical solutions, and are within the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A multi-point stamping forming device for mechanical mold production, comprising a base, characterized in that: The base is provided with an annular chip collection platform, and four sets of columns are fixedly connected to the annular chip collection platform. The top of the four sets of columns is fixedly connected to a top plate. A hydraulic cylinder is installed on the top plate. The output end of the hydraulic cylinder is drivenly connected to an upper mold assembly. The upper mold assembly includes a housing. The top of the inner wall of the box is provided with a point adjustment mechanism. The point adjustment mechanism includes two sets of longitudinal electric slides and transverse electric slides. The output end of the transverse electric slide is driven to a first electric push rod, and the output end of the first electric push rod is driven to a pressing block. The inner wall of the box is fixedly connected to a partition, and the partition is provided with several sets of fixed-point stamping parts; The partition is provided with a reset drive mechanism and a reset mechanism. A chip suction mechanism is provided between the partition and the bottom of the inner wall of the box. The chip suction mechanism is connected to one end of the chip guide hose. A loading platform is provided at the center of the annular chip collection platform, and a lower mold base is provided on the loading platform; The partition plate has several sets of through holes, each set of through holes corresponding to a set of fixed-point stamping parts. The bottom of the inner wall of the box has several sets of stamping holes, each set of stamping holes being located directly below the set of fixed-point stamping parts. The fixed-point stamping part includes a sliding shaft, which is movably fitted with a corresponding set of through holes. A stamping head is fixedly connected to the bottom end of the sliding shaft, and a linkage block is fixedly connected to the top end of the sliding shaft. A return spring is provided between the linkage block and the partition plate, and the return spring is sleeved on the sliding shaft. The sliding shaft is provided with several sets of wedge-shaped blocks, and several sets of clearance grooves are provided on the sliding shaft. Each of the clearance grooves corresponds to one of the several sets of wedge-shaped blocks. A linkage shaft is fixedly connected to the side wall of each wedge-shaped block. Several sets of sliding grooves are provided on the sliding shaft, and each of the sliding grooves is movably engaged with a corresponding set of linkage shafts. An anti-collision spring is provided between the wedge-shaped blocks and the inner wall of the clearance grooves, and the anti-collision spring is sleeved on the linkage shaft.

2. The multi-point stamping forming device for mechanical mold production according to claim 1, characterized in that: The side wall of the box is fixedly connected with four sets of limiting blocks. Each of the four sets of limiting blocks has a limiting hole. Each of the four sets of limiting blocks has a buffer spring at its bottom. The loading platform is fixedly connected to the bottom of the four sets of buffer springs. The loading platform is provided with four sets of directional shafts. Each of the four sets of directional shafts is movably fitted with the limiting hole on the corresponding set of limiting blocks. Each of the four sets of buffer springs is sleeved on the corresponding set of directional shafts.

3. The multi-point stamping forming device for mechanical mold production according to claim 1, characterized in that: The reset mechanism includes several sets of compression rings, and a connecting plate is fixedly connected between each pair of adjacent compression rings. A transmission plate is fixedly connected between several sets of compression rings located at the two side edges.

4. The multi-point stamping forming device for mechanical mold production according to claim 1, characterized in that: The reset drive mechanism includes two sets of abutment plates and two sets of cams. The bottom ends of the two sets of abutment plates are provided with two sets of connecting shafts. The bottom ends of the two sets of connecting shafts pass through the partition and are fixedly connected to the top end of the transmission plate. Two sets of compression springs are provided between the abutment plates and the partition, and the two sets of compression springs are respectively sleeved on the corresponding set of connecting shafts.

5. The multi-point stamping forming device for mechanical mold production according to claim 4, characterized in that: The partition plate has two sets of transmission grooves. The two sets of cams are rotatably connected to the inner wall of the corresponding set of transmission grooves. The two sets of cams abut against the corresponding set of abutting plates. A rotating shaft is fixedly connected to the center of the two sets of cams. A motor is installed on the partition plate. The output end of the motor is connected to the center of the set of cams.

6. The multi-point stamping forming device for mechanical mold production according to claim 1, characterized in that: The chip removal mechanism includes a chip discharge pipe and a second electric push rod. One end of the chip discharge pipe extends to the outside of the housing. A snap ring is fixedly connected to the chip discharge pipe, and a drive block is fixedly connected to the snap ring. The drive block is drivenly connected to the output end of the second electric push rod. Several sets of chip removal pipes are connected to the chip discharge pipe, and several sets of chip removal heads are connected to the bottom ends of the several sets of chip removal pipes.

7. The multi-point stamping forming device for mechanical mold production according to claim 1, characterized in that: The annular chip collection platform has a hollow structure. A vacuum pump is installed on the annular chip collection platform. The air inlet of the vacuum pump extends into the annular chip collection platform. A filter screen is provided at the air inlet of the vacuum pump. A chip guide hose is connected to the annular chip collection platform.

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