Edge cutting device for rotating disc type bending machine and machining process of edge cutting device

Abstract

The invention provides an edge cutting device for a rotating disc type bending machine and a machining process thereof.The edge cutting device comprises a pressing mechanism and a pushing mechanism which are installed at a cutting station of a rotating disc, a plurality of first penetrating holes are formed in the rotating disc, and carrier strips are erected and installed at the tops of the first penetrating holes; the pressing mechanism is arranged above the carrier strip, and the pushing mechanism is located below the first penetrating hole. The pressing mechanism is used for pressing the workpieces on the carrier strip and cutting the material strip in the middle of the workpieces; the pushing mechanism is used for pushing and bending material edges on two sides of the workpiece and cutting pin parts of the material edges; the pressing mechanism is further used for outwards pushing and popping up the cut and separated edge waste materials, so that the edge waste materials fall off from the first through hole and are separated from the pushing mechanism; bending and edge cutting actions can be completed at one station, errors of workpieces in the double-station rotation process are reduced, and efficiency and quality are improved. And the cut waste materials can be separated, collection is convenient, and subsequent machining is prevented from being affected.

Description

Technical Field

[0001] The present invention relates to the field of chip inductor preparation, and more specifically, to a processing flow of a trimming device for a turntable bending machine. Background Art

[0002] In the processing and production process of the integrated molded chip inductor, after the workpiece comes out of the integrated molding equipment, it needs to be trimmed, bent, separated and other actions; At present, the production workshop uses a turntable type processing equipment, such as the structure disclosed in the patent CN214476935U. As the turntable rotates, the workpiece passes through the primary bending mechanism, cutting mechanism, secondary bending mechanism, flattening mechanism, rolling mechanism and unloading mechanism to achieve multiple steps;

[0003] Among them, bending and trimming are two separate actions, occupying two processing stations. In particular, the workpiece after bending may affect the accuracy of subsequent processing; and the cutting action is to cut multiple points of the workpiece, so that the output of waste fragments is large and scattered. Due to the lack of an effective separation structure, some fragments move with the workpiece to the next processing step, affecting the subsequent processing quality; there may even be problems of falling around during the movement of the turntable, which may have an adverse effect on other equipment structures, so it needs to be improved. Summary of the invention

[0004] In order to overcome the defects of the prior art, the technical problem to be solved by the present invention is to propose a trimming device for a turntable bending machine and its processing flow, which can complete bending and trimming actions at one workstation, reduce the error of the workpiece during the rotation of double workstations, and improve efficiency and quality; and can separate the waste after cutting for easy collection to prevent affecting subsequent processing.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] The present invention provides a trimming device for a turntable bending machine, comprising a clamping mechanism and a pushing mechanism installed at a cutting station of the turntable, wherein a plurality of first through-holes are arranged in an array around a central circumference on the turntable, and a carrier bar is mounted on the top of the first through-hole; the clamping mechanism is arranged above the carrier bar, and the pushing mechanism is located below the first through-hole; the clamping mechanism is used to clamp the workpiece on the carrier bar and to cut the material strip in the middle of the workpiece; the pushing mechanism is used to push and bend the material edges on both sides of the workpiece and to cut the pin parts of the material edges; the clamping mechanism is also used to push and eject the edge waste materials after cutting and separation, so that the edge waste materials fall from the first through-hole and separate from the pushing mechanism.

[0007] In a preferred technical solution of the present invention, the pressing mechanism includes a first cylinder, a first push plate, a first pressing block, and a first spring; the first push plate is installed at the end of the piston rod of the first cylinder, the first pressing block is located below the first push plate, and at both ends of the top surface of the first pressing block, first guide rods are respectively fixedly provided. At both ends of the first push plate, corresponding first guide holes are provided. The first guide rods are movably inserted through the first guide holes, and at the ends of the first guide rods, first circlips for limiting and preventing detachment are installed; the first spring is sleeved on the first guide rods and is clamped between the first push plate and the first pressing block; multiple second guide holes are provided on the first pressing block, and on the bottom surface of the first push plate, multiple first cutting knives are fixedly provided correspondingly. The first cutting knives penetrate through the first pressing block via the second guide holes; a spring pushing component is installed on the first pressing block for pushing the edge waste after cutting and separating outwards and ejecting it.

[0008] In a preferred technical solution of the present invention, at both sides of the bottom of the first pressing block, corresponding to the second guide holes, multiple clamping slots are provided. On the first pressing block, four second through holes penetrating both end faces are provided, and the second through holes are distributed at the four corners of an isosceles trapezoid; the spring pushing component includes four clamping bars and multiple elastic sheets; the clamping bars are correspondingly inserted through the second through holes; at one clamping slot, two elastic sheets are provided. The elastic sheets are installed on the corresponding clamping bars on the same side and use the bottom clamping bar as the fulcrum for the elastic sheet to compress and swing; the elastic sheets on both sides of the clamping slot form an elastic supporting portion that slopes upwards and outwards outside the clamping slot. The first cutting knife is arranged between the two elastic supporting portions of the same clamping slot; the elastic supporting portion can be retracted into the clamping slot by pressing and does not protrude from the side wall of the first pressing block.

[0009] In a preferred technical solution of the present invention, the pushing mechanism includes a second cylinder, a pushing frame, a supporting frame, a second cutting knife, and a second spring;

[0010] The pushing frame is installed at the end of the piston rod of the second cylinder. On the pushing frame, a third guide hole is provided. At the bottom of the supporting frame, a corresponding third guide rod is fixedly provided. The third guide rod is movably inserted through the third guide hole; at the end of the third guide rod, a third circlip for limiting and preventing detachment is provided; the second spring is sleeved on the third guide rod and is clamped between the pushing frame and the supporting frame; on the top of the supporting frame, a first clamping groove is provided, and the shape of the first clamping groove is adapted to the shape of the middle part of the load-carrying rack bar. At both side walls of the first clamping groove, strip-shaped openings are provided along the length direction. The second cutting knife is movably installed on the supporting frame and is arranged corresponding to the strip-shaped openings. The second cutting knife extends out of the strip-shaped openings under the drive of the second cylinder to cut the lead parts of the workpiece clamped in the first clamping groove.

[0011] In a preferred technical solution of the present invention, the bracket includes two oppositely arranged support plates. Two mounting plates and one support plate are mounted on the top of the support plates; the two mounting plates are fixedly arranged on both sides of the top end of the support plates, and a gap is left between them; the support plate is arranged below the gap between the two mounting plates, and a first card slot is formed between the support plate and the two mounting plates; the third guide rod is arranged on the bottom surface of the support plate; the second cutter is arranged below the mounting plate, and the second cutter is driven by the second air cylinder to move along the width direction of the bracket, so that the cutting edge enters and exits the first card slot from the strip-shaped opening.

[0012] In a preferred technical solution of the present invention, support blocks are fixedly arranged at both ends of the bottom surface of the support plate. First threaded holes penetrating through both wall surfaces are arranged on the support blocks, and first guide bolts are installed at the first threaded holes; fourth guide holes are correspondingly arranged on the side walls at both ends of the second cutter, and the first guide bolts are arranged through the fourth guide holes, and the second cutter slides along the first guide bolts; a third spring is installed on the first guide bolts, and the third spring is arranged between the second cutter and the support block to provide an elastic force for the second cutter to move away from the support block, so that the cutting edge disengages from the first card slot; the second cutter is driven by the second air cylinder to overcome the elastic force of the third spring, so that the cutting edge enters the first card slot.

[0013] In a preferred technical solution of the present invention, the second cutter includes a cutter body. A support strip is fixedly arranged on the bottom surface of one end of the cutter body away from the cutting edge part, and the fourth guide holes are arranged at both ends of the support strip; the wall surface of the support strip away from the cutting edge part is a first inclined surface, and the first inclined surface is inclined upward from the bottom toward the side away from the cutting edge part; inclined guide blocks are correspondingly fixedly arranged on both sides of the top surface of the push frame, and a second inclined surface is arranged on one side of the top of the inclined guide block close to the center of the push frame, and the second inclined surface is in abutting sliding connection with the first inclined surface; a notch is arranged at the cutting edge part of the second cutter corresponding to the strip part of the workpiece; after the second air cylinder drives the push frame to move upward until the movement of the bracket is blocked, the second air cylinder continues to push to drive the push frame to continue moving upward, and drives the second cutter to move toward the first card slot to cut the pin part of the material edge.

[0014] In a preferred technical solution of the present invention, the top surface of the mounting plate is inclined downward in the direction away from the first card slot.

[0015] In a preferred technical solution of the present invention, a plurality of third through holes are arranged on the load-carrying rack strip corresponding to the strip of the workpiece; a plurality of cushion blocks are fixedly arranged on the top surface of the support plate, the shapes of the cushion blocks are adapted to the third through holes and the positions are corresponding; when the bracket moves upward until the support plate abuts against the load-carrying rack strip, the cushion blocks penetrate through the third through holes and abut against the bottom surface of the strip of the workpiece to provide support for the cutting of the first cutter.

[0016] The present invention also discloses a processing flow of a trimming device for a rotary bending machine, including the following steps:

[0017] S1, the workpiece moves to the trimming station along with the load-carrying rack strip;

[0018] S2, the first cylinder ejects the piston rod, driving the first pressing block to move downward to a preset position to clamp the workpiece.

[0019] S3, the second cylinder ejects the piston rod, driving the bracket to move upward to a preset position. The supporting plate abuts against the load-carrying rack bar, and the cushion block abuts against the bottom surface of the strip. During this process, the frame plate pushes the side material of the workpiece upward to a 90° bend and compresses the elastic pushing component inward.

[0020] S4, the first cylinder continues to eject the piston rod, pushing the first push plate downward by a preset distance, and the first cutting knife cuts the strip of the workpiece.

[0021] The second cylinder continues to eject the piston rod, pushing the push frame upward by a preset distance, so that the second cutting knife moves horizontally to cut the pin part of the material edge.

[0022] S5, the second cylinder retracts the piston rod to a preset position, disengaging the bracket from the load-carrying rack bar and releasing the force applied to the elastic pushing component. The elastic piece of the elastic pushing component resets and pops outwards, ejecting the divided waste side materials to both sides, causing the waste side materials to slide downward along the top surface of the frame plate and fall off.

[0023] S6, the first cylinder and the second cylinder retract the piston rod to the initial position, disengaging from the workpiece to prepare for the next batch of workpieces. The turntable rotates by a preset angle, driving the workpiece to the next processing station.

[0024] The beneficial effects of the present invention are as follows:

[0025] A trimming device for a rotary bending machine and its processing process provided by the present invention include a pressing mechanism and a pushing mechanism installed at the cutting station of the turntable. The pressing mechanism is used to clamp the workpiece on the load-carrying rack bar and cut the strip in the middle of the workpiece; the pushing mechanism is used to push and bend the material edges on both sides of the workpiece and cut the pin parts of the material edges; the pressing mechanism is also used to push the trimmed side waste outwards and eject it, so that the side waste falls from the first through hole and disengages from the pushing mechanism; it can complete the bending and trimming actions at one station, reducing the error during the double-station rotation of the workpiece, improving the efficiency and quality; and defining the trimming position, preventing the side waste from being too scattered and preventing it from spreading everywhere; and the pressing mechanism can also elastically push the side waste, enabling the waste to be separated, facilitating collection, preventing the side waste from moving to the downstream processing link, and avoiding affecting the overall processing. Description of the Drawings

[0026] Figure 1 is a three-dimensional structural schematic diagram of a trimming device for a rotary bending machine provided in a specific embodiment of the present invention from the first perspective.

[0027] Figure 2It is a schematic perspective view of the second angle of a trimming device for a rotary bending machine provided in a specific embodiment of the present invention;

[0028] Figure 3 It is a schematic perspective view of the first angle of the pressing mechanism provided in a specific embodiment of the present invention;

[0029] Figure 4 It is a schematic perspective view of the second angle of the pressing mechanism provided in a specific embodiment of the present invention;

[0030] Figure 5 It is a schematic perspective unfolded view of the first angle of the pressing mechanism provided in a specific embodiment of the present invention;

[0031] Figure 6 It is a schematic perspective unfolded view of the second angle of the pressing mechanism provided in a specific embodiment of the present invention;

[0032] Figure 7 It is a schematic perspective view of the first pressing block provided in a specific embodiment of the present invention;

[0033] Figure 8 It is a schematic perspective view of the first angle of the pushing mechanism provided in a specific embodiment of the present invention;

[0034] Figure 9 It is a schematic perspective view of the second angle of the pushing mechanism provided in a specific embodiment of the present invention;

[0035] Figure 10 It is a schematic perspective unfolded view of the first angle of the pushing mechanism provided in a specific embodiment of the present invention;

[0036] Figure 11 It is a schematic perspective unfolded view of the second angle of the pushing mechanism provided in a specific embodiment of the present invention;

[0037] Figure 12 It is a cross-sectional view of the bracket provided in a specific embodiment of the present invention;

[0038] Figure 13 It is a schematic perspective view of the second cutting tool provided in a specific embodiment of the present invention;

[0039] Figure 14 It is a schematic perspective view of the pushing frame provided in a specific embodiment of the present invention;

[0040] Figure 15 It is a schematic perspective view of the workpiece provided in a specific embodiment of the present invention;

[0041] Figure 16It is a three-dimensional structure schematic diagram of several states of a workpiece provided in a specific embodiment of the present invention;

[0042] In the figure:

[0043] 100, turntable; 110, first perforation; 200, load-carrying rack bar; 210, third perforation;

[0044] 300, pressing mechanism; 310, first cylinder; 320, first push plate; 321, first guiding hole; 322, first cutting knife; 330, first pressing block; 331, second guiding hole; 332, bayonet; 333, second perforation; 340, first spring; 350, first guiding rod; 360, elastic pushing component; 361, clamping bar; 362, elastic sheet;

[0045] 400, pushing mechanism; 410, second cylinder; 420, pushing frame; 421, inclined guiding block; 422, second inclined surface; 423, third guiding hole; 430, bracket; 431, third guiding rod; 432, first clamping groove; 433, strip-shaped opening; 434, support plate; 435, frame plate; 436, supporting plate; 437, supporting block; 438, cushion block; 440, second cutting knife; 441, fourth guiding hole; 442, knife body; 443, supporting strip; 444, first inclined surface; 445, notch; 450, second spring; 460, first guiding bolt; 470, third spring;

[0046] 800, workpiece; 810, strip material; 820, strip edge; 830, lead pin part; 840, edge waste. Specific embodiments

[0047] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings and through specific embodiments.

[0048] As Figure 1 , Figure 2 , Figure 15 shown, a trimming device for a turntable type bending machine disclosed in a specific embodiment of the present invention includes a pressing mechanism 300 and a pushing mechanism 400 installed at the trimming station of the turntable. A plurality of first perforations 110 are arranged on the turntable 100 in a circumferential array around the center. A load-carrying rack bar 200 is installed on the top of the first perforations 110; the pressing mechanism 300 is arranged above the load-carrying rack bar 200, and the pushing mechanism 400 is located below the first perforations 110; the pressing mechanism 300 is used to press the workpiece 800 on the load-carrying rack bar 200 and cut the strip material 810 in the middle of the workpiece; the pushing mechanism 400 is used to push and bend the strip edges 820 on both sides of the workpiece and cut the lead pin parts 830 of the strip edges; the pressing mechanism 300 is also used to push and eject the cut and separated edge waste 840 outwards, so that the edge waste falls from the first perforation and disengages from the pushing mechanism.

[0049] The above-mentioned edge trimming device for a rotary bending machine can complete the bending and edge trimming actions at one station, reducing the error during the rotation of workpieces between two stations, improving efficiency and quality; and it defines the trimming position, preventing the edge waste from being too scattered and preventing it from spreading around; moreover, the pressing mechanism can also push the edge waste elastically, separating the waste for easy collection, preventing the edge waste from moving to the downstream processing link and avoiding affecting the overall processing.

[0050] It should be noted that the carrier rack bar is fixed on the turntable by bolts. The carrier rack bar has magnetism and is used to magnetically attract the workpiece to prevent the workpiece from running off or shifting randomly, and drive the rotation of the workpiece between various processing parts through magnetic attraction to achieve continuous processing actions; it is a commonly used transfer component during the processing and production of integrated patch inductors at present, and will not be elaborated here.

[0051] Furthermore, as Figures 3 to 6 shown, the pressing mechanism 300 includes a first cylinder 310, a first push plate 320, a first pressing block 330, and a first spring 340; the first push plate 320 is installed at the end of the piston rod of the first cylinder 310, the first pressing block 330 is located below the first push plate 320, both ends of the top surface of the first pressing block 330 are respectively fixedly provided with first guide rods 350, the two ends of the first push plate 320 are correspondingly provided with first guide holes 321, the first guide rods 350 are movably inserted through the first guide holes 321, and a first snap ring for limiting and anti-disengagement is installed at the end of the first guide rod; the first spring 340 is sleeved on the first guide rod 350 and is clamped between the first push plate and the first pressing block; a plurality of second guide holes 331 are provided on the first pressing block 330, and a plurality of first cutting knives 322 are fixedly provided on the bottom surface of the first push plate 320 correspondingly, and the first cutting knives penetrate through the first pressing block through the second guide holes; this structural design can, on the one hand, enable the first pressing block and the first push plate to move synchronously, achieving driving by one first cylinder; on the other hand, after the first pressing block presses the workpiece, continuing to push the first push plate can still continue to move, so that the first cutting knives continue to move and cut the strip of the workpiece.

[0052] Among them, an elastic pushing component 360 is installed on the first pressing block 330, which is used to push the trimmed and separated edge waste outwards, preventing the edge waste from staying at the processing position and avoiding its movement to the next link and affecting the subsequent processing.

[0053] Furthermore, as Figures 5 to 7As shown in the figure, on both sides of the bottom of the first pressing block 330, a plurality of clamping slots 332 are provided corresponding to the second guiding holes 331. Four second through holes 333 penetrating both end faces are provided on the first pressing block 330, and the second through holes are distributed at the four corners of an isosceles trapezoid. The elastic pushing assembly 360 includes four clamping bars 361 and a plurality of elastic pieces 362. The clamping bars 361 are correspondingly inserted through the second through holes 333. Two elastic pieces 362 are provided at one clamping slot 332. The elastic pieces 362 are installed on the clamping bars 361 on the same side, and the bottom clamping bar is used as the fulcrum for the elastic piece to compress and swing. The elastic pieces on both sides of the clamping slot form an elastic supporting portion that slopes upward and outward on the outer side of the clamping slot. The first cutting knife is arranged between the two elastic supporting portions of the same clamping slot. The elastic supporting portion can be retracted into the clamping slot by pressing and does not protrude from the side wall of the first pressing block. This structural design can use the elastic piece as an elastic component, which can be pressed back into the clamping slot without affecting the bending and cutting of the workpiece side material, and can also pop out after the external force is removed, so that the side waste material is separated from the workpiece part to achieve the separation action.

[0054] Furthermore, both sides of the top surface of the first pressing block protrude outward, and the top of the clamping slot extends to the protruding part. The elastic piece has a V-shaped structure. The two ends of the elastic piece are curled into a first reel and a second reel. The higher clamping bar on the same side passes through the first reel, the lower clamping bar passes through the bending part of the elastic piece, and the second reel extends into the clamping slot, thereby forming an elastic supporting portion with the bottom clamping bar as the swinging fulcrum, and the whole elastic piece will not easily loosen or deviate, maintaining an effective external elastic pushing effect.

[0055] Furthermore, sinking grooves are provided at both ends of the first pressing block, and the second through holes all fall at the sinking grooves. A sealing plate is installed at the sinking grooves through bolts to block and limit the ends of the second through holes, so that the clamping bars are maintained at the installation positions, preventing the clamping bars from loosening and causing the elastic pieces to fall off, and maintaining an effective matching effect. And, adopting an assembled structure can facilitate the processing and production of each structural component, and is also convenient for assembly and construction and subsequent maintenance and disassembly.

[0056] Furthermore, as Figures 8 to 11 shown, the top pushing mechanism 400 includes a second air cylinder 410, a pushing frame 420, a bracket 430, a second cutting knife 440, and a second spring 450. The pushing frame 420 is installed at the end of the piston rod of the second air cylinder 410. A third guiding hole 423 is provided on the pushing frame 420. A third guiding rod 431 is fixedly provided at the bottom of the bracket 430. The third guiding rod 431 is movably inserted through the third guiding hole 423. A third snap spring for limiting and preventing detachment is provided at the end of the third guiding rod. The second spring 450 is sleeved on the third guiding rod 431 and is clamped between the pushing frame 420 and the bracket 430.

[0057] On the one hand, this structural design enables the pusher frame and the bracket to achieve synchronous movement, and one second cylinder can complete the driving; on the other hand, after the movement of the bracket is blocked, the pusher frame can still continue to move and complete subsequent actions when it continues to push the pusher frame;

[0058] A first card slot 432 is provided at the top of the bracket 430. The shape of the first card slot 432 is adapted to the shape of the middle part of the load-carrying rack bar 200. When the second cylinder drives the bracket to move upward to a preset position, the first card slot is clamped outside the load-carrying rack bar, and both sides of the notch of the first card slot can push up and bend the material edges of the workpiece and form a 90° bending effect;

[0059] Correspondingly, at this time, the pins of the workpiece are in a position close to the side wall of the first pressing block. Therefore, strip-shaped openings 433 are provided at the two groove walls of the first card slot 432 along the length direction. The second cutting knife 440 is movably installed on the bracket and is arranged corresponding to the strip-shaped openings 433. The second cutting knife extends out of the strip-shaped openings under the drive of the second cylinder and cuts the pin parts of the workpiece clamped in the first card slot; using the first pressing block as the supporting position for cutting the pin parts to ensure effective cutting;

[0060] It should be noted that the distance left between the groove wall of the first card slot and the side wall of the load-carrying rack bar is adapted to the thickness of the side material of the workpiece. When the bracket moves upward, the side materials on both sides are pushed upward, so that the side materials are bent and abutted against both sides of the first pressing block to complete the required bending angle;

[0061] Further, as Figure 12 shown, the bracket 430 includes two relatively arranged support plates 434. Two frame plates 435 and one support plate 436 are erected on the top of the support plates 434; the two frame plates 435 are fixedly arranged on both sides of the top ends of the support plates 434, and there is a distance between them; the support plate 436 is arranged below the interval between the two frame plates 435, and the first card slot 432 is formed between the support plate and the two frame plates; the third guide rod 431 is arranged on the bottom surface of the support plate 436; through the arrangement design of the support plates, frame plates, and support plate, the required first card slot and strip-shaped openings are formed, and the whole is relatively simple and convenient for processing;

[0062] The second cutting knife 440 is arranged below the frame plate 435. The second cutting knife is driven by the second cylinder to move along the width direction of the bracket, so that the cutting edge enters and exits the first card slot from the strip-shaped opening, and the second cutting knife cuts the workpiece transversely, using the side wall of the first pressing block as the supporting and stress-bearing part to effectively cut the bent pin part.

[0063] Further, as Figure 11 、 Figure 12As shown, support blocks 437 are fixedly provided at both ends of the bottom surface of the pallet 436. First threaded holes penetrating through both wall surfaces are provided on the support blocks 437, and first guiding bolts 460 are installed at the first threaded holes; corresponding fourth guiding holes 441 are provided on the side walls at both ends of the second cutter 440, and the first guiding bolts 460 are inserted through the fourth guiding holes 441, and the second cutter slides along the first guiding bolts; the movement of the second cutter is further limited by the first guiding bolts, so that it moves smoothly close to the bottom surface of the shelf board, and accurately cuts the pin parts of the workpiece;

[0064] A third spring 470 is installed on the first guiding bolt 460. The third spring 470 is arranged between the second cutter 440 and the support block 437, and provides an elastic force for the second cutter to move away from the support block, so that the cutting edge disengages from the first clamping groove; the second cutter is driven by the second cylinder to overcome the elastic force of the third spring, so that the cutting edge enters the first clamping groove; when the second cutter needs to perform cutting, the second cylinder provides the power of pushing; when the second cylinder releases the pushing force, the second cutter resets under the action of the third spring, which does not affect the operation of other structures and is also convenient for the subsequent transfer of the workpiece.

[0065] Further, as Figure 13 shown, the second cutter 440 includes a cutter body 442. A support bar 443 is fixedly provided on the bottom surface of one end of the cutter body away from the cutting edge part. The fourth guiding holes 441 are provided at both ends of the support bar 443; the wall surface of the support bar 443 away from the cutting edge part is a first inclined surface 444, and the first inclined surface inclines upward from the bottom toward the side away from the cutting edge part; as Figure 14 shown, corresponding inclined guide blocks 421 are fixedly provided on both sides of the top surface of the pushing frame 420. A second inclined surface 422 is provided on one side of the top of the inclined guide block 421 close to the center of the pushing frame. The second inclined surface 422 is in abutting sliding connection with the first inclined surface 444; a notch 445 is provided at the cutting edge part of the second cutter 440 corresponding to the strip part of the workpiece, avoiding the strip position and only cutting the pin part; after the second cylinder drives the pushing frame to move upward until the movement of the bracket is blocked, the second cylinder continues to push and can drive the pushing frame to continue to move upward, and drives the second cutter to move toward the first clamping groove to cut the pin part of the material edge; through the sliding connection between the second inclined surface and the first inclined surface, the direct pushing force of the second cylinder is transferred to the transverse movement force of the second cutter, which can not only meet the requirement of the vertical movement of the bracket, but also continue to push after the movement of the bracket is limited, so that the second cutter moves transversely to effectively cut the pin part, achieving the effect of driving two actions with one second cylinder.

[0066] Further, the top surface of the shelf board inclines downward in the direction away from the first clamping groove, providing conditions for the cut side waste to slide downward, facilitating the side waste to slide off the processing part.

[0067] Further, as Figure 1As shown, a plurality of third perforations 210 are provided on the load-carrying rack bar 200 corresponding to the strip of the workpiece; as Figure 8 , Figure 12 shown, a plurality of cushion blocks 438 are fixedly provided on the top surface of the support plate 436. The shape of the cushion blocks 438 is adapted to the third perforations 210 and the positions correspond. When the bracket moves upward until the support plate 436 abuts against the load-carrying rack bar 200, the cushion blocks 438 penetrate through the third perforations 210 and abut against the bottom surface of the strip of the workpiece, providing support for the cutting of the first cutter; this structural design provides third perforations on the load-carrying rack bar to provide a passing part for the cushion blocks on the lower bracket, which can meet the parts that only provide support during cutting, and maintain the top surface of the load-carrying rack bar flush at other workstations, facilitating the loading and unloading of workpieces and actual processing production; while at the cutting workstation, the cushion blocks abut against the bottom surface of the strip, providing a force application point for the first cutter to ensure effective cutting of the strip; among them, the top edge of the cushion block is provided with a chamfer, which facilitates the insertion and penetration of the cushion block through the third perforation, further facilitating use.

[0068] The present invention also provides a processing flow of a trimming device for a rotary bending machine, including the following steps:

[0069] S1, the workpiece moves to the trimming workstation along with the load-carrying rack bar;

[0070] S2, the first air cylinder ejects the piston rod, driving the first pressing block to move downward to a preset position to press the workpiece. At this time, the workpiece is still in Figure 16 the A state in;

[0071] S3, the second air cylinder ejects the piston rod, driving the bracket to move upward to a preset position. The support plate abuts against the load-carrying rack bar, and the cushion blocks abut against the bottom surface of the strip; during this process, the frame plate pushes the side waste of the workpiece upward to a 90° bend and compresses the elastic pushing component inward; at this time, the workpiece is in Figure 16 the B state in;

[0072] S4, the first air cylinder continues to eject the piston rod, pushing the first push plate to move downward a preset distance, and the first cutter cuts the strip of the workpiece; the second air cylinder continues to eject the piston rod, pushing the push frame to move upward a preset distance, so that the second cutter moves horizontally to cut the lead part of the material edge; at this time, the workpiece is in Figure 16 the C state in, and the side waste has also been cut off from the workpiece, but is not separated at intervals as shown;

[0073] S5, the second air cylinder retracts the piston rod to a preset position, so that the bracket disengages from the load-carrying rack bar, releasing the force applied to the elastic pushing component; the elastic piece of the elastic pushing component resets and pops out outward, ejecting the divided waste side strips to both sides, so that the waste side strips slide downward along the top surface of the frame plate and fall off;

[0074] S6. The first cylinder and the second cylinder retract the piston rods to the initial positions to disengage from the workpiece, preparing for the next batch of workpieces; the turntable rotates by a preset angle to drive the workpiece to the next processing station.

[0075] The present invention is described by way of preferred embodiments. Those skilled in the art will appreciate that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the present invention. The present invention is not limited by the specific embodiments disclosed herein, and other embodiments falling within the scope of the claims of this application belong to the scope of protection of the present invention.

Claims

1. A trimming device for a turntable bending machine, characterized in that: It includes a clamping mechanism and a pushing mechanism installed at the rotary cutting station. The rotary disc is provided with a plurality of first through holes distributed in an array around a central circumference. A carrier bar is mounted on the top of the first through hole. The clamping mechanism is arranged above the carrier bar, and the pushing mechanism is located below the first through hole. The clamping mechanism is used to clamp the workpiece on the carrier strip and cut the material strip in the middle of the workpiece; The push mechanism is used to push and bend the edges of the workpiece on both sides, and to cut the pins of the edges; The clamping mechanism is also used to push and eject the edge waste materials after cutting and separation, so that the edge waste materials fall from the first perforation and escape from the pushing mechanism.

2. The trimming device for a rotary plate bending machine according to claim 1, characterized in that: The clamping mechanism includes a first cylinder, a first push plate, a first pressing block, and a first spring; The first push plate is installed at the end of the piston rod of the first cylinder, the first pressure block is located below the first push plate, the two ends of the top surface of the first pressure block are respectively fixed with first guide rods, the two ends of the first push plate are correspondingly provided with first guide holes, the first guide rod is movably inserted in the first guide hole, and the end of the first guide rod is installed with a first clamping spring for limiting and preventing disengagement; the first spring is sleeved on the first guide rod and clamped between the first push plate and the first pressure block; The first pressing block is provided with a plurality of second guide holes, and a plurality of first cutters are correspondingly fixedly provided on the bottom surface of the first push plate, and the first cutters penetrate the first pressing block through the second guide holes; The first pressing block is provided with a push assembly for pushing out the edge waste after cutting and separation.

3. The trimming device for a rotary plate bending machine according to claim 2, characterized in that: A plurality of bayonet holes are provided on both sides of the bottom of the first pressing block corresponding to the second guide holes, and four second through holes are provided on the first pressing block that penetrate the two end surfaces, and the second through holes are distributed at the four corners of the isosceles trapezoid; The push-pushing assembly includes four card strips and a plurality of spring pieces; the card strips are correspondingly arranged at the second perforations; two spring pieces are arranged at one card slot, and the spring pieces are installed on the card strips corresponding to the same side, and the card strip at the bottom is used as the fulcrum for the compression and swinging of the spring pieces; The spring sheets on both sides of the bayonet form an elastic support portion inclined upward and outward on the outer side of the bayonet, and the first cutter is arranged between the two elastic support portions of the same bayonet; The elastic support portion can be retracted into the inside of the bayonet by being pressed, and does not protrude from the side wall of the first pressing block.

4. The trimming device for a rotary plate bending machine according to claim 3, characterized in that: The push mechanism includes a second cylinder, a push frame, a bracket, a second cutter, and a second spring; The push frame is installed at the end of the piston rod of the second cylinder, and a third guide hole is provided on the push frame. A third guide rod is fixedly provided at the bottom of the bracket correspondingly, and the third guide rod is movably inserted in the third guide hole; a third clip spring for limiting and preventing slipping is provided at the end of the third guide rod; the second spring is sleeved on the third guide rod and clamped between the push frame and the bracket; A first slot is provided on the top of the bracket, and the shape of the first slot is adapted to the middle shape of the carrier strip. The two slot walls of the first slot are provided with strip openings arranged along the length direction. The second cutter is movably mounted on the bracket and arranged corresponding to the strip opening. The second cutter extends out of the strip opening under the drive of the second cylinder to cut the pin part of the workpiece stuck in the first slot.

5. The trimming device for a rotary plate bending machine according to claim 4, characterized in that: The bracket includes two supporting plates arranged opposite to each other, and two frame plates and a supporting plate are arranged on the top of the supporting plates; The two frame plates are fixedly arranged on both sides of the top of the support plate, and a distance is left between the two. The support plate is arranged below the distance between the two frame plates, and the first card slot is formed between the support plate and the two frame plates. The third guide rod is arranged on the bottom surface of the support plate; The second cutter is arranged below the frame plate, and is driven by the second cylinder to move along the width direction of the bracket, so that the blade enters and exits the first clamping groove from the strip opening.

6. The trimming device for a rotary plate bending machine according to claim 5, characterized in that: Support blocks are fixedly provided at both ends of the bottom surface of the support plate, and a first threaded hole penetrating through the two wall surfaces is provided on the support block, and a first guide bolt is installed at the first threaded hole; Fourth guide holes are correspondingly provided on the side walls at both ends of the second cutter, and the first guide bolt is passed through the fourth guide hole, and the second cutter slides along the first guide bolt; a third spring is installed on the first guide bolt, and the third spring is arranged between the second cutter and the support block to provide elastic force for the second cutter to move away from the support block, so that the blade is separated from the first slot; The second cutter is driven by the second cylinder to overcome the elastic force of the third spring, so that the blade enters the first clamping groove.

7. The trimming device for a rotary plate bending machine according to claim 6, characterized in that: The second cutter comprises a cutter body, a support strip is fixedly arranged on the bottom surface of one end of the cutter body away from the cutting edge, and fourth guide holes are arranged at both ends of the support strip; The wall surface of the support bar away from the blade portion is a first inclined surface, and the first inclined surface is inclined upward from the bottom toward the side away from the blade portion; The top surface of the push frame has two sides correspondingly fixed with inclined guide blocks, and the top of the inclined guide block is provided with a second inclined surface on one side close to the center of the push frame, and the second inclined surface is slidably connected with the first inclined surface; The blade of the second cutter is provided with a notch corresponding to the material strip portion of the workpiece; after the second cylinder drives the push frame to move upward until the movement of the bracket is blocked, the second cylinder continues to push to drive the push frame to continue to move upward, and drives the second cutter to move toward the first slot to cut the pin portion of the edge of the material.

8. The trimming device for a rotary plate bending machine according to claim 7, characterized in that: The top surface of the frame plate is inclined downward in a direction away from the first card slot.

9. The trimming device for a rotary plate bending machine according to claim 8, characterized in that: A plurality of third through holes are provided on the material strips of the carrier strips corresponding to the workpieces; A plurality of pads are fixedly provided on the top surface of the support plate, and the shapes of the pads are adapted to the third through holes and the positions thereof are corresponding; When the bracket moves up to the support plate to abut against the object carrier strip, the cushion block passes through the third through hole and abuts against the bottom surface of the material strip of the workpiece to provide support for the cutting of the first cutter.

10. A processing flow of a trimming device for a rotary plate bending machine, characterized in that: The following steps are involved: S1, the workpiece moves to the trimming station along with the carrier bar; S2, the first cylinder pushes out the piston rod, driving the first pressing block to move down to a preset position to press the workpiece; S3, the second cylinder pushes out the piston rod, driving the bracket to move up to the preset position, the support plate is against the load-bearing rack bar, and the cushion block is against the bottom surface of the material bar; during this process, the rack plate pushes the edge material of the workpiece upward to a 90° bend, and compresses the push assembly inward; S4, the first cylinder continues to push out the piston rod, pushing the first push plate downward by a preset distance, and the first cutter cuts the material strip of the workpiece; The second cylinder continues to push out the piston rod, pushing the push frame upward by a preset distance, so that the second cutter moves horizontally to cut off the pin part of the edge of the material; S5, the second cylinder retracts the piston rod to a preset position, so that the bracket is separated from the object rack bar, and the force applied to the push-pull assembly is released; the spring piece of the push-pull assembly is reset and popped outward, and the waste edge material divided into two pieces is popped out to both sides, so that the waste edge material slides downward along the top surface of the rack plate and falls off; S6, the first cylinder and the second cylinder retract the piston rod to the initial position, separate from the workpiece, and prepare for the next batch of workpieces; the turntable rotates the preset angle to drive the workpiece to the next processing station.

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