CN220901596U - Lower die reverse lifting device of special-shaped sheet metal telescopic cutting knife - Google Patents
Lower die reverse lifting device of special-shaped sheet metal telescopic cutting knife Download PDFInfo
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- CN220901596U CN220901596U CN202322673113.5U CN202322673113U CN220901596U CN 220901596 U CN220901596 U CN 220901596U CN 202322673113 U CN202322673113 U CN 202322673113U CN 220901596 U CN220901596 U CN 220901596U
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- 239000002184 metal Substances 0.000 title claims abstract description 101
- 238000005520 cutting process Methods 0.000 title claims abstract description 42
- 230000002093 peripheral effect Effects 0.000 claims abstract description 15
- 230000009471 action Effects 0.000 claims description 27
- 230000006835 compression Effects 0.000 claims description 19
- 238000007906 compression Methods 0.000 claims description 19
- 238000003825 pressing Methods 0.000 claims description 12
- 238000010009 beating Methods 0.000 claims description 4
- 206010066054 Dysmorphism Diseases 0.000 claims description 2
- 230000003028 elevating effect Effects 0.000 claims description 2
- 230000008719 thickening Effects 0.000 claims 1
- 238000012797 qualification Methods 0.000 abstract description 3
- 238000005452 bending Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000007704 transition Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of sheet metal part cutting, in particular to a lower die reverse lifting device of a special-shaped sheet metal telescopic cutting knife, which comprises a middle fixing plate, a first driving component, a second driving component, a left profiling movable lower die, a right profiling movable lower die, a left lower die moving frame, a right lower die moving frame and a first driving component, wherein the profiling movable lower die is tightly matched with the peripheral edge of the special-shaped sheet metal part, and the technical scheme is adopted to lift the cut lower die, so that the lower die is tightly attached to the special-shaped sheet metal part during cutting, the deformation of the special-shaped sheet metal part during cutting is reduced, and the qualification rate of a product after the special-shaped sheet metal part product is cut is improved; when the special-shaped sheet metal part is required to pass through, the lower die is far away from the special-shaped sheet metal part, the gap is increased and adjusted, and the movement of the special-shaped sheet metal part is ensured.
Description
Technical Field
The utility model relates to the technical field of sheet metal part cutting, in particular to a lower die reverse lifting device of a special-shaped sheet metal telescopic cutting knife.
Background
The sheet metal is a comprehensive processing technology aiming at the metal sheet, at present, a plurality of products adopt a sheet metal bending machine to bend a strip-shaped metal sheet into a strip-shaped sheet metal part with special shape, and then cut the strip-shaped special-shaped sheet metal part after bending into different lengths according to different requirements; in general, the flexible cutting knife of dysmorphism panel beating sets up the rear end at the panel beating bending machine, the panel beating bending machine sends the profile sheet metal component that buckles well into between the lower mould and the last sword of flexible cutting knife, for send the piece convenience, all have certain clearance between profile sheet metal component and last sword and the lower mould, it plays the supporting role to set up fixed profile lower mould in the below of profile sheet metal component generally, set up the profile upper knife of motion on profile sheet metal component, then move down the upper knife, cooperation profile lower mould cuts off profile sheet metal component downwards, but because sheet metal's intensity is low, adopt current such lower mould clearance fixed stay, the cutting knife of upper knife down motion can cause under the external force effect of cut off at the upper knife, because there is certain clearance between lower mould and the profile sheet metal component that plays the supporting role, then can cause the severe deformation in profile sheet metal component cutting department, in order to reduce this kind of deformation, the clearance that exists between reduction lower mould and the profile sheet metal component, preferably adopt elevating gear with the lower mould, need through the profile sheet metal component decline, the clearance between the profile sheet metal component is cut off down, the profile sheet metal component is even eliminated when the clearance between the profile sheet metal component is lifted, the profile sheet metal component is even required, the profile sheet metal component is cut off, and the clearance between the profile sheet metal component is even eliminated.
In summary, the applicant provides a lower die reverse lifting device of a special-shaped sheet metal telescopic cutting knife.
Disclosure of utility model
The utility model provides a lower die reverse lifting device of a special-shaped sheet metal telescopic cutting knife, which can lift the cut lower die, so that the lower die is clung to a special-shaped sheet metal part during cutting, thereby reducing deformation of the special-shaped sheet metal part during cutting and improving the qualification rate of a product after the special-shaped sheet metal part product is cut off; when the special-shaped sheet metal part is required to pass through, the lower die is far away from the special-shaped sheet metal part, the gap is increased and adjusted, and the movement of the special-shaped sheet metal part is ensured.
In order to solve the problems, the utility model comprises a middle fixed plate, a first driving component, a left profiling movable lower die, a right profiling movable lower die, a left lower die moving frame and a right lower die moving frame, wherein the inner periphery of the left profiling movable lower die is matched and consistent with the outer periphery of the left part of the special-shaped sheet metal part, and the inner periphery of the right profiling movable lower die is matched and consistent with the outer periphery of the right part of the special-shaped sheet metal part; the left profiling movable lower die is movably fixed on the left lower die moving frame, and the right profiling movable lower die is movably fixed on the right lower die moving frame; under the action of a first driving component, the left lower die moving frame pushes the left profiling movable lower die to be tightly matched with the peripheral edge of the left part of the special-shaped sheet metal part; the right lower die moving frame pushes the right profiling movable lower die to be in close fit with the peripheral edge of the right part of the special-shaped sheet metal part.
The special-shaped sheet metal part is bent into a special shape through a sheet metal bending machine, at least one relatively large middle plane is usually selected to be used as a basic surface, the lower die reverse lifting device of the special-shaped sheet metal telescopic cutting knife adopting the technical scheme is adopted, the special-shaped sheet metal part is firstly cut through a gap between the upper knife and the lower left profiling movable lower die and the right profiling movable lower die, and then the special-shaped sheet metal part is supported in a profiling manner through the left profiling movable lower die and the right profiling movable lower die.
In order to specifically ensure the running track of a left lower thrust block, a right lower thrust block, a left copying tool rest and a right copying tool rest, the special-shaped sheet metal part is clamped and supported by the left lower thrust block and the right lower thrust block better, the special-shaped sheet metal part is cut into sections by the copying tool better, the first driving assembly is limited to comprise a first driving power source, a portal frame, a left side pressure push rod and a right side pressure push rod which are positioned at the upper end, the first driving power source drives the portal frame to move up and down, two sides of the portal frame act on the vertical left side pressure push rod and the right side pressure push rod, the left side lower thrust block with a first right bevel edge is fixed at the inner side of the lower end of the left side pressure push rod, and the right side lower thrust block with the first left bevel edge is fixed at the inner side of the lower end of the right side pressure push rod; the left side of the left lower die moving frame is provided with a second left bevel edge matched with the first left bevel edge of the left lower thrust block, and the right side of the right lower die moving frame is provided with a second right bevel edge matched with the first left bevel edge of the right lower thrust block.
Still further, inject left side pressure push rod with the upper end of right side pressure push rod all is equipped with side pressure frame stroke pole and side pressure frame spring, the upper end of side pressure frame stroke pole passes the entablature of portal, side pressure frame spring cup joints the hypomere of side pressure frame stroke pole. By adopting the structure of the side pressure frame travel rod and the side pressure frame spring, when the first driving component acts, the door frame starts to press downwards, the side pressure frame spring is compressed and deformed firstly, and when certain deformation is achieved, the side pressure frame travel rod, the left side pressure push rod and the right side pressure push rod are driven to move downwards, and conversely, the sequence is opposite.
Furthermore, in order to ensure that the lower die is locked when running to a proper fixed position, on one hand, the special-shaped sheet metal part is not pressed and deformed, on the other hand, the phenomenon of loosening is not caused when the lower die is cut off, so that the cutting effect is better ensured; the right locking hole (arranged in the middle section of the right side pressure push rod, the right spring locking pin device is arranged at the position corresponding to the right locking hole (the right spring locking pin device is arranged at the rear part of the middle fixing plate) and comprises a locking spring pin (and a pre-pressing spring, the pre-pressing spring is pre-pressed at the rear section of the locking spring pin, when the left profiling movable lower die is tightly matched with the peripheral edge of the left part of the special-shaped sheet metal part, the left locking spring pin stretches into the left locking hole under the action of the pre-pressing spring, the left profiling movable lower die is locked, and when the right profiling movable lower die is tightly matched with the peripheral edge of the right part of the special-shaped sheet metal part, the right locking spring pin stretches into the right locking hole under the action of the pre-pressing spring, and the right profiling movable lower die is locked.
Considering that the locking structure can be better locked, when the knife is withdrawn, the locking structure cannot be automatically unlocked, manual unlocking is needed, the device is further limited to be further provided with unlocking devices, the unlocking devices are two corresponding to the positions of the locking devices, each unlocking device comprises an unlocking connecting plate, an unlocking device side plate, an unlocking mounting plate, a wedge plate with a thin upper part and a thick lower part, an unlocking hook, an unlocking tension spring, a sliding compression spring and an unlocking pin, the unlocking mounting plate is fixed on the middle fixing plate, a guide plate groove which slides up and down is formed in the middle of the unlocking mounting plate, the wedge plate is arranged in the guide plate groove, and the upper end of the wedge plate is provided with the sliding compression spring; the outer end of the unlocking connecting plate is fixedly connected with the second driving assembly, and the upper end of the unlocking hook is hinged with the inner end of the unlocking connecting plate; the unlocking tension spring is arranged at the lower end of the unlocking hook, the rear end of the unlocking tension spring is hung on the unlocking hook, the front end of the unlocking tension spring is hung at the lower end of the unlocking mounting plate, and the unlocking hook acts on the wedge surface of the wedge plate under the pretension action of the unlocking tension spring; the side plate of the unlocking device is provided with a movable chute arranged in the front-back direction, the unlocking pin is movably matched and arranged in the movable chute, the unlocking pin is vertically connected with the locking spring pin, the unlocking pin is always preloaded on the wedge surface of the wedge plate under the action of the preloading spring, and when the unlocking pin acts on the thin position of the wedge plate, the locking spring pin stretches into the locking hole and is in a locking state at the moment; when the unlocking pin acts on the position of the wedge plate thickness, the unlocking pin is driven by the wedge plate to backwards withdraw from the locking hole, and is in an unlocking state.
When the upper thin-down thick wedge plate of the unlocking device moves upwards, the spring lock pin withdraws from the locking hole to unlock, and then the lateral pressure push rod can move.
The normal locking stability is guaranteed to such specific structure on the one hand, and on the other hand can ensure smooth unblock again, and wherein, adopt the inclined plane transition mode in the position that moves back locking device couple and moves back locking device wedge plate contact, can be better carry out transition and soft unblock, guarantee the stability of unblock, avoid blocking.
Further, the concrete structure and the working mode of the locking hook are defined as that the locking hook is 7-shaped, a lower inclined boss is arranged at an inner opening of a vertical section of the locking hook, an upper inclined boss is arranged at the bottom of the wedge-shaped plate, and the upper inclined boss and the lower inclined boss are mutually matched; in the unlocking process, the lower inclined boss of the unlocking hook is hung on the upper inclined boss of the wedge plate under the action of the second driving power source, the wedge plate is driven to move upwards, when the thickness of the wedge plate is gradually thickened to drive the locking spring pin to withdraw from the locking hole backwards, the wedge plate slides to the upper end in the guide plate groove, the sliding compression spring is in a compressed state, the lower inclined boss of the unlocking hook is separated from the lower end of the wedge plate along the inclined edge of the upper inclined boss of the wedge plate, the unlocking hook is lifted, and under the downward elastic action of the sliding compression spring and the continuous upward force action of the first driving power source, the locking hole and the locking spring pin are staggered, and the wedge plate moves downwards to recover to the unlocking state.
Furthermore, the locking spring pin is limited to be rectangular, the locking hole is also matched with the rectangular, and the rectangular spring pin can not rotate when being locked by external force relative to the round spring pin, so that the locking effect is better ensured.
By adopting the method, the lower die reverse lifting device of the special-shaped sheet metal telescopic cutting knife and the sheet metal bending machine can be combined and matched for use, the bending into the special-shaped sheet metal part is continuously cut, the flow production is carried out, the cutting effect and the automaticity are ensured, and due to the adoption of the profiling cutting knife and the lower die, different lower dies and cutting knives can be replaced, so that the method is suitable for special-shaped sheet metal parts of various different types of products, and the cutting effect and the qualification rate of the products of the special-shaped sheet metal part are ensured.
Drawings
FIG. 1 is a schematic perspective view of an embodiment;
FIG. 2 is a schematic front view showing the structure of a left-side pressure pushrod in the embodiment;
FIG. 3 is an enlarged schematic view of portion B of FIG. 2;
FIG. 4 is a schematic diagram of the front structure of the cooperation of the profiling movable die, the cutter and the special-shaped sheet metal part in the embodiment;
Fig. 5 is a schematic perspective view of the cooperation structure of the spring lock pin and the unlocking device (the unlocking tension spring is not hung);
FIG. 6 is a schematic view of the position of the unlocking device (showing the sliding compression spring) in combination with a schematic view of the structure in the unlocked state;
FIG. 7 is a schematic view of the cooperation of the position schematic view and the structure of the unlocking device in the locked state;
FIG. 8 is a left side lower thrust block schematic;
Fig. 9 is a schematic view of a lower left die moving frame.
FIG. 10 is a schematic view of a lower right thrust block;
fig. 11 is a schematic view of a lower right die-moving frame.
Detailed Description
The following describes the technical scheme of the present utility model in detail with reference to the accompanying drawings.
As shown in fig. 1-11, a lower die reverse lifting device of a special-shaped sheet metal telescopic cutting knife comprises a middle fixing plate 10, a first driving component 11, a second driving component 12, a left profiling movable lower die 21, a right profiling movable lower die 31, a left lower die movable frame 20, a right lower die movable frame 30, a locking device and a locking device, wherein the first driving component 11 is fixed behind the middle fixing plate 10, and the second driving component 12 is fixed in front of the middle fixing plate 10; the inner periphery of the left profiling movable lower die 21 is matched and consistent with the outer periphery of the left part of the special-shaped sheet metal part 40, and the inner periphery of the right profiling movable lower die 31 is matched and consistent with the outer periphery of the right part of the special-shaped sheet metal part 40; the left profiling movable lower die 21 is movably fixed on the left lower die moving frame 20, and the right profiling movable lower die 31 is movably fixed on the right lower die moving frame 30;
Under the action of the first driving assembly 11, the left lower die moving frame 20 pushes the left profiling movable lower die 21 to be tightly matched with the peripheral edge of the left part of the special-shaped sheet metal part 40; the right lower die moving frame 30 pushes the right profiling movable lower die 31 to be tightly matched with the peripheral edge of the right part of the special-shaped sheet metal part 40;
The first driving assembly comprises a first driving power source 110, a portal 111, a left side pressure push rod 113 and a right side pressure push rod 114 which are positioned at the upper end, wherein the first driving power source 110 drives the portal 111 to move up and down, two sides of the portal 111 act on the vertical left side pressure push rod 113 and the right side pressure push rod 114, a left side lower thrust block 150 with a first right bevel edge 151 on the right side is fixed on the inner side of the lower end of the left side pressure push rod 113, and a right side lower thrust block 160 with a first left bevel edge 161 is fixed on the inner side of the lower end of the right side pressure push rod 114; the left side of the left lower die moving frame 20 is provided with a second left oblique side 201 matched with the first right oblique side 151 of the left lower thrust block, and the right side of the right lower die moving frame 30 is provided with a second right oblique side 301 matched with the first left oblique side 161 of the right lower thrust block.
The upper ends of the left side pressure push rod and the right side pressure push rod are respectively provided with a side pressure frame travel rod 119 and a side pressure frame spring 118, the upper end of the side pressure frame travel rod 119 penetrates through the upper cross beam of the portal 111, and the side pressure frame spring 118 is sleeved on the lower section of the side pressure frame travel rod 119.
The number of the locking devices is two, each locking device comprises a spring lock pin device and a locking hole 1130, the left locking hole 1130 is arranged at the middle section of the left side pressure push rod 113, and the left spring lock pin device is arranged at the rear of the middle fixing plate 10 at the position corresponding to the left locking hole 1130; the right locking hole 1130 is arranged in the middle section of the right pressure push rod 114, and the right spring lock pin device is arranged at the position corresponding to the right locking hole 1130 behind the middle fixing plate; the spring lock pin device comprises a locking spring pin 1131 and a pre-pressing spring 1132 which are arranged in the front-back direction, the pre-pressing spring 1132 is pre-pressed at the rear section of the locking spring pin 1131, when the left profiling movable lower die 21 is tightly matched with the peripheral edge of the left part of the special-shaped sheet metal part 40, the left locking spring pin 1131 stretches into a left locking hole 1130 under the action of the pre-pressing spring 1132, and the left profiling movable lower die 21 is locked; when the right profiling movable lower die 31 is tightly matched with the peripheral edge of the right part of the special-shaped sheet metal part 40, the right locking spring pin 1131 stretches into the right locking hole 1130 under the action of the pre-pressing spring 1132, and the right profiling movable lower die 31 is locked.
The unlocking device comprises two unlocking connecting plates 1151, unlocking device side plates 1152, unlocking mounting plates 1153, wedge plates 1154 with thin upper parts and thick lower parts, unlocking hooks 1155, unlocking tension springs 1156, sliding compression springs 1157 and unlocking pins 1158, wherein the unlocking mounting plates 1153 are fixed on the middle fixing plate 10, guide plate grooves 1159 sliding up and down are formed in the middle of the unlocking mounting plates 1153, the wedge plates 1154 are arranged in the guide plate grooves 1159, and the sliding compression springs 1157 are arranged at the upper ends of the wedge plates 1154; the outer end of the unlocking connection plate 1151 is fixedly connected with the second driving assembly 12, and the upper end of the unlocking hook 1155 is hinged with the inner end of the unlocking connection plate 1151; the unlocking tension spring 1156 is arranged at the lower end of the unlocking hook 1155, the rear end of the unlocking tension spring 1156 is hung on the unlocking hook 1155, the front end of the unlocking tension spring 1156 is hung at the lower end of the unlocking mounting plate 1153, and the unlocking hook 1155 acts on the wedge surface of the wedge plate 1154 under the pre-tensioning action of the unlocking tension spring 1156; the side plate 1152 of the unlocking device is provided with a moving chute 1160 arranged in the front-back direction, the unlocking pin 1158 is movably matched and arranged in the moving chute 1160, the unlocking pin 1158 is vertically connected with the locking spring pin 1131, the unlocking pin 1158 is always preloaded on the wedge surface of the wedge plate 1154 under the action of the preloading spring 1132, and when the unlocking pin 1158 acts on the thin position of the wedge plate 1154, the locking spring pin 1131 stretches into the locking hole 1130 and is in a locking state at the moment; when the unlocking pin 1158 acts on the thick portion of the wedge plate 1154, the unlocking pin 1158 is driven by the wedge plate to withdraw the locking spring pin 1131 back out of the locking hole, and is in an unlocked state.
The unlocking hook 1155 is 7-shaped, a lower inclined boss 1161 is arranged at an inner opening of a vertical section of the unlocking hook, an upper inclined boss 1162 is arranged at the bottom of the wedge-shaped plate, and the upper inclined boss 1162 and the lower inclined boss 1161 are matched with each other; during unlocking, the lower inclined boss 1161 of the unlocking hook 1155 is hung on the upper inclined boss 1162 of the wedge plate under the action of the second driving power source 120, the wedge plate is driven to move upwards, when the wedge plate is gradually thickened to drive the locking spring pins 1131 to withdraw from the locking holes 1130 backwards, the wedge plate 1154 slides to the upper end in the guide plate grooves 1159, the sliding compression springs 1157 are in a gradually compressed state, after the sliding compression springs 1157 are compressed to a certain extent, when the pressure of the sliding compression springs 1157 is greater than the pulling force of the unlocking tension springs 1156, the lower inclined boss 1161 of the unlocking hook 1155 is separated from the lower end of the wedge plate 1154 along the inclined edge of the upper inclined boss 1162 of the wedge plate 1154, the unlocking hook is lifted, under the downward elastic action of the sliding compression springs 1157 and simultaneously under the continuous upward force action of the first driving power source 110, the locking holes 1130 are staggered with the locking spring pins 1131, and the downward movement of the wedge plate 1154 is restored to the unlocking state.
The application method of the lower die reverse lifting device of the special-shaped sheet metal telescopic cutting knife comprises the following steps of:
1) The special-shaped sheet metal telescopic cutting knife is arranged at the rear end of the sheet metal bending machine, and the special-shaped sheet metal part 40 passes through a gap formed by the upper surface of the left profiling movable lower die 21, the upper surface of the right profiling movable lower die 31 and the cutting knife, so that the special-shaped sheet metal part 40 can smoothly pass through the upper surface of a lower die reverse lifting device of the special-shaped sheet metal telescopic cutting knife;
2) Starting the first driving power source 110 to downwards convey pressure, wherein the first driving power source 110 applies a downward pressure on the door frame 111, in the beginning stage, the door frame 111 applies the downward pressure on the side pressure frame spring 118 under the guidance of the side pressure frame travel rod 119, the left side pressure push rod 113 and the right side pressure push rod 114 are driven to downwards move after the side pressure frame spring 118 is deformed, and simultaneously the left side lower thrust block 150 and the right side lower thrust block 160 are driven to downwards move, so that the left lower die moving frame 20 pushes the left profiling movable lower die 21 to be in close fit with the left part peripheral edge of the profiled sheet metal part 40, and meanwhile, the right lower die moving frame 30 pushes the right profiling movable lower die 31 to be in close fit with the right part peripheral edge of the profiled sheet metal part 40;
3) When the tight fitting is completed, the positions of the left side pressure push rod 113 and the right side pressure push rod 114 just move to the locking position, and at this time, under the action of the pre-compression spring 1132, the locking spring pin 1131 stretches into the locking hole 1130; at this time, the left side push rod 113 and the right side push rod 114 are locked, and the downward movement is stopped, and the cutter is at the pre-cutting position;
4) In the cutting process of the cutter, the second driving power source 120 drives the unlocking hook 1155 of the unlocking device to move downwards, and when the special-shaped sheet metal part is completely cut off, the hook head of the unlocking hook 1155 is positioned at the bottom of the wedge-shaped plate 1154 hung on the upper thin part and the lower thick part;
7) The second driving power source 120 and the first driving power source 110 convey pulling force upwards to drive the cutter to move upwards, meanwhile, the second driving power source 120 drives the unlocking hook 1155 to drive the wedge plate 1154 with the hook head of the unlocking hook 1155 to move upwards, the lower inclined boss 1161 of the unlocking hook 1155 is hung on the upper inclined boss 1162 of the wedge plate to drive the wedge plate to move upwards, when the wedge plate thickness gradually increases to drive the locking spring pin 1131 to withdraw from the locking hole 1130 backwards, the wedge plate 1154 slides to the upper end in the guide plate groove 1159, the sliding compression spring 1157 is in a compressed state, the lower inclined boss 1161 of the unlocking hook 1155 is separated from the lower end of the wedge plate 1154 along the inclined side of the upper inclined boss 1162 of the wedge plate 1154, the hook head of the unlocking hook 1155 is rotated outwards to be high, under the downward restoring force of the sliding compression spring 7 and simultaneously under the action of the first driving power source 110, and the locking force of the wedge plate 1151 is continuously staggered to the locking hole 1130 downwards;
8) Then, in a state that the first driving power source 110 and the second driving power source 120 continue to convey the tensile force upwards, the gantry 111 drives the left side pressure push rod 113 and the right side pressure push rod 114 to move upwards, until the left side lower thrust block 150 and the right side lower thrust block 160 return to the initial positions under the action of gravity, when the cutter returns to the pre-cutting position, a gap is formed between the cutter and the left profiling movable lower die 21 and between the cutter and the right profiling movable lower die 31, so that the profiled sheet metal part is ensured to pass through the telescopic cutting machine of the profiled sheet metal part 40;
The cutting of the next section of profiled sheet metal part 40 is continued.
Compared with the prior art, the lower die reverse lifting device of the special-shaped sheet metal telescopic cutting knife has the advantages that the effect is mainly represented in the aspect of a lower structure,
1. Because the lower die moving frame (comprising the left lower die moving frame 20 and the right lower die moving frame 30) is adopted, different profiling movable lower dies can be randomly replaced in the lower die moving frame, and the lower die moving frame is suitable for various different special-shaped sheet metal parts, has wide applicability and is convenient to replace.
2. Because the profiling movable lower die is adopted, the inner periphery of the profiling movable lower die is matched with the outer periphery of the special-shaped sheet metal part, so that the profiling movable lower die (comprising a left profiling movable lower die and a right profiling movable lower die) can more closely support the special-shaped sheet metal part, the special-shaped sheet metal part can not deform in the cutting process, and meanwhile, the special-shaped sheet metal part can pass when the special-shaped sheet metal part is not cut;
3. The side lower thrust blocks (comprising the left lower thrust block 150 and the right lower thrust block 160) are adopted to act on the bevel edges, and the profiling movable lower die is moved directionally and in a fixed track by utilizing the relative movement of the bevel edges, so that the movable lower die can be guaranteed to be attached to support the special-shaped sheet metal part.
4. The spring lock pin device (comprising a left spring lock pin device and a right spring lock pin device) can better lock the profiling movable lower die, so that the stability during cutting is ensured;
5. The structure of the unlocking device can automatically push away the spring lock pin device by means of the structure of the left unlocking device wedge plate, which is thin at the top and thick at the bottom, so that the unlocking is not needed, the work is stable and safe, and the continuous work is supported without ensuring the position restoration of the cutter.
The present embodiment is not intended to limit the scope of the utility model, and those skilled in the art, after reading the present specification, may make modifications to the embodiment which do not creatively contribute to the present utility model as required, but are protected by patent laws within the scope of the claims of the present utility model.
Claims (6)
1. Reverse elevating gear of lower mould of flexible cutting knife of dysmorphism panel beating, its characterized in that: the device comprises a middle fixing plate (10), a first driving assembly (11), a left profiling movable lower die (21), a right profiling movable lower die (31), a left lower die moving frame (20) and a right lower die moving frame (30), wherein the inner periphery of the left profiling movable lower die (21) is matched and consistent with the outer periphery of the left part of a special-shaped sheet metal part (40), and the inner periphery of the right profiling movable lower die (31) is matched and consistent with the outer periphery of the right part of the special-shaped sheet metal part (40); the left profiling movable lower die (21) is movably fixed on the left lower die moving frame (20), and the right profiling movable lower die (31) is movably fixed on the right lower die moving frame (30); under the action of a first driving assembly (11), the left lower die moving frame (20) pushes the left profiling movable lower die (21) to be in close fit with the peripheral edge of the left part of the special-shaped sheet metal part (40); the right lower die moving frame (30) pushes the right profiling movable lower die (31) to be tightly matched with the peripheral edge of the right part of the special-shaped sheet metal part (40).
2. The lower die reverse lifting device of the special-shaped sheet metal telescopic cutting knife according to claim 1, wherein: the first driving assembly comprises a first driving power source (110) positioned at the upper end, a portal frame (111), a left side pressure push rod (113) and a right side pressure push rod (114), wherein the first driving power source (110) drives the portal frame (111) to move up and down, two sides of the portal frame (111) act on the vertical left side pressure push rod (113) and the right side pressure push rod (114), a left side lower thrust block (150) with a first right oblique side (151) on the right side is fixed on the inner side of the lower end of the left side pressure push rod (113), and a right side lower thrust block (160) with a first left oblique side (161) is fixed on the inner side of the lower end of the right side pressure push rod (114); the left side of the left lower die moving frame (20) is provided with a second left bevel edge (201) matched with the first right bevel edge (151) of the left lower thrust block, and the right side of the right lower die moving frame (30) is provided with a second right bevel edge (301) matched with the first left bevel edge (161) of the right lower thrust block.
3. The lower die reverse lifting device of the special-shaped sheet metal telescopic cutting knife according to claim 2, wherein: the upper end of the left side pressure push rod and the upper end of the right side pressure push rod are respectively provided with a side pressure frame travel rod (119) and a side pressure frame spring (118), the upper end of the side pressure frame travel rod (119) penetrates through the upper cross beam of the portal (111), and the side pressure frame spring (118) is sleeved at the lower section of the side pressure frame travel rod (119).
4. A lower die reverse lifting device of a special-shaped sheet metal telescopic cutting knife as claimed in claim 3, wherein: the device also comprises two locking devices, each locking device comprises a spring lock pin device and a locking hole (1130), the left locking hole (1130) is arranged in the middle section of the left pressure push rod (113), and the left spring lock pin device is arranged at the position corresponding to the left locking hole (1130) behind the middle fixing plate (10); the right locking hole (1130) is arranged in the middle section of the right pressure push rod (114), and the right spring lock pin device is arranged at the position corresponding to the right locking hole (1130) behind the middle fixing plate; the spring lock pin device comprises a locking spring pin (1131) and a pre-pressing spring (1132) which are arranged in the front-back direction, wherein the pre-pressing spring (1132) is pre-pressed at the rear section of the locking spring pin (1131), when the left profiling movable lower die (21) is tightly matched with the peripheral edge of the left part of the special-shaped sheet metal part (40), the left locking spring pin (1131) stretches into a left locking hole (1130) under the action of the pre-pressing spring (1132), and the left profiling movable lower die (21) is locked; when the right profiling movable lower die (31) is tightly matched with the peripheral edge of the right part of the special-shaped sheet metal part (40), the right locking spring pin (1131) stretches into the right locking hole (1130) under the action of the pre-pressing spring (1132), and the right profiling movable lower die (31) is locked.
5. The lower die reverse lifting device of the special-shaped sheet metal telescopic cutting knife according to claim 4, wherein: the novel anti-theft lock is characterized by further comprising two unlocking devices and a second driving assembly (12), wherein the two unlocking devices correspond to the positions of the locking devices, each unlocking device comprises an unlocking connecting plate (1151), an unlocking device side plate (1152), an unlocking mounting plate (1153), a wedge plate (1154) with thin upper part and thick lower part, an unlocking hook (1155), an unlocking tension spring (1156), a sliding compression spring (1157) and an unlocking pin (1158), the unlocking mounting plate (1153) is fixed on the middle fixing plate (10), a guide plate groove (1159) which slides up and down is arranged in the middle of the unlocking mounting plate (1153), and the wedge plate (1154) is arranged in the guide plate groove (1159), and the upper end of the wedge plate (1154) is provided with the sliding compression spring (1157); the outer end of the unlocking connecting plate (1151) is fixedly connected with the second driving assembly (12), and the upper end of the unlocking hook (1155) is hinged with the inner end of the unlocking connecting plate (1151); the unlocking tension spring (1156) is arranged at the lower end of the unlocking hook (1155), the rear end of the unlocking tension spring (1156) is hung on the unlocking hook (1155), the front end of the unlocking tension spring (1156) is hung at the lower end of the unlocking mounting plate (1153), and under the pretension action of the unlocking tension spring (1156), the unlocking hook (1155) acts on the wedge surface of the wedge plate (1154); the unlocking device is characterized in that a movable chute (1160) arranged in the front-back direction is arranged on a side plate (1152) of the unlocking device, an unlocking pin (1158) is movably matched and arranged in the movable chute (1160), the unlocking pin (1158) is vertically connected with a locking spring pin (1131), the unlocking pin (1158) is always preloaded on the wedge surface of a wedge plate (1154) under the action of a pre-compression spring (1132), and when the unlocking pin (1158) acts on the thin position of the wedge plate (1154), the locking spring pin (1131) stretches into the locking hole (1130) and is in a locking state at the moment; when the unlocking pin (1158) acts on the thick position of the wedge-shaped plate (1154), the unlocking pin (1158) is driven by the wedge-shaped plate to back out of the locking hole by the locking spring pin (1131), and the unlocking pin is in an unlocking state.
6. The lower die reverse lifting device of the special-shaped sheet metal telescopic cutting knife according to claim 5, wherein: the unlocking hook (1155) is 7-shaped, a downward inclined boss (1161) is arranged at an inner opening of a vertical section of the unlocking hook, an upward inclined boss (1162) is arranged at the bottom of the wedge-shaped plate, and the upward inclined boss (1162) and the downward inclined boss (1161) are mutually matched; during unlocking, under the action of the second driving power source (120), the lower inclined boss (1161) of the unlocking hook (1155) is hung on the upper inclined boss (1162) of the wedge plate, the wedge plate is driven to move upwards, when the locking spring pin (1131) is driven to withdraw from the locking hole (1130) backwards by gradually thickening the thickness of the wedge plate, the wedge plate (1154) slides to the upper end in the guide plate groove (1159), the sliding compression spring (1157) is in a compressed state, the inclined boss (1161) of the unlocking hook (1155) is separated from the lower end of the wedge plate (1154) along the inclined edge of the upper inclined boss (1162) of the wedge plate (1154), the unlocking hook is lifted, and under the downward elastic action of the sliding compression spring (1157) and the continuous upward force action of the first driving power source (110), the locking hole (1130) and the locking spring pin (1131) are staggered to the position (1154) and restore to the unlocking state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322673113.5U CN220901596U (en) | 2023-10-07 | 2023-10-07 | Lower die reverse lifting device of special-shaped sheet metal telescopic cutting knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322673113.5U CN220901596U (en) | 2023-10-07 | 2023-10-07 | Lower die reverse lifting device of special-shaped sheet metal telescopic cutting knife |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220901596U true CN220901596U (en) | 2024-05-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322673113.5U Active CN220901596U (en) | 2023-10-07 | 2023-10-07 | Lower die reverse lifting device of special-shaped sheet metal telescopic cutting knife |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220901596U (en) |
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2023
- 2023-10-07 CN CN202322673113.5U patent/CN220901596U/en active Active
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