Bending center cutter splicing device

Abstract

The invention discloses a bending center splicing cutter device which comprises a sliding cutter assembly. The sliding knife assembly comprises a plurality of sliding knives; the top of each sliding cutter is slidably mounted on the connecting block and can slide in the length direction of the connecting block. Each sliding knife comprises a mold body, a fine adjustment mechanism and a pressing mechanism; the fine adjustment mechanism is arranged on the side, close to the tool nose, of the die body and matched with the front end of the connecting block. The fine adjustment mechanism can adjust the position of a tool nose in the die body in the horizontal direction; the pressing mechanism is arranged on the side opposite to the fine adjustment mechanism in direction, and the pressing mechanism is used for pressing the die body on the connecting block in a gapless mode. The precision of each sliding cutter can be independently adjusted, and a mold gap can be tightly pressed, so that zero gap is achieved in the mold machining process, and the mold machining precision and consistency are further guaranteed.

Description

Technical Field

[0001] The present invention relates to a plate bending processing device, in particular to a knife - splicing device for a bending center. Background Art

[0002] As an important part of the manufacturing field, the metal plate processing industry has seen an increasing demand for automation and intelligence in recent years with the continuous rise of labor costs. Metal plate processing is a typical processing mode of small batches and multiple varieties, and workpiece switching is often required. The bending center is the most core equipment in metal plate manufacturing. The degree of intelligence, processing efficiency, and processing accuracy of the bending center directly determine the technical level of the industry. However, workpiece switching generally requires mold replacement, and manual mold replacement is time - consuming and laborious.

[0003] In addition, in recent years, due to the country's increasing emphasis on environmental protection, the traditional sheet metal manufacturing process is in sequence: cutting and blanking, bending, welding, etc. Among them, the welding process has problems such as pollution, high energy consumption, and high welding labor costs. Therefore, an assembly method is usually used to replace the welding process. However, for workpieces with complex structures, the length of the mold usually needs to be assembled during the processing. If the mold is switched manually at this time, it is obviously infeasible. Therefore, automatic splicing of the mold length during the processing is a necessity in the industry.

[0004] In recent years, the export of domestic machine tool products has been increasing year by year. Among them, customers in South Korea, Russia, Turkey, Mexico and other countries are very fond of the automatic knife - splicing function, and the market demand is strong.

[0005] At present, the automatic knife - splicing technology of the bending center installs and guides the mold body through the "matching surface". In the process of use, the following problems exist and need to be improved.

[0006] 1. The processing accuracy requirements for the surface are very high. Usually, a slow - wire cutting process is required to complete it. The processing efficiency is very low, and the processing cost is high, and industrialization cannot be formed.

[0007] 2. Since the processing accuracies of multiple mold bodies must be kept consistent, the accuracy deviation of individual molds will lead to the whole set of molds being sent back to the factory for repair or even scrapped. According to actual experience, sometimes the whole set of molds is sent back to the factory for repair even 5 - 6 times and still cannot meet the requirements. The accuracy of the whole set of molds completely depends on the processing accuracy and cannot be finely adjusted on - site during processing.

[0008] 3. Wear will occur after long - term use, resulting in poor accuracy. There is no way to remedy it, and only the accuracy standard can be reduced for use. The processing accuracy of the workpiece is only so - so.

[0009] 4. If the clearance of the "mating surface" is not well controlled, too large a clearance will affect the machining accuracy, and too small a clearance will easily cause the mold to jam and malfunction.

[0010] 5. The tool hanging mechanism of the insert tool is complex in structure, high in machining and manufacturing accuracy, unreliable in locking, often has locking failures, resulting in downtime during the machining process and even causing safety accidents.

[0011] 6. The structure of the opening and closing middle tool is complex, with poor guiding stiffness, affecting the machining accuracy.

[0012] 7. The stiffness matching of the sliding tool, insert tool, and opening and closing middle tool is not good. Under the action of the load, the deformation amounts of the three tools are inconsistent, causing accuracy deviation in the bending process. Summary of the Invention

[0013] The technical problem to be solved by the present invention is to provide a bending center combined tool device in view of the deficiencies of the above-mentioned prior art. In this bending center combined tool device, the accuracy of each sliding tool can be independently adjusted, and the mold clearance can be tightened, so that there is zero clearance during the mold machining process, thereby ensuring the machining accuracy and consistency of the mold.

[0014] To solve the above technical problems, the technical solution adopted by the present invention is:

[0015] A bending center combined tool device includes a sliding tool assembly.

[0016] The bending center has a slider whose height can be raised and lowered, and a connecting block is arranged at the bottom of the slider along the length direction.

[0017] The sliding tool assembly includes a plurality of sliding tools, and the top of each sliding tool is movably connected to the connecting block.

[0018] Each sliding tool includes a mold body, a fine adjustment mechanism, and a pressing mechanism.

[0019] The fine adjustment mechanism is arranged on one side of the mold body close to the tool tip and is adapted to the front end of the connecting block; the fine adjustment mechanism can adjust the position of the tool tip in the horizontal direction in the mold body.

[0020] The pressing mechanism is arranged on the side opposite to the direction of the fine adjustment mechanism, and the pressing mechanism is used to tightly press the mold body against the connecting block without clearance.

[0021] The fine adjustment mechanism includes an adjustment block and an adjustment element.

[0022] The adjustment block is integrally or separately arranged with the mold body, and a bearing positioning surface that can cooperate with the connecting block is arranged on the top of the adjustment block.

[0023] The adjustment element can adjust the position of the tool tip in the horizontal direction in the mold body.

[0024] The adjusting block located below the bearing positioning surface is integrally or separately movably connected to the mold body to form a movable connection point.

[0025] The adjusting element adjusts the adjusting block, which can form a lever structure with the movable connection point as the rotation fulcrum, thereby adjusting the position of the bearing positioning surface, and further realizing the adjustment of the position of the cutting edge in the mold body in the horizontal direction.

[0026] The adjusting block is separately arranged from the mold body. The middle or upper-middle part of the adjusting block located below the bearing positioning surface is hinged to the mold body, and the hinge point is the rotation fulcrum.

[0027] The adjusting block is integrally arranged with the mold body. The middle or upper-middle part of the adjusting block located below the bearing positioning surface has an integrally arranged flexible connection point with the mold body, and there is a stress relief groove between the adjusting block below the flexible connection point and the mold body; among them, the flexible connection point is the rotation fulcrum.

[0028] The adjusting block is slidably and separately arranged from the mold body. The adjusting block can be driven by the adjusting element to cooperate with the mold body in a sliding pair to realize the adjustment of the position of the bearing positioning surface, and further realize the adjustment of the position of the cutting edge in the mold body in the horizontal direction.

[0029] The adjusting block and the mold body are in transverse sliding pair cooperation; during the transverse sliding process, they are guided by a laterally arranged guiding member.

[0030] The adjusting block and the mold body are in vertical sliding pair cooperation; the adjusting element drives the vertical sliding of the adjusting block through conical surface cooperation.

[0031] The adjusting element is an adjusting screw, and the adjusting screw is in threaded pair cooperation with the adjusting block or the mold body. By rotating the adjusting screw, the adjustment of the position accuracy of the cutting edge in the mold body in the horizontal direction is realized.

[0032] The fine adjustment mechanism includes an adjusting screw.

[0033] A bearing positioning protrusion is provided at the top of the mold body.

[0034] The adjusting screw is in threaded pair cooperation with the bearing positioning protrusion, and the end of the adjusting screw passes through the bearing positioning protrusion and is directly or indirectly cooperated with the connecting block; by rotating the adjusting screw, the adjustment of the position accuracy of the cutting edge in the mold body in the horizontal direction can be realized.

[0035] The pressing mechanism includes a pressing member and a pressing power element.

[0036] The pressing member has a pressing mating surface that mates with the connecting block.

[0037] The pressing power element drives the pressing member to move, so that the pressing mating surface presses tightly against the connecting block without clearance; wherein, the driving direction of the pressing power element is opposite to, the same as, or perpendicular to the clamping direction of the pressing member.

[0038] The pressing member is a pressing arm, the pressing mating surface is arranged at the top of the pressing arm, and the pressing arm is hinged to the die body.

[0039] The pressing power element drives the pressing arm, and the driving direction is opposite to the clamping direction of the pressing arm.

[0040] The pressing power element is a direct driving assembly or an indirect driving assembly of the pressing arm; wherein,

[0041] The direct driving assembly of the pressing arm includes spring, pneumatic, electric or manual.

[0042] The indirect driving assembly of the pressing arm includes a plunger and a plunger telescopic driving mechanism; the plunger telescopic driving mechanism includes spring, pneumatic, electric or manual.

[0043] The pressing member is a pressing block or a plunger one; the pressing mating surface is arranged inside the pressing member.

[0044] The driving direction of the pressing power element for the pressing member is the same as the clamping direction of the pressing member.

[0045] The pressing member is a horizontally arranged clamping block; one side of the clamping block is provided with the pressing mating surface, and the other side of the clamping block is provided with a driving inclined surface.

[0046] The pressing power element is in sliding pair cooperation with the driving inclined surface, and the driving direction of the pressing power element for the pressing member is perpendicular to the clamping direction of the pressing member.

[0047] A bending center combined tool device includes an opening and closing middle tool assembly arranged in the middle of the connecting block.

[0048] The opening and closing middle tool assembly includes a middle tool seat, a vertical tool, a vertical tool lifting mechanism, two side tools and an X-direction opening and closing mechanism.

[0049] The middle tool seat is installed on the connecting block.

[0050] The vertical tool is in sliding pair cooperation with the middle tool seat in the vertical Y direction and can make an active vertical Y-direction sliding along the middle tool seat under the drive of the vertical tool lifting mechanism.

[0051] The two side tools are symmetrically arranged on both sides of the vertical tool at the bottom of the middle tool seat, and each side tool can make an opening and closing movement along the length X direction of the connecting block under the drive of the X-direction opening and closing mechanism.

[0052] The two sides of the middle tool seat are provided with middle tool guiding protrusions.

[0053] The vertical knife lifting mechanism includes a lifting rod, a lifting drive device, and a locking plunger.

[0054] The lifting drive device is connected to the vertical knife through the lifting rod, and then drives the vertical knife to slide vertically in the Y direction along the middle knife seat.

[0055] The locking plunger is used to lock the lifting rod.

[0056] It further includes two groups of blade library components.

[0057] One group of the blade library components is arranged on each side of the opening and closing middle knife assembly.

[0058] Each group of blade library components includes a knife hanging mechanism and several blades;

[0059] The knife hanging mechanism includes a blade seat, a support seat, and a Z-direction drive mechanism.

[0060] The support seat is arranged on the outer side of the slider.

[0061] The upper part of the blade seat is slidably connected to the support seat in the Z direction, and all the blades are movably installed on the lower part of the blade seat; each blade can rotate.

[0062] The Z-direction drive mechanism can drive the blade seat to reciprocate slidably in the Z direction perpendicular to the slider, so as to realize the knife removing or knife hanging action of the blade.

[0063] Each group of blade library components further includes a gap uniform distribution mechanism.

[0064] The gap uniform distribution mechanism includes a gap uniform distribution plate and a gap adjustment drive device.

[0065] The gap uniform distribution plate is slidably arranged on the knife hanging mechanism.

[0066] The X-direction opening and closing mechanism includes two fork levers and two groups of X-direction opening and closing drive devices for the fork levers.

[0067] The two fork levers are arranged on two gap uniform distribution plates or two knife hanging mechanisms except the gap uniform distribution plates.

[0068] The bottom of each fork lever is connected to the corresponding side knife.

[0069] The X-direction opening and closing drive device can drive the corresponding group of blade library components to slide in the X direction, and then synchronously drive the corresponding fork lever and side knife to slide in the X direction, so as to realize the opening and closing movement of the two side knives.

[0070] The gap adjustment drive device can drive the gap uniform distribution plate to slide in the X direction.

[0071] The present invention has the following beneficial effects:

[0072] 1. The present invention has low requirements for processing accuracy, low production and manufacturing costs, high efficiency, and can realize industrialization.

[0073] 2. The present invention can finely adjust the precision. When there is a deviation in the processing precision at the customer site, the precision can be adjusted conveniently and quickly.

[0074] 3. The present invention compresses the gap through the pressing mechanism, which can ensure zero gap during the die processing, and ensure the stability and consistency of the precision.

[0075] 4. When there are precision problems with individual dies, the present invention can be conveniently interchanged without the need for rework of the entire set of dies.

[0076] 5. The tool hanging mechanism of the insert tool has a simple, convenient structure, is easy to process and manufacture, and the tool hanging action is safe and reliable.

[0077] 6. Since the opening and closing intermediate tool adopts a fixed structure of the intermediate tool seat, it has a large guiding rigidity, is simple to manufacture and process, has a low cost, and has higher precision.

[0078] 7. The present invention can also match the structural rigidity of different types of dies through numerical simulation technology, making the rigidity of different types of dies similar, ensuring that the elastic deformation amounts of different types of dies are consistent during the processing, and further improving the processing precision.

[0079] 8. The present invention can also ensure the consistency of the deformation of each die through the "block protrusion" of the die when the die is not fully stressed.

[0080] 9. The gap uniform distribution mechanism in the present invention can reduce the gap and improve the quality of bending processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0081] Figure 1 Shows a schematic structural diagram of a bending center combined tool device of the present invention.

[0082] Figure 2 Shows a three-dimensional line drawing of the sliding tool assembly in the present invention.

[0083] Figure 3 Shows a schematic sectional connection structure diagram of the sliding tool and the connecting block in the present invention.

[0084] Figure 4 Shows a line structure schematic diagram of the opening and closing intermediate tool assembly in the present invention.

[0085] Figure 5 Shows a schematic structural diagram of the opening and closing intermediate tool assembly in the present invention; wherein, (a) is a partial three-dimensional structure of the opening and closing intermediate tool assembly; (b) is a partial enlarged schematic diagram of the intermediate tool seat; (c) is a partial perspective view of the installation of the intermediate tool seat and the side tool; (d) is a positioning and guiding assembly schematic diagram of the intermediate tool seat and the sliding tool; (e) is a positioning and guiding assembly schematic diagram of the intermediate tool seat and the insert tool.

[0086] Figure 6 Shows the schematic diagram of the line structure of the blade library component in the present invention.

[0087] Figure 7 Shows the three-dimensional schematic diagram of the installation position of the blade library component and the slider in the present invention.

[0088] Figure 8 Shows the three-dimensional schematic diagram of the tool selection mechanism in the blade library component in the present invention.

[0089] Figure 9 Shows the three-dimensional schematic diagram of the rotation of the blade in the blade library component in the present invention.

[0090] Figure 10 Shows the schematic diagram of the blade hanging, blade disengaging and rotation in the present invention; wherein, (a) is the schematic diagram of blade hanging; (b) is the schematic diagram of blade disengaging after Z-direction sliding; (c) is the schematic diagram of rotation after blade disengaging.

[0091] Figure 11 Shows the schematic diagram of the structure of Embodiment 1 of the fine adjustment mechanism in the present invention; wherein, (a) is the three-dimensional schematic diagram with the hinge point located in the middle; (b) is the sectional view with the hinge point located in the middle; (c) is the three-dimensional diagram with the hinge point located at the bottom.

[0092] Figure 12 Shows the schematic diagram of the structure of Embodiment 2 of the fine adjustment mechanism in the present invention; wherein, (a) is the three-dimensional schematic diagram; (b) is the side view; (c) is the partial sectional view.

[0093] Figure 13 Shows the schematic diagram of the simulation of the fine adjustment principle of Embodiment 2 of the fine adjustment mechanism in the present invention.

[0094] Figure 14 Shows the schematic diagram of the structure of Embodiment 3 of the fine adjustment mechanism in the present invention without adding a gasket to the adjusting screw; wherein, (a) is the three-dimensional schematic diagram; (b) is the partial sectional view.

[0095] Figure 15 Shows the schematic diagram of the structure of Embodiment 3 of the fine adjustment mechanism in the present invention with a gasket added to the adjusting screw; wherein, (a) is the three-dimensional schematic diagram; (b) is the partial sectional view.

[0096] Figure 16 Shows the schematic diagram of the structure of Embodiment 4 of the fine adjustment mechanism in the present invention; wherein, (a) is the three-dimensional schematic diagram of the first sliding pair in Embodiment 4; (b) is the sectional view of (a); (c) is the three-dimensional schematic diagram of the second sliding pair in Embodiment 4; (d) is the diagram of another layout method of the adjusting screw.

[0097] Figure 17Shows the structural schematic diagram of Embodiment 5 of the fine-tuning mechanism in the present invention; among them, (a) is the three-dimensional schematic diagram; (b) is the sectional view of (a); (c) is the partial enlarged sectional view; (d) is the three-dimensional schematic diagram of the mold body; (e) is the diagram of another layout method of the adjusting screw.

[0098] Figure 18 Shows the simulation schematic diagram of the mold stiffness matching in the sliding tool assembly in the present invention; among them, (a) is the simulation schematic diagram of the mold stiffness matching in Embodiment 1; (b) is the simulation schematic diagram of the mold stiffness matching in Embodiment 3.

[0099] Figure 19 Shows the structural schematic diagram of Embodiment 1 of the pressing mechanism in the present invention; among them, (a) is the three-dimensional schematic diagram; (b) is the sectional view, where the plunger telescopic driving mechanism is a spring; (c) is the sectional view, where the plunger telescopic driving mechanism is a controllable pushing method; (d) is the sectional view when the pressing arm direct driving assembly is a spring; (e) is the diagram of another layout of the hinge point.

[0100] Figure 20 Shows the structural schematic diagram of the pressing member being a pressing block in Embodiment 2 of the pressing mechanism in the present invention; among them, (a) is the three-dimensional schematic diagram; (b) is the partial enlarged sectional view.

[0101] Figure 21 Shows the structural schematic diagram of the pressing member being a plunger 1 in Embodiment 2 of the pressing mechanism in the present invention; among them, (a) is the three-dimensional schematic diagram; (b) is the partial sectional view, where the lateral sliding driving mechanism is a spring; (c) is the partial sectional view, where the lateral sliding driving mechanism is a controllable pushing method.

[0102] Figure 22 Shows the structural schematic diagram of Embodiment 3 of the pressing mechanism in the present invention; among them, (a) is the schematic diagram of the vertical driving of the plunger 2 in a controllable manner; (b) is the schematic diagram of the horizontal driving of the plunger 2 in a controllable manner; (c) is the schematic diagram of the vertical driving of the plunger 2 and the clamping spring; (d) is the schematic diagram of the horizontal driving of the plunger 2 and the clamping spring.

[0103] Figure 23 Shows two transformation structures of the profile surface fit between the connecting block and the sliding tool; (a) is the conical surface fit; (b) is the groove fit.

[0104] Figure 24 Shows four schematic diagrams of the manual pressing of the pressing mechanism in the present invention; among them, (a) is the schematic diagram of directly pressing with a screw; (b) is the schematic diagram of manually pressing with a screw and a plunger 1; (c) is the schematic diagram of manually pressing with a screw and a pressing arm; (d) is the schematic diagram of manually pressing with a screw and a pressing block.

[0105] Among them are:

[0106] 10. Slide block; 11. Connecting block;

[0107] 20. Open - and - close middle - knife assembly; 21. Middle - knife seat; 211. Middle - knife guiding projection; 22. Vertical knife; 221. Lifting rod; 222. Lifting driving device; 223. Locking plunger; 23. Side knife; 24. X - direction opening - and - closing mechanism; 241. Fork; 242. X - direction opening - and - closing driving device;

[0108] 30. Blade library assembly;

[0109] 31. Knife - hanging mechanism; 311. Blade seat; 312. Support seat; 313. Z - direction driving device;

[0110] 32. Knife - selecting mechanism; 321. Connecting plate; 322. Moving frame; 323. Positioning pin; 324. Knife - selecting driving device;

[0111] 33. Blade rotating mechanism; 331. Blade rotating shaft; 332. Rotating pin; 333. Blade rotating driving device;

[0112] 34. Clearance uniform - distribution mechanism; 341. Clearance uniform - distribution plate; 342. Clearance adjustment driving device;

[0113] 35. Blade; 351. Rotating hole; 352. Positioning hole; 353. Blade locking hook; 354. Locking position hole; 355. Blade avoidance groove;

[0114] 40. Sliding - knife assembly; 41. Sliding knife; 411. Mold body; 412. Sliding - knife avoidance groove;

[0115] 42. Sliding - knife driving mechanism; 421. Dragging bar; 422. X - direction sliding driving device;

[0116] 50. Fine - tuning mechanism; 51. Adjusting block; 511. Bearing positioning surface; 512. Bearing positioning projection; 52. Adjusting screw; 521. Height - adjusting conical surface; 53. Rotating pin; 54. Stress - release groove; 55. Flexible connection point; 56. Gasket; 57. Guide; 58. Return spring; 59. Stiffness - adjusting hole;

[0117] 60. Pressing mechanism; 61. Pressing arm; 611. Pressing mating surface; 62. Plunger; 63. Spring; 64. Pressing block; 641. Lateral - sliding guiding pin; 642. Lateral - sliding driving mechanism; 65. Plunger 1; 66. Clamping block; 661. Plunger 2; 662. Clamping spring. Detailed implementation manners

[0118] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific preferred implementation manners.

[0119] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "left side", "right side", "upper part", "lower part", etc. is based on the orientation or positional relationship shown in the drawings. These are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. "First", "second", etc. do not represent the importance of the parts, so they cannot be construed as limitations on the present invention. The specific dimensions adopted in this embodiment are only for illustrating the technical solution by way of example and do not limit the protection scope of the present invention.

[0120] As Figure 1 shown, a bending center combined tool device includes an opening and closing middle tool assembly 20, two groups of tool magazine assemblies 30 and two groups of sliding tool assemblies 40.

[0121] The bending center has a slider 10 whose height can be lifted and lowered. A connecting block 11 is arranged along the length direction at the bottom of the slider. The connection between the connecting block and the block is preferably a split connection, and an integrated setting is also regarded as equivalent.

[0122] The opening and closing middle tool assembly is arranged in the middle of the connecting block (it can be fixed or sliding). The two groups of tool magazine assemblies are symmetrically arranged on both sides of the opening and closing middle tool assembly, and the two groups of sliding tool assemblies are symmetrically arranged outside the two groups of tool magazine assemblies. At this time, one group of tool magazine assembly is arranged between the opening and closing middle tool assembly and each group of sliding tool assemblies. As an alternative, the two groups of tool magazine assemblies can slide in the X direction along the slider. Therefore, the tool magazine assembly can also be located between any two sliding tools in the corresponding slider assembly.

[0123] As Figure 1 、 Figure 4 and Figure 5 shown, the opening and closing middle tool assembly includes a middle tool seat 21, a vertical tool 22, a vertical tool lifting mechanism, two side tools 23 and an X-direction opening and closing mechanism 24.

[0124] The middle tool seat is installed on the connecting block. The specific structure of the middle tool seat is as Figure 5 (a) shown. Middle tool guiding protrusions 211 are arranged on both sides of the middle tool seat, specifically as Figure 5 (b) shown, which can improve the guiding rigidity between the side tool and the tool seat.

[0125] The vertical tool and the middle tool seat are in sliding pair cooperation in the vertical Y direction and can perform active sliding in the vertical Y direction along the middle tool seat under the drive of the vertical tool lifting mechanism.

[0126] The above-mentioned vertical tool lifting mechanism preferably includes a lifting rod 221, a lifting drive device 222 and a locking plunger 223.

[0127] The lifting drive device is preferably installed outside the slider and connected to the top of the vertical knife through a lifting rod, thereby driving the vertical knife to slide vertically in the Y direction along the middle knife seat. The lifting drive device is a prior art, such as known drive devices like motors or cylinders.

[0128] The above-mentioned locking plunger is used to preferably lock the lifted lifting rod laterally to prevent the vertical knife from yielding upwards during the mold loading process, which may affect the machining accuracy. This locking plunger is an optional component and can be used when the load capacity of the lifting mechanism is relatively weak.

[0129] Two side knives are symmetrically arranged at the bottom of the middle knife seat on both sides of the vertical knife. Each side knife can perform an opening and closing movement along the length of the connecting block in the X direction under the drive of the X-direction opening and closing mechanism. Further, the top of each side knife is in sliding pair cooperation with the bottom of the middle knife seat in the X direction.

[0130] In this embodiment, the X-direction opening and closing mechanism includes two fork levers and two sets of X-direction opening and closing drive devices for the fork levers. The two fork levers are preferably installed on one side of the two sets of blade magazine components adjacent to the side knives. The X-direction opening and closing drive device can drive the corresponding set of blade magazine components to slide in the X direction, thereby synchronously driving the corresponding fork lever and side knife to slide in the X direction to achieve the opening and closing movement of the two side knives.

[0131] As an alternative, the drive of the side knife is preferably but not limited to being installed in the above-mentioned X-direction opening and closing mechanism. For example, by adding a separate moving shaft, based on the principle of this embodiment, it is considered equivalent and is also within the protection scope of this application.

[0132] The actions of the opening and closing middle knife assembly are divided into two actions: "closing" and "opening". When the vertical knife rises and the two side knives close towards the middle, the "closing" action is achieved; when the two side knives open towards both sides and the middle vertical knife descends, the "opening" action is achieved.

[0133] As Figures 6 to 9 shown, each set of blade magazine components includes a knife hanging mechanism 31, a knife selection mechanism 32, a blade rotation mechanism 33, a gap uniform distribution mechanism 34, and several blades 35. Among them, the gap uniform distribution mechanism is an optional component and can be not provided.

[0134] The knife hanging mechanism includes a blade seat 311, a support seat 312, and a Z-direction drive mechanism.

[0135] The support seat is preferably installed on the X-direction guide rail on the outer side of the slider through a sliding plate and can preferably slide in the X direction along the X-direction guide rail under the drive of the X-direction opening and closing drive device. As an alternative, the support seat can also be movably installed on the connecting block, and the connecting block is fixedly installed or integrally provided with the slider, and the principle is the same.

[0136] The upper part of the blade holder of the slicing knife is slidably connected to the support seat in the Z direction and can reciprocate along the Z direction perpendicular to the slider under the drive of the Z-direction drive mechanism. The Z-direction drive mechanism includes a Z-direction slide rail and a Z-direction drive device 313. The Z-direction slide rail is arranged at the bottom of the support seat, and the Z-direction drive device is preferably arranged on the support seat and can drive the blade holder of the slicing knife to slide in the Z direction along the Z-direction slide rail. The Z-direction drive device is a prior art, such as a known drive device like a motor or a cylinder.

[0137] A plurality of slicing knives 35 are arranged at the lower part of the blade holder of the slicing knife. The slicing knives can be turned up and down according to the needs of the combined knife size to select the required number of slicing knives. The slicing knife turned to the lower position is used for bending, while the slicing knife turned to the upper position is left unused. The final combined knife size is obtained by adding the length of the opening and closing middle knife + the slicing knife turned to the lower position + the length of the sliding knife + the combined knife gap. However, the following principles are followed:

[0138] 1) Use as few slicing knives as possible and as many sliding knives as possible.

[0139] 2) The gap of the combined knife should be as small as possible compared to the width of a single slicing knife.

[0140] 3) When the gap of the combined knife is greater than the width of a single slicing knife, turn down one more slicing knife and add one more slicing knife.

[0141] Each slicing knife includes a rotating hole 351, a positioning hole 352, a blade lock hook 353, a locking position hole 354, and a blade avoidance groove 355. Among them, the locking position hole 354 and the blade avoidance groove 355 are set as required and are optional.

[0142] The above-mentioned rotating hole, positioning hole, and locking position hole are preferably closed round holes as shown in the figure. Based on the technical principle of this case, using an open slot, holes or slots of other shapes that achieve the same function are regarded as equivalent.

[0143] The above-mentioned blade lock hook can cooperate with the connecting block to achieve hanging the knife as shown in Figure 10 (a); the blade avoidance groove is as shown in Figure 5 (e). When there is a middle knife guide protrusion on the middle knife seat, it can avoid the middle knife guide protrusion.

[0144] The knife selection mechanism includes a connecting plate 321, a moving frame 322, a positioning pin 323, and a knife selection drive device 324.

[0145] The above-mentioned connecting plate is fixedly connected to or integrally provided with the knife seat. The knife selection drive device is preferably but not limited to a gear-rack transmission mechanism and drives the moving frame to move left and right in the X direction.

[0146] The positioning pin is arranged on the moving frame and can move synchronously with the moving frame in the X direction. During the movement in the X direction, the positioning pin is inserted into the positioning holes 352 of different blades to position the blades with the tip upwards, preventing them from freely flipping downwards under their own weight.

[0147] The blade rotating mechanism includes a blade rotating shaft 331, a rotating pin 332, and a blade rotation driving device 333.

[0148] The blade rotating shaft is horizontally arranged, with one end connected to the bottom of the moving frame, enabling the synchronous lateral movement of the moving frame and the rotating shaft, and the other end is movably connected to the bottom of the blade seat. All the above-mentioned blades are sleeved on the middle part of the blade rotating shaft.

[0149] The rotating pin is arranged parallel to the blade rotating shaft and is connected to the free end of the blade rotating shaft, rotating synchronously with the blade rotating shaft. The rotating pin can cooperate with the rotating holes of the blades, so as to drive the blades to rotate and flip under the drive of the blade rotation driving device. The blade rotation driving device is preferably but not limited to synchronous belt drive.

[0150] During the working process, the tool selection driving device 324 drives the movement of the moving frame, and the positioning pin arranged on the moving frame moves simultaneously. At the same time, the blade rotating shaft and the rotating pin also move synchronously with the moving frame.

[0151] When selecting a tool, the blade rotating shaft and the rotating pin rotate to turn all the blades with the tip downwards upwards and align all the blades with the tip upwards. At this time, the moving frame moves in the X direction, thus driving the positioning pin and the rotating pin (indirectly driven by the blade rotating shaft) to perform X lateral movement. The positioning pin is inserted into the positioning hole on the blade with the tip upwards, and the rotating pin is inserted into the rotating hole of the blade with the tip upwards. With the lateral movement of the moving frame, the tool selection operation is realized. After the tool selection is completed, the blade rotation driving device preferably drives the selected blade to rotate through synchronous belt drive to make the tip downwards, completing the tool selection operation of the blade.

[0152] After the tool selection is completed, the blade seat moves in the Z direction away from the tip, completing the Figure 10 tool hanging action shown in (a); before the next tool selection, the blade seat moves in the Z direction towards the tip, that is, Figure 10 moves towards the right side of the middle view, and the blade is unlocked from the connecting block, as shown in Figure 10 (b). At this time, the tool is removed, and the blade can rotate for tool selection. The rotating state of the blade after unlocking is shown in Figure 10 (c).

[0153] The clearance uniform distribution mechanism includes a clearance uniform distribution plate 341 and a clearance adjustment driving device 342.

[0154] The gap uniform distribution plate is slidably set on the knife hanging mechanism, preferably slidably set on the support seat inside the blade knife seat, but it can also be set on the blade knife seat, etc., which are all considered equivalent.

[0155] One side of the two gap-distributing plates facing the opening and closing middle knife assembly is respectively connected to or integrally provided with a shift fork in the above-mentioned X-direction opening and closing mechanism, and the bottom of each shift fork is connected to the corresponding side knife.

[0156] The gap adjustment driving device can drive the gap uniform distribution plate to slide along the X direction, and then synchronously drive the shift fork and the side knife to slide along the X direction, so as to adjust the gap between the blade knife and the side knife.

[0157] As an alternative, the shift fork can be directly connected to the support seat or knife seat of the knife hanging mechanism, or other structures except the gap uniform distribution plate, or can be connected to the slide plate or other components moving in the X direction. In this case, the gap between the blade knife and the side knife cannot be adjusted, but the side knife can still be driven to open and close.

[0158] The arrangement of the locking hole 354 can lock the blade position with the blade tip facing upward, thereby preventing the blade from falling off and losing control when the blade rotating shaft subsequently slides to avoid the blade.

[0159] like Figure 1 As shown, each set of slide blade assemblies includes a plurality of slide blades 41 .

[0160] The top of each slide blade is slidably connected to the connecting block, and can slide along the length direction of the connecting block under the drive of the corresponding slide blade driving mechanism 42.

[0161] like Figure 5 As shown in (d), each slide knife is provided with a slide knife avoidance groove 412 that matches with the middle knife guide protrusion 211, and can avoid the middle knife guide protrusion provided on the middle knife seat. The slide knife avoidance groove is an optional setting, which is provided when the middle knife seat is provided with the middle knife guide protrusion. In addition, it is only provided for the slide knife close to the middle knife side, and other slide knives may not be provided.

[0162] In this embodiment, the connection block and the profile of each slide top are preferably matched with a dovetail structure. Based on the technical principle of this case, it is preferred but not limited to Figure 23 As shown, by changing the shape of the mating surface, it is considered equivalent and within the scope of protection of this application.

[0163] The sliding knife driving mechanism is a prior art, and preferably includes a drag bar 421 and an X-direction sliding driving device 422 .

[0164] The drag bar is adapted to the connecting block and can slide horizontally in the X direction. The X-direction sliding drive device, preferably an X-direction sliding motor, drives the drag bar to move through a synchronous belt and a lead screw. Preferably, a plurality of grooves are provided on the drag bar to be adapted to the drag plungers at the top of the sliding knives. The drag plungers preferably use pneumatic power. After the drag plungers are lifted, they are stuck in the corresponding grooves of the drag bar. When the drag bar moves, it drives the selected N sliding knives to move. Further, preferably, the sliding knife closest to the slicing knife is fixedly connected to the drag bar.

[0165] As an alternative, the above X-direction sliding drive device can also use common drives such as gear-rack drive and be regarded as equivalent. As an alternative, based on the technical principle and the scope of rights protection of this case, the X-direction sliding drive device is manually adjusted and uses a completely manual die-changing and knife-assembling method, which is regarded as equivalent. For example, when manually changing the knife, only the sliding knife is used, and the opening and closing middle knife assembly and the tool magazine assembly are removed, which is also within the scope of this application.

[0166] As Figure 2 and Figure 3 shown, each sliding knife includes a die body 411, a fine-tuning mechanism 50, and a pressing mechanism 60.

[0167] The fine-tuning mechanism is arranged on one side of the die body close to the tool tip and is adapted to the front end of the connecting block; the fine-tuning mechanism can adjust the position of the tool tip in the die body and the connecting block in the horizontal direction.

[0168] For the fine-tuning mechanism, the present application provides the following 5 preferred embodiments.

[0169] Embodiment 1

[0170] As Figure 11 shown, the fine-tuning mechanism preferably includes an adjustment block 51 and an adjustment element. The adjustment block is separately provided from the die body. A bearing positioning surface 511 that can cooperate with the connecting block is provided on the top of the adjustment block. The middle or upper-middle part (preferably the middle part) of the adjustment block below the bearing positioning surface is preferably hinged to the die body through a rotating pin 53. In Figure 11 (a) and (b), the adjustment block and the rotating pin are preferably hinged in the middle. However, as Figure 11 (c) shown, when the hinge point of the adjustment block and the rotating pin is at the bottom, the principle is the same and obvious, and is regarded as equivalent.

[0171] The above adjustment element adjusts the adjustment block, can form a lever structure with the movable connection point (hinge point) as the rotation fulcrum, adjusts the position of the bearing positioning surface, and further realizes the adjustment of the position of the tool tip in the die body in the horizontal direction.

[0172] In this embodiment, the adjustment element is preferably an adjustment screw 52. Based on the technical principle of this case, using mechanisms such as a conical surface, a pin, a cam, an eccentric wheel, or a grooved wheel to realize the adjustment of the adjustment block is regarded as equivalent. InFigure 11 In this case, the adjusting screw penetrates through the mold body. The advantage is that the adjusting screw is located on the side that is easy for the operator to adjust, facilitating adjustment.

[0173] In this embodiment, the adjusting screw is connected to the mold body by a thread pair. The adjusting screw "tops" at the lower part of the adjusting block. By rotating the adjusting screw, the angle of the adjusting block relative to the mold body is adjusted, thereby indirectly adjusting the position of the cutting edge in the horizontal direction in the mold body. The positions of the above-mentioned adjusting screws and the adjustment of the connection methods are considered equivalent based on the same principle in this case.

[0174] For this Embodiment 1, the processing difficulty and processing cost are applicable, the adjustment is convenient, and the adjustment amount is large. However, the bearing capacity is medium, and it is suitable for high-precision application occasions.

[0175] Embodiment 2

[0176] As Figure 12 shown, the fine adjustment mechanism preferably includes an adjusting block 51 and an adjusting screw 52. The adjusting block is integrated with the mold body. A bearing positioning surface 511 that can cooperate with the connecting block is provided at the top of the adjusting block; there is an integrally provided flexible connection point between the middle part or the upper middle part of the adjusting block below the bearing positioning surface and the mold body. There is a stress relief groove 54 between the adjusting block below the flexible connection point and the mold body, and the bottom of the stress relief groove is open.

[0177] Referring to Figure 11 (c) in Embodiment 1, the principle is the same when the flexible connection point is set at the bottommost, and it is considered equivalent.

[0178] The above-mentioned adjusting element adjusts the adjusting block, which can form a lever structure with the movable connection point (flexible connection point) as the rotation fulcrum to adjust the position of the bearing positioning surface, thereby realizing the adjustment of the position of the cutting edge in the horizontal direction in the mold body.

[0179] In this embodiment, the adjusting element is also preferably the adjusting screw 52. The adjustment method is the same as that in Embodiment 1 and will not be elaborated here.

[0180] When the adjusting screw is adjusted, since the stress relief groove weakens the stiffness at the flexible connection point, the adjustment can be realized. The function of the adjusting screw is to achieve the actions of "pushing" and "pulling". The adjusting screw is preferably but not limited to Figure 12 the number and position shown. Using other numbers of screws and arrangement methods is considered equivalent based on the principle of the present invention.

[0181] For this embodiment, the processing and manufacturing difficulty and cost are the lowest, but the adjustment amount is not large, but the bearing capacity is strong, especially suitable for heavy-load application occasions.

[0182] Embodiment 3

[0183] AsFigure 14 and Figure 15 As shown, the fine adjustment mechanism includes an adjustment screw 52 .

[0184] A bearing and positioning protrusion 512 is provided on the top of the mold body.

[0185] The adjusting screw cooperates with the thread pair of the bearing positioning protrusion, and the end of the adjusting screw passes through the bearing positioning protrusion and directly or indirectly cooperates with the connecting block; by rotating the adjusting screw, the horizontal position accuracy of the tool tip in the mold body can be adjusted.

[0186] exist Figure 14 In the case of a shim not being added to the adjusting screw, Figure 15 In the above, adding a gasket to the adjustment screw is considered equivalent. This setting method has low manufacturing cost and strong bearing capacity; the disadvantage is that the adjustment convenience is slightly poor.

[0187] Example 4

[0188] like Figure 16 As shown, the adjustment block and the mold body are separately arranged for sliding. The adjustment block can cooperate with the sliding pair of the mold body under the drive of the adjustment element. In this embodiment, horizontal sliding is preferred to achieve adjustment of the position of the bearing positioning surface, thereby achieving adjustment of the horizontal position of the tool tip in the mold body.

[0189] At this time, the adjustment block and the mold body achieve lateral sliding through the transversely arranged guide member 57; at this time, the adjustment screw is threadedly connected to the adjustment block, and the horizontal position of the tool tip in the mold body is indirectly adjusted by rotating the adjustment screw.

[0190] The guide member is in a circular or square shape, and other shapes such as elliptical are considered equivalent based on the principle of this case. The guide member is fixedly connected or integrated with one of the mold body or the adjustment block, and is movably connected with the other part.

[0191] Through Figure 16 The adjustment screws are adjusted by "pushing" and "pulling". The number of screws and the arrangement are preferred but not limited to the ones shown in the figure, and other numbers of screws and arrangements are considered equivalent based on the principle of this case.

[0192] exist Figure 16 In (a) to (c), there are two types of adjustment screws, one for "pull" and the other for "pull"; alternatively, only one type of adjustment screw may be provided, that is, only a threaded pair is connected, as shown in the following example. Figure 16 (d) as shown.

[0193] This embodiment has low manufacturing difficulty, low cost, strong bearing capacity, and is suitable for heavy-load application scenarios. In addition, this embodiment requires adjusting the "pushing" and "pulling" actions of the screws for coordinated operation, which is slightly inconvenient to adjust.

[0194] Example 5

[0195] As Figure 17 shown, the adjusting block is slidably and separately arranged from the mold body. The adjusting block can be in sliding pair cooperation with the mold body under the drive of the adjusting element. In this embodiment, vertical sliding is preferably adopted to adjust the position of the bearing positioning surface, and further to adjust the position of the cutting edge in the mold body in the horizontal direction.

[0196] At this time, the adjusting screw is threadedly connected to the mold body, and a height adjusting conical surface 521 is provided at the end of the adjusting screw; by rotating the adjusting screw, the height of the adjusting block is raised or lowered, and further the indirect adjustment of the position of the cutting edge in the mold body in the horizontal direction is realized.

[0197] Furthermore, a height sliding groove and a return spring 58 are arranged in the mold body; wherein, the height sliding groove can guide the height sliding of the adjusting block, the adjusting block is jacked up under the action of the return spring, the height adjusting conical surface of the adjusting screw is adapted to the inclined surface under the adjusting block, and the up-and-down adjustment of the adjusting block is realized by the "screwing in" and "screwing out" of the adjusting screw, so as to achieve the purpose of mold precision adjustment.

[0198] In Figure 17 (a) to (d), the adjusting screws are arranged horizontally. As an alternative, the adjusting screws can also be arranged in a vertical thread pair as shown in Figure 17 (e), which is regarded as equivalent.

[0199] The manufacturing cost and processing difficulty of this embodiment are applicable. It has strong bearing capacity, is convenient to adjust, and has high adjustment precision, and is suitable for high-precision and heavy-load use scenarios.

[0200] Since the fine adjustment mechanism in each sliding tool is a movable connection mechanism, the stiffness characteristics of its structure are different from those of an integral mold. In an automatic tool assembling device, the mold structures are also different, and it is necessary to match the stiffness of the mold body. Otherwise, under the same load, different mold stiffness characteristics will inevitably cause different mold deformation amounts, and finally lead to deviation of the bending processing precision. As Figure 18 shown, it is necessary to analyze the deformation during the bearing process of the mold body, and based on this, optimize the material distribution and structural details of the structure, and finally ensure the consistency of the stiffness of the whole set of molds.

[0201] The pressing mechanism is arranged on the side opposite to the direction of the fine adjustment mechanism, and the pressing mechanism is used to press the mold body against the connecting block without clearance.

[0202] As Figures 19 to 21 shown, the pressing mechanism includes a pressing member and a pressing power element.

[0203] The pressing member has a pressing mating surface 611 that mates with the connecting block.

[0204] The pressing power element drives the pressing member to move so that the pressing mating surface presses tightly against the connecting block without clearance; among them, the driving direction of the pressing power element is opposite to, the same as, or perpendicular to the clamping direction of the pressing member, etc. Based on the principle of this case, setting an angle is regarded as equivalent and is also within the scope of the right protection.

[0205] For the pressing mechanism, the present application provides the following 3 preferred embodiments.

[0206] Embodiment 1

[0207] As Figure 19 shown, the pressing member is a pressing arm, the pressing mating surface is arranged at the top of the pressing arm, and the pressing arm is hinged to the mold body.

[0208] The pressing power element drives the pressing arm, and the driving direction is opposite to the clamping direction of the pressing arm.

[0209] The pressing power element is a direct driving component or an indirect driving component of the pressing arm.

[0210] The above-mentioned direct driving component of the pressing arm preferably includes a spring 63, air pressure, hydraulic pressure, electromagnetic or manual and other ways to push.

[0211] The above-mentioned indirect driving component of the pressing arm preferably includes a plunger 62 and a plunger telescopic driving mechanism; the plunger telescopic driving mechanism preferably includes a spring 63, air pressure, hydraulic pressure, electromagnetic or manual and other ways to push.

[0212] As Figure 19 (b) shown, when the plunger is pushed by a spring, the structure is simple and the cost is low. However, the pressing force always exists, and the resistance is large during the sliding dragging movement.

[0213] As Figure 19 (c) shown, when the plunger is pushed by controllable ways such as air pressure, hydraulic pressure, and electromagnetic. The cost is high and the structure is complex, but the clamping force can be not generated during dragging, the sliding dragging force is small, and the speed is fast.

[0214] As Figure 19 (d) shows a schematic diagram when the direct driving component of the pressing arm directly uses a spring.

[0215] In addition, in FIGS. 19(a) to (d), the hinge point is located in the middle or upper middle part of the pressing block. As an alternative, the hinge point can also be located in the lower part of the pressing block, specifically as Figure 19 (e) shown.

[0216] In this embodiment, the clamping force is large, safe and reliable. It is suitable for application scenarios with high height, high precision, heavy load and frequent operation.

[0217] Example 2

[0218] The pressing member is Figure 20 the pressing block shown or Figure 21 the first plunger shown.

[0219] A sliding pair is formed between the top of the mold body on the side opposite to the fine-tuning mechanism and the pressing member, and a pressing mating surface is provided inside the pressing member.

[0220] The driving direction of the pressing power element on the pressing member is the same as the clamping direction of the pressing member.

[0221] A. The pressing member is a pressing block

[0222] The pressing block is preferably arranged in the transverse sliding groove of the mold body, and a pressing mating surface for cooperating with the connecting block is provided inside.

[0223] The pressing power element includes a transverse sliding driving mechanism 642, which can drive the transverse sliding pressing member to slide transversely, so that the pressing mating surface of the pressing block can press on the connecting block.

[0224] Furthermore, the pressing mechanism preferably but not limited to adopt a transverse sliding guide pin 641, which can guide the transverse sliding of the pressing block.

[0225] In this embodiment, the transverse sliding driving mechanism preferably but not limited to adopt a spring (preferably a disc spring), and the pressing block is pressed by the spring. The structure is simple and the cost is low. The disadvantage is that the pressing force always exists. The dragging load is large, and problems such as wear and heat generation may occur during long-term use. Therefore, it is suitable for scenarios with not very high precision requirements and infrequent operations.

[0226] B. The pressing member is the first plunger

[0227] The first plunger is preferably arranged in the transverse sliding groove, and a pressing mating surface for cooperating with the connecting block is provided inside.

[0228] The pressing power element includes a transverse sliding driving mechanism 642, which can drive the first plunger to slide transversely, so that the pressing mating surface of the first plunger presses on the connecting block.

[0229] The transverse sliding driving mechanism can be Figure 21 the spring shown in (b), or can be Figure 21 the controllable pushing methods such as air pressure, hydraulic pressure, and electromagnetic shown in (c).

[0230] In this embodiment, the structure is simple and the manufacturing difficulty is small. The disadvantage is that the clamping force is slightly small. It is suitable for scenarios with small loads.

[0231] Example 3

[0232] As shown Figure 22 in the figure, the pressing member is a clamping block 66 arranged horizontally.

[0233] One side of the clamping block is provided with a pressing mating surface, and the other side of the clamping block is provided with a driving inclined surface.

[0234] The pressing power element is in sliding pair cooperation with the driving inclined surface, and the driving direction of the pressing power element on the pressing member is perpendicular to the clamping direction of the pressing member.

[0235] The pressing power element is preferably a plunger two 661, which can adopt Figure 22 the controllable pushing methods such as pneumatic or electric shown in (a) and (b) in the figure, and can also adopt Figure 22 the direct driving method of the clamping spring 662 shown in (c) and (d) in the figure.

[0236] When the pressing power element is vertically arranged, it is preferably but not limited to the pressing power element being "vertically arranged in a single group from top to bottom"; when the pressing power element is horizontally arranged, it is preferably but not limited to adopting the symmetrical arrangement of 2 groups.

[0237] As an alternative, the pressing mechanism is preferably but not limited to Figure 24 the locking mechanisms such as manually rotating screws, pressing link mechanisms, cams shown in the figure, to achieve manual pressing, which is also regarded as equivalent. In Figure 24 in (a) of the figure, the die body is directly pressed against the connecting block without clearance by screws; Figure 24 in (b) of the figure, the screw is threadedly connected to the die body, and the locking is achieved by the "pushing" action on the plunger one. Specifically: manually rotate the screw to push the plunger one, so that the plunger one presses against the connecting block without clearance; Figure 24 in (c) of the figure, the pressing arm is hinged to the die body to form a lever structure, and by manually rotating the screw, the top of the pressing arm presses against the connecting block; Figure 24 in (d) of the figure, the screw is threadedly connected to the die body, and the locking is achieved by the "pushing" action on the clamping block. Specifically: manually rotate the screw to push the clamping block, so that the clamping block presses against the connecting block without clearance.

[0238] Based on the technical principle of this case, adding elastic elements such as springs, disc springs, rubbers, polyurethanes, etc. to the pressing mechanism is regarded as equivalent.

[0239] Through the present invention, the following preferred effects can be achieved.

[0240] 1. It can realize the industrialization of the device for automatic tool assembly, solve the pain points of the industry, and play a decisive role in promoting the transformation of the metal sheet manufacturing industry from traditional single-machine manufacturing to intelligent manufacturing.

[0241] 2. Since the precision is adjustable, the precision standard of the industry can be greatly improved. At present, the precision of the industry is basically ±0.75 degrees, and the straightness is poor. Based on the present invention, the processing precision can at least reach ±0.3 degrees. This processing precision will far exceed the existing industry standards and even far exceed the processing precision level of the highest foreign level. Higher processing precision means:

[0242] a) It can be used in various industries and scenarios with high-precision requirements, such as high-end and high-value-added industries like communication, electrical cabinets, and electronics.

[0243] b) For workpieces with high-precision bending, the next welding process can achieve automated welding, which is helpful for the intelligent improvement of the next process.

[0244] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and these equivalent transformations all fall within the protection scope of the present invention.

Claims

1. A bending center tool splicing device, characterized in that: It includes a sliding tool component; The bending center has a slider whose height can be raised and lowered, and a connecting block is arranged along the length direction at the bottom of the slider; The sliding tool component includes a plurality of sliding tools, and the top of each sliding tool is movably connected to the connecting block; Each sliding tool includes a tool body, a fine-tuning mechanism and a pressing mechanism; The fine-tuning mechanism is arranged on one side of the tool body close to the tool tip and is adapted to the front end of the connecting block; the fine-tuning mechanism can adjust the position of the tool tip in the horizontal direction in the tool body; The pressing mechanism is arranged on the side opposite to the direction of the fine-tuning mechanism, and the pressing mechanism is used to press the tool body against the connecting block without clearance.

2. The bending center tool splicing device according to claim 1, wherein: The fine-tuning mechanism includes an adjusting block and an adjusting element; the adjusting block is integrally or separately arranged with the tool body, and a bearing positioning surface capable of cooperating with the connecting block is arranged at the top of the adjusting block; The adjusting element can adjust the position of the tool tip in the horizontal direction in the tool body.

3. The bending center tool splicing device according to claim 2, characterized in that: The adjusting block located below the bearing positioning surface is integrally or separately movably connected to the tool body to form a movable connection point; The adjusting element adjusts the adjusting block, and can form a lever structure with the movable connection point as the rotation fulcrum, so as to adjust the position of the bearing positioning surface, and further realize the adjustment of the position of the tool tip in the horizontal direction in the tool body.

4. The bending center tool splicing device according to claim 3, characterized in that: The adjusting block is separately arranged from the tool body, and the middle part or the upper middle part of the adjusting block located below the bearing positioning surface is hinged to the tool body, and the hinge point is the rotation fulcrum.

5. The bending center tool splicing device according to claim 3, characterized in that: The adjusting block is integrally arranged with the tool body, and the middle part or the upper middle part of the adjusting block located below the bearing positioning surface has an integrally arranged flexible connection point with the tool body, and there is a stress relief groove between the adjusting block below the flexible connection point and the tool body; wherein, the flexible connection point is the rotation fulcrum.

6. The bending center tool splicing device according to claim 2, wherein: The adjusting block is slidably and separately arranged with the tool body, and the adjusting block can be driven by the adjusting element to be in sliding pair cooperation with the tool body to realize the adjustment of the position of the bearing positioning surface, and further realize the adjustment of the position of the tool tip in the horizontal direction in the tool body.

7. The bending center tool splicing device according to claim 6, characterized in that: The adjusting block and the tool body are in transverse sliding pair cooperation; during the transverse sliding process, guiding is carried out through a laterally arranged guiding member.

8. The knife - assembling device for bending center according to claim 6, wherein: The adjusting block and the tool body are in vertical sliding pair cooperation; the adjusting element drives the vertical sliding of the adjusting block through conical surface cooperation.

9. The bending center tool splicing device according to any one of claims 2 to 8, characterized in that: The adjusting element is an adjusting screw, and the adjusting screw is in thread pair cooperation with the adjusting block or the tool body. By rotating the adjusting screw, the adjustment of the position accuracy of the tool tip in the horizontal direction in the tool body is realized.

10. The bending center knife - assembling device according to claim 1, wherein: The fine-tuning mechanism includes an adjusting screw; A bearing positioning protrusion is arranged at the top of the tool body; The adjusting screw is in thread pair cooperation with the bearing positioning protrusion, and the end of the adjusting screw passes through the bearing positioning protrusion and is directly or indirectly cooperated with the connecting block; by rotating the adjusting screw, the adjustment of the position accuracy of the tool tip in the horizontal direction in the tool body can be realized.

11. The bending center tool splicing device according to claim 1, wherein: The pressing mechanism includes a pressing member and a pressing power element; The pressing member has a pressing cooperation surface that cooperates with the connecting block; The pressing power element drives the pressing member to move, so that the pressing cooperation surface presses against the connecting block without clearance; wherein, the driving direction of the pressing power element is opposite to, the same as or perpendicular to the clamping direction of the pressing member.

12. The bending center knife - assembling device according to claim 11, wherein: The pressing member is a pressing arm, the pressing cooperation surface is arranged at the top of the pressing arm, and the pressing arm is hinged to the tool body; The pressing power element drives the pressing arm, and the driving direction is opposite to the clamping direction of the pressing arm.

13. The bending center tool splicing device according to claim 12, characterized in that: The pressing power element is a direct driving assembly or an indirect driving assembly of the pressing arm; among them, the direct driving assembly of the pressing arm includes spring, pneumatic, electric or manual; the indirect driving assembly of the pressing arm includes a plunger and a plunger telescopic driving mechanism; the plunger telescopic driving mechanism includes spring, pneumatic, electric or manual.

14. The bending center tool splicing device according to claim 11, wherein: The pressing member is a pressing block or a plunger 1; the pressing mating surface is arranged on the inner side of the pressing member; The driving direction of the pressing power element on the pressing member is the same as the clamping direction of the pressing member.

15. The bending center tool splicing device according to claim 11, characterized in that: The pressing member is a horizontally arranged clamping block; the pressing mating surface is arranged on one side of the clamping block, and the driving inclined surface is arranged on the other side of the clamping block; The pressing power element is in sliding pair cooperation with the driving inclined surface, and the driving direction of the pressing power element on the pressing member is perpendicular to the clamping direction of the pressing member.

16. A bending center tool splicing device, characterized in that: It includes a knife-opening and closing middle knife assembly arranged in the middle of the connecting block; The knife-opening and closing middle knife assembly includes a middle knife seat, a vertical knife, a vertical knife lifting mechanism, two side knives and an X-direction knife-opening and closing mechanism; The middle knife seat is installed on the connecting block; The vertical knife is in sliding pair cooperation with the middle knife seat in the vertical Y direction, and can actively slide in the vertical Y direction along the middle knife seat under the drive of the vertical knife lifting mechanism; The two side knives are symmetrically arranged on the bottom of the middle knife seat on both sides of the vertical knife, and each side knife can perform an opening and closing movement along the length X direction of the connecting block under the drive of the X-direction knife-opening and closing mechanism.

17. The bending center tool splicing device according to claim 16, wherein: Middle knife guiding protrusions are arranged on both sides of the middle knife seat.

18. The bending center tool splicing device according to claim 16, wherein: The vertical knife lifting mechanism includes a lifting rod, a lifting driving device and a locking plunger; The lifting driving device is connected with the vertical knife through the lifting rod, and then drives the vertical knife to slide in the vertical Y direction along the middle knife seat; The locking plunger is used to lock the lifting rod.

19. The bending center tool splicing device according to claim 16 or 17 or 18, characterized in that: It also includes two groups of blade library components; One group of the blade library components is arranged on each side of the knife-opening and closing middle knife assembly; Each group of blade library components includes a knife hanging mechanism and several blades; The knife hanging mechanism includes a blade seat, a support seat and a Z-direction driving mechanism; The support seat is arranged on the outer side of the slider; The upper part of the blade seat is slidably connected with the support seat in the Z direction, and all the blades are movably installed on the lower part of the blade seat; each blade can rotate; The Z-direction driving mechanism can drive the blade seat to reciprocate in the Z direction perpendicular to the slider, so as to realize the knife removing or knife hanging action of the blade.

20. The bending center knife splicing device according to claim 19, characterized in that: Each group of blade library components also includes a gap uniform distribution mechanism; The gap uniform distribution mechanism includes a gap uniform distribution plate and a gap adjustment driving device; The gap uniform distribution plate is slidably arranged on the knife hanging mechanism; The X-direction knife-opening and closing mechanism includes two fork levers and two groups of fork lever X-direction knife-opening and closing driving devices; The two fork levers are arranged on the two gap uniform distribution plates or the two knife hanging mechanisms except the gap uniform distribution plates; The bottom of each fork lever is connected with the corresponding side knife; The X-direction knife-opening and closing driving device can drive the corresponding group of blade library components to slide in the X direction, and then synchronously drive the corresponding fork lever and side knife to slide in the X direction, so as to realize the opening and closing movement of the two side knives; The gap adjustment driving device can drive the gap uniform distribution plate to slide in the X direction.

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