A freely combinable flexible bending center

Abstract

The invention discloses a flexible bending center that can be freely combined, comprising a workbench, a complementary presser foot assembly arranged in the middle of the workbench, and a movable presser foot assembly arranged at the bottom of the workbench, wherein the movable presser foot assembly comprises a slide rail, a left movable presser foot assembly, and a right movable presser foot assembly. The left movable presser foot assembly and the right movable presser foot assembly of the invention can be moved laterally on the slide rail respectively to adjust the gap between the two, the complementary presser foot assembly can be moved three-dimensionally on the workbench to move the complementary presser foot to the gap between the left movable presser foot assembly and the right movable presser foot assembly to realize free adjustment and combination, and the user can also adjust the number and arrangement gap of the left presser foot and the right presser foot respectively according to actual needs, thereby realizing a combination presser foot of any length, the combination presser foot can press and fix the sheet metal workpiece, and the bending knife die of the bending machine can perform bending operation on the sheet metal workpiece, thereby realizing flexible bending processing of sheet metal workpieces of different sizes and angles.

Description

Technical Field

[0001] The invention relates to the field of flexible bending centers, and in particular to a freely combinable flexible bending center. Background Art

[0002] The flexible bending machine can perform automatic flexible bending processing on sheet metal materials. The sheet metal can be bent on multiple sides after one positioning, which effectively shortens the bending processing time of the sheet metal and greatly improves the forming accuracy and processing efficiency of the sheet metal.

[0003] In the prior art, the presser feet of flexible bending machines are fixed and cannot be moved. When sheet metals of different sizes or angles need to be bent, sheet metals of any shape and size cannot be processed due to the limitations of the presser foot arrangement and combination. At this time, the user needs to manually change the spacing and length of the presser feet to process sheet metals of different shapes and sizes. This not only increases the labor cost, but also reduces the production efficiency of sheet metal forming, which is not conducive to the development of the enterprise.

[0004] Therefore, the prior art has defects and needs to be improved. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a flexible bending center which is convenient to assemble, has high processing efficiency, high automation and can be freely assembled.

[0006] The technical solution of the present invention is as follows: a freely combinable flexible bending center, comprising a workbench, a complementary presser foot assembly arranged in the middle of the workbench, and a movable presser foot assembly arranged at the bottom of the workbench, wherein the complementary presser foot assembly is located above the movable presser foot assembly;

[0007] The complementary presser foot assembly comprises a transverse moving plate, a plurality of lifting and moving mechanisms, a plurality of longitudinal moving mechanisms, a plurality of presser foot connecting seats and a plurality of complementary presser feet. The front of the workbench is laterally provided with two parallel first guide rails, and the two sides of the back of the transverse moving plate are respectively provided with first sliders, and the transverse moving plate is connected to the first guide rails through the first sliders.

[0008] The lifting and moving mechanism comprises a lifting and moving seat and a lifting and driving mechanism, a plurality of second guide rails parallel to each other are arranged on the front side of the transverse moving plate in the vertical direction, second sliders are arranged on both sides of the back side of the lifting and moving seat, the lifting and moving seat is connected to the two second guide rails through the second sliders, the lifting and driving mechanism is arranged on the top of the transverse moving plate, and the movable end of the lifting and driving mechanism is connected to the lifting and moving seat;

[0009] The longitudinal moving mechanism is arranged on the lifting and moving seat, the top of the presser foot connecting seat is connected to the longitudinal moving mechanism, and the bottom of the presser foot connecting seat is connected to the complementary presser foot;

[0010] The movable presser foot assembly comprises a slide rail, a left movable presser foot assembly and a right movable presser foot assembly. The slide rail is arranged at the bottom of the workbench, the left movable presser foot assembly is arranged at the left side of the slide rail, and the right movable presser foot assembly is arranged at the right side of the slide rail.

[0011] By adopting the above-mentioned technical scheme, in the freely combinable flexible bending center, the left movable presser foot assembly includes a first motor, a first reducer, a first screw mounting seat, a first screw, a first screw nut seat, a first pull rod, a plurality of first guide blocks and a plurality of left presser feet, the first screw mounting seat is arranged at the bottom of the workbench on the left side of the slide rail, the first screw is sleeved on the first screw mounting seat, the output shaft of the first motor is connected to the first reducer, the output end of the first reducer is connected to the first screw, the first screw nut seat is sleeved on the first screw, one end of the first pull rod is connected to the right side of the first screw nut seat, the other end of the first pull rod is through-connected with a plurality of left presser feet, and the top of each left presser foot is connected to the slide rail through the first guide block.

[0012] By adopting the above-mentioned technical schemes, in the freely combinable flexible bending center, the right movable presser foot assembly includes a second motor, a second reducer, a second screw mounting seat, a second screw, a second screw nut seat, a second pull rod, a plurality of second guide blocks and a plurality of right presser feet, the second screw mounting seat is arranged at the bottom of the workbench on the right side of the slide rail, the second screw is sleeved on the second screw mounting seat, the output shaft of the second motor is connected to the second reducer, the output end of the second reducer is connected to the second screw, the second screw nut seat is sleeved on the second screw, one end of the second pull rod is connected to the left side of the second screw nut seat, the other end of the second pull rod is through-connected to a plurality of right presser feet, and the top of each right presser foot is connected to the slide rail through the second guide block.

[0013] By adopting the above-mentioned technical solutions, in the freely combinable flexible bending center, the lifting drive mechanism is one of a motor drive mechanism, a cylinder drive mechanism or a hydraulic drive mechanism.

[0014] By adopting the above-mentioned technical solutions, in the freely combinable flexible bending center, the lifting drive mechanism is a cylinder drive mechanism, and the cylinder drive mechanism includes a cylinder seat and a guide rod type cylinder. The cylinder seat is arranged on the top of the transverse moving plate, and the guide rod type cylinder is arranged on the cylinder seat, and the piston end of the guide rod type cylinder is connected to the lifting moving seat.

[0015] By adopting the above-mentioned technical schemes, in the freely combinable flexible bending center, the longitudinal moving mechanism includes a fixed plate, two third guide rails, two third sliders and a slide cylinder, the third guide rails are respectively arranged on both sides of the bottom of the lifting and moving seat, third sliders are arranged on both sides of the top of the fixed plate, the fixed plate is connected to the third guide rails through the third sliders, the slide cylinder is arranged on the top of the lifting and moving seat, a through groove is arranged in the middle of the lifting and moving seat, the slide of the slide cylinder is connected to the top of the fixed plate through the through groove, and the bottom of the fixed plate is connected to the presser foot connecting seat.

[0016] By adopting the above-mentioned technical solutions, in the freely combinable flexible bending center, the complementary presser foot assembly also includes a transverse driving mechanism, and the transverse driving mechanism is connected to the transverse moving plate.

[0017] By adopting the above-mentioned technical solutions, in the freely combinable flexible bending center, the complementary presser foot, left presser foot and right presser foot have the same structure, and are all provided with smooth end surfaces at the bottom. The middle parts of the complementary presser foot, left presser foot and right presser foot are respectively provided with hollow waist grooves for easy hand-held movement.

[0018] By adopting the above-mentioned technical solutions, in the freely combinable flexible bending center, the slide rail is formed by splicing segmented short rails.

[0019] By adopting the above-mentioned technical solutions, the freely combinable flexible bending center also includes a base, a stand and a linear guide module. The front of the stand is slidably connected to the back of the workbench through the linear guide module, the bottom of the stand is fixedly connected to the base, and a plurality of lower presser feet are provided on the top side of the base, and the lower presser feet are arranged below the movable presser foot assembly.

[0020] By adopting the above-mentioned technical schemes, the present invention can place the sheet metal workpiece to be processed on the lower presser foot of the base, and the left movable presser foot assembly and the right movable presser foot assembly can respectively realize automatic horizontal movement at the bottom of the workbench to adjust the gap between the left movable presser foot assembly and the right movable presser foot assembly, and the complementary presser foot assembly can perform three-dimensional movement on the workbench to move the complementary presser foot to the gap between the left movable presser foot assembly and the right movable presser foot assembly for free adjustment and combination, and the user can also adjust the number and arrangement gap of the left presser foot and the right presser foot respectively according to actual needs, thereby realizing a combined presser foot of any length, and the combined presser foot can press and fix the sheet metal workpiece, and the bending knife die of the bending machine can perform bending operation on the sheet metal workpiece, thereby realizing flexible bending processing of sheet metal workpieces of different sizes and angles; the overall design is reasonable, the free combination is convenient, the processing efficiency is high, and the degree of automation is high, and it can be promoted for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the back structure of the present invention;

[0023] Figure 3 A side view of a complementary presser foot assembly of the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the longitudinal moving mechanism of the present invention;

[0025] Figure 5 It is a schematic structural diagram of the movable presser foot assembly of the present invention. DETAILED DESCRIPTION

[0026] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] like Figure 1 As shown, a flexible bending center that can be freely combined includes a workbench 1, a complementary presser foot assembly 2 arranged in the middle of the workbench 1, and a movable presser foot assembly 3 arranged at the bottom of the workbench 1, wherein the complementary presser foot assembly 2 is located above the movable presser foot assembly 3. In this embodiment, the sheet metal workpiece to be processed can be sent to the bottom of the workbench 1 in the feeding device of the bending machine, and the movable presser foot assembly 3 can be moved at the bottom of the workbench 1. The complementary presser foot assembly 2 can be freely combined with the movable presser foot assembly 3 to form a combined presser foot of any length to fix the sheet metal workpiece, and the bending die of the bending machine can bend the sheet metal workpiece, thereby performing flexible bending processing on sheet metal workpieces of different sizes, lengths and angles.

[0028] like Figure 1 and Figure 3 As shown, the complementary presser foot assembly 2 includes a transverse moving plate 21, a plurality of lifting and moving mechanisms 22, a plurality of longitudinal moving mechanisms 23, a plurality of presser foot connecting seats 24 and a plurality of complementary presser feet 25. Two parallel first guide rails 11 are transversely arranged on the front of the workbench 1. First sliders 211 are respectively arranged on both sides of the back of the transverse moving plate 21. The transverse moving plate 21 is connected to the first guide rail 11 through the first sliders 211. In this embodiment, the transverse moving plate 21 can move transversely on the workbench 1. Specifically, the first slider 211 of the transverse moving plate 21 can move transversely along the first guide rail 11 on the workbench 1.

[0029] like Figure 3 and Figure 4As shown, the lifting and moving mechanism 22 includes a lifting and moving seat 221 and a lifting and driving mechanism 222. The front of the transverse moving plate 21 is provided with a plurality of second guide rails 212 parallel to each other in the vertical direction. The two sides of the back of the lifting and moving seat 221 are provided with second sliders 2211 respectively. The lifting and moving seat 221 is connected to the two second guide rails 212 through the second sliders 2211. The lifting and driving mechanism 222 is provided at the top of the transverse moving plate 21, and the movable end of the lifting and driving mechanism 222 is connected to the lifting and moving seat 221. In this embodiment, under the action of the lifting and driving mechanism 222, the lifting and moving seat 221 can be pushed to realize lifting and lowering movement on the transverse moving plate 21. Specifically, the second slider 2211 of the lifting and moving seat 221 can perform lifting and lowering movement along the second guide rails 212 on the transverse moving plate 21.

[0030] Furthermore, the lifting drive mechanism 222 is a motor drive mechanism, a cylinder drive mechanism or a hydraulic drive mechanism.

[0031] like Figure 4 As shown, further, the lifting drive mechanism 222 is a cylinder drive mechanism, and the cylinder drive mechanism 222 includes a cylinder seat 2221 and a guide rod cylinder 2222, wherein the cylinder seat 2221 is disposed on the top of the transverse moving plate 21, and the guide rod cylinder 2222 is disposed on the cylinder seat 2221, and the piston end of the guide rod cylinder 2222 is connected to the lifting moving seat 221. In this embodiment, when the guide rod cylinder 2222 moves outward, the lifting moving seat 221 can be driven to move downward, and when the guide rod cylinder 2222 retracts back, the lifting moving seat 221 can be driven to move upward.

[0032] like Figure 3 As shown, the longitudinal moving mechanism 23 is arranged on the lifting and moving seat 221, the top of the presser foot connecting seat 24 is connected to the longitudinal moving mechanism 23, and the bottom of the presser foot connecting seat 24 is connected to the complementary presser foot 25. In this embodiment, the complementary presser foot 25 is connected to the presser foot connecting seat 24, and the complementary presser foot 25 can realize longitudinal movement under the action of the longitudinal moving mechanism 23.

[0033] like Figure 4As shown, further, the longitudinal moving mechanism 23 includes a fixed plate 231, two third guide rails 232, two third sliders 233 and a slide cylinder 234, the third guide rails 232 are respectively arranged at both sides of the bottom of the lifting and moving seat 221, the third sliders 233 are arranged at both sides of the top of the fixed plate 231, the fixed plate 231 is connected to the third guide rails 232 through the third sliders 233, the slide cylinder 234 is arranged at the top of the lifting and moving seat 221, a through groove (not shown) is arranged in the middle of the lifting and moving seat 221, the slide of the slide cylinder 234 passes through the through groove and is connected to the top of the fixed plate 231, and the bottom of the fixed plate 231 is connected to the presser foot connecting seat 24. In this embodiment, the presser foot connecting seat 24 is connected to the fixed plate 231, and under the action of the slide cylinder 234, the presser foot connecting seat 24 can be driven to move longitudinally along the direction of the third guide rails 232, thereby realizing the longitudinal displacement of the complementary presser foot 25.

[0034] Furthermore, the complementary presser foot assembly 2 also includes a transverse driving mechanism (not shown), which is connected to the transverse moving plate 21. In this embodiment, the transverse driving mechanism can drive the transverse moving plate 21 to automatically move on the workbench 1. It should be noted that the transverse driving mechanism can be one of a chain belt transmission mechanism and a cylinder driving mechanism. Since the transverse driving mechanism is a commonly used prior art, this embodiment will not elaborate on the structure and driving principle of the transverse driving mechanism.

[0035] like Figure 1 As shown, the movable presser foot assembly 3 includes a slide rail 31, a left movable presser foot assembly 32 and a right movable presser foot assembly 33. The slide rail 31 is arranged at the bottom of the workbench 1, the left movable presser foot assembly 32 is arranged at the left side of the slide rail 31, and the right movable presser foot assembly 33 is arranged at the right side of the slide rail 31. In this embodiment, the left movable presser foot assembly 32 and the right movable presser foot assembly 33 can be moved on the slide rail 31 respectively to adjust the gap between the left movable presser foot assembly 32 and the right movable presser foot assembly 33, and the complementary presser foot assembly 2 can be moved three-dimensionally on the workbench 1 to move the complementary presser foot 25 to the gap between the left movable presser foot assembly 32 and the right movable presser foot assembly 33 to realize the free combination of the presser feet.

[0036] like Figure 5As shown, further, the left movable presser foot assembly 32 includes a first motor 321, a first reducer 322, a first screw rod mounting seat 323, a first screw rod 324, a first screw rod nut seat 325, a first pull rod 326, a plurality of first guide blocks 327 and a plurality of left presser feet 328, the first screw rod mounting seat 323 is arranged at the bottom of the workbench 1 on the left side of the slide rail 31, the first screw rod 324 is sleeved on the first screw rod mounting seat 323, the output shaft of the first motor 321 is connected to the first reducer 322, the output end of the first reducer 322 is connected to the first screw rod 324, the first screw rod nut seat 325 is sleeved on the first screw rod 324, one end of the first pull rod 326 is connected to the right side of the first screw rod nut seat 325, the other end of the first pull rod 326 is through-connected with a plurality of left presser feet 328, and the top of each left presser foot 328 is connected to the slide rail 31 through the first guide block 327. In this embodiment, when the position of the left presser foot 328 needs to be moved, the first motor 321 is started, and the first screw rod 324 is driven to rotate through the deceleration and torque increase of the first reducer 322. Since the first screw rod nut seat 325 is sleeved on the first screw rod 324, the first screw rod nut seat 325 is driven to move on the first screw rod 324. The first pull rod 326 is connected to the first screw rod nut seat 325, which can drive the left presser foot 328 on the first pull rod 326 to achieve lateral displacement. It should be noted that the user can also adjust the gap between adjacent left presser feet 328 according to actual conditions.

[0037] like Figure 5As shown, further, the right movable presser foot assembly 33 includes a second motor 331, a second reducer 332, a second screw mounting seat 333, a second screw 334, a second screw nut seat 335, a second pull rod 336, a plurality of second guide blocks 337 and a plurality of right presser feet 338, the second screw mounting seat 333 is arranged at the bottom of the workbench 1 on the right side of the slide rail 31, the second screw 334 is sleeved on the second screw mounting seat 333, the output shaft of the second motor 331 is connected to the second reducer 332, the output end of the second reducer 332 is connected to the second screw 334, the second screw nut seat 335 is sleeved on the second screw 334, one end of the second pull rod 336 is connected to the left side of the second screw nut seat 335, the other end of the second pull rod 336 is connected through and connected to a plurality of right presser feet 338, and the top of each right presser foot 338 is connected to the slide rail 31 through a second guide block 337. In this embodiment, when the position of the right presser foot 338 needs to be moved, the second motor 331 is started, and the second screw rod 334 is driven to rotate through the deceleration and torque increase of the second reducer 332. Since the second screw rod nut seat 335 is sleeved on the second screw rod 334, the second screw rod nut seat 335 is driven to move on the second screw rod 334. The second pull rod 336 is connected to the second screw rod nut seat 335, which can drive the right presser foot 338 on the second pull rod 336 to achieve lateral displacement. It should be noted that the user can also adjust the gap between adjacent right presser feet 338 according to actual conditions.

[0038] like Figure 1 and Figure 3 As shown, further, the complementary presser foot 25, the left presser foot 328 and the right presser foot 338 have the same structure, and the bottom is provided with a smooth end surface 200, and the middle of the complementary presser foot 25, the left presser foot 328 and the right presser foot 338 are respectively provided with a hollow waist groove 201 for easy hand-held movement. In this embodiment, the provision of the smooth end surface 200 can make the complementary presser foot 25, the left presser foot 328 and the right presser foot 338 more closely fit the surface of the sheet metal workpiece, thereby improving the accuracy of the flexible bending.

[0039] like Figure 5 As shown, further, the slide rail 31 is formed by splicing segmented short rails. In this embodiment, the slide rail 31 formed by splicing segmented short rails can facilitate users to install a presser foot of a required length according to actual needs.

[0040] like Figure 2As shown, further, the present invention also includes a base 4, a stand 5 and a linear guide module 6, the front of the stand 5 is slidably connected to the back of the workbench 1 through the linear guide module 6, the bottom of the stand 5 is fixedly connected to the base 4, and the top side of the base 4 is provided with a plurality of lower presser feet 41, and the lower presser feet 41 are arranged below the movable presser foot assembly 3. In this embodiment, the sheet metal workpiece to be processed can be placed on the lower presser feet 41 on the base 4, and the complementary presser feet 25 can be freely combined with the left presser foot 328 and the right presser foot 338 to form a combined presser foot, and the combined presser foot can abut the sheet metal workpiece on the lower presser foot 41, and under the action of the linear guide module 6, the workbench 1 can be driven to lift and slide as a whole, thereby realizing the reliable fixation of the sheet metal workpiece, and after the fixation is completed, the bending knife die of the bending machine can perform a bending operation on the sheet metal workpiece, thereby realizing the flexible bending processing of sheet metal workpieces of different sizes and angles.

[0041] By adopting the above-mentioned technical schemes, the present invention can place the sheet metal workpiece to be processed on the lower presser foot of the base, and the left movable presser foot assembly and the right movable presser foot assembly can respectively realize automatic horizontal movement at the bottom of the workbench to adjust the gap between the left movable presser foot assembly and the right movable presser foot assembly, and the complementary presser foot assembly can perform three-dimensional movement on the workbench to move the complementary presser foot to the gap between the left movable presser foot assembly and the right movable presser foot assembly for free adjustment and combination, and the user can also adjust the number and arrangement gap of the left presser foot and the right presser foot respectively according to actual needs, thereby realizing a combined presser foot of any length, and the combined presser foot can press and fix the sheet metal workpiece, and the bending knife die of the bending machine can perform bending operation on the sheet metal workpiece, thereby realizing flexible bending processing of sheet metal workpieces of different sizes and angles; the overall design is reasonable, the free combination is convenient, the processing efficiency is high, and the degree of automation is high, and it can be promoted for use.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A freely combinable flexible bending center, characterized in that: It comprises a workbench, a complementary presser foot assembly arranged in the middle of the workbench, and a movable presser foot assembly arranged at the bottom of the workbench, wherein the complementary presser foot assembly is located above the movable presser foot assembly; The complementary presser foot assembly comprises a transverse moving plate, a plurality of lifting and moving mechanisms, a plurality of longitudinal moving mechanisms, a plurality of presser foot connecting seats and a plurality of complementary presser feet. The front of the workbench is laterally provided with two parallel first guide rails, and the two sides of the back of the transverse moving plate are respectively provided with first sliders, and the transverse moving plate is connected to the first guide rails through the first sliders. The lifting and moving mechanism comprises a lifting and moving seat and a lifting and driving mechanism, a plurality of second guide rails parallel to each other are arranged on the front side of the transverse moving plate in the vertical direction, second sliders are arranged on both sides of the back side of the lifting and moving seat, the lifting and moving seat is connected to the two second guide rails through the second sliders, the lifting and driving mechanism is arranged on the top of the transverse moving plate, and the movable end of the lifting and driving mechanism is connected to the lifting and moving seat; The longitudinal moving mechanism is arranged on the lifting and moving seat, the top of the presser foot connecting seat is connected to the longitudinal moving mechanism, and the bottom of the presser foot connecting seat is connected to the complementary presser foot; The longitudinal moving mechanism comprises a fixed plate, two third guide rails, two third sliders and a slide cylinder, wherein the third guide rails are respectively arranged at two sides of the bottom of the lifting and moving seat, third sliders are arranged at two sides of the top of the fixed plate, the fixed plate is connected to the third guide rails through the third sliders, the slide cylinder is arranged at the top of the lifting and moving seat, a through slot is arranged in the middle of the lifting and moving seat, the slide of the slide cylinder passes through the through slot and is connected to the top of the fixed plate, and the bottom of the fixed plate is connected to the presser foot connecting seat; The complementary presser foot assembly also includes a transverse driving mechanism, and the transverse driving mechanism is connected to the transverse moving plate; The movable presser foot assembly comprises a slide rail, a left movable presser foot assembly and a right movable presser foot assembly, wherein the slide rail is arranged at the bottom of the workbench, the left movable presser foot assembly is arranged at the left side of the slide rail, and the right movable presser foot assembly is arranged at the right side of the slide rail; The left movable presser foot assembly includes a first motor, a first reducer, a first screw mounting seat, a first screw, a first screw nut seat, a first pull rod, a plurality of first guide blocks and a plurality of left presser feet. The first screw mounting seat is arranged at the bottom of the workbench on the left side of the slide rail, the first screw is sleeved on the first screw mounting seat, the output shaft of the first motor is connected to the first reducer, the output end of the first reducer is connected to the first screw, the first screw nut seat is sleeved on the first screw, one end of the first pull rod is connected to the right side of the first screw nut seat, the other end of the first pull rod is through-connected with a plurality of left presser feet, and the top of each left presser foot is connected to the slide rail through the first guide block.

2. The freely combinable flexible bending center according to claim 1, characterized in that: The right movable presser foot assembly includes a second motor, a second reducer, a second screw mounting seat, a second screw, a second screw nut seat, a second pull rod, a plurality of second guide blocks and a plurality of right presser feet. The second screw mounting seat is arranged at the bottom of the workbench on the right side of the slide rail, the second screw is sleeved on the second screw mounting seat, the output shaft of the second motor is connected to the second reducer, the output end of the second reducer is connected to the second screw, the second screw nut seat is sleeved on the second screw, one end of the second pull rod is connected to the left side of the second screw nut seat, the other end of the second pull rod is through-connected to a plurality of right presser feet, and the top of each right presser foot is connected to the slide rail through the second guide block.

3. The freely combinable flexible bending center according to claim 1, characterized in that: The lifting drive mechanism is one of a motor drive mechanism, a cylinder drive mechanism or a hydraulic drive mechanism.

4. The freely combinable flexible bending center according to claim 3 is characterized in that: The lifting drive mechanism is a cylinder drive mechanism, which includes a cylinder seat and a guide rod cylinder. The cylinder seat is arranged on the top of the transverse moving plate, the guide rod cylinder is arranged on the cylinder seat, and the piston end of the guide rod cylinder is connected to the lifting moving seat.

5. The freely combinable flexible bending center according to claim 2, characterized in that: The complementary presser foot, the left presser foot and the right presser foot have the same structure, and the bottoms are all provided with smooth end surfaces. The middle parts of the complementary presser foot, the left presser foot and the right presser foot are respectively provided with hollow waist grooves for easy hand-held movement.

6. The freely combinable flexible bending center according to claim 1, characterized in that: The slide rail is formed by splicing segmented short rails.

7. The freely combinable flexible bending center according to claim 1, characterized in that: It also includes a base, a stand and a linear guide module. The front of the stand is slidably connected to the back of the workbench through the linear guide module. The bottom of the stand is fixedly connected to the base. A plurality of lower presser feet are provided on the top side of the base, and the lower presser feet are arranged below the movable presser foot assembly.

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