Bending center automatic tool changing device

Abstract

The utility model discloses an automatic tool changing device for a bending center. The automatic tool changing device is provided with a middle structure, a first tool adjusting assembly and a second tool adjusting assembly. The first cutter adjusting assembly comprises a first cutter, and the first cutter is arranged on the mounting plate in an up-and-down back-and-forth overturning mode; the second cutter adjusting assembly comprises second cutters, and the multiple second cutters are arranged on the mounting frame in the mode of transversely moving back and forth and press the first cutters towards the middle structure. According to the actual length size of a machined product, the redundant first cutters can be overturned upwards and are matched with the transverse movement of the second cutters to press the rest first cutters towards the middle structure, so that the middle structure, the first cutters and the second cutters are spliced into the size suitable for the product, various cutters of different sizes do not need to be designed, and the production efficiency is improved. The tool cost is reduced, meanwhile, the time for replacing different tools is saved, the overall bending efficiency is improved, and existing machining requirements can be met.

Description

Technical Field

[0001] The utility model relates to the field technology of bending centers, in particular to an automatic tool changing device for a bending center. Background Art

[0002] A bending machine is a machine that can bend thin plates. Its structure mainly includes a bracket, a workbench and a clamping plate. The workbench is placed on the bracket. The workbench consists of a base and a pressure plate. The base is connected to the clamping plate by a hinge. The base consists of a base shell, a coil and a cover plate. The coil is placed in the depression of the base shell, and the top of the depression is covered with a cover plate. When in use, the coil is energized by a wire, and after energization, an attractive force is generated on the pressure plate, thereby clamping the thin plate between the pressure plate and the base. Due to the use of electromagnetic force clamping, the pressure plate can be made into a variety of workpiece requirements, and can process workpieces with side walls. It is also very easy to operate. Among them, the bending center is also a type of bending machine.

[0003] When the bending center is bending the product, it needs to press the product with a pressing tool, and the pressing effect of the pressing tool can directly affect the quality of the product bending process; when the existing bending center pressing tool presses the product, the size of the product will often change due to the difference in products. Therefore, it is necessary to design upper pressing tools of different lengths for products of different sizes, which not only makes the tool cost higher, but also the process of replacing the tool will affect the efficiency of the bending process, and cannot meet the existing processing needs. Therefore, it is necessary to study a new technical solution to solve the above problems. Utility Model Content

[0004] In view of this, the utility model aims to improve the deficiencies of the prior art, and its main purpose is to provide an automatic tool changing device for a bending center, which can effectively solve the problems of high cost of existing bending center tools, low bending processing efficiency and inability to meet existing processing needs.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A bending center automatic tool changing device comprises a mounting frame, a central structure, a first tool adjustment assembly and a second tool adjustment assembly; the mounting frame is arranged on an external frame; the central structure is arranged on the mounting frame, and the central structure comprises a central frame, a central tool and a central drive mechanism; the central frame is arranged on the mounting frame; the central tool can be moved up and down and back and forth on the central frame; the central drive mechanism is arranged on the external frame and drives the central tool to move up and down and back and forth; the first tool adjustment assembly is arranged on the external frame and is located beside the central structure, and the first tool adjustment assembly comprises a mounting plate, a first tool and a first adjustment assembly. The drive unit; the mounting plate is arranged on the external frame, the first cutting tool is a plurality of cutting tools arranged horizontally, and the plurality of first cutting tools can be arranged on the mounting plate so as to be flipped up and down and back and forth; the first adjustment drive unit is arranged on the mounting plate and drives the first cutting tool to flip up and down and back and forth; the second cutting tool adjustment assembly is arranged on the mounting frame; the second cutting tool adjustment assembly includes a second cutting tool and a second adjustment drive unit; the second cutting tool is a plurality of cutting tools arranged horizontally, and the plurality of second cutting tools can be arranged on the mounting frame so as to be movable back and forth horizontally and press the first cutting tool toward the direction of the central structure; the second adjustment drive unit is arranged on the mounting frame and drives the second cutting tool to move back and forth horizontally.

[0007] As a preferred solution, the first tool adjustment assembly is provided in two pieces, which are symmetrically arranged on the left and right sides of the central structure; the second tool adjustment assembly is also provided in two pieces, and the two second tool adjustment assemblies are respectively arranged on the outsides of the two first tool adjustment assemblies.

[0008] As a preferred solution, the center rack has a movable groove extending up and down, and the center tool can be movably arranged in the movable groove up and down, and a clearance groove is integrally recessed inwardly at the upper end of the center tool. A limit piece and a limit driving mechanism are arranged on the center rack, and the limit piece is configured in two ways. The two limit pieces are arranged symmetrically laterally and can be movably arranged in the movable groove laterally, and the limit piece moves back and forth directly above the clearance groove; the limit driving mechanism is configured in two ways, and both limit driving mechanisms are arranged on the center rack and drive the corresponding limit piece to move.

[0009] As a preferred scheme, the first adjustment drive unit includes a movable seat, a first driving mechanism, a rotating shaft, a second driving mechanism and an adjusting shaft; the movable seat can be arranged on the mounting plate to move back and forth laterally, and the first driving mechanism is arranged on the mounting plate and drives the movable seat to move back and forth laterally; the rotating shaft can be arranged on the mounting plate to rotate back and forth and is located on the side of the movable seat, and the lower end of the aforementioned movable seat is sleeved on the rotating shaft and is slidably connected between the rotating shaft; the second driving mechanism is arranged on the mounting plate and drives the rotating shaft to rotate back and forth; one end of the adjusting shaft is arranged on the rotating shaft through a connecting rod, one end of the connecting rod is slidably arranged on the rotating shaft and is driven by the movable seat to move back and forth laterally along the rotating shaft, and the other end of the connecting rod is fixedly connected to the adjusting shaft; the adjusting shaft is also connected to the rotating shaft through a fixed rod, one end of the fixed rod is fixedly connected to the rotating shaft and is driven to flip back and forth by the rotating shaft, and the adjusting shaft is slidably connected to the other end of the fixed rod and is driven to flip back and forth up and down by the fixed rod; the aforementioned multiple first tools are all sleeved on the rotating shaft and are driven to flip back and forth up and down by the adjusting shaft.

[0010] As a preferred solution, each first tool is provided with an adjustment hole that matches the adjustment shaft, and the corresponding first tool is driven to flip by inserting the adjustment shaft into the adjustment hole of the corresponding first tool.

[0011] As a preferred solution, the first tool adjustment assembly also includes a fixed plate and a third drive mechanism. The fixed plate can be flipped up and down on the mounting plate and is located directly above the first tool. The lower end of the fixed plate is provided with a buckle that cooperates with the first tool. The third drive mechanism is arranged on the mounting plate and drives the fixed plate to flip back and forth.

[0012] As a preferred solution, the mounting plate is driven by a fifth driving mechanism to be movably disposed on the external frame in a transverse direction.

[0013] As a preferred solution, a limit rod and an adjusting cylinder are provided at the upper end of each second tool. The limit rod can be movably arranged on the second tool up and down, and the adjusting cylinder is arranged on the second tool and drives the limit rod to move up and down; the second adjustment drive unit includes a movable rod and a fourth driving mechanism; the movable rod can be movably arranged on the mounting frame laterally back and forth, and the lower end surface of the movable rod is integrally recessed with a plurality of limit grooves arranged laterally at intervals. The limit rod on each of the second tools corresponds to the corresponding limit groove position up and down, and the limit rod moves upward and extends into the limit groove; the fourth driving mechanism is arranged on the mounting frame and drives the movable rod to move laterally back and forth.

[0014] As a preferred solution, the width of the first tool is one tenth of the width of the second tool.

[0015] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that:

[0016] It is provided with a central structure, a first tool adjustment component and a second tool adjustment component; and the first tool adjustment component includes a first tool, and the first tool can be set on a mounting plate so as to be flipped up and down and back and forth; the second tool adjustment component includes a second tool, and a plurality of second tools can be set on a mounting frame so as to be movable back and forth laterally and press the first tool toward the central structure; so that according to the actual length of the processed product, by flipping the excess first tool upwards, and cooperating with the lateral movement of the second tool to press the remaining first tool toward the central structure, the central structure, the first tool and the second tool can be spliced ​​into a size suitable for the product, without designing a plurality of tools of different sizes, thereby reducing the tool cost, saving the time for replacing different tools, and improving the overall bending efficiency, so that it can meet the existing processing needs.

[0017] In order to more clearly illustrate the structural features and functions of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of a preferred embodiment of the utility model;

[0019] Figure 2 It is a three-dimensional structural schematic diagram of the first tool adjustment assembly in the preferred embodiment of the utility model;

[0020] Figure 3 It is a three-dimensional structural schematic diagram of the first tool adjustment assembly from another angle in the preferred embodiment of the utility model;

[0021] Figure 4 A schematic diagram of the three-dimensional structure of the central structure in a preferred embodiment of the present utility model;

[0022] Figure 5 A partial assembly diagram of the second tool adjustment assembly in a preferred embodiment of the present utility model;

[0023] Figure 6 yes Figure 5 The enlarged schematic diagram of point A in the middle;

[0024] Figure 7 It is a three-dimensional structural schematic diagram of the second tool in the preferred embodiment of the utility model.

[0025] Description of the accompanying drawings:

[0026] 10. Mounting frame 20. Center structure

[0027] 201, activity slot 202, yield slot

[0028] 21. Middle rack 22. Middle tool

[0029] 23. Mid-mounted driving mechanism 24. Limiting member

[0030] 25. Limit drive mechanism 30. First tool adjustment component

[0031] 301, adjustment hole 31, mounting plate

[0032] 32. First tool 33. First adjustment drive unit

[0033] 331. movable seat 332. first driving mechanism

[0034] 333, rotating shaft 334, second driving mechanism

[0035] 335, adjusting shaft 336, connecting rod

[0036] 337, fixed rod 34, fixed plate

[0037] 341, buckle portion 35, third driving mechanism

[0038] 36. Fifth driving mechanism

[0039] 40. Second tool adjustment assembly 401. Limiting groove

[0040] 41. Second tool 411. Limit rod

[0041] 412, adjusting cylinder 42, second adjusting drive unit

[0042] 421. Movable rod 422. Fourth driving mechanism. DETAILED DESCRIPTION

[0043] Please refer to Figures 1 to 7 As shown, it shows the specific structure of a preferred embodiment of the utility model, which includes a mounting frame 10, a central structure 20, a first tool adjustment assembly 30 and a second tool adjustment assembly 40.

[0044] The mounting bracket 10 is arranged on an external frame.

[0045] The central structure 20 is arranged on the mounting frame 10, and the central structure 20 includes a central frame 21, a central tool 22 and a central driving mechanism 23; the central frame 21 is arranged on the mounting frame 10; the central tool 22 can be arranged on the central frame 21 to move up and down and back and forth; the central driving mechanism 23 is arranged on the external frame and drives the central tool 22 to move up and down and back and forth. When the bending process is completed, the central driving mechanism 23 drives the central tool 22 to move upward, so that the spliced ​​tools have horizontal activity space, which is convenient for the removal process of the bent products. In this embodiment, the central frame 21 has a movable groove 201 extending up and down, and the central tool 22 can be movably arranged in the movable groove 201 up and down. The upper end of the central tool 22 is integrally recessed with a clearance groove 202. The central frame 21 is provided with a limit member 24 and a limit drive mechanism 25. The limit member 24 is arranged in two positions, and the two limit members 24 are arranged symmetrically in the horizontal direction and can be movably arranged in the movable groove 201 in the horizontal direction. The limit member 24 moves back and forth just above the clearance groove 202; the limit drive mechanism The two limit drive mechanisms 25 are both arranged on the middle frame 21 and drive the corresponding limit members 24 to move. When the knife is spliced, the limit drive mechanism 25 drives the limit member 24 to move outward, and makes the limit member abut against the upper end surface of the middle tool 22, thereby limiting the upper and lower directions of the middle tool 22. When the processing is completed, the limit drive mechanism 25 drives the limit member 24 to move into the make way groove 202, and the middle drive mechanism 23 drives the middle tool 22 to move upward, thereby facilitating the removal process of the product after bending.

[0046] The first tool adjustment assembly 30 is arranged on the external frame and is located beside the central structure 20. The first tool adjustment assembly 30 includes a mounting plate 31, a first tool 32 and a first adjustment drive unit 33; the mounting plate 31 is arranged on the external frame, and the first tools 32 are arranged in a plurality of manners in a transverse arrangement, and the plurality of first tools 32 can be arranged on the mounting plate 31 so as to be flipped up and down; the first adjustment drive unit 33 is arranged on the mounting plate 31 and drives the first tool 32 to flip up and down; in the present embodiment, the first tool adjustment assembly 30 is arranged in two manners, which are symmetrically arranged on the left and right sides of the central structure 20; in the present embodiment, the first adjustment drive unit 33 includes a movable seat 331, a first drive mechanism 332, a rotating shaft 333, a second drive mechanism 334 and an adjustment shaft 335; the movable seat 331 can be arranged on the mounting plate 31 to move back and forth in a transverse manner, the first drive mechanism 332 is arranged on the mounting plate 31 and drives the movable seat 331 to move back and forth in a transverse manner; the rotating shaft 3 The movable seat 331 is rotatably arranged on the mounting plate 31 and is located beside the movable seat 331. The lower end of the movable seat 331 is sleeved on the rotating shaft 333 and is slidably connected between the rotating shaft 333. The second driving mechanism 334 is arranged on the mounting plate 31 and drives the rotating shaft 333 to rotate back and forth. One end of the adjusting shaft 335 is arranged on the rotating shaft 333 through a connecting rod 336. One end of the connecting rod 336 is slidably arranged on the rotating shaft 333 and is driven by the movable seat 331 to rotate horizontally along the rotating shaft 333. The other end of the connecting rod 336 is fixedly connected to the adjusting shaft 335; the adjusting shaft 335 is also connected to the rotating shaft 333 through a fixing rod 337, one end of the fixing rod 337 is fixedly connected to the rotating shaft 333 and driven to flip back and forth by the rotating shaft 333, the adjusting shaft 335 and the other end of the fixing rod 337 are connected in a transverse sliding manner and driven to flip back and forth up and down by the fixing rod 337; the aforementioned multiple first cutters 32 are all sleeved on the rotating shaft 333 and driven to flip back and forth up and down by the adjusting shaft 335. Each first cutter 32 is provided with an adjusting hole 301 that matches the adjusting shaft, and the corresponding first cutter 32 is flipped by inserting the adjusting shaft 335 into the adjusting hole 301 of the corresponding first cutter 32. The first tool adjustment assembly 30 also includes a fixing plate 34 and a third driving mechanism 35. The fixing plate 34 can be turned upside down on the mounting plate 31 and is located directly above the first tool 32. The lower end of the fixing plate 34 is provided with a buckle 341 that cooperates with the first tool 32. The third driving mechanism 35 is provided on the mounting plate 31 and drives the fixing plate 34 to turn upside down and back and forth, thereby fixing the position of the first tool 32 that turns upward. The mounting plate 31 is driven by a fifth driving mechanism 36 and can be movably arranged on the external frame in a horizontal manner.

[0047] The second tool adjustment assembly 40 is arranged on the mounting frame 10; the second tool adjustment assembly 40 includes a second tool 41 and a second adjustment drive unit 42; the second tool 41 is arranged in a plurality of transversely arranged, and the plurality of second tools 41 can be arranged on the mounting frame 10 to be movable back and forth transversely and press the first tool 32 toward the center structure 20, so as to splice a specific number of first tools 32 and second tools 41 together, and splice together with the center tool 22, so as to meet the bending process of products of different sizes; the second adjustment drive unit 42 is arranged on the mounting frame 10 and drives the second tool 41 to move back and forth transversely. In this embodiment, the second tool adjustment assembly 40 is also arranged in two, and the two second tool adjustment assemblies 40 are respectively arranged on the outside of the two first tool adjustment assemblies 30. The arrangement of the two first tool adjustment assemblies 30 and the two second tool adjustment assemblies 40 enables the overall splicing of tools of more sizes, so as to adapt to the bending process of products of more different sizes. In this embodiment, a limiting rod 411 and an adjusting cylinder 412 are provided at the upper end of each second tool 41. The limiting rod 411 can be movably arranged on the second tool 41 up and down, and the adjusting cylinder 412 is arranged on the second tool 41 and drives the limiting rod 411 to move up and down; the second adjustment drive unit 42 includes a movable rod 421 and a fourth driving mechanism 422; the movable rod 421 can be movably arranged on the mounting frame 10 laterally back and forth, and the lower end surface of the movable rod 421 is integrally recessed with a plurality of limiting grooves 401 arranged laterally at intervals, and the limiting rod 411 on each of the second tools 41 mentioned above and the corresponding limiting grooves 401 are provided in a fixed manner. The corresponding limit grooves 401 correspond to each other up and down, and the above-mentioned limit rod 411 moves upward and extends into the limit groove 401; the fourth driving mechanism 422 is arranged on the mounting frame 10 and drives the movable rod 421 to move back and forth horizontally. When a certain number of second tools 41 are needed, the adjusting cylinder 412 in the corresponding second tool 41 drives the corresponding limit rod 411 to move upward and extend into the corresponding limit groove 401, and the corresponding number of second tools 41 are driven to move through the fourth driving mechanism 422. The width of the first tool 32 is one tenth of the width of the second tool 41, so that the dimensional accuracy of the tool splicing is higher.

[0048] The design focus of the utility model is that: it is provided with a central structure, a first tool adjustment component and a second tool adjustment component; and the first tool adjustment component includes a first tool, and the first tool can be turned up and down and back and forth and is set on the mounting plate; the second tool adjustment component includes a second tool, and a plurality of second tools can be arranged on the mounting frame to move back and forth horizontally and press the first tool toward the central structure; so that according to the actual length size of the processed product, by turning up the redundant first tools, and cooperating with the lateral movement of the second tool to press the remaining first tools toward the central structure, the central structure, the first tool and the second tool can be spliced ​​into a size suitable for the product, without designing a plurality of tools of different sizes, reducing the tool cost, while saving the time of replacing different tools, improving the overall bending efficiency, so that it can meet the existing processing needs.

[0049] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An automatic tool changing device for a bending center, characterized in that: The invention comprises a mounting frame, a central structure, a first tool adjustment assembly and a second tool adjustment assembly; the mounting frame is arranged on the external frame; the central structure is arranged on the mounting frame, and the central structure comprises a central frame, a central tool and a central drive mechanism; the central frame is arranged on the mounting frame; the central tool can be arranged on the central frame to move up and down and back and forth; the central drive mechanism is arranged on the external frame and drives the central tool to move up and down and back and forth; the first tool adjustment assembly is arranged on the external frame and is located beside the central structure, and the first tool adjustment assembly comprises a mounting plate, a first tool and a first adjustment drive unit; the The mounting plate is arranged on the external frame, and the first cutting tools are arranged in a plurality of transversely arranged tools, and the plurality of first cutting tools can be arranged on the mounting plate so as to be flipped up and down and back and forth; the first adjusting drive unit is arranged on the mounting plate and drives the first cutting tools to flip up and down and back and forth; the second cutting tool adjusting assembly is arranged on the mounting frame; the second cutting tool adjusting assembly includes a second cutting tool and a second adjusting drive unit; the second cutting tools are arranged in a plurality of transversely arranged tools, and the plurality of second cutting tools can be arranged on the mounting frame so as to be movable back and forth laterally and press the first cutting tool toward the direction of the central structure; the second adjusting drive unit is arranged on the mounting frame and drives the second cutting tool to move back and forth laterally.

2. The automatic tool changing device for the bending center according to claim 1 is characterized in that: The first tool adjustment assembly is provided in two pieces, which are symmetrically arranged on the left and right sides of the central structure; the second tool adjustment assembly is also provided in two pieces, and the two second tool adjustment assemblies are respectively arranged on the outsides of the two first tool adjustment assemblies.

3. The automatic tool changing device for the bending center according to claim 1 is characterized in that: The center frame has a movable groove extending up and down, and the center tool can be movably arranged in the movable groove up and down, and a clearance groove is integrally recessed inwardly at the upper end of the center tool. A limit piece and a limit driving mechanism are arranged on the center frame. The limit piece is arranged in two ways, and the two limit pieces are arranged symmetrically in the horizontal direction and can be movably arranged in the movable groove in the horizontal direction, and the limit piece moves back and forth just above the clearance groove; the limit driving mechanism is arranged in two ways, and the two limit driving mechanisms are both arranged on the center frame and drive the corresponding limit piece to move.

4. The automatic tool changing device for the bending center according to claim 1 is characterized in that: The first adjusting drive unit includes a movable seat, a first driving mechanism, a rotating shaft, a second driving mechanism and an adjusting shaft; the movable seat can be movably arranged on the mounting plate laterally back and forth, and the first driving mechanism is arranged on the mounting plate and drives the movable seat to move back and forth laterally; the rotating shaft can be rotatably arranged on the mounting plate and is located on the side of the movable seat, and the lower end of the aforementioned movable seat is sleeved on the rotating shaft and is slidably connected between the rotating shaft; the second driving mechanism is arranged on the mounting plate and drives the rotating shaft to rotate back and forth; one end of the adjusting shaft is arranged on the rotating shaft through a connecting rod, one end of the connecting rod is slidably arranged on the rotating shaft and is driven by the movable seat to move back and forth laterally along the rotating shaft, and the other end of the connecting rod is fixedly connected to the adjusting shaft; the adjusting shaft is also connected to the rotating shaft through a fixed rod, one end of the fixed rod is fixedly connected to the rotating shaft and is driven by the rotating shaft to flip back and forth, and the adjusting shaft and the other end of the fixed rod are slidably connected and are driven by the fixed rod to flip back and forth up and down; the aforementioned multiple first tools are all sleeved on the rotating shaft and are driven by the adjusting shaft to flip back and forth up and down.

5. The automatic tool changing device for the bending center according to claim 4 is characterized in that: Each first tool is provided with an adjustment hole matched with the adjustment shaft, and the adjustment shaft is inserted into the adjustment hole of the corresponding first tool to drive the corresponding first tool to flip.

6. The automatic tool changing device for the bending center according to claim 4 is characterized in that: The first tool adjustment assembly also includes a fixed plate and a third driving mechanism. The fixed plate can be set on the mounting plate and is located directly above the first tool. The lower end of the fixed plate is provided with a buckle that cooperates with the first tool. The third driving mechanism is set on the mounting plate and drives the fixed plate to flip back and forth.

7. The automatic tool changing device for the bending center according to claim 4 is characterized in that: The mounting plate is driven by a fifth driving mechanism and can be movably arranged on the external frame in a transverse direction.

8. The automatic tool changing device for the bending center according to claim 1 is characterized in that: A limit rod and an adjusting cylinder are provided at the upper end of each second tool. The limit rod can be movably arranged on the second tool up and down, and the adjusting cylinder is arranged on the second tool and drives the limit rod to move up and down; the second adjustment drive unit includes a movable rod and a fourth driving mechanism; the movable rod can be movably arranged on the mounting frame laterally back and forth, and the lower end surface of the movable rod is integrally recessed with a plurality of limit grooves arranged laterally at intervals. The limit rod on each of the second tools corresponds to the corresponding limit groove position up and down, and the limit rod moves upward and extends into the limit groove; the fourth driving mechanism is arranged on the mounting frame and drives the movable rod to move laterally back and forth.

9. The automatic tool changing device for the bending center according to claim 1 is characterized in that: The width of the first tool is one tenth of the width of the second tool.

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