A special-shaped bending machine

Abstract

This utility model discloses an irregular-shaped bending machine, relating to the field of bending machines. It includes a base plate, with an upper plate inserted into the upper end of the base plate. A mounting bracket is fixedly connected to the lower end of the upper plate. Mounting seats are rotatably connected to the inner sides of the mounting brackets, and multiple bending heads are fixedly connected to the outer sides of the mounting seats. This utility model, employing the above structure, eliminates the need for complex disassembly procedures, significantly reducing mold change downtime. The traditional head-changing time of over 20 minutes is reduced to 2-3 minutes, increasing equipment utilization by over 40%. Daily production capacity for small-batch, multi-specification orders can be increased by over 30%, reducing labor costs and processing errors. Ordinary operators can complete the head-changing operation. Furthermore, the precise positioning of the limit pins reduces manual calibration, lowering the bending defect rate by 5%-8%, enhancing production flexibility. The mounting seats integrate multiple bending heads of various specifications, allowing for quick adaptation to the processing of irregular-shaped parts with different curvatures and angles, and enabling efficient response to customized urgent orders.

Description

Technical Field

[0001] This utility model belongs to the field of bending machines, and specifically relates to an irregular-shaped bending machine. Background Technology

[0002] A bending machine is a machine that can bend thin plates. In the sheet metal industry, it is an important piece of equipment for bending and forming workpiece blanks. Its function is to press steel plates into parts of various shapes according to process requirements. Bending machines are divided into manual bending machines, hydraulic bending machines and CNC bending machines, etc.

[0003] According to Chinese Patent No. CN219093263U, a bending machine for irregularly shaped metal parts with adjustable bending angle is disclosed, which relates to the technical field of bending machines for irregularly shaped metal parts. The machine includes a base, a support fixedly mounted on the upper end of the base, a sliding groove on one side of the support, a pressing mechanism inside the support, and a worktable fixedly mounted on the upper end of the base. The worktable contains an angle adjustment mechanism. This invention solves the problem that existing bending machines have a fixed angle when bending irregularly shaped metal parts, making it impossible to adjust the angle within a wider range. This results in the bending machine being unable to precisely control the bending angle of different irregularly shaped metal parts. This invention, through the setting of an angle adjustment mechanism, a connecting shaft, a first plate, a second plate, a first gear, a second gear, and a third gear, achieves the adjustment of the bending angle by changing the included angle between the first and second plates through the rotation of the first and second gears. As can be seen from the above structure, the design of irregular bending machines that cannot quickly change bending heads will bring many significant drawbacks to the entire process of irregular sheet metal parts processing. The bending heads of such equipment mostly adopt a fixed or complex bolt locking structure. When replacing them, it is necessary to first disassemble the machine to unlock it, manually align it, and then re-tighten and calibrate it. A single replacement usually takes more than 20 minutes. For small-batch, multi-specification customized irregular parts processing scenarios, frequent bending head replacement will cause a lot of equipment downtime, directly reduce equipment utilization, and lead to a decrease in daily production capacity. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an irregular shape bending machine.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A profile bending machine includes a base plate, an upper plate inserted into the upper end of the base plate, a mounting bracket fixedly connected to the lower end of the upper plate, mounting seats rotatably connected to the inner side of the mounting bracket, and multiple bending heads fixedly connected to the outer side of the mounting seats. Limiting holes are formed on the outer side of the mounting bracket, and limiting pins are inserted into the interior of the limiting holes. The limiting pins pass through the limiting holes and are engaged with the mounting seats for limiting insertion. An installation assembly is fixedly connected to the upper end of the base plate, and a bending seat is snapped onto the upper end of the base plate via the installation assembly.

[0006] As a preferred technical solution, the installation component includes plug-in blocks fixedly connected to both sides of the upper end of the base plate. The lower end of the bending seat has plug-in slots on both sides, and a plug-in hole is provided on one side of the inner side of the plug-in slot. The plug-in slot and the plug-in block are plugged into each other.

[0007] As a preferred technical solution, each of the plug blocks has a circular groove on its outer side, and a snap-fit ​​spring is fixedly connected inside each of the circular grooves. The other end of the snap-fit ​​spring is fixedly connected to a snap-fit ​​connector, and the snap-fit ​​connector and the snap-fit ​​hole snap into each other.

[0008] As a preferred technical solution, both sides of the bending seat are fixedly connected to release springs on both sides of the snap-fit ​​hole, and the other end of the release spring is fixedly connected to a pressing plate. The inner side of the pressing plate is fixedly connected to a release head, and the release head is inserted into the snap-fit ​​hole.

[0009] As a preferred technical solution, a connecting ring is fixedly connected to the upper end of the upper plate. The outer surface of the connecting ring is provided with multiple fixing screw holes. Fixing screws are threaded into the interior of each fixing screw hole. The upper plate is fixedly connected to the hydraulic equipment by fixing screws.

[0010] As a preferred technical solution, the outer side of the base plate is fixedly connected with an installation edge, the upper end of the installation edge is provided with a hidden groove, the inside of the hidden groove is provided with an installation through hole, and an installation screw is inserted into the installation through hole. The base plate is fixedly connected to the base layer by the installation screw.

[0011] As a preferred technical solution, the upper end of the base plate and the lower end of the upper plate are both fixedly connected to a fixed guide seat, and guide holes are opened on opposite sides of the fixed guide seat, and guide rods are inserted into the guide holes.

[0012] Compared with the prior art, the beneficial effects of this utility model are: First, before operation, assemble the upper plate and the base plate by inserting them together. Use the mounting components on the upper part of the base plate to secure the appropriate bending seat in place. Then, rotate the mounting seat inside the mounting bracket to adjust the bending head of the corresponding specification to the processing position. Next, insert the limit pin into the limit hole on the outside of the mounting bracket and through it to the mounting seat to achieve precise positioning. This will drive the equipment to achieve bending and forming of irregular sheet metal parts through the coordinated action of the bending head and the bending seat. When it is necessary to change the bending head, simply pull out the limit pin to release the limitation on the mounting seat, and rotate the mounting seat to quickly switch to other specifications of bending heads. No complicated disassembly process is required, significantly reducing downtime for mold change. The traditional head change time of more than 20 minutes is reduced to 2-3 minutes, increasing equipment utilization by more than 40%. Daily production capacity for small batch and multi-specification orders can be increased by more than 30%, reducing labor costs and processing errors. Ordinary operators can complete the head change operation. The precise limit of the limit pin reduces the manual calibration process, reducing the bending defect rate by 5%-8%, enhancing production flexibility. The mounting base integrates multiple specifications of bending heads, which can quickly adapt to the processing of irregular parts with different curvatures and angles, and can efficiently respond to customized urgent orders. Secondly, first, align the insertion slots on both sides of the lower end of the bending seat with the insertion block on the upper end of the base plate and insert them. During the insertion process, the inner wall of the insertion slot of the bending seat will squeeze the snap-fit ​​connector in the outer circular groove of the snap-fit ​​block, causing the snap-fit ​​connector to compress the snap-fit ​​spring and retract into the circular groove. After the snap-fit ​​block is fully embedded in the insertion slot, the snap-fit ​​connector and the snap-fit ​​hole in the insertion slot are precisely aligned. The snap-fit ​​spring then rebounds and pushes the snap-fit ​​connector into the snap-fit ​​hole, realizing the quick positioning and stable locking of the bending seat and the base plate. This greatly improves the bending seat replacement efficiency, eliminates the tedious process of traditional bolt tightening and disassembly calibration, and reduces the time for a single replacement to less than 1 minute. It is suitable for the rapid changeover needs of bending various specifications of irregular parts, reduces equipment downtime, and improves the overall processing efficiency of the production line. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the installation component of this utility model; Figure 3 This is a side view of the structure of this utility model; Figure 4 This is a schematic diagram of the structure of the bending seat of this utility model.

[0014] Reference numerals: 1. Base plate; 2. Top plate; 3. Mounting bracket; 4. Mounting base; 5. Bending head; 6. Limiting insertion hole; 7. Limiting pin; 8. Mounting assembly; 81. Insertion groove; 82. Snap-fit ​​hole; 83. Insertion block; 84. Circular groove; 85. Snap-fit ​​spring; 86. Snap-fit ​​connector; 9. Bending seat; 10. Fixed guide seat; 11. Guide insertion hole; 12. Guide insertion rod; 13. Connecting ring; 14. Fixed screw hole; 15. Fixed screw; 16. Mounting edge; 17. Hidden groove; 18. Mounting through hole; 19. Release spring; 20. Pressing plate; 21. Release head. Detailed Implementation

[0015] In the description of this utility model, it should be noted that the directional terms such as "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0016] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" or "a number" means two or more, unless otherwise explicitly specified.

[0017] Example refer to Figures 1 to 4 This embodiment of an irregular bending machine includes a base plate 1, an upper plate 2 inserted into the upper end of the base plate 1, a mounting bracket 3 fixedly connected to the lower end of the upper plate 2, mounting seats 4 rotatably connected to the inner side of the mounting bracket 3, and multiple bending heads 5 fixedly connected to the outer side of the mounting seats 4. A limit insertion hole 6 is opened on the outer side of the mounting bracket 3, and a limit pin 7 is inserted into the inner side of the limit insertion hole 6. The limit pin 7 passes through the limit insertion hole 6 and is limitedly inserted into the mounting seat 4. An installation component 8 is fixedly connected to the upper end of the base plate 1, and a bending seat 9 is snapped onto the upper end of the base plate 1 through the installation component 8.

[0018] refer to Figure 1 , Figure 2 and Figure 4The mounting component 8 includes plug-in blocks 83 fixedly connected to both sides of the upper end of the base plate 1. The lower end of the bending seat 9 has plug-in slots 81 on both sides. A plug-in hole is formed on one side of the inner side of each plug-in slot 81. The plug-in slots 81 and plug-in blocks 83 are plugged into each other. Circular grooves 84 are formed on the outer side of each plug-in block 83. A snap-fit ​​spring 85 is fixedly connected inside each circular groove 84. A snap-fit ​​connector 86 is fixedly connected to the other end of each snap-fit ​​spring 85. The snap-fit ​​connector 86 snaps into the snap-fit ​​hole 82. First, the plug-in slots on both sides of the lower end of the bending seat 9... Insert the 81 into the upper end of the base plate 1 with the plug block 83. During the insertion process, the inner wall of the plug groove 81 of the bending seat 9 will squeeze the snap connector 86 in the outer circular groove 84 of the plug block 83, so that the snap connector 86 compresses the snap spring 85 and retracts into the circular groove 84. When the plug block 83 is fully embedded in the plug groove 81, the snap connector 86 is precisely aligned with the snap hole 82 in the plug groove 81. The snap spring 85 then rebounds and pushes the snap connector 86 into the snap hole 82, realizing the rapid positioning and stable locking of the bending seat 9 and the base plate 1.

[0019] refer to Figure 4 Both sides of the bending seat 9 are fixedly connected to release springs 19 on both sides of the snap-fit ​​hole 82. The other end of the release spring 19 is fixedly connected to a pressing plate 20. The inner side of the pressing plate 20 is fixedly connected to a release head 21. The release head 21 is inserted into the snap-fit ​​hole 82. When it is necessary to disassemble the bending seat 9, the operator does not need to use any additional tools. He only needs to press the pressing plates 20 on both sides of the bending seat 9 at the same time. The pressing plates 20 will squeeze the release spring 19 inward to make it retract. At the same time, it will drive the release head 21 into the snap-fit ​​hole 82. The release head 21 will directly press the snap-fit ​​connector 86, forcing the snap-fit ​​connector 86 to overcome the elastic force of the snap-fit ​​spring 85 and retract into the circular groove 84 of the insertion block 83. This quickly releases the snap-fit ​​limit between the snap-fit ​​connector 86 and the snap-fit ​​hole 82. At this time, the insertion groove 81 at the lower end of the bending seat 9 can be separated from the insertion block 83 of the base plate 1, and the bending seat 9 can be disassembled.

[0020] refer to Figure 1 The upper plate 2 is fixedly connected to a connecting ring 13. The outer surface of the connecting ring 13 is provided with multiple fixing screw holes 14. The fixing screw holes 14 are threaded with fixing screws 15. The upper plate 2 is fixedly connected to the hydraulic equipment through the fixing screws 15. During installation, the connecting ring 13 is first aligned with the preset connection position of the power output end of the hydraulic equipment, so that the multiple fixing screw holes 14 on the outer surface of the connecting ring 13 are precisely aligned with the corresponding reserved screw holes on the hydraulic equipment. Then, the fixing screws 15 are screwed into the fixing screw holes 14 one by one and tightened. With the help of the self-locking and locking action of the threaded connection, the upper plate 2 and the hydraulic equipment are rigidly fixed, ensuring that the connection between the two is not loose or displaced.

[0021] refer to Figure 2The base plate 1 is fixedly connected to the outer side of each mounting edge 16. The upper end of each mounting edge 16 is provided with a hidden groove 17. The inside of each hidden groove 17 is provided with a mounting through hole 18. A mounting screw is inserted into the mounting through hole 18. The base plate 1 is fixedly connected to the base layer by the mounting screw. During installation, the base plate 1 is first placed on the pre-installed base layer, so that the mounting through hole 18 in the hidden groove 17 on the mounting edge 16 is precisely aligned with the reserved screw hole of the base layer. Then, the mounting screw is inserted through the mounting through hole 18 inside the hidden groove 17 and screwed into the screw hole of the base layer. The self-locking characteristic of the threaded connection completes the rigid fixation of the base plate 1 to the base layer.

[0022] refer to Figure 1 The upper end of the base plate 1 and the lower end of the upper plate 2 are both fixedly connected to fixed guide seats 10. Guide holes 11 are opened on opposite sides of the fixed guide seats 10, and guide rods 12 are inserted into the guide holes 11. The fixed guide seats 10 at the upper end of the base plate 1 and the lower end of the upper plate 2 provide symmetrical mounting carriers for the guide structure. During the equipment assembly stage, the guide rods 12 are first inserted into the guide holes 11 of the fixed guide seats 10 on both sides, so that the base plate 1 and the upper plate 2 form a longitudinal guide connection through the guide rods 12, realizing the initial accurate positioning of their relative positions, avoiding lateral misalignment between the upper plate 2 and the base plate 1, and laying the foundation for the subsequent alignment and calibration of the bending components.

[0023] Operating principle and advantages: First, the base plate 1 is firmly anchored to the base layer using the mounting screws in the hidden groove 17 of the outer mounting edge 16. Then, the connecting ring 13 at the upper end of the upper plate 2 is rigidly connected to the hydraulic equipment using fixing screws 15. At the same time, the guide rod 12 is inserted into the guide insertion hole 11 of the fixed guide seat 10 of the base plate 1 and the upper plate 2 to form a longitudinal limit. Then, the insertion groove 81 at the lower end of the bending seat 9 is aligned with the insertion block 83 of the base plate 1 and inserted. The locking spring 85 inside the insertion block 83 pushes the locking connector 86 into the locking hole 82 to complete the locking. The release springs 19 on both sides of the bending seat 9 drive the release head 21 to abut against the locking connector 86. In the spare position, rotate the inner mounting base 4 of the mounting bracket 3 to adjust the matching bending head 5 to the working position, insert the limit pin 7 to lock the mounting base 4, and after starting the hydraulic equipment, the power is transmitted to the upper plate 2 through the connecting ring 13. The upper plate 2 drives the bending head 5 to descend vertically along the trajectory of the guide rod 12, and cooperates with the bending seat 9 to complete the bending of the irregular sheet metal parts. When the bending seat 9 needs to be replaced, press the pressing plates 20 on both sides to compress the release spring 19, so that the release head 21 pushes back the locking connector 86 to release the limit and can be removed. To replace the bending head 5, pull out the limit pin 7 and rotate the mounting base 4 to switch specifications. The overall process takes into account both bending accuracy and ease of changeover.

[0024] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. An irregular-shaped bending machine, characterized in that: The device includes a base plate, an upper plate inserted into the upper end of the base plate, a mounting bracket fixedly connected to the lower end of the upper plate, mounting seats rotatably connected to the inner side of each mounting bracket, and multiple bending heads fixedly connected to the outer side of each mounting seat. Limiting holes are provided on the outer side of the mounting bracket, and limiting pins are inserted into the interior of the limiting holes. The limiting pins pass through the limiting holes and are engaged with the mounting seats for limiting insertion. An installation assembly is fixedly connected to the upper end of the base plate, and a bending seat is snapped onto the upper end of the base plate via the installation assembly.

2. The irregular-shaped bending machine according to claim 1, characterized in that: The mounting assembly includes plug-in blocks fixedly connected to both sides of the upper end of the base plate. The lower end of the bending seat has plug-in slots on both sides, and a plug-in hole is provided on one side of the inner side of the plug-in slot. The plug-in slot and the plug-in block are plugged into each other.

3. The irregular-shaped bending machine according to claim 2, characterized in that: The outer side of each plug block is provided with a circular groove, and a snap-fit ​​spring is fixedly connected inside each circular groove. The other end of each snap-fit ​​spring is fixedly connected to a snap-fit ​​connector, and the snap-fit ​​connector and the snap-fit ​​hole snap-fit ​​into each other.

4. The irregular-shaped bending machine according to claim 3, characterized in that: Both sides of the bending seat are fixedly connected to release springs on both sides of the snap-fit ​​hole. The other end of the release spring is fixedly connected to a pressing plate. The inner side of the pressing plate is fixedly connected to a release head, and the release head is inserted into the snap-fit ​​hole.

5. The irregular-shaped bending machine according to claim 1, characterized in that: The upper end of the upper plate is fixedly connected to a connecting ring. The outer surface of the connecting ring is provided with multiple fixing screw holes. The fixing screw holes are threaded with fixing screws. The upper plate is fixedly connected to the hydraulic equipment by fixing screws.

6. The irregular-shaped bending machine according to claim 1, characterized in that: The outer side of the base plate is fixedly connected with an installation edge, and the upper end of the installation edge is provided with a hidden groove. The inside of the hidden groove is provided with an installation through hole, and an installation screw is inserted into the installation through hole. The base plate is fixedly connected to the base layer by the installation screw.

7. The irregular-shaped bending machine according to claim 1, characterized in that: The upper end of the base plate and the lower end of the upper plate are both fixedly connected to fixed guide seats. Guide holes are opened on opposite sides of the fixed guide seats, and guide rods are inserted into the guide holes.

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