A local bending mechanism capable of performing

Abstract

The present invention discloses a local bending mechanism, which includes a local bending slide rail, a left local bending component and a right local bending component. The left local bending component and the right local bending component are slidably mounted on the local bending slide rail and symmetrically arranged at both ends of the lower tool of the bending machine; both the left local bending component and the right local bending component are provided with a local bending tool group and a tool selection cylinder; the left local bending component includes a left mounting frame and a left tool driving mechanism; the right local bending component includes a right mounting frame and a right tool driving mechanism; the local bending tool group is formed by connecting a plurality of local bending tools into a whole through a pin mechanism, and the tool selection cylinder is mounted on the left mounting frame and the right mounting frame. The automatic bending machine with the added local bending mechanism can well solve the bending problem of products that are bent at both ends but not in the middle, enabling the automatic bending machine to adapt to more products.

Description

Technical Field

[0001] The present invention relates to the technical field of bending machines, and more specifically, to a local bending mechanism capable of performing local bending. Background Art

[0002] A numerically controlled bending machine uses the equipped dies (general or special dies or tools) to bend cold metal sheets into workpieces with various geometric cross-sectional shapes. It is a sheet metal forming machine designed for cold-rolled sheet metal processing and is widely used in the sheet metal bending processing of industries such as automotive, aircraft manufacturing, light industry, shipbuilding, container, elevator, and railway vehicles.

[0003] In the existing automatic bending machine, the length of the bending tool is invariable and is mostly the same as the maximum hemming length. When both ends of the product need to be bent while the middle part does not need to be bent, then the product cannot be bent on the automatic bending machine, making the operation of the bending machine have certain limitations.

[0004] Therefore, how to provide a local bending mechanism is an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the present invention provides a local bending mechanism capable of performing local bending to at least solve one of the problems raised in the above background art section.

[0006] To achieve the above solution, the present invention adopts the following technical solutions:

[0007] A local bending mechanism capable of performing local bending includes a local bending slide rail, a left local bending component, and a right local bending component. The left local bending component and the right local bending component are slidably installed on the local bending slide rail and are symmetrically arranged at both ends of the lower tool of the bending machine;

[0008] Both the left local bending component and the right local bending component are provided with a local bending tool group and a tool selection cylinder;

[0009] The left local bending component includes a left mounting frame and a left tool driving mechanism. The left tool driving mechanism is installed on the left mounting frame. The left tool driving mechanism includes a left driving motor, a left synchronous belt, a left driving synchronous belt pulley, a left driven synchronous belt pulley, a first guide wheel, and a second guide wheel;

[0010] The right local bending component includes a right mounting frame and a right tool driving mechanism. The right tool driving mechanism is installed on the right mounting frame. The right tool driving mechanism includes a right driving motor, a right synchronous belt, a right driving synchronous belt pulley, a right driven synchronous belt pulley, a third guide wheel, and a fourth guide wheel;

[0011] The left drive motor is in transmission connection with the left driving synchronous pulley. The left synchronous belt is sleeved on the left driving synchronous pulley and the right driven synchronous pulley. The left synchronous belt is connected to the partial bending cutter group close to the left partial bending assembly, and the left synchronous belt is guided by the first guide pulley and the fourth guide pulley;

[0012] The right drive motor is in transmission connection with the right driving synchronous pulley. The right synchronous belt is sleeved on the right driving synchronous pulley and the left driven synchronous pulley. The right synchronous belt is connected to the partial bending cutter group close to the right partial bending assembly, and the right synchronous belt is guided by the second guide pulley and the third guide pulley;

[0013] The partial bending cutter group is integrally formed by detachably connecting a plurality of partial bending cutters through a pin mechanism. There are two cutter selection cylinders, which are respectively installed on the left mounting frame and the right mounting frame, and are respectively located on one side of the two partial bending cutter groups.

[0014] Preferably, in the above-mentioned partial bending mechanism, the pin mechanism includes a locking wheel and a spring pin. The locking wheel is fixed on one side of the partial bending cutter through a stud. A locking wheel hole is formed on the other side of the partial bending cutter, and a spring pin mounting hole is formed above the locking wheel hole, and the upper part of the locking wheel hole communicates with the spring pin mounting hole; The spring pin is installed in the spring pin mounting hole, and the snap ring on the spring pin can reciprocate along the axis of the spring pin mounting hole;

[0015] The locking wheel extends into the locking wheel hole of the adjacent partial bending cutter and is locked by the snap ring of the spring pin, so as to realize the locking between adjacent partial bending cutters.

[0016] Preferably, in the above-mentioned partial bending mechanism, the acting end of the spring pin extends out of the partial bending cutter, and a pressing block capable of cooperating with the acting end is arranged on the piston rod of the cutter selection cylinder.

[0017] Preferably, in the above-mentioned partial bending mechanism, the partial bending cutter is provided with a mounting groove matching the lower cutter of the bending machine, and the mounting groove can be clamped into the convex strip at the top of the lower cutter of the bending machine.

[0018] Preferably, in the above-mentioned partial bending mechanism, one of the partial bending cutters in each partial bending cutter group is respectively slidably connected to the partial bending slide rail through a slider.

[0019] As can be seen from the above technical solutions, compared with the prior art, the present invention discloses an automatic bending machine capable of performing a local bending mechanism, and the automatic bending machine with an increased local bending mechanism can well solve the bending problem of products with both ends bent and the middle not bent, enabling the automatic bending machine to adapt to more products and better reflecting the flexibility of the automatic bending machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the provided drawings without creative efforts.

[0021] Figure 1-2 The drawings are schematic three-dimensional structure diagrams of different angles of the present invention;

[0022] Figure 3 The drawings are the top views of the present invention;

[0023] Figure 4 The drawings are Figure 1 a hollowing schematic diagram of part A in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0025] The embodiment of the present invention discloses a local bending mechanism capable of performing local bending, including a local bending slide rail 1, a left local bending assembly 2 and a right local bending assembly 3. The left local bending assembly 2 and the right local bending assembly 3 are slidably installed on the local bending slide rail 1 and are symmetrically arranged at both ends of the lower tool 4 of the bending machine;

[0026] Both the left local bending assembly 2 and the right local bending assembly 3 are provided with a local bending tool group 5 and a tool selection cylinder 6;

[0027] The left local bending assembly 2 includes a left mounting frame 7 and a left tool driving mechanism. The left tool driving mechanism is installed on the left mounting frame 7. The left tool driving mechanism includes a left driving motor 8, a left synchronous belt 9, a left driving synchronous pulley 10, a left driven synchronous pulley 11, a first guide wheel 12 and a second guide wheel 13;

[0028] The right local bending assembly 3 includes a right mounting bracket 14 and a right tool driving mechanism. The right tool driving mechanism is mounted on the right mounting bracket 14. The right tool driving mechanism includes a right driving motor 15, a right synchronous belt 16, a right driving synchronous pulley 17, a right driven synchronous pulley 18, a third guide pulley 19, and a fourth guide pulley 20;

[0029] The left driving motor 8 is drivingly connected to the left driving synchronous pulley 10. The left synchronous belt 9 is sleeved on the left driving synchronous pulley 10 and the right driven synchronous pulley 18. The left synchronous belt 9 is connected to the local bending tool group 5 close to the left local bending assembly 2, and the left synchronous belt 9 is guided by the first guide pulley 12 and the fourth guide pulley 20;

[0030] The right driving motor 15 is drivingly connected to the right driving synchronous pulley 17. The right synchronous belt 16 is sleeved on the right driving synchronous pulley 17 and the left driven synchronous pulley 11. The right synchronous belt 16 is connected to the local bending tool group 5 close to the right local bending assembly 3, and the right synchronous belt 16 is guided by the second guide pulley 13 and the third guide pulley 19;

[0031] The local bending tool group 5 is integrally formed by detachably connecting a plurality of local bending tools 21 through a snap mechanism. There are two tool selection cylinders 6, which are respectively mounted on the left mounting bracket 7 and the right mounting bracket 14, and are respectively located on one side of the two local bending tool groups 5.

[0032] To further optimize the above technical solution, the snap mechanism includes a snap wheel 22 and a spring snap pin 23. The snap wheel 22 is fixed on one side of the local bending tool 21 through a stud. On the other side of the local bending tool 21, a snap wheel hole is opened, and a spring snap pin mounting hole is opened above the snap wheel hole, and the snap wheel hole communicates with the spring snap pin mounting hole above; the spring snap pin 23 is installed in the spring snap pin mounting hole, and the snap ring 24 on the spring snap pin 23 can reciprocate along the axis of the spring snap pin mounting hole;

[0033] The snap wheel 22 extends into the snap wheel hole of the adjacent local bending tool 21 and is locked by the snap ring 24 of the spring snap pin 23 to achieve locking between the adjacent local bending tools 21.

[0034] To further optimize the above technical solution, the acting end of the spring snap pin 23 extends out of the local bending tool 21, and a pressing block capable of cooperating with the acting end is provided on the piston rod of the tool selection cylinder 6.

[0035] To further optimize the above technical solution, the local bending tool 21 is provided with a mounting groove matching the lower tool 4 of the bending machine, and the mounting groove can be clamped into the rib on the top of the lower tool 4 of the bending machine.

[0036] To further optimize the above technical solution, one of the local bending tool groups 5, each local bending tool 21 is slidably connected to the local bending slide rail 1 through a slider respectively.

[0037] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same and similar parts among the various embodiments, reference can be made to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple. For the relevant parts, reference can be made to the description in the method part.

[0038] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A local bending mechanism capable of performing, characterized in that, It includes a local bending slide rail, a left local bending component and a right local bending component. The left local bending component and the right local bending component are slidably installed on the local bending slide rail and symmetrically arranged at both ends of the lower tool of the bending machine. Both the left local bending component and the right local bending component are provided with a local bending tool group and a tool selection cylinder. The left local bending component includes a left mounting frame and a left tool driving mechanism. The left tool driving mechanism is installed on the left mounting frame. The left tool driving mechanism includes a left driving motor, a left synchronous belt, a left driving synchronous pulley, a left driven synchronous pulley, a first guide pulley and a second guide pulley. The right local bending component includes a right mounting frame and a right tool driving mechanism. The right tool driving mechanism is installed on the right mounting frame. The right tool driving mechanism includes a right driving motor, a right synchronous belt, a right driving synchronous pulley, a right driven synchronous pulley, a third guide pulley and a fourth guide pulley. The left driving motor is in transmission connection with the left driving synchronous pulley. The left synchronous belt is sleeved on the left driving synchronous pulley and the right driven synchronous pulley. The left synchronous belt is connected to the local bending tool group close to the left local bending component, and the left synchronous belt is guided by the first guide pulley and the fourth guide pulley. The right driving motor is in transmission connection with the right driving synchronous pulley. The right synchronous belt is sleeved on the right driving synchronous pulley and the left driven synchronous pulley. The right synchronous belt is connected to the local bending tool group close to the right local bending component, and the right synchronous belt is guided by the second guide pulley and the third guide pulley. The local bending tool group is detachably connected into a whole by a plurality of local bending tools through a pin mechanism. There are two tool selection cylinders, which are respectively installed on the left mounting frame and the right mounting frame and are respectively located on one side of the two local bending tool groups. The pin mechanism includes a pin wheel and a spring pin. The pin wheel is fixed on one side of the local bending tool through a stud. A pin wheel hole is formed on the other side of the local bending tool, and a spring pin mounting hole is formed above the pin wheel hole. The pin wheel hole communicates with the spring pin mounting hole above. The spring pin is installed in the spring pin mounting hole, and the snap ring on the spring pin can reciprocate along the axis of the spring pin mounting hole. The pin wheel extends into the pin wheel hole of the adjacent local bending tool and is locked by the snap ring of the spring pin to realize the locking between adjacent local bending tools. The acting end of the spring pin extends out of the local bending tool, and a pressing block capable of cooperating with the acting end is arranged on the piston rod of the tool selection cylinder. One of the local bending tools in each local bending tool group is slidably connected to the local bending slide rail through a slider.

Images