Bending machine with precise angle adjusting function

By using a guide groove, positioning hole, positioning pin, and screw nut structure, combined with a torsion spring hinge, the problems of inaccurate angle adjustment and unstable clamping plate fixation in traditional bending machines are solved, achieving precise angle adjustment and stability, and improving processing accuracy and efficiency.

CN223932407UActive Publication Date: 2026-02-24MAANSHAN FANGWEI PRECISION BLADE MOULD CO LTD
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Patent Information

Application Number
CN202520586258.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-31
Publication Date
2026-02-24
Estimated Expiration
2035-03-31

AI Technical Summary

Technical Problem

Traditional bending machines are not precise enough in terms of angle adjustment, and the clamping plate position is not stable, which affects the processing accuracy and product quality.

Method used

It adopts a structure of guide groove, positioning hole, positioning pin and screw nut, combined with torsion spring hinge, to achieve precise adjustment and stability of the clamping plate angle, and to perform precise bending by driving the bending head with a cylinder.

Benefits of technology

It enables precise adjustment and stabilization of the clamping plate angle, ensuring the accuracy of the bending angle and improving processing precision and work efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a bending machine with an accurate angle adjusting function, and belongs to the technical field of bending machines. Comprising a bending table, a top frame is arranged above the bending table, an air cylinder is mounted at the upper end of the top frame, a mounting seat is arranged on a push rod of the air cylinder, a detachable bending head is arranged on the mounting seat, and a fixed supporting seat and a detachable supporting seat are arranged at the upper end of the bending table; a first clamping plate and a second clamping plate are arranged between the fixed supporting base and the detachable supporting base, and the included angle between the first clamping plate and the second clamping plate ranges from 0 degree to 180 degrees. According to the bending machine with the precise angle adjusting function, the included angle between a first clamping plate and a second clamping plate can be precisely adjusted through movement of a screw rod in a guide sliding groove, the positions of the adjusted clamping plates are locked through nuts, it is ensured that the clamping plates cannot be loosened or deviated in the using process, and through cooperation of a positioning pin, a positioning hole and a positioning groove, the clamping plates cannot be loosened or deviated; the fixing angle can be further stabilized, and it is ensured that the bending angle is always accurate.
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Description

Technical Field

[0001] This utility model relates to the field of bending machine technology, specifically a bending machine with precise angle adjustment function. Background Technology

[0002] Traditional bending machines have some shortcomings in angle adjustment. For example, the angle adjustment of some bending machines is not precise enough, resulting in large angle errors in the processed parts and affecting product quality. Moreover, after the angle is adjusted, the clamping plate of some bending machines is not securely fixed, and it is prone to loosening or shifting during use, which further affects the accuracy of the bending angle. Utility Model Content

[0003] The purpose of this invention is to provide a bending machine with precise angle adjustment function to solve the problem of insufficient angle adjustment in existing bending machines.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a bending machine with precise angle adjustment function, including a bending table, a top frame above the bending table, a cylinder mounted on the upper end of the top frame, a mounting seat on the push rod of the cylinder, a detachable bending head on the mounting seat, a fixed support seat and a detachable support seat respectively on the upper end of the bending table, a first clamping plate and a second clamping plate between the fixed support seat and the detachable support seat, and the included angle between the first clamping plate and the second clamping plate is within 0°~180°, the first clamping plate and the second clamping plate are rotatably connected to the support seat through a rotating shaft, a guide groove is provided inside the support seat, and the first clamping plate and the second clamping plate move along a circumferential trajectory within the guide groove with their rotating shaft as the center.

[0005] Preferably, the support base is further provided with a number of positioning holes. The positioning holes are distributed at equal angles with the center line of the rotating shaft as the axis of rotation. The center lines of each positioning hole are located on the same circumference and are evenly spaced around the axis.

[0006] Preferably, the first clamping plate and the second clamping plate have a positioning groove on one side opposite to the positioning hole, and the positioning groove has a positioning pin inserted through the positioning hole.

[0007] Preferably, both sides of the first clamping plate and the second clamping plate are provided with screws, and one end of the screws passes through and extends to the outside of the guide groove.

[0008] Preferably, a nut is threaded onto the outer wall of the screw.

[0009] Preferably, the first clamping plate and the second clamping plate are respectively provided with torsion spring hinges on one side of the bending table surface. The torsion spring hinge consists of two metal plates connected by a shaft, and the spring is tightly installed around the shaft.

[0010] Preferably, one of the leaves of the torsion spring hinge is fixedly connected to the bending table, and the other leaf is magnetically connected to the first clamping plate and the second clamping plate through a magnetic layer provided on the outer wall.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model discloses a bending machine with precise angle adjustment function. Through the movement of the screw in the guide groove, the included angle between the first clamping plate and the second clamping plate can be precisely adjusted. The clamping plate position after adjustment is locked by the nut to ensure that the clamping plate will not loosen or shift during use. Through the cooperation of the positioning pin, positioning hole and positioning groove, the angle can be further stabilized and fixed to ensure that the bending angle is always accurate.

[0013] 2. This utility model discloses a bending machine with precise angle adjustment function. By setting a torsion spring hinge, it can provide appropriate buffer when adjusting the angle of the clamping plate, ensuring a smoother adjustment process. The torsion spring hinge is magnetically connected to the clamping plate, making the replacement and adjustment of the clamping plate more convenient and improving work efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the bending machine structure with precise angle adjustment function according to this utility model. Figure 1 ;

[0015] Figure 2 This is a schematic diagram of the bending machine structure with precise angle adjustment function according to this utility model. Figure 1 Enlarged view of Part A;

[0016] Figure 3 This is a schematic diagram of the bending machine structure with precise angle adjustment function according to this utility model. Figure 3 ;

[0017] Figure 4 This is a schematic diagram of the bending machine structure with precise angle adjustment function according to this utility model. Figure 4 .

[0018] In the diagram: 1. Bending table; 2. Top frame; 3. Cylinder; 4. Bending head; 5. First clamping plate; 6. Second clamping plate; 7. Support base; 8. Guide slide; 9. Positioning hole; 10. Positioning pin; 11. Rotating shaft; 12. Screw; 13. Nut; 14. Positioning groove; 15. Torsion spring hinge. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4 This embodiment provides the following technical solution:

[0021] A bending machine with precise angle adjustment function includes a bending table 1, a top frame 2 above the bending table 1, a cylinder 3 mounted on the upper end of the top frame 2, a mounting seat on the push rod of the cylinder 3, a detachable bending head 4 mounted on the mounting seat, a fixed support seat 7 and a detachable support seat 7 respectively on the upper end of the bending table 1, the detachable support seat 7 facilitates the assembly and disassembly of the clamping plates, a first clamping plate 5 and a second clamping plate 6 are provided between the fixed support seat 7 and the detachable support seat 7, and the included angle between the first clamping plate 5 and the second clamping plate 6 is within 0°~180°, the first clamping plate 5 and the second clamping plate 6 are rotatably connected to the support seat 7 through a rotating shaft 11, a guide groove 8 is provided inside the support seat 7, the first clamping plate 5 and the second clamping plate 6 move along a circumferential trajectory within the guide groove 8 with their rotating shaft 11 as the center.

[0022] Specifically, the reciprocating motion of the push rod of cylinder 3 drives the bending head 4 to move up and down. By adjusting the angle between the first clamping plate 5 and the second clamping plate 6, different bending angles can be set according to requirements. The bending head 4 is detachable and replaceable so that different bending heads 4 can be matched according to different bending angles. The first clamping plate 5 and the second clamping plate 6 are respectively connected to the support base 7 through the rotating shaft 11. The rotating shaft 11 serves as the rotation center, allowing the first clamping plate 5 and the second clamping plate 6 to rotate freely within a certain range. The guide groove 8 ensures that the first clamping plate 5 and the second clamping plate 6 move precisely along a predetermined circumferential trajectory during rotation. The rotation of the first clamping plate 5 and the second clamping plate 6 is effectively guided by the guide groove 8, ensuring that the clamping plates do not deviate during movement, thereby achieving precise adjustment of the bending angle.

[0023] The support base 7 is also provided with a number of positioning holes 9. The positioning holes 9 are distributed at equal angles with the center line of the rotating shaft 11 as the axis of rotation. The center lines of each positioning hole 9 are located on the same circumference and are evenly spaced around the axis. The first clamping plate 5 and the second clamping plate 6 are provided with positioning grooves 14 on the side opposite to the positioning holes 9. The positioning grooves 14 are provided with positioning pins 10 that are inserted through the positioning holes 9.

[0024] Specifically, by passing the positioning pin 10 through the positioning hole 9 into the positioning groove 14, the angle position of the first clamping plate 5 and the second clamping plate 6 can be precisely fixed, ensuring that the clamping plates will not deviate from the adjusted angle during the bending process, thereby achieving precise bending operation.

[0025] Both sides of the first clamping plate 5 and the second clamping plate 6 are provided with screws 12, and one end of the screw 12 passes through and extends to the outside of the guide groove 8. A nut 13 is threadedly connected to the outer wall of the screw 12.

[0026] Specifically, the first clamping plate 5 and the second clamping plate 6 are angled within the guide groove 8 by means of the screw 12. After adjustment, they are locked by the nut 13 to ensure the stability of the clamping plate position. The screw 12 and the nut 13 have a simple structure and are easy to maintain, and the operator can easily adjust and replace them.

[0027] The first clamping plate 5 and the second clamping plate 6 are respectively provided with torsion spring hinges 15 on one side of the bending table 1. The torsion spring hinge 15 is composed of two metal plates connected by a shaft. The spring is tightly installed around the shaft. One of the plates of the torsion spring hinge 15 is fixedly connected to the bending table 1, and the other plate is magnetically connected to the first clamping plate 5 and the second clamping plate 6 through a magnetic layer provided on the outer wall.

[0028] Specifically, the torsion spring hinge 15 provides appropriate cushioning during the clamp adjustment process, making the clamp adjustment more stable and precise. The clamp and the torsion spring hinge 15 are magnetically connected, making the clamp replacement process simpler and faster.

[0029] Working principle: Before bending, the angle of the clamping plates is adjusted. The required bending angle is achieved by adjusting the angle between the first clamping plate 5 and the second clamping plate 6 via the movement of the screw 12 within the guide groove 8. The torsion spring hinge 15 provides appropriate buffering during the clamping plate adjustment process. After adjustment, the clamping plate is locked by the nut 13, and the positioning pin 10 passes through the positioning hole 9 and enters the positioning groove 14, precisely fixing the angular position of the first clamping plate 5 and the second clamping plate 6, ensuring that the clamping plates do not deviate from the adjusted angle during bending. Then, different bending heads 4 are matched according to the adjusted bending angle. When the push rod of the cylinder 3 reciprocates, the bending head 4 moves up and down accordingly, thereby bending the workpiece placed on the bending table 1.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bending machine with precise angle adjustment function, comprising a bending table (1), a top frame (2) above the bending table (1), a cylinder (3) mounted on the upper end of the top frame (2), a mounting seat on the push rod of the cylinder (3), and a detachable bending head (4) mounted on the mounting seat, characterized in that: The bending table (1) is provided with a fixed support seat (7) and a detachable support seat (7) at its upper end. A first clamping plate (5) and a second clamping plate (6) are provided between the fixed support seat (7) and the detachable support seat (7), and the included angle between the first clamping plate (5) and the second clamping plate (6) is within 0°~180°. The first clamping plate (5) and the second clamping plate (6) are rotatably connected to the support seat (7) through a rotating shaft (11). A guide groove (8) is provided inside the support seat (7). The first clamping plate (5) and the second clamping plate (6) move along a circular trajectory in the guide groove (8) with their rotating shaft (11) as the center.

2. A bending machine with precise angle adjustment function according to claim 1, characterized in that: The support base (7) is also provided with a number of positioning holes (9). The positioning holes (9) are distributed at equal angles with the center line of the rotating shaft (11) as the axis of rotation. The center lines of each positioning hole (9) are located on the same circumference and are evenly spaced around the axis.

3. A bending machine with precise angle adjustment function according to claim 2, characterized in that: The first clamping plate (5) and the second clamping plate (6) have a positioning groove (14) on one side opposite to the positioning hole (9), and a positioning pin (10) inserted through the positioning hole (9) is provided inside the positioning groove (14).

4. A bending machine with precise angle adjustment function according to claim 1, characterized in that: Both sides of the first clamping plate (5) and the second clamping plate (6) are provided with screws (12), and one end of the screws (12) passes through and extends to the outside of the guide groove (8).

5. A bending machine with precise angle adjustment function according to claim 4, characterized in that: A nut (13) is threaded onto the outer wall of the screw (12).

6. A bending machine with precise angle adjustment function according to claim 1, characterized in that: The first clamping plate (5) and the second clamping plate (6) are respectively provided with torsion spring hinges (15) on one side of the bending table (1). The torsion spring hinges (15) are composed of two metal plates connected by a shaft, and the spring is tightly installed around the shaft.

7. A bending machine with precise angle adjustment function according to claim 6, characterized in that: One of the flaps of the torsion spring hinge (15) is fixedly connected to the bending table (1), and the other flap is magnetically connected to the first clamping plate (5) and the second clamping plate (6) through the magnetic layer provided on the outer wall.