A flat workpiece press bending device

Abstract

The utility model relates to plate processing technical field especially relates to a flat plate work piece bending device, including setting on the press bending female die of machine tool operation platform, the top surface of press bending female die places the flat plate work piece to be pressed bending, the top of flat plate work piece is provided with the press bending male die, the both sides of press bending male die are connected with the mounting seat of symmetrical arrangement, the outside of mounting seat all is provided with the cylinder connected with it, the bottom of mounting seat all is provided with through -hole, the telescopic link of cylinder passes through the through -hole and is arranged in the bottom of mounting seat, the protruding end of telescopic link all is connected with the clamping block, the utility model discloses through the clamping block clamping flat plate work piece, fixes its limit, makes flat plate work piece in the process of pressing bending, the middle line relative press bending male die middle line can not displace, is not easy to go out left and right press bending asymmetric situation to reach the effect that prevents the running, improves finished product processing quality.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal processing technology, and in particular to a flat workpiece bending device. Background Technology

[0002] Currently, some flat workpieces require bending during manufacturing. Existing flat workpieces have their inner surfaces ground before bending, and there are tolerance requirements for the height difference between the two sides after bending. The inner surface can only have normal deformation marks and will not be processed further; therefore, there cannot be any other scratches or poor pressure marks. The outer surface is ground in subsequent processes, but deep indentations that would lead to excessive grinding are not allowed. Before bending, the sheet metal needs to be fixed and limited. If the fixing and limiting are not done well, there is a risk of wobbling. Poor fixing of the flat workpiece results in angle deviations during bending, easily leading to asymmetrical bending on both sides, causing a decrease in the quality of the finished product and failing to meet the actual requirements for bent steel plates.

[0003] Application No. 201721920101.6 discloses a thick plate bending fixture, including a lower die base and an upper die. The upper surface of the lower die base has a symmetrical curved surface, and the center of the lower surface of the upper die is a forming surface that mates with the curved surface of the lower die base. Both sides of the forming surface are inclined surfaces extending from the forming surface to form a clamping surface. This clamping surface mates with the lower die base to clamp the two sides of the bent portion of the workpiece. However, this application lacks a dedicated fixing and positioning device for the plate material. During the bending process, there is a risk of angular wobble, leading to angle deviation and potentially causing asymmetry in the bending process, resulting in a decrease in the quality of the finished product. Utility Model Content

[0004] The purpose of this utility model is to provide a flat workpiece bending device. This device has a simple structure and is easy to operate. It is used to solve the problems of poor flat workpiece fixing effect in existing flat workpiece bending devices, angle deviation during bending, and asymmetry in bending from left to right, which leads to a decrease in the quality of the finished product after bending.

[0005] The objective of this utility model can be achieved using the following technical solutions: A flat workpiece bending device includes a bending die mounted on a machine tool operating table; a flat workpiece to be bent is placed on the top surface of the bending die; a bending punch is mounted above the flat workpiece; symmetrically arranged mounting seats are connected to both sides of the bending punch; a cylinder is mounted on the outer side of each mounting seat and connected thereto; a through hole is provided at the bottom of each mounting seat; the telescopic rod of each cylinder passes through the through hole and is inserted into the bottom of the mounting seat; a clamping block is connected to the extended end of each telescopic rod.

[0006] The clamping blocks extend via telescopic rods and can be attached to both sides of the flat workpiece for fixed positioning.

[0007] The bending punch, the flat workpiece, and the bending die are all positioned vertically in correspondence with each other.

[0008] The cylinder is controlled to operate via a pneumatic limit switch.

[0009] The clamping block is threadedly connected to the end of the telescopic rod.

[0010] The bending die has a groove inside.

[0011] Compared with the prior art, the beneficial effects of this utility model are: this device clamps the flat workpiece with clamping blocks and fixes and limits it, so that the center line of the flat workpiece cannot be displaced relative to the center line of the bending punch during the bending process, and it is not easy to cause asymmetry in the bending process, thereby achieving the effect of preventing movement and improving the quality of finished product processing. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a side view of the present invention.

[0014] Figure 3 This is a top view of the present invention.

[0015] In the diagram: 1. Bending die, 2. Flat workpiece, 3. Bending punch, 4. Mounting base, 5. Cylinder, 6. Through hole, 7. Telescopic rod, 8. Clamping block, 9. Groove. Detailed Implementation

[0016] The present invention will be described in conjunction with the accompanying drawings.

[0017] like Figures 1-3 A flat workpiece bending device is shown, comprising a bending die 1 mounted on a machine tool operating table; a groove 9 is provided inside the bending die 1; a flat workpiece 2 to be bent is placed on the top surface of the bending die 1; a bending punch 3 is provided above the flat workpiece 2; symmetrically arranged mounting seats 4 are connected to both sides of the bending punch 3, and the mounting seats 4 can move synchronously with the bending punch 3; cylinders 5 are provided on the outer side of each mounting seat 4 and connected thereto; through holes 6 are provided at the bottom of each mounting seat 4; the telescopic rods 7 of the cylinders 5 pass through the through holes 6 and are inserted into the bottom of the mounting seats 4; clamping blocks 8 are connected to the extended ends of the telescopic rods 7.

[0018] The clamping block 8 is threaded to the end of the telescopic rod 7. This threaded connection facilitates the replacement of the clamping block 8, making it suitable for flat workpieces 2 of different thicknesses, and enabling convenient and quick clamping and fixing. The clamping block 8 extends through the telescopic rod 7 and can be attached to both sides of the flat workpiece 2 for fixed positioning. The clamping block 8 is pushed by the cylinder 5 to extend the telescopic rod 7 and clamp the two sides of the flat workpiece 2 for fixed positioning, ensuring that the centerline of the flat workpiece 2 does not shift relative to the centerline of the bending punch 3 during the bending process, thus ensuring the bending quality. The bending punch 3 is vertically aligned with the centerlines of the flat workpiece 2 and the bending die 1. The cylinder 5 is controlled by a pneumatic limit switch.

[0019] In operation, this device uses a pneumatic limit switch to control the cylinder 5 to retract the telescopic rod 7. Before the bending punch 3 presses down on the flat workpiece 2, the left and right clamping blocks 8 are open. When the bending punch 3 presses down on the flat workpiece 2, the limit switch activates, extending the telescopic rod 7 and clamping the sides of the flat workpiece 2 with the left and right clamping blocks 8 at its ends. The rod then moves down synchronously with the bending punch 3 to bend the flat workpiece 1. When the bending punch 3 returns to its original position, the left and right clamping blocks 8 still clamp the flat workpiece 1 and simultaneously return to their original position. The limit switch then activates, and the cylinder 5 retracts the telescopic rod 7, releasing the left and right clamping blocks 8. After the bending punch 3 returns to its original position, the workpiece can be unloaded and the next work cycle can begin. This device clamps the flat workpiece 1 with the clamping blocks 8, fixing and limiting its movement. This prevents the centerline of the flat workpiece 1 from shifting relative to the centerline of the bending punch 3 during bending, reducing the likelihood of asymmetrical bending and thus preventing movement and improving the quality of the finished product.

[0020] The above detailed description further illustrates the purpose, technical solution, and beneficial effects of the utility model. It should be understood that the above description is only a specific embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the scope of protection of the present utility model.

Claims

1. A flat workpiece bending device, comprising a bending die (1) disposed on a machine tool operating table; characterized in that: The top surface of the bending die (1) is on which a flat workpiece (2) to be bent is placed; a bending punch (3) is provided above the flat workpiece (2); symmetrically arranged mounting seats (4) are connected to both sides of the bending punch (3); cylinders (5) are provided on the outer side of each mounting seat (4); through holes (6) are provided at the bottom of each mounting seat (4); the telescopic rod (7) of the cylinder (5) passes through the through hole (6) and is inserted into the bottom of the mounting seat (4); clamping blocks (8) are connected to the extended end of each telescopic rod (7).

2. The flat workpiece bending device according to claim 1, characterized in that: The clamping block (8) extends through the telescopic rod (7) and can be attached to both sides of the flat workpiece (2) for fixed positioning.

3. The flat workpiece bending device according to claim 1, characterized in that: The bending punch (3) is positioned vertically and vertically in correspondence with the center lines of the flat workpiece (2) and the bending die (1).

4. The flat workpiece bending device according to claim 1, characterized in that: The cylinder (5) is controlled by a pneumatic limit switch.

5. The flat workpiece bending device according to claim 1, characterized in that: The clamp (8) is threaded to the end of the telescopic rod (7).

6. The flat workpiece bending device according to claim 1, characterized in that: The bending die (1) has a groove (9) inside.

Images