Sheet metal bending machine with automatic feeding and discharging functions

Abstract

The utility model discloses an automatic feeding and discharging metal plate bending machine which comprises a workbench, a positioning material jacking mechanism, a bending mechanism and a sliding feeding and discharging mechanism, a support is fixedly arranged in the middle of the workbench, a hydraulic cylinder is fixedly arranged at the top of the support, a lifting plate is fixedly arranged at the telescopic end of the hydraulic cylinder, and connecting rods are symmetrically arranged on the lifting plate in a penetrating and sliding mode. The upper end of the connecting rod is fixedly sleeved with a first spring, the lower end of the connecting rod is fixedly provided with an ejector block, the lower end of the first spring is fixedly connected with the top of the lifting plate, and the bottom of the lifting plate is provided with a bending mechanism. The jacking block synchronously descends along with the lifting plate, limiting fine adjustment is conducted on a sheet metal part through the inclined face of the bottom of the jacking block, the sheet metal part and the punch are vertically aligned and positioned, meanwhile, the connecting rod is driven to slidably ascend when the punch is bent, and the first spring elastically slides to return after sheet metal is completed. And after the sheet metal is finished, the first electric telescopic rod extends out to drive the material stirring roller to rotate and move oppositely, so that the sheet metal part possibly clamped on the punch is stripped.

Description

Technical Field

[0001] The utility model relates to the technical field of sheet metal bending equipment, in particular to a sheet metal bending machine with automatic loading and unloading. Background Art

[0002] Sheet metal bending is a metal processing technology, mainly used to bend sheet metal materials at specific angles and shapes. Sheet metal bending is achieved by applying pressure to the sheet metal material using equipment such as a bending machine, causing plastic deformation at specific positions, thereby forming the required angles and shapes. During the bending process, the internal structure of the sheet metal material changes, with the outer layer being stretched and the inner layer being compressed;

[0003] In the utility model with the application number 202223431167.2, a sheet metal bending machine convenient for positioning is disclosed. By setting an adjustment fixing plate on the surface of the workbench at the top of the bending groove, and a number of fitting grooves are evenly opened on the surface of the adjustment fixing plate. Among them, a fitting block is provided at the bottom of the fixing block, and a fixing magnetic sheet is provided at the bottom of the inner cavity of the fitting groove. The fitting block is in fitting magnetic connection with the fitting groove, so as to facilitate adjusting the position of the positioning clamping plate according to the components to be bent actually required, greatly facilitating the positioning and processing of components of different sizes by the entire bending machine and effectively improving the practicability;

[0004] However, when bending in the above-mentioned sheet metal bending machine convenient for positioning, manual assistance is required for loading and unloading the stamping parts. When loading, manual assistance is required to adjust the position of the sheet metal parts for positioning, which poses potential safety hazards in processing, and the processing efficiency is easily affected by the loading and unloading speed. In the above-mentioned sheet metal bending machine convenient for positioning, the sheet metal parts are easily stuck in the bending groove or under the punch after being pressed and bent, and it is necessary to wait for the machine to stop before removing the sheet metal parts, which easily affects the sheet metal processing efficiency. Therefore, the utility model proposes a sheet metal bending machine with automatic loading and unloading to solve the problems existing in the prior art. Content of the Utility Model

[0005] Aiming at the above problems, the purpose of the utility model is to propose a sheet metal bending machine with automatic loading and unloading. The sheet metal bending machine with automatic loading and unloading uses the inclined surface at the bottom of the top block to perform limit fine adjustment on the sheet metal parts by following the synchronous descent of the lifting plate, so that the sheet metal parts are aligned vertically with the punch for positioning. At the same time, when the punch bends, it drives the connecting rod to slide and rise, and after the sheet metal is completed, it elastically slides back to its original position by the first spring, achieving the effect of automatic positioning. After the sheet metal is completed, the first electric telescopic rod extends to drive the dialing rollers to rotate and move towards each other to peel off the sheet metal parts that may be stuck on the punch, solving the problem of requiring shutdown for maintenance when there is material jamming on the punch.

[0006] To achieve the object of the present utility model, the present utility model is realized through the following technical solutions: A sheet metal bending machine with automatic loading and unloading, including a workbench, a positioning and ejecting mechanism, a bending mechanism, and a sliding loading and unloading mechanism. The positioning and ejecting mechanism includes a bracket, a hydraulic cylinder, a lifting plate, a connecting rod, a first spring, and a top block. A bracket is fixedly provided in the middle of the workbench, a hydraulic cylinder is fixedly provided at the top of the bracket, the telescopic end of the hydraulic cylinder is fixedly provided with a lifting plate, the connecting rods are symmetrically and slidably penetrated through the lifting plate, a first spring is fixedly sleeved on the upper end of the connecting rod, a top block is fixedly provided at the lower end of the connecting rod, the lower end of the first spring is fixedly connected to the top of the lifting plate, a bending mechanism is provided at the bottom of the lifting plate, and a sliding loading and unloading mechanism is provided on one side of the workbench.

[0007] Further improvement lies in: The bending mechanism includes a punch, a guide hole, a guide rod, a bending table, a bending groove, and a material pushing mechanism. A punch is fixedly provided in the middle of the bottom of the lifting plate, the top block is attached to both sides of the punch, guide holes are symmetrically opened on the lifting plate, guide rods are symmetrically and fixedly provided above the middle of the bracket, a bending table is fixedly provided in the middle of the workbench, a bending groove is opened in the middle of the bending table, a material pushing mechanism is provided in the middle of the bracket, and a sliding loading and unloading mechanism is provided beside one side of the bending table.

[0008] Further improvement lies in: The guide rod is correspondingly passed through the guide hole to guide the stable lifting of the lifting plate, and the punch and the bending groove are corresponding in the vertical position.

[0009] Further improvement lies in: The material pushing mechanism includes a first electric telescopic rod, an extension frame, and a material pushing roller. The first electric telescopic rods are symmetrically and fixedly provided at the front and back of the middle section of the bracket, the telescopic end of the first electric telescopic rod is fixedly provided with an extension frame, and a material pushing roller is rotatably provided in the extension frame.

[0010] Further improvement lies in: The material pushing roller is electrically driven by a motor, and the material pushing roller and the punch are corresponding in the front and back position.

[0011] Further improvement lies in: The sliding loading and unloading mechanism includes a vertical plate, a second electric telescopic rod, a feeding frame, a blanking groove, and a collection box. A vertical plate is fixedly provided on one side of the workbench, a second electric telescopic rod is fixedly provided on the vertical plate, the telescopic end of the second electric telescopic rod is fixedly provided with a feeding frame, a blanking groove is opened on the other side of the workbench, and a collection box is placed below the other side of the workbench.

[0012] Further improvement lies in: The feeding frame slides along the bending groove, and the collection box and the blanking groove are corresponding in the vertical position.

[0013] The beneficial effects of the present utility model are as follows: The present utility model uses the top block to follow the lifting plate and descend synchronously, and the inclined surface at the bottom of the top block is used to limit and finely adjust the sheet metal part, so that the sheet metal part is aligned with the punch up and down. At the same time, when the punch bends, it drives the connecting rod to slide and rise, and after the sheet metal is completed, it elastically slides back to its original position by the first spring, achieving the effect of automatic positioning. After the sheet metal is completed, the first electric telescopic rod extends to drive the feeding rollers to rotate and move towards each other to peel off the sheet metal part that may be stuck on the punch, solving the problem of needing to stop the machine for maintenance when the punch is stuck with materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the overall front view cross-sectional view of the present utility model;

[0015] Figure 2 is the overall side view cross-sectional view of the present utility model;

[0016] Figure 3 is the enlarged schematic view of part A of the present utility model.

[0017] Among them: 1, workbench; 2, bracket; 3, hydraulic cylinder; 4, lifting plate; 5, connecting rod; 6, first spring; 7, top block; 8, punch; 9, guide hole; 10, guide rod; 11, bending table; 12, bending groove; 13, first electric telescopic rod; 14, extension frame; 15, feeding roller; 16, vertical plate; 17, second electric telescopic rod; 18, feeding frame; 19, blanking groove; 20, collection box. SPECIFIC EMBODIMENTS

[0018] In order to deepen the understanding of the present utility model, the following will further elaborate on the present utility model in combination with embodiments. These embodiments are only used to explain the present utility model and do not constitute a limitation on the protection scope of the present utility model.

[0019] According to Figure 1 , Figure 2 , Figure 3As shown in the figure, this embodiment provides a sheet metal bending machine with automatic loading and unloading, which includes a workbench 1, a positioning and ejecting mechanism, a bending mechanism, and a sliding loading and unloading mechanism. The positioning and ejecting mechanism includes a bracket 2, a hydraulic cylinder 3, a lifting plate 4, a connecting rod 5, a first spring 6, and a top block 7. A bracket 2 is fixedly arranged in the middle of the workbench 1, a hydraulic cylinder 3 is fixedly arranged at the top of the bracket 2, the telescopic end of the hydraulic cylinder 3 is fixedly provided with a lifting plate 4, the connecting rod 5 is symmetrically and slidably penetrated through the lifting plate 4, the upper end of the connecting rod 5 is fixedly sleeved with a first spring 6, the lower end of the connecting rod 5 is fixedly provided with a top block 7, the lower end of the first spring 6 is fixedly connected to the top of the lifting plate 4, a bending mechanism is arranged at the bottom of the lifting plate 4, and a sliding loading and unloading mechanism is arranged on one side of the workbench 1. When performing stamping and bending, the hydraulic cylinder 3 extends to drive the lifting plate 4 to descend and drive the punch 8 to perform bending. As the lifting plate 4 descends, first, the top block 7 contacts the sheet metal part. As the lifting plate 4 descends, the sheet metal part is finely positioned by the inclined surface of the top block 7, so that the sheet metal part is aligned with the punch 8. At the same time, when bending, the top block 7 is pushed up to drive the connecting rod 5 to rise without affecting the bending process. After the bending is completed, the lifting plate 4 rises, and the connecting rod 5 and the top block 7 return to their positions under the elastic force of the first spring 6, which is convenient for assisting in positioning the next group of sheet metal parts, solving the problem that the position of the sheet metal part needs to be adjusted manually during loading, and effectively improving the processing efficiency.

[0020] The bending mechanism includes a punch 8, a guide hole 9, a guide rod 10, a bending table 11, a bending groove 12, and a material pushing mechanism. The punch 8 is fixedly arranged in the middle of the bottom of the lifting plate 4, the top block 7 is attached to both sides of the punch 8, guide holes 9 are symmetrically opened on the lifting plate 4, guide rods 10 are symmetrically and fixedly arranged above the inside of the bracket 2, the bending table 11 is fixedly arranged in the middle of the workbench 1, a bending groove 12 is opened in the middle of the bending table 11, a material pushing mechanism is arranged in the middle of the bracket 2, and a sliding loading and unloading mechanism is arranged beside one side of the bending table 11. The guide rod 10 is passed through the guide hole 9 in a matching manner to guide the stable lifting of the lifting plate 4. The punch 8 and the bending groove 12 are in corresponding up and down positions. When bending, the punch 8 and the bending groove 12 cooperate to squeeze the sheet metal part into the shape of the bending groove 12. When the lifting plate 4 moves up and down, it slides along the guide rod 10 to maintain stability.

[0021] The material pushing mechanism includes a first electric telescopic rod 13, an extension frame 14, and a material pushing roller 15. The first electric telescopic rods 13 are symmetrically and fixedly arranged at the front and back of the middle section of the bracket 2. The telescopic end of the first electric telescopic rod 13 is fixedly provided with an extension frame 14. A material pushing roller 15 is rotatably arranged inside the extension frame 14. The material pushing roller 15 is electrically driven by a motor. The material pushing roller 15 and the punch 8 are in corresponding front and back positions. After the stamping and bending are completed, the hydraulic cylinder 3 retracts to drive the lifting plate 4 to rise. At the same time, the second electric telescopic rod 17 extends to drive the extension frame 14 and the material pushing roller 15 to move and fit with the punch 8. The motor drives the material pushing roller 15 to rotate to peel off the sheet metal part that may be stuck on the punch 8, solving the problem that the sheet metal part is easily stuck under the punch 8 and requires shutdown for maintenance.

[0022] The sliding loading and unloading mechanism includes a vertical plate 16, a second electric telescopic rod 17, a feeding frame 18, a blanking chute 19, and a collection box 20. A vertical plate 16 is fixedly provided on one side of the workbench 1. A second electric telescopic rod 17 is fixedly provided on the vertical plate 16. The telescopic end of the second electric telescopic rod 17 is fixedly provided with a feeding frame 18. A blanking chute 19 is provided on the other side of the workbench 1. A collection box 20 is placed below the other side of the workbench 1. The feeding frame 18 slides along the bending chute 12. The collection box 20 corresponds to the blanking chute 19 in the vertical position. The second electric telescopic rod 17 pushes the feeding frame 18 to slide along the blanking chute 19 to realize automatic loading and unloading. The second electric telescopic rod 17 stops when pushing the feeding frame 18 to move below the punch 8 and starts to extend again during blanking. Just put the sheet metal part into the feeding frame 18 to realize automatic sheet metal bending and blanking, effectively improving the sheet metal processing efficiency.

[0023] When the automatic loading and unloading sheet metal bending machine is used for sheet metal processing, the sheet metal part is placed in the feeding frame. The second electric telescopic rod extends to drive the feeding frame and the sheet metal part to slide along the bending chute to below the punch. The hydraulic cylinder extends to drive the lifting plate and the punch to descend. First, the top block contacts the sheet metal part and pushes the sheet metal part to be finely adjusted and aligned. As the lifting plate continues to descend, the bending table pushes the top block and the connecting rod up to facilitate the cooperation between the punch and the bending chute to bend and extrude the sheet metal part. After the bending is completed, the hydraulic cylinder retracts to drive the lifting plate and the punch to rise. The top block and the connecting rod return under the elastic action of the first spring. At the same time, the first electric telescopic rod extends to drive the extension frame and the material pushing roller to move towards each other and fit against the punch. The motor drives the material pushing roller to rotate to peel off the sheet metal part that may be stuck on the punch. When blanking is required, the second electric telescopic rod extends again, and the feeding frame pushes the sheet metal part to move to the other side and fall into the collection box through the blanking chute.

[0024] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sheet metal bending machine with automatic loading and unloading, characterized in that: It includes a workbench (1), a positioning and ejecting mechanism, a bending mechanism, and a sliding loading and unloading mechanism. The positioning and ejecting mechanism includes a bracket (2), a hydraulic cylinder (3), a lifting plate (4), a connecting rod (5), a first spring (6), and a top block (7). A bracket (2) is fixedly provided in the middle of the workbench (1), a hydraulic cylinder (3) is fixedly provided at the top of the bracket (2), a lifting plate (4) is fixedly provided at the telescopic end of the hydraulic cylinder (3), the connecting rods (5) are symmetrically and slidably penetrated through the lifting plate (4), a first spring (6) is fixedly sleeved on the upper ends of the connecting rods (5), a top block (7) is fixedly provided at the lower ends of the connecting rods (5), the lower end of the first spring (6) is fixedly connected to the top of the lifting plate (4), a bending mechanism is provided at the bottom of the lifting plate (4), and a sliding loading and unloading mechanism is provided on one side of the workbench (1).

2. The sheet metal bending machine with automatic loading and unloading according to claim 1, characterized in that: The bending mechanism includes a punch (8), a guide hole (9), a guide rod (10), a bending table (11), a bending groove (12), and a material pushing mechanism. A punch (8) is fixedly provided in the middle of the bottom of the lifting plate (4), the top block (7) is attached to both sides of the punch (8), guide holes (9) are symmetrically formed in the lifting plate (4), guide rods (10) are symmetrically and fixedly provided above the inside of the bracket (2), a bending table (11) is fixedly provided in the middle of the workbench (1), a bending groove (12) is formed in the middle of the bending table (11), a material pushing mechanism is provided in the middle of the inside of the bracket (2), and a sliding loading and unloading mechanism is provided beside one side of the bending table (11).

3. The sheet metal bending machine with automatic loading and unloading according to claim 2, characterized in that: The guide rod (10) is correspondingly passed through the guide hole (9) to guide the stable lifting of the lifting plate (4), and the punch (8) and the bending groove (12) are in corresponding up and down positions.

4. The sheet metal bending machine with automatic loading and unloading according to claim 2, characterized in that: The material pushing mechanism includes a first electric telescopic rod (13), an extension frame (14), and a material pushing roller (15). The first electric telescopic rods (13) are symmetrically and fixedly provided at the front and rear of the middle section of the bracket (2), an extension frame (14) is fixedly provided at the telescopic end of the first electric telescopic rod (13), and a material pushing roller (15) is rotatably provided inside the extension frame (14).

5. The sheet metal bending machine with automatic loading and unloading according to claim 4, characterized in that: The material pushing roller (15) is electrically driven by a motor, and the material pushing roller (15) and the punch (8) are in corresponding front and rear positions.

6. The automatic loading and unloading sheet metal bending machine according to claim 2, characterized in that: The sliding loading and unloading mechanism includes a vertical plate (16), a second electric telescopic rod (17), a feeding frame (18), a blanking groove (19), and a collection box (20). A vertical plate (16) is fixedly provided on one side of the workbench (1), a second electric telescopic rod (17) is fixedly provided on the vertical plate (16), a feeding frame (18) is fixedly provided at the telescopic end of the second electric telescopic rod (17), a blanking groove (19) is formed on the other side of the workbench (1), and a collection box (20) is placed below the other side of the workbench (1).

7. An automatic loading and unloading sheet metal bending machine according to claim 6, characterized in that: The feeding frame (18) slides along the bending groove (12), and the collection box (20) and the blanking groove (19) are in corresponding up and down positions.

Images