Workpiece bending and shaping device for stamping

Abstract

The utility model belongs to the technical field of workpiece stamping, bending, pulling back and shaping, and discloses a workpiece bending and shaping device for stamping, which comprises two fixed sliding blocks, a movable sliding block is slidably connected between the fixed sliding blocks, a product piece is lapped on the surface of the movable sliding block, a recoil block is arranged on the surface of the product piece, and the recoil block is connected with the movable sliding block. And pressing blocks are slidably connected to the two sides of the recoil block correspondingly, mounting plates are fixedly mounted on the two opposite sides in the fixed sliding block correspondingly, and springback assemblies are fixedly mounted at the four corners of the surface of each mounting plate correspondingly. In the die assembly process, when the punching machine moves downwards, the pressing block is pushed to move downwards, then the pressing block and the recoil block are pressed downwards at the same time, due to the fact that the pressing block and the recoil block form a sliding block and sliding rail structure, the pressing block moves towards the two sides when moving downwards, the pressing block is matched with the fixed sliding block to form a product when reaching the final position, and then after the punching machine relieves pressure, the pressing block and the recoil block are pressed downwards. And the movable sliding block pushes the product piece, the back-punching block and the pressing block to reset upwards, and punching is completed.

Description

Technical Field

[0001] The utility model belongs to the technical field of workpiece stamping, bending and pulling-back shaping, and particularly relates to a workpiece bending and shaping device for stamping. Background Art

[0002] Stamping and bending is a common metal processing technology, mainly used for bending flat materials through a die. This process is usually after the cutting process and occupies an important position in the whole processing chain. The stamping and bending process can be divided into various types, including suspended bending, in-die bending, flapper bending, hemming and pressing, etc.

[0003] For example, the utility model with the publication number CN210907509U discloses a workpiece bending and shaping device for stamping, which includes a frame and a working platform horizontally arranged and fixed on the frame. A horizontally arranged cross beam is fixed directly above the working platform. A pressing and folding assembly for bending a thin plate is arranged between the working platform and the cross beam. The pressing and folding assembly includes a stamping plate vertically arranged with the long side direction parallel to the working platform for bending the thin plate and a stamping die located directly below the stamping plate. A return spring is fixed at the upper end of the stamping plate, and the end of the return spring away from the stamping plate is fixed on the cross beam. A jack for driving the stamping plate to move towards / away from the stamping die is arranged at the upper end of the stamping plate. Through the above settings, the friction force received by the stamping plate is reduced, the wear of the stamping plate is alleviated, and further the shearing force and bending force received at both ends of the stamping plate are reduced, reducing the occurrence of the phenomenon that the stamping plate is scrapped due to overloading, and effectively prolonging the service life of the stamping plate.

[0004] After the product part is bent, the product part is still in the bent groove, and it is necessary for personnel to manually demold the product part. During the demolding process, the product part is likely to scratch the hands of the personnel. Therefore, in view of the above problems, a workpiece bending and shaping device for stamping is proposed. Summary of the Utility Model

[0005] To solve the problems raised in the above background art, the utility model provides a workpiece bending and shaping device for stamping, which can solve the problem that after the product part is bent, the product part is still in the bent groove, and it is necessary for personnel to manually demold the product part. During the demolding process, the product part is likely to scratch the hands of the personnel.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a workpiece bending and shaping device for stamping, comprising two fixed sliding blocks, a movable sliding block is slidably connected between the fixed sliding blocks, a product part is overlapped on the surface of the movable sliding block, a recoil block is slidably connected to a pressure block on both sides of the recoil block, mounting plates are fixedly installed on the opposite sides of the fixed sliding blocks, rebound components are fixedly installed at the four corners of the surface of the mounting plate, and guide blocks are fixedly installed on both sides of the movable sliding block.

[0007] Preferably, the rebound assembly includes a mounting tube fixedly mounted at the four corners of the mounting plate surface, a hydraulic rod fixedly mounted on the inner bottom of the mounting tube, a spring sleeved on the surface of the hydraulic rod, a resistance plate fixedly mounted on the top of the hydraulic rod, and the surface of the resistance plate is in contact with the bottom of the moving slider.

[0008] Preferably, guide frames are fixedly mounted on both sides of the mounting plate, and guide blocks are slidably connected inside the guide frames.

[0009] Preferably, a slide groove is provided on the surface of the guide frame, and the size of the slide groove is matched with the size of the guide block.

[0010] Preferably, both sides of the recoil block are inclined surfaces, and the recoil block inclined surfaces slide relative to the inner sides of the pressing block.

[0011] Preferably, stabilizing blocks are fixedly mounted on both sides of the surface of the fixed sliding block, and the shape of the stabilizing blocks is a stable trapezoid.

[0012] Preferably, an extrusion groove is provided at a corner of the fixed sliding block that is arranged opposite to each other, and the size of the extrusion groove is adapted to the size of the product after molding.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The utility model arranges a fixed slide block, a movable slide block, a product part, a recoil block and a pressure block. During the mold closing process, the punch press pushes the pressure block to move downward when it moves downward, and then simultaneously presses the pressure block and the recoil block downward. Since the pressure block and the recoil block form the structure of the slide block and the slide rail, the pressure block also moves to both sides when it moves downward, and reaches the final position to cooperate with the fixed slide block to form the product part. Then, after the punch press releases the pressure, the movable slide block pushes the product part, the recoil block and the pressure block to reset upward, thereby completing the stamping.

[0015] The utility model is provided with a mounting plate, a rebound component and a guide block. During use, the punch press is pressed downward, and then the resistance plate is squeezed by the movable slider. After the resistance plate is squeezed, the hydraulic rod and the spring are contracted. After the product is stamped and bent, the hydraulic rod and the spring will drive the resistance plate to reset upward, reset the movable slider, and lift the product. When the movable slider moves up and down, the guide frames on both sides of the mounting plate will guide the movable slider through the guide blocks, thereby improving the efficiency of demoulding the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the split structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the movable slider of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the rebound component of the utility model.

[0020] In the figure: 1, fixed slide; 2, movable slide; 3, product part; 4, recoil block; 5, pressure block; 6, mounting plate; 7, rebound assembly; 71, mounting cylinder; 72, hydraulic rod; 73, spring; 74, contact plate; 8, guide block; 9, guide frame. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figures 1 to 4 As shown, the utility model provides a workpiece bending and shaping device for stamping, including two fixed sliders 1, a movable slider 2 is slidably connected between the fixed sliders 1, a product part 3 is overlapped on the surface of the movable slider 2, a recoil block 4 is provided on the surface of the product part 3, a pressure block 5 is slidably connected on both sides of the recoil block 4, mounting plates 6 are fixedly installed on the opposite sides inside the fixed slider 1, rebound components 7 are fixedly installed at the four corners of the surface of the mounting plate 6, guide blocks 8 are fixedly installed on both sides of the movable slider 2, guide frames 9 are fixedly installed on both sides of the mounting plate 6, the guide blocks 8 are slidably connected inside the guide frame 9, and a slide groove is provided on the surface of the guide frame 9, and the size of the slide groove is adapted to the size of the guide block 8.

[0023] During the mold closing process, when the punching machine moves downward, it pushes the pressure block 5 downward, and then simultaneously presses the pressure block 5 and the counter punch block 4 downward. Since the pressure block 5 and the counter punch block 4 form a structure of a slider and a slide rail, when the pressure block 5 moves downward, it also moves to both sides and reaches the final position to cooperate with the fixed slider 1 to form the product part 3. Then, after the punching machine relieves the pressure, the moving slider 2 pushes the product part 3, the counter punch block 4 and the pressure block 5 upward to reset, completing the stamping.

[0024] As Figures 1 to 4 shown, the springback assembly 7 includes mounting cylinders 71 fixedly installed at the four corners of the surface of the mounting plate 6. A hydraulic rod 72 is fixedly installed at the inner bottom of the mounting cylinder 71. A spring 73 is sleeved on the surface of the hydraulic rod 72. A contact plate 74 is fixedly installed at the top of the hydraulic rod 72. The surface of the contact plate 74 is in contact with the bottom of the moving slider 2.

[0025] During use, the punching machine presses downward, and then squeezes the contact plate 74 through the moving slider 2. After the contact plate 74 is squeezed, the hydraulic rod 72 and the spring 73 contract. After the product part 3 is stamped and bent, the hydraulic rod 72 and the spring 73 will drive the contact plate 74 to reset upward, reset the moving slider 2, and the moving slider 2 jacks up the product part 3. When the moving slider 2 moves up and down, the guide frames 9 on both sides of the mounting plate 6 will guide the moving slider 2 through the guide blocks 8, improving the demoulding efficiency of the product part 3.

[0026] As Figures 1 to 4 shown, both sides of the counter punch block 4 are inclined surfaces. The inclined surfaces of the counter punch block 4 slide relative to the interior opposite to the pressure block 5. Stabilizing blocks are fixedly installed on both sides of the surface of the fixed slider 1. The shape of the stabilizing blocks is a trapezoid with stability. An extrusion groove is provided at one opposite corner of the fixed slider 1. The size of the extrusion groove is adapted to the size of the product part 3 after forming.

[0027] During use, the pressure block 5 will squeeze the counter punch block 4 through the opposite inclined surfaces. Subsequently, the counter punch block 4 will squeeze the product part 3, and the fixed slider 1 will bend the product part 3, improving the bending efficiency of the product part 3.

[0028] The working principle and use process of the utility model are as follows: during the mold closing process, the punch press pushes the pressure block 5 downward when it moves downward, and then presses the pressure block 5 and the recoil block 4 downward at the same time. Since the pressure block 5 and the recoil block 4 form the structure of a slider and a slide rail, the pressure block 5 also moves to both sides when it moves downward, and reaches the final position to cooperate with the fixed slider 1 to form the product part 3. Then, after the punch press releases the pressure, the movable slider 2 pushes the product part 3, the recoil block 4 and the pressure block 5 upward to reset, and the stamping is completed. After the stamping is completed, the hydraulic rod 72 and the spring 73 will drive the contact plate 74 to reset upward, reset the movable slider 2, and the movable slider 2 will lift the product part 3. When the movable slider 2 moves up and down, the guide frames 9 on both sides of the mounting plate 6 will guide the movable slider 2 through the guide blocks 8.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

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

Claims

1. A workpiece bending and shaping device for stamping, comprising two fixed slide blocks (1), characterized in that: A movable slider (2) is slidably connected between the fixed sliders (1), a product part (3) is overlapped on the surface of the movable slider (2), a recoil block (4) is provided on the surface of the product part (3), and pressure blocks (5) are slidably connected on both sides of the recoil block (4), mounting plates (6) are fixedly installed on two opposite sides inside the fixed slider (1), and rebound components (7) are fixedly installed at the four corners of the surface of the mounting plate (6), and guide blocks (8) are fixedly installed on both sides of the movable slider (2).

2. The device for bending and shaping a workpiece for stamping according to claim 1, characterized in that: The rebound assembly (7) comprises a mounting tube (71) fixedly mounted at the four corners of the surface of the mounting plate (6); a hydraulic rod (72) is fixedly mounted on the inner bottom of the mounting tube (71); a spring (73) is sleeved on the surface of the hydraulic rod (72); a resistance plate (74) is fixedly mounted on the top of the hydraulic rod (72); and the surface of the resistance plate (74) is in contact with the bottom of the movable slider (2).

3. The device for bending and shaping a workpiece for stamping according to claim 1, characterized in that: Guide frames (9) are fixedly mounted on both sides of the mounting plate (6), and guide blocks (8) are slidably connected inside the guide frames (9).

4. The device for bending and shaping a workpiece for stamping according to claim 3, characterized in that: A sliding groove is provided on the surface of the guide frame (9), and the size of the sliding groove is adapted to the size of the guide block (8).

5. The device for bending and shaping a workpiece for stamping according to claim 1, characterized in that: Both sides of the recoil block (4) are inclined surfaces, and the inclined surfaces of the recoil block (4) and the pressing block (5) slide relative to each other internally.

6. The device for bending and shaping a workpiece for stamping according to claim 1, characterized in that: Stabilizing blocks are fixedly mounted on both sides of the surface of the fixed sliding block (1), and the shape of the stabilizing blocks is a stable trapezoid.

7. The device for bending and shaping a workpiece for stamping according to claim 1, characterized in that: An extrusion groove is provided at a corner of the fixed sliding block (1) that is arranged opposite to the other. The size of the extrusion groove is adapted to the size of the product (3) after molding.

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