Special bending machine die for special Z-shaped workpiece

Abstract

The utility model relates to the technical field of bending dies, and discloses a special bending machine die for a special Z-shaped workpiece, which comprises an upper pressing die, the bottom side of the upper pressing die is movably connected with a guide upper V frame, and the right side of the bottom of the guide upper V frame is movably connected with an inverted V frame. The inverted-V-shaped frame is in the shape of the guiding upper V-shaped frame rotating clockwise, the guiding upper V-shaped frame and the inverted-V-shaped frame are combined to form a Z shape, and inserting rod positions are arranged on the side walls of the guiding upper V-shaped frame and the inverted-V-shaped frame. Through the unique design that the upper pressing grinding tool and the guide upper V-shaped frame are ingeniously and tightly matched and extruded and the guide upper V-shaped frame and the inverted V-shaped frame are precisely and synergistically combined into a Z shape, a workpiece can be bent with extremely high precision and accuracy, the workpiece bending quality is greatly improved, and the working efficiency is improved. It is ensured that the angle, the shape and the like of the bent workpiece can reach ideal standards, errors and flaws are effectively reduced, and therefore the high quality of products is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of bending dies, and particularly relates to a special die for a bending machine for special Z-shaped workpieces. Background Technique

[0002] A bending machine is a mechanical device capable of bending metal sheets. It mainly consists of a machine body, a workbench, a slider, dies, etc. The movement of the slider is precisely controlled by a control system, so that it drives the die to apply pressure to the sheet placed on the workbench, thereby bending it according to the set angle and shape. It is widely used in many fields such as automobile manufacturing, aerospace, electrical equipment, metal products, etc. It is an indispensable important device in modern industrial production and provides key technical support for manufacturing various metal structural parts and components.

[0003] Cold-formed thin-walled steel sections, as an important material, are extremely widely used in many different fields such as automobile manufacturing, railway vehicle production, building door and window installation, etc. In actual applications, in order to make the cold-formed thin-walled steel sections present the required Z-shaped structure, it is often necessary to use a bending machine to perform bending operations on them. However, during the debugging process of the existing dies, it is really quite difficult to achieve an ideal bending effect. The debugging of the dies requires precise control of various parameters and continuous attempts and corrections. This process is not only cumbersome but also has high technical requirements. At the same time, during the folding process of this special Z-shaped structure, due to its own characteristics, it will occupy a relatively large space position, which makes the operation more troublesome and the space utilization less flexible, greatly affecting the convenience of actual operation, and thus is not conducive to the improvement of the overall processing efficiency, and to a certain extent restricts the production process and benefits. Content of the Utility Model

[0004] The purpose of the utility model is to provide a special die for a bending machine for special Z-shaped workpieces to solve the problem that special Z-shaped workpieces are restricted by dimensions and space during bending and cannot be accurately bent efficiently.

[0005] The utility model specifically adopts the following technical solutions to achieve the above purpose:

[0006] A special bending machine dedicated mold for Z-shaped workpieces, including an upper pressing mold. The bottom side of the upper pressing mold is movably connected to a guiding upper V-frame. The bottom right side of the guiding upper V-frame is movably connected to an inverted V-frame. The shape of the inverted V-frame is the shape of the guiding upper V-frame rotated clockwise. The guiding upper V-frame and the inverted V-frame are combined to form a Z shape. Insertion rod positions are provided on the side walls of the guiding upper V-frame and the inverted V-frame. A rotating shaft penetrates through the centers of the guiding upper V-frame and the inverted V-frame. A fixing component is sleeved on the side wall of the rotating shaft. The outer edge of the fixing component is embedded into the gap between the insertion rod positions. The bottom side of the inverted V-frame is movably connected to a lower pressing mold. A sliding rod penetrates and slides between the inner side walls of the guiding upper V-frame and the inverted V-frame.

[0007] Furthermore, the upper pressing mold includes a pressing plate and an arc-shaped groove. The bottom sides of the pressing plate and the arc-shaped groove are movably connected to the top side of the guiding upper V-frame. The bottom side of the arc-shaped groove is movably connected to the top side of the rotating shaft inside the guiding upper V-frame.

[0008] Furthermore, the arc-shaped groove is arranged at the central part of the pressing plate.

[0009] Furthermore, the lower pressing mold includes a supporting plate and a concave plate. The top sides of the supporting plate and the concave plate are movably connected to the bottom side of the inverted V-frame. The bottom side of the concave plate is movably connected to the bottom side of the rotating shaft inside the inverted V-frame. The concave plate is arranged at the central part of the supporting plate.

[0010] Furthermore, the guiding upper V-frame includes a segmented plate, a card slot, and an arc-shaped area. The top sides of the segmented plate and the card slot are movably connected to the bottom side of the upper pressing mold. The formed Z-shaped workpiece is finally extruded in a Z shape between the upper pressing mold and the guiding upper V-frame, between the guiding upper V-frame and the inverted V-frame, and between the inverted V-frame and the lower pressing mold.

[0011] Furthermore, the card slot is arranged on the side wall of the segmented plate. The arc-shaped area is located at the central part of the segmented plate. It can be bent along the gap of the card slot on the top side of the guiding upper V-frame and the gap of the insertion rod position on the side wall part of the inverted V-frame as the track.

[0012] Furthermore, the fixing component includes a rotating wheel and a convex block. The inner ring of the rotating wheel is sleeved on the outer side wall of the rotating shaft. The side wall of the rotating wheel is clamped between the side wall gaps of the insertion rod positions, which can increase the resistance for the fixation of the strip-shaped workpiece and reduce slipping.

[0013] Furthermore, the convex block is arranged on the outer side wall of the rotating wheel.

[0014] Compared with the prior art, the present utility model provides a special bending machine dedicated mold for Z-shaped workpieces, having the following beneficial effects:

[0015] The special Z-shaped workpiece bending machine special mold can bend the workpiece with extremely high precision and accuracy through the ingenious and tight cooperation and extrusion between the upper pressing mold and the guiding upper V-frame, and the unique design of accurately combining the guiding upper V-frame and the inverted V-frame into a Z shape, greatly improving the quality of workpiece bending, ensuring that the bent workpiece can reach the ideal standard in terms of angle, shape, etc., effectively reducing the generation of errors and defects, thus ensuring the high quality of the product, enabling efficient bending operations, greatly shortening the processing time, and improving the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 It is a structural display diagram of the guiding upper V-frame of the present utility model;

[0018] Figure 3 It is a structural connection display diagram of the guiding upper V-frame and the inverted V-frame of the present utility model;

[0019] Figure 4 It is a structural display diagram of the fixing component of the present utility model;

[0020] Figure 5 It is a structural relationship display diagram of the insertion rod position and the fixing component and the inverted V-frame of the present utility model.

[0021] In the figure: 1. Upper pressing mold; 11. Pressing plate; 12. Arc-shaped groove; 2. Lower pressing mold; 21. Supporting plate; 22. Lower concave plate; 3. Guiding upper V-frame; 31. Segmented plate; 32. Card slot; 33. Arc-shaped area; 4. Inverted V-frame; 5. Insertion rod position; 6. Fixing component; 61. Rotating wheel; 62. Convex block; 7. Rotating shaft; 8. Sliding rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model. Embodiment 1

[0023] As Figures 1 - 5As shown in the figure, a special die for a bending machine of a Z-shaped workpiece includes an upper pressing die 1. A guiding upper V-shaped frame 3 is movably connected to the bottom side of the upper pressing die 1. A reverse V-shaped frame 4 is movably connected to the right side of the bottom of the guiding upper V-shaped frame 3. The shape of the reverse V-shaped frame 4 is the shape of the guiding upper V-shaped frame 3 rotated clockwise. The guiding upper V-shaped frame 3 and the reverse V-shaped frame 4 are combined to form a Z shape. Plug rod positions 5 are provided on the side walls of both the guiding upper V-shaped frame 3 and the reverse V-shaped frame 4. A rotating shaft 7 penetrates through the centers of the guiding upper V-shaped frame 3 and the reverse V-shaped frame 4. A fixing component 6 is sleeved on the side wall of the rotating shaft 7. The outer edge of the fixing component 6 is embedded into the gap between the plug rod positions 5. A lower pressing die 2 is movably connected to the bottom side of the reverse V-shaped frame 4. A sliding rod 8 penetrates and is slidably connected between the inner side walls of the guiding upper V-shaped frame 3 and the reverse V-shaped frame 4.

[0024] As Figure 1 shown in the figure, the upper pressing die 1 includes a pressing plate 11 and an arc-shaped groove 12. The bottom sides of the pressing plate 11 and the arc-shaped groove 12 are movably connected to the top side of the guiding upper V-shaped frame 3. The bottom side of the arc-shaped groove 12 is movably connected to the top side of the rotating shaft 7 inside the guiding upper V-shaped frame 3. The arc-shaped groove 12 is arranged at the central part of the pressing plate 11. When the bending machine is started, the part of the upper pressing die 1 of this die descends with the power drive of the bending machine. The bottom side of the upper pressing die 1 fits the contour of the top side of the guiding upper V-shaped frame 3. The bottom side of the workpiece contacts the top side of the guiding upper V-shaped frame 3. Therefore, the upper and lower sides of the workpiece can be clamped between the bottom side of the upper pressing die 1 and the guiding upper V-shaped frame 3. As the upper pressing die 1 continues to press down, the workpiece is extruded;

[0025] As Figures 1 - 2 shown in the figure, the lower pressing die 2 includes a supporting plate 21 and a concave plate 22. The top sides of the supporting plate 21 and the concave plate 22 are movably connected to the bottom side of the reverse V-shaped frame 4. The bottom side of the concave plate 22 is movably connected to the bottom side of the rotating shaft 7 inside the reverse V-shaped frame 4. The concave plate 22 is arranged at the central part of the supporting plate 21. The part of the lower pressing die 2 supports and positions the reverse V-shaped frame 4 to ensure that the workpiece remains stable during the bending process and can be bent along a predetermined path;

[0026] As Figures 1 - 3 shown in the figure, the guiding upper V-shaped frame 3 includes a segmented plate 31, a clamping groove 32 and an arc-shaped area 33. The top sides of the segmented plate 31 and the clamping groove 32 are movably connected to the bottom side of the upper pressing die 1. The clamping groove 32 is arranged on the side wall of the segmented plate 31. The arc-shaped area 33 is located at the central part of the segmented plate 31. The distance between the guiding upper V-shaped frame 3 and the reverse V-shaped frame 4 is widened, so that the side wall of the workpiece passes through the side walls of the guiding upper V-shaped frame 3 and the reverse V-shaped frame 4. Then, the upper pressing die 1 and the reverse V-shaped frame 4 are simultaneously close to the side wall of the guiding upper V-shaped frame 3 for pressurization. Later, the angle is adjusted to press the other end, and it can be pressed into a Z shape. Embodiment 2

[0027] As Figure 1 and Figure 4As shown, the fixing component 6 includes a runner 61 and a bump 62. The inner ring of the runner 61 is sleeved on the outer sidewall of the rotating shaft 7, and the sidewall of the runner 61 is clamped between the sidewall gaps of the inserting rod position 5. The bump 62 is arranged on the outer sidewall of the runner 61, which can increase the resistance for fixing the strip workpiece and reduce slipping.

[0028] Working principle: As Figures 1 - 5 shown, when the bending machine is started, the part of the upper pressing die 1 of the die descends with the power drive of the bending machine. The bottom side of the upper pressing die 1 fits with the top side contour of the guiding upper V-shaped frame 3, and the bottom side of the workpiece contacts the top side of the guiding upper V-shaped frame 3. Therefore, the upper and lower sides of the workpiece can be clamped between the bottom side of the upper pressing die 1 and the guiding upper V-shaped frame 3. As the upper pressing die 1 continues to press down, the workpiece is extruded;

[0029] The part of the lower pressing die 2 supports and positions the inverted V-shaped frame 4 to ensure that the workpiece remains stable during the bending process and can be bent along the predetermined path;

[0030] After being stressed, the workpiece deforms and folds downward along the inner frame of the upper pressing die 1. The folded part of the workpiece fits against the right sidewall of the inverted V-shaped frame 4. When bending is required again, the distance between the guiding upper V-shaped frame 3 and the inverted V-shaped frame 4 can be widened, so that the sidewall of the workpiece passes through the gap between the sidewalls of the guiding upper V-shaped frame 3 and the inverted V-shaped frame 4. Then, the upper pressing die 1 and the inverted V-shaped frame 4 are simultaneously moved closer to the sidewall of the guiding upper V-shaped frame 3 to apply pressure. Later, by changing the angle and pressing the other end, it can be pressed into a Z shape;

[0031] When the bending is completed, the upper pressing die 1 rises, and the formed Z-shaped workpiece can be finally extruded in a Z shape between the upper pressing die 1 and the guiding upper V-shaped frame 3, between the guiding upper V-shaped frame 3 and the inverted V-shaped frame 4, and between the inverted V-shaped frame 4 and the lower pressing die 2 to make it accurately shaped;

[0032] When pressing a strip workpiece, it can be bent along the gaps of the card slots 32 on the top side of the guiding upper V-shaped frame 3 and the gaps of the inserting rod positions 5 on the sidewall part of the inverted V-shaped frame 4 as tracks, which can prevent it from deviating from the pressing track.

Claims

1. A special mold for a bending machine for a special Z-shaped workpiece, comprising an upper pressing mold (1), characterized in that: The bottom side of the upper pressing mold (1) is movably connected to a guide upper V frame (3), and the bottom right side of the guide upper V frame (3) is movably connected to an inverted V frame (4). The shape of the inverted V frame (4) is the shape of the guide upper V frame (3) rotated clockwise. The guide upper V frame (3) and the inverted V frame (4) are combined to form a Z shape. The side walls of the guide upper V frame (3) and the inverted V frame (4) are both provided with a rod insertion position (5). A rotating shaft (7) is penetrated and connected inside the axis of the guide upper V frame (3) and the inverted V frame (4). A fixing component (6) is sleeved on the side wall of the rotating shaft (7). The outer edge of the fixing component (6) is embedded in the gap between the rod insertion position (5). The bottom side of the inverted V frame (4) is movably connected to a lower pressing mold (2). A sliding rod (8) is penetrated and slidably connected between the inner side walls of the guide upper V frame (3) and the inverted V frame (4).

2. The special bending machine mold for a special Z-shaped workpiece according to claim 1 is characterized by: The upper pressing die (1) comprises a pressing plate (11) and an arc-shaped groove (12); the pressing plate (11) and the bottom side of the arc-shaped groove (12) are movably connected to the top side of the guide upper V-frame (3); and the bottom side of the arc-shaped groove (12) is movably connected to the top side of the rotating shaft (7) inside the guide upper V-frame (3).

3. The special bending machine mold for a special Z-shaped workpiece according to claim 2 is characterized by: The arc-shaped groove (12) is arranged at the central part of the pressing plate (11).

4. The special bending machine mold for a special Z-shaped workpiece according to claim 1 is characterized by: The pressing die (2) comprises a supporting plate (21) and a lower concave plate (22); the top sides of the supporting plate (21) and the lower concave plate (22) are movably connected to the bottom side of the inverted V-frame (4); the bottom side of the lower concave plate (22) is movably connected to the bottom side of the rotating shaft (7) inside the inverted V-frame (4); and the lower concave plate (22) is arranged at the center of the supporting plate (21).

5. The special bending machine mold for a special Z-shaped workpiece according to claim 1 is characterized by: The guide upper V-frame (3) comprises a segmented plate (31), a clamping groove (32) and an arc-shaped area (33); the top sides of the segmented plate (31) and the clamping groove (32) are movably connected to the bottom side of the upper pressing die (1).

6. The special bending machine mold for a special Z-shaped workpiece according to claim 5 is characterized by: The clamping groove (32) is arranged on the side wall of the segmented plate (31), and the arc-shaped area (33) is located at the central part of the segmented plate (31).

7. The special bending machine mold for a special Z-shaped workpiece according to claim 1 is characterized by: The fixing assembly (6) comprises a rotating wheel (61) and a protrusion (62); the inner ring of the rotating wheel (61) is sleeved on the outer side wall of the rotating shaft (7); and the side wall of the rotating wheel (61) is clamped between the side wall gaps of the rod insertion position (5).

8. The special bending machine mold for a special Z-shaped workpiece according to claim 7 is characterized in that: The protrusion (62) is arranged on the outer side wall of the rotating wheel (61).

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