A bending part forming die

Abstract

The present invention relates to the technical field of bending machines, and specifically to a bending part forming mold, including a bending machine, the bending machine including a bending mold and a lower pressure plate, a bearing plate is provided on the bending mold, a first cavity is provided in the bearing plate, connecting plates are fixedly provided on both sides of the bearing plate, the two connecting plates are connected by a fixing column, a flip plate is hinged on the fixing column, in an initial state, the flip plate and the bearing plate are parallel to each other, a deflection component for driving the flip plate to deflect is provided in the first cavity, a driving component for driving the deflection component to work is also provided on the bending mold, and a certain gap is reserved between the flip plate and the bending mold, an arc groove is provided on the flip plate, a second cavity is provided in the flip plate, and a buffer component for buffering objects is also provided in the arc groove to avoid a certain impact force generated when the object falls from a certain height and contacts the bearing plate, thereby causing the appearance of fine marks.

Description

Technical Field

[0001] The invention relates to the technical field of bending machines, and in particular to a bending part forming die. Background Art

[0002] Bending dies are tools used by bending machines to shape and process sheet materials. This tool is composed of various parts. Different dies are composed of different parts. It mainly realizes the processing of the shape of the object by changing the physical state of the formed material. It is used to make the blank into a part with a specific shape and size under the pressure of the bending machine.

[0003] The bending machine has only upper and lower molds. When bending, people need to hold the object by hand to prevent the object from moving during bending. Therefore, the operator needs to hold the object and put it under the punch head. The object is bent under the interaction of the bending mold and the punch head. At this time, the operator also needs to hold the bent object to prevent the punch head from separating from the object and causing the object to fall, thereby causing wear of the object. The whole process requires the operator to stay beside the bending machine for a long time to handle it, which makes the operator time-consuming and laborious throughout the process, and there is no time to deal with emergencies. The prior art uses a carrying plate. After the object is separated from the punch head, the bent object can fall onto the carrying plate, avoiding the operator from holding the object after bending. However, when the object falls on the carrying plate, a certain impact force will be generated when the object contacts the carrying plate. For objects that require no marks, the impact between the object and the carrying plate may cause fine marks, and the operator still needs to hold the object by hand and put it under the punch head in the early stage. In order to overcome such hidden dangers, a solution is urgently needed. Summary of the invention

[0004] The object of the present invention is to provide a bending part forming die for solving the above-mentioned problem.

[0005] The present invention is achieved through the following technical solutions:

[0006] A bending part forming mold comprises a bending machine, which comprises a bending mold and a lower pressure plate. A bearing plate is provided on the bending mold, a first cavity is provided in the bearing plate, connecting plates are fixedly provided on both sides of the bearing plate, the two connecting plates are connected by a fixing column, a flip plate is hinged on the fixing column, in an initial state, the flip plate and the bearing plate are parallel to each other, a deflection assembly for driving the flip plate to deflect is provided in the first cavity, a driving assembly for driving the deflection assembly to work is also provided on the bending mold, a certain gap is reserved between the flip plate and the bending mold, an arc groove is provided on the flip plate, a second cavity is provided in the flip plate, and a buffer assembly for buffering objects is also provided in the arc groove.

[0007] The present invention sets a flip plate, in the initial state, one end of the object is placed under the punch head, and the other end of the object is placed in the arc groove. When the punch head punches the object, one end of the object slowly tilts up. During the pressing process of the punch head, the object has a tendency to slide. The buffer component has a certain buffering effect on the position of the object at this time, avoiding the sliding of the object and causing the bending line to deviate. The driving component drives the deflection component to drive the flip plate to flip, reducing the impact force between the object and the flip plate, avoiding the object from falling from a certain height and contacting the load-bearing plate to generate a certain impact force, thereby causing the appearance of fine marks. Since a certain gap is reserved between the flip plate and the bending mold, the situation where the flip plate contacts the bending mold and cannot deflect is avoided.

[0008] It should be noted that the deflection assembly includes deflection components respectively arranged on both sides of the supporting plate, the deflection components include a through hole opened on the supporting plate, the through hole is connected to the first cavity, a first outer sleeve is fixedly arranged on the inner wall of the first cavity, the first outer sleeve is sleeved on the outer wall of the movable column, the outer wall of the movable column is connected to the inner wall of the first outer sleeve through an elastic member that can slowly rebound, a moving block is provided at the end of the first movable column, a second movable column is provided on the side of the moving block away from the moving column, a support rod is hinged on the moving block, the end of the support rod is fixedly connected to the flip plate after passing through the through hole, and the end of the support rod is inclined in the direction away from the bending mold.

[0009] It should be noted that the driving assembly includes driving components respectively arranged on both sides of the bending mold, and the driving components include a first through hole and a second through hole opened on the bending mold, the axes of the first through hole and the second through hole are perpendicular to each other, and the first through hole and the second through hole are connected, and the second movable column movably penetrates the inner wall of the first cavity and extends outward into the second through hole, a first wedge block is provided on the extending end of the second movable column, a lower pressure block is provided on the lower pressure plate, and a second wedge block matching the first wedge block is provided at one end of the lower pressure block.

[0010] It should be noted that the buffer assembly includes a buffer component provided on the inner walls opposite to each other on both sides of the arc groove, the buffer component includes a guide hole opened on the arc groove, a second outer sleeve is provided in the second cavity, the second outer sleeve is sleeved on the outer wall of the guide column, the outer wall of the guide column is connected to the inner wall of the second outer sleeve through a compression spring, a guide plate is provided at the end of the guide column, the end of the guide plate away from the second outer sleeve is chamfered, two first guide plates are provided at the chamfered end of the guide plate, the two first guide plates are respectively located at the upper and lower parts of the guide plate, and are symmetrical to each other, and are inclined in the vertical direction along the second outer sleeve, and rubber pads are respectively laid on the first guide plate, the chamfered end of the guide plate and the inner wall of the arc groove.

[0011] The present application is suitable for small short objects. When the object is placed in the arc groove, the first guide plate at the lower part of the two guide plates contacts the two sides of the object respectively. Therefore, when the punch head is punching and bending the object, if the object tends to slide, the rubber pad of the first guide plate and the rubber pad in the arc groove will perform a friction buffering effect to offset the force and prevent the object from sliding, thereby causing the bending line to shift. In addition, because of the provision of the rubber pad, fine marks will not be generated on the surface of the object.

[0012] It should be noted that two symmetrical second guide plates are provided on the flip plate, the two second guide plates are respectively located on both sides of the arc groove, and the second guide plates are inclined in the vertical direction away from the arc groove. To avoid some wide objects from deviating during the falling process, the second guide plates of the present invention enable the objects to fall into the arc groove.

[0013] It should be noted that the second guide plate is in a convex arc shape to enhance the guiding effect on objects entering the arc groove.

[0014] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0015] 1. The present invention sets a flip plate. In the initial state, one end of the object is placed under the punch head, and the other end of the object is placed in the arc groove. When the punch head punches the object, one end of the object slowly tilts up. During the pressing process of the punch head, the object tends to slide. The buffer component has a certain buffering effect on the position of the object at this time, reducing the impact force between the object and the flip plate, avoiding the object from falling from a certain height and contacting the load-bearing plate to generate a certain impact force, thereby causing the appearance of fine marks.

[0016] 2. The present invention places the object in the arc groove, and the first guide plates at the lower parts of the two guide plates are in contact with the two sides of the object respectively. Therefore, when the punch head is punching and bending the object, if the object tends to slide, a friction buffer is performed through the rubber pad of the first guide plate and the rubber pad in the arc groove, so that the force is offset to avoid the object from sliding, thereby causing the bending line to shift. In addition, because of the rubber pad, fine marks will not be generated on the surface of the object.

[0017] 3. The present invention provides two symmetrical second guide plates on the flip plate, the two second guide plates are respectively located on both sides of the arc groove, and the second guide plates are inclined in the vertical direction away from the arc groove. This prevents some wide objects from deviating during the falling process, and the second guide plates of the present invention enable the objects to fall into the arc groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of the buffer plate of the present invention;

[0021] Figure 3 is a cross-sectional view of a carrier plate of the present invention;

[0022] Figure 4 It is a cross-sectional view of the buffer plate of the present invention.

[0023] Marks and corresponding parts names in the attached drawings:

[0024] 1-bending die; 2-lower pressure plate; 3-punch head; 4-carrying plate; 5-first cavity; 6-connecting plate; 7-fixed column; 8-flip plate; 9-arc groove; 10-through hole; 11-first outer sleeve; 12-first movable column; 13-second movable column; 14-support rod; 15-first through hole; 16-second through hole; 17-first wedge block; 18-second wedge block; 19-guide hole; 20-second outer sleeve; 21-compression spring; 22-guide plate; 23-first guide plate; 24-second guide plate; 25-lower pressure block; 26-moving block; 27-guide column; 28-second cavity. DETAILED DESCRIPTION

[0025] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0026] Example:

[0027] like Figures 1 to 4 As shown, the present invention includes a bending machine, which includes a bending mold 1 and a lower pressure plate 2. A bearing plate 4 is provided on the bending mold 1, and a first cavity 5 is provided in the bearing plate 4. Connecting plates 6 are fixedly provided on both sides of the bearing plate 4, and the two connecting plates 6 are connected by a fixing column 7. A flip plate 8 is hinged on the fixing column 7. In an initial state, the flip plate 8 is parallel to the bearing plate 4, and a deflection component for driving the flip plate 8 to deflect is provided in the first cavity 5. A driving component for driving the deflection component to work is also provided on the bending mold 1, and a certain gap is reserved between the flip plate 8 and the bending mold 1.

[0028] The prior art uses a carrying plate 4. After the object is separated from the punch head 3, the bent object can fall onto the carrying plate 4, avoiding the operator from holding the object after bending. However, when the object falls on the carrying plate 4, the contact between the object and the carrying plate 4 will produce a certain impact force. For objects that require no marks, the impact between the object and the carrying plate 4 may cause fine marks, and the operator still needs to hold the object by hand to place it under the punch head 3 in the early stage.

[0029] The present invention provides a flip plate 8. In the initial state, one end of the object is placed under the punch head 3 and the other end of the object is placed in the arc groove 9. When the punch head 3 punches the object, one end of the object slowly rises. During the pressing process of the punch head 3, the object tends to slide. The buffer component has a certain buffering effect on the position of the object at this time, thereby avoiding the sliding of the object and causing the bending line to shift. The driving component drives the deflection component to drive the flip plate 8 to flip. When the punch head 3 is separated from the bent object, the tilted end of the object falls downward, and the driving component drives the flip plate 8 to slowly return to its original position. Since the tilted end of the object falls downward faster than the speed at which the flip plate 8 returns to its original position, the tilted end will first contact the flip plate 8. At this time, the flip plate 8 is still in an inclined state. Therefore, the contact distance between the object and the flip plate 8 is closer, which reduces the impact force between the object and the flip plate 8, and avoids the object from falling from a certain height and contacting the bearing plate 4 to generate a certain impact force, thereby causing the appearance of fine marks. Since a certain gap is reserved between the flip plate 8 and the bending die 1 , the situation in which the flip plate 8 contacts the bending die 1 and cannot deflect is avoided.

[0030] The deflection assembly includes deflection components respectively arranged on both sides of the supporting plate 4, and the deflection components include a through hole 10 opened on the supporting plate 4, the through hole 10 is connected to the first cavity 5, and a first outer sleeve 11 is fixedly arranged on the inner wall of the first cavity 5, and the first outer sleeve 11 is sleeved on the outer wall of the first movable column 12. The outer wall of the first movable column 12 is connected to the inner wall of the first outer sleeve 11 through an elastic member that can slowly rebound, and a moving block 26 is provided at the end of the first movable column 12, and a second movable column 13 is provided on the side of the moving block 26 away from the first movable column 12, and a support rod 14 is hinged on the moving block 26, and the end of the support rod 14 is fixedly connected to the flip plate 8 after passing through the through hole 10, and the end of the support rod 14 is inclined in the direction away from the bending mold 1.

[0031] The elastic member in the present invention adopts a damping spring. First, the second moving column 13 drives the moving block 26 to move toward the first outer sleeve 11, and the damping spring is deformed. At this time, the support rod 14 on the moving block 26 drives the flip plate 8 to flip, so that the flip plate 8 is in an inclined state, and the flip plate 8 flips synchronously with the object. When the second moving column 13 loses the thrust in the direction of the first outer sleeve 11, the damping spring slowly rebounds. Since the flip plate 8 slowly returns to its original position, the tilted end of the object falls downward at a faster speed than the flip plate 8 returns to its original position. The tilted end will first contact the flip plate 8. At this time, the flip plate 8 is still in an inclined state, so the contact distance between the object and the flip plate 8 is relatively close, which reduces the impact force between the object and the flip plate 8. If the flip plate 8 does not flip and still stays in the initial position, the distance between one end of the object and the flip plate 8 is relatively far, and the free fall motion at this distance makes the impact stronger, resulting in fine scratches on the object.

[0032] It should be noted that the driving assembly includes driving components respectively arranged on both sides of the bending mold 1, and the driving components include a first through hole 15 and a second through hole 16 opened on the bending mold 1, the axes of the first through hole 15 and the second through hole 16 are perpendicular to each other, and the first through hole 15 and the second through hole 16 are connected, and the second movable column 13 movably penetrates the inner wall of the first cavity 5 and then extends outward to the second through hole 16, a first wedge block 17 is provided on the extending end of the second movable column 13, and a lower pressure block 25 is provided on the lower pressure plate 2, and a second wedge block 18 matching the first wedge block 17 is provided at one end of the lower pressure block 25.

[0033] In the present invention, the second wedge block 18 on the lower pressing block 25 is driven by the lower pressing plate 2 to press down the first wedge block 17. The first wedge block 17 drives the second movable column 13 to move toward the first outer sleeve 11. When the punch head 3 touches the object, the first wedge block 17 contacts the second wedge block 18, thereby maintaining synchronous movement.

[0034] It should be noted that the buffer assembly includes buffer components provided on the inner walls opposite to each other on both sides of the arc groove 9, the buffer components include guide holes 19 opened on the arc groove 9, a second outer sleeve 20 is provided in the second cavity 28, the second outer sleeve 20 is sleeved on the outer wall of the guide column 27, the outer wall of the guide column 27 is connected to the inner wall of the second outer sleeve 20 through a compression spring 21, a guide plate 22 is provided at the end of the guide column 27, the end of the guide plate 22 away from the second outer sleeve 20 is chamfered, and two first guide plates 23 are provided at the chamfered end of the guide plate 22, the two first guide plates 23 are respectively located at the upper and lower parts of the guide plate 22, and are symmetrical to each other, and are inclined in the vertical direction along the second outer sleeve 20, and rubber pads are laid on the first guide plate 23, the chamfered end of the guide plate 22 and the inner wall of the arc groove 9 respectively;

[0035] Because the first guide plates 23 are all inclined, the object is placed in the arc groove 9. In the initial state, the object contacts the rubber pad on the inclined surface of the first guide plate 23. When one end of the object is lifted up, the object squeezes the inclined surface of the first guide plate 23 at the lower part of the guide plate 22. The two guide plates 22 move toward the second outer sleeve 20 through the compression springs 21 respectively, so that the object can leave the arc groove 9. Since the position of the object rising and falling will not have a large deviation, it will still enter the arc groove 9. When the object is bent and moves toward the arc groove 9, the object first contacts the first guide plate 23 at the upper part of the guide plate 22, and the guide plate 22 moves toward the second outer sleeve 20 through the guide column 27. When the object falls into the bottom wall of the arc groove 9, the compression spring 21 on the guide plate 22 restores the elastic force until the first guide plate 23 at the lower part of the guide plate 22 contacts the object.

[0036] The present application is suitable for small short objects. When the object is placed in the arc groove 9, the first guide plate 23 at the lower part of the two guide plates 22 contacts the two sides of the object respectively. Therefore, when the punch head 3 is punching and bending the object, if the object tends to slide, the rubber pad of the first guide plate 23 and the rubber pad in the arc groove 9 will act as a friction buffer to offset the force and prevent the object from sliding, thereby causing the bending line to shift. In addition, because of the rubber pad, fine marks will not be generated on the surface of the object.

[0037] It should be noted that two symmetrical second guide plates 24 are provided on the flip plate 8, and the two second guide plates 24 are respectively located on both sides of the arc groove 9, and the second guide plates 24 are inclined in the vertical direction away from the arc groove 9. To avoid some wide objects from deviating during the falling process, the second guide plates 24 of the present invention enable the objects to fall into the arc groove 9.

[0038] It should be noted that the second guide plate 24 is in a convex arc shape to enhance the guiding effect of the object entering the arc groove 9.

[0039] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A bending part forming die, comprising a bending machine, the bending machine comprising a bending die (1) and a lower pressing plate (2), It is characterized in that A bearing plate (4) is provided on the bending die (1), a first cavity (5) is provided in the bearing plate (4), connecting plates (6) are fixedly provided on both sides of the bearing plate (4), the two connecting plates (6) are connected by a fixing column (7), a flip plate (8) is hinged on the fixing column (7), in an initial state, the flip plate (8) and the bearing plate (4) are parallel to each other, a deflection component for driving the flip plate (8) to deflect is provided in the first cavity (5), a driving component for driving the deflection component to work is also provided on the bending die (1), a certain gap is reserved between the flip plate (8) and the bending die (1), an arc groove (9) is provided on the flip plate (8), and the flip plate (8) is provided with a second cavity (28), and the arc groove (9) is also provided with a buffer component for buffering objects; the deflection component includes deflection components respectively arranged on both sides of the carrier plate (4), the deflection component includes a through hole (10) opened on the carrier plate (4), the through hole (10) is connected to the first cavity (5), a first outer sleeve (11) is fixedly arranged on the inner wall of the first cavity (5), the first outer sleeve (11) is sleeved on the outer wall of the first movable column (12), the outer wall of the first movable column (12) is connected to the inner wall of the first outer sleeve (11) through an elastic member that can slowly rebound, and a moving block (26) is provided at the end of the first movable column (12). A second moving column (13) is provided on the side of the moving block (26) away from the moving column, and a support rod (14) is hinged on the moving block (26). The end of the support rod (14) passes through the through hole (10) and is fixedly connected to the flip plate (8), and the end of the support rod (14) is inclined in a direction away from the bending mold (1); the driving assembly includes driving components respectively arranged on both sides of the bending mold (1), and the driving components include a first through hole (15) and a second through hole (16) opened on the bending mold (1), the axes of the first through hole (15) and the second through hole (16) are perpendicular to each other, and the first through hole (15) and the second through hole (16) are connected. The second movable column (13) moves through the inner wall of the first cavity (5) and then extends outward to the second through hole (16). A first wedge block (17) is provided on the extended end of the second movable column (13). A lower pressing block (25) is provided on the lower pressing plate (2). A second wedge block (18) matching with the first wedge block (17) is provided at one end of the lower pressing block (25). Two symmetrical second guide plates (24) are provided on the flip plate (8). The two second guide plates (24) are respectively located on both sides of the arc groove (9). The second guide plates (24) are inclined in the vertical direction away from the arc groove (9). A convex arc shape is formed on the second guide plates (24).

2. A bending part forming die according to claim 1, It is characterized in that The buffer assembly comprises buffer components provided on inner walls opposite to each other on both sides of the arc groove (9), the buffer components comprising guide holes (19) opened on the arc groove (9), a second outer sleeve (20) provided in the second cavity (28), the second outer sleeve (20) being sleeved on the outer wall of the guide column (27), the outer wall of the guide column (27) being connected to the inner wall of the second outer sleeve (20) via a compression spring (21), a guide plate (22) being provided at the end of the guide column (27), the end of the guide plate (22) being rounded at one end away from the second outer sleeve (20), two first guide plates (23) being provided at the rounded end of the guide plate (22), the two first guide plates (23) being respectively located at the upper and lower parts of the guide plate (22), being symmetrical to each other, and being inclinedly arranged in a vertical direction close to the second outer sleeve (20), and rubber pads being respectively laid on the first guide plate (23), the rounded end of the guide plate (22) and the inner wall of the arc groove (9).

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