Automatic bending device for metal connecting sheet

Abstract

The utility model relates to the technical field of bending devices, in particular to an automatic bending device for a metal connecting piece, which comprises a support frame and a support plate arranged on the support frame, a bending upper die is arranged below the support plate, a first bending lower die and a second bending lower die are arranged below the bending upper die, and the first bending lower die and the second bending lower die are arranged on the support plate. And an alternating assembly is arranged below the first bending lower die and the second bending lower die. According to the utility model, the positions of the first bending lower die and the second bending lower die can be alternately exchanged through the arrangement of the alternating assembly, so that the first bending lower die and the second bending lower die respectively carry out feeding, blanking, stamping and bending on the metal connecting sheet, and the feeding and blanking of the metal connecting sheet and the stamping and bending of the metal connecting sheet are separately carried out; and the potential safety hazard that workers are bruised due to the fact that the bending upper die falls down in advance due to the fact that a starting switch is touched by mistake in the feeding and discharging process of the metal connecting piece can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of bending devices, in particular to an automatic bending device for metal connecting pieces. Background Technique

[0002] Automobile wires, also known as low-voltage wires, are different from ordinary household wires. Ordinary household wires are copper single-core wires with a certain hardness. While automobile wires are all copper multi-core soft wires. Some of the soft wires are as thin as hair, and several to dozens of soft copper wires are wrapped in a plastic insulating tube (polyvinyl chloride), which is soft and not easy to break. With the increase of automobile functions and the widespread application of electronic control technology, there are more and more electrical components, and there will also be more and more automobile wires. Automobile wires transmit electrical signals to the electrical and electronic components of the automobile, so that the electrical and electronic components execute instructions. In order to facilitate the connection between the automobile wires and the electrical and electronic components, metal connecting pieces are provided at both ends of the automobile wires. In order to cope with different connection environments and electrical and electronic components, the metal connecting pieces need to have different shapes. Therefore, an automatic bending device is required in the production process of the metal connecting pieces of automobile wires to change the shape of the metal connecting pieces.

[0003] At present, the commonly used automatic bending device for metal connecting pieces is to place the metal connecting piece under the bending device, and then automatically bend the metal connecting piece by stamping. After the metal connecting piece is bent, it needs to be manually removed, and then the next metal connecting piece to be processed is replaced. Although the metal connecting piece can be effectively bent in this way, there is a risk that the worker may accidentally touch the device switch during the process of blanking and loading the metal connecting piece, resulting in the premature start of the device that stops blanking and loading, and there is a potential safety hazard that the worker may be injured. Summary of the Invention

[0004] The purpose of the utility model is to provide an automatic bending device for metal connecting pieces to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] An automatic bending device for metal connecting pieces, including a support frame and a support plate arranged on the support frame. A bending upper die is arranged below the support plate, and a first bending lower die and a second bending lower die are arranged below the bending upper die. An alternating component is arranged below the first bending lower die and the second bending lower die; the alternating component is used to alternately transport the metal connecting pieces on the first bending lower die and the second bending lower die to the lower part of the bending upper die for bending.

[0007] An automatic bending device for metal connecting pieces as described above: The alternating component includes a supporting bottom plate and first and second fixed cross plates arranged on both sides of the upper end face of the supporting bottom plate. A third fixed cross plate is arranged between the first fixed cross plate and the second fixed cross plate. First sliding rails are arranged on the first fixed cross plate and the second fixed cross plate. A first alternating plate is slidably arranged on the first sliding rails through sliders.

[0008] The first bending lower die is arranged on the first alternating plate. A second sliding rail is arranged on the third fixed cross plate. A third connecting plate is slidably arranged on the second sliding rail through a slider. A second alternating plate is arranged above the third connecting plate. The second bending lower die is arranged on the second alternating plate. A lifting component is arranged between the second alternating plate and the third connecting plate. A moving driving component is arranged on the first fixed cross plate.

[0009] An automatic bending device for metal connecting pieces as described above: The lifting component includes a sliding rod inserted into the third connecting plate and a guiding plate arranged between the first fixed cross plate and the second fixed cross plate. One end of the sliding rod is connected to the second alternating plate, and a limiting plate is arranged at the other end of the sliding rod. A guiding groove is formed on the guiding plate, and a cam follower is arranged in the guiding groove. A fourth connecting plate is arranged on the cam follower, and one end of the fourth connecting plate is connected to the second alternating plate.

[0010] An automatic bending device for metal connecting pieces as described above: The moving driving component includes a non-sensing air cylinder arranged on the first fixed cross plate. A transmission plate is arranged on the non-sensing air cylinder. The transmission plate is connected to the first alternating plate. A first connecting plate is arranged on the first alternating plate. A transmission belt is arranged on the first connecting plate. A plurality of transmission wheels are arranged on the transmission belt. The transmission wheels are rotatably connected to the second fixed cross plate. A second connecting plate is arranged on the transmission belt. The second connecting plate is connected to the third connecting plate.

[0011] An automatic bending device for metal connecting pieces as described above: A power component is arranged on the supporting plate. The power component includes a stamping cylinder arranged on the supporting plate. A fixing plate is arranged on the stamping cylinder. The fixing plate is connected to the supporting plate. The output end of the stamping cylinder passes through the supporting plate and is connected to the bending upper die.

[0012] An automatic bending device for metal connecting pieces as described above: Support components are arranged on both the first bending lower die and the second bending lower die. The support component includes a base. A limiting vertical plate is arranged on the upper end face of the base. The bending lower die is located above the limiting vertical plate. A spiral spring is arranged between the bending lower die and the base. Side plates are arranged on the base and are located on both sides of the bending lower die.

[0013] An automatic bending device for a metal connecting piece as described above: The middle part of the upper end surface of the third connecting plate is hollowed out. The cross-section of the guiding groove is high on both sides and low in the middle. The diameter of the cam follower is adapted to the diameter of the guiding groove on the guiding plate.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] Through the setting of the alternating component, the positions of the first bending lower die and the second bending lower die can be alternately interchanged, so that the first bending lower die and the second bending lower die respectively perform feeding and discharging, and stamping and bending on the metal connecting piece. The feeding and discharging of the metal connecting piece and the stamping and bending of the metal connecting piece are carried out separately, which can avoid the safety hazard that the worker is crushed due to the accidental touch of the start switch during the feeding and discharging process of the metal connecting piece, resulting in the premature falling of the bending upper die. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the overall structure of an automatic bending device for a metal connecting piece.

[0017] Figure 2 It is a first perspective three-dimensional view of the alternating component of an automatic bending device for a metal connecting piece.

[0018] Figure 3 It is a second perspective three-dimensional view of the alternating component of an automatic bending device for a metal connecting piece.

[0019] Figure 4 It is a three-dimensional connection diagram of the power component and the bending upper die of an automatic bending device for a metal connecting piece.

[0020] Figure 5 It is a cross-sectional view of the first bending lower die and the supporting component of an automatic bending device for a metal connecting piece.

[0021] Figure 6 For an automatic bending device for a metal connecting piece Figure 3 Enlarged view at A in

[0022] In the figure: 1, support frame; 2, support plate; 3, upper bending die; 4, first lower bending die; 5, second lower bending die; 6, support bottom plate; 7, first fixed cross plate; 8, second fixed cross plate; 9, third fixed cross plate; 10, first slide rail; 11, first alternating plate; 12, second slide rail; 13, third connecting plate; 14, second alternating plate; 15, slide bar; 16, guide plate; 17, limit plate; 18, guide groove; 19, cam follower; 20, fourth connecting plate; 21, non-sensing air cylinder; 22, transmission plate; 23, first connecting plate; 24, transmission belt; 25, transmission wheel; 26, second connecting plate; 27, stamping cylinder; 28, fixing plate; 29, base; 30, limit vertical plate; 31, spiral spring; 32, side plate. Detailed implementation manner

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0024] Please refer to Figures 1 to 6 , as an embodiment of the present invention, the automatic bending device for metal connecting pieces includes a support frame 1 and a support plate 2 arranged on the support frame 1. A lower bending die 3 is arranged below the support plate 2. A first lower bending die 4 and a second lower bending die 5 are arranged below the upper bending die 3. An alternating component is arranged below the first lower bending die 4 and the second lower bending die 5; the alternating component is used to alternately convey the metal connecting pieces on the first lower bending die 4 and the second lower bending die 5 to the lower part of the upper bending die 3 for bending.

[0025] In this embodiment, first, the metal connecting piece to be processed is placed on the first lower bending die 4, and then the alternating component is started. The alternating component conveys the first lower bending die 4 to the lower part of the upper bending die 3, and the second lower bending die 5 will be moved to one side of the first lower bending die 4. At this time, the upper bending die 3 is moved down to squeeze and bend the metal connecting piece on the first lower bending die 4. When the metal connecting piece on the first lower bending die 4 is squeezed and bent, the squeezed and bent metal connecting piece on the second lower bending die 5 is taken off, and the metal connecting piece to be processed is placed on the second lower bending die 5. When the bending of the metal connecting piece on the first lower bending die 4 is completed, the alternating component is started again to realize the position exchange between the second lower bending die 5 and the first lower bending die 4. At this time, the upper bending die 3 is used to squeeze and bend the metal connecting piece on the second lower bending die 5, and the bent metal connecting piece on the first lower bending die 4 is taken off and a new metal connecting piece is placed on the first lower bending die 4, and this can be repeated.

[0026] By setting the alternating components, the positions of the first bending lower die 4 and the second bending lower die 5 can be interchanged, so that the first bending lower die 4 and the second bending lower die 5 can respectively load and unload, and stamp and bend the metal connecting piece. The loading and unloading of the metal connecting piece is carried out separately from the stamping and bending of the metal connecting piece, which can avoid the safety hazard of workers being crushed due to the premature falling of the bending upper die 3 caused by the accidental touch of the starting switch during the loading and unloading process of the metal connecting piece.

[0027] As a further solution of the utility model, the alternating component includes a supporting base plate 6 and a first fixed transverse plate 7 and a second fixed transverse plate 8 arranged on both sides of the upper end surface of the supporting base plate 6, a third fixed transverse plate 9 is arranged between the first fixed transverse plate 7 and the second fixed transverse plate 8, a first slide rail 10 is arranged on the first fixed transverse plate 7 and the second fixed transverse plate 8, a first alternating plate 11 is slidably arranged on the first slide rail 10 through a slider, the first bending lower mold 4 is arranged on the first alternating plate 11, a second slide rail 12 is arranged on the third fixed transverse plate 9, a third connecting plate 13 is slidably arranged on the second slide rail 12 through a slider, a second alternating plate 14 is arranged above the third connecting plate 13, the second bending lower mold 5 is arranged on the second alternating plate 14, a lifting component is arranged between the second alternating plate 14 and the third connecting plate 13, and a moving drive component is arranged on the first fixed transverse plate 7.

[0028] In this embodiment, the metal connecting sheet to be processed is first placed on the second bending lower die 5, and then the moving driving assembly is started. The starting of the moving driving assembly drives the second bending lower die 5 to move toward the first alternating plate 11, and the first alternating plate 11 moves toward the second bending lower die 5. When the second bending lower die 5 is about to contact the first alternating plate 11, the second bending lower die 5 will be lowered under the guidance of the lifting assembly, so that the second bending lower die 5 and the first alternating plate 11 are staggered. When the second bending lower die 5 is about to move to the initial position of the first alternating plate 11, the second bending lower die 5 is raised under the guidance of the lifting assembly until When the second bending lower die 5 and the first alternating plate 11 are in the same horizontal plane and the second bending lower die 5 is located below the bending upper die 3, the metal connecting piece on the second bending lower die 5 can be bent by moving the bending upper die 3 downward. When the first alternating plate 11 is alternately moved to the initial position of the second bending lower die 5, the metal connecting piece on the first alternating plate 11 that has been processed is manually removed, and a new metal connecting piece is placed on the first alternating plate 11. At this time, after the metal connecting piece on the second bending lower die 5 is squeezed and bent, the first alternating plate 11 and the second bending lower die 5 can be alternately positioned again according to the above steps.

[0029] The cooperation between the first slide rail 10 and the slider can reduce the friction between the first alternating plate 11 and the first fixed cross plate 7 and the second fixed cross plate 8. The cooperation between the second slide rail 12 and the slider can reduce the friction between the second alternating plate 14 and the third fixed cross plate 9. This can reduce the wear of the first alternating plate 11 and the second alternating plate 14 during movement, and help extend the service life of the first alternating plate 11 and the second alternating plate 14.

[0030] As a further solution of the present utility model, the lifting assembly includes a slide rod 15 inserted on the third connecting plate 13 and a guide plate 16 arranged between the first fixed cross plate 7 and the second fixed cross plate 8. One end of the slide rod 15 is connected to the second alternating plate 14, and a limit plate 17 is arranged at the other end of the slide rod 15. A guide groove 18 is formed on the guide plate 16, and a cam follower 19 is arranged in the guide groove 18. A fourth connecting plate 20 is arranged on the cam follower 19, and one end of the fourth connecting plate 20 is connected to the second alternating plate 14.

[0031] In this embodiment, when the second alternating plate 14 moves, it will drive the fourth connecting plate 20 to move. The movement of the fourth connecting plate 20 will drive the cam follower 19 to slide in the guide groove 18 on the guide plate 16. The sliding of the cam follower 19 in the guide groove 18 will drive the second alternating plate 14 to float up and down along the slide rod 15. The setting of the slide rod 15 plays a role in restricting the position of the second alternating plate 14. The cooperation between the guide groove 18 and the cam follower 19 enables the second alternating plate 14 to float up and down with the guiding route of the guide groove 18 during movement. The up and down floating of the second alternating plate 14 can avoid the problem of movement conflict between the second bending lower die 5 arranged on the second alternating plate 14 and the first alternating plate 11 on the first bending lower die 4 during movement.

[0032] As a further solution of the present utility model, the moving driving assembly includes a non-sensing air cylinder 21 arranged on the first fixed cross plate 7. A transmission plate 22 is arranged on the non-sensing air cylinder 21, and the transmission plate 22 is connected to the first alternating plate 11. A first connecting plate 23 is arranged on the first alternating plate 11, a transmission belt 24 is arranged on the first connecting plate 23, a plurality of transmission wheels 25 are arranged on the transmission belt 24, the transmission wheels 25 are rotatably connected to the second fixed cross plate 8, a second connecting plate 26 is arranged on the transmission belt 24, and the second connecting plate 26 is connected to the third connecting plate 13.

[0033] In this embodiment, when it is necessary to alternately position the first bending lower die 4 and the second bending lower die 5, the non-inductive cylinder 21 is activated. The activation of the non-inductive cylinder 21 drives the first alternating plate 11 to move through the transmission plate 22. The movement of the first alternating plate 11 drives the transmission belt 24 to rotate on the transmission wheel 25 through the first connecting plate 23. During the rotation of the transmission belt 24, it drives the third connecting plate 13 to move through the second connecting plate 26. The movement of the third connecting plate 13 drives the second alternating plate 14 to move, so that the first alternating plate 11 and the second alternating plate 14 move simultaneously.

[0034] The settings of the non-inductive cylinder 21 and the transmission plate 22 provide kinetic energy for the movement of the first alternating plate 11, and the settings of the first connecting plate 23, the transmission belt 24, and the second connecting plate 26 can transfer the kinetic energy of the movement of the first alternating plate 11 to the second alternating plate 14, so that the first alternating plate 11 and the second alternating plate 14 move towards each other.

[0035] As a further solution of the present utility model, a power assembly is provided on the support plate 2. The power assembly includes a stamping cylinder 27 provided on the support plate 2. An fixing plate 28 is provided on the stamping cylinder 27. The fixing plate 28 is connected to the support plate 2. The output end of the stamping cylinder 27 passes through the support plate 2 and is connected to the bending upper die 3.

[0036] In this embodiment, when it is necessary to bend the metal connecting piece on the first bending lower die 4 or the second bending lower die 5, the stamping cylinder 27 is activated. The activation of the stamping cylinder 27 drives the bending upper die 3 to move towards the metal connecting piece on the first bending lower die 4 or the second bending lower die 5. When the bending upper die 3 contacts the metal connecting piece on the first bending lower die 4 or the second bending lower die 5, the bending upper die 3 will bend the metal connecting piece on the first bending lower die 4 or the second bending lower die 5. After the bending of the metal connecting piece on the first bending lower die 4 or the second bending lower die 5 is completed, the bending upper die 3 can be restored to its original position by the stamping cylinder 27. The stamping cylinder 27 can complete the bending of the metal connecting piece on the first bending lower die 4 or the second bending lower die 5 by moving the bending upper die 3 up and down, making the bending of the metal connecting piece simple and convenient.

[0037] As a further solution of the present utility model, support components are arranged on both the first bending lower die 4 and the second bending lower die 5. The support component includes a base 29, a limiting vertical plate 30 is arranged on the upper end surface of the base 29, the bending lower die is located above the limiting vertical plate 30, a spiral spring 31 is arranged between the bending lower die and the base 29, and side plates 32 are arranged on the base 29 and are located on both sides of the bending lower die. The middle part of the upper end surface of the third connecting plate 13 is in a hollow shape, the cross section of the guiding groove 18 is high on both sides and low in the middle, and the diameter of the cam follower 19 is adapted to the diameter of the guiding groove 18 on the guiding plate 16.

[0038] In this embodiment, when the bending upper die 3 contacts the metal connecting piece on the first bending lower die 4 or the second bending lower die 5, the bending upper die 3 will bend the metal connecting piece on the first bending lower die 4 or the second bending lower die 5. Continuing to press down the bending upper die 3, the bending upper die 3 will move the first bending lower die 4 or the second bending lower die 5 downward along the side plate 32. During the downward movement of the first bending lower die 4 or the second bending lower die 5, the spiral spring 31 is deformed by the force. When the first bending lower die 4 or the second bending lower die 5 moves down to the top of the limiting vertical plate 30, the first bending lower die 4 or the second bending lower die 5 stops moving downward. When the metal connecting piece on the first bending lower die 4 or the second bending lower die 5 is bent and extruded to be completed, the bending upper die 3 is lifted. During the upward movement of the bending upper die 3, the spiral spring 31 pushes the first bending lower die 4 or the second bending lower die 5 to move upward along the side plate 32 until the first bending lower die 4 or the second bending lower die 5 is moved back to its original position.

[0039] The arrangement of the side plate 32 plays a role in limiting the metal connecting piece on the first bending lower die 4 or the second bending lower die 5, preventing the metal connecting piece on the first bending lower die 4 or the second bending lower die 5 from detaching from the first bending lower die 4 or the second bending lower die 5 during processing. The arrangement of the spiral spring 31 enables the first bending lower die 4 or the second bending lower die 5 to have an ascending and descending range, so that the bent metal connecting piece on the first bending lower die 4 or the second bending lower die 5 can rub against the side plate 32, thereby reducing the fitting force between the metal connecting piece and the first bending lower die 4 or the second bending lower die 5, and further making the metal connecting piece on the first bending lower die 4 or the second bending lower die 5 easy to be removed.

[0040] The above embodiments are exemplary and not restrictive. Therefore, without departing from the spirit or basic characteristics of the present utility model, all technical solutions that can implement the present utility model in other specific forms are included in the present utility model.

Claims

1. An automatic bending device for metal connecting pieces, comprising a support frame (1) and a support plate (2) arranged on the support frame (1), characterized in that, A bending upper die (3) is arranged below the support plate (2), a first bending lower die (4) and a second bending lower die (5) are arranged below the bending upper die (3), and an alternating component is arranged below the first bending lower die (4) and the second bending lower die (5); the alternating component is used for alternately conveying the metal connecting pieces on the first bending lower die (4) and the second bending lower die (5) below the bending upper die (3) for bending.

2. The automatic bending device for a metal connecting piece according to claim 1, wherein, The alternating component includes a support bottom plate (6) and a first fixed cross plate (7) and a second fixed cross plate (8) arranged on both sides of the upper end surface of the support bottom plate (6). A third fixed cross plate (9) is arranged between the first fixed cross plate (7) and the second fixed cross plate (8). A first slide rail (10) is arranged on the first fixed cross plate (7) and the second fixed cross plate (8), and a first alternating plate (11) is slidably arranged on the first slide rail (10) through a slider; The first bending lower die (4) is arranged on the first alternating plate (11). A second slide rail (12) is arranged on the third fixed cross plate (9), and a third connecting plate (13) is slidably arranged on the second slide rail (12) through a slider. A second alternating plate (14) is arranged above the third connecting plate (13), and the second bending lower die (5) is arranged on the second alternating plate (14). A lifting component is arranged between the second alternating plate (14) and the third connecting plate (13), and a moving driving component is arranged on the first fixed cross plate (7).

3. The automatic bending device for a metal connecting piece according to claim 2, wherein The lifting component includes a slide bar (15) inserted on the third connecting plate (13) and a guide plate (16) arranged between the first fixed cross plate (7) and the second fixed cross plate (8). One end of the slide bar (15) is connected to the second alternating plate (14), a limiting plate (17) is arranged at the other end of the slide bar (15), a guide groove (18) is formed in the guide plate (16), a cam follower (19) is arranged in the guide groove (18), a fourth connecting plate (20) is arranged on the cam follower (19), and one end of the fourth connecting plate (20) is connected to the second alternating plate (14).

4. The automatic bending device for a metal connecting piece according to claim 2, characterized in that, The moving driving component includes a non-sensing air cylinder (21) arranged on the first fixed cross plate (7), a transmission plate (22) is arranged on the non-sensing air cylinder (21), the transmission plate (22) is connected to the first alternating plate (11), a first connecting plate (23) is arranged on the first alternating plate (11), a transmission belt (24) is arranged on the first connecting plate (23), a plurality of transmission wheels (25) are arranged on the transmission belt (24), the transmission wheels (25) are rotatably connected to the second fixed cross plate (8), a second connecting plate (26) is arranged on the transmission belt (24), and the second connecting plate (26) is connected to the third connecting plate (13).

5. The automatic bending device for a metal connecting piece according to claim 1, wherein, A power assembly is arranged on the support plate (2). The power assembly includes a stamping cylinder (27) arranged on the support plate (2). An fixing plate (28) is arranged on the stamping cylinder (27). The fixing plate (28) is connected to the support plate (2). The output end of the stamping cylinder (27) passes through the support plate (2) and is connected to the bending upper die (3).

6. The automatic bending device for a metal connecting piece according to claim 1, wherein, Support assemblies are arranged on both the first bending lower die (4) and the second bending lower die (5). The support assembly includes a base (29). A limiting vertical plate (30) is arranged on the upper end surface of the base (29). The bending lower die is located above the limiting vertical plate (30). A spiral spring (31) is arranged between the bending lower die and the base (29). Side plates (32) are arranged on the base (29). The side plates (32) are located on both sides of the bending lower die.

7. An automatic bending device for a metal connecting piece according to claim 3, characterized in that, The middle part of the upper end surface of the third connecting plate (13) is hollow. The cross-section of the guiding groove (18) is high at both sides and low in the middle. The diameter of the cam follower (19) is adapted to the diameter of the guiding groove (18) on the guiding plate (16).

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