Conductive copper bar punch forming machine

Abstract

The utility model relates to the technical field of punch forming machines, in particular to a conductive copper bar punch forming machine. Punching and Z-shaped bending profiling machining can be completed at a time, and the punching machining efficiency is greatly improved. Comprising a machine frame, a die base installed on the machine frame, a punching limiting mechanism installed on the machine frame and a bending profiling mechanism, a Z-shaped die groove is formed in the die base, the punching limiting mechanism comprises a first driving cylinder and a first pressing die installed at the output end of the first driving cylinder, and a punch is installed at the bottom of the first pressing die; the bending and profiling mechanism comprises a second driving cylinder and a second pressing die installed at the output end of the second driving cylinder, the Z-shaped die groove comprises a first horizontal end face, a vertical end face and a second horizontal end face, the first pressing die and the first horizontal end face are arranged correspondingly, the second pressing die and the second horizontal end face are arranged correspondingly, and the vertical end face and the second horizontal end face are arranged correspondingly. A pressing wheel is rotationally mounted on the second pressing die; and the pressing wheel is used for Z-shaped bending and profiling treatment of the conductive copper bar.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of punch forming machine, in particular to a conductive copper bar punch forming machine. BACKGROUND

[0002] The conductive copper bar is a kind of large-current conductive product, and is suitable for high-low voltage electrical apparatus, switch contact, power distribution equipment, bus duct and other electrical engineering;To improve the installation convenience, the conductive copper bar is often designed into Z-shaped bending shape.

[0003] Chinese utility model patent CN221414668U discloses a composite copper bar stamping equipment, including the lower die for bearing copper bar, the die groove opened on the lower die, the upper die arranged above the lower die, the punch arranged at the bottom of the upper die, the die groove includes first slot body and second slot body, the side groove wall of first slot body is close to the edge of copper bar and is supported on the edge of copper bar, the two side groove walls of second slot body are supported on the two sides of the middle part of copper bar, the punch includes first punch and second punch, the first punch is located directly above the first slot body, and the second punch is located directly above the second slot body. When the upper die is downwardly punched on the copper bar, the first punch and the second punch can sequentially punch the edge and the inner hole of the copper bar, greatly improving the punching precision and punching efficiency of the copper bar.

[0004] However, the present inventors found that the conductive copper bar needs to be processed by secondary bending and molding after punching processing, and two sets of punching and molding machines are required, and the conductive copper bar needs to be repeatedly fed, which affects the production efficiency of the conductive copper bar and has certain use limitations. UTILITY MODEL CONTENT

[0005] (I) technical problem solved

[0006] In view of the deficiencies of the prior art, the utility model provides a conductive copper bar punch forming machine, which can complete punching and Z-shaped bending and molding processing at a time, greatly improving the punching processing efficiency.

[0007] (II) technical scheme

[0008] In order to achieve the above object, the utility model provides the following technical scheme: a kind of electrically-conductive copper bar stamping forming machine, including rack, the die holder being installed on rack, punching limiting mechanism and bending pressure forming mechanism being installed on rack, Z-shaped die groove is equipped on the die holder, the punching limiting mechanism includes first drive cylinder and the first die that is installed on the output end of first drive cylinder, the bottom of the first die is equipped with punch, Z-shaped die groove is equipped with die hole corresponding with punch arrangement, the bending pressure forming mechanism includes second drive cylinder and the second die that is installed on the output end of second drive cylinder, Z-shaped die groove includes first horizontal end face, vertical end face and second horizontal end face, the first die is correspondingly arranged with first horizontal end face, the second die is correspondingly arranged with second horizontal end face, rotatingly installed pressure roller is on the second die;The pressure roller is used for the Z-shaped bending pressure forming processing of electrically-conductive copper bar;Further, the first horizontal end face is higher than the second horizontal end face, and an excessive chamfer is provided at the junction between the first horizontal end face, the vertical end face and the second horizontal end face;The width of the first die and the second die is consistent with the width of the Z-shaped die groove;The bottom of the pressure roller is tangent to the bottom end surface of the second die, the pressure roller is located on one side of the second die close to the vertical end face, and the width between the vertical section of the outer wall of the pressure roller close to the vertical end face and the vertical end face is the same as the thickness of the electrically-conductive copper bar to be processed.

[0009] Preferably, an L-shaped feeding support is slidingly installed on the rack, an upper feeding die groove is provided on the L-shaped feeding support, the inner bottom wall of the upper feeding die groove is flush with the first horizontal end face, and a push-pull handle is installed on the L-shaped feeding support;Further, the width of the upper feeding die groove is consistent with the width of the electrically-conductive copper bar, and the length of the upper feeding die groove is at least 1 / 2 of the length of the straight copper bar;A sliding groove is provided on the rack, and the L-shaped feeding support is slidingly installed in the sliding groove.

[0010] Preferably, a pneumatic suction cup is installed on the L-shaped feeding support, and the material suction end of the pneumatic suction cup faces the vertical end face;Further, the pneumatic suction cup is used for discharging the electrically-conductive copper bar formed in the Z-shaped die groove.

[0011] Preferably, it further includes a tension spring, one end of the tension spring is connected with the rack, and the other end of the tension spring is connected with the L-shaped feeding support;Further, in the natural state of the tension spring, the L-shaped feeding support is located away from the die holder on the rack.

[0012] Preferably, a mounting hole is provided at the vertical end face of the die holder, an elastic top piece is installed in the mounting hole, the elastic top piece includes a telescopic rod piece and a spring sleeved on the elongated end of the telescopic rod piece, and a ball is rotatably installed at the end of the telescopic rod piece;Further, in the natural elongation state of the spring, the elongated end of the telescopic rod piece is exposed from the vertical end face.

[0013] Preferably, the mold base is provided with a cavity communicating with the mold hole, and the frame is provided with an inclined guide plate located below the cavity.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a conductive copper busbar stamping forming machine, which has the following beneficial effects: the copper strip is placed at the first horizontal end face of the Z-shaped die groove, the output end of the first drive cylinder extends, the punch penetrates the copper strip and is inserted into the die hole, the first die limits and presses the copper strip onto the first horizontal end face, then the second drive cylinder is started, the output end of the second drive cylinder extends, the pressure roller gradually presses the copper strip onto the vertical end face in the next process, and the second die presses the copper strip onto the second horizontal end face. The punching and Z-shaped bending processing of the copper strip can be achieved in one operation, which greatly improves the stamping processing efficiency. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

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

[0018] Figure 3 This is the utility model Figure 2 Schematic diagram of the cross-sectional structure at point AA;

[0019] Figure 4 This is a schematic diagram of the right-side planar structure of this utility model;

[0020] Figure 5 This is a three-dimensional structural diagram of the mold base of this utility model;

[0021] Figure 6 This is the utility model Figure 3 A magnified schematic diagram of the structure at point B in the middle;

[0022] Figure 7 This is a schematic diagram of the three-dimensional structure of the conductive copper busbar processed and formed according to this utility model;

[0023] The following are labels in the attached diagram: 1. Frame; 2. Mold base; 3. Z-shaped mold groove; 4. First drive cylinder; 5. First die; 6. Punch; 7. Mold hole; 8. Second die; 9. First horizontal end face; 10. Vertical end face; 11. Second horizontal end face; 12. Pressure roller; 13. L-shaped feeding support; 14. Feeding mold groove; 15. Push-pull handle; 16. Pneumatic suction cup; 17. Tension spring; 18. Telescopic rod; 19. Spring; 20. Ball bearing; 21. Cavity; 22. Inclined guide plate; 23. Second drive cylinder. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1

[0026] Please see Figures 1-5 This utility model discloses a conductive copper busbar stamping and forming machine, comprising a frame 1, a die base 2 mounted on the frame 1, a punching and limiting mechanism mounted on the frame 1, and a bending and forming mechanism. The die base 2 has a Z-shaped die groove 3. The punching and limiting mechanism includes a first drive cylinder 4 and a first die 5 mounted on the output end of the first drive cylinder 4. A punch 6 is mounted on the bottom of the first die 5. The Z-shaped die groove 3 has die holes 7 corresponding to the punch 6. The bending and forming mechanism includes a second drive cylinder 23 and a second die 8 mounted on the output end of the second drive cylinder 23. The Z-shaped die groove 3 includes a first horizontal end face 9, a vertical end face 10, and a second horizontal end face 11. The first die 5 is correspondingly arranged with the first horizontal end face 9. The pressure mold 8 is correspondingly arranged with the second horizontal end face 11, and the pressure roller 12 is rotatably mounted on the second pressure mold 8; the pressure roller 12 is used for Z-shaped bending and forming of the conductive copper busbar; furthermore, the first horizontal end face 9 is higher than the second horizontal end face 11, and a transition chamfer is provided at the connection between the first horizontal end face 9, the vertical end face 10 and the second horizontal end face 11; the width of the first pressure mold 5 and the second pressure mold 8 both match the width of the Z-shaped mold groove 3; the bottom of the pressure roller 12 is tangent to the bottom end face of the second pressure mold 8, and the pressure roller 12 is located on the side of the second pressure mold 8 near the vertical end face 10. The width between the vertical cut surface of the outer wall of the pressure roller 12 near the vertical end face 10 and the vertical end face 10 is the same as the thickness of the conductive copper busbar to be processed.

[0027] For details, please refer to Figure 3 The mold base 2 is provided with a cavity 21 that communicates with the mold hole 7, and the frame 1 is provided with an inclined guide plate 22 located below the cavity 21.

[0028] The conductive copper busbar stamping machine provided in this embodiment has a tail material generated during punching that falls through cavity 21 to inclined guide plate 22. Under the action of inclined guide plate 22, the tail material slides out from under the frame 1, avoiding the accumulation of tail material under the frame 1 and improving the ease of cleaning the tail material.

[0029] Example 2

[0030] The conductive copper busbar stamping machine provided in Example 1 has been further optimized. For details, please refer to [link / reference]. Figure 1 and Figure 3An L-shaped feeding support 13 is slidably mounted on the frame 1. The L-shaped feeding support 13 is provided with a feeding mold groove 14. The inner bottom wall of the feeding mold groove 14 is flush with the first horizontal end face 9. A push-pull handle 15 is installed on the L-shaped feeding support 13. Furthermore, the width of the feeding mold groove 14 matches the width of the conductive copper busbar, and the length of the feeding mold groove 14 is at least 1 / 2 of the length of the straight copper busbar. A sliding groove is provided on the frame 1, and the L-shaped feeding support 13 is slidably mounted in the sliding groove.

[0031] For details, please refer to Figure 3 or Figure 4 A pneumatic suction cup 16 is installed on the L-shaped feeding support 13, with the suction end of the pneumatic suction cup 16 facing the vertical end face 10; furthermore, the pneumatic suction cup 16 is used for unloading conductive copper busbars formed in the Z-shaped mold groove 3.

[0032] For details, please refer to Figure 3 It also includes a tension spring 17, one end of which is connected to the frame 1, and the other end of which is connected to the L-shaped feeding support 13; furthermore, in its natural state, the tension spring 17 is positioned on the frame 1 away from the mold base 2.

[0033] For details, please refer to Figure 6 The vertical end face 10 of the mold base 2 is provided with a mounting hole, and an elastic top member is installed in the mounting hole. The elastic top member includes a telescopic rod 18 and a spring 19 sleeved on the extended end of the telescopic rod 18. A ball bearing 20 is rotatably installed at the end of the telescopic rod 18. Furthermore, in the naturally extended state of the spring 19, the extended end of the telescopic rod 18 is exposed from the vertical end face 10.

[0034] The conductive copper busbar stamping machine provided in this embodiment places the copper strip into the feeding mold groove 14, pushes the L-shaped feeding support 13 towards the mold base 2 until the copper strip is inserted into the first horizontal end face 9 of the Z-shaped mold groove 3, and after the first die 5 punches and limits the copper strip, the operator pulls the push-pull handle 15, and the L-shaped feeding support 13 resets, thus realizing the feeding of the copper strip; after the conductive copper busbar is stamped, the L-shaped feeding support 13 is pushed towards the mold base 2 again until the air... The suction end of the pneumatic suction cup 16 contacts the vertical end face 10 of the conductive copper busbar. The pneumatic suction cup 16 is connected to an external negative pressure air source. The conductive copper busbar is attracted by the pneumatic suction cup 16, and after pulling the L-shaped feeding support 13 away from the mold base 2, the formed conductive copper busbar is unloaded. This avoids the operator from feeding copper strips or unloading formed conductive copper busbars below the first drive cylinder 4 and the second drive cylinder 23, preventing accidental hand injuries and improving operational safety. The tension spring 17 can push the L-shaped feeding support... The seat 13 automatically resets under no-force conditions, preventing the L-shaped feeding support 13 from being located below the second die 8 during the bending and forming of the copper strip, thus avoiding interference with the downward movement of the second die 8; and further improving the ease of operation for the operator; when the copper strip is pressed into the Z-shaped mold groove 3, the friction between the copper strip and the inner wall of the Z-shaped mold groove 3 increases after the copper strip is deformed, while the extended end of the elastic ejector 18 shortens during the bending and forming process of the copper strip, and the spring 19 is compressed. After the conductive copper busbar is pressed into shape, The first die 5 and the second die 8 are reset. Under the elastic force of the spring 19, the extended end of the telescopic rod 18 extends, pushing the formed conductive copper busbar out of the Z-shaped mold groove 3, so as to improve the smoothness of the unloading of the formed conductive copper busbar in the Z-shaped mold groove 3, so that the pneumatic suction cup 16 can smoothly unload the formed conductive copper busbar in the Z-shaped mold groove 3; while the ball bearing 20 can reduce the friction between the copper strip and the telescopic rod 18 during the bending and forming process of the copper strip, and prevent the extended end of the telescopic rod 18 from scratching the outer wall of the copper strip.

[0035] In use, the copper strip is placed into the feeding mold groove 14. The operator holds the push-pull handle 15 and pushes the L-shaped feeding support 13 towards the mold base 2 until the copper strip is inserted into the first horizontal end face 9 of the Z-shaped mold groove 3. The output end of the first drive cylinder 4 extends, and the punch 6 penetrates the copper strip and inserts into the mold hole 7. The first pressure mold 5 limits and presses the copper strip onto the first horizontal end face 9. Under the action of the tension spring 17, the L-shaped feeding support 13 resets. Then, the second drive cylinder 23 starts, and the output end of the second drive cylinder 23 extends, and the pressure roller 12 moves to the next... During the process, the copper strip is gradually pressed onto the vertical end face 10, while the second mold 8 presses the copper strip onto the second horizontal end face 11. The first drive cylinder 4 and the second drive cylinder 23 respectively drive the first mold 5 and the second mold 8 to reset, and push the L-shaped feeding support 13 to move towards the mold base 2 again until the pneumatic suction cup 16 adsorbs the formed conductive copper busbar. Under the suction force of the pneumatic suction cup 16 and the elastic force of the elastic top piece, the formed conductive copper busbar moves out of the Z-shaped mold groove 3. After the L-shaped feeding support 13 resets again, the formed conductive copper busbar can be unloaded.

[0036] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An electrically conductive copper busbar press forming machine characterized by; The utility model relates to a Z type copper bar bending and pressing mechanism, including frame (1), the die holder (2) of installation on frame (1), punch limiting mechanism and bending and pressing mechanism of installation on frame (1), be equipped with Z type die groove (3) on the die holder (2), punch limiting mechanism includes first drive cylinder (4) and installs first pressure die (5) on the output end of first drive cylinder (4), the bottom of first pressure die (5) is equipped with punch (6), Z type die groove (3) is equipped with die hole (7) corresponding arrangement with punch (6), the bending and pressing mechanism includes second drive cylinder (23) and installs second pressure die (8) on the output end of second drive cylinder (23), Z type die groove (3) includes first horizontal end face (9), vertical end face (10) and second horizontal end face (11), first pressure die (5) is correspondingly arranged with first horizontal end face (9), second pressure die (8) is correspondingly arranged with second horizontal end face (11), the second pressure die (8) is rotatably installed with pressure wheel (12), the pressure wheel (12) is used for the Z type bending and pressing processing of conductive copper bar.

2. The electrically conductive copper busbar punch press machine of claim 1, wherein, The L-shaped feeding support (13) is slidably installed on the frame (1), and the L-shaped feeding support (13) is provided with a feeding die groove (14); the inner bottom wall of the feeding die groove (14) is flush with the first horizontal end face (9); and the L-shaped feeding support (13) is provided with a push-pull handle (15).

3. The electrically conductive copper busbar punch press machine of claim 2, wherein, The L-shaped feeding support (13) is provided with a pneumatic suction cup (16), and the suction end of the pneumatic suction cup (16) faces the vertical end face (10).

4. The electrically conductive copper busbar press forming machine according to claim 2 or 3, characterized in that, The L-shaped feeding support (13) is provided with a pneumatic suction cup (16), and the suction end of the pneumatic suction cup (16) faces the vertical end face (10).

5. The electrically conductive copper busbar punch press machine of claim 2, wherein, The vertical end face (10) of the die holder (2) is provided with a mounting hole, and an elastic top piece is mounted in the mounting hole; the elastic top piece comprises a telescopic rod (18) and a spring (19) sleeved on the elongated end of the telescopic rod (18); and the end of the telescopic rod (18) is rotatably provided with a ball (20).

6. The electrically conductive copper busbar punch press machine of claim 1, wherein, The die holder (2) is provided with a cavity (21) communicating with the die hole (7), and the frame (1) is provided with an inclined guide plate (22) located below the cavity (21).

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