Punching device

Abstract

The utility model discloses a punching device which comprises an upper die and a lower die which are oppositely arranged, a male die, a punching assembly and an elastic material pressing assembly, and the side, opposite to the lower die, of the upper die is a punching face. In the length direction of the upper die, the punching assembly and the elastic material pressing assembly are sequentially connected with the punching face. The male die is connected with the lower die and arranged opposite to the elastic material pressing assembly. A punching table is further arranged on the lower die, a punching space is defined by the punching table, the lower die and the side wall of the male die, and the punching assembly and the punching space are oppositely arranged; when the upper die is separated from the lower die, the distance between the elastic pressing assembly and the punching face is larger than the distance between the punching assembly and the punching face. When the upper die and the lower die are closed, the distance between the elastic pressing assembly and the punching face is smaller than or equal to the distance between the punching assembly and the punching face. Abrasion of the punching assembly can be reduced, and the service life of the punching assembly can be prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle part processing, in particular to a punching device. Background Art

[0002] For vehicle guide rails, due to different requirements of customers for product structures, after the guide rails are extruded and bent into shape, the guide rails still need to be punched. At present, in order to meet the shaping requirements of some guide rail products, the guide rails need to be fed along the length direction of the punching die, resulting in a relatively large overall volume of the punching die. And in the existing punching die, during the die closing process, the punching assembly directly punches the guide rail product, making the punching assembly in the punching die prone to wear and then being damaged. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is: to provide a punching device, while reducing the overall volume of the punching die, reducing the probability of damage to the punching assembly.

[0004] In order to solve the above technical problem, the technical solution adopted by the utility model is:

[0005] A punching device includes an upper die and a lower die which are oppositely arranged. The side of the upper die facing the lower die is a punching surface, and further includes a punch, a punching assembly and an elastic blank holding assembly;

[0006] In the length direction of the upper die, the punching assembly and the elastic blank holding assembly are sequentially connected to the punching surface;

[0007] The punch is connected to the lower die and is oppositely arranged with the elastic blank holding assembly;

[0008] A punching table is further arranged on the lower die. The side walls of the punching table, the lower die and the punch enclose a punching space, and the punching assembly is oppositely arranged with the punching space;

[0009] When the upper die is separated from the lower die, the distance between the elastic blank holding assembly and the punching surface is greater than the distance between the punching assembly and the punching surface;

[0010] When the upper die and the lower die are closed, the distance between the elastic blank holding assembly and the punching surface is less than or equal to the distance between the punching assembly and the punching surface.

[0011] Further, the elastic blank holding assembly includes an elastic member and a downward pressing assembly;

[0012] The downward pressing assembly is movably connected to the upper die through the elastic member, so that the distance between the downward pressing assembly and the punching surface can change;

[0013] The side wall of the pressing-down component abuts against the punching component.

[0014] Further, the pressing-down component includes a blank-holding plate and a blank-holder fixing seat;

[0015] The blank-holding plate is connected to the elastic member through the blank-holder fixing seat;

[0016] The blank-holding plate is disposed opposite to the punch.

[0017] Further, it further includes an upper die fixing plate;

[0018] The elastic member passes through the upper die fixing plate and is connected to the upper die, and the pressing-down component can abut against the upper die fixing plate.

[0019] Further, it further includes a first limiting component and a second limiting component;

[0020] In the length direction of the upper die, the first limiting component and the second limiting component are disposed opposite to each other to form a limiting space for limiting the profile to be punched.

[0021] Further, the first limiting component is located between the punching component and the punching space;

[0022] The second limiting component is located between the elastic blank-holding component and the punch;

[0023] When the upper die and the lower die are closed, the second limiting component, the elastic blank-holding component and the punch enclose to form a receiving cavity for receiving the profile to be punched.

[0024] Further, it further includes a guide post;

[0025] The upper die and the lower die are connected to be relatively movable through the guide post, and the upper die can slide relative to the guide post.

[0026] Further, it further includes a supporting component for supporting the profile to be punched;

[0027] The supporting component is connected to one side in the width direction of the lower die.

[0028] Further, the supporting component includes an extension frame and a supporting frame;

[0029] The extension frame is connected to one side in the width direction of the lower die and extends away from the lower die, and the supporting frame is disposed on the extension frame.

[0030] Further, it further includes an elastic limiting component;

[0031] There are at least two sets of symmetrically arranged elastic limiting components between the upper die and the lower die.

[0032] The beneficial effects of the present utility model are as follows: By providing a compressible elastic blank-holding component, the profile to be punched can be limited first during the mold closing process of the upper die and the lower die. As the upper die and the lower die get closer, the downward pressure of the elastic blank-holding component increases, making the profile stable on the punch, so that when the punching component moves downward with the upper die and contacts the profile to be punched, the profile can be punched quickly and stably, avoiding unnecessary collisions between the profile and the punching component during the punching process, which may cause wear to the punching component, playing a role in protecting the punching component and reducing the probability of damage to the punching component. In addition, since the punching component and the elastic blank-holding component are arranged in sequence along the length direction of the upper die, the profile to be punched is fed along the width direction of the punching device, reducing the overall volume of the punching device and thus occupying less space. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a schematic structural diagram of the punching device in the present utility model;

[0034] Figure 2 is Figure 1 a top view of

[0035] Figure 3 is Figure 2 a sectional view taken along the A-A plane in Figure 1 ;

[0036] Figure 4 is Figure 3 an enlarged view of part A in

[0037] Figure 5 is Figure 2 a sectional view taken along the A-A plane in Figure 2 ;

[0038] Figure 6 is a schematic partial structural diagram of the punching device in the present utility model.

[0039] Reference numerals description:

[0040] 1. Upper die; 11. Punching surface; 12. Upper die fixing plate;

[0041] 2. Lower die; 21. Punching table;

[0042] 3. Punch; 31. Body; 32. Protruding part;

[0043] 4. Punching component; 41. Relief notch;

[0044] 5. Elastic blank-holding component; 51. Elastic member; 52. Lower pressing component; 521. Pressure plate; 522. Pressure plate fixing seat;

[0045] 6. Punching space;

[0046] 7. First limiting component; 71. First limiting piece; 72. Limiting fixing seat;

[0047] 8. Second limiting component; 80. Limiting space;

[0048] 9. Guide pillar; 10. Support component; 101. Extension frame; 102. Support frame; 103. Support part;

[0049] 20. Pressing component;

[0050] 30. Elastic limiting component; 301. Limiting spring; 302. Limiting column;

[0051] 40. Profile to be punched. Specific embodiments

[0052] To describe in detail the technical content, achieved objectives and effects of the present utility model, the following is described in conjunction with the embodiments and with reference to the drawings.

[0053] Please refer to Figures 1 - 6 , a punching device, comprising an upper die 1 and a lower die 2 arranged oppositely, the upper die 1 Orientation One side of the lower die 2 is a punching surface 11, and further comprising a punch 3, a punching component 4 and an elastic blank holding component 5; in the length direction of the upper die 1, the punching component 4 and the elastic blank holding component 5 are sequentially connected to the punching surface 11; the punch 3 is connected to the lower die 2 and is arranged oppositely to the elastic blank holding component 5; a punching table 21 is further arranged on the lower die 2, and the punching table 21, the lower die 2 and the side walls of the punch 3 enclose a punching space 6, and the punching component 4 is arranged oppositely to the punching space 6; when the upper die 1 and the lower die 2 are separated, the distance between the elastic blank holding component 5 and the punching surface 11 is greater than the distance between the punching component 4 and the punching surface 11; when the upper die 1 and the lower die 2 are closed, the distance between the elastic blank holding component 5 and the punching surface 11 is less than or equal to the distance between the punching component 4 and the punching surface 11.

[0054] It can be understood that by setting the elastic pressure component 5 that can be compressed, during the process of the upper die 1 and the lower die 2 being closed, the profile 40 to be punched can be limited first. As the upper die 1 and the lower die 2 get closer, the downward pressure of the elastic pressure component 5 increases, making the profile stable on the punch 3. When the punching component 4 moves down with the upper die 1 and contacts the profile 40 to be punched, the profile can be punched quickly and stably, avoiding unnecessary collisions between the profile and the punching component 4 due to the shaking of the profile during the punching process, which may cause wear of the punching component 4, playing a role in protecting the punching component 4 and reducing the probability of damage to the punching component 4. In addition, since the punching component 4 and the elastic pressure component 5 are arranged in sequence along the length direction of the upper die 1, the profile 40 to be punched is fed along the width direction of the punching device, reducing the overall volume of the punching device and thus occupying less space. Among them, the punching table 21 also plays a role in limiting the punching component 4.

[0055] In some embodiments, the elastic pressure component 5 includes an elastic member 51 and a downward pressure component 52; the downward pressure component 52 is connected to the upper die 1 through the elastic member 51 so as to be relatively movable, enabling the distance between the downward pressure component 52 and the punching surface 11 to change; the side wall of the downward pressure component 52 abuts against the punching component 4. Preferably, the elastic member 51 is a compression spring. By setting the elastic member 51, it can exert pressure on the downward pressure component 52 and drive the downward pressure component 52 to reset, providing sufficient space for the downward pressure component 52 to move. Specifically, during the process of the upper die 1 and the lower die 2 being closed, when the downward pressure component 52 contacts the punch 3, as the upper die 1 continues to press down, the elastic member 51 is compressed, the pressure of the downward pressure component 52 on the profile increases, the profile remains stable, and then the punching component 4 punches the part of the profile protruding outside the punching space 6. After punching is completed, as the upper die 1 and the lower die 2 separate, the elastic member 51 elongates, and the downward pressure component 52 gradually moves away from the punch 3.

[0056] In some embodiments, the downward pressure component 52 includes a pressure plate 521 and a pressure plate fixing seat 522; the pressure plate 521 is connected to the elastic member 51 through the pressure plate fixing seat 522; the pressure plate 521 is arranged opposite to the punch 3.

[0057] In some embodiments, it further includes an upper die fixing plate 12; the elastic member 51 passes through the upper die fixing plate 12 and is connected to the upper die 1, and the downward pressure component 52 can abut against the upper die fixing plate 12. Through the setting of the upper die fixing plate 12, a larger accommodation space is provided for the elastic member 51, and the stability of the elastic member 51 is improved. In addition, it can also play a role in limiting the downward pressure component 52.

[0058] In some embodiments, it further includes a first limiting component 7 and a second limiting component 8; in the length direction of the upper die 1, the first limiting component 7 and the second limiting component 8 are oppositely arranged to form a limiting space 80 for limiting the profile 40 to be punched. By setting the first limiting component 7 and the second limiting component 8, the profile 40 to be punched can be limited in the length direction of the upper die 1. Cooperating with the vertical limiting of the elastic blank-holding component 5, it can improve the stability of the profile 40 to be punched and further reduce the damage caused by the profile 40 to be punched to the punching component 4. In addition, a relief notch 41 is provided at the position of the punching component 4 opposite to the first limiting component 7. The relief notch 41 matches the first limiting component 7 to play a relief role, avoiding interference of the first limiting component 7 with the punching component 4 and preventing the punching component 4 from over-punching.

[0059] Among them, the first limiting component 7 includes a first limiting member 71 and a limiting fixing seat 72. The first limiting member 71 is detachably connected to the limiting fixing seat 72, and at least part of the first limiting member 71 protrudes outside the limiting fixing seat 72. The protruding part of the first limiting member 71 is arranged opposite to the punching component 4.

[0060] In some embodiments, the first limiting component 7 is located between the punching component 4 and the punching space 6; the second limiting component 8 is located between the elastic blank-holding component 5 and the punch 3; when the upper die 1 and the lower die 2 are closed, the second limiting component 8, the elastic blank-holding component 5 and the punch 3 enclose to form a receiving cavity for accommodating the profile 40 to be punched. Specifically, the punch 3 includes a body 31 and a protruding portion 32 extending towards the side where the upper die 1 is located. A concave space is formed between the protruding portion 32 and the side of the body 31 facing the upper die 1, and the second limiting component 8 is arranged opposite to the protruding portion 32. The receiving cavity is enclosed between the protruding portion 32, the second limiting component 8 and the elastic blank-holding component 5, so that the profile is limited in both the horizontal and vertical directions, improving the stability of the profile.

[0061] In some embodiments, it further includes a guide post 9; the upper die 1 and the lower die 2 are relatively movably connected through the guide post 9, and the upper die 1 can slide relative to the guide post 9. The setting of the guide post 9 can improve the stability when the upper die 1 and the lower die 2 move relative to each other.

[0062] In some embodiments, it further includes a support component 10 for supporting the profile 40 to be punched; the support component 10 is connected to one side of the lower die 2 in the width direction. The setting of the support component 10 is used to lock the profile 40 to be punched, and then limit the profile in the width direction of the upper die 1. On this basis, the profile is restricted in the width direction, length direction and vertical direction of the upper die 1, having good stability, avoiding the profile from shaking during the contact with the punching component 4, and being able to protect the punching component 4.

[0063] In some embodiments, the support assembly 10 includes an extension frame 101 and a support frame 102; the extension frame 101 is connected to one side of the lower die 2 in the width direction and extends away from the lower die 2, and the support frame 102 is arranged on the extension frame 101. The extension frame 101 is provided to adapt to the length of the profile, and thus can lock the profile to improve the stability of the profile. Some profiles such as glass guide rails have a curvature. A support portion 103 is provided at one end of the extension frame 101 away from the lower die 2, and the support portion 103 extends vertically upward, so that the curved profile can be placed obliquely, further reducing the volume of the punching device. The support frame 102 is provided to support the profile on the one hand and lock the profile on the other hand. Specifically, pressing components 20 are arranged on the support frame 102 and at one end of the extension frame 101 away from the lower die 2, and the profile is positioned and locked by the pressing components 20.

[0064] In some embodiments, an elastic limit assembly 30 is further included; there are at least two sets of symmetrically arranged elastic limit assemblies 30 between the upper die 1 and the lower die 2, which are used to play a buffering role between the upper die 1 and the lower die 2. Specifically, the elastic limit assembly 30 includes a limit spring 301 and a limit post 302; the limit spring 301 is sleeved outside the limit post 302, and the limit post 302 is connected to the lower die 2 and is located between the upper die 1 and the lower die 2. Preferably, two sets of elastic limit assemblies 30 are respectively arranged at both ends in the length direction of the punching device, and the elastic limit assemblies 30 at both ends in the length direction of the punching device are symmetrically arranged.

[0065] Please refer to Figures 1 - 6 , Embodiment 1 of the present utility model is:

[0066] A punching device comprises an upper die 1 and a lower die 2 which are arranged opposite to each other, wherein one side of the upper die 1 and the lower die 2 which are arranged opposite to each other is a punching surface 11, and further comprises a punch 3, a punching assembly 4, an elastic pressing assembly 5 and an upper die fixing plate 12; in the length direction of the upper die 1, the punching assembly 4 and the elastic pressing assembly 5 are connected to the punching surface 11 in sequence; the punch 3 is connected to the lower die 2 and is arranged opposite to the elastic pressing assembly 5; a punching table 21 is also arranged on the lower die 2, and the punching table 21, the lower die 2 and the side walls of the punch 3 together form a punching space 6, and the punching assembly 4 is arranged opposite to the punching space 6; when the upper die 1 and the lower die 2 are separated, the distance d between the elastic pressing assembly 5 and the punching surface 11 is greater than the distance h between the punching assembly 4 and the punching surface 11; when the upper die 1 and the lower die 2 are closed, the distance d between the elastic pressing assembly 5 and the punching surface 11 is less than or equal to the distance h between the punching assembly 4 and the punching surface 11. Specifically, during the closing process of the upper mold 1 and the lower mold 2, there will be a moment when the distance between the elastic pressing component 5 and the punching surface 11 is equal to the distance between the punching component 4 and the punching surface 11; when the upper mold 1 and the lower mold 2 are completely closed, the distance between the elastic pressing component 5 and the punching surface 11 is smaller than the distance between the punching component 4 and the punching surface 11, so that the punching component 4 can punch the profile.

[0067] In this embodiment, the elastic pressing assembly 5 includes an elastic member 51 and a pressing assembly 52; the pressing assembly 52 is relatively movably connected to the upper mold 1 plate through the elastic member 51, so that the distance between the pressing assembly 52 and the punching surface 11 can be changed; the side wall of the pressing assembly 52 abuts against the punching assembly 4. Preferably, the elastic member 51 is a compression spring. Specifically, a pressing plate 521 and a pressing plate fixing seat 522; the pressing plate 521 is connected to the elastic member 51 through the pressing plate fixing seat 522; the pressing plate 521 is arranged opposite to the punch 3. The elastic member 51 passes through the upper mold fixing plate 12 and is connected to the upper mold 1, and the pressing assembly 52 can be pressed against the upper mold fixing plate 12.

[0068] In this embodiment, a first limiting assembly 7 and a second limiting assembly 8 are also included; in the length direction of the upper die 1, the first limiting assembly 7 and the second limiting assembly 8 are arranged relative to each other to form a limiting space 80 for limiting the position of the profile 40 to be punched; a clearance notch 41 is arranged at a position where the punching assembly 4 is relative to the first limiting assembly 7. The first limiting assembly 7 includes a first limiting member 71 and a limiting fixing seat 72, the first limiting member 71 is detachably connected to the limiting fixing seat 72, and the first limiting member 71 at least partially protrudes outside the limiting fixing seat 72, and the protruding portion of the first limiting member 71 is arranged relative to the punching assembly 4.

[0069] In this embodiment, the first limiting component 7 is located between the punching component 4 and the punching space 6; the second limiting component 8 is located between the elastic blank-holding component 5 and the punch 3; when the upper die 1 and the lower die 2 are closed, the second limiting component 8, the elastic blank-holding component 5 and the punch 3 enclose a receiving cavity for receiving the profile 40 to be punched. Specifically, the punch 3 includes a body 31 and a protruding portion 32 extending towards the side where the upper die 1 is located. A concave space is formed between the protruding portion 32 and the side of the body 31 facing the upper die 1, and the second limiting component 8 is disposed opposite to the protruding portion 32. The receiving cavity is enclosed between the protruding portion 32, the second limiting component 8 and the elastic blank-holding component 5.

[0070] In this embodiment, a guide post 9 is further included; the upper die 1 and the lower die 2 are movably connected relative to each other through the guide post 9, and the upper die 1 can slide relative to the guide post 9.

[0071] In this embodiment, a support component 10 for supporting the profile 40 to be punched is further included; the support component 10 is connected to one side in the width direction of the lower die 2. The support component 10 includes an extension frame 101 and a support frame 102; the extension frame 101 is connected to one side in the width direction of the lower die 2 and extends away from the lower die 2, and the support frame 102 is disposed on the extension frame 101. Specifically, pressing components 20 are provided on the support frame 102 and at the end of the extension frame 101 away from the lower die 2, and the profile is positioned and locked through the pressing components 20.

[0072] In this embodiment, an elastic limiting component 30 is further included; there are at least two groups of symmetrically arranged elastic limiting components 30 between the upper die 1 and the lower die 2, which are used to play a buffering role between the upper die 1 and the lower die 2. Specifically, the elastic limiting component 30 includes a limiting spring 301 and a limiting post 302; the limiting spring 301 is sleeved outside the limiting post 302, and the limiting post 302 is connected to the lower die 2 and is located between the upper die 1 and the lower die 2.

[0073] The working principle of the present utility model is as follows:

[0074] When the upper die 1 and the lower die 2 are in a separated state, a part of the profile 40 to be punched is extended between the upper die 1 and the lower die 2, so that this part of the profile 40 to be punched is located within the limiting space 80, and there is still a part of the profile 40 to be punched within the receiving cavity, and both sides in the width direction of the profile 40 to be punched are respectively pressed against the first limiting component 7 and the second limiting component 8;

[0075] And the other part of the profile 40 to be punched is placed on the support component 10 and the profile 40 to be punched is locked;

[0076] During the process of the upper die 1 being combined with the lower die 2, when the downward pressing component 52 contacts the profile 40 to be punched, as the upper die 1 continues to move downward, the elastic member 51 is compressed, and the downward pressing component 52 remains tightly pressed against the profile 40 to be punched. At the same time, as the upper die 1 continues to move downward, the punching component 4 punches the profile, and after continuously moving to a position where it abuts against the punching table 21, it stops moving to complete the punching.

[0077] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A punching device, comprising an upper die and a lower die which are oppositely arranged, wherein one side of the upper die facing the lower die is a punching surface, and it is characterized in that It further includes a punch, a punching component and an elastic blank-holding component; In the length direction of the upper die, the punching component and the elastic blank-holding component are sequentially connected to the punching surface; The punch is connected to the lower die and is disposed opposite to the elastic blank-holding component; A punching table is further provided on the lower die, and a punching space is formed by enclosing the side walls of the punching table, the lower die and the punch, and the punching component is disposed opposite to the punching space; When the upper die is separated from the lower die, the distance between the elastic blank-holding component and the punching surface is greater than the distance between the punching component and the punching surface; When the upper die and the lower die are closed, the distance between the elastic blank-holding component and the punching surface is less than or equal to the distance between the punching component and the punching surface.

2. The punching device according to claim 1, wherein The elastic blank-holding component includes an elastic member and a downward pressing component; The downward pressing component is movably connected to the upper die through the elastic member, so that the distance between the downward pressing component and the punching surface can be changed; The side wall of the downward pressing component abuts against the punching component.

3. The punching device according to claim 2, characterized in that, The downward pressing component includes a blank-holding plate and a blank-holding plate fixing seat; The blank-holding plate is connected to the elastic member through the blank-holding plate fixing seat; The blank-holding plate is disposed opposite to the punch.

4. The punching device according to claim 2, characterized in that, It further includes an upper die fixing plate; The elastic member passes through the upper die fixing plate and is connected to the upper die, and the downward pressing component can abut against the upper die fixing plate.

5. A punching device according to claim 1, characterized in that, It further includes a first limiting component and a second limiting component; In the length direction of the upper die, the first limiting component and the second limiting component are disposed opposite to each other to form a limiting space for limiting the profile to be punched; 6. The punching device according to claim 5, wherein, The first limiting component is located between the punching component and the punching space; The second limiting component is located between the elastic blank-holding component and the punch; When the upper die and the lower die are closed, the second limiting component, the elastic blank-holding component and the punch enclose to form a receiving cavity for receiving the profile to be punched.

7. The punching device according to claim 1, wherein, It further includes a guide post; The upper die and the lower die are movably connected to each other through the guide post, and the upper die can slide relative to the guide post.

8. An impact cutting device according to claim 1, wherein, It further includes a supporting component for supporting the profile to be punched; The supporting component is connected to one side in the width direction of the lower die.

9. The punching device according to claim 8, characterized in that, The supporting component includes an extending frame and a supporting frame; The extending frame is connected to one side in the width direction of the lower die and extends in a direction away from the lower die, and the supporting frame is disposed on the extending frame.

10. A punching device according to claim 1, characterized in that, It further includes an elastic limiting component; There are at least two groups of symmetrically arranged elastic limiting components between the upper die and the lower die.

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