A punching die for the right instrument panel end cover of a new energy vehicle

Abstract

This invention discloses a punching die for the right instrument panel end cover of a new energy vehicle, belonging to the field of punching die technology. It includes an upper die base and a lower die base, with a punch and a die respectively mounted on the upper and lower die bases. The upper die base is fixedly mounted on a hydraulic cylinder, and several guide rods are fixedly mounted on the lower die base. The upper die base is slidably mounted on the guide rods. Several limiting rods are provided through the upper die base, with tapered rods at the bottom of each limiting rod. A fastening mechanism is provided at the upper end of the upper die base. This invention, by setting limiting rods and tapered rods, not only ensures the stability of the connection between the punch and the upper die base during initial installation, but also, if the punch becomes loose, the fastening mechanism allows multiple tapered rods to simultaneously press against the mounting piece, thereby improving the convenience and efficiency of the punch fastening operation.

Description

Technical Field

[0001] This invention belongs to the field of punching die technology, and in particular relates to a punching die for the right instrument panel end cover of a new energy vehicle. Background Technology

[0002] The punching die for the right instrument panel end cover of new energy vehicles is a precision industrial mold specifically designed for manufacturing the right end cover component of the instrument panel of new energy vehicles. Its core function is to rapidly process metal or non-metal sheets (such as aluminum alloys, engineering plastics, composite materials, etc.) into instrument panel end cover parts that meet design requirements through stamping processes (punching, forming, etc.).

[0003] In the prior art, patent CN214773471U discloses a punching die for automotive interior parts, including a fixed base, a base provided at the upper end of the fixed base, a die fixed at the top of the die, a fixing component provided at the top of the base and on one side of the die, a sealing cover provided at the top of the fixing component, a slide cylinder fixed at the top of the fixed base, a fixing column fixed at the bottom of the base, a sliding column provided inside the slide cylinder, a rotating groove provided at the top of the sliding column, and a rotating rod provided inside the rotating groove. This punching die for automotive interior parts, by incorporating a slide cylinder, a rotating rod, and a first shock-absorbing spring, achieves good shock absorption, facilitates the stability of the base, and makes the device work more stably. By incorporating a locking seat, a rotating shaft, and a pull handle, the locking seat and locking rod can be fixed to prevent the sealing cover from moving and to prevent affecting the shape and quality of the foamed parts.

[0004] The problem with existing technology is that the traditional method of installing the punch is relatively simple, relying only on conventional fasteners. After long-term high-intensity punching operations, two problems are likely to occur: firstly, the punch is very easy to loosen; secondly, re-tightening the punch often requires a lot of time to check the fasteners one by one and then tighten the loose fasteners, which seriously affects the production progress. Summary of the Invention

[0005] To address the problems existing in the prior art, this invention provides a punching die for the right instrument panel end cover of a new energy vehicle. It has the advantages of high punch installation stability and more efficient and convenient punch fastening operation. It solves the problem that the prior art often requires a lot of time to check the fasteners one by one and then tighten the loose fasteners, which seriously affects the production progress.

[0006] This invention is implemented as follows: a punching die for the right dashboard end cover of a new energy vehicle includes an upper die base and a lower die base. A punch and a die are respectively provided on the upper and lower die bases. The upper die base is fixedly mounted on a hydraulic cylinder. A plurality of guide rods are fixedly mounted on the lower die base. The upper die base is slidably mounted on the guide rods. A plurality of limiting rods are provided through the upper die base. A tapered rod is provided at the bottom of each limiting rod. A plurality of mounting pieces are fixedly connected to the upper end of the punch. The limiting rods are fixedly mounted on a movable ring. The movable ring is fitted onto the upper end of the punch. The limiting rods pass through the mounting pieces and the upper die base, and a movable plate is fixedly connected to their upper ends. A limiting groove is formed on the lower surface of the movable plate. A fastening mechanism for fastening the movable plate is provided at the upper end of the upper die base.

[0007] As a preferred embodiment of the present invention, the hydraulic cylinder is fixedly mounted on the mounting bracket, and the lower end of the mounting bracket is fixedly connected to the lower mold base.

[0008] As a preferred embodiment of the present invention, the fastening mechanism includes bidirectional lead screws symmetrically arranged on both sides above the movable plate, the bidirectional lead screws being rotatably mounted on a fixed block, and the fixed block being fixedly mounted on the upper surface of the upper mold base.

[0009] As a preferred embodiment of the present invention, both ends of the bidirectional lead screw are threadedly connected to inclined push blocks, and the inclined push blocks are slidably inserted into the limiting groove.

[0010] As a preferred embodiment of the present invention, a sprocket is fixedly installed at one end of the bidirectional lead screw, and a chain is engaged with the sprocket.

[0011] As a preferred embodiment of the present invention, a motor is fixedly installed on one end of the upper surface of the upper mold base, and the output end of the motor is fixedly connected to one end of one of the bidirectional lead screws.

[0012] As a preferred embodiment of the present invention, the limiting rod is connected to the movable plate by bolts or welding.

[0013] As a preferred embodiment of the present invention, the lower surface of the upper mold base is provided with a snap-fit ​​groove, and the upper side of the punch is snapped into the snap-fit ​​groove; the side wall of the upper mold base is provided with a slot communicating with the snap-fit ​​groove, the upper surface of the slot is at the same height as the upper surface of the snap-fit ​​groove, and a pad can be inserted into the slot.

[0014] In a preferred embodiment of the present invention, the connection positions of the limiting rod and the movable plate are both located on the side of the limiting groove; a connecting groove is provided at the bottom of the movable plate, the upper end of the limiting rod is inserted into the connecting groove, and a notch is provided on the side of the limiting rod; a slot communicating with the connecting groove is provided on the side of the limiting groove, a limiting block is slidably inserted into the slot, one end of the limiting block is inserted into the notch, and the other end of the limiting block is in contact with the side wall of the inclined push block.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] This invention, by setting a limiting rod and a tapered rod, not only ensures the stability of the connection between the punch and the upper die holder during initial installation, preventing the punch from loosening during the punching process and affecting the punching effect, but also provides a convenient adjustment method if the punch becomes loose, allowing the punch to be retightened without disassembling the die. The design of the limiting rod and the tapered rod at the bottom, while ensuring the stability of the connection, also improves the accuracy of material positioning, further enhancing the punching precision of the product and reducing scrap. The setting of the movable ring and the limiting rod also provides a layer of limiting protection for the punch during its movement, extending the service life of the punch.

[0017] When the punch becomes loose, the two bidirectional lead screws rotate synchronously through sprockets and chains, causing the inclined push blocks at both ends to move towards each other simultaneously, precisely pushing the movable plate and ensuring the horizontal displacement of the movable plate. This allows multiple tapered rods to simultaneously press against the mounting plate, improving the convenience and efficiency of the punch fastening operation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of Embodiment 1 of the present invention;

[0019] Figure 2 This is a three-dimensional structural diagram of the punch and movable ring portion of Embodiment 1 of the present invention;

[0020] Figure 3 This is a three-dimensional structural diagram of the limiting rod and movable plate portion of Embodiment 1 of the present invention;

[0021] Figure 4 This is a three-dimensional structural diagram of the limiting rod and tapered rod portion of Embodiment 1 of the present invention;

[0022] Figure 5 As in Embodiment 1 of the present invention Figure 1 Enlarged view of the structure at point A in the middle;

[0023] Figure 6 This is a partial exploded view of the structure of Embodiment 1 of the present invention;

[0024] Figure 7 These are partial exploded views of embodiments 2 and 3 of the present invention;

[0025] Figure 8 For the present invention Figure 7 Enlarged view of the structure at point B in the middle;

[0026] Figure 9 For the present invention Figure 7 Enlarged view of the structure at point C;

[0027] Figure 10 For the present invention Figure 7 Enlarged view of the structure at point D.

[0028] In the diagram: 11. Upper mold base; 12. Lower mold base; 13. Mounting bracket; 14. Hydraulic cylinder; 2. Fastening mechanism; 21. Motor; 22. Sprocket; 23. Chain; 24. Fixing block; 25. Inclined push block; 26. Double-acting screw; 31. Punch; 32. Die; 33. Guide rod; 34. Mounting plate; 4. Movable plate; 41. Movable ring; 42. Limiting rod; 43. Limiting groove; 44. Tapered rod; 51. Snap-fit ​​groove; 52. Slot; 53. Pad; 61. Connecting groove; 62. Notch; 63. Snap-fit ​​groove; 64. Limiting block. Detailed Implementation

[0029] To further understand the invention's content, features, and effects, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0030] The structure of the present invention will now be described in detail with reference to the accompanying drawings. Example

[0031] like Figures 1 to 6 As shown in the figure, the present invention provides a punching die for the right instrument panel end cover of a new energy vehicle, including an upper die base 11 and a lower die base 12. The upper die base 11 and the lower die base 12 are respectively provided with a punch 31 and a die 32. The upper die base 11 is fixedly installed on a hydraulic cylinder 14. A plurality of guide rods 33 are fixedly installed on the lower die base 12. The upper die base 11 is slidably installed on the guide rods 33. A plurality of limiting rods 42 are provided through the upper die base 11. A tapered rod 44 is provided at the bottom of the limiting rods 42. A fastening mechanism 2 is provided at the upper end of the upper die base 11.

[0032] In this application, the upper mold base 11 is connected to the hydraulic cylinder 14. When the hydraulic cylinder 14 is started, the thrust generated drives the upper mold base 11 to move up and down along the guide rod 33. The guide rod 33 on the lower mold base 12 plays a precise guiding role, ensuring that the upper mold base 11 runs smoothly and will not deviate. The upper mold base 11 and the lower mold base 12 are respectively provided with a punch 31 and a die 32. When the upper mold base 11 moves downward, the punch 31 and the die 32 cooperate with each other to perform a punching operation on the material of the right instrument panel end cover of the new energy vehicle placed on the lower mold base 12.

[0033] This structural design makes the die punching process stable and reliable. The guide rod 33 ensures the movement accuracy of the upper die holder 11, improves the punching quality, reduces punching deviation, and avoids an increase in product defect rate due to unstable die movement.

[0034] The hydraulic cylinder 14 is fixedly installed on the mounting bracket 13. The lower end of the mounting bracket 13 is fixedly connected to the lower die base 12. As a power source, the hydraulic cylinder 14 can provide stable and adjustable punching force to meet the needs of different punching processes.

[0035] Furthermore, a number of mounting pieces 34 are fixedly connected to the upper end of the punch 31, and a number of limiting rods 42 are fixedly installed on the movable ring 41. The movable ring 41 is sleeved on the upper end of the punch 31. The limiting rods 42 pass through the mounting pieces 34 and the upper mold base 11, and are fixedly connected to the upper end of the movable plate 4. A limiting groove 43 is opened on the lower surface of the movable plate 4.

[0036] The punch 31 is connected to the upper die base 11 via the mounting plate 34. The mounting plate 34 serves to stabilize the punch 31. The movable ring 41 is fitted onto the upper end of the punch 31, and the limiting rod 42 is fixed to the movable ring 41. The movable plate 4 is supported by the inclined push block 25 of the fastening mechanism 2. This causes the tapered rod 44 at the bottom of the limiting rod 42 to press tightly against the mounting plate 34, thereby making the mounting plate 34 firmly adhere to the upper die base 11, achieving a stable installation of the punch 31. Since the punch 31 is connected to the upper die base 11 via the mounting plate 34, if the punch 31 becomes loose after a period of time, the fastening mechanism 2 can be adjusted to move the inclined push block 25, pushing the movable plate 4 upward. Since the limiting rod 42 is fixed to the movable plate 4, the upward movement of the movable plate 4 causes the limiting rod 42 to move upward, and the tapered rod 44 at its bottom pushes the mounting plate 34 upward, making the mounting plate 34 tightly adhere to the upper die base 11 again, ensuring the tightness of the connection between the punch 31 and the upper die base 11.

[0037] This installation structure not only ensures the stability of the connection between the punch 31 and the upper die holder 11 during initial installation, preventing the punch 31 from loosening during the punching process and affecting the punching effect, but also provides a convenient adjustment method after the punch 31 becomes loose. The punch 31 can be re-tightened without disassembling the die. The design of the limiting rod 42 and the tapered rod 44 at the bottom not only ensures the stability of the connection, but also improves the accuracy of material positioning, further improving the punching precision of the product and reducing the generation of scrap. The setting of the movable ring 41 and the limiting rod 42 also provides a layer of limiting protection for the punch 31 during the movement process, extending the service life of the punch 31.

[0038] Furthermore, the fastening mechanism 2 includes bidirectional lead screws 26 symmetrically arranged on both sides above the movable plate 4. The bidirectional lead screws 26 are rotatably mounted on the fixed block 24, and the fixed block 24 is fixedly mounted on the upper surface of the upper mold base 11. Both ends of the bidirectional lead screws 26 are threadedly connected to inclined push blocks 25, which are slidably inserted into the limiting groove 43. A sprocket 22 is fixedly mounted on one end of the bidirectional lead screws 26, and a chain 23 is meshed on the sprocket 22. A motor 21 is fixedly mounted on one end of the upper surface of the upper mold base 11, and the output end of the motor 21 is fixedly connected to one end of one of the bidirectional lead screws 26.

[0039] The fastening mechanism 2 is used to adjust the movable plate 4 and the limiting rod 42 to ensure the tightness of the connection between the punch 31 and the upper die base 11. During operation, the start motor 21 drives the bidirectional lead screw 26 connected to it to rotate. Since the threads at both ends of the bidirectional lead screw 26 are opposite and both ends are threaded with inclined push blocks 25, when the bidirectional lead screw 26 rotates, the two inclined push blocks 25 will move towards each other along the bidirectional lead screw 26. Through the sliding cooperation between the inclined push blocks 25 and the limiting groove 43, the movable plate 4 moves upward. The two bidirectional lead screws 26 achieve synchronous rotation through the sprocket 22 and the chain 23 to ensure that the actions of each inclined push block 25 are consistent and accurately push the movable plate 4 to ensure the horizontal displacement of the movable plate 4. Example

[0040] Based on Example 1, the following settings are also made:

[0041] See Figures 1-8 The lower surface of the upper mold base 11 is provided with a snap-fit ​​groove 51, and the upper side of the punch 31 is snapped into the snap-fit ​​groove 51. The side wall of the upper mold base 11 is provided with a slot 52 that communicates with the snap-fit ​​groove 51. The upper surface of the slot 52 is at the same height as the upper surface of the snap-fit ​​groove 51, and a pad 53 can be inserted into the slot 52.

[0042] This setting allows adjustment of the installation height of the punch 31. The specific process is as follows: Move the inclined push block 25 to lower the movable ring 41 and the punch 31, insert the pad 53 of the required thickness into the snap-fit ​​groove 51 through the slot 52, and then move the inclined push block 25 in the opposite direction to raise the movable ring 41 and the punch 31, so that the upper end of the punch 31 presses against the pad 53.

[0043] In the stamping die for the right dashboard end cover of an automobile, adjusting the mounting height of the punch 31 serves the following purposes:

[0044] Controlling the punching depth: By adjusting the installation height of the punch 31, the depth of the punch 31 entering the die 32 can be precisely controlled, ensuring that the punched part of the instrument panel end cover reaches the depth required by the design during the punching process, ensuring the dimensional accuracy and shape accuracy of the punched part, and making the punched end cover conform to the product specifications.

[0045] Ensuring punching quality: A suitable punch height 31 ensures a more reasonable deformation and fracture process of the material during punching. If the punch height 31 is too high, it may result in excessive punching force, causing defects such as burrs and tears on the edge of the end cap; while if the punch height 31 is too low, the punching may be incomplete, and the material may not be completely separated. By adjusting the height of the punch 31, the punching force can be evenly distributed, the material can be separated smoothly, and good punching surface quality can be obtained, reducing burrs and deformation.

[0046] Protecting the mold and equipment: Properly adjusting the installation height of the punch 31 can prevent the punch 31 from entering the die 32 too deeply, thus avoiding excessive pressure and friction on the mold, reducing mold wear and deformation, and extending the mold's service life. At the same time, it can also prevent overloading of the stamping equipment due to excessive punching force, protecting the equipment's mechanical structure and transmission system, reducing the incidence of equipment failure, and improving the stability and reliability of the equipment.

[0047] Adaptability to Different Materials and Thicknesses: During the production process, situations may arise where sheet metal of different materials or thicknesses is used to manufacture the right dashboard end cover for automobiles. Sheet metal of different materials and thicknesses exhibits varying mechanical properties and punching difficulties. By adjusting the mounting height of the punch 31, punching parameters can be adjusted according to the specific material and thickness characteristics to achieve optimal punching results, ensuring the production of qualified products under different material and thickness conditions. Example

[0048] In Embodiment 1 or Embodiment 2, the limiting rod 42 can be bolted to the movable plate 4 or welded to it.

[0049] In this embodiment, the following connection scheme is provided:

[0050] See Figure 1 - Figure 7 ,as well as Figure 9 and Figure 10 The connection positions of the limiting rod 42 and the movable plate 4 are both located on the side of the limiting groove 43. The bottom of the movable plate 4 is provided with a connecting groove 61, and the upper end of the limiting rod 42 is inserted into the connecting groove 61. The side of the limiting rod 42 is provided with a notch 62. The side of the limiting groove 43 is provided with a slot 63 that communicates with the connecting groove 61. A limiting block 64 is slidably inserted into the slot 63. One end of the limiting block 64 is inserted into the notch 62, and the other end of the limiting block 64 is in contact with the side wall of the inclined push block 25.

[0051] With this configuration, when the inclined push block 25 is in normal use, its sidewalls are always in contact with the limiting block 64, so that the limiting block 64 is always located in the notch 62, thereby fixing the limiting rod 42 and the movable plate 4 in place. When it is necessary to replace the punch 31, the inclined push block 25 is moved to its extreme position at the end, so that the inclined push block 25 is no longer in contact with the limiting block 64, thereby allowing the limiting block 64 to move away from the notch 62, thus separating the limiting rod 42 and the movable plate 4, at which point the punch 31 can be quickly replaced.

[0052] Working principle of the invention:

[0053] During the punching process, the material of the right instrument panel end cover of the new energy vehicle to be punched is first placed on the lower die base 12. The hydraulic cylinder 14 is started, and the upper die base 11 moves downward along the guide rod 33 under the push of the hydraulic cylinder 14. Then, the punch 31 and the die 32 cooperate to punch the material. In the initial state, the tapered rod 44 at the bottom of the limiting rod 42 is supported by the inclined push block 25 on the movable plate 4, which tightly presses against the mounting piece 34 to ensure that the punch 31 is tightly connected to the upper die base 11. When the punch 31 becomes loose after a period of use, the starting motor 21 drives the bidirectional lead screw 26 to rotate, so that the inclined push blocks 25 at both ends move towards each other and push the movable plate 4 upward. Then, the mounting piece 34 is pushed upward through the limiting rod 42 and the tapered rod 44 at the bottom, so that the punch 31 is tightly connected to the upper die base 11 again, ensuring the stability of the punch 31 during the punching process, and finally completing the precise punching operation.

[0054] In summary, this punching die for the right instrument panel end cover of a new energy vehicle, by setting a limiting rod 42 and a tapered rod 44, not only ensures the stability of the connection between the punch 31 and the upper die base 11 during initial installation, preventing the punch 31 from loosening during the punching process and affecting the punching effect, but also, when the punch 31 becomes loose, the tapered rod 44 is moved upward by the fastening mechanism 2, so that the punch 31 can be re-fastened without disassembling the die, thus improving the convenience and efficiency of the punch 31 fastening operation.

[0055] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0056] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A punching die for the right instrument panel end cover of a new energy vehicle, comprising an upper die base (11) and a lower die base (12), wherein a punch (31) and a die (32) are respectively provided on the upper die base (11) and the lower die base (12), the upper die base (11) is fixedly mounted on a hydraulic cylinder (14), and a plurality of guide rods (33) are fixedly mounted on the lower die base (12), wherein the upper die base (11) is slidably mounted on the guide rods (33), characterized in that: A plurality of limiting rods (42) are provided through the upper mold base (11). A tapered rod (44) is provided at the bottom of the limiting rod (42). A plurality of mounting pieces (34) are fixedly connected to the upper end of the punch (31). A plurality of the limiting rods (42) are fixedly installed on the movable ring (41). The movable ring (41) is sleeved on the upper end of the punch (31). The limiting rods (42) pass through the mounting pieces (34) and the upper mold base (11), and a movable plate (4) is fixedly connected to the upper end. A limiting groove (43) is opened on the lower surface of the movable plate (4). The upper end of the upper mold base (11) is provided with a fastening mechanism (2) for fastening the movable plate (4); The fastening mechanism (2) includes bidirectional lead screws (26) symmetrically arranged on both sides above the movable plate (4). The bidirectional lead screws (26) are rotatably mounted on the fixed block (24), and the fixed block (24) is fixedly mounted on the upper surface of the upper mold base (11). Both ends of the bidirectional lead screws (26) are threaded with inclined push blocks (25), and the inclined push blocks (25) are slidably inserted into the limiting groove (43). A sprocket (22) is fixedly mounted on one end of the bidirectional lead screws (26), and a chain (23) is meshed on the sprocket (22). A motor (21) is fixedly mounted on one end of the upper surface of the upper mold base (11), and the output end of the motor (21) is fixedly connected to one end of one of the bidirectional lead screws (26). The connection positions of the limiting rod (42) and the movable plate (4) are both located on the side of the limiting groove (43); the bottom of the movable plate (4) is provided with a connecting groove (61), the upper end of the limiting rod (42) is inserted into the connecting groove (61), and the side of the limiting rod (42) is provided with a notch (62); the side of the limiting groove (43) is provided with a slot (63) communicating with the connecting groove (61), a limiting block (64) is slidably inserted in the slot (63), one end of the limiting block (64) is inserted into the notch (62), and the other end of the limiting block (64) is in contact with the side wall of the inclined push block (25); When the inclined push block (25) is in normal use, the side wall of the inclined push block (25) is in contact with the limiting block (64), so that the limiting block (64) is always in the notch (62), thereby fixing the limiting rod (42) and the movable plate (4) in place; when the punch (31) needs to be replaced, the inclined push block (25) is moved to the extreme position at the end, so that the inclined push block (25) is not in contact with the limiting block (64), thereby moving the limiting block (64) and disengaging it from the notch (62), thereby separating the limiting rod (42) and the movable plate (4), at which time the punch (31) is replaced.

2. The punching die for the right instrument panel end cover of a new energy vehicle as described in claim 1, characterized in that: The hydraulic cylinder (14) is fixedly installed on the mounting bracket (13), and the lower end of the mounting bracket (13) is fixedly connected to the lower mold base (12).

3. The punching die for the right instrument panel end cover of a new energy vehicle as described in claim 1, characterized in that: The lower surface of the upper mold base (11) is provided with a snap-fit ​​groove (51), and the upper side of the punch (31) is snapped into the snap-fit ​​groove (51); The upper mold base (11) has a slot (52) on its side wall that communicates with the snap-fit ​​groove (51). The upper surface of the slot (52) is at the same height as the upper surface of the snap-fit ​​groove (51), and a pad (53) can be inserted into the slot (52).

Images