Stamping die for mechanical parts

Abstract

The application discloses a stamping die for mechanical parts and relates to the technical field of stamping dies.The stamping die comprises a base, a lower die is fixedly connected to the top of the base, a top plate is arranged above the lower die, an upper die is fixedly connected to the top of the top plate, a pressing assembly is arranged outside the upper die, the pressing assembly comprises a pressing ring, and four connecting blocks are fixedly connected to the top of the pressing ring;the pressing assembly is arranged, specifically, the hydraulic cylinder drives the top plate to move downwards, at this time, the pressing assembly moves downwards together, the pressing ring first contacts the iron sheet, thereby pressing the iron sheet, and the top plate drives the upper die to move downwards again, so that the upper die is smoothly matched with the lower die to perform stamping work;in this way, the iron sheet is pressed first, the fixed effect can be achieved, the situation that the iron sheet is warped is avoided, the stamping precision is improved, and the situation of scrapping is greatly reduced.

Description

Technical Field

[0001] This invention relates to the field of stamping die technology, and more specifically to a stamping die for mechanical parts. Background Technology

[0002] Stamping dies are special process equipment used in cold stamping to process materials (metal or non-metal) into parts (or semi-finished products).

[0003] Existing stamping dies typically place the metal sheet or other product directly on the lower die during stamping, and the worker holds the metal sheet by hand. However, this method can cause the metal sheet to tilt during the stamping process, resulting in significant dimensional errors in the stamped product. Furthermore, stamping while the metal sheet is tilted will cause the product to tilt after stamping, leading to product scrap. Therefore, we propose a stamping die for mechanical parts. Summary of the Invention

[0004] The purpose of this invention is to provide a stamping die for mechanical parts. By setting a pressing component, specifically by using a hydraulic cylinder to drive the top plate downward, the pressing component moves downward along with it. The pressing ring first contacts the iron sheet, thus pressing the iron sheet. The top plate then drives the upper die to move downward again, allowing the upper die to cooperate smoothly with the lower die for stamping. This method, by pressing the iron sheet first, can fix it, preventing the iron sheet from warping, improving stamping accuracy, and significantly reducing scrap. It solves the problem of existing stamping dies, which usually place the iron sheet or other products directly on the lower die during stamping. This method can cause warping during stamping, resulting in tilting of the iron sheet and large dimensional errors in the stamped product.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A stamping die for mechanical parts includes a base, a lower die fixedly connected to the top of the base, a top plate above the lower die, an upper die fixedly connected to the top of the top plate, a pressing assembly on the outer side of the upper die, the pressing assembly including a pressing ring, four connecting blocks fixedly connected to the top of the pressing ring, fixing blocks fixedly connected to the outer sides of each of the four connecting blocks, vertical rods fixedly connected inside each of the four fixing blocks, docking rings fixedly connected to the tops of the four vertical rods, springs sleeved on the outer sides of the vertical rods, the bottom of the springs fixedly connected to the tops of the fixing blocks, the tops of the springs fixedly connected to the bottoms of the docking rings, and the tops of the docking rings contacting the bottom of the top plate. When the pressing assembly moves downwards, the pressing ring first contacts a metal sheet, thus pressing the metal sheet down, which can fix it and prevent the metal sheet from warping, improve the stamping accuracy, and significantly reduce scrap.

[0007] Furthermore, positioning posts are fixedly connected to the four corners of the top of the lower mold, an opening is provided on the left side of the top of the lower mold, buffer posts are fixedly connected to the four corners of the top of the base, and inner ball sliders are fixedly connected to the four corners of the top of the top plate. The buffer posts are slidably disposed inside the inner ball sliders, the positioning posts are used to position the iron sheet, and the ball sliders can play a smooth role, making the movement of the top plate more smooth.

[0008] Furthermore, the top plate has two positioning slots and four insertion holes. Two positioning rings are fixedly connected to the bottom of the top plate. The corresponding side of the two positioning rings is inserted into the docking ring. The docking ring is inserted into the positioning slot on the top plate through the positioning block. The pin is inserted into the positioning block to support the docking ring. At this time, no support is required, which makes it convenient for workers to carry out the installation work and improves efficiency.

[0009] Furthermore, two positioning blocks and four threaded shafts are fixedly connected to the top of the docking ring. A pin is inserted inside the positioning block, and a nut is threaded onto the outside of the threaded shaft. The pin is located above the top plate. The positioning block is inserted into the top plate through a positioning groove, and the threaded shaft is inserted into the top plate through a insertion hole. After the pin is inserted into the positioning block, it supports the docking ring. Then, the nut is threaded onto the threaded shaft to fix the docking ring, thereby quickly completing the installation.

[0010] Furthermore, a ejector plate is provided inside the lower mold, and a fixing plate is provided below the ejector plate. The outer side of the fixing plate is fixedly connected to the inner wall of the lower mold. A stabilizing shaft is fixedly connected to the center of the bottom of the ejector plate, and a limit plate is fixedly connected to the bottom of the stabilizing shaft. Three elastic telescopic rods are provided inside the fixing plate. The three elastic telescopic rods are arranged in a circular array around the stabilizing shaft. By setting the ejector plate, specifically during stamping, the product enters the lower mold and presses the ejector plate downward. At this time, the stabilizing shaft slides on the fixing plate and presses the elastic telescopic rods to retract. When stamping is completed, when the top plate moves upward to reset, the upper mold moves away from the lower mold. At this time, the ejector plate will reset upward under the elastic action of the elastic telescopic rods, thereby ejecting the formed product from the mold for easy removal by the operator and improving stamping efficiency.

[0011] Furthermore, the stabilizing shaft passes through the fixed plate and extends below the fixed plate. The stabilizing shaft is slidably connected to the fixed plate. The top of the limiting plate contacts the bottom of the fixed plate. The top of the elastic telescopic rod is fixedly connected to the bottom of the ejector plate. The bottom of the elastic telescopic rod is fixedly connected to the bottom of the inner wall of the lower mold. When the ejector plate moves downward, the stabilizing shaft slides on the fixed plate and presses the elastic telescopic rod to retract, so that the ejector plate can be driven to reset upward by the elastic action of the elastic telescopic rod.

[0012] As can be seen from the above technical solution, compared with the prior art, the present invention discloses a stamping die for mechanical parts, which has the following beneficial effects:

[0013] 1. This invention features a pressing component. Specifically, a hydraulic cylinder drives the top plate to move downwards, and the pressing component moves downwards along with it. The pressing ring first contacts the iron sheet, thus pressing the iron sheet down. The top plate then drives the upper mold to move downwards again, allowing the upper mold to cooperate smoothly with the lower mold for stamping. This method, by pressing the iron sheet first, can fix it in place, preventing the iron sheet from warping, improving stamping accuracy, and significantly reducing scrap.

[0014] 2. This invention features a ejector plate. Specifically, during stamping, the product enters the lower mold and the ejector plate is pressed downwards. At this time, the stabilizing shaft slides on the fixed plate and presses and retracts the elastic telescopic rod. When stamping is completed and the top plate moves upwards to reset, the upper mold moves away from the lower mold. At this time, the ejector plate will reset upwards under the elastic action of the elastic telescopic rod, thereby ejecting the formed product from the mold, making it easier for workers to remove and increasing stamping efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the outer structure of the mold in this invention;

[0018] Figure 3 This is a schematic diagram of the overall structure of the pressing component of the present invention;

[0019] Figure 4 This is a schematic diagram of the internal cross-sectional structure of the template removal process of the present invention;

[0020] Figure 5 This is a schematic diagram of the bottom structure of the top plate of the present invention.

[0021] in:

[0022] 1. Base; 11. Lower mold; 111. Positioning pin; 112. Opening; 12. Top plate; 121. Upper mold; 122. Inner ball block slider; 123. Positioning ring; 124. Positioning groove; 125. Insertion hole; 13. Pressing assembly; 131. Pressing ring; 132. Connecting block; 133. Fixing block; 134. Vertical rod; 341. Spring; 135. Connecting ring; 351. Positioning block; 352. Pin; 353. Threaded shaft; 354. Nut; 14. Release plate; 141. Fixing plate; 142. Stabilizing shaft; 143. Limiting plate; 144. Elastic telescopic rod; 2. Buffer pin. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] See Figure 1-5 As shown, the present invention is a stamping die for mechanical parts, including a base 1, a lower die 11 fixedly connected to the top of the base 1, a top plate 12 provided above the lower die 11, an upper die 121 fixedly connected to the top of the top plate 12, a pressing assembly 13 provided on the outer side of the upper die 121, the pressing assembly 13 including a pressing ring 131, four connecting blocks 132 fixedly connected to the top of the pressing ring 131, fixing blocks 133 fixedly connected to the outer side of each of the four connecting blocks 132, vertical rods 134 fixedly connected inside each of the four fixing blocks 133, docking rings 135 fixedly connected to the top of the four vertical rods 134, and springs 341 sleeved on the outer side of the vertical rods 134, the bottom of the springs 341 being connected to... The top of the fixing block 133 is fixedly connected, and the top of the spring 341 is fixedly connected to the bottom of the docking ring 135. The top of the docking ring 135 contacts the bottom of the top plate 12. By setting the pressing component 13, specifically by driving the top plate 12 downward through the hydraulic cylinder, the pressing component 13 will move downward along with it. The pressing ring 131 will first contact the iron sheet, thereby pressing the iron sheet. The top plate 12 will then drive the upper mold 121 to move downward again, so that the upper mold 121 can smoothly cooperate with the lower mold 11 to perform stamping work. This method can fix the iron sheet by pressing it first, preventing the iron sheet from warping, improving the stamping accuracy, and greatly reducing the scrap.

[0025] The lower mold 11 has positioning posts 111 fixedly connected to the four corners of the top. The lower mold 11 has an opening 112 on the left side of the top. The base 1 has buffer posts 2 fixedly connected to the four corners of the top. The top plate 12 has inner ball sliders 122 fixedly connected to the four corners of the top. The buffer posts 2 are slidably arranged inside the inner ball sliders 122.

[0026] The top plate 12 has two positioning grooves 124 and four insertion holes 125 respectively. Two positioning rings 123 are fixedly connected to the bottom of the top plate 12. The corresponding side of the two positioning rings 123 is inserted into the docking ring 135.

[0027] Two positioning blocks 351 and four threaded shafts 353 are fixedly connected to the top of the docking ring 135. The positioning blocks 351 have pins 352 inserted inside, and the threaded shafts 353 have nuts 354 threadedly connected to the outside. The pins 352 are located above the top plate 12. The positioning blocks 351 are inserted into the top plate 12 through the positioning groove 124, and the threaded shafts 353 are inserted into the top plate 12 through the insertion hole 125.

[0028] The lower mold 11 has a ejector plate 14 inside, and a fixing plate 141 is set below the ejector plate 14. The outer side of the fixing plate 141 is fixedly connected to the inner wall of the lower mold 11. A stabilizing shaft 142 is fixedly connected to the bottom center of the ejector plate 14, and a limit plate 143 is fixedly connected to the bottom of the stabilizing shaft 142. Three elastic telescopic rods 144 are set inside the fixing plate 141. The three elastic telescopic rods 144 are arranged in a circular array with the stabilizing shaft 142 as the center. By setting the ejector plate 14, specifically during stamping, the product will enter the lower mold 11 and press the ejector plate 14 downward. At this time, the stabilizing shaft 142 slides on the fixing plate 141 and presses the elastic telescopic rods 144 to retract. When the stamping is completed, when the top plate 12 moves upward to reset, the upper mold 121 moves away from the lower mold 11. At this time, the ejector plate 14 will reset upward under the elastic action of the elastic telescopic rods 144, thereby popping the formed product out of the mold, making it convenient for workers to take out, and improving stamping efficiency.

[0029] The stabilizing shaft 142 passes through the fixing plate 141 and extends to the bottom of the fixing plate 141. The stabilizing shaft 142 is slidably connected to the fixing plate 141. The top of the limiting plate 143 contacts the bottom of the fixing plate 141. The top of the elastic telescopic rod 144 is fixedly connected to the bottom of the demolding template 14, and the bottom of the elastic telescopic rod 144 is fixedly connected to the bottom of the inner wall of the lower mold 11.

[0030] One specific application of this embodiment is:

[0031] Insert the mating ring 135 into the positioning groove 124 on the top plate 12 via the positioning block 351. Simultaneously, the threaded shaft 353 enters the insertion hole 125. The positioning groove 124 serves as a positioning feature, allowing the threaded shaft 353 to smoothly insert into the insertion hole 125. After the top of the mating ring 135 contacts the bottom of the top plate 12, it will engage with the two positioning rings 123 to position the mating ring 135. Then, insert the pin 352 into the positioning block 351 to support the mating ring 135. At this point, no support is needed, facilitating installation and increasing efficiency. Finally, insert the nut 3... The thread 54 is threaded onto the threaded shaft 353 to fix the mating ring 135. Then, the iron sheet is placed on the lower mold 11, with the positioning pin 111 used to position the iron sheet. Subsequently, the hydraulic cylinder drives the top plate 12 downwards, at which point the pressing assembly 13 moves downwards along with it. The four corners of the top plate 12 slide on the buffer pin 2 via the inner ball slider 122, improving stability during movement. At this point, the pressing ring 131 contacts the iron sheet first, pressing it down. The top plate 12 then drives the upper mold 121 to move downwards again, causing the connecting block 132 to... The fixed block 133 slides on the vertical rod 134, compressing the spring 341, allowing the upper mold 121 to smoothly cooperate with the lower mold 11 for stamping. This method, by pressing the iron sheet first, can fix it, preventing the iron sheet from warping, improving stamping accuracy, and significantly reducing scrap. During stamping, the product enters the lower mold 11 and presses the ejector plate 14 downward. At this time, the stabilizing shaft 142 slides on the fixed plate 141 and presses down the elastic telescopic rod 144 to retract. When stamping is completed, the top plate 12 moves upward to reset. The upper mold 121 is away from the lower mold 11. At this time, the ejector plate 14 will be reset upward under the elastic action of the elastic telescopic rod 144, thereby popping the molded product out of the mold for easy removal by the staff. The limiting plate 143 will limit the ejector plate 14 to prevent it from moving outside the lower mold 11. At the same time, after the top plate 12 is reset upward, the pressing ring 131 will be held below the upper mold 121 under the elastic action of the spring 341 for easy pressing next time. Finally, the staff can remove the waste material on the lower mold 11 through the opening 112.

[0032] When the pressing component 13 needs maintenance after prolonged use, remove the nut 354, then pull out the pin 352 to release the fixing of the docking ring 135, and then pull the pressing component 13 down to disassemble it, which facilitates subsequent maintenance and replacement work.

[0033] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0035] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A stamping die for mechanical parts, comprising a base (1), a lower die (11) fixedly connected to the top of the base (1), and a top plate (12) arranged above the lower die (11), characterized in that: The top plate (12) is fixedly connected with an upper mold (121) on top, and a pressing assembly (13) is arranged outside the upper mold (121), the pressing assembly (13) comprises a pressing ring (131), four connecting blocks (132) are fixedly connected to the top of the pressing ring (131), four fixed blocks (133) are fixedly connected to the outside of the four connecting blocks (132), four vertical rods (134) are fixedly connected to the inside of the four fixed blocks (133), a butt joint ring (135) is fixedly connected to the top of the four vertical rods (134), springs (341) are sleeved outside the vertical rods (134), the bottom of the spring (341) is fixedly connected with the top of the fixed block (133), the top of the spring (341) is fixedly connected with the bottom of the butt joint ring (135), and the top of the butt joint ring (135) is in contact with the bottom of the top plate (12); The bottom plate (12) is fixedly connected with an upper mold (121) on top, and a pressing assembly (13) is arranged outside the upper mold (121), the pressing assembly (13) comprises a pressing ring (131), four connecting blocks (132) are fixedly connected to the top of the pressing ring (131), four fixed blocks (133) are fixedly connected to the outside of the four connecting blocks (132), four vertical rods (134) are fixedly connected to the inside of the four fixed blocks (133), a butt joint ring (135) is fixedly connected to the top of the four vertical rods (134), springs (341) are sleeved outside the vertical rods (134), the bottom of the spring (341) is fixedly connected with the top of the fixed block (133), the top of the spring (341) is fixedly connected with the bottom of the butt joint ring (135), and the top of the butt joint ring (135) is in contact with the bottom of the top plate (12); The top plate (12) is fixedly connected with an upper mold (121) on top, and a pressing assembly (13) is arranged outside the upper mold (121), the pressing assembly (13) comprises a pressing ring (131), four connecting blocks (132) are fixedly connected to the top of the pressing ring (131), four fixed blocks (133) are fixedly connected to the outside of the four connecting blocks (132), four vertical rods (134) are fixedly connected to the inside of the four fixed blocks (133), a butt joint ring (135) is fixedly connected to the top of the four vertical rods (134), springs (341) are sleeved outside the vertical rods (134), the bottom of the spring (341) is fixedly connected with the top of the fixed block (133), the top of the spring (341) is fixedly connected with the bottom of the butt joint ring (135), and the top of the butt joint ring (135) is in contact with the bottom of the top plate (12); The butt joint ring (135) is fixedly connected with two positioning blocks (351) and four threaded shafts (353) on top, the positioning block (351) is inserted with a latch (352) inside, the threaded shaft (353) is threadedly connected with a nut (354) outside, the latch (352) is arranged above the top plate (12), the positioning block (351) is inserted with the top plate (12) through the positioning slot (124), and the threaded shaft (353) is inserted with the top plate (12) through the insertion hole (125); The bottom plate (12) is fixedly connected with an upper mold (121) on top, and a pressing assembly (13) is arranged outside the upper mold (121), the pressing assembly (13) comprises a pressing ring (131), four connecting blocks (132) are fixedly connected to the top of the pressing ring (131), four fixed blocks (133) are fixedly connected to the outside of the four connecting blocks (132), four vertical rods (134) are fixedly connected to the inside of the four fixed blocks (133), a butt joint ring (135) is fixedly connected to the top of the four vertical rods (134), springs (341) are sleeved outside the vertical rods (134), the bottom of the spring (341) is fixedly connected with the top of the fixed block (133), the top of the spring (341) is fixedly connected with the bottom of the butt joint ring (135), and the top of the butt joint ring (135) is in contact with the bottom of the top plate (12); The stable shaft (142) penetrates through the fixed plate (141) and extends below the fixed plate (141), the stable shaft (142) is in sliding connection with the fixed plate (141), and the limiting plate (143) is in contact with the bottom of the fixed plate (141); The top of the elastic telescopic rod (144) is fixedly connected with the bottom of the stripping plate (14), and the bottom of the elastic telescopic rod (144) is fixedly connected with the bottom of the inner wall of the lower mold (11).

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