Stamping die for mechanical parts

Abstract

The invention discloses a stamping die for mechanical parts, and relates to the technical field of stamping dies. The mold comprises a base, a lower mold is fixedly connected to the top of the base, a top plate is arranged above the lower mold, an upper mold is fixedly connected to the top of the top plate, a pressing assembly is arranged on the outer side of the upper mold and 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 the moment, the pressing assembly moves downwards along with the top plate, the pressing ring makes contact with the iron sheet firstly, so that the iron sheet is pressed, the top plate drives the upper die to move downwards again, and the upper die is smoothly matched with the lower die to conduct punching work; according to the mode, the iron sheet is pressed firstly, the fixing effect can be achieved, the situation that the iron sheet tilts up is avoided, the stamping precision is improved, and the scrapping situation is greatly reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of stamping dies, and more particularly to a stamping die for mechanical parts. Background Art

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

[0003] When stamping products, existing stamping dies usually place products such as iron sheets directly on the lower die, and the staff holds the iron sheets by hand. However, this method will cause warping during the stamping process, causing the iron sheets to tilt, resulting in large dimensional errors in the stamped products. At the same time, stamping when warped will cause the product to tilt to a certain extent after stamping, causing the product to be scrapped. Therefore, we proposed a stamping die for mechanical parts. Summary of the invention

[0004] The object of the present invention is to provide a stamping die for mechanical parts, which is provided with a pressing assembly, specifically, a hydraulic cylinder drives the top plate to move downward. At this time, the pressing assembly will move downward together, and the pressing ring will first contact the iron sheet to press the iron sheet, and the top plate will drive the upper die to move downward again, so that the upper die can smoothly cooperate with the lower die to perform stamping work. This method can play a fixing role by pressing the iron sheet first, thereby avoiding the iron sheet from warping, improving the stamping accuracy, and greatly reducing the scrap situation. It solves the problem that the existing stamping die usually directly places the iron sheet and other products on the lower die when stamping the product. This method will cause warping during the stamping process, causing the iron sheet to tilt, and causing the stamped product to have a large dimensional error.

[0005] In order to achieve the above object, the present invention adopts the following technical solution: A stamping die for mechanical parts 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 on the outer side of the upper die, the pressing assembly comprises a pressing ring, four connecting blocks are fixedly connected to the top of the pressing ring, the outer sides of the four connecting blocks are fixedly connected to fixing blocks, the inner sides of the four fixing blocks are fixedly connected to vertical rods, the tops of the four vertical rods are fixedly connected to docking rings, a spring is sleeved on the outer side of the vertical rod, the bottom of the spring is fixedly connected to the top of the fixing block, the top of the spring is fixedly connected to the bottom of the docking ring, the top of the docking ring contacts the bottom of the top plate, the pressing assembly will move downward, the pressing ring will first contact with the iron sheet, thereby pressing the iron sheet, which can play a fixing role, avoid the iron sheet from warping, improve the stamping accuracy, and greatly reduce the scrapping.

[0006] Furthermore, positioning columns are fixedly connected to the four corners of the top of the lower mold, an opening is opened on the left side of the top of the lower mold, buffer columns 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 columns are slidably arranged inside the inner ball slider, the positioning columns are used to position the iron sheet, and the ball slider can play a smooth role, making the top plate move more smoothly.

[0007] Furthermore, two positioning grooves and four insertion holes are respectively provided inside the top plate, and two positioning rings are fixedly connected to the bottom of the top plate. The corresponding sides of the two positioning rings are plugged into the docking ring. The docking ring is inserted into the positioning groove on the top plate through the positioning block, and the pin is inserted into the positioning block to support the docking ring. At this time, no support is required, which is convenient for the staff to carry out installation work and more efficient.

[0008] Furthermore, two positioning blocks and four threaded shafts are fixedly connected to the top of the docking ring, a pin is inserted into the inside of the positioning block, and a nut is threadedly connected to the outer side of the threaded shaft, the pin is arranged above the top plate, the positioning block is plugged into the top plate through a positioning groove, and the threaded shaft is plugged into the top plate through a socket. After the pin is inserted into the positioning block, the docking ring is supported, and the nut is threaded onto the threaded shaft to fix the docking ring, thereby quickly completing the installation.

[0009] Furthermore, a stripping plate is provided inside the lower mold, a fixed plate is provided below the stripping plate, the outer side of the fixed plate is fixedly connected to the inner wall of the lower mold, a stabilizing shaft is fixedly connected at the center of the bottom of the stripping plate, the bottom of the stabilizing shaft is fixedly connected to a limiting plate, three elastic telescopic rods are provided inside the fixed plate, and the three elastic telescopic rods are arranged in a circular array with the stabilizing shaft as the center. By setting the stripping plate, specifically during stamping, the product will enter the lower mold and press the stripping plate downward. At this time, the stabilizing shaft slides on the fixed plate and presses and contracts the elastic telescopic rod. When the stamping is completed, the top plate moves upward to reset, and the upper mold moves away from the lower mold. At this time, the stripping plate will reset upward under the elastic action of the elastic telescopic rod, thereby popping out the molded product to demold, making it convenient for the staff to take it out and the stamping efficiency is higher.

[0010] Furthermore, the stabilizing shaft passes through the fixed plate and extends to the bottom of 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 stripping plate, and the bottom of the elastic telescopic rod is fixedly connected to the bottom of the inner wall of the lower mold. When the stripping plate moves downward, the stabilizing shaft slides on the fixed plate and presses and contracts the elastic telescopic rod, so that the stripping plate is driven to reset upward under the elastic action of the elastic telescopic rod.

[0011] It can be seen from the above technical solutions that, compared with the prior art, the present invention discloses a stamping die for mechanical parts, which has the following beneficial effects: 1. The present invention sets a pressing component, specifically, drives the top plate to move downward through a hydraulic cylinder. At this time, the pressing component will move downward together, and the pressing ring will first contact the iron sheet to press the iron sheet, and the top plate will drive the upper mold to move downward again, so that the upper mold can smoothly cooperate with the lower mold to perform stamping work. This method can play a fixing role by pressing the iron sheet first, avoiding the iron sheet from warping, improving the stamping accuracy, and greatly reducing the scrapping situation.

[0012] 2. The present invention sets a stripping plate. Specifically, during stamping, the product will enter the lower mold and press the stripping plate downward. At this time, the stabilizing shaft slides on the fixed plate and presses and contracts the elastic telescopic rod. When the stamping is completed, the top plate moves upward and resets, and the upper mold moves away from the lower mold. At this time, the stripping plate will reset upward under the elastic action of the elastic telescopic rod, thereby ejecting the molded product from the mold, making it convenient for the staff to take it out, and the stamping efficiency is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the outer structure of the upper mold of the present invention; Figure 3 It is a schematic diagram of the overall structure of the pressing assembly of the present invention; Figure 4 It is a schematic diagram of the internal cross-sectional structure of the stripping plate of the present invention; Figure 5 It is a schematic diagram of the bottom structure of the top plate of the present invention.

[0015] in: 1. Base; 11. Lower mold; 111. Positioning column; 112. Opening; 12. Top plate; 121. Upper mold; 122. Inner ball slider; 123. Positioning ring; 124. Positioning groove; 125. Socket; 13. Pressing assembly; 131. Pressing ring; 132. Connecting block; 133. Fixing block; 134. Vertical rod; 341. Spring; 135. Docking ring; 351. Positioning block; 352. Latch; 353. Threaded shaft; 354. Nut; 14. Stripping plate; 141. Fixing plate; 142. Stabilizing shaft; 143. Limiting plate; 144. Elastic telescopic rod; 2. Buffer column. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] See also Figure 1-5 As shown, the present invention is a stamping die for mechanical parts, including a base 1, a lower die 11 is fixedly connected to the top of the base 1, a top plate 12 is arranged above the lower die 11, an upper die 121 is fixedly connected to the top of the top plate 12, a pressing assembly 13 is arranged on the outer side of the upper die 121, and the pressing assembly 13 includes a pressing ring 131, four connecting blocks 132 are fixedly connected to the top of the pressing ring 131, and the outer sides of the four connecting blocks 132 are fixedly connected to fixed blocks 133, and the insides of the four fixed blocks 133 are fixedly connected to vertical rods 134, and the tops of the four vertical rods 134 are fixedly connected to docking rings 135, and the outer sides of the vertical rods 134 are sleeved with springs 341, and the bottom of the spring 341 is connected to the The top of the fixed block 133 is fixedly connected, the top of the spring 341 is fixedly connected to the bottom of the docking ring 135, and the top of the docking ring 135 contacts the bottom of the top plate 12. By setting a pressing component 13, specifically by driving the top plate 12 to move downward through a hydraulic cylinder, the pressing component 13 will move downward together, and the pressing ring 131 will first contact the iron sheet to press the iron sheet, and the top plate 12 will 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 play a fixing role by pressing the iron sheet first, thereby avoiding the iron sheet from warping, improving the stamping accuracy, and greatly reducing the scrapping situation.

[0018] The four corners of the top of the lower mold 11 are fixedly connected with positioning columns 111, an opening 112 is opened on the left side of the top of the lower mold 11, the four corners of the top of the base 1 are fixedly connected with buffer columns 2, the four corners of the top of the top plate 12 are fixedly connected with inner ball sliders 122, and the buffer column 2 is slidably set inside the inner ball slider 122.

[0019] Two positioning grooves 124 and four insertion holes 125 are respectively provided inside the top plate 12 . Two positioning rings 123 are fixedly connected to the bottom of the top plate 12 . The corresponding sides of the two positioning rings 123 are plugged into the docking ring 135 .

[0020] Two positioning blocks 351 and four threaded shafts 353 are fixedly connected to the top of the docking ring 135, a pin 352 is inserted inside the positioning block 351, a nut 354 is threadedly connected to the outer side of the threaded shaft 353, the pin 352 is arranged above the top plate 12, the positioning block 351 is inserted into the top plate 12 through the positioning groove 124, and the threaded shaft 353 is inserted into the top plate 12 through the socket 125.

[0021] A stripping plate 14 is provided inside the lower mold 11, and a fixing plate 141 is provided below the stripping 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 at the center of the bottom of the stripping plate 14. A limiting plate 143 is fixedly connected to the bottom of the stabilizing shaft 142. Three elastic telescopic rods 144 are provided 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 stripping plate 14, specifically during stamping, the product will enter the lower mold 11 and press the stripping plate 14 downward. At this time, the stabilizing shaft 142 slides on the fixing plate 141 and presses and contracts the elastic telescopic rods 144. When the stamping is completed, the top plate 12 moves upward to reset, and the upper mold 121 moves away from the lower mold 11. At this time, the stripping plate 14 will reset upward under the elastic action of the elastic telescopic rods 144, so that the molded product will be ejected from the mold, which is convenient for the staff to take out and the stamping efficiency is higher.

[0022] The stabilizing shaft 142 passes through the fixed plate 141 and extends to the bottom of the fixed plate 141. The stabilizing shaft 142 is slidably connected to the fixed plate 141. The top of the limiting plate 143 contacts the bottom of the fixed plate 141. The top of the elastic telescopic rod 144 is fixedly connected to the bottom of the stripping plate 14. The bottom of the elastic telescopic rod 144 is fixedly connected to the bottom of the inner wall of the lower mold 11.

[0023] A specific application of this embodiment is: Insert the docking ring 135 into the positioning groove 124 on the top plate 12 through the positioning block 351, and at the same time, the threaded shaft 353 enters the insertion hole 125. The positioning groove 124 is used to play a positioning role, so that the threaded shaft 353 can be smoothly inserted into the insertion hole 125. After the top of the docking ring 135 contacts the bottom of the top plate 12, it will be plugged with the two positioning rings 123 to position the docking ring 135. Then, insert the pin 352 into the positioning block 351 to support the docking ring 135. At this time, no support is required, which is convenient for the staff to carry out the installation work and more efficient. Then, tighten the nut 3 54 is threaded onto the threaded shaft 353, the docking ring 135 can be fixed, and then the iron sheet is placed on the lower mold 11. The positioning column 111 is used to position the iron sheet, and then the top plate 12 is driven downward by the hydraulic cylinder. At this time, the pressing assembly 13 will move downward together, and the four corners of the top plate 12 will slide on the buffer column 2 through the inner ball slider 122 to improve the stability during movement. At this time, the pressing ring 131 will first contact with the iron sheet, thereby pressing the iron sheet, and the top plate 12 will drive the upper mold 121 to move downward again, then the connecting block 132 will pass The fixing block 133 slides on the vertical rod 134 and squeezes the spring 341, so that the upper mold 121 can cooperate with the lower mold 11 to perform the stamping work smoothly. This method can play a fixing role by pressing the iron sheet first, avoiding the iron sheet from warping, improving the accuracy of stamping, and greatly reducing the scrapping situation. During stamping, the product will enter the lower mold 11 and press the stripping plate 14 downward. At this time, the stabilizing shaft 142 slides on the fixing plate 141 and presses and contracts the elastic telescopic rod 144. When the 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 stripper plate 14 will be reset upward by the elastic action of the elastic telescopic rod 144, so that the molded product will be ejected and demolded, which is convenient for the staff to take out. The limiting plate 143 limits the stripper plate 14 to prevent the stripper plate 14 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 kept under the upper mold 121 by the elastic action of the spring 341, which is convenient for the next pressing. Finally, the staff can take out the waste on the lower mold 11 through the opening 112. When the pressing assembly 13 needs to be maintained after long-term use, the nut 354 is removed, and then the pin 352 is pulled out to release the fixation of the docking ring 135, and then the pressing assembly 13 is pulled downward as a whole to be disassembled, which is convenient for subsequent maintenance and replacement.

[0024] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0025] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0026] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be 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 present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to 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) being fixedly connected to the top of the base (1), a top plate (12) being arranged above the lower die (11), characterized in that: The top of the top plate (12) is fixedly connected to an upper mold (121), the outer side of the upper mold (121) is provided with a pressing assembly (13), the pressing assembly (13) comprises a pressing ring (131), the top of the pressing ring (131) is fixedly connected to four connecting blocks (132), the outer sides of the four connecting blocks (132) are fixedly connected to a fixing block (133), the insides of the four fixing blocks (133) are fixedly connected to a vertical rod (134), the tops of the four vertical rods (134) are fixedly connected to a docking ring (135), the outer sides of the vertical rods (134) are sleeved with a spring (341), the bottom of the spring (341) is fixedly connected to the top of the fixing block (133), the top of the spring (341) is fixedly connected to the bottom of the docking ring (135), and the top of the docking ring (135) contacts the bottom of the top plate (12).

2. A stamping die for mechanical parts according to claim 1, characterized in that: The four corners of the top of the lower mold (11) are fixedly connected to positioning columns (111), the left side of the top of the lower mold (11) is provided with an opening (112), the four corners of the top of the base (1) are fixedly connected to buffer columns (2), the four corners of the top of the top plate (12) are fixedly connected to inner ball sliders (122), and the buffer columns (2) are slidably arranged inside the inner ball sliders (122).

3. A stamping die for mechanical parts according to claim 2, characterized in that: Two positioning grooves (124) and four insertion holes (125) are respectively provided inside the top plate (12), and two positioning rings (123) are fixedly connected to the bottom of the top plate (12), and the corresponding sides of the two positioning rings (123) are plugged into the docking ring (135).

4. A stamping die for mechanical parts according to claim 3, characterized in that: Two positioning blocks (351) and four threaded shafts (353) are respectively fixedly connected to the top of the docking ring (135); a latch (352) is inserted into the interior of the positioning block (351); a nut (354) is threadedly connected to the exterior of the threaded shaft (353); the latch (352) is arranged above the top plate (12); the positioning block (351) is plugged into the top plate (12) via a positioning groove (124); and the threaded shaft (353) is plugged into the top plate (12) via a plug hole (125).

5. A stamping die for mechanical parts according to claim 4, characterized in that: A stripping plate (14) is arranged inside the lower mould (11), a fixing plate (141) is arranged below the stripping plate (14), the outer side of the fixing plate (141) is fixedly connected to the inner wall of the lower mould (11), a stabilising shaft (142) is fixedly connected at the bottom centre of the stripping plate (14), a limiting plate (143) is fixedly connected at the bottom of the stabilising shaft (142), three elastic telescopic rods (144) are arranged inside the fixing plate (141), and the three elastic telescopic rods (144) are arranged in a circular array with the stabilising shaft (142) as the centre.

6. A stamping die for mechanical parts according to claim 5, characterized in that: The stabilizing shaft (142) passes through the fixing plate (141) and extends to below the fixing plate (141); the stabilizing shaft (142) is slidably connected to the fixing plate (141); and the top of the limiting plate (143) contacts the bottom of the fixing plate (141).

7. A stamping die for mechanical parts according to claim 6, characterized in that: The top of the elastic telescopic rod (144) is fixedly connected to the bottom of the stripping plate (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).

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