Stamping device and stamping equipment for producing magnetic metal block

Abstract

The utility model provides a stamping device and stamping equipment for producing a magnetic metal block. The stamping device for producing the magnetic attraction metal block comprises a pre-forming mechanism and a forming mechanism, the pre-forming mechanism comprises a first male die, a first female die and a first insert, the first male die and the first female die are oppositely arranged, the first insert is movably arranged in the first female die, and the first male die and the first female die are oppositely arranged. The first insert and the first female die jointly form a first containing groove, the first insert is provided with a first cylinder forming cavity, the forming mechanism comprises a second male die, a second female die and a second insert, the second male die and the second female die are oppositely arranged, the second insert is movably arranged in the second female die, and the second female die is provided with a second cylinder forming cavity. The second insert and the second female die jointly form a second containing groove, the second insert is provided with a second cylinder forming cavity, and the depth of the second cylinder forming cavity is larger than that of the first cylinder forming cavity.

Description

Technical Field

[0001] This disclosure relates to the field of stamping apparatus, and in particular to a stamping apparatus and stamping equipment for producing magnetic metal blocks. Background Technology

[0002] The production of printed circuit boards (PCBs) involves multiple processes such as lamination, drilling, copper plating, and electroplating. Each process requires securing the PCB to improve processing accuracy. To facilitate PCB mounting, magnetic metal blocks are typically installed on the PCB, while magnets are located at the mounting station. The magnetic blocks and magnets magnetically attract each other, thus securing the PCB. For example, Chinese Patent Application No. CN202222406654.7 discloses a magnetically attached printed circuit board, which uses magnetic blocks on the board for magnetic fixation with magnets.

[0003] For magnetic metal blocks used to fix themselves to circuit boards, positioning posts are required. These posts pass through positioning holes on the circuit board and are soldered using tin filler. The positioning posts make an interference fit with the hole wall as they pass through the positioning hole, and the hole diameter is relatively small. Therefore, the positioning posts need to have high structural strength to prevent breakage when passing through the positioning hole. Traditionally, a stamping machine is used to stamp the material strip to form the magnetic metal block of the corresponding shape. However, stamping is generally done in a single pass, resulting in lower structural strength for the positioning posts on the magnetic metal block.

[0004] Therefore, there is an urgent need for a stamping device that can make the positioning post structure strong and prevent the positioning post from breaking. Utility Model Content

[0005] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide a stamping device and stamping equipment for producing magnetic metal blocks that enables the positioning post structure to have high strength and avoids positioning post breakage.

[0006] The purpose of this disclosure is achieved through the following technical solution:

[0007] A stamping apparatus for producing magnetic metal blocks, comprising:

[0008] The preforming mechanism includes a first punch, a first die, and a first insert. The first punch and the first die are disposed opposite to each other. The first punch is used to connect with a cylinder so that the first punch moves closer to or away from the first die. The first insert is movably disposed in the first die. The first insert and the first die together form a first receiving groove. The first receiving groove is used to place a magnetic metal block for the first stamping. The first insert has a first cylindrical forming cavity.

[0009] The forming mechanism includes a second punch, a second die, and a second insert. The second punch and the second die are disposed opposite to each other. The second punch is used to connect with a cylinder so that the second punch moves closer to or away from the second die. The second insert is movably disposed in the second die. The second insert and the second die together form a second receiving groove. The second receiving groove is used to place the magnetic metal block after the first stamping for a second stamping. The second insert has a second cylindrical forming cavity, the depth of which is greater than the depth of the first cylindrical forming cavity.

[0010] In one embodiment, the first die has a first sliding groove, the first insert is located in the first sliding groove, and the first insert is used to connect with the cylinder so that the first insert is movably disposed in the first die.

[0011] In one embodiment, the second die has a second sliding groove, the second insert is located in the second sliding groove, and the second insert is used to connect with the cylinder so that the second insert is movably disposed in the second die.

[0012] In one embodiment, the depth of the first cylindrical forming cavity is 0.9 mm-1 mm; and / or,

[0013] The depth of the second cylindrical forming cavity is 1.4mm-1.5mm.

[0014] In one embodiment, the diameter of the first cylindrical forming cavity gradually decreases from top to bottom; and,

[0015] The diameter of the second cylindrical forming cavity gradually decreases from top to bottom.

[0016] In one embodiment, the second insert has a boss at one end adjacent to the second punch, and the boss has a third column forming cavity that is connected to the second column forming cavity.

[0017] In one embodiment, the diameter of the third column forming cavity is larger than the diameter of the second column forming cavity.

[0018] In one embodiment, the depth of the third column forming cavity is less than the depth of the second column forming cavity.

[0019] In one embodiment, the second insert and the boss are integrally formed.

[0020] A stamping apparatus, comprising the stamping device for producing magnetic metal blocks as described in any of the above embodiments.

[0021] Compared with the prior art, this disclosure has at least the following advantages:

[0022] The aforementioned stamping device for producing magnetic metal blocks involves placing the metal block in a first receiving groove. A cylinder drives a first punch to move towards a first die, causing the first punch to perform a first stamping of the strip. Under the stamping action, the metal block extends along the first column forming cavity, forming a positioning post on the end face of the metal block. Then, the metal block is placed in a second receiving groove, and a cylinder drives a second punch to perform a second stamping of the metal block. At this time, the positioning post of the metal block extends further into the second column forming cavity, ultimately forming a positioning post of the required length. By performing a second stamping of the metal block through a pre-forming mechanism and a forming mechanism, the grain structure of the positioning post changes, thereby improving the structural strength of the positioning post and preventing it from breaking when embedded in the positioning hole of the circuit board. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of a stamping device for producing magnetic metal blocks according to one embodiment;

[0025] Figure 2 for Figure 1 Another schematic diagram of a stamping device for producing magnetic metal blocks is shown.

[0026] Figure 3 for Figure 1 The diagram shows another structural schematic of a stamping device used to produce magnetic metal blocks;

[0027] Figure 4 To adopt Figure 1 The diagram shows a stamping device used to produce magnetic metal blocks, which stamps the metal blocks into shape. Detailed Implementation

[0028] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure.

[0029] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0031] This disclosure provides a stamping apparatus for producing magnetic metal blocks, including a preforming mechanism and a forming mechanism. The preforming mechanism includes a first punch, a first die, and a first insert. The first punch and the first die are disposed opposite to each other. The first punch is connected to a cylinder to move the first punch closer to or away from the first die. The first insert is movably disposed within the first die. The first insert and the first die together form a first receiving groove for placing the magnetic metal block for a first stamping. The first insert has a first cylindrical forming cavity. The forming mechanism includes a second punch, a second die, and a second insert. The second punch and the second die are disposed opposite to each other. The second punch is connected to a cylinder to move the second punch closer to or away from the second die. The second insert is movably disposed within the second die. The second insert and the second die together form a second receiving groove for placing the magnetic metal block after the first stamping for a second stamping. The second insert has a second cylindrical forming cavity, the depth of which is greater than the depth of the first cylindrical forming cavity.

[0032] The aforementioned stamping device for producing magnetic metal blocks involves placing the metal block in a first receiving groove. A cylinder drives a first punch to move towards a first die, causing the first punch to perform a first stamping of the strip. Under the stamping action, the metal block extends along the first column forming cavity, forming a positioning post on the end face of the metal block. Then, the metal block is placed in a second receiving groove, and a cylinder drives a second punch to perform a second stamping of the metal block. At this time, the positioning post of the metal block extends further into the second column forming cavity, ultimately forming a positioning post of the required length. By performing a second stamping of the metal block through a pre-forming mechanism and a forming mechanism, the grain structure of the positioning post changes, thereby improving the structural strength of the positioning post and preventing it from breaking when embedded in the positioning hole of the circuit board.

[0033] To better understand the technical solutions and beneficial effects of this disclosure, the following detailed description is provided in conjunction with specific embodiments:

[0034] like Figures 1 to 4 As shown, a stamping device 10 for producing magnetic metal blocks according to an embodiment includes a preforming mechanism 100 and a forming mechanism 200. The preforming mechanism 100 includes a first punch 110, a first die 120 and a first insert 130. The first punch 110 and the first die 120 are disposed opposite to each other. The first punch 110 is used to connect with a cylinder so that the first punch 110 is close to or away from the first die 120. The first insert 130 is movably disposed in the first die 120. The first insert 130 and the first die 120 together form a first receiving groove 120a. The first receiving groove 120a is used to place the magnetic metal block for the first stamping. The first insert 130 has a first column forming cavity 131 so that the metal block is initially formed into a positioning column.

[0035] Further, the forming mechanism 200 includes a second punch 210, a second die 220, and a second insert 230. The second punch 210 and the second die 220 are disposed opposite to each other. The second punch 210 is used to connect with a cylinder so that the second punch 210 is close to or away from the second die 220. The second insert 230 is movably disposed in the second die 220. The second insert 230 and the second die 220 together form a second receiving groove 220a. The second receiving groove 220a is used to place the magnetic metal block after the first stamping for the second stamping. The second insert 230 has a second column forming cavity 231. The depth of the second column forming cavity 231 is greater than the depth of the first column forming cavity 131 so that the positioning column is formed into the final required size after the second stamping.

[0036] In this embodiment, the cylinder drives the first punch 110 to move closer to the first die 120. At this time, the first punch 110 performs a first stamping on the metal block placed in the first receiving groove 120a. Under the stamping action, part of the metal block extends into the first column forming cavity 131, so that the bottom of the metal block is initially formed into a positioning post. Then, the metal block is placed in the second receiving groove 220a, and the cylinder drives the second punch 210 to move towards the second die 220, so that the second punch 210 performs a second stamping on the metal block. At this time, the positioning post further extends into the second column forming cavity 231, so as to finally form a positioning post of the required size.

[0037] The aforementioned stamping device 10 for producing magnetic metal blocks involves placing the metal block in a first receiving groove 120a. A cylinder drives a first punch 110 to move towards a first die 120, causing the first punch 110 to perform a first stamping on the strip. Under the stamping action, the metal block extends along the first column forming cavity 131, forming a positioning post on the end face of the metal block. Then, the metal block is placed in a second receiving groove 220a, and a cylinder drives a second punch 210 to perform a second stamping on the metal block. At this time, the positioning post of the metal block further extends into the second column forming cavity 231 to finally form a positioning post of the required length. In this way, the pre-forming mechanism 100 and the forming mechanism 200 perform a second stamping on the metal block, causing a change in the grain structure of the positioning post, thereby improving the structural strength of the positioning post and preventing the positioning post from breaking when embedded in the positioning hole of the circuit board.

[0038] like Figure 1 and Figure 2 As shown, in one embodiment, the first die 120 has a first sliding groove (not shown), and the first insert 130 is located within the first sliding groove. The first insert 130 is used to connect with a cylinder so that the first insert 130 is movably disposed within the first die 120. In this embodiment, the cylinder is connected to the first insert 130 to drive the first insert 130 to move within the first sliding groove to adjust the depth of the first receiving groove 120a.

[0039] like Figure 1 and Figure 2 As shown, in one embodiment, the second die 220 has a second sliding groove (not shown), and the second insert 230 is located within the second sliding groove. The second insert 230 is used to connect with a cylinder so that the second insert 230 is movably disposed within the second die 220. In this embodiment, the cylinder is connected to the second insert 230 to drive the second insert 230 to move within the second sliding groove to adjust the depth of the second receiving groove 220a.

[0040] In one embodiment, the depth of the first column forming cavity 131 is 0.9mm-1mm. In this embodiment, the depth of the first column forming cavity 131 is 0.9mm, so that the length of the positioning column formed by the first stamping is 0.9mm.

[0041] In one embodiment, the depth of the second column forming cavity 231 is 1.4mm-1.5mm. In this embodiment, the depth of the second column forming cavity 231 is 1.5mm, so that the length of the positioning column formed by the second stamping is 1.5mm.

[0042] In one embodiment, the diameter of the first cylindrical forming cavity 131 gradually decreases from top to bottom; and,

[0043] The diameter of the second cylindrical forming cavity 231 gradually decreases from top to bottom.

[0044] Understandably, the diameters of the first column forming cavity 131 and the second column forming cavity 231 gradually decrease from top to bottom so that the final formed positioning post is conical in shape. When the positioning post enters the positioning hole of the circuit board, it enters the positioning hole along the conical surface, reducing the force between the positioning post and the positioning hole wall, and further preventing the positioning post from breaking.

[0045] like Figure 3 As shown, in one embodiment, the second insert 230 has a boss 232 at one end adjacent to the second punch 210. The boss 232 has a third column forming cavity 232a, which is connected to the second column forming cavity 231. It can be understood that the boss 232 has a third column forming cavity 232a, which is used to form an insert block connected to the positioning post. The insert block is used to be embedded in the insert groove of the circuit board to further improve the connection strength between the magnetic metal block and the circuit board.

[0046] In one embodiment, the diameter of the third column forming cavity 232a is larger than the diameter of the second column forming cavity 231. It is understood that the diameter of the third column forming cavity 232a is larger than the diameter of the second column forming cavity 231 so that the diameter of the formed insert block is larger than the diameter of the positioning post.

[0047] In one embodiment, the depth of the third column forming cavity 232a is less than the depth of the second column forming cavity 231. It is understood that the depth of the third column forming cavity 232a is less than the depth of the second column forming cavity 231 so that the length of the formed insert block is less than the length of the positioning post.

[0048] In one embodiment, the second insert 230 and the boss 232 are integrally formed to make the structural strength of the second insert 230 and the boss 232 higher.

[0049] This application also provides a stamping device, including the stamping apparatus 10 for producing magnetic metal blocks as described in any of the above embodiments.

[0050] Compared with the prior art, this disclosure has at least the following advantages:

[0051] The aforementioned stamping device 10 for producing magnetic metal blocks involves placing the metal block in a first receiving groove 120a. A cylinder drives a first punch 110 to move towards a first die 120, causing the first punch 110 to perform a first stamping on the strip. Under the stamping action, the metal block extends along the first column forming cavity 131, forming a positioning post on the end face of the metal block. Then, the metal block is placed in a second receiving groove 220a, and a cylinder drives a second punch 210 to perform a second stamping on the metal block. At this time, the positioning post of the metal block further extends into the second column forming cavity 231 to finally form a positioning post of the required length. In this way, the pre-forming mechanism 100 and the forming mechanism 200 perform a second stamping on the metal block, causing a change in the grain structure of the positioning post, thereby improving the structural strength of the positioning post and preventing the positioning post from breaking when embedded in the positioning hole of the circuit board.

[0052] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A stamping device for producing magnetic metal blocks, characterized in that, include: The preforming mechanism includes a first punch, a first die, and a first insert. The first punch and the first die are disposed opposite to each other. The first punch is used to connect with a cylinder so that the first punch moves closer to or away from the first die. The first insert is movably disposed in the first die. The first insert and the first die together form a first receiving groove. The first receiving groove is used to place a magnetic metal block for the first stamping. The first insert has a first cylindrical forming cavity. The forming mechanism includes a second punch, a second die, and a second insert. The second punch and the second die are disposed opposite to each other. The second punch is used to connect with a cylinder so that the second punch moves closer to or away from the second die. The second insert is movably disposed in the second die. The second insert and the second die together form a second receiving groove. The second receiving groove is used to place the magnetic metal block after the first stamping for a second stamping. The second insert has a second cylindrical forming cavity, the depth of which is greater than the depth of the first cylindrical forming cavity.

2. The stamping device for producing magnetic metal blocks according to claim 1, characterized in that, The first die has a first sliding groove, and the first insert is located in the first sliding groove. The first insert is used to connect with the cylinder so that the first insert is movably disposed in the first die.

3. The stamping device for producing magnetic metal blocks according to claim 1, characterized in that, The second die has a second sliding groove, and the second insert is located in the second sliding groove. The second insert is used to connect with the cylinder so that the second insert is movably disposed in the second die.

4. The stamping device for producing magnetic metal blocks according to claim 1, characterized in that, The depth of the first cylindrical forming cavity is 0.9mm-1mm; and / or, The depth of the second cylindrical forming cavity is 1.4mm-1.5mm.

5. The stamping device for producing magnetic metal blocks according to claim 1, characterized in that, The diameter of the first cylindrical forming cavity gradually decreases from top to bottom; and, The diameter of the second cylindrical forming cavity gradually decreases from top to bottom.

6. The stamping device for producing magnetic metal blocks according to claim 1, characterized in that, The second insert has a boss at one end adjacent to the second punch, and the boss has a third column forming cavity, which is connected to the second column forming cavity.

7. The stamping apparatus for producing magnetic metal blocks according to claim 6, characterized in that, The diameter of the third column forming cavity is larger than the diameter of the second column forming cavity.

8. The stamping apparatus for producing magnetic metal blocks according to claim 6, characterized in that, The depth of the third column forming cavity is less than the depth of the second column forming cavity.

9. The stamping apparatus for producing magnetic metal blocks according to claim 6, characterized in that, The second insert and the boss are integrally formed.

10. A stamping device, characterized in that, The stamping apparatus for producing magnetic metal blocks includes any one of claims 1 to 9.

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