Part die with material pin

Abstract

The invention relates to a part die with a material pin, comprising: an upper die holder in which a first spring is embedded, the first spring is connected with the material pin, and the material pin abuts against a bent part of a part during die pressing to fix the part; the upper mold plate is connected with the upper mold base, and at least one insert is embedded in the upper mold plate; the lower stripping plate is used for stripping; and the lower die holder is connected with the lower stripping plate. Compared with the prior art, the fixing device has the advantages of improving the fixing effect of the bent part of the part and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of molds, and more particularly to a part mold with a stock pin. Background Art

[0002] When producing a large number of parts, most of the existing solutions adopt the production method of an assembly line, that is, the final product is obtained after the initial sheet metal goes through process flows such as shearing, punching, bending, and extrusion. Among them, corresponding machines and workstations are set for each process link to perform corresponding processing on the product, and finally the finished product is obtained. The production method of the assembly line has the advantages of high speed, high efficiency, and high yield. Therefore, the assembly line production is suitable for the use scenario of large-scale production.

[0003] However, for some products with strong professionalism and customization, due to the small production quantity, the cost-effectiveness of using assembly line production is low. Therefore, most of them adopt the production method of mold production. Since some punching parts and forming parts of the mold can be reused, during production, only according to the structural characteristics of the target product, the punching parts and forming parts are fixed on the mold, and production can be achieved.

[0004] In the actual production process, in order to ensure the accuracy of the positions such as part ribbing and bending, the parts need to be positioned and fixed during the die pressing process, which is usually achieved by the cooperation of guide pillars and guide sleeves. However, for the area where the part needs to be bent, especially the position where it needs to be bent and ribbed, it is easy to have insufficient fixation, resulting in the ribbing deviating from the expected position and increasing the defective rate.

[0005] In summary, there is currently a lack of a part mold to improve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to overcome the above-mentioned defects existing in the prior art and provide a part mold with a stock pin to improve the fixation efficiency of the bending part.

[0007] The purpose of the present invention can be realized by the following technical solutions:

[0008] The present invention provides a part mold with a stock pin, including:

[0009] An upper die base, in which a first spring is embedded, the first spring is connected to a stock pin, and the stock pin abuts against the bending part of the part during die pressing to fix the part;

[0010] An upper template, connected to the upper die base, and at least one insert is embedded in the upper template;

[0011] A lower stripping plate for placing the parts to be formed;

[0012] A lower die base, connected to the lower stripping plate.

[0013] As a preferred technical solution, the longitudinal section of the material pin is trapezoidal.

[0014] As a preferred technical solution, a bending slider and a locking block are also embedded in the upper template.

[0015] As a preferred technical solution, it further includes:

[0016] A lower backing plate is arranged between the lower stripper plate and the lower stripper plate, and a bead pressing member is arranged on the lower backing plate.

[0017] As a preferred technical solution, the position where the bead pressing member presses the bead is at the position where the material pin is fixed.

[0018] As a preferred technical solution, it further includes:

[0019] A third spring is respectively connected to the lower die base and the lower stripper plate.

[0020] As a preferred technical solution, it further includes:

[0021] A positioning pin is connected to the lower die base through a second spring.

[0022] As a preferred technical solution, it further includes:

[0023] An inner guide pillar is connected to the lower die base and penetrates through the lower stripper plate;

[0024] An inner guide bush is arranged on the upper template and is matched with the inner guide pillar.

[0025] As a preferred technical solution, it further includes:

[0026] An outer guide pillar is connected to the upper die base;

[0027] An outer guide bush is connected to the lower die base and is matched with the outer guide pillar.

[0028] As a preferred technical solution, it further includes:

[0029] An upper supporting plate is connected to the upper die base through an upper cushion block;

[0030] A lower supporting plate is connected to the lower die base through a lower cushion block.

[0031] Compared with the prior art, the present invention has at least one of the following beneficial effects:

[0032] Improve the fixing effect of the bent part of the part: In this application, a material pin connected by a first spring is arranged on the upper die base, which abuts against the bent part of the part during die pressing to achieve fixation. During die pressing, the first spring pushes out the material pin to tightly press and fix one side of the part to be bent, preventing subsequent bending and / or bead rolling from being displaced due to unstable fixation, and improving the yield rate of the produced parts. Brief Description of the Drawings

[0033] Figure 1 It is a front view of the part die when it is opened in the embodiment;

[0034] Figure 2 It is a front view of the part die during die pressing in the embodiment;

[0035] Figure 3 It is a side view of the part die during die pressing in the embodiment;

[0036] Figure 4 It is a schematic diagram of the upper template in the embodiment, where (a) is the side view and (b) is the top view;

[0037] Figure 5 It is a schematic diagram of the lower stripper plate in the embodiment;

[0038] Figure 6 It is a schematic diagram of the lower backing plate in the embodiment;

[0039] Figure 7 It is a schematic diagram of the locking block in the embodiment, where (a) is the top view and (b) is the front view,

[0040] Among them, 1. upper support plate, 2. upper spacer block, 3. upper die base, 4. upper template, 5. lower stripper plate, 6. lower backing plate, 7. lower die base, 8. lower spacer block, 9. lower support plate, 10. first spring, 11. material pin, 12. bending slider, 13. locking block, 14. bead rolling part, 15. third spring, 16. positioning pin, 17. second spring, 18. inner guide pillar, 19. outer guide pillar, 20. outer guide sleeve, 21. part, 22. insert. Detailed Description of the Invention

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0042] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the inventive product is customarily placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0043] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more, unless otherwise specifically defined.

[0044] This embodiment provides a part mold with a stock pin for manufacturing part 21. Refer to Figure 1 , and its main structure from top to bottom includes:

[0045] The upper bolster plate 1 is used to fix the whole mold on the punching press.

[0046] The upper spacer block 2 is used to increase the height of the mold to cooperate with the punching press to achieve mold closing.

[0047] The upper die holder 3 is used to fix the upper template 4 and transfer pressure during mold closing.

[0048] The upper template 4 is used to clamp inserts 22, punches, etc.

[0049] The lower stripper plate 5 is used to guide the punches and inserts to achieve blank holding and stripping.

[0050] The lower backing plate 6 is used for buffering to prevent damage.

[0051] The lower die holder 7 cooperates with the upper die holder 3 to achieve blanking.

[0052] The lower spacer block 8 is similar to the upper spacer block 2 and is used to increase the height of the mold.

[0053] The lower bolster plate 9 is used to fix the mold on the punching press.

[0054] Compare Figure 1 and Figure 3, a first spring 10 is fixedly connected inside the upper die base 3, and the first spring 10 is connected to a stock pin 11 with a trapezoidal cross-section, which can fix one side of the part 21 that needs to be bent in the closed die state, thus providing a stable basis for subsequent bending operations. See Figure 5 is a schematic diagram of the lower stripper plate 5, where A represents the projection of the contact surface between the stock pin 11 and the part 21 on the lower stripper plate 5. See Figure 1 , part of the stock pin 11 is located in the upper template 4, which does not affect the die pressing. In addition, the longitudinal cross-section of the stock pin 11 is trapezoidal, which has better guiding performance compared with a rectangular cross-section.

[0055] See Figure 4 is a schematic diagram of the upper template 4, which is embedded with a bending slider 12 and a locking block 13. When the die is closed, the locking block 13 is positioned and limited to assist the bending slider 12 in bending the part 21. Among them, the structure of the locking block 13 is as Figure 7 shown.

[0056] See Figure 6 is a schematic diagram of the lower backing plate 6. Among them, the bead punch (i.e., the bead pressing part 14) is fixed on a bending punch for bending, and multiple die springs (i.e., the second springs 17) penetrate the lower backing plate. Compare Figure 5 and Figure 6 , it can be seen that the fixed position of the stock pin 11 is at the corners corresponding to the two sides of the part 21 to be bent.

[0057] See Figure 1 and Figure 2 , an outer guide post 19 is connected to the upper die base 3, and an outer guide sleeve 20 matching the outer guide post 19 is connected to the lower die base 7, which plays a guiding and positioning role when the die is closed.

[0058] See Figure 1 , an inner guide post 18 penetrating the lower stripper plate 5 is arranged on the lower backing plate 6, and a third spring 15 is fixed on the lower die base 7. The third spring 15 is connected to a positioning pin 16, and the positioning pin 16 directly contacts and fixes the part 21 when the die is closed, thus further ensuring the accuracy when the die is closed.

[0059] During die pressing, the die changes from the Figure 1 state to the Figure 2 state. The part 21 is pre-positioned by the positioning pin 16, the punch press applies pressure to the upper platen 1 and the lower platen 9. The outer guide post 18, the outer guide sleeve 19 and the inner guide post 18 ensure the alignment between the plates during die pressing. The locking block 13 fixes one side of the position where the part 21 needs to be bent, and the first spring 10 connected to the locking block 13 ensures that the locking block 13 will not damage the part 21. The insert 21, the bead pressing part 14 and the bending slider 12 respectively perform punching, bead pressing, bending and other treatments on the part 21 to realize the forming of the part 21.

[0060] In this embodiment, the outer guide pillar 19 and the outer guide sleeve are implemented by RRK2810L8-5, and the first spring 10 is implemented by implemented, the positioning pin 16 is implemented by SSPT5-15.0-P4.90, and the second spring 17 is implemented by implemented. In actual applications, other parts that can achieve the same function can also be selected.

[0061] As mentioned above, the above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A part mold with a material pin, characterized in that, Comprising: An upper die base (3) with a first spring (10) embedded therein. The first spring (10) is connected to a stock pin (11), and the stock pin (11) abuts against the bent part of the part during die pressing to fix the part. An upper template (4) connected to the upper die base (3), and at least one insert (22) is embedded in the upper template (4). A lower stripping plate (5) for placing the part to be formed. A lower die base (7) connected to the lower stripping plate (5).

2. The part mold with a stock pin according to claim 1, characterized in that, The longitudinal section of the stock pin (11) is trapezoidal.

3. A part mold with a material pin according to claim 1, characterized in that A bending slider (12) and a locking block (13) are also embedded in the upper template (4).

4. A part mold with a stock pin according to claim 1, characterized in that, Also comprising: A lower backing plate (6) disposed between the lower stripping plate (5) and the lower die base (7), and a bead pressing member (14) is provided on the lower backing plate (6).

5. A part mold with a material pin according to claim 4, characterized in that, The position where the bead pressing member (14) presses the bead is at the position fixed by the stock pin (11).

6. The part mold with a material pin according to claim 1, characterized in that, Also comprising: A third spring (15) connected to the lower die base (7) and the lower stripping plate (5) respectively.

7. A part mold with a stock pin according to claim 1, characterized in that, Also comprising: A positioning pin (16) connected to the lower die base (7) through a second spring (17).

8. A part mold with a stock pin according to claim 1, characterized in that, Also comprising: An inner guide pillar (18) connected to the lower die base (7) and passing through the lower stripping plate (5).

9. A part mold with a stock pin according to claim 1, characterized in that, Also comprising: An outer guide pillar (19) connected to the upper die base (3); An outer guide bush (20) connected to the lower die base (7) and matching with the outer guide pillar (19).

10. A part mold with a stock pin according to claim 1, characterized in that, Also comprising: An upper supporting plate (1) connected to the upper die base (3) through an upper spacer block (2); A lower supporting plate (9) connected to the lower die base (7) through a lower spacer block (8).

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