An assistable positioning mold

Abstract

This application provides a mold with assisted positioning, relating to the field of mold technology. It includes an upper mold and a lower mold, an upper mold inner plate installed at the center of the bottom of the upper mold, and a lower mold inner plate installed at the center of the upper end of the lower mold. A primary positioning assembly includes four sets of outer guide pillars and four sets of outer guide sleeves. The four sets of outer guide pillars are respectively located at the four corners of the bottom of the upper mold, and the four sets of outer guide sleeves are respectively located at the four corners of the upper end of the lower mold. This invention optimizes the fixing method of the outer guide pillars of the upper mold by adding guide positioning plates to the originally independent four outer guide pillars. This maintains the relative stability of the four outer guide pillars, improving the overall rigidity of the four outer guide pillars, thereby increasing the positioning accuracy when the upper and lower molds are closed, reducing the wear between the outer guide pillars and outer guide sleeves, as well as between the inner guide pillars and inner guide sleeves, increasing service life, and also improving the stamping accuracy of sheet metal stamping parts.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to a mold that can assist in positioning. Background Technology

[0002] In conventional sheet metal mold design, the mold consists of an upper mold and a lower mold. The upper and lower mold components are precisely positioned using external and internal guide pillars to ensure they remain in the same position during stamping and closing. Refer to the attached diagram in the instruction manual. Figure 3 The diagram shows a typical sheet metal stamping die. The upper die is equipped with outer and inner guide pillars, and the lower die is equipped with outer and inner guide sleeves. The upper and lower dies are mounted on the upper and lower die holders of the press, respectively. The upper die moves up and down with the die holders of the press to complete the stamping action. For single-operation dies, manual handling is required when loading and unloading parts, so the press stroke is relatively large. When the press stops at the top dead center, the distance between the upper and lower parts is relatively large to facilitate manual loading and unloading. At this time, the inner and outer guide pillars will detach from the inner and outer guide sleeves, that is, the upper and lower dies are completely separated. At this time, due to the influence of vibration, press precision, and machining precision of the upper and lower dies, when the upper die moves downward again to complete the die closing, the inner and outer guide pillars will be offset, thus affecting the positioning accuracy of the upper and lower dies when they close.

[0003] To address the aforementioned problems, we propose a mold with assisted positioning. Utility Model Content

[0004] To address the problems in the background art, this utility model provides a mold that can assist in positioning.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A positioning-assisted mold includes an upper mold and a lower mold, an upper mold inner plate installed at the bottom center of the upper mold, and a lower mold inner plate installed at the upper center of the lower mold; a primary positioning assembly, comprising four sets of outer guide pillars and four sets of outer guide sleeves, the four sets of outer guide pillars being respectively disposed at the bottom four corners of the upper mold, and the four sets of outer guide sleeves being respectively disposed at the upper four corners of the lower mold; a secondary positioning assembly, comprising four sets of inner guide pillars and four sets of inner guide sleeves, the four sets of inner guide pillars being respectively disposed at the bottom four corners of the upper mold inner plate, and the four sets of inner guide sleeves being respectively disposed at the upper four corners of the lower mold inner plate; and a guide positioning plate installed on the periphery of the upper mold inner plate, with all four sets of outer guide pillars slidably connected to the guide positioning plate.

[0007] Preferably, the guide positioning plate has guide sleeve holes at all four inner corners, a copper sleeve is tightly installed in the middle of the inner side of the guide sleeve hole, and a steel ball guide sleeve is installed in the middle of the inner side of the copper sleeve.

[0008] Preferably, the outer guide post is slidably installed in the middle of the inner side of the ball bearing guide sleeve, and the outer guide post and the ball bearing guide sleeve are tightly fitted together.

[0009] Preferably, the four sets of outer guide posts are respectively arranged at the upper middle part of the four sets of outer guide sleeves, and when the upper mold and the lower mold are closed and connected, the outer guide posts and the outer guide sleeves are inserted into each other.

[0010] Preferably, the four sets of inner guide pillars are respectively arranged at the upper middle part of the four sets of inner guide sleeves, and when the upper mold and the lower mold are closed and connected, the inner guide pillars and the inner guide sleeves are inserted into each other.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This utility model optimizes the fixing method of the outer guide pillars of the upper mold by adding guide positioning plates to the original four independent outer guide pillars. This keeps the positions of the four outer guide pillars relatively stable, improves the overall rigidity of the four outer guide pillars, thereby increasing the positioning accuracy when the upper and lower molds are closed, reducing the wear between the outer guide pillars and outer guide sleeves, as well as between the inner guide pillars and inner guide sleeves, improving service life, and also improving the stamping accuracy of sheet metal stamping parts. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;

[0015] Figure 3 This is a schematic diagram of the structure of this utility model after the guide positioning plate has been removed.

[0016] In the picture:

[0017] 1. Upper mold; 11. Upper mold inner plate; 2. Lower mold; 21. Lower mold inner plate;

[0018] 3. Inner guide post; 4. Inner guide sleeve; 5. Outer guide post; 6. Outer guide sleeve; 7. Guide positioning plate; 8. Steel ball guide sleeve; 9. Copper sleeve. Detailed Implementation

[0019] The technical solution in this application embodiment is to solve the problems mentioned in the background art, and the overall idea is as follows:

[0020] Example: Refer to Figure 1 - Figure 3 As shown, a positioning-assisted mold in this embodiment includes an upper mold 1 and a lower mold 2, as well as an upper mold inner plate 11 installed at the bottom center of the upper mold 1 and a lower mold inner plate 21 installed at the upper center of the lower mold 2.

[0021] The primary positioning component includes four sets of outer guide pillars 5 and four sets of outer guide sleeves 6. The four sets of outer guide pillars 5 are respectively set at the four bottom corners of the upper mold 1, and the four sets of outer guide sleeves 6 are respectively set at the four top corners of the lower mold 2. The four sets of outer guide pillars 5 are respectively set at the middle of the upper part of the four sets of outer guide sleeves 6.

[0022] When the upper mold 1 and the lower mold 2 are closed and connected, the outer guide post 5 and the outer guide sleeve 6 are inserted to form a primary positioning.

[0023] The secondary positioning assembly includes four sets of inner guide pillars 3 and four sets of inner guide sleeves 4. The four sets of inner guide pillars 3 are respectively located at the four bottom corners of the upper mold inner plate 11, and the four sets of inner guide sleeves 4 are respectively located at the four upper corners of the lower mold inner plate 21. The four sets of inner guide pillars 3 are respectively located at the upper center of the four sets of inner guide sleeves 4. When the upper mold 1 and the lower mold 2 are closed and connected, the inner guide pillars 3 and the inner guide sleeves 4 are inserted into each other, forming a secondary positioning, which further ensures the accurate positioning of the upper mold 1 and the lower mold 2.

[0024] The guide positioning plate 7 is installed on the outer periphery of the inner plate 11 of the upper mold. The four sets of outer guide posts 5 are slidably connected to the guide positioning plate 7. The guide positioning plate 7 has guide sleeve holes at the four corners of its inner side. A copper sleeve 9 is tightly installed in the middle of the inner side of the guide sleeve hole. A steel ball guide sleeve 8 is installed in the middle of the inner side of the copper sleeve 9. The outer guide posts 5 are slidably installed in the middle of the inner side of the steel ball guide sleeve 8. The outer guide posts 5 and the steel ball guide sleeve 8 are tightly fitted together.

[0025] The guide positioning plate 7 is positioned according to the stroke of the upper mold 1. The guide positioning plate 7 is moved downward as much as possible to keep the positions of the four outer guide pillars 5 relatively stable, thereby increasing the overall rigidity of the four outer guide pillars 5 and thus increasing the positioning accuracy when the upper mold 1 and the lower mold 2 are closed.

[0026] The working principle of this utility model is as follows:

[0027] Before use, the upper die 1 and lower die 2 are in a combined state, with the outer guide post 5 inserted into the outer guide sleeve 6. During die assembly, the die is placed between the upper and lower die seats of the punch press. After the upper die seat of the punch press lowers and contacts the upper die 1, the upper die 1 and lower die 2 are locked onto the upper and lower die seats of the punch press using locking bolts. For single-sequence engineering dies, the opening height of the upper and lower dies needs to be relatively large. In this case, the outer guide post 5 and outer guide sleeve 6 will completely separate to ensure convenient handling of parts and the safety of operators. During die stamping, after the press reaches its top stop, the distance between the upper die 1 and the lower die 2 is at its maximum. After the part is placed in the press, the upper die holder moves the upper die 1 downwards. During this movement, the outer guide post 5 mounted on the upper die 1 first enters the outer guide sleeve 6, and the outer guide post 5 and the outer guide sleeve 6 engage to form primary positioning, initially ensuring the relative position of the upper die 1 and the lower die 2. As the upper die 1 continues to move downwards, the inner guide post 3 mounted on the upper die 1 engages with the inner guide sleeve 4 mounted on the lower die 2 to form secondary positioning, further ensuring the precise position of the upper die 1 and the lower die 2. After the inner guide post 3 and the inner guide sleeve 4 engage, the upper die holder continues to move downwards with the upper die 1. At this point, the upper die 1 and the lower die 2 complete the stamping action under the dual positioning of the outer guide post 5 and the inner guide post 3, ensuring the precise stamping of the part.

[0028] Furthermore, in actual use, the outer guide pillars 5 are designed to be relatively long, and their installation points are located on the upper mold 1, in a relatively independent state. Therefore, the accuracy error of the four outer guide pillars 5 during installation will be relatively large. At the same time, the long length of the four outer guide pillars 5 results in relatively poor fit accuracy between their ends and the outer guide sleeves 6, leading to increased wear on the outer guide sleeves 6. This, in turn, affects the fit accuracy between the inner guide pillars 3 and the inner guide sleeves 4, and accelerates the wear of the inner guide pillars 3 and the inner guide sleeves 4, ultimately affecting the stamping accuracy of the parts. This utility model patent adds a guide positioning plate 7 to the inner plate 11 of the upper mold. The guide positioning plate 7 has four precisely machined guide sleeve holes that fit tightly with the copper sleeve 9. The copper sleeve 9 contains a steel ball guide sleeve 8, which fits tightly with the outer guide pillars 5.

[0029] The guide positioning plate 7 can move up and down along the outer guide post 5, following the inner plate 11 of the upper mold. Due to the action of the steel ball guide sleeve 8 on the guide positioning plate 7, the overall rigidity of the outer guide post 5 is improved, thereby increasing the positioning accuracy of the four outer guide posts 5. This reduces the positional deviation with the four outer guide sleeves 6, reducing wear. Simultaneously, it makes the positioning of the inner guide post 3 and inner guide sleeve 4 more precise. Ultimately, while increasing positioning accuracy, it reduces the wear between the outer guide post 5 and outer guide sleeve 6, as well as between the inner guide post 3 and inner guide sleeve 4, improving service life and enhancing the accuracy of part stamping.

[0030] The guide and positioning plate 7 of this utility model can be made of inexpensive 45# steel, resulting in relatively low processing costs and a reduction in plate thickness. In contrast, the upper mold inner plate 11 and the lower mold inner plate 21 are usually made of mold steel, which has higher material and processing costs and greater thickness. Compared to enlarging the mold inner plate for positioning and guiding purposes, this method can effectively reduce mold costs.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A mold for assisted positioning, characterized in that, It includes an upper mold (1) and a lower mold (2), as well as an upper mold inner plate (11) installed at the middle of the bottom end of the upper mold (1) and a lower mold inner plate (21) installed at the middle of the upper end of the lower mold (2). The primary positioning component includes four sets of outer guide pillars (5) and four sets of outer guide sleeves (6). The four sets of outer guide pillars (5) are respectively set at the four bottom corners of the upper mold (1), and the four sets of outer guide sleeves (6) are respectively set at the four top corners of the lower mold (2). The secondary positioning component includes four sets of inner guide pillars (3) and four sets of inner guide sleeves (4). The four sets of inner guide pillars (3) are respectively set at the bottom four corners of the upper mold inner plate (11), and the four sets of inner guide sleeves (4) are respectively set at the top four corners of the lower mold inner plate (21). The guide positioning plate (7) is installed on the periphery of the inner plate (11) of the upper mold, and the four sets of outer guide pillars (5) are slidably connected to the guide positioning plate (7).

2. The mold for assisted positioning according to claim 1, characterized in that, The guide positioning plate (7) has guide sleeve holes at its four inner corners. A copper sleeve (9) is tightly installed in the middle of the inner side of the guide sleeve hole. A steel ball guide sleeve (8) is installed in the middle of the inner side of the copper sleeve (9).

3. The mold for assisted positioning according to claim 2, characterized in that, The outer guide post (5) is slidably installed in the middle of the inner side of the ball bearing guide sleeve (8), and the outer guide post (5) and the ball bearing guide sleeve (8) are closely fitted together.

4. The assisted positioning mold according to claim 3, characterized in that four sets of... The outer guide post (5) is respectively set at the upper middle part of the four sets of outer guide sleeves (6), and when the upper mold (1) and the lower mold (2) are closed and connected, the outer guide post (5) and the outer guide sleeve (6) are inserted into each other.

5. The assisted positioning mold according to claim 4, characterized in that, The four sets of inner guide pillars (3) are respectively set at the upper middle part of the four sets of inner guide sleeves (4), and when the upper mold (1) and the lower mold (2) are closed and connected, the inner guide pillars (3) and the inner guide sleeves (4) are inserted into each other.

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