CN219924310U - Side plastic mould - Google Patents

Abstract

The utility model discloses a side shaping die, which comprises a lower die and an upper die and is characterized in that: the middle part of the lower die is provided with a lower profiling part which is matched with the outline of the lower surface of the left bracket of the lower thrust rod; a limiting block and a locating pin are fixedly arranged on the lower die; the limiting block is used for limiting the edge of the left bracket of the lower thrust rod; the locating pin is used for being inserted into a locating hole of the left bracket of the lower thrust rod; the middle part of the upper die is provided with an upper profiling part which is matched with the outline of the upper surface of the left bracket of the lower thrust rod; and the upper die is provided with a locating pin avoidance hole and a limiting block avoidance groove. The die disclosed by the utility model can be used for shaping and forming the left bracket of the lower thrust rod, can realize quick and accurate piece placement, and has the advantages of good shape consistency and stability after forming, high dimensional accuracy and the like.

Description

A side plastic mold

Technical field

The utility model belongs to the technical field of stamping molds, and particularly relates to a side shaping mold.

Background technique

There is an existing lower thrust rod left bracket (belonging to automobile parts), the original stamping process of which is: blanking and punching - drawing - first forming - second forming - side punching. Each process is stamped using different molds.

However, during production, it was discovered that the second wing portion N-2 of the lower thrust rod left bracket N would be upturned after the first molding (compare Figure 1-2). After the improvement, a side shaping process was required ( See Figure 3). The new process is: blanking and punching-drawing-first forming-side shaping (new process)-second forming-side punching. This new process requires that the second wing portion N-3 (upturned state) of the lower thrust rod left bracket after the first molding be corrected to keep it flat with the first wing portion N-2, so it is necessary to design a A special set of side shaping molds.

Currently known or disclosed molds are unfeasible and not universal.

Utility model content

The purpose of this utility model is to provide a side shaping mold to solve the problem that the existing mold cannot realize the correction of the second wing plate part N-3 of the lower thrust rod left bracket N and maintain it with the first wing plate part N-2. Flat technical issues.

In order to achieve the above object, the solution of the present utility model is: a side shaping mold, including a lower mold and an upper mold, which is characterized in that: the middle part of the lower mold has a lower profiling part, and the lower profiling part and the lower thrust rod The contour of the lower surface of the left bracket matches; the lower mold is fixed with a limit block and a positioning pin; the limit block is used to limit the edge of the lower thrust rod left bracket; the positioning pin is used to insert the lower thrust rod left In the positioning hole of the bracket; the middle part of the upper mold has an upper profiling part, which matches the contour of the upper surface of the left bracket of the lower thrust rod; the upper mold is provided with a positioning pin avoidance hole and a limiter Block escape groove.

Using the above solution, the working steps are as follows:

The first step is to position and place the parts. First, position the lower thrust rod left bracket on the lower profiling part of the lower mold, and make the first wing plate part of the lower thrust rod left bracket fit with the left part of the lower profiling part. The lower thrust rod left bracket The middle arch part fits the middle part of the upper profiling part, and the edge of the left bracket of the lower thrust rod is close to or in contact with the limit block and is limited; the positioning pin is inserted into the positioning hole of the left bracket of the lower thrust rod to be positioned. ; At this time, the lower thrust rod left bracket is stably installed on the lower profiling part and is accurately limited and positioned, which can ensure the attitude, direction and position accuracy of the lower thrust rod left bracket;

The second step is stamping and forming. When the upper mold moves downward (if driven by a press), the upper mold will first punch the second wing plate part of the left bracket of the lower thrust rod, and the lower profiling part of the upper mold will be molded together with the lower profiling part to make the third The two wing portions are deformed in place, and at the same time, the middle arch portion and the first wing portion of the lower thrust rod left bracket are shaped in place. At this time, the first wing portion and the second wing portion are mutually flat and the shape is corrected; During the molding process, the left bracket of the lower thrust rod is limited by the outer limit block and will not vibrate, jump or slip. At the same time, the left bracket of the lower thrust rod is accurately positioned by the positioning pin; therefore, the appearance after molding can be guaranteed. The advantages of good consistency and stability and high dimensional accuracy.

The third step is to open the mold and pick up the parts. The upper mold moves upward to complete the mold opening; and after the mold is opened, the middle part of the left bracket of the lower thrust rod is arched and protruded, so that it can be easily taken out.

Therefore, this technical solution can solve the technical problem that the existing mold cannot achieve the technical problem of keeping the second wing plate portion 3 of the lower thrust rod left bracket flat with the first wing plate portion after modification. At the same time, this technical solution can realize fast and accurate placement of parts through the combined effect of the limit block and the positioning pin positioning. During the stamping and forming process, the workpiece maintains accurate shape, direction and position and will not loosen or move. , which can achieve the advantages of good shape consistency and stability and high dimensional accuracy after molding.

Further, the lower profile portion has a first bottom slope profile segment, a first vertical profile segment, a top profile segment, a second vertical profile segment and a second bottom slope profile segment, and the first bottom slope profile The segment is parallel to the second bottom slope contour segment;

The upper profiling part matches the lower profiling part correspondingly.

Further, there are four limit blocks and they are respectively used to limit the front, rear, left, and right edges of the lower thrust rod left bracket.

Further, the limiting block is detachably fixed on the lower mold.

Further, the positioning pin is detachably fixed on the lower profiling portion.

Further, the lower profiling portion has convex steps of equal height along the circumferential edge.

Further, the thickness of the convex steps of equal height is 2-3 mm.

Further, the lower mold is installed on the lower mold base; the upper mold is installed on the upper mold base.

Beneficial effects of this utility model:

First, the utility model can solve the technical problem that the existing mold cannot achieve the technical problem of keeping the second wing portion of the lower thrust rod left bracket N flat with the first wing portion after modification; at the same time, the utility model adopts the above-mentioned method. The combined effect of the limit block and the positioning pin positioning can achieve fast and accurate placement. During the stamping and molding process, the workpiece maintains accurate shape, direction and position without loosening or shifting, making the shape consistent after molding. Good performance and stability, high dimensional accuracy and other advantages;

Second, in this utility model, since the lower profiling part has convex steps of equal height along the circumferential edge, the lower profiling part on the lower mold can be independently processed with high precision without requiring all high-precision processing of the lower mold, which can be greatly improved. Reduce the lower mold processing production and reduce the cost by about 1/3. At the same time, a 2-3mm thick mold repair allowance is reserved, so that the mold can be repaired when the outer surface of the lower profiling part is worn, while reducing the difficulty of the mold repair process and the processing cost;

Third, in the present utility model, since the first side wall surface in the middle arch portion of the left bracket of the lower thrust rod is vertically aligned with the first vertical profile segment during assembly, the top portion of the middle arch portion of the left bracket of the lower thrust rod is vertically aligned. The second vertical surface contour section is vertically attached to the second side wall surface in the middle arch after shaping, which ensures that the entire second wing plate portion can be processed when the upper mold moves vertically downwards. The extrusion function can avoid the problem of partial shaping and poor molding quality due to deviation. At the same time, it is also easy to pull out when opening the mold after the body shaping is completed.

Description of the drawings

Figure 1 is the appearance of the right mounting bracket of the lower thrust rod when the first molding process is completed.

Figure 2 is an outline view of the right mounting bracket of the lower thrust rod after it has been processed by a side shaping mold of the present invention.

Figure 3 shows the comparative change of the right mounting bracket of the lower thrust rod before and after side shaping.

Figure 4-5 is a schematic structural diagram of the lower mold.

Figure 6 is a schematic structural diagram of the upper mold.

Figures 7-9 are schematic structural diagrams of the upper mold of a side shaping mold in Embodiment 1 of the present invention when the parts are positioned and placed in place and the upper mold is ready for downward stamping and closing.

Figures 10-13 are schematic structural diagrams of the upper mold of a side shaping mold in Embodiment 1 of the present invention when the upper mold is downwardly stamped and clamped in place.

Figures 14-15 are schematic structural diagrams of a side shaping mold in Embodiment 1 of the present invention when the upper mold is opened upward and in place and parts are taken out accurately.

Figure 16 is a schematic structural diagram of the upper mold of a side shaping mold in Embodiment 2 of the present invention when the upper mold base is downwardly stamped and clamped in place.

Figure 17 is a perspective view of the lower mold and the lower mold base in the assembled state in the second embodiment of the present invention.

Figure 18 is a perspective view of the upper mold and the upper mold base in the assembled state in the second embodiment of the present invention.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings and examples:

Embodiment 1: Refer to Figure 4-15, a side shaping mold includes a lower mold 1 and an upper mold 2.

The shaping mold on this side is used for shaping the lower thrust rod left bracket N (which has been formed for the first time, the shape of Figure 1), and is shaped from the shape of Figure 1 to the shape of Figure 2. Specifically, after the first molding process is completed, the lower thrust rod left bracket N has a central arch portion N-1, a first wing portion N-2 and a second wing portion N-3. The bracket N is roughly in the shape of a geometric shape, and the central arch N-1 is provided with a positioning hole N-11. After being shaped by the shaping mold on this side, the first wing portion N-2 and the second wing portion N-3 of the lower thrust rod left bracket N are required to be flat with each other (see Figures 2 and 3).

Referring to Figure 4-5, the middle part of the lower mold 1 has a lower profiling portion 1-1, and the lower profiling portion 1-1 matches the contour of the lower surface of the lower thrust rod left bracket N.

As can be seen in Figures 11 and 5, the upper mold 2 has an upper profiling portion 2-1 in the middle, and the upper profiling portion 2-1 matches the contour of the upper surface of the lower thrust rod left bracket N; It is provided with positioning pin escape holes 2-2 and limit block escape grooves 2-3.

Among them, the lower mold 1 is fixed with a limiting block 3 and a positioning pin 4; the limiting block 3 is used to limit the N edge of the lower thrust rod left bracket; the positioning pin 4 is used to insert the lower thrust rod left bracket N positioning hole N-11.

Referring to Figures 4-5, there are four limiting blocks 3 and they are respectively used to limit the front, rear, left, and right edges of the lower thrust rod left bracket N (see Figure 9).

Referring to Figures 4-5, the limiting block 3 is detachably fixed on the lower mold 1. Specifically, the lower part of the limiting block 3 can be detachably fixed on the lower mold 1 through bolts. The limiting block 3 can be disassembled, replaced or adjusted in position.

Referring to Figure 11, the positioning pin 4 is detachably fixed on the lower profiling portion 1-1. The positioning pin 4 is threadedly connected to the lower profiling portion 1-1 and fixed. The positioning pin 4 can be removed and replaced or the depth can be adjusted.

In addition, there are equal-height convex steps 1-2 along the circumferential edge of the lower profiling portion 1-1. Wherein, the thickness of the convex steps 1-2 of equal height is 2-3mm. In this embodiment, the thickness of the equal-height convex steps 1-2 is 2.5 mm (see Figures 4 and 11).

As shown in Figure 11, when the mold is closed, the lower profiling portion 1-1 of the lower mold 1 matches the upper profiling portion 2-1 of the upper mold 2, and the lower profiling portion 1-1 and the upper profiling portion 2 -1 forms a workpiece forming gap.

As shown in Figure 11, when the mold is closed in place, the upper end of the positioning pin 4 extends out of the lower thrust rod and the protruding part of the left bracket N will be inserted into the positioning pin avoidance hole 2-2 of the upper mold 2 and will not collide. to the upper mold 2, which can ensure safe mold closing; at the same time, the limit block 3 will be inserted into the limit block avoidance groove 2-3 of the upper mold 2 to avoid it, and will not hit the upper mold 2, which can ensure safety. Mold closing.

The working steps of this mold can be as follows:

The first step is to position and place the parts. First, position the lower thrust rod left bracket N on the lower profiling portion 1-1 of the lower mold 1, and align the first wing portion N-2 of the lower thrust rod left bracket N with the lower profiling portion 1-1 The left side part is fit, the middle arch part N-1 of the lower thrust rod left bracket N is fit with the middle part of the upper profiling part 2-1, and the front and rear left and right edges of the lower thrust rod left bracket N are respectively with four limit blocks. 3 approaches or contacts and is limited in four directions; the positioning pin 4 is inserted into the positioning hole N-11 of the lower thrust rod left bracket N and is positioned; at this time, the lower thrust rod left bracket N is stably mounted on the lower profiling Part 1-1 is accurately limited and positioned to ensure the N attitude, direction and position accuracy of the left bracket of the lower thrust rod;

The second step is stamping and forming. When the upper die 2 moves downward (if driven by a press), the upper die 2 will first punch the second wing portion N-3 of the lower thrust rod left bracket N until the lower profiling portion 1-1 of the upper die 2 The mold is clamped in place with the lower profiling part 1-1 to deform the second wing part N-3 in place. At the same time, the middle arch part N-1 and the first wing part N-2 of the lower thrust rod left bracket N are also The shaping is in place. At this time, the first wing portion N-2 and the second wing portion N-3 are flat with each other and the overall shape is corrected; during the molding process, the lower thrust rod left bracket N is outside the four limit blocks 3 The lower thrust rod left bracket N is accurately positioned by the positioning pin 4; therefore, the advantages of good appearance consistency and stability and high dimensional accuracy after molding can be ensured.

The third step is to open the mold and pick up the parts. The upper mold 2 moves upward to complete the mold opening; and after the mold is opened, the middle part of the left bracket N of the lower thrust rod is in an arched and protruding state, so that it can be easily taken out.

Therefore, the utility model can solve the technical problem that the existing mold cannot achieve the technical problem of keeping the second wing plate portion N-3 of the lower thrust rod left bracket N flat with the first wing plate portion N-2 after modification. At the same time, the utility model can achieve rapid and accurate placement of parts through the combined action of the limiting block 3 and the positioning pin 4. During the stamping and forming process, the workpiece maintains accurate shape, direction and position and will not loosen and The positioning can achieve the advantages of good shape consistency and stability and high dimensional accuracy after molding.

In addition, since the lower profiling portion 1-1 has equal height convex steps 1-2 along the circumferential edge, the lower profiling portion 1-1 on the lower mold 1 can be independently processed with high precision without the need for the lower mold 1 All high-precision processing can greatly reduce the processing and production of the lower mold 1, reducing the cost by about 1/3. At the same time, a mold repair margin of 2-3 mm thickness is reserved, so that the mold can be repaired when the outer surface of the lower profiling portion 1-1 is worn, while reducing the difficulty of the mold repair process and the processing cost.

Preferably, as shown in Figure 4 and Figure 11, the lower profile portion 1-1 has a first bottom slope profile segment 1-11, a first vertical profile segment 1-12, a top profile segment 1-13, a second The vertical profile section 1-14 and the second bottom bevel profile section 1-15, the first bottom bevel profile section 1-11 and the second bottom bevel profile section 1-15 are parallel to each other. Among them, the upper profiling part 2-1 also matches the lower profiling part 1-1. Since the first vertical profile segment 1-12 and the second vertical profile segment 1-14 of the lower profiling portion 1-1 are in a vertical state, it is ensured that the lower thrust rod left bracket N The first side wall surface in the central arch N-1 is vertically aligned with the first vertical surface profile segment 1-12, and the top surface and the top surface profile segment in the central arch N-1 of the lower thrust rod left bracket N 1-13 fit together; after shaping, the second vertical profile section 1-14 is vertically attached to the second side wall surface in the middle arch N-1, which ensures that the upper mold 2 can be aligned with the second side wall when the upper mold 2 moves vertically downwards. The overall extrusion effect of the wing plate N-3 can avoid the problem of partial shaping due to deviation and poor molding quality. At the same time, it is also easy to pull out when opening the mold after the body shaping is completed.

Embodiment 2: This embodiment is basically the same as Embodiment 1, except that:

In this embodiment, as shown in Figures 16-18, the lower mold 1 is fixedly installed on the lower mold base 5; the upper mold 2 is fixedly installed on the upper mold base 6.

When in use, the lower mold base 5 is fixed on the fixed plate of the press (or hydraulic press), and the upper mold base 6 is fixedly installed on the moving plate of the press (or hydraulic press). The press (or hydraulic press) drives the upper mold base 6 to move up and down, thereby enabling automatic mold opening and closing.

The preferred embodiments of the present invention are described in detail above. It should be understood that those skilled in the art can make many modifications and changes based on the concept of the present invention without creative efforts. Therefore, any technical solutions that can be obtained by those skilled in the art through logical analysis, reasoning or limited experiments on the basis of the existing technology based on the concept of the present utility model should be within the scope of protection determined by the claims. .

Claims (8)

1. The utility model provides a side plastic mould, includes lower mould (1) and last mould (2), its characterized in that:

the middle part of the lower die (1) is provided with a lower profiling part (1-1), and the lower profiling part (1-1) is matched with the outline of the lower surface of the left bracket (N) of the lower thrust rod;

a limiting block (3) and a positioning pin (4) are fixedly arranged on the lower die (1); the limiting block (3) is used for limiting the edge of the left bracket (N) of the lower thrust rod; the locating pin (4) is used for being inserted into a locating hole (N-11) of the left bracket (N) of the lower thrust rod;

the middle part of the upper die (2) is provided with an upper profiling part (2-1), and the upper profiling part (2-1) is matched with the outline of the upper surface of the left bracket (N) of the lower thrust rod; the upper die (2) is provided with a locating pin avoidance hole (2-2) and a limiting block avoidance groove (2-3).

2. A side shaping die as set forth in claim 1, wherein: the lower profiling part (1-1) is provided with a first bottom inclined surface profile section (1-11), a first vertical surface profile section (1-12), a top surface profile section (1-13), a second vertical surface profile section (1-14) and a second bottom inclined surface profile section (1-15), and the first bottom inclined surface profile section (1-11) and the second bottom inclined surface profile section (1-15) are parallel to each other;

the upper profiling part (2-1) is correspondingly matched with the lower profiling part (1-1).

3. A side shaping die as set forth in claim 1, wherein: the limiting blocks (3) are four and are used for limiting the front, the rear, the left, the right and the four side edges of the left bracket (N) of the lower thrust rod respectively.

4. A side shaping die as set forth in claim 1, wherein: the limiting block (3) is detachably fixed on the lower die (1).

5. A side shaping die as set forth in claim 1, wherein: the locating pin (4) is detachably fixed on the lower profiling part (1-1).

6. A side shaping die as set forth in claim 1, wherein: the lower profiling part (1-1) is provided with an equal-height upper boss step (1-2) along the circumferential edge.

7. A side shaping die as set forth in claim 6, wherein: the thickness of the contour upper boss step (1-2) is 2-3mm.

8. A side shaping die as set forth in claim 1, wherein: the lower die (1) is arranged on the lower die holder (5); the upper die (2) is arranged on the upper die holder (6).