A one-shot snap-on mold

Abstract

The utility model provides a one -off forming buckle mould, including upper die, lower die, be equipped with punch one, punch two, pressure material piece on the upper die, punch one, punch two are opposite and set up, and punch one and punch two constitute a one -off forming buckle mould, the pressure material piece is inserted in the sliding slot one and is connected with the sliding slot one sliding, be equipped with punch three on the lower die, punch three is connected with the upper die through drive connecting mechanism, still be equipped with the floating forming block between the upper die and the lower die, the forming block is located pressure material piece just below, and supports the workpiece raw material between the upper die and the lower die, workpiece raw material moves along the upper die and the lower die through the feeding mechanism. Three punches in the utility model all drive through the upper die, simple structure, has saved the equipment cost, and can realize the forming of U type workpiece once, has greatly shortened the production time, can realize mass production in short time, has improved production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts manufacturing technology, and in particular to a one-time molding fastening mold. Background Technology

[0002] Automobiles are assembled from many parts. Among them, a thin U-shaped structural component is generally formed by punching and bending. However, the existing U-shaped structural component bending process requires multiple bending steps, which is inefficient. Each bending step uses a different drive, increasing equipment costs. Furthermore, there are response time pauses between each bending step, resulting in a long bending process and further reducing production efficiency. Utility Model Content

[0003] The present invention aims to provide a one-piece molding fastening mold to overcome the shortcomings of the prior art.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a one-time forming snap-fit ​​mold, including an upper mold and a lower mold. The upper mold is provided with a punch one, a punch two, and a pressure block. The punch one and punch two are arranged opposite to each other, and the inner surfaces of the punch one and punch two are arranged opposite to each other to form a sliding groove one. The pressure block is inserted into the sliding groove one and is slidably connected to the sliding groove one. The lower mold is provided with a punch three, and the punch three is connected to the upper mold through a drive connection mechanism. A floating forming block is also provided between the upper mold and the lower mold. The forming block is located directly below the pressure block and supports the workpiece material located between the upper mold and the lower mold. The workpiece material moves between the upper mold and the lower mold through a feeding mechanism.

[0005] Furthermore, in the aforementioned one-piece forming snap-fit ​​mold, punch one and punch two are elastically connected to the upper mold via nitrogen spring one, and the pressure block is elastically connected to the upper mold via nitrogen spring two.

[0006] Furthermore, in the aforementioned one-piece molding fastening mold, the initial spring force of the nitrogen spring is less than the initial spring force of the nitrogen spring.

[0007] Furthermore, in the aforementioned one-time forming snap-fit ​​mold, punch one and punch two are symmetrically arranged on both sides of the pressure block, and each of punch one and punch two has a groove on the inner side of its lower end. When the upper mold is pressed down, the two grooves form a U-shaped forming space.

[0008] Furthermore, the aforementioned one-time forming snap-fit ​​mold has a driving connection mechanism including a insert, a driving block, and a support block. The insert is fixed on the upper mold, the driving block is located on the lower mold, the lower end of the insert has a wedge-shaped structure one that cooperates with the driving block, one side of the punch abuts against the support block, and the lower end of the other side has a wedge-shaped structure two that cooperates with the driving block. The support block is located on the lower mold, and the upper end of the punch has a forming groove for bending and forming. Through the wedge-shaped structure one and the wedge-shaped structure two, the punch can move upward along the support block.

[0009] Furthermore, in the aforementioned one-time forming snap-fit ​​mold, the wedge structure one includes a first inclined surface located at the lower end of the insert and a second inclined surface located on one side of the drive block, the first inclined surface and the second inclined surface cooperating with each other; the wedge structure two includes a third inclined surface located opposite to the second inclined surface and a fourth inclined surface located at the lower end of the punch, the third inclined surface and the fourth inclined surface cooperating with each other.

[0010] Furthermore, in the aforementioned one-piece molding fastening mold, the lower mold is provided with a second sliding groove, and the driving block is disposed in the second sliding groove and slidably connected to the second sliding groove.

[0011] Furthermore, in the aforementioned one-piece forming snap-fit ​​mold, the drive block is also provided with a return spring and a return rod. One end of the return rod is connected to the return spring, and the other end extends out of the drive block and abuts against one side of the slide groove. The punch is also elastically connected to the lower mold through a torsion spring.

[0012] Furthermore, in the aforementioned one-time forming snap-fit ​​mold, the forming block is an inverted L-shape, including a floating part and a forming part. The forming part is arranged along the feeding direction of the workpiece and is adapted to the internal space of the workpiece. The floating part is arranged perpendicular to the forming part and is elastically connected to the lower mold.

[0013] Furthermore, in the aforementioned one-time forming snap-fit ​​mold, the lower mold is provided with a slide block, the slide block is provided with a slide groove three, the floating part is inserted into the slide groove three, and is elastically connected to the lower mold through a spring provided at the lower end of the slide groove three.

[0014] Compared with the prior art, the beneficial effects of this utility model are: all three punches in this utility model are driven by the upper die, which makes the structure simpler and saves equipment costs. All bending processes are completed sequentially during the lowering and closing of the upper die, realizing the forming of U-shaped workpieces in one go without any response interruption, greatly shortening the production time, enabling mass production in a short time, and improving production efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the opening state structure of the snap-fit ​​mold of this utility model, which is formed in one step. Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the closed-mold structure of the snap-fit ​​mold of this utility model. Figure 1 ;

[0018] Figure 3 This is a schematic diagram of the opening state structure of the snap-fit ​​mold of this utility model, which is formed in one step. Figure 2 ;

[0019] Figure 4 This is a schematic diagram of the closed-mold structure of the snap-fit ​​mold of this utility model. Figure 2 ;

[0020] Figure 5 This is a schematic diagram of the workpiece of this utility model;

[0021] In the diagram: 1. Upper mold; 2. Lower mold; 21. Slide 2; 3. Punch 1; 4. Punch 2; 5. Pressure block; 6. Punch 3; 61. Forming groove; 7. Forming block; 71. Floating part; 72. Forming part; 8. Nitrogen spring 1; 9. Nitrogen spring 2; 10. Insert knife; 11. Drive block; 12. Support block; 13. Return spring; 14. Return rod; 15. Slide; 16. Spring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1

[0024] like Figure 1-5As shown, a one-time forming snap-fit ​​mold includes an upper mold 1 and a lower mold 2. The upper mold 1 is provided with a punch 3, a punch 4, and a pressure block 5. The punch 3 and punch 4 are arranged opposite to each other, and the inner surfaces of the punch 3 and punch 4 are arranged opposite to each other to form a sliding groove. The pressure block 5 is inserted into the sliding groove and is slidably connected to the sliding groove. The lower mold 2 is provided with a punch 6, which is connected to the upper mold 1 through a drive connection mechanism. A floating forming block 7 is also provided between the upper mold 1 and the lower mold 2. The forming block 7 is located directly below the pressure block 5 and supports the workpiece material located between the upper mold 1 and the lower mold 2. The workpiece material moves between the upper mold 1 and the lower mold 2 through a feeding mechanism (not shown in the figure).

[0025] like Figure 1 , 2 As shown, punch 3 and punch 4 are both elastically connected to the upper die 1 via nitrogen spring 8; the pressure block 5 is elastically connected to the upper die 1 via nitrogen spring 9, and the initial spring force of nitrogen spring 9 is less than that of nitrogen spring 8, allowing the pressure block to contact the workpiece material first. The use of nitrogen springs reduces vibration generated when the upper die presses down, improving the workpiece forming quality.

[0026] like Figure 1 , 2 As shown, punch 3 and punch 4 are symmetrically arranged on both sides of the pressure block 5, and each punch 3 and punch 4 has a groove on the inner side of its lower end. When the upper die 1 is pressed down, the two grooves form a U-shaped forming space.

[0027] like Figure 3 , 4 As shown, the forming block 7 is an inverted L-shape, including a floating part 71 and a forming part 72. The forming part 72 is arranged along the feeding direction of the workpiece and is adapted to the internal space of the workpiece. The forming part and the forming space mentioned above can quickly form the bending on both sides of the workpiece. The floating part 71 is arranged perpendicularly to the forming part 72. The lower mold 2 is provided with a slide 15, and the slide 15 is provided with a slide groove 3. The floating part 71 is inserted into the slide groove 3 and is elastically connected to the lower mold 2 through a spring 16 provided at the lower end of the slide groove 3. The forming block is set to float, which can ensure that the feeding height of the forming block and the workpiece is always consistent, reduce positioning, and improve production efficiency.

[0028] Example 2

[0029] Based on the structure of Example 1, such as Figure 1 , 2As shown, the driven connecting mechanism includes a insert 10, a drive block 11, and a stop block 12. The insert 10 is fixed on the upper die 1, and the drive block 11 is located on the lower die 2. The lower end of the insert 10 has a wedge-shaped structure 1 that cooperates with the drive block 11. One side of the punch 6 abuts against the stop block 12, and the lower end of the other side has a wedge-shaped structure 2 that cooperates with the drive block 11. The stop block 12 is located on the lower die 2, and the upper end of the punch 6 has a forming groove 61 for bending. Through the wedge-shaped structure 1 and the wedge-shaped structure 2, the punch 6 can move upward along the stop block 12, thereby bending upward to fasten the two sides of the U-shaped workpiece. The stop block 12 serves to guide the punch 6, making the bending action of the punch 6 more stable and improving the forming quality. In addition, there is also a stop block on the lower die, which cooperates with the insert to guide the movement of the insert.

[0030] Specifically, the wedge structure one includes a first inclined surface located at the lower end of the inserter 10 and a second inclined surface located on one side of the drive block 11, the first inclined surface and the second inclined surface cooperate with each other; the wedge structure two includes a third inclined surface located opposite to the second inclined surface and a fourth inclined surface located at the lower end of the punch 6, the third inclined surface is located on the drive block 11 and cooperates with the fourth inclined surface.

[0031] like Figure 1 , 2 As shown, the lower mold 2 is provided with a second slide groove 21, and the driving block 11 is disposed in the second slide groove 21 and slidably connected to the second slide groove 21. The driving block 11 moves in the second slide groove 21 through the wedge mechanism.

[0032] In addition, the drive block 11 is also equipped with a return spring 13 and a return rod 14. One end of the return rod 13 is connected to the return spring 14, and the other end extends out of the drive block 11 and abuts against one side of the slide groove 21. The punch 6 is also elastically connected to the lower die 2 through a torsion spring (not shown in the figure). After bending and forming is completed, the drive block is reset under the action of the return spring 13, and the punch 6 is also moved down and reset under the action of the torsion spring.

[0033] The working principle of this utility model is as follows: When the upper die 1 presses down, the pressure block 5 presses down first to press the workpiece material against the top surface of the forming block 7; the upper die 1 continues to press down, the pressure block 5 moves up, and the punches 1 3 and 2 4 simultaneously bend the two sides of the workpiece downwards; the upper die 1 continues to press down, and the punch 3 6 is connected to the upper die 1 through the drive connection mechanism, and under the drive of the drive connection mechanism, the punch 3 6 bends the fastening plate of the workpiece upwards, fastening the two sides of the U-shaped workpiece, thus completing the bending and forming of the workpiece.

[0034] In summary, in this utility model, all three punches are driven by the upper die, resulting in a simpler structure, reduced equipment costs, and the completion of all bending processes sequentially during the lowering and closing of the upper die, achieving the forming of the U-shaped workpiece in one go without any response interruption. This greatly shortens the production time, enabling mass production in a short period of time and improving production efficiency.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0036] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A one-shot snap-on mold characterized by: The device includes an upper die and a lower die. The upper die is equipped with a punch, a punch, and a pressure block. Punches 1 and 2 are arranged opposite each other, and their inner surfaces form a groove. The pressure block is inserted into the groove and slidably connected to it. The lower die is equipped with a punch 3, which is connected to the upper die via a drive connection mechanism. A floating forming block is also provided between the upper and lower dies. The forming block is located directly below the pressure block and supports the workpiece material located between the upper and lower dies. The workpiece material moves between the upper and lower dies via a feeding mechanism.

2. The one-shot snap-action mold of claim 1, wherein: Punch 1 and Punch 2 are both elastically connected to the upper die via nitrogen spring 1, and the pressure block is elastically connected to the upper die via nitrogen spring 2.

3. The one-shot snap-action mold of claim 2, wherein: The initial spring force of the nitrogen spring is less than the initial spring force of the nitrogen spring.

4. The single stage snap mold of claim 1, wherein: Punch 1 and Punch 2 are symmetrically arranged on both sides of the pressure block, and each of the lower inner sides of Punch 1 and Punch 2 is provided with a groove. When the upper die presses down, the two grooves form a U-shaped forming space.

5. The single stage snap mold of claim 1, wherein: The driven connection mechanism includes a plunger, a drive block, and a stop block. The plunger is fixed on the upper die, and the drive block is located on the lower die. The lower end of the plunger has a wedge-shaped structure 1 that cooperates with the drive block. One side of the punch abuts against the stop block, and the lower end of the other side has a wedge-shaped structure 2 that cooperates with the drive block. The stop block is located on the lower die, and the upper end of the punch has a forming groove for bending and forming. The punch can move upward along the stop block through the wedge-shaped structure 1 and the wedge-shaped structure 2.

6. The single stage snap mold of claim 5, wherein: The first wedge structure includes a first inclined surface located at the lower end of the insert blade and a second inclined surface located on one side of the drive block, the first inclined surface and the second inclined surface cooperating with each other; the second wedge structure includes a third inclined surface located opposite to the second inclined surface and a fourth inclined surface located at the lower end of the third punch, the third inclined surface and the fourth inclined surface cooperating with each other.

7. The one-shot snap-action mold of claim 5, wherein: The lower mold is provided with a second sliding groove, and the driving block is disposed in the second sliding groove and slidably connected to the second sliding groove.

8. The single stage snap mold of claim 7, wherein: The drive block is also equipped with a reset spring and a reset rod. One end of the reset rod is connected to the reset spring, and the other end extends out of the drive block and abuts against one side of the slide groove. The punch is also elastically connected to the lower die through a torsion spring.

9. The single stage snap mold of claim 1 or 4, wherein: The forming block is an inverted L-shape, including a floating part and a forming part. The forming part is arranged along the feeding direction of the workpiece and is adapted to the internal space of the workpiece. The floating part is arranged perpendicular to the forming part and is elastically connected to the lower mold.

10. The single stage snap mold of claim 9, wherein: The lower mold is provided with a slide block, and the slide block is provided with a three-slide groove. The floating part is inserted into the three-slide groove and is elastically connected to the lower mold through a spring located at the lower end of the three-slide groove.

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