Hoop rounding forming die
By designing the clamp round forming mold, the vertical force is converted into horizontal force by using the slider structure, which solves the problems of uneven round and rebound of the clamp forming, and achieves high-precision and efficient clamp forming.
Patent Information
- Application Number
- CN202422027514.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-21
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-08-21
AI Technical Summary
In sheet metal stamping processing, the clamp is not formed in a round shape and the material is prone to rebound, which affects the molding accuracy and mechanical properties, resulting in unqualified quality and waste of costs.
A clamp-covered circular forming mold is designed. Through the cooperation of the upper module slide and the lower module slide, the vertical force is converted into horizontal force, and the circular punch die is pressurized from multiple directions. The nitrogen spring and limit block structure are used to ensure molding accuracy and reduce rebound.
High-precision molding of clamps is achieved, reducing material rebound, improving molding efficiency and dimensional control, and reducing production costs.
Smart Images
Figure CN223185255U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sheet metal stamping dies, in particular to a clamp rounding forming die. Background Art
[0002] As a connecting and fixing element, clamps are widely used in the automotive, machinery, home appliance and other industries. Their quality and reliability directly affect the overall performance and service life of the product. During the sheet metal stamping process, if the pressure is insufficient, it is easy to fail to form a full circle, and the material is prone to rebound during stamping, which has a great impact on the forming accuracy, mechanical properties and appearance quality of the clamp. Poor quality of the clamp will result in huge cost waste. Summary of the Invention
[0003] In order to overcome the shortcomings of the existing technology, the utility model provides a clamp rounding forming die, which converts the vertical downward force into horizontal force through the cooperation and pressure of the upper die slider and the lower die slider, and applies pressure to the circular die from three directions to form the product.
[0004] The cam is provided with an upper mold base and a lower mold base, and the lower mold base has a plurality of upper mold bases and a plurality of lower mold bases under the upper mold base, and the upper mold base has a plurality of upper mold bases and a plurality of lower mold bases under the upper mold base.
[0005] An upper limit column is provided below the upper die base, and a lower limit column cooperating with the upper limit column is provided above the lower die base.
[0006] The lower die base is connected to the lower pad foot below, and the lower pad foot is connected to the lower supporting plate below.
[0007] Products are arranged between the circular punch and the second lower die slide block.
[0008] Guide blocks are respectively provided on both sides of the lower die slide block 1 and the lower die slide block 2.
[0009] Buffer plates are respectively provided on the inner side of the limiting block 1, the inner side of the limiting block 2, the left lower die slide block 1, the right lower die slide block 1 and the outer side of the lower die slide block 2.
[0010] The punch 1 and the punch 2 have the same structure but opposite directions.
[0011] Compared with the prior art, the utility model transmits the vertical force into horizontal force by vertical downward pressure through the contact between the sliders, which makes it easier to control the forming accuracy of the clamp and less likely to cause the material to rebound. With a simple structure, the clamp can be formed into a full circle at one time, with little rebound and easy size control. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic structural diagram of the utility model.
[0013] Figure 2 It is a partial enlarged view of the utility model.
[0014] Figure 3 This is the mold drawing of this utility model.
[0015] Figure 4 It is a top view of the utility model.
[0016] Figure 5 It is a bottom view of the utility model.
[0017] See also Figures 1 to 5 , 1 is the upper die base, 2 is the upper die lower pressure block 1, 3 is the upper die lower pressure block 2, 4 is the guide column, 5 is the guide sleeve, 6 is the lower die base, 7 is the lower pad, 8 is the lower support plate, 9 is the lower die slider 1, 9.1 is the left lower die slider 1, 9.2 is the right lower die slider 1, 10 is the lower die slider 2, 11 is the buffer plate, 12 is the product, 13 is the nitrogen spring, 14 is the circular die, 15 is the punch 1, 16 is the punch 2, 17 is the punch 3, 18 is the upper limit column, 19 is the lower limit column, 20 is the limit block 1, 21 is the limit block 2, 22 is the guide block, and 23 is the inclined surface structure. DETAILED DESCRIPTION
[0018] The present invention will be further described below with reference to the accompanying drawings.
[0019] like Figure 5 As shown, a lower die base 6 is provided below the upper die base 1, and upper die lower pressing blocks 2 are provided on the left and right sides below the upper die base 1, and guide pillars 4 are provided on both sides of the upper die lower pressing block 2, and an upper die lower pressing block 2 3 is provided between the upper die lower pressing block 2. Figure 1 、 2As shown, the lower die base 6 is provided with an upper die lower pressing block 2 and an upper die lower pressing block 2 3, the inclined surface structure 23 of the upper die lower pressing block 2 and the inclined surface structure 23 of the lower die slide 9 cooperate with each other, the inclined surface structure 23 of the upper die lower pressing block 2 3 and the inclined surface structure 23 of the lower die slide 2 10 cooperate with each other, and the lower die base 6 is provided with a guide sleeve 5 that cooperates with the guide column 4. The guide column 4 and the guide sleeve 5 are positioning components of the mold. When the mold is pressed down, the guide column 4 is first accurately positioned with the guide sleeve 5 to ensure the accuracy of the mold. The two lower die slides A limit block 20 is provided on the outside of each block 9, and a limit block 21 is provided on the outside of the lower die slider 2 10. The limit block 20 and the limit block 2 21 are fixed. During the pressing process, the lower die slider 1 9 and the lower die slider 2 10 convert the force into a horizontal force by means of the inclined surface 23, and are then translated inwardly by the reaction force of the limit block 20 and the limit block 2 21. The inner side of the left lower die slider 1 9.1 is connected to the punch 1 15, the inner side of the right lower die slider 1 9.2 is connected to the punch 2 16, and the inner side of the lower die slider 2 10 is connected to the punch 3 17. Figure 4 As shown, a plurality of nitrogen springs 13 are provided under the lower die slider 1 9 and the lower die slider 2 10 . The nitrogen springs 13 play a role of buffering and rebounding. A circular punch 14 is provided between the lower die slider 1 9 and the lower die slider 2 10 on both sides.
[0020] An upper limit column 18 is provided below the upper mold base 1, and a lower limit column 19 is provided above the lower mold base 6 to cooperate with the upper limit column 18. The upper limit column 18 and the lower limit column 19 prevent the mold from being damaged due to incorrect setting of the mold closing height, and play a protective role for the mold and the internal structure.
[0021] The lower die base 6 is connected to the lower pad 7 below, and the lower pad 7 is connected to the lower supporting plate 8 below.
[0022] A product 12 is provided between the circular punch 14 and the lower die slide 2 10 .
[0023] A guide block 22 is provided on both sides of the lower die slider 1 9 and the lower die slider 2 10 , respectively. The guide block 22 enables the lower die slider 1 9 and the lower die slider 2 10 to only move horizontally forward and backward.
[0024] Buffer plates 11 are respectively provided on the inner side of limit block 1 20, the inner side of limit block 2 21, the left lower die slider 1 9.1, the right lower die slider 1 9.2 and the outer side of lower die slider 2 10. The buffer plates 11 reduce the collision force between the pressing slider structures and reduce the wear of parts.
[0025] Punch 1 15 and punch 2 16 have the same structure but opposite directions.
[0026] During the specific implementation of this utility model, Figure 2As shown, the product 12 is placed between the circular die 14 and the second punch 16, and the upper die seat 1 is pressed down. It is first accurately positioned by the guide column 4 and the guide sleeve 5 to ensure the accuracy of the pressing die. The upper die lower pressure block 23 first contacts the lower die slider 2 10. With the help of the inclined surface 23, the downward pressure is converted into an outward horizontal force. Because the limit block 21 outside the lower die slider 2 10 is fixed, the upper die lower pressure block 23 can only push the lower die slider 2 10 inward during the process of continuing to press down. The lower die slider 2 10 drives the second punch 16 to squeeze the product 12 inward, and the product 12 surrounds the circular die 14. The shape is initially formed. At this time, the two upper die lower pressure blocks 2 are in contact with the two lower die slide blocks 9, which are pushed in the same way as the upper die lower pressure block 23 and the lower die slide block 2 10. The limit block 20 located on the outside of the upper die lower pressure block 2 is fixed. The upper die lower pressure block 2 can only push the lower die slide block 9 inward during the process of continuing to press down. The left lower die slide block 9.1 and the right lower die slide block 9.2 push the punch 15 and the punch 2 16 inward respectively. The punch 15 and the punch 2 16 further squeeze the product 9, and the nitrogen spring 13 under the lower die slide block 9 and the lower die slide block 2 10 is tightened. Figure 3 As shown, both ends of the product 9 further surround the circular die 14 and fit with the circular die 14, completing the one-time full-circle forming of the product 12, the upper die base 1 rises, the nitrogen spring 13 rebounds, the lower die slider 9 and the lower die slider 10 return to their original positions, and the product 12 is added again and the process is repeated to repeat the forming.
Claims
1. A clamp rounding forming die, comprising an upper die base and a lower die base, characterized in that: A lower die seat (6) is provided below the upper die seat (1), an upper die lower pressure block (2) is provided on the left and right sides below the upper die seat (1), a guide column (4) is provided on both sides of the upper die lower pressure block (2), an upper die lower pressure block (3) is provided between the upper die lower pressure block (2), an upper die lower pressure block (2) and an upper die lower pressure block (3) are provided on the lower die seat (6), the inclined surface structure (23) of the upper die lower pressure block (2) and the inclined surface structure (23) of the lower die slider (9) cooperate with each other, the inclined surface structure (23) of the upper die lower pressure block (3) and the inclined surface structure (23) of the lower die slider (10) cooperate with each other, A guide sleeve (5) cooperating with the guide column (4) is provided on the lower die base (6), a limit block (20) is provided on the outer side of each of the two lower die sliders (9), a limit block (21) is provided on the outer side of the lower die slider (10), the inner side of the left lower die slider (9.1) is connected to the punch (15), the inner side of the right lower die slider (9.2) is connected to the punch (16), the inner side of the lower die slider (10) is connected to the punch (3) (17), a plurality of nitrogen springs (13) are provided below the lower die slider (9) and the lower die slider (10), and a circular die (14) is provided between the lower die slider (9) and the lower die slider (10) on both sides.
2. The clamp rounding forming die according to claim 1, characterized in that: An upper limit column (18) is provided below the upper die base (1), and a lower limit column (19) cooperating with the upper limit column (18) is provided above the lower die base (6).
3. The clamp rounding forming die according to claim 1, characterized in that: The lower die base (6) is connected to the lower pad (7) below, and the lower pad (7) is connected to the lower support plate (8) below.
4. The clamp rounding forming die according to claim 1, characterized in that: A product (12) is provided between the circular punch (14) and the second lower die slide (10).
5. The clamp rounding forming die according to claim 1, characterized in that: Guide blocks (22) are respectively provided on both sides of the lower die slide block 1 (9) and the lower die slide block 2 (10).
6. The clamp rounding forming die according to claim 1, characterized in that: Buffer plates (11) are respectively provided on the inner side of the limit block 1 (20), the inner side of the limit block 2 (21), the left lower mold slide block 1 (9.1), the right lower mold slide block 1 (9.2) and the outer side of the lower mold slide block 2 (10).
7. The clamp rounding forming die according to claim 1, characterized in that: The punch 1 (15) and the punch 2 (16) have the same structure but opposite directions.