Novel double-acting non-standard wedge mechanism
By using a new type of double-action non-standard wedge mechanism, which combines the upper insert block and the wedge with a spring and a guide device, the problem of insufficient stability and speed of existing molds in the production of small parts is solved, thus realizing automated production and cost reduction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI HUAGUANG CAR PARTS CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-05-26
AI Technical Summary
In the existing technology, it is difficult to achieve the high-speed stamping requirements in terms of production stability and speed when producing small parts in the automotive manufacturing field, which leads to increased stamping costs.
A new type of double-action non-standard wedge mechanism is adopted. The upper die base drives the upper insert block to insert between the outer wedge and the inner wedge. The spring system is used to make the outer wedge and the inner wedge move in opposite directions to achieve stamping and demolding. Combined with the guiding device and positioning mechanism, the movement stability and accuracy are ensured.
It has achieved automated production, improved production efficiency, reduced the number of molds, lowered stamping costs, and ensured stable equipment operation by promptly detecting wear through the touch bar and bell system.
Smart Images

Figure CN224272980U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold technology, and more specifically to a novel double-action non-standard inclined wedge mechanism. Background Technology
[0002] In modern manufacturing, stamping plays a crucial role. Stamped parts are widely used in automobile manufacturing, electronic equipment, home appliances, aerospace, and numerous mechanical equipment sectors. With the advancement of global industrialization, the demand for stamped parts across various industries is showing a continuous growth and diversification trend.
[0003] In the automotive manufacturing industry, stamped parts constitute the main body of the vehicle body structure and many components. From exterior coverings such as doors and hoods to internal support structures, their quality and precision directly affect the safety, aerodynamic performance, and overall appearance quality of the vehicle.
[0004] In recent years, with increasingly fierce competition in the automotive market, major automakers have placed extremely high demands on stamping production efficiency and faced very high labor costs. They all hope to reduce stamping costs by improving the stability of molds. However, for some relatively small parts, the stability and speed of production using typical automotive mold structures are difficult to achieve at high-speed stamping, thus increasing stamping costs. Utility Model Content
[0005] To overcome the aforementioned deficiencies of the prior art, this utility model provides a novel double-action non-standard wedge mechanism. The upper die base drives the upper insert block to insert between the outer and inner wedges, pressing them to move in opposite directions to the left and right, thus completing the stamping of the workpiece. Subsequently, the first and second springs drive the outer and inner wedges to reset, completing the demolding of the inner-clamping process. This cleverly utilizes angle conversion to transform vertical forming into horizontal forming, ensuring the product maintains the same angle during stamping, enabling automated production on an automatic line, improving production efficiency, effectively reducing the number of molds and lowering stamping costs, thereby solving the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a novel double-action non-standard wedge mechanism, including an upper die base and a lower die base disposed at the bottom of the upper die base, wherein a processing part for stamping workpieces is provided between the upper die base and the lower die base;
[0007] The processed part includes an upper insert block installed at the bottom of the upper mold base. The bottom of the upper insert block is provided with an outer inclined wedge and an inner inclined wedge provided at the top of the outer inclined wedge. The bottom end of the upper insert block is inclined on one side corresponding to the outer inclined wedge and the inner inclined wedge, and the outer inclined wedge and the inner inclined wedge are inclined on one side corresponding to the upper insert block.
[0008] The inner wedge, located away from the upper insert block and close to the outer wedge, is provided with a stamping surface for processing the workpiece.
[0009] In a preferred embodiment, the top of the lower mold base is provided with a groove and a slide, the slide is located at the top of the groove, and the outer inclined wedge is located inside the slide. The groove is provided with a guide plate for supporting the outer inclined wedge. The guide plate guides the outer inclined wedge to ensure the stability of the outer inclined wedge's displacement and to prevent the outer inclined wedge from becoming skewed during the displacement process.
[0010] In a preferred embodiment, a stop block is installed on the top of the lower mold base. The stop block is located on the side of the outer wedge away from the inner wedge, and a first spring is installed between the stop block and the outer wedge. The outer wedge is reset by the elasticity of the first spring.
[0011] In a preferred embodiment, a second spring is installed on the side of the inner wedge away from the upper insert block, and the end of the second spring away from the inner wedge is fixed together with the outer wedge, so that the inner wedge is reset by the elasticity of the second spring.
[0012] In a preferred embodiment, a bell is installed on the side of the stop block near the outer wedge, and a contact rod is provided on the side of the bell away from the stop block. The contact rod is installed on the side of the outer wedge near the bell. Through the contact rod contacting the bell, the bell rings to promptly notify the staff that the outer wedge has moved to the corresponding position.
[0013] In a preferred embodiment, positioning rods are installed at the bottom of both ends of the upper mold base, and positioning tubes are sleeved on the outside of the positioning rods. The bottom end of the positioning tube is fixed together with the top of the lower mold base. The stability of the upper mold base when it moves down can be ensured by the nesting and locking of the positioning rods and positioning tubes.
[0014] The technical effects and advantages of this utility model are as follows:
[0015] 1. The upper die holder drives the upper insert block to insert between the outer and inner inclined wedges, and presses the outer and inner inclined wedges to move in opposite directions to the left and right to complete the stamping of the workpiece. Then, the first and second springs drive the outer and inner inclined wedges to reset, completing the demolding of the inner buckle forming. In this way, the angle conversion can be cleverly used to convert the vertical forming process into the horizontal forming process, so that the product maintains the same angle during the stamping process, realizes the automated production line, improves production efficiency, and effectively reduces the number of molds and reduces stamping costs.
[0016] 2. By connecting the contact rod with the outer wedge, the contact rod can move outward together with the outer wedge. The ringing of the bell by the contact rod indicates that the outer wedge has moved to the corresponding position. When the contact rod is not in contact with the bell, the clearance between the upper insert block and the outer wedge increases due to wear, causing the outer wedge to not move accurately to the corresponding position. This allows the staff to be notified in time for inspection and maintenance. Attached Figure Description
[0017] Figure 1 This is a sectional view of the upper mold base of this utility model;
[0018] Figure 2 For the present utility model Figure 1 Enlarged view of section A in the middle;
[0019] Figure 3 This is a cross-sectional view of the outer oblique wedge of this utility model;
[0020] Figure 4 This is a sectional view of the lower mold base of this utility model;
[0021] Figure 5 This is the front view of the positioning rod of this utility model.
[0022] The attached diagram is labeled as follows: 1. Upper mold base; 2. Lower mold base; 3. Upper insert block; 4. Outer inclined wedge; 5. Inner inclined wedge; 6. Stamping surface; 7. Groove; 8. Slide groove; 9. Guide slide plate; 10. Stop block; 11. First spring; 12. Second spring; 13. Bell; 14. Contact rod; 15. Positioning rod; 16. Positioning tube. Detailed Implementation
[0023] 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.
[0024] Refer to the instruction manual appendix Figure 1-5 This utility model provides a novel double-action non-standard wedge mechanism, including an upper die base 1 and a lower die base 2 located at the bottom of the upper die base 1. A processing component for stamping workpieces is provided between the upper die base 1 and the lower die base 2. The processing component includes an upper insert block 3 installed at the bottom of the upper die base 1. An outer wedge 4 and an inner wedge 5 are provided at the bottom of the upper insert block 3. The bottom end of the upper insert block 3 is inclined on one side corresponding to the outer wedge 4 and the inner wedge 5, and the outer wedge 4 and the inner wedge 5 are also inclined on one side corresponding to the upper insert block 3. The inner wedge 5 is provided with a stamping surface 6 for processing workpieces on the side away from the upper insert block 3 and close to the outer wedge 4.
[0025] When stamping a workpiece using the above-mentioned processing parts, the operator places the workpiece between the inner wedge 5 and the outer wedge 4, and then the upper die base 1 is driven to move downward by the punching equipment. The upper die base 1 drives the upper insert block 3 to insert between the outer wedge 4 and the inner wedge 5. Under the action of the two opposite inclined surfaces of the upper insert block 3, the outer wedge 4 and the inner wedge 5 move in two opposite directions to the left and right, thereby completing the forming of the inner buckle shape on the stamped part.
[0026] Furthermore, since a stop block 10 is installed on the top of the lower die base 2, the stop block 10 is located on the side of the outer inclined wedge 4 away from the inner inclined wedge 5, and a first spring 11 is installed between the stop block 10 and the outer inclined wedge 4, and a second spring 12 is installed on the bottom end of the inner inclined wedge 5 away from the upper insert block 3, and the end of the second spring 12 away from the inner inclined wedge 5 is fixed together with the outer inclined wedge 4, when the punching machine drives the upper insert block 3 to move upward, the outer inclined wedge 4 will move to the right under the action of the first spring 11, and the inner inclined wedge 5 will move to the left under the action of the second spring 12, thereby completing the demolding of the inner buckling forming, so that the workpiece can float in the vertical direction to carry out the next feeding action, and the punching machine reaches the top dead center and one working stroke ends.
[0027] like Figure 1 and 4 As shown, the lower mold base 2 has a connected groove 7 and a sliding groove 8 on its top. The sliding groove 8 is located on the top of the groove 7, and the outer inclined wedge 4 is located inside the sliding groove 8. The groove 7 has a guide plate 9 for supporting the outer inclined wedge 4. The guide plate 9 can guide and move the outer inclined wedge 4, thereby ensuring the stability of the movement of the outer inclined wedge 4 and preventing the outer inclined wedge 4 from tilting during movement.
[0028] For example Figure 1 and 2 As shown, to ensure the stamping accuracy of the workpiece, it is necessary to detect whether the outer wedge 4 has moved to the corresponding position. Therefore, a bell 13 is installed on the side of the top of the stop block 10 near the outer wedge 4, and a contact rod 14 is provided on the side of the bell 13 away from the stop block 10. The contact rod 14 is installed on the side of the outer wedge 4 near the bell 13. When the outer wedge 4 is pushed outward by the upper insert block 3, the outer wedge 4 moves outward together with the contact rod 14, and the contact rod 14 contacts the bell 13 to sound an alarm, thereby informing the staff that the outer wedge 4 has moved to the corresponding position. When the contact rod 14 does not contact the bell 13, the fit clearance between the upper insert block 3 and the outer wedge 4 increases due to wear, causing the outer wedge 4 to not move accurately to the corresponding position, thus enabling the staff to be notified in time for inspection and maintenance.
[0029] At the same time, such as Figure 1 and 5As shown, to ensure the machining accuracy of the workpiece, it is necessary to ensure that the upper insert block 3 and the outer inclined wedge 4 are precisely engaged. Therefore, positioning rods 15 are installed at the bottom of both ends of the upper mold base 1, and positioning tubes 16 are sleeved on the outside of the positioning rods 15. The bottom end of the positioning tube 16 is fixed to the top of the lower mold base 2. By engaging the positioning rods 15 and the positioning tubes 16, the downward movement stability of the upper mold base 1 can be guaranteed, and the upper mold base 1 can be prevented from tilting during the movement process, thereby ensuring the precise engagement of the upper insert block 3 and the outer inclined wedge 4.
[0030] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A novel double-acting non-standard wedge mechanism, comprising an upper mold base (1) and a lower mold base (2) disposed at the bottom of the upper mold base (1), characterized in that: A processing part for stamping workpieces is provided between the upper die base (1) and the lower die base (2); The processed part includes an upper insert block (3) installed at the bottom of the upper mold base (1). The bottom of the upper insert block (3) is provided with an outer inclined wedge (4) and an inner inclined wedge (5) provided at the top of the outer inclined wedge (4). The bottom end of the upper insert block (3) is inclined on one side corresponding to the outer inclined wedge (4) and the inner inclined wedge (5). The outer inclined wedge (4) and the inner inclined wedge (5) are inclined on one side corresponding to the upper insert block (3). The inner wedge (5) is provided with a stamping surface (6) for processing workpieces on the side away from the upper insert block (3) and close to the outer wedge (4).
2. The novel double-acting non-standard wedge mechanism according to claim 1, characterized in that: The lower mold base (2) has a groove (7) and a slide (8) connected to each other on the top. The slide (8) is located on the top of the groove (7), and the outer wedge (4) is located inside the slide (8). The groove (7) has a guide plate (9) for supporting the outer wedge (4).
3. The novel double-action non-standard wedge mechanism according to claim 1, characterized in that: A stop block (10) is installed on the top of the lower mold base (2). The stop block (10) is located on the side of the outer inclined wedge (4) away from the inner inclined wedge (5), and a first spring (11) is installed between the stop block (10) and the outer inclined wedge (4).
4. The novel double-acting non-standard wedge mechanism according to claim 1, characterized in that: A second spring (12) is installed on the side of the bottom of the inner wedge (5) away from the upper insert block (3), and the end of the second spring (12) away from the inner wedge (5) is fixed together with the outer wedge (4).
5. The novel double-acting non-standard wedge mechanism according to claim 3, characterized in that: A bell (13) is installed on the top of the stop (10) near the outer wedge (4), and a touch rod (14) is provided on the side of the bell (13) away from the stop (10). The touch rod (14) is installed on the side of the outer wedge (4) near the bell (13).
6. The novel double-acting non-standard wedge mechanism according to claim 1, characterized in that: The upper mold base (1) is equipped with positioning rods (15) at both ends of the bottom, and positioning tubes (16) are sleeved on the outside of the positioning rods (15). The bottom end of the positioning tubes (16) is fixed together with the top of the lower mold base (2).