Adjustable gap left and right front closing plate stamping die
By designing a left and right front sealing plate stamping die with adjustable clearance, the problems of low production efficiency and unstable quality caused by fixed clearance in traditional dies were solved, and the flexible adjustment of the die clearance and the extension of die life were realized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU RUIJIN EQUIP TECH CO LTD
- Filing Date
- 2025-07-07
- Publication Date
- 2026-06-23
AI Technical Summary
The fixed gap of traditional left and right front sealing plate stamping dies makes it difficult to adapt to the needs of different product specifications, resulting in low production efficiency, high costs and unstable product quality.
Design an adjustable gap left and right front sealing plate stamping die. The die gap can be flexibly adjusted by means of long bolts, jacking slide plate and scale. The design of guide rod and copper sleeve is combined to reduce wear. The lifting mechanism is adopted to facilitate die replacement.
It enables flexible adjustment of the die clearance, improves production efficiency, reduces scrap rate and die wear, and enhances stamping quality and die life.
Smart Images
Figure CN224389773U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stamping die technology, specifically to a left and right front sealing plate stamping die with adjustable clearance. Background Technology
[0002] In the automotive, home appliance, and other manufacturing industries, the left and right front end panels are crucial components. The quality of their processing and manufacturing, as well as production efficiency, significantly impacts the overall product quality and production cycle. Traditional stamping dies for left and right front end panels have several limitations. Firstly, the dimensions, thickness, and materials of the left and right front end panels vary depending on the size and model of the product. Traditional dies typically have fixed gaps, making it difficult to adapt to the stamping requirements of different specifications. This often necessitates changing the overall die height when producing different models of end panels, increasing manufacturing and storage costs and reducing production efficiency. Secondly, with fixed gaps, it's difficult to precisely adjust the die gaps according to the actual material conditions during stamping. Excessive gaps result in large burrs on the edges of the stamped parts, compromising dimensional accuracy and affecting product quality. Conversely, insufficient gaps accelerate die wear, shortening die lifespan and potentially causing sheet metal breakage during stamping, increasing production costs and risks.
[0003] To address the aforementioned issues, developing an adjustable gap stamping die for the left and right front sealing plates is of significant practical importance. Summary of the Invention
[0004] The purpose of this invention is to provide an adjustable gap left and right front sealing plate stamping die to solve the problem mentioned in the background art that the gap between stamping dies cannot be adjusted.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable gap left and right front sealing plate stamping die, including a base, the base being fixedly installed on the outer surface of a stamping machine, and a guide rod being threadedly installed on the outer surface of the base. A top plate is slidably installed at one end of the guide rod, and an auxiliary spring is provided between the top plate and the base. A connecting rod is fixedly installed on the outer surface of the top plate, and a push-up slide plate is slidably installed on both sides of the outer surface of the connecting rod, and the push-up slide plate engages with the connecting rod. A machine-type stamping head is slidably installed on the outer surface of the connecting rod, and the machine-type stamping head is connected to the stamping machine. Grooves are formed on both sides of the outer surface of the machine-type stamping head, and the grooves of the machine-type stamping head engage with the outer surface of the push-up slide plate. A long bolt is threadedly installed on the outer surface of the connecting rod, and an oblique groove is formed on the outer surface of the push-up slide plate, and the outer surface of the oblique groove is in contact with the outer surface of the long bolt.
[0006] Preferably, a scale is provided on one side of the outer surface of the connecting rod, and the outer surface of the connecting rod is in contact with the outer surface of the machine tool's punching head.
[0007] By adopting the above technical solution, the distance the connecting rod enters or exits the machine tool's punch head can be clearly determined by the scale set on the outer surface of the connecting rod, so that the distance moved can be clearly determined when adjusting the gap between the upper and lower punch dies.
[0008] Preferably, a copper sleeve is installed through the outer surface of the top plate, and the copper sleeve engages with the top plate. The guide rod and the copper sleeve are concentrically designed, and the copper sleeve and the guide rod are slidably connected.
[0009] By adopting the above technical solution, when the copper sleeve or guide rod is worn, the guide rod and copper sleeve can be easily removed for convenient replacement, reducing the difference between the upper and lower stamping dies during stamping and reducing the probability of parts being damaged after stamping.
[0010] Preferably, a lower stamping die is fixedly installed on the outer surface of the base, and an upper stamping die is fixedly installed on the outer surface of the top plate. The upper stamping die and the lower stamping die are designed to be coaxial, and the lower stamping die and the upper stamping die are inserted into each other. A lifting mechanism is provided between the lower stamping die and the base.
[0011] By adopting the above technical solution, the upper stamping die can be easily fixed to the top plate, and the lower stamping die can be fixed to the base, so that the entire die does not need to be replaced when replacing the upper and lower stamping dies, which can improve the speed of replacement.
[0012] Preferably, the lifting mechanism includes: a connecting plate, which is slidably disposed inside the base, and lifting springs are evenly disposed between the base and the connecting plate, and a push rod is threadedly installed on the outer surface of the lifting spring, the push rod penetrates the outer surface of the lower stamping die, and the lower stamping die and the push rod are slidably connected, and a downward pressing extension rod is fixedly installed on both outer surfaces of the connecting plate, and the downward pressing extension rod penetrates the outer surface of the base, and the outer surface of the downward pressing extension rod does not fit against the outer surface of the lower stamping die.
[0013] Using the above technical solution, after the upper and lower stamping dies have finished stamping the material plate, the lifting spring will lift the connecting plate, allowing the ejector rod to eject the parts inside the lower stamping die, thus improving the convenience and speed of removing the parts after the stamping is completed.
[0014] Preferably, the outer surface of the connecting plate is uniformly provided with threaded holes, and a groove is provided between the connecting plate and the base, wherein the groove of the base exposes the threaded holes of the connecting plate.
[0015] Using the above technical solution, the ejector rod can be installed into the threaded hole of the connecting plate according to the different lifting hole positions of the lower stamping die.
[0016] Preferably, the top plate has adjusting screws threaded on both ends of its outer surface, and a rubber block is provided at the end of the adjusting screw near the base. The adjusting screw has a nut on its outer surface, and the nut of the adjusting screw is in contact with the outer surface of the top plate. The adjusting screw and the downward extension rod are concentrically designed, and the outer surface of the downward extension rod is in contact with the outer surface of the adjusting screw.
[0017] By adopting the above technical solution, the position of the adjusting screw on the top plate can be adjusted according to the distance between the upper and lower stamping dies. After the distance between the upper and lower stamping dies is adjusted, the ejector pin will not be unable to be ejected from the lower stamping die properly due to the distance between the base and the top plate being too close or too far, or it will be damaged due to excessive ejection.
[0018] Compared with the prior art, the beneficial effects of this utility model are: the adjustable gap left and right front sealing plate stamping die:
[0019] 1. By controlling the screwing in and out of the long bolt, the ejector slide can slide inside the connecting rod, allowing control over the engagement and disengagement of the ejector slide with the machine tool's punch head. By adjusting the length of the connecting rod inserted into the machine tool's punch head, the gap between the upper and lower punch dies can be adjusted. Once the gap is adjusted, the long bolt can be tightened, allowing it to push the ejector slide through the inclined slot, enabling it to engage with the machine tool's punch head. This allows for adjustment of the gap between the upper and lower punch dies, enabling the stamping of plates of different thicknesses. It also optimizes the stress state of the die, extends the die's service life, and reduces the scrap rate.
[0020] 2. The auxiliary spring can increase the rebound speed of the top plate, allowing the upper and lower stamping dies to separate more quickly. The guide rod can guide the movement of the top plate. The use of copper sleeves allows the copper sleeves and guide rods to be replaced after long-term use, ensuring that worn guide rods and copper sleeves will not affect the movement of the top plate and the upper stamping die. This makes the upper and lower stamping dies more accurate when closing, improving stamping quality and facilitating maintenance.
[0021] 3. After the lower stamping die separates from the connecting plate, the lower extension rod will be released. At this time, the lifting spring will push the connecting plate to move, allowing the ejector rod to be ejected from the lower stamping die. Through the threaded hole on the outer surface of the connecting plate, the position of the ejector rod on the connecting plate can be mechanically adjusted when changing different lower stamping dies. This allows the stamped parts to be loosened, making it easier for workers to remove them from the lower stamping die, improving the efficiency of processing and picking up parts, and allowing for flexible adjustment of the position of the ejector rod on the connecting plate.
[0022] 4. After the gap between the upper and lower stamping dies is adjusted, the length of the adjusting screw on the top plate needs to be adjusted so that one end of the adjusting screw can contact the lower extension rod. The circular rubber sheet at one end of the adjusting screw can reduce the impact and noise generated when it contacts the lower extension rod, allowing the lower extension rod to contact the adjusting screw and work normally. This also prevents the lower extension rod from being excessively pressed down by the adjusting screw, which could damage the parts. After the gap between the upper and lower stamping dies is adjusted, the lower extension rod can work normally. Attached Figure Description
[0023] Figure 1 This is a three-dimensional structural diagram of the base and top plate of this utility model;
[0024] Figure 2 This is a three-dimensional cross-sectional view of the connecting rod and the machine tool stamping head of this utility model;
[0025] Figure 3 This is an exploded three-dimensional structural diagram of the long bolt and oblique groove of this utility model;
[0026] Figure 4 This is a cross-sectional perspective view of the base and top plate of this utility model.
[0027] Figure 5 This is a three-dimensional cross-sectional view of the connecting plate and the top rod of this utility model;
[0028] Figure 6 This is a three-dimensional structural diagram of the connecting plate and lifting spring of this utility model.
[0029] In the diagram: 1. Base; 2. Guide rod; 3. Auxiliary spring; 4. Top plate; 5. Copper sleeve; 6. Connecting rod; 7. Machine punch head; 8. Push slide plate; 9. Long bolt; 10. Angled groove; 11. Upper punch die; 12. Lower punch die; 13. Connecting plate; 14. Push rod; 15. Lifting spring; 16. Downward extension rod; 17. Adjustment screw. Detailed Implementation
[0030] 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.
[0031] Please see Figure 1-6This utility model provides a technical solution: an adjustable gap left and right front sealing plate stamping die, including a base 1, the base 1 is fixedly installed on the outer surface of a stamping machine, and a guide rod 2 is threadedly installed on the outer surface of the base 1. A top plate 4 is slidably installed at one end of the guide rod 2, and an auxiliary spring 3 is provided between the top plate 4 and the base 1. A connecting rod 6 is fixedly installed on the outer surface of the top plate 4, and a push-up slide plate 8 is slidably installed on both sides of the outer surface of the connecting rod 6, and the push-up slide plate 8 is engaged with the connecting rod 6. A machine table stamping head 7 is slidably installed on the outer surface of the connecting rod 6, and the machine table stamping head 7 is connected to the stamping machine. Grooves are opened on both sides of the outer surface of the machine table stamping head 7, and the grooves of the machine table stamping head 7 are engaged with the outer surface of the push-up slide plate 8. A long bolt 9 is threadedly installed on the outer surface of the connecting rod 6, and an oblique groove 10 is opened on the outer surface of the push-up slide plate 8, and the outer surface of the oblique groove 10 is in contact with the outer surface of the long bolt 9.
[0032] The base 1 can be easily installed on the outer surface of the stamping machine. When it is necessary to produce left and right front sealing plates of different models and thicknesses, the long bolt 9 can be loosened by pressing the stamping head 7 of the machine tool appropriately. By loosening the long bolt 9, the push plate 8 can be retracted into the connecting rod 6, so that the stamping head 7 of the machine tool and the push plate 8 can be disengaged. Then, the gap between the upper stamping die 11 and the lower stamping die 12 can be adjusted. After the adjustment is completed, the long bolt 9 is tightened. Through the contact between the long bolt 9 and the inclined groove 10, one side of the push plate 8 can be pushed out of the connecting rod 6, so that the push plate 8 can be engaged with the stamping head 7 of the machine tool. The distance between the connecting rod 6 and the stamping head 7 of the machine tool can be adjusted, and the gap between the upper stamping die 11 and the lower stamping die 12 can be adjusted to facilitate the stamping of plates of different thicknesses and reduce the quality problems that occur after the plates are stamped.
[0033] A scale is provided on one side of the outer surface of the connecting rod 6, and the outer surface of the connecting rod 6 is in contact with the outer surface of the machine tool punching head 7.
[0034] The scale on the side surface of the connecting rod 6 allows for direct observation of the movement distance between the connecting rod 6 and the machine tool stamping head 7 when adjusting the distance between them. This reduces the problem of excessive or insufficient gap between the upper stamping die 11 and the lower stamping die 12 after adjustment, and improves the convenience of adjustment.
[0035] A copper sleeve 5 is installed through the outer surface of the top plate 4, and the copper sleeve 5 is engaged with the top plate 4. The guide rod 2 and the copper sleeve 5 are concentrically designed, and the copper sleeve 5 and the guide rod 2 are slidably connected.
[0036] By using the guide rod 2 and the copper sleeve 5, when the guide rod 2 and the copper sleeve 5 are worn due to excessive use, they can be easily removed from the base 1 and the top plate 4 and replaced. This prevents the upper stamping die 11 and the lower stamping die 12 from being damaged or of poor quality due to gaps or shaking during stamping. At the same time, the auxiliary spring 3 allows the top plate 4 to rebound more quickly, reducing the probability of wear on the upper stamping die 11 and the lower stamping die 12 leading to a decrease in lifespan.
[0037] A lower stamping die 12 is fixedly installed on the outer surface of the base 1, and an upper stamping die 11 is fixedly installed on the outer surface of the top plate 4. The upper stamping die 11 and the lower stamping die 12 are designed to be coaxial, and the lower stamping die 12 is inserted into the upper stamping die 11. A lifting mechanism is provided between the lower stamping die 12 and the base 1.
[0038] The fixing of the upper stamping die 11 to the top plate 4 and the fixing of the lower stamping die 12 to the base 1 eliminates the need to completely remove the base 1 and the top plate 4 when replacing the upper stamping die 11 and the lower stamping die 12, thus improving the convenience and efficiency of replacing the upper stamping die 11 and the lower stamping die 12.
[0039] The lifting mechanism includes: a connecting plate 13, which is slidably disposed inside the base 1, and lifting springs 15 are evenly disposed between the base 1 and the connecting plate 13. A push rod 14 is threadedly installed on the outer surface of the lifting spring 15. The push rod 14 penetrates the outer surface of the lower stamping die 12, and the lower stamping die 12 and the push rod 14 are slidably connected. A downward extension rod 16 is fixedly installed on both outer surfaces of the connecting plate 13, and the downward extension rod 16 penetrates the outer surface of the base 1. The outer surface of the downward extension rod 16 does not fit against the outer surface of the lower stamping die 12.
[0040] After the upper stamping die 11 and the lower stamping die 12 have finished stamping the sheet metal and separated, the lower extension rod 16 will be released. At this time, the lifting spring 15 will push the connecting plate 13 to move inside the base 1, so that the ejector rod 14 can be ejected from the lower stamping die 12. This allows the parts in the lower stamping die 12 to be ejected by the ejector rod 14. When stamping, the lower extension rod 16 will be squeezed, causing the connecting plate 13 to drive the ejector rod 14 to retract into the lower stamping die 12. This allows the parts to be easily removed from the lower stamping die 12 without the need for tools. At the same time, when the upper stamping die 11 and the lower stamping die 12 are combined, the ejector rod 14 automatically retracts. When the upper stamping die 11 and the lower stamping die 12 are separated, the ejector rod 14 automatically ejects.
[0041] The outer surface of the connecting plate 13 is uniformly provided with threaded holes, and a groove is provided between the connecting plate 13 and the base 1, with the groove of the base 1 exposing the threaded holes of the connecting plate 13.
[0042] The ejector pin 14 can be easily adjusted and replaced by the groove and threaded hole on the outer surface of the connecting plate 13, and the position of the ejector pin 14 can be adjusted according to the different models and sizes of the lower punch dies 12.
[0043] Adjustment screws 17 are threaded on the outer surfaces of both ends of the top plate 4, and a rubber block is provided at the end of the adjustment screw 17 near the base 1. A nut is provided on the outer surface of the adjustment screw 17, and the nut of the adjustment screw 17 is in contact with the outer surface of the top plate 4. The adjustment screw 17 and the downward extension rod 16 are concentrically designed, and the outer surface of the downward extension rod 16 is in contact with the outer surface of the adjustment screw 17.
[0044] After the gap between the upper stamping die 11 and the lower stamping die 12 is adjusted, the length of the adjusting screw 17 on the top plate 4 needs to be adjusted. The rubber block at one end of the adjusting screw 17 can reduce the impact and noise generated when it contacts the lower extension rod 16, so that after the gap between the upper stamping die 11 and the lower stamping die 12 is adjusted, the lower extension rod 16 will not be unable to press down or will not be damaged due to excessive pressing.
[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A left and right front sealing plate stamping die with adjustable clearance, comprising a base (1), the base (1) being fixedly mounted on the outer surface of a stamping machine, and a guide rod (2) being threadedly mounted on the outer surface of the base (1), a top plate (4) being slidably mounted on one end of the guide rod (2), and an auxiliary spring (3) being provided between the top plate (4) and the base (1), characterized in that: A connecting rod (6) is fixedly installed on the outer surface of the top plate (4), and a jacking slide plate (8) is slidably installed on both sides of the outer surface of the connecting rod (6). The jacking slide plate (8) is engaged with the connecting rod (6). A machine table punch head (7) is slidably installed on the outer surface of the connecting rod (6), and the machine table punch head (7) is connected to the punching machine. Grooves are provided on both sides of the outer surface of the machine table punch head (7), and the grooves of the machine table punch head (7) are engaged with the outer surface of the jacking slide plate (8). A long bolt (9) is threaded on the outer surface of the connecting rod (6). An oblique groove (10) is provided on the outer surface of the jacking slide plate (8), and the outer surface of the oblique groove (10) is in contact with the outer surface of the long bolt (9).
2. The adjustable gap left and right front sealing plate stamping die according to claim 1, characterized in that: A scale is provided on one side of the outer surface of the connecting rod (6), and the outer surface of the connecting rod (6) is in contact with the outer surface of the machine tool punch head (7).
3. The adjustable gap left and right front sealing plate stamping die according to claim 1, characterized in that: A copper sleeve (5) is installed through the outer surface of the top plate (4), and the copper sleeve (5) is engaged with the top plate (4). The guide rod (2) and the copper sleeve (5) are concentrically designed, and the copper sleeve (5) and the guide rod (2) are slidably connected.
4. The adjustable gap left and right front sealing plate stamping die according to claim 1, characterized in that: A lower stamping die (12) is fixedly installed on the outer surface of the base (1), and an upper stamping die (11) is fixedly installed on the outer surface of the top plate (4). The upper stamping die (11) and the lower stamping die (12) are designed to be coaxial, and the lower stamping die (12) is inserted into the upper stamping die (11). A lifting mechanism is provided between the lower stamping die (12) and the base (1).
5. The adjustable gap left and right front sealing plate stamping die according to claim 4, characterized in that: The lifting mechanism includes: a connecting plate (13), which is slidably disposed inside the base (1), and lifting springs (15) are evenly disposed between the base (1) and the connecting plate (13), and a push rod (14) is threadedly installed on the outer surface of the lifting spring (15), the push rod (14) penetrates the outer surface of the lower stamping die (12), and the lower stamping die (12) and the push rod (14) are slidably connected, and a downward extension rod (16) is fixedly installed on the outer surfaces of both sides of the connecting plate (13), and the downward extension rod (16) penetrates the outer surface of the base (1), and the outer surface of the downward extension rod (16) does not fit against the outer surface of the lower stamping die (12).
6. The adjustable gap left and right front sealing plate stamping die according to claim 5, characterized in that: The outer surface of the connecting plate (13) is uniformly provided with threaded holes, and a groove is provided between the connecting plate (13) and the base (1), and the groove of the base (1) exposes the threaded holes of the connecting plate (13).
7. The adjustable gap left and right front sealing plate stamping die according to claim 1, characterized in that: The top plate (4) has adjusting screws (17) threaded on its outer surfaces at both ends. The adjusting screws (17) have rubber blocks at one end near the base (1). The adjusting screws (17) have nuts on their outer surfaces. The nuts of the adjusting screws (17) are in contact with the outer surfaces of the top plate (4). The adjusting screws (17) and the pressing extension rods (16) are concentrically designed. The outer surfaces of the pressing extension rods (16) are in contact with the outer surfaces of the adjusting screws (17).