Precision stamping die for fasteners

Abstract

The utility model relates to punch die technical field discloses the precision punch die for fastener, including base, the top middle part fixedly connected with fixed platform of base, the top fixedly connected with die holder of fixed platform, the top of die holder is opened punch slot, four corner places of die holder all are fixedly connected with fixed link no. One side of multiple fixed link no. all is fixedly connected with hydraulic rod no. one, another end of multiple hydraulic rod no. all is fixedly connected with connecting block, the inside of multiple connecting block all is opened has the rotation groove, the inner wall of multiple rotation groove all rotates and is connected with the pivot, and the outer wall upper and lower parts of multiple pivot all rotate and are connected with corresponding movable block. In the utility model, the blank is applied pressure by the punch rod, the blank is broken and separated along the contour line of the punch slot, the blank is plastically deformed under the action of the punch rod, and is attached to the surface of the punch slot, so that the punch of the fastener is realized.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, and in particular to precision stamping dies for fasteners. Background Technology

[0002] Stamping dies are an extremely important piece of equipment in industrial production, widely used in the automotive, electronics and aerospace fields. They mainly use the pressure provided by a press to cause the sheet metal to undergo plastic deformation in the die cavity, thereby obtaining parts with specific shapes, sizes and properties.

[0003] Precision stamping dies for fasteners are precision dies specifically designed for the production of various fasteners. Their core function is to precisely stamp metal materials to manufacture fastener products that meet high precision requirements. Through precise structural design and manufacturing processes, these dies ensure that the dimensional accuracy of fasteners reaches extremely high standards during the stamping process, thereby meeting the high precision and high performance requirements of fasteners in different industries and ensuring the stability and reliability of related equipment during use.

[0004] Current positioning systems for precision stamping dies for fasteners have limited accuracy in positioning the blanks, failing to ensure that the blanks remain in the ideal position throughout the stamping process. This leads to a gradual decrease in the dimensional accuracy of the fasteners. Existing technologies employ floating positioning structures, enabling the positioning elements to adapt to minor deformations and positional changes in the blanks within a certain range. This better ensures positioning accuracy and avoids positioning problems caused by the blanks' inherent characteristics. However, for blanks with extremely complex and irregular shapes, these systems cannot precisely adapt to their unique contours and shape features, resulting in inaccurate positioning of critical parts and affecting the overall forming quality of the fasteners. Summary of the Invention

[0005] To overcome the above deficiencies, this utility model provides a precision stamping die for fasteners, aiming to improve the problem in the prior art that it cannot accurately adapt to the special contours and shape characteristics of blanks with extremely complex and irregular shapes, resulting in inaccurate positioning of key parts and affecting the forming quality of the entire fastener.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a precision stamping die for fasteners, comprising a base, a fixed platform fixedly connected to the top center of the base, a die holder fixedly connected to the top of the fixed platform, a stamping groove formed on the top of the die holder, a fixed rod fixedly connected to each of the four corners of the die holder, a hydraulic rod fixedly connected to one side of each of the fixed rods, a connecting block fixedly connected to the other end of each of the hydraulic rods, a rotating groove formed inside each of the connecting blocks, a rotating shaft rotatably connected to the inner wall of each of the rotating grooves, corresponding movable blocks rotatably connected to the upper and lower parts of the outer walls of each of the rotating shafts, a positioning block fixedly connected to one side of each of the movable blocks, a support column fixedly connected to the rear side of the top of the base, a stamping platform fixedly connected to the top of the support column, a stamping rod fixedly connected to the bottom of the stamping platform, and an ejection mechanism provided inside the die holder and at the rear center, the ejection mechanism being used to eject the fastener.

[0007] As a further description of the above technical solution:

[0008] The ejection mechanism includes a hydraulic groove, which is formed inside the mold base. A pad is fixedly connected to the bottom side of the hydraulic groove. A second hydraulic rod is fixedly connected to the top of the pad. A second fixing rod is fixedly connected to the middle of the rear side of the mold base. A third hydraulic rod is fixedly connected to the front side of the top of the second fixing rod. A top block is fixedly connected to the front end of the third hydraulic rod. A protective sleeve is fixedly connected to the front side of the top block.

[0009] As a further description of the above technical solution:

[0010] A controller is fixedly connected to the right side of the support column, and the controller is electrically connected to hydraulic rod one, hydraulic rod two, hydraulic rod three and stamping rod respectively.

[0011] As a further description of the above technical solution:

[0012] A collection groove is provided on the front side of the base, and a collection basket is slidably connected to the inner wall of the collection groove.

[0013] As a further description of the above technical solution:

[0014] Limiting blocks are fixedly connected to both the left and right sides of the collection basket, and limiting grooves are opened on both the left and right sides of the inner wall of the collection trough. The two limiting blocks are slidably connected to the interior of the corresponding limiting grooves.

[0015] As a further description of the above technical solution:

[0016] The inner wall of the collection basket is slidably connected to a cushioning pad, which is made of rubber material.

[0017] As a further description of the above technical solution:

[0018] Each of the positioning blocks is fixedly connected to one side with an anti-slip sleeve, and the bottom of the anti-slip sleeve is slidably connected to the top of the mold base.

[0019] As a further description of the above technical solution:

[0020] The inner wall of the stamping groove is slidably connected to a top plate, and the bottom of the top plate is fixedly connected to the top of the hydraulic rod.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the rotating shaft and the rotating groove are rotatably connected. During the clamping process of the irregular blank, the positioning block can accurately fit the blank according to its shape, realizing the accurate positioning of the blank with complex and irregular shape. The blank is subjected to pressure by the stamping rod at the bottom of the stamping table, causing the blank to break and separate along the contour line of the stamping groove. Under the action of the stamping rod, the blank undergoes plastic deformation and fits onto the surface of the stamping groove, thereby realizing the stamping of the fastener.

[0023] 2. In this utility model, when the stamped fastener is ejected, the hydraulic rod two at the top of the pad block starts to work. The hydraulic rod two lifts the top plate upward. At this time, the stamped fastener located above the top plate is ejected. The hydraulic rod three pushes the top block forward. The top block then ejects the ejected fastener forward, thus realizing the ejection of the fastener. Attached Figure Description

[0024] Figure 1 This is a perspective view of the precision stamping die for fasteners proposed in this utility model;

[0025] Figure 2 This is a structural exploded view of the precision stamping die for fasteners proposed in this utility model;

[0026] Figure 3 This is a partial schematic diagram of the structure of the precision stamping die for fasteners proposed in this utility model;

[0027] Figure 4 for Figure 3 Enlarged view of point A in the image;

[0028] Figure 5 This is a structural cross-sectional view of the precision stamping die for fasteners proposed in this utility model.

[0029] Legend:

[0030] 1. Base; 2. Ejection mechanism; 201. Hydraulic groove; 202. Pad block; 203. Hydraulic rod two; 204. Fixing rod two; 205. Hydraulic rod three; 206. Ejector block; 207. Protective sleeve; 3. Fixing platform; 4. Mold base; 5. Fixing rod one; 6. Hydraulic rod one; 7. Connecting block; 8. Rotary groove; 9. Rotating shaft; 10. Movable block; 11. Positioning block; 12. Support column; 13. Stamping table; 14. Stamping rod; 15. Stamping groove; 16. Controller; 17. Collection groove; 18. Collection basket; 19. Limiting block; 20. Limiting groove; 21. Buffer pad; 22. Anti-slip sleeve; 23. Top plate. Detailed Implementation

[0031] 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.

[0032] Reference Figure 1 , Figure 2 and Figure 3 This utility model provides an embodiment of a precision stamping die for fasteners, comprising a base 1, a fixed platform 3 fixedly connected to the top center of the base 1 for fixing, a die base 4 fixedly connected to the top of the fixed platform 3, a stamping groove 15 provided on the top of the die base 4 to ensure the dimensional accuracy of the fastener, fixed rods 5 fixedly connected to the four corners of the die base 4, hydraulic rods 6 fixedly connected to one side of each of the multiple fixed rods 5, and connecting blocks 7 fixedly connected to the other end of each of the multiple hydraulic rods 6. The interior is provided with rotating grooves 8, and the inner walls of multiple rotating grooves 8 are rotatably connected to rotating shafts 9. The upper and lower parts of the outer walls of multiple rotating shafts 9 are rotatably connected to corresponding movable blocks 10. The side of multiple movable blocks 10 is fixedly connected to a positioning block 11 to position the blank. The top rear side of the base 1 is fixedly connected to a support column 12, the top of the support column 12 is fixedly connected to a stamping table 13, and the bottom of the stamping table 13 is fixedly connected to a stamping rod 14. The interior and rear middle of the mold base 4 are provided with an ejection mechanism 2, which is used to eject the fasteners.

[0033] Specifically, the blank is first placed on the top of the mold base 4, and the hydraulic rod 6 starts to work. The hydraulic rod 6 pushes the connecting block 7 and the rotating shaft 9 to move. The rotating shaft 9 pushes the movable block 10 and the positioning block 11 to move. Since the rotating shaft 9 and the rotating groove 8 are rotatably connected, the positioning block 11 can accurately fit the shape of the blank during the clamping process, realizing the accurate positioning of the blank with complex and irregular shape. The blank is then subjected to pressure by the stamping rod 14 at the bottom of the stamping table 13, causing the blank to break and separate along the contour line of the stamping groove 15. Under the action of the stamping rod 14, the blank undergoes plastic deformation and fits onto the surface of the stamping groove 15, thereby realizing the stamping of the fastener.

[0034] Reference Figure 4 and Figure 5 The ejection mechanism 2 includes a hydraulic groove 201, which is opened inside the mold base 4. A pad 202 is fixedly connected to the bottom side of the inside of the hydraulic groove 201. A hydraulic rod 203 is fixedly connected to the top of the pad 202. A fixing rod 204 is fixedly connected to the middle of the rear side of the mold base 4. A hydraulic rod 205 is fixedly connected to the front side of the top of the fixing rod 204. An ejector block 206 is fixedly connected to the front end of the hydraulic rod 205. A protective sleeve 207 is fixedly connected to the front side of the ejector block 206 to protect the fasteners that have been stamped when they are ejected.

[0035] Specifically, the hydraulic rod 203 at the top of the pad 202 starts to work, and the hydraulic rod 203 pushes the top plate 23 upward. At this time, the fastener that has been stamped above the top plate 23 is pushed out. The top block 206 is pushed forward by the hydraulic rod 205, and the fastener that has been pushed out is pushed forward by the top block 206, thus realizing the ejection of the fastener.

[0036] Reference Figure 1 , Figure 3 and Figure 5 A controller 16 is fixedly connected to the right side of the support column 12. The controller 16 is electrically connected to the hydraulic rod 6, hydraulic rod 203, hydraulic rod 3 205 and the stamping rod 14 respectively, so as to achieve coordinated work and unified control. A collection groove 17 is opened on the front side of the base 1. A collection basket 18 is slidably connected to the inner wall of the collection groove 17 to collect and store the ejected fasteners. Limiting blocks 19 are fixedly connected to the left and right sides of the collection basket 18. Limiting grooves 20 are opened on the left and right sides of the inner wall of the collection groove 17. The two limiting blocks 19 are slidably connected to the interior of the corresponding limiting grooves 20 respectively.

[0037] Specifically, the electrical connection of each component enables components with different functions to work together to complete complex tasks. The collection basket 18 can collect and store the ejected fasteners. The limiting block 19 is slidably connected inside the limiting groove 20, thereby limiting the collection basket 18.

[0038] Reference Figure 2 , Figure 3 and Figure 5 The inner wall of the collection basket 18 is slidably connected with a buffer pad 21, which is made of rubber material and has a buffering and protective function. One side of each of the multiple positioning blocks 11 is fixedly connected with an anti-slip sleeve 22 to increase the friction between the positioning block 11 and the blank. The bottom of the multiple anti-slip sleeves 22 is slidably connected to the top of the mold base 4. The inner wall of the stamping groove 15 is slidably connected with a top plate 23, and the bottom of the top plate 23 is fixedly connected to the top of the hydraulic rod 203.

[0039] Specifically, the buffer pad 21 prevents the fastener from directly colliding with the collection basket 18 and provides buffer protection, the anti-slip sleeve 22 increases the friction between the positioning block 11 and the blank, thereby making the positioning of the blank more accurate, and the top plate 23 can support the fastener so that the fastener can remain horizontal when it is ejected.

[0040] Working principle: When using the precision stamping die for fasteners, the blank is first placed on the top of the die base 4. The hydraulic rod 6 starts to work, pushing the connecting block 7 and the rotating shaft 9 to move. The rotating shaft 9 pushes the movable block 10 and the positioning block 11 to move. Since the rotating shaft 9 and the rotating groove 8 are rotatably connected, the positioning block 11 can accurately fit the shape of the blank during the clamping process, realizing the precise positioning of the blank with complex and irregular shape. The stamping rod 14 at the bottom of the stamping table 13 applies pressure to the blank, causing the blank to break and separate along the contour line of the stamping groove 15. Under the action of the stamping rod 14, the blank undergoes plastic deformation and fits onto the surface of the stamping groove 15, thereby realizing the stamping of the fastener.

[0041] Furthermore, when the stamped fastener is ejected, the hydraulic rod 203 on the top of the pad 202 starts to work. The hydraulic rod 203 lifts the top plate 23 upward. At this time, the stamped fastener located above the top plate 23 is ejected. The top block 206 is pushed forward by the hydraulic rod 205. The ejected fastener is then pushed forward by the top block 206, thus achieving the ejection of the fastener.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 precision stamping die for fasteners, comprising a base (1), characterized in that: A fixed platform (3) is fixedly connected to the top center of the base (1), and a mold base (4) is fixedly connected to the top of the fixed platform (3). A stamping groove (15) is opened on the top of the mold base (4). Fixed rods (5) are fixedly connected to the four corners of the mold base (4). Hydraulic rods (6) are fixedly connected to one side of each of the fixed rods (5). Connecting blocks (7) are fixedly connected to the other end of each of the hydraulic rods (6). Rotating grooves (8) are opened inside each of the connecting blocks (7). The inner walls of the rotating grooves (8) are rotatable. A rotating shaft (9) is connected to the base (1). The upper and lower parts of the outer walls of the multiple rotating shafts (9) are rotatably connected to corresponding movable blocks (10). A positioning block (11) is fixedly connected to one side of the multiple movable blocks (10). A support column (12) is fixedly connected to the top rear side of the base (1). A stamping table (13) is fixedly connected to the top of the support column (12). A stamping rod (14) is fixedly connected to the bottom of the stamping table (13). An ejection mechanism (2) is provided inside the mold base (4) and in the middle of the rear side. The ejection mechanism (2) is used to eject the fastener.

2. The precision stamping die for fasteners according to claim 1, characterized in that: The ejection mechanism (2) includes a hydraulic groove (201), which is located inside the mold base (4). A pad (202) is fixedly connected to the bottom side of the hydraulic groove (201). A hydraulic rod (203) is fixedly connected to the top of the pad (202). A fixing rod (204) is fixedly connected to the middle of the rear side of the mold base (4). A hydraulic rod (205) is fixedly connected to the front side of the top of the fixing rod (204). A top block (206) is fixedly connected to the front end of the hydraulic rod (205). A protective sleeve (207) is fixedly connected to the front side of the top block (206).

3. The precision stamping die for fasteners according to claim 1, characterized in that: A controller (16) is fixedly connected to the right side of the support column (12). The controller (16) is electrically connected to the hydraulic rod one (6), hydraulic rod two (203), hydraulic rod three (205) and the stamping rod (14).

4. The precision stamping die for fasteners according to claim 1, characterized in that: A collection groove (17) is provided on the front side of the base (1), and a collection basket (18) is slidably connected to the inner wall of the collection groove (17).

5. The precision stamping die for fasteners according to claim 4, characterized in that: The left and right sides of the collection basket (18) are fixedly connected to limit blocks (19), and the left and right sides of the inner wall of the collection groove (17) are provided with limit grooves (20). The two limit blocks (19) are respectively slidably connected to the interior of the corresponding limit grooves (20).

6. The precision stamping die for fasteners according to claim 4, characterized in that: The inner wall of the collection basket (18) is slidably connected to a cushioning pad (21), which is made of rubber material.

7. The precision stamping die for fasteners according to claim 1, characterized in that: Each of the multiple positioning blocks (11) is fixedly connected to one side with an anti-slip sleeve (22), and the bottom of the multiple anti-slip sleeves (22) is slidably connected to the top of the mold base (4).

8. The precision stamping die for fasteners according to claim 1, characterized in that: The inner wall of the stamping groove (15) is slidably connected to a top plate (23), and the bottom of the top plate (23) is fixedly connected to the top of the hydraulic rod (203).

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