Safety positioning device for automobile stamping die

Abstract

The utility model relates to an automobile stamping die safety positioning device, and relates to the technical field of stamping dies, the automobile stamping die safety positioning device comprises a base, a fixed die is fixedly arranged at the top of the base, a movable die is vertically and slidably arranged above the base, the fixed die and the movable die can be mutually embedded, and the center of a die cavity of the fixed die is communicated and provided with a demolding groove; a demolding groove is formed in the fixed mold, a demolding plate is vertically and slidably arranged in the demolding groove, the top of the demolding plate can extend out of the top of the demolding groove, a driving rod is rotationally arranged in the fixed mold in the horizontal direction, the driving rod penetrates through the demolding groove and is arranged below the demolding plate, a cam is fixedly arranged on the side wall of the driving rod, and the cam abuts against the bottom of the demolding plate. The stamping die has the effects that parts can be demolded conveniently after stamping machining, and the stamping efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of stamping dies, and particularly to a safety positioning device for automotive stamping dies. Background Art

[0002] A stamping die is a special process equipment that processes materials into parts in cold stamping processing, and can also be called a cold stamping die. Stamping dies are often widely used in the production and manufacturing process of automotive parts.

[0003] An existing positioning device for a stamping die of an automotive part includes a base plate. A lead screw is rotatably provided in the middle of one side of the top of the base plate. A crank is fixed to the top of the lead screw. The outer wall of the lead screw is threadedly connected to the middle of the top of a moving plate. The middle of one side of the moving plate is fixedly connected to one side of a moving die. Two clamping rods are symmetrically arranged on both sides of the bottom of the moving die. The bottoms of the four clamping rods are respectively engaged with four clamping holes. By driving the lead screw to rotate with the crank, the moving plate is driven to move downwards. The moving die moves downwards accordingly and drives the four clamping rods to move downwards until the bottoms of the four clamping rods are respectively correspondingly engaged with the four clamping holes at the top of a fixed die. The die is automatically installed in this way, without repeatedly adjusting the die position, saving time and effort, and the installation is accurate.

[0004] In the process of implementing this application, it is found that there are at least the following problems in this technology: After the stamping device processes the automotive part by stamping, the part will adhere tightly to the inside of the die, making it troublesome to demold the part, which is not conducive to replacing the part and greatly affects the stamping efficiency. Summary of the Utility Model

[0005] In order to facilitate demolding of the part after stamping processing and improve the stamping efficiency, this application provides a safety positioning device for automotive stamping dies.

[0006] A safety positioning device for automotive stamping dies provided by this application adopts the following technical solution:

[0007] A safety positioning device for automotive stamping dies includes a base. A fixed die is fixedly provided on the top of the base. A moving die is vertically slidably provided above the base. The fixed die and the moving die can be mutually engaged. A demolding groove is communicated and opened in the center of the die groove of the fixed die. A demolding plate is vertically slidably provided in the demolding groove. The top of the demolding plate can extend out from the top of the demolding groove. A driving rod is rotatably provided in the fixed die in the horizontal direction. The driving rod passes through the demolding groove and is arranged below the demolding plate. A cam is fixedly provided on the side wall of the driving rod. The cam abuts against the bottom of the demolding plate.

[0008] By adopting the above technical scheme, when in use, the movable die is driven to be pressed down close to the fixed die, and the automobile parts are stamped and formed in the fixed die. When taking out the automobile parts, the driving rod is driven to rotate, and the driving rod drives the cam to deflect, and the convex part of the cam lifts the stripping plate, and the stripping plate moves up and extends out of the stripping groove. The stripping plate extending out of the stripping groove pushes out the automobile parts in the fixed die, so that it is convenient to demold the parts after the stamping process and improve the stamping efficiency.

[0009] Preferably, a clamping spring is arranged between the stripping plate and the stripping groove, one end of the clamping spring is fixedly connected to the bottom wall of the stripping plate, and the other end of the clamping spring is fixedly connected to the bottom wall of the stripping groove, and the clamping spring drives the stripping plate to approach the bottom wall of the stripping groove.

[0010] By adopting the above technical solution, the pressing spring drives the stripping plate to approach the bottom wall of the stripping groove, so that the stripping plate always maintains a tendency to move downward, and the cam and the bottom of the stripping plate remain in a state of abutment so that the stripping plate can return downward to the stripping groove.

[0011] Preferably, four retaining springs are symmetrically arranged at the bottom of the stripping plate, and the retaining springs are arranged close to the four corners of the stripping plate.

[0012] By adopting the above technical solution, the clamping springs are arranged near the four corners of the stripping plate, so that the force exerted by the clamping springs on the stripping plate is evenly distributed and acts synchronously at the four corners of the stripping plate, thereby improving the stability of the stripping plate's descending movement process and avoiding the stripping plate from being in a certain position of the stripping groove as much as possible.

[0013] Preferably, two driving rods are rotatably arranged in the fixed mold, and the axes of the two driving rods are parallel to each other and located in the same horizontal plane.

[0014] By adopting the above technical solution, in the process of driving the stripper plate to rise, the driving rods are driven to rotate synchronously, and the cams on the two driving rods synchronously lift the stripper plate, thereby improving the stability of the stripper plate rising movement process.

[0015] Preferably, one of the driving rods passes through the outer wall of the fixed mold and is coaxially fixed with a first gear, and the other driving rod passes through the outer wall of the fixed mold and is coaxially fixed with a second gear, the first gear and the second gear are consistent in specifications and mesh with each other, and the cams are symmetrically arranged on the two driving rods and can deflect to the side away from each other.

[0016] By adopting the above technical solution, when one of the driving rods rotates, the first gear and the second gear mesh with each other, thereby ensuring the synchronization of the rotation process of the two driving rods and their rotation directions are opposite, and the cams are symmetrically arranged on the two driving rods and can be deflected to the sides away from each other, and the raised parts of the cams synchronously deflect towards each other, and the cams lift the stripping plate at the same time.

[0017] Preferably, a pull rod is vertically arranged at the end of one of the driving rods, the bottom end of the pull rod is fixedly connected to the driving rod, and a grip ball is fixedly arranged at the top end of the pull rod.

[0018] By adopting the above technical solution, when the driving rod needs to be driven to rotate, the staff grasps the grip ball and pulls the pull rod, and the pull rod drives the driving rod to rotate an angle. During this process, the pull rod acts as a lever, thereby driving the driving rod to rotate more easily.

[0019] Preferably, a first limit block and a second limit block are fixedly provided on the base, the first limit block is provided on one side of the pull rod and can be abutted against the side wall of the pull rod, and the second limit block is provided on the other side of the pull rod and can be abutted against the side wall of the pull rod.

[0020] By adopting the above technical solution, the first limit block and the second limit block limit the pull rod, thereby limiting the movement range of the pull rod and further limiting the movement range of the cam.

[0021] Preferably, a torsion spring is provided at the rotation connection between the driving rod and the fixed mold, and the torsion spring drives the raised portion of the cam away from the stripping plate.

[0022] By adopting the above technical solution, the torsion spring drives the raised part of the cam away from the stripping plate. When no torsion force is applied to the driving rod, the stripping plate is hidden in the stripping groove, thereby avoiding interference with the stamping of automobile parts as much as possible.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. By setting up a demoulding groove, a demoulding plate, a driving rod, a cam, and a tightening spring, the automotive parts in the fixed die are ejected through the demoulding plate extending out of the demoulding groove, so as to facilitate demoulding of the parts after stamping processing and improve stamping efficiency;

[0025] 2. By setting the first gear, the second gear, the pull rod and the grip ball, the driving rod can be easily driven to rotate by pulling the pull rod, and the synchronization of the rotation process of the two driving rods is ensured, thereby improving the stability of the stripping plate rising movement process. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of a safety positioning device for an automobile stamping die provided in an embodiment of the present application.

[0027] Figure 2 It is a schematic cross-sectional structure diagram of a safety positioning device for an automobile stamping die provided in an embodiment of the present application.

[0028] Figure 3 It is a schematic diagram of the internal structure of the reaction demoulding tank in the embodiment of the present application.

[0029] Description of reference numerals: 1. Base; 11. First limit block; 12. Second limit block; 2. Fixed mold; 21. Demolding groove; 22. Demolding plate; 23. Driving rod; 231. Cam; 232. First gear; 233. Second gear; 234. Pull rod; 235. Grip ball; 24. Tightening spring; 3. Movable mold. Specific implementation mode

[0030] The following is further described in detail with reference to the attached Figures 1 - 3 drawings of the present application.

[0031] An embodiment of the present application discloses a safety positioning device for an automotive stamping die. Referring to Figure 1 , it includes a base 1. A fixed mold 2 is fixedly arranged on the top of the base 1. A movable mold 3 is vertically slidably arranged above the base 1. The movable mold 3 and the fixed mold 2 cooperate with each other to stamp automotive parts. A demolding groove 21 is communicated and opened in the center of the mold groove of the fixed mold 2. A vertically slidable demolding plate 22 is arranged in the demolding groove 21. The top of the demolding plate 22 can extend out of the top end of the demolding groove 21 to facilitate ejecting the stamped automotive parts from the fixed mold 2.

[0032] In order to realize the lifting and lowering of the demolding plate 22, referring to Figure 2 and Figure 3 , a driving rod 23 is rotatably arranged horizontally in the fixed mold 2. The driving rod 23 passes through the demolding groove 21 and is arranged below the demolding plate 22. A cam 231 is fixed on the driving rod 23. The cam 231 is in contact with the bottom of the demolding plate 22. During use, the movable mold 3 presses down to cooperate with the fixed mold 2 to complete the stamping of automotive parts. After forming, the driving rod 23 is rotated to deflect the cam 231. The convex part of the cam 231 pushes up the demolding plate 22, and then the automotive parts are ejected from the fixed mold 2 to realize convenient demolding. A torsion spring is arranged at the rotational connection between the driving rod 23 and the fixed mold 2. The torsion spring drives the convex part of the cam 231 away from the demolding plate 22. When no torsional force is applied to the driving rod 23, the torsion spring drives the convex part of the cam 231 away from the demolding plate 22, so that the demolding plate 22 can be hidden in the demolding groove 21 to avoid interfering with the stamping of automotive parts as much as possible.

[0033] Referring to Figure 2 and Figure 3Four pressing springs 24 are arranged between the stripping plate 22 and the stripping groove 21, and the pressing springs 24 are arranged near the four corners of the stripping plate 22. One end of the pressing spring 24 is fixedly connected to the bottom wall of the stripping plate 22, and the other end is fixedly connected to the bottom wall of the stripping groove 21. The pressing spring 24 drives the stripping plate 22 to approach the bottom wall of the stripping groove 21. This design ensures that the cam 231 and the bottom of the stripping plate 22 always maintain abutment against each other. When the cam 231 no longer applies a lifting force to the stripping plate 22, it ensures that the stripping plate 22 can be smoothly reset. All the pressing springs 24 drive the stripping plate 22 to automatically and smoothly reset to the stripping groove 21, ready for the next stamping operation.

[0034] In order to improve the stability of the stripping plate 22 during the lifting process, refer to Figure 2 and Figure 3 Two driving rods 23 are rotatably arranged in the fixed mold 2. The axes of the two driving rods 23 are parallel to each other and are located in the same horizontal plane. Two cams 231 are arranged on each of the two driving rods 23. One of the driving rods 23 penetrates the outer wall of the fixed mold 2 and is coaxially fixed with a first gear 232 and vertically provided with a pull rod 234. The bottom end of the pull rod 234 is fixedly connected to the driving rod 23, and a grip ball 235 is fixedly arranged on the top of the pull rod 234. The other driving rod 23 penetrates the outer wall of the fixed mold 2 and is coaxially fixed with a second gear 233. The first gear 232 and the second gear 233 have the same specifications and mesh with each other. The cams 231 are symmetrically arranged on the two driving rods 23 and can deflect to the side away from each other.

[0035] Reference Figure 1 and Figure 2 When the driving rod 23 needs to be driven to rotate, the staff member grabs the gripping ball 235 and pulls the pull rod 234, which drives the driving rod 23 to rotate. The pull rod 234 acts as a lever to more easily drive one of the driving rods 23 to rotate. Under the action of the mutual engagement of the first gear 232 and the second gear 233, the other driving rod 23 rotates synchronously, ensuring that the cams 231 on both sides can lift the stripping plate 22 at the same time, thereby maintaining the stability of the stripping plate 22 during the lifting process.

[0036] The implementation principle of a safety positioning device for an automotive stamping die in an embodiment of this application is as follows: When removing automotive parts, pull the pull rod 234, and the pull rod 234 drives a drive rod 23 to rotate. Under the meshing action of the first gear 232 and the second gear 233, another drive rod 23 is driven to rotate. The drive rod 23 drives the cam 231 to deflect, and the protruding part of the cam 231 lifts the stripping plate 22. The stripping plate 22 moves upward and extends out of the stripping groove 21, and the stripping plate 22 extending out of the stripping groove 21 pushes out the automotive parts in the fixed die 2, so as to facilitate demolding of the parts after stamping processing and improve stamping efficiency. Then release the pull rod 234, and the torsion spring drives the protruding part of the cam 231 away from the stripping plate 22, and the protruding part of the cam 231 does not exert a force on the stripping plate 22. The tightening spring 24 drives the stripping plate 22 to approach the bottom wall of the stripping groove 21, so that the stripping plate 22 is hidden in the stripping groove 21, and interference with the stamping of automotive parts is avoided as much as possible.

[0037] The above are all preferred embodiments of this application. The protection scope of this application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered by the protection scope of this application.

Claims

1. An automotive stamping die safety positioning device, comprising a base (1), a fixed die (2) is fixedly arranged on the top of the base (1), a moving die (3) is vertically slidably arranged above the base (1), and the fixed die (2) and the moving die (3) can be mutually engaged, characterized in that: A demolding groove (21) is provided in the center of the mold cavity of the fixed mold (2) and is connected. A demolding plate (22) is vertically slidably arranged in the demolding groove (21). The top of the demolding plate (22) can extend out from the top of the demolding groove (21). A driving rod (23) is rotatably arranged in the fixed mold (2) in the horizontal direction. The driving rod (23) passes through the demolding groove (21) and is arranged below the demolding plate (22). A cam (231) is fixedly arranged on the side wall of the driving rod (23), and the cam (231) abuts against the bottom of the demolding plate (22).

2. The safety positioning device for an automotive stamping die according to claim 1, wherein: A pressing spring (24) is arranged between the demolding plate (22) and the bottom wall of the demolding groove (21). One end of the pressing spring (24) is fixedly connected to the bottom wall of the demolding plate (22), and the other end of the pressing spring (24) is fixedly connected to the bottom wall of the demolding groove (21). The pressing spring (24) urges the demolding plate (22) to approach the bottom wall of the demolding groove (21).

3. The safety positioning device for an automotive stamping die according to claim 2, wherein: Four pressing springs (24) are symmetrically arranged at the bottom of the demolding plate (22), and the four pressing springs (24) are arranged near the four corners of the demolding plate (22).

4. A safety positioning device for an automotive stamping die according to claim 1, characterized in that: Two driving rods (23) are rotatably arranged in the fixed mold (2), and the axes of the two driving rods (23) are parallel to each other and are located in the same horizontal plane.

5. The safety positioning device for an automotive stamping die according to claim 2, characterized in that: One of the driving rods (23) penetrates through the outer side wall of the fixed mold (2) and is coaxially fixed with a first gear (232), and the other driving rod (23) penetrates through the outer side wall of the fixed mold (2) and is coaxially fixed with a second gear (233). The first gear (232) and the second gear (233) have the same specifications and are meshed with each other. The cams (231) are symmetrically arranged on the two driving rods (23) and can deflect away from each other.

6. The safety positioning device for an automotive stamping die according to claim 3, wherein: A pull rod (234) is vertically arranged at the end of one of the driving rods (23). The bottom end of the pull rod (234) is fixedly connected to the driving rod (23), and the top end of the pull rod (234) is fixedly provided with a grip ball (235).

7. The safety positioning device for an automotive stamping die according to claim 4, wherein: A first limiting block (11) and a second limiting block (12) are fixedly arranged on the base (1). The first limiting block (11) is arranged on one side of the pull rod (234) and can abut against the side wall of the pull rod (234), and the second limiting block (12) is arranged on the other side of the pull rod (234) and can abut against the side wall of the pull rod (234).

8. The safety positioning device for an automotive stamping die according to claim 1, wherein: A torsion spring is arranged at the rotational connection of the driving rod (23) and the fixed mold (2), and the torsion spring urges the convex part of the cam (231) to be away from the demolding plate (22).

Images