A clamping and positioning mechanism for metal profile stamping

Abstract

The utility model belongs to metal profile processing equipment technical field, concretely relates to a kind of metal profile stamping clamping positioning mechanism, including rack, bottom plate, top plate, movable plate, hydraulic oil cylinder and stamping die, bottom plate is fixed on rack, bracing is fixed between top plate and bottom plate, movable plate is between top plate and bottom plate, hydraulic oil cylinder is set in the top of top plate, the piston rod of hydraulic oil cylinder passes through top plate and is fixedly connected with movable plate, stamping die includes stamping lower plate, lower die, pressing plate and stamping upper plate, stamping lower plate is fixed on bottom plate, lower die is fixed on stamping lower plate by bolt, pressing plate is set in the top of lower die, the top of stamping upper plate is fixedly connected with movable plate, guiding telescopic link is set between stamping upper plate and stamping lower plate, spring assembly is set between stamping upper plate and pressing plate.The device is not only accurate positioning, but also can change different lower die according to different specifications of metal profile, and is widely used, and practicality is strong.

Description

Technical Field

[0001] This utility model belongs to the technical field of metal profile processing equipment, and specifically relates to a clamping and positioning mechanism for metal profile stamping. Background Technology

[0002] Metal profiles refer to solid straight bars of metal that have been plastically shaped and have a specific cross-sectional shape and size. Metal profiles come in a wide variety of specifications and have extensive applications, playing a crucial role in rolling production. They are primarily used in building doors and windows, curtain walls, interior and exterior decoration, and photovoltaic brackets.

[0003] Currently, when stamping metal profiles, the profiles need to be clamped and positioned before the stamping operation. However, due to the wide variety of metal profile specifications, and the relatively simple and fixed mold structure of existing clamping and positioning mechanisms, they can only process one type of metal profile, resulting in a narrow range of applications and low practicality.

[0004] Therefore, there is an urgent need for a clamping and positioning mechanism for metal profile stamping to solve the above problems. Utility Model Content

[0005] To address the aforementioned deficiencies in existing technologies, this utility model provides a clamping and positioning mechanism for metal profile stamping, comprising a frame and a positioning assembly. The positioning assembly includes a base plate, a top plate, a movable plate, a hydraulic cylinder, and a stamping die. The base plate is fixed to the frame, the top plate is located above the base plate, and four support rods are fixedly connected between the top plate and the base plate. The movable plate is located between the top plate and the base plate, and all four support rods penetrate the movable plate. The hydraulic cylinder is located above the top plate, and its piston rod passes through the top plate and is fixedly connected to the movable plate. The stamping die is located between the movable plate and the base plate, and includes a lower stamping plate, a lower die, a pressure plate, and an upper stamping plate. The lower stamping plate is fixed to the base plate, the lower die is fixed to the lower stamping plate by bolts, the pressure plate is located above the lower die, and the upper stamping plate is located above the pressure plate. The top of the upper stamping plate is fixedly connected to the movable plate. Four guide telescopic rods are connected between the upper stamping plate and the lower stamping plate, and four spring assemblies are connected between the upper stamping plate and the pressure plate.

[0006] Optionally, the top surface of the lower mold is provided with several grooves, and the bottom surface of the pressure plate is provided with several pressure blocks of the same number as the grooves, and the several pressure blocks correspond one-to-one with the several grooves.

[0007] Specifically, the lower mold has various specifications depending on the different grooves.

[0008] Optionally, the guide telescopic rod includes a guide shaft and a guide sleeve that passes through the outside of the guide shaft. The bottom end of the guide shaft is fixedly connected to the lower stamping plate, and the top end of the guide sleeve is fixedly connected to the upper stamping plate.

[0009] Optionally, there are two pressure plates, which are spaced apart from each other. The bottom of the upper stamping plate is vertically fixed with a number of punches equal to the number of grooves. The punches are located in the gap between the two pressure plates, and the positions of the punches correspond one-to-one with the positions of the grooves.

[0010] Optionally, the four spring assemblies are arranged in pairs and correspond to the two pressure plates respectively. Each spring assembly includes a spring and a guide rod passing through the spring. The upper and lower ends of the spring are connected to the upper stamping plate and the pressure plate respectively. The bottom end of the guide rod is fixed to the pressure plate, and the upper stamping plate has four first through holes for the top end of the guide rod to pass through.

[0011] Optionally, the movable plate has four second through holes, and the positions of the four second through holes correspond one-to-one with the positions of the four first through holes.

[0012] Optionally, a U-shaped support seat and a U-shaped hinge seat are respectively provided on the left and right sides of the front end of the base plate, and a baffle is hinged on the U-shaped hinge seat.

[0013] Specifically, a micro-limit switch is provided on the right side of the U-shaped hinge seat to detect the state of the baffle. When the baffle is in the vertically open state, the micro-limit switch is in the off state, and feeding can continue to the clamping and positioning mechanism. When the baffle is in the horizontally closed state, the baffle touches the moving contact of the micro-limit switch, the micro-limit switch switches from the off state to the on state, and sends a signal to the controller to stop feeding to the clamping and positioning mechanism.

[0014] This invention also includes other components that enable the clamping and positioning mechanism for stamping metal profiles to function properly, all of which are conventional techniques in the field. Furthermore, any devices or components not specified in this invention employ conventional techniques in the field, such as hydraulic cylinders and micro-limit switches.

[0015] The working principle of this utility model is as follows: First, a suitable lower die is selected according to the specifications of the metal profile. Then, the lower die is installed on the stamping lower plate. After the metal profile is sent to the designated position on the lower die, the hydraulic cylinder is controlled to stretch the piston rod, driving the movable plate to move down, which in turn pushes the stamping upper plate down. The pressure plate is moved down by continuously compressing the spring. The top of the guide rod passes through the first through hole of the stamping upper plate and the second through hole of the movable plate. After the pressure plate moves down, the punch is used to perform cold punching on the metal profile in the lower die. After the punching is completed, the hydraulic cylinder retracts the piston rod, driving the movable plate to move up, which in turn drives the stamping upper plate to move up. While the pressure plate moves up under the buffering effect of the spring assembly, it can also prevent the metal profile from being deformed by pressure.

[0016] The beneficial effects of this utility model are that, through the base plate, top plate, movable plate, hydraulic cylinder and stamping die, not only is the positioning accurate, but also different lower dies can be replaced and installed according to different specifications of metal profiles, making it widely applicable and highly practical; in addition, the lower die can be disassembled and assembled quickly, improving production efficiency. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the positioning component of this utility model.

[0020] In the diagram: 1. Frame, 2. Base plate, 3. Top plate, 4. Movable plate, 5. Hydraulic cylinder, 6. Stamping die, 7. Support rod, 8. Lower stamping plate, 9. Lower die, 10. Pressure plate, 11. Upper stamping plate, 12. Guide telescopic rod, 13. Guide shaft, 14. Guide sleeve, 15. Spring, 16. Guide rod, 17. Groove, 18. Pressure block, 19. Punch, 20. U-shaped support seat, 21. U-shaped hinge seat, 22. Baffle, 23. Micro-motion limit switch, 24. Metal profile. Detailed Implementation

[0021] The present invention will now be clearly described with reference to the accompanying drawings and specific embodiments. This description is merely for explaining the present invention and is not intended to limit it. Any modifications, equivalent substitutions, improvements, etc., made by those skilled in the art based on the embodiments of the present invention without inventive effort to obtain all other embodiments should be included within the protection scope of the present invention.

[0022] Example

[0023] like Figure 1-2As shown, this utility model embodiment provides a clamping and positioning mechanism for metal profile stamping, including a frame 1 and a positioning assembly. The positioning assembly includes a base plate 2, a top plate 3, a movable plate 4, a hydraulic cylinder 5, and a stamping die 6. The base plate 2 is fixed on the frame 1, the top plate 3 is located above the base plate 2, and four support rods 7 are fixedly connected between the top plate 3 and the base plate 2. The movable plate 4 is located between the top plate 3 and the base plate 2, and all four support rods 7 pass through the movable plate 4. The hydraulic cylinder 5 is located above the top plate 3, and the piston rod of the hydraulic cylinder 5 passes through the top plate 3 and is fixedly connected to the movable plate 4. The stamping die 6 is located between the movable plate 4 and the base plate 2. The stamping die 6 includes a lower stamping plate 8, a lower die 9, a pressure plate 10, and an upper stamping plate 11. The lower stamping plate 8 is fixed on the base plate 2, and the lower die 9 is detachably fixed on the lower stamping plate 8 by bolts. The pressure plate 10 is located above the lower die 9, and there are two pressure plates 10. The material plates 10 are spaced apart front and rear. The upper stamping plate 11 is located above the pressure plate 10. The top of the upper stamping plate 11 is fixedly connected to the movable plate 4. Four guide telescopic rods 12 are connected between the upper stamping plate 11 and the lower stamping plate 8. The guide telescopic rod 12 includes a guide shaft 13 and a guide sleeve 14 that passes through the outside of the guide shaft 13. The bottom end of the guide shaft 13 is fixedly connected to the lower stamping plate 8. The top end of the guide sleeve 14 is fixedly connected to the upper stamping plate 11. Four spring assemblies 15 are connected between the upper stamping plate 11 and the pressure plate 10. The four spring assemblies 15 are arranged in pairs and correspond to the two pressure plates 10 respectively. Each spring assembly 15 includes a spring 15 and a guide rod 16 that passes through the spring 15. The upper and lower ends of the spring 15 are connected to the upper stamping plate 11 and the pressure plate 10 respectively. The bottom end of the guide rod 16 is fixed to the pressure plate 10. The upper stamping plate 11 has four first through holes for the top ends of the guide rods 16 to pass through.

[0024] In addition, four second through holes are provided on the movable plate 4, and the positions of the four second through holes correspond one-to-one with the positions of the four first through holes. Five grooves 17 are provided on the top surface of the lower mold 9, and five pressure blocks 18 are provided on the bottom surface of the pressure plate 10, with each pressure block 18 corresponding one-to-one with the upper and lower parts of the five grooves 17. The lower mold 9 has various specifications due to the different grooves 17. Five punches 19 are vertically fixed at the bottom of the upper stamping plate 11. All five punches 19 are located in the gap between the two pressure plates 10, and each punch 19 corresponds one-to-one with the position of the five grooves 17. U-shaped support seats 20 and U-shaped hinge seats 21 are respectively provided on the left and right sides of the front end of the base plate 2. A baffle 22 is hinged on the U-shaped hinge seat 21. A micro-motion limit switch 23 is provided on the right side of the U-shaped hinge seat 21 to detect the state of the baffle 22. When the baffle 22 is in the vertically open state, the micro-motion limit switch 23 is in the closed state, and the material can continue to be fed to the clamping and positioning mechanism. When the baffle 22 is in the horizontally closed state, the baffle 22 touches the moving contact of the micro-motion limit switch 23, the micro-motion limit switch 23 switches from the closed state to the on state, and sends a signal to the controller to stop feeding the material to the clamping and positioning mechanism.

[0025] The working principle of this utility model is as follows: First, a suitable lower mold 9 is selected according to the specifications of the metal profile 24. Then, the lower mold 9 is installed on the stamping lower plate 8. After the metal profile 24 is sent to the designated position on the lower mold 9, the hydraulic cylinder 5 is controlled to stretch the piston rod, drive the movable plate 4 to move down, and then push the stamping upper plate 11 down. The pressure plate 10 is moved down by continuously compressing the spring 15. The top of the guide rod 16 passes through the first through hole of the stamping upper plate 11 and the second through hole of the movable plate 4. After the pressure plate 10 moves down, the punch 19 is used to perform cold punching on the metal profile 24 in the lower mold 9. After the punching is completed, the hydraulic cylinder 5 retracts the piston rod, drives the movable plate 4 to move up, and at the same time drives the stamping upper plate 11 to move up. While the pressure plate 10 moves up under the buffering effect of the spring 15 assembly, it can also prevent the metal profile 24 from being deformed by pressure.

[0026] The embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A clamping and positioning mechanism for stamping metal profiles, comprising a frame and a positioning assembly, characterized in that: The positioning assembly includes a base plate, a top plate, a movable plate, a hydraulic cylinder, and a stamping die. The base plate is fixed to the frame, the top plate is located above the base plate, and four support rods are fixedly connected between the top plate and the base plate. The movable plate is located between the top plate and the base plate, and all four support rods pass through the movable plate. The hydraulic cylinder is located above the top plate, and the piston rod of the hydraulic cylinder passes through the top plate and is fixedly connected to the movable plate. The stamping die is located between the movable plate and the base plate. The stamping die includes a lower stamping plate, a lower die, a pressure plate, and an upper stamping plate. The lower stamping plate is fixed to the base plate, the lower die is fixed to the lower stamping plate by bolts, the pressure plate is located above the lower die, and the upper stamping plate is located above the pressure plate. The top of the upper stamping plate is fixedly connected to the movable plate. Four guide telescopic rods are connected between the upper stamping plate and the lower stamping plate, and four spring assemblies are connected between the upper stamping plate and the pressure plate.

2. The clamping and positioning mechanism for metal profile stamping according to claim 1, characterized in that: The top surface of the lower mold has several grooves, and the bottom surface of the pressure plate has several pressure blocks of the same number as the grooves, with each pressure block corresponding to one of the grooves.

3. The clamping and positioning mechanism for metal profile stamping according to claim 2, characterized in that: The guide telescopic rod includes a guide shaft and a guide sleeve that fits over the outside of the guide shaft. The bottom end of the guide shaft is fixedly connected to the lower stamping plate, and the top end of the guide sleeve is fixedly connected to the upper stamping plate.

4. The clamping and positioning mechanism for metal profile stamping according to claim 3, characterized in that: There are two pressure plates, which are spaced apart. The bottom of the upper stamping plate is vertically fixed with a number of punches equal to the number of grooves. The punches are located in the gap between the two pressure plates, and the positions of the punches correspond one-to-one with the positions of the grooves.

5. The clamping and positioning mechanism for metal profile stamping according to claim 4, characterized in that: The four spring assemblies are arranged in pairs and correspond to the two pressure plates respectively. Each spring assembly includes a spring and a guide rod passing through the spring. The upper and lower ends of the spring are connected to the upper stamping plate and the pressure plate respectively. The bottom end of the guide rod is fixed to the pressure plate, and the upper stamping plate has four first through holes for the top end of the guide rod to pass through.

6. The clamping and positioning mechanism for metal profile stamping according to claim 5, characterized in that: The movable plate has four second through holes, and the positions of the four second through holes correspond one-to-one with the positions of the four first through holes.

7. The clamping and positioning mechanism for metal profile stamping according to claim 6, characterized in that: The front end of the base plate is provided with a U-shaped support seat and a U-shaped hinge seat on the left and right sides respectively, and a baffle is hinged on the U-shaped hinge seat.

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