Stroke conversion device of pull-down type punching machine

Abstract

The invention provides a stroke conversion device of a pull-down type punching machine. The stroke conversion device of the pull-down type punching machine comprises a box plate, a cavity is formed in the box plate, the stroke conversion device is located in the cavity, and the stroke conversion device comprises a lower side supporting plate, an upper side supporting plate, a hydraulic rod, a hydraulic cylinder and an adjusting assembly; the adjusting assembly comprises a lower side box body, an upper side box body, a storage box, an extrusion cavity, a supporting column, a flowing hole and a transferring assembly. According to the stroke conversion device of the pull-down type punching machine, the cavity is filled with the non-Newtonian fluid, the stability during slow height movement can be effectively achieved, the non-Newtonian fluid shows good fluidity when subjected to slow or constant pressure, it is ensured that the device can stably adjust the height, and the service life of the device is prolonged. Due to the characteristic, when an operator adjusts the stroke of the punching machine, different machining requirements can be met more flexibly, and the operator does not need to worry about the stability of the device.

Description

Technical Field

[0001] The invention relates to the technical field of stroke conversion devices, in particular to a stroke conversion device for a pull-down punch press. Background Art

[0002] The stroke conversion device of the pull-down punch press usually consists of the following main parts: The drive mechanism usually uses an electric motor as the power source, and the driver is connected to the punch through a transmission belt or gear. The rotation of the motor is converted into the up and down movement of the punch. The transmission mechanism The transmission system is responsible for converting the rotational motion generated by the motor into the linear motion of the punch. This part often includes components such as connecting rods, gears, and chains to ensure that the punch can run smoothly on the set path. Stroke adjustment mechanism This mechanism is used to adjust the movement stroke of the punch to meet different processing requirements. Usually, an adjustable block or thread adjustment device is used to change the stroke length of the punch to achieve different stamping effects. The control system includes buttons, sensors, and controllers to monitor the working status and stroke settings of the punch. Modern punch presses may also be equipped with PLC (programmable logic controller) to achieve more sophisticated control. The working principle of the device is to drive the transmission mechanism through the motor drive so that the punch moves up and down according to the preset stroke. The stroke adjustment mechanism flexibly adjusts the stroke of the punch according to the needs of different process requirements, thereby realizing the stamping of different materials.

[0003] Although this stroke conversion device has good basic functions, it still has some defects in practical applications: Poor adaptability: The traditional stroke conversion device cannot quickly adjust to different processing requirements when facing a variety of materials and processes. For small-batch, multi-variety production environments, this inflexibility will lead to low production efficiency. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention provides a stroke conversion device for a pull-down punch press, which solves the problem of poor adaptability and inability to quickly adjust to different processing requirements.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a stroke conversion device for a pull-down punch press, comprising: A box plate, wherein the interior of the box plate forms a chamber; The stroke conversion device is located inside the chamber, and the stroke conversion device includes a lower support plate, an upper support plate, a hydraulic rod, a hydraulic cylinder and an adjustment assembly; The regulating assembly includes a lower box body, an upper box body, a storage box, an extrusion cavity, a support column, a flow hole and a transfer assembly; A fixing frame is fixedly connected to the upper surface of the upper support plate, a movable sleeve is fixedly connected to the upper side of the fixing frame, and a punch is fixedly connected to the output end of the power device.

[0006] Preferably, a support leg is fixedly connected to the lower surface of the box plate, a bolt is threadedly connected to the inner side of the support leg, and a support foot is threadedly connected to the lower side of the bolt.

[0007] Preferably, the hydraulic cylinder is fixedly connected to the inner surface of the box plate, the upper surface of the box plate is fixedly connected to the stroke conversion device, the upper surface of the lower support plate is fixedly connected to the hydraulic rod, and the output end of the hydraulic rod is fixedly connected to the upper support plate.

[0008] Preferably, the upper box body is slidably connected to the lower box body, the extrusion cavity is slidably connected to the lower box body, the upper surface of the extrusion cavity is fixedly connected to the support column, and the upper end of the support column is fixedly connected to the top inner wall of the upper box body. Preferably, the flow hole is located on the lower side of the upper box body, the support column passes through the flow hole, the bottom inner wall of the storage box is provided with an electromagnetic valve and extends to the interior of the upper box body, the storage box is fixedly connected to the upper surface of the upper box body, and the interior of the cavity is filled with non-Newtonian fluid.

[0009] Preferably, the adjustment assembly further comprises a cavity and a rib plate, wherein the cavity is located inside the storage box, and both ends of the rib plate are fixedly connected to the inner surface of the storage box.

[0010] Preferably, the transfer assembly includes an electric telescopic rod, a movable sleeve, an actuating plate, a movable hole and a lower side hole, the output end of the transfer assembly is fixedly connected to the actuating plate, the movable sleeve is fixedly connected to the bottom inner wall of the upper side box, the lower side hole is located on the side surface of the movable sleeve, the movable hole is located on the movable sleeve, the actuating plate is slidingly connected to the movable sleeve, the upper surfaces of the movable sleeve and the actuating plate are respectively provided with a first opening and a second opening, the interiors of the first opening and the second opening are both provided with a limiting flow assembly, the limiting flow assembly includes a first opening, a rib plate and a second hard plate, and the rotating shaft on the left is respectively rotatably connected to the first hard plate and the limiting flow assembly.

[0011] Preferably, the upper surface of the box plate is fixedly connected to a lower side plate, the upper surface of the lower side plate is fixedly connected to a support platform, and the upper surface of the support platform is provided with a fixing platform.

[0012] The present invention provides a stroke conversion device for a pull-down punch press, which has the following beneficial effects: The stroke conversion device of the pull-down punch press adopts non-Newtonian fluid to fill the cavity, which can effectively achieve stability when slowly moving the height. The non-Newtonian fluid exhibits good fluidity when subjected to slow or constant pressure, ensuring that the device can smoothly adjust the height. This feature allows the operator to more flexibly adapt to different processing requirements when adjusting the punch stroke without worrying about the stability of the device.

[0013] In addition, when the device is subjected to severe impact, the characteristics of non-Newtonian fluid make it exhibit higher compressive strength and can quickly become viscous to prevent the displacement of the fluid. This reaction not only effectively protects the internal structure of the device and avoids damage caused by impact, but also enhances the safety of the overall system. The device can still maintain a good working condition under high-intensity impact, thereby extending its service life and reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the structure enlargement in the middle; Figure 3 For the present invention Figure 1 A magnified schematic diagram of the structure at B in the middle; Figure 4 It is a schematic diagram of the structure of the regulating component of the present invention; Figure 5 It is a schematic diagram of the internal structure of the regulating component of the present invention; Figure 6 It is a schematic diagram of the transfer assembly structure of the present invention; Figure 7 It is a schematic diagram of the structure of the current limiting component of the present invention.

[0015] Among them, 1. box plate; 2. support leg; 3. bolt; 4. support foot; 5. stroke conversion device; 6. lower support plate; 7. upper support plate; 8. hydraulic rod; 9. hydraulic cylinder; 10. adjustment component; 11. lower box body; 12. upper box body; 13. storage box; 14. extrusion cavity; 15. support column; 16. flow hole; 17. rib plate; 18. cavity; 19. transfer component; 20. electric telescopic rod; 21. movable sleeve; 22. actuator plate; 23. movable hole; 24. lower side hole; 25. first opening; 26. rotating shaft; 27. first hard plate; 28. current limiting component; 29. ​​second opening; 30. second hard plate; 31. fixed frame; 32. power device; 33. punch; 34. lower side plate; 35. support platform; 36. fixed platform; 37. electromagnetic valve. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] like Figure 1-7 As shown, an embodiment of the present invention provides a stroke conversion device for a pull-down punch press, comprising a box plate 1, a chamber is formed inside the box plate 1, a support leg 2 is fixedly connected to the lower surface of the box plate 1, a bolt 3 is threadedly connected to the inner side of the support leg 2, and a support foot 4 is threadedly connected to the lower side of the bolt 3; The stroke conversion device 5 is located inside the chamber. The stroke conversion device 5 includes a lower support plate 6, an upper support plate 7, a hydraulic rod 8, a hydraulic cylinder 9 and an adjustment assembly 10. The hydraulic cylinder 9 is fixedly connected to the inner surface of the box plate 1, the upper surface of the box plate 1 is fixedly connected to the stroke conversion device 5, the upper surface of the lower support plate 6 is fixedly connected to the hydraulic rod 8, the output end of the hydraulic rod 8 is fixedly connected to the upper support plate 7, the upper box body 12 is slidably connected to the lower box body 11, the extrusion cavity 14 is slidably connected to the lower box body 11, and the upper surface of the extrusion cavity 14 is connected to the support column 15. The upper end of the support column 15 is fixedly connected to the top inner wall of the upper box body 12, the flow hole 16 is located on the lower side of the upper box body 12, the support column 15 passes through the flow hole 16, the bottom inner wall of the storage box 13 is provided with an electromagnetic valve 37 and extends to the interior of the upper box body 12, the storage box 13 is fixedly connected to the upper surface of the upper box body 12, the adjustment component 10 also includes a cavity 18 and a rib 17, the cavity 18 is located inside the storage box 13, both ends of the rib 17 are fixedly connected to the inner surface of the storage box 13, and the interior of the cavity 18 is filled with a non-Newtonian fluid; The regulating assembly 10 includes a lower box body 11, an upper box body 12, a storage box 13, an extrusion cavity 14, a support column 15, a flow hole 16 and a transfer assembly 19. The transfer assembly 19 includes an electric telescopic rod 20, a movable sleeve 21, an actuating plate 22, a movable hole 23 and a lower hole 24. The output end of the transfer assembly 19 is fixedly connected to the actuating plate 22, the movable sleeve 21 is fixedly connected to the bottom inner wall of the upper box body 12, the lower hole 24 is located on the side surface of the movable sleeve 21, the movable hole 23 is located on the movable sleeve 21, the actuating plate 22 is slidably connected to the movable sleeve 21, and the upper surfaces of the movable sleeve 21 and the actuating plate 22 are respectively provided with a first opening 25 and a second opening 29. The first opening 25 and the second opening 29 are both provided with a flow limiting assembly 28. The flow limiting assembly 28 includes a first opening 25, a rib plate 17 and a second hard sheet 30. The left rotating shaft 26 is rotatably connected to the first hard sheet 27 and the flow limiting assembly 28 respectively. The upper surface of the upper support plate 7 is fixedly connected to a fixing frame 31, the upper side of the fixing frame 31 is fixedly connected to a movable sleeve 21, the output end of the power device 32 is fixedly connected to a punch 33, the upper surface of the box plate 1 is fixedly connected to a lower side plate 34, the upper surface of the lower side plate 34 is fixedly connected to a supporting platform 35, and the upper surface of the supporting platform 35 is provided with a fixing platform 36.

[0018] Working principle: A stroke conversion device 5 is set in the chamber formed by the box plate 1. The hydraulic cylinder 9 is fixed on the inner surface of the box plate 1, connecting the lower support plate 6 and the upper support plate 7. The output end of the hydraulic rod 8 is connected to the upper support plate 7, forming a complete support and movement. The hydraulic cylinder 9 drives the hydraulic rod 8 to move up and down through the flow and pressure change of the hydraulic oil. When the operator adjusts the hydraulic system through the control panel, the hydraulic oil is transported to the hydraulic cylinder 9, causing the pressure in the cylinder to change, thereby pushing the hydraulic rod 8 up and down. The movement of the hydraulic rod 8 directly affects the height of the upper support plate 7, enabling it to achieve a stroke. The hydraulic system can realize the adjustment of different heights to meet various processing requirements during the working process. The adjusting component 10 is filled with non-Newtonian fluid. When a slow or constant pressure is applied, the fluid can flow freely, provide stable support, and ensure the smooth movement of the upper support plate 7. However, when subjected to a strong impact, the fluid will quickly become viscous to prevent fluid displacement and ensure the safety and stability of the device. The design of the flow hole 16 and the support column 15 ensures the smooth flow of the liquid under low pressure conditions. The transfer component 19 uses the electric telescopic rod 20 and the actuator plate 22 to make the non-Newtonian fluid The device can be moved upward to enable the device to quickly respond to operating instructions and achieve precise height adjustment. The sliding connection between the actuating plate 22 and the movable sleeve 21 allows flexible movement, so that the device can be fine-tuned as needed during operation. The fixed frame 31 is connected to the punch 33, and the necessary punching power is provided by the power device 32. The upper surface of the entire device is fixedly connected to the lower side plate 34 and the support platform 35 to ensure good stability and support capacity during operation. The entire system realizes efficient and smooth punch stroke conversion through hydraulic control and the characteristics of non-Newtonian fluids. During the processing, the device can be quickly and slowly Flexible switching between slow and fast adjustments can meet different processing requirements and avoid damage caused by impact. When the electric telescopic rod 20 is extended, the non-Newtonian fluid flows from the second opening 29 to the upper side of the actuating plate 22. When the electric telescopic rod 20 is shortened, the non-Newtonian fluid enters the interior of the movable sleeve 21 from the lower hole 24. The non-Newtonian fluid on the upper side of the actuating plate 22 enters the interior of the cavity 18 through the first opening 25. When it is necessary to add non-Newtonian fluid to the interior of the upper box 12, the electromagnetic valve 37 can be opened, and then the fluid flows into the lower side of the upper box 12. When a rapid impact occurs, the lower side of the upper box 12 is buffered.

[0019] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stroke conversion device for a pull-down punch press, characterized in that: include: A box plate (1), wherein a chamber is formed inside the box plate (1); A stroke conversion device (5) is located inside the chamber, and the stroke conversion device (5) comprises a lower support plate (6), an upper support plate (7), a hydraulic rod (8), a hydraulic cylinder (9) and an adjustment assembly (10); The regulating assembly (10) comprises a lower box body (11), an upper box body (12), a storage box (13), an extrusion cavity (14), a support column (15), a flow hole (16) and a transfer assembly (19); A fixing frame (31) is fixedly connected to the upper surface of the upper support plate (7), a movable sleeve (21) is fixedly connected to the upper side of the fixing frame (31), and a punch (33) is fixedly connected to the output end of the power device (32).

2. The stroke conversion device of a pull-down punch press according to claim 1, characterized in that: The lower surface of the box plate (1) is fixedly connected to a support leg (2), the inner part of the support leg (2) is threadedly connected to a bolt (3), and the lower side of the bolt (3) is threadedly connected to a support foot (4).

3. The stroke conversion device of a pull-down punch press according to claim 1, characterized in that: The hydraulic cylinder (9) is fixedly connected to the inner surface of the box plate (1), the upper surface of the box plate (1) is fixedly connected to the stroke conversion device (5), the upper surface of the lower support plate (6) is fixedly connected to the hydraulic rod (8), and the output end of the hydraulic rod (8) is fixedly connected to the upper support plate (7).

4. The stroke conversion device of a pull-down punch press according to claim 3, characterized in that: The upper box body (12) is slidably connected to the lower box body (11), the extrusion cavity (14) is slidably connected to the lower box body (11), the upper surface of the extrusion cavity (14) is fixedly connected to the support column (15), and the upper end of the support column (15) is fixedly connected to the top inner wall of the upper box body (12).

5. The stroke conversion device of a pull-down punch press according to claim 4, characterized in that: The flow hole (16) is located at the lower side of the upper box body (12), the support column (15) passes through the flow hole (16), the bottom inner wall of the storage box (13) is provided with an electromagnetic valve (37) and extends to the interior of the upper box body (12), and the storage box (13) is fixedly connected to the upper surface of the upper box body (12).

6. The stroke conversion device of a pull-down punch press according to claim 5, characterized in that: The regulating assembly (10) further comprises a cavity (18) and a rib (17); the cavity (18) is located inside the storage box (13); both ends of the rib (17) are fixedly connected to the inner surface of the storage box (13); and the interior of the cavity (18) is filled with a non-Newtonian fluid.

7. The stroke conversion device of a pull-down punch press according to claim 1, characterized in that: The transfer assembly (19) comprises an electric telescopic rod (20), a movable sleeve (21), an actuating plate (22), a movable hole (23) and a lower hole (24); the output end of the transfer assembly (19) is fixedly connected to the actuating plate (22); the movable sleeve (21) is fixedly connected to the bottom inner wall of the upper box body (12); the lower hole (24) is located on the side surface of the movable sleeve (21); the movable hole (23) is located on the movable sleeve (21); the actuating plate (22) is fixedly connected to the movable sleeve (21); The movable sleeve (21) is slidably connected, and the upper surfaces of the movable sleeve (21) and the actuating plate (22) are respectively provided with a first opening (25) and a second opening (29), and the first opening (25) and the second opening (29) are both provided with a flow limiting component (28) inside, and the flow limiting component (28) comprises the first opening (25), a rib plate (17) and a second hard plate (30), and the left side rotating shaft (26) is respectively rotatably connected with the first hard plate (27) and the flow limiting component (28).

8. The stroke conversion device of a pull-down punch press according to claim 1, characterized in that: The upper surface of the box plate (1) is fixedly connected to a lower side plate (34), the upper surface of the lower side plate (34) is fixedly connected to a support platform (35), and the upper surface of the support platform (35) is provided with a fixing platform (36).

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