A crank forging turnover device of a die forging press
By introducing protective and tilting devices into the die forging press, the problems of slag splashing and unstable tilting during crankshaft forging are solved, achieving safe and efficient forging operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ZHEJIANG HAIDIJIA MASCH TECH CO LTD
- Filing Date
- 2024-05-14
- Publication Date
- 2026-06-19
Smart Images
Figure CN118287617B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the technical field of equipment related to forging processing, specifically to a crankshaft forging turning device for a die forging press. Background Technology
[0002] A die forging press is a piece of equipment manufactured using advanced international technology, playing a vital role in the automotive, tractor, internal combustion engine, shipbuilding, aviation, mining machinery, petroleum machinery, and hardware tool manufacturing industries. It is primarily used for batch production of large quantities of ferrous and non-ferrous metal die forgings and finishing forgings. This equipment produces forgings with high precision, high material utilization, and high productivity. It is easily automated, requires relatively low operator skill, and produces less noise and vibration. The die forging press's structure mainly includes a machine base, hydraulic system, transmission system, die frame, and molds. Its working principle involves placing the metal sheet to be processed into the mold, and then transmitting the pressure generated by the hydraulic system to the mold through the transmission system, causing the metal sheet to form the desired shape and properties under high pressure.
[0003] For example, Chinese patent CN112705662A discloses a multifunctional forging turning auxiliary device. A fixed base plate is fixedly provided on the upper end face of the rotating column. Rotating connecting columns are fixedly provided on the front and rear sides of the upper end face of the fixed base plate. Rotating cylinder shafts are rotatably provided in the rear end face of the front rotating connecting column and the front end face of the rear rotating connecting column, respectively. A rotating cylinder is fixed between the front and rear rotating cylinder shafts. A rotating rod cavity is provided through the rotating cylinder, and a rotating rod is provided in the rotating rod cavity, which can slide left and right. This invention allows forging workers to move and turn forgings with relatively simple operations. Based on the lever principle, it makes lifting forgings more effortless. It uses a motor to assist in turning the forgings. At the same time, this device is equipped with an anti-slip structure, so slippage will not occur due to the weight of the forging during operation, preventing accidents.
[0004] For example, Chinese patent CN217727025U discloses a forging turning device for forging processing. A piston rod is provided at the upper end of the hydraulic cylinder, and a processing platform is provided at the upper end of the piston rod. Connecting rods are symmetrically arranged on the front and back sides of the processing platform, and pressure plates are sleeved on the connecting rods. Mounting brackets are symmetrically arranged on the upper surface of the base plate. This forging turning device, by setting up a hydraulic cylinder and a piston rod, allows the hydraulic cylinder to control the piston rod to move up and down, thereby driving the processing platform to move up and down, thus expanding the forging turning space. Combined with the spring, it can buffer and dampen the forging during processing, thereby improving the stability of the forging during processing and achieving better processing efficiency.
[0005] However, for crankshaft forging turning devices, the turning of forgings is generally carried out during the crankshaft forging process. However, during the processing of crankshaft forgings, the forgings are first heated to a red-hot state, and then pressed down by a pressure plate to forge out the impurities of the red-hot forgings. However, the impurities are slag, which will splash outwards after being pressed down. However, for a forging turning device for forging processing in Reference Document 2, there is no protective device around the forging, which leads to injury to people caused by the slag generated during forging. As for a multi-functional forging turning auxiliary device in Reference Document 1, although it uses a motor to assist in turning the forging and the device is equipped with an anti-slip structure, it will not slip due to the weight of the forging during operation and cause accidents. However, it cannot guarantee that the forging will remain in a flat state after turning, which may result in low efficiency in forging. Therefore, a crankshaft forging turning device for a die forging press is proposed. Summary of the Invention
[0006] (a) Technical problems to be solved
[0007] To address the shortcomings of existing technologies, this invention provides a crankshaft forging turning device for a die forging press, which solves the aforementioned problems.
[0008] (II) Technical Solution
[0009] To achieve the above-mentioned objectives, the present invention provides the following technical solution: a crankshaft forging turning device for a die forging press, comprising a press, a hydraulic rod, a hydraulic sleeve, a pressure plate, and a die plate. The upper end of the inner wall of the press is fixedly connected to a vertically downward-facing hydraulic sleeve, and a hydraulic rod is movably connected inside the hydraulic sleeve, extending beyond the bottom end of the hydraulic sleeve. A support frame is fixedly connected to the bottom end of the hydraulic sleeve, and a clamping block is provided at the lower end of the support frame. The bottom end of the hydraulic rod is located inside the support frame and fixedly connected to a pressure plate. A die plate is provided at the bottom end of the inner wall of the press. The invention is characterized by further comprising:
[0010] A protective device installed in four directions on the outer wall of the support frame to protect against sparks generated during the forging of crankshaft forgings;
[0011] An adjustment device installed inside the support frame for adjusting the opening or closing of the four protective devices during rotation;
[0012] A flipping device installed on the bottom of the inner wall of the press for rotating crankshaft forgings by moving the die plate.
[0013] Preferably, the support frame is octagonal, and two connecting frames are fixedly connected to the upper end of the support frame. The two connecting frames are arranged in an L-shape and are fixedly connected to the hydraulic sleeve. A connecting plate is fixedly connected to the lower end of the support frame, and a telescopic plate is movably connected to one end of the connecting plate. A slot is provided at the lower end of the connecting plate, and a spring clamping plate is fixedly connected to the lower end of the telescopic plate. The spring clamping plate and the slot are movably engaged together, and a clamping plate is provided at the outer end of the telescopic plate.
[0014] Preferably, the clamping plate is arranged in a disc shape, and one end of the clamping plate extends into the interior of the telescopic plate. A movable disc is fixedly connected to the end of the clamping plate inside the telescopic plate. Toothed walls are provided on both sides of the inner wall of the telescopic plate corresponding to the position of the movable disc. One end of the two toothed walls is movably connected to the inner wall of the telescopic plate by a spring. Symmetrical toothed buckles are fixedly connected to both sides of the movable disc, and the toothed buckles and toothed walls can mesh with each other.
[0015] Preferably, the four protective devices include a protective outer wall, a rotating shaft, a rotating shaft, and a protective cloth. Multiple protective outer walls are fixedly connected to the upper end of the side wall of the support frame via connecting rods, and the other ends of the multiple protective outer walls gradually converge towards the middle. The other ends of the multiple protective outer walls are movably connected to a rotating shaft, and the interior of the protective outer wall is movably connected to a rotating shaft, with a protective cloth movably wound around the rotating shaft.
[0016] Preferably, the protective outer wall is arc-shaped, a through groove is provided on the side wall of the protective outer wall, and a connecting block protrudes from the rotating shaft, with one end of the connecting block fixedly connected to one end of the protective cloth.
[0017] Preferably, the adjusting device includes a second support frame, a bevel gear, a connecting bevel gear, and a second connecting rod. The lower end of the hydraulic sleeve is fixedly connected to the second support frame, and the four inner walls of the support frame are movably connected to the second connecting rod. The bevel gear is fixedly connected to one end of the second connecting rod corresponding to the inside of the support frame, and the four bevel gears mesh with each other. The second connecting rod passes through the second support frame and extends into the interior. The connecting bevel gear is fixedly connected to one end of the second connecting rod corresponding to the inside of the second support frame, and the outer end of the second connecting rod is fixedly connected to the rotating shaft.
[0018] Preferably, the second support frame is V-shaped and located between two bevel gears. The hydraulic rod passes through the second support frame and extends to the lower end. One end of the hydraulic rod corresponding to the inside of the second support frame is fixedly connected to a second tooth wall, and the second tooth wall meshes with the connecting bevel gear.
[0019] Preferably, the flipping device includes a telescopic rod, a sliding block, a second connecting shaft, and a support plate. The telescopic rod is fixedly connected to the bottom side wall of the inner wall of the press, and the sliding block is fixedly connected to the movable end of the telescopic rod. The second connecting shaft is movably inserted into the middle position of the sliding block, and the support plate is fixedly connected to the front and rear ends of the sliding block corresponding to the second connecting shaft. One end of the support plate is movably connected to the mold plate.
[0020] Preferably, a sliding groove is provided at the bottom of the press corresponding to the position of the sliding block, and the sliding groove and the sliding block are movably engaged together. A limiting groove is provided on the side wall of the bottom of the press, and one end of the limiting groove is trapezoidal. A limiting block is movably connected to one end of the support plate corresponding to the rear side of the sliding block, and the limiting block and the limiting groove are movably engaged together.
[0021] Preferably, a flipping rod is fixedly connected to the mold plate at the position between the two mold slots, and the flipping rod is L-shaped, with the upper end of the flipping rod not exceeding the mold slot.
[0022] (III) Beneficial Effects
[0023] Compared with the prior art, the present invention provides a crankshaft forging turning device for a die forging press, which has the following advantages:
[0024] 1. The crankshaft forging turning device of the die forging press is equipped with a protective device on the press. The protective device is expandable and retractable, so that it can be expanded during the forging process to block the slag generated during the forging process and prevent the slag from causing injury to people. When there is no forging process, it can be retracted to prevent the protective device from blocking the outside staff from observing the forging process of the forging.
[0025] 2. The crankshaft forging turning device of this die forging press can simultaneously control and adjust four protective devices through the adjustment device. The four second connecting rods of the four protective devices in the adjustment device rotate together through the meshing of bevel gears, which facilitates the simultaneous unfolding or retraction of the protective devices.
[0026] 3. The crankshaft forging turning device of this die forging press not only clamps the forging through the two clamping plates at the lower end of the support frame, but also ensures that the clamping plates holding the forging are stably in a planar position through the mutual meshing between the toothed teeth and the toothed walls of the two clamping plates, thus preventing the forging held by the clamping plates from being forged on an inclined surface.
[0027] 4. The crankshaft forging turning device of this die forging press is controlled by an adjusting device through a protective device. The adjusting device can be controlled according to the downward pressure of the hydraulic rod. Therefore, during the forging process, the turning device can link a series of devices to realize the unfolding of the protective device through the downward forging pressure, avoiding the need to use extra time and effort to operate the protective device, and improving the efficiency of forging.
[0028] 5. The crankshaft forging turning device of this die forging press turns the forging by using the force of the moving die plate, avoiding the traditional manual turning of the forging, reducing the steps of manual turning of the forging, and improving the efficiency of forging.
[0029] 6. The crankshaft forging turning device of this die forging press has a turning rod mounted on the die plate. Because the temperature of the forging is high, traditional manual turning of the forging requires a person to stand around the forging. However, at high temperatures, a person standing next to it may cause injury. By moving the die plate with the telescopic rod, the turning rod is used to hook the forging, thereby turning the forging and avoiding injury to the person. Attached Figure Description
[0030] Figure 1 This is a three-dimensional schematic diagram of the present invention;
[0031] Figure 2 This is a schematic diagram of the hydraulic rod protection device of the present invention;
[0032] Figure 3 This is a schematic diagram of the adjusting device of the present invention;
[0033] Figure 4 This is a schematic diagram showing the connection between the hydraulic sleeve and the support frame of the present invention;
[0034] Figure 5 This is a schematic diagram of the clamping plate of the present invention;
[0035] Figure 6 This is a schematic diagram showing the connection between the inside of the telescopic plate and the clamping plate of the present invention;
[0036] Figure 7 This is a schematic diagram of the interior of the second support frame of the present invention;
[0037] Figure 8 This is a schematic diagram of the internal structure of the support frame of the present invention;
[0038] Figure 9 This is a schematic diagram of the protective outer wall of the present invention;
[0039] Figure 10 This is a schematic diagram of the interior of the protective outer wall of the present invention;
[0040] Figure 11This is a schematic diagram of the bottom of the internal part of the press of the present invention;
[0041] Figure 12 This is a schematic diagram of the flipping device of the present invention.
[0042] In the diagram: 1. Press; 2. Hydraulic rod; 3. Hydraulic sleeve; 4. Pressure plate; 5. Mold plate; 6. Support frame; 7. Protective outer wall; 8. Rotating shaft; 9. Rotating shaft; 10. Protective cloth; 11. Through groove; 12. Connecting block; 13. Connecting plate; 14. Telescopic plate; 15. Slot; 16. Spring clip; 17. Clamping plate; 18. Movable disc; 19. Toothed wall; 20. Toothed buckle; 21. Second support frame; 22. Bevel gear; 23. Connecting bevel gear; 24. Second connecting rod; 25. Second toothed wall; 26. Telescopic rod; 27. Sliding block; 28. Second connecting shaft; 29. Support plate; 30. Sliding groove; 31. Limiting groove; 32. Limiting block; 33. Tilting rod. Detailed Implementation
[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0044] Please see Figure 1-12 A crankshaft forging turning device for a die forging press includes a press 1, a hydraulic rod 2, a hydraulic sleeve 3, a pressure plate 4, and a die plate 5. The upper end of the inner wall of the press 1 is fixedly connected to a vertically downward-facing hydraulic sleeve 3, and the hydraulic rod 2 is movably connected inside the hydraulic sleeve 3, extending beyond the bottom end of the hydraulic sleeve 3. A support frame 6 is fixedly connected to the bottom end of the hydraulic sleeve 3, and a clamping block is provided at the lower end of the support frame 6. The bottom end of the hydraulic rod 2 is located inside the support frame 6 and fixedly connected to the pressure plate 4. The die plate 5 is provided at the bottom end of the inner wall of the press 1. The device is characterized by further comprising:
[0045] A protective device is installed in four directions on the outer wall of the support frame 6 to protect against sparks generated during the forging of crankshaft forgings.
[0046] An adjustment device is installed inside the support frame 6 to adjust the opening or closing of the four protective devices during rotation.
[0047] A flipping device, installed at the bottom of the inner wall of the press 1, is used to rotate the crankshaft forging by moving the die plate 5. First, the crankshaft forging is heated until red-hot in a fire. Then, it is placed between the clamps located at the lower end of the support frame 6 on the press 1. The press 1 is then activated, causing the hydraulic rod 2 to descend. This hydraulic rod 2 drives the pressure plate 4 to press down on the crankshaft forging, aligning it with the die plate 5. During the downward pressing of the hydraulic rod 2, the adjusting device inside the support frame 6 rotates, thereby unfolding the protective device. This prevents slag from splashing during the impurity removal process of the pressure plate 4 on the forging. Finally, after one side of the forging is forged, the flipping device pushes the die plate 5 to move the other end of the die plate 5 to the lower end of the forging. During this movement, the clamped forging is flipped, avoiding the increased steps and wasted forging time associated with traditional manual rotation of the forging.
[0048] The support frame 6 is octagonal in shape, and two connecting frames are fixedly connected to the upper end of the support frame 6. The two connecting frames are arranged in an L-shape and are fixedly connected to the hydraulic sleeve 3. A connecting plate 13 is fixedly connected to the lower end of the support frame 6, and a telescopic plate 14 is movably connected to one end of the connecting plate 13. A slot 15 is provided at the lower end of the connecting plate 13, and a spring locking plate 16 is fixedly connected to the lower end of the telescopic plate 14. The spring locking plate 16 and the slot 15 are movably engaged together. Furthermore, the outer end of the telescopic plate 14 is provided with a clamping plate 17. When the forging is heated to a bright red color and needs to be placed inside the press machine 1, the forging is placed between the two clamping plates 17 and pressed into the connecting plate 13 by the spring clamping plate 16. This allows the telescopic plate 14 to be pulled inward and outward. After the forging is clamped by the clamping plate 17 at the front end of the telescopic plate 14, and the forging is stabilized, it is ejected into the slot 15 by the spring clamping plate 16 to fix it and prevent the telescopic plate 14 from moving further.
[0049] The clamping plate 17 is disc-shaped, with one end extending into the interior of the telescopic plate 14. A movable disc 18 is fixedly connected to the end of the clamping plate 17 inside the telescopic plate 14. Toothed walls 19 are provided on both sides of the inner wall of the telescopic plate 14 corresponding to the positions of the movable disc 18. One end of each toothed wall 19 is movably connected to the inner wall of the telescopic plate 14 via a spring. Symmetrical toothed buckles 20 are fixedly connected to both sides of the movable disc 18, and these buckles 20 can mesh with the toothed walls 19. When the clamping plate 17 stably clamps the forging, and it needs to be flipped, the flipping rod 33 presses down, causing one end of the forging to press down, thus flipping the forging. After flipping, the forging is further flipped due to the resistance and movement of the flipping rod 33. After flipping 180°... The flipping rod 33 will disengage from the forging, and after the forging flips, it will drive the clamping plate 17 to rotate. When one end of the clamping plate 17 is pressed down by an external force to rotate, the toothed buckle 20 in the internal movable disc 18 will squeeze the toothed wall 19 on one side, causing the toothed wall 19 to be squeezed outward, so that the toothed wall 19 and the toothed buckle 20 are separated, completing the rotation. After flipping once, one end of the toothed buckle 20 is squeezed upward. After the toothed buckle 20 is squeezed between the two toothed walls 19, it is fixed. At this time, the lower end of the forging also disengages from the resistance of the flipping rod 33 and loses the external force. Through the meshing between the toothed wall 19 and the toothed buckle 20, the forging will rotate in parallel, while the pressure plate 4 is pressed down as a whole, so that the pressure of the forging will not be in an unbalanced state. Therefore, the forging is still in a flat state and is stably fixed.
[0050] The four protective devices include a protective outer wall 7, a rotating shaft 8, a rotating shaft 9, and a protective cloth 10. Multiple protective outer walls 7 are fixedly connected to the upper side wall of the support frame 6 via connecting rods. The other ends of the multiple protective outer walls 7 gradually converge towards the middle. The other ends of the multiple protective outer walls 7 are movably connected to the rotating shaft 8. The rotating shaft 9 is movably connected inside the protective outer wall 7. The protective cloth 10 is movably wound on the rotating shaft 9.
[0051] The protective outer wall 7 is arc-shaped, and a through groove 11 is provided on the side wall of the protective outer wall 7. A connecting block 12 protrudes from the rotating shaft 8, and one end of the connecting block 12 is fixedly connected to one end of the protective cloth 10. After the second connecting rod 24 in the adjusting device rotates, it drives the rotating shaft 8 to rotate. The rotating shaft 8 drives the protective cloth 10 to rotate and pull through the connecting block 12, so that the protective cloth 10 extends out of the through groove 11. By rotating the rotating shaft 8, the protective cloth 10 is unfolded along the outer end of the protective outer wall 7. The multiple protective outer walls 7 are equivalent to supporting the protective cloth 10, so that the protective cloth 10 forms an arc-shaped protective cover from the outer end of the protective outer wall 7. After the second connecting rod 24 rotates, the protective cover will unfold to wrap the forging and prevent the slag that splashes out of the forging during the forging process from being released and causing injury to people.
[0052] The adjusting device includes a second support frame 21, a bevel gear 22, a connecting bevel gear 23, and a second connecting rod 24. The lower end of the hydraulic sleeve 3 is fixedly connected to the second support frame 21, and the four inner walls of the support frame 6 are movably connected to the second connecting rod 24. The bevel gear 22 is fixedly connected to one end of the second connecting rod 24 corresponding to the inside of the support frame 6, and the four bevel gears 22 mesh with each other. The second connecting rod 24 passes through the second support frame 21 and extends into the interior. The connecting bevel gear 23 is fixedly connected to one end of the second connecting rod 24 corresponding to the inside of the second support frame 21, and the outer end of the second connecting rod 24 is fixedly connected to the rotating shaft 8.
[0053] The second support frame 21 is V-shaped and located between two bevel gears 22. The hydraulic rod 2 passes through the second support frame 21 and extends to its lower end. One end of the hydraulic rod 2, corresponding to the interior of the second support frame 6, is fixedly connected to a second toothed wall 25, which meshes with the connecting bevel gear 23. After the forging is clamped and ready for forging, the hydraulic rod 2 moves downward by pressing it down. The hydraulic rod 2 passes through the second support frame 21 and the support frame 6. A [missing information - likely a device or component] is mounted on the hydraulic rod 2. During its downward movement, the second toothed wall 25 rubs against the connecting bevel gear 23, causing the connecting bevel gear 23 to rotate. The rotation of the connecting bevel gear 23 drives the second connecting rod 24 to rotate, which in turn drives the bevel gear 22 to rotate. The four bevel gears 22 on the inner wall of the support frame 6 mesh with each other, so that the rotation of one bevel gear 22 drives the other three bevel gears 22 to rotate, thereby causing the other three second connecting rods 24 to rotate together.
[0054] The flipping device includes a telescopic rod 26, a sliding block 27, a second connecting shaft 28, and a support plate 29. The telescopic rod 26 is fixedly connected to the bottom side wall of the inner wall of the press 1, and the sliding block 27 is fixedly connected to the movable end of the telescopic rod 26. The second connecting shaft 28 is movably inserted into the middle position of the sliding block 27, and the support plate 29 is fixedly connected to the front and rear ends of the second connecting shaft 28 corresponding to the sliding block 27. One end of the support plate 29 is movably connected to the mold plate 5.
[0055] A sliding groove 30 is provided at the bottom of the press 1 corresponding to the position of the sliding block 27, and the sliding groove 30 and the sliding block 27 are movably engaged together. A limiting groove 31 is provided on the side wall of the bottom of the press 1, and one end of the limiting groove 31 is set in a trapezoidal shape. A limiting block 32 is movably connected to the end of the support plate 29 corresponding to the rear side of the sliding block 27, and the limiting block 32 and the limiting groove 31 are movably engaged together.
[0056] A flipping rod 33 is fixedly connected to the mold plate 5 at the position between the two mold slots. The flipping rod 33 is L-shaped and its upper end does not exceed the mold slot. After the forging is forged on one side, the sliding block 27 moves in the sliding groove 30 by the extension and retraction of the telescopic rod 26. A support plate 29 is mounted on the second connecting shaft 28 in the sliding block 27. Therefore, during the movement of the sliding block 27, the support plate 29 will drive the mold plate 5 to move, thereby moving the other side of the mold plate 5 to the lower end of the forging. However, during the movement of the sliding block 27, the limiting position of the rear end of the support plate 29 is utilized. Block 32 moves within the limiting groove 31, causing the second connecting shaft 28 to rotate as it passes through the inclined trapezoidal surface in the limiting groove 31. This causes the support plate 29 to change angle, while the front and rear support plates 29 remain fixed. As the limiting groove 31 changes, the front support plate 29 drives the mold plate 5 to change angle, thus changing the mold plate 5's position in the up, down, left, and right directions. During the movement, the mold plate 5 drives the flipping rod 33 to hook onto the forging. After flipping, the top of the flipping rod 33 resists the forging.
[0057] Working principle: First, the crankshaft forging is heated until red-hot in a fire. Then, the crankshaft forging is placed between the clamps located at the lower end of the support frame 6 on the press 1. Subsequently, the press 1 is started, causing the hydraulic rod 2 to descend. The hydraulic rod 2 drives the pressure plate 4 to press down on the crankshaft forging, aligning the crankshaft forging with the position of the mold plate 5. This allows the crankshaft forging to be forged according to the shape of the mold plate 5. During the pressing process of the hydraulic rod 2, the adjusting device inside the support frame 6 is rotated. The rotation of the adjusting device drives the protective device to unfold, preventing slag from splashing during the impurity removal process of the pressure plate 4 on the forging. Finally, after one side of the forging is forged, the mold plate 5 is moved by the flipping device, moving the other end of the mold plate 5 to the lower end of the forging. During the movement, the clamped forging is flipped, avoiding the increase in steps and wasted forging time caused by the traditional manual rotation of the forging.
[0058] When the forging is heated to a bright red color and needs to be placed inside the press 1, the forging is placed between two clamping plates 17 and pressed into the connecting plate 13 by the spring clamping plate 16. The telescopic plate 14 can be pulled to extend and retract inward and outward. After the forging is clamped by the clamping plate 17 at the front end of the telescopic plate 14, and after the forging is clamped and stabilized, the spring clamping plate 16 pops out into the slot 15 to fix it and prevent the telescopic plate 14 from moving further.
[0059] After the forging is clamped and ready for forging, the hydraulic rod 2 is pressed down to move it downward. The hydraulic rod 2 passes through the second support frame 21 and the support frame 6. The hydraulic rod 2 is equipped with a second toothed wall 25. During the downward movement, the second toothed wall 25 will rub against the connecting bevel gear 23, causing the connecting bevel gear 23 to rotate. The rotation of the connecting bevel gear 23 drives the second connecting rod 24 to rotate, thereby driving the bevel gear 22 to rotate. The four bevel gears 22 on the inner wall of the support frame 6 mesh with each other, so that the rotation of one bevel gear 22 drives the other three bevel gears 22 to rotate, thereby causing the other three second connecting rods 24 to rotate together.
[0060] After the second connecting rod 24 in the adjusting device rotates, it drives the rotating shaft 8 to rotate. The rotating shaft 8 drives the protective cloth 10 to rotate and pull through the connecting block 12, so that the protective cloth 10 extends out of the through groove 11. With the rotation of the rotating shaft 8, the protective cloth 10 forms an arc-shaped protective cover from the outer protective wall 7. Thus, after the second connecting rod 24 rotates, the protective cover will unfold to wrap the forging and prevent the slag that splashes out of the forging during the forging process from being released and causing injury to people.
[0061] After the forging is forged on one side, the extension and retraction of the telescopic rod 26 causes the sliding block 27 to move in the sliding groove 30. A support plate 29 is mounted on the second connecting shaft 28 of the sliding block 27. Therefore, during the movement of the sliding block 27, the support plate 29 drives the mold plate 5 to move, thereby moving the other side of the mold plate 5 to the lower end of the forging. However, during the movement of the sliding block 27, the limiting block 32 at the rear end of the support plate 29 moves in the limiting groove 31, limiting the movement of the limiting block 32 after passing through the limiting groove. When the groove 31 passes through the inclined trapezoidal surface, the second connecting shaft 28 will rotate, causing the support plate 29 to change angle. The front and rear support plates 29 are fixed. As the upper limit block 32 of the support plate 29 changes with the limit groove 31, the front support plate 29 drives the mold plate 5 to change with the angle, thereby changing the position of the mold plate 5 in the up, down, left and right. During the movement, the mold plate 5 drives the flipping rod 33 to hook the forging. After flipping, the top of the flipping rod 33 resists the forging.
[0062] Once the clamping plate 17 has stabilized the forging, when it needs to be flipped, the flipping rod 33 presses down, causing one end of the forging to press down, thus flipping the forging. After flipping, the forging is further flipped due to the resistance and movement of the flipping rod 33. After flipping 180°, the flipping rod 33 will release its resistance to the forging, and the forging will then cause the clamping plate 17 to rotate. When one end of the clamping plate 17 is pressed down by an external force to rotate, the teeth 20 in the internal movable disc 18 will press against the toothed wall 19 on one side, causing it to... The toothed wall 19 is pressed outward, causing it to disengage from the toothed buckle 20, thus completing the rotation. After one rotation, one end of the toothed buckle 20 is pressed upward, and it is fixed after being pressed between the two toothed walls 19. At this time, the lower end of the forging is also freed from the resistance of the flipping rod 33 and loses the external pressure. Through the meshing between the toothed wall 19 and the toothed buckle 20, the forging will rotate in parallel, while the pressure plate 4 is pressed down as a whole, so that the pressure of the forging will not be unbalanced. Therefore, the forging remains in a flat state and is stably fixed.
[0063] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A crankshaft forging turning device for a die forging press, comprising a press (1), a hydraulic rod (2), a hydraulic sleeve (3), a pressure plate (4), and a die plate (5), wherein the upper end of the inner wall of the press (1) is fixedly connected to a vertically downward hydraulic sleeve (3), and the hydraulic rod (2) is movably connected inside the hydraulic sleeve (3), and the hydraulic rod (2) extends out of the bottom end of the hydraulic sleeve (3), and the bottom end of the hydraulic sleeve (3) is fixedly connected to a support frame (6), and a clamping block is provided at the lower end of the support frame (6), and the bottom end of the hydraulic rod (2) is fixedly connected to the pressure plate (4) inside the support frame (6), and the bottom end of the inner wall of the press (1) is provided with a die plate (5), characterized in that, It also includes: A protective device is installed in four directions on the outer wall of the support frame (6) to protect against sparks generated during the forging of crankshaft forgings; An adjustment device is installed inside the support frame (6) for adjusting the opening or closing of the four protective devices; A flipping device is installed on the bottom of the inner wall of the press (1) for rotating the crankshaft forging by moving the mold plate (5); The flipping device includes a telescopic rod (26), a sliding block (27), a second connecting shaft (28), and a support plate (29). The telescopic rod (26) is fixedly connected to the bottom side wall of the inner wall of the press (1), and the sliding block (27) is fixedly connected to the movable end of the telescopic rod (26). The second connecting shaft (28) is movably inserted into the middle position of the sliding block (27), and the support plate (29) is fixedly connected to the front and rear ends of the second connecting shaft (28) corresponding to the sliding block (27). One end of the support plate (29) is movably connected to the mold plate (5). The mold plate (5) is fixedly connected with a flipping rod (33) at the position between the two mold slots, and the flipping rod (33) is L-shaped and the upper end of the flipping rod (33) does not exceed the mold slot.
2. The crankshaft forging turning device of a die forging press according to claim 1, characterized in that: The support frame (6) is octagonal, and two connecting frames are fixedly connected to the upper end of the support frame (6). The two connecting frames are arranged in an L-shape, and the connecting frames are fixedly connected to the hydraulic sleeve (3). A connecting plate (13) is fixedly connected to the lower end of the support frame (6). A telescopic plate (14) is movably connected to one end of the connecting plate (13). A slot (15) is opened at the lower end of the connecting plate (13). A spring plate (16) is fixedly connected to the lower end of the telescopic plate (14). The spring plate (16) and the slot (15) are movably engaged together. A clamping plate (17) is provided at the outer end of the telescopic plate (14).
3. The crankshaft forging turning device of a die forging press according to claim 2, characterized in that: The clamp (17) is arranged in a disc shape, and one end of the clamp (17) extends into the interior of the telescopic plate (14). The end of the clamp (17) located inside the telescopic plate (14) is fixedly connected to a movable disc (18). Toothed walls (19) are provided on both sides of the inner wall of the telescopic plate (14) corresponding to the position of the movable disc (18). One end of the two toothed walls (19) is movably connected to the inner wall of the telescopic plate (14) by a spring. Symmetrical toothed buckles (20) are fixedly connected on both sides of the movable disc (18), and the toothed buckles (20) and the toothed walls (19) can mesh with each other.
4. The crankshaft forging turning device of a die forging press according to claim 1, characterized in that: The four protective devices include a protective outer wall (7), a rotating shaft (8), a rotating shaft (9), and a protective cloth (10). Multiple protective outer walls (7) are fixedly connected to the upper side wall of the support frame (6) by a connecting rod. The other ends of the multiple protective outer walls (7) gradually converge towards the middle. The other ends of the multiple protective outer walls (7) are movably connected to the rotating shaft (8). The interior of the protective outer wall (7) is movably connected to the rotating shaft (9). The protective cloth (10) is movably wound on the rotating shaft (9).
5. The crankshaft forging turning device of a die forging press according to claim 4, characterized in that: The protective outer wall (7) is arc-shaped. A through groove (11) is provided on the side wall of the protective outer wall (7), and a connecting block (12) protrudes from the rotating shaft (8). One end of the connecting block (12) is fixedly connected to one end of the protective cloth (10).
6. The crankshaft forging turning device of a die forging press according to claim 4, characterized in that: The adjustment device includes a second support frame (21), a bevel gear (22), a connecting bevel gear (23), and a second connecting rod (24). The lower end of the hydraulic sleeve (3) is fixedly connected to the second support frame (21), and the four inner walls of the support frame (6) are movably connected to the second connecting rod (24). The bevel gear (22) is fixedly connected to one end of the second connecting rod (24) corresponding to the inside of the support frame (6), and the four bevel gears (22) mesh together. The second connecting rod (24) passes through the second support frame (21) and extends into the interior. The connecting bevel gear (23) is fixedly connected to one end of the second connecting rod (24) corresponding to the inside of the second support frame (21), and the outer end of the second connecting rod (24) is fixedly connected to the rotating shaft (8).
7. The crankshaft forging turning device of a die forging press according to claim 6, characterized in that: The second support frame (21) is V-shaped and is located between two bevel gears (22). The hydraulic rod (2) passes through the second support frame (21) and extends to the lower end. The hydraulic rod (2) is fixedly connected to a second tooth wall (25) at one end inside the second support frame (21). The second tooth wall (25) meshes with the connecting bevel gear (23).
8. The crankshaft forging turning device of a die forging press according to claim 1, characterized in that: The press (1) has a sliding groove (30) at the bottom of the interior corresponding to the position of the sliding block (27), and the sliding groove (30) and the sliding block (27) are movably engaged together. The press (1) has a limiting groove (31) on the side wall of the bottom of the interior, and one end of the limiting groove (31) is set in a trapezoidal shape. The support plate (29) is movably connected to a limiting block (32) at the rear end of the sliding block (27), and the limiting block (32) and the limiting groove (31) are movably engaged together.