Hot die forging press with lubricating oil detecting and supplying functions

Abstract

The invention discloses a hot die forging press with a lubricating oil detecting and supplying function, and relates to the technical field of hot die forging presses, the hot die forging press comprises a mounting frame, a forging and pressing unit, a detecting unit and a controller, the mounting frame is used for mounting and fixing the forging and pressing unit, the detecting unit and the controller, and the forging and pressing unit is used for forging and pressing forgings; the detection unit is used for liquid level detection and automatic supply of lubricating oil, the controller is used for controlling opening and closing of the forging unit and the detection unit, and when forging is needed, the controller controls the forging unit to start to hammer the forging and controls the detection unit to spray the lubricating oil to the surface of the forging to form an oil film to protect the forging. And when the detection unit detects that the lubricating oil is insufficient, the lubricating oil is automatically supplied, and the situation that the forging cannot be lubricated due to the insufficient lubricating oil, and the forging quality is affected is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of hot die forging presses, in particular to a hot die forging press with a lubricating oil detection and replenishment function. Background Art

[0002] Hot die forging presses occupy a vital position in modern industrial production and are widely used in many fields such as automobile manufacturing, aerospace, mechanical equipment, etc. It uses strong pressure to forge heated metal blanks into forgings with complex shapes and high precision requirements, greatly improving production efficiency and product quality.

[0003] During the forging process, traditional hot die forging presses usually only focus on the lubrication of the equipment itself, while ignoring the protection of forgings. Under the high temperature and high pressure forging environment, forgings are prone to adhesion to the die, which not only affects the surface quality of the forgings, but also may cause difficulty in demolding and increase production costs. At present, the replenishment of lubricating oil often relies on manual operation or simple timing devices, which easily leads to untimely replenishment of lubricating oil. When the equipment runs for a long time or under high load working conditions, the lubricating oil will gradually be consumed. If it cannot be replenished in time, the forgings and friction parts will not be fully lubricated, thereby aggravating wear. Forgings that lack lubrication protection are more likely to produce defects such as cracks during the forging process, reducing the qualified rate of products. Summary of the invention

[0004] The object of the present invention is to provide a hot die forging press with a lubricating oil detection and replenishment function to solve the problems raised in the prior art.

[0005] To achieve the above object, the present invention provides the following technical solutions: The hot die forging press with lubricating oil detection and replenishment function includes a mounting frame, a forging unit, a detection unit and a controller. The mounting frame is placed on a horizontal basis. The forging unit is fixedly connected to the mounting frame. The forging unit has the function of adjusting the lubricating oil spraying angle of the detection unit. The forging unit is slidably connected to the detection unit. The detection unit is fixedly installed on one end of the mounting frame close to the horizontal basis. The detection unit has the function of automatically replenishing lubricating oil and facilitating the removal of forged parts. The controller is fixedly installed on the mounting frame. The controller is electrically connected to the forging unit.

[0006] The mounting frame is used to install and fix the forging unit, the detection unit and the controller. The forging unit is used for forging forgings, the detection unit is used for level detection and automatic replenishment of lubricating oil, and the controller is used to control the opening and closing of the forging unit and the detection unit. When it is necessary to forge the forging, the controller controls the forging unit to start hammering the forging while controlling the detection unit to spray lubricating oil onto the surface of the forging to form an oil film to protect the forging and avoid damage during forging. When the detection unit detects that the lubricating oil is insufficient, it automatically replenishes it to avoid the inability to lubricate the forging due to insufficient lubricating oil, thereby affecting the forging quality.

[0007] Furthermore, the forging unit includes a motor, a driving wheel, a driven wheel, a synchronous belt, a rotating rod, an extrusion block, a cylinder, a telescopic rod, an upper die and a conductive ring. The fixed end of the motor is fixedly mounted on the upper surface of the mounting frame away from the horizontal foundation, the output end of the motor is fixedly connected to the driving wheel, the driven wheel is fixedly mounted on one end of the rotating rod, the driving wheel and the driven wheel are connected by a synchronous belt, the rotating rod is rotatably mounted on the mounting frame parallel to the horizontal axis and perpendicular to an end surface of the horizontal foundation, the other end of the rotating rod is fixedly connected to the extrusion block, the cylinder is fixedly mounted on the upper surface of the mounting frame away from the horizontal foundation, one end of the telescopic rod is slidably mounted inside the cylinder, and the other end is fixedly connected to the upper die, the upper die is slidably connected to the mounting frame, a groove is provided at one end of the upper die close to the horizontal foundation, a conductive ring is provided inside the groove of the upper die, and the conductive ring is slidably connected to the detection unit.

[0008] When the forging is transported to the lower die, the controller cylinder starts and gas is introduced into the upper part of the cylinder, thereby pushing the telescopic rod to move down to the maximum stroke, thereby driving the upper die to move downward. At this time, the controller controls the motor to start, thereby driving the driving wheel to rotate, and driving the driven wheel to rotate under the transmission action of the synchronous belt, thereby driving the rotating rod and the extrusion block to rotate synchronously. When the extrusion block gradually squeezes the upper die to move downward, the telescopic rod is extended until the upper die contacts the forging. At this time, the extrusion block continues to squeeze the upper die to move downward, thereby driving the upper die to extrude the forging to shape the forging.

[0009] Furthermore, the detection unit includes a fixed column, a coil, a lower mold, a telescopic motor, an extrusion plate, a varistor, a lifting rod, an oil storage cylinder, an oil inlet, an oil outlet, a nozzle, a rotating column, a memory spring, a sealing plate, a slide rail, an electromagnet, a magnet and a conductive plate. The fixed column is slidably connected to the conductive ring. The fixed column is fixedly installed perpendicular to the horizontal axis at the end of the lower mold away from the horizontal foundation. The coil is evenly wound on the outer surface of the fixed column. The lower mold is fixedly installed on the end of the mounting frame close to the horizontal foundation. Two cavities of different sizes are opened inside the lower mold. The fixed end of the telescopic motor is fixedly installed in the small cavity opened inside the lower mold. The telescopic end of the telescopic motor is fixedly connected to the extrusion plate inside the telescopic oil storage cylinder. The oil storage cylinder is fixedly installed in the large cavity opened inside the lower mold. The extrusion plate is slidably installed inside the oil storage cylinder. A varistor is fixedly installed on the end of the extrusion plate close to the horizontal foundation. The extrusion plate is fixedly connected to the lifting rod at the end away from the horizontal foundation. The rod is slidably connected to the lower mold, the oil storage cylinder is provided with an oil inlet, a one-way valve is arranged inside the oil inlet, the oil inlet is communicated with an external lubricating oil tank through a pipeline, the oil storage cylinder side wall is provided with an oil outlet, the oil outlet is arranged inside the one-way valve, the oil outlet is conductively connected with the nozzle through a hose, the nozzle is fixedly mounted on the rotating column, the rotating column is rotatably mounted on the lower mold, one end of the memory spring is fixedly connected to the nozzle, and the other end is fixedly connected to the lower mold, the memory spring is electrically connected to the conductive ring, there are multiple sealing plates, the sealing plates are rotatably mounted in the oil inlet through the connecting column, the slide rail is fixedly mounted inside the oil inlet, the electromagnet is fixedly mounted in the middle of the slide rail, the magnet is slidably mounted on the slide rail, the magnet is fixedly connected to the sealing plate through a connecting rod, the electromagnet is electrically connected to the conductive plate, the conductive plate is fixedly mounted on one end of the varistor close to the horizontal base, and the electromagnet and the magnet have the same polarity along the close end of the slide rail.

[0010] When the upper die contacts the forging, the controller controls the telescopic motor to start. The telescopic motor extends a fixed length each time, driving the extrusion plate to move downward, squeezing the lubricating oil in the oil reservoir from the oil outlet to the nozzle and spraying it onto the forging to lubricate the forging. When the extrusion plate moves downward, it drives the varistor to move downward. When the controller detects that the resistance value of the varistor changes greatly after being subjected to the reverse pressure of the lubricating oil, it indicates that the lubricating oil is sufficient. When the controller detects that the resistance value of the varistor changes less after being subjected to the reverse pressure of the lubricating oil and is not within the preset range, it indicates that the lubricating oil is insufficient. The controller delivers the lubricating oil to the oil reservoir through the oil inlet to ensure that the lubricating oil is sufficient, thereby realizing the automatic The function of automatic detection and replenishment can avoid the inability to deliver the lubricating oil to the nozzle and spray it to the forging for lubrication due to insufficient lubricating oil. When the forging is completed, the telescopic motor contracts, driving the extrusion plate to move up, thereby driving the lifting rod to rise, thereby lifting the forging to facilitate the removal of the forging. When the lubricating oil is insufficient, the resistance of the varistor becomes larger, and the current flows into the conductive plate through the varistor. The conductive plate delivers a small current to the electromagnet, and the electromagnet receives less current, thereby reducing the repulsive force on the magnet. At this time, the magnet slides downward along the slide rail, thereby driving the sealing plate to rotate synchronously to open the oil inlet channel, allowing the external lubricating oil to enter the oil storage cylinder, thereby replenishing the lubricating oil.

[0011] When the upper die moves downward, the conductive ring is driven to move downward synchronously. When the conductive ring contacts the coil, the current transmitted by the controller is transmitted to the conductive ring through the coil, and finally to the memory spring. The memory spring receives the current and expands due to heat. When the conductive ring contacts the coil and moves downward step by step, the effective number of coil turns gradually increases, and the current gradually decreases. At this time, the memory spring contracts slowly. When the thickness of the forging is large, the distance between the upper die and the lower die becomes larger. At this time, the number of effective coils is small, the current decreases less, and the contraction angle of the memory spring from the maximum expansion angle also becomes smaller, thereby driving the nozzle to rotate around the rotating column and retract at a smaller angle. At this time, the nozzle can fully spray lubricating oil on the thicker forging to avoid the nozzle retracting at a large angle. The method of spraying lubricating oil on the upper surface of the forging causes friction between the upper die and the forging during forging, resulting in quality problems of the forging. When the thickness of the forging is small, the distance between the upper die and the lower die becomes smaller. At this time, the number of effective coils increases, the current decreases more, and the contraction angle of the memory spring from the maximum extension angle also increases, thereby driving the nozzle to rotate around the rotating column and retract at a greater angle. At this time, the nozzle can fully spray lubricating oil on forgings with smaller thickness, avoiding the nozzle retraction angle being small. When spraying lubricating oil on the upper surface of the forging, the spraying angle is large, causing the lubricating oil to be sprayed farther across the forging to spray on the lower die, and the forging cannot be fully sprayed. It will also cause friction between the upper die and the forging due to insufficient lubrication during forging, resulting in quality problems of the forging.

[0012] Furthermore, the driven wheel has a larger radius than the driving wheel.

[0013] In order to ensure that the driven wheel can obtain a good speed reduction and torque increase effect during the forging process, while meeting the working requirements and equipment performance of the forging machine.

[0014] Furthermore, the extrusion block is in a cam shape.

[0015] By precisely controlling the rotation of the extrusion block, high-precision control of the upper die lowering position can be achieved, ensuring that the dimensional tolerance of the forging is within an extremely small range. At the same time, the upper die stroke can be controlled in conjunction with the cylinder. When the cylinder fails, a certain degree of motion control of the upper die can be guaranteed, thereby improving the reliability and safety of the system.

[0016] Furthermore, a plurality of groups of circular holes are evenly formed on the surface of the nozzle.

[0017] Multiple groups of round holes can disperse the lubricating oil into numerous tiny oil droplets, which are sprayed out from different positions to cover a wider range of the forging surface, avoiding the situation of excessive or insufficient local lubricating oil, so that all parts of the forging can be lubricated appropriately and evenly.

[0018] Furthermore, the end of the coil close to the upper mold is a current input end.

[0019] In order to facilitate the conductive ring to descend to different heights according to forgings of different thicknesses, the contraction degree of the memory spring is gradually changed in accordance with the effective number of coil turns, thereby changing the angle of the nozzle, so as to fully spray lubricating oil on the surface of forgings of different thicknesses, avoid wear and improve the quality of forgings.

[0020] Furthermore, the coil is electrically connected to the controller, the telescopic motor is electrically connected to the controller, the varistor is electrically connected to the controller, and the extrusion plate is electrically connected to the controller. In order to realize the automatic control and timely response of the device, when the controller detects that the change in the resistance value of the varistor is not within the preset range, the lubricating oil can be quickly replenished to avoid insufficient lubricating oil from being unable to be delivered to the nozzle and sprayed onto the forging for lubrication, causing forging quality problems.

[0021] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention controls the stroke of the upper die by the extrusion block and the cylinder in the forging unit, thereby avoiding the situation where the extrusion block can still ensure a certain degree of motion control of the upper die in the event of a malfunction or failure of the cylinder, thereby improving the reliability and safety of the system.

[0022] 2. The present invention uses a conductive ring to lower different heights according to forgings of different thicknesses and cooperates with the coil in the detection unit to change the contraction degree of the memory spring, thereby changing the angle of the nozzle, so as to fully spray lubricating oil on the surface of forgings of different thicknesses, avoid wear and improve the quality of forgings.

[0023] 3. When the extrusion plate in the detection unit of the present invention drives the varistor to move down a certain length, the reaction pressure of lubricating oil of different depths on the varistor is different. When the varistor value changes slightly and exceeds the preset range, it means that the lubricating oil in the oil storage cylinder is insufficient, the electromagnet receives less current, and thus the repulsive force on the magnet is reduced. At this time, the magnet slides downward along the slide rail, thereby driving the sealing plate to rotate synchronously to open the channel of the oil inlet, so that the external lubricating oil enters the oil storage cylinder, thereby replenishing the lubricating oil. The lower the lubricating oil level, the larger the opening of the sealing plate, and the greater the flow rate input from the oil inlet. When the varistor value changes greatly, it proves that the lubricating oil is sufficient. When the forging is completed, the telescopic motor contracts, driving the extrusion plate to move up, thereby driving the lifting rod to rise, thereby lifting the forging, which is convenient for removing the forging. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall appearance structure of a hot die forging press with a lubricating oil detection and replenishment function according to the present invention; Figure 2 It is a front view structural schematic diagram of a hot die forging press with lubricating oil detection and replenishment function of the present invention; Figure 3 It is a top view structural schematic diagram of a hot die forging press with lubricating oil detection and replenishment function according to the present invention; Figure 4 The invention provides a hot die forging press with a lubricating oil detection and replenishment function. Figure 3 Schematic diagram of the cross-section structure at AA in the middle; Figure 5 The invention provides a hot die forging press with a lubricating oil detection and replenishment function. Figure 4 A schematic diagram of the partially enlarged structure at B in the middle; Figure 6 The invention provides a hot die forging press with a lubricating oil detection and replenishment function. Figure 4 A schematic diagram of the partially enlarged structure at C in the middle; Figure 7 The invention provides a hot die forging press with a lubricating oil detection and replenishment function. Figure 4 The schematic diagram of the local enlarged structure at D in the middle; Figure 8 It is a schematic diagram of the appearance structure of a nozzle of a hot die forging press with a lubricating oil detection and replenishment function according to the present invention; Fig. 9 This is a schematic diagram of the internal oil inlet of a hot die forging press with a lubricating oil detection and replenishment function according to the present invention. In the figure: 1. mounting frame; 2. forging unit; 21. motor; 22. driving wheel; 23. driven wheel; 24. synchronous belt; 25. rotating rod; 26. extrusion block; 27. cylinder; 28. telescopic rod; 29. ​​upper die; 210. conductive ring; 3. detection unit; 31. fixed column; 32. coil; 33. lower die; 34. telescopic motor; 35. extrusion plate; 36. varistor; 37. lifting rod; 38. oil storage cylinder; 39. oil inlet; 310. oil outlet; 311. nozzle; 312. rotating column; 313. memory spring; 314. blocking plate; 315. slide rail; 316. electromagnet; 317. magnet; 318. conductive plate; 4. controller. DETAILED DESCRIPTION

[0025] 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.

[0026] Example: Figure 1-Figure 8 As shown, the present invention provides a technical solution: like Figure 1 As shown, a hot die forging press with a lubricating oil detection and replenishment function includes a mounting frame 1, a forging unit 2, a detection unit 3 and a controller 4. The mounting frame 1 is placed on a horizontal foundation, the forging unit 2 is fixedly connected to the mounting frame 1, the forging unit 2 has a function of adjusting the lubricating oil spraying angle of the detection unit 3, the forging unit 2 is slidably connected to the detection unit 3, the detection unit 3 is fixedly mounted on one end of the mounting frame 1 close to the horizontal foundation, the detection unit 3 has the function of automatically replenishing the lubricating oil and facilitating the removal of forged parts, the controller 4 is fixedly mounted on the mounting frame 1, and the controller 4 is electrically connected to the forging unit 2.

[0027] The mounting frame 1 is used to install and fix the forging unit 2, the detection unit 3 and the controller 4. The forging unit 2 is used for forging forgings, the detection unit 3 is used for level detection and automatic replenishment of lubricating oil, and the controller 4 is used to control the opening and closing of the forging unit 2 and the detection unit 3. When the forging needs to be forged, the controller 4 controls the forging unit 2 to start hammering the forging while controlling the detection unit 3 to spray lubricating oil onto the surface of the forging to form an oil film to protect the forging and avoid damage during forging. When the detection unit 3 detects that the lubricating oil is insufficient, it automatically replenishes it to avoid the inability to lubricate the forging due to insufficient lubricating oil, thereby affecting the forging quality.

[0028] like Figure 1 , 2, 3, 4, and 6, the forging unit 2 includes a motor 21, a driving wheel 22, a driven wheel 23, a synchronous belt 24, a rotating rod 25, an extrusion block 26, a cylinder 27, a telescopic rod 28, an upper die 29, and a conductive ring 210. The fixed end of the motor 21 is fixedly mounted on the upper surface of the mounting frame 1 away from the horizontal foundation. The output end of the motor 21 is fixedly connected to the driving wheel 22, and the driven wheel 23 is fixedly mounted on one end of the rotating rod 25. The driving wheel 22 and the driven wheel 23 are connected by a synchronous belt 24. The rotating rod 25 is parallel to the water level. The horizontal axis is rotatably installed on the mounting frame 1 perpendicular to one end face of the horizontal foundation, the other end of the rotating rod 25 is fixedly connected to the extrusion block 26, the cylinder 27 is fixedly installed on the upper surface of the mounting frame 1 away from the horizontal foundation, one end of the telescopic rod 28 is slidably installed inside the cylinder 27, and the other end is fixedly connected to the upper mold 29, the upper mold 29 is slidably connected to the mounting frame 1, a groove is provided at one end of the upper mold 29 close to the horizontal foundation, a conductive ring 210 is arranged inside the groove of the upper mold 29, and the conductive ring 210 is slidably connected to the detection unit 3.

[0029] When the forging is transported to the lower die 33, the cylinder 27 of the controller 4 is started, and gas is introduced into the upper part of the cylinder 27, thereby pushing the telescopic rod 28 to move down to the maximum stroke, thereby driving the upper die 29 to move downward. At this time, the controller 4 controls the motor 21 to start, thereby driving the driving wheel 22 to rotate, and driving the driven wheel 23 to rotate under the transmission action of the synchronous belt 24, thereby driving the rotating rod 25 and the extrusion block 26 to rotate synchronously. When the extrusion block 26 will gradually extrude the upper die 29 to move downward, the telescopic rod 28 will be extended until the upper die 29 contacts the forging. At this time, the extrusion block 26 continues to extrude the upper die 29 to move downward, thereby driving the upper die 29 to extrude the forging to shape the forging.

[0030] like Figure 4 , 5, 6, 7, 8, and 9, the detection unit 3 includes a fixed column 31, a coil 32, a lower mold 33, a telescopic motor 34, an extrusion plate 35, a varistor 36, a lifting rod 37, an oil storage cylinder 38, an oil inlet 39, an oil outlet 310, a nozzle 311, a rotating column 312, a memory spring 313, a blocking plate 314, a slide rail 315, an electromagnet 316, a magnet 317, and a conductive plate 318. The fixed column 31 is slidably connected to the conductive ring 210, and the fixed column 31 is fixedly installed perpendicular to the horizontal axis at one end of the lower mold 33 away from the horizontal foundation. The coil 32 is evenly wound around the fixed column 31. The outer surface of the fixed column 31, the lower mold 33 is fixedly installed on the end of the mounting frame 1 close to the horizontal foundation, and two cavities of different sizes are opened inside the lower mold 33. The fixed end of the telescopic motor 34 is fixedly installed in the small cavity opened inside the lower mold 33. The telescopic end of the telescopic motor 34 is fixedly connected to the extrusion plate 35 inside the telescopic oil storage cylinder 38, and the oil storage cylinder 38 is fixedly installed in the large cavity opened inside the lower mold 33. The extrusion plate 35 is slidably installed inside the oil storage cylinder 38. A varistor 36 is fixedly installed on the end of the extrusion plate 35 close to the horizontal foundation, and the end of the extrusion plate 35 away from the horizontal foundation is fixedly connected to the lifting rod 37 The lifting rod 37 is slidably connected with the lower mold 33, the oil storage cylinder 38 is provided with an oil inlet 39, a one-way valve is arranged inside the oil inlet 39, the oil inlet 39 is connected with the external lubricating oil tank through a pipeline, the side wall of the oil storage cylinder 38 is provided with an oil outlet 310, a one-way valve is arranged inside the oil outlet 310, the oil outlet 310 is connected with the nozzle 311 through a hose, the nozzle 311 is fixedly mounted on the rotating column 312, the rotating column 312 is rotatably mounted on the lower mold 33, one end of the memory spring 313 is fixedly connected with the nozzle 311, and the other end is fixedly connected with the lower mold 33, the memory spring 313 It is electrically connected to the conductive ring 210, and there are multiple sealing plates 314. The sealing plates 314 are rotatably installed in the oil inlet 39 through a connecting column. The slide rail 315 is fixedly installed inside the oil inlet 39. The electromagnet 316 is fixedly installed in the middle of the slide rail 315. The magnet 317 is slidably installed on the slide rail 315. The magnet 317 is fixedly connected to the sealing plate 314 through a connecting rod. The electromagnet 316 is electrically connected to the conductive plate 318. The conductive plate 318 is fixedly installed on one end of the varistor 36 close to the horizontal foundation. The electromagnet 316 and the magnet 317 have the same polarity along the close end of the slide rail 315.

[0031] When the upper die 29 contacts the forging, the controller 4 controls the telescopic motor 34 to start. Each time the telescopic motor 34 extends a fixed length, it drives the extrusion plate 35 to move downward, and squeezes the lubricating oil in the oil storage cylinder 38 from the oil outlet 310 to the nozzle 311 and sprays it to the forging to lubricate the forging. When the extrusion plate 35 moves downward, it drives the varistor 36 to move downward. When the controller 4 detects that the resistance value of the varistor 36 changes greatly after the reverse pressure of the lubricating oil, it means that the lubricating oil is sufficient. When the controller 4 detects that the resistance value of the varistor 36 changes little after the reverse pressure of the lubricating oil and is not within the preset range, it means that the lubricating oil is insufficient. The controller 4 delivers the lubricating oil to the oil storage cylinder 38 through the oil inlet 39 to ensure that the lubricating oil is sufficient, thereby realizing automatic detection and replenishment of the lubricating oil. The function of providing lubricating oil can avoid the inability to deliver the lubricating oil to the nozzle 311 and spray it to the forging for lubrication due to insufficient lubricating oil. When the forging is completed, the telescopic motor 34 contracts, driving the extrusion plate 35 to move upward, thereby driving the lifting rod 37 to rise, thereby lifting the forging to facilitate the removal of the forging. When the lubricating oil is insufficient, the resistance of the varistor 36 becomes larger, and the current flows into the conductive plate 318 through the varistor 36. The conductive plate 318 delivers a small current to the electromagnet 316. The electromagnet 316 receives less current, thereby reducing the repulsive force on the magnet 317. At this time, the magnet 317 slides downward along the slide rail 315, thereby driving the sealing plate 314 to rotate synchronously to open the channel of the oil inlet 39, allowing the external lubricating oil to enter the oil storage cylinder 38, thereby replenishing the lubricating oil.

[0032] When the upper die 29 moves downward, the conductive ring 210 is driven to move downward synchronously. When the conductive ring 210 just contacts the coil 32, the current transmitted by the controller 4 is transmitted to the conductive ring 210 through the coil 32, and finally transmitted to the memory spring 313. The memory spring 313 receives the current and heats and expands. When the conductive ring 210 contacts the coil 32 and moves downward step by step, the effective number of turns of the coil 32 gradually increases, and the current gradually decreases. At this time, the memory spring 313 slowly contracts. When the thickness of the forging is large, the distance between the upper die 29 and the lower die 33 becomes larger. At this time, the number of effective coils 32 is small, the current decreases less, and the contraction angle of the memory spring 313 from the maximum telescopic angle also becomes smaller, thereby driving the nozzle 311 to rotate around the rotating column 312 and retract. The angle also becomes smaller. At this time, the nozzle 311 can fully spray lubricating oil on the forging with a larger thickness to avoid The nozzle 311 has a large retraction angle and cannot spray lubricating oil on the upper surface of the forging, resulting in friction between the upper die 29 and the forging during forging, causing quality problems of the forging. When the thickness of the forging is small, the distance between the upper die 29 and the lower die 33 becomes smaller. At this time, the number of effective coils 32 increases, the current decreases more, and the contraction angle of the memory spring 313 from the maximum telescopic angle also increases, thereby driving the nozzle 311 to rotate and retract around the rotating column 312. At this time, the nozzle 311 can fully spray lubricating oil on forgings with smaller thickness, avoiding the nozzle 311 retracting at a small angle to spray lubricating oil on the upper surface of the forging, resulting in a large spraying angle, causing the lubricating oil to be sprayed far across the forging to spray on the lower die 33, and failing to fully spray the forging. It will also cause friction between the upper die 29 and the forging due to insufficient lubrication during forging, causing quality problems of the forging.

[0033] like Figure 1 , 3 As shown, the driven wheel 23 has a larger radius than the driving wheel 22.

[0034] In order to ensure that the driven wheel 23 can obtain a good speed reduction and torque increase effect during the forging process, while meeting the working requirements and equipment performance of the forging machine.

[0035] like Figure 4 As shown, the squeeze block 26 is cam-shaped.

[0036] By precisely controlling the rotation of the extrusion block 26, high-precision control of the lowering position of the upper die 29 can be achieved, ensuring that the dimensional tolerance of the forged part is within an extremely small range. At the same time, the stroke of the upper die 29 can be controlled in conjunction with the cylinder 27. When the cylinder 27 fails, a certain degree of motion control of the upper die 29 can be guaranteed, thereby improving the reliability and safety of the system.

[0037] like Figure 8 As shown, a plurality of groups of circular holes are evenly arranged on the surface of the nozzle 311 .

[0038] Multiple groups of round holes can disperse the lubricating oil into numerous tiny oil droplets, which are sprayed out from different positions to cover a wider range of the forging surface, avoiding the situation of excessive or insufficient local lubricating oil, so that all parts of the forging can be lubricated appropriately and evenly.

[0039] like Figure 6 As shown, the end of the coil 32 close to the upper mold 29 is the current input end.

[0040] In order to facilitate the conductive ring 210 to descend to different heights according to the different thicknesses of forgings, the contraction degree of the memory spring 313 is gradually changed according to the effective number of turns of the coil 32, thereby changing the angle of the nozzle 311, so as to adapt to the full spraying of lubricating oil on the surface of forgings of different thicknesses, avoid wear and improve the quality of forgings.

[0041] like Figure 5 , 6 As shown, the coil 32 is electrically connected to the controller 4 , the telescopic motor 34 is electrically connected to the controller 4 , the varistor 36 is electrically connected to the controller 4 , and the extrusion plate 35 is electrically connected to the controller 4 .

[0042] In order to realize automatic control and timely response of the device, when the controller detects that the resistance change of the varistor 36 is not within the preset range, the lubricating oil can be quickly replenished to avoid insufficient lubricating oil from being unable to be transported to the nozzle 311 and sprayed onto the forging for lubrication, causing quality problems of the forging.

[0043] Working principle of the present invention: When the forging is transported to the lower die 33, the cylinder 27 of the controller 4 is started, and gas is introduced into the upper part of the cylinder 27, thereby pushing the telescopic rod 28 to move down to the maximum stroke, thereby driving the upper die 29 to move downward. At this time, the controller 4 controls the motor 21 to start, thereby driving the driving wheel 22 to rotate, and driving the driven wheel 23 to rotate under the transmission action of the synchronous belt 24, thereby driving the rotating rod 25 and the extrusion block 26 to rotate synchronously. When the extrusion block 26 will gradually extrude the upper die 29 to move downward, the telescopic rod 28 will be extended until the upper die 29 contacts the forging. At this time, the extrusion block 26 continues to extrude the upper die 29 to move downward, thereby driving the upper die 29 to extrude the forging to shape the forging.

[0044] When the upper die 29 contacts the forging, the controller 4 controls the telescopic motor 34 to start. Each time the telescopic motor 34 extends a fixed length, it drives the extrusion plate 35 to move downward, and squeezes the lubricating oil in the oil storage cylinder 38 from the oil outlet 310 to the nozzle 311 and sprays it to the forging to lubricate the forging. When the extrusion plate 35 moves downward, it drives the varistor 36 to move downward. When the controller 4 detects that the resistance value of the varistor 36 changes greatly after the reverse pressure of the lubricating oil, it means that the lubricating oil is sufficient. When the controller 4 detects that the resistance value of the varistor 36 changes little after the reverse pressure of the lubricating oil and is not within the preset range, it means that the lubricating oil is insufficient. The controller 4 delivers the lubricating oil to the oil storage cylinder 38 through the oil inlet 39 to ensure that the lubricating oil is sufficient, thereby realizing automatic detection and replenishment of the lubricating oil. The function of providing lubricating oil can avoid the inability to deliver the lubricating oil to the nozzle 311 and spray it to the forging for lubrication due to insufficient lubricating oil. When the forging is completed, the telescopic motor 34 contracts, driving the extrusion plate 35 to move upward, thereby driving the lifting rod 37 to rise, thereby lifting the forging to facilitate the removal of the forging. When the lubricating oil is insufficient, the resistance of the varistor 36 becomes larger, and the current flows into the conductive plate 318 through the varistor 36. The conductive plate 318 delivers a small current to the electromagnet 316. The electromagnet 316 receives less current, thereby reducing the repulsive force on the magnet 317. At this time, the magnet 317 slides downward along the slide rail 315, thereby driving the sealing plate 314 to rotate synchronously to open the channel of the oil inlet 39, allowing the external lubricating oil to enter the oil storage cylinder 38, thereby replenishing the lubricating oil.

[0045] When the upper die 29 moves downward, the conductive ring 210 is driven to move downward synchronously. When the conductive ring 210 just contacts the coil 32, the current transmitted by the controller 4 is transmitted to the conductive ring 210 through the coil 32, and finally transmitted to the memory spring 313. The memory spring 313 receives the current and heats and expands. When the conductive ring 210 contacts the coil 32 and moves downward step by step, the effective number of turns of the coil 32 gradually increases, and the current gradually decreases. At this time, the memory spring 313 slowly contracts. When the thickness of the forging is large, the distance between the upper die 29 and the lower die 33 becomes larger. At this time, the number of effective coils 32 is small, the current decreases less, and the contraction angle of the memory spring 313 from the maximum telescopic angle also becomes smaller, thereby driving the nozzle 311 to rotate around the rotating column 312 and retract. The angle also becomes smaller. At this time, the nozzle 311 can fully spray lubricating oil on the forging with a larger thickness to avoid The nozzle 311 has a large retraction angle and cannot spray lubricating oil on the upper surface of the forging, resulting in friction between the upper die 29 and the forging during forging, causing quality problems of the forging. When the thickness of the forging is small, the distance between the upper die 29 and the lower die 33 becomes smaller. At this time, the number of effective coils 32 increases, the current decreases more, and the contraction angle of the memory spring 313 from the maximum telescopic angle also increases, thereby driving the nozzle 311 to rotate and retract around the rotating column 312. At this time, the nozzle 311 can fully spray lubricating oil on forgings with smaller thickness, avoiding the nozzle 311 retracting at a small angle to spray lubricating oil on the upper surface of the forging, resulting in a large spraying angle, causing the lubricating oil to be sprayed far across the forging to spray on the lower die 33, and failing to fully spray the forging. It will also cause friction between the upper die 29 and the forging due to insufficient lubrication during forging, causing quality problems of the forging.

[0046] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A hot die forging press with lubricating oil detection and replenishment function, characterized in that: A hot die forging press with a lubricating oil detection and replenishment function comprises a mounting frame (1), a forging unit (2), a detection unit (3) and a controller (4); the mounting frame (1) is placed on a horizontal foundation; the forging unit (2) is fixedly connected to the mounting frame (1); the forging unit (2) has a function of adjusting the lubricating oil spraying angle of the detection unit (3); the forging unit (2) and the detection unit (3) are slidably connected; the detection unit (3) is fixedly mounted on one end of the mounting frame (1) close to the horizontal foundation; the detection unit (3) has the function of automatically replenishing the lubricating oil and facilitating the removal of forged parts; the controller (4) is fixedly mounted on the mounting frame (1); and the controller (4) is electrically connected to the forging unit (2).

2. The hot die forging press with lubricating oil detection and replenishment function according to claim 1, characterized in that: The forging unit (2) comprises a motor (21), a driving wheel (22), a driven wheel (23), a synchronous belt (24), a rotating rod (25), an extrusion block (26), a cylinder (27), a telescopic rod (28), an upper die (29) and a conductive ring (210); the fixed end of the motor (21) is fixedly mounted on the upper surface of an end of the mounting frame (1) away from the horizontal base; the output end of the motor (21) is fixedly connected to the driving wheel (22); the driven wheel (23) is fixedly mounted on one end of the rotating rod (25); the driving wheel (22) and the driven wheel (23) are connected via a synchronous belt (24); the rotating rod (25) is parallel to the horizontal base. The horizontal axis is rotatably mounted on the mounting frame (1) perpendicular to one end surface of the horizontal foundation, the other end of the rotating rod (25) is fixedly connected to the extrusion block (26), the cylinder (27) is fixedly mounted on the upper surface of the mounting frame (1) away from the horizontal foundation, one end of the telescopic rod (28) is slidably mounted inside the cylinder (27), and the other end is fixedly connected to the upper mold (29), the upper mold (29) is slidably connected to the mounting frame (1), a groove is provided at one end of the upper mold (29) close to the horizontal foundation, a conductive ring (210) is provided inside the groove of the upper mold (29), and the conductive ring (210) is slidably connected to the detection unit (3).

3. The hot die forging press with lubricating oil detection and replenishment function according to claim 2, characterized in that: The detection unit (3) comprises a fixed column (31), a coil (32), a lower die (33), a telescopic motor (34), an extrusion plate (35), a varistor (36), a lifting rod (37), an oil storage cylinder (38), an oil inlet (39), an oil outlet (310), a nozzle (311), a rotating column (312), a memory spring (313), a blocking plate (314), a slide rail (315), an electromagnet (316), a magnet (317) and a conductive plate (318); the fixed column (31) is slidably connected to the conductive ring (210); the fixed column (31) is fixedly mounted perpendicular to the horizontal axis at one end of the lower die (33) away from the horizontal base; the coil (32) is evenly wound around the outer surface of the fixed column (31). The lower mold (33) is fixedly mounted on one end of the mounting frame (1) close to the horizontal foundation, and two cavities of different sizes are opened inside the lower mold (33). The fixed end of the telescopic motor (34) is fixedly mounted on the small cavity opened inside the lower mold (33). The telescopic end of the telescopic motor (34) is fixedly connected to the extrusion plate (35) inside the telescopic oil storage cylinder (38). The oil storage cylinder (38) is fixedly mounted on the large cavity opened inside the lower mold (33). The extrusion plate (35) is slidably mounted inside the oil storage cylinder (38). A varistor (36) is fixedly mounted on one end of the extrusion plate (35) close to the horizontal foundation, and the end of the extrusion plate (35) away from the horizontal foundation is fixedly connected to a lifting rod (37). The lifting rod (37) is connected to the The lower mold (33) is slidably connected, the oil storage cylinder (38) is provided with an oil inlet (39), a one-way valve is provided inside the oil inlet (39), the oil inlet (39) is communicated with an external lubricating oil tank through a pipeline, the side wall of the oil storage cylinder (38) is provided with an oil outlet (310), a one-way valve is provided inside the oil outlet (310), the oil outlet (310) is conductively connected to a nozzle (311) through a hose, the nozzle (311) is fixedly mounted on a rotating column (312), the rotating column (312) is rotatably mounted on the lower mold (33), one end of the memory spring (313) is fixedly connected to the nozzle (311), and the other end is fixedly connected to the lower mold (33), the memory spring (313) is connected to a conductive The ring (210) is electrically connected, there are a plurality of blocking plates (314), the blocking plates (314) are rotatably mounted in the oil inlet (39) via a connecting column, the slide rail (315) is fixedly mounted inside the oil inlet (39), the electromagnet (316) is fixedly mounted in the middle of the slide rail (315), the magnet (317) is slidably mounted on the slide rail (315), the magnet (317) and the blocking plate (314) are fixedly connected via a connecting rod, the electromagnet (316) is electrically connected to a conductive plate (318), the conductive plate (318) is fixedly mounted at one end of the varistor (36) close to the horizontal base, and the electromagnet (316) and the magnet (317) have the same polarity along the end close to the slide rail (315).

4. The hot die forging press with lubricating oil detection and replenishment function according to claim 2, characterized in that: The driven wheel (23) has a larger radius than the driving wheel (22).

5. The hot die forging press with lubricating oil detection and replenishment function according to claim 2, characterized in that: The extrusion block (26) is in the shape of a cam.

6. The hot die forging press with lubricating oil detection and replenishment function according to claim 3, characterized in that: The surface of the nozzle (311) is evenly provided with multiple groups of circular holes.

7. The hot die forging press with lubricating oil detection and replenishment function according to claim 3, characterized in that: One end of the coil (32) close to the upper die (29) is a current input end.

8. The hot die forging press with lubricating oil detection and replenishment function according to claim 3, characterized in that: The coil (32) is electrically connected to the controller (4), the telescopic motor (34) is electrically connected to the controller (4), the varistor (36) is electrically connected to the controller (4), and the extrusion plate (35) is electrically connected to the controller (4).

Images