Hot forging die for magnetic pole of automobile generator

Abstract

The invention relates to the technical field of automobile part machining, in particular to an automobile generator magnetic pole hot forging die which comprises a lower die body, an upper die body, a piston block and a pressure adjusting assembly, the upper die body and the lower die body can be assembled, a first groove and a second groove are formed in the lower die body, raw materials form a workpiece in the first groove and the second groove, and the workpiece comprises a disc and clamping jaws. The piston block is slidably arranged in the second groove in the vertical direction, the piston block can separate the second groove, the piston block is located below the clamping jaw and can make contact with the clamping jaw, and the pressure adjusting assembly communicates with the second groove and is used for controlling the pressure intensity in the second groove. And the pressure adjusting assembly is arranged, after the raw materials enter the first groove, the pressure adjusting assembly controls the first groove and the second groove to be in a negative pressure environment, the flowing speed of the raw materials is increased, the flowing distance of the raw materials is increased, the piston block can accurately control the extending distance of the raw materials in the second groove, the length of the clamping jaw can be controlled, and the forming quality of workpieces is improved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts processing, in particular to a hot forging die for a magnetic pole of an automobile generator. Background Art

[0002] Most of the magnetic poles of automobile generators are claw-shaped, also known as claw poles. At present, the manufacturing processes of claw poles for automobile generators at home and abroad include hot, warm and cold die forging, which generally require 5 There are 9 separate forming processes, such as cutting, heating, upsetting, pre-forging, final forging, trimming, etc. Some intermediate treatments are required between these processes, such as annealing, phase change treatment and finishing. Each process requires separate forming equipment. Therefore, claw pole manufacturing has long been plagued by complex processes, long production cycles, and low material utilization.

[0003] As competition in the manufacturing industry becomes increasingly fierce, high-efficiency, precision, low-consumption and high-quality products have become the mainstream pursuit of the manufacturing industry to improve product competitiveness. Summary of the invention

[0004] Based on this, it is necessary to provide a hot forging die for the magnetic poles of automobile generators to address the problem of complex claw pole hot forging procedures.

[0005] The above purpose is achieved through the following technical solutions: A hot forging die for a magnetic pole of an automobile generator comprises a base, a lower die, an upper die, a forging assistance mechanism, a driving mechanism and a pressure regulating mechanism. The base is fixedly arranged, the lower die is fixedly arranged above the base, the upper die is slidably arranged above the lower die in a vertical direction, the upper die and the lower die can be closed, a first groove and a second groove are provided on the lower die, the first groove is provided on the upper surface of the lower die, a plurality of second grooves are provided, and the plurality of second grooves are evenly distributed around the circumference of the first groove, the first groove is connected with the plurality of second grooves on the upper surface of the lower die, the second groove runs through the upper and lower surfaces of the lower die, a third groove is provided on the upper die, when the upper die and the lower die are closed, the first groove and the second groove are both connected with the third groove, the raw material forms a workpiece in the first groove, the second groove and the third groove, the workpiece comprises a disc and a clamp, the disc is located in the first groove and the third groove, and the clamp is located in the second groove.

[0006] The number of forging assistance mechanisms is consistent with the number of second grooves. Each forging assistance mechanism includes a connecting rod and two piston blocks. The two piston blocks are slidably arranged in a second groove along the vertical direction, and the two piston blocks can separate the second groove. Each piston block is located below the clamp and can contact the clamp. The connecting rod is slidably arranged below the piston block along the vertical direction, and the connecting rod and the piston block are slidably connected along the horizontal direction. The pressure regulating assembly is arranged on the base, and the pressure regulating assembly is connected to the second groove for controlling the pressure in the second groove. The driving mechanism is arranged on the base, and the driving mechanism is used to control the connecting rod to slide in the vertical direction.

[0007] Preferably, the first groove is cylindrical, and each second groove has four side faces, the four side faces are opposite to each other in pairs, and two opposite side faces are arranged in the radial direction of the first groove, one of the two side faces of the second groove arranged in the radial direction of the first groove that is away from the axis of the first groove is parallel to the axis of the first groove, and the other two opposite side faces of the second groove are arranged in the circumferential direction of the first groove, and the distance between the two side faces of the second groove arranged in the circumferential direction of the first groove gradually approaches each other from the upper end to the lower end of the lower mold, and the side face of the second groove close to the axis of the first groove in the radial direction of the first groove includes a first face and a second face, the first face and the second face are arranged in the axial direction of the first groove, and the first face is closer to the first groove than the second face, and the first face gradually moves away from the axis of the first groove from the first groove to the position in contact with the second face, and the second face is parallel to the axis of the first groove.

[0008] Preferably, the two piston blocks are respectively slidably connected to the two side surfaces of the second groove in the circumferential direction of the first groove, and each piston block is respectively slidably connected to the second surface and a side surface of the second groove in the radial direction of the first groove away from the axis of the first groove. A spacing is provided between the two piston blocks, so that the second groove can be separated when the two piston blocks abut against each other.

[0009] Preferably, a water supply device is provided on the base, the water supply device is communicated with the second groove and is located below the piston block, and is used for supplying liquid into the second groove.

[0010] Preferably, the driving mechanism includes an electric push rod and a connecting plate. The electric push rod is vertically installed on the base, and the electric push rod is extended and retracted in the vertical direction. The connecting plate is fixedly installed on one end of the electric push rod away from the base. Multiple connecting rods are respectively connected to the connecting plate. Sensors are provided on the connecting rods, and the sensors are electrically connected to the electric push rod.

[0011] Preferably, the pressure regulating mechanism includes an air pump and a pipeline, the air pump is connected to a connecting rod through the pipeline, and the air pump and the connecting rod are in communication.

[0012] Preferably, a control panel is provided on the base, and the control panel is electrically connected to the air pump, the electric push rod, and the water supply equipment respectively.

[0013] Preferably, each piston block is provided with a boss and a slide groove on one side close to the other piston block, a spacing is provided between the boss and the slide groove, and the boss and the slide groove are consistent in shape and size, and the boss on one piston block is slidably connected to the slide groove on the other piston block, the bottom surface of the boss gradually approaches the upper surface of the boss from the side close to the piston block to the side away from the piston block, and the shape of the slide groove is adapted to the boss.

[0014] Preferably, a sliding rod is provided at one end of the connecting rod close to the piston block, the sliding rod extends in the horizontal direction, the piston block is slidably arranged on the sliding rod in the horizontal direction, and the connecting rod is located between the two piston blocks. Two springs are sleeved on the sliding rod, the two ends of one of the springs are respectively connected to the connecting rod and a piston block, and the two ends of the other spring are respectively connected to the connecting rod and the other piston block.

[0015] Preferably, a receiving groove is provided on a surface of the base close to the lower mold, the receiving groove is connected to the second groove, and the size of the receiving groove is consistent with the cross-sectional size of the second groove on the lower surface of the lower mold, the piston block can slide in the receiving groove, and the piston block contacts the surface of the receiving groove, the connecting rod passes through the base and is slidably set in the receiving groove, the connecting rod is hollow inside, and an air hole is provided on the connecting rod, and the air hole is located in the receiving groove.

[0016] The beneficial effects of the present invention are as follows: a pressure regulating component is provided, and after the raw material enters the first groove, the pressure regulating component controls the first groove and the second groove to be a negative pressure environment, thereby assisting the flow of the raw material in the first groove, improving the flow speed of the raw material and increasing the flow distance of the raw material. Through the cooperation of the piston block and the driving mechanism, the extension distance of the raw material in the second groove can be accurately controlled, thereby controlling the length of the clamping jaws and improving the forming quality of the workpiece. Through the cooperation of the pressure regulating component and the driving mechanism, the process and workstations of forging the workpiece can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic structural diagram of a hot forging die for a magnetic pole of an automobile generator provided by an embodiment of the present invention; Figure 2 A split diagram of a hot forging die for a magnetic pole of an automobile generator provided by an embodiment of the present invention; Figure 3 A front view of a hot forging die for a magnetic pole of an automobile generator provided by an embodiment of the present invention; Figure 4 for Figure 3 Sectional view along AA direction; Figure 5 for Figure 4 Enlarged view of point C in the middle; Figure 6 A top view of a hot forging die for a magnetic pole of an automobile generator provided by an embodiment of the present invention; Figure 7 for Figure 6 Cross-sectional view along the BB direction; Figure 8 for Figure 7 The enlarged view of point D in the middle; Fig. 9 A top view of a lower die of a hot forging die for a magnetic pole of an automobile generator provided by an embodiment of the present invention; Fig.10 for Fig. 9 Enlarged view of point E in the middle; Fig.11 A schematic structural diagram of a piston block of a hot forging die for a magnetic pole of an automobile generator provided in an embodiment of the present invention.

[0018] Among them: 100, base; 101, lower mold; 102, upper mold; 103, first groove; 104, second groove; 105, disc; 106, clamping claw; 107, piston block; 108, connecting rod; 109, first surface; 110, second surface; 111, boss; 112, slide groove; 113, slide rod; 114, spring; 115, receiving groove; 116, air hole; 117, electric push rod; 118, connecting plate. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0020] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present invention, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0021] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0022] like Figures 1 to 10As shown, an embodiment of the present invention provides a hot forging die for a magnetic pole of an automobile generator, comprising a base 100, a lower die 101, an upper die 102, a forging assisting mechanism, a driving mechanism and a pressure regulating mechanism, wherein the base 100 is fixedly arranged, the lower die 101 is fixedly arranged above the base 100, the upper die 102 is slidably arranged above the lower die 101 along the vertical direction, the upper die 102 and the lower die 101 can be molded together, and the lower die 101 is provided with a first groove 103 and a second groove 104, the first groove 103 is provided on the upper surface of the lower die 101, a plurality of second grooves 104 are provided, and the plurality of second grooves 104 are arranged around the first groove 103. A groove 103 is evenly distributed on the circumference, the first groove 103 is connected with multiple second grooves 104 on the upper surface of the lower mold 101, the second groove 104 runs through the upper and lower surfaces of the lower mold 101, and a third groove is opened on the upper mold 102. When the upper mold 102 and the lower mold 101 are closed, the first groove 103 and the second groove 104 are connected with the third groove, and the raw material forms a workpiece in the first groove 103, the second groove 104, and the third groove. The workpiece includes a disc 105 and a clamp 106. The disc 105 is located in the first groove 103 and the third groove, and the clamp 106 is located in the second groove 104.

[0023] The number of forging assistance mechanisms is consistent with the number of second grooves 104. Each forging assistance mechanism includes a connecting rod 108 and two piston blocks 107. The two piston blocks 107 are slidably arranged in a second groove 104 along the vertical direction, and the two piston blocks 107 can separate the second groove 104. Each piston block 107 is located below the clamp 106 and can contact the clamp 106. The connecting rod 108 is slidably arranged below the piston block 107 along the vertical direction, and the connecting rod 108 and the piston block 107 are slidably connected along the horizontal direction. The pressure regulating assembly is arranged on the base 100, and the pressure regulating assembly is connected to the second groove 104 for controlling the pressure in the second groove 104. The driving mechanism is arranged on the base 100, and the driving mechanism is used to control the connecting rod 108 to slide in the vertical direction.

[0024] When the upper die 102 and the lower die 101 are closed, the raw materials in the second groove 104 and the third groove fill the second groove 104 and the third groove and then flow into the first groove 103. A pressure regulating component is provided. After the raw material enters the first groove 103, the pressure regulating component controls the first groove 103 and the second groove 104 to be a negative pressure environment, thereby helping the raw material to move more easily to the second groove 104 after being squeezed by the upper die 102 in the first groove 103, thereby increasing the extension speed of the raw material and increasing the extension distance of the raw material. Through the cooperation of the piston block 107 and the driving mechanism, the extension distance of the raw material in the second groove 104 can be accurately controlled, thereby controlling the length of the clamp 106 and improving the forming quality of the workpiece. Through the cooperation of the pressure regulating component and the driving mechanism, the process and workstations of forging the workpiece can be reduced.

[0025] In this embodiment, the first groove 103 is cylindrical, the axis of the first groove 103 extends in the vertical direction, each second groove 104 has four side surfaces, the four side surfaces are opposite to each other, and two of the opposite side surfaces are arranged in the radial direction of the axis of the first groove 103, one of the two side surfaces of the second groove 104 arranged in the radial direction of the axis of the first groove 103, which is away from the axis of the first groove 103, is parallel to the axis of the first groove 103, and the other two opposite side surfaces of the second groove 104 are arranged in the circumferential direction of the axis of the first groove 103, and the distance between the two side surfaces of the second groove 104 arranged in the circumferential direction of the axis of the first groove 103 is from the upper side of the lower mold 101 to the lower side of the lower mold 101. The second groove 104 gradually approaches each other from the upper end to the lower end. The side surface of the second groove 104 close to the axis of the first groove 103 in the radial direction of the first groove 103 includes a first surface 109 and a second surface 110. The first surface 109 and the second surface 110 are arranged along the axial direction of the first groove 103, and the first surface 109 is closer to the first groove 103 than the second surface 110. The first surface 109 gradually moves away from the axis of the first groove 103 from the first groove 103 to the position in contact with the second surface 110. The second surface 110 is parallel to the axis of the first groove 103. The large end of the clamp 106 formed in the second groove 104 is closer to the upper surface of the lower mold 101 than the small end thereof, so as to facilitate the demolding of the workpiece.

[0026] In this embodiment, the two piston blocks 107 are respectively slidably connected to the two side surfaces of the second groove 104 in the circumferential direction of the first groove 103, and each piston block 107 is respectively slidably connected to the second surface 110 and the side surface of the second groove 104 in the radial direction of the first groove 103 away from the axis of the first groove 103. A spacing is provided between the two piston blocks 107. When the two piston blocks 107 are abutted, the second groove 104 can be blocked. When the two piston blocks 107 are abutted, the raw material in contact with the piston block 107 cannot pass through the piston block 107 under the suction of the pressure regulating assembly and the pressure of the upper mold 102, thereby facilitating the shaping of the raw material.

[0027] In this embodiment, a water supply device is provided on the base 100. The water supply device is connected to the second groove 104 and is located below the piston block 107. The water supply device is used to supply liquid to the second groove 104. After the workpiece is formed and demolding is completed, the two piston blocks 107 move away from each other. The water supply device passes liquid into the second groove 104 through the gap between the two piston blocks 107, which can effectively cool the lower mold 101 and clean the oxide of the workpiece attached to the surface of the second groove 104.

[0028] In this embodiment, a side of each piston block 107 close to another piston block 107 is provided with a boss 111 and a slide groove 112, a spacing is provided between the boss 111 and the slide groove 112, and the boss 111 and the slide groove 112 are consistent in shape and size, and the boss 111 on one piston block 107 is slidably connected with the slide groove 112 on the other piston block 107, and the bottom surface of the boss 111 gradually approaches the upper surface of the boss 111 from the side close to the piston block 107 to the side away from the piston block 107, and the slide groove 112 is provided at a distance from the piston block 107. The shape of 12 is adapted to the boss 111. When the two piston blocks 107 approach each other, the boss on one of the piston blocks 107 slides in the slide groove 112 on the other piston block 107, and the cross-sectional area of ​​the slide groove 112 connecting the second groove 104 and the receiving groove 115 is reduced. When the moving speed of the piston block 107 remains unchanged, the speed at which the liquid in the receiving groove 115 passes through the slide groove 112 increases, and the impact force of the liquid on the second groove 104 increases, which can further reduce the impurities in the raw material on the surface of the second groove 104.

[0029] In this embodiment, a sliding rod 113 is provided at one end of the connecting rod 108 close to the piston block 107, and the sliding rod 113 extends in the horizontal direction. The piston block 107 is slidably arranged on the sliding rod 113 in the horizontal direction, and the connecting rod 108 is located between the two piston blocks 107. Two springs 114 are sleeved on the sliding rod 113, and the two ends of one spring 114 are respectively connected to the connecting rod 108 and a piston block 107, and the two ends of the other spring 114 are respectively connected to the connecting rod 108 and the other piston block 107. After the workpiece is formed, when the connecting rod 108 approaches the first groove 103 in the vertical direction, the two piston blocks 107 move away from each other under the action of the spring 114, and the pressure regulating assembly and the water supply equipment can process the workpiece or the second groove 104 through the gap between the two piston blocks 107.

[0030] In this embodiment, a receiving groove 115 is provided on a surface of the base 100 close to the lower mold 101, the receiving groove 115 is connected to the second groove 104, and the size of the receiving groove 115 is consistent with the cross-sectional size of the second groove 104 on the lower surface of the lower mold 101, the piston block 107 can slide in the receiving groove 115, and the piston block 107 is in contact with the surface of the receiving groove 115, the connecting rod 108 passes through the base 100 and is slidably arranged in the receiving groove 115, the connecting rod 108 is hollow inside, and the connecting rod 108 is provided with an air hole 116, the air hole 116 is located in the receiving groove 115, the water supply equipment is connected to the connecting rod 108, and the water supply equipment is connected to the connecting rod 108, and the water supply equipment indirectly cools the lower mold 101 by supplying liquid to the receiving groove 115.

[0031] In this embodiment, the driving mechanism includes an electric push rod 117 and a connecting plate 118. The electric push rod 117 is vertically installed on the base 100, and the electric push rod 117 is retracted in the vertical direction. The connecting plate 118 is fixedly installed at one end of the electric push rod 117 away from the base 100. The connecting plate 118 is connected to the connecting rod 108. A sensor is provided on the connecting rod 108. The sensor and the electric push rod 117 are electrically connected. When the raw material contacts the piston block 107, a force is applied to the piston block 107. The piston block 107 transmits the force to the connecting rod 108. The sensor on the connecting rod 108 controls the start of the electric push rod 117 according to the received signal, thereby controlling the piston block 107 to actively move with the raw material.

[0032] In this embodiment, the pressure regulating mechanism includes an air pump and a pipeline. The air pump is connected to the connecting rod 108 through the pipeline, and the air pump and the connecting rod 108 are connected. A control panel is provided on the base 100. The control panel is electrically connected to the air pump, the electric push rod 117, and the water supply equipment, respectively, and is used to control the operation of the electric push rod 117, the air pump, and the water supply equipment. A limiter is provided in the second groove 104, and the limiter is electrically connected to the electric push rod 117 and the air pump respectively, and the limiter is slidably connected to the piston block 107. The limiter can control the electric push rod 117 and the air pump only when the upper mold 102 and the lower mold 101 are closed. When the piston block 107 slides and contacts the limiter, the electric push rod 117 will stop extending, and the air pump will stop working and immediately rotate in the opposite direction to fill gas into the second groove 104 to assist the electric push rod 117 in hindering the movement of the piston block 107 and reduce the force applied to the electric push rod 117. At the same time, after the workpiece is formed, as the electric push rod 117 pushes the workpiece upward through the connecting rod 108 and the piston block 107, the air pump continues to fill gas into the second groove 104 to blow away impurities in the second groove 104 and cool the workpiece.

[0033] The working principle and working method of a hot forging die for a magnetic pole of an automobile generator provided in this embodiment are as follows: First, the upper mold 102 and the lower mold 101 are separated, and the raw material is placed in the first groove 103. Then, the upper mold 102 is controlled to move closer to the lower mold 101. When the upper mold 102 and the lower mold 101 are closed, the raw material is squeezed and fills the entire first groove 103 and the third groove, and the raw material flows into the second groove 104. When the raw material flowing in the second groove 104 contacts the piston block 107, the piston block 107 transmits the force received to the connecting rod 108. After the sensor on the connecting rod 108 detects the preset signal value, it controls the electric push rod 117 to extend. The extension of the electric push rod 117 drives the connecting rod 108 to move downward through the connecting plate 118. The connecting rod 108 drives the piston block 107 to move downward in the second groove 104 along the second surface 110. During the process, the piston block 107 is always in contact with the raw material.

[0034] When the raw material in each second groove 104 contacts the two piston blocks 107, the piston block 107 actively moves along the flow of the raw material under the action of the electric push rod 117, and the raw material in contact with the piston block 107 will not flow into the slide groove 112. When the two piston blocks 107 slide downward in the second groove 104, the two piston blocks 107 approach each other under the action of the two side surfaces of the second groove 104 arranged in the circumferential direction of the axis of the first groove 103, and the boss 111 slides into the slide groove 112, and the slide groove 112 is gradually blocked.

[0035] When the upper mold 102 and the lower mold 101 are closed, the air pump starts to pump air from the receiving groove 115 and the second groove 104 through the connecting rod 108, and the excess gas in the receiving groove 115 and the second groove 104 is pumped out, and the pressure in the receiving groove 115 and the second groove 104 is reduced. As the two piston blocks 107 are completely in contact, the slide groove 112 is completely blocked by the protrusion, and the raw material and the receiving groove 115 are separated by the piston block 107. At this time, the pressure in the receiving groove 115 is still decreasing, and the electric push rod 117 continues to drive the piston block 107 to move downward; the raw material The raw material continues to flow in the second groove 104 until the piston block 107 contacts the limiter, the electric push rod 117 stops extending, and the piston block 107 stops moving. The air pump no longer extracts the gas in the receiving groove 115, but fills the receiving groove 115 with gas. The pressure in the receiving groove 115 increases, which generates a reverse thrust on the piston block 107, and cooperates with the electric push rod 117 to hinder the flow of the raw material and relieve the force on the electric push rod 117. The raw material in the second groove 104 no longer flows and remains still for a certain period of time, so that the raw material is shaped and a workpiece is formed.

[0036] After the raw material is formed into the workpiece, the upper mold 102 is away from the lower mold 101. At this time, the air pump is still filling gas into the receiving groove 115. The electric push rod 117 is controlled to shrink through the control panel. The electric push rod 117 drives the connecting plate 118 to approach the base 100. The connecting plate 118 pushes the piston block 107 to move upward through the connecting rod 108. The piston block 107 moves upward to the connection position of the first surface 109 and the second surface 110. In the process, the workpiece is pushed upward. While the piston block 107 moves, the two fitted piston blocks 107 are separated, and the protrusion slides in the slide groove 112. The gas in the receiving groove 115 is blown toward the workpiece through the slide groove 112. When the workpiece slides in the lower mold 101, a gap will be generated between the disc 105 and the first groove 103 and between the clamping jaws 106 and the second groove 104. The gas flows on the surface of the workpiece through the gap, which can cool the workpiece and blow away impurities in the second groove 104, and also facilitate the demolding of the workpiece.

[0037] After the workpiece is discharged, the air pump is controlled to stop working, and the connection between the air pump and the connecting rod 108 is disconnected, and the water supply equipment is started. The water supply equipment injects a certain amount of liquid into the receiving groove 115 through the hollow pipe inside the connecting rod 108 and the air hole 116, then stops and blocks the filling port to prevent the liquid from flowing back. The liquid rises to the second groove 104 and does not exceed the height of the piston block 107. Then the electric push rod 117 begins to extend and drives the piston block 107 to move downward. When the piston block 107 passes through the liquid surface, the liquid is squeezed and ejected from the gap between the slide groove 112 and the two piston blocks 107. The ejected liquid impacts the impurities attached to the surface of the second groove 104, causing them to be discharged from the second groove 104. As the piston block 107 moves downward, the cross-sectional area of ​​the liquid passing through the slide groove 112 gradually decreases, and the flow rate of the liquid discharged from the slide groove 112 increases, thereby improving the cleaning effect of the second groove 104.

[0038] After the two piston blocks 107 abut against each other, the slide groove 112 is completely blocked, the filling port will be opened, the piston block 107 slides in the receiving groove 115, the liquid in the receiving groove 115 is squeezed into the connecting rod 108 through the air hole 116, and discharged from the connecting rod 108 into the water supply equipment, thus completing a hot forging process.

[0039] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0040] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A hot forging die for automobile generator magnetic poles, characterized in that: include: A base, a lower die, an upper die, a forging assistance mechanism, a driving mechanism and a pressure regulating mechanism. The base is fixedly arranged, the lower die is fixedly arranged above the base, the upper die is slidably arranged above the lower die in the vertical direction, the upper die and the lower die can be molded together, a first groove and a second groove are provided on the lower die, the first groove is provided on the upper surface of the lower die, a plurality of second grooves are provided, and the plurality of second grooves are evenly distributed around the circumference of the first groove, the first groove is connected with the plurality of second grooves on the upper surface of the lower die, the second groove runs through the upper and lower surfaces of the lower die, a third groove is provided on the upper die, when the upper die and the lower die are molded together, the first groove and the second groove are both connected with the third groove, the raw material forms a workpiece in the first groove, the second groove and the third groove, the workpiece includes a disc and a clamp, the disc is located in the first groove and the third groove, and the clamp is located in the second groove; The number of forging assistance mechanisms is consistent with the number of second grooves. Each forging assistance mechanism includes a connecting rod and two piston blocks. The two piston blocks are slidably arranged in a second groove along the vertical direction, and the two piston blocks can separate the second groove. Each piston block is located below the clamp and can contact the clamp. The connecting rod is slidably arranged below the piston block along the vertical direction, and the connecting rod and the piston block are slidably connected along the horizontal direction. The pressure regulating assembly is arranged on the base, and the pressure regulating assembly is connected to the second groove for controlling the pressure in the second groove. The driving mechanism is arranged on the base, and the driving mechanism is used to control the connecting rod to slide in the vertical direction.

2. The hot forging die for automobile generator magnetic poles according to claim 1, characterized in that: The first groove is cylindrical, and each second groove has four side surfaces, the four side surfaces are opposite to each other in pairs, and two opposite side surfaces are arranged in the radial direction of the first groove, one side surface away from the axis of the first groove of the two side surfaces arranged in the radial direction of the first groove is parallel to the axis of the first groove, and the other two opposite side surfaces of the second groove are arranged in the circumferential direction of the first groove, and the distance between the two side surfaces of the second groove arranged in the circumferential direction of the first groove gradually approaches each other from the upper end to the lower end of the lower mold, and the side surface of the second groove close to the axis of the first groove in the radial direction of the first groove includes a first surface and a second surface, the first surface and the second surface are arranged in the axial direction of the first groove, and the first surface is closer to the first groove than the second surface, and the first surface gradually moves away from the axis of the first groove from the first groove to the position where it contacts the second surface, and the second surface is parallel to the axis of the first groove.

3. The hot forging die for automobile generator magnetic poles according to claim 2, characterized in that: The two piston blocks are respectively slidably connected to the two side surfaces of the second groove in the circumferential direction of the first groove, and each piston block is respectively slidably connected to the second surface and a side surface of the second groove in the radial direction of the first groove away from the axis of the first groove. A spacing is provided between the two piston blocks, and the second groove can be separated when the two piston blocks abut against each other.

4. The hot forging die for automobile generator magnetic poles according to claim 3, characterized in that: A water supply device is provided on the base, which is communicated with the second groove and is located below the piston block, and is used for supplying liquid into the second groove.

5. The hot forging die for automobile generator magnetic poles according to claim 4, characterized in that: The driving mechanism includes an electric push rod and a connecting plate. The electric push rod is vertically installed on the base and extends and retracts in the vertical direction. The connecting plate is fixedly installed on one end of the electric push rod away from the base. Multiple connecting rods are respectively connected to the connecting plate. Sensors are provided on the connecting rods, and the sensors are electrically connected to the electric push rod.

6. The automobile generator magnetic pole hot forging die according to claim 1, characterized in that: The pressure regulating mechanism comprises an air pump and a pipeline. The air pump is connected to a connecting rod through the pipeline, and the air pump and the connecting rod are in communication.

7. The automobile generator magnetic pole hot forging die according to claim 1, characterized in that: A control panel is arranged on the base, and the control panel is electrically connected with the air pump, the electric push rod and the water supply equipment respectively.

8. The hot forging die for automobile generator magnetic poles according to claim 3, characterized in that: A boss and a slide groove are provided on one side of each piston block close to another piston block, a spacing is provided between the boss and the slide groove, and the boss and the slide groove are consistent in shape and size, and the boss on one piston block is slidably connected to the slide groove on the other piston block, the bottom surface of the boss gradually approaches the upper surface of the boss from the side close to the piston block to the side away from the piston block, and the shape of the slide groove is adapted to the boss.

9. The automobile generator magnetic pole hot forging die according to claim 3, characterized in that: A sliding rod is provided at one end of the connecting rod close to the piston block, and the sliding rod extends in the horizontal direction. The piston block is slidably arranged on the sliding rod in the horizontal direction, and the connecting rod is located between the two piston blocks. Two springs are sleeved on the sliding rod, and the two ends of one of the springs are respectively connected to the connecting rod and a piston block, and the two ends of the other spring are respectively connected to the connecting rod and the other piston block.

10. The automobile generator magnetic pole hot forging die according to claim 1, characterized in that: A receiving groove is provided on a surface of the base close to the lower mold, the receiving groove is connected to the second groove, and the size of the receiving groove is consistent with the cross-sectional size of the second groove on the lower surface of the lower mold. The piston block can slide in the receiving groove, and the piston block contacts the surface of the receiving groove. The connecting rod passes through the base and is slidably set in the receiving groove. The connecting rod is hollow inside, and an air hole is provided on the connecting rod, and the air hole is located in the receiving groove.

Images