Precision forging forming die for mechanical transmission gear

Abstract

The invention relates to the technical field of gear forging, and discloses a mechanical transmission gear precision forging forming die which comprises a base, a sliding rail is fixedly connected to the top of the base, a sliding frame is slidably connected to the inner wall of the sliding rail, and an upper die is fixedly connected to the bottom of the sliding frame. An electric telescopic rod drives a lower die and a piston ring to slide downwards along the inner wall of an air pressure cylinder through a gear bottom plate, thrust generated by high air pressure acts on the inner wall of a circulation groove, a sliding plate is forced to slide upwards along the inner wall of a sliding through hole, and along with upward movement of the sliding plate, the circulation groove exceeds the highest position of the sliding through hole; high-pressure gas in the air pressure cylinder upwards enters the mounting through hole through a gap between a circulating groove and a sliding through hole, the gas in the mounting through hole acts on the side wall of a finished product by blocking a gap between a rotating plate and the mounting through hole, and the high-pressure gas is used for separating adhesion of the product and the lower mold; and fine deformation of a product caused by a traditional material pushing rod is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of gear forging equipment, in particular to a precision forging die for a mechanical transmission gear. Background Art

[0002] Mechanical transmission gears are precision parts widely used in transmitting precise motion and power, requiring high precision, high strength and high wear resistance. Their processing methods include mechanical processing, plastic forging pressure processing, powder metallurgy forming, etc. Among them, the hot forging forming process of transmission gears has many advantages such as high production efficiency, high material utilization rate, enhanced gear strength, energy saving, etc. It is an advanced net forming technology.

[0003] Among them, after the gear is completed with high-precision die-casting, the contact surface between the gear and the surrounding area is too large. If a conventional ejector rod is used at this time, excessive pressure will be generated on the contact surface between the ejector rod and the gear, resulting in slight deformation of the force-bearing position of the gear, affecting the fine effect of the gear. In response to the above problems, the following solutions are proposed. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a mechanical transmission gear precision forging die, comprising a base, a slide rail is fixedly connected to the top of the base, a slide frame is slidably connected to the inner wall of the slide rail, and an upper die is fixedly connected to the bottom of the slide frame;

[0005] The pneumatic mechanism includes a lower mold, a pneumatic cylinder and a piston ring for fixing and supporting the lower mold, and a discharge assembly for discharging the finished product inside the lower mold;

[0006] The top of the base is fixedly connected to the bottom of the air pressure cylinder, the inner wall of the air pressure cylinder is slidably connected to the outer wall of the piston ring, and the inner wall of the piston ring is fixedly connected to the outer wall of the lower mold.

[0007] Preferably, the discharge assembly includes a gear base plate fixedly connected to the inner wall of the lower mold, a plurality of mounting through holes are opened on the side wall of the gear base plate, a mounting plate one is fixedly connected to the inner wall of the plurality of mounting through holes, a sliding through hole is opened on the inner wall of the mounting plate one, a sliding plate is slidably connected to the inner wall of the sliding through hole, before use, the base is installed inside the die-casting equipment, and the sliding frame is fixedly connected to the upper end of the die-casting device, and then the molten metal is poured into the top of the gear base plate, and the die-casting device drives the upper mold downward through the sliding frame to extrude the molten metal, so that the molten metal is cooled and formed.

[0008] Preferably, the discharge assembly also includes a flow groove opened on the inner wall of the sliding plate, a tooth plate 1 is fixedly connected to the outer wall of the sliding plate, a gear rack is fixedly connected to the top of the mounting plate 1, and a mounting block is fixedly connected to the inner wall of the mounting through hole.

[0009] Preferably, the discharge assembly also includes a blocking rotating plate rotatably connected to the inner wall of the mounting block, a spring 1 is fixedly connected to the top of the blocking rotating plate, one end of the spring 1 away from the blocking rotating plate is fixedly connected to the inner wall of the mounting through hole, and a blocking assembly is slidably connected to the inner wall of the circulation groove.

[0010] Preferably, the discharging assembly also includes a toothed plate 2 that is rotatably connected to the bottom of the blocking rotating plate, the top of the mounting plate 1 is fixedly connected to a limiting rod, the outer wall of the limiting rod is slidably connected to the outer wall of the toothed plate 2, the bottom of the gear bottom plate is fixedly connected to an air pressure box, the bottom of the air pressure box is through-connected with a spring telescopic tube 1, the top of the base is fixedly connected to an electric telescopic rod, and one end of the electric telescopic rod away from the base is fixedly connected to the bottom of the spring telescopic tube 1. When the equipment needs to demould, the power of the electric telescopic rod is turned on, so that the electric telescopic rod drives the lower mold and the piston ring to slide downward along the inner wall of the air pressure cylinder through the gear bottom plate. At this time, the inner wall of the air pressure cylinder will change from normal air pressure to high air pressure, and the thrust generated by the high air pressure will act on the inner wall of the circulation groove, forcing the sliding plate to slide upward along the inner wall of the sliding through hole, and in this process, the sliding plate drives the toothed plate 1 to move up synchronously, and the upwardly moved toothed plate 1 forces the toothed plate 2 to slide downward along the outer wall of the limiting rod through the gear rack, and the downward movement of the toothed plate 2 will drive the blocking rotating plate to rotate downward with the mounting block as the center, presenting a Figure 6 state, at this time, a gap is formed between the rotating plate and the mounting through hole.

[0011] Preferably, the blocking component includes a sliding block slidably connected to the inner wall of the circulation groove, a groove is provided at the bottom of the sliding block, and a control component is connected to the side wall of the air pressure box. As the sliding plate moves upward, the circulation groove will exceed the highest position of the sliding through hole, so that the high-pressure gas inside the air pressure cylinder passes through the gap between the circulation groove and the sliding through hole to enter the installation through hole upward, and the gas inside the installation through hole acts on the side wall of the finished product through the gap between the blocking rotating plate and the installation through hole. Through the application of the above-mentioned components, high-pressure gas is used to separate the adhesion of the product and the lower mold, avoiding slight deformation of the product caused by traditional pushing rods. Utilizing the characteristics of the above-mentioned circulation groove to instruct the sliding plate to move up, a blocking component is provided inside the equipment. When the high-pressure gas inside the air pressure cylinder acts on the outer wall of the product, the high-pressure gas acts on the outer wall of the finished product, but the adhesion part in the area is not removed. At this time, the adhesion area and the air pressure cylinder are in a closed state, and the high-pressure gas is transmitted upward through the gap between the circulation groove, the sliding block, and the sliding through hole. At this time, the gas only has pressure but no flow rate.

[0012] Preferably, the control component includes a plurality of air pressure expansion tubes fixedly connected to the side walls of the air pressure box, a limit block is fixedly connected to the bottom of the gear bottom plate, and a sliding bracket is slidably connected to the inner wall of the limit block. The high-pressure gas completely breaks through the adhesion area, and the gas in the adhesion position can be discharged outwardly through the breakthrough position, so that the high-pressure gas in the air pressure cylinder is connected with the external environment. At this time, the high-pressure gas in the air pressure cylinder is transformed into low pressure, and when the gas passes through the gap between the circulation groove, the sliding block, and the sliding through hole, since the air pressure cylinder is connected with the external environment, the pressure is transformed into gas flow rate, and the air flow rate will act on the groove, forcing the groove to slide upward along the inner wall of the circulation groove, and the upward groove will completely block the gap between the circulation groove and the installation through hole, presenting a Figure 7 In the state of middle F, through the application of the above-mentioned components, after one of the mounting holes is completely free of adhesion, the air outlet is immediately blocked by the sliding block to prevent the thrust of the high-pressure gas inside other air cylinders from decreasing due to pressure release in a single mounting hole, thereby affecting the removal effect at other positions.

[0013] Preferably, the control component also includes an arcuate groove formed at an end of the sliding bracket away from the air pressure box, and the end of the sliding bracket away from the arcuate groove is fixedly connected to the side wall of the air pressure telescopic tube. Utilizing the characteristic of the above-mentioned electric telescopic rod driving the gear base plate to move downward, a control component is arranged inside the device. When the electric telescopic rod contracts, the electric telescopic rod drives the gear base plate to move downward, and the downward movement of the electric telescopic rod will drive the spring telescopic tube 1 to extend, so that the spring telescopic tube 1 extracts the gas inside the multiple air pressure telescopic tubes through the air pressure box, so that the air pressure telescopic tube contracts, and the contracted air pressure telescopic tube drives the sliding bracket to move along the inner wall of the limit block toward the direction of the air pressure box, and the sliding sliding bracket drives the arcuate groove away from the sliding block The top of the arc groove no longer restricts the sliding block and the sliding plate; when the equipment starts casting, the arc groove is on the inner wall of the circulation groove, restricting the upward movement of the sliding plate and the sliding block. When the top lower mold is squeezed by the upper mold, the pressure will be transmitted to the blocking rotating plate through the molten metal, causing the blocking rotating plate to have a tendency to rotate downward, and the blocking rotating plate forces the tooth plate one and the sliding plate to have an upward tendency through the tooth plate two and the gear rack. However, in this process, the arc groove restricts the upward movement of the sliding plate through the sliding block. Through the application of the above components, it is ensured that when the equipment is under pressure casting, the gear bottom plate and multiple blocking rotating plates are in a parallel state, thereby ensuring the flatness of the bottom of the finished product and improving the flatness of the bottom of the product.

[0014] Preferably, the control component also includes a hydraulic telescopic rod 1 fixedly connected to the outer wall of the sliding bracket, the other end of the hydraulic telescopic rod 1 is fixedly connected to the outer wall of the limit block, and a transmission tube is connected through the side wall of the hydraulic telescopic rod 1. Utilizing the characteristic that the above-mentioned sliding bracket slides along the inner wall of the limit block, a limiting ring is provided inside the equipment. When the sliding bracket is pulled toward the direction of the air pressure box by the air pressure telescopic tube, the hydraulic telescopic rod 1 will be extended. The extended hydraulic telescopic rod 1 extracts the liquid inside the corresponding hydraulic telescopic rod 2 through the transmission tube, so that several hydraulic telescopic rods 2 drive the limiting ring to move upward; and in the process of the limiting ring moving upward, the limiting ring will limit the retraction speed and height of multiple hydraulic telescopic rods 2, indirectly control the extension efficiency of multiple hydraulic telescopic rods 1, and at the same time control the sliding efficiency of multiple sliding brackets. Through the application of the above-mentioned components, the sliding speeds of multiple sliding brackets are guaranteed to be equal, avoiding the slow retraction speed of one of the arc surface grooves, which affects the sliding speed of subsequent sliding plates.

[0015] Preferably, a plurality of hydraulic telescopic rods 2 are fixedly connected to the bottom of the air pressure box, a limiting ring is fixedly connected to one end of the plurality of hydraulic telescopic rods 2 away from the air pressure box, and an end of the transmission pipe away from the hydraulic telescopic rod 1 is through-connected to the side wall of the hydraulic telescopic rod 2.

[0016] The present invention has the following beneficial effects:

[0017] (1) In order to solve the problem that the contact surface between the finished product and the inner wall of the lower mold is too large, the present invention provides a pneumatic mechanism and a discharge assembly inside the device. Before use, the base is installed inside the die pressing device, and the sliding frame is fixedly connected to the upper end of the die pressing device. Then, the molten metal is poured into the top of the gear bottom plate, and the die pressing device drives the upper mold downward to extrude the molten metal through the sliding frame, so that the molten metal is cooled and formed. When the device needs to be demolded, the power of the electric telescopic rod is turned on, so that the electric telescopic rod drives the lower mold and the piston ring to slide downward along the inner wall of the pneumatic cylinder through the gear bottom plate. At this time, the inner wall of the pneumatic cylinder will change from normal air pressure to high air pressure. The thrust generated by the high air pressure will act on the inner wall of the flow groove, forcing the sliding plate to slide upward along the inner wall of the sliding through hole. In this process, the sliding plate drives the tooth plate 1 to move upward synchronously. The upward tooth plate 1 forces the tooth plate 2 to slide downward along the outer wall of the limit rod through the gear frame, and the downward movement of the tooth plate 2 will drive the blocking rotating plate to rotate downward with the mounting block as the center, presenting a Figure 6 state, at this time, a gap is formed between the blocking rotating plate and the mounting through hole; and as the sliding plate moves upward, the flow groove will exceed the highest position of the sliding through hole, so that the high-pressure gas inside the air pressure cylinder passes through the gap between the flow groove and the sliding through hole and enters the mounting through hole upward, and the gas inside the mounting through hole acts on the side wall of the finished product through the gap between the blocking rotating plate and the mounting through hole. Through the application of the above components, high-pressure gas is used to separate the adhesion of the product and the lower mold, thereby avoiding slight deformation of the product caused by the traditional ejector rod.

[0018] (2) The present invention utilizes the characteristic that the electric telescopic rod drives the gear bottom plate to move downward, and a control component is arranged inside the device. When the electric telescopic rod contracts, the electric telescopic rod drives the gear bottom plate to move downward, and the downward movement of the electric telescopic rod drives the spring telescopic tube 1 to extend, so that the spring telescopic tube 1 extracts gas inside a plurality of air pressure telescopic tubes through the air pressure box, so that the air pressure telescopic tubes contract, and the contracted air pressure telescopic tubes drive the sliding bracket to move along the inner wall of the limit block toward the air pressure box, and the sliding sliding bracket drives the arc surface groove away from the top of the sliding block, so that the arc surface groove no longer restricts the sliding block and the sliding plate; and in the device When the equipment starts to cast, the arc groove is on the inner wall of the circulation groove, limiting the upward movement of the sliding plate and the sliding block. When the top lower mold is squeezed by the upper mold, the pressure will be transmitted to the blocking rotating plate through the molten metal, causing the blocking rotating plate to have a tendency to rotate downward, and the blocking rotating plate forces the tooth plate one and the sliding plate to have an upward tendency through the tooth plate two and the gear rack. However, in this process, the arc groove limits the upward movement of the sliding plate through the sliding block. Through the application of the above components, it is ensured that when the equipment is under pressure casting, the gear bottom plate and multiple blocking rotating plates are in a parallel state, thereby ensuring the flatness of the bottom of the finished product and improving the flatness of the bottom of the product.

[0019] (3) The present invention utilizes the characteristic that the above-mentioned sliding bracket slides along the inner wall of the limit block, and a limiting ring is arranged inside the device. When the sliding bracket is pulled by the pneumatic telescopic tube to move toward the pneumatic box, the hydraulic telescopic rod 1 will be extended. The extended hydraulic telescopic rod 1 extracts the liquid inside the corresponding hydraulic telescopic rod 2 through the transmission tube, so that several hydraulic telescopic rods 2 drive the limiting ring to move upward; and in the process of the limiting ring moving upward, the limiting ring will limit the speed and height of the contraction of multiple hydraulic telescopic rods 2, indirectly controlling the extension efficiency of multiple hydraulic telescopic rods 1, and at the same time controlling the sliding efficiency of multiple sliding brackets. Through the application of the above-mentioned components, the sliding speeds of multiple sliding brackets are guaranteed to be equal, avoiding the slow contraction speed of one of the arc surface grooves, which affects the sliding speed of the subsequent sliding plate.

[0020] (4) The present invention utilizes the characteristics of the above-mentioned flow groove indicating the sliding plate to move upward, and a blocking component is arranged inside the equipment. When the high-pressure gas inside the air cylinder acts on the outer wall of the product, two states will occur at this time. First, the high-pressure gas acts on the outer wall of the finished product, but the adhesion part in the area is not removed. At this time, the adhesion area and the air cylinder are in a closed state, and the high-pressure gas is transmitted upward through the gaps between the flow groove, the sliding block, and the sliding through hole. At this time, the gas only has pressure but no flow velocity; second, the high-pressure gas completely breaks through the adhesion area, and the gas in the adhesion position can be discharged outward through the breakthrough position, so that the high-pressure gas inside the air cylinder is connected with the external environment. At this time, the high-pressure gas inside the air cylinder is transformed into low pressure, and when the gas passes through the gaps between the flow groove, the sliding block, and the sliding through hole, since the air cylinder is connected with the external environment, the pressure is transformed into gas flow velocity, and the air flow velocity will act on the groove, forcing the groove to slide upward along the inner wall of the flow groove, and the upward groove will completely block the gap between the flow groove and the installation through hole, presenting as shown in the figure. Figure 7 In the state of middle F, through the application of the above-mentioned components, after one of the mounting holes is completely free of adhesion, the air outlet is immediately blocked by the sliding block to prevent the thrust of the high-pressure gas inside other air cylinders from decreasing due to pressure release in a single mounting hole, thereby affecting the removal effect at other positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0022] Figure 1 It is a schematic cross-sectional view of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 3 It is a cross-sectional schematic diagram of the air pressure mechanism of the present invention;

[0025] Figure 4 It is a cross-sectional schematic diagram of the discharge assembly of the present invention;

[0026] Figure 5 For the present invention Figure 4 An enlarged schematic diagram of center A;

[0027] Figure 6 It is a cross-sectional schematic diagram of the internal components of the discharge assembly of the present invention;

[0028] Figure 7 It is a cross-sectional schematic diagram of the plugging assembly of the present invention;

[0029] Figure 8 It is a cross-sectional schematic diagram of the control assembly of the present invention;

[0030] Fig. 9 For the present invention Figure 8 A magnified schematic diagram of middle C;

[0031] Fig.10 It is a schematic cross-sectional view of the internal components of the control component of the present invention;

[0032] Fig.11 It is a schematic diagram of the bottom component of the control component of the present invention.

[0033] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0034] In the figure: 1, base; 11, slide rail; 12, slide frame; 13, upper mold; 2, air pressure mechanism; 21, air pressure cylinder; 22, piston ring; 23, lower mold; 3, discharge assembly; 31, gear bottom plate; 32, mounting through hole; 33, mounting plate 1; 34, sliding through hole; 35, sliding plate; 36, flow groove; 37, gear plate 1; 38, gear frame; 39, mounting block; 310, blocking rotating plate; 311 , spring one; 312, tooth plate two; 313, limit rod; 314, air pressure box; 315, spring telescopic tube one; 316, electric telescopic rod; 4, blocking assembly; 41, sliding block; 42, groove; 5, control assembly; 51, air pressure telescopic tube; 52, limit block; 53, sliding bracket; 54, arc groove; 55, hydraulic telescopic rod one; 56, transmission pipe; 57, hydraulic telescopic rod two; 58, limiting ring. DETAILED DESCRIPTION

[0035] 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.

[0036] For example, see Figure 1 - Figure 6 The present invention is a mechanical transmission gear precision forging die, comprising a base 1, a slide rail 11 is fixedly connected to the top of the base 1, a slide frame 12 is slidably connected to the inner wall of the slide rail 11, and an upper die 13 is fixedly connected to the bottom of the slide frame 12;

[0037] The pneumatic mechanism 2 includes a lower mold 23, a pneumatic cylinder 21 and a piston ring 22 for fixing and supporting the lower mold 23, and a discharge assembly 3 for discharging the finished product inside the lower mold 23;

[0038] The top of the base 1 is fixedly connected to the bottom of the air pressure cylinder 21 , the inner wall of the air pressure cylinder 21 is slidably connected to the outer wall of the piston ring 22 , and the inner wall of the piston ring 22 is fixedly connected to the outer wall of the lower mold 23 .

[0039] The discharge assembly 3 includes a gear base plate 31 fixedly connected to the inner wall of the lower mold 23, a plurality of mounting holes 32 are opened on the side wall of the gear base plate 31, a mounting plate 33 is fixedly connected to the inner wall of the plurality of mounting holes 32, a sliding hole 34 is opened on the inner wall of the mounting plate 33, a sliding plate 35 is slidably connected to the inner wall of the sliding hole 34. Before use, the base 1 is installed inside the die-casting device, and the sliding frame 12 is fixedly connected to the upper end of the die-casting device, and then the molten metal is poured into the top of the gear base plate 31, and the die-casting device drives the upper mold 13 downward to extrude the molten metal through the sliding frame 12, so that the molten metal is cooled and formed.

[0040] The discharge assembly 3 also includes a flow groove 36 opened on the inner wall of the sliding plate 35, a tooth plate 37 is fixedly connected to the outer wall of the sliding plate 35, a gear rack 38 is fixedly connected to the top of the mounting plate 33, and a mounting block 39 is fixedly connected to the inner wall of the mounting through hole 32.

[0041] The discharge assembly 3 also includes a blocking rotating plate 310 rotatably connected to the inner wall of the mounting block 39, a spring 311 is fixedly connected to the top of the blocking rotating plate 310, an end of the spring 311 away from the blocking rotating plate 310 is fixedly connected to the inner wall of the mounting through hole 32, and a blocking assembly 4 is slidably connected to the inner wall of the flow groove 36.

[0042] The discharging assembly 3 also includes a tooth plate 2 312 rotatably connected to the bottom of the blocking rotating plate 310, a limiting rod 313 is fixedly connected to the top of the mounting plate 1 33, the outer wall of the limiting rod 313 is slidably connected to the outer wall of the tooth plate 2 312, the bottom of the gear bottom plate 31 is fixedly connected to an air pressure box 314, the bottom of the air pressure box 314 is through-connected with a spring telescopic tube 1 315, the top of the base 1 is fixedly connected to an electric telescopic rod 316, the end of the electric telescopic rod 316 away from the base 1 is fixedly connected to the bottom of the spring telescopic tube 1 315, when the equipment needs to be demoulded, the power supply of the electric telescopic rod 316 is turned on, so that the electric telescopic rod 316 drives the lower mold 23 and the piston ring 22 to slide downward along the inner wall of the air cylinder 21 through the gear bottom plate 31. At this time, the inner wall of the air cylinder 21 will change from normal air pressure to high air pressure. The thrust generated by the high air pressure will act on the inner wall of the flow groove 36, forcing the sliding plate 35 to slide upward along the inner wall of the sliding through hole 34. In this process, the sliding plate 35 drives the tooth plate 1 37 to move upward synchronously. The upward tooth plate 1 37 forces the tooth plate 2 312 to slide downward along the outer wall of the limit rod 313 through the gear rack 38. The downward movement of the tooth plate 2 312 will drive the blocking rotating plate 310 to rotate downward with the mounting block 39 as the center, presenting a Figure 6state, at this time, a gap is formed between the blocking rotating plate 310 and the mounting through hole 32.

[0043] For example 2, please refer to Figure 7 - Fig.11 The present invention is a mechanical transmission gear precision forging forming die. On the basis of the first embodiment, the blocking component 4 includes a sliding block 41 slidably connected to the inner wall of the circulation groove 36. A groove 42 is provided at the bottom of the sliding block 41. A control component 5 is connected through the side wall of the air pressure box 314. As the sliding plate 35 moves upward, the circulation groove 36 will exceed the highest position of the sliding through hole 34, so that the high-pressure gas inside the air pressure cylinder 21 passes through the gap between the circulation groove 36 and the sliding through hole 34 and enters the inside of the installation through hole 32 upward, and the gas inside the installation through hole 32 passes through the gap between the blocking rotating plate 310 and the installation through hole 32. On the side wall of the finished product, through the application of the above-mentioned components, high-pressure gas is used to separate the adhesion between the product and the lower mold 23, so as to avoid slight deformation of the product caused by the traditional push rod. By utilizing the characteristics of the above-mentioned flow groove 36 to indicate the upward movement of the sliding plate 35, a blocking component 4 is arranged inside the equipment. When the high-pressure gas inside the air cylinder 21 acts on the outer wall of the product, the high-pressure gas acts on the outer wall of the finished product, but the adhesion part in the area is not removed. At this time, the adhesion area and the air cylinder 21 are in a closed state, and the high-pressure gas is transmitted upward through the gap between the flow groove 36, the sliding block 41, and the sliding through hole 34. At this time, the gas only has pressure but no flow rate.

[0044] The control component 5 includes a plurality of air pressure expansion tubes 51 fixedly connected to the side wall of the air pressure box 314, a limit block 52 fixedly connected to the bottom of the gear bottom plate 31, and a sliding bracket 53 slidably connected to the inner wall of the limit block 52. The high-pressure gas completely breaks through the adhesion area, and the gas in the adhesion position can be discharged outward through the breakthrough position, so that the high-pressure gas inside the air pressure cylinder 21 is connected to the external environment. At this time, the high-pressure gas inside the air pressure cylinder 21 is transformed into low pressure, and when the gas passes through the gap between the circulation groove 36, the sliding block 41, and the sliding through hole 34, since the air pressure cylinder 21 is connected to the external environment, the pressure is transformed into the gas flow rate at this time, and the air flow rate will act on the groove 42, forcing the groove 42 to slide upward along the inner wall of the circulation groove 36, and the upward groove 42 will completely block the gap between the circulation groove 36 and the mounting through hole 32, presenting as shown in the figure. Figure 7 In the state of middle F, through the application of the above-mentioned components, after one of the mounting holes 32 is completely free of adhesion, the air outlet is immediately blocked by the sliding block 41 to prevent a single mounting hole 32 from releasing pressure, causing the thrust of the high-pressure gas inside other air cylinders 21 to decrease, thereby affecting the removal effect at other positions.

[0045] The control component 5 also includes an arc groove 54 provided at one end of the sliding bracket 53 away from the air pressure box 314. The end of the sliding bracket 53 away from the arc groove 54 is fixedly connected to the side wall of the air pressure telescopic tube 51. The control component 5 is arranged inside the device by utilizing the characteristic that the electric telescopic rod 316 drives the gear bottom plate 31 to move downward. When the electric telescopic rod 316 contracts, the electric telescopic rod 316 drives the gear bottom plate 31 to move downward. The downward movement of the electric telescopic rod 316 will drive the spring telescopic tube 1 315 to extend, so that the spring telescopic tube 1 315 extracts the gas inside the multiple air pressure telescopic tubes 51 through the air pressure box 314, so that the air pressure telescopic tubes 51 contract. The contracted air pressure telescopic tubes 51 drive the sliding bracket 53 to move along the inner wall of the limit block 52 toward the direction of the air pressure box 314, and the sliding sliding bracket 53 drives the arc groove 54 away from the sliding The top of the movable block 41 makes the arc groove 54 no longer restrict the sliding block 41 and the sliding plate 35; when the equipment starts to cast, the arc groove 54 is on the inner wall of the circulation groove 36, restricting the upward movement of the sliding plate 35 and the sliding block 41. When the top lower mold 23 is squeezed by the upper mold 13, the pressure will be transmitted to the blocking rotating plate 310 through the molten metal, so that the blocking rotating plate 310 has a tendency to rotate downward, and the blocking rotating plate 310 forces the tooth plate 1 37 and the sliding plate 35 to have an upward trend through the tooth plate 2 312 and the gear frame 38. However, in this process, the arc groove 54 restricts the upward movement of the sliding plate 35 through the sliding block 41. Through the application of the above-mentioned components, it is ensured that when the equipment is under pressure casting, the gear bottom plate 31 and the multiple blocking rotating plates 310 are in a parallel state, thereby ensuring the flatness of the bottom of the finished product and improving the flatness of the bottom of the product.

[0046] The control assembly 5 also includes a hydraulic telescopic rod 55 fixedly connected to the outer wall of the sliding bracket 53, the other end of the hydraulic telescopic rod 55 is fixedly connected to the outer wall of the limit block 52, and a transmission pipe 56 is connected through the side wall of the hydraulic telescopic rod 55. Taking advantage of the characteristics of the sliding bracket 53 sliding along the inner wall of the limit block 52, a limiting ring 58 is arranged inside the device. When the sliding bracket 53 is pulled by the air pressure telescopic pipe 51 to move toward the air pressure box 314, the hydraulic telescopic rod 55 will be extended, and the extended hydraulic telescopic rod 55 is extracted through the transmission pipe 56. The liquid inside the corresponding hydraulic telescopic rod 2 57 causes several hydraulic telescopic rods 2 57 to drive the limiting ring 58 to move upward; and in the process of the limiting ring 58 moving upward, the limiting ring 58 will limit the speed and height of the contraction of multiple hydraulic telescopic rods 2 57, indirectly controlling the extension efficiency of multiple hydraulic telescopic rods 1 55, and at the same time controlling the sliding efficiency of multiple sliding brackets 53. Through the application of the above-mentioned components, the sliding speeds of multiple sliding brackets 53 are guaranteed to be equal, avoiding the slow contraction speed of one of the arc grooves 54, which affects the sliding speed of the subsequent sliding plate 35.

[0047] The bottom of the air pressure box 314 is fixedly connected with a plurality of hydraulic telescopic rods 57, and one end of the hydraulic telescopic rods 57 away from the air pressure box 314 is fixedly connected with a limiting ring 58, and one end of the transmission pipe 56 away from the hydraulic telescopic rod 1 55 is connected to the side wall of the hydraulic telescopic rod 2 57.

[0048] A specific application of this embodiment is as follows: before use, the base 1 is installed inside the die pressing device, and the sliding frame 12 is fixedly connected to the upper end of the die pressing device, and then the molten metal is poured into the top of the gear bottom plate 31, and the die pressing device drives the upper mold 13 to squeeze the molten metal downward through the sliding frame 12, so that the molten metal is cooled and formed; when the device needs to be demolded, the power supply of the electric telescopic rod 316 is turned on, so that the electric telescopic rod 316 drives the lower mold 23 and the piston ring 22 along the air pressure cylinder 21 through the gear bottom plate 31. The inner wall slides downward, and at this time the inner wall of the air pressure cylinder 21 changes from normal air pressure to high air pressure. The thrust generated by the high air pressure will act on the inner wall of the flow slot 36, forcing the sliding plate 35 to slide upward along the inner wall of the sliding through hole 34. In this process, the sliding plate 35 drives the tooth plate 1 37 to move upward synchronously. The upward tooth plate 1 37 forces the tooth plate 2 312 to slide downward along the outer wall of the limit rod 313 through the gear rack 38. The downward movement of the tooth plate 2 312 will drive the blocking rotating plate 310 to rotate downward with the mounting block 39 as the center, presenting a Figure 6 state, at this time, a gap is formed between the blocking rotating plate 310 and the mounting through hole 32; and as the sliding plate 35 moves upward, the flow groove 36 will exceed the highest position of the sliding through hole 34, so that the high-pressure gas inside the air pressure cylinder 21 passes through the gap between the flow groove 36 and the sliding through hole 34 and enters the mounting through hole 32 upward, and the gas inside the mounting through hole 32 acts on the side wall of the finished product through the gap between the blocking rotating plate 310 and the mounting through hole 32. Through the application of the above-mentioned components, high-pressure gas is used to separate the adhesion between the product and the lower mold 23, thereby avoiding slight deformation of the product caused by the traditional pushing rod.

[0049] Taking advantage of the characteristic that the electric telescopic rod 316 drives the gear bottom plate 31 to move downward, a control component 5 is provided inside the device. When the electric telescopic rod 316 contracts, the electric telescopic rod 316 drives the gear bottom plate 31 to move downward, and the downward movement of the electric telescopic rod 316 drives the spring telescopic tube 1 315 to extend, so that the spring telescopic tube 1 315 extracts gas inside a plurality of air pressure telescopic tubes 51 through the air pressure box 314, so that the air pressure telescopic tubes 51 contract, and the contracted air pressure telescopic tubes 51 drive the sliding bracket 53 to move along the inner wall of the limit block 52 toward the direction of the air pressure box 314, and the sliding sliding bracket 53 drives the arc surface groove 54 away from the top of the sliding block 41, so that the arc surface groove 54 no longer restricts the sliding block 41 and the sliding plate 35; When the equipment starts to cast, the arc groove 54 is located on the inner wall of the circulation groove 36, limiting the upward movement of the sliding plate 35 and the sliding block 41. When the top lower mold 23 is squeezed by the upper mold 13, the pressure will be transmitted to the blocking rotating plate 310 through the molten metal, causing the blocking rotating plate 310 to have a tendency to rotate downward, and the blocking rotating plate 310 forces the tooth plate 1 37 and the sliding plate 35 to have an upward tendency through the tooth plate 2 312 and the gear rack 38. However, in this process, the arc groove 54 limits the upward movement of the sliding plate 35 through the sliding block 41. Through the application of the above-mentioned components, it is ensured that when the equipment is under pressure casting, the gear bottom plate 31 and the multiple blocking rotating plates 310 are in a parallel state, thereby ensuring the flatness of the bottom of the finished product and improving the flatness of the bottom of the product.

[0050] Taking advantage of the characteristic that the sliding bracket 53 slides along the inner wall of the limit block 52, a limiting ring 58 is arranged inside the device. When the sliding bracket 53 is pulled by the pneumatic telescopic tube 51 to move toward the pneumatic box 314, the hydraulic telescopic rod 1 55 will be extended. The extended hydraulic telescopic rod 1 55 extracts the liquid inside the corresponding hydraulic telescopic rod 2 57 through the transmission tube 56, so that several hydraulic telescopic rods 2 57 drive the limiting ring 58 to move upward. In the process of the limiting ring 58 moving upward, the limiting ring 58 will limit the speed and height of the contraction of multiple hydraulic telescopic rods 2 57, indirectly controlling the extension efficiency of multiple hydraulic telescopic rods 1 55, and controlling the sliding efficiency of multiple sliding brackets 53 at the same time. Through the application of the above-mentioned components, the sliding speeds of multiple sliding brackets 53 are guaranteed to be equal, avoiding the slow contraction speed of one of the arc grooves 54, which affects the sliding speed of the subsequent sliding plate 35.

[0051] Taking advantage of the above-mentioned flow groove 36 to instruct the sliding plate 35 to move upward, a blocking component 4 is provided inside the equipment. When the high-pressure gas inside the air cylinder 21 acts on the outer wall of the product, two states will occur at this time. First, the high-pressure gas acts on the outer wall of the finished product, but the adhesion part in the area is not removed. At this time, the adhesion area and the air cylinder 21 are in a closed state, and the high-pressure gas is transmitted upward through the gap between the flow groove 36, the sliding block 41, and the sliding through hole 34. At this time, the gas only has pressure but no flow velocity; second, the high-pressure gas completely breaks through the adhesion area and is in a closed state. The gas at the connection position can be discharged outward through the breakthrough position, so that the high-pressure gas inside the air cylinder 21 is connected to the external environment. At this time, the high-pressure gas inside the air cylinder 21 changes to low pressure, and when the gas passes through the gap between the flow groove 36, the sliding block 41, and the sliding through hole 34, since the air cylinder 21 is connected to the external environment, the pressure is converted into gas flow rate at this time, and the flow rate of air will act on the groove 42, forcing the groove 42 to slide upward along the inner wall of the flow groove 36, and the upward groove 42 will completely block the gap between the flow groove 36 and the installation through hole 32, presenting as shown in the figure. Figure 7 In the state of middle F, through the application of the above-mentioned components, after one of the mounting holes 32 is completely free of adhesion, the air outlet is immediately blocked by the sliding block 41 to prevent a single mounting hole 32 from releasing pressure, causing the thrust of the high-pressure gas inside other air cylinders 21 to decrease, thereby affecting the removal effect at other positions.

[0052] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A mechanical transmission gear precision forging die, comprising a base (1), a slide rail (11) fixedly connected to the top of the base (1), a slide frame (12) slidably connected to the inner wall of the slide rail (11), an upper die (13) fixedly connected to the bottom of the slide frame (12), characterized in that: Also includes: A pneumatic mechanism (2), the pneumatic mechanism (2) comprising a lower mold (23), a pneumatic cylinder (21) and a piston ring (22) for fixing and supporting the lower mold (23), and a discharge assembly (3) for discharging a finished product from the lower mold (23); The top of the base (1) is fixedly connected to the bottom of the air pressure cylinder (21), the inner wall of the air pressure cylinder (21) is slidably connected to the outer wall of the piston ring (22), and the inner wall of the piston ring (22) is fixedly connected to the outer wall of the lower mold (23).

2. The mechanical transmission gear precision forging die according to claim 1, characterized in that: The discharge assembly (3) comprises a gear bottom plate (31) fixedly connected to the inner wall of the lower mold (23); a plurality of mounting through holes (32) are provided on the side wall of the gear bottom plate (31); a mounting plate 1 (33) is fixedly connected to the inner wall of the plurality of mounting through holes (32); a sliding through hole (34) is provided on the inner wall of the mounting plate 1 (33); a sliding plate (35) is slidably connected to the inner wall of the sliding through hole (34).

3. The mechanical transmission gear precision forging die according to claim 2, characterized in that: The discharge assembly (3) further comprises a flow groove (36) provided on the inner wall of the sliding plate (35); a tooth plate (37) is fixedly connected to the outer wall of the sliding plate (35); a gear rack (38) is fixedly connected to the top of the mounting plate (33); and a mounting block (39) is fixedly connected to the inner wall of the mounting through hole (32).

4. The mechanical transmission gear precision forging die according to claim 3, characterized in that: The discharge assembly (3) further comprises a blocking rotating plate (310) rotatably connected to the inner wall of the mounting block (39); a spring 1 (311) is fixedly connected to the top of the blocking rotating plate (310); an end of the spring 1 (311) away from the blocking rotating plate (310) is fixedly connected to the inner wall of the mounting through hole (32); and a blocking assembly (4) is slidably connected to the inner wall of the flow slot (36).

5. The mechanical transmission gear precision forging die according to claim 4, characterized in that: The discharging assembly (3) further comprises a tooth plate 2 (312) rotatably connected to the bottom of the blocking rotating plate (310); a limit rod (313) is fixedly connected to the top of the mounting plate 1 (33); an outer wall of the limit rod (313) is slidably connected to the outer wall of the tooth plate 2 (312); a pneumatic box (314) is fixedly connected to the bottom of the gear bottom plate (31); a spring telescopic tube 1 (315) is through-connected to the bottom of the pneumatic box (314); an electric telescopic rod (316) is fixedly connected to the top of the base (1); an end of the electric telescopic rod (316) away from the base (1) is fixedly connected to the bottom of the spring telescopic tube 1 (315).

6. The mechanical transmission gear precision forging die according to claim 5, characterized in that: The blocking component (4) comprises a sliding block (41) slidably connected to the inner wall of the circulation groove (36), a groove (42) is provided at the bottom of the sliding block (41), and a control component (5) is connected through the side wall of the air pressure box (314).

7. The mechanical transmission gear precision forging die according to claim 6, characterized in that: The control assembly (5) comprises a plurality of pneumatic telescopic tubes (51) fixedly connected to the side wall of the pneumatic box (314); a limit block (52) is fixedly connected to the bottom of the gear bottom plate (31); and a sliding bracket (53) is slidably connected to the inner wall of the limit block (52).

8. The mechanical transmission gear precision forging die according to claim 7, characterized in that: The control assembly (5) further comprises an arcuate groove (54) formed at one end of the sliding bracket (53) away from the air pressure box (314); the end of the sliding bracket (53) away from the arcuate groove (54) is fixedly connected to the side wall of the air pressure telescopic tube (51).

9. The mechanical transmission gear precision forging die according to claim 8, characterized in that: The control assembly (5) further comprises a hydraulic telescopic rod (55) fixedly connected to the outer wall of the sliding bracket (53); the other end of the hydraulic telescopic rod (55) is fixedly connected to the outer wall of the limit block (52); and a transmission pipe (56) is connected through the side wall of the hydraulic telescopic rod (55).

10. The mechanical transmission gear precision forging die according to claim 8, characterized in that: The bottom of the air pressure box (314) is fixedly connected to a plurality of hydraulic telescopic rods (57), one end of the plurality of hydraulic telescopic rods (57) away from the air pressure box (314) is fixedly connected to a limiting ring (58), and one end of the transmission pipe (56) away from the hydraulic telescopic rod (55) is connected to the side wall of the hydraulic telescopic rod (57).

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