One-step forming processing device for external teeth and inner hole of one-way gear and its processing technology

Abstract

The present invention provides a one-step forming processing device for the outer teeth and inner hole of a one-way gear and a processing technology thereof, comprising a mold, an expansion assembly provided inside a hole-opening shaft, and a pressing piece fixedly provided at the bottom of the expansion assembly, the pressing piece being in contact with the bottom wall of the hole-opening shaft, and a second electric push rod fixedly provided inside a punching head, the expansion assembly and the second electric push rod being connected by a telescopic shaft transmission. The present invention drives the expansion assembly and the pressing piece downward by the second electric push rod, and the downward movement of the pressing piece causes the gear to be completely holed. An external inflation device inflates the expansion assembly, and after the inflation, the expansion assembly presses against the inner wall of the gear. A hydraulic cylinder drives the punching head and the hole-opening shaft upward, and the expansion assembly drives the gear to move upward and out of the groove at the top of the mold. When processing the gear, the processing device effectively avoids the problem of incomplete hole opening of the gear, and the gear can be directly demolded from the mold after forming, which is beneficial to improving the processing efficiency of the gear and is convenient for use.

Description

Technical Field

[0001] The present invention relates to the technical field of gear processing, in particular to a one-step forming processing device for the outer teeth and inner hole of a one-way gear and a processing technology thereof. Background Art

[0002] The automobile engine is a device that provides power for the car. It is the heart of the car and determines the car's power, economy, stability and environmental protection. The engine is started by the starter before starting. The starter can convert the battery's electrical energy into mechanical energy, drive the engine flywheel to rotate and start the engine. Before the engine runs under its own power, it must be rotated with the help of external force. The process of the engine transitioning from a static state to being able to run independently with the help of external force is called engine starting. A one-way gear is required in the starter. The one-way gear can only rotate in one direction, thereby avoiding damage to the engine caused by reverse starting of the starter.

[0003] The existing technology has the following deficiencies: the working steps of the existing processing device are to manually place the profile into the groove opened at the top of the mold, and the hydraulic cylinder drives the punch head and the hole-opening shaft to move downward, the punch head presses the profile into the groove, and the hole-opening shaft opens a hole in the middle of the profile, so that the profile is cold-pressed into a one-way gear with a hole in the middle. However, in order to avoid deformation of the bottom of the profile during cold pressing, the bottom surface of the mold groove is usually flat. This will result in incomplete opening of the hole gear when some profiles are formed (the middle hole of the gear does not completely penetrate the gear), and the gear needs to be processed twice, which reduces the processing efficiency of the gear. Secondly, after the gear is pressed inside the groove, it is not convenient to remove the gear. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a one-step forming processing device for the outer teeth and inner hole of a one-way gear and a processing technology thereof.

[0005] The present invention solves the above-mentioned technical problems through the following technical means: a one-time forming processing device for the outer teeth and inner hole of a one-way gear, comprising a mold, a punching head is provided on the top of the mold, a hole-opening shaft is fixedly provided at the bottom center of the punching head, a hydraulic cylinder is provided on the top of the punching head, and the punching head and the hydraulic cylinder are connected by a telescopic shaft, the hole-opening shaft is hollow, and an expansion component is provided inside the hole-opening shaft, and a pressure piece is fixedly provided at the bottom of the expansion component, the pressure piece contacts the bottom wall of the hole-opening shaft, and a second electric push rod is fixedly provided inside the punching head, and the expansion component and the second electric push rod are connected by a telescopic shaft; and after the profile is formed into a gear, the second electric push rod drives the expansion component and the pressure piece to move downward, and the expansion component expands and presses against the inner wall of the gear after being inflated;

[0006] Preferably, in order to facilitate the demoulding of the gear, a push block is slidably provided in the groove of the mold, and a first electric push rod is fixedly provided at the bottom of the mold, and the push block and the first electric push rod are connected by a telescopic shaft. Before the hydraulic cylinder moves upward, the first electric push rod drives the push block to move upward, and the push block moves upward to push the gear out of the groove, thereby preventing the gear from falling off the expansion assembly when the expansion assembly moves upward;

[0007] Preferably, in order to facilitate demoulding of the gear, lubricating oil can be added to the mold groove before demoulding to facilitate demoulding;

[0008] Preferably, the expansion assembly includes an airbag, a hollow block and a catheter, and the hollow block is fixed on the top of the airbag, and the hollow block is conductively connected to the airbag, the hollow block is connected to the second electric push rod through a telescopic shaft transmission, the airbag is fixed on the top of the pressing piece, the catheter is fixed in the punching head, and the catheter is conductively connected to the hollow block through a bellows. Since the hollow block will be driven up and down by the second electric push rod, the catheter is conductively connected to the hollow block through the bellows. In this way, when the hollow block moves down, the bellows can be stretched accordingly, and when the hollow block moves up, the bellows can be shortened accordingly, which facilitates the connection between the catheter and the hollow block.

[0009] Preferably, the airbag is connected to the external air supply device via a conduit, and the conduit is made of a flexible material to facilitate air conduction;

[0010] Preferably, a plurality of rubber strips are fixedly provided on the outside of the airbag, and the rubber strips are symmetrically distributed about the center of the airbag. The provided rubber strips effectively protect the outer wall of the airbag, thereby extending the service life of the airbag;

[0011] Preferably, a translation assembly is provided on the top of the hydraulic cylinder, the translation assembly includes a slider, a screw rod, a motor and a top plate, and the slider is fixed to the top of the hydraulic cylinder, the motor is fixed to one end of the top plate, the screw rod and the top plate are movably connected through a support plate, and the screw rod and the motor are connected through an output shaft transmission, and the slider is threadedly connected to the screw rod;

[0012] Preferably, a shock-absorbing assembly is provided at the bottom of the mold, which includes a base, a support plate, and a spring. The support plate and the base are connected by a spring, and the mold is fixed on the support plate. In this way, during stamping, the spring can buffer the mold, thereby extending the service life of the mold.

[0013] The present invention also provides a processing technology for a one-step forming processing device for the outer teeth and inner hole of a one-way gear, and the specific steps are as follows:

[0014] Place the profile into the groove at the top of the mold;

[0015] The hydraulic cylinder drives the punch head and the hole-opening shaft to move downward, and the punch head and the hole-opening shaft cold-press the profile into a gear;

[0016] The second electric push rod drives the expansion assembly and the pressure piece to move downward. The pressure piece moves downward to completely open the gear hole. The external inflation device inflates the expansion assembly. After the expansion assembly is inflated, it presses against the inner wall of the gear.

[0017] The hydraulic cylinder drives the punch head and the hole-opening shaft to move upward, and the expansion assembly drives the gear to move upward and out of the groove at the top of the mold.

[0018] Beneficial effects of the present invention:

[0019] 1. The present invention uses a second electric push rod to drive the expansion assembly and the pressure piece to move downward. The downward movement of the pressure piece allows the gear to be completely opened. An external inflation device inflates the expansion assembly. After the expansion assembly is inflated, it presses against the inner wall of the gear. The hydraulic cylinder drives the punch head and the hole-opening shaft to move upward. The expansion assembly drives the gear to move upward and out of the groove at the top of the mold. When processing the gear, this processing device effectively avoids the problem of incomplete gear opening. After the gear is formed, the gear can be directly demolded from the mold, which is beneficial to improving the processing efficiency of the gear and is easy to use.

[0020] 2. In the present invention, after the expansion assembly drives the gear to move upward, the motor drives the screw to rotate clockwise, and the screw drives the hydraulic cylinder to translate through the slider. After the gear translates to the next processing position, the air supply device evacuates the air bag through the conduit. At this time, the air bag does not press against the inner wall of the gear, and the gear falls to the next processing position for processing. In this way, there is no need to manually transfer the gear, which is beneficial to reducing labor costs and improving gear production efficiency.

[0021] 3. The present invention provides a shock-absorbing assembly at the bottom of the mold. The shock-absorbing assembly includes a base, a support plate, and a spring. The support plate and the base are connected by a spring, and the mold is fixed on the support plate. In this way, during stamping, the spring can buffer the mold, thereby extending the service life of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is an overall longitudinal sectional view of the present invention;

[0023] Figure 2 This is a diagram showing the state in which the profile of the present invention is placed in a mold;

[0024] Figure 3 It is a stamping state diagram of the present invention;

[0025] Figure 4 Schematic diagram of the inflation of the expansion assembly of the present invention;

[0026] Figure 5 Schematic diagram of the gear shifting of the present invention;

[0027] Figure 6 is a longitudinal cross-sectional view of the expansion assembly of the present invention;

[0028] Figure 7It is a schematic diagram of the overall structure of the expansion assembly of the present invention.

[0029] In the figure: 1. mold; 11. groove; 12. push block; 13. first electric push rod; 2. punch head; 3. hole-opening shaft; 4. hydraulic cylinder; 5. translation assembly; 6. shock-absorbing assembly; 7. expansion assembly; 71. airbag; 711. rubber strip; 72. hollow block; 721. bellows; 73. conduit; 8. pressing piece; 9. second electric push rod; 10. profile. DETAILED DESCRIPTION

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of 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. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0031] It should be noted that when an element is referred to as being “fixed to” another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or there may be an intermediate element.

[0032] Example 1

[0033] The present invention relates to a device for producing a hollow shaft 3 in a hollow structure, wherein the hollow shaft 3 is provided on the top of the hollow structure 1 and the hollow shaft 3 is provided on the bottom of the hollow structure 1. The hollow shaft 3 is provided on the bottom of the hollow structure 1 and the hollow shaft 3 is provided on the top of the hollow structure 1. The hollow shaft 3 is provided on the bottom of the hollow structure 1 and the hollow shaft 3 is provided on the bottom of the hollow structure 1. The hollow shaft 3 is provided on the bottom of the hollow structure 1 and the hollow shaft 3 is provided on the bottom of the hollow structure 1.

[0034] See also Figure 1As shown, the one-time forming processing device for the outer teeth and inner hole of the one-way gear described in this embodiment is different from the prior art in that the hole-opening shaft 3 is hollow, and an expansion component 7 is provided inside the hole-opening shaft 3, and a pressing piece 8 is fixedly provided at the bottom of the expansion component 7, and the pressing piece 8 is in contact with the bottom wall of the hole-opening shaft 3, and a second electric push rod 9 is fixedly provided inside the punch head 2, and the expansion component 7 and the second electric push rod 9 are connected by a telescopic shaft transmission; and after the profile 10 is formed into the gear, the second electric push rod 9 drives the expansion component 7 and the pressing piece 8 to move downward, and the expansion component 7 expands after being inflated and presses against the inner wall of the gear;

[0035] The specific processing steps are:

[0036] See also Figure 2 As shown, the profile 10 is placed into the groove 11 at the top of the mold 1;

[0037] See also Figure 3 As shown, the hydraulic cylinder 4 drives the punch head 2 and the hole-making shaft 3 to move downward, and the punch head 2 and the hole-making shaft 3 cold-press the profile 10 into a gear;

[0038] See also Figure 4 As shown, the second electric push rod 9 drives the expansion component 7 and the pressure piece 8 to move downward, and the pressure piece 8 moves downward to completely open the hole of the gear. The external inflation device inflates the expansion component 7, and the expansion component 7 is pressed against the inner wall of the gear after inflation;

[0039] See also Figure 5 As shown, the hydraulic cylinder 4 drives the punch head 2 and the hole-opening shaft 3 to move upward, and the expansion assembly 7 drives the gear to move upward and out of the groove 11 at the top of the mold 1;

[0040] Furthermore, in order to facilitate the demoulding of the gear, a push block 12 is slidably provided in the groove 11 of the mold 1, and a first electric push rod 13 is fixedly provided at the bottom of the mold 1. The push block 12 and the first electric push rod 13 are connected by a telescopic shaft. Before the hydraulic cylinder 4 moves upward, the first electric push rod 13 drives the push block 12 to move upward, and the push block 12 moves upward to push the gear out of the groove 11, thereby preventing the gear from falling off the expansion assembly 7 when the expansion assembly 7 moves upward.

[0041] Furthermore, in order to facilitate demoulding of the gear, lubricating oil may be added to the mold groove 11 before demoulding to facilitate demoulding;

[0042] Furthermore, the present embodiment also discloses a specific structure of the expansion assembly 7, which includes an airbag 71, a hollow block 72 and a conduit 73. The hollow block 72 is fixed to the top of the airbag 71, and the hollow block 72 is conductively connected to the airbag 71. The hollow block 72 is connected to the second electric push rod 9 through a telescopic shaft transmission. The airbag 71 is fixed to the top of the pressing piece 8, and the conduit 73 is fixed in the punching head 2, and the conduit 73 is conductively connected to the hollow block 72 through a bellows 721. Since the hollow block 72 will be driven up and down by the second electric push rod 9, the conduit 73 is conductively connected to the hollow block 72 through the bellows 721. In this way, when the hollow block 72 moves down, the bellows 721 can be stretched accordingly, and when the hollow block 72 moves up, the bellows 721 can be shortened accordingly, which facilitates the connection between the conduit 73 and the hollow block 72.

[0043] Furthermore, a plurality of rubber strips 711 are fixedly provided on the outside of the airbag 71 . The rubber strips 711 are symmetrically distributed about the center of the airbag 71 . The provided rubber strips 711 effectively protect the outer wall of the airbag 71 , thereby extending the service life of the airbag 71 .

[0044] Example 2

[0045] The present invention relates to a device for producing a hollow shaft 3 in a hollow structure, wherein the hollow shaft 3 is provided on the top of the hollow structure 1 and the hollow shaft 3 is provided on the bottom of the hollow structure 1. The hollow shaft 3 is provided on the bottom of the hollow structure 1 and the hollow shaft 3 is provided on the top of the hollow structure 1. The hollow shaft 3 is provided on the bottom of the hollow structure 1 and the hollow shaft 3 is provided on the bottom of the hollow structure 1. The hollow shaft 3 is provided on the bottom of the hollow structure 1 and the hollow shaft 3 is provided on the bottom of the hollow structure 1.

[0046] See also Figure 1 As shown, the one-time forming processing device for the outer teeth and inner hole of the one-way gear described in this embodiment is different from the prior art in that the hole-opening shaft 3 is hollow, and an expansion component 7 is provided inside the hole-opening shaft 3, and a pressing piece 8 is fixedly provided at the bottom of the expansion component 7, and the pressing piece 8 is in contact with the bottom wall of the hole-opening shaft 3, and a second electric push rod 9 is fixedly provided inside the punch head 2, and the expansion component 7 and the second electric push rod 9 are connected by a telescopic shaft transmission; and after the profile 10 is formed into the gear, the second electric push rod 9 drives the expansion component 7 and the pressing piece 8 to move downward, and the expansion component 7 expands after being inflated and presses against the inner wall of the gear;

[0047] The specific processing steps are:

[0048] See also Figure 2 As shown, the profile 10 is placed into the groove 11 at the top of the mold 1;

[0049] See also Figure 3 As shown, the hydraulic cylinder 4 drives the punch head 2 and the hole-making shaft 3 to move downward, and the punch head 2 and the hole-making shaft 3 cold-press the profile 10 into a gear;

[0050] See also Figure 4 As shown, the second electric push rod 9 drives the expansion component 7 and the pressure piece 8 to move downward, and the pressure piece 8 moves downward to completely open the hole of the gear. The external inflation device inflates the expansion component 7, and the expansion component 7 is pressed against the inner wall of the gear after inflation;

[0051] See also Figure 5 As shown, the hydraulic cylinder 4 drives the punch head 2 and the hole-making shaft 3 to move upward, and the expansion assembly 7 drives the gear to move upward and out of the groove 11 at the top of the mold 1. When processing the gear, this processing device effectively avoids the problem of incomplete gear hole making, and the gear can be directly demolded from the mold 1 after forming, which is beneficial to improving the processing efficiency of the gear and is convenient for use.

[0052] Furthermore, in order to facilitate the demoulding of the gear, a push block 12 is slidably provided in the groove 11 of the mold 1, and a first electric push rod 13 is fixedly provided at the bottom of the mold 1. The push block 12 and the first electric push rod 13 are connected by a telescopic shaft. Before the hydraulic cylinder 4 moves upward, the first electric push rod 13 drives the push block 12 to move upward, and the push block 12 moves upward to push the gear out of the groove 11, thereby preventing the gear from falling off the expansion assembly 7 when the expansion assembly 7 moves upward.

[0053] Furthermore, in order to facilitate demoulding of the gear, lubricating oil may be added to the mold groove 11 before demoulding to facilitate demoulding;

[0054] Furthermore, the present embodiment also discloses a specific structure of the expansion assembly 7, which includes an airbag 71, a hollow block 72 and a conduit 73. The hollow block 72 is fixed to the top of the airbag 71, and the hollow block 72 is conductively connected to the airbag 71. The hollow block 72 is connected to the second electric push rod 9 through a telescopic shaft transmission. The airbag 71 is fixed to the top of the pressing piece 8, and the conduit 73 is fixed in the punching head 2, and the conduit 73 is conductively connected to the hollow block 72 through a bellows 721. Since the hollow block 72 will be driven up and down by the second electric push rod 9, the conduit 73 is conductively connected to the hollow block 72 through the bellows 721. In this way, when the hollow block 72 moves down, the bellows 721 can be stretched accordingly, and when the hollow block 72 moves up, the bellows 721 can be shortened accordingly, which facilitates the connection between the conduit 73 and the hollow block 72.

[0055] Furthermore, the air bag 71 is connected to the external air supply device via a conduit 73, and the conduit 73 is made of a flexible material to facilitate air conduction;

[0056] Furthermore, a plurality of rubber strips 711 are fixedly provided on the outside of the airbag 71. The rubber strips 711 are symmetrically distributed about the center of the airbag 71. The rubber strips 711 effectively protect the outer wall of the airbag 71, thereby extending the service life of the airbag 71.

[0057] See also Figure 1 As shown, further, in actual use, we found that since the expansion component 7 can drive the gear to move up and demould, in the prior art, after the gear is moved out of the mold 1, it needs to be manually transferred to other processing positions for processing, which increases labor costs. Therefore, we set a translation component 5 on the top of the hydraulic cylinder 4. The translation component 5 includes a slider, a screw rod, a motor and a top plate, and the slider is fixed to the top of the hydraulic cylinder 4, the motor is fixed to one end of the top plate, the screw rod and the top plate are movably connected through a support plate, and the screw rod and the motor are connected by an output shaft transmission, and the slider is threadedly connected to the screw rod;

[0058] When the expansion assembly 7 drives the gear to move upward, the motor drives the screw to rotate clockwise, and the screw drives the hydraulic cylinder 4 to translate through the slider. After the gear translates to the next processing position, the air supply device evacuates the air bag 71 through the conduit 73. At this time, the air bag 71 does not press against the inner wall of the gear, and the gear falls to the next processing position for processing. In this way, there is no need to manually transfer the gear, which is beneficial to reducing labor costs and improving gear production efficiency.

[0059] Furthermore, since the punch head 2 exerts a large impact force on the mold 1 during stamping, we also provide a shock-absorbing assembly 6 at the bottom of the mold 1. The shock-absorbing assembly 6 includes a base, a support plate, and a spring. The support plate is connected to the base through a spring, and the mold 1 is fixed on the support plate. In this way, during stamping, the spring can buffer the mold 1, thereby extending the service life of the mold 1.

[0060] Example 3

[0061] The present invention relates to a device for producing a hollow shaft 3 in a hollow structure, wherein the hollow shaft 3 is provided on the top of the hollow structure 1 and the hollow shaft 3 is provided on the bottom of the hollow structure 1. The hollow shaft 3 is provided on the bottom of the hollow structure 1 and the hollow shaft 3 is provided on the top of the hollow structure 1. The hollow shaft 3 is provided on the bottom of the hollow structure 1 and the hollow shaft 3 is provided on the bottom of the hollow structure 1. The hollow shaft 3 is provided on the bottom of the hollow structure 1 and the hollow shaft 3 is provided on the bottom of the hollow structure 1.

[0062] See also Figure 1 As shown, the processing technology of the one-step forming processing device for the one-way gear outer teeth and inner hole of this embodiment is as follows:

[0063] See also Figure 2 As shown, the profile 10 is placed into the groove 11 at the top of the mold 1;

[0064] See also Figure 3 As shown, the hydraulic cylinder 4 drives the punch head 2 and the hole-making shaft 3 to move downward, and the punch head 2 and the hole-making shaft 3 cold-press the profile 10 into a gear;

[0065] See also Figure 4 As shown, the second electric push rod 9 drives the expansion component 7 and the pressure piece 8 to move downward, and the pressure piece 8 moves downward to completely open the hole of the gear. The external inflation device inflates the expansion component 7, and the expansion component 7 is pressed against the inner wall of the gear after inflation;

[0066] See also Figure 5 As shown, the hydraulic cylinder 4 drives the punch head 2 and the hole-opening shaft 3 to move upward, and the expansion assembly 7 drives the gear to move upward and out of the groove 11 at the top of the mold 1.

[0067] It should be noted that, in this document, if there are relational terms such as first and second, etc., they are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0068] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A one-step forming processing device for the outer teeth and inner hole of a one-way gear, comprising a die (1), a punch head (2) provided on the top of the die (1), and a hole-opening shaft (3) fixedly provided at the center of the bottom of the punch head (2), characterized in that: Also includes An expansion assembly (7) is arranged inside the opening shaft (3); A pressing piece (8) is fixedly arranged at the bottom of the expansion assembly (7), and the pressing piece (8) contacts the bottom wall of the opening shaft (3); The second electric push rod (9) is fixedly arranged inside the punch head (2), and the expansion assembly (7) and the second electric push rod (9) are connected by a telescopic shaft transmission; and after the profile (10) is formed into a gear, the second electric push rod (9) drives the expansion assembly (7) and the pressing piece (8) to move downward, and the expansion assembly (7) expands and presses against the inner wall of the gear after being inflated.

2. The one-step forming processing device for the external teeth and inner hole of a one-way gear according to claim 1, characterized in that: A hydraulic cylinder (4) is provided on the top of the punching head (2), and the punching head (2) and the hydraulic cylinder (4) are connected by a telescopic shaft transmission; a push block (12) is slidably provided in the groove (11) of the mold (1), and a first electric push rod (13) is fixedly provided at the bottom of the mold (1), and the push block (12) and the first electric push rod (13) are connected by a telescopic shaft transmission.

3. The one-step forming processing device for the external teeth and inner hole of a one-way gear according to claim 2, characterized in that: The expansion assembly (7) includes an airbag (71), a hollow block (72) and a catheter (73), wherein the hollow block (72) is fixed on the top of the airbag (71), the hollow block (72) is conductively connected to the airbag (71), the hollow block (72) is connected to the second electric push rod (9) via a telescopic shaft transmission, and the airbag (71) is fixed on the top of the pressing piece (8).

4. The one-step forming processing device for the external teeth and inner hole of a one-way gear according to claim 3, characterized in that: The conduit (73) is fixed in the punching head (2), and the conduit (73) is conductively connected to the hollow block (72) via a bellows (721).

5. The one-step forming processing device for the external teeth and inner hole of a one-way gear according to claim 4, characterized in that: A plurality of adhesive strips (711) are fixedly arranged on the outside of the airbag (71), and the adhesive strips (711) are distributed symmetrically about the center of the airbag (71).

6. The one-step forming processing device for the external teeth and inner hole of a one-way gear according to claim 5, characterized in that: A translation assembly (5) is provided on the top of the hydraulic cylinder (4), and the translation assembly (5) includes a slider, a screw rod, a motor and a top plate, wherein the slider is fixed to the top of the hydraulic cylinder (4), the motor is fixed to one end of the top of the top plate, the screw rod and the top plate are movably connected through a support plate, and the screw rod and the motor are connected through an output shaft transmission, and the slider is threadedly connected to the screw rod.

7. The one-step forming processing device for the external teeth and inner hole of a one-way gear according to claim 6, characterized in that: A shock-absorbing assembly (6) is provided at the bottom of the mold (1), and the shock-absorbing assembly (6) comprises a base, a support plate, and a spring. The support plate and the base are connected via the spring, and the mold (1) is fixed on the support plate.

8. A method for processing the one-step forming processing device for the external teeth and inner hole of a one-way gear according to any one of claims 1 to 7, characterized in that: The processing technology comprises the following steps: S1: Place the profile (10) into the groove (11) at the top of the mold (1); S2: The hydraulic cylinder (4) drives the punching head (2) and the hole-opening shaft (3) to move downward, and the punching head (2) and the hole-opening shaft (3) cold-press the profile (10) into a gear; S3: The second electric push rod (9) drives the expansion component (7) and the pressure piece (8) to move downward, and the pressure piece (8) moves downward to completely open the hole of the gear. The external inflation device inflates the expansion component (7), and the expansion component (7) presses against the inner wall of the gear after inflation; S4: The hydraulic cylinder (4) drives the punch head (2) and the hole-opening shaft (3) to move upward, and the expansion assembly (7) drives the gear to move upward and out of the groove (11) at the top of the mold (1).

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