Alloy chain wheel outer tooth stamping equipment

Abstract

The invention relates to the field of stamping equipment, in particular to alloy chain wheel outer tooth stamping equipment. The invention provides alloy chain wheel outer tooth stamping equipment which comprises stamping equipment, hydraulic cylinders which are symmetrically distributed are installed at the top of the stamping equipment, an upper stamping die is fixedly connected between the ends of piston rods of the hydraulic cylinders, a lower stamping die is arranged on a workbench of the stamping equipment, and a piece ejecting mechanism is arranged in the lower stamping die. Transportation assemblies symmetrically distributed along the stamping lower die are further arranged on a workbench of the stamping equipment, a guide frame is fixedly connected to the stamping equipment, a movable frame is connected to the guide frame in a sliding mode, and the movable frame is provided with a clamping assembly. The stamping upper die is in linkage with the clamping assembly, synchronous stamping and material taking operation is achieved, and manual material taking is eliminated; the collecting rod and the buffer disc ensure soft landing and stacking soft contact of the chain wheel, and the damage rate is reduced; the equipment realizes full-process automatic closed loop, improves the productivity and qualified rate, and reduces the labor cost.

Description

Technical Field

[0001] The present invention relates to the field of stamping equipment, and particularly to an alloy sprocket external tooth stamping equipment. Background Art

[0002] In modern industrial production, as a core power transmission component of motorcycles, bicycles, and various industrial transmission systems, the forming precision of the external teeth of alloy sprockets plays a decisive role in the transmission efficiency and service life of the equipment.

[0003] At present, the production of alloy sprockets mainly relies on precision stamping processes. However, existing stamping equipment has many significant deficiencies in key links such as blank picking, alignment, and waste treatment, seriously restricting the improvement of production efficiency. During traditional stamping, after the sprocket blank is stamped and formed, it often remains above the mold and cannot be automatically separated. Currently, manual picking by workers or secondary grasping operations using simple robotic arms are mostly adopted, which not only significantly increases the labor intensity of workers, but also easily causes fatigue due to long-term repetitive operations, leading to safety accidents. In addition, the waste generated during the blanking process directly falls to the bottom of the equipment. Due to the lack of an effective collection and cleaning mechanism, the waste accumulates continuously. These accumulated wastes not only affect the normal operation of the equipment, but may also cause equipment failures. Enterprises must regularly stop the machine to clean the bottom of the equipment, which undoubtedly further reduces the production efficiency of the equipment.

[0004] Based on the above situation, there is an urgent need to develop an alloy sprocket external tooth stamping equipment. Summary of the Invention

[0005] In order to overcome the disadvantages of existing alloy sprocket external tooth stamping equipment, such as low picking efficiency, equipment failures and shutdowns caused by waste accumulation, and reduced production efficiency of the equipment, the technical problem to be solved is: to provide an alloy sprocket external tooth stamping equipment.

[0006] Technical Solution: An alloy sprocket external tooth stamping equipment, including a stamping equipment. Symmetrically distributed hydraulic cylinders are installed on the top of the stamping equipment, and a stamping upper die is fixedly connected between the ends of their piston rods. A stamping lower die is provided on the workbench of the stamping equipment. A ejector mechanism is arranged in the stamping lower die. Transport components symmetrically distributed along the stamping lower die are also provided on the workbench of the stamping equipment. A guiding frame is fixedly connected to the stamping equipment, and a moving frame is slidably connected thereto. The moving frame is provided with a clamping component. An extrusion part is fixedly connected to the stamping upper die, and an inclined chute is arranged thereon. Both ends of the inclined chute are provided with release notches. A convex column is arranged on the moving frame, and the convex column is arranged in the inclined chute. A support part is also fixedly connected to the guiding frame, and the extrusion part slides vertically on the support part.

[0007] In one embodiment, the transport component receiving platform at the input is horizontally arranged, and the transport component receiving platform at the output is inclined.

[0008] In one embodiment, the clamping component includes clamping members symmetrically and slidably connected to the moving frame. A connecting spring is connected between the symmetrically distributed clamping members. The connecting spring is wound around the moving frame. A fixed seat is fixedly connected to each clamping member, and a rotating member is rotatably connected thereto. A connecting torsion spring is connected between the rotating member and the adjacent fixed seat. Each connecting torsion spring is wound around the rotating member. Symmetrically distributed limiting members are fixedly connected to the stamping device, and each is provided with an accurate guiding inclined surface and is accurately located on the moving track line of the rotating member.

[0009] In one embodiment, a material guiding plate integrating guiding and discharging is fixedly connected to the stamping device on the side close to the clamping member, and it is provided with an arc-shaped opening for automatic material leakage; the material guiding plate is arranged flush with the height of the stamping lower die.

[0010] In one embodiment, a rotating disk is rotatably connected to the bottom plate of the stamping device. Symmetrically distributed collecting rods are clamped on the rotating disk through positioning pins, and a buffer rubber sleeve is coated on the outside of each collecting rod.

[0011] In one embodiment, symmetrically distributed telescopic members are fixedly connected to each collecting rod, and a buffer disk is connected between their telescopic ends. The buffer disk can slide vertically along the collecting rod. A buffer spring is connected between the telescopic part of each telescopic member and the bottom plate of the adjacent collecting rod.

[0012] In one embodiment, a fixed frame is fixedly connected to the stamping upper die, and a vertical rack is fixedly connected to its bottom. A first rotating shaft is rotatably connected to the stamping device, and a one-way gear is fixedly connected thereto. The vertical rack and the one-way gear mesh with each other. A second rotating shaft is also rotatably connected to the stamping device. Bevel gears are fixedly connected to the first rotating shaft and the second rotating shaft, and the two bevel gears mesh with each other. A transmission wheel is fixedly connected to the second rotating shaft, and a synchronous wheel is fixedly connected to the bottom of the rotating disk. A synchronous belt is wound between the transmission wheel and the synchronous wheel.

[0013] In one embodiment, handles that can be folded and operated are symmetrically and rotatably connected to the tops of the collecting rods.

[0014] Advantages of the present invention: By controlling the clamping assembly through the movement linkage of the upper stamping die, the present invention realizes synchronous operation of stamping and material taking, eliminates the manual material taking link, and greatly improves the production efficiency; the collecting rod and the buffer plate achieve soft landing of the sprocket and soft contact during stacking, reduce the collision damage rate, and ensure the complete form of the sprocket through axial regular stacking, improving the product qualification rate; the stamping stroke linkage drives the rotary disk for 180° precise indexing, and the fully loaded collecting rod automatically switches; the foldable handle enables quick loading and unloading. This equipment realizes a full-process automated closed-loop of stamping, material taking, collection, and waste treatment, improves the comprehensive production capacity, and reduces the labor cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 FIG. is a schematic three-dimensional structure diagram of the present invention.

[0016] Figure 2 FIG. is a schematic three-dimensional structure diagram of components such as the hydraulic cylinder, guide frame, and moving frame of the present invention.

[0017] Figure 3 FIG. is a schematic three-dimensional structure diagram of components such as the upper stamping die, extrusion part, and guide plate of the present invention.

[0018] Figure 4 FIG. is a schematic three-dimensional structure diagram of components such as the clamping part, rotating part, and connecting spring of the present invention.

[0019] Figure 5 FIG. is a schematic three-dimensional structure diagram of the fixed seat, rotating part, and connecting torsion spring of the present invention.

[0020] Figure 6 FIG. is a schematic cross-sectional view of components such as the fixed frame, bevel gear, and one-way gear of the present invention.

[0021] Figure 7 FIG. is a schematic cross-sectional view of components such as the handle, buffer plate, and buffer spring of the present invention.

[0022] In the reference numerals: 1, stamping equipment; 11, hydraulic cylinder; 12, upper stamping die; 13, transportation component; 14, lower stamping die; 15, guide frame; 16, moving frame; 17, clamping part; 18, extrusion part; 19, limiting part; 110, rotating part; 111, guide plate; 112, support part; 113, connecting spring; 114, fixed seat; 115, connecting torsion spring; 116, collecting rod; 117, rotary disk; 2, fixed frame; 21, vertical rack; 22, bevel gear; 23, one-way gear; 24, transmission wheel; 25, synchronous belt; 26, synchronous wheel; 27, first rotating shaft; 28, second rotating shaft; 3, buffer plate; 31, telescopic part; 32, buffer spring; 33, handle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The present invention will be further described below with reference to the embodiments shown in the drawings.

[0024] Embodiment 1: An external tooth stamping device for an alloy sprocket, as Figure 1 and Figure 2 shown, includes a stamping device 1 as the main structure. Symmetrically distributed hydraulic cylinders 11 are installed on the top of the stamping device 1. A stamping upper die 12 is fixedly connected between the ends of the piston rods. A stamping lower die 14 is provided on the working table of the stamping device 1, which is directly below the stamping upper die 12. The two cooperate to complete stamping forming. A part ejecting mechanism is provided in the stamping lower die 14.

[0025] Place the to-be-processed sheet material on the stamping lower die 14 (i.e., the female die) to ensure its precise alignment with the stamping upper die 12 (i.e., the male die). Start the hydraulic cylinder 11 to drive the piston rod to drive the stamping upper die 12 to move downward and close with the stamping lower die 14. The male die and the female die cooperate to complete the stamping of the sheet material to form the sprocket external tooth structure.

[0026] After stamping is completed, the hydraulic cylinder 11 drives the stamping upper die 12 to reset; the part ejecting mechanism in the stamping lower die 14 ejects the sprocket, facilitating subsequent material taking. The worker drags the sheet material to the material taking position, takes out the sprocket and then pushes the sheet material back to the stamping area to continue processing the un-stamped part until the sheet material is completely stamped. The waste material embedded in the sheet material will fall to the bottom of the device.

[0027] In addition, transport components 13 symmetrically distributed along the stamping lower die 14 are also provided on the working table of the stamping device 1 for conveying the to-be-processed sheet material to the stamping area. Among them: the receiving platform of the transport component 13 at the input is horizontally arranged for easy placement of the sheet material; the receiving platform of the transport component 13 at the output is inclined for waste discharge.

[0028] Initially, a collection box can be placed below the transport component 13 at the output. The to-be-processed sheet material is input through the horizontal receiving platform of the transport component 13 and accurately placed on the working platform of the stamping lower die 14. After stamping is completed, when the sprocket is ejected, it is automatically taken out by the material taking mechanism. The waste material generated by stamping is embedded in the sheet material. When the transport component 13 continues to convey the sheet material backward, the waste material moves with the sheet material to the inclined receiving platform of the transport component 13 and precisely drops from the inclined platform into the collection box to complete waste discharge.

[0029] As described in the background art, during the stamping forming process of the sprocket blank, traditional equipment requires manual secondary material taking operations, resulting in low production efficiency. Therefore, an automatic material taking mechanism is designed, which can automatically take out the sprocket from the sheet material after stamping is completed, thus realizing high-efficiency and automated production.

[0030] As Figure 2 and Figure 3Specifically, the stamping device 1 is fixedly connected to a guide frame 15, on which a mobile frame 16 is slidably connected. The mobile frame 16 is equipped with a clamping assembly for grabbing and releasing the sprocket. In addition, an extrusion member 18 is fixedly connected to the stamping upper die 12, which is provided with an inclined chute. The mobile frame 16 is equipped with a boss that is located in the inclined chute. The boss and the inclined chute cooperate to control the horizontal displacement of the mobile frame 16. The guide frame 15 is also fixedly connected to a support member 112 for limiting the vertical sliding path of the extrusion member 18 to ensure the accuracy of the movement.

[0031] To achieve automated material removal, the inclined chute is equipped with a release notch at each end, allowing the protrusion of the movable frame 16 to smoothly exit the chute of the extrusion member 18, preventing jamming and improving the reliability of the equipment. When the upper stamping die 12 is stamping downward, the movable frame 16 remains stationary to avoid interference with the stamping process. Simultaneously, this design incorporates a hydraulic cylinder 11 to drive the upper stamping die 12 up and down, and drives the movable frame 16 horizontally via the extrusion member 18 to complete the sprocket clamping and withdrawal action.

[0032] Initially, the upper die 12 is at its second highest point, the movable frame 16 is in its reset position, and the clamping assembly is retracted, ready to receive the stamped sprocket. The hydraulic cylinder 11 drives the upper die 12 downward, completing the stamping of the sheet metal. At this point, the extrusion element 18 slides downward along the support element 112, and the protrusion of the movable frame 16 exits the notch at the right end of the inclined chute, keeping the movable frame 16 stationary and preventing interference with the stamping process.

[0033] After the stamping is completed, the hydraulic cylinder 11 drives the stamping upper die 12 to move upward, and the extrusion piece 18 moves upward accordingly. During this process: the extrusion piece 18 drives the moving frame 16 to move leftward through the cooperation of the inclined slide and the protrusion, and the moving frame 16 further drives the clamping assembly to move leftward to clamp the sprocket placed on the sheet.

[0034] When the hydraulic cylinder 11 drives the upper stamping die 12 downward again, the extrusion member 18 moves in the opposite direction, driving the movable frame 16 to move rightward and reset, while simultaneously withdrawing the sprocket from the stamping area, completing the material removal action. Through the above steps, the equipment realizes the automatic linkage between stamping and material removal, significantly improving production efficiency.

[0035] like Figure 2 、 Figure 4 and Figure 5As shown in the figure, the clamping assembly includes clamping members 17 symmetrically and slidably connected to the moving frame 16. A connecting spring 113 that provides a reset clamping force is connected between the symmetrically distributed clamping members 17. The connecting spring 113 is wound around the moving frame 16. A fixed seat 114 serving as a support base is fixedly connected to each clamping member 17, and a rotating member 110 serving as a trigger swing arm is rotatably connected thereto. The forced rotation range of the rotating member 110 is 0 - 90°.

[0036] A connecting torsion spring 115 that provides an upward reset torque is connected between each rotating member 110 and the adjacent fixed seat 114. Each connecting torsion spring 115 is wound around the rotating member 110 respectively. Symmetrically distributed limiting members 19 are fixedly connected to the stamping device 1, which are used to forcibly trigger the opening and closing actions of the clamping members 17. Precision guiding inclined surfaces are provided thereon. The limiting members 19 are precisely located on the moving trajectory line of the rotating member 110 and are used to forcibly contact the rotating member 110 when the moving frame 16 reciprocates, thereby realizing the opening and closing actions of the clamping members 17.

[0037] When the moving frame 16 moves to the left, the clamping members 17, the fixed seats 114, and the rotating members 110 also move synchronously. When the rotating member 110 moving to the left contacts the inclined surface of the limiting member 19, the limiting member 19 will resist the rotating member 110, so that the two clamping members 17 move outward, being in an open state and located outside the sprocket. At this time, the connecting spring 113 will be stretched.

[0038] As the rotating member 110 continues to move with the clamping member 17, when the rotating member 110 passes over the inclined surface of the limiting member 19, under the elastic force of the connecting spring 113, the two clamping members 17 move inward to reset and are caught in the teeth of the sprocket.

[0039] When the moving frame 16 moves in the reverse direction to reset, the clamping member 17 clamping the sprocket will pull it to the right together, and the clamping member 17 and the rotating member 110 also move synchronously therewith. When the rotating member 110 moving in the reverse direction contacts the limiting member 19, the limiting member 19 will resist the rotating member 110, causing the rotating member 110 to flip downward. At this time, the connecting torsion spring 115 will be twisted.

[0040] When the rotating member 110 moving to the right passes over the limiting member 19, under the action of the connecting torsion spring 115, the rotating member 110 flips upward to reset. As the moving frame 16 continues to move to the right, the clamping member 17 will pull the sprocket to continue moving to the right, causing the sprocket to move out of the stamping area.

[0041] As Figure 2As shown, a material guide plate 111 integrating guiding and unloading is fixedly connected to one side of the stamping device 1 close to the clamping member 17. An arc-shaped opening for automatic material leakage is provided on the side close to the moving frame 16, which is used for realizing automatic unloading after the sprocket wheel moves out of the stamping area. The material guide plate 111 is arranged flush with the height of the lower stamping die 14 to ensure that the sprocket wheel smoothly transitions from the lower stamping die 14 to the material guide plate 111.

[0042] When the clamping member 17 pulls the sprocket wheel out of the stamping area, the sprocket wheel will smoothly move horizontally from the lower stamping die 14 onto the material guide plate 111. As the clamping member 17 continues to move to the right, when the sprocket wheel between the clamping members 17 moves into the arc-shaped opening of the material guide plate 111, under the action of the self-gravity of the sprocket wheel, the sprocket wheel will fall downward along the trajectory of the arc-shaped opening from the material guide plate 111, completing the process of automatic unloading.

[0043] As a precision workpiece, when the sprocket wheel falls freely from the material guide plate 111 with a certain height onto the collection device, it is easily damaged or deformed on the surface due to hard collision. The freely falling sprocket wheel is difficult to maintain a regular posture, resulting in disorderly stacking, which not only increases the risk of damage but also is not conducive to the automatic transfer and counting of subsequent processes. Therefore, it is necessary to design a mechanism for regularly collecting sprocket wheels to ensure that the sprocket wheels are kept neat and avoid damage during the collection process.

[0044] As Figure 6 shown, a rotating disk 117 is rotatably connected to the bottom plate of the stamping device 1. Symmetrically distributed collecting rods 116 are clamped on the rotating disk 117 through positioning pins, which are used to receive and regularly collect the stamped sprocket wheels. A buffer rubber sleeve is coated on the outside of each collecting rod 116.

[0045] Initially, manually rotate the rotating disk 117 to accurately align the axis of one of the collecting rods 116 with the center position of the arc-shaped material leakage opening of the material guide plate 111. The clamping assembly pulls the sprocket wheel out of the stamping area and translates it onto the material guide plate 111. When the sprocket wheel moves to the arc-shaped material leakage opening of the material guide plate 111, it drops vertically under the action of gravity. The center hole of the dropped sprocket wheel is accurately aligned with the collecting rod 116 at the collection station below, and is sleeved on its buffer rubber sleeve. Subsequent sprocket wheels are sleeved in turn to form an axially regular stack.

[0046] As [[ID=1⑧]] Figure 7 shown, symmetrically distributed telescopic members 31 are fixedly connected to each collecting rod 116. A buffer disk 3 for supporting is connected between their telescopic ends, and the buffer disk 3 can slide vertically along the collecting rod 116. A buffer spring 32 is connected between the telescopic part of each telescopic member 31 and the bottom plate of the adjacent collecting rod 116.

[0047] The first sprocket to fall slides down the collection rod 116 and presses against the buffer tray 3. Its gravity compresses the buffer spring 32, causing the telescopic member 31 to retract. The buffer spring 32 absorbs the impact energy, ensuring a soft landing and effectively preventing damage. Subsequent sprockets are then inserted, slid down, and stacked on top of the previous sprocket. Supported by the buffer spring 32, the buffer tray 3 moves smoothly downward as the stacking height increases, maintaining soft contact between the sprockets and preventing hard collisions.

[0048] Example 2: During the operation of the equipment, when one collecting rod 116 is filled with the sprocket, the rotating disk 117 is rotated to accurately align the other empty collecting rod 116 with the circular part of the arc-shaped opening of the guide plate 111, thereby realizing seamless switching of the sprocket and ensuring the continuity of the production process.

[0049] like Figure 6 As shown, this embodiment adopts the following solution: the upper stamping die 12 is fixedly connected to a fixing frame 2, the bottom of which is fixedly connected to a vertical rack 21. The stamping device 1 is rotatably connected to a first rotating shaft 27, on which a one-way gear 23 is fixed. The vertical rack 21 and the one-way gear 23 are meshed with each other to realize the linkage between the stamping action and the transmission system.

[0050] A second rotating shaft 28 is also rotatably connected to the stamping device 1. Bevel gears 22 are fixedly attached to both the first and second rotating shafts 27 and 28. The two bevel gears 22 mesh with each other, achieving 90° power reversal. A transmission wheel 24 is fixedly attached to the second rotating shaft 28. A synchronous wheel 26 is fixedly attached to the bottom of the rotating disk 117. A timing belt 25 is wound between the transmission wheel 24 and the synchronous wheel 26 to ensure the accuracy and stability of the switching action of the collection lever 116.

[0051] When a collection rod 116 is filled with sprockets and the collection rod 116 needs to be switched, the hydraulic cylinder 11 is controlled to drive the stamping upper die 12 to continue to move upward for an additional stroke after the normal reset. At the beginning of this additional upward stroke, the inclined chute of the extrusion member 18 drives the movable frame 16 to move to the left. When the boss of the movable frame 16 moves to the disengagement notch of the chute, the boss disengages from the chute, and the movable frame 16 stops moving and is locked in the left position.

[0052] As the upper die 12 continues to move upward, it drives the fixed frame 2 and the vertical rack 21 to move upward synchronously. The vertical rack 21 drives the one-way gear 23 meshing with it to rotate, and the one-way gear 23 drives the first rotating shaft 27 to rotate. The first rotating shaft 27 transmits the rotational motion through two bevel gears 22 and reverses it to the second rotating shaft 28. The second rotating shaft 28 drives the transmission wheel 24 to rotate. The transmission wheel 24 drives the synchronous wheel 26 to rotate via the synchronous belt 25. The synchronous wheel 26 drives the rotating disk 117 fixed to it to rotate precisely 180 degrees.

[0053] The rotation of the rotating disk 117 moves the currently fully loaded collecting rod 116 out of the collecting station, and at the same time accurately positions another empty collecting rod 116 directly below the material leakage opening of the guide plate 111 to prepare for receiving a new sprocket. The hydraulic cylinder 11 drives the stamping upper die 12 to move downward. When the vertical rack 21 moves downward, the one-way gear 23 rotates idly and slips, and the rotating disk 117 remains stationary. When the downward moving extrusion part 18 contacts the convex column of the moving frame 16, the inclined groove drives the moving frame 16 to move to the right and reset to prepare for the next material taking.

[0054] As Figure 7 shown, specifically, handles 33 that can be folded and operated are symmetrically rotatably connected to the top of each collecting rod 116 for realizing the quick loading and unloading of the collecting rod 116. Its design features include: the handle 33 has two states, a working position (horizontally unfolded) and a storage position (flatly embedded); in the storage position, the handle 33 is embedded in the collecting rod 116 to ensure that it is lower than the sprocket receiving plane; after the handle 33 is unfolded, it forms an ergonomic lifting grip.

[0055] The loading and unloading operation process of the collecting rod 116: Lift the handle 33 to the horizontal working position to form a lifting grip; hold the handle 33 and vertically lift the collecting rod 116 out of the positioning pin of the rotating disk 117, and transfer the regularly stacked sprockets to the next process. Vertically insert the empty collecting rod 116 into the clamping position of the rotating disk 117; press down the handle 33 to the storage position and embed it in the reserved groove of the rod body; confirm that the top of the handle 33 is lower than the sprocket receiving surface to avoid interfering with the subsequent sprocket nesting.

[0056] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. An alloy sprocket outer tooth stamping device, comprising a stamping device (1). Symmetrically distributed hydraulic cylinders (11) are installed on the top of the stamping device (1), and a stamping upper die (12) is fixedly connected between the ends of their piston rods. A stamping lower die (14) is arranged on the workbench of the stamping device (1). A top piece mechanism is arranged in the stamping lower die (14). It is characterized in that: On the working table of the stamping device (1), there is also a transportation component (13) symmetrically distributed along the stamping lower die (14). A guiding frame (15) is fixedly connected to the stamping device (1), and a moving frame (16) is slidably connected thereto. The moving frame (16) is provided with a clamping component. An extrusion part (18) is fixedly connected to the stamping upper die (12), and an inclined chute is arranged thereon. Both ends of the inclined chute are provided with release notches. A convex column is arranged on the moving frame (16), and the convex column is arranged in the inclined chute. A support part (112) is also fixedly connected to the guiding frame (15), and the extrusion part (18) slides vertically on the support part (112).

2. The alloy sprocket outer tooth stamping equipment according to claim 1, characterized in that: The receiving platform of the transportation component (13) at the input is horizontally arranged, and the receiving platform of the transportation component (13) at the output is inclinedly arranged.

3. The alloy sprocket outer tooth stamping equipment according to claim 2, characterized in that: The clamping component includes clamping parts (17) symmetrically and slidably connected to the moving frame (16). A connecting spring (113) is connected between the symmetrically distributed clamping parts (17). The connecting spring (113) is wound around the moving frame (16). A fixed seat (114) is fixedly connected to each clamping part (17), and a rotating part (110) is rotatably connected thereto. A connecting torsion spring (115) is connected between the rotating part (110) and the adjacent fixed seat (114). Each connecting torsion spring (115) is wound around the rotating part (110) respectively. Symmetrically distributed limiting parts (19) are fixedly connected to the stamping device (1), and precise guiding inclined surfaces are arranged thereon and are precisely located on the moving track line of the rotating part (110).

4. The alloy sprocket outer tooth stamping equipment according to claim 3, characterized in that: On one side of the stamping device (1) close to the clamping part (17), a material guiding plate (111) integrating guiding and discharging is fixedly connected, and an arc-shaped opening for automatic material leakage is arranged thereon; the material guiding plate (111) is arranged at the same height as the stamping lower die (14).

5. The alloy sprocket outer tooth stamping equipment according to claim 4, characterized in that: A rotating disk (117) is rotatably connected to the bottom plate of the stamping device (1). Symmetrically distributed collecting rods (116) are clamped on the rotating disk (117) through positioning pins, and a buffer rubber sleeve is coated on the outside of each collecting rod (116).

6. The alloy sprocket outer tooth stamping equipment according to claim 5, characterized in that: Symmetrically distributed telescopic parts (31) are fixedly connected to each collecting rod (116), and a buffer disk (3) is connected between their telescopic ends. The buffer disk (3) can slide vertically along the collecting rod (116). A buffer spring (32) is connected between the telescopic part of each telescopic part (31) and the bottom plate of the adjacent collecting rod (116).

7. The alloy sprocket outer tooth stamping equipment according to claim 6, characterized in that: A fixed frame (2) is fixedly connected to the upper stamping die (12), and a vertical rack (21) is fixedly connected to the bottom thereof. A first rotating shaft (27) is rotatably connected to the stamping equipment (1), and a one-way gear (23) is fixedly connected thereto. The vertical rack (21) meshes with the one-way gear (23). A second rotating shaft (28) is also rotatably connected to the stamping equipment (1). Bevel gears (22) are fixedly connected to both the first rotating shaft (27) and the second rotating shaft (28). The two bevel gears (22) mesh with each other. A transmission wheel (24) is fixedly connected to the second rotating shaft (28). A synchronous wheel (26) is fixedly connected to the bottom of the rotating disk (117). A synchronous belt (25) is wound between the transmission wheel (24) and the synchronous wheel (26).

8. The alloy sprocket outer tooth stamping equipment according to claim 7, characterized in that: Foldable handles (33) are symmetrically and rotatably connected to the tops of the collecting rods (116).

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