Machining device for generator end cover and using method

Abstract

The invention relates to the technical field of end cover machining, and discloses a machining device for generator end covers and a using method.The machining device comprises a plurality of generator end covers, the multiple generator end covers are stacked, and a plurality of sector plates abutting against the inner wall of the end cover in the generator end covers are arranged between every two adjacent generator end covers; a plurality of fan-shaped cutting rings stamping towards the fan-shaped plates are arranged on the outer wall of the generator end cover, and the fan-shaped plates correspond to the fan-shaped cutting rings one by one in position. According to the punching device, the fan-shaped plate can drive fan-shaped waste for punching the generator end cover to enter the fan-shaped cutting ring together, a storage space is provided for the fan-shaped plate and the fan-shaped waste, punching of the generator end cover behind is not affected, it is guaranteed that the fan-shaped cutting ring conducts continuous penetrating punching on the multiple coaxially-arranged generator end covers, and the punching efficiency of the generator end cover is improved. And meanwhile, the fan-shaped plate can provide support for stamping of the fan-shaped cutting ring, and the situation that the side, tightly attached to the generator end cover, of the fan-shaped cutting ring collapses in the stamping process is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of end cover processing, and particularly relates to a processing device and a usage method for a generator end cover. Background Art

[0002] As one of the main components of a generator, the generator end cover itself has some stamping holes, and these stamping holes have multiple functions, such as heat dissipation. The stamping holes all need to be formed by subsequent stamping operations. Therefore, there are corresponding stamping devices for how to stamp and form the generator end cover. However, the existing stamping devices usually have the following several problems: Firstly, the existing stamping device can only process and stamp one generator end cover at a time. After stamping, the corresponding generator end cover needs to be taken away, and a new generator end cover needs to be put in again for stamping, which will reduce the efficiency of stamping processing and manufacturing. Secondly, most of the existing stamping processes apply pressure and stamp from one side of the generator end cover, and then collect and remove the waste left by stamping, and then carry out the next round of stamping manufacturing. However, if multiple generator end covers are stacked and processed simultaneously, it will cause the problem of uneven stamping force, that is, the other side of the generator end cover is in a suspended and unsupported state, and there will be a problem of stamping deformation. Then, the waste left by stamping needs to be removed in time, otherwise it will affect the subsequent continuous stamping processing.

[0003] Therefore, we have designed a processing device and a usage method for a generator end cover. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem of uneven stamping force caused by stacking and processing multiple generator end covers simultaneously, and to provide a processing device and a usage method for a generator end cover.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions: A processing device for a generator end cover includes a plurality of generator end covers, which are stacked. A plurality of sector plates that abut against the inner wall of the end cover in the middle of the generator end cover are arranged between adjacent two generator end covers. A plurality of sector knives that stamp towards the sector plates are arranged on the outer wall of the end cover of the generator end cover, and the positions of the sector plates and the sector knives correspond one by one; An auxiliary propulsion mechanism for propelling the sector plate to move and separate from the sector plate is also arranged between adjacent two generator end covers.

[0006] Preferably, a tool rest is provided on one side of a plurality of generator end covers arranged in a stack. A plurality of sector ring knives are arranged at equal circumferential intervals and are mounted on the same tool rest. The tool rest includes an outer ring rest and an inner ring rest arranged coaxially. The outer ring rest and the inner ring rest are connected by a connecting frame. The sector ring knives slide between the outer ring rest and the inner ring rest through arc-shaped grooves.

[0007] Preferably, the auxiliary propulsion mechanism includes: An end clamping ring, on which a plurality of sliding frames corresponding to the sector plates one by one are provided. The sector plates are connected to the sliding frames through push rods; The sliding frames slide on the end clamping ring through second annular grooves and arc-shaped sliders; One side of the end clamping ring is attached to the generator end cover, and the second annular groove is opened on the other side of the end clamping ring.

[0008] Preferably, an auxiliary sliding frame for radially assisting the sliding of the sliding frames is further provided between two adjacent generator end covers. The generator end cover, the auxiliary propulsion mechanism, and the auxiliary sliding frame are arranged coaxially in sequence.

[0009] Preferably, the auxiliary sliding frame includes a ball rack. A first annular groove is opened on one side of the ball rack facing the sliding frame, and a plurality of balls abutted against the sliding frames are arranged in the first annular groove. The balls roll in the ball rack through the first annular groove.

[0010] Preferably, the auxiliary propulsion mechanism further includes: An electric push rod. A rectangular groove is opened on the sliding frame, and the push rod is mounted on the sliding frame through a rectangular block and the rectangular groove. The rectangular block and the rectangular groove are attracted to each other by magnetic sheets. The electric push rod is mounted on the sliding frame, and the output end of the electric push rod extends into the rectangular groove and abuts against the rectangular block.

[0011] Preferably, a sliding groove is further opened on the sliding frame. A driving motor is fixedly arranged in the sliding groove. The arc-shaped slider slides in the sliding groove through a sliding member, and the output end of the driving motor is fixedly connected to a lead screw adapted to the sliding member.

[0012] Preferably, the sector ring knives are adapted to the sector plates.

[0013] Preferably, the generator end cover, the auxiliary propulsion mechanism, and the auxiliary sliding frame are set as positioning components. A plurality of positioning components are connected end to end, and a plurality of positioning components are clamped by a plurality of clamping frames. The plurality of clamping frames are arranged at equal circumferential intervals. The clamping frames are L-shaped frames. A sliding clamping plate is arranged on the clamping frames, and the sliding clamping plate slides and clamps on the clamping frames through a clamping groove and a clamping block. A threaded rod adapted to the clamping block is arranged in the clamping groove.

[0014] A usage method of a processing device for a generator end cover is as follows. The specific operation steps are as follows: S1: First, stack multiple generator end covers, and coaxially arrange the end snap ring and the ball carrier between two adjacent generator end covers in sequence. Since the generator end cover, the auxiliary propulsion mechanism, and the auxiliary carriage are set as a positioning component, then coaxially arrange multiple positioning components to form a component to be processed, and clamp it on one side of the component to be processed through an L-shaped clamping frame. Then, under the action of an external drive, drive the threaded rod to rotate, so that the sliding clamping plate can clamp one side and the other side of the component to be processed, thereby completing the stacking and clamping of multiple generator end covers; S2: Then, connect the output end of the external propulsion device to the tool rest. There are multiple sector ring cutters on the tool rest that abut against the outer wall of the end cover of the generator end cover. At the same time, the sliding carriage on the end snap ring slides on the end snap ring through the second annular groove and the arc-shaped slider, and the sliding carriage corresponds to the sector ring cutter one by one, and then is fixed on the end snap ring through bolts to complete positioning. In this way, the sector plate on the sliding carriage abuts against the inner wall of the end cover in the generator end cover, which makes the sector plate and the sector ring cutter located on both sides of the inner wall of one side of the generator; S3: Under the propulsion action of the external propulsion device, the sector ring cutter on the tool rest presses against the outer wall of the end cover of the generator end cover. Then, turn on the electric push rod to push the rectangular block, and drive the sector plate on the push rod to move towards the sector ring cutter, forming a state of simultaneous stamping on both sides of the end cover of the generator end cover. Since the sector ring cutter is adapted to the sector plate, the stamping waste will enter the sector ring cutter together with the sector plate and the push rod. At this time, the push rod disengages from the sliding carriage, and then turn on the drive motor to make the lead screw drive the sliding carriage to slide on the arc-shaped slider, that is, make the sliding carriage slide outwards along the radial direction of the end snap ring, creating a stamping space for the subsequent stamping of the sector ring cutter and facilitating continuous stamping.

[0015] The beneficial effects of the present invention are as follows: In the present invention, the sector plate can carry the sector waste on one side of the stamping generator into the sector ring cutter together, providing a storage space for the sector plate and the sector waste, and at the same time not affecting the subsequent stamping of the generator end cover, ensuring the continuous through stamping of the sector ring cutter on multiple coaxially arranged generator end covers. At the same time, the setting of the sector plate can provide support for the stamping of the sector ring cutter, avoiding the occurrence of collapse on the side of the generator end cover that the sector ring cutter is closely attached to during the stamping process.

[0016] In the present invention, since the sector ring cutter is adapted to the sector plate, the stamping waste will enter the sector ring cutter together with the sector plate and the push rod. At this time, the push rod disengages from the sliding carriage, and then turn on the drive motor to make the lead screw drive the sliding carriage to slide on the arc-shaped slider, that is, make the sliding carriage slide outwards along the radial direction of the end snap ring, creating a stamping space for the subsequent stamping of the sector ring cutter and facilitating continuous stamping. Description of the Drawings

[0017] Figure 1Schematic structural diagram of a processing device for a generator end cover proposed by the present invention; Figure 2 Isometric left and right view of a processing device for a generator end cover proposed by the present invention; Figure 3 Schematic structural diagram of a tool rest in a processing device for a generator end cover proposed by the present invention; Figure 4 Schematic structural diagram of a ball rolling frame in a processing device for a generator end cover proposed by the present invention; Figure 5 Is Figure 4 Enlarged schematic diagram of the structure at A in; Figure 6 Schematic structural diagram of a single group of generator end covers in a processing device for a generator end cover proposed by the present invention; Figure 7 Isometric left and right view of a single group of generator end covers in a processing device for a generator end cover proposed by the present invention; Figure 8 Schematic structural diagram of a reverse pushing mechanism in a processing device for a generator end cover proposed by the present invention; Figure 9 Is Figure 8 Enlarged schematic diagram of the structure at B in; Figure 10 Isometric left and right view of a reverse pushing mechanism in a processing device for a generator end cover proposed by the present invention; Figure 11 Partial exploded view of a reverse pushing mechanism in a processing device for a generator end cover proposed by the present invention; Figure 12 Schematic diagram of the state of stamping processing in a processing device for a generator end cover proposed by the present invention; Figure 13 Schematic diagram of the state of a sector ring cutter and a sector plate in a processing device for a generator end cover proposed by the present invention; Figure 14 Front view of stamping of a sector ring cutter and a sector plate in a processing device for a generator end cover proposed by the present invention; Figure 15 Is Figure 14 Enlarged schematic diagram of the structure at C in.

[0018] In the figure: 1. Generator end cover; 2. End clamping ring; 3. Clamping frame; 4. Sliding clamping plate; 5. Threaded rod; 6. Tool rest; 61. Outer ring frame; 62. Inner ring frame; 63. Connecting frame; 7. Sector ring cutter; 8. Ball rolling frame; 9. First annular groove; 10. Ball; 11. Second annular groove; 12. Arc-shaped slider; 13. Sliding frame; 14. Pushing rod; 15. Sector plate; 16. Rectangular block; 17. Electric push rod; 18. Sliding groove; 19. Lead screw; 20. Driving motor; 21. Rectangular groove. Detailed implementation mode Embodiment

[0019] Refer to Figures 1 - 15 , a processing device for generator end covers, including a plurality of generator end covers 1, which are stacked. Among them, coaxial clamping of the plurality of generator end covers 1 is adopted. A plurality of sector plates 15 that abut against the inner wall of the end cover in the generator end cover 1 are arranged between two adjacent generator end covers 1. Among them, the plurality of sector plates 15 are evenly distributed in a circumferential manner. A plurality of sector ring cutters 7 that punch towards the sector plates 15 are arranged on the outer wall of the end cover of the generator end cover 1. The positions of the sector plates 15 and the sector ring cutters 7 correspond one by one. Such a setting facilitates the mutual punching of the sector plates 15 and the sector ring cutters 7 under the action of an external punching device, and completes the punching of the end cover of the generator end cover 1 to form a through hole.

[0020] Refer to Figures 13 - 15 State, where the sector ring cutter 7 is adapted to the sector plate 15. It should be noted that the outer side wall of the sector plate 15 is adapted to the inner wall of the sector ring cutter 7. Therefore, it can be ensured that under the punching action of the sector ring cutter 7, the sector plate 15 can bring the sector waste material of the punched end cover of the generator end cover 1 into the sector ring cutter 7 together, providing a storage space for the sector plate 15 and the sector waste material, and at the same time not affecting the subsequent punching of the generator end cover 1, ensuring the continuous through punching of the sector ring cutter 7 on a plurality of coaxially arranged generator end covers 1. At the same time, the setting of the sector plate 15 can provide support for the punching of the sector ring cutter 7, avoiding the occurrence of collapse of the end cover of the generator end cover 1 that the sector ring cutter 7 is in close contact with during the punching process.

[0021] An auxiliary propulsion mechanism for pushing the sector plate 15 to move and separate from the sector plate 15 is also arranged between two adjacent generator end covers 1. Among them, the auxiliary propulsion mechanism is used to push the sector plate 15. Among them, the external punching devices that drive the sector plate 15 and the sector ring cutter 7 to squeeze the end cover of the generator end cover 1 both adopt pneumatic cylinders.

[0022] The working principle of the present invention is as follows: First, stack a plurality of generator end covers 1, and then perform coaxial clamping on the plurality of generator end covers 1. Drive the sector ring cutters 7 and the sector plates 15 on both sides of the end cover of the generator end cover 1 to approach and punch each other through an external punching device. The setting of the sector plate 15 can provide support for the punching of the sector ring cutter 7, avoiding the occurrence of collapse of the end cover of the generator end cover 1 that the sector ring cutter 7 is in close contact with during the punching process; Meanwhile, the outer sidewall of the sector plate 15 is adapted to the inner wall of the sector ring cutter 7. Therefore, it can be ensured that under the stamping action of the sector ring cutter 7, the sector plate 15 can enter the sector ring cutter 7 together with the sector waste on one side of the stamping generator end cover 1, providing a storage space for the sector plate 15 and the sector waste, and at the same time not affecting the subsequent stamping of the generator end cover 1, ensuring the continuous penetration stamping of the sector ring cutter 7 on multiple coaxially arranged generator end covers 1. Embodiment

[0023] The generator end cover 1, the auxiliary propulsion mechanism and the auxiliary carriage are set as a positioning assembly. Multiple positioning assemblies are connected end to end, and multiple positioning assemblies are clamped by multiple clamping frames 3, and multiple clamping frames 3 are arranged at equal circumferential intervals. The clamping frame 3 is an L-shaped frame. A sliding clamping plate 4 is arranged on the clamping frame 3, and the sliding clamping plate 4 slides and clamps on the clamping frame 3 through a clamping groove and a clamping block. A threaded rod 5 adapted to the clamping block is arranged in the clamping groove. The end clamping ring 2 and the ball rack 8 are coaxially arranged between two adjacent generator end covers 1 in sequence. Since the generator end cover 1, the auxiliary propulsion mechanism and the auxiliary carriage are set as a positioning assembly, and then multiple positioning assemblies are coaxially arranged to form a component to be processed, which is clamped on one side of the component to be processed by the L-shaped clamping frame 3, and then the threaded rod 5 is driven to rotate under the action of an external drive, so that the sliding clamping plate 4 can clamp the other side of one side of the component to be processed, thereby completing the stacking and clamping of multiple generator end covers 1.

[0024] Refer to Figure 3 、 Figure 12 and Figure 13 In the state, a tool rest 6 is provided on one side of multiple stacked generator end covers 1. Multiple sector ring cutters 7 are arranged at equal circumferential intervals and are installed on the same tool rest 6. The corresponding number of sector ring cutters 7 is selected and placed on the tool rest 6 according to requirements.

[0025] The tool rest 6 includes an outer ring frame 61 and an inner ring frame 62 arranged coaxially. The outer ring frame 61 and the inner ring frame 62 are connected by a connecting frame 63. The sector ring cutter 7 slides between the outer ring frame 61 and the inner ring frame 62 through an arc groove, and is then fixed on the tool rest 6 by bolts. Then, an external stamping device drives the multiple sector ring cutters 7 on the tool rest 6 to stamp the generator end cover 1 to achieve stamping. Embodiment

[0026] For the auxiliary stamping of the inner wall of the generator end cover 1, the following structure can be selected. For example, the auxiliary propulsion mechanism includes an end clamping ring 2. A plurality of sliding frames 13 corresponding to the sector plates 15 one by one are arranged on the end clamping ring 2. The sector plate 15 is connected to the sliding frame 13 through a push rod 14. Among them, the sector plate 15 is connected to the end clamping ring 2 and is in close contact with the inner wall of the generator end cover 1.

[0027] The sliding carriage 13 slides on the end clamping ring 2 through the second annular groove 11 and the arc-shaped slider 12. Therefore, the sliding of the position of the sliding carriage 13 on the end clamping ring 2 corresponds to the position of the sector ring cutter 7, and then it is fixed on the end clamping ring 2 by bolts.

[0028] One side of the end clamping ring 2 is in contact with the generator end cover 1. The second annular groove 11 is opened on the other side of the end clamping ring 2. An auxiliary sliding carriage for radially assisting the sliding of the sliding carriage 13 is also provided between two adjacent generator end covers 1. The generator end cover 1, the auxiliary propulsion mechanism, and the auxiliary sliding carriage are arranged coaxially in sequence, thus forming Figure 7 the state shown.

[0029] The output end of the peripheral propulsion device is connected to the tool holder 6. A plurality of sector ring cutters 7 that abut against the outer wall of the end cover of the generator end cover 1 are provided on the tool holder 6. At the same time, the sliding carriage 13 on the end clamping ring 2 slides on the end clamping ring 2 through the second annular groove 11 and the arc-shaped slider 12. The sliding carriage 13 corresponds to the sector ring cutter 7 one by one, and then it is fastened on the end clamping ring 2 by bolts to complete the positioning. In this way, the sector plate 15 on the sliding carriage 13 abuts against the inner wall of the end cover in the generator end cover 1, which makes the sector plate 15 and the sector ring cutter 7 located on both sides of the inner wall of the end cover of the generator end cover 1 respectively.

[0030] The auxiliary sliding carriage includes a ball carriage 8. A first annular groove 9 is opened on one side of the ball carriage 8 facing the sliding carriage 13, and a plurality of balls 10 that abut against the sliding carriage 13 are arranged in the first annular groove 9. The balls 10 roll in the ball carriage 8 through the first annular groove 9, thus providing rolling support for the sliding of the sliding carriage 13.

[0031] The auxiliary propulsion mechanism further includes an electric push rod 17. A rectangular groove 21 is opened on the sliding carriage 13, and the pushing rod 14 is installed on the sliding carriage 13 through a rectangular block 16 and the rectangular groove 21. The rectangular block 16 and the rectangular groove 21 are attracted by magnetic sheets. The electric push rod 17 is installed on the sliding carriage 13, and the output end of the electric push rod 17 extends into the rectangular groove 21 and abuts against the rectangular block 16. Therefore, when the sector ring cutter 7 is stamping, the electric push rod 17 is turned on at the same time, so that the sector plate 15 and the sector ring cutter 7 move relatively. The setting of the sector plate 15 can provide support for the stamping of the sector ring cutter 7, and avoid the collapse of the end cover of the generator end cover 1 that the sector ring cutter 7 is in close contact with during the stamping process.

[0032] Turn on the electric push rod 17 to push the rectangular block 16, driving the sector plate 15 on the pushing rod 14 to move towards the sector ring cutter 7, forming a state of simultaneous stamping on both sides of the end cover of the generator end cover 1. Then, with the opening of the electric push rod 17, the rectangular block 16 will be pushed away from the rectangular groove 21, providing conditions for the sliding carriage 13 to disengage from the sector plate 15.

[0033] Since the sector ring cutter 7 is adapted to the sector plate 15, the stamping waste will enter the sector ring cutter 7 together with the sector plate 15 and the pushing rod 14.

[0034] A sliding groove 18 is also formed on the sliding frame 13. A driving motor 20 is fixedly arranged in the sliding groove 18. The arc-shaped slider 12 slides in the sliding groove 18 through a sliding member. The output end of the driving motor 20 is fixedly connected with a lead screw 19 adapted to the sliding member. At this time, the pushing rod 14 is separated from the sliding frame 13, and then the driving motor 20 is started to make the lead screw 19 drive the sliding frame 13 to slide on the arc-shaped slider 12, that is, to make the sliding frame 13 slide outward along the radial direction of the end clamping ring 2, so as to make a stamping space for the subsequent stamping of the sector ring cutter 7 and facilitate continuous stamping.

[0035] The above is only a preferred specific embodiment 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, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A processing device for a generator end cover, including a plurality of generator end covers, characterized in that, Multiple generator end covers are stacked, and a plurality of sector plates that abut against the inner wall of the end cover in the generator end cover are arranged between two adjacent generator end covers. A plurality of sector ring knives that punch towards the sector plates are arranged on the outer wall of the end cover of the generator end cover, and the positions of the sector plates and the sector ring knives correspond one by one; An auxiliary propulsion mechanism for pushing the sector plate to move and separate from the sector plate is also arranged between two adjacent generator end covers.

2. The processing device for a generator end cover according to claim 1, wherein, A tool rest is arranged on one side of the multiple generator end covers arranged in a stack. The multiple sector ring knives are arranged at equal circumferential intervals and are installed on the same tool rest. The tool rest includes an outer ring frame and an inner ring frame arranged coaxially. The outer ring frame and the inner ring frame are connected by a connecting frame, and the sector ring knives slide between the outer ring frame and the inner ring frame through arc-shaped grooves.

3. The processing device for the generator end cover according to claim 2, characterized in that, The auxiliary propulsion mechanism includes: An end clamping ring, and a plurality of sliding frames corresponding to the sector plates one by one are arranged on the end clamping ring. The sector plates are connected to the sliding frames through push rods; The sliding frames slide on the end clamping ring through second annular grooves and arc-shaped sliders; One side of the end clamping ring is attached to the generator end cover, and the second annular groove is opened on the other side of the end clamping ring.

4. A processing device for a generator end cover according to claim 3, characterized in that, An auxiliary sliding frame for radially assisting the sliding of the sliding frame is also arranged between two adjacent generator end covers. The generator end cover, the auxiliary propulsion mechanism, and the auxiliary sliding frame are arranged coaxially in sequence.

5. A processing device for a generator end cover according to claim 4, characterized in that, The auxiliary sliding frame includes a ball frame. A first annular groove is opened on one side of the ball frame facing the sliding frame, and a plurality of balls that abut against the sliding frames are arranged in the first annular groove. The balls roll in the ball frame through the first annular groove.

6. The processing device for the generator end cover according to claim 5, characterized in that, The auxiliary propulsion mechanism further includes: An electric push rod. A rectangular groove is opened on the sliding frame, and the push rod is installed on the sliding frame through a rectangular block and the rectangular groove. The rectangular block and the rectangular groove are attracted to each other by magnetic sheets. The electric push rod is installed on the sliding frame, and the output end of the electric push rod extends into the rectangular groove and abuts against the rectangular block.

7. A processing device for a generator end cover according to claim 6, characterized in that, A sliding groove is also opened on the sliding frame. A driving motor is fixedly arranged in the sliding groove. The arc-shaped slider slides in the sliding groove through a sliding member, and the output end of the driving motor is fixedly connected to a lead screw adapted to the sliding member.

8. A processing device for a generator end cover according to claim 7, characterized in that, The sector ring knives are adapted to the sector plates.

9. The processing device for a generator end cover according to claim 8, characterized in that, The generator end cover, the auxiliary propulsion mechanism, and the auxiliary sliding frame are set as positioning components. A plurality of positioning components are connected end to end, and a plurality of positioning components are clamped by a plurality of clamping frames. The plurality of clamping frames are arranged at equal circumferential intervals. The clamping frames are L-shaped frames. A sliding clamping plate is arranged on the clamping frames, and the sliding clamping plate is clamped on the clamping frames by a clamping groove and a clamping block. A threaded rod adapted to the clamping block is arranged in the clamping groove.

10. A method for using a processing device for a generator end cover, applied to a processing device for a generator end cover in claim 9, characterized in that, The specific operation steps are as follows: S1: First, stack multiple generator end covers, and sequentially arrange the end clamping ring and the ball frame coaxially between two adjacent generator end covers. Since the generator end cover, the auxiliary propulsion mechanism, and the auxiliary sliding frame are set as a positioning component, then coaxially arrange a plurality of positioning components to form a component to be processed, clamp the component to be processed on one side by an L-shaped clamping frame, and then drive the threaded rod to rotate under the action of an external drive, so that the other side of the component to be processed can be clamped by the sliding clamping plate, thereby completing the stacking and clamping of multiple generator end covers; S2: Then, the output end of the peripheral propulsion device is connected to the tool rest. A plurality of sector ring knives that abut against the outer wall of the end cover of the generator are arranged on the tool rest. At the same time, the sliding frame on the end clamping ring slides on the end clamping ring through the second annular groove and the arc-shaped slider. The sliding frame corresponds to the sector ring knife one by one, and then is fixed on the end clamping ring by bolts to complete the positioning. In this way, the sector plate on the sliding frame abuts against the inner wall of the end cover in the middle of the generator end cover, which makes the sector plate and the sector ring knife located on both sides of the inner wall of the end cover of the generator end cover respectively; S3: Under the propulsion action of the peripheral propulsion device, the sector ring knives on the tool rest press against the outer wall of the end cover of the generator. Then, the electric push rod is turned on to push the rectangular block, driving the sector plate on the extrusion rod to move towards the sector ring knife, forming a state of simultaneous pressing on both sides of the end cover of the generator end cover. Since the sector ring knife is adapted to the sector plate, the stamping waste will enter the sector ring knife together with the sector plate and the extrusion rod. At this time, the extrusion rod disengages from the sliding frame, and then the drive motor is turned on to make the lead screw drive the sliding frame to slide on the arc-shaped slider, that is, to make the sliding frame slide outwards along the radial direction of the end clamping ring, creating a stamping space for the subsequent stamping of the sector ring knife and facilitating continuous stamping.

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