A processing device and method for improving the concentricity of an end cover

Abstract

The present invention belongs to the field of end cover inspection, specifically a processing device and method for improving the concentricity of end covers, comprising a pair of clamping devices; the surfaces of the clamping devices on one side away from each other are fixedly connected with connecting blocks; telescopic rods are fixedly connected between the pairs of connecting blocks; a base plate is fixedly connected between the telescopic rods. In most rotating mechanical structures, the rotating component at the center needs to be coaxial with the central axis of the end cover so as not to affect the performance of the rotating component during rotation. For this purpose, an embodiment of the present invention can be used. The worker first pulls the two holding devices apart through the telescopic rod to make room for the worker to perform the clamping operation. When the end cover is fixed, the worker retracts the telescopic rod to shorten the distance between the two end covers, thereby facilitating the worker's subsequent milling and drilling, and making the axis centers of the two end covers in the same position, thereby improving the concentricity of the end covers during processing.

Description

Technical Field

[0001] The invention belongs to the field of end cover inspection, in particular to a processing device and a method for improving the concentricity of an end cover. Background Art

[0002] A motor is an electromagnetic device that converts or transmits electrical energy. Its main structure is the motor housing, stator, rotor and two end covers. When the motor is powered on, the rotor will rotate inside the housing and at the same time, the rotor will also rotate in the through holes of the end covers. At this time, if the axes of the end covers at both ends are not synchronized, it will cause friction on the rotor shaft, affecting the performance during rotation.

[0003] In the prior art, after the end cap is drilled, a concentricity measuring instrument is used to detect the concentricity of the inner diameter of the drilled hole, and the drilled hole is polished by a milling machine to correct the concentricity of the drilled hole on the end cap surface. Then, continuous measurement and correction are performed to ensure the correct concentricity between the drilled holes.

[0004] Although the existing technology can correct the concentricity of the end cover surface drilling, the inner diameter of the drilled hole needs to be measured multiple times during the correction process, and polishing is required after measurement, which is time-consuming and labor-intensive, and it is impossible to ensure the correct concentricity during the production process.

[0005] To this end, the present invention provides a processing device and method for improving the concentricity of an end cover. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a processing device for improving the concentricity of the end cover described in the present invention includes a pair of clamping devices, a connecting block, a telescopic rod and a base plate; the side surfaces of the clamping devices that are away from each other are fixedly connected with a connecting block; a telescopic rod is fixedly connected between the paired connecting blocks; a base plate is fixedly connected between the telescopic rods; during operation, in most rotating mechanical structures, the rotating component at the center needs to be coaxial with the central axis of the end cover so as not to affect the performance of the rotating component during rotation. For this purpose, an embodiment of the present invention can be used. The worker first pulls the two clamping devices away from each other through the telescopic rod to make space for the worker to perform the clamping operation. After the end cover is fixed on the clamping device, the worker retracts the telescopic rod to shorten the distance between the two end covers, thereby facilitating the worker's subsequent milling and drilling, and at the same time making the axis centers of the two end covers in the same position to improve the concentricity of the end covers during processing.

[0008] Preferably, the inner wall of the clamping collar is slidably connected to a side surface of a connecting block with a plurality of evenly arranged sliders; the clamping collar has a limiting effect on the movement of the connecting seat; the clamping collar is rotatably connected to a gear on one side surface of the slider; the slider is fixedly connected to a toothed plate meshing with the gear on one side surface of the gear; one end of the slider away from the clamping collar is fixedly connected to a first bevel rack; one end of the first bevel rack away from the slider is meshed with a second bevel rack; one end of the second bevel rack away from the slider is fixedly connected to the connecting seat and extends to the outside of the clamping collar through the beginning of the clamping collar surface, and the opening can also limit the movement direction of the connecting seat; the end face of one of the sliders is threadedly connected to the first threaded rod; during work, when the worker needs to clamp the end cover, the end cover is placed between the connecting seats, and then the external electric The machine drives the first threaded rod to rotate, and the first threaded rod drives the slider to slide, so that the slider slides in the direction away from the first threaded rod, and the sliding slider drives the gear to rotate through the toothed plate fixed on its surface, and the rotating gear will drive the remaining sliders to slide through the toothed plate, and then the sliding slider drives the first bevel rack on its surface to move, and then drives the second bevel rack meshed with the first bevel rack to move toward the center of the clamping collar, and then drives the connecting seat fixed with it to move toward the center of the clamping collar through the second bevel rack, thereby pressing the end cover to complete the fixation of the end cover, and the connecting seat is driven by the gear to move toward the center of the clamping collar at the same time, ensuring that the axis between the two end covers is on the same axis, which is beneficial for workers to perform drilling operations through the hole in the center of the clamping collar, thereby improving the concentricity between the end covers.

[0009] Preferably, an extrusion block is installed on the surface of the connecting seat away from the slider; a first flexible protrusion is fixedly connected to the surface of the extrusion block close to the gear; a plurality of evenly arranged grooves are provided on the surface of the first flexible protrusion; during operation, when the connecting seat moves toward the center of the clamping ring, it will drive the extrusion block installed on its surface to move toward the center of the clamping ring, and the first flexible protrusion on the end face of the extrusion block is attached to the side surface of the end cover to improve the stability of the end cover during drilling, and the groove on the end face of the first flexible protrusion can increase the friction during fixation, thereby improving the tightness of the end cover when fixed.

[0010] Preferably, a pair of symmetrically arranged support rods are fixedly connected to one side of the extrusion block close to the gear; the support rods are made of elastic material, and are embedded in the inside of the first flexible protrusion; the support rods are arranged in an eight-shape; during operation, when the first flexible protrusion is pressed against the surface of the end cover, the first flexible protrusion will deform, causing the support rods to diverge from each other and get stuck on the side surface of the end cover, thereby further improving the stability of the end cover.

[0011] Preferably, a pair of symmetrically arranged support rods are fixedly connected to the surface of the clamping ring on one side away from the slider; the end of the support rod close to the center of the clamping ring is connected to a limit ring; during work, when the worker needs to drill a hole on the surface of the end cover, and the diameter of the drill hole is much smaller than the diameter of the hole at the center of the clamping ring, the worker can use the limit ring to mark and limit the end face of the end cover surface to assist the worker in the subsequent drilling operation.

[0012] Preferably, the limiting ring includes a plurality of evenly arranged arc-shaped shells, connecting pieces and a first spring; an arc-shaped connecting piece is provided between the shells, and the arc-shaped connecting piece is slidably connected to the inside of the shell; an annular structure is formed between the arc-shaped shell and the connecting piece; a first spring is fixedly connected to the inside of the arc-shaped shell between the connecting pieces; the support rod is threadedly connected to a second threaded rod at one end close to the arc-shaped shell, and the second threaded rod is fixedly connected to the surface of the arc-shaped shell; during work, when a worker needs to drill holes of different diameters on the end face of the end cover, the worker can do so by screwing the second screw The threaded rod makes the threaded rods approach each other, thereby squeezing the arc-shaped housing and making the connecting piece retract into the annular housing, and compressing the first spring, thereby reducing the diameter of the limiting ring formed by the annular housing and the connecting piece, so as to improve the accuracy of workers when drilling holes with smaller diameters. When workers need to drill larger holes, they can screw the second threaded rod to make the threaded rods move away from each other. Under the action of the elastic force of the first spring inside the arc-shaped housing, the connecting piece is pushed out of the arc-shaped housing, so that the arc-shaped housing and the connecting piece form a limiting ring with a larger diameter, thereby facilitating the workers' drilling operation.

[0013] Preferably, the arc-shaped shell is fixedly connected to one end close to the clamping ring with a plurality of uniformly arranged second flexible protrusions; the second flexible protrusion is fixedly connected to one end close to the clamping ring; the magnet sheet is abutted against the surface of the end cover; during operation, when the worker adjusts the second threaded rod, it can be adsorbed on the surface of the end cover through the magnet sheet, completing the position limitation between the arc-shaped shell and the connecting piece and the end cover, so that the limiting ring formed by the arc-shaped shell and the connecting piece can be stably fixed on the surface of the end cover to prevent dislocation caused by vibration, which leads to poor coaxiality of the drilling.

[0014] Preferably, a vibration cavity is provided inside the second flexible protrusion; a through hole is provided between the vibration cavity and the magnet sheet; a connecting belt is fixedly connected to the surface of the magnet sheet close to the vibration cavity, and the connecting belt extends through the through hole to the inside of the vibration cavity; a swing block is fixedly connected to the end of the connecting belt away from the magnet sheet; during operation, when the worker performs drilling operations on the surface of the end cover, the surface of the end cover will vibrate, and at this time the magnet sheet will transfer the vibration of the end cover surface to the connecting belt, and then transfer the vibration to the swing block inside the vibration cavity through the connecting belt, and the vibration is converted into internal energy through the swing block, thereby reducing the vibration of the arc sleeve and the connecting sheet, preventing the misalignment of the drilling point due to the vibration of the arc sleeve and the connecting sheet during drilling, and also reducing the interference of the arc sleeve and the connecting sheet on the drill bit due to vibration.

[0015] Preferably, the end of the extrusion block away from the slider is fixedly connected to a top block; the side surface of the top block away from the gear is fixedly connected to a second spring; the end of the second spring away from the top block is fixedly connected to a pressure plate; during operation, when the diameter of the end cover to be clamped is large and cannot be directly fixed at the center of the clamping ring, the worker pulls up the pressure plate to move the pressure plate away from the top block and place the top block inside the end cover, and then the external motor drives the first threaded rod to rotate and moves the extrusion block in a direction away from the center of the clamping ring, so that the top block presses against the inner wall of the end cover, and the worker releases the pressure plate so that the pressure plate is pressed against the side wall of the end cover under the action of the elastic force of the second spring, thereby completing the fixation of the side surface of the large-diameter end cover.

[0016] A processing method for improving the concentricity of an end cap, using the above-mentioned processing device for improving the concentricity of an end cap, comprises the following steps:

[0017] S1. The worker now adjusts the distance between the two clamping devices using a telescopic rod and fixes the two end caps with the extrusion blocks in the clamping devices so that the centers of the two end caps are on the same axis;

[0018] S2. Then adjust the second threaded rod, and then adjust the limit ring to the appropriate diameter, and then adsorb the limit ring on the surface of the end cover through the magnet to complete the determination of the drilling position, and then extend the drill into the limit ring to complete the drilling operation.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. The present invention relates to a processing device and method for improving the concentricity of end caps. A telescopic rod is used to pull two clamping devices away from each other to make room for workers to perform clamping operations. After the end caps are fixed on the clamping devices, the worker retracts the telescopic rod to shorten the distance between the two end caps, thereby facilitating subsequent milling and drilling by the worker and simultaneously aligning the axes of the two end caps in the same position to improve the concentricity of the end caps during processing.

[0021] 2. The processing device and method for improving the concentricity of the end covers described in the present invention simultaneously drive the connecting seat to move toward the center of the clamping ring through gears, ensuring that the axis between the two end covers is on the same axis, which is beneficial for workers to perform drilling operations through the hole in the center of the clamping ring, thereby improving the concentricity between the end covers. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] Figure 1 It is a perspective view of the present invention;

[0024] Figure 2 is a cross-sectional view of the clamping ring of the present invention;

[0025] Figure 3 is a cross-sectional view of the first flexible protrusion of the present invention;

[0026] Figure 4 It is a structural schematic diagram of the arc-shaped casing in the present invention;

[0027] Figure 5 is a cross-sectional view of the second flexible protrusion of the present invention;

[0028] Figure 6 It is a structural schematic diagram of the top block in the present invention;

[0029] Figure 7 yes Figure 6 A partial enlarged view of the middle part;

[0030] Figure 8 is a flow chart of the present invention;

[0031] In the figure: 1. Clamping device; 2. Connecting block; 3. Telescopic rod; 4. Bottom plate; 5. Clamping ring; 6. Slider; 7. Gear; 8. Tooth plate; 9. First oblique rack; 10. Second oblique rack; 11. Connecting seat; 12. First threaded rod; 13. Extrusion block; 14. First flexible protrusion; 15. Groove; 16. Support rod; 17. Support rod; 18. Limiting ring; 19. Arc-shaped shell; 20. Connecting piece; 21. First spring; 22. Second threaded rod; 23. Second flexible protrusion; 24. Magnet sheet; 25. Vibration chamber; 26. Through hole; 27. Connecting belt, 28. Swinging block; 29. Top block; 30. Second spring; 31. Pressing plate. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0033] Example 1

[0034] like Figure 1 As shown, a processing device for improving the concentricity of an end cover described in an embodiment of the present invention comprises a pair of clamping devices 1, a connecting block 2, a telescopic rod 3 and a base plate 4; the surfaces of the clamping devices 1 on one side away from each other are fixedly connected with a connecting block 2; a telescopic rod 3 is fixedly connected between the pair of connecting blocks 2; a base plate 4 is fixedly connected between the telescopic rods 3; during operation, in most rotating mechanical structures, the rotating component at the center needs to be coaxial with the central axis of the end cover so as not to affect the performance of the rotating component during rotation. For this purpose, an embodiment of the present invention can be used. The worker first pulls the two clamping devices 1 away from each other through the telescopic rod 3 to make room for the worker to perform the clamping operation. After the end cover is fixed on the clamping device 1, the worker retracts the telescopic rod 3 to shorten the distance between the two end covers, thereby facilitating the worker's subsequent milling and drilling, and at the same time making the axis centers of the two end covers in the same position to improve the concentricity of the end covers during processing.

[0035] like Figures 1 to 2 As shown, the inner wall of the clamping collar 5 is slidably connected to a plurality of evenly arranged sliders 6 on one side surface close to the connecting block 2; the clamping collar 5 has a limiting effect on the movement of the connecting seat 11; the clamping collar 5 is rotatably connected to a gear 7 on one side surface close to the slider 6; the slider 6 is fixedly connected to a toothed plate 8 meshing with the gear 7 on the side surface close to the gear 7; the end of the slider 6 away from the clamping collar 5 is fixedly connected to a first bevel rack 9; the end of the first bevel rack 9 away from the slider 6 is meshed and connected to a second bevel rack 10; the end of the second bevel rack 10 away from the slider 6 is fixedly connected to a connecting seat 11, and extends to the outside of the clamping collar 5 through the beginning of the surface of the clamping collar 5, and the opening can also limit the movement direction of the connecting seat 11; the end face of one of the sliders 6 is threadedly connected to a first threaded rod 12; during work, when the worker needs to perform a clamping operation on the end cover, the end cover is placed between the connecting seats 11, and then through the outside The motor drives the first threaded rod 12 to rotate, and the first threaded rod 12 drives the slider 6 to slide, so that the slider 6 slides in the direction away from the first threaded rod 12, and the sliding slider 6 drives the gear 7 to rotate through the toothed plate 8 fixed on its surface, and the rotating gear 7 will drive the remaining sliders 6 to slide through the toothed plate 8, and then the sliding slider 6 drives the first bevel rack 9 on its surface to move, and then drives the second bevel rack 10 meshing with the first bevel rack 9 to move toward the center of the clamping collar 5, and then drives the connecting seat 11 fixed to it to move toward the center of the clamping collar 5 through the second bevel rack 10, thereby pressing the end cover and completing the fixation of the end cover. At the same time, the connecting seat 11 is driven by the gear 7 to move toward the center of the clamping collar 5 at the same time, ensuring that the axis between the two end covers is on the same axis, which is beneficial for workers to perform drilling operations through the hole in the center of the clamping collar 5, thereby improving the concentricity between the end covers.

[0036] like Figures 2 to 3As shown, an extrusion block 13 is installed on the surface of the connecting seat 11 on the side away from the slider 6; a first flexible protrusion 14 is fixedly connected to the surface of the extrusion block 13 on the side close to the gear 7; a plurality of evenly arranged grooves 15 are provided on the surface of the first flexible protrusion 14; during operation, when the connecting seat 11 moves toward the center of the clamping ring 5, it will drive the extrusion block 13 installed on its surface to move toward the center of the clamping ring 5, and the first flexible protrusion 14 on the end face of the extrusion block 13 is fitted to the side surface of the end cover to improve the stability of the end cover during drilling, and the groove 15 on the end face of the first flexible protrusion 14 can increase the friction during fixation, thereby improving the tightness of the end cover when fixed.

[0037] like Figure 3 As shown, a pair of symmetrically arranged support rods 16 are fixedly connected to one side of the extrusion block 13 close to the gear 7; the support rods 16 are made of elastic material, and the support rods 16 are embedded in the inside of the first flexible protrusion 14; the support rods 16 are arranged in an eight-shaped shape; during operation, when the first flexible protrusion 14 is pressed against the surface of the end cover, the first flexible protrusion 14 will deform, causing the support rods 16 to diverge from each other and get stuck on the side surface of the end cover, thereby further improving the stability of the end cover.

[0038] like Figure 2 and Figure 4 As shown, a pair of symmetrically arranged support rods 17 are fixedly connected to the surface of the clamping collar 5 on one side away from the slider 6; the end of the support rod 17 close to the center of the clamping collar 5 is connected to a limit ring 18; during work, when the worker needs to drill a hole on the surface of the end cover, and the diameter of the drill hole is much smaller than the diameter of the hole at the center of the clamping collar 5, the worker can use the limit ring 18 to mark and limit the end face of the end cover surface to assist the worker in the subsequent drilling operation.

[0039] like Figure 4As shown, the limiting ring 18 includes a plurality of evenly arranged arc-shaped casings 19, connecting pieces 20 and a first spring 21; an arc-shaped connecting piece 20 is provided between the casings, and the arc-shaped connecting piece 20 is slidably connected to the inside of the casing; an annular structure is formed between the arc-shaped casing 19 and the connecting piece 20; a first spring 21 is fixedly connected inside the arc-shaped casing 19 between the connecting pieces 20; the end of the support rod 17 close to the arc-shaped casing 19 is threadedly connected to a second threaded rod 22, and the second threaded rod 22 is fixedly connected to the surface of the arc-shaped casing 19; during work, when a worker needs to drill holes of different diameters on the end face of the end cover, the worker can do so by screwing the second The threaded rods 22 bring the threaded rods closer to each other, thereby squeezing the arc-shaped housing 19 and retracting the connecting piece 20 into the annular housing, and compressing the first spring 21, thereby reducing the diameter of the limit ring 18 formed by the annular housing and the connecting piece 20, so as to improve the accuracy of workers when drilling holes with smaller diameters. When workers need to drill larger holes, they can screw the second threaded rod 22 to move the threaded rods away from each other. Under the action of the elastic force of the first spring 21 inside the arc-shaped housing 19, the connecting piece 20 is pushed out of the arc-shaped housing 19, thereby forming a limit ring 18 with a larger diameter of the arc-shaped housing 19 and the connecting piece 20, thereby facilitating the workers' drilling operations.

[0040] like Figures 4 and 5 As shown, the arc-shaped shell 19 is fixedly connected to one end close to the clamping ring 5 with a plurality of uniformly arranged second flexible protrusions 23; the second flexible protrusion 23 is fixedly connected to one end close to the clamping ring 5; the magnet sheet 24 is abutted against the surface of the end cover; during operation, when the worker adjusts the second threaded rod 22, it can be adsorbed on the surface of the end cover through the magnet sheet 24, completing the position limitation between the arc-shaped shell 19 and the connecting piece 20 and the end cover, so that the limiting ring 18 formed by the arc-shaped shell 19 and the connecting piece 20 can be stably fixed on the surface of the end cover to prevent dislocation caused by vibration, which leads to poor coaxiality of the drilling.

[0041] like Figure 5As shown, a vibration cavity 25 is provided inside the second flexible protrusion 23; a through hole 26 is provided between the vibration cavity 25 and the magnet sheet 24; a connecting belt 27 is fixedly connected to the surface of the magnet sheet 24 on one side close to the vibration cavity 25, and the connecting belt 27 passes through the through hole 26 and extends into the interior of the vibration cavity 25; a swing block 28 is fixedly connected to the end of the connecting belt 27 away from the magnet sheet 24; during operation, when a worker performs a drilling operation on the surface of the end cover, the surface of the end cover will vibrate, and at this time the magnet sheet 24 will transfer the vibration of the end cover surface to the connecting belt 27, and then transfer the vibration to the swing block 28 inside the vibration cavity 25 through the connecting belt 27, and the vibration is converted into internal energy by the swing block 28, thereby reducing the vibration of the arc sleeve 19 and the connecting sheet 20, preventing the misalignment of the drilling point during drilling due to the vibration of the arc sleeve 19 and the connecting sheet 20, and also reducing the interference of the arc sleeve 19 and the connecting sheet 20 on the drill bit due to the vibration.

[0042] Example 2

[0043] like Figures 6 and 7 As shown, compared with Example 1, another embodiment of the present invention is: the end of the extrusion block 13 away from the slider 6 is fixedly connected to a top block 29; the side surface of the top block 29 away from the gear 7 is fixedly connected to a second spring 30; the end of the second spring 30 away from the top block 29 is fixedly connected to a pressure plate 31; during operation, when the diameter of the end cover to be clamped is large and cannot be directly fixed at the center of the clamping ring 5, the worker pulls up the pressure plate 31 to move the pressure plate 31 away from the top block 29 and place the top block 29 inside the end cover, and then the external motor drives the first threaded rod 12 to rotate and move the extrusion block 13 in a direction away from the center of the clamping ring 5, so that the top block 29 supports the inner wall of the end cover, and the worker loosens the pressure plate 31 so that the pressure plate 31 is pressed against the side wall of the end cover under the action of the elastic force of the second spring 30, thereby completing the fixation of the side surface of the large-diameter end cover.

[0044] like Figure 8 As shown, a processing method for improving the concentricity of the end cap is provided. The method adopts the processing device for improving the concentricity of the end cap described above, and comprises the following steps:

[0045] S1. The worker now adjusts the distance between the two clamping devices 1 through the telescopic rod 3, and fixes the two end caps through the extrusion blocks 13 in the clamping devices 1 so that the centers of the two end caps are on the same axis.

[0046] S2. Then adjust the second threaded rod 22, and then adjust the limit ring 18 to a suitable diameter, and then adsorb the limit ring 18 on the surface of the end cover through the magnet sheet 24 to complete the determination of the drilling position, and then extend the drill into the limit ring 18 to complete the drilling operation.

[0047] During operation, in most rotating mechanical structures, the rotating component at its center needs to be coaxial with the central axis of the end cover so as not to affect the performance of the rotating component during rotation. For this purpose, an embodiment of the present invention can be used. The worker first uses the telescopic rod 3 to pull the two clamping devices 1 away from each other to make room for the worker to perform the clamping operation. After the end cover is fixed on the clamping device 1, the worker retracts the telescopic rod 3 to shorten the distance between the two end covers, thereby facilitating the worker's subsequent milling and drilling, and at the same time making the axis centers of the two end covers in the same position to improve the concentricity of the end covers during processing.

[0048] When the worker needs to clamp the end cover, the end cover is placed between the connecting seats 11, and then the first threaded rod 12 is driven to rotate by an external motor, and the first threaded rod 12 drives the slider 6 to slide, so that the slider 6 slides in the direction away from the first threaded rod 12, and the sliding slider 6 drives the gear 7 to rotate through the toothed plate 8 fixed on its surface, and the rotating gear 7 will drive the remaining sliders 6 to slide through the toothed plate 8, and then the sliding slider 6 drives the first bevel rack 9 on its surface to move, and then drives the second bevel rack 10 engaged with the first bevel rack 9 to move toward the center of the clamping collar 5, and then drives the connecting seat 11 fixed to it to move toward the center of the clamping collar 5 through the second bevel rack 10, thereby pressing the end cover and completing the fixation of the end cover, and the connecting seat 11 is simultaneously driven by the gear 7 to move toward the center of the clamping collar 5 at the same time, ensuring that the axis between the two end covers is on the same axis, which is beneficial for workers to perform drilling operations through the hole in the center of the clamping collar 5, thereby improving the concentricity between the end covers.

[0049] When the connecting seat 11 moves toward the center of the clamping ring 5, it will drive the extrusion block 13 installed on its surface to move toward the center of the clamping ring 5. The first flexible protrusion 14 on the end face of the extrusion block 13 fits against the side surface of the end cover to improve the stability of the end cover during drilling, and the groove 15 on the end face of the first flexible protrusion 14 can increase the friction force during fixation, thereby improving the tightness of the end cover when fixed.

[0050] When the first flexible protrusion 14 is pressed against the surface of the end cover, the first flexible protrusion 14 will deform, causing the supporting rods 16 to diverge from each other and get stuck on the side surface of the end cover, thereby further improving the stability of the end cover.

[0051] When a worker needs to drill a hole on the surface of the end cover, and the diameter of the hole is much smaller than the diameter of the hole at the center of the clamping ring 5, the worker can use the limiting ring 18 to mark and limit the end face of the end cover surface to assist the worker in the subsequent drilling operation.

[0052] When workers need to drill holes of different diameters on the end face of the end cover, they can screw the second threaded rod 22 to make the threaded rods move closer to each other, thereby squeezing the arcuate sleeve 19 and making the connecting piece 20 retract into the annular sleeve, and compressing the first spring 21, thereby reducing the diameter of the limit ring 18 formed by the annular sleeve and the connecting piece 20, so as to improve the accuracy of workers when drilling holes with smaller diameters. When workers need to drill larger holes, they can screw the second threaded rod 22 to make the threaded rods move away from each other, and the connecting piece 20 is pushed out of the arcuate sleeve 19 under the action of the elastic force of the first spring 21 inside the arcuate sleeve 19, so that the arcuate sleeve 19 and the connecting piece 20 form a limit ring 18 with a larger diameter, thereby facilitating the workers' drilling operation.

[0053] When the worker has adjusted the second threaded rod 22, it can be adsorbed on the surface of the end cover through the magnet sheet 24, completing the position limitation between the arc-shaped shell 19 and the connecting piece 20 and the end cover, so that the limiting ring 18 formed by the arc-shaped shell 19 and the connecting piece 20 can be stably fixed on the surface of the end cover, preventing dislocation caused by vibration, which may lead to poor coaxiality of the drilling.

[0054] When a worker performs a drilling operation on the surface of the end cover, the surface of the end cover will vibrate. At this time, the magnet sheet 24 will transmit the vibration of the end cover surface to the connecting belt 27, and then transmit the vibration to the swing block 28 inside the vibration chamber 25 through the connecting belt 27. The vibration is converted into internal energy through the swing block 28, thereby reducing the vibration of the arc-shaped sleeve 19 and the connecting piece 20, preventing the misalignment of the drilling point during drilling due to the vibration of the arc-shaped sleeve 19 and the connecting piece 20, and also reducing the interference of the arc-shaped sleeve 19 and the connecting piece 20 on the drill bit due to the vibration.

[0055] When the diameter of the end cover to be clamped is large and cannot be directly fixed at the center of the clamping collar 5, the worker pulls up the pressure plate 31 to move the pressure plate 31 away from the top block 29 and place the top block 29 inside the end cover. The external motor then drives the first threaded rod 12 to rotate and moves the extrusion block 13 in a direction away from the center of the clamping collar 5, so that the top block 29 presses against the inner wall of the end cover. At this time, the worker loosens the pressure plate 31 so that the pressure plate 31 is pressed against the side wall of the end cover under the action of the elastic force of the second spring 30, thereby completing the fixation of the side surface of the large-diameter end cover.

[0056] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A processing device for improving the concentricity of an end cap, characterized by: It comprises a pair of clamping devices (1); surfaces of the clamping devices (1) facing away from each other are both fixedly connected with connection blocks (2); telescopic rods (3) are fixedly connected between the paired connection blocks (2); and a bottom plate (4) is fixedly connected between the telescopic rods (3); The clamping device (1) comprises a clamping collar (5); a plurality of uniformly arranged sliders (6) are slidably connected to the inner wall of the clamping collar (5) away from the connecting block (2); a gear (7) is rotatably connected to the surface of the clamping collar (5) on the side close to the slider (6); a toothed plate (8) meshing with the gear (7) is fixedly connected to the surface of the slider (6) on the side close to the gear (7); a first bevel rack (9) is fixedly connected to the end of the slider (6) away from the clamping collar (5); a second bevel rack (10) is meshingly connected to the end of the first bevel rack (9) away from the slider (6); a connecting seat (11) is fixedly connected to the end face of the second bevel rack (10) away from the slider (6); a first threaded rod (12) is threadedly connected to the end face of one of the sliders (6); A pair of symmetrically arranged support rods (17) are fixedly connected to the surface of the clamping collar (5) on one side away from the slider (6); one end of the support rod (17) close to the center of the clamping collar (5) is connected to a limiting ring (18); The limiting ring (18) includes a plurality of evenly arranged arc-shaped casings (19); an arc-shaped connecting piece (20) is provided between the casings, and the arc-shaped connecting piece (20) is slidably connected to the inside of the casing; a first spring (21) is fixedly connected between the connecting pieces (20) and inside the arc-shaped casing (19); a second threaded rod (22) is threadedly connected to one end of the support rod (17) close to the arc-shaped casing (19), and the second threaded rod (22) is fixedly connected to the surface of the arc-shaped casing (19); A plurality of evenly arranged second flexible protrusions (23) are fixedly connected to one end of the arc-shaped housing (19) close to the clamping collar (5); a magnet sheet (24) is fixedly connected to one end of the second flexible protrusion (23) close to the clamping collar (5); A vibration cavity (25) is provided inside the second flexible protrusion (23); a through hole (26) is provided between the vibration cavity (25) and the magnet sheet (24); a connecting belt (27) is fixedly connected to a surface of a side of the magnet sheet (24) close to the vibration cavity (25), and the connecting belt (27) passes through the through hole (26) and extends into the interior of the vibration cavity (25); and a swing block (28) is fixedly connected to an end of the connecting belt (27) away from the magnet sheet (24).

2. A processing device for improving the concentricity of an end cap according to claim 1, characterized in that: An extrusion block (13) is mounted on a surface of the connecting seat (11) away from the slider (6); a first flexible protrusion (14) is fixedly connected to a surface of the extrusion block (13) on a side close to the gear (7); and a plurality of evenly arranged grooves (15) are formed on the surface of the first flexible protrusion (14).

3. A processing device for improving the concentricity of an end cap according to claim 2, characterized in that: A pair of symmetrically arranged supporting rods (16) are fixedly connected to one side of the extrusion block (13) close to the gear (7); the supporting rods (16) are made of elastic material, and the supporting rods (16) are embedded in a flexible protrusion (14).

4. A processing device for improving the concentricity of an end cap according to claim 3, characterized in that: The end of the extrusion block (13) away from the slider (6) is fixedly connected to a top block (29); the surface of the top block (29) away from the gear (7) is fixedly connected to a second spring (30); the end of the second spring (30) away from the top block (29) is fixedly connected to a pressure plate (31).

5. A method for improving the concentricity of an end cap, the method using the device for improving the concentricity of an end cap according to any one of claims 1 to 4, characterized in that: The following steps are involved: S1. The worker now adjusts the distance between the two clamping devices (1) by using a telescopic rod, and fixes the two end caps by using the extrusion block (13) in the clamping device (1) so that the centers of the two end caps are on the same axis; S2. Then, the second threaded rod (22) is adjusted, and the limiting ring (18) is adjusted to a suitable diameter. The limiting ring (18) is adsorbed on the surface of the end cover through the magnet sheet (24) to complete the determination of the drilling position. Then, the drilling machine is inserted into the limiting ring (18) to complete the drilling operation.

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