A processing device for grinding inner hole of new energy hollow motor shaft

Abstract

This invention relates to the field of hollow motor shaft machining technology, and discloses a machining device for grinding the inner hole of a new energy hollow motor shaft, comprising: a grinding disc; a drive mechanism, wherein the drive mechanism is installed inside the grinding disc; a speed regulating mechanism, wherein a sleeve is provided at the end of the sleeve, and the speed regulating mechanism is installed inside the sleeve, the speed regulating mechanism being connected to the drive mechanism and drivingly connected to the grinding disc; and a cleaning mechanism, wherein a synchronization mechanism is installed on the movable plate, and the cleaning mechanism is connected to the synchronization mechanism, the cleaning mechanism being arranged opposite to the grinding disc. Through the linkage design of the drive mechanism and the speed regulating mechanism, the grinding disc can automatically increase its rotation speed according to the contact pressure when encountering areas with small hole diameters, achieving adaptive grinding for uneven hole diameters, ensuring grinding efficiency while effectively avoiding damage to the grinding disc or drive shaft due to excessive resistance.

Description

Technical Field

[0001] This invention relates to the field of hollow motor shaft processing technology, specifically to a processing device for grinding the inner hole of a new energy hollow motor shaft. Background Technology

[0002] As a key component of the transmission system, the machining accuracy of the inner bore surface of the hollow motor shaft directly affects the assembly performance and service life of the part. Currently, the finishing of the inner bore surface of the hollow motor shaft is usually achieved by grinding. The specific method is as follows: one end of the hollow motor shaft is fixed by a chuck, and the grinding disc is driven to rotate and feed along the axial direction of the shaft bore. The inner bore surface is continuously ground to achieve the required dimensional accuracy and surface quality.

[0003] However, in actual production, due to process deviations such as casting defects, heat treatment deformation, or accumulated machining errors, the shaft holes of hollow motor shafts often exhibit inconsistent roundness, manifesting as smaller diameters and irregular geometric shapes in localized areas. In such cases, existing grinding equipment, with its fixed grinding disc size and constant feed rate, experiences a sudden increase in the contact area between the grinding disc and the hole wall when grinding to areas with smaller diameters, leading to a significant rise in grinding resistance. This not only reduces grinding efficiency and prolongs processing time but also easily causes excessive radial compressive force on the grinding disc and its drive bearing. Long-term operation may result in grinding disc breakage, drive shaft bending, or damage to the transmission system, severely impacting equipment stability and processing reliability.

[0004] Furthermore, if metal chips generated during grinding are not removed in time, they can easily accumulate inside the shaft hole. Especially in small-diameter areas where grinding resistance is high, the chips, driven by the rotation of the grinding disc, will cause secondary scraping against the hole wall, forming defects such as scratches and roughening on the machined surface, severely damaging the surface integrity and dimensional consistency of the inner hole. Traditional devices lack an effective chip cleaning and removal mechanism, further restricting the final machining quality of the hollow motor shaft. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a processing device for grinding the inner hole of a hollow motor shaft in new energy applications. This device aims to overcome the problems of sudden changes in grinding resistance and chip scratches caused by uneven hole diameter, achieve adaptive grinding and real-time chip cleaning, thereby improving processing efficiency and quality.

[0006] The objective of this invention can be achieved through the following technical solutions: A machining apparatus for grinding the inner hole of a hollow motor shaft in a new energy source includes a machining bed, a clamping seat, a chuck, a movable plate, a driving component, and a moving component. The apparatus further includes: The grinding disc has a drive shaft at the output end of the drive component, a sleeve on the outer shell of the drive component, the sleeve is fitted over the drive shaft, the grinding disc is mounted on the sleeve, the outer periphery of the grinding disc away from the drive shaft is tapered, and several sets of spiral guide grooves are opened on the outer periphery of the grinding disc. A drive mechanism is installed inside the grinding disc; A speed regulating mechanism is provided at the end of the sleeve, and a speed regulating mechanism is installed inside the sleeve. The speed regulating mechanism is connected to the drive mechanism and is also connected to the grinding disc drive. The cleaning mechanism is provided, wherein a synchronization mechanism is mounted on the movable plate, and the cleaning mechanism is connected to the synchronization mechanism. The cleaning mechanism is arranged opposite to the grinding disc.

[0007] As a further aspect of the present invention: the driving mechanism includes: The magnetic ring has an annular groove and several air grooves at one end of the grinding disc near the sleeve. The magnetic ring is slidably installed in the annular groove. One side of the magnetic ring is provided with several piston rods that extend into the air grooves. The other side of the magnetic ring is provided with several elastic elements that abut against the end face of the sleeve. The grinding disc has several sets of movable slots, each set of movable slots has several slots and is distributed in a stepped manner. The movable slots are located in the conical area on the outer periphery of the end face of the grinding disc. A pressure rod is movably installed in the movable slot. The grinding disc also has a connecting slot connecting the movable slots and the air slots. A push ring is movably installed inside a sleeve. Several guide cylinders are provided through one end of the sleeve near the grinding disc. Several magnetic rods are provided on one side of the push ring. The magnetic rods are sleeved inside the guide cylinders. The magnetic rods have opposite magnetism to the magnetic ring.

[0008] As a further aspect of the present invention: the speed regulating mechanism includes: The main gear is fixed to the periphery of the drive shaft; A shaft is rotatably mounted inside a sleeve. A main bevel gear is provided on the shaft. A connecting shaft is provided on the grinding disc. A driven bevel gear is provided on the connecting shaft. The driven bevel gear meshes with the main bevel gear. The driven member is mounted on the shaft, and a toothed belt is fitted between the driven member and the main gear; An adjusting plate is movably sleeved around the shaft. A collar is provided on the push ring, and the adjusting plate is sleeved inside the collar. The adjusting plate is connected to the driven member. A fixed plate is fixed on the shaft. The fixed plate is close to the grinding disc. An adjusting plate is located between the driven member and the fixed plate. An elastic element two is provided on the fixed plate. The elastic element two elastically abuts against the adjusting plate.

[0009] As a further embodiment of the present invention: the driven member includes two sets of side plates, the two sets of side plates are fixed around the shaft, and several sets of driven gears are installed between the two sets of side plates. The gear belt meshes with several of the driven gears. Several sets of sliding grooves are opened on the side plates. Slider is provided at both ends of the driven gear. The slider slides along the sliding groove. Several push-pull rods are rotatably connected to the adjusting plate. The other end of the push-pull rod is rotatably connected to the slider.

[0010] As a further aspect of the present invention: two sets of elastic elements are symmetrically installed on the inner end face of the sleeve, and a pressure roller is rotatably installed on the other end of the elastic element, and the pressure roller elastically abuts against the outer side of the toothed belt.

[0011] As a further aspect of the present invention: the cleaning mechanism includes: The mounting rod is connected to the synchronization mechanism and passes through the clamp and chuck. The mounting rod has a flow channel and an air channel. A connecting sleeve is rotatably installed at the end of the mounting rod. The connecting sleeve is connected to the flow channel and to an external water supply device. An air valve is provided on the outside of the mounting rod and is connected to the air channel. The other end of the mounting rod is provided with several insert rods. The end face of the grinding disc is provided with several slots, and the insert rods are inserted into the slots. A cleaning component is provided around the mounting rod. The cleaning component includes an airbag disc, a nozzle, and a brush plate. The airbag disc is fixed around the mounting rod and communicates with an air passage. Several nozzles are connected around the mounting rod and communicate with a flow passage. The nozzles penetrate the airbag disc, and the area of ​​the airbag disc that is penetrated is sealed. The output end of the nozzle is located between the airbag disc and the grinding disc. Several brush plates are provided around the mounting rod, and a scraper is provided on the brush plate. The scraper is located between the brush plate and the airbag disc. A sealing plate, which is installed inside the hollow shaft of the chuck.

[0012] As a further embodiment of the present invention: the synchronization mechanism includes a push rod, the push rod is fixed on a movable plate, the other end of the push rod is provided with a connecting rod, the other end of the connecting rod is provided with a fixing ring, one end of the fixing ring is rotatably mounted with a rotating ring, the rotating ring is provided with a plurality of clamping blocks around its periphery, the mounting rod passes through the fixing ring and the rotating ring, and the plurality of clamping blocks clamp the mounting rod.

[0013] As a further aspect of the present invention: a collection mechanism is installed on the processing bed, the collection mechanism includes a slide plate, the slide plate is slidably installed on the processing bed, a cover is provided on the slide plate, one end of the cover is open, the drive shaft and the sleeve both pass through the cover, the cover is fitted onto the end of the hollow shaft, a collection hopper is provided at the bottom of the cover, a suction pump is installed on the slide plate, and the suction pump is connected to the collection hopper through a conduit.

[0014] The beneficial effects of this invention are: (1) In this invention, the linkage design of the drive mechanism and the speed regulation mechanism enables the grinding disc to automatically increase the rotation speed according to the contact pressure when it encounters a region with a small hole diameter, thereby realizing adaptive grinding for uneven hole diameter. This ensures grinding efficiency and effectively avoids damage to the grinding disc or drive shaft caused by excessive resistance.

[0015] (2) In this invention, a cleaning mechanism integrating a nozzle, an airbag disc and a brush plate is adopted and moved synchronously with the grinding disc. It can spray water and mechanically scrape the front of the grinding area during the grinding process. Combined with the spiral guide groove on the grinding disc, it realizes real-time and efficient cleaning and guiding of grinding debris, significantly reducing the risk of debris scratching the processed surface and improving the quality of the inner hole.

[0016] (3) In this invention, pressure signals are transmitted by magnetic coupling (magnetic ring and magnetic rod), and stepless speed regulation is achieved by changing the effective diameter of the driven part. The structure is compact, the response is sensitive, and mechanical automatic feedback and regulation are realized with high reliability. Attached Figure Description

[0017] The invention will now be further described with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the collecting mechanism structure in this invention; Figure 3 This is a schematic diagram of the synchronization mechanism structure in this invention; Figure 4 This is a schematic diagram of the connection structure between the synchronization mechanism and the cleaning mechanism in this invention; Figure 5 This is a schematic diagram of the grinding disc structure in this invention; Figure 6 This is a schematic diagram of the drive mechanism structure in this invention; Figure 7 This is a schematic diagram of the speed regulating mechanism in this invention; Figure 8 This is a schematic diagram of the driven component structure in this invention; Figure 9 This is a schematic diagram of the cleaning component structure in this invention.

[0019] In the picture: 1. Machining machine; 2. Clamp; 3. Chuck; 4. Moving plate; 5. Driving component; 51. Drive shaft; 52. Sleeve; 53. Sleeve; 531. Guide cylinder; 54. Housing; 6. Grinding disc; 61. Connecting shaft; 62. Driven bevel gear; 63. Guide groove; 64. Slot; 7. Driving mechanism; 71. Ring groove; 72. Air groove; 73. Moving groove; 74. Connecting groove; 75. Magnetic ring; 751. Piston rod; 752. Elastic element one; 76. Pressure rod; 77. Push ring; 771. Magnetic rod; 78. Collar; 8. Speed ​​regulating mechanism; 81. Main gear; 82. Shaft; 821. Main bevel gear; 83. Driven component; 831. Side plate; 8311. Slide groove; 832. Driven gear; 832. 1. Slider; 84. Toothed belt; 85. Adjusting plate; 851. Push-pull rod; 86. Fixing plate; 861. Elastic component two; 87. Elastic component three; 88. Pressure roller; 9. Cleaning mechanism; 91. Mounting rod; 911. Flow channel; 912. Air channel; 913. Insert rod; 92. Cleaning component; 921. Airbag disc; 922. Nozzle; 923. Brush plate; 924. Shovel plate; 93. Sealing plate; 94. Connecting sleeve; 95. Air valve; 10. Synchronization mechanism; 101. Push rod; 102. Connecting rod; 103. Fixing ring; 104. Rotating ring; 105. Clamping block; 11. Collection mechanism; 111. Slide plate; 112. Cover; 113. Collection hopper; 114. Suction pump; 12. Moving component. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] like Figures 1-8 As shown, a machining device for grinding the inner hole of a hollow motor shaft for new energy applications includes a machining bed 1, a clamping seat 2, a chuck 3, a movable plate 4, a driving component 5, and a moving component 12. The device also includes: The grinding disc 6 has a drive shaft 51 at the output end of the drive component 5. The outer shell 54 of the drive component 5 has a sleeve 52. The sleeve 52 is fitted over the drive shaft 51. The grinding disc 6 is mounted on the sleeve 52. The outer periphery of the end of the grinding disc 6 away from the drive shaft 51 is tapered. Several sets of spiral guide grooves 63 are opened on the periphery of the grinding disc 6. Drive mechanism 7 is installed inside the grinding disc 6; The speed regulating mechanism 8 is provided at the end of the sleeve 52, and the speed regulating mechanism 8 is installed inside the sleeve 53. The speed regulating mechanism 8 is connected to the drive mechanism 7 and is connected to the grinding disc 6 in a transmission manner. The cleaning mechanism 9 is mounted on the movable plate 4 and a synchronization mechanism 10 is installed on the synchronization mechanism 10. The cleaning mechanism 9 is connected to the synchronization mechanism 10 and is positioned opposite to the grinding disc 6.

[0022] The drive mechanism 7 includes: The magnetic ring 75 and the grinding disc 6 near the sleeve 53 are provided with an annular groove 71 and several air grooves 72. The magnetic ring 75 is slidably installed in the annular groove 71. One side of the magnetic ring 75 is provided with several piston rods 751, which extend into the air grooves 72. The other side of the magnetic ring 75 is provided with several elastic elements 752, which abut against the end face of the sleeve 53. The grinding disc 6 has several sets of movable grooves 73. Each set of movable grooves 73 has several grooves and is distributed in a stepped manner. The movable grooves 73 are located in the conical area on the outer periphery of the end face of the grinding disc 6. The pressure rod 76 is movably installed in the movable grooves 73. The grinding disc 6 also has a connecting groove 74 that connects the movable grooves 73 and the air grooves 72. Push ring 77 is movably installed inside sleeve 53. Several guide cylinders 531 are provided through one end of sleeve 53 near grinding disc 6. Several magnetic rods 771 are provided on one side of push ring 77. The magnetic rods 771 are sleeved inside guide cylinders 531. The magnetic rods 771 have opposite magnetism to magnetic ring 75.

[0023] Speed ​​regulating mechanism 8 includes: Main gear 81 is fixed around the drive shaft 51; A shaft 82 is rotatably mounted inside a sleeve 53. A main bevel gear 821 is provided on the shaft 82. A connecting shaft 61 is provided on the grinding disc 6. A driven bevel gear 62 is provided on the connecting shaft 61. The driven bevel gear 62 meshes with the main bevel gear 821. Follower 83 is mounted on shaft 82, and a toothed belt 84 is fitted between follower 83 and main gear 81; Adjusting plate 85 is movably sleeved around shaft 82. Push ring 77 is provided with collar 78. Adjusting plate 85 is sleeved in collar 78. Adjusting plate 85 is connected to driven member 83. Fixed plate 86 is fixed on shaft 82. Fixed plate 86 is close to grinding disc 6. Adjusting plate 85 is located between driven member 83 and fixed plate 86. Fixed plate 86 is provided with elastic element 2 861. Elastic element 2 861 elastically abuts against adjusting plate 85.

[0024] The driven member 83 includes two sets of side plates 831, which are fixed around the shaft 82. Several sets of driven gears 832 are installed between the two sets of side plates 831. The gear belt 84 meshes with several of the driven gears 832. Several sets of sliding grooves 8311 are provided on the side plates 831. Slider 8321 is provided at both ends of the driven gears 8321. The slider 8321 slides along the sliding groove 8311. Several push-pull rods 851 are rotatably connected to the adjusting plate 85. The other end of the push-pull rod 851 is rotatably connected to the slider 8321.

[0025] In practical application, the hollow motor shaft to be ground is first fixed by the chuck 3, and then the movable plate 4 is moved by the moving part 12, so that the driving part 5 moves towards the hollow motor shaft, so that the grinding disc 6 enters the shaft hole of the hollow motor shaft. At the same time, the driving part 5 is started to make the driving shaft 51 rotate, so that the grinding disc 6 grinds the inner wall of the shaft hole of the hollow motor shaft while moving horizontally. When grinding reaches the area where the shaft hole diameter is too small, the tapered part at the front end of the grinding disc 6 will contact the area with the small diameter. Depending on the degree of small diameter, the corresponding pressure rod 76 will be pressed into the movable groove 73. The air in the movable groove 73 will be forced into the air groove 72 through the connecting groove 74, thereby pushing the piston rod 751 and the magnetic ring 75 to move towards the magnetic rod 771. Since the magnetic ring 75 and the magnetic rod 771 have opposite magnetism, this causes several magnetic rods 771 to drive the push ring 77 to move. Through the collar 78, the adjusting plate 85 moves towards the driven member 83, thus causing several push-pull rods 85 to move towards the driven member 83. The slider 8321 on 1 moves along the inner end of the slide groove 8311, which causes several driven gears 832 to move closer to each other, thereby reducing the size of the driven member 83. Since the size of the main gear 81 remains unchanged and the speed of the drive shaft 51 remains unchanged, the speed of the driven member 83 is increased. Through the cooperation of the main bevel gear 821 and the driven bevel gear 62, the speed of the grinding disc 6 is increased, which can speed up the grinding time in the area with a small shaft hole diameter. Under the condition of stable horizontal movement, the grinding disc 6 can improve the overall grinding efficiency of the hollow motor shaft and avoid the grinding disc being damaged by excessive radial extrusion force. By opening several guide grooves 63 around the grinding disc 6, the chips generated during grinding by the grinding disc 6 will enter the guide grooves 63. Under the guidance of the guide grooves 63, the chips will move to the rear end of the grinding disc 6. This can reduce the amount of chips at the front end of the grinding disc 6 and avoid the chips from being scraped against the inner wall of the shaft hole under the rotation of the grinding disc 6, thus preventing defects.

[0026] Furthermore, two sets of elastic elements 87 are symmetrically installed on the inner end face of the sleeve 53. A pressure roller 88 is rotatably installed on the other end of the elastic element 87, and the pressure roller 88 elastically abuts against the outer side of the toothed belt 84.

[0027] In practical application, when the driven gears 832 move closer together to reduce the size of the driven member 83, the pressure roller 88 always elastically resists the toothed belt 84. This causes the toothed belt 84 to be squeezed and bent, thereby ensuring that the toothed belt 84 meshes with the main gear 81 and the driven gears 832, ensuring the transmission between the main gear 81, the toothed belt 84 and the driven gears 832. This, in turn, ensures that the grinding disc 6 can achieve adaptive acceleration according to the degree of smallness of the shaft hole inner diameter, improves the overall grinding efficiency of the hollow motor shaft, and avoids damage to the grinding disc due to excessive radial extrusion force.

[0028] like Figure 2 , Figure 3 , Figure 4 and Figure 9 As shown, the cleaning mechanism 9 includes: Mounting rod 91 is connected to synchronization mechanism 10. Mounting rod 91 passes through clamp 2 and chuck 3. Flow channel 911 and air channel 912 are opened inside mounting rod 91. Connecting sleeve 94 is rotatably installed at the end of mounting rod 91. Connecting sleeve 94 is connected to flow channel 911 and connected to external water supply equipment. Air valve 95 is provided on the outside of mounting rod 91. Air valve 95 is connected to air channel 912. Several insertion rods 913 are provided at the other end of mounting rod 91. Several slots 64 are opened on the end face of grinding disc 6. Insertion rods 913 are inserted into slots 64. Cleaning component 92 is provided around mounting rod 91. Cleaning component 92 includes airbag plate 921, nozzle 922 and brush plate 923. Airbag plate 921 is fixed around mounting rod 91 and communicates with air passage 912. Several nozzles 922 are connected around mounting rod 91 and communicate with flow passage 911. The nozzles 922 penetrate airbag plate 921 and the area of ​​airbag plate 921 that is penetrated is sealed. The output end of nozzle 922 is located between airbag plate 921 and grinding plate 6. Several brush plates 923 are provided around mounting rod 91. Scraper plate 924 is provided on brush plate 923 and is located between brush plate 923 and airbag plate 921. The sealing plate 93 is installed inside the hollow shaft of the chuck 3.

[0029] The synchronization mechanism 10 includes a push rod 101, which is fixed on the movable plate 4. The other end of the push rod 101 is provided with a connecting rod 102, and the other end of the connecting rod 102 is provided with a fixing ring 103. A rotating ring 104 is rotatably installed on one end of the fixing ring 103. Several clamping blocks 105 are provided around the rotating ring 104. The mounting rod 91 passes through the fixing ring 103 and the rotating ring 104, and the clamping blocks 105 clamp the mounting rod 91.

[0030] In practical application, before grinding, the mounting rod 91 is first passed through the hollow motor shaft, chuck 3, and clamp 2. When one end of the mounting rod 91 passes through the fixing ring 103 and rotating ring 104, the mounting rod 91 is clamped and fixed by several clamping blocks 105. Several insert rods 913 are inserted into the slot 64, and then the external water supply pipe is connected to the connecting sleeve 94. Next, air is injected into the airbag plate 921 through the air valve 95 and air passage 912, so that the outer periphery of the airbag plate 921 abuts against the inner wall of the hollow motor shaft hole. This causes the grinding disc 6 to move toward the hollow motor shaft. The push rod 101 and connecting rod 102 are set so that the fixing ring 103 and rotating ring 104 drive the mounting rod 91 to move synchronously. At this time, the external water supply equipment supplies water. Water enters several nozzles 922 through the flow channel 911. At the same time, the grinding disc 6 drives the mounting rod 91 to rotate. This causes the water sprayed from the nozzles 922 to wash away the grinding debris through the guide groove 63, which can further reduce the debris at the moving front end of the grinding disc 6. Meanwhile, the brush plate 923 and the scraper plate 924 can clean the debris at the front end, removing debris or impurities adhering to the inner wall of the shaft hole, thereby further reducing the debris at the moving front end of the grinding disc 6 and further preventing the debris from scraping the inner wall of the shaft hole again under the rotation of the grinding disc 6, thus avoiding defects. The cleaned debris or impurities are finally blocked by the sealing plate 93, which facilitates the centralized treatment of these debris or impurities.

[0031] like Figure 2 and Figure 4 As shown, a collection mechanism 11 is installed on the processing bed 1. The collection mechanism 11 includes a slide plate 111, which is slidably installed on the processing bed 1. A cover 112 is provided on the slide plate 111. One end of the cover 112 is open. The drive shaft 51 and the sleeve 52 both pass through the cover 112. The cover 112 is fitted onto the end of the hollow motor shaft. A collection hopper 113 is provided at the bottom of the cover 112. A suction pump 114 is installed on the slide plate 111. The suction pump 114 is connected to the collection hopper 113 through a conduit.

[0032] In practical application, before grinding, the cover 112 is placed on one end of the hollow motor shaft. During grinding, the suction pump 114 is started, and the debris or impurities that have been cleaned to the rear end of the grinding disc 6 will move along the inner wall of the hollow motor shaft to the cover 112. These debris or impurities are cleaned out through the collection bucket 113 and the conduit to avoid affecting the grinding effect.

[0033] Working principle: Before processing begins, the hollow motor shaft is fixed on the chuck 3. The mounting rod 91 is passed through its inner hole and connected to the synchronization mechanism 10, allowing the insertion rod 913 to be inserted into the slot 64 of the grinding disc 6. The air bladder disc 921 is inflated to make it fit against the hole wall. During processing, the drive component 5 drives the grinding disc 6 to rotate via the drive shaft 51. At the same time, the moving component 12 pushes the movable plate 4 to feed the entire grinding head (including the grinding disc 6 and the cleaning mechanism 9) into the inner hole of the hollow motor shaft. The grinding disc 6 grinds the hole wall, while the nozzle 922 of the cleaning mechanism 9 sprays water, and the brush plate 923 and scraper plate 924 perform pre-cleaning. When the tapered section of the grinding disc 6 contacts the area with a smaller hole diameter, the pressure rod 76 at the corresponding position is pressed into the movable groove 73. Compressed air enters the air groove 72 through the connecting groove 74, pushing the magnetic ring 75 to move. The magnetic ring 75 pushes the magnetic rod 771 through magnetic force, driving the push ring 77 and the adjusting plate 85 to move. The adjusting plate 85, via the push-pull rod 851, causes the driven gear 832 in the driven member 83 to retract towards the center along the slide groove 8311, reducing its effective working diameter. Since the main gear 81 rotates at a constant speed, under the transmission of the toothed belt 84, the speed of the driven member 83 and its coaxial shaft 82 increases. This, in turn, through the meshing of the main bevel gear 821 and the driven bevel gear 62, ultimately increases the speed of the grinding disc 6, enabling rapid passage through the resistance zone. The grinding debris is conveyed backward by the spiral guide groove 63, and finally collected by the collection hopper 113 at the casing 112 and discharged by the suction pump 114.

Claims

1. A machining apparatus for grinding the inner hole of a hollow motor shaft for new energy applications, comprising a machining bed (1), a clamping seat (2), a chuck (3), a movable plate (4), a driving component (5), and a moving component (12), characterized in that, The device further includes: The grinding disc (6) has a drive shaft (51) at the output end of the drive component (5). A sleeve (52) is provided on the outer shell (54) of the drive component (5). The sleeve (52) is sleeved on the drive shaft (51). The grinding disc (6) is mounted on the sleeve (52). The outer periphery of the end of the grinding disc (6) away from the drive shaft (51) is tapered. Several sets of spiral guide grooves (63) are opened on the periphery of the grinding disc (6). Drive mechanism (7), the drive mechanism (7) is installed inside the grinding disc (6); Speed ​​regulating mechanism (8), the end of the sleeve (52) is provided with a sleeve (53), the speed regulating mechanism (8) is installed in the sleeve (53), the speed regulating mechanism (8) is connected to the drive mechanism (7), and the speed regulating mechanism (8) is connected to the grinding disc (6) in a transmission. The cleaning mechanism (9) is mounted on the movable plate (4) and a synchronization mechanism (10) is connected to the synchronization mechanism (10). The cleaning mechanism (9) is arranged opposite to the grinding disc (6).

2. The machining apparatus for grinding the inner hole of a new energy hollow motor shaft according to claim 1, characterized in that, The drive mechanism (7) includes: The magnetic ring (75) has an annular groove (71) and several air grooves (72) at one end of the grinding disc (6) near the sleeve (53). The magnetic ring (75) is slidably installed in the annular groove (71). One side of the magnetic ring (75) is provided with several piston rods (751), which extend into the air grooves (72). The other side of the magnetic ring (75) is provided with several elastic elements (752), which abut against the end face of the sleeve (53). The grinding disc (6) has several sets of movable grooves (73), each set of movable grooves (73) has several and is distributed in a stepped manner. The movable grooves (73) are located in the conical area on the outer side of the end face of the grinding disc (6). The pressure rod (76) is movably installed in the movable grooves (73). The grinding disc (6) also has a connecting groove (74) connecting the movable grooves (73) and the air grooves (72). Push ring (77), the push ring (77) is movably installed in sleeve (53), the sleeve (53) has several guide cylinders (531) through one end near the grinding disc (6), the push ring (77) has several magnetic rods (771) on one side, the magnetic rods (771) are sleeved in the guide cylinders (531), the magnetic rods (771) have opposite magnetism to the magnetic ring (75).

3. The processing apparatus for grinding the inner hole of a new energy hollow motor shaft according to claim 2, characterized in that, The speed regulating mechanism (8) includes: The main gear (81) is fixed around the drive shaft (51); A shaft (82) is rotatably mounted in a sleeve (53). A main bevel gear (821) is provided on the shaft (82). A connecting shaft (61) is provided on the grinding disc (6). A driven bevel gear (62) is provided on the connecting shaft (61). The driven bevel gear (62) meshes with the main bevel gear (821). Follower (83), which is mounted on shaft (82), and a toothed belt (84) is fitted between follower (83) and main gear (81). Adjusting plate (85), the adjusting plate (85) is movably sleeved around the shaft (82), the push ring (77) is provided with a collar (78), the adjusting plate (85) is sleeved in the collar (78), and the adjusting plate (85) is connected to the driven member (83); A fixed plate (86) is fixed on the shaft (82). The fixed plate (86) is close to the grinding disc (6). An adjusting plate (85) is located between the driven member (83) and the fixed plate (86). An elastic element (861) is provided on the fixed plate (86). The elastic element (861) elastically abuts against the adjusting plate (85).

4. The machining apparatus for grinding the inner hole of a new energy hollow motor shaft according to claim 3, characterized in that, The driven member (83) includes two sets of side plates (831), which are fixed around the shaft (82). Several sets of driven gears (832) are installed between the two sets of side plates (831). The toothed belt (84) meshes with several of the driven gears (832). Several sets of sliding grooves (8311) are provided on the side plates (831). Both ends of the driven gears (832) are provided with sliders (8321). The sliders (8321) slide along the sliding grooves (8311). Several push-pull rods (851) are rotatably connected to the adjusting plate (85). The other end of the push-pull rods (851) is rotatably connected to the sliders (8321).

5. The machining apparatus for grinding the inner hole of a new energy hollow motor shaft according to claim 4, characterized in that, Two sets of elastic elements (87) are symmetrically installed on the inner end face of the sleeve (53). A pressure roller (88) is rotatably installed on the other end of the elastic element (87). The pressure roller (88) elastically abuts against the outer side of the toothed belt (84).

6. The machining apparatus for grinding the inner hole of a new energy hollow motor shaft according to claim 1, characterized in that, The cleaning mechanism (9) includes: Mounting rod (91), which is connected to synchronization mechanism (10), passes through clamp (2) and chuck (3), and has flow channel (911) and air channel (912) inside. A connecting sleeve (94) is rotatably installed at the end of mounting rod (91), which is connected to flow channel (911) and connected to external water supply equipment. An air valve (95) is provided on the outside of mounting rod (91), which is connected to air channel (912). Several insert rods (913) are provided at the other end of mounting rod (91), and several slots (64) are provided on the end face of grinding disc (6). The insert rods (913) are inserted into the slots (64). A cleaning component (92) is provided around the mounting rod (91). The cleaning component (92) includes an airbag disc (921), a nozzle (922), and a brush plate (923). The airbag disc (921) is fixed around the mounting rod (91) and communicates with the air passage (912). Several nozzles (922) are connected around the mounting rod (91). The nozzles (922) are connected to the flow passage (911). The nozzle (922) is connected to the airbag disc (921), and the area of ​​the airbag disc (921) that is penetrated is sealed. The output end of the nozzle (922) is located between the airbag disc (921) and the grinding disc (6). The mounting rod (91) is provided with several brush plates (923) around its periphery. The brush plates (923) are provided with scraper plates (924), and the scraper plates (924) are located between the brush plates (923) and the airbag disc (921). A sealing plate (93) is installed inside the hollow shaft of the chuck (3).

7. The machining apparatus for grinding the inner hole of a new energy hollow motor shaft according to claim 6, characterized in that, The synchronization mechanism (10) includes a push rod (101), which is fixed on the movable plate (4). The other end of the push rod (101) is provided with a connecting rod (102), and the other end of the connecting rod (102) is provided with a fixing ring (103). A rotating ring (104) is rotatably installed on one end of the fixing ring (103). Several clamping blocks (105) are provided around the rotating ring (104). The mounting rod (91) passes through the fixing ring (103) and the rotating ring (104), and the several clamping blocks (105) clamp the mounting rod (91).

8. The machining apparatus for grinding the inner hole of a new energy hollow motor shaft according to claim 6, characterized in that, A collection mechanism (11) is installed on the processing bed (1). The collection mechanism (11) includes a slide plate (111). The slide plate (111) is slidably installed on the processing bed (1). A cover (112) is provided on the slide plate (111). One end of the cover (112) is open. The drive shaft (51) and the sleeve (52) both pass through the cover (112). The cover (112) is fitted onto the end of the hollow shaft. A collection hopper (113) is provided at the bottom of the cover (112). A suction pump (114) is installed on the slide plate (111). The suction pump (114) is connected to the collection hopper (113) through a conduit.

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