A vibration polishing device for machining a reducer gear

Abstract

The application discloses a kind of vibration polishing equipment for gear machining of speed reducer, including polishing tank, its top is open, bottom is equipped with blanking opening, vibration motor is fixedly connected on side wall, polishing tank is configured to accommodate abrasive;Movable mechanism has movable end for fixedly connecting bevel gear, bevel gear is coaxially arranged with polishing tank;Outer limiting cylinder is coaxially fixedly connected in the top opening of polishing tank;Inner material guide cover is coaxially arranged directly above bevel gear, inner material guide cover and outer limiting cylinder are enclosed to form annular blanking passage, blanking passage is vertically arranged opposite tooth portion of bevel gear;Screw conveyor is provided with inlet in bottom end with blanking opening communication, top end is provided with discharge pipe, outlet end of discharge pipe is arranged opposite blanking passage.The inner material guide cover and outer limiting cylinder of the present application can guide abrasive to the tooth portion of bevel gear for directional delivery, to realize effective polishing to the depth of bevel gear tooth groove, improve the polishing effect of vibration polishing equipment to bevel gear.

Description

Technical Field

[0001] This invention belongs to the technical field of vibration polishing equipment, and particularly relates to a vibration polishing equipment for gear processing of reducers. Background Technology

[0002] Vibratory polishing machines, also known as vibratory grinding machines or vibratory polishing machines, are batch free abrasive finishing equipment. They rely on three-dimensional vibration to drive the workpiece and the grinding media to rub and collide with each other, achieving deburring, chamfering, roughness reduction, polishing, and oxide scale removal. They are very suitable for batch processing of irregularly shaped parts, gears, and small hardware parts.

[0003] During the machining process of reducer bevel gears, a vibratory polishing machine is required to remove tool marks on the tooth surface and micro-burrs on the tooth root, smooth the tooth root transition area, eliminate the source of fatigue cracks, improve tooth surface roughness, optimize meshing state, reduce operating noise, and improve bending fatigue life.

[0004] When existing vibratory polishing machines are in operation, the grinding media inside move relative to the bevel gears as the equipment vibrates. However, the mainstream flow of the media is difficult to cut perpendicularly into the tooth groove opening of the bevel gears, and most of the abrasive only sweeps across the outer edge of the tooth surface. The flow space at the tooth root position is narrow, the internal abrasive is slowly renewed and replaced, and the grinding debris is easy to accumulate and remain, making it difficult to obtain a continuous and effective friction effect. In the end, polishing dead corners are formed, resulting in unevenness in the tooth root polishing and the outer edge of the tooth surface being not fully processed.

[0005] Therefore, it is necessary to improve the existing vibratory polishing equipment. Summary of the Invention

[0006] The purpose of this invention is to overcome the defects in the prior art and provide a vibration polishing device for gear reducer gear processing, which improves the polishing effect on bevel gears of gearboxes.

[0007] To achieve the above objectives, the specific technical solution of the vibration polishing equipment for gear machining of reducers according to the present invention is as follows: A vibratory polishing device for machining reducer gears includes: The polishing tank has a cylindrical structure with an open top and a material inlet at the bottom. A vibrating motor is fixedly connected to the side wall. The polishing tank is configured to hold abrasive. The movable mechanism has a movable end for fixing a bevel gear, the bevel gear being coaxially arranged with the polishing groove; An outer limiting cylinder is coaxially and fixedly connected inside the top opening of the polishing tank; An inner guide cover is coaxially disposed directly above the bevel gear. The inner guide cover and the outer limiting cylinder together form an annular material discharge channel, which is vertically disposed directly opposite the tooth portion of the bevel gear. The screw conveyor has an inlet at the bottom that communicates with the discharge port, and an outlet pipe at the top, with the outlet end of the outlet pipe extending directly above the discharge channel.

[0008] Preferably, a cylindrical screening tank is coaxially fixedly connected to the bottom of the polishing tank, a vertically extending support is fixedly connected to the bottom of the screening tank, a shock-absorbing pad is fixedly connected to the bottom end of the support, a slag discharge port is provided at the bottom of the screening tank, and a material outlet is provided on the side. A screen is detachably connected inside the screening tank. The screen divides the inner cavity of the screening tank into an upper cavity and a lower cavity. The material discharge port and the material outlet are connected to the upper cavity, the slag discharge port is connected to the lower cavity, and the material outlet is located adjacent to the screen.

[0009] Preferably, the screen is inclined inside the screening trough, and the discharge port is located adjacent to the lowest horizontal height side of the screen; The horizontal height of the discharge port is greater than that of the inlet port, and a flexible buffer tube is provided between the discharge port and the inlet port.

[0010] Preferably, the side of the outer limiting cylinder is provided with at least three hook portions at equal intervals around its axis. The hook portions have a U-shaped structure with the opening facing downward. The hook portions are inserted into the edge of the top opening of the polishing groove. The hook portions are threaded with a locking screw extending radially along the polishing groove. The end of the locking screw abuts against the outer wall of the polishing groove.

[0011] Preferably, the movable mechanism includes a base and a vertically arranged first cylinder. The bottom end of the first cylinder is connected to the base via a rotary reducer, and a horizontally extending crossbeam is fixedly connected to the top end. A vertically extending guide rod is fixedly connected to the end of the crossbeam opposite to the first cylinder. The guide rod is coaxially disposed through the shaft hole of the bevel gear, and a nut is threadedly connected to the bottom end of the guide rod. An inner guide cover is coaxially disposed on the guide rod, and the bevel gear is limited from the top and bottom sides by the inner guide cover and the nut.

[0012] Preferably, the inner guide cover has a conical structure, with a sleeve at its top that slides coaxially with the guide rod, and elastic rings circumferentially arranged around the bottom edge.

[0013] Preferably, a radial limiting part is fixedly connected to the nut, the radial limiting part has a tapered structure, and a through hole for passing the guide rod is opened along its axis; The bottom end of the guide rod has a through hole along its radial direction.

[0014] Preferably, a rotating sleeve is coaxially sleeved on the guide rod, and the inner ring of a bearing is fixedly connected to the outer circumference of the rotating sleeve; A vertically extending second cylinder is fixedly connected to the crossbeam. The telescopic end of the second cylinder is fixedly connected to the outer ring of the bearing. A drive assembly that is connected to the rotating sleeve is provided on the outer ring of the bearing. The bottom end of the rotating sleeve is threadedly connected to the sleeve portion.

[0015] Preferably, the inner diameter of the outer limiting cylinder gradually increases downward along its own axial direction to form an inner conical surface, and a chamfer is provided on the inner circumferential side of the top opening of the outer limiting cylinder.

[0016] Preferably, a limiting ring is fixedly connected to the cylinder body of the first cylinder, and a vertically extending limiting rod is fixedly connected to the crossbeam, with the limiting ring and the limiting rod slidingly coaxially engaged.

[0017] The vibration polishing equipment for gear processing of reducers of the present invention has the following advantages: the inner guide cover and the outer limiting cylinder can guide the abrasive to the tooth part of the bevel gear for directional delivery, thereby realizing effective grinding of the deep groove of the bevel gear and improving the polishing effect of the vibration polishing equipment on the bevel gear. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the vibration polishing equipment of the present invention; Figure 2 This is a schematic diagram of the screw conveyor of the present invention; Figure 3 This is a schematic diagram of the structure of the active mechanism of the present invention; Figure 4 This is a schematic diagram of the connection structure between the bevel gear, the outer limiting cylinder, and the inner guide cover of the present invention; Figure 5 This is an exploded view of the active mechanism of the present invention; Figure 6 This is a schematic diagram of the structure of the inner material guide cover of the present invention; Figure 7 This is a schematic diagram of the structure of the outer limiting cylinder of the present invention; Figure 8 This is a schematic diagram of the connection structure between the polishing tank and the screening tank of the present invention; Figure 9 This is a cross-sectional view of the polishing tank and the screening tank of the present invention; Figure 10 This is a schematic diagram of the polishing tank structure of the present invention; Figure 11 This is a schematic diagram of the installation structure of the screen in the screening tank according to the present invention; Figure 12 This is a schematic diagram of the screening groove of the present invention; Figure 13 This is a schematic diagram of the bevel gear to be machined; Explanation of markings in the diagram: 1. Polishing tank; 2. Screening tank; 3. Outer limiting cylinder; 4. Inner guide cover; 5. Screw conveyor; 6. Movable mechanism; 7. Nut; 8. Screen; 9. Bevel gear; 101. Vibrating motor; 102. Material discharge port; 201. Material outlet; 202. Slag discharge port; 203. Support leg; 204. Shock-absorbing pad; 205. Inner flange; 301. Hook; 302. Locking screw; 303. Chamfer; 304. Inner conical surface; 401. Sleeve connection; 4 02. Elastic ring; 501. Feed inlet; 502. Discharge pipe; 503. Buffer pipe; 601. First cylinder; 602. Rotary reducer; 603. Limiting rod; 604. Limiting ring; 605. Top beam; 606. Second cylinder; 607. Guide rod; 608. Rotating sleeve; 609. Bearing; 610. Through hole; 611. Drive assembly; 612. Base; 701. Radial limiting part; 801. Outer frame part; 901. Gear tooth part; 902. Shaft hole part. Detailed Implementation

[0019] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solutions of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0020] The terms "top surface," "bottom surface," and "full surface" are used with reference to the normal operating state of the vibratory polishing equipment and are only for the purpose of describing the present invention and simplifying the description. They are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0021] like Figure 1 and 2 As shown, a vibratory polishing device for gear processing of reducers includes a polishing tank 1 with a cylindrical structure, an open top, a material discharge port 102 at the bottom, and a vibratory motor 101 fixedly connected to the side wall. The polishing tank 1 is configured to accommodate abrasive. A movable mechanism 6 has a movable end for fixing a bevel gear 9, which is coaxially arranged with the polishing tank 1. An outer limiting cylinder 3 is coaxially fixedly connected to the top opening of the polishing tank 1. An inner guide cover 4 is coaxially arranged directly above the bevel gear 9. The inner guide cover and the outer limiting cylinder 3 enclose an annular material discharge channel, which is vertically aligned with the tooth portion 901 of the bevel gear 9. A screw conveyor 5 has an inlet 501 at the bottom end that communicates with the material discharge port 102, and an outlet pipe 502 at the top end, with the outlet end of the outlet pipe 502 extending directly above the material discharge channel.

[0022] The above-mentioned vibratory polishing equipment is suitable for polishing materials such as... Figure 13The bevel gear shown is polished. The polishing tank 1 contains abrasive material. The horizontal height of the top of the abrasive material is less than the horizontal height of the bottom surface of the outer limiting cylinder 3. An electric knife-type gate valve can be installed at the discharge port 102 to control the opening and closing of the discharge port 102 and the flow rate of the abrasive material, thereby indirectly controlling the amount of abrasive material inside the polishing tank 1. The screw conveyor 5 extends vertically or inclined upward. The abrasive material falling from the discharge port 102 enters the screw conveyor 5 and is lifted upward. Finally, it is transported to the discharge channel through the inclined downward discharge pipe 502, thus realizing the circulation of the abrasive material. A vertical gap needs to be maintained between the discharge pipe 502 and the top surface of the outer limiting cylinder 3 to provide space for the bevel gear 9 to enter and exit the outer limiting cylinder 3. The inner diameter of the outer limiting cylinder 3 needs to be larger than the maximum outer diameter of the bevel gear to maintain a gap between the two, prevent collision between them during polishing, and provide space for the material to fall in the discharge channel.

[0023] In use, the bevel gear 9 is fixed on the moving end of the movable mechanism 6, so that the axis of the bevel gear 9 extends vertically, and the tooth portion 901 of the bevel gear 9 faces upward. The inner guide cover 4 is also set on the moving end of the movable mechanism 6, and covers the other parts of the bevel gear 9 except for the outer peripheral tooth portion 901 from above. The vibrating motor 101 drives the polishing tank 1 and the outer limiting cylinder 3 to vibrate. Under the action of vibration, the abrasive inside the polishing tank 1 enters the interior of the screw conveyor 5 through the discharge port 102 under the action of gravity. Then, the bolt conveyor 5 lifts the abrasive and sends it into the discharge channel through the discharge pipe 502, so that a large amount of abrasive accumulates above the tooth portion 901. The outer limiting cylinder 3 drives the abrasive to vibrate. At the same time, under the action of gravity, the abrasive moves downward and cuts into the tooth groove opening of the bevel gear 9, thereby achieving effective grinding of the tooth root position. Figure 9 As shown, the tooth groove of the bevel gear 9 is inclined downward along the axis towards the edge. Therefore, under the combined action of vibration and gravity, the abrasive will slide along the tooth groove towards the outer limiting cylinder 3 and eventually slide out from the gap between the bevel gear 9 and the outer limiting cylinder 3. This increases the speed of abrasive replacement at the tooth root position, reduces the accumulation and retention of debris, obtains continuous and effective friction, improves the polishing effect at the tooth root position, and ultimately improves the processing quality of the bevel gear 9.

[0024] Further improvements include, for example Figure 8-12As shown, a cylindrical screening tank 2 is coaxially fixedly connected to the bottom of the polishing tank 1. A vertically extending support leg 203 is fixedly connected to the bottom of the screening tank 2. A shock-absorbing pad 204 is fixedly connected to the bottom end of the support leg 203. A slag discharge port 202 is provided at the bottom of the screening tank 2, and a discharge port 201 is provided on the side. A screen 8 is detachably connected inside the screening tank 2. The screen 8 divides the inner cavity of the screening tank 2 into an upper cavity and a lower cavity. The material discharge port 102 and the discharge port 201 are connected to the upper cavity, and the slag discharge port 202 is connected to the lower cavity. The discharge port 201 is set close to the screen 8. The screen 8 is inclined inside the screening tank 2, and the discharge port 201 is set close to the lowest horizontal height side of the screen 8. The horizontal height of the discharge port 201 is greater than the horizontal height of the inlet port 501. A flexible buffer tube 503 is provided between the discharge port 201 and the inlet port 501.

[0025] Specifically, the screening tank 2 is also a cylindrical structure with an open top. Flange rings are provided around the bottom edges of the polishing tank 1 and the top edges of the screening tank 2, allowing them to be fixedly connected by bolts. The bottom of both the polishing tank 1 and the screening tank 2 are conical structures. The material discharge port 102 and the slag discharge port 202 are located at the lowest point of the conical structure to facilitate the discharge of abrasive material and reduce accumulation. Four supports 203 are arranged circumferentially around the axis of the screening tank 1 to provide stable support for the vibratory polisher. The bottom shock-absorbing pads 204 are rubber pads that can isolate the transmission of equipment vibration to the ground. The buffer pipe 503 is a rubber pipe that can isolate the transmission of vibration from the screening tank 2 to the screw conveyor 5 to ensure the normal operation of the screw conveyor 5.

[0026] In the aforementioned vibratory polishing equipment, an inner flange 205 is provided circumferentially on the inner wall of the screening tank 2, and an outer frame 801 is provided circumferentially on the outer periphery of the screen 8. The outer frame 801 is fixedly connected to the flange 205 by screws, thereby enabling the screen 8 to be installed inside the screening tank 2. During operation, the polishing tank 1 drives the screening tank 2 and the screen 8 to vibrate synchronously. Under the action of vibration and gravity, the abrasive inside the polishing tank 8 falls from the discharge port 102 onto the screen 8. The screen vibrates, causing smaller metal fragments in the abrasive to fall through the screen 8 and eventually be discharged from the slag discharge port 202. The screened abrasive slides down along the screen 8 to the discharge port 201 and finally enters the screw conveyor 5 to circulate into the discharge channel. In this way, the abrasive can be screened during the abrasive circulation process, improving the quality of the abrasive and thus improving the polishing effect on the bevel gear 9.

[0027] Further improvements include, for example Figure 7 and 8As shown, at least three hook portions 301 are evenly spaced around the side of the outer limiting cylinder 3 along its axis. Each hook portion 301 has a U-shaped structure with its opening facing downwards. The hook portion 301 is inserted into the edge of the opening at the top of the polishing groove 1. A locking screw 302 extending radially along the polishing groove 1 is threaded onto the hook portion 301, with the end of the locking screw 302 abutting against the outer wall of the polishing groove 1. Specifically, the width of the opening of the hook portion 301 is greater than or equal to the thickness of the groove wall of the polishing groove 1. This allows the hook portion 301 to be hung at the opening of the polishing groove 1 from above, and then secured by the locking screw 302. This facilitates the disassembly and replacement of the outer limiting cylinder 3. Furthermore, after the locking screw 302 is tightened, the hook portion 301 fits tightly against the inner wall of the polishing groove 1, ensuring stable vibration transmission between them and guaranteeing the vibration effect of the outer limiting cylinder 3. This effectively drives the abrasive and the gear tooth portion 901 to move relative to each other, achieving the polishing effect.

[0028] Further improvements include, for example Figure 3 As shown, the active mechanism 6 includes a base 612 and a vertically arranged first cylinder 601. The bottom end of the first cylinder 601 is connected to the base 612 through a rotary reducer 602, and the top end is fixedly connected to a horizontally extending top beam 605. The end of the top beam 605 opposite to the first cylinder 601 is fixedly connected to a vertically extending guide rod 607. The guide rod 607 is coaxially arranged through the shaft hole 902 of the bevel gear 9. The bottom end of the guide rod 607 is threadedly connected to a nut 7. The inner guide cover 4 is coaxially arranged on the guide rod 607. The inner guide cover 4 and the nut 7 limit the bevel gear 9 from the top and bottom sides. A limit ring 604 is fixedly connected to the cylinder body of the first cylinder 601, and a vertically extending limit rod 603 is fixedly connected to the top beam 605. The limit ring 604 and the limit rod 603 are coaxially slidingly engaged.

[0029] Specifically, the rotary reducer 602 is driven by a motor to control the first cylinder 601 to rotate around its own axis. The limiting ring 604 and the limiting rod 603 form mutual limiting to ensure that the first cylinder 601 can achieve stable torque transmission, ultimately driving the top beam 605 to rotate horizontally. At the same time, the first cylinder 601 drives the top beam 605 to rise and fall. Through the above settings, the guide rod 607 is driven to rise and fall and rotate horizontally, thereby realizing the position change of the guide rod 607 inside and outside the polishing tank 1, which facilitates the picking and placing of the bevel gear 9 installed on the guide rod 607 and improves the ease of use of the vibratory polisher. The bottom end of the guide rod 607 has a threaded section that matches the nut 7, which facilitates the installation of the nut 7, and then the bevel gear 9 is installed on the guide rod 607 through the nut 7.

[0030] Further improvements include, for example Figure 4 and 6As shown, the inner guide cover 4 has a conical structure, with a sleeve 401 at its top that slides coaxially with the guide rod 607, and elastic rings 402 circumferentially arranged around the bottom edge. The sleeve 401 is fitted onto the guide rod 607, facilitating the installation and removal of the inner guide cover 4 on the guide rod 607. The elastic ring 402 is a rubber ring used to seal the contact point between the inner guide cover 4 and the bevel gear 9, and also to reduce mutual wear between the two. The conical structure of the inner guide cover 4 gives the top entrance of the material drop channel a wider width, facilitating the entry of abrasive and guiding the abrasive to the gear tooth 901.

[0031] Further improvements include, for example Figure 4 and 5 As shown, a radial limiting part 701 is fixedly connected to the nut 7. The radial limiting part 701 has a tapered structure and a through hole for the guide rod 607 to pass through along its axis. A through hole 610 is provided at the bottom end of the guide rod 607 along its radial direction. Specifically, the through hole 601 is used to thread a steel wire rope. After the two ends of the steel wire rope are knotted, the steel wire rope is fixedly connected to the bottom of the guide rod 607. The steel wire rope is positioned below the nut 7 to prevent the nut 7 from falling off the guide rod 607. The inner diameter of the through hole is the same as the outer diameter of the guide rod 607, which is used to achieve mutual limiting between the radial limiting part 701 and the guide rod 607, thereby improving the stability of the installation of the radial limiting part 701. After the conical radial limiting part is inserted into the shaft hole 902 of the bevel gear 9 from below, the shaft hole 902 slides along the conical surface of the radial limiting part 701, thereby achieving radial positioning of the shaft hole 902. This feature is applicable to shaft holes 902 with different diameters, improving the stability and accuracy of the installation of the bevel gear 9, and thus improving the polishing effect of the gear teeth 901.

[0032] Further improvements include, for example Figure 5 and 6 As shown, a rotating sleeve 608 is coaxially sleeved on the guide rod 607, and the inner ring of a bearing 609 is fixedly connected to the outer circumference of the rotating sleeve 608; a vertically extending second cylinder 606 is fixedly connected to the top beam 605, and the telescopic end of the second cylinder 606 is fixedly connected to the outer ring of the bearing 609; a drive assembly 611 that is connected to the rotating sleeve 608 is provided on the outer ring of the bearing 609; the bottom end of the rotating sleeve 608 is threadedly connected to the sleeve part 401.

[0033] In the aforementioned vibratory polishing equipment, the drive assembly 611 includes a gear ring circumferentially arranged on the outer periphery of the rotating sleeve 608 and a motor fixed on the outer ring of the bearing 609. The drive end of the motor is fixedly connected to a gear that meshes with the gear ring. The sleeve part 401 is threadedly connected to the rotating sleeve 608, which facilitates the disassembly and replacement of the inner guide cover 4. In use, the second cylinder 606 drives the rotating sleeve 608 to rise and fall along the guide rod 607, and the drive assembly 611 drives the rotating sleeve 608 to rotate, thus driving the inner guide cover 4 to rise, fall, and rotate.

[0034] When installing the bevel gear 9, first insert the guide rod 607 into the shaft hole 902 from above, then tighten the nut 7. The second cylinder 606 drives the inner guide cover 4 to descend and press against the top surface of the bevel gear 9. The bevel gear 9 is clamped from the top and bottom by the nut 7 and the inner guide cover 4, thus completing the installation and fixation of the bevel gear 9 on the guide rod 607. After fixing, the elastic ring 604 is used to increase the friction between the inner guide cover 4 and the bevel gear 9, so that when the inner guide 4 rotates, it can drive the bevel gear 9 to rotate synchronously. By driving the bevel gear 9 and the inner guide cover 4 to rotate inside the outer limiting cylinder 3, the abrasive entering the material drop channel is evenly distributed in the circumference, thereby improving the uniformity of grinding the gear teeth 901. Furthermore, the rotation of the inner guide cover 4 can cause the abrasive to be thrown off by centrifugal force, reducing the accumulation of abrasive on the inner guide cover 4.

[0035] After the gear teeth 901 are polished, the second cylinder 606 drives the inner guide cover 4 to rise, releasing the clamping and fixing of the bevel gear 9. At the same time, the first cylinder 601 descends, causing the bevel gear 9 to sink into the abrasive stored inside the polishing tank 1. At this time, the abrasive covers the outer surface of the bevel gear 9, and the vibration causes the abrasive to polish the entire outer surface of the bevel gear 9. Through the overall polishing of the bevel gear 9 and the precise polishing of the gear teeth 901, the polishing quality of the bevel gear 9 is finally improved. After the polishing is complete, the bevel gear 9 is moved to the outside of the polishing tank 1 for easy replacement with a new bevel gear 9 for processing.

[0036] Further improvements include, for example Figure 4 and 7 As shown, the inner diameter of the outer limiting cylinder 3 gradually increases downward along its own axial direction to form an inner conical surface 304, and a chamfered portion 303 is provided on the inner circumferential side of the top opening of the outer limiting cylinder 3. The chamfered portion 303 is used to widen the width of the material feeding channel entrance, so that the abrasive inside the discharge pipe 502 can enter the material feeding channel. It is also used to guide the abrasive to the gear tooth 901, so as to achieve effective grinding of the gear tooth 901. The inner diameter of the inner conical surface 304 gradually increases downward. Therefore, by controlling the height of the bevel gear 9 by the first cylinder 601, the gap between the bevel gear 9 and the outer limiting cylinder 3 can be adjusted. This not only prevents the gap between the two from jamming, but also adapts to abrasives of different particle sizes.

[0037] In such Figure 4 In the connection structure between the edge of the bevel gear 9 and the inner wall of the inner guide cover 4, the horizontal height of the tooth tip of the gear tooth 901 is greater than the horizontal height of the bottom of the tooth groove. Combined with the design of the inner conical surface 304, the gap between the tooth tip and the inner conical surface 304 is smaller than the gap between the bottom of the tooth groove and the inner conical surface 304. Therefore, compared with the tooth tip, the abrasive inside the tooth groove, that is, at the tooth root, is more easily discharged from the wider gap, so that the abrasive at the tooth root has a faster flow renewal speed, thereby improving the grinding effect at the tooth root.

[0038] It is understood that the present invention has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. Furthermore, under the teachings of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of the present invention.

Claims

1. A vibratory polishing device for machining reducer gears, characterized in that, include: The polishing tank has a cylindrical structure with an open top and a material inlet at the bottom. A vibrating motor is fixedly connected to the side wall. The polishing tank is configured to hold abrasive. The movable mechanism has a movable end for fixing a bevel gear, the bevel gear being coaxially arranged with the polishing groove; An outer limiting cylinder is coaxially and fixedly connected inside the top opening of the polishing tank; An inner guide cover is coaxially disposed directly above the bevel gear. The inner guide cover and the outer limiting cylinder together form an annular material discharge channel, which is vertically disposed directly opposite the tooth portion of the bevel gear. The screw conveyor has an inlet at the bottom that communicates with the discharge port, and an outlet pipe at the top, with the outlet end of the outlet pipe extending directly above the discharge channel.

2. The vibration polishing equipment for gear processing of reducers according to claim 1, characterized in that, A cylindrical screening tank is coaxially fixedly connected to the bottom of the polishing tank. A vertically extending support leg is fixedly connected to the bottom of the screening tank. A shock-absorbing pad is fixedly connected to the bottom end of the support leg. A slag discharge port is provided at the bottom of the screening tank, and a material outlet is provided on the side. A screen is detachably connected inside the screening tank. The screen divides the inner cavity of the screening tank into an upper cavity and a lower cavity. The material discharge port and the material outlet are connected to the upper cavity, the slag discharge port is connected to the lower cavity, and the material outlet is located adjacent to the screen.

3. The vibration polishing equipment for gear processing of reducers according to claim 2, characterized in that, The screen is inclinedly arranged in the screening trough, and the discharge port is located adjacent to the lowest horizontal height side of the screen. The horizontal height of the discharge port is greater than that of the inlet port, and a flexible buffer tube is provided between the discharge port and the inlet port.

4. The vibration polishing equipment for gear processing of reducers according to claim 1, characterized in that, The outer limiting cylinder has at least three hooks evenly spaced around its axis on its side. Each hook has a U-shaped structure with its opening facing downwards. The hooks are inserted into the edge of the opening at the top of the polishing groove. Each hook is threaded with a locking screw that extends radially along the polishing groove. The end of the locking screw abuts against the outer wall of the polishing groove.

5. The vibration polishing equipment for gear processing of reducers according to claim 1, characterized in that, The movable mechanism includes a base and a vertically arranged first cylinder. The bottom end of the first cylinder is connected to the base via a rotary reducer, and a horizontally extending crossbeam is fixedly connected to the top end. A vertically extending guide rod is fixedly connected to the end of the crossbeam opposite to the first cylinder. The guide rod is coaxially arranged through the shaft hole of the bevel gear, and a nut is threaded to the bottom end of the guide rod. An inner guide cover is coaxially arranged on the guide rod. The bevel gear is limited from the top and bottom sides by the inner guide cover and the nut.

6. The vibration polishing equipment for gear processing of reducers according to claim 5, characterized in that, The inner guide cover has a conical structure, with a sleeve at the top that slides coaxially with the guide rod, and elastic rings circumferentially arranged around the bottom edge.

7. The vibration polishing equipment for gear processing of reducers according to claim 5, characterized in that, A radial limiting part is fixedly connected to the nut. The radial limiting part has a tapered structure and a through hole for passing through the guide rod is opened along its axis. The bottom end of the guide rod has a through hole along its radial direction.

8. The vibration polishing equipment for gear processing of reducers according to claim 6, characterized in that, A rotating sleeve is coaxially sleeved on the guide rod, and the inner ring of a bearing is fixedly connected to the outer circumference of the rotating sleeve. A vertically extending second cylinder is fixedly connected to the crossbeam. The telescopic end of the second cylinder is fixedly connected to the outer ring of the bearing. A drive assembly that is connected to the rotating sleeve is provided on the outer ring of the bearing. The bottom end of the rotating sleeve is threadedly connected to the sleeve portion.

9. The vibration polishing equipment for gear machining of reducers according to any one of claims 1-8, characterized in that, The inner diameter of the outer limiting cylinder gradually increases downward along its own axis to form an inner conical surface, and a chamfer is provided on the inner circumferential side of the top opening of the outer limiting cylinder.

10. The vibration polishing equipment for gear processing of reducers according to claim 5, characterized in that, A limiting ring is fixedly connected to the cylinder body of the first cylinder, and a vertically extending limiting rod is fixedly connected to the crossbeam. The limiting ring and the limiting rod are coaxially slidingly engaged.

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