Electrically-driven matching type gear abrasive flow polishing device

Abstract

The invention relates to the technical field of gear polishing, in particular to an electrically-driven matching type gear abrasive flow polishing device which comprises a polishing table, a positioning clamp used for positioning a gear is arranged on the polishing table and comprises an upper plate, an upper ring, a lantern ring, a lower plate and a lower ring, and the upper plate and the upper ring are used for clamping and positioning the upper half portion of the gear. The lantern ring is used for clamping and positioning the tooth surface part in the middle of the gear; the lower plate and the lower ring are used for clamping and positioning the lower half part of the gear; a feeding channel allowing abrasive particles to flow into the gear to polish and grind the tooth surface is formed in the upper plate in a penetrating mode, a discharging channel allowing the abrasive particles to flow out of the gear is formed in the lower plate in a penetrating mode, the feeding channel is communicated with the discharging channel, and a flow limiting assembly is arranged on the inner wall of the lantern ring along the circumferential side of the lantern ring and used for limiting the flowing path of the abrasive particles. According to the gear clamping device, stable clamping of a gear can be achieved during abrasive flow machining, the machining effect of the gear is improved, and then the overall machining quality of the gear can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of gear polishing, and in particular to an electrically driven matching gear abrasive flow polishing device. Background Art

[0002] Abrasive flow machining refers to a special finishing process that uses viscoelastic abrasive media to flow over the surface of the workpiece, causing the hard abrasive particles inside to collide with the workpiece surface and remove material, thereby deburring, chamfering and improving the surface quality of the workpiece.

[0003] In the related technology, gear 001 is one of the important structures in mechanical parts and is widely used in various fields. However, the surface shape of gear 001 is complex, and the current process also puts forward higher requirements on the surface accuracy of gear 001. Traditional mechanical polishing has been difficult to meet the overall accuracy requirements, and the polishing is difficult. The use of abrasive flow machining can effectively optimize the surface accuracy of gear 001 and meet the requirements of precision machining. At the same time, due to the complex shape of gear 001, how to effectively ensure the stability of gear 001 during the polishing process is also an important factor affecting the polishing effect of gear 001. Summary of the invention

[0004] The present application provides an electrically driven matching gear abrasive flow polishing device, the purpose of which is to achieve stable clamping of the gear during abrasive flow processing and improve its processing effect, thereby facilitating improving the overall processing quality of the gear.

[0005] The present application provides an electrically driven matching gear abrasive flow polishing device, which adopts the following technical solution: An electrically driven matching gear abrasive flow polishing device comprises a polishing table, on which a positioning fixture for positioning the gear is provided, the positioning fixture comprising an upper plate, an upper ring, a sleeve ring, a lower plate and a lower ring, the upper plate and the upper ring are used to clamp and position the upper half of the gear, the sleeve ring is used to clamp and position the tooth surface in the middle of the gear, and the lower plate and the lower ring are used to clamp and position the lower half of the gear; the upper plate is provided with a feed channel through which abrasive particles flow into the interior of the gear to polish and grind the tooth surface, the lower plate is provided with a discharge channel through which abrasive particles flow out of the interior of the gear, the feed channel and the discharge channel are kept in communication, a flow limiting component is provided on the inner wall of the sleeve ring along its circumference, and the flow limiting component is used to limit the flow path of the abrasive particles.

[0006] By adopting the above technical solution, the upper plate, upper ring, sleeve ring, lower plate and lower ring divide the positioning fixture into multiple independent modules, which makes it easy to accurately control the weight of each module and facilitates manual operation. At the same time, the modules are easy to assemble and can effectively ensure the assembly accuracy, which is conducive to further ensuring the quality of gear polishing. The flow channel gap between the tooth surface of the gear and the inner wall of the sleeve ring can be effectively ensured to remain consistent over the entire surface scale of the gear through the current limiting component, which allows the gear to maintain the consistency of the flow channel width and cross-sectional area as much as possible during the polishing process, which is conducive to ensuring the consistency of the gear surface processing effect and further improving the overall polishing quality of the gear.

[0007] Preferably, the flow limiting assembly includes a plurality of flow limiting plates, which are integrally formed on the inner wall of the ring along the vertical direction, and the plurality of flow limiting plates are evenly distributed along the circumference of the ring, and a processing channel for the flow of abrasive particles is formed between two adjacent flow limiting plates, and the feed channel, the processing channel and the discharge channel remain connected.

[0008] By adopting the above technical solution, during processing, the flow limiting plate is inserted into the gap between two adjacent teeth of the gear, and the flow limiting plates and the teeth of the gear are mutually engaged to achieve the effect of stably clamping and positioning the gear as a whole. At the same time, while these flow limiting plates effectively ensure the stable clamping of the gear, the width of the processing channel on the peripheral side of the gear remains consistent, which enables the gear to effectively maintain the consistency of the flow channel width and cross-sectional area during the polishing process, which is conducive to ensuring the consistency of the gear surface processing effect, effectively ensuring the uniformity of the processing of each tooth surface of the gear, making the overall processing accuracy of the gear higher, and further improving the quality of the overall polishing of the gear.

[0009] Preferably, a cooling channel is provided inside the limiting plate along its length direction, and the cooling channel is used to cool the limiting plate.

[0010] By adopting the above technical solution, since the abrasive particles will continuously rub against the side wall of the limiting plate while washing the gear tooth surface in the processing channel, it is easy to cause local heating of the side wall of the limiting plate. When the limiting plate is locally heated, it will affect the effect of the abrasive particles grinding the gear tooth surface. Using the cooling channel to cool the limiting plate can effectively avoid the abrasive particles from causing local heating of the limiting plate in the process of washing the gear tooth surface in the processing channel, which will affect the effect of the abrasive particles on the polishing of the gear tooth surface.

[0011] Specifically, the collar is located at the position of the corresponding flow limiting plate and has openings at the upper and lower ends. The outside of the collar is connected to a corresponding water pump, which pumps cooling water into the cooling channel of the flow limiting plate through the opening on the collar, thereby utilizing the cooling channel to cool the flow limiting plate.

[0012] Preferably, a movable groove is opened along the length direction of the limiting plate on one side close to the gear teeth, a guide plate is added in the movable groove, the guide plate is rotatably installed in the movable groove, and the guide plate is used to guide the abrasive particles to the gear tooth surface.

[0013] By adopting the above technical solution, after the cooling water enters the cooling channel, the guide plate is driven to rotate in the movable groove. The rotated guide plate can guide the abrasive particles flowing into the processing channel to the tooth surface of the gear, thereby effectively improving the efficiency of polishing the gear tooth surface with the abrasive particles.

[0014] Preferably, the guide plate includes a first plate body and a second plate body, the first plate body is located in the movable groove, the second plate body is located in the cooling channel, a rotating shaft is installed at the bottom of the movable groove along its width direction, both ends of the rotating shaft respectively extend through the movable groove, the first plate body and the rotating shaft are integrally connected, the left and right ends of the rotating shaft are respectively integrally connected with connecting plates, and the second plate body is integrally formed at one end of the two connecting plates away from the first plate body.

[0015] By adopting the above technical solution, specifically, the cooling water is pumped into the cooling channel from bottom to top. After being pumped into the cooling channel, the cooling water will impact the second plate upward, thereby driving the second plate to rotate clockwise. While the second plate rotates clockwise, the shaft is driven to rotate through the connecting plate, and the first plate is driven to rotate clockwise through the shaft. The initial state of the first plate and the second plate is: first, the angle between the first plate and the second plate is about 120°. In the initial state, the second plate is tilted downward and the first plate is tilted upward. When the cooling water impacts the second plate from bottom to top, the second plate rotates upward and the first plate rotates downward, which makes the first plates between the two adjacent limiting plates gather in a direction close to each other, so that when the abrasive particles enter the processing channel and pass through the two adjacent first plates, the two adjacent first plates will gather the abrasive particles in a direction close to the gear tooth surface, so that the abrasive particles can polish and grind the gear tooth surface more efficiently, further improving the quality of the overall processing of the gear.

[0016] Preferably, a seal is installed between the left and right ends of the rotating shaft extending out of the movable groove and the outer wall of the movable groove.

[0017] By adopting the above technical solution, the two ends of the rotating shaft are sealed by the sealing member, thereby effectively ensuring the sealing between the two ends of the movable groove and the movable groove during the rotation of the rotating shaft.

[0018] Preferably, the left and right ends of the rotating shaft and the two connecting plates are connected via a torsion spring.

[0019] By adopting the above technical solution, when the second plate loses the driving force of the cooling water, it can be smoothly reset under the drive of the torsion spring, thereby making the gear polishing and grinding process more convenient and efficient.

[0020] Preferably, a clamping block is integrally formed at the end of the first plate body in a direction close to the second plate body, and the clamping block is clamped and matched with the step of the movable groove.

[0021] By adopting the above technical solution, when the cooling water drives the second plate body to drive the first plate body to rotate, when the first plate body completes rotation, the block is connected to the step at the bottom of the movable groove, and when the abrasive particles impact the first plate body downward, the step of the movable groove provides stable support for the block, and the stability of the first plate body can be effectively increased through the block, so that when the abrasive particles impact the first plate body downward, the first plate body is not easy to shake, and the abrasive particles can be accurately pushed to the tooth surface of the gear.

[0022] Preferably, a positioning box is fastened on the polishing table, a feed port is provided at the top of the positioning box, a discharge port is provided at the bottom of the positioning box, two gears to be processed are installed in the positioning box, both gears are vertically arranged and meshed with each other, and the meshing portion of the two gears is directly below the feed port.

[0023] By adopting the above technical solution, during processing, abrasive particles are injected into the positioning box from the feed port at the top of the positioning box, and the downward impact of the abrasive particles drives the two gears to rotate. During the meshing and rotating process of the two gears, the abrasive particles penetrate into the tooth surfaces of the gears to polish and grind the tooth surfaces. This setting method can polish the two gears at the same time, and the two gears can clamp and position each other during the processing process, which can effectively ensure the stability of the processing of the two gears while improving the processing efficiency.

[0024] Preferably, an auxiliary motor is installed at the bottom of the gear, and the base of the auxiliary motor is fastened to the positioning box by fastening bolts.

[0025] By adopting the above technical solution, since the flow rate of the abrasive particles is prone to fluctuations, and the abrasive particles may not be able to effectively mesh and rotate between the two gears due to the small impact force when driving the two gears to rotate, an auxiliary motor is used to assist the rotation of the gears, so that the meshing rotation between the two gears can better adapt to the flow rate of the abrasive particles, which is beneficial to ensure that the abrasive particles can polish and grind the tooth surfaces of the two gears more stably, which is beneficial to further improve the processing quality of the two gears.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. The upper plate, upper ring, sleeve ring, lower plate and lower ring divide the positioning fixture into multiple independent modules, which makes it easy to accurately control the weight of each module and facilitates manual operation. At the same time, the modules are easy to assemble and can effectively ensure the assembly accuracy, which is conducive to further ensuring the quality of gear polishing. The flow channel gap between the tooth surface of the gear and the inner wall of the sleeve ring can be effectively ensured to remain consistent over the entire surface scale of the gear through the current limiting component, which allows the gear to maintain the consistency of the flow channel width and cross-sectional area as much as possible during the polishing process, which is conducive to ensuring the consistency of the gear surface processing effect and further improving the overall polishing quality of the gear; 2. As the abrasive particles rub against the side wall of the limiting plate while washing the gear tooth surface in the processing channel, it is easy to cause local heating of the side wall of the limiting plate. When the limiting plate is locally heated, it will affect the effect of the abrasive particles grinding the gear tooth surface. Using the cooling channel to cool the limiting plate can effectively avoid the abrasive particles from causing local heating of the limiting plate when washing the gear tooth surface in the processing channel, which will affect the effect of the abrasive particles on the polishing of the gear tooth surface; 3. The cooling water is pumped into the cooling channel from bottom to top. After being pumped into the cooling channel, the cooling water will impact the second plate upward, thereby driving the second plate to rotate clockwise. While the second plate rotates clockwise, it drives the shaft to rotate through the connecting plate, and drives the first plate to rotate clockwise through the shaft. The initial state of the first plate and the second plate is: first, the angle between the first plate and the second plate is about 120°. In the initial state, the second plate is tilted downward and the first plate is tilted upward. When the cooling water impacts the second plate from bottom to top, the second plate rotates upward and the first plate rotates downward, which makes the first plates between the two adjacent limiting plates gather in a direction close to each other, so that when the abrasive particles enter the processing channel and pass through the two adjacent first plates, the two adjacent first plates will gather the abrasive particles in a direction close to the gear tooth surface, so that the abrasive particles can polish and grind the gear tooth surface more efficiently, further improving the overall processing quality of the gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of the gear in the background technology specifically shown in the embodiment of the present application; Figure 2 It is a schematic diagram of the overall structure of the embodiment of the present application; Figure 3 It is a structural schematic diagram showing the position relationship of the discharge channel in detail in the embodiment of the present application; Figure 4 It is a structural schematic diagram of an embodiment of the present application specifically showing the positional relationship between the flow limiting plate, the processing channel and the cooling channel; Figure 5 yes Figure 4The enlarged schematic diagram of point A in the middle; Figure 6 is a structural schematic diagram of an embodiment of the present application specifically showing the positional relationship between the first plate body, the rotating shaft, the connecting plate and the sealing member; Figure 7 It is a structural schematic diagram of the embodiment of the present application that specifically shows the position relationship between the positioning box, the feed port, the discharge port and the auxiliary motor.

[0028] Figure numerals: 1. polishing table; 2. positioning fixture; 21. upper plate; 22. upper ring; 23. sleeve ring; 24. lower ring; 25. lower plate; 3. feed channel; 4. discharge channel; 5. current limiting assembly; 51. current limiting plate; 6. processing channel; 7. cooling channel; 8. movable groove; 9. guide plate; 91. first plate body; 92. second plate body; 10. rotating shaft; 11. connecting plate; 12. sealing member; 13. block; 14. positioning box; 15. feed port; 16. discharge port; 17. auxiliary motor. DETAILED DESCRIPTION

[0029] The following is combined with Figure 2 -Attached Figure 7 , further details of this application are given.

[0030] Embodiment 1: The present application discloses an electric drive matching gear abrasive flow polishing device, referring to Figure 2 , including a polishing table 1, on which a positioning fixture 2 for positioning the gear is provided. Specifically, when the gear is polished and ground, the gear to be processed is positioned by the positioning fixture 2, and the positioning fixture 2 is used to effectively ensure the stability of the gear to be processed during the processing.

[0031] The positioning fixture 2 includes an upper plate 21, an upper ring 22, a sleeve ring 23, a lower ring 24 and a lower plate 25. The upper plate 21 and the upper ring 22 are used to clamp and position the upper half of the gear, the sleeve ring 23 is used to clamp and position the tooth surface in the middle of the gear, and the lower plate 25 and the lower ring 24 are used to clamp and position the lower half of the gear.

[0032] Specifically, when clamping the gear, first, the collar 23 is sleeved on the peripheral side of the tooth surface in the middle of the gear. After the collar 23 is sleeved, the upper ring 22 is sleeved on the top of the gear. The bottom of the upper plate 21 is integrally formed with a corresponding plug. After the upper plate 21 is installed, the plug of the upper plate 21 is inserted into the upper half of the gear, and then the upper half of the gear is positioned by the upper plate 21 and the upper ring 22. After the upper half of the gear is positioned, the lower plate 25 and the lower ring 24 are sleeved on the lower half of the gear.

[0033] The upper plate 21, the upper ring 22, the sleeve ring 23, the lower plate 25 and the lower ring 24 divide the positioning fixture 2 into multiple independent modules, which makes it easy to accurately control the weight of each module and facilitates manual operation. At the same time, the modules are easy to assemble and can effectively ensure the assembly accuracy, which is conducive to further ensuring the quality of gear polishing.

[0034] Reference Figure 2 , Figure 3 as well as Figure 4 The upper plate 21 is penetrated with an inlet channel 3 for abrasive particles to flow into the gear to polish the tooth surface, and the lower plate 25 is penetrated with an outlet channel 4 for abrasive particles to flow out of the gear. The inlet channel 3 and the outlet channel 4 are kept in communication. During specific processing, the abrasive particles flow from the inlet channel to the tooth surface of the gear for polishing and grinding, and then flow out from the outlet channel 4. At the same time, a limiting flow component 5 is provided on the inner wall of the collar 23 along its circumference. The overall shape of the limiting flow component 5 is similar to that of the inner gear ring. The limiting flow component 5 is used to limit the flow path of the abrasive particles. The limiting flow component 5 can effectively ensure that the flow channel gap between the tooth surface of the gear and the inner wall of the collar 23 is consistent in the entire surface dimension of the gear. This allows the gear to maintain the consistency of the flow channel width and cross-sectional area as much as possible during the polishing process, which is conducive to ensuring the consistency of the gear surface processing effect and further improving the overall polishing quality of the gear.

[0035] Specifically, refer to Figure 2 , Figure 3 as well as Figure 4 The flow limiting assembly 5 includes a plurality of flow limiting plates 51, which are integrally formed on the inner wall of the collar 23 along the vertical direction. The flow limiting plates 51 are evenly spaced along the circumference of the collar 23, and a processing channel 6 for the flow of abrasive particles is formed between two adjacent flow limiting plates 51. The feed channel 3, the processing channel 6 and the discharge channel 4 are kept in communication, and the tooth surface of the gear to be processed is located in the processing channel 6.

[0036] Specifically, during processing, the flow limiting plate 51 is inserted into the gap between two adjacent teeth of the gear, and the flow limiting plates 51 and the teeth of the gear are mutually engaged to achieve the effect of stably clamping and positioning the entire gear. At the same time, while these flow limiting plates 51 effectively ensure the stable clamping of the gear, the width of the processing channel 6 on the peripheral side of the gear remains consistent, which enables the gear to effectively maintain the consistency of the flow channel width and cross-sectional area during the polishing process, which is conducive to ensuring the consistency of the gear surface processing effect, effectively ensuring the uniformity of the processing of each tooth surface of the gear, making the overall processing accuracy of the gear higher, and further improving the quality of the overall polishing of the gear.

[0037] Further, refer to Figure 4, a cooling channel 7 is provided inside the limiting plate 51 along its length, and the cooling channel 7 is used to cool the limiting plate 51. Since the abrasive particles will continuously rub against the side wall of the limiting plate 51 while washing the gear tooth surface in the processing channel 6, it is easy to cause local heating of the side wall of the limiting plate 51. When the limiting plate 51 is locally heated, it will affect the effect of the abrasive particles on the grinding of the gear tooth surface. Using the cooling channel 7 to cool the limiting plate 51 can effectively avoid the local heating of the limiting plate 51 caused by the abrasive particles washing the gear tooth surface in the processing channel 6, which will affect the effect of the abrasive particles on the polishing of the gear tooth surface.

[0038] Specifically, the collar 23 is located at the position of the corresponding flow limiting plate 51 and has openings at the upper and lower ends. The outside of the collar 23 is connected to a corresponding water pump, and the water pump pumps cooling water into the cooling channel 7 of the flow limiting plate 51 through the opening on the collar 23, thereby utilizing the cooling channel 7 to cool the flow limiting plate 51.

[0039] Further, refer to Figure 4 and Figure 5 A movable groove 8 is provided on one side of the flow limiting plate 51 close to the gear teeth along its length direction, and a guide plate 9 is added in the movable groove 8. The guide plate 9 is rotatably installed in the movable groove 8. After the cooling water enters the cooling channel 7, the guide plate 9 is driven to rotate in the movable groove 8. The rotating guide plate 9 can guide the abrasive particles flowing into the processing channel 6 to the gear tooth surface, thereby effectively improving the efficiency of the abrasive particles polishing the gear tooth surface.

[0040] Specifically, refer to Figure 4 , Figure 5 as well as Figure 6 The guide plate 9 includes a first plate body 91 and a second plate body 92. The first plate body 91 is located in the movable groove 8, and the second plate body 92 is located in the cooling channel 7. A rotating shaft 10 is installed at the bottom of the movable groove 8 along its width direction. Both ends of the rotating shaft 10 extend out of the movable groove 8, and the first plate body 91 and the rotating shaft 10 are connected as one body. The left and right ends of the rotating shaft 10 are respectively connected as one body with a connecting plate 11, and the second plate body 92 is integrally formed at one end of the two connecting plates 11 away from the first plate body 91.

[0041] Specifically, the cooling water is pumped into the cooling channel 7 from bottom to top. After being pumped into the cooling channel 7, the cooling water will impact the second plate 92 upward, thereby driving the second plate 92 to rotate clockwise. While the second plate 92 rotates clockwise, it drives the shaft 10 to rotate through the connecting plate 11, and drives the first plate 91 to rotate clockwise through the shaft 10. The initial state of the first plate 91 and the second plate 92 is: first, the angle between the first plate 91 and the second plate 92 is about 120°. In the initial state, the second plate 92 is tilted downward, and the first plate 91 is tilted upward. When the cooling water hits the second plate body 92 from bottom to top, the second plate body 92 rotates upward and the first plate body 91 rotates downward, which makes the first plate body 91 between the two adjacent limiting plates 51 gather in the direction of approaching each other, so that when the abrasive particles enter the processing channel 6 and pass through the two adjacent first plate bodies 91, the two adjacent first plate bodies 91 will gather the abrasive particles in the direction close to the gear tooth surface, so that the abrasive particles can polish the gear tooth surface more efficiently, further improving the overall processing quality of the gear.

[0042] Further, refer to Figure 5 and Figure 6 A seal 12 is installed between the left and right ends of the rotating shaft 10 extending out of the movable groove 8 and the outer wall of the movable groove 8. The seal 12 is used to seal the two ends of the rotating shaft 10, thereby effectively ensuring the sealing between the two ends of the rotating shaft 10 extending out of the movable groove 8 and the movable groove 8 during the rotation process.

[0043] At the same time, the left and right ends of the rotating shaft 10 and the two connecting plates 11 are connected by torsion springs, which makes it possible for the second plate 92 to be smoothly reset under the drive of the torsion springs when it loses the driving force of the cooling water, thereby making the gear polishing and grinding process more convenient and efficient.

[0044] Further, refer to Figure 5 and Figure 6 The end of the first plate 91 is integrally formed with a block 13 in the direction close to the second plate 92, and the block 13 is in a "Z" shape. When the cooling water drives the second plate 92 to drive the first plate 91 to rotate, when the first plate 91 rotates, the block 13 is connected to the step at the bottom of the movable groove 8. When the abrasive particles impact the first plate 91 downward, the step of the movable groove 8 provides stable support for the block 13, and then the block 13 can effectively increase the stability of the first plate 91, so that when the abrasive particles impact the first plate 91 downward, the first plate 91 is not easy to shake, and the abrasive particles can be accurately pushed to the tooth surface of the gear.

[0045] The implementation principle of an electric drive matching gear abrasive flow polishing device in the embodiment of the present application is: Specifically, when clamping the gear, first, the collar 23 is sleeved on the peripheral side of the tooth surface in the middle of the gear. After the collar 23 is sleeved, the upper ring 22 is sleeved on the top of the gear. The bottom of the upper plate 21 is integrally formed with a corresponding plug. After the upper plate 21 is installed, the plug of the upper plate 21 is inserted into the upper half of the gear, and then the upper half of the gear is positioned by the upper plate 21 and the upper ring 22. After the upper half of the gear is positioned, the lower plate 25 and the lower ring 24 are sleeved on the lower half of the gear.

[0046] The upper plate 21, the upper ring 22, the sleeve ring 23, the lower plate 25 and the lower ring 24 divide the positioning fixture 2 into multiple independent modules, which makes it easy to accurately control the weight of each module and facilitates manual operation. At the same time, the modules are easy to assemble and can effectively ensure the assembly accuracy, which is conducive to further ensuring the quality of gear polishing.

[0047] Specifically, during processing, the flow limiting plate 51 is inserted into the gap between two adjacent teeth of the gear, and the flow limiting plates 51 and the teeth of the gear are mutually engaged to achieve the effect of stably clamping and positioning the entire gear. At the same time, while these flow limiting plates 51 effectively ensure the stable clamping of the gear, the width of the processing channel 6 on the peripheral side of the gear remains consistent, which enables the gear to effectively maintain the consistency of the flow channel width and cross-sectional area during the polishing process, which is conducive to ensuring the consistency of the gear surface processing effect, effectively ensuring the uniformity of the processing of each tooth surface of the gear, making the overall processing accuracy of the gear higher, and further improving the quality of the overall polishing of the gear.

[0048] Since the abrasive particles will continuously rub against the side wall of the flow limiting plate 51 while washing the gear tooth surface in the processing channel 6, it is easy to cause local heating of the side wall of the flow limiting plate 51. When the flow limiting plate 51 is locally heated, the effect of the abrasive particles grinding the gear tooth surface will be affected. Using the cooling channel 7 to cool the flow limiting plate 51 can effectively prevent the abrasive particles from causing local heating of the flow limiting plate 51 in the process of washing the gear tooth surface in the processing channel 6, which will affect the effect of the abrasive particles polishing the gear tooth surface.

[0049] Specifically, the collar 23 is located at the position of the corresponding flow limiting plate 51 and has openings at the upper and lower ends. The outside of the collar 23 is connected to a corresponding water pump, and the water pump pumps cooling water into the cooling channel 7 of the flow limiting plate 51 through the opening on the collar 23, thereby utilizing the cooling channel 7 to cool the flow limiting plate 51.

[0050] Embodiment 2: The difference between the present embodiment and embodiment 1 is that Reference Figure 2 and Figure 7A positioning box 14 is fastened vertically on the polishing table 1 by fastening bolts, a feed inlet 15 is provided at the top of the positioning box 14, and a discharge outlet 16 is provided at the bottom of the positioning box 14. Two gears to be processed are installed in the positioning box 14, both gears are vertically arranged, and the two gears are meshed and connected, and the meshing part of the two gears is directly below the feed inlet 15.

[0051] Specifically, during processing, abrasive particles are injected into the positioning box 14 from the feed port 15 at the top of the positioning box 14. The downward force of the abrasive particles drives the two gears to rotate. During the meshing and rotating process of the two gears, the abrasive particles penetrate into the tooth surfaces of the gears to polish and grind the tooth surfaces. This setting method can polish the two gears at the same time, and the two gears can clamp and position each other during the processing, which can effectively ensure the stability of the processing of the two gears while improving the processing efficiency.

[0052] The gears in the embodiments of the present application are ordinary gears with simple structures.

[0053] Further, refer to Figure 7 An auxiliary motor 17 is installed at the bottom of one of the gears, and the base of the auxiliary motor 17 is fastened to the positioning box 14 by fastening bolts. Since the flow rate of the abrasive particles is prone to fluctuations, and the abrasive particles may not be able to effectively mesh and rotate between the two gears due to the small impact force when driving the two gears to rotate, the auxiliary motor 17 is used to assist the rotation of the gears, so that the meshing rotation between the two gears can better adapt to the flow rate of the abrasive particles, which is conducive to ensuring that the abrasive particles can polish and grind the tooth surfaces of the two gears more stably, which is conducive to further improving the processing quality of the two gears.

[0054] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An electrically driven matching gear abrasive flow polishing device, characterized in that: The invention comprises a polishing table (1), wherein the polishing table (1) is provided with a positioning fixture (2) for positioning a gear, wherein the positioning fixture (2) comprises an upper plate (21), an upper ring (22), a sleeve ring (23), a lower plate (25) and a lower ring (24), wherein the upper plate (21) and the upper ring (22) are used to clamp and position the upper half of the gear, the sleeve ring (23) is used to clamp and position the tooth surface in the middle of the gear, and the lower plate (25) and the lower ring (24) are used to clamp and position the tooth surface in the middle of the gear. ) is used to clamp and position the lower half of the gear; the upper plate (21) is penetrated by a feed channel (3) for abrasive particles to flow into the gear to polish the tooth surface, and the lower plate (25) is penetrated by a discharge channel (4) for abrasive particles to flow out of the gear. The feed channel (3) and the discharge channel (4) are kept in communication. A flow limiting component (5) is provided on the inner wall of the ring (23) along its circumference, and the flow limiting component (5) is used to limit the flow path of the abrasive particles.

2. The electrically driven matching gear abrasive flow polishing device according to claim 1, characterized in that: The flow limiting assembly (5) comprises a plurality of flow limiting plates (51), the flow limiting plates (51) being integrally formed on the inner wall of the collar (23) in the vertical direction, the plurality of flow limiting plates (51) being evenly distributed along the circumference of the collar (23), a processing channel (6) for abrasive particles to flow being formed between two adjacent flow limiting plates (51), and the feed channel (3), the processing channel (6) and the discharge channel (4) being kept in communication.

3. The electrically driven matching gear abrasive flow polishing device according to claim 2, characterized in that: A cooling channel (7) is provided inside the flow limiting plate (51) along its length direction, and the cooling channel (7) is used to cool the flow limiting plate (51).

4. The electrically driven matching gear abrasive flow polishing device according to claim 3, characterized in that: A movable groove (8) is provided on one side of the flow limiting plate (51) close to the gear teeth along its length direction, a guide plate (9) is provided in the movable groove (8), the guide plate (9) is rotatably installed in the movable groove (8), and the guide plate (9) is used to guide abrasive particles to the gear tooth surface.

5. The electrically driven matching gear abrasive flow polishing device according to claim 4, characterized in that: The guide plate (9) comprises a first plate body (91) and a second plate body (92), wherein the first plate body (91) is located in the movable groove (8), and the second plate body (92) is located in the cooling channel (7); a rotating shaft (10) is installed at the bottom of the movable groove (8) along its width direction, and both ends of the rotating shaft (10) respectively extend through the movable groove (8) to the outside; the first plate body (91) and the rotating shaft (10) are integrally connected, and the left and right ends of the rotating shaft (10) are respectively integrally connected with a connecting plate (11), and the second plate body (92) is integrally formed at one end of the two connecting plates (11) away from the first plate body (91).

6. The electrically driven matching gear abrasive flow polishing device according to claim 5, characterized in that: A sealing member (12) is installed between the left and right ends of the rotating shaft (10) extending out of the movable groove (8) and the outer wall of the movable groove (8).

7. The electrically driven matching gear abrasive flow polishing device according to claim 6, characterized in that: The left and right ends of the rotating shaft (10) and the two connecting plates (11) are connected via torsion springs.

8. The electrically driven matching gear abrasive flow polishing device according to claim 7, characterized in that: A clamping block (13) is integrally formed at the end of the first plate body (91) in a direction close to the second plate body (92), and the clamping block (13) is clamped and matched with the step of the movable groove (8).

9. The electrically driven matching gear abrasive flow polishing device according to claim 1, characterized in that: A positioning box (14) is fastened to the polishing table (1), a feed port (15) is provided at the top of the positioning box (14), a discharge port (16) is provided at the bottom of the positioning box (14), two gears to be processed are installed in the positioning box (14), the two gears are vertically arranged, and the two gears are meshed and connected, and the meshing position of the two gears is directly below the feed port (15).

10. The electrically driven matching gear abrasive flow polishing device according to claim 9, characterized in that: An auxiliary motor (17) is installed at the bottom of the gear, and the base of the auxiliary motor (17) is fastened to the positioning box (14) by fastening bolts.

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