An electric drive matching gear abrasive flow polishing device

Abstract

The present application relates to the technical field of gear polishing, and particularly relates to an electric drive matching type gear abrasive flow polishing device, which includes a polishing table. A positioning fixture for positioning the gear is provided on the polishing table. The positioning fixture includes an upper plate, an upper ring, a collar, a lower plate, and a lower ring. The upper plate and the upper ring are used for clamping and positioning the upper half of the gear, the collar is used for clamping and positioning the tooth surface part in the middle of the gear, and the lower plate and the lower ring are used for clamping and positioning the lower half of the gear. The upper plate is provided with a feeding channel through which abrasive flows into the inside of the gear to polish the tooth surface. The lower plate is provided with a discharging channel through which abrasive flows out of the inside of the gear. The feeding channel and the discharging channel are kept connected. A flow limiting component is provided along the circumferential side on the inner wall of the collar, and the flow limiting component is used for defining the flowing path of the abrasive. The purpose of the present application is to be able to achieve stable clamping of the gear during abrasive flow processing, improve its processing effect, and thus be beneficial to improving the overall processing quality of the gear.

Description

Technical Field

[0001] This application relates to the technical field of gear polishing, and particularly to an electric drive matching type gear abrasive flow polishing device. Background Art

[0002] The abrasive flow machining process refers to a special finishing process in which a viscoelastic abrasive medium flows through the surface of the workpiece to be machined, causing the hard abrasive grains inside to collide with the workpiece surface, resulting in material removal, thereby deburring, chamfering the workpiece surface, and improving the surface quality.

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

[0004] This application provides an electric drive matching type gear abrasive flow polishing device, aiming to be able to achieve stable clamping of the gear during abrasive flow machining, improve its machining effect, and thus contribute to improving the overall machining quality of the gear.

[0005] This application provides an electric drive matching type gear abrasive flow polishing device, adopting the following technical solution:

[0006] An electric drive matching type gear abrasive flow polishing device includes a polishing table. A positioning fixture for positioning the gear is provided on the polishing table. The positioning fixture includes 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 for clamping and positioning the upper half of the gear. The sleeve 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 of the gear. The upper plate is provided with a feed channel through which abrasive grains flow into the gear interior to polish and grind the tooth surface. The lower plate is provided with a discharge channel through which abrasive grains flow out of the gear interior. The feed channel and the discharge channel are kept in communication. A flow limiting component is provided along the circumferential side on the inner wall of the sleeve ring, and the flow limiting component is used for defining the flow path of the abrasive grains.

[0007] By adopting the above technical solutions, the upper plate, upper ring, sleeve ring, lower plate and lower ring divide the positioning fixture into multiple independent modules, which makes it convenient to accurately control the weight of each module and is beneficial to manual operation. At the same time, it is convenient to assemble between the modules and can effectively ensure the assembly accuracy, which is further beneficial to further guarantee the quality of gear polishing. The flow-limiting component can effectively ensure that the flow channel gap between the tooth surface of the gear and the inner wall of the sleeve ring remains consistent on the entire surface scale of the gear, which makes the flow channel width and cross-sectional area as consistent as possible during the gear polishing process, and is further beneficial to ensuring the consistency of the gear surface processing effect and further improving the overall quality of gear polishing.

[0008] Preferably, the flow-limiting component includes a plurality of flow-limiting plates, the flow-limiting plates are integrally formed on the inner wall of the sleeve ring in the vertical direction, the plurality of flow-limiting plates are evenly distributed at intervals along the circumferential side of the sleeve ring, and a processing channel for abrasive particles to flow is formed between two adjacent flow-limiting plates, and the feeding channel, the processing channel and the discharging channel are kept in communication.

[0009] By adopting the above technical solutions, specifically during processing, the flow-limiting plates are clamped into the gaps between adjacent teeth of the gear, and the mutual clamping between these flow-limiting plates and the teeth of the gear is used to achieve the effect of stably clamping and positioning the whole gear. At the same time, while effectively ensuring the stable clamping of the gear, the width of the processing channels on the circumferential side of the gear remains consistent, which makes the flow channel width and cross-sectional area as consistent as possible during the gear polishing process, and is further beneficial to ensuring the consistency of the gear surface processing effect, effectively guaranteeing 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 overall quality of gear polishing.

[0010] Preferably, a cooling channel is opened along the length direction inside the flow-limiting plate, and the cooling channel is used to cool down the flow-limiting plate.

[0011] By adopting the above technical solutions, since the abrasive particles will continuously rub against the side wall of the flow-limiting plate while scouring the tooth surface of the gear in the processing channel, it is easy to cause local heating of the side wall of the flow-limiting plate. When local heating occurs on the flow-limiting plate, it will affect the effect of the abrasive particles polishing the tooth surface of the gear. Using the cooling channel to cool down the flow-limiting plate can effectively avoid local heating of the flow-limiting plate during the process of the abrasive particles scouring the tooth surface of the gear in the processing channel, and further affect the effect of the abrasive particles polishing and grinding the tooth surface of the gear.

[0012] Specifically, the upper and lower ends of the sleeve ring at the position corresponding to the flow-limiting plate are open, and a corresponding water pump is connected to the outside of the sleeve ring. The water pump pumps cooling water into the cooling channel of the flow-limiting plate through the opening on the sleeve ring, so as to realize the cooling and temperature reduction of the flow-limiting plate by using the cooling channel.

[0013] Preferably, an activity groove is formed in one side of the current-limiting plate close to the gear teeth along its length direction, a diversion plate is arranged in the activity groove, the diversion plate is rotatably installed in the activity groove, and the diversion plate is used to guide abrasive grains to the gear tooth surface.

[0014] By adopting the above technical solution, after the cooling water enters the cooling channel, it drives the diversion plate to rotate in the activity groove, and the rotated diversion plate can guide the abrasive grain particles flowing into the processing channel to the tooth surface of the gear, thereby effectively improving the polishing efficiency of the abrasive grains on the gear tooth surface.

[0015] Preferably, the diversion plate includes a first plate body and a second plate body. The first plate body is located in the activity groove, and the second plate body is located in the cooling channel. A rotating shaft is installed at the bottom of the activity groove along its width direction. Both ends of the rotating shaft respectively penetrate out of the activity groove. The first plate body is integrally connected with the rotating shaft. Connecting plates are integrally connected to the left and right ends of the rotating shaft respectively. The second plate body is integrally formed at one end of the two connecting plates away from the first plate body.

[0016] By adopting the above technical solution, specifically, the cooling water is pumped into the cooling channel in the direction from bottom to top. After the cooling water is pumped into the cooling channel, it will impact the second plate body upward, thereby driving the second plate body to rotate clockwise. While the second plate body rotates clockwise, it drives the rotating shaft to rotate through the connecting plate, and drives the first plate body to rotate clockwise through the rotating shaft. The initial states of the first plate body and the second plate body are as follows: First, the included angle between the first plate body and the second plate body is about 120°. In the initial state, the second plate body is inclined downward and the first plate body is inclined upward. When the cooling water impacts the second plate body from bottom to top, the second plate body rotates upward and the first plate body rotates downward. This makes the first plate bodies between adjacent current-limiting plates gather towards each other, so that when the abrasive grains enter the processing channel and pass through the adjacent first plate bodies, the adjacent first plate bodies will converge the abrasive grains towards the direction close to the gear tooth surface, enabling the abrasive grains to polish the gear tooth surface more efficiently and further improving the overall processing quality of the gear.

[0017] Preferably, sealing members are installed between the left and right ends of the rotating shaft extending out of the activity groove and the outer wall of the activity groove.

[0018] By adopting the above technical solution, the two ends of the rotating shaft are sealed by the sealing members, thereby effectively ensuring the sealing performance between the two ends of the rotating shaft extending out of the activity groove and the activity groove during the rotation process.

[0019] Preferably, torsion springs are connected between the left and right ends of the rotating shaft and the two connecting plates respectively.

[0020] By adopting the above technical solution, when the driving force of the cooling water is lost from the second plate body, it can be smoothly reset under the drive of the torsion spring, thereby making the gear polishing and grinding process more convenient and efficient.

[0021] Preferably, a clamping block is integrally formed at the end of the first plate body towards the direction close to the second plate body, and the clamping block is clamped and matched with the step of the movable groove.

[0022] By adopting the above technical solution, when the cooling water drives the second plate body to drive the first plate body to rotate, after the first plate body rotates, the clamping block is clamped to the step at the bottom of the movable groove. When the abrasive grains impact the first plate body downward, the step of the movable groove stably supports the clamping block, and thus the stability of the first plate body can be effectively increased through the clamping block. Furthermore, when the abrasive grains impact the first plate body downward, the first plate body is not prone to shaking and can accurately push the abrasive grains to the tooth surface of the gear.

[0023] Preferably, a positioning box is fastened to the polishing table. An inlet is opened at the top of the positioning box, and an outlet is opened at the bottom of the positioning box. Two gears to be processed are installed in the positioning box. Both gears are vertically arranged and are meshed with each other, and the meshing part of the two gears is directly below the inlet.

[0024] By adopting the above technical solution, specifically during processing, the abrasive grains are injected into the positioning box from the inlet at the top of the positioning box. The downward impact force of the abrasive grains will drive the two gears to rotate. During the meshing rotation of the two gears, the abrasive grains penetrate into the tooth surface of the gear to polish and grind the tooth surface. This setting method can polish the two gears simultaneously, and the two gears can be clamped and positioned with each other during the processing, effectively ensuring the stability of the processing of the two gears while improving the processing efficiency.

[0025] 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 through fastening bolts.

[0026] By adopting the above technical solution, since the flow rate of the abrasive grains is prone to fluctuate, and the two gears may not be able to effectively mesh and rotate due to the small impact force during the process of the abrasive grains driving the two gears to rotate, the 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 grains, which is conducive to ensuring that the abrasive grains can polish and grind the tooth surfaces of the two gears more stably, and is conducive to further improving the processing quality of the two gears.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. The upper plate, upper ring, sleeve ring, lower plate, and lower ring divide the positioning fixture into multiple independent modules, which makes it convenient to precisely control the weight of each module and is beneficial for manual operation. At the same time, it is convenient to assemble between the modules and can effectively ensure the assembly accuracy, which is further beneficial to further guarantee the quality of gear polishing. Through the flow-limiting component, it can effectively ensure that the flow channel gap between the tooth surface of the gear and the inner wall of the sleeve ring remains consistent across the entire surface scale of the gear. This enables 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 further beneficial to ensuring the consistency of the gear surface processing effect and further improving the overall quality of gear polishing;

[0029] 2. Since the abrasive grains continuously rub against the side walls of the flow-limiting plate while scouring the tooth surface of the gear in the processing channel, it is easy to cause local heating of the side walls of the flow-limiting plate. When local heating occurs on the flow-limiting plate, it will affect the effect of the abrasive grains grinding the tooth surface of the gear. Cooling the flow-limiting plate using the cooling channel can effectively prevent local heating of the flow-limiting plate during the process of the abrasive grains scouring the tooth surface of the gear in the processing channel, which will affect the effect of the abrasive grains polishing and grinding the tooth surface of the gear;

[0030] 3. The cooling water is pumped into the cooling channel in the direction from bottom to top. After the cooling water is pumped into the cooling channel, it will impact the second plate body upward, thereby driving the second plate body to rotate clockwise. While the second plate body rotates clockwise, it drives the rotating shaft to rotate through the connecting plate, and drives the first plate body to rotate clockwise through the rotating shaft. The initial states of the first plate body and the second plate body are as follows: First, the included angle between the first plate body and the second plate body is approximately 120°. In the initial state, the second plate body is inclined downward and the first plate body is inclined upward. When the cooling water impacts the second plate body from bottom to top, the second plate body rotates upward and the first plate body rotates downward. This makes the first plate bodies between adjacent flow-limiting plates gather towards each other, so that when the abrasive grains enter the processing channel and pass through the adjacent first plate bodies, the adjacent first plate bodies will converge the abrasive grains towards the direction close to the tooth surface of the gear, enabling the abrasive grains to polish and grind the tooth surface of the gear more efficiently and further improving the overall quality of gear processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a schematic structural diagram of the gear in the background technology specifically shown in the embodiment of the present application;

[0032] Figure 2 is a schematic structural diagram of the whole in the embodiment of the present application;

[0033] Figure 3 is a schematic structural diagram specifically showing the positional relationship of the discharge channel in the embodiment of the present application;

[0034] Figure 4It is a schematic structural diagram showing the positional relationship among the current-limiting plate, the processing channel, and the cooling channel in the embodiment of the present application;

[0035] Figure 5 is Figure 4 the enlarged schematic diagram at position A in

[0036] Figure 6 It is a schematic structural diagram showing the positional relationship among the first plate body, the rotating shaft, the connecting plate, and the seal in the embodiment of the present application;

[0037] Figure 7 It is a schematic structural diagram showing the positional relationship among the positioning box, the feed inlet, the discharge outlet, and the auxiliary motor in the embodiment of the present application.

[0038] Reference numerals: 1, polishing table; 2, positioning fixture; 21, upper plate; 22, upper ring; 23, collar; 24, lower ring; 25, lower plate; 3, feeding channel; 4, discharging channel; 5, current-limiting component; 51, current-limiting plate; 6, processing channel; 7, cooling channel; 8, movable groove; 9, diversion plate; 91, first plate body; 92, second plate body; 10, rotating shaft; 11, connecting plate; 12, seal; 13, clamping block; 14, positioning box; 15, feed inlet; 16, discharge outlet; 17, auxiliary motor. Detailed implementation manners

[0039] The following combines the attached Figure 2 - attached Figure 7 drawings to further elaborate on the present application in detail.

[0040] Embodiment 1:

[0041] The embodiment of the present application discloses an electric drive-matched gear abrasive flow polishing device. Referring to Figure 2 , it includes a polishing table 1. A positioning fixture 2 for positioning the gear is provided on the polishing table 1. Specifically, when polishing and grinding the gear, 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.

[0042] The positioning fixture 2 includes an upper plate 21, an upper ring 22, a collar 23, a lower ring 24, and a lower plate 25. The upper plate 21 and the upper ring 22 are used for clamping and positioning the upper half of the gear, the collar 23 is used for clamping and positioning the tooth surface part in the middle of the gear, and the lower plate 25 and the lower ring 24 are used for clamping and positioning the lower half of the gear.

[0043] Specifically, when clamping the gear, first, the collar 23 is sleeved on the circumferential 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 corresponding insertion blocks. After the upper plate 21 is installed, the insertion blocks of the upper plate 21 are inserted into the upper half of the gear, thereby completing the positioning of the upper half of the gear through the upper plate 21 and the upper ring 22. After the positioning of the upper half of the gear is completed, the lower plate 25 and the lower ring 24 are sleeved on the lower half of the gear.

[0044] The upper plate 21, the upper ring 22, the collar 23, the lower plate 25, and the lower ring 24 divide the positioning fixture 2 into multiple independent modules, which makes it convenient to accurately control the weight of each module and is beneficial to manual operation. At the same time, it is convenient to assemble between the modules and can effectively ensure the assembly accuracy, which is further beneficial to ensuring the quality of gear polishing.

[0045] Refer to Figure 2 、 Figure 3 and Figure 4 , the upper plate 21 is provided with a feeding channel 3 through which abrasive grains flow into the gear interior to polish the tooth surface. The lower plate 25 is provided with a discharging channel 4 through which abrasive grains flow out of the gear interior. The feeding channel 3 and the discharging channel 4 are kept in communication. During specific processing, the abrasive grains flow from the inlet channel to the tooth surface of the gear for polishing and then flow out from the discharging channel 4. At the same time, a flow-limiting component 5 is provided along the circumferential side on the inner wall of the collar 23. The overall shape of the flow-limiting component 5 is similar to an internal gear ring. The flow-limiting component 5 is used to define the flow path of the abrasive grains. Through the flow-limiting component 5, it can effectively ensure that the flow path gap between the tooth surface of the gear and the inner wall of the collar 23 remains consistent on the entire surface scale of the gear, which makes the gear maintain the consistency of the flow path width and cross-sectional area as much as possible during the polishing process, and is further beneficial to ensuring the consistency of the gear surface processing effect and improving the overall quality of gear polishing.

[0046] Specifically, refer to Figure 2 、 Figure 3 and Figure 4 , the flow-limiting component 5 includes a plurality of flow-limiting plates 51. The flow-limiting plates 51 are integrally formed on the inner wall of the collar 23 in the vertical direction. These flow-limiting plates 51 are evenly distributed at intervals along the circumferential side of the collar 23. A processing channel 6 for the flow of abrasive grains is formed between adjacent two flow-limiting plates 51. The feeding channel 3, the processing channel 6, and the discharging channel 4 are kept in communication. The tooth surface of the gear to be processed is located in the processing channel 6.

[0047] Specifically during processing, the current-limiting plate 51 is snapped into the gap between two adjacent teeth of the gear. By engaging with each tooth of the gear, the current-limiting plate 51 can stably hold and position the entire gear. At the same time, while effectively ensuring the stable clamping of the gear, the width of the processing channel 6 on the circumferential side of the gear remains consistent. This 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 machining effect on the gear surface, effectively guaranteeing the uniformity of the machining of each tooth surface of the gear, making the overall machining accuracy of the gear higher, and further improving the quality of the overall gear polishing process.

[0048] Furthermore, referring to Figure 4 , a cooling channel 7 is provided inside the current-limiting plate 51 along its length direction. The cooling channel 7 is used to cool down the current-limiting plate 51. Since the abrasive particles continuously rub against the side wall of the current-limiting plate 51 while flushing the tooth surface of the gear in the processing channel 6, it is easy to cause local heating of the side wall of the current-limiting plate 51. When local heating occurs on the current-limiting plate 51, it will affect the effect of the abrasive particles on polishing the tooth surface of the gear. Cooling down the current-limiting plate 51 using the cooling channel 7 can effectively prevent local heating of the current-limiting plate 51 during the process of the abrasive particles flushing the tooth surface of the gear in the processing channel 6, which will affect the effect of the abrasive particles on polishing and grinding the tooth surface of the gear.

[0049] Specifically, the collar 23 is open at the upper and lower ends at the position corresponding to the current-limiting plate 51. A corresponding water pump is connected to the outside of the collar 23. The water pump pumps cooling water into the cooling channel 7 of the current-limiting plate 51 through the opening on the collar 23, thereby cooling down the current-limiting plate 51 using the cooling channel 7.

[0050] Furthermore, referring to Figure 4 and Figure 5 , an activity groove 8 is provided along the length direction on the side of the current-limiting plate 51 close to the gear teeth. A diversion plate 9 is installed in the activity groove 8. The diversion plate 9 is rotatably installed in the activity groove 8. After the cooling water enters the cooling channel 7, it drives the diversion plate 9 to rotate in the activity groove 8. The rotated diversion plate 9 can guide the abrasive particles flowing into the processing channel 6 to the tooth surface of the gear, thereby effectively improving the efficiency of the abrasive particles in polishing and grinding the tooth surface of the gear.

[0051] Specifically, referring to Figure 4 , Figure 5 and Figure 6, the deflector 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 along the width direction of the bottom of the movable groove 8. Both ends of the rotating shaft 10 respectively penetrate and extend out of the movable groove 8, and the first plate body 91 is integrally connected to the rotating shaft 10. Connecting plates 11 are integrally connected to the left and right ends of the rotating shaft 10 respectively, 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.

[0052] Specifically, the cooling water is pumped into the cooling channel 7 in the direction from bottom to top. After the cooling water is pumped into the cooling channel 7, it will impact the second plate body 92 upward, thereby driving the second plate body 92 to rotate clockwise. While the second plate body 92 rotates clockwise, it drives the rotating shaft 10 to rotate through the connecting plate 11, and drives the first plate body 91 to rotate clockwise through the rotating shaft 10. The initial states of the first plate body 91 and the second plate body 92 are as follows: First, the included angle between the first plate body 91 and the second plate body 92 is about 120°. In the initial state, the second plate body 92 is inclined downward, and the first plate body 91 is inclined upward. When the cooling water impacts the second plate body 92 from bottom to top, the second plate body 92 rotates upward, and the first plate body 91 rotates downward. This makes the first plate body 91 between two adjacent current-limiting plates 51 gather towards each other, so that when the abrasive grains enter the processing channel 6 and pass through two adjacent first plate bodies 91, the two adjacent first plate bodies 91 will converge the abrasive grains towards the direction close to the gear tooth surface, enabling the abrasive grains to polish the gear tooth surface more efficiently and further improving the overall processing quality of the gear.

[0053] Furthermore, referring to Figure 5 and Figure 6 , sealing members 12 are 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 two ends of the rotating shaft 10 are sealed by the sealing members 12, which can effectively ensure the sealing performance 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 of the rotating shaft 10.

[0054] 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 respectively. This enables the second plate body 92 to be reset smoothly under the drive of the torsion springs when it loses the driving force of the cooling water, making the gear polishing and grinding process more convenient and efficient.

[0055] Furthermore, referring to Figure 5 and Figure 6, at the end of the first plate body 91, a clamping block 13 is integrally formed in the direction close to the second plate body 92. The clamping block 13 is in an overall "Z"-shaped structure. When the cooling water drives the second plate body 92 to drive the first plate body 91 to rotate, after the first plate body 91 finishes rotating, the clamping block 13 is clamped to the step at the bottom of the movable groove 8. When the abrasive grains impact the first plate body 91 downward, the step of the movable groove 8 stably supports the clamping block 13. Furthermore, through the clamping block 13, the stability of the first plate body 91 can be effectively increased. As a result, when the abrasive grains impact the first plate body 91 downward, the first plate body 91 is not prone to shaking and can accurately push the abrasive grains to the tooth surface of the gear.

[0056] The implementation principle of an electric drive matching type gear abrasive flow polishing device according to an embodiment of the present application is as follows:

[0057] Specifically, when clamping the gear, first, the collar 23 is sleeved on the circumferential 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. At the bottom of the upper plate 21, corresponding insertion blocks are integrally formed. After the upper plate 21 is installed, the insertion blocks of the upper plate 21 are inserted into the upper half of the gear, thereby completing the positioning of the upper half of the gear through the upper plate 21 and the upper ring 22. After the positioning of the upper half of the gear is completed, the lower plate 25 and the lower ring 24 are sleeved on the lower half of the gear.

[0058] The upper plate 21, the upper ring 22, the collar 23, the lower plate 25, and the lower ring 24 divide the positioning fixture 2 into multiple independent modules, which makes it convenient to accurately control the weight of each module and is beneficial to manual operation. At the same time, it is convenient to assemble between the modules and can effectively ensure the assembly accuracy, which is further beneficial to ensuring the quality of gear polishing processing.

[0059] Specifically, during processing, the flow limiting plates 51 are clamped into the gaps between adjacent teeth of the gear. By using the mutual clamping between these flow limiting plates 51 and each tooth of the gear, the effect of stably clamping and positioning the whole gear is achieved. At the same time, while effectively ensuring the stable clamping of the gear, the width of the processing channel 6 on the circumferential side of the gear remains consistent. This makes the gear effectively maintain the consistency of the flow channel width and cross-sectional area during the polishing process, which is beneficial 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 gear polishing processing.

[0060] Since the abrasive grains continuously rub against the side wall of the flow-limiting plate 51 while scouring 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 local heating occurs on the flow-limiting plate 51, it will affect the effect of the abrasive grains on polishing the gear tooth surface. Cooling the flow-limiting plate 51 through the cooling channel 7 can effectively avoid local heating of the flow-limiting plate 51 during the process of the abrasive grains scouring the gear tooth surface in the processing channel 6, and further affect the effect of the abrasive grains on polishing and grinding the gear tooth surface.

[0061] Specifically, the collar 23 is open at the upper and lower ends of the position corresponding to the flow-limiting plate 51. 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, so as to cool down the flow-limiting plate 51 by using the cooling channel 7.

[0062] Embodiment 2:

[0063] The difference between the embodiment of the present application and Embodiment 1 is

[0064] Referring to Figure 2 and Figure 7 , a positioning box 14 is vertically fixed on the polishing table 1 through fastening bolts. The top of the positioning box 14 is provided with a feeding port 15, and the bottom of the positioning box 14 is provided with a discharging port 16. Two gears to be processed are installed in the positioning box 14. Both gears are vertically arranged and meshed with each other, and the meshing part of the two gears is directly below the feeding port 15.

[0065] Specifically, when processing, the abrasive grains are injected into the positioning box 14 from the feeding port 15 at the top of the positioning box 14. The downward impact force of the abrasive grains will drive the two gears to rotate. During the meshing rotation of the two gears, the abrasive grains penetrate into the tooth surface of the gears to polish and grind the tooth surface. This setting method can polish the two gears simultaneously, and the two gears can be clamped and positioned with each other during the processing, which can effectively ensure the stability of the processing of the two gears while improving the processing efficiency.

[0066] The gears in the embodiment of the present application are simple and ordinary gears.

[0067] Furthermore, referring 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 inside of the positioning box 14 through fastening bolts. Since the flow rate of the abrasive grains is prone to fluctuate, and the two gears may not be able to effectively mesh and rotate due to the small impact force during the process of the abrasive grains 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 grains, which is beneficial to ensuring that the abrasive grains can polish and grind the tooth surfaces of the two gears more stably, and is beneficial to further improving the processing quality of the two gears.

[0068] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. An electric drive matching type gear abrasive flow polishing device, characterized in that: It includes a polishing table (1), on which a positioning fixture (2) for positioning a gear is provided. The positioning fixture (2) includes an upper plate (21), an upper ring (22), a collar (23), a lower plate (25), and a lower ring (24). The upper plate (21) and the upper ring (22) are used for clamping and positioning the upper half of the gear. The collar (23) is used for clamping and positioning the tooth surface part in the middle of the gear. The lower plate (25) and the lower ring (24) are used for clamping and positioning the lower half of the gear. The upper plate (21) is provided with a feeding channel (3) through which abrasive grains flow into the interior of the gear to polish the tooth surface. The lower plate (25) is provided with a discharging channel (4) through which abrasive grains flow out of the interior of the gear. The feeding channel (3) and the discharging channel (4) are kept in communication. A flow-limiting component (5) is provided along the circumferential side of the inner wall of the collar (23), and the flow-limiting component (5) is used for defining the flowing path of the abrasive grains. The flow-limiting component (5) includes a plurality of flow-limiting plates (51). The flow-limiting plates (51) are integrally formed on the inner wall of the collar (23) in the vertical direction. The plurality of flow-limiting plates (51) are evenly distributed at intervals along the circumferential side of the collar (23). A processing channel (6) for the flow of abrasive grains is formed between two adjacent flow-limiting plates (51). The feeding channel (3), the processing channel (6), and the discharging channel (4) are kept in communication. A cooling channel (7) is formed along the length direction inside the flow-limiting plate (51), and the cooling channel (7) is used for cooling the flow-limiting plate (51). An activity groove (8) is formed along the length direction on the side of the flow-limiting plate (51) close to the gear teeth. A guide plate (9) is arranged in the activity groove (8). The guide plate (9) is rotatably installed in the activity groove (8), and the guide plate (9) is used for guiding the abrasive grains to the gear tooth surface. 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 activity 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 activity groove (8) along its width direction. Both ends of the rotating shaft (10) respectively penetrate and extend out of the activity groove (8). The first plate body (91) is integrally connected to the rotating shaft (10). Connecting plates (11) are integrally connected to the left and right ends of the rotating shaft (10) respectively. The second plate body (92) is integrally formed at one end of the two connecting plates (11) away from the first plate body (91).

2. The electro-drive matching gear abrasive flow polishing device according to claim 1, wherein: Sealing members (12) are installed between the left and right ends of the rotating shaft (10) extending out of the activity groove (8) and the outer wall of the activity groove (8).

3. The electro-drive matching type gear abrasive flow polishing device according to claim 2, wherein: Both ends of the rotating shaft (10) and the two connecting plates (11) are connected by torsion springs.

4. The electro-driven matching type gear abrasive flow polishing device according to claim 3, wherein: A clamping block (13) is integrally formed at the end of the first plate body (91) in the direction close to the second plate body (92), and the clamping block (13) is in clamping fit with the step of the activity groove (8).

Images