High-precision spiral bevel gear automatic gear milling device and processing method thereof

Abstract

This invention discloses a high-precision automated milling device for spiral bevel gears and its processing method, specifically relating to the field of gear processing technology. The device includes a base, a limiting mechanism at the top of the base, an adjusting mechanism fixedly connected to the bottom of the limiting mechanism, and a mounting frame fixedly connected to the top of the base. A milling mechanism is slidably connected to the mounting frame. By setting the limiting mechanism, when limiting and fixing spiral bevel gears of different inner diameters, this invention only requires setting the motor to the largest gear inner diameter within the range achievable by the device. After the motor drives the limiting mechanism to reach the force required for limiting the gear workpiece, the rotating rod automatically enters a free-rotating state, preventing excessive or insufficient clamping force. This ensures more stable force on the gears when clamping and fixing spiral bevel gears of different inner diameters, protecting the device and improving clamping efficiency and milling accuracy.

Description

Technical Field

[0001] This invention relates to the field of gear processing technology, and more specifically, to a high-precision automated milling device for spiral bevel gears and its processing method. Background Technology

[0002] Bevel gears are used to transmit motion and power between two intersecting shafts. Spiral bevel gears are divided into two types: one is the arc tooth bevel gear, in which the axis of the large gear intersects with the axis of the small gear; the other is the quasi-hyperboloid spiral bevel gear, in which the axis of the large gear and the axis of the small gear have a certain offset. The world-class companies that produce spiral bevel gears are mainly Gleason in the United States and Oerlikon in Switzerland. Spiral bevel gears are widely used in mechanical transmission fields such as automobiles, aviation, and mining due to their advantages such as large overlap coefficient, strong load-bearing capacity, high transmission ratio, smooth transmission, and low noise.

[0003] Chinese Patent Application No. CN201610003267.5 discloses a fully automatic spiral bevel gear milling machine. The machine has a bed and material magazines located on both sides of the bed. An XY plane moving mechanism, movable arbitrarily on the top surface of the bed, is provided. A Z-axis guide rail is arranged along the Z-axis direction on this mechanism, and a toolbox is mounted on the Z-axis guide rail. The toolbox contains a C-axis capable of rotation, and a cutter head for machining spiral bevel gears is mounted on the C-axis. Robotic arms are located on both sides of the material magazine, enabling simultaneous and efficient automatic loading and unloading. The machine tool's B-axis is also parallel to the ground, and its rotary table is fixed to the upper front of the bed by bearings and rotates under the drive of the B-axis. An A-axis, perpendicular to the B-axis and capable of rotation, is mounted on the B-axis, and the bevel gear to be machined is mounted on the A-axis. This invention features a simple and compact structure, few parts, good manufacturability, and the ability to use two robotic arms for automatic and efficient loading and unloading.

[0004] Existing spiral bevel gear milling devices require resetting the clamping force for spiral bevel gears of different inner diameters each time they are used for limiting and fixing. This is cumbersome. Furthermore, if the set clamping force does not match the inner diameter of the spiral bevel gear, on the one hand, if the clamping force is too small, the spiral bevel gear will move during the milling process, resulting in a decrease in milling accuracy. On the other hand, if the clamping force is too large, the limiting mechanism will be subjected to excessive force during the clamping process, which may cause deformation and damage to the internal components of the limiting mechanism, thereby affecting the clamping accuracy. Summary of the Invention

[0005] To overcome the aforementioned deficiencies of the prior art, embodiments of the present invention provide a high-precision automated milling device for spiral bevel gears and its processing method. This addresses the problem mentioned in the background art: when existing spiral bevel gear milling devices limit and fix spiral bevel gears of different inner diameters, the clamping force needs to be reset according to the inner diameter of the spiral bevel gear each time, which is cumbersome. Furthermore, if the set clamping force does not match the inner diameter of the spiral bevel gear, on the one hand, insufficient clamping force will cause the spiral bevel gear to move during milling, resulting in decreased milling accuracy; on the other hand, excessive clamping force will cause excessive stress on the limiting mechanism during clamping, leading to deformation and damage of the internal components of the limiting mechanism, thereby affecting clamping accuracy.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a high-precision automated milling device for spiral bevel gears, comprising a base, a limiting mechanism at the top of the base, an adjusting mechanism fixedly connected to the bottom of the limiting mechanism, a mounting frame fixedly connected to the top of the base, and a milling mechanism slidably connected to the mounting frame;

[0007] The limiting mechanism includes a mounting block, with a vertically positioned support tube fixedly mounted at the center of the mounting block. A mounting plate is fixedly connected to the upper outer wall of the support tube. Multiple sliding grooves are evenly distributed around the center of the mounting plate. A hollow sliding rod is slidably connected in each groove. A first hollow block is fixedly connected to the end of each hollow sliding rod away from the support tube. A second hollow block is slidably connected to the interior of each first hollow block. A first spring is connected between the interior of each first hollow block and the opposite side of the corresponding second hollow block. A rotating disk is rotatably connected to the top of the mounting plate.

[0008] Preferably, a piston cylinder is fixedly connected to the top of the first hollow block, a piston chamber is formed inside the piston cylinder, a piston is slidably connected inside the piston chamber, a third spring is connected between the bottom of the piston and the bottom of the piston chamber, a piston rod is fixedly connected to the top of the piston, a pressure plate is fixedly connected to the top of the piston rod, and an air intake channel for driving the piston to reciprocate is formed inside the piston cylinder. One end of the air intake channel communicates with the piston chamber, and the other end of the air intake channel communicates with the interior of the first hollow block.

[0009] Preferably, each of the slide grooves is fixedly connected to a hollow tube, and each hollow tube is slidably and sealed to the interior of the corresponding hollow slide rod. The inner wall of the support tube is provided with multiple air inlets that communicate with the hollow tubes, and a one-way valve is provided in each air inlet.

[0010] Preferably, the top of the rotating disk has multiple through-type guide grooves, and each guide groove has a guide rod slidably connected to the outer wall of the hollow slide rod. The mounting disk and the rotating disk are both concentrically arranged with the support tube. The support tube has a first annular groove above the air inlet. The bottom of the rotating disk has a second annular groove of the same size and corresponding position as the first annular groove. The first annular groove and the second annular groove are connected. A top block is slidably connected in the first annular groove. The second annular groove has multiple insertion holes connected to the support tube.

[0011] Preferably, a rotating rod is concentrically arranged inside the support tube. The upper outer wall of the rotating rod has multiple limiting sliding holes that are the same number as the number of insertion holes and correspond to their positions. A pin is slidably connected in each limiting sliding hole. A second spring is connected between the other end of each pin and the corresponding limiting sliding hole. In the initial state, the pin is inserted into the insertion hole. When the top block moves upward, it can push the pin to slide into the limiting sliding hole.

[0012] Preferably, the support tube has a third annular groove below the air inlet, and multiple through holes penetrating the air inlet are formed inside the support tube. One end of each through hole is connected to the first annular groove, and the other end is connected to the third annular groove. An exhaust groove communicating with the third annular groove is formed on the inner wall of the support tube. A magnetic sealing plate for sealing the exhaust groove is slidably connected inside the third annular groove. A stop block for blocking the magnetic sealing plate from sealing or opening the exhaust groove is fixedly connected inside the third annular groove. A magnetic ring for driving the stop block to rotate is fixedly connected to the outer wall of the rotating rod. A motor is fixedly connected at the center of the mounting block, and the output end of the motor is fixedly connected to the rotating rod.

[0013] Preferably, the bottom of the mounting block is fixedly connected to a steering component for driving its rotation. The interior of the mounting block is hollow, and the top of the mounting block is open. Multiple balancing frames are fixedly mounted on the top of the mounting block. The multiple balancing frames are arranged in a ring-shaped, equidistant manner around the inner circumference surface of the mounting block, and the tops of the multiple balancing frames are flush with the top of the mounting block. The mounting plate is located above the multiple balancing frames.

[0014] Preferably, a guide plate is fixedly connected to the outer wall of the support tube, and a plurality of through-holes are provided on the outer wall of the mounting block. A liquid storage cover connected to the plurality of leakage holes is fixedly connected to the outer wall of the mounting block, and a material leakage plate is provided at the bottom of the liquid storage cover.

[0015] Preferably, the adjustment mechanism includes a translation slide block slidably connected to the top of the base, a steering block fixedly connected to the steering assembly is rotatably mounted inside the translation slide block, a drive assembly for driving the steering block to rotate is fixedly connected to one side of the translation slide block, and the milling mechanism includes a sliding assembly slidably connected to the mounting bracket, a telescopic cylinder assembly is fixedly connected to one side of the sliding assembly, and an electric cutting tool is fixedly connected to one end of the telescopic cylinder assembly.

[0016] A high-precision automated milling method for spiral bevel gears includes the following steps:

[0017] S1. First, fix the steering component inside the steering block, so that the limiting mechanism is installed vertically on the top of the steering block;

[0018] S2. Place the workpiece on top of the balance frame and drive the motor to rotate forward, so that the second hollow block and the pressure plate can fix the workpiece in both directions.

[0019] S3. The overall horizontal position of the workpiece is adjusted by driving the translation slide block, and the tilt angle of the workpiece is adjusted by driving the component.

[0020] S4. Start the sliding assembly to adjust the horizontal displacement of the electric tool, and start the telescopic cylinder assembly to adjust the contact position between the electric tool and the workpiece, so that the electric tool can perform milling on the surface of the workpiece.

[0021] S5. After the milling is completed, the drive motor reverses, causing the second hollow block and the pressure plate to return to their initial positions, thus releasing the workpiece from the limit.

[0022] The technical effects and advantages of this invention are as follows:

[0023] 1. By setting a limiting mechanism, this invention can limit and fix spiral bevel gears with different inner diameters. Only the motor needs to be set according to the largest gear inner diameter within the range that the device can reach. After the motor drives the limiting mechanism to reach the force required for the gear workpiece to be limited, the rotating rod will automatically be in an idle state. There will be no situation where the clamping force is too large or too small. This makes the gear more stable when clamping and fixing spiral bevel gears with different inner diameters, which can protect the device and improve the clamping efficiency and milling accuracy of the device.

[0024] 2. By setting multiple second hollow blocks, and using multiple hollow slide rods and the first hollow block to drive the corresponding second hollow blocks to move synchronously and equidistantly towards the outer periphery of the mounting plate, the inner wall of the gear workpiece can be uniformly and synchronously limited by multiple second hollow blocks, so that the workpiece is subjected to uniform force. It can be used for limiting gear workpieces of different sizes and specifications, thereby avoiding the problem of workpiece skewing, making the device more universal and easier to use in practice.

[0025] 3. By setting multiple pressure plates, the workpiece is limited and pressed by multiple second hollow blocks. At the same time, the multiple pressure plates can surround the inner circumference surface of the workpiece and limit and engage it in the vertical direction, thereby making the installation of the workpiece more stable and firm, and avoiding the problem of loosening and falling off during processing. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0027] Figure 2 This is a schematic diagram of the adjustment mechanism and milling mechanism of the present invention.

[0028] Figure 3 This is a schematic diagram of the limiting mechanism structure of the present invention.

[0029] Figure 4 This is a cross-sectional view of a portion of the limiting mechanism of the present invention.

[0030] Figure 5 This is a schematic diagram of the installation disk portion of the present invention.

[0031] Figure 6 This is a three-dimensional cross-sectional view of the internal structure of the installation disk portion of the present invention.

[0032] Figure 7 This is a cross-sectional view of the internal planar structure of the mounting disk portion of the present invention.

[0033] Figure 8 For the present invention Figure 7 Enlarged view of part A of the structure.

[0034] Figure 9 For the present invention Figure 7 Enlarged view of part B of the structure.

[0035] Figure 10 This is a schematic diagram of the exhaust channel mechanism of the present invention.

[0036] The attached figures are labeled as follows: 1. Base; 101. Mounting bracket; 2. Limiting mechanism; 200. Mounting block; 201. Support tube; 202. Mounting plate; 203. Slide groove; 204. Hollow slide rod; 205. First hollow block; 206. Second hollow block; 207. First spring; 208. Rotating plate; 209. Guide groove; 210. Guide rod; 211. Piston cylinder; 212. Piston chamber; 213. Piston; 214. Piston rod; 215. Pressure plate; 216. Air intake passage; 217. Hollow tube; 218. Air inlet; 219. One-way valve; 220. First annular groove; 221. Second annular groove; 222. 1. Top block; 223. Insertion hole; 224. Rotating rod; 225. Limiting sliding hole; 226. Pin; 227. Second spring; 228. Third annular groove; 229. Connecting hole; 230. Exhaust groove; 231. Magnetic sealing plate; 232. Stop block; 233. Magnetic ring; 234. Motor; 235. Third spring; 24. Steering assembly; 25. Balance frame; 26. Guide plate; 27. Leakage hole; 28. Liquid storage cover; 29. ​​Material leakage plate; 3. Adjustment mechanism; 31. Translation slide; 32. Steering block; 33. Drive assembly; 4. Milling mechanism; 41. Sliding assembly; 42. Telescopic cylinder assembly; 43. Electric cutting tool. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Example 1

[0039] Refer to the instruction manual appendix Figure 1-2 An embodiment of the present invention provides a high-precision automated milling device for spiral bevel gears, comprising a base 1, a limiting mechanism 2 on the top of the base 1, an adjusting mechanism 3 fixedly connected to the bottom of the limiting mechanism 2, a mounting frame 101 fixedly connected to the top of the base 1, and a milling mechanism 4 slidably connected to the mounting frame 101.

[0040] Refer to the instruction manual appendix Figure 3-6The limiting mechanism 2 includes a mounting block 200. A vertically positioned support tube 201 is fixedly mounted at the center of the mounting block 200. A mounting plate 202 is fixedly connected to the upper outer wall of the support tube 201. Multiple sliding grooves 203 are evenly distributed around the center inside the mounting plate 202. A hollow sliding rod 204 is slidably connected within each groove 203. A first hollow block 205 is fixedly connected to the end of each hollow sliding rod 204 away from the support tube 201. A second hollow block 205 is slidably and sealed inside each first hollow block 205. 06. The outer side of the second hollow block 206 is made of wear-resistant material. A first spring 207 is connected between the interior of each first hollow block 205 and the opposite side of the corresponding second hollow block 206. A rotating disk 208 is rotatably connected to the top of the mounting disk 202. The top of the rotating disk 208 is provided with multiple through-shaped guide grooves 209. Each guide groove 209 is slidably connected to a guide rod 210 that is fixedly connected to the outer wall of the hollow slide rod 204. The mounting disk 202 and the rotating disk 208 are both concentrically arranged with the support tube 201.

[0041] In actual use, the workpiece is placed stably on top of multiple balance frames 25. By rotating the rotating disk 208, multiple guide rods 210 are driven by the limiting action of the corresponding guide grooves 209 to drive multiple hollow slide rods 204 to slide synchronously in the corresponding slide grooves 203. The multiple hollow slide rods 204 synchronously drive the corresponding first hollow block 205 and second hollow block 206 to limit and press against the inner wall of the workpiece. This allows the workpiece to be initially limited and fixed in the horizontal direction in a ring-shaped and equidistant state from its inner circumference surface. This ensures that the workpiece can automatically maintain a centered and stable position during the initial limiting process, thereby avoiding the problem of workpiece tilting affecting the processing progress.

[0042] refer to Figure 5-9 As shown, a piston cylinder 211 is fixedly connected to the top of the first hollow block 205. A piston chamber 212 is opened inside the piston cylinder 211. A piston 213 is slidably connected inside the piston chamber 212. A third spring 235 is connected between the bottom of the piston 213 and the bottom of the piston chamber 212. A piston rod 214 is fixedly connected to the top of the piston 213. A pressure plate 215 is fixedly connected to the top of the piston rod 214. An air intake channel 216 for driving the piston 213 to reciprocate is opened inside the piston cylinder 211. One end of the air intake channel 216 communicates with the piston chamber 212, and the other end of the air intake channel 216 communicates with the interior of the first hollow block 205. The piston 213 is located at the top of the piston chamber 212 in the initial position.

[0043] In actual use, air is injected into the corresponding piston chamber 212 through the air intake channel 216, which simultaneously causes the corresponding piston 213 to squeeze the third spring 235, driving the piston rod 214 and the pressure plate 215 to move downwards. This causes the pressure plate 215 to be positioned and pressed against the top of the gear workpiece, thereby allowing the gear workpiece to be fixed in the longitudinal direction in a ring-shaped, equidistant manner from its inner circumference surface. Thus, when the workpiece is processed at different tilt angles, it is always stably fixed on the top of the mounting block 200, thus avoiding the problem of the workpiece loosening and falling off during processing.

[0044] Reference Figure 1 and 2 As shown, the adjustment mechanism 3 includes a translation slide 31 slidably connected to the top of the base 1. A steering block 32 fixedly connected to the steering assembly 24 is rotatably mounted inside the translation slide 31. A drive assembly 33 for driving the steering block 32 to rotate is fixedly connected to one side of the translation slide 31. The milling mechanism 4 includes a sliding assembly 41 slidably connected to the mounting bracket 101. A telescopic cylinder assembly 42 is fixedly connected to one side of the sliding assembly 41. An electric cutter 43 is fixedly connected to one end of the telescopic cylinder assembly 42.

[0045] Reference Figure 3 and 4 As shown, a steering component 24 for driving the mounting block 200 to rotate is fixedly connected to the bottom of the mounting block 200. The interior of the mounting block 200 is hollow, and the top of the mounting block 200 is open. Multiple balance frames 25 are fixedly mounted on the top of the mounting block 200. The multiple balance frames 25 are arranged in a ring at equal intervals around the inner circumference surface of the mounting block 200, and the tops of the multiple balance frames 25 are flush with the top of the mounting block 200. The mounting plate 202 is located above the multiple balance frames 25.

[0046] Reference Figure 3 and 4 As shown, a guide plate 26 is fixedly connected to the outer wall of the support tube 201, and a plurality of through-holes 27 are provided on the outer wall of the mounting block 200. A liquid storage cover 28 connected to the plurality of through-holes 27 is fixedly connected to the outer wall of the mounting block 200, and a material leakage plate 29 is provided at the bottom of the liquid storage cover 28.

[0047] In actual use, the liquid storage cover 28 is used to collect the cooling wastewater generated during the milling and cooling process of the workpiece, and pour it out uniformly through the material discharge plate 29, so that the generated cooling wastewater can be filtered and reused, saving resources.

[0048] Example 2

[0049] In actual use, when fixing spiral bevel gears with different inner diameters, the clamping force needs to be reset according to the inner diameter of the spiral bevel gear each time, which is quite troublesome. Furthermore, if the set clamping force does not match the inner diameter of the spiral bevel gear, on the one hand, if the clamping force is too small, the spiral bevel gear will move during the milling process, resulting in a decrease in milling accuracy; on the other hand, if the clamping force is too large, the limiting mechanism 2 will be subjected to excessive force during the clamping process, which will cause the components inside the limiting mechanism 2 to deform and be damaged, thereby affecting the clamping accuracy. Therefore, this embodiment improves the device described in the above embodiment.

[0050] refer to Figure 6-10As shown, each slide groove 203 has a hollow tube 217 fixedly connected inside, and each hollow tube 217 is slidably and sealed inside the corresponding hollow slide rod 204. The inner wall of the support tube 201 has multiple air inlets 218 communicating with the hollow tubes 217. A one-way valve 219 is installed inside each air inlet 218. A first annular groove 220 is formed above the air inlets 218 inside the support tube 201. A second annular groove 221, the same size and corresponding in position to the first annular groove 220, is formed at the bottom of the rotating disk 208. The first annular groove 220 and the second annular groove... 221 is connected. A top block 222 is slidably connected in the first annular groove 220. The top of the top block 222 is made of wear-resistant material. When the top block 222 moves upward, it can push the pin 226 to slide into the limiting sliding hole 225. The inner side of the top of the top block 222 is an inclined surface. Multiple insertion holes 223 connected to the support tube 201 are opened in the second annular groove 221. A rotating rod 224 is concentrically arranged inside the support tube 201. Multiple limiting sliding holes 225, which are the same number and corresponding in position as the insertion holes 223, are opened on the upper outer wall of the rotating rod 224. Each limiting sliding hole 225 slides within the groove. A pin 226 is connected, with one end of each pin 226 near the support tube 201 being a cylindrical head. A second spring 227 is connected between the other end of each pin 226 and the corresponding limiting sliding hole 225. Initially, the pin 226 is inserted into the insertion hole 223. A third annular groove 228 is formed inside the support tube 201 below the air inlet 218. Multiple connecting holes 229 are formed inside the support tube 201, penetrating the air inlet 218. One end of each connecting hole 229 communicates with the first annular groove 220, and the other end communicates with the third annular groove 228. The inner wall of the support tube 201 is provided with an exhaust groove 230 that communicates with the third annular groove 228. A magnetic sealing plate 231 for sealing the exhaust groove 230 is slidably connected inside the third annular groove 228. A stop block 232 for blocking the magnetic sealing plate 231 from sealing or opening the exhaust groove 230 is fixedly connected inside the third annular groove 228. A magnetic ring 233 for driving the stop block 232 to rotate is fixedly connected to the outer wall of the rotating rod 224. A motor 234 is fixedly connected at the center of the mounting block 200. The output end of the motor 234 is fixedly connected to the rotating rod 224.

[0051] In actual use, first fix the steering assembly 24 inside the steering block 32 so that the limiting mechanism 2 is installed vertically on the top of the steering block 32, and then place the workpiece on the top of the balance frame 25.

[0052] The drive motor 234 drives the rotating rod 224 to rotate forward within the support tube 201. Since the pins 226 are initially inserted into the insertion holes 223, the rotating rod 224, through multiple pins 226, drives the rotating disk 208 to rotate forward. This causes multiple guide rods 210, under the limiting action of their corresponding guide grooves 209, to drive multiple hollow slide rods 204 to slide outward synchronously within their corresponding slide grooves 203. Each hollow tube 217 is sealed and slidably connected to the interior of its corresponding hollow slide rod 204. During the sliding process of the hollow slide rod 204, external air is drawn into the hollow slide rod 204 and the hollow tube 217 through the one-way valve 219 and the air inlet 218. This prevents the hollow slide rod 204 from being unable to move due to sealing. At the same time, it also allows the air inside the hollow slide rod 204, the hollow tube 217 and the first hollow block 205 to be replenished synchronously as the hollow slide rod 204 moves, so that the gas pressure inside the hollow slide rod 204, the hollow tube 217 and the first hollow block 205 remains constant.

[0053] Multiple hollow slide rods 204 synchronously drive the corresponding first hollow block 205 and second hollow block 206 to move towards the inner wall of the gear workpiece. When the second hollow block 206 contacts the inner wall of the gear workpiece, the second hollow block 206 will squeeze the first spring 207 to slide into the first hollow block 205. At this time, multiple second hollow blocks 206 limit and press against the inner wall of the workpiece, thereby initially limiting and fixing the inner circumferential surface of the workpiece in a ring-shaped and equidistant state.

[0054] Meanwhile, due to the setting of the one-way valve 219, the air inside the first hollow block 205 that has been squeezed by the second hollow block 206 cannot be discharged through the air inlet 218. Part of the air inside the first hollow block 205 will enter the corresponding piston chamber 212 through the air inlet channel 216, causing the corresponding piston 213 to squeeze the third spring 235 and drive the piston rod 214 and the pressure plate 215 to move downward, so that the pressure plate 215 is limited and pressed against the top of the gear workpiece, thereby enabling the gear workpiece to be limited and fixed in the longitudinal direction in a ring-shaped and equidistant state from its inner circumferential surface;

[0055] Another portion of the air inside the first hollow block 205 enters the first annular groove 220 through the hollow slide rod 204, hollow tube 217, air inlet 218 and connecting hole 229, thereby pushing the top block 222 to move upward. During the upward movement of the top block 222, the inclined surface of the top block 222 will contact the cylindrical head of the pin 226, thereby pushing the pin 226 to squeeze the second spring 227 to slide in the limiting slide hole 225 and slide out from the insertion hole 223, thus preventing it from continuing to drive the rotating disk 208 to rotate. At the same time, the top of the top block 222 contacts the top of the second annular groove 221. Since the top of the top block 222 is made of wear-resistant material, the rotating disk 208 cannot continue to rotate. At this time, the motor 234 drives the rotating rod 224 to be in an idle state, which cannot interfere with the limiting of the workpiece, thereby completing the bidirectional limiting of the workpiece.

[0056] Then, by driving the translation slide block 31, the overall horizontal position of the workpiece is adjusted, the tilt angle of the workpiece is adjusted by driving the component 33, the horizontal displacement of the electric tool 43 is adjusted by starting the sliding component 41, and the contact position between the electric tool 43 and the workpiece is adjusted by starting the telescopic cylinder component 42, so that the electric tool 43 can perform milling on the surface of the workpiece.

[0057] After milling is completed, the drive motor 234 reverses, causing the rotating rod 224 to reverse as well. First, the rotating rod 224 drives the magnetic ring 233, which, under magnetic force, opens the exhaust groove 230 via the magnetic sealing plate. It's important to note that when the rotating rod 224 rotates forward, it drives the magnetic ring 233, which, under magnetic force, drives the magnetic sealing plate 231 to rotate forward within the third annular groove 228. Under the limiting action of the stop block 232, the magnetic sealing plate 231 remains on the exhaust groove 230, sealing it. Once the exhaust groove 230 is open, the air in the piston chamber 212 and the first annular groove 220 is released. The material will be discharged through the connecting hole 229, the third annular groove 228 and the exhaust groove 230. Under the thrust of the third spring 235, the pressure plate 215 loses its restraint on the top of the gear. The top block 222 slides down into the first annular groove 220 and returns to its initial position. At this time, during the reversal of the rotating rod 224, the pin 226 will be re-inserted into the corresponding insertion hole 223 under the thrust of the second spring 227, thereby driving the rotating disk 208 to reverse. This causes the hollow slide rod 204 to return the first hollow block 205 and the second hollow block 206 to their initial positions under the action of the guide rod 210 and the guide groove 209, thereby releasing the restraint on the workpiece.

[0058] In summary, when limiting and fixing spiral bevel gears with different inner diameters, it is only necessary to set the motor 234 according to the largest gear inner diameter within the range that the device can reach. After the motor 234 drives the limiting mechanism 2 to reach the force required for limiting the gear workpiece, the rotating rod 224 will automatically be in an idle state, and there will be no situation where the clamping force is too large or too small. This makes the gear more stable when clamping and fixing spiral bevel gears with different inner diameters, which protects the device and improves the clamping efficiency and milling accuracy of the device.

[0059] Example 3

[0060] A high-precision automated milling method for spiral bevel gears includes the following steps:

[0061] S1. First, fix the steering assembly 24 inside the steering block 32 so that the limiting mechanism 2 is installed vertically on the top of the steering block 32.

[0062] S2. Place the workpiece on top of the balance frame 25 and drive the motor 234 to rotate forward, so that the second hollow block 206 and the pressure plate 215 can fix the workpiece in both directions.

[0063] S3. The overall horizontal position of the workpiece is adjusted by driving the translation slide block 31, and the tilt angle of the workpiece is adjusted by driving the component 33.

[0064] S4. Start the sliding assembly 41 to adjust the horizontal displacement of the electric tool 43, and start the telescopic cylinder assembly 42 to adjust the contact position between the electric tool 43 and the workpiece, so that the electric tool 43 can perform milling on the surface of the workpiece.

[0065] S5. After milling, the drive motor 234 reverses, causing the second hollow block 206 and the pressure plate 215 to return to their initial positions, thus releasing the restriction on the workpiece.

[0066] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-precision automated milling device for spiral bevel gears, comprising a base, characterized in that: The base has a limiting mechanism at its top, an adjusting mechanism fixedly connected to the bottom of the limiting mechanism, a mounting bracket fixedly connected to the top of the base, and a milling mechanism slidably connected to the mounting bracket. The limiting mechanism includes a mounting block, in which a vertically positioned support tube is fixedly mounted at the center of the mounting block. A mounting plate is fixedly connected to the upper outer wall of the support tube. Multiple sliding grooves are evenly distributed around the center of the mounting plate. A hollow sliding rod is slidably connected in each groove. A first hollow block is fixedly connected to the end of each hollow sliding rod away from the support tube. A second hollow block is slidably connected to the interior of each first hollow block. A first spring is connected between the interior of each first hollow block and the opposite side of the corresponding second hollow block. A rotating disk is rotatably connected to the top of the mounting block. Each of the aforementioned grooves is fixedly connected to a hollow tube inside, and each hollow tube is slidably and sealed inside the corresponding hollow slide rod. The inner wall of the support tube is provided with multiple air inlets that communicate with the hollow tubes, and a one-way valve is provided inside each air inlet. The top of the rotating disk has multiple through-shaped guide grooves, and each guide groove has a guide rod slidably connected to the outer wall of the hollow slide rod. The mounting disk and the rotating disk are both concentrically arranged with the support tube. The support tube has a first annular groove above the air inlet. The bottom of the rotating disk has a second annular groove of the same size and corresponding position as the first annular groove. The first annular groove and the second annular groove are connected. A top block is slidably connected in the first annular groove. The second annular groove has multiple insertion holes connected to the support tube. The support tube has a rotating rod concentrically arranged inside. The upper outer wall of the rotating rod has multiple limiting sliding holes that are the same number as the number of insertion holes and are corresponding in position. Each limiting sliding hole is slidably connected to a pin. The other end of each pin is connected to the corresponding limiting sliding hole with a second spring. The pin is initially inserted into the insertion hole. When the top block moves upward, it can push the pin to slide into the limiting sliding hole. The support tube has a third annular groove below the air inlet. Multiple through-holes are also present inside the support tube, with one end of each through-hole connected to the first annular groove and the other end connected to the third annular groove. An exhaust groove communicating with the third annular groove is formed on the inner wall of the support tube. A magnetic sealing plate for sealing the exhaust groove is slidably connected inside the third annular groove. A stop block for preventing the magnetic sealing plate from sealing or opening the exhaust groove is fixedly connected inside the third annular groove. A magnetic ring for driving the stop block to rotate is fixedly connected to the outer wall of the rotating rod. A motor is fixedly connected at the center of the mounting block, and the output end of the motor is fixedly connected to the rotating rod.

2. The high-precision automated milling device for spiral bevel gears according to claim 1, characterized in that: A piston cylinder is fixedly connected to the top of the first hollow block. A piston chamber is formed inside the piston cylinder. A piston is slidably connected inside the piston chamber. A third spring is connected between the bottom of the piston and the bottom of the piston chamber. A piston rod is fixedly connected to the top of the piston. A pressure plate is fixedly connected to the top of the piston rod. An air intake channel for driving the piston to reciprocate is formed inside the piston cylinder. One end of the air intake channel communicates with the piston chamber, and the other end of the air intake channel communicates with the interior of the first hollow block.

3. The high-precision automated milling device for spiral bevel gears according to claim 2, characterized in that: The bottom of the mounting block is fixedly connected to a steering component for driving its rotation. The interior of the mounting block is hollow, and the top of the mounting block is open. Multiple balancing frames are fixedly mounted on the top of the mounting block. The multiple balancing frames are arranged in a ring at equal intervals around the inner circumference surface of the mounting block, and the tops of the multiple balancing frames are flush with the top of the mounting block. The mounting plate is located above the multiple balancing frames.

4. The high-precision automated milling device for spiral bevel gears according to claim 3, characterized in that: A guide plate is fixedly connected to the outer wall of the support tube. Multiple through-holes are provided on the outer wall of the mounting block. A liquid storage cover connected to the multiple through-holes is fixedly connected to the outer wall of the mounting block. A material leakage plate is connected to the bottom of the liquid storage cover.

5. The high-precision automated milling device for spiral bevel gears according to claim 4, characterized in that: The adjustment mechanism includes a translation slide block slidably connected to the top of the base. A steering block fixedly connected to the steering assembly is rotatably mounted inside the translation slide block. A drive assembly for driving the steering block to rotate is fixedly connected to one side of the translation slide block. The milling mechanism includes a sliding assembly slidably connected to the mounting bracket. A telescopic cylinder assembly is fixedly connected to one side of the sliding assembly. An electric cutting tool is fixedly connected to one end of the telescopic cylinder assembly.

6. A high-precision automated milling method for spiral bevel gears, employing the high-precision automated milling device for spiral bevel gears as described in any one of claims 1-5, characterized in that, Includes the following steps: S1. First, fix the steering component inside the steering block, so that the limiting mechanism is installed vertically on the top of the steering block; S2. Place the workpiece on top of the balance frame and drive the motor to rotate forward, so that the second hollow block and the pressure plate can fix the workpiece in both directions. S3. The overall horizontal position of the workpiece is adjusted by driving the translation slide block, and the tilt angle of the workpiece is adjusted by driving the component. S4. Start the sliding assembly to adjust the horizontal displacement of the electric tool, and start the telescopic cylinder assembly to adjust the contact position between the electric tool and the workpiece, so that the electric tool can perform milling on the surface of the workpiece. S5. After the milling is completed, the drive motor reverses, causing the second hollow block and the pressure plate to return to their initial positions, thus releasing the workpiece from the limit.

Images