A processing technology for an inner gear ring

Abstract

This application discloses a processing technology for internal gear rings, including sawing, heating, forging, annealing, edge trimming, tempering, and tooth groove forming. After sawing, the raw material is inspected by a testing device. The testing device includes a testing platform, with a conveyor belt on one side for transferring the columnar raw material from the sawing machine to the testing platform. The testing platform is equipped with a fixing mechanism for fixing the columnar raw material on the testing platform, a testing mechanism for inspecting the columnar raw material fixed on the testing platform, and a diversion structure for separating columnar raw materials requiring secondary processing from those not requiring secondary processing. This application effectively removes burrs on the columnar raw material that could affect the quality of the internal gear ring product before heating and forging, ensuring the quality of the finished internal gear ring.

Description

Technical Field

[0001] This application relates to the field of gear forging processing, and in particular to a processing technology for internal gear rings. Background Technology

[0002] The internal gear ring refers to the internal gear on the same axis as the planet carrier in a planetary gear transmission. It is an essential component required for the manufacture of planetary reducers.

[0003] When manufacturing internal gear rings, round or square steel is usually cut into blocks by a saw and then heated and calcined. The heated blank is then die-forged using a press or air hammer with a mold. The die-forged gear ring blank is then trimmed, annealed, and precision-machined on a lathe. Finally, the tooth grooves of the internal gear ring are machined by methods such as gear shaping or gear hobbing.

[0004] Regarding the aforementioned related technologies, the inventors have discovered the following defects: when sawing the blank material with a sawing machine, irregular burrs and flanges are easily formed at the ends of the cut blank material after bending. If the burrs and flanges at the ends of the blank material with large volume are not removed before forging, they will become defects such as forging inclusions, cracks and scars during forging, which will affect the quality of the finished internal gear ring. Summary of the Invention

[0005] To avoid the problem of burrs and flanging formed during sawing of the blank affecting the quality of the internal gear ring, this application provides an internal gear ring processing technology.

[0006] The technical solution for machining an internal gear ring provided in this application is as follows:

[0007] A machining process for an internal gear ring includes the following steps:

[0008] S1. Sawing: Select the corresponding material according to the product requirements, and use a saw to cut the material into columnar raw materials of appropriate length. Then, use a detection device to detect the burrs on the sawn raw materials.

[0009] S2. Heating: The columnar raw material is placed in a heating furnace and heated.

[0010] S3. Forging: Forging raw materials into a ring shape using a press and a die;

[0011] S4. Annealing: The ring is reheated and annealed.

[0012] S5. Trimming: Trimming and turning the annealed ring body to the dimensions of the internal gear ring product.

[0013] S6. Conditioning: Conditioning the product after shaping.

[0014] S7. Tooth groove forming: The tooth groove of the product is processed by a gear hobbing machine;

[0015] The detection device includes a detection platform, a conveyor belt for transferring columnar raw materials from the saw to the detection platform on one side, a fixing mechanism for fixing the columnar raw materials on the detection platform, a detection mechanism for detecting the columnar raw materials fixed on the detection platform, and a diversion structure for separating columnar raw materials that require secondary processing from columnar raw materials that do not require secondary processing.

[0016] By adopting the above technical solution, before heating and forging the sawn cylindrical raw material, the burr condition of the cylindrical raw material is detected by a detection device. Specifically, the cylindrical raw material is conveyed to the detection platform by a conveyor belt, and a fixing mechanism fixes the cylindrical raw material on the detection platform. The detection mechanism detects the cylindrical raw material fixed on the detection platform, and based on the detection results, the cylindrical raw material is diverted by a diversion structure. The cylindrical raw material that does not require secondary processing is diverted for subsequent heating and forging, while the cylindrical raw material that requires secondary processing is diverted to clean the burrs on it. In this way, the burrs on the cylindrical raw material that will affect the quality of the internal gear ring product can be cleaned before heating and forging, thus ensuring the quality of the finished internal gear ring.

[0017] Optionally, a limiting groove is formed on the upper surface of the detection platform at one end near the conveyor belt, and the length direction of the limiting groove is perpendicular to the conveying direction of the conveyor belt.

[0018] The fixing mechanism includes a folding plate rotatably connected to the bottom wall of the limiting groove. The included angle between the two surfaces of the folding plate is an obtuse angle, and the rotation axis of the folding plate is parallel to the length direction of the limiting groove. Both sides of the folding plate are provided with torsion springs. When the folding plate is in its natural state, the side of the folding plate closest to the conveyor belt abuts against the bottom wall of the limiting groove.

[0019] By adopting the above technical solution, the axial direction of the columnar material is perpendicular to the conveying direction of the conveyor belt. Under this setting, the conveyor belt, which is conveyed to the detection platform, falls into the limiting groove under its own inertia and gravity, and its axial direction is parallel to the length direction of the limiting groove. The columnar material falling into the limiting groove presses down on the side of the folding plate away from the conveyor belt under its own gravity. At this time, the side of the folding plate close to the conveyor belt is driven to abut against the columnar material, and with the cooperation of the groove wall, the columnar material is clamped and fixed in the limiting groove.

[0020] Optionally, the detection mechanism includes a controller, a pressure sensor fixed to the bottom wall of the limiting groove, and an industrial camera disposed on the detection platform at two diagonal positions of the limiting groove. The industrial camera and the pressure sensor are both electrically connected to the controller. When the side of the folding plate away from the conveyor belt abuts against the bottom wall of the limiting groove, the pressure sensor is triggered.

[0021] By adopting the above technical solution, when the columnar material is pressed down on the side of the folding plate away from the conveyor belt, the columnar material is fixed in the limiting groove by the side of the folding plate closer to the conveyor belt. At this time, the side of the folding plate away from the conveyor belt presses against the pressure sensor, causing the pressure sensor to be triggered. After the pressure sensor is triggered, it transmits the signal to the controller that is electrically connected to it. The controller then controls two industrial cameras to take pictures of the two ends of the columnar material. The pictures are displayed in real time on the backend under the control of the controller. The staff in the backend can view the pictures of both ends of the columnar material on the same screen and judge the burr condition of the cut surface of the columnar material through the pictures, and then screen the columnar material.

[0022] Optionally, an electromagnet is also embedded in the bottom wall of the limiting groove. The electromagnet is electrically connected to the controller. When the side of the folding plate away from the conveyor belt abuts against the bottom wall of the limiting groove, the projection of the side of the folding plate away from the conveyor belt onto the bottom wall of the limiting groove covers the electromagnet.

[0023] By adopting the above technical solution, when the pressure sensor is triggered, the controller simultaneously triggers the electromagnet, so that the electromagnet can stably attract the side of the folding plate away from the conveyor belt to the bottom wall of the limiting groove, thereby enabling the side of the folding plate close to the conveyor belt to stably fix the columnar raw material in the limiting groove.

[0024] Optionally, the side of the folding plate near the conveyor belt includes a frame for connecting to the other side of the folding plate and a rotating plate rotatably connected to the frame. The rotating plate is rotatably connected to the frame on the side near the folding plate's pivot. The frame is also provided with a drive assembly for driving the rotating plate to rotate toward / away from the conveyor belt.

[0025] By adopting the above technical solution, the driving component drives the rotating plate to rotate, thereby adjusting the angle between the two surfaces of the folding plate, and thus adapting the folding plate to columnar raw materials with different fixed diameters, thereby increasing the applicability of the detection device.

[0026] Optionally, the drive assembly includes an active link and a driven link hinged to one end of the active link. The end of the active link away from the driven link is hinged to the frame, and the end of the driven link away from the active link is hinged to the rotating plate. The active link is also provided with a locking member for locking the driven link to the active link.

[0027] By adopting the above technical solution, adjusting the angle between the active connecting rod and the driven connecting rod can correspondingly adjust the angle between the rotating plate and the frame, and further adjust the angle between the rotating plate and the other side of the folding plate, so that the folding plate can be adapted to columnar raw materials with different fixed diameters.

[0028] Optionally, the diversion structure includes a non-destructive channel and a polishing channel respectively opened on both sides of the detection platform along the length direction of the limiting groove. Both the non-destructive channel and the polishing channel are connected to the limiting groove. The detection platform is also provided with a guiding mechanism for guiding the columnar raw material to the non-destructive channel / polishing channel.

[0029] By adopting the above technical solution, after the staff judges the burr condition of the end face of the columnar raw material from the background, the columnar raw material is moved from the limiting groove to the non-destructive channel or grinding channel through the guiding mechanism, so that the columnar raw material that has been inspected can proceed to the next step of processing.

[0030] Optionally, the guiding mechanism includes a mounting platform, and both ends of the detection platform perpendicular to the conveyor belt conveying direction are rotatably connected to the mounting platform, and the rotation axes at both ends of the detection platform are parallel to the conveyor belt conveying direction; a flipping component is provided on one side of the detection platform along its length direction for driving the detection platform to flip toward the non-destructive channel / the polishing channel.

[0031] By adopting the above technical solution, when the flipping component flips the detection platform with the end of the detection platform near the non-destructive channel as the axis, the columnar raw material moves from the limiting groove into the non-destructive channel and is then transferred from the non-destructive channel for heating and forging. When the flipping component flips the detection platform with the end of the detection platform near the grinding channel as the axis, the columnar raw material moves from the limiting groove into the grinding channel and is then transferred from the grinding channel to grind the burrs on the columnar raw material, so that the burr volume is reduced to not affect the subsequent heating and calcination of the columnar raw material.

[0032] Optionally, the flipping assembly includes a guide rail fixed to one side of the detection platform along its length, the length direction of the guide rail being perpendicular to the conveying direction of the conveyor belt, a rotating support slidably connected to the guide rail, and a rotating shaft rotatably connected to the rotating support, the axis of the rotating shaft being parallel to the conveying direction of the conveyor belt.

[0033] A slide rail is fixedly connected to one end of the rotating shaft facing the detection platform. The length direction of the slide rail is perpendicular to the plate surface direction of the detection platform. A slide bar is slidably connected on the slide rail. The side of the slide bar away from the slide rail is fixedly connected to the side of the detection platform close to the slide bar.

[0034] The guide rail is also provided with a linear drive component for driving the rotating support to slide along the length of the guide rail.

[0035] By adopting the above technical solution, when the linear drive unit drives the rotating support to move on the guide rail, the slide rail fixed on the rotating shaft is driven to rotate by the rotating shaft, which in turn drives the slide bar connected in the slide rail to rotate with the slide rail and move in the slide rail. In turn, the slide bar drives the detection platform to flip in different directions.

[0036] Optionally, the testing platform has an end-wall grinding channel and a side-wall grinding channel on the side of the grinding channel away from the non-destructive channel. The end-wall grinding channel and the side-wall grinding channel are connected to the grinding channel. The testing platform is also provided with a diverter for guiding columnar raw materials to the end-wall grinding channel / the side-wall grinding channel.

[0037] By adopting the above technical solution, due to the irregular shape and position of the burrs, some burrs may be folded to the side wall of the columnar material. After the staff judges the situation of the burrs, they use the diverter to guide the columnar material to the end wall grinding channel or the side wall grinding channel for targeted grinding of the columnar material.

[0038] In summary, this application includes at least one of the following beneficial technical effects:

[0039] 1. Before heating and forging the sawn cylindrical raw material, the burr condition of the cylindrical raw material is detected by an inspection device. Specifically, the cylindrical raw material is conveyed to the inspection platform by a conveyor belt, and the cylindrical raw material is fixed on the inspection platform by a fixing mechanism. The inspection mechanism detects the cylindrical raw material fixed on the inspection platform, and based on the inspection results, the cylindrical raw material is divided by a diversion structure. The cylindrical raw material that does not require secondary processing is diverted for subsequent heating and forging, while the cylindrical raw material that requires secondary processing is diverted to clean the burrs on it. In this way, the burrs on the cylindrical raw material that will affect the quality of the internal gear ring product can be cleaned before heating and forging, thus ensuring the quality of the finished internal gear ring.

[0040] 2. The columnar material is conveyed with its axial direction perpendicular to the conveyor belt's conveying direction. Under this setting, the conveyor belt, which is conveyed to the detection platform, falls into the limiting groove under its own inertia and gravity, and its axial direction is parallel to the length direction of the limiting groove. The columnar material falling into the limiting groove is pressed down on the side of the folding plate away from the conveyor belt under its own gravity. At this time, the side of the folding plate close to the conveyor belt is driven to abut against the columnar material, and with the cooperation of the limiting groove wall, the columnar material is clamped and fixed in the limiting groove.

[0041] 3. When the columnar material is pressed down by the folding plate away from the conveyor belt, the columnar material is fixed in the limiting groove by the side of the folding plate closer to the conveyor belt. At this time, the side of the folding plate away from the conveyor belt presses against the pressure sensor, causing the pressure sensor to be triggered. After the pressure sensor is triggered, it transmits the signal to the controller that is electrically connected to it. The controller then controls two industrial cameras to take pictures of the two ends of the columnar material. The pictures are displayed in real time on the backend under the control of the controller. The staff in the backend can view the pictures of both ends of the columnar material on the same screen and judge the burr condition of the cut surface of the columnar material through the pictures, and then screen the columnar material. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0043] Figure 2 This is a schematic diagram of the overall structure of the detection device in the embodiments of this application.

[0044] Figure 3 yes Figure 2 Enlarged diagram of part B.

[0045] Figure 4 yes Figure 1 An enlarged schematic diagram of part A in the middle.

[0046] Reference numerals: 1. Detection platform; 2. Conveyor belt; 3. Fixing mechanism; 31. Limiting groove; 32. Folding plate; 321. Fixing plate; 322. Frame; 323. Rotating plate; 324. Active connecting rod; 325. Driven connecting rod; 326. Locking bolt; 327. Locking nut; 328. Shaft seat; 4. Detection mechanism; 41. Industrial camera; 51. Non-destructive channel; 52. Grinding channel; 521. End wall grinding channel; 522. Side wall grinding channel; 6. Guide mechanism; 61. Mounting platform; 62. Tilting assembly; 621. Guide rail; 622. Rotating support; 623. Rotating shaft; 624. Slide rail; 625. Slide bar; 626. Drive motor; 7. Diverter; 71. Diverter plate; 72. Adhesive layer; 73. Diverter motor. Detailed Implementation

[0047] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0048] This application discloses a machining process for an internal gear ring. The machining process for the internal gear ring includes the following steps:

[0049] S1. Sawing: Select the corresponding material according to the product requirements, and use a saw to cut the material into columnar raw materials of appropriate length. Then, use a detection device to detect the burrs on the sawn raw materials.

[0050] Reference Figure 1The detection device includes a detection platform 1, a fixing mechanism 3 for fixing columnar raw materials on the detection platform 1, a detection mechanism 4 for detecting the columnar raw materials fixed on the detection platform 1, and a diversion structure for separating columnar raw materials that require secondary processing from columnar raw materials that do not require secondary processing.

[0051] After the burr condition on the sawn columnar raw material is detected and judged by the detection mechanism 4, the columnar raw material that needs secondary grinding is separated from the columnar raw material that does not need secondary grinding by the diversion structure. This allows the columnar raw material with larger burrs to undergo secondary processing before subsequent heating and forging, so as to avoid the formation of forging interlayers or cracks and scars in the forging when the burrs are added to the forging process, thereby ensuring the product quality of the internal gear ring that is subsequently processed.

[0052] Specifically, in conjunction with reference Figure 1 and Figure 2 In this embodiment of the application, the detection platform 1 is a rectangular platform, wherein a conveyor belt 2 is provided on one side of the detection platform 1 along its length, the end of the conveyor belt 2 is close to the detection platform 1, and the beginning end of the conveyor belt 2 is connected to the saw.

[0053] The columnar raw material cut by the saw is conveyed to the inspection platform 1 via the conveyor belt 2 with its axis perpendicular to the conveying direction for inspection to determine whether the columnar raw material needs secondary grinding. When the columnar raw material is conveyed to the inspection platform 1, the fixing mechanism 3 first fixes the columnar raw material on the inspection platform 1, and then the inspection mechanism 4 inspects the condition of the burrs on the columnar raw material.

[0054] Reference Figure 2 A limiting groove 31 is formed on the upper surface of the testing platform 1 at the end closest to the conveyor belt 2. The limiting groove 31 is trapezoidal, and the opening size of the limiting groove 31 gradually decreases along its opening direction. The extending direction of the limiting groove 31 is parallel to the length direction of the testing platform 1, and the center of the limiting groove 31 in the length direction corresponds to the position of the conveyor belt 2, so that after the columnar material is conveyed from the conveyor belt 2 to the testing platform 1, it can roll into the limiting groove 31 under the action of its inertia and its own gravity.

[0055] A folding plate 32 for fixing the columnar raw material within the limiting groove 31 is rotatably connected to the bottom wall of the limiting groove 31, in conjunction with reference to... Figure 3 The folding plate 32 includes a rotating plate 323 and a fixed plate 321. Both the rotating plate 323 and the fixed plate 321 are rectangular plates, and the length directions of the rotating plate 323 and the fixed plate 321 are parallel to the length direction of the detection platform 1.

[0056] The rotation axis of the folding plate 32 is parallel to the length direction of the limiting groove 31, and the rotating plate 323 of the folding plate 32 is set close to the conveyor belt 2, while the fixing plate 321 of the folding plate 32 is set away from the conveyor belt 2. Two bearing seats 328 are fixedly connected at intervals along the length direction of the bottom wall of the limiting groove 31, and the two ends of the rotation axis of the folding plate 32 are respectively rotatably connected to the bearing seats 328.

[0057] Meanwhile, torsion springs (not shown in the figure) are fitted and fixed at both ends of the rotating shaft of the folding plate 32. One end of the torsion spring is fixed to the rotating shaft of the folding plate 32, and the other end is fixed to the bearing seat 328. Under the action of the torsion spring, the rotating plate 323 of the folding plate 32 is close to the bottom wall of the limiting groove 31 when the folding plate 32 is not subjected to external force.

[0058] In this configuration, when the columnar material rolls into the limiting groove 31 via the conveyor belt 2, the columnar material moves toward the side of the limiting groove 31 away from the conveyor belt 2 under its inertia, and presses down on the fixing plate 321 under the gravity of the columnar material. At this time, the rotating plate 323 naturally tilts up and just presses the columnar material against the groove wall of the limiting groove 31 away from the conveyor belt 2, thereby fixing the columnar material without obstructing the two end faces of the columnar material.

[0059] Furthermore, in order to more stably fix the columnar raw material in the limiting groove 31 onto the detection platform 1, an electromagnet is also fixedly connected to the bottom wall of the limiting groove 31. In this embodiment, the fixing plate 321 is an iron plate. In other feasible embodiments, the fixing plate 321 can also be made of other materials, and an iron sheet is fixedly connected to the side of the fixing plate 321 away from the rotating plate 323 so that it can cooperate with the electromagnet.

[0060] When the fixing plate 321 is flipped so that its surface is parallel to the bottom wall of the limiting groove 31, the fixing plate 321 is in contact with the electromagnet. At this time, the electromagnet is activated, and the magnetic attraction between the electromagnet and the fixing plate 321 can keep the fixing plate 321 stably in a horizontal state. Even if the rotating plate 323 is in a state of pressing the columnar material against the groove wall of the limiting groove 31, it avoids the interaction force between the columnar material and the groove wall of the limiting groove 31 from driving the columnar material to roll back and drive the folding plate 32 to rotate, thereby stably fixing the columnar material on the detection platform 1.

[0061] To ensure timely activation of the electromagnet and to allow operators to promptly inspect the burr and flange condition at both ends of the cylindrical material while it is fixed to the detection platform 1 by the baffle plate 32, refer to... Figure 2 The detection mechanism 4 in this embodiment includes a controller (not shown in the figure), a pressure sensor (not shown in the figure), and an industrial camera 41.

[0062] The pressure sensor, industrial camera 41, and electromagnet are all electrically connected to the controller. The pressure sensor is fixed to the bottom wall of the limiting groove 31, and the upper end face of the pressure sensor is at the same height as the upper end face of the electromagnet. That is, when the fixing plate 321 rotates under the pressure of the columnar raw material until it comes into contact with the pressure electromagnet, the fixing plate 321 simultaneously comes into contact with the pressure sensor and triggers the pressure sensor.

[0063] After the pressure sensor is triggered, it transmits the signal to the controller, which then controls the electromagnet to start, stably fixing the columnar material in the limiting groove 31. At the same time, the controller also drives the industrial camera 41 to take pictures of the columnar material and displays the pictures in real time on the backend. The staff in the backend can view the pictures of both ends of the columnar material on the same screen, and judge the burr condition of the cut surface of the columnar material through the pictures, and screen the columnar material.

[0064] Specifically, there are two industrial cameras 41 in this embodiment. The industrial cameras 41 are fixed to the two sides of the limiting groove 31 on the detection platform 1 in the direction of the diagonal of the limiting groove 31, and the lens of the industrial camera 41 is set towards the center of the limiting groove 31.

[0065] In this configuration, when the columnar material is fixed in the limiting groove 31 by the folding plate 32, the two industrial cameras 41 are respectively facing the two ends of the columnar material and take a picture of the ends of the columnar material at an isometric angle. This gives the back-end staff a more three-dimensional view of the picture, and then the burr condition of the two ends of the columnar material can be accurately judged by the picture, and the columnar material can be screened based on this.

[0066] Since there is no specific pattern to the generation and shape of burrs, manual labor can make a more accurate judgment on the actual situation of burrs generated at the end of columnar raw materials. At the same time, under the settings of this application, the condition of burrs at the end of columnar raw materials can be judged with less manual labor and at a faster speed.

[0067] Furthermore, when different models of internal gear rings are produced, the diameter of the cylindrical raw materials is also different. In order to make the folding plate 32 suitable for cylindrical raw materials with different fixed diameters, the angle between the rotating plate 323 and the fixed plate 321 is adjustable.

[0068] Reference Figure 3 Specifically, the folding plate 32 also includes a frame 322, which is a rectangular frame. The fixing plate 321 is fixedly connected to the frame 322. At the same time, the rotating shaft 623 of the folding plate 32 is fixedly connected to the connection between the rotating plate and the frame 322. The rotating plate 323 is rotatably connected to the frame 322, and its rotating shaft is located on the side of the frame 322 close to the rotating shaft of the folding plate 32. At this time, by driving the rotating plate 323 to rotate on the frame 322, the included angle between the rotating plate 323 and the fixed plate 321 can be changed.

[0069] Therefore, the frame 322 is provided with a drive assembly for driving the rotating plate 323 to rotate toward / away from the fixed plate 321. Two sets of drive assemblies are provided, located at opposite ends of the frame 322 along its length. Each drive assembly includes an active connecting rod 324 hinged to the frame 322 and a driven connecting rod 325 hinged to the end of the active connecting rod 324 away from the frame 322. The end of the driven rod away from the active connecting rod 324 is hinged to the side of the rotating plate 323 away from the fixed plate 321, and the axial directions of the hinge axes of both the active connecting rod 324 and the driven connecting rod 325 are parallel to the extension direction of the limiting groove 31.

[0070] At this time, by changing the angle of the active and driven connecting rods 325, the angle between the rotating plate 323 and the frame surface of the frame 322 can be changed accordingly, thereby changing the angle between the rotating plate 323 and the fixed plate 321. The active connecting rod 324 is also provided with a locking member for locking the driven connecting rod 325 to the active connecting rod 324. When the included angle between the bamboo tube connecting rod and the driven connecting rod 325 is fixed by the locking member, the included angle between the rotating plate 323 and the fixed plate 321 can be fixed.

[0071] In this embodiment, the locking components are specifically a locking nut 327 and a locking bolt 326. The locking bolt 326 is the hinge shaft connecting the active connecting rod 324 and the driven connecting rod 325. It should be noted that in this embodiment, the portion of the locking bolt 326 that passes through the active connecting rod 324 and the driven connecting rod 325 is a smooth rod, and the portion extending out of the driven connecting rod 325 is engraved with threads that are compatible with the threads of the locking nut 327.

[0072] Loosening the locking nut 327 allows the active connecting rod 324 to rotate and adjust the angle between the active connecting rod 324 and the driven connecting rod 325 to accommodate columnar materials of different diameters. Tightening the locking nut 327 fixes the active connecting rod 324 and the driven connecting rod 325 at the adjusted angle, thereby fixing the angle between the rotating plate 323 and the fixed plate 321.

[0073] After the staff has inspected the burr condition of the columnar raw material ends, the raw material can be screened using a diversion structure. (Refer to reference...) Figure 2 and Figure 4 The diversion structure includes a non-destructive channel 51 and a polishing channel 52 respectively opened on the detection platform 1 on both sides of the limiting groove 31 along its length. Both the non-destructive channel 51 and the polishing channel 52 are connected to the limiting groove 31. In this embodiment, the non-destructive channel 51, the limiting groove 31 and the polishing channel 52 are connected to form a trapezoidal groove that runs through the detection platform 1.

[0074] The testing platform 1 is also equipped with a guide mechanism 6 for guiding columnar raw materials to the non-destructive channel 51 / grinding channel 52, thereby realizing the diversion of columnar raw materials.

[0075] Reference Figure 2 The guide mechanism 6 includes a mounting platform 61, the main body of which is a rectangular frame, and the detection platform 1 is mounted on the main body of the mounting platform 61. Specifically, cylindrical support shafts are fixed to both ends of the detection platform 1 along its length, and semi-circular grooves that are adapted to be inserted into the support shafts are provided on the upper surface of the four corners of the main body of the mounting platform 61.

[0076] When the testing platform 1 is rotated around the support shaft near the non-destructive channel 51, the columnar raw material can slide from the limiting groove 31 into the non-destructive channel 51 and be transferred out of the testing platform 1 through the non-destructive channel 51 for the next step of heating and forging.

[0077] When the testing platform 1 is rotated around the support shaft near the grinding channel 52, the columnar material can slide from the limiting groove 31 into the grinding channel 52 and be transferred out of the testing platform 1 through the grinding channel 52 for the next step of burr grinding. After the burr grinding is completed, it is heated and forged.

[0078] Therefore, the mounting platform 61 is also equipped with a flipping assembly 62 for driving the detection platform 1 to flip. (See reference...) Figure 2 The flipping component 62 includes a guide rail 621, which is mounted on the mounting platform 61 on the side of the detection platform 1 away from the conveyor belt 2 along its length, and the length of the guide rail 621 is parallel to the length of the detection platform 1.

[0079] The guide rail 621 is a trapezoidal rail, and a rotating support 622 is slidably connected to the guide rail 621, so that the sliding support can prevent longitudinal detachment and slide on the guide rail 621 along the length direction of the guide rail 621. A rotating shaft 623 is rotatably connected to the rotating support 622, and the axis of the rotating shaft 623 is parallel to the width direction of the detection platform 1.

[0080] A slide rail 624 is fixedly connected to one end of the rotating shaft 623 near the detection platform 1. The length direction of the slide rail 624 is perpendicular to the plate surface direction of the detection platform 1. A slide bar 625 is slidably connected on the slide rail 624, and the side of the slide bar 625 away from the slide rail 624 is fixedly connected to the middle of the side of the detection platform 1 near the slide bar 625.

[0081] At this time, the rotating support 622 is driven to move on the guide rail 621 toward the non-destructive channel 51, which in turn drives the slide rail 624 to move toward the non-destructive channel 51. With the cooperation of the slide rail 624 wall and the slide bar 625, the slide rail 624 moves toward the non-destructive channel 51 while rotating on the rotating support 622, and the slide bar 625 moves toward the end of the slide rail 624 that is closer to the non-destructive channel 51. This pulls the detection platform 1, which is fixed to the slide bar 625, to rotate around the support shaft that is closer to the non-destructive channel 51, so as to introduce the columnar raw material into the non-destructive channel 51.

[0082] Similarly, by driving the rotating support 622 to move along the guide rail 621 toward the grinding channel 52, the detection platform 1 can be rotated around the support shaft near the grinding channel 52, which will not be described in detail here. In order to drive the rotating support 622 to move on the guide rail 621, a linear drive component is also provided on the guide rail 621.

[0083] Reference Figure 2 In this embodiment, the linear drive component specifically comprises a lead screw (not shown in the figure) and a drive motor 626. The guide rail 621 is closed at both ends. The lead screw is rotatably connected to the guide rail 621 along its length, and its thread passes through the rotating support 622. The drive motor 626 is fixedly connected to the end wall of the guide rail 621, and its output end is coaxially fixedly connected to the lead screw. The drive motor 626 drives the lead screw to rotate, thereby causing the rotating support 622 to move within the guide rail 621 along its length. The drive motor 626 is also electrically connected to a controller, allowing operators to control the drive motor 626 to rotate the detection platform 1 for screening the columnar raw materials.

[0084] Furthermore, since the shape and position of the burrs are irregular, some burrs may be folded up to the side wall of the columnar material. Therefore, the inspection platform 1 has an end wall grinding channel 521 and a side wall grinding channel 522 on the side of the grinding channel 52 away from the non-destructive channel 51, and is provided with a diverter 7 for guiding the columnar material to the end wall grinding channel 521 / side wall grinding channel 522.

[0085] In the embodiments of this application, reference is made to Figure 4 The flow divider 7 is a flow divider plate 71 rotatably connected to the bottom wall of the grinding channel 52, and the rotation shaft 623 of the flow divider plate 71 is perpendicular to the bottom wall of the grinding channel 52. The lower end face of the detection platform 1 is also provided with a flow divider motor 73, and the output end of the flow divider motor 73 is coaxially fixed to the rotation shaft of the flow divider plate 71. When the flow divider motor 73 drives the flow divider plate 71 to rotate until it abuts against the groove wall of the grinding channel 52 away from the conveyor belt 2, an end wall grinding channel 52 is naturally formed that guides the columnar raw material to the side of the detection platform 1 close to the conveyor belt 2. When the flow divider motor 73 drives the flow divider plate 71 to rotate until it abuts against the groove wall of the grinding channel 52 close to the conveyor belt 2, a side wall grinding channel 52 is naturally formed that guides the columnar raw material to the side of the detection platform 1 away from the conveyor belt 2.

[0086] Meanwhile, the diverter motor 73 is electrically connected to the controller, which allows the operator to quickly change the position of the diverter plate 71 by cooperating with the controller and the diverter motor 73 after judging the burr situation on the columnar raw material.

[0087] Furthermore, since the columnar material will collide with the diverter plate 71 when the guide end wall grinding channel 521 / side wall grinding channel 522 is under the action of the diverter plate 71, in order to extend the service life of the diverter plate 71 and to avoid damage to the columnar material during the collision, adhesive layers 72 are fixed on both sides of the diverter plate 71 to reduce the impact force when the columnar material collides with the diverter plate 71.

[0088] Meanwhile, regardless of whether the columnar material is diverted to the non-destructive channel 51 or the grinding channel 52, when the columnar material slides out of the fixing plate 321 of the baffle 32, the pressure sensor is reduced and triggered again, driving the controller to shut down the electromagnet. After the electromagnet is shut down, the baffle 32 is reset under the action of the torsion spring and returns to the initial position, waiting for the next columnar material to be transferred to the limiting groove 31 for detection.

[0089] Once the columnar raw material has been tested, the subsequent processing steps for machining the internal gear ring can be carried out, specifically:

[0090] S2. Heating: The columnar raw material is placed in a heating furnace and heated.

[0091] S3. Forging: Forging raw materials into a ring shape using a press and a die;

[0092] S4. Annealing: The ring is reheated and annealed.

[0093] S5. Trimming: Trimming and turning the annealed ring body to the dimensions of the internal gear ring product.

[0094] S6. Conditioning: Conditioning the product after shaping.

[0095] S7. Tooth groove forming: The tooth groove of the product is processed by a gear hobbing machine.

[0096] The implementation principle of the internal gear ring processing technology in this application embodiment is as follows: The sawn cylindrical raw material is guided to the detection platform 1 by the conveyor belt 2. The cylindrical raw material is fixed on the detection platform 1 by the cooperation of the folding plate 32, electromagnet, pressure sensor and controller. The end of the cylindrical raw material is photographed by the cooperation of the controller and industrial camera 41, and the burr condition of the end of the cylindrical raw material is detected by the staff through the photograph. Then, the detection platform 1 is flipped by the cooperation of the guide rail 621, rotating support 622, rotating shaft 623, slide rail 624 and slide bar 625, so that the cylindrical raw material after detection is guided from the limiting groove 31 to the non-destructive channel 51 for heating and forging, or the burrs are removed by grinding the end wall grinding channel 521 or the side wall grinding channel 522 in the limiting groove 31, and then heated and forged. This avoids the large burrs on the cylindrical raw material from becoming defects such as forging interlayer, cracks and scars during forging, which affect the quality of the forging, and thus ensures the quality of the finished internal gear ring.

[0097] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A machining process for an internal gear ring, characterized in that: The process includes the following steps: S1. Sawing: Select the corresponding material according to the product requirements, and use a saw to cut the material into columnar raw materials of appropriate length. Then, use a detection device to detect the burrs on the sawn raw materials. S2. Heating: The columnar raw material is placed in a heating furnace and heated. S3. Forging: Forging raw materials into a ring shape using a press and a die; S4. Annealing: The ring is reheated and annealed. S5. Trimming: Trimming and turning the annealed ring body to the dimensions of the internal gear ring product. S6. Conditioning: Conditioning the product after shaping. S7. Tooth groove forming: The tooth groove of the product is processed by a gear hobbing machine; The detection device includes a detection platform (1), a conveyor belt (2) for transferring columnar raw materials from the saw to the detection platform (1) on one side, a fixing mechanism (3) for fixing columnar raw materials on the detection platform (1), a detection mechanism (4) for detecting columnar raw materials fixed on the detection platform (1), and a diversion structure for separating columnar raw materials that require secondary processing from columnar raw materials that do not require secondary processing. A limiting groove (31) is provided on the upper end of the detection platform (1) near the conveyor belt (2), and the length direction of the limiting groove (31) is perpendicular to the conveying direction of the conveyor belt (2). The fixing mechanism (3) includes a folding plate (32) rotatably connected to the bottom wall of the limiting groove (31). The included angle between the two plates of the folding plate (32) is an obtuse angle, and the rotation axis of the folding plate (32) is parallel to the length direction of the limiting groove (31). Both sides of the folding plate (32) are provided with torsion springs. When the folding plate (32) is in its natural state, the side of the folding plate (32) closest to the conveyor belt (2) abuts against the bottom wall of the limiting groove (31). The detection mechanism (4) includes a controller, a pressure sensor fixed to the bottom wall of the limiting groove (31), and an industrial camera (41) set on the detection platform (1) at two diagonal positions of the limiting groove (31). The industrial camera (41) and the pressure sensor are both electrically connected to the controller. When the side of the folding plate (32) away from the conveyor belt (2) abuts against the bottom wall of the limiting groove (31), the pressure sensor is triggered. An electromagnet is also fixed to the bottom wall of the limiting groove (31). The electromagnet is electrically connected to the controller. When the side of the folding plate (32) away from the conveyor belt (2) abuts against the bottom wall of the limiting groove (31), the projection of the side of the folding plate (32) away from the conveyor belt (2) on the bottom wall of the limiting groove (31) covers the electromagnet.

2. The internal gear ring machining process according to claim 1, characterized in that: The side of the folding plate (32) near the conveyor belt (2) includes a frame (322) for connecting to the other side of the folding plate (32) and a rotating plate (323) rotatably connected to the frame (322). The rotating plate (323) is rotatably connected to the frame (322) near the rotating shaft (623) of the folding plate (32). The frame (322) is also provided with a drive assembly for driving the rotating plate (323) to rotate toward / away from the conveyor belt (2).

3. The internal gear ring machining process according to claim 2, characterized in that: The drive assembly includes an active link (324) and a driven link (325) hinged to one end of the active link (324). The end of the active link (324) away from the driven link (325) is hinged to the frame (322), and the end of the driven link (325) away from the active link (324) is hinged to the rotating plate (323). The active link (324) is also provided with a locking member for locking the driven link (325) to the active link (324).

4. The internal gear ring machining process according to claim 1, characterized in that: The diversion structure includes a non-destructive channel (51) and a grinding channel (52) respectively opened on the detection platform (1) on both sides of the length direction of the limiting groove (31). The non-destructive channel (51) and the grinding channel (52) are both connected to the limiting groove (31). The detection platform (1) is also provided with a guide mechanism (6) for guiding the columnar raw material to the non-destructive channel (51) / grinding channel (52).

5. The internal gear ring machining process according to claim 4, characterized in that: The guiding mechanism (6) includes a mounting platform (61). The two ends of the detection platform (1) perpendicular to the conveying direction of the conveyor belt (2) are rotatably connected to the mounting platform (61), and the rotation axes of the two ends of the detection platform (1) are parallel to the conveying direction of the conveyor belt (2). A flipping component (62) is provided on one side of the detection platform (1) along the length direction for driving the detection platform (1) to flip toward the non-destructive channel (51) / the polishing channel (52).

6. The internal gear ring machining process according to claim 5, characterized in that: The flipping assembly (62) includes a guide rail (621) fixed to one side of the detection platform (1) along its length direction. The length direction of the guide rail (621) is perpendicular to the conveying direction of the conveyor belt (2). A rotating support (622) is slidably connected to the guide rail (621). A rotating shaft (623) is rotatably connected to the rotating support (622). The axis of the rotating shaft (623) is parallel to the conveying direction of the conveyor belt (2). The rotating shaft (623) is fixedly connected to a slide rail (624) at one end facing the detection platform (1). The length direction of the slide rail (624) is perpendicular to the plate surface direction of the detection platform (1). A slide bar (625) is slidably connected on the slide rail (624). The side of the slide bar (625) away from the slide rail (624) is fixedly connected to the side of the detection platform (1) close to the slide bar (625). The guide rail (621) is also provided with a linear drive for driving the rotating support (622) to slide along the length direction of the guide rail (621).

7. The internal gear ring machining process according to claim 4, characterized in that: The testing platform (1) has an end wall grinding channel (521) and a side wall grinding channel (522) on the side of the grinding channel (52) away from the non-destructive channel (51). The end wall grinding channel (521) and the side wall grinding channel (522) are connected to the grinding channel (52). The testing platform (1) is also provided with a diverter (7) for guiding columnar raw materials to the end wall grinding channel (521) / the side wall grinding channel (522).

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