Machining equipment for bevel gear production

Abstract

The utility model discloses processing equipment for helical gear production, which belongs to the technical field of helical gear production and comprises a workbench, a controller and a tooth punching mechanism arranged at the top of the workbench, hobbing teeth are arranged on the tooth punching mechanism, a gear blank supporting mechanism is arranged on the workbench, and the gear blank supporting mechanism is arranged on the workbench. The gear punching mechanism comprises a gear blank supporting mechanism, a gear blank is arranged at the top of the gear blank supporting mechanism, a gear blank pressing mechanism is arranged at the top of the workbench and matched with the gear blank supporting mechanism to be used for fixing the gear blank, and the gear punching mechanism comprises two linear motors. And the same sliding seat is installed on output shafts of the two linear motors, and two telescopic motors are fixedly installed at the top of the sliding seat. Through the dual effects of pressing and negative pressure, the fixing stability of a gear blank can be improved, and by adjusting the distance between the two clamping plates and the distance between the two round bases, the requirement for installation of gear hobs of different sizes can be met.

Description

Technical Field

[0001] This utility model belongs to the field of helical gear manufacturing technology, specifically, it relates to a processing equipment for helical gear manufacturing. Background Technology

[0002] Gears are a common component in mechanical transmissions, and helical gears are a common type of gear. In practical applications, helical gears are widely used in high-speed, heavy-load applications due to their smooth transmission and low impact, vibration, and noise. The production of helical gears requires the use of a CNC lathe to cut the gear blank and machine it into the required shape. Currently, when using CNC lathes to machine helical gears, operators need to manually remove the machined workpiece after placing it in the blank for processing, resulting in low efficiency and making it unsuitable for mass production.

[0003] Publication (Announcement) No.: CN219852470U discloses a CNC lathe for helical gear production, belonging to the field of gear CNC lathe technology, including: a machine base; a main motor is fixedly connected to the top of the machine base, a connecting rod is driven to the shaft end of the main motor, a mounting seat is fixedly connected to the outer wall of the connecting rod, a guard plate is fixedly connected to the top of the mounting seat, an electric cylinder is fixedly connected to the outer wall of the guard plate, a main clamping plate is fixedly connected to the telescopic end of the electric cylinder, a secondary clamping plate is fixedly connected to the top of the mounting seat, and a slot is opened on the top of the mounting seat for inserting a main drawer. This utility model allows the gears processed on the mounting seat to slide directly into the main drawer for collection without manual collection, thus improving processing efficiency.

[0004] Existing helical gear processing methods cannot quickly fix the gear blank, making rapid replacement inconvenient.

[0005] To address the aforementioned problems, this application proposes a processing equipment for helical gear production. Utility Model Content

[0006] In view of the problems in the related technologies, this utility model proposes a processing equipment for helical gear production to overcome the above-mentioned technical problems existing in the existing related technologies.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A processing device for producing helical gears includes a worktable, a controller on the top of the worktable, a gear-opening mechanism on the top of the worktable, a gear hobbing mechanism on the gear-opening mechanism, a gear blank support mechanism on the worktable, a gear blank on the top of the gear blank support mechanism, and a gear blank clamping mechanism on the top of the worktable. The gear blank clamping mechanism cooperates with the gear blank support mechanism to fix the gear blank.

[0009] Preferably, the gear-cutting mechanism includes two linear motors, with the same slide mounted on the output shafts of the two linear motors. Two telescopic motors are fixedly mounted on the top of the slide, and the same transverse seat is mounted on the top of the two telescopic motors. Two clamping plates are slidably mounted on the transverse seat, and synchronous motors are mounted on the outer sides of the two clamping plates. Circular seats are mounted on the output shafts of the two synchronous motors, and hexagonal slots are formed on the inner sides of the two circular seats. Both ends of the gear hobbing are hexagonal structures, and the two ends of the gear hobbing mate with the two hexagonal slots.

[0010] By setting the hobbing gear between two circular seats and fixing it with two hexagonal slots, two synchronous motors drive the hobbing gear to rotate synchronously through the two circular seats. Two linear motors push the slide forward, thereby driving the hobbing gear forward and closer to the gear blank. Two telescopic motors push the transverse seat to adjust its height, and the transverse seat drives the hobbing gear to adjust its height, which is used for clamping the gear blank.

[0011] Preferably, the inner side of the transverse seat has two adjustment slots, each with a limit rod fixedly installed in it. An adjustment block is slidably installed on the outer side of each limit rod. The two adjustment blocks are fixedly installed with two clamping plates. Two push rod motors are fixedly installed on the outer side of the transverse seat. The output shafts of the two push rod motors are fixedly installed with the outer side of the two clamping plates.

[0012] Two push rod motors push the two clamping plates closer together or further apart to adjust the distance between the two clamping plates and the two round seats. This allows for the installation of gears of different sizes and facilitates the replacement of gears.

[0013] Preferably, the gear blank support mechanism includes a rotating rod, which is rotatably mounted on the top of the worktable via bearings. A servo motor is fixedly mounted on the bottom of the worktable, and the output shaft of the servo motor is fixedly mounted to the bottom end of the rotating rod. A circular plate is fixedly mounted on the top of the rotating rod, and a support plate is mounted on the top of the circular plate via screws. A convex positioning block is fixedly mounted at the center of the top of the support plate. The gear blank is placed on the top of the support plate, and the convex positioning block positions the gear blank.

[0014] By placing the gear blank on top of the support plate and positioning it with a convex positioning block, the servo motor drives the rotating rod to rotate. The rotating rod drives the gear blank to rotate through the circular plate and the support plate, so that the gear blank is machined by gear hobbing.

[0015] Preferably, the gear blank clamping mechanism includes two electric cylinders, both of which are fixedly installed at the bottom of the workbench. The top of the two electric cylinders is fixedly installed on the same top plate. A negative pressure pump is installed on the top of the top plate. A bend is connected to the negative pressure pump. A hollow ring is connected to the bottom of the bend. The hollow ring is fixedly installed on the top of the top plate. The top plate is located directly above the circular plate. Multiple negative pressure ports are provided at the bottom of the hollow ring. A solenoid valve and a negative pressure gauge are provided on the bend.

[0016] The gear blank is placed on top of the support plate. Two electric cylinders drive the top plate to move downwards. The top plate drives the hollow ring to move downwards. The hollow ring drives multiple negative pressure ports to press and fix the gear blank. The negative pressure pump works to generate negative pressure inside the hollow ring through the bend. The gear blank is attracted and fixed through multiple negative pressure ports, which improves the stability of the fixation. The negative pressure gauge is set to monitor the magnitude of the negative pressure.

[0017] Preferably, the top of the worktable has two ball grooves, and the bottom of the slide has two ball grooves embedded therein, the two of which are slidably connected to the inner walls of the two ball grooves.

[0018] By using two ball joints, the friction between the slide and the worktable is reduced.

[0019] In summary, the technical effects and advantages of this utility model are as follows:

[0020] Two electric cylinders drive the top plate to move downwards, which in turn drives the hollow ring to move downwards. The hollow ring then drives multiple negative pressure ports to press and fix the gear blank. The negative pressure pump works by creating negative pressure inside the hollow ring through a bend in the pipe, which then attracts and fixes the gear blank through the multiple negative pressure ports, thus improving the stability of the fixation.

[0021] By setting the hobbing gear between two circular seats and fixing it with two hexagonal slots, two synchronous motors drive the hobbing gear to rotate synchronously through the two circular seats, and two linear motors push the slide forward, thereby driving the hobbing gear forward and closer to the gear blank. Two push rod motors push the two clamping plates closer or further apart to adjust the distance between the two clamping plates and the two circular seats. This allows for the installation of hobbing gears of different sizes, facilitates the replacement of the hobbing gears, and enables the processing of gear blanks of different sizes.

[0022] This invention improves the stability of gear blank fixing through the dual action of clamping and negative pressure. By adjusting the distance between the two clamping plates and the two round seats, it can meet the installation requirements of gear hobbing of different sizes. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This utility model Figure 1 A schematic diagram of the structure viewed from below;

[0025] Figure 3 This utility model Figure 1 A schematic diagram of the side view structure;

[0026] Figure 4 This is a structural schematic diagram of the workbench, controller, gear blank support mechanism and related parts of this utility model;

[0027] Figure 5 This is a schematic diagram of the gear blank clamping mechanism of this utility model;

[0028] Figure 6 This is a bottom view of the gear blank clamping mechanism of this utility model.

[0029] Figure 7 This is a schematic diagram of the tooth-opening mechanism of this utility model;

[0030] Figure 8 This is a bottom view of the tooth-opening mechanism of this utility model.

[0031] Figure 9 This is a schematic diagram of the structure of the gear blank of this utility model.

[0032] In the picture:

[0033] 1. Workbench; 11. Controller; 12. Ball groove; 2. Gear cutting mechanism; 21. Linear motor; 22. Slide; 23. Telescopic motor; 24. Horizontal seat; 25. Adjustment groove; 26. Adjustment block; 27. Limit rod; 28. Clamping plate; 29. ​​Synchronous motor; 210. Round seat; 211. Hexagonal groove; 212. Push rod motor; 3. Gear blank support mechanism; 31. Rotating rod; 32. Round plate; 33. Support plate; 34. Convex positioning block; 35. Servo motor; 4. Gear blank clamping mechanism; 41. Top plate; 42. Electric cylinder; 43. Negative pressure pump; 44. Bend; 45. Negative pressure gauge; 46. Solenoid valve; 47. Hollow ring; 48. Negative pressure port; 5. Gear hobbing; 6. Gear blank. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0035] Reference Figure 1-9A processing device for producing helical gears includes a worktable 1, a controller 11 on the top of the worktable 1, a gear-opening mechanism 2 on the top of the worktable 1, a gear hobbing mechanism 5 on the gear-opening mechanism 2, a gear blank support mechanism 3 on the worktable 1, a gear blank 6 on the top of the gear blank support mechanism 3, and a gear blank clamping mechanism 4 on the top of the worktable 1. The gear blank clamping mechanism 4 cooperates with the gear blank support mechanism 3 to fix the gear blank 6.

[0036] Reference Figure 1 , Figure 4 , Figure 7 , Figure 8 In this embodiment, the gear-cutting mechanism 2 includes two linear motors 21. The output shafts of the two linear motors 21 are equipped with the same slide block 22. The top of the slide block 22 is fixedly equipped with two telescopic motors 23. The top of the two telescopic motors 23 is equipped with the same transverse seat 24. The transverse seat 24 is slidably equipped with two clamping plates 28. The outer sides of the two clamping plates 28 are equipped with synchronous motors 29. The output shafts of the two synchronous motors 29 are equipped with round seats 210. The inner sides of the two round seats 210 are provided with hexagonal slots 211. The two ends of the gear hobbing 5 are hexagonal structures. The two ends of the gear hobbing 5 are engaged with the two hexagonal slots 211. The top of the worktable 1 is provided with two ball grooves 12. The bottom of the slide block 22 is embedded with two 221s. The two 221s are slidably connected to the inner walls of the two ball grooves 12.

[0037] Specifically, the dual ball guide system uses 221 ball sets (6mm in diameter) with V-shaped ball grooves, reducing the coefficient of friction to 0.002.

[0038] High-precision positioning: The linear motor has a repeatability of ±2μm and a maximum moving speed of 1.2m / s.

[0039] By cooperating with two ball grooves 12, the friction between the slide 22 and the worktable 1 is reduced. The hobbing gear 5 is placed between two round seats 210 and fixed by two hexagonal slots 211. Two synchronous motors 29 drive the hobbing gear 5 to rotate synchronously through the two round seats 210. Two linear motors 21 push the slide 22 to move forward, thereby driving the hobbing gear 5 to move forward and approach the gear blank 6. Two telescopic motors 23 push the transverse seat 24 to adjust its height. The transverse seat 24 drives the hobbing gear 5 to adjust its height for the gear blank 6 to perform tooth clamping processing.

[0040] Specifically, the two ends of the hobbing gear adopt a hexagonal structure to cooperate with the hexagonal groove of the round seat to achieve a keyless connection (error ≤0.01mm). Dynamic clamping adjustment: the push rod motor drives the clamping plate to slide laterally, which is suitable for hobbing gears with a diameter of 20-150mm. The tool change time is shortened to 3 minutes (traditional mechanical fixtures require 15 minutes). The dual synchronous motors precisely control the speed difference of the hobbing gear (±5r / min) to avoid misalignment in the machining of helical teeth.

[0041] Reference Figure 1 , Figure 7 , Figure 8 In this embodiment, two adjustment slots 25 are provided on the inner side of the transverse seat 24. Limiting rods 27 are fixedly installed in both adjustment slots 25. Adjusting blocks 26 are slidably installed on the outer side of both limiting rods 27. The two adjusting blocks 26 are fixedly installed with two clamping plates 28. Two push rod motors 212 are fixedly installed on the outer side of the transverse seat 24. The output shafts of the two push rod motors 212 are fixedly installed with the outer side of the two clamping plates 28.

[0042] Two push rod motors 212 push the two clamping plates 28 to move closer or further apart, which is used to adjust the distance between the two clamping plates 28 and the two round seats 210. This can accommodate the installation of hobbing gears 5 of different sizes and facilitate the replacement of the hobbing gears 5.

[0043] Reference Figure 1 and Figure 4 In this embodiment, the gear blank support mechanism 3 includes a rotating rod 31, which is rotatably mounted on the top of the workbench 1 via bearings. A servo motor 35 is fixedly mounted on the bottom of the workbench 1, and the output shaft of the servo motor 35 is fixedly mounted to the bottom end of the rotating rod 31. A circular plate 32 is fixedly mounted on the top of the rotating rod 31, and a support plate 33 is mounted on the top of the circular plate 32 via screws. A convex positioning block 34 is fixedly mounted at the center of the top of the support plate 33. The gear blank 6 is placed on the top of the support plate 33, and the gear blank 6 is positioned by the convex positioning block 34.

[0044] By placing the gear blank 6 on top of the support plate 33 and positioning the gear blank 6 with the convex positioning block 34, the servo motor 35 drives the rotating rod 31 to rotate. The rotating rod 31 drives the gear blank 6 to rotate through the circular plate 32 and the support plate 33, so that the hobbing 5 can perform 360-degree machining on the gear blank 6.

[0045] Specifically, the five-axis linkage control involves: linear motors (X / Y axes) + telescopic motors (Z axis) + servo motors (C axis) + dual synchronous motors (A axis) working together.

[0046] Path optimization algorithm: The controller has a built-in helix angle compensation program, which can process helical gears with β = 8°-30° (tooth direction error < 0.03mm / m).

[0047] Reference Figures 1-3 , Figure 5 , Figure 6 In this embodiment, the gear blank clamping mechanism 4 includes two electric cylinders 42, both of which are fixedly installed at the bottom of the workbench 1. The top of the two electric cylinders 42 is fixedly installed on the same top plate 41. A negative pressure pump 43 is installed on the top of the top plate 41. A bend 44 is connected to the negative pressure pump 43. A hollow ring 47 is connected to the bottom of the bend 44. The hollow ring 47 is fixedly installed on the top of the top plate 41. The top plate 41 is located directly above the circular plate 32. Multiple negative pressure ports 48 are provided at the bottom of the hollow ring 47. A solenoid valve 46 and a negative pressure gauge 45 are provided on the bend 44.

[0048] The gear blank 6 is placed on top of the support plate 33. Two electric cylinders 42 drive the top plate 41 to move downward. The top plate 41 drives the hollow ring 47 to move downward. The hollow ring 47 drives multiple negative pressure ports 48 to press and fix the gear blank 6. The negative pressure pump 43 works to generate negative pressure inside the hollow ring 47 through the bend 44. The gear blank 6 is attracted and fixed through the multiple negative pressure ports 48, which improves the stability of the fixation. The negative pressure gauge 45 is set to monitor the magnitude of the negative pressure.

[0049] Specifically, the hollow ring is equipped with a miniature negative pressure port (0.8mm diameter), achieving a pressure uniformity of 95%. It features an intelligent pressure closed-loop system: a negative pressure gauge linked to a solenoid valve (0.1s response time) to maintain dynamic stability from -80kPa to -100kPa. It also offers the advantage of non-marking clamping: reducing surface indentations by 80% compared to mechanical clamps, making it particularly suitable for thin-walled gears (wall thickness ≥1.5mm).

[0050] Working principle: The gear blank 6 is placed on top of the support plate 33 and positioned by the convex positioning block 34. The servo motor 35 drives the rotating rod 31 to rotate. The rotating rod 31 drives the gear blank 6 to rotate through the circular plate 32 and the support plate 33, so that the hobbing gear 5 can perform 360-degree machining on the gear blank 6. With the gear blank 6 placed on top of the support plate 33, two electric cylinders 42 drive the top plate 41 to move downward. The top plate 41 drives the hollow ring 47 to move downward. The hollow ring 47 drives multiple negative pressure ports 48 to press and fix the gear blank 6. The negative pressure pump 43 works to generate negative pressure inside the hollow ring 47 through the bend 44. The gear blank 6 is attracted and fixed through the multiple negative pressure ports 48, improving the stability of the fixation. The negative pressure gauge 45 is set to monitor the negative pressure. The hobbing gear 5 is placed between two circular seats 210 and fixed by two hexagonal slots 211. Two synchronous motors 29 drive the hobbing gear 5 through the two circular seats 210. The gear 5 rotates synchronously, and two linear motors 21 push the slide 22 forward, which in turn drives the hobbing gear 5 forward and close to the gear blank 6. The two 221s cooperate with the two ball grooves 12 to reduce the friction between the slide 22 and the worktable 1. Two telescopic motors 23 push the horizontal seat 24 to adjust its height. The horizontal seat 24 drives the hobbing gear 5 to adjust its height for clamping the gear blank 6. Two push rod motors 212 push the two clamping plates 28 to move closer or further apart to adjust the distance between the two clamping plates 28 and the two round seats 210. This can accommodate the installation of hobbing gear 5 of different sizes and facilitate the replacement of hobbing gear 5. After processing, the solenoid valve 46 opens, which reduces the negative pressure inside the hollow ring 47. The two electric cylinders 42 drive the top plate 41 to move upward, and the hollow ring 47 leaves the gear blank 6, releasing the fixation of the gear blank 6. The processed gear blank 6 can then be removed.

[0051] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A processing device for producing helical gears, comprising a worktable (1), wherein a controller (11) is disposed on the top of the worktable (1), characterized in that, The top of the workbench (1) is provided with a gear opening mechanism (2), and a gear hobbing mechanism (5) is provided on the gear opening mechanism (2). The workbench (1) is provided with a gear blank support mechanism (3), and a gear blank (6) is provided on the top of the gear blank support mechanism (3). The top of the workbench (1) is provided with a gear blank clamping mechanism (4). The gear blank clamping mechanism (4) cooperates with the gear blank support mechanism (3) to fix the gear blank (6).

2. The processing equipment for producing helical gears according to claim 1, characterized in that, The gear-cutting mechanism (2) includes two linear motors (21). The output shafts of the two linear motors (21) are equipped with the same slide (22). The top of the slide (22) is fixedly equipped with two telescopic motors (23). The top of the two telescopic motors (23) is equipped with the same transverse seat (24). The transverse seat (24) is slidably equipped with two clamping plates (28). The outer sides of the two clamping plates (28) are equipped with synchronous motors (29). The output shafts of the two synchronous motors (29) are equipped with round seats (210). The inner sides of the two round seats (210) are provided with hexagonal slots (211). The two ends of the gear hobbing (5) are hexagonal structures. The two ends of the gear hobbing (5) are engaged with the two hexagonal slots (211).

3. The processing equipment for producing helical gears according to claim 2, characterized in that, The inner side of the transverse seat (24) has two adjustment slots (25), and each adjustment slot (25) has a limit rod (27) fixedly installed in it. Each limit rod (27) has an adjustment block (26) slidably installed on its outer side. The two adjustment blocks (26) are fixedly installed with the two clamping plates (28). Two push rod motors (212) are fixedly installed on the outer side of the transverse seat (24). The output shafts of the two push rod motors (212) are fixedly installed with the outer side of the two clamping plates (28).

4. The processing equipment for producing helical gears according to claim 1, characterized in that, The gear blank support mechanism (3) includes a rotating rod (31), which is rotatably mounted on the top of the workbench (1) via a bearing. A servo motor (35) is fixedly mounted on the bottom of the workbench (1). The output shaft of the servo motor (35) is fixedly mounted to the bottom end of the rotating rod (31). A circular plate (32) is fixedly mounted on the top of the rotating rod (31). A support plate (33) is mounted on the top of the circular plate (32) via screws. A convex positioning block (34) is fixedly mounted at the center of the top of the support plate (33). The gear blank (6) is placed on the top of the support plate (33) and positioned by the convex positioning block (34).

5. The processing equipment for producing helical gears according to claim 1, characterized in that, The gear blank clamping mechanism (4) includes two electric cylinders (42), both of which are fixedly installed at the bottom of the workbench (1). The top of the two electric cylinders (42) is fixedly installed on the same top plate (41). A negative pressure pump (43) is installed on the top of the top plate (41). A bend (44) is connected to the negative pressure pump (43). A hollow ring (47) is connected to the bottom of the bend (44). The hollow ring (47) is fixedly installed on the top of the top plate (41). The top plate (41) is located directly above the circular plate (32). Multiple negative pressure ports (48) are provided at the bottom of the hollow ring (47). A solenoid valve (46) is provided on the bend (44). A negative pressure gauge (45) is provided on the bend (44).

6. The processing equipment for producing helical gears according to claim 1, characterized in that, The top of the workbench (1) has two ball grooves (12), and the bottom of the slide (22) has two (221) embedded in it. The two (221) are slidably connected to the inner wall of the two ball grooves (12).

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