Numerical control gear shaper

Abstract

The invention relates to the technical field of numerical control machine tools, in particular to a numerical control gear shaper which comprises a workbench, a machine body is arranged on the workbench, a rotating disc is further arranged on the workbench corresponding to the machine body, the rotating disc is rotationally connected with the workbench, a PLC motor is arranged on the workbench corresponding to the rotating disc, and the PLC motor is used for controlling the rotating disc to rotate. A slotting cutter is arranged in the machine body, the slotting cutter is connected into the machine body in a sliding mode, the slotting cutter moves in the vertical direction of the machine body, a deviation connecting rod mechanism is further arranged in the machine body and comprises a driving rod and a transmission rod, one end of the transmission rod is hinged to the driving rod, and the other end of the transmission rod is hinged to the machine body. The other end of the transmission rod is in transmission connection with the slotting cutter, the middle of the transmission rod is hinged to the machine body, the driving rod is used for driving the transmission rod to swing, and the transmission rod is used for driving the slotting cutter to move up and down. Efficient and accurate gear shaping machining can be achieved, and accurate rotation of the rotary table is achieved through control of the PLC motor.

Description

Technical Field

[0001] The invention relates to the technical field of numerically controlled machine tools, and in particular to a numerically controlled gear shaping machine. Background Art

[0002] At present, gear processing equipment is widely used in the automotive industry. With the continuous improvement of industrial automation, the requirements for gear accuracy and production efficiency are also increasing. Although traditional mechanically controlled gear shaping machines have the advantage of low cost, they are difficult to meet the needs of modern manufacturing in terms of high precision and high efficiency. When shaping gears, the gear shaping cutter performs reciprocating cutting motion up and down, and rolls relative to the workpiece at the same time.

[0003] The main problem with mechanical control methods is that they cannot achieve precise speed regulation and positioning, especially under high-speed operation conditions, they are prone to vibration and wear, which reduces machining accuracy and tool life. Summary of the invention

[0004] In order to solve the main problem of mechanical control methods under the existing technology, which is the inability to achieve accurate speed regulation and positioning, especially the easy occurrence of vibration and wear under high-speed operation conditions, resulting in reduced processing accuracy and tool life, the present application provides a CNC gear shaping machine, and the specific solution is as follows.

[0005] A CNC gear shaping machine comprises a workbench, a body is arranged on the workbench, a turntable is arranged on the workbench corresponding to the body, the turntable is rotatably connected to the workbench, a PLC motor is arranged on the workbench corresponding to the turntable, and the PLC motor is used to control the rotation of the turntable; A gear shaping cutter is arranged in the machine body, and the gear shaping cutter is slidably connected in the machine body. The gear shaping cutter moves along the vertical direction of the machine body. A deflection connecting rod mechanism is also arranged in the machine body, and the deflection connecting rod mechanism includes a driving rod and a transmission rod. One end of the transmission rod is hinged to the driving rod, and the other end of the transmission rod is transmission-connected to the gear shaping cutter. The middle part of the transmission rod is hinged to the machine body. The driving rod is used to drive the transmission rod to swing, and the transmission rod is used to drive the gear shaping cutter to move up and down.

[0006] By adopting the above technical solution, the CNC gear shaping machine can achieve efficient and accurate gear shaping processing. The turntable can achieve precise rotation through the control of the PLC motor, and the gear shaping cutter can accurately cut the workpiece on the turntable by sliding up and down along the vertical direction of the machine body. The setting of the biased connecting rod mechanism can ensure that the gear shaping cutter moves stably and reliably. The articulation between the drive rod and the transmission rod further ensures that the gear shaping cutter can accurately move up and down when the transmission rod swings, thereby improving the processing accuracy and reducing the vibration of the gear shaping cutter during movement. This technical solution effectively improves the degree of automation and processing efficiency in the gear shaping process, while ensuring the processing quality.

[0007] Optionally, the deflection linkage mechanism also includes a driving wheel, which is rotatably connected to the body, and one end of the driving rod away from the transmission rod is fixedly connected to the driving wheel, and the driving rod is fixed at a position of the driving wheel away from the center of the circle.

[0008] By adopting the above technical solution, the introduction of the driving wheel enables the driving rod to drive the transmission rod to swing in a more stable manner, thereby achieving a more stable and accurate up and down movement of the gear shaping cutter. Since the driving rod is fixed at a position away from the center of the driving wheel, it can provide a greater torque during the rotation of the driving wheel, thereby enhancing the stability of the swing of the transmission rod and the accuracy of the gear shaping cutter movement, thereby improving the efficiency and quality of the gear shaping process.

[0009] Optionally, the machine body is provided with a cutter cylinder aligned with the gear shaping cutter, the gear shaping cutter is slidably connected in the cutter cylinder, and the interior of the cutter cylinder is communicated with the interior of the machine body.

[0010] By adopting the above technical solution, the gear shaping cutter can slide stably in the cutter barrel to achieve precise processing. At the same time, the internal connection design between the inside of the cutter barrel and the inside of the machine body ensures the smoothness and stability of the processing process, thereby improving the working efficiency and reliability of the overall device.

[0011] Optionally, an elastic buffer is further provided at one end of the cutter cylinder away from the turntable, and the elastic buffer has a tendency to push the gear shaping cutter to move toward the turntable after being compressed.

[0012] By adopting the above technical solution, the elastic buffer member arranged at the end of the cutter barrel away from the turntable can generate a tendency to push the gear shaping cutter toward the turntable after being compressed, effectively improving the stability and reliability of the gear shaping process, reducing the processing error caused by impact, improving the processing accuracy and efficiency, and also reducing the vibration at the head of the gear shaping cutter, while assisting the gear shaping cutter to reset Optionally, the gear inserting cutter includes a cutter bar and a disc cutter head, wherein the disc cutter head is detachably connected to the bottom of the cutter bar, and the disc cutter head is provided with a plurality of grinding teeth, and the grinding teeth are equidistantly arranged along the disc cutter head.

[0013] By adopting the above technical scheme, the gear shaping cutter is composed of a cutter bar and a disc cutter head, and the disc cutter head is detachably connected to the bottom of the cutter bar, which is convenient for replacement and maintenance; the multiple equidistant grinding teeth arranged on the disc cutter head can evenly distribute the cutting force, and can grind adjacent rulers during processing, and is convenient for processing gears with small ruler spacing and small ruler size, further improving the processing accuracy and efficiency, and at the same time facilitating the processing of gears of different specifications.

[0014] Optionally, a plurality of clamping claws are further provided on the rotating disk, and the clamping claws are arranged at intervals along the circumference of the rotating disk, and the clamping claws are used to abut against the inner wall of the gear.

[0015] By adopting the above technical solution, the multiple clamps arranged on the turntable can be distributed at intervals along the circumference of the turntable and used to abut the inner wall of the gear, thereby achieving stable clamping of the gear, improving the positioning accuracy and stability during the processing, and facilitating the clamping of gears of different sizes, further improving convenience.

[0016] Optionally, the machine body is slidably connected to the workbench, a ball screw is provided on the workbench corresponding to the machine body, the ball screw is threadedly connected to the machine body, and the machine body can slide along the workbench when the ball screw rotates.

[0017] By adopting the above technical solution, the machine body can achieve precise lateral movement adjustment on the workbench, which makes it easier to process workpieces of different sizes. The threaded connection design between the ball screw and the machine body ensures that the machine body can slide smoothly and accurately along the workbench when the ball screw rotates. In addition, during the processing, when the tool needs to be withdrawn or fed, this structure enables the gear cutter to complete the corresponding action quickly and accurately, thereby ensuring the processing efficiency and workpiece surface quality, while reducing non-cutting time and improving overall work efficiency.

[0018] Optionally, a shower pipe is further provided on the machine body, and the shower pipe is used to spray coolant toward the gear.

[0019] By adopting the above technical solution, the shower pipe arranged on the machine body can spray coolant toward the gear, effectively reducing the temperature during the processing, increasing the service life of the gear shaping cutter, and ensuring the processing accuracy.

[0020] Optionally, the disc cutter head includes multiple cutting rings, which are slidably connected to adjacent cutting rings, and the diameter of the cutting ring located on the outside is larger than that of the cutting ring located on the inside. A blocking cylinder is also provided on the upper side of the disc cutter head on the gear inserting cutter, and the blocking cylinders are respectively provided on both sides of the gear inserting cutter. A blocking block is provided on the piston rod of the blocking cylinder, and the blocking block is used to abut the cutting ring.

[0021] By adopting the above technical solution, multiple cutter rings are set. When processing, the corresponding cutter ring is selected to be blocked by the blocking cylinder. When blocking, the outer cutter ring can abut the gear from the outside. At this time, the outer cutter ring is not restricted in displacement and will be lifted up after contacting the gear. Therefore, the gear can be pressed by the outer cutter ring, and the inner cutter ring is restricted in displacement, so that processing can be carried out normally, and tool change can be carried out more conveniently. During the tool change process, the blocking block can be aligned with the cutter ring that needs to be processed, and the outer cutter ring also has a certain limiting effect to improve processing stability.

[0022] Optionally, a support rod is also provided on the piston rod of the blocking cylinder, and the support rod is arranged perpendicularly to the piston rod. A mounting rod is provided on the support rod, and the mounting rod is arranged parallel to the piston rod. A magnet is provided on the end of the mounting rod away from the support rod. When the piston rod of the blocking cylinder moves in a direction away from the blocking cylinder, the magnet moves in a direction away from the disc cutter head.

[0023] By adopting the above technical solution, a mounting rod and a magnet are arranged on the support rod, so that the outer knife ring can be adsorbed when the outer knife ring is lifted up, thereby reducing the frequent up and down movement of the outer knife ring and improving the service life of the disc cutter head.

[0024] In summary, this application has at least the following beneficial effects: 1. The present application solves the main problem of the mechanical control method under the prior art, which is the inability to achieve accurate speed regulation and positioning, especially the easy generation of vibration and wear under high-speed operation conditions, resulting in reduced processing accuracy and tool life. The present application realizes automatic positioning and switching of the workpiece by setting a PLC motor to control the rotation of the turntable, improves processing efficiency, can accurately align the gear with the gear shaping cutter for processing, and accurately achieves speed regulation and positioning, thereby reducing the whole building and wear under high-speed operation conditions, improving processing accuracy, and increasing tool life.

[0025] 2. This application also uses a sliding connection design between the machine body and the workbench and the coordinated use of a ball screw, so that the machine body can move along the workbench, thereby enhancing the position adjustment function of the equipment, improving the processing accuracy and adaptability, and also realizing retracting and advancing the tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1It is a three-dimensional diagram of the first embodiment.

[0027] Figure 2 It is a cross-sectional view of the first embodiment.

[0028] Figure 3 It is a stereogram of the first embodiment, mainly used to show the position of the disc cutter head.

[0029] Figure 4 It is a cross-sectional view of the second embodiment, mainly used to show the position of the disc cutter head.

[0030] Description of reference numerals: 1. Workbench; 11. Turntable; 111. Gripper; 12. PLC motor; 13. Ball screw; 2. Machine body; 21. Gear shaping cutter; 211. Cutter bar; 212. Disc cutter head; 213. Grinding teeth; 22. Driving rod; 23. Transmission rod; 24. Driving wheel; 25. Cutter barrel; 251. Elastic buffer; 26. Shower pipe; 3. knife ring; 31. blocking cylinder; 311. blocking block; 32. support rod; 33. mounting rod; 34. magnet. DETAILED DESCRIPTION

[0031] The present application is further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0032] Embodiment 1 A CNC gear shaping machine, such as Figure 1 and Figure 2 As shown, it includes a workbench 1, on which a body 2 is arranged, and it is characterized in that: a turntable 11 is also arranged on the workbench 1 corresponding to the body 2, and the turntable 11 is rotatably connected to the workbench 1, and a PLC motor 12 is arranged on the workbench 1 corresponding to the turntable 11, and the PLC motor 12 is used to control the rotation of the turntable 11. In specific implementation, the PLC motor 12 can be written into a program, and according to the requirements, the turntable 11 can be controlled to rotate with higher precision, and the position of the gear can be adjusted more accurately when the gear is geared, so as to reduce the situation that the misalignment affects the processing accuracy, and also reduce the situation that the misalignment processing generates vibration.

[0033] like Figure 1 and Figure 2As shown, a gear shaping cutter 21 is provided in the machine body 2, and the gear shaping cutter 21 is slidably connected in the machine body 2. The gear shaping cutter 21 moves along the vertical direction of the machine body 2. A deflection connecting rod mechanism is also provided in the machine body 2. The deflection connecting rod mechanism includes a driving rod 22 and a transmission rod 23. One end of the transmission rod 23 is hinged to the driving rod 22, and the other end of the transmission rod 23 is transmission-connected to the gear shaping cutter 21. The middle part of the transmission rod 23 is hinged to the machine body 2. The driving rod 22 is used to drive the transmission rod 23 to swing, and the transmission rod 23 is used to drive the gear shaping cutter 21 to move up and down. The deflection connecting rod mechanism also includes a driving wheel 24, which is rotatably connected in the machine body 2, and one end of the driving rod 22 away from the transmission rod 23 is fixedly connected to the driving wheel 24, and the driving rod 22 is fixed at a position away from the center of the driving wheel 24. In specific implementation, the gear shaping cutter 21 can be driven to move up and down by the deflection connecting rod mechanism, thereby realizing the gear shaping processing of the gear.

[0034] like Figure 1 and Figure 2 As shown, the machine body 2 is provided with a knife barrel 25 aligned with the gear shaping cutter 21, the gear shaping cutter 21 is slidably connected in the knife barrel 25, and the interior of the knife barrel 25 is connected to the interior of the machine body 2. An elastic buffer 251 is also provided at one end of the knife barrel 25 away from the rotating disk 11, and the elastic buffer 251 has a tendency to push the gear shaping cutter 21 to move toward the rotating disk 11 after being compressed. In specific implementation, the elastic buffer 251 includes a spring, which can not only assist the reset of the gear shaping cutter 21, but also buffer vibration and increase the service life.

[0035] like Figure 1 and Figure 3 As shown, the gear shaping cutter 21 includes a cutter bar 211 and a disc cutter head 212. The disc cutter head 212 is detachably connected to the bottom of the cutter bar 211. The disc cutter head 212 is provided with a plurality of grinding teeth 213. The grinding teeth 213 are arranged at equal intervals along the disc cutter head 212. In specific implementation, the cutter bar 211 is slidably connected to the cutter cylinder 25, and the disc cutter head 212 can move up and down with the cutter bar 211, thereby realizing processing.

[0036] like Figure 1 As shown, the turntable 11 is also provided with a plurality of clamping jaws 111, which are arranged at intervals along the circumference of the turntable 11, and the clamping jaws 111 are used to abut against the inner wall of the gear. In specific implementation, three clamping jaws 111 are provided and the three clamping jaws 111 move synchronously, the clamping jaws 111 are driven by a cylinder, the clamping jaws 111 are arranged in a fan shape and there are three of them, and the clamping jaws 111 can move outward at the same time, so that the clamping jaws 111 can abut against the inner wall of the gear at the same time, thereby realizing the positioning of the gear.

[0037] like Figure 1 and Figure 2As shown, the machine body 2 is slidably connected with the workbench 1, and a ball screw 13 is provided on the workbench 1 corresponding to the machine body 2. The ball screw 13 is threadedly connected to the machine body 2, and the machine body 2 can slide along the workbench 1 when the ball screw 13 rotates. In specific implementation, the ball screw 13 is driven by a motor, and a slide groove is provided on the workbench 1 corresponding to the machine body 2, and the machine body 2 is embedded in the slide groove. Since the machine body 2 cannot rotate with the ball screw 13, the ball screw 13 can drive the machine body 2 to move along the workbench 1 when it rotates, so that the machine body 2 can complete the action of feeding and retracting, further improving the convenience of replacing gears and reducing the interference with the gear shaping cutter 21 when replacing gears.

[0038] like Figure 1 and Figure 2 As shown, a shower pipe 26 is also provided on the machine body 2, and the shower pipe 26 is used to spray coolant toward the gear. In specific implementation, the shower pipe 26 is connected to a water pipe, and the shower pipe 26 can spray clean water as coolant, and at the same time clean the debris generated by the gear shaping, thereby reducing overheating during gear shaping, and also reducing the accumulation of debris on the gear that affects processing.

[0039] Working principle: According to the gear size, write the corresponding PLC program, fix the gear on the turntable 11 and drive it to rotate according to the written program. At this time, with the gear shaping cutter 21, the gear can be shaped up and down at high speed to complete the gear tooth processing.

[0040] Embodiment 2 like Figure 4 As shown, the main difference between the second embodiment and the first embodiment is that the disc cutter head 212 of the second embodiment includes a plurality of cutter rings 3, and the cutter rings 3 are slidably connected with the adjacent cutter rings 3, and the diameter of the cutter ring 3 located on the outside is larger than that of the cutter ring 3 located on the inside. The gear shaping cutter 21 is also provided with a blocking cylinder 31 on the upper side of the disc cutter head 212, and the blocking cylinders 31 are respectively provided on both sides of the gear shaping cutter 21, and a blocking block 311 is provided on the piston rod of the blocking cylinder 31, and the blocking block 311 is used to abut the cutter ring 3. In specific implementation, during processing, the function of each cutter ring 3 is the same as that of the disc cutter head 212 in the first embodiment, and the corresponding cutter ring 3 is selected to be blocked by the blocking cylinder 31. When blocking, the outer cutter ring 3 can abut the gear from the outside, and at this time, the outer cutter ring 3 is not restricted in displacement, and will be lifted up after contacting the gear, so the gear can be pressed by the outer cutter ring 3, and the inner cutter ring 3 is restricted in displacement, and processing can be performed normally.

[0041] like Figure 4As shown, a support rod 32 is also provided on the piston rod of the blocking cylinder 31, and the support rod 32 is arranged perpendicular to the piston rod. A mounting rod 33 is provided on the support rod 32, and the mounting rod 33 is arranged parallel to the piston rod. A magnet 34 is provided on one end of the mounting rod 33 away from the support rod 32. When the piston rod of the blocking cylinder 31 moves in a direction away from the blocking cylinder 31, the magnet 34 moves in a direction away from the disc cutter head 212. In specific implementation, when the outer cutter ring 3 is lifted up, the outer cutter ring 3 is adsorbed, thereby reducing the frequent up and down movement of the outer cutter ring 3, and improving the service life of the disc cutter head 212. The sucked up cutter ring 3 still has a certain pressing effect.

[0042] Working principle: The basic working principle is the same as that of embodiment 1, but a cutter ring 3 is added. Different cutter rings 3 can be selected for processing according to the size of the gear, thereby further improving the convenience of tool change. At the same time, the gear can be pressed by the cutter ring 3, which can further improve the stability of processing.

[0043] The above are preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A CNC gear shaping machine, comprising a workbench (1), on which a body (2) is arranged, characterized in that: The workbench (1) is also provided with a turntable (11) corresponding to the machine body (2), the turntable (11) is rotatably connected to the workbench (1), and a PLC motor (12) is provided on the workbench (1) corresponding to the turntable (11), and the PLC motor (12) is used to control the rotation of the turntable (11); A gear shaping cutter (21) is arranged in the machine body (2), the gear shaping cutter (21) is slidably connected in the machine body (2), the gear shaping cutter (21) moves along the vertical direction of the machine body (2), and a deflection connecting rod mechanism is also arranged in the machine body (2), the deflection connecting rod mechanism comprises a driving rod (22) and a transmission rod (23), one end of the transmission rod (23) is hinged to the driving rod (22), the other end of the transmission rod (23) is transmission-connected to the gear shaping cutter (21), and the middle part of the transmission rod (23) is hinged to the machine body (2), the driving rod (22) is used to drive the transmission rod (23) to swing, and the transmission rod (23) is used to drive the gear shaping cutter (21) to move up and down.

2. A CNC gear shaping machine according to claim 1, characterized in that: The deflection link mechanism further comprises a driving wheel (24), wherein the driving wheel (24) is rotatably connected to the machine body (2), and one end of the driving rod (22) away from the transmission rod (23) is fixedly connected to the driving wheel (24), and the driving rod (22) is fixed at a position of the driving wheel (24) away from the center of a circle.

3. A CNC gear shaping machine according to claim 1, characterized in that: The machine body (2) is provided with a knife barrel (25) aligned with the gear shaping cutter (21); the gear shaping cutter (21) is slidably connected in the knife barrel (25); and the interior of the knife barrel (25) is communicated with the interior of the machine body (2).

4. A CNC gear shaping machine according to claim 3, characterized in that: An elastic buffer (251) is also provided at one end of the cutter cylinder (25) away from the rotary disk (11). The elastic buffer (251) has a tendency to push the gear shaping cutter (21) to move toward the rotary disk (11) after being compressed.

5. The CNC gear shaping machine according to claim 1, characterized in that: The gear shaping cutter (21) comprises a cutter bar (211) and a disc cutter head (212); the disc cutter head (212) is detachably connected to the bottom of the cutter bar (211); a plurality of grinding teeth (213) are provided on the disc cutter head (212); and the grinding teeth (213) are arranged at equal intervals along the disc cutter head (212).

6. A CNC gear shaping machine according to claim 5, characterized in that: The rotating disk (11) is also provided with a plurality of clamping claws (111), the clamping claws (111) are arranged at intervals along the circumference of the rotating disk (11), and the clamping claws (111) are used to abut against the inner wall of the gear.

7. The CNC gear shaping machine according to claim 1, characterized in that: The machine body (2) is slidably connected to the workbench (1); a ball screw (13) is provided on the workbench (1) corresponding to the machine body (2); the ball screw (13) is threadedly connected to the machine body (2); when the ball screw (13) rotates, the machine body (2) can slide along the workbench (1).

8. The CNC gear shaping machine according to claim 1, characterized in that: The machine body (2) is also provided with a shower pipe (26), and the shower pipe (26) is used to spray cooling liquid toward the gears.

9. The CNC gear shaping machine according to claim 5, characterized in that: The disc cutter head (212) comprises a plurality of cutter rings (3), the cutter rings (3) being slidably connected to adjacent cutter rings (3), the cutter rings (3) located on the outside having a larger diameter than the cutter rings (3) located on the inside, the gear shaping cutter (21) is further provided with a blocking cylinder (31) on the upper side of the disc cutter head (212), the blocking cylinders (31) being respectively provided on both sides of the gear shaping cutter (21), a blocking block (311) being provided on the piston rod of the blocking cylinder (31), the blocking block (311) being used to abut against the cutter ring (3).

10. A CNC gear shaping machine according to claim 9, characterized in that: A support rod (32) is also provided on the piston rod of the blocking cylinder (31), and the support rod (32) is arranged perpendicular to the piston rod. A mounting rod (33) is provided on the support rod (32), and the mounting rod (33) is arranged parallel to the piston rod. A magnet (34) is provided on one end of the mounting rod (33) away from the support rod (32). When the piston rod of the blocking cylinder (31) moves in a direction away from the blocking cylinder (31), the magnet (34) moves in a direction away from the disc cutter head (212).

Images