A high-precision gear hobbing machine that is convenient for gear alignment

Abstract

A high-precision gear hobbing machine that is convenient for gear alignment includes a platform, a mounting bracket arranged on the platform, a lifting mechanism arranged on the mounting bracket, a push-pull mechanism connected to the lifting mechanism, a gear hobbing mechanism arranged on the push-pull mechanism, and a gear fixing mechanism arranged on one side of the gear hobbing mechanism. The gear hobbing mechanism includes a first motor, a positioning column connected to the output end of the first motor, a hob arranged on the positioning column, a lifting cavity arranged in the positioning column, a longitudinal propulsion unit arranged in the lifting cavity, a plurality of telescopic channels passing through the positioning column, a transverse propulsion unit arranged in the telescopic channel, a mounting groove arranged on the inner wall of the hob, and an auxiliary vibration unit arranged in the mounting groove. The present invention uses the longitudinal propulsion unit to push the transverse propulsion unit to move in the telescopic channel, and then pushes the auxiliary vibration unit to vibrate in the mounting groove, thereby shaking off the debris on the hob and improving the gear hobbing accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of gear production equipment, in particular to a high-precision gear hobbing machine that is convenient for gear alignment. Background Art

[0002] Gear hobbing machine is the most widely used machine tool in gear processing machine tools. It can cut spur and helical cylindrical gears, and can also process worm wheels and sprockets, etc. Gear processing machine tools that use hobs to process spur, helical and herringbone cylindrical gears and worm wheels according to the development method can also process workpieces with various special tooth shapes such as splines and sprockets when using special hobs. Existing gear hobbing machines, such as a high-efficiency gear hobbing machine that is easy to align teeth, announced by patent number CN209698199U, include a gear hobbing machine body, a hydraulic cylinder is fixedly installed on the left side of the gear hobbing machine body, a baffle is fixedly installed on the left side of the hydraulic cylinder, a first slide rail is fixedly installed on the right side of the baffle and located at the bottom of the hydraulic cylinder, a first slider is fixedly installed on the bottom of the gear hobbing machine body, and the first slider is slidably connected to the first slide rail, a second slide rail is fixedly installed on the right side of the gear hobbing machine body, and a top seat is fixedly installed on the top of the right side of the gear hobbing machine body. The high-efficiency gear hobbing machine that is convenient for gear alignment controls the extension and contraction of the hydraulic cylinder so that the gear hobbing machine body can move left and right by sliding the first slider left and right on the first slide rail, thereby driving the hob to move left and right. The entire device is more convenient and quick to operate, which is convenient for gear alignment, improves the working efficiency of the entire device, and improves the processing accuracy of the gear. However, during the gear hobbing process of the gear hobbing machine, the debris remaining on the hob is easy to enter the gear together with the hob, affecting the accuracy of the gear. Summary of the invention

[0003] The object of the present invention is to provide a high-precision gear hobbing machine which is convenient for gear alignment, so as to solve the problems raised in the background technology.

[0004] The technical solution of the present invention is: a high-precision gear hobbing machine that is easy to align teeth, including a platform, a mounting bracket arranged on the platform, a lifting mechanism arranged on the mounting bracket, a push-pull mechanism connected to the lifting mechanism, a gear hobbing mechanism arranged on the push-pull mechanism, and a gear fixing mechanism arranged on one side of the gear hobbing mechanism. The gear hobbing mechanism includes a first motor, a positioning column connected to the output end of the first motor, a hob arranged on the positioning column, a lifting cavity arranged in the positioning column, a longitudinal propulsion part arranged in the lifting cavity, a plurality of telescopic channels that penetrate the positioning column and are connected to the lifting cavity, a transverse propulsion part arranged in the telescopic channel, a mounting groove arranged on the inner wall of the hob corresponding to the telescopic channel, and an auxiliary vibration part arranged in the mounting groove.

[0005] Preferably, the longitudinal propulsion portion includes a telescopic cylinder arranged at the top of the inner wall of the lifting chamber, a connecting block connected to the telescopic cylinder, a first arc-shaped protrusion arranged at intervals on the connecting block, a guide groove opened at the bottom of the connecting block, and a guide column arranged at the bottom of the inner wall of the lifting chamber and slidably connected to the guide groove.

[0006] Preferably, the lateral propulsion portion includes an annular groove connected to the telescopic channel, a force-bearing column arranged in the telescopic channel, a spring sleeved on the force-bearing column and respectively connected to the force-bearing column and the annular groove, and a limit plate arranged along the force-bearing column for limiting the force-bearing column.

[0007] Preferably, the force-bearing column has a second arc-shaped protrusion at one end located in the lifting cavity, and the second arc-shaped protrusion is slidably connected to the first arc-shaped protrusion.

[0008] Preferably, the auxiliary vibration part includes a toggle plate symmetrically arranged at the bottom of the mounting groove, a swing plate arranged between the toggle plate and the inner wall of the mounting groove, an impact ball arranged at the end of the swing plate, a guide seat arranged at the bottom of the mounting groove and between the toggle plates, a sliding rod slidably connected to the guide seat, a first inclined block arranged in the middle of the sliding rod, a second inclined block symmetrically arranged on the toggle plate and slidably connected to the first inclined block, and a pressure plate arranged at the end of the sliding rod away from the guide seat.

[0009] Preferably, a lateral section is provided in the middle of the toggle plate, the lateral section is arc-shapedly recessed toward the corresponding direction of the swing plate, and the second inclined block is provided on the lateral section.

[0010] Preferably, first inclined surfaces are provided on both sides of the first inclined block, and a second inclined surface slidably connected to the first inclined surfaces is provided on the second inclined block.

[0011] Preferably, an active cavity and a through hole communicating with the active cavity are provided in the guide seat, the slide rod enters the active cavity through the through hole, and a limit block is provided at one end of the slide rod entering the active cavity.

[0012] Preferably, the cross section of the sliding rod is rectangular.

[0013] The beneficial effects of the present invention are:

[0014] Compared with the prior art, the present invention uses the longitudinal propulsion part to push the transverse propulsion part to move in the telescopic channel, and then pushes the auxiliary vibration part to vibrate in the installation groove, so as to shake off the debris on the hob and improve the hobbing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention;

[0016] Figure 2 It is a schematic diagram of the hob;

[0017] Figure 3 It is a schematic diagram of the auxiliary vibration part;

[0018] Figure 4 for Figure 2 The enlarged schematic diagram at A in the middle; DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the accompanying drawings by way of embodiments.

[0020] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

[0021] Examples, such as Figure 1-4As shown, a high-precision gear hobbing machine convenient for gear alignment comprises a platform 1, a mounting bracket 2 arranged on the platform 1, a lifting mechanism 3 arranged on the mounting bracket 2, a push-pull mechanism 4 connected to the lifting mechanism 3, a gear hobbing mechanism 5 arranged on the push-pull mechanism 4, and a gear fixing mechanism 6 arranged on one side of the gear hobbing mechanism 5. The lifting mechanism 3 comprises a lifting motor 301 arranged on the mounting bracket 1, a lifting ball screw 302 connected to the lifting motor 301, a lifting slider 303 screwed to the lifting ball screw 302, and a lifting guide rail 304 matched with the lifting slider 303; the lifting motor drives the lifting ball screw to rotate, so that the lifting slider moves up and down, and is guided by two lifting guide rails to achieve position adjustment. The push-pull mechanism 4 comprises a transverse motor 401 arranged on the lifting slider 303, a transverse ball screw 402 connected to the transverse motor 401, a transverse slider 403 screwed to the transverse ball screw 402, and a transverse guide rail 404 matched with the transverse slider 403. The transverse motor drives the transverse ball screw to rotate, so that the transverse slider moves transversely, and is guided by two transverse guide rails to achieve position adjustment. The gear fixing mechanism 6 includes a motor 601, a turntable 602 connected to the output end of the motor 601, a fixing rod 603 arranged on the turntable 602, and a nut 604 screwed to the fixing rod 603. The gear 7 is fixed on the turntable 602 by rotating the nut 604. The gear hobbing mechanism 5 includes a first motor 501, a positioning column 502 connected to the output end of the first motor 501, a hob 503 arranged on the positioning column 502, and a lifting cavity arranged in the positioning column 502. 504, a longitudinal propulsion portion 505 arranged in the lifting chamber 504, a plurality of telescopic channels 506 penetrating the positioning column 502 and connected to the lifting chamber 504, a transverse propulsion portion 507 arranged in the telescopic channel 506, a mounting groove 508 arranged on the inner wall of the hob 503 corresponding to the telescopic channel 506, and an auxiliary vibration portion 509 arranged in the mounting groove 508. The present invention pushes the transverse propulsion portion 507 to move in the telescopic channel 506 through the longitudinal propulsion portion 505, and then pushes the auxiliary vibration portion 509 to vibrate in the mounting groove 508, thereby shaking off the debris on the hob 503 and improving the gear rolling accuracy.

[0022] Furthermore, the longitudinal propulsion portion 505 includes a telescopic cylinder 50501 arranged at the top of the inner wall of the lifting chamber 504, a connecting block 50502 connected to the telescopic cylinder 50501, a first arc-shaped protrusion 50503 arranged at intervals on the connecting block 50502, a guide groove 50504 opened at the bottom of the connecting block 50502, and a guide column 50505 arranged at the bottom of the inner wall of the lifting chamber 504 and slidably connected to the guide groove 50504.

[0023] Further, the lateral propulsion portion 507 includes an annular groove 50701 communicated with the telescopic channel 506, a force-bearing column 50702 provided in the telescopic channel 506, a spring 50703 sleeved on the force-bearing column 50702 and respectively connected to the force-bearing column 50702 and the annular groove 50701, and a limiting plate 50704 provided along the force-bearing column 50702 for limiting the force-bearing column 50702. Preferably, The diameter of the annular groove 50701 in this embodiment is larger than the diameter of the telescopic channel 506. The limiting plate 50704 and the annular groove 50701 are slidably connected. After the first arc-shaped protrusion 50503 contacts the force-bearing column 50702, it pushes the force-bearing column 50702 to move toward the auxiliary vibration part 509. At this time, the spring 50703 is stretched. After the first arc-shaped protrusion 50503 separates from the force-bearing column 50702, the force-bearing column 50702 is reset under the action of the spring.

[0024] Furthermore, the load-bearing column 50702 has a second arc-shaped protrusion 50705 at one end located in the lifting chamber 504, and the second arc-shaped protrusion 50705 is slidably connected to the first arc-shaped protrusion 50503. During the up and down movement of the first arc-shaped protrusion 50503, the second arc-shaped protrusion 50705 slides relative to the second arc-shaped protrusion 50705, pushing the second arc-shaped protrusion 50705 to move toward the auxiliary vibration part 509.

[0025] Furthermore, the auxiliary vibration part 509 includes a toggle plate 50901 symmetrically arranged at the bottom of the mounting groove 508, a swing plate 50902 arranged between the toggle plate 50901 and the inner wall of the mounting groove 508, an impact ball 50903 arranged at the end of the swing plate 50902, a guide seat 50904 arranged at the bottom of the mounting groove 508 and between the toggle plates 50901, a slide bar 50905 slidably connected to the guide seat 50904, a first inclined block 50906 arranged in the middle of the slide bar 50905, and a first inclined block 50906 symmetrically arranged on the toggle plate 50901. And the second inclined block 50907 is slidably connected to the first inclined block 50906, and the pressure plate 50908 is arranged on the end of the slide rod 50905 away from the guide seat 50904. After the force column 50702 hits the pressure plate 50908, the slide rod 50905 moves toward the guide seat 50904 and drives the first inclined block 50906 to move, so that the first inclined block 50906 and the second inclined block 50907 slide relative to each other, pushing the swing plate 50902 to tilt toward the inner wall of the installation groove 508, and then the impact ball 50903 hits the inner wall of the installation groove 508, so that the roller 503 is subjected to longitudinal vibration.

[0026] Furthermore, a lateral section 50909 is provided in the middle of the toggle plate 50901 , and the lateral section 50909 is arc-shapedly recessed toward the corresponding direction of the swing plate 50902 , and the second inclined block 50907 is provided on the lateral section 50909 .

[0027] Furthermore, first inclined surfaces 50910 are provided on both sides of the first inclined block 50906, and second inclined surfaces 50911 slidably connected to the first inclined surfaces 50910 are provided on the second inclined block 50907. The slide bar 50905 moves toward the direction close to the guide seat 50904 and drives the first inclined block 50906 to move, so that the first inclined surface 50910 and the second inclined surface 50911 slide relative to each other. At this time, the two toggle plates 50901 tilt in opposite directions. Under the elastic action of the toggle plate 50901, the second inclined block 50907 pushes the first inclined block 50906, so that the slide bar 50905 moves away from the guide seat 50904, thereby resetting the slide bar 50905.

[0028] Furthermore, an active cavity 50912 and a through hole 50913 connected to the active cavity 50912 are provided in the guide seat 50904, and the slide rod 50905 enters the active cavity 50912 through the through hole 50913. A limit block 50914 is provided at one end of the slide rod 50905 entering the active cavity 50912. Preferably, the limit block 50914 is slidably connected to the inner wall of the active cavity 50912, and the slide rod 50905 is slidably connected to the through hole 50913. The slide rod 50905 moves in the active cavity 50912 and hits the bottom of the active cavity 50912, thereby causing the roller 503 to vibrate laterally.

[0029] Furthermore, in order to ensure the stability of the sliding rod 50905 when it moves, so that the first inclined surface 50910 and the second inclined surface 50911 slide relative to each other, the cross-section of the sliding rod 50905 is rectangular.

Claims

1. A high-precision gear hobbing machine for facilitating gear alignment, comprising a platform (1), a mounting bracket (2) arranged on the platform (1), a lifting mechanism (3) arranged on the mounting bracket (2), a push-pull mechanism (4) connected to the lifting mechanism (3), a gear hobbing mechanism (5) arranged on the push-pull mechanism (4), and a gear fixing mechanism (6) arranged on one side of the gear hobbing mechanism (5), characterized in that: The gear hobbing mechanism (5) comprises a first motor (501), a positioning column (502) connected to an output end of the first motor (501), a hobbing cutter (503) arranged on the positioning column (502), a lifting cavity (504) arranged in the positioning column (502), a longitudinal propulsion portion (505) arranged in the lifting cavity (504), a plurality of telescopic channels (506) penetrating the positioning column (502) and communicating with the lifting cavity (504), and a plurality of longitudinal propulsion portions (505) arranged in the telescopic channels (506). ), a mounting groove (508) provided on the inner wall of the roller cutter (503) corresponding to the telescopic channel (506), and an auxiliary vibration part (509) provided in the mounting groove (508), wherein the longitudinal propulsion part (505) pushes the transverse propulsion part (507) to move in the telescopic channel (506), thereby pushing the auxiliary vibration part (509) to vibrate in the mounting groove (508), thereby shaking off the debris on the roller cutter (503); The longitudinal propulsion unit (505) comprises a telescopic cylinder (50501) disposed at the top of the inner wall of the lifting chamber (504), a connecting block (50502) connected to the telescopic cylinder (50501), a first arc-shaped protrusion (50503) disposed at intervals on the connecting block (50502), a guide groove (50504) provided at the bottom of the connecting block (50502), and a guide column (50505) disposed at the bottom of the inner wall of the lifting chamber (504) and slidably connected to the guide groove (50504); The transverse propulsion portion (507) comprises an annular groove (50701) communicating with the telescopic channel (506), a force-bearing column (50702) arranged in the telescopic channel (506), a spring (50703) sleeved on the force-bearing column (50702) and respectively connected to the force-bearing column (50702) and the annular groove (50701), and a limiting plate (50704) arranged along the force-bearing column (50702) for limiting the position of the force-bearing column (50702); The auxiliary vibration part (509) includes a toggle plate (50901) symmetrically arranged at the bottom of the installation groove (508), a swing plate (50902) arranged between the toggle plate (50901) and the inner wall of the installation groove (508), an impact ball (50903) arranged at the end of the swing plate (50902), a guide seat (50904) arranged at the bottom of the installation groove (508) and between the toggle plates (50901), a slide rod (50905) slidably connected to the guide seat (50904), a first inclined block (50906) arranged in the middle of the slide rod (50905), a second inclined block (50907) symmetrically arranged on the toggle plate (50901) and slidably connected to the first inclined block (50906), and a pressure plate (50908) arranged at the end of the slide rod (50905) away from the guide seat (50904).

2. A high-precision gear hobbing machine that is convenient for gear alignment according to claim 1, characterized in that: The force-bearing column (50702) is provided with a second arc-shaped protrusion (50705) at one end located in the lifting chamber (504), and the second arc-shaped protrusion (50705) is slidably connected to the first arc-shaped protrusion (50503).

3. The high-precision gear hobbing machine for facilitating gear alignment according to claim 1, characterized in that: A lateral section (50909) is provided in the middle of the toggle plate (50901), and the lateral section (50909) is arc-shapedly recessed in the direction of the corresponding swing plate (50902), and the second inclined block (50907) is provided on the lateral section (50909).

4. The high-precision gear hobbing machine for facilitating gear alignment according to claim 1, characterized in that: The first inclined block (50906) is provided with first inclined surfaces (50910) on both sides, and the second inclined block (50907) is provided with a second inclined surface (50911) slidably connected to the first inclined surface (50910).

5. The high-precision gear hobbing machine for facilitating gear alignment according to claim 1, characterized in that: The guide seat (50904) is provided with an active cavity (50912) and a through hole (50913) connected to the active cavity (50912); the sliding rod (50905) enters the active cavity (50912) through the through hole (50913); and a limit block (50914) is provided at one end of the sliding rod (50905) entering the active cavity (50912).

6. The high-precision gear hobbing machine for facilitating gear alignment according to claim 1, characterized in that: The cross section of the sliding rod (50905) is rectangular.

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