CN111283272A - Miniature gear hobbing machine - Google Patents

Abstract

The invention discloses a micro gear hobbing machine, which comprises a base, a clamping unit, a first moving unit, a second moving unit and a rotating unit, wherein the clamping unit, the first moving unit, the second moving unit and the rotating unit are arranged on the base, the clamping unit comprises two groups of clamp mechanisms, when the micro gear hobbing machine works, the distance between the two groups of clamp mechanisms is adjusted, a workpiece to be machined is clamped by the clamp mechanisms, the first moving unit can drive the second moving unit and the rotating unit to move back and forth on the base, the position of a machining cutter is adjusted, the rotating unit can drive the second moving unit to swing back and forth so as to adjust the angle of the cutter, and the second moving unit can drive the machining cutter to slide up and down, so that eight-axis linkage is realized, the machining precision is improved, the position is machined at one time, and the machining efficiency is improved.

Description

A miniature gear hobbing machine

technical field

The invention relates to the technical field of machining equipment, in particular to a miniature gear hobbing machine.

Background technique

Gear is a mechanical element with teeth on the rim that can continuously mesh to transmit motion and power. It is a mechanical part with teeth that can mesh with each other. Gear transmission is the most widely used transmission form in mechanical transmission, and its transmission is relatively accurate. High efficiency, compact structure, reliable operation and long service life. With the continuous development of the intelligent era, miniaturization of products prevails, and micro gears are widely used in clocks, home appliances, medical machines, automobiles, and automation industries.

Gear hobbing machine is the most widely used machine tool in gear processing machine tools. On the gear hobbing machine, spur gears, helical gears can be cut, and worm gears, sprockets, etc. can also be processed. Gear machining machine for herringbone cylindrical gears and worm gears. The micro gear hobbing machine can be used to process small module micro gear parts, but the existing micro gear hobbing machine needs to convert parts, the processing efficiency is low, and the products with high processing precision cannot meet the processing requirements.

Therefore, how to change the status quo of the low processing efficiency and processing accuracy of the micro gear hobbing machine in the prior art has become an urgent problem to be solved by those skilled in the art.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a micro gear hobbing machine, so as to solve the problems existing in the above-mentioned prior art and improve the processing precision and processing efficiency of the micro gear hobbing machine.

In order to achieve the above object, the present invention provides the following solutions: the present invention provides a miniature gear hobbing machine, comprising a base and a card mounting unit, a first motion unit, a second motion unit, and a rotating unit arranged on the base, and the mounting The card unit includes two sets of clamp mechanisms, the two sets of clamp mechanisms are arranged oppositely, the clamp mechanisms are slidably arranged on the base, and the two sets of clamp mechanisms cooperate to clamp the workpiece to be processed; the second The moving unit and the rotating unit are connected with the first moving unit, the first moving unit is slidably arranged on the base, and two sets of the clamp mechanisms are respectively arranged on both sides of the first moving unit , the first moving unit can drive the second moving unit and the rotating unit to slide back and forth, the second moving unit is connected with the rotating unit, and the rotating unit can drive the second moving unit to swing back and forth , the swing axis of the rotating unit is parallel to the plane where the base is located, the second moving unit can fix the machining tool, the second moving unit can drive the machining tool to slide back and forth, the first moving unit, the The relative sliding direction of the base is perpendicular to the relative sliding direction of the second moving unit and the rotating unit.

Preferably, the base is provided with a first slide rail and a second slide rail, the two sets of the clamp mechanisms are respectively connected with a first support plate, and the first support plate is slidably arranged on the first slide rail Above, the first movement unit is connected with a second support plate, the second support plate is slidably arranged on the second slide rail, and the first slide rail is perpendicular to the second slide rail.

Preferably, the clamp mechanism can be detachably connected to the first support plate, the first movement unit and the second support plate, and the clamp mechanism is connected to the first support plate, the first support plate and the first support plate. The connection position of the moving unit and the second support plate can be adjusted.

Preferably, the rotating unit includes a driver and a rotating base, the driver is connected to the rotating base through a coupling, the driver can drive the rotating base to rotate, and the second moving unit is connected to the rotating base. connected, and a scale is provided on the rotating seat.

Preferably, the second moving unit includes a fixed seat, a third support plate and a tool seat, the fixed seat is connected with the rotating seat, and the third support plate is slidably arranged on the fixed seat, so The tool seat is connected to the third support plate, and the tool seat can fix the machining tool; the tool seat includes a main shaft and a hob mandrel, the main shaft can drive the hob mandrel to connect, and the hob mandrel is connected. The mandrel can hold the machining tool.

Preferably, the second movement unit further includes an over-cooling block, an over-cooling pipe and a cutting cooling pipe, the over-cooling block communicates with the cutting cooling pipe through the over-cooling pipe, and the over-cooling block can be connected to the cutting cooling pipe. The external cutting liquid is communicated, and the cutting cooling pipe can deliver the cutting liquid to the machining tool and the machining workpiece, and the cutting cooling pipe is a flexible pipe.

Preferably, both the tool holder and the clamp mechanism are provided with a casing, a frameless motor is arranged in the casing, a circulating flow channel is arranged between the casing and the frameless motor, and the circulating flow channel is connected to the outside The cooling medium is connected.

Preferably, one set of the clamp mechanisms is a thimble-type clamp, and the other group of the clamp mechanisms is a forward push-type collet clamp.

Preferably, the clamp mechanism, the first motion unit, the second motion unit and the rotation unit are all provided with a limit sensor and a zero return sensor.

Preferably, an iron scrap baffle and an iron scrap baffle are further arranged on the base, and the iron scrap baffle is arranged on the clamp mechanism, the first movement unit, the second movement unit and the rotation On one side of the unit, the iron scrap deflector is arranged at the bottom of the processing unit.

Compared with the prior art, the present invention achieves the following technical effects: the micro gear hobbing machine of the present invention includes a base and a card mounting unit, a first motion unit, a second motion unit, and a rotating unit arranged on the base, and the card mounting unit includes two groups of Clamp mechanism, two sets of clamp mechanisms are arranged oppositely, the clamp mechanisms are slidably arranged on the base, and the two sets of clamp mechanisms cooperate to clamp the workpiece to be processed; the second movement unit and the rotation unit are connected with the first movement unit, and the first movement unit The unit is slidably arranged on the base, and the two sets of clamp mechanisms are respectively arranged on both sides of the first movement unit. The first movement unit can drive the second movement unit and the rotation unit to slide back and forth. The second movement unit is connected with the rotation unit and rotates. The unit can drive the second moving unit to swing back and forth, the swing axis of the rotating unit is parallel to the plane where the base is located, the second moving unit can fix the machining tool, and the second moving unit can drive the machining tool to slide back and forth. The sliding direction is perpendicular to the relative sliding direction of the second movement unit and the rotating unit. When the miniature gear hobbing machine of the present invention works, the distance between the two sets of clamp mechanisms is adjusted, and the workpiece to be processed is clamped by the clamp mechanism. position, the rotation unit can drive the second movement unit to swing back and forth to adjust the angle of the tool, and the second movement unit can drive the processing tool to slide up and down, so as to realize eight-axis linkage, improve processing accuracy, and process in place at one time, and improve processing efficiency. The invented micro gear hobbing machine has simple structure and convenient operation, and can process precise micro gear parts accurately and efficiently.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some of the present invention. In the embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative labor.

Fig. 1 is the structural representation of the miniature gear hobbing machine of the present invention;

Fig. 2 is the partial structure schematic diagram of the miniature gear hobbing machine of the present invention;

Fig. 3 is the structural schematic diagram of the rotating unit of the miniature gear hobbing machine of the present invention;

4 is a schematic structural diagram of the second movement unit of the micro gear hobbing machine of the present invention;

Fig. 5 is the structural schematic diagram of the cutter seat of the miniature gear hobbing machine of the present invention;

Fig. 6 is the structural schematic diagram of the clamp mechanism of the miniature gear hobbing machine of the present invention;

Fig. 7 is another structural schematic diagram of the clamp mechanism of the miniature gear hobbing machine of the present invention;

Among them, 1 is the first motion unit, 2 is the second motion unit, 3 is the rotation unit, 4 is the clamp mechanism, 5 is the first slide rail, 6 is the second slide rail, 7 is the first pallet, and 8 is the first Two pallets, 9 is the pressure plate, 10 is the adjustment plate, 11 is the driver, 12 is the rotating seat, 13 is the fixed seat, 14 is the third pallet, 15 is the hob mandrel, 16 is the hob tailstock, and 17 is the Over-cooling block, 18 is over-cooling pipe, 19 is cutting cooling pipe, 20 is steel shield, 21 is airtight pipe, 22 is base, 23 is scrap baffle, 24 is scrap deflector, and 25 is clamp Thimble, 26 is the rotary oil cylinder, 27 is the tool seat.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

The purpose of the present invention is to provide a micro gear hobbing machine, so as to solve the problems existing in the above-mentioned prior art and improve the processing precision and processing efficiency of the micro gear hobbing machine.

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

Please refer to FIGS. 1-7, wherein, FIG. 1 is a schematic structural diagram of a micro gear hobbing machine of the present invention, FIG. 2 is a partial structural schematic diagram of a micro gear hobbing machine of the present invention, and FIG. 3 is a structural schematic diagram of a rotating unit of the micro gear hobbing machine of the present invention. 4 is a schematic structural diagram of the second movement unit of the micro gear hobbing machine of the present invention, FIG. 5 is a structural schematic diagram of a tool holder of the micro gear hobbing machine of the present invention, FIG. 6 is a structural schematic diagram of a clamp mechanism of the micro gear hobbing machine of the present invention, and FIG. 7 is the present invention Another structural schematic diagram of the clamp mechanism of the miniature gear hobbing machine.

The present invention provides a miniature gear hobbing machine, comprising a base 22 and a card mounting unit, a first motion unit 1, a second motion unit 2, and a rotation unit 3 arranged on the base 22. The card mounting unit includes two sets of clamp mechanisms 4, two sets of The clamp mechanism 4 is arranged opposite, the clamp mechanism 4 is slidably arranged on the base 22, and the two sets of clamp mechanisms 4 cooperate to clamp the workpiece to be processed; the second movement unit 2 and the rotation unit 3 are connected with the first movement unit 1, A moving unit 1 is slidably arranged on the base 22, and two sets of clamp mechanisms 4 are respectively arranged on both sides of the first moving unit 1. The first moving unit 1 can drive the second moving unit 2 and the rotating unit 3 to slide back and forth. The second moving unit 2 is connected with the rotating unit 3, the rotating unit 3 can drive the second moving unit 2 to swing back and forth, the swing axis of the rotating unit 3 is parallel to the plane where the base 22 is located, the second moving unit 2 can fix the machining tool, the second moving The unit 2 can drive the machining tool to slide back and forth, and the relative sliding direction of the first moving unit 1 and the base 22 is perpendicular to the relative sliding direction of the second moving unit 2 and the rotating unit 3 .

When the micro gear hobbing machine of the present invention is working, the distance between the two sets of clamp mechanisms 4 is adjusted, and the workpiece to be processed is clamped by the clamp mechanism 4. The first moving unit 1 can drive the second moving unit 2 and the rotating unit 3 to move forward and backward on the base 22. To adjust the position of the machining tool, the two sets of fixture mechanisms 4 move back and forth to achieve hobbing movement, and the rotating unit 3 can drive the second movement unit 2 to swing back and forth to adjust the angle of the tool. By adjusting the angle of the tool, the second movement unit 2 can drive the machining tool to slide up and down to realize the hob shifting. The micro gear hobbing machine of the present invention can realize eight-axis linkage, improve machining accuracy, process in place at one time, improve machining efficiency, and has a simple structure. , easy to operate, can process precision micro gear parts accurately and efficiently.

Among them, the base 22 is provided with a first slide rail 5 and a second slide rail 6 to reduce the movement resistance of the clamp mechanism 4 and the first movement unit 1. The two sets of clamp mechanisms 4 are respectively connected with a first support plate 7, and the first The support plate 7 is slidably arranged on the first slide rail 5, the first movement unit 1 is connected with a second support plate 8, the second support plate 8 is slidably arranged on the second slide rail 6, and the first support plate is provided 7 and the second support plate 8, it is convenient to install the clamp mechanism 4 and the first movement unit 1, and the first slide rail 5 is perpendicular to the second slide rail 6. In addition, in order to ensure the straightness of the movement trajectories of the first pallet 7 and the second pallet 8, a pressure plate 9 and an adjustment plate 10 are provided on both the first pallet 7 and the second pallet 8. The pressure plate 9 and the adjustment plate 10 are respectively It is bolted to the first supporting plate 7/the second supporting plate 8, and is arranged on the opposite sides of the first supporting plate 7/the second supporting plate 8 parallel to the sliding direction.

In order to improve the adaptability of the device, the clamp mechanism 4 and the first support plate 7, the first movement unit 1 and the second support plate 8 can be detachably connected, and the clamp mechanism 4 and the first support plate 7, the first movement unit 1 and the second support plate 8 can be detachably connected. The connection position of the second support plate 8 can be adjusted. In this specific embodiment, the clamp mechanism 4 and the first support plate 7 and the first movement unit 1 and the second support plate 8 are all connected by bolts, which is convenient for disassembly and assembly. The operator adjusts the installation positions of the fixture mechanism 4 and the first motion unit 1 to adapt to the processing of different gear parts.

Specifically, the rotating unit 3 includes a driver 11 and a rotating base 12, the driver 11 is connected to the rotating base 12 through a coupling, and the rotating flange, the rotating diaphragm and the connecting flange form a coupling, and the driver 11 can drive the rotating base 12. For rotation, the driver 11 is connected with a reducer, and the second movement unit 2 is connected with the rotating base 12. The rotating base 12 is provided with a scale, which is convenient for the operator to know the rotation angle in time.

More specifically, the second movement unit 2 includes a fixed base 13 , a third support plate 14 and a tool base 27 , the fixed base 13 is connected with the rotating base 12 , the third support plate 14 is slidably arranged on the fixed base 13 , and the third A slide rail and a screw group are arranged between the support plate 14 and the fixed seat 13 to make the sliding smooth. A slidable steel plate cover 20 is arranged outside the slide rail and the screw group to effectively protect the slide rail and the screw group and prevent the environment The tool holder 27 is connected to the third pallet 14, and the tool holder 27 can fix the machining tool; the tool holder 27 includes a main shaft and a hob mandrel 15, the main shaft can drive the hob mandrel 15 to connect, and the hob mandrel 15 can be fixed In addition to the machining tool, a hob tailstock 16 is provided at one end of the hob mandrel 15 close to the machining tool, and the hob tailstock 16 can fix the tail of the hob mandrel 15 to enhance the cutting force of the hob, and the hob tailstock 16 can prevent the hob from shifting during the cutting process and affect the processing quality of gear parts.

In addition, the second motion unit 2 further includes an over-cooling block 17, an over-cooling pipe 18 and a cutting cooling pipe 19. The over-cooling block 17 communicates with the cutting cooling pipe 19 through the over-cooling pipe 18, and the over-cooling block 17 can communicate with the external cutting fluid. Connected, the cutting cooling pipe 19 can deliver cutting fluid to the machining tool and the machining workpiece, effectively protect the tool, prolong the service life of the tool, and obtain higher workpiece precision and surface finish. The cutting cooling pipe 19 is a flexible pipe. It should also be noted that an airtight tube 21 is also connected to the steel plate shield 20. The airtight tube 21 can prevent the entry of impurities such as external dust and machining chips, and effectively protect the internal device. In addition, other units of the micro gear hobbing machine are provided with protection. The outer casing prevents impurities from entering and improves the service life of the gear hobbing machine.

Further, both the tool holder 27 and the clamp mechanism 4 are provided with a casing, a frameless motor is arranged in the casing, a circulating flow channel is arranged between the casing and the frameless motor, and the circulating flow channel is communicated with the external cooling medium. Input cooling medium such as cooling oil, with the heat energy generated by the frameless motor, improve the service life of the frameless motor. It should be noted that setting a motor as a power source is a common method for those skilled in the art, and both the first motion unit 1 and the rotating unit 3 are provided with a power source, which will not be repeated here.

In this specific embodiment, one set of clamp mechanisms 4 is a thimble-type clamp, and the other set of clamp mechanisms 4 is a forward push-type collet clamp. The clamp thimble 25, the oil cylinder sleeve, and the rotary oil cylinder 26 constitute thrust clamping and retraction and relaxation, It can be flexibly selected according to different gear parts.

Furthermore, the clamp mechanism 4, the first motion unit 1, the second motion unit 2 and the rotation unit 3 are all provided with a limit sensor and a zero return sensor, which is convenient for controlling the movement of each unit, preventing excessive movement, and facilitating restart and reset. In addition, each unit is equipped with an encoder, and the encoder, limit sensor and zero return sensor are all connected to the controller of the gear hobbing machine. Since setting the controller to control the working state of the machine belongs to the conventional technical means in the field, it will not be repeated here.

In addition, the base 22 is also provided with an iron scrap baffle 23 and an iron scrap baffle 24. The iron scrap baffle 23 is arranged on one side of the clamp mechanism 4, the first movement unit 1, the second movement unit 2 and the rotation unit 3, It can prevent the chips from splashing, and the iron chip deflector 24 is arranged at the bottom of the machining unit to facilitate the export of chips and cutting fluid.

When the micro gear hobbing machine of the present invention is working, the distance between the two sets of clamp mechanisms 4 is adjusted, and the workpiece to be processed is clamped by the clamp mechanism 4. The first moving unit 1 can drive the second moving unit 2 and the rotating unit 3 to move forward and backward on the base 22. To adjust the position of the machining tool, the two sets of fixture mechanisms 4 move back and forth to achieve hobbing movement, and the rotating unit 3 can drive the second movement unit 2 to swing back and forth to adjust the angle of the tool. By adjusting the angle of the tool, the second movement unit 2 can drive the processing tool to slide up and down to realize the hob shifting. The micro gear hobbing machine of the present invention can realize eight-axis linkage, improve processing accuracy, process in place at one time, improve processing efficiency, and has a simple structure. , easy to operate, can process precision micro gear parts accurately and efficiently.

In the present invention, specific examples are used to illustrate the principles and implementations of the present invention, and the descriptions of the above embodiments are only used to help understand the method and the core idea of the present invention; There will be changes in the specific implementation manner and application scope of the idea of the invention. In conclusion, the contents of this specification should not be construed as limiting the present invention.

Claims (10)

1. A miniature gear hobbing machine is characterized in that: comprising a base and a card loading unit, a first movement unit, a second movement unit, a rotating unit arranged on the base, and the card loading unit includes two groups of clamp mechanisms, and two The clamp mechanisms of the two groups are arranged opposite to each other, the clamp mechanisms are slidably arranged on the base, and the two groups of the clamp mechanisms cooperate to clamp the workpiece to be processed; the second movement unit, the rotation unit and the The first moving unit is connected, the first moving unit is slidably arranged on the base, the two sets of the clamp mechanisms are respectively arranged on both sides of the first moving unit, and the first moving unit can drive the The second moving unit and the rotating unit slide back and forth, the second moving unit is connected with the rotating unit, the rotating unit can drive the second moving unit to swing back and forth, and the swing axis of the rotating unit is connected to the rotating unit. The plane on which the base is located is parallel, the second moving unit can fix the machining tool, the second moving unit can drive the machining tool to slide back and forth, and the relative sliding direction of the first moving unit and the base is the same as that of the first moving unit. The relative sliding directions of the two moving units and the rotating unit are perpendicular to each other. 2 . The miniature gear hobbing machine according to claim 1 , wherein the base is provided with a first sliding rail and a second sliding rail, and the two sets of the clamp mechanisms are respectively connected with a first support plate, and the first The support plate is slidably arranged on the first slide rail, the first movement unit is connected with a second support plate, the second support plate is slidably arranged on the second slide rail, and the first movement unit is slidably arranged on the second slide rail. A slide rail is perpendicular to the second slide rail. 3 . The micro gear hobbing machine according to claim 2 , wherein the clamp mechanism can be detachably connected to the first pallet, the first motion unit and the second pallet, and the clamp The connection positions of the mechanism and the first supporting plate, the first moving unit and the second supporting plate can be adjusted. 4 . The miniature gear hobbing machine according to claim 1 , wherein the rotating unit comprises a driver and a rotary base, the driver is connected to the rotary base through a coupling, and the driver can drive the rotary base. 5 . rotating, the second movement unit is connected with the rotating base, and the rotating base is provided with a scale. 5 . The micro gear hobbing machine according to claim 4 , wherein the second moving unit comprises a fixed seat, a third support plate and a tool seat, the fixed seat is connected with the rotating seat, and the third support The plate is slidably arranged on the fixed seat, the tool seat is connected with the third support plate, and the tool seat can fix the machining tool; the tool seat includes a main shaft and a hob mandrel, and the main shaft can The hob mandrel is driven to connect, and the hob mandrel can fix the machining tool. 6 . The micro gear hobbing machine according to claim 5 , wherein the second moving unit further comprises an over-cooling block, an over-cooling pipe and a cutting cooling pipe, and the over-cooling block is connected to the over-cooling pipe through the over-cooling pipe. 7 . The cutting cooling pipe is communicated with, and the excessive cooling block can be communicated with the external cutting liquid, and the cutting cooling pipe can deliver the cutting liquid to the machining tool and the machining workpiece, and the cutting cooling pipe is a flexible pipe. 7 . The miniature gear hobbing machine according to claim 5 , wherein the tool holder and the clamp mechanism are both provided with a casing, a frameless motor is arranged in the casing, and the casing and the frameless motor are arranged between the casing and the frameless motor. 8 . A circulating flow channel is arranged between them, and the circulating flow channel is communicated with the external cooling medium. 8 . The miniature gear hobbing machine according to claim 1 , wherein one set of the clamp mechanisms is a thimble-type clamp, and the other group of the clamp mechanisms is a forward push-type collet clamp. 9 . 9 . The micro gear hobbing machine according to claim 1 , wherein the clamp mechanism, the first motion unit, the second motion unit and the rotation unit are all provided with limit sensors and Zero sensor. 10. The miniature gear hobbing machine according to any one of claims 1-8, characterized in that: an iron filing baffle and an iron filing baffle are further arranged on the base, and the iron filing baffle is arranged on the clamp mechanism , one side of the first moving unit, the second moving unit and the rotating unit, and the iron scrap guide plate is arranged at the bottom of the processing unit.

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