Miniature gear hobbing machine
Technical Field
The utility model relates to a machining equipment technical field especially relates to a miniature gear hobbing machine.
Background
The gear is a mechanical element with teeth on the wheel rim capable of continuously engaging to transmit motion and power, and is a mechanical part with teeth capable of engaging with each other. With the continuous development of the intelligent era and the prevalence of miniaturization of products, micro-gears are widely used in clocks, home appliances, medical machines, automobiles, automation industries, and the like.
The hobbing machine is the most widely used machine tool in gear processing machine tools, and can machine straight teeth, helical gears, worm gears, chain wheels and the like on the hobbing machine, and the hobbing cutter is used for processing the straight teeth, helical teeth, herringbone gears and worm gears according to a generating method. The miniature gear hobbing machine can be used for processing small-modulus miniature gear parts, but the existing miniature gear hobbing machine needs to convert parts, has lower processing efficiency and can not meet the processing requirements of products with high processing precision requirements.
Therefore, how to change the current situation that the machining efficiency and the machining precision of the micro gear hobbing machine are low in the prior art becomes a problem to be solved urgently by the technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a miniature gear hobbing machine to solve the problem that above-mentioned prior art exists, improve miniature gear hobbing machine's machining precision and machining efficiency.
In order to achieve the above object, the utility model provides a following scheme: the utility model provides a micro gear hobbing machine, which comprises a base, and a clamping unit, a first moving unit, a second moving unit and a rotating unit which are arranged on the base, wherein the clamping unit comprises two groups of clamp mechanisms which are arranged oppositely, the clamp mechanisms are arranged on the base in a sliding way, and the two groups of clamp mechanisms are matched to clamp a workpiece to be machined; the fixture comprises a base, a first moving unit, a second moving unit, a rotating unit, a first moving unit, two groups of fixture mechanisms, a second moving unit, a rotating unit and a second moving unit, wherein the second moving unit, the rotating unit and the first moving unit are connected, the first moving unit is arranged on the base in a sliding mode, the two groups of fixture mechanisms are arranged on two sides of the first moving unit respectively, 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, the rotating unit can drive the second moving unit to swing back and forth, the swinging axis of the rotating unit is parallel to the plane where the base is located, the second moving unit can fix a 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 perpendicular to the relative.
Preferably, the base is provided with a first slide rail and a second slide rail, the two sets of fixture mechanisms are respectively connected with a first supporting plate, the first supporting plate is slidably arranged on the first slide rail, the first moving unit is connected with a second supporting plate, the second supporting plate is slidably arranged on the second slide rail, and the first slide rail is perpendicular to the second slide rail.
Preferably, the clamping mechanism and the first supporting plate, and the first moving unit and the second supporting plate are detachably connected, and the connecting positions of the clamping mechanism and the first supporting plate, and the connecting positions of the first moving unit and the second supporting plate can be adjusted.
Preferably, the rotating unit comprises a driver and a rotating base, the driver is connected with the rotating base through a coupler in a transmission mode, the driver can drive the rotating base to rotate, the second moving unit is connected with the rotating base, and scales are arranged on the rotating base.
Preferably, the second moving unit includes a fixed seat, a third supporting plate and a tool seat, the fixed seat is connected to the rotating seat, the third supporting plate is slidably disposed on the fixed seat, the tool seat is connected to the third supporting plate, and the tool seat can fix a machining tool; the cutter seat comprises a main shaft and a hob mandrel, the main shaft can drive the hob mandrel to be connected, and a machining cutter can be fixed by the hob mandrel.
Preferably, the second motion unit further comprises an overcooling block, an overcooling pipe and a cutting cooling pipe, wherein the overcooling block is communicated with the cutting cooling pipe through the overcooling pipe, the overcooling block can be communicated with an external cutting liquid, the cutting cooling pipe can convey the cutting liquid to a machining tool and a machining workpiece, and the cutting cooling pipe is a flexible pipe.
Preferably, the tool rest and the clamp mechanism are both provided with a housing, a frameless motor is arranged in the housing, a circulation flow channel is arranged between the housing and the frameless motor, and the circulation flow channel is communicated with an external cooling medium.
Preferably, one set of the clamp mechanisms is a thimble type clamp, and the other set of the clamp mechanisms is a push-forward collet clamp.
Preferably, the clamp mechanism, the first movement unit, the second movement unit and the rotation unit are all provided with a limit sensor and a return-to-zero sensor.
Preferably, still set up iron fillings baffle and iron fillings guide plate on the base, the iron fillings baffle set up in fixture mechanism first movement unit the second movement unit with one side of rotation unit, the iron fillings guide plate sets up in the bottom of processing unit.
The utility model discloses for prior art gain following technological effect: the utility model 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 second motion unit, the rotation unit links to each other with first motion unit, first motion unit slidable ground sets up on the base, two sets of anchor clamps mechanisms set up respectively in the both sides of first motion unit, first motion unit can drive the second motion unit, the rotation unit slides back and forth, the second motion unit links to each other with the rotation unit, the rotation unit can drive the swing back and forth of second motion unit, the swing axis of rotation unit is parallel with the plane of base place, the processing cutter can be fixed to the second motion unit, the second motion unit can drive the processing cutter and slide back and forth, the relative slip direction of first motion unit, the base is perpendicular with the relative slip direction of second motion unit, the rotation unit. The utility model discloses a miniature gear hobbing machine during operation, the interval between the two sets of anchor clamps mechanisms of adjustment utilizes anchor clamps mechanism to press from both sides tightly to treat the machined part, and first motion unit can drive second motion unit and rotate the unit seesaw on the base, adjusts the position of processing cutter, and the rotation unit can drive second motion unit swing back and forth to the angle of adjustment cutter, second motion unit can drive the processing cutter and slide from top to bottom, thereby realize eight-axis linkage, improve the machining precision, once only process to the position, improve machining efficiency, the utility model discloses a miniature gear hobbing machine simple structure, the simple operation can process out accurate miniature gear part accurately, high-efficiently.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic structural view of a micro gear hobbing machine of the present invention;
FIG. 2 is a schematic view of a part of the structure of the micro gear hobbing machine of the present invention;
fig. 3 is a schematic structural view of a rotating unit of the micro gear hobbing machine of the present invention;
fig. 4 is a schematic structural view of a second moving unit of the micro gear hobbing machine of the present invention;
FIG. 5 is a schematic structural view of a tool seat of the micro gear hobbing machine of the present invention;
fig. 6 is a schematic structural view of a clamping mechanism of the micro gear hobbing machine of the present invention;
fig. 7 is another schematic structural diagram of the clamping mechanism of the micro gear hobbing machine of the present invention;
wherein, 1 is the first movement unit, 2 is the second movement unit, 3 is the rotation unit, 4 is the anchor clamps mechanism, 5 is the first slide rail, 6 is the second slide rail, 7 is the first layer board, 8 is the second layer board, 9 is the clamp plate, 10 is the regulating plate, 11 is the driver, 12 is the roating seat, 13 is the fixing base, 14 is the third layer board, 15 is the hobbing cutter dabber, 16 is the hobbing cutter tailstock, 17 is the excessive square of cooling, 18 is the excessive pipe of cooling, 19 is the cutting cooling tube, 20 is the steel sheet guard shield, 21 is the gas tight pipe, 22 is the base, 23 is the iron fillings baffle, 24 is the iron fillings guide plate, 25 is the anchor clamps thimble, 26 is rotatory hydro-cylinder, 27 is the cutter seat.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model aims at providing a miniature gear hobbing machine to solve the problem that above-mentioned prior art exists, improve miniature gear hobbing machine's machining precision and machining efficiency.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Please refer to fig. 1-7, wherein, fig. 1 is the structural schematic diagram of the micro gear hobbing machine of the present invention, fig. 2 is the partial structural schematic diagram of the micro gear hobbing machine of the present invention, fig. 3 is the structural schematic diagram of the rotation unit of the micro gear hobbing machine of the present invention, fig. 4 is the structural schematic 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 tool seat of the micro gear hobbing machine of the present invention, fig. 6 is the structural schematic diagram of the fixture mechanism of the micro gear hobbing machine of the present invention, fig. 7 is another structural schematic diagram of the fixture mechanism of the micro gear hobbing machine of the present invention.
The utility model provides a micro gear hobbing machine, which comprises a base 22, a clamping unit, a first moving unit 1, a second moving unit 2 and a rotating unit 3, wherein the clamping unit is arranged on the base 22 and comprises two groups of clamp mechanisms 4, the two groups of clamp mechanisms 4 are arranged relatively, the clamp mechanisms 4 are arranged on the base 22 in a sliding way, and the two groups of clamp mechanisms 4 are matched to clamp a workpiece to be machined; the second motion unit 2, the rotation unit 3 links to each other with the first motion unit 1, the first motion unit 1 slidable sets up on base 22, two sets of anchor clamps mechanisms 4 set up respectively in the both sides of first motion unit 1, first motion unit 1 can drive the second motion unit 2, the rotation unit 3 slides back and forth, the second motion unit 2 links to each other with the rotation unit 3, the rotation unit 3 can drive the second motion unit 2 swing back and forth, the swing axis of rotation unit 3 is parallel with the plane of base 22 place, the processing cutter can be fixed to the second motion unit 2, the second motion unit 2 can drive the processing cutter and slide back and forth, the relative slip direction of first motion unit 1, base 22 is perpendicular with the relative slip direction of second motion unit 2, the rotation unit 3.
When the micro gear hobbing machine of the utility model works, the space between the two groups of clamp mechanisms 4 is adjusted, the clamp mechanisms 4 are utilized to clamp the workpiece to be machined, the first motion unit 1 can drive the second motion unit 2 and the rotation unit 3 to move back and forth on the base 22 to adjust the position of the machining cutter, the two groups of clamp mechanisms 4 move back and forth to realize the hobbing movement, the rotation unit 3 can drive the second motion unit 2 to swing back and forth to adjust the angle of the cutter, in the actual operation, according to the angle of the bevel gear parts with different helix angles, the second motion unit 2 can drive the processing cutter to slide up and down to realize the cutter fleeing of the hobbing cutter, the miniature gear hobbing machine of the utility model can realize eight-axis linkage, improve the processing precision, process to the position at one time, improve the processing efficiency, and the structure is simple, the operation is convenient, and the precise miniature gear part can be accurately and efficiently processed.
Wherein, be provided with first slide rail 5 and second slide rail 6 on the base 22, reduce the movement resistance of anchor clamps mechanism 4 and first locomotion unit 1, two sets of anchor clamps mechanisms 4 are connected with first layer board 7 respectively, first layer board 7 slidable sets up on first slide rail 5, first locomotion unit 1 is connected with second layer board 8, second layer board 8 slidable sets up on second slide rail 6, set up first layer board 7 and second layer board 8, make things convenient for anchor clamps mechanism 4, the installation of first locomotion unit 1, first slide rail 5 is mutually perpendicular with second slide rail 6. In addition, in order to ensure the straightness of the movement tracks of the first supporting plate 7 and the second supporting plate 8, a pressing plate 9 and an adjusting plate 10 are respectively arranged on the first supporting plate 7 and the second supporting plate 8, and the pressing plate 9 and the adjusting plate 10 are respectively connected with the first supporting plate 7/the second supporting plate 8 through bolts and are arranged on two opposite sides of the first supporting plate 7/the second supporting plate 8 parallel to the sliding direction.
In order to improve the device adaptability, fixture mechanism 4 and first layer board 7, first motion unit 1 and second layer board 8 all can be dismantled and connected, and fixture mechanism 4 and first layer board 7, the hookup location of first motion unit 1 and second layer board 8 can be adjusted, in this embodiment, fixture mechanism 4 and first layer board 7, first motion unit 1 all adopts bolted connection's mode with second layer board 8, the dismouting of being convenient for, make things convenient for operating personnel to adjust fixture mechanism 4 and first motion unit 1's mounted position, adapt to different gear parts's processing.
Specifically, rotation unit 3 includes driver 11 and roating seat 12, and driver 11 passes through the shaft coupling and links to each other with 12 transmissions of roating seat, and roating flange, rotatory diaphragm and flange constitute the shaft coupling, and driver 11 can drive roating seat 12 and rotate, and driver 11 is connected with the speed reducer, and second motion unit 2 links to each other with roating seat 12, is provided with the scale on the roating seat 12, makes things convenient for operating personnel in time to know turned angle.
More specifically, the second motion unit 2 includes a fixed seat 13, a third supporting plate 14 and a tool seat 27, the fixed seat 13 is connected with the rotating seat 12, the third supporting plate 14 is slidably disposed on the fixed seat 13, a sliding rail and a screw rod set are disposed between the third supporting plate 14 and the fixed seat 13 to enable the sliding to be smooth, a steel plate protective cover 20 capable of sliding is disposed outside the sliding rail and the screw rod set to effectively protect the sliding rail and the screw rod set and prevent environmental pollution, the tool seat 27 is connected with the third supporting plate 14, and the tool seat 27 can fix a machining tool; the cutter base 27 comprises a main shaft and a hob mandrel 15, the main shaft can drive the hob mandrel 15 to be connected, the hob mandrel 15 can fix a machining cutter, in addition, a hob tailstock 16 is arranged at one end, close to the machining cutter, of the hob mandrel 15, the tail of the hob mandrel 16 can be fixed, the hob cutting force is enhanced, and the hob tailstock 16 can prevent a hob from shifting in the cutting process and affecting the machining quality of gear parts.
In addition, the second motion unit 2 further comprises an overcooling block 17, an overcooling pipe 18 and a cutting cooling pipe 19, the overcooling block 17 is communicated with the cutting cooling pipe 19 through the overcooling pipe 18, the overcooling block 17 can be communicated with external cutting fluid, the cutting cooling pipe 19 can convey the cutting fluid to a machining cutter and a machined workpiece, the cutter is effectively protected, the service life of the cutter is prolonged, higher workpiece precision and surface finish can be obtained, and the cutting cooling pipe 19 is a flexible pipe. It should be further noted that an airtight pipe 21 is further connected to the steel plate shield 20, the airtight pipe 21 can prevent impurities such as external dust and machining chips from entering, and effectively protects internal devices, and in addition, other units of the miniature gear hobbing machine are provided with protective housings, so that impurities are prevented from entering, and the service life of the gear hobbing machine is prolonged.
Further, the tool rest 27 and the clamp mechanism 4 are both provided with a housing, the frameless motor is arranged in the housing, a circulation flow channel is arranged between the housing and the frameless motor, the circulation flow channel is communicated with an external cooling medium, and the circulation flow channel is filled with cooling media such as cooling oil, so that heat energy generated by the operation of the frameless motor is provided, and the service life of the frameless motor is prolonged. It should be noted that it is a conventional means of those skilled in the art to provide a motor as a power source, and the power source is provided for both the first moving unit 1 and the rotating unit 3, which will not be described herein again.
In the present embodiment, one set of fixture mechanisms 4 is a thimble type fixture, the other set of fixture mechanisms 4 is a forward-push collet fixture, and the fixture thimble 25, the cylinder sleeve, and the rotary cylinder 26 form thrust clamping and retraction releasing, which can be flexibly selected according to different gear parts.
Furthermore, the clamp mechanism 4, the first moving unit 1, the second moving unit 2 and the rotating unit 3 are provided with a limit sensor and a zero return sensor, so that the movement of each unit is controlled conveniently, excessive movement is prevented, and resetting is restarted conveniently. In addition, each unit is provided with an encoder, and the encoder, the limit sensor and the zero return sensor are all connected with a controller of the gear hobbing machine, so that the setting of the controller to control the working state of the machine belongs to the conventional technical means in the field, and the description is omitted here.
In addition, still set up iron fillings baffle 23 and iron fillings guide plate 24 on base 22, iron fillings baffle 23 sets up in one side of fixture mechanism 4, first movement unit 1, second movement unit 2 and rotation unit 3, can prevent that the cutting bits from splashing, and iron fillings guide plate 24 sets up in the bottom of processing unit, is convenient for cutting bits, cutting fluid to derive.
When the micro gear hobbing machine of the utility model works, the space between the two groups of clamp mechanisms 4 is adjusted, the clamp mechanisms 4 are utilized to clamp the workpiece to be machined, the first motion unit 1 can drive the second motion unit 2 and the rotation unit 3 to move back and forth on the base 22 to adjust the position of the machining cutter, the two groups of clamp mechanisms 4 move back and forth to realize the hobbing movement, the rotation unit 3 can drive the second motion unit 2 to swing back and forth to adjust the angle of the cutter, in the actual operation, according to the angle of the bevel gear parts with different helix angles, the second motion unit 2 can drive the processing cutter to slide up and down to realize the cutter fleeing of the hobbing cutter, the miniature gear hobbing machine of the utility model can realize eight-axis linkage, improve the processing precision, process to the position at one time, improve the processing efficiency, and the structure is simple, the operation is convenient, and the precise miniature gear part can be accurately and efficiently processed.
The utility model discloses a concrete example is applied to explain the principle and the implementation mode of the utility model, and the explanation of the above example is only used to help understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.