CN211680363U - Gear hobbing machine steering mechanism - Google Patents
Gear hobbing machine steering mechanism Download PDFInfo
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- CN211680363U CN211680363U CN201922339571.9U CN201922339571U CN211680363U CN 211680363 U CN211680363 U CN 211680363U CN 201922339571 U CN201922339571 U CN 201922339571U CN 211680363 U CN211680363 U CN 211680363U
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- main shaft
- seat
- hobbing machine
- gear hobbing
- brake disc
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Abstract
The utility model discloses a gear hobbing machine steering mechanism, which comprises a direct drive transmission mechanism and a brake mechanism, wherein the direct drive transmission mechanism comprises a main shaft and a motor, a speed reducing mechanism is arranged between an output shaft of the motor and the inner end of the main shaft, and the main shaft passes through a planker seat and is fixed with the planker seat through threads; the brake mechanism is arranged on the outer circumferential surface of the main shaft and comprises an air cylinder arranged on the carriage seat and a brake disc arranged on the outer circumferential surface of the main shaft, the inner side surface of the brake disc is a cylindrical surface matched with the main shaft, the outer side of the brake disc is an extruded plane, the air cylinder runs, and the extruded brake disc moves towards the main shaft to realize brake operation. The utility model discloses, replace original turbine worm through directly driving the drive mode, effectively solve the clearance between the gear, improve off-the-shelf precision to adopted curved brake disc, can effectively improve the precision of brake.
Description
Technical Field
The utility model relates to a gear hobbing machine technical field, concretely relates to gear hobbing machine steering mechanism.
Background
A gear hobbing machine is a machine tool which is most widely applied in gear processing machines, and straight teeth and helical gears can be cut on the gear hobbing machine, and worm gears, chain wheels and the like can also be processed.
The gear hobbing machine is divided into a vertical type and a horizontal type according to the layout, most of large and medium gear hobbing machines are vertical, and the vertical gear hobbing machine of the small gear hobbing machine and the gear hobbing machine special for processing long shaft gears are horizontal. The vertical gear hobbing machine is divided into a workbench moving mode and an upright post moving mode. When the vertical gear hobbing machine works, the hob is arranged on a hob main shaft and is driven by a main motor to rotate, and the tool rest can vertically move along the upright post guide rail and can also be adjusted by an angle around a horizontal axis. The workpiece is arranged on the workbench, is driven to rotate by the indexing worm gear pair and forms generating movement together with the movement of the hob. When the helical gear is hobbing, the differential mechanism enables the workpiece to make corresponding additional rotation. The working table (or the upright post) can move along the bed in a guide rolling way so as to adapt to different workpiece diameters and carry out radial feeding. The tool holder of some gear hobbing machines can also be moved in the direction of the hob axis in order to machine the worm wheel in a tangential feed method. The large-scale gear hobbing machine is also provided with a single-tooth indexing mechanism, a finger-shaped milling cutter rest, a differential reversing mechanism for processing herringbone gears and the like.
The workpiece of the gear hobbing machine needs to move back and forth in operation, and the interior of the gear hobbing machine can move only by the reversing mechanism. The steering mechanism of traditional gear hobbing machine adopts all that the turbine worm reaches the drive effect, because of the turbine worm will pass through meshing conduction power, must have the clearance between the gear, will produce certain influence to the precision of processing thing like this, and the parallel structure brake block that self adopted in addition, not only brake performance is low, and it drives actuating cylinder and also needs four, resource-wasting, incremental cost.
In view of this, it is urgently needed to improve the steering structure of the existing gear hobbing machine so as to improve the machining precision and reduce the cost.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the structure machining precision that turns to of current gear hobbing machine is low, problem with high costs on the contrary.
In order to solve the technical problem, the utility model provides an adopted technical scheme is to provide a gear hobbing machine steering mechanism, include:
the direct-drive transmission mechanism comprises a main shaft and a motor, a speed reducing mechanism is arranged between an output shaft of the motor and the inner end of the main shaft, and the main shaft penetrates through the planker seat and is rotatably arranged on the planker seat;
the brake mechanism is arranged on the outer circumferential surface of the main shaft and comprises an air cylinder arranged on the carriage seat and a brake disc arranged on the outer circumferential surface of the main shaft, the inner side surface of the brake disc is a cylindrical surface matched with the main shaft, the outer side of the brake disc is an extruded plane, and the air cylinder operates to extrude the brake disc to move towards the main shaft to realize brake operation.
In another preferred embodiment, the speed reducing mechanism includes:
the cycloidal pin wheel speed reducer is fixed with an output shaft of the motor;
one end of the speed reducer base is fixed with the outer edge of the cycloidal pin wheel speed reducer through a bolt, and the other end of the speed reducer base is fixed with the drag plate base through a bolt.
In another preferred embodiment, a connecting seat is arranged between the speed reducing mechanism and the main shaft, the main shaft is a hollow shaft, a threaded part matched with the inner wall of the main shaft is arranged at the bottom of the connecting seat, the threaded part is fixed with the output shaft of the cycloidal pin gear speed reducer through a bolt, and the outer edge of the connecting seat is fixed with the end face of the main shaft through a bolt.
In another preferred embodiment, a squeezing assembly is provided on the cylinder, and the squeezing assembly includes:
one end of the supporting rod is fixed with the output end of the air cylinder, and the other end of the supporting rod is provided with a through hole;
one end of the supporting rod rotates on the drag plate seat, the other end of the supporting rod is provided with a supporting bearing, the through hole is matched with the supporting bearing, and the supporting seat is in contact with or separated from the plane of the brake disc.
In another preferred embodiment, the bottom of one end of the supporting seat is provided with a cylindrical surface part, the outer side of the supporting seat is provided with a rotating bolt, the mop plate seat is provided with a U-shaped seat, and the rotating bolt is rotatably arranged in the U-shaped seat through a pin shaft.
In another preferred embodiment, the cylinders are arranged in pairs, the two supporting seats are arranged side by side, and the supporting bearings on the two supporting seats are respectively arranged on two sides in different directions.
In another preferred embodiment, the cylinder is fixed on a cylinder plate, and the cylinder plate is fixed with the carriage base through four bolts.
In another preferred embodiment, a gasket is arranged between the speed reducer base and the mop plate base, a locking nut is arranged on the outer peripheral surface of the inner end of the main shaft, and a bolt penetrates through the locking nut, the gasket and the end surface of the mop plate base to be fixed.
In another preferred embodiment, guide rails are arranged on two sides of the mop plate seat, a screw rod nut seat is arranged between the guide rails, and a screw rod is arranged in the screw rod nut seat.
Compared with the prior art, the utility model discloses, replace original turbine worm through directly driving the drive mode, effectively solve the clearance between the gear, improve transmission efficiency and precision, improve the machining precision of product to adopted curved brake disc, taken place less skew when guaranteeing the main shaft brake, can effectively improve the precision and the effect of brake.
Drawings
Fig. 1 is a perspective view of the present invention;
FIG. 2 is a bottom perspective view of the present invention;
fig. 3 is a perspective view of the direct drive transmission mechanism and the brake mechanism of the present invention;
fig. 4 is a perspective view of the brake mechanism of the present invention;
FIG. 5 is an exploded view of the brake mechanism of the present invention;
fig. 6 is an exploded view of the direct drive transmission mechanism of the present invention;
fig. 7 is a cross-sectional view of the present invention.
Detailed Description
The utility model provides a gear hobbing machine steering mechanism, it is right below to combine the description drawing and detailed implementation mode the utility model discloses make detailed description.
As shown in fig. 1 and 2, the utility model provides a gear hobbing machine steering mechanism, including directly driving drive mechanism and brake mechanism. The direct-drive transmission mechanism is used for realizing the movement of the drag plate seat 40, and the brake mechanism is used for stopping the transmission of the main shaft 10 and the processing of the gear hobbing machine.
The direct-drive transmission mechanism comprises a spindle 10 and a motor 20, a speed reducing mechanism 30 is arranged between an output shaft of the motor 20 and the inner end of the spindle 10, and the spindle 10 penetrates through the mop plate seat 40 and is rotatably arranged on the mop plate seat 40.
As shown in fig. 3 to 5, the braking mechanism is disposed on the outer circumferential surface of the main shaft 10, and includes a cylinder 50 disposed on the shoe base 40 and a brake disc 60 disposed on the outer circumferential surface of the main shaft 10, the inner side surface of the brake disc 60 is a cylindrical surface adapted to the main shaft 10, the outer side surface is an extruded plane, the cylinder 50 operates to extrude the brake disc 60 to move toward the main shaft 10, so as to implement a braking operation.
As shown in fig. 6, the outer end of the main shaft 10 is provided with a main shaft sleeve 11 for connecting with the fixing device of the workpiece, so that the utility model drives the workpiece to move.
As shown in fig. 6 and 7, in a preferred embodiment, the reduction mechanism 30 includes a cycloidal-pin gear reducer 31 and a reducer housing 32. The cycloidal pin gear reducer 31 is fixed with the output shaft of the motor 20; one end of the speed reducer base 32 is fixed with the outer edge of the cycloidal pin gear speed reducer 31 through a bolt, and the other end is fixed with the drag plate base 40 through a bolt. The shell of the cycloidal pin gear speed reducer 31, the speed reducer base 32 and the carriage base 40 are fixed, so that the transmission by using a gear structure is avoided, the occupied space is small, and the number of parts can be effectively reduced.
Further, a connecting seat 80 is arranged between the speed reducing mechanism 30 and the main shaft 10, the main shaft 10 is a hollow shaft, a threaded portion 81 matched with the inner wall of the main shaft 10 is arranged at the bottom of the connecting seat 80, the threaded portion 81 is fixed with the output shaft of the cycloidal pin gear reducer 31 through a bolt, and the outer edge of the connecting seat 80 is fixed with the end face of the main shaft 10 through a bolt. The main shaft 10 is a hollow shaft, and the connecting seat 80 can connect the cycloidal pin gear reducer 31 and the main shaft 10 more firmly. The connecting seat 80 and the main shaft 10 adopt a double fixing mode of threaded connection and bolt fixing, and the transmission efficiency of torque is effectively improved.
In a preferred embodiment, as shown in fig. 5, a pressing assembly is provided on the cylinder 50, and the pressing assembly includes a support rod 71 and a support base 72. One end of the support rod 71 is fixed with the output end of the cylinder 50, and the other end is provided with a through hole 711; one end of the support rod 71 of the support seat 72 rotates on the carriage seat 40, the other end is provided with a support bearing, the through hole 711 is matched with the support bearing, and the support seat 72 is in contact with or separated from the plane of the brake disc 60. One end of the support base 72 is rotatably disposed, and the other end is lifted or pressed by the support rod 71, so as to press the brake disc 60.
Further, a cylindrical portion 722 is disposed at the bottom of one end of the supporting seat 72, a rotating bolt 721 is disposed at the outer side of the supporting seat, a U-shaped seat 710 is disposed on the carriage seat 40, and the rotating bolt 721 is rotatably disposed in the U-shaped seat 710 through a pin. The rotation pin 721 enables one end of the support seat 72 to be rotatably disposed, and the pillar portion 722 is always in line contact with the brake disc 60 during the rotation of the support seat 72, so as to achieve a certain pressing effect, and simultaneously maintain the rotation flexibility of the support seat 72.
Further, the air cylinders 50 are arranged in pairs, the supporting seats 72 are arranged side by side, and the supporting bearings on the two supporting seats 72 are respectively arranged on two sides in different directions. The two supporting seats 72 respectively extrude two sides of the brake disc 60, so that the brake disc 60 is uniformly stressed.
In a preferred embodiment, the cylinder 50 is fixed to a cylinder plate 51, and the cylinder plate 51 is fixed to the pallet base 40 by four bolts. The cylinder plates 51 may be formed in a square shape and in a symmetrical shape, which facilitates the arrangement of the cylinders 50 in pairs.
As shown in fig. 6 and 7, in a preferred embodiment, a spacer 320 is disposed between the reducer base 32 and the pallet base 40, a lock nut 90 is disposed on the outer circumferential surface of the inner end of the spindle 10, and a bolt is fixed through the lock nut 90, the spacer 320 and the end surface of the pallet base 40.
As shown in FIG. 1, in a preferred embodiment, guide rails 41 are provided on both sides of the pallet base 40, a lead screw nut base 42 is provided between the guide rails 41, and a lead screw is provided in the lead screw nut base 42. The guide rail 41 can be matched with a rack of the gear hobbing machine, so that the rotation of the motor 20 is converted into linear movement through screw transmission, and the horizontal or longitudinal movement of the pallet base 40 is facilitated.
The utility model discloses, replace original turbine worm through directly driving the drive mode, effectively solve the clearance between the gear, improve transmission efficiency and precision, improve the machining precision of product to adopted curved brake disc, taken place less skew when guaranteeing the main shaft brake, can effectively improve the precision and the effect of brake.
The present invention is not limited to the above-mentioned best mode, and any person should learn the structural change made under the teaching of the present invention, all with the present invention has the same or similar technical solution, all fall into the protection scope of the present invention.
Claims (9)
1. A gear hobbing machine steering mechanism, characterized by, includes:
the direct-drive transmission mechanism comprises a main shaft and a motor, a speed reducing mechanism is arranged between an output shaft of the motor and the inner end of the main shaft, and the main shaft penetrates through the planker seat and is rotatably arranged on the planker seat;
the brake mechanism is arranged on the outer circumferential surface of the main shaft and comprises an air cylinder arranged on the carriage seat and a brake disc arranged on the outer circumferential surface of the main shaft, the inner side surface of the brake disc is a cylindrical surface matched with the main shaft, the outer side of the brake disc is an extruded plane, and the air cylinder operates to extrude the brake disc to move towards the main shaft to realize brake operation.
2. The gear hobbing machine steering mechanism of claim 1, wherein the speed reduction mechanism includes:
the cycloidal pin wheel speed reducer is fixed with an output shaft of the motor;
one end of the speed reducer base is fixed with the outer edge of the cycloidal pin wheel speed reducer through a bolt, and the other end of the speed reducer base is fixed with the drag plate base through a bolt.
3. The steering mechanism of the gear hobbing machine according to claim 2, characterized in that a connecting seat is arranged between the speed reduction mechanism and the main shaft, the main shaft is a hollow shaft, a threaded part matched with the inner wall of the main shaft is arranged at the bottom of the connecting seat, the threaded part is fixed with the output shaft of the cycloidal pin gear speed reducer through a bolt, and the outer edge of the connecting seat is fixed with the end face of the main shaft through a bolt.
4. The gear hobbing machine steering mechanism of claim 1, wherein a squeeze assembly is provided on the cylinder, the squeeze assembly comprising:
one end of the supporting rod is fixed with the output end of the air cylinder, and the other end of the supporting rod is provided with a through hole;
one end of the supporting rod rotates on the drag plate seat, the other end of the supporting rod is provided with a supporting bearing, the through hole is matched with the supporting bearing, and the supporting seat is in contact with or separated from the plane of the brake disc.
5. The steering mechanism of gear hobbing machine of claim 4, wherein the bottom of one end of the supporting seat is provided with a cylindrical surface portion, and the outer side is provided with a rotating bolt, the drag plate seat is provided with a U-shaped seat, and the rotating bolt is rotatably arranged in the U-shaped seat through a pin shaft.
6. The steering mechanism for a hobbing machine according to claim 4, characterized in that the cylinders are arranged in pairs, the supporting seats are two arranged side by side, and the supporting bearings on the two supporting seats are respectively arranged on both sides in different directions.
7. The gear hobbing machine steering mechanism of claim 1, wherein the cylinder is fixed to a cylinder plate, the cylinder plate being fixed to the carriage base by four bolts.
8. The gear hobbing machine steering mechanism according to claim 2, wherein a gasket is arranged between the speed reducer base and the pallet base, a lock nut is arranged on the outer peripheral surface of the inner end of the main shaft, and a bolt penetrates through the lock nut, the gasket and the end surface of the pallet base to be fixed.
9. The steering mechanism of a gear hobbing machine of claim 1, characterized in that guide rails are provided on both sides of the shoe base, a lead screw-nut base is provided between the guide rails, and a lead screw is provided in the lead screw-nut base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922339571.9U CN211680363U (en) | 2019-12-23 | 2019-12-23 | Gear hobbing machine steering mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922339571.9U CN211680363U (en) | 2019-12-23 | 2019-12-23 | Gear hobbing machine steering mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211680363U true CN211680363U (en) | 2020-10-16 |
Family
ID=72793750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922339571.9U Active CN211680363U (en) | 2019-12-23 | 2019-12-23 | Gear hobbing machine steering mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211680363U (en) |
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2019
- 2019-12-23 CN CN201922339571.9U patent/CN211680363U/en active Active
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