CN211413936U

CN211413936U - Gear hobbing machine for manufacturing speed reducer gear

Info

Publication number: CN211413936U
Application number: CN201922491081.0U
Authority: CN
Inventors: 陈学军; 孙丽红; 潘志斌
Original assignee: Laiwu Wanfang Coal Mine Machinery Co ltd
Current assignee: Laiwu Wanfang Coal Mine Machinery Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-09-04
Anticipated expiration: 2029-12-31

Abstract

The utility model relates to a gear hobbing machine for manufacturing a reducer gear, which comprises a bottom plate, a clamping table which is arranged on the bottom plate and can clamp a gear blank to rotate, a hobbing cutter block which is arranged on the bottom plate and can drive the hobbing cutter to move in the vertical direction, and the hobbing cutter is rotationally connected with a height sliding block which is slidably connected with the hobbing cutter block in the vertical direction, the height sliding block of the gear hobbing machine comprises a sliding block which is slidably connected with the hobbing cutter block in the vertical direction, a rotating block which is rotationally connected with the sliding block and rotationally connected with the hobbing cutter, the rotating block is coaxially and fixedly connected with a rotating shaft which is rotationally connected with the sliding block, the rotating shaft is coaxially and fixedly connected with a long bevel gear, the long bevel gear is meshed with a wide bevel gear rotationally connected with the sliding block, the wide bevel gear is coaxially and fixedly connected with a worm wheel, the worm wheel is meshed with a worm, the hob cutter can not be stressed to rotate during machining.

Description

Gear hobbing machine for manufacturing speed reducer gear

Technical Field

The utility model relates to a metal processing equipment especially relates to a gear hobbing machine for making reduction gear.

Background

Gears are common parts in various machine equipment, are often used for power transmission, can realize changing rotating speed and torque, changing movement direction and changing movement form, and have straight teeth gears, helical gears and the like according to different types of gears for different purposes, and equipment for manufacturing the gears is a gear hobbing machine, and cylindrical gear blanks are placed into the gear hobbing machine for corresponding processing.

For example, a high-efficient gear hobbing machine convenient to tooth, the publication number is CN209698199U, including the gear hobbing machine body, the left side fixed mounting of gear hobbing machine body has the pneumatic cylinder, the left side fixed mounting of pneumatic cylinder has the baffle, the right side of baffle and the bottom fixed mounting who is located the pneumatic cylinder have first slide rail, the bottom fixed mounting of gear hobbing machine body has first slider, first slider and first slide rail sliding connection, the right side fixed mounting of gear hobbing machine body has the second slide rail, the top fixed mounting on gear hobbing machine body right side has the footstock.

Above-mentioned technical scheme is put the gear in the second carousel upper surface and is fixed, promote the hobbing cutter by the pneumatic cylinder again and be close to the gear on the horizontal direction, drive the hobbing cutter again by the pneumatic rod and be close to the gear in vertical direction, then accessible turned angle adjustment disc drives initiative awl tooth and rotates, then drive driven awl tooth and rotate, make, the horizontal pole rotates and drives the hobbing cutter and rotate the gear of processing different patterns, however, in the gear machining process, the atress between hobbing cutter and the gear is great, probably can make the hobbing cutter take place to rotate around the axis of horizontal pole, influence the processing of gear.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a gear hobbing machine for making reduction gear, it has and adds man-hour and can avoid the hobbing cutter to remove at will, influences the effect of the course of working of tooth base.

The above technical purpose of the present invention can be achieved by the following technical solutions: a gear hobbing machine for manufacturing a gear of a speed reducer comprises a bottom plate, a clamping table which is arranged on the bottom plate and can clamp a gear blank to rotate and move, and a hobbing cutter block which is arranged on the bottom plate and can drive the hobbing cutter to move in the vertical direction and rotate around the axis of the hobbing cutter, wherein the hobbing cutter is rotationally connected with a height sliding block which is slidably connected with the hobbing cutter block in the vertical direction, the height sliding block comprises a sliding block which is slidably connected with the hobbing cutter block in the vertical direction, a rotating block which is rotationally connected with the sliding block and is rotationally connected with the hobbing cutter, the rotating block is coaxially and fixedly connected with a rotating shaft which is rotationally connected with the sliding block, the rotating shaft is coaxially and fixedly connected with a long bevel gear, the wide bevel gear is coaxially and fixedly connected with a worm wheel, the worm wheel is meshed with a worm which is arranged in a penetrating mode and is connected to the sliding block in a rotating mode, and the end, away from the sliding block, of the worm is coaxially and fixedly connected with a rotating disc.

Through adopting above-mentioned technical scheme, when needs production helical gear, rotate the carousel, drive the hobbing cutter and rotate around the axis of rotation for there is the contained angle in the upper portion horizontal plane of hobbing cutter and tooth base to process into the helical gear with the tooth base, the carousel drives the worm wheel through the worm simultaneously and rotates, makes can only rotate by the one-way hobbing cutter that drives of carousel, avoids great effort between tooth base and the hobbing cutter in the course of working, makes the angle between hobbing cutter and the tooth base upper surface take place to rotate, influences the normal shaping of helical gear.

The utility model discloses further set up to: the outer wall that the worm was worn to establish by the slider is equipped with the calibrated scale coaxial with the worm, and worm fixedly connected with sliding connection is in the instruction block of calibrated scale.

By adopting the technical scheme, when the angle of the hob needs to be adjusted to produce helical gears of different models, the dial can be accurately rotated according to the indicating action of the dial in which the indicating block is positioned, and the angle of the hob can be adjusted.

The utility model discloses further set up to: the rotary block is fixedly connected with an output shaft which is coaxial and can be detachably connected with a hobbing cutter motor of the hobbing cutter, the output shaft of the hobbing cutter motor is provided with a rectangular insertion groove, the hobbing cutter comprises an insertion block which can be inserted into the insertion groove, a cutter body which is fixedly connected with the insertion block and used for processing a gear blank, and a cutter body side block which is rotatably connected with the cutter body, is far away from one end of the insertion block and is slidably connected with the rotary block along the central line direction of the insertion groove, and is inserted with a fixing screw which is in threaded connection with the.

Through adopting above-mentioned technical scheme, the hobbing cutter will be processed into the gear with the tooth base, and its wearing and tearing that receive are also bigger, still need change the hobbing cutter in order to produce the gear of different models according to the demand of difference simultaneously, when the hobbing cutter needs to be changed, screw down the fixed screw, keep away from the removal of hobbing cutter motor with the hobbing cutter along self axis direction, can take off the hobbing cutter to the more new hobbing cutter of renewal, it is comparatively convenient.

The utility model discloses further set up to: the height groove has been seted up to the hobbing cutter piece, and height groove rotates to be connected with and is vertical and threaded connection in the perpendicular screw rod that moves of slider, and the slider is worn to establish and sliding connection has and is vertical and fixed connection in the polished rod in height groove, and the hobbing cutter piece is equipped with the coaxial fixed connection of output shaft and moves the screw rod motor in the perpendicular of moving the screw rod.

Through adopting above-mentioned technical scheme, move the screw rod through erectting and drive the slider and can carry out a comparatively steady removal along vertical direction, the polished rod can prevent to move the screw rod when rotating in the perpendicular, drives the slider and rotates in the lump simultaneously, ensures that the slider can only move along vertical direction.

The utility model discloses further set up to: the centre gripping platform includes along bottom plate length direction sliding connection in the centre gripping slider of bottom plate, rotate the centre gripping turning block of connecting in centre gripping slider upper portion, locate the centre gripping turning block and can the three-jaw chuck of centre gripping tooth base, and the bottom plate is equipped with and drives the centre gripping slider and carry out gliding centre gripping slide mechanism along bottom plate length direction, and the centre gripping slider is equipped with and drives the centre gripping turning block around self central line pivoted centre gripping slewing mechanism.

Through adopting above-mentioned technical scheme, can comparatively firmly centre gripping tooth base through three-jaw chuck, it is all comparatively convenient to fix and take off the tooth base simultaneously.

The utility model discloses further set up to: the mounting groove has been seted up to centre gripping turning block upper surface, but three-jaw chuck fixedly connected with butt in the installation piece of centre gripping turning block and grafting in the mounting groove, but the installation piece is pegged graft there is threaded connection in the installation screw of mounting groove.

Through adopting above-mentioned technical scheme, when three-jaw chuck need overhaul when changing, will install the screw and screw down, three-jaw chuck takes out, when the installation, will install the piece and peg graft among the mounting groove, can screw in installation screw for three-jaw chuck's installation is fixed very convenient.

The utility model discloses further set up to: the width of the clamping table is smaller than that of the bottom plate, and baffle plates which are vertical and parallel to the length direction of the bottom plate are arranged on two side edges of the length direction of the bottom plate.

Through adopting above-mentioned technical scheme, add man-hour at the tooth base, can produce the iron fillings that more spatter all around, and the baffle can keep off iron fillings down, avoids iron fillings to spatter the outside clearance inconvenience of equipment all around.

The utility model discloses further set up to: baffle slots are formed in two sides of the bottom plate in the length direction, and baffle blocks fixedly connected to the planes of the baffles facing the bottom plate are inserted into the baffle slots.

Through adopting above-mentioned technical scheme, when taking out or putting into the tooth base, take off the baffle, the workman of being convenient for operates, when equipment operation, the plate of baffle is pegged graft corresponding to the baffle groove for the baffle can be installed fixedly more conveniently.

To sum up, the utility model discloses following beneficial effect has at least:

when the helical gear needs to be produced, the turntable is rotated to drive the hob to rotate around the axis of the rotating shaft, so that an included angle exists between the hob and the upper horizontal plane of the gear blank to process the gear blank into the helical gear, and meanwhile, the worm drives the worm gear to rotate through the turntable, so that the hob can only be driven to rotate in one direction through the turntable, and the phenomenon that the angle between the hob and the upper surface of the gear blank rotates to influence the normal forming of the helical gear due to the fact that a large acting force is generated between the gear blank and the hob in the machining process is avoided;

when taking out or putting into the tooth base, take off the baffle, the workman of being convenient for operates, when equipment operation, the plate of baffle is pegged graft corresponding to the baffle groove for the baffle can be installed fixedly more conveniently.

Drawings

FIG. 1 is a main structure view of the present invention;

FIG. 2 is a side view of the base plate with the baffle removed;

FIG. 3 is a partial cross-sectional structural schematic view of the height slider.

In the figure, 1, a bottom plate; 11. a baffle plate; 12. a baffle slot; 13. a baffle block; 14. a clamping table groove; 15. a guide rail; 16. a sliding screw; 17. a slide motor; 18. rotating the motor; 2. a clamping table; 3. hobbing cutters; 31. a cutter rolling groove; 4. a hob block; 41. a height slot; 411. mounting screws; 42. vertically moving the screw rod; 43. a polish rod; 44. a vertical screw motor; 45. clamping the sliding block; 46. clamping the rotating block; 47. a three-jaw chuck; 48. mounting blocks; 49. mounting grooves; 5. a height slider; 51. a slider; 511. an indication block; 512. a hob motor; 513. inserting grooves; 514. an insertion block; 515. a cutter body; 516. fixing screws; 517. a cutter body side block; 518. an angle mechanism slot; 519. a motor block; 52. rotating the block; 53. a rotating shaft; 54. a long bevel gear; 55. a wide bevel gear; 56. a worm gear; 57. a worm; 58. a turntable; 59. a dial.

Detailed Description

The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

The utility model provides a gear hobbing machine for making reduction gear, refers to figure 1, including placing in bottom plate 1 on ground, but 1 upper surface one end of bottom plate has the centre gripping terminal surface to be horizontally tooth base and drive the tooth base and carry out pivoted grip table 2 around the axis of tooth base along 1 length direction sliding connection of bottom plate, and 2 one end fixedly connected with of grip table are vertical hobbing cutter piece 4 are kept away from to bottom plate 1, and hobbing cutter piece 4 is installed and can be followed vertical direction and remove and can wind self axis pivoted hobbing cutter 3, the utility model discloses a hobbing cutter 3 when processing tooth base, can not receive the processing and come from tooth base external force that receives and take place to rotate, avoids the unsatisfactory requirement of processing of tooth base.

Referring to fig. 1 and 2, a hob block 4 is provided with a vertical height groove 41 facing the vertical side of the clamping table 2, the height groove 41 is rotatably connected with a vertical moving screw 42, the top of the hob block 4 is fixedly connected with a vertical moving screw motor 44 whose output shaft is coaxially and fixedly connected with the vertical moving screw 42, the vertical moving screw 42 is in threaded connection with a height sliding block 5 which is slidably connected with the height groove 41 along the vertical direction, the height sliding block 5 comprises a sliding block 51 which is slidably connected with the height groove 41 along the vertical direction and is in threaded connection with the vertical moving screw 42, the sliding block 51 is penetrated and slidably connected with a vertical polished rod 43, the polished rod 43 is fixedly connected with the upper and lower inner walls of the height groove 41, the vertical side of the sliding block 51 away from the vertical moving screw 42 is rotatably connected with a rotating block 52 which is circular, as shown in fig. 3, the rotating block 52 is coaxially and fixedly connected with a rotating shaft 53, the rotating shaft 53 penetrates through the angle mechanism groove 518, the long bevel gear 54 is coaxially and fixedly connected to one end, located at the angle mechanism groove 518, of the rotating shaft 53, the long bevel gear 54 is meshed with the wide bevel gear 55 which is rotatably connected to the angle mechanism groove 518, the wide bevel gear 55 is coaxially and fixedly connected with the worm wheel 56 located below the wide bevel gear 55, the worm wheel 56 is meshed with the worm 57 parallel to the width direction of the base plate 1, one end, far away from the worm wheel 56, of the worm 57 penetrates through the sliding block 51, the end, exposed out of the sliding block 51, of the worm 57 is coaxially and fixedly connected with the rotating disc 58, the sliding block 51 is fixedly connected with the dial 59 coaxial with the worm 57 and close to the outer wall of the rotating disc 58, and.

Referring to fig. 1 and 2, a hob motor 512 is fixedly connected to a vertical side surface of the rotating block 52, which deviates from the sliding block 51, an output shaft of the hob motor 512 is rotatably connected to a motor block 519 fixedly connected to the rotating block 52, an output shaft of the hob motor 512 is provided with a rectangular insertion groove 513, the hob 3 includes an insertion block 514 which can be inserted into the insertion groove 513, one end of the insertion block 514, which is far away from the hob motor 512, is fixedly connected to a hob body 515, which is parallel to the width direction of the base plate 1, with the same center line, and one end of the hob body 515, which is far away from the insertion block 514, is fixedly connected to a hob body side block 517, a side surface of the rotating block 52, which is close to the hob body side block 517, is provided with a hob groove 31, which runs through the rotating block 52 and is parallel to the length direction side wall of the base plate 1, the hob body side block 517 is slidably connected to the hob groove 31 along the width direction of the base plate.

Referring to fig. 1 and 2, a clamping table groove 14 parallel to the length direction of the bottom plate 1 is formed in the upper surface of the bottom plate 1, guide rails 15 parallel to the length direction of the clamping table 2 are fixedly connected to two sides of the upper surface of the bottom plate 1 in the length direction of the clamping table groove 14, the guide rails 15 have a T-shaped cross section, the clamping table 2 comprises a clamping slider 45 slidably connected to the guide rails 15 along the length direction of the bottom plate 1, the bottom plate 1 is provided with a clamping sliding mechanism capable of driving the clamping slider 45 to slide along the length direction of the bottom plate 1, the clamping sliding mechanism comprises a sliding screw 16 connected to the clamping slider 45 in a threaded manner and parallel to the length direction of the bottom plate 1, the sliding screw 16 is rotatably connected to the clamping table groove 14, one end of the bottom plate 1 close to the clamping slider 45 is fixedly connected with a sliding motor 17 having an output shaft coaxially and fixedly connected, the centre gripping slewing mechanism that can drive centre gripping turning block 46 pivoted is installed to centre gripping slider 45, centre gripping slewing mechanism includes fixed connection in the inside and output shaft coaxial fixed connection of centre gripping turning block 45 and rotates motor 18 in centre gripping turning block 46 central point, centre gripping turning block 46 upper surface can dismantle and be connected with three-jaw chuck 47, centre gripping turning block 46 upper surface has been seted up and has been circular shape mounting groove 49, three-jaw chuck 47 bottom lateral wall fixedly connected with diameter is greater than centre gripping turning block 46 diameter and pegs graft in mounting groove 49's installation piece 48, installation piece 48 has several threaded connection in centre gripping turning block 46's installation screw 411 around the even grafting of installation piece axis.

Referring to fig. 1 and 2, the width of the bottom plate 1 is the largest in accordance with the width of the hob block 4, a plurality of baffle slots 12 are uniformly arranged on two sides of the bottom plate 1 in the length direction along the length direction of the bottom plate 1, baffle blocks 13 are inserted into the baffle slots 12, the baffle blocks 13 on the same side edge of the bottom plate 1 in the length direction are fixedly connected with a baffle 11 which is parallel to the length direction of the bottom plate 1 and is vertical, and the height of the baffle 11 is proper.

The implementation principle of the embodiment is as follows: the gear blank is clamped and fixed by the three-jaw chuck 47, the turntable 58 is rotated according to requirements to drive the hob 3 to rotate around the axis of the rotating shaft 53 until the indicating block 511 indicates a proper position of the dial 59, then the baffle 11 is correspondingly inserted, then the sliding motor 17 is started to enable the gear blank to be close to the hob block 4, the vertical movement screw motor 44 is started again to enable the position of the hob 3 to move downwards to be close to the gear blank, and the hob motor 512 and the rotating motor 18 are started again to be matched with a proper rotating speed to process the gear blank so as to obtain a needed gear.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A gear hobbing machine for manufacturing a reducer gear comprises a base plate (1), a clamping table (2) which is arranged on the base plate (1) and can clamp a gear blank to rotate and move, and a hob block (4) which is arranged on the base plate (1) and is provided with a hob (3) and can drive the hob (3) to move in the vertical direction and rotate around the axis of the hob (3), wherein the hob (3) is rotatably connected with a height sliding block (5) which is slidably connected with the hob block (4) in the vertical direction, the height sliding block (5) comprises a sliding block (51) which is slidably connected with the hob block (4) in the vertical direction, a rotating block (52) which is rotatably connected with the sliding block (51) and is rotatably connected with the hob (3), the rotating block (52) is coaxially and fixedly connected with a rotating shaft (53) which is rotatably connected with the sliding block (51), the rotating shaft (53) is coaxially and fixedly connected with a long bevel gear (54), the long bevel gear (54) is meshed, the method is characterized in that: the wide bevel gear (55) is coaxially and fixedly connected with a worm wheel (56), the worm wheel (56) is meshed with a worm (57) which is arranged in a penetrating mode and connected to the sliding block (51) in a rotating mode, and one end, far away from the sliding block (51), of the worm (57) is coaxially and fixedly connected with a rotating disc (58).

2. A hobbing machine for manufacturing a reducer gear according to claim 1, characterized in that: the outer wall that slider (51) wore through worm (57) is equipped with and is coaxial calibrated scale (59) with worm (57), and worm (57) fixedly connected with sliding connection is in indicating block (511) of calibrated scale (59).

3. A hobbing machine for manufacturing a reducer gear according to claim 1, characterized in that: the rotary block (52) is fixedly connected with an output shaft which is coaxially and detachably connected with a hob motor (512) of a hob (3), the output shaft of the hob motor (512) is provided with a rectangular insertion groove (513), the hob (3) comprises an insertion block (514) which can be inserted into the insertion groove (513), a hob body (515) which is fixedly connected with the insertion block (514) and processes a gear blank is rotatably connected with the hob body (515) to be far away from one end of the insertion block (514) and is slidably connected with a hob body side block (517) of the rotary block (52) along the central line direction of the insertion groove (513), and the hob body side block (517) is inserted with a fixed screw (516) which is in threaded connection with the rotary block (52).

4. A hobbing machine for manufacturing a reducer gear according to claim 1, characterized in that: height groove (41) have been seted up in hobbing cutter piece (4), and height groove (41) rotate to be connected with and are vertical and threaded connection in the perpendicular screw rod (42) that moves of slider (51), and slider (51) are worn to establish and sliding connection has and is vertical and fixed connection in polished rod (43) of height groove (41), and hobbing cutter piece (4) are equipped with output shaft coaxial fixed connection and move screw motor (44) in the perpendicular screw rod (42) that moves.

5. A hobbing machine for manufacturing a reducer gear according to claim 1, characterized in that: the clamping table (2) comprises a clamping slide block (45) which is connected to the bottom plate (1) in a sliding mode along the length direction of the bottom plate (1), a clamping rotating block (46) which is connected to the upper portion of the clamping slide block (45) in a rotating mode, a three-jaw chuck (47) which is arranged on the clamping rotating block (46) and can clamp a gear blank, the bottom plate (1) is provided with a clamping sliding mechanism which can drive the clamping slide block (45) to slide along the length direction of the bottom plate (1), and the clamping slide block (45) is provided with a clamping rotating mechanism which can drive the clamping rotating block (46) to rotate around the center line.

6. A hobbing machine for manufacturing a reducer gear according to claim 5, characterized in that: the clamping and rotating block (46) is characterized in that an installation groove (49) is formed in the upper surface of the clamping and rotating block (46), the three-jaw chuck (47) is fixedly connected with an installation block (48) which can be abutted to the clamping and rotating block (46) and is inserted into the installation groove (49), and the installation block (48) is inserted with an installation screw (411) which is connected to the installation groove (49) in a threaded mode.

7. A hobbing machine for manufacturing a reducer gear according to claim 5, characterized in that: the width of the clamping table (2) is smaller than that of the bottom plate (1), and the two side edges of the length direction of the bottom plate (1) are provided with baffle plates (11) which are vertical and parallel to the length direction of the bottom plate (1).

8. A hobbing machine for manufacturing a reducer gear according to claim 7, characterized in that: baffle grooves (12) are formed in two sides of the bottom plate (1) in the length direction, and baffle blocks (13) fixedly connected to the baffles (11) and facing the plane of the bottom plate (1) are inserted into the baffle grooves (12).