CN216938784U

CN216938784U - Tool rest angle adjusting device for gear hobbing machine

Info

Publication number: CN216938784U
Application number: CN202122782072.4U
Authority: CN
Inventors: 金东升
Original assignee: Isnt Suzhou Machine Tools Co ltd
Current assignee: Isnt Suzhou Machine Tools Co ltd
Priority date: 2021-11-15
Filing date: 2021-11-15
Publication date: 2022-07-12
Anticipated expiration: 2031-11-15

Abstract

The utility model provides a tool rest angle adjusting device for a gear hobbing machine, which comprises a machine shell plate and a rotary drum rotatably connected on the machine shell plate, wherein a partition plate is fixedly connected to the inner wall of the rotary drum, a main shaft is rotatably connected to the partition plate, inner teeth are arranged on the inner wall of the rotary drum, a gear III is fixedly connected to the main shaft, a plurality of gears IV are arranged inside the rotary drum and are meshed with the gear III and the inner teeth of the inner wall of the rotary drum, connecting pieces are rotatably connected to two sides of the gear IV, the middle parts of the connecting pieces are rotatably connected to the outer wall of the main shaft, one end of the main shaft is fixedly connected with a gear I through screws, the outer wall of the gear I is connected with a driving mechanism through a chain, the outer wall of the rotary drum is connected with a transmission mechanism, outer teeth are arranged on the outer wall of the rotary drum, and a locking mechanism is meshed with the outer wall of the rotary drum through the outer teeth; make the rotary drum stall through locking mechanism and external tooth, locking mechanism can avoid the rotary drum to take place to rotate, influences the machining precision.

Description

Tool rest angle adjusting device for gear hobbing machine

Technical Field

The utility model relates to the technical field of gear hobbing machines, in particular to a tool rest angle adjusting device for a gear hobbing machine.

Background

The hobbing machine is one of the most widely used gear cutting machines, and can cut straight teeth, helical cylindrical gears, worm gears, chain wheels, etc. A gear processing machine for processing straight teeth, helical teeth, herringbone cylindrical gears and worm gears by a hob according to a generating method. When the machine tool uses a special hob, various workpieces with special tooth shapes such as a spline, a chain wheel and the like can be machined.

For example, publication numbers are: CN212094704U patent, including a knife rest disc, an oil cylinder and a casing plate, the casing plate is provided with an opening, the knife rest disc is installed in the opening through a bearing, one side of the casing plate is welded with a lantern ring through a support rod, the oil cylinder is installed in the lantern ring through a bolt, the top of the oil cylinder is installed with a fixing piece through a bolt, a fixing rod is welded on the fixing piece, the top of the fixing rod is welded with a clamping piece group, a connecting rod is installed in the clamping piece group through a rotating shaft, one end of the connecting rod is welded with a sleeve, both ends of one side of the knife rest disc are welded with placing pieces, the inner side of the placing pieces is welded with a straight rod, the sleeve is sleeved on the straight rod through a bearing, the other side of the knife rest disc is provided with a containing groove and a track groove, both sides of the inner wall of the containing groove are provided with clamping grooves, and moving blocks are clamped in the containing grooves; however, the clamping piece set used in the device is easy to shake, so that the adjusting angle may change, and the processing precision is affected; therefore, a tool rest angle adjusting device for a gear hobbing machine is provided.

SUMMERY OF THE UTILITY MODEL

Accordingly, embodiments of the present invention are directed to a tool holder angle adjustment device for a gear hobbing machine, which solves or alleviates the problems of the prior art, and provides at least one useful choice.

The technical scheme of the embodiment of the utility model is realized as follows: the rotary drum that rotates to connect on casing board and the casing board, the inner wall fixedly connected with baffle of rotary drum rotates on the baffle and is connected with the main shaft, the inner wall of rotary drum is provided with the internal tooth, fixedly connected with gear three on the main shaft, the inside of rotary drum is provided with a plurality of gears four, and a plurality of gears four are connected with the internal tooth meshing of gear three and rotary drum inner wall, and the both sides of a plurality of gears four are all rotated and are connected with the connecting piece, and the middle part of a plurality of connecting pieces is rotated and is connected in the outer wall of main shaft, screw fixedly connected with gear one is passed through to the one end of main shaft, the outer wall of gear one is connected with actuating mechanism through the chain, the outer wall connection of rotary drum has drive mechanism, the outer wall of rotary drum is provided with the external tooth, and the outer wall of rotary drum is connected with locking mechanism through external tooth meshing.

In some embodiments, a plurality of connecting rods are fixedly connected to one side of the rotating drum, and the other ends of the connecting rods are rotatably connected to the outer wall of the main shaft through bearings.

In some embodiments, the driving mechanism comprises a motor and a transmission fixed on one side of the casing plate, transmission wheels are arranged on an output shaft of the motor and one side of the transmission, the two transmission wheels are connected through a belt, a second gear is arranged on one side of the transmission, the outer wall of the second gear is meshed with a chain, and the chain is meshed with the outer wall of the first gear.

In some embodiments, the transmission mechanism comprises a first conical gear fixedly connected with one end of the main shaft through a screw, a plurality of shells are fixedly connected with the outer wall of the rotary drum, a second rotary rod is rotatably connected to the outer wall of the rotary drum, a third conical gear is fixedly connected to two ends of the second rotary rod, a first rotary rod is rotatably connected to the inner part of each shell through a fixing support, a fourth conical gear is fixedly connected to two ends of the first rotary rod, the first rotary rod is meshed with one end of the second rotary rod through the fourth conical gear and the third conical gear, and a rotating shaft is arranged between the shells.

In some embodiments, one end of the rotating shaft is rotatably connected to the side wall of the housing, the other end of the rotating shaft penetrates through the side wall of the housing and is fixedly connected with a second bevel gear, the second bevel gear is in meshed connection with a fourth bevel gear at one end of the first rotating rod, and a hobbing cutter is arranged on the outer wall of the rotating shaft.

In some embodiments, the locking mechanism comprises a fixed plate fixedly connected to one side of the casing plate and a fixed rod, a gear five is rotatably connected to an outer wall of the fixed rod, the gear five is engaged with external teeth of an outer wall of the drum, a telescopic rod is fixedly connected to one side of the casing plate, and a movable plate is fixedly connected to one end of the telescopic rod.

In some embodiments, friction plates are disposed on one side of the movable plate and an inner side of the fixed plate.

In some embodiments, a plurality of said gears four are fitted with gears three and internal teeth.

Due to the adoption of the technical scheme, the embodiment of the utility model has the following advantages:

1. the utility model provides a knife rest angle adjusting device that gear hobbing machine was used, angular adjustment finishes the back, make rotary drum stall through locking mechanism and external tooth, at this moment, the main shaft makes a plurality of gears four rotations through gear three, because the rotary drum is in the lock-out condition, can not rotate, consequently, a plurality of gears four rotates on the internal tooth of rotary drum inner wall, drive a plurality of connecting pieces and rotate in the outer wall of main shaft, the main shaft passes through drive mechanism and drives the gear hobbing cutter operation, treat the machined part and process, locking mechanism can avoid the rotary drum to take place to rotate, influence the machining precision.

2. The utility model provides a knife rest angle adjusting device that gear hobbing machine was used, the three rotations of spindle drive gear, be connected with three meshing of gear because of a plurality of gears are four, so the direction of rotation of a plurality of gears is unanimous, when needs angle regulation, open locking mechanism, make the rotary drum can rotate on the casing board, at this moment, the connecting piece is in quiescent condition for the rotary drum, a plurality of gears are four to be connected the drive rotary drum through the meshing with gear three and internal tooth and rotate, thereby can adjust the angle of gear hobbing cutter, make the angle of adjustment more accurate, can process the gear of different shapes.

3. A motor provides power for a transmission through a driving wheel and a belt, the transmission adjusts the running speed of a gear II to provide different running speeds for a spindle, and the adjusting angle and the running speed during machining are adjusted, so that the adjusting angle of a hobbing cutter is more accurate.

4. The utility model provides a knife rest angle adjusting device that gear hobbing machine used, the adjustment angle finishes the back and laminates one side of fly leaf in one side of five gears through the telescopic link, cliies five gears through the friction disc that sets up on fly leaf and the fixed plate, and the rotation of five gears is restricted to frictional force, because five gears are connected in the external tooth meshing, consequently the effectual rotation of restriction rotary drum.

The foregoing summary is provided for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will be readily apparent by reference to the drawings and following detailed description.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments or technical descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

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

FIG. 2 is another schematic structural view of FIG. 1;

FIG. 3 is a partial cross-sectional view of the present invention;

FIG. 4 is a partial block diagram of the present invention;

figure 5 is a detail view of the locking mechanism of figure 2.

Reference numerals are as follows:

1-machine shell plate, 2-rotary drum, 3-shell, 4-rotary shaft, 5-hobbing cutter, 6-locking mechanism, 7-gear I, 8-motor, 9-belt, 10-speed changer, 11-gear II, 12-chain, 13-main shaft, 14-bevel gear I, 15-bevel gear II, 16-rotary rod I, 17-rotary rod II, 18-internal tooth, 19-connecting rod, 20-connecting piece, 21-external tooth, 22-gear III, 23-partition plate, 24-gear IV, 25-fixing rod, 26-gear V, 27-fixing plate, 28-movable plate and 29-telescopic rod.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

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

As shown in fig. 1-5, a tool rest angle adjusting device for a gear hobbing machine comprises a housing plate 1 and a rotary drum 2 rotatably connected to the housing plate 1, a partition 23 is fixedly connected to the inner wall of the rotary drum 2, a main shaft 13 is rotatably connected to the partition 23, inner teeth 18 are provided on the inner wall of the rotary drum 2, a gear three 22 is fixedly connected to the main shaft 13, a plurality of gears four 24 are provided inside the rotary drum 2, the plurality of gears four 24 are engaged with the gear three 22 and the inner teeth 18 on the inner wall of the rotary drum 2, connecting members 20 are rotatably connected to both sides of the plurality of gears four 24, the middle portions of the plurality of connecting members 20 are rotatably connected to the outer wall of the main shaft 13, a plurality of connecting rods 19 are fixedly connected to one side of the rotary drum 2, the other end of the connecting rods 19 is rotatably connected to the outer wall of the main shaft 13 through bearings, one end of the main shaft 13 is fixedly connected with a gear one 7 through screws, the outer wall of the first gear 7 is connected with a driving mechanism through a chain 12, the outer wall of the rotary drum 2 is connected with a transmission mechanism, the outer wall of the rotary drum 2 is provided with external teeth 21, and the outer wall of the rotary drum 2 is connected with a locking mechanism 6 through the external teeth 21 in a meshing manner; the driving mechanism drives the main shaft 13 to rotate through the chain 12 and the first gear 7, the main shaft 13 drives the third gear 22 to rotate, the plurality of fourth gears 24 are meshed with the third gear 22, so that the rotating directions of the plurality of fourth gears 24 are consistent, when the angle needs to be adjusted, the locking mechanism 6 is opened, the rotary drum 2 can rotate on the shell plate 1, at the moment, the connecting piece 20 is in a static state relative to the rotary drum 2, the plurality of fourth gears 24 are meshed with the third gear 22 and the inner teeth 18 to drive the rotary drum 2 to rotate, the angle of the hobbing cutter 5 can be adjusted, the adjusted angle is more accurate, and gears of different shapes can be processed; after the angular adjustment finishes, make rotary drum 2 stall through locking mechanism 6 and external tooth 21, at this moment, main shaft 13 makes four 24 rotations of a plurality of gears through three 22 gears, because rotary drum 2 is in the lock-out condition, can not rotate, consequently four 24 rotations of a plurality of gears are on the internal tooth 18 of 2 inner walls of rotary drum, drive a plurality of connecting pieces 20 and rotate in the outer wall of main shaft 13, main shaft 13 passes through drive mechanism and drives hobbing cutter 5 operation, treat the machined part and process, locking mechanism 6 can avoid rotary drum 2 to take place to rotate, influence the machining precision.

In the embodiment, in order to adjust the adjustment angle and the operation speed during processing, the driving mechanism comprises a motor 8 and a transmission 10 which are fixed on one side of the casing plate 1, wherein transmission wheels are arranged on an output shaft of the motor 8 and one side of the transmission 10, the two transmission wheels are connected through a belt 9, a second gear 11 is arranged on one side of the transmission 10, the outer wall of the second gear 11 is meshed with a chain 12, and the chain 12 is meshed with the outer wall of the first gear 7; the motor 8 provides power for the transmission 10 through the driving wheel and the belt 9, the running speed of the second gear 11 is adjusted through the transmission 10, different running speeds are provided for the spindle 13, the adjusting angle and the running speed during machining are adjusted, and the adjusting angle of the hobbing cutter 5 is more accurate.

The transmission mechanism comprises a first conical gear 14 fixedly connected with one end of a main shaft 13 through a screw, the outer wall of the rotary drum 2 is fixedly connected with a plurality of shells 3, the number of the shells 3 is two, a second rotating rod 17 is rotatably connected to the outer wall of the rotating cylinder 2, two ends of the second rotating rod 17 are fixedly connected with a third conical gear, the inner part of the shell 3 is rotatably connected with a first rotating rod 16 through a fixed support, two ends of the first rotating rod 16 are fixedly connected with a fourth conical gear, one end of the rotating rod I16 and one end of the rotating rod II 17 are meshed and connected with the conical gear III through the conical gear IV, a rotating shaft 4 is arranged among the shells 3, one end of the rotating shaft 4 is rotatably connected to the side wall of each shell 3, the other end of the rotating shaft 4 penetrates through the side wall of each shell 3 and then is fixedly connected with the conical gear II 15, the conical gear II 15 is meshed and connected with the conical gear IV at one end of the rotating rod I16, and the outer wall of each rotating shaft 4 is provided with a hobbing cutter 5; the power of the first bevel gear 14 is transmitted to the second bevel gear 15 through the second rotating rod 17, the first rotating rod 16, the third plurality of groups of bevel gears and the fourth plurality of groups of bevel gears, and the second bevel gear 15 drives the rotating shaft 4 and the hobbing cutter 5 on the outer wall of the rotating shaft 4 to rotate, so that a workpiece to be machined is machined.

In the present embodiment, in order to limit the rotation of the drum 2 after the angle adjustment is completed, the locking mechanism 6 includes a fixed plate 27 and a fixed rod 25 fixedly connected to one side of the casing plate 1, a gear five 26 is rotatably connected to an outer wall of the fixed rod 25, the gear five 26 is engaged with the external teeth 21 on the outer wall of the drum 2, a telescopic rod 29 is fixedly connected to one side of the casing plate 1, the telescopic rod 29 may be an electric telescopic rod, and may also be an air cylinder or a hydraulic cylinder, in the present embodiment, an electric telescopic rod is preferred, one end of the telescopic rod 29 is fixedly connected to a movable plate 28, and one side of the movable plate 28 and the inner side of the fixed plate 27 are both provided with friction plates; after the angle adjustment is completed, one side of the movable plate 28 is attached to one side of the five gear 26 through the telescopic rod 29, the five gear 26 is clamped through friction plates arranged on the movable plate 28 and the fixed plate 27, the rotation of the five gear 26 is limited through friction force, and the five gear 26 is meshed with the external teeth 21, so that the rotation of the rotary drum 2 is effectively limited.

The working principle is as follows: the power generated by a motor 8 drives a transmission 10 through a transmission wheel and a belt 9, the running speed of a gear II 11 is adjusted through the transmission 10, the gear II 11 drives a gear I7 and a main shaft 13 to rotate through a chain 12, when the angle needs to be adjusted, an expansion link 29 is controlled to be shortened to enable a movable plate 28 to retreat, so that a rotary drum 2 can rotate on a machine shell plate 1, at the moment, a connecting piece 20 is in a static state relative to the rotary drum 2, a plurality of gears IV 24 are connected with the gears III 22 and inner teeth 18 in a meshed mode, the gears III 22 drive a plurality of gears IV 24 to rotate, the gears IV 24 drive the rotary drum 2 to rotate through the meshed mode with the inner teeth 18, therefore, the angle of a hobbing cutter 5 can be adjusted, the adjusted angle is more accurate, and gears of different shapes can be processed; after the angle adjustment is finished, one side of the movable plate 28 is attached to one side of the gear five 26 through the telescopic rod 29, the gear five 26 is clamped through friction plates arranged on the movable plate 28 and the fixed plate 27, the rotation of the gear five 26 is limited through friction force, the gear five 26 is meshed and connected with the external teeth 21, the rotation of the rotary drum 2 is effectively limited, at the moment, the main shaft 13 enables the gears four 24 to rotate through the gear three 22, and the rotary drum 2 is in a locked state and cannot rotate, so the gears four 24 rotate on the internal teeth 18 on the inner wall of the rotary drum 2, and the connecting pieces 20 are driven to rotate on the outer wall of the main shaft 13; the spindle 13 drives the first conical gear 14 to rotate, the first conical gear is transmitted to the second conical gear 15 through the second rotating rod 17, the first rotating rod 16, the third conical gear and the fourth conical gear, and the second conical gear 15 drives the rotating shaft 4 and the hobbing cutter 5 on the outer wall of the rotating shaft 4 to rotate, so that a workpiece to be machined is machined.

The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive various changes or substitutions within the technical scope of the present invention, and these should be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. The utility model provides a knife rest angle adjusting device that gear hobbing machine was used, includes that shell plate (1) and shell plate (1) go up rotary drum (2) of rotation connection, its characterized in that: the inner wall of the rotary drum (2) is fixedly connected with a partition plate (23), the partition plate (23) is connected with a main shaft (13) in a rotating mode, inner teeth (18) are arranged on the inner wall of the rotary drum (2), a gear III (22) is fixedly connected onto the main shaft (13), a plurality of gears IV (24) are arranged inside the rotary drum (2), the gears IV (24) are meshed with the gear III (22) and the inner teeth (18) on the inner wall of the rotary drum (2), connecting pieces (20) are rotatably connected to two sides of the gears IV (24), the middle portions of the connecting pieces (20) are rotatably connected to the outer wall of the main shaft (13), one end of the main shaft (13) is fixedly connected with a gear I (7) through a screw, the outer wall of the gear I (7) is connected with a driving mechanism through a chain (12), the outer wall of the rotary drum (2) is connected with a transmission mechanism, and outer teeth (21) are arranged on the outer wall of the rotary drum (2), the outer wall of the rotary drum (2) is engaged and connected with a locking mechanism (6) through external teeth (21).

2. The tool holder angle adjusting apparatus for a gear hobbing machine according to claim 1, characterized in that: one side of the rotary drum (2) is fixedly connected with a plurality of connecting rods (19), and the other ends of the connecting rods (19) are rotatably connected to the outer wall of the main shaft (13) through bearings.

3. The tool holder angle adjusting device for a hobbing machine according to claim 1, characterized in that: the driving mechanism comprises a motor (8) and a transmission (10) which are fixed on one side of the casing plate (1), driving wheels are arranged on an output shaft of the motor (8) and one side of the transmission (10) respectively, the two driving wheels are connected through a belt (9), a second gear (11) is arranged on one side of the transmission (10), the outer wall of the second gear (11) is meshed with a chain (12), and the chain (12) is meshed with the outer wall of the first gear (7).

4. The tool holder angle adjusting apparatus for a gear hobbing machine according to claim 1, characterized in that: the transmission mechanism comprises a first conical gear (14) with one end of a main shaft (13) fixedly connected with a screw, a plurality of shells (3) fixedly connected with the outer wall of the rotary drum (2), a second rotary rod (17) is connected to the outer wall of the rotary drum (2) in a rotating mode, a third conical gear is fixedly connected to the two ends of the second rotary rod (17), a first rotary rod (16) is connected to the inside of the shell (3) in a rotating mode through a fixing support, a fourth conical gear is fixedly connected to the two ends of the first rotary rod (16), the first rotary rod (16) and one end of the second rotary rod (17) are connected through the fourth conical gear and the third conical gear in a meshing mode, and a plurality of rotating shafts (4) are arranged between the shells (3).

5. The tool holder angle adjusting apparatus for a hobbing machine according to claim 4, characterized in that: the one end of pivot (4) is rotated and is connected in the lateral wall of shell (3), and fixedly connected with conical gear two (15) behind the lateral wall that shell (3) was run through to the other end of pivot (4), and conical gear two (15) are connected with the four meshing of conical gear of bull stick one (16) one end, be provided with on the outer wall of pivot (4) hobbing cutter (5).

6. The tool holder angle adjusting device for a hobbing machine according to claim 1, characterized in that: the locking mechanism (6) comprises a fixed plate (27) and a fixed rod (25) which are fixedly connected with one side of the machine shell plate (1), the outer wall of the fixed rod (25) is rotatably connected with a fifth gear (26), the fifth gear (26) is meshed with the outer teeth (21) of the outer wall of the rotary drum (2), a telescopic rod (29) is fixedly connected with one side of the machine shell plate (1), and a movable plate (28) is fixedly connected with one end of the telescopic rod (29).

7. The tool holder angle adjusting apparatus for a hobbing machine according to claim 6, characterized in that: friction plates are arranged on one side of the movable plate (28) and the inner side of the fixed plate (27).

8. The tool holder angle adjusting apparatus for a gear hobbing machine according to claim 1, characterized in that: a plurality of gears four (24) are adapted to gear three (22) and internal teeth (18).