CN216758458U

CN216758458U - Disc gear gapless gear hobbing tool

Info

Publication number: CN216758458U
Application number: CN202123085497.6U
Authority: CN
Inventors: 蒋卓辰
Original assignee: Changzhou Shuoren Environmental Protection Machinery Technology Co ltd
Current assignee: Changzhou Shuoren Environmental Protection Machinery Technology Co ltd
Priority date: 2021-12-09
Filing date: 2021-12-09
Publication date: 2022-06-17
Anticipated expiration: 2031-12-09

Abstract

The utility model discloses a gapless hobbing tool for disc gears, which belongs to the technical field of disc gear machining tools and comprises an L-shaped seat, disc gears, a rotating shaft assembly, a lower rotating shaft, an upper rotating shaft and a lifting mechanism, wherein the bottom end of the lower rotating shaft is rotatably arranged in one side of the bottom end of the L-shaped seat, the top end of the upper rotating shaft is rotatably arranged in one end of the lifting mechanism, the disc gears are arranged on the rotating shaft assembly, the top end and the bottom end of the rotating shaft assembly are respectively arranged in the upper rotating shaft and the lower rotating shaft in a sliding manner, the lifting mechanism comprises a lifting assembly and an elastic assembly, the lifting assembly is arranged in one side of the upper part of the L-shaped seat, the upper rotating shaft is rotatably arranged at one end of the lifting assembly, and the elastic assembly is fixedly arranged on the top end of the lifting assembly. The tool is suitable for disc gears of different specifications, and is wide in application range and high in stability.

Description

Disc gear gapless gear hobbing tool

Technical Field

The utility model relates to the technical field of disc gear machining tools, in particular to a disc gear gapless hobbing tool.

Background

As is known to all, gear hobbing is the most widely applied rough machining procedure of a gear blank in the gear machining industry at present, the machining precision directly leads to the requirement of tooth surface precision of a subsequent finish machining procedure, and the tool design is a key factor influencing the machining efficiency and the machining precision.

The installation pivot on the existing gear hobbing frock can't be dismantled, when adding man-hour to the dish class gear of different specifications, need change different gear hobbing frocks, this just leads to different dish class gears to need be equipped with corresponding work, leads to the cost increase of dish class gear production and processing, and the application scope of gear hobbing frocks is little.

Therefore, the development of a gapless hobbing tool for the disc gear is necessary.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a zero-clearance hobbing tool for disc gears, and aims to solve the problems that in the background art, an installation rotating shaft on the existing hobbing tool cannot be disassembled, and when disc gears with different specifications are machined, different hobbing tools need to be replaced, so that corresponding work needs to be carried out on different disc gears, the production and machining cost of the disc gears is increased, and the application range of the hobbing tool is small.

In order to achieve the purpose, the utility model provides the following technical scheme: a zero-clearance hobbing tool for a disc gear comprises an L-shaped seat, a disc gear, a rotating shaft assembly, a lower rotating shaft, an upper rotating shaft and a lifting mechanism, wherein the bottom end of the lower rotating shaft is rotatably installed in one side of the bottom end of the L-shaped seat, the top end of the upper rotating shaft is rotatably installed in one end, close to the lower rotating shaft, of the lifting mechanism, the disc gear is installed on the rotating shaft assembly, and the top end and the bottom end of the rotating shaft assembly are respectively arranged in the upper rotating shaft and the lower rotating shaft in a sliding mode;

the lifting mechanism comprises a lifting assembly and an elastic assembly, the lifting assembly is arranged on the upper portion of the L-shaped seat and is far away from one side of the lower rotating shaft, the upper rotating shaft is installed in one end, far away from the L-shaped seat, of the lifting assembly, and the elastic assembly is fixedly installed at the top end of the lifting assembly.

Preferably, the pivot subassembly includes the pivot, the fixed cover in well lower part of pivot is equipped with the backup pad, the middle part slip cover of pivot is equipped with dish class gear, the pivot is provided with the screw thread on the surface, the threaded connection that the pivot set up on the surface has lock nut, the top and the bottom symmetry fixed mounting of pivot have the cylinder piece, and is two sets of four sides of cylinder piece are all even fixed mounting have spacing, the cylinder piece that pivot top and bottom set up and four spacing of group slide respectively to set up in last pivot and lower pivot.

Preferably, the inner wall of the disc-like gear is in sliding fit with the side edge of the rotating shaft, the bottom end face of the disc-like gear is in fit with the top end face of the supporting plate, and the top end face of the disc-like gear is in fit with the bottom end face of the locking nut.

Preferably, the top of lower pivot and the bottom of going up the pivot all are provided with the spacing groove, the cylinder piece that pivot top and bottom set up and four group's spacing strip slide respectively to set up in the last pivot that sets up with the position department, the side of cylinder piece and the side of spacing strip all with the inner wall sliding fit in spacing groove.

Preferably, lifting unit includes the lead screw, the lead screw rotates to be installed in one side upper portion of pivot is kept away from down at L shape seat, the threaded connection that the lead screw set up on the surface has the mounting panel, the one end that the mounting panel is close to lower pivot is rotated and is installed the pivot, the top fixed mounting of lead screw has the knob.

Preferably, an elastic assembly is fixedly mounted at the top end of the screw rod, and the knob is arranged above the L-shaped seat.

Preferably, one side upper portion that the pivot was kept away from down to L shape seat is provided with the spout, the one end that the mounting panel is close to the spout slides and sets up in the spout, and the mounting panel is kept away from the one end side of last pivot and is slided the laminating with the inner wall of spout.

Preferably, the elastic assembly comprises a concave disc, the concave disc is fixedly installed on the top end of the screw rod, a coil spring is sleeved on the concave disc in a sliding mode, two ends of the coil spring are fixedly embedded into the concave disc and the L-shaped seat respectively, and the coil spring is in a compression state.

Compared with the prior art, the utility model has the beneficial effects that: be provided with elevating system, the pivot subassembly, lower pivot and last pivot, fix the disk gear through the pivot subassembly, when the pivot subassembly needs to be changed, only need to drive through elevating system and go up the pivot rebound and can dismantle the pivot subassembly and change, the realization is changed the pivot subassembly of corresponding specification according to the specification of processing dish class gear, operation steps is simple, the very big pivot subassembly that has made things convenient for the staff to change, the manufacturing cost of dish class gear has been reduced, make the applicable different specifications's of this frock dish class gear, application scope is wide, it makes this frock stability good when using to be provided with elastic component.

Drawings

FIG. 1 is a front view of the gear hobbing tool of the present invention;

FIG. 2 is a diagram of a gear hobbing tool of the present invention;

FIG. 3 is a perspective view of the lower spindle of the present invention;

FIG. 4 is a perspective view of the connection between the cylindrical block and the position-limiting strip according to the present invention.

In the figure: 1-L-shaped seat, 2-disc-type gear, 3-rotating shaft, 4-supporting plate, 5-locking nut, 6-lower rotating shaft, 7-knob, 8-upper rotating shaft, 9-mounting plate, 10-cylindrical block, 11-limiting strip, 12-limiting groove, 13-screw rod, 14-sliding groove, 15-concave disc and 16-coil spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model provides the following technical scheme: a disc gear zero-clearance hobbing tool can effectively realize the replacement of rotating shaft components with corresponding specifications according to the specifications of a processed disc gear 2 in the using process, has simple operation steps, greatly facilitates the replacement of the rotating shaft components by workers, ensures that the tool can be suitable for disc gears 2 with different specifications, has wide application range and strong stability, adds the rotating shaft components, the lower rotating shaft 6, the upper rotating shaft 8, the lifting components and the elastic components, please refer to figures 1-4, comprises an L-shaped seat 1 and the disc gear 2, and also comprises the rotating shaft components, the lower rotating shaft 6, the upper rotating shaft 8 and a lifting mechanism, the bottom end of the lower rotating shaft 6 is rotatably arranged in one side of the bottom end of the L-shaped seat 1, the top end of the upper rotating shaft 8 is rotatably arranged in one end of the lifting mechanism close to the lower rotating shaft 6, the disc gear 2 is arranged on the rotating shaft components, and the top end and the bottom end of the rotating shaft components are respectively arranged in the upper rotating shaft 8 and the lower rotating shaft 6 in a sliding way, the lifting mechanism comprises a lifting component and an elastic component, the lifting component is arranged on the upper portion of the L-shaped seat 1 and far away from one side of the lower rotating shaft 6, the lifting component is far away from one end of the L-shaped seat 1, the upper rotating shaft 8 is installed in a rotating mode, and the elastic component is fixedly installed on the top end of the lifting component.

The rotating shaft assembly comprises a rotating shaft 3, a supporting plate 4 is fixedly sleeved at the middle lower part of the rotating shaft 3, a disc gear 2 is slidably sleeved at the middle part of the rotating shaft 3, threads are arranged on the surface of the rotating shaft 3, a locking nut 5 is connected to the threads arranged on the surface of the rotating shaft 3, the disc gear 2 is fixed on the rotating shaft 3 through the locking nut 5 and the supporting plate 4, cylindrical blocks 10 are symmetrically and fixedly arranged at the top end and the bottom end of the rotating shaft 3, limit strips 11 are uniformly and fixedly arranged on four sides of the two groups of cylindrical blocks 10, the cylindrical blocks 10 and the four groups of limit strips 11 arranged at the top end and the bottom end of the rotating shaft 3 are respectively slidably arranged in an upper rotating shaft 8 and a lower rotating shaft 6, the inner wall of the disc gear 2 is slidably attached to the side edge of the rotating shaft 3, the bottom end face of the disc gear 2 is attached to the top end face of the supporting plate 4, the top end face of the disc gear 2 is attached to the bottom end face of the locking nut 5, limit grooves 12 are arranged at the top end of the lower rotating shaft 6 and the bottom end of the upper rotating shaft 8, in cylinder piece 10 and the four spacing strips of group 11 that 3 tops of pivot and bottom set up slided respectively and set up the last pivot 8 that sets up with position department, slide into spacing inslot 12 through spacing strip 11 and with pivot 3, lower pivot 6 and last pivot 8 carry on spacingly, thereby pivot 8 in the realization,

lower pivot

6 and 3 synchronous rotations of pivot, the side of cylinder piece 10 all with the inner wall of spacing groove 12 with the side of spacing strip 11 the laminating of sliding, can avoid spacing strip 11 to slide in spacing groove 12.

Lifting unit includes lead screw 13, lead screw 13 rotates to be installed in one side upper portion of pivot 6 under keeping away from L shape seat 1, the threaded connection that lead screw 13 set up on the surface has mounting panel 9, lead screw 13 rotates and can realize that mounting panel 9 moves in vertical direction with the cooperation of mounting panel 9, mounting panel 9 is close to pivot 6's one end rotation installation pivot 8 down, the top fixed mounting of lead screw 13 has knob 7, knob 7 is convenient for the staff to rotate lead screw 13, fixed mounting elastic component on the top of lead screw 13, knob 7 sets up the top at L shape seat 1, one side upper portion that pivot 6 was kept away from down to L shape seat 1 is provided with spout 14, the one end that mounting panel 9 is close to spout 14 slides and sets up in spout 14, and mounting panel 9 keeps away from the one end side of pivot 8 and the sliding fit of spout 14, avoid mounting panel 9 to rotate along with lead screw 13.

The elastic assembly comprises a concave disc 15, the concave disc 15 is fixedly installed at the top end of the lead screw 13, a coil spring 16 is sleeved on the concave disc 15 in a sliding mode, the coil spring 16 is used for enabling the lead screw 13 not to easily rotate under the condition of no manual operation, even if the lead screw 13 rotates, the lead screw can reset under the acting force of the coil spring 16, therefore, the tool is better in stability, two ends of the coil spring 16 are respectively fixedly embedded into the concave disc 15 and the L-shaped seat 1, and the coil spring 16 is in a compression state.

The working principle is as follows: when the disc gear 2 is used, the disc gear 2 is fixed on the rotating shaft 3 through the supporting plate 4 and the locking nut 5, the cylindrical block 10 and the limiting strips 11 slide into the limiting grooves 12, namely the rotating shaft 3, the lower rotating shaft 6 and the upper rotating shaft 8 synchronously rotate, the disc gear 2 and the rotating shaft 3 can be driven to rotate through the gear hobbing machine to process the disc gear 2, when different rotating shafts 3 are required to be replaced according to gears of different models, a worker only needs to rotate the knob 7, namely the screw rod 13 and the concave disc 15 rotate, at the moment, the coil spring 16 is further compressed, the screw rod 13 rotates to be matched with the mounting plate 9, the mounting plate 9 and the upper rotating shaft 8 can move in the vertical direction, the cylindrical block 10 and the four groups of limiting strips 11 arranged at the top end of the rotating shaft 3 can slide out of the knob 7 arranged at the bottom end of the upper rotating shaft 8, and only needs to pull the rotating shaft 3 to move upwards after the mounting plate 9 rises to a proper position, the cylindrical block 10 and four groups of limit strips 11 arranged at the bottom end of the rotating shaft 3 can slide out from the lower rotating shaft 6, the rotating shaft 3 can be disassembled, then the gear is sleeved on the corresponding rotating shaft 3, the disc-type gear 2 is fixed on the corresponding rotating shaft 3 through the threaded connection of the locking nut 5 and the rotating shaft 3, then the cylindrical block 10 and the four groups of limit strips 11 arranged at the bottom end of the rotating shaft 3 are inserted into the knob 7 on the lower rotating shaft 6, the knob 7 is loosened, the lead screw 13 rotates reversely by the acting force of the coil spring 16, namely, the mounting plate 9 and the upper rotating shaft 8 move downwards in the vertical direction, namely, the cylindrical block 10 and the four groups of limit strips 11 on the top end of the rotating shaft 3 can slide into the knob 7 on the upper rotating shaft 8, the rotating shaft 3 can be replaced, the operation steps are simple, the rotating shaft 3 can be greatly convenient for workers to replace the rotating shaft 3, so that the tool can be suitable for the disc-type gears 2 with different specifications, the application range is wide, and the condition that the coil spring 16 is in the compression state all the time can avoid the knob 7 to receive vibrations leads to the knob 7 to rotate to the knob 7 interior roll-off of cylinder piece 10 and four groups of spacing strips 11 on avoiding the pivot 3 top from going up the pivot 8 makes this frock stability better.

While the utility model has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the various features of the embodiments disclosed herein may be used in any combination, provided that there is no structural conflict, and the combinations are not exhaustively described in this specification merely for the sake of brevity and conservation of resources. Therefore, it is intended that the utility model not be limited to the particular embodiments disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. A zero-clearance hobbing tool for a disc gear comprises an L-shaped seat (1), a disc gear (2), a rotating shaft assembly, a lower rotating shaft (6), an upper rotating shaft (8) and a lifting mechanism, wherein the bottom end of the lower rotating shaft (6) is rotatably installed in one side of the bottom end of the L-shaped seat (1), the top end of the upper rotating shaft (8) is rotatably installed in one end, close to the lower rotating shaft (6), of the lifting mechanism, the disc gear (2) is installed on the rotating shaft assembly, and the top end and the bottom end of the rotating shaft assembly are respectively arranged in the upper rotating shaft (8) and the lower rotating shaft (6) in a sliding mode;

elevating system includes lifting unit and elastic component, lifting unit sets up in one side of pivot (6) down is kept away from on the upper portion of L shape seat (1), lifting unit keeps away from the one end internal rotation installation pivot (8) of L shape seat (1), elastic component fixed mounting is on lifting unit's top.

2. The disc gear gapless hobbing tool according to claim 1, characterized in that: the rotating shaft assembly comprises a rotating shaft (3), a supporting plate (4) is fixedly sleeved on the middle lower portion of the rotating shaft (3), a disc gear (2) is sleeved on the middle portion of the rotating shaft (3) in a sliding mode, threads are arranged on the surface of the rotating shaft (3), the rotating shaft (3) is connected with a locking nut (5) through the threads arranged on the surface, cylindrical blocks (10) are symmetrically and fixedly arranged at the top end and the bottom end of the rotating shaft (3), two groups of limiting strips (11) are uniformly and fixedly arranged on four sides of each cylindrical block (10), and the cylindrical blocks (10) and the four groups of limiting strips (11) arranged at the top end and the bottom end of the rotating shaft (3) are arranged in an upper rotating shaft (8) and a lower rotating shaft (6) in a sliding mode respectively.

3. The disc gear gapless hobbing tool according to claim 1, characterized in that: lifting unit includes lead screw (13), lead screw (13) are rotated and are installed in one side upper portion of pivot (6) under keeping away from in L shape seat (1), lead screw (13) threaded connection who sets up on the surface has mounting panel (9), pivot (8) are installed in the one end rotation that mounting panel (9) are close to pivot (6) down, the top fixed mounting of lead screw (13) has knob (7).

4. The disc gear gapless hobbing tool according to claim 2, characterized in that: the inner wall of the disc-type gear (2) is in sliding fit with the side edge of the rotating shaft (3), the bottom end face of the disc-type gear (2) is in fit with the top end face of the supporting plate (4), and the top end face of the disc-type gear (2) is in fit with the bottom end face of the locking nut (5).

5. The disc gear gapless hobbing tool according to claim 2, characterized in that: the top of lower pivot (6) and the bottom of last pivot (8) all are provided with spacing groove (12), cylinder piece (10) and four group spacing (11) that pivot (3) top and bottom set up slide respectively and set up in last pivot (8) that the same position department set up, the side of cylinder piece (10) and the side of spacing (11) all with the inner wall sliding fit of spacing groove (12).

6. The disc gear gapless hobbing tool according to claim 3, characterized in that: an elastic assembly is fixedly installed on the top end of the screw rod (13), and the knob (7) is arranged above the L-shaped seat (1).

7. The disc gear gapless hobbing tool according to claim 3, characterized in that: one side upper portion of pivot (6) is provided with spout (14) down kept away from in L shape seat (1), the one end that mounting panel (9) are close to spout (14) slides and sets up in spout (14), and mounting panel (9) keep away from the one end side of last pivot (8) and the inner wall of spout (14) and slide the laminating.

8. The disc gear gapless hobbing tool according to claim 6, characterized in that: elastic component includes concave dish (15), concave dish (15) fixed mounting is on the top of lead screw (13), sliding sleeve is equipped with wind spring (16) on concave dish (15), the both ends of wind spring (16) are fixed the embedding respectively and are set up in concave dish (15) and L shape seat (1), wind spring (16) are in compression state.