CN215510043U

CN215510043U - Gear center repeated positioning device for machine tool

Info

Publication number: CN215510043U
Application number: CN202121339576.2U
Authority: CN
Inventors: 李惠民
Original assignee: Xi'an Huixin Gear Co ltd
Current assignee: Xi'an Huixin Gear Co ltd
Priority date: 2021-06-17
Filing date: 2021-06-17
Publication date: 2022-01-14
Anticipated expiration: 2031-06-17

Abstract

The utility model belongs to the technical field of machining, and discloses a gear center repeated positioning device for a machine tool, which comprises a workbench, wherein a base plate is fixedly arranged in the middle of the top of the workbench, a fixed shaft is fixedly arranged in the middle of the top of the base plate, the upper end of the inner part of the fixed shaft is movably connected with an extrusion block, a screwing block is fixedly arranged in the middle of the top of the extrusion block, and the lower end of the fixed shaft is movably connected with four extrusion plates along an annular equal-moment manner. The utility model realizes the advantage of being suitable for gears of various specifications by arranging the fixed shaft, the extrusion block, the extrusion plate and the like, the gear can be sleeved on the fixed shaft, then the screwing block is rotated, the extrusion block slowly moves downwards due to the existence of threads, the lower end of the extrusion block can abut against the extrusion strips on the four sides, and the extrusion plates on the four sides are pushed to slide outwards along the rectangular opening at the lower end of the fixed shaft, so that the aim of being suitable for gears of various specifications can be achieved.

Description

Gear center repeated positioning device for machine tool

Technical Field

The utility model belongs to the technical field of machining, and particularly relates to a gear center repeated positioning device for a machine tool.

Background

The gear is a mechanical element with a rim on which the gear is continuously meshed to transmit motion and power, the gear is applied in transmission very early, at the end of 19 th century, the principle of generating a gear cutting method and the successive occurrence of a special machine tool and a cutter for cutting the gear by using the principle are realized, along with the development of production, the running stability of the gear is emphasized, and the gear is often subjected to a finish machining step after being formed.

The existing gear center repeated positioning device for the machine tool basically adopts a limiting shaft arranged at the center of a workbench so as to fix the center of a gear, then, the two sides of the gear are downwards extruded by threads to fix the workbench and the gear together.

In addition, by adopting the extrusion fixing mode, the fixing device needs to be stirred to move to the upper side of the gear back and forth when the gear fixing device is used, and then the gear fixing device is fixed by rotating and utilizing extrusion.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems, and provides a gear center repeated positioning device for a machine tool, which has the advantages of being suitable for gears of various specifications and good in fixing effect.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a repeated positioner in gear center for lathe, includes the workstation, the middle part fixed mounting at workstation top has the backing plate, the middle part fixed mounting at backing plate top has the fixed axle, the inside upper end swing joint of fixed axle has the extrusion piece, the middle part fixed mounting at extrusion piece top has the piece of twisting, the lower extreme of fixed axle has four stripper plates along annular isometric swing joint, the inboard fixedly connected with extrusion strip of stripper plate, the outside fixedly connected with spring of extrusion strip.

According to a preferable technical scheme, the left end and the right end of the top of the workbench are both fixedly provided with supporting blocks, the supporting blocks are movably connected inside with a rotating rod, the left side of the rotating rod is fixedly connected with a twisting disc, the right end of the rotating rod is in threaded connection with an expansion plate, the left side of the expansion plate is fixedly provided with a connecting block, the right side of the expansion plate is fixedly provided with a flitch, the middle part inside the flitch is movably connected with an inserting plate, and a gear is placed at the top of the backing plate.

According to a preferable technical scheme of the utility model, threads are carved on the outer part of the upper end of the extrusion block and the inner wall of the upper end of the fixed shaft, the lower end of the extrusion block adopts a conical structure, an inclined opening is formed in the inner side of the extrusion strip, when the screwing block is rotated, the extrusion block can slowly move downwards, the lower end of the extrusion block can abut against the extrusion strips on the four sides, and therefore the extrusion plates on the four sides are pushed to slide outwards along the rectangular opening at the lower end of the fixed shaft.

As a preferable technical scheme of the utility model, the middle parts of the workbench and the base plate are provided with circular openings, the middle part of the top of the base plate is provided with a sliding groove positioned outside the circular openings, the middle part of the bottom of the extrusion plate is fixedly provided with a sliding block, when the extrusion strip pushes the extrusion plate to slide outwards along the rectangular openings, the sliding block can also slide outwards along the sliding groove, and the sliding block can play a good role in supporting and limiting.

As a preferred technical scheme of the utility model, the upper end of the fixed shaft is of a circular structure, the lower end of the fixed shaft is of a quadrilateral structure, and the middles of four sides of the lower end of the fixed shaft are respectively provided with a rectangular opening matched with the inner diameter value of the inner side of the extrusion plate, so that the design can better realize the effect of stable sliding of the extrusion plate, and the effect of central limiting of the extrusion plate is realized by maximally utilizing the lifting of the extrusion block.

As a preferred technical scheme, clamping blocks are fixedly mounted on the left side and the right side of the connecting block, clamping grooves matched with the inner diameter of the sliding block are formed in the inner wall of the supporting block, circular holes matched with the inner diameter of the rotating rod are formed in the middle of the expansion plate and the connecting block, threads are carved on the inner walls of the expansion plate and the connecting block, teeth meshed with the gear are fixedly mounted on the inner side of the inserting plate, when the screwing plate is rotated, due to the fact that the clamping blocks on the connecting block and the clamping grooves in the supporting block exist, the connecting block is limited, the connecting block can only slide left and right and cannot rotate, and due to the fact that the rotating rod is in threaded connection with the connecting block and the expansion plate, when the screwing plate drives the rotating rod to rotate, the expansion plate can push the attachment plate to be slowly close to the gear, the teeth on the inserting plate are meshed with the teeth on the gear, and the gear cannot be controlled to rotate.

Compared with the prior art, the utility model has the following beneficial effects:

1. the gear can be sleeved on the fixed shaft, then the screwing block is rotated, the extrusion block slowly moves downwards due to the existence of the threads, the lower end of the extrusion block can abut against the extrusion strips on the four sides, so that the extrusion plates on the four sides are pushed to slide outwards along the rectangular opening at the lower end of the fixed shaft, the spring can be extruded to have elasticity in the process, then the extrusion plates on the four sides can be attached to the inner wall of the gear, the center of the gear is limited, the gears of different specifications can be used according to the principle, the central shaft is prevented from being frequently disassembled and replaced when the machine tool is used for processing the gears of different specifications, and the purpose of being applicable to the gears of various specifications can be achieved.

2. The utility model realizes the purpose of good fixing effect by arranging the rotating rod, the telescopic plate, the inserting plate and the like, when the center of the gear is fixed and limited, the inserting plate can be inserted into the flitch, then the screwing plate is rotated, because the clamping block on the connecting block and the clamping groove on the supporting block exist, the connecting block is limited, so that the connecting block can only slide left and right and can not rotate, and because the rotating rod is in threaded connection with the connecting block and the expansion plate, so when the twisting disc drives the rotating rod to rotate, the expansion plate can push the flitch to slowly approach the gear, so that the teeth on the inserting plate are meshed with the teeth on the gear to control the gear not to rotate, thereby fixing it and cooperating with the extrusion plates supported at the four sides outwards to fix the gear again, and a plurality of inserting plates meshed with the gears can be prepared according to the gears with different specifications, so that the aim of good fixing effect can be fulfilled.

Drawings

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

FIG. 2 is a top plan view of a structural support block according to the present invention;

FIG. 3 is a schematic view of the connection between the structural connecting block and the supporting block of the present invention;

FIG. 4 is a schematic top view of a structural extruded panel of the present invention;

FIG. 5 is a schematic top view of the upper end of the structural shaft of the present invention;

FIG. 6 is a top schematic view of an extrusion block constructed in accordance with the present invention.

In the figure: 1. a work table; 2. a base plate; 3. a fixed shaft; 4. extruding the block; 5. screwing the block; 6. a gear; 7. a support block; 8. screwing the disc; 9. pasting a board; 10. a pressing plate; 11. rotating the rod; 12. a retractable plate; 13. connecting blocks; 14. extruding the strip; 15. inserting plates; 16. a 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.

As shown in fig. 1 to 6, the utility model provides a gear center repeat positioning device for a machine tool, which comprises a workbench 1, wherein a base plate 2 is fixedly arranged in the middle of the top of the workbench 1, a fixed shaft 3 is fixedly arranged in the middle of the top of the base plate 2, an extrusion block 4 is movably connected to the upper end inside the fixed shaft 3, a screwing block 5 is fixedly arranged in the middle of the top of the extrusion block 4, four extrusion plates 10 are movably connected to the lower end of the fixed shaft 3 along an annular equal-moment manner, an extrusion strip 14 is fixedly connected to the inner side of each extrusion plate 10, and a spring 16 is fixedly connected to the outer side of each extrusion strip 14.

Wherein, the equal fixed mounting in both ends has supporting shoe 7 about 1 top of workstation, the inside swing joint of supporting shoe 7 has dwang 11, the disk 8 is twisted to the left side fixedly connected with of dwang 11, the right-hand member threaded connection of dwang 11 has expansion plate 12, the left side fixed mounting of expansion plate 12 has connecting block 13, the right side fixed mounting of expansion plate 12 has flitch 9, the inside middle part swing joint of flitch 9 has picture peg 15, gear 6 has been placed at the top of backing plate 2.

Wherein, the outside of extrusion piece 4 upper end and the inner wall of fixed axle 3 upper end are all carved with the screw thread, and the lower extreme of extrusion piece 4 adopts conical structure, and the inboard of extrusion strip 14 is equipped with the bevel connection, and when rotating and twisting block 5, extrusion piece 4 can slowly move down, and the lower extreme of extrusion piece 4 can support the extrusion strip 14 of four sides to the stripper plate 10 that pushes away the four sides slides to the outside along the rectangle mouth of fixed axle 3 lower extreme.

Wherein, the circular mouth has been seted up at the middle part of workstation 1 and backing plate 2, and the spout that is located the circular mouth outside is seted up at the middle part at backing plate 2 top, and the middle part fixed mounting of stripper plate 10 bottom has the slider, and when stripper plate 10 was being pushed away along the rectangle mouthful outside slip to extrusion strip 14, the slider also can slide along the spout outside, and the slider can play fine support and limiting displacement.

Wherein, the upper end of fixed axle 3 adopts circular structure lower extreme to be quadrilateral structure, and the rectangle mouth with the inboard internal diameter value adaptation of stripper plate 10 is all seted up at the middle part of 3 lower extreme four sides of fixed axle, and the gliding effect is stabilized to realization stripper plate 10 that design can be better like this, and the maximize utilizes the lift of extrusion piece 4 to realize that stripper plate 10 plays central spacing effect.

Wherein, the equal fixed mounting in the left and right sides of connecting block 13 has the fixture block, set up the draw-in groove with slider internal diameter value adaptation on the inner wall of supporting shoe 7, all be carved with the screw thread on the circular port and the inner wall with dwang 11 internal diameter value adaptation is seted up at the middle part of expansion plate 12 and connecting block 13, the inboard fixed mounting of picture peg 15 has the tooth with 6 meshes of gear, when screwing up driving disk 8 when rotating, because fixture block on the connecting block 13 and the draw-in groove on the supporting shoe 7 exist, stop connecting block 13, make connecting block 13 can only the horizontal slip, can not rotate, again because dwang 11 and connecting block 13 and expansion plate 12 threaded connection, so when screwing up driving disk 8 and driving dwang 11 and rotating, expansion plate 12 can be pushing away flitch 9 and slowly be close to gear 6, make tooth on the picture peg 15 mesh with the tooth on the gear 6, control gear 6 must not rotate.

The working principle and the using process of the utility model are as follows:

firstly, a gear 6 to be processed is sleeved on a fixed shaft 3, then a screwing block 5 is rotated, due to the existence of threads, an extrusion block 4 slowly moves downwards, the lower end of the extrusion block 4 can abut against extrusion strips 14 on four sides, so that extrusion plates 10 on four sides are pushed to slide outwards along a rectangular opening at the lower end of the fixed shaft 3, a spring 16 is extruded to have elasticity in the process, then the extrusion plates 10 on four sides can abut against the inner wall of the gear 6, and the center of the gear 6 is limited;

then the inserting plate 15 can be inserted into the sticking plate 9, then the screwing plate 8 is rotated, because the clamping block on the connecting block 13 and the clamping groove on the supporting block 7 exist, the connecting block 13 is limited, so that the connecting block 13 can only slide left and right and can not rotate, and because the rotating rod 11 is in threaded connection with the connecting block 13 and the telescopic plate 12, when the screwing plate 8 drives the rotating rod 11 to rotate, the telescopic plate 12 can push the sticking plate 9 to slowly approach the gear 6, so that the teeth on the inserting plate 15 are meshed with the teeth on the gear 6, the gear 6 is controlled not to rotate, so that the inserting plate is fixed, and is matched with the extrusion plates 10 with four sides supported outwards to fix the gear 6 again; then, the machining operation can be carried out;

after the processing, the accessible is twisted and is twisted 8 reversals to drive picture peg 15 not to contact with gear 6 with flitch 9, then the block 5 is twisted in the antiport, and extrusion block 4 just can slowly rise, then the lower extreme of extrusion block 4 is not contacted with the extrusion strip 14 of four sides, so four sides have elastic spring 16 just can push extrusion plate 10 and move to the inboard, thereby do not can take off processed gear 6 with the inner wall contact of gear 6.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A gear center repeated positioning device for a machine tool comprises a workbench (1), and is characterized in that: the middle part fixed mounting at workstation (1) top has backing plate (2), the middle part fixed mounting at backing plate (2) top has fixed axle (3), the inside upper end swing joint of fixed axle (3) has extrusion piece (4), the middle part fixed mounting at extrusion piece (4) top has wrong movable block (5), the lower extreme of fixed axle (3) has four stripper plates (10) along annular equal-moment swing joint, the inboard fixedly connected with extrusion strip (14) of stripper plate (10), the outside fixedly connected with spring (16) of extrusion strip (14).

2. A gear center repositioning device for a machine tool according to claim 1, wherein: the utility model discloses a gear, including workstation (1), workstation (11), dwang (8), the right-hand member threaded connection of dwang (11), the inside swing joint of both ends has dwang (7) about workstation (1) top, the inside swing joint of bracing piece (7) has dwang (11), driving disk (8) is twisted to the left side fixedly connected with of dwang (11), the right-hand member threaded connection of dwang (11) has expansion plate (12), the left side fixed mounting of expansion plate (12) has connecting block (13), the right side fixed mounting of expansion plate (12) has flitch (9), the inside middle part swing joint of flitch (9) has picture peg (15), gear (6) have been placed at the top of backing plate (2).

3. A gear center repositioning device for a machine tool according to claim 1, wherein: the outer portion of the upper end of the extrusion block (4) and the inner wall of the upper end of the fixed shaft (3) are both provided with threads, the lower end of the extrusion block (4) is of a conical structure, and the inner side of the extrusion strip (14) is provided with an inclined opening.

4. A gear center repositioning device for a machine tool according to claim 1, wherein: circular mouths are formed in the middle of the workbench (1) and the backing plate (2), sliding grooves located on the outer sides of the circular mouths are formed in the middle of the top of the backing plate (2), and sliding blocks are fixedly mounted in the middle of the bottom of the extrusion plate (10).

5. A gear center repositioning device for a machine tool according to claim 1, wherein: the upper end of the fixed shaft (3) is of a circular structure, the lower end of the fixed shaft is of a quadrilateral structure, and rectangular openings matched with the inner diameter of the inner side of the extrusion plate (10) are formed in the middles of four sides of the lower end of the fixed shaft (3).

6. A gear center repositioning device for a machine tool according to claim 2, wherein: the equal fixed mounting in the left and right sides of connecting block (13) has the fixture block, set up the draw-in groove with slider internal diameter value adaptation on the inner wall of supporting shoe (7), all be carved with the screw thread on circular port and the inner wall of dwang (11) internal diameter value adaptation is seted up at the middle part of expansion plate (12) and connecting block (13), the inboard fixed mounting of picture peg (15) has the tooth with gear (6) engaged with.