CN110977058B

CN110977058B - Clamping device for milling spline

Info

Publication number: CN110977058B
Application number: CN202010015418.5A
Authority: CN
Inventors: 不公告发明人
Original assignee: Xuzhou Yiteng Electromechanical Technology Co ltd
Current assignee: Xuzhou Yiteng Electromechanical Technology Co ltd
Priority date: 2020-01-07
Filing date: 2020-01-07
Publication date: 2021-04-16
Anticipated expiration: 2040-01-07
Also published as: CN110977058A

Abstract

The invention discloses a spline milling and clamping device; this device includes the fixed station, be equipped with the ascending sleeve chamber of opening in the fixed station, sleeve chamber downside is equipped with the belt pulley chamber, normal running fit is connected with down to on the sleeve chamber lower extreme wall the integral key shaft of belt pulley intracavity, belt pulley chamber left side is equipped with transmission switching mechanism, makes the device can switch in intermittent type nature motion and continuous motion two kinds of states, the sleeve intracavity be equipped with the sleeve that integral key shaft screw-thread fit connects, sleeve up end fixedly connected with elevating platform accomplishes the lift of elevating platform through the sleeve, sleeve chamber right side is equipped with lift stop gear, and the elevating platform can switch in going up and down and following the integral key shaft rotation two kinds of states, be equipped with fixture in the elevating platform, the lift that can follow the elevating platform presss from both sides tightly or relaxs and treats the cutting integral key shaft.

Description

Clamping device for milling spline

Technical Field

The invention relates to the technical field of milling, in particular to a spline milling clamping device.

Background

The spline is used as a common part, the structure and the precision of the spline can directly influence the machine, the common spline machining at present has modes of milling, slotting and the like, wherein the milling machining has low working efficiency due to the fact that the position of a workbench needs to be adjusted for many times, and meanwhile, the possibility of errors is large.

On the other hand, the clamping during the processing of the spline shaft at present usually uses a dividing head or a pressing plate, the assembly and the disassembly are complicated, the manual clamping is needed, the hidden danger of accidents caused by the infirm clamping is caused, meanwhile, the milling cutter needs to be lifted first when the spline shaft to be processed is replaced, and the milling cutter is lowered after the clamping is completed, so that the efficiency is low.

Disclosure of Invention

Aiming at the technical defects, the invention provides a spline milling clamping device which can overcome the defects.

The invention relates to a spline milling clamping device, which comprises a fixed table, wherein the lower end surface of the fixed table is fixedly connected with a milling workbench, a sleeve cavity with an upward opening is arranged in the fixed table, a belt wheel cavity is arranged at the lower side of the sleeve cavity, a spline shaft extending to the upper side and the lower side is connected on the lower end wall of the sleeve cavity in a rotating fit manner, the spline shaft extends downwards into the belt wheel cavity, a first belt wheel fixedly connected with the spline shaft is arranged in the belt wheel cavity, a second belt wheel fixedly connected with the tail end of the lower side of the spline shaft is arranged at the lower side of the first belt wheel, a transmission switching mechanism is arranged at the left side of the belt wheel cavity, a grooved wheel cavity is arranged at the left side of the transmission switching mechanism, a motor positioned at the upper side of the grooved wheel cavity is fixedly connected in the fixed table, a lifting limiting mechanism is, the utility model discloses a spline shaft, including sleeve up end fixedly connected with elevating platform, be equipped with the carousel chamber in the elevating platform, carousel chamber downside intercommunication is equipped with downwardly extending to the integral key shaft of sleeve up end leads to the chamber, the integral key shaft leads to the chamber outside ring and is equipped with the decurrent spacing groove of a plurality of openings, be equipped with the ascending spline chamber of opening in the integral key shaft, spline intracavity spline fit is connected with first driven shaft, first driven shaft upwards extends and runs through the integral key shaft leads to the chamber extremely the carousel intracavity, first driven shaft upside is equipped with fixture.

Preferably, the sheave cavity comprises a driving shaft which is connected with the upper end wall of the sheave cavity in a rotating fit manner and extends downwards into the sheave cavity, the upper end surface of the driving shaft is fixedly connected with the lower end surface of the motor, a third belt wheel fixedly connected with the driving shaft is arranged in the grooved pulley cavity, a driving grooved pulley fixedly connected with the tail end of the lower side of the driving shaft is arranged on the lower side of the third belt pulley, a second driven shaft in rotating fit connection with the upper end wall of the grooved pulley cavity is arranged in the grooved pulley cavity, a fourth belt pulley is fixedly connected on the second driven shaft, a driven sheave fixedly connected with the tail end of the lower side of the second driven shaft is arranged on the lower side of the fourth belt pulley, and a first transmission belt is connected between the third belt wheel and the first belt wheel in a power fit manner, and a second transmission belt is connected between the fourth belt wheel and the second belt wheel in a power fit manner.

Preferably, transmission switching mechanism is including tightening the piece chamber, it is located to tighten the piece chamber the sheave chamber with between the band pulley chamber and by first drive belt with the second drive belt runs through, it is equipped with the magnetic slide board chamber that extends right to tighten piece chamber downside intercommunication, it is connected with the piece of tightening to tighten piece intracavity sliding fit, the piece of tightening is terminal surface fixedly connected with under the piece triggers a piece magnet, magnetic slide board intracavity sliding fit is connected with the magnetic slide board, the magnetic slide board have magnetism and magnetism with trigger a piece magnet and repel each other, the magnetic slide board with repulsion between the trigger piece magnet is greater than tighten the gravity of piece, magnetic slide board right-hand member face with first compression spring of fixedly connected with between the magnetic slide board chamber right-hand member wall.

Preferably, the lifting limiting mechanism comprises a limiting rod cavity, the limiting rod cavity is positioned on the right side of the sleeve cavity, the opening of the limiting rod cavity faces upwards, the limiting rod cavity corresponds to the limiting groove, a button cavity with an outward opening is communicated and arranged on the lower side of the limiting rod cavity, a sliding block cavity is communicated and arranged on the left side of the limiting rod cavity, a sliding block extending rightwards into the limiting rod cavity is connected in the sliding block cavity in a sliding fit manner, a limiting rod positioned in the limiting rod cavity is fixedly connected to the right end face of the sliding block, a limiting rod magnet is fixedly connected to the lower end face of the limiting rod, a button is connected in the button cavity in a sliding fit manner, a trigger magnet is fixedly connected in the upper end face of the button, the magnetism of the trigger magnet is repelled by the limiting rod magnet, the repulsion force of the trigger magnet is larger than the elasticity of the first extension spring, the elasticity of the second compression spring is larger than that of the first compression spring, the left end face of the button is fixedly connected with a pull rope, and the other end of the pull rope is fixedly connected with the right end face of the magnetic sliding plate.

Preferably, fixture includes the carousel, the carousel is located carousel intracavity and lower terminal surface with first driven shaft up end fixed connection, carousel chamber upside intercommunication ring is equipped with the spacing chamber of a plurality of grip blocks, the spacing intracavity side intercommunication of grip block is equipped with the process chamber, the process chamber make progress the opening and downwards with carousel chamber intercommunication, the spacing intracavity sliding fit of grip block is connected with the grip block, terminal surface fixedly connected with rack under the grip block, fixedly connected with screw type flank of tooth in the carousel chamber up end, the rack with screw type flank of tooth meshing.

In conclusion, the device enables the milling cutter to be processed only by vertically reciprocating milling in a mode that the clamping mechanism drives the spline shaft to be processed to intermittently rotate, the position of the workbench does not need to be frequently adjusted, the efficiency is reduced, errors are generated, meanwhile, the clamping block is loosened when the lifting platform descends after the spline shaft to be processed is processed, the clamping block is clamped when the lifting platform ascends after the spline shaft to be processed is replaced, the position of the milling cutter is always kept on the working face, the working efficiency is increased by automatic clamping, and potential safety hazards are reduced.

Drawings

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

FIG. 1 is a schematic structural view of a spline milling clamping device according to the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

FIG. 3 is a schematic sectional view taken along line B-B in FIG. 1;

fig. 4 is a schematic sectional view of the structure in the direction of C-C in fig. 1.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

The invention will now be described in detail with reference to fig. 1-4, for convenience of description, the following orientations will now be defined: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

As shown in fig. 1-4, the spline milling clamping device of the present invention includes a fixed table 35, a lower end surface of the fixed table 35 is fixedly connected to a milling worktable, a sleeve cavity 18 with an upward opening is provided in the fixed table 35, a pulley cavity 33 is provided at a lower side of the sleeve cavity 18, a spline shaft 32 extending to upper and lower sides is rotatably connected to a lower end wall of the sleeve cavity 18, the spline shaft 32 extends downward into the pulley cavity 33, a first pulley 34 fixedly connected to the spline shaft 32 is provided in the pulley cavity 33, a second pulley 31 fixedly connected to a lower end of the spline shaft 32 is provided at a lower side of the first pulley 34, a transmission switching mechanism is provided at a left side of the pulley cavity 33, a pulley cavity 25 is provided at a left side of the transmission switching mechanism, a motor 22 located at an upper side of the pulley cavity 25 is fixedly connected to the fixed table 35, 18 right sides in sleeve chamber are equipped with lift stop gear, be equipped with in sleeve chamber 18 with the sleeve 17 that integral key shaft 32 screw-thread fit is connected, sleeve 17 up end fixedly connected with elevating platform 10, be equipped with carousel chamber 21 in the

elevating platform

10, 21 downside intercommunications in carousel chamber are equipped with downwardly extending to the integral key shaft of sleeve 17 up end leads to the chamber 16, the integral key shaft leads to 16 outside rings in chamber and is equipped with the decurrent spacing groove 54 of a plurality of openings, be equipped with the ascending spline chamber 14 of opening in the integral key shaft 32, the spline fit is connected with first driven shaft 15 in the spline chamber 14, first driven shaft 15 upwards extends and runs through the integral key shaft leads to the chamber 16 extremely in the carousel chamber 21, the 15 upsides of first driven shaft are equipped with fixture.

Advantageously, the sheave cavity 25 comprises a driving shaft 23, the driving shaft 23 is connected with the upper end wall of the sheave cavity 25 in a rotating fit manner and extends downwards into the sheave cavity 25, the upper end surface of the driving shaft 23 is fixedly connected with the lower end surface of the motor 22, a third belt wheel 24 fixedly connected with the driving shaft 23 is arranged in the sheave cavity 25, a driving grooved wheel 47 fixedly connected with the lower end of the driving shaft 23 is arranged at the lower side of the third belt wheel 24, a second driven shaft 27 which is connected with the upper end wall of the sheave cavity 25 in a rotating matching way is arranged in the sheave cavity 25, a fourth pulley 26 is fixedly connected to the second driven shaft 27, a driven sheave 48 fixedly connected with the lower end of the second driven shaft 27 is arranged at the lower side of the fourth pulley 26, a first transmission belt 49 is connected between the third belt wheel 24 and the first belt wheel 34 in a power fit manner, a second transmission belt 52 is connected between the fourth pulley 26 and the second pulley 31 in a power fit manner.

Beneficially, the transmission switching mechanism includes a tightening block cavity 50, the tightening block cavity 50 is located between the sheave cavity 25 and the sheave cavity 33 and is penetrated by the first transmission belt 49 and the second transmission belt 52, a magnetic sliding plate cavity 28 extending rightward is communicated with the lower side of the tightening block cavity 50, a tightening block 51 is connected in the tightening block cavity 50 in a sliding fit manner, a trigger block magnet 53 is fixedly connected to the lower end face of the tightening block 51, a magnetic sliding plate 29 is connected in the magnetic sliding plate cavity 28 in a sliding fit manner, the magnetic sliding plate 29 has magnetism and repels the trigger block magnet 53, repulsion force between the magnetic sliding plate 29 and the trigger block magnet 53 is greater than gravity of the tightening block 51, and a first compression spring 30 is fixedly connected between the right end face of the magnetic sliding plate 29 and the right end wall of the magnetic sliding plate cavity 28.

Beneficially, the lifting limiting mechanism comprises a limiting rod cavity 40, the limiting rod cavity 40 is located on the right side of the sleeve cavity 18 and has an upward opening, the limiting rod cavity 40 corresponds to the limiting groove 54, a button cavity 45 with an outward opening is communicated with the lower side of the limiting rod cavity 40, a sliding block cavity 38 is communicated with the left side of the limiting rod cavity 40, a sliding block 37 extending rightwards into the limiting rod cavity 40 is connected in the sliding block cavity 38 in a sliding fit manner, a limiting rod 39 located in the limiting rod cavity 40 is fixedly connected to the right end face of the sliding block 37, a limiting rod magnet 41 is fixedly connected to the lower end face of the limiting rod 39, a button 43 is connected in the button cavity 45 in a sliding fit manner, a trigger magnet 42 is fixedly connected in the upper end face of the button 43, the trigger magnet 42 magnetically repels the limiting rod magnet 41 and the repulsion force is greater than the elastic force of the first extension spring 36, a second compression spring 44 is fixedly connected between the left end face of the button 43 and the left end wall of the button cavity 45, the elasticity of the second compression spring 44 is greater than that of the first compression spring 30, a pull rope 46 is also fixedly connected to the left end face of the button 43, and the other end of the pull rope 46 is fixedly connected to the right end face of the magnetic sliding plate 29.

Beneficially, fixture includes carousel 55, carousel 55 be located carousel chamber 21 and terminal surface and first driven shaft 15 up end fixed connection down, carousel chamber 21 upside intercommunication ring is equipped with the spacing chamber 20 of a plurality of grip blocks, the spacing chamber 20 inboard intercommunication of grip block is equipped with process chamber 19, process chamber 19 upwards opening and downwards with carousel chamber 21 intercommunication, the spacing chamber 20 of grip block sliding fit is connected with grip block 12, terminal surface fixedly connected with rack 11 under the grip block 12, fixedly connected with spiral flank of tooth 13 in carousel chamber 21 up end, rack 11 with spiral flank of tooth 13 meshes.

The applicant will now specifically describe a splined milling fixture of the present application with reference to figures 1-4 and the above description:

in an initial state, the second compression spring 44 is in a relaxed state, the first compression spring 30 is in a compressed state, the pull rope 46 is in a tightened state, the button 43 is partially positioned outside, the trigger magnet 42 is positioned on the right side of the limiting rod magnet 41, the first extension spring 36 is in a relaxed state, the limiting rod 39 is completely positioned in the limiting rod cavity 40, the magnetic sliding plate 29 is positioned on the right side of the trigger block magnet 53, the lower end face of the trigger block magnet 53 is in contact with the lower end wall of the tightening block cavity 50, the tightening block 51 is positioned between the second transmission belts 52, the second transmission belts 52 are in a tightened transmission state, the first transmission belts 49 are in a loosened idle state, the lower end face of the sleeve 17 is in contact with the lower end wall of the sleeve cavity 18, the lower end face of the first driven shaft 15 is in contact with the lower end wall of the spline cavity 14, and the outer;

when the milling machine starts to work, a spline shaft to be milled is placed in the processing cavity 19, the button 43 is pressed, under the action of thrust, the button 43 overcomes the elastic force of the second compression spring 44 and moves leftwards to be completely positioned in the button cavity 45, the limiting rod 39 overcomes the tensile force of the first extension spring 36 and moves upwards to the upper end face to be contacted with the upper end wall of the limiting groove 54 under the action of the repulsive force between the limiting rod magnet 41 and the trigger magnet 42, the magnetic sliding plate 29 moves leftwards to the lower side of the trigger block magnet 53 under the action of the elastic force of the first compression spring 30, the tightening block 51 moves upwards to a position between the first transmission belt 49 under the action of the repulsive force between the trigger block magnet 53 and the magnetic sliding plate 29, the first transmission belt 49 is in a tightening transmission state, the second transmission belt 52 is in a loosening idle state, the motor 22 is started, the motor 22 drives the driving shaft 23 to rotate, so as to, the driving sheave 47 rotates to drive the driven sheave 48 to intermittently rotate, so as to drive the second driven shaft 27, the fourth pulley 26 intermittently rotates, the second transmission belt 52 is in a loose idle state, the second pulley 31 idles, the third pulley 24 rotates to drive the first pulley 34 to rotate through the first transmission belt 49, so as to drive the spline shaft 32 to rotate, so as to drive the lifting platform 10 to ascend through the sleeve 17, drive the turntable 55 through the thrust of the lower end wall of the turntable cavity 21 on the lower end surface of the turntable 55, the first driven shaft 15 moves upwards, simultaneously the spline shaft 32 rotates to drive the first driven shaft 15 to rotate, so as to drive the turntable 55 to rotate, at the moment, the lifting platform 10 is limited by the limiting rod 39 to be in a non-rotating state, so as to enable the clamping block 12 to be limited by the clamping block limiting cavity 20 to be non-rotating, the clamping block 12 moves inwards, and after the clamping block 12, the button 43 returns to the initial position under the action of the thrust of the second compression spring 44, the limit rod 39 returns to the limit rod cavity 40, the lifting platform 10 does not limit rotation any more, the magnetic sliding plate 29 returns to the initial position to the right against the thrust of the first compression spring 30 under the action of the tension of the pull rope 46, the tightening block 51 loses the repulsive force between the trigger block magnet 53 and the magnetic sliding plate 29 and then moves to the initial position under the action of self gravity, at this time, the second transmission belt 52 is in a tightening transmission state, the first transmission belt 49 is in a loosening idle state, the first belt pulley 34 idles, the fourth belt pulley 26 rotates to drive the second belt pulley 31 and the second belt pulley 32 to intermittently rotate through the second transmission belt 52, so that the first driven shaft 15 and the sleeve 17 respectively drive the rotating disc 55 and the lifting platform 10 to intermittently rotate to start the milling machine, the milling machine intermittently reciprocates up and down, the movement interval is opposite to that the device is in a static, when the milling cutter is static, the device rotates to the position of the next groove to be milled, and therefore milling of the spline is completed.

After milling is completed, the button 43 is pressed, the motor 22 is reversed, the lifting platform 10 descends to the initial position, meanwhile, the clamping block 12 returns to the initial position, the motor 22 is turned off, the button 43 is released, the spline shaft is taken down, then the next spline shaft to be milled is placed in the machining cavity 19, and the process is repeated.

The above description is only an embodiment of the invention, but the scope of the invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the invention. Therefore, the protection scope of the invention should be subject to the protection scope defined by the claims.

Claims

1. The utility model provides a clamping device is milled to colored keyway, includes the fixed station, its characterized in that: the lower end face of the fixed table is fixedly connected with the milling workbench, a sleeve cavity with an upward opening is arranged in the fixed table, a belt wheel cavity is arranged at the lower side of the sleeve cavity, a spline shaft extending to the upper side and the lower side is connected to the lower end wall of the sleeve cavity in a rotating fit manner, the spline shaft extends downwards into the belt wheel cavity, a first belt wheel fixedly connected with the spline shaft is arranged in the belt wheel cavity, a second belt wheel fixedly connected with the tail end of the lower side of the spline shaft is arranged at the lower side of the first belt wheel, a transmission switching mechanism is arranged at the left side of the belt wheel cavity, a groove wheel cavity is arranged at the left side of the transmission switching mechanism, a motor positioned at the upper side of the groove wheel cavity is fixedly connected in the fixed table, a lifting limiting mechanism is arranged at the right side of the sleeve cavity, a sleeve in, be equipped with the carousel chamber in the elevating platform, carousel chamber downside intercommunication is equipped with downwardly extending to the integral key shaft of sleeve up end leads to the chamber, the integral key shaft leads to the chamber outside and encircles and is equipped with the decurrent spacing groove of a plurality of openings, be equipped with the ascending spline chamber of opening in the integral key shaft, spline intracavity spline fit is connected with first driven shaft, first driven shaft upwards extends and runs through the integral key shaft leads to the chamber extremely the carousel intracavity, first driven shaft upside is equipped with fixture.

2. A splined milling clamping device according to claim 1, wherein: the pulley cavity comprises a driving shaft, the driving shaft is connected with the upper end wall of the pulley cavity in a rotating fit mode and extends downwards into the pulley cavity, the upper end face of the driving shaft is fixedly connected with the lower end face of the motor, a third pulley fixedly connected with the driving shaft is arranged in the pulley cavity, a driving pulley fixedly connected with the tail end of the lower side of the driving shaft is arranged on the lower side of the third pulley, a second driven shaft connected with the upper end wall of the pulley cavity in a rotating fit mode is arranged in the pulley cavity, a fourth pulley is fixedly connected onto the second driven shaft, a driven pulley fixedly connected with the tail end of the lower side of the second driven shaft is arranged on the lower side of the fourth pulley, a first driving belt is connected between the third pulley and the first pulley in a power fit mode, and a second driving belt is connected between the fourth pulley and the second pulley in a power.

3. A splined milling clamping device according to claim 2, wherein: the transmission switching mechanism comprises a tightening block cavity, the tightening block cavity is located between the sheave cavity and the belt wheel cavity and is connected with the tightening block through sliding fit, a magnet is fixedly connected with a triggering block on the lower end face of the tightening block, a magnetic sliding plate is connected with the magnetic sliding plate through sliding fit in the magnetic sliding plate cavity, and a first compression spring is fixedly connected between the right end wall of the magnetic sliding plate cavity.

4. A splined milling clamping device according to claim 3, wherein: the lifting limiting mechanism comprises a limiting rod cavity, the limiting rod cavity is positioned at the right side of the sleeve cavity and has an upward opening, the limiting rod cavity corresponds to the limiting groove, a button cavity with an outward opening is communicated with the lower side of the limiting rod cavity, the left side of the limiting rod cavity is communicated with a sliding block cavity, the sliding block cavity is connected with a sliding block which extends rightwards into the limiting rod cavity in a sliding fit manner, the right end face of the sliding block is fixedly connected with a limiting rod positioned in the limiting rod cavity, the lower end face of the limiting rod is fixedly connected with a limiting rod magnet, a button is connected in the button cavity in a sliding fit manner, a trigger magnet is fixedly connected in the upper end surface of the button, the magnetic sliding plate is characterized in that a second compression spring is fixedly connected between the left end face of the button and the left end wall of the button cavity, a pull rope is fixedly connected to the left end face of the button, and the other end of the pull rope is fixedly connected with the right end face of the magnetic sliding plate.

5. A splined milling clamping device according to claim 1, wherein: fixture includes the carousel, the carousel is located under and the terminal surface of carousel intracavity and first driven shaft up end fixed connection, carousel chamber upside intercommunication ring is equipped with the spacing chamber of a plurality of grip blocks, the spacing intracavity side intercommunication of grip block is equipped with the process chamber, the process chamber upwards open-ended and downwards with carousel chamber intercommunication, the spacing intracavity sliding fit of grip block is connected with the grip block, terminal surface fixedly connected with rack under the grip block, fixedly connected with screw type flank of tooth in the carousel chamber up end, the rack with screw type flank of tooth meshing.