CN208117270U - A kind of shaft key groove fixture for processing - Google Patents

Abstract

The utility model discloses a kind of shaft key groove fixture for processing, including adjustable V-arrangement positioning component on bottom plate of bottom plate, the fixation V-arrangement locating piece being fixedly connected on bottom plate, slidable connection, two hold-down mechanisms being arranged on the fixed V-arrangement locating piece and adjustable V-arrangement locating piece, the limit plate of side on bottom plate is set and the ejector pin component on bottom plate relative to the limit plate other side is set；The limit plate is fixedly connected on the bottom plate by screw；The ejector pin component includes support base, thimble bracket, thimble and turn-screw, and adjustable thimble is moved axially and can be moved up and down.This fixture clamping stability is high, positioning accuracy is high, can be adapted to the step-like shaft of sizes by adjusting the position of adjustable V-arrangement positioning component, can reliably guarantee the accurate positionin of axis, and ensure the processing symmetry of shaft key groove.

Description

A kind of shaft key groove fixture for processing

Technical field

The utility model relates to a kind of fixtures, refer in particular to a kind of shaft key groove fixture for processing, belong to clamp art.

Background technique

Axial workpiece is one of most basic, most important component part in machine, and major function is transmitting movement and turns Square and bearing and turning part.And be keyed because its structure is simple, reliable operation, convenient for disassembly and assembly, axial workpiece fixation and Transmitting aspect application is very extensive.Keyseat is a process for milling out keyway in workpiece surface with milling cutter, is needed workpiece clamp Tightly and with milling cutter milling process, it is in process, higher to the required precision of keyway.Fixture is mainly to clamping workpiece Device is used to fix processing object, is allowed to occupy correct position, to receive the dress of construction or testing during machine-building It sets, in the workpiece keyway for clamping different-diameter, such as uses common flat-nose pliers, need to readjust keyway and diameter of work Symmetry, and since axial workpiece is the cylindric multi-stage stairs shape axis body formed generally different by multistage diameter, for dress The different end of diameter is pressed from both sides, fixture size must specially be designed according to workpiece size, therefore time-consuming and laborious inconvenient for operation, drop Low working efficiency, therefore it is necessary specially to design the dedicated keyseat clamp of a axial workpiece.

Utility model content

For the above technical problems, the purpose of this utility model is：Propose a kind of easy to operate, machining accuracy High shaft key groove fixture for processing.

What the technical solution of the utility model was realized in：A kind of shaft key groove fixture for processing, including it is bottom plate, solid Surely it is connected to adjustable V-arrangement positioning component of the fixation V-arrangement locating piece, slidable connection on bottom plate on bottom plate, is arranged described The limit plate of side and setting on bottom plate is arranged in fixed V-arrangement locating piece and two hold-down mechanisms on adjustable V-arrangement locating piece Ejector pin component on bottom plate relative to the limit plate other side；The adjustable V-arrangement positioning component includes traversing bracket, adjustable V-arrangement Block and fine tuning lead screw；The bottom plate is equipped with linear guide, and the lower end of the traversing bracket is equipped with bayonet and can sting with linear guide It closes, forms being slidably matched for small friction；The vertical mid of the adjustable vee-block offers threaded hole and matches with fine tuning threads of lead screw It closes；The side of the adjustable vee-block of traversing cradle fits offers upright guide rail, and the side of the adjustable vee-block is equipped with sliding slot It can be engaged with upright guide rail；The lower end of the fine tuning lead screw is connected with first motor, and the first motor is fixedly connected on traversing On bracket；The motor driven fine tuning lead screw, which rotates and then controls adjustable vee-block, to be moved up and down；The hold-down mechanism includes screw thread Column, the spring being set in outside threaded post, the pressure plate being threaded through in threaded post and the clamp nut for compressing pressure plate；Institute Limit plate is stated to be fixedly connected on the bottom plate by screw；The ejector pin component includes support base, thimble bracket, thimble and biography Dynamic lead screw；The support base is slidably connected at connecting bottom board；The thimble is fixedly connected on the front side of thimble bracket；The thimble The rear side of bracket is in vertical direction slidable connection on support base；The vertical mid of the thimble bracket offer threaded hole with Turn-screw is threadedly engaged；The lower end of the turn-screw is connected with the second motor, and second motor is fixedly connected on thimble The lower end side of bracket；The second motor driven turn-screw rotates and then controls thimble and moves up and down.

Preferably, in the hold-down mechanism positioned on adjustable V-arrangement locating piece, the threaded post is fixedly connected on traversing branch On frame.

Preferably, the pressure plate is in rectangular flat plate, can be rotated in the horizontal plane by axis of threaded post.

Preferably, the front end of the thimble is in coniform.

Preferably, the v-shaped opening size of the fixed V-arrangement locating piece is greater than the v-shaped opening size of adjustable vee-block.

Preferably, the upper end of the thimble bracket is equipped with feeler block.

Preferably, mounting groove is respectively arranged on four angles of the bottom plate.

Due to the application of the above technical scheme, the utility model has following advantages compared with prior art：

The rotation axis fixture for machining key slot of the utility model, clamping stability is high, positioning accuracy is high, can be adjustable by adjusting The position of V-arrangement positioning component is adapted to the step-like shafts of sizes, can reliably guarantee the accurate positionin of axis, and really Protect the processing symmetry of shaft key groove.

Detailed description of the invention

Technical solutions of the utility model are described further with reference to the accompanying drawing：

Attached drawing 1 is the structural schematic diagram of the utility model；

Attached drawing 2 is the structural schematic diagram of another angle of the utility model.

Specific embodiment

Illustrate the utility model with reference to the accompanying drawing.

A kind of rotation axis fixture for machining key slot of the utility model as shown in attached drawing 1-2, including bottom plate 1, is fixedly connected on Adjustable V-arrangement positioning component 3 on bottom plate 1 of fixation V-arrangement locating piece 2, slidable connection on bottom plate 1 is arranged in the fixed V Two hold-down mechanisms 4 on shape locating piece 2 and adjustable V-arrangement locating piece 3, the limit plate 5 that side on bottom plate 1 is set and setting Ejector pin component 6 on bottom plate 1 relative to 5 other side of limit plate；Mounting groove is respectively arranged on four angles of the bottom plate 1 12；The adjustable V-arrangement positioning component 3 includes traversing bracket 31, adjustable vee-block 32 and fine tuning lead screw 33；The bottom plate 1 is equipped with Linear guide 11, the lower end of the traversing bracket 31 are equipped with bayonet and can be engaged with linear guide 11, and the sliding for forming small friction is matched It closes；The vertical mid of the adjustable vee-block 32 offers threaded hole and is threadedly engaged with fine tuning lead screw 33；The traversing bracket 31 pastes The side for closing adjustable vee-block 32 offers upright guide rail 34, the side of the adjustable vee-block 32 be equipped with sliding slot 35 can with lead vertically Rail 34 is engaged；The lower end of the fine tuning lead screw 33 is connected with first motor 36, and the first motor 36 is fixedly connected on traversing branch On frame 31；The driving of the motor 36 fine tuning lead screw 33, which rotates and then controls adjustable vee-block 32, to be moved up and down；The hold-down mechanism 4 Including threaded post 41, the spring being set in outside threaded post 41 42, the pressure plate 43 being threaded through in threaded post 41 and for compressing The clamp nut 44 of pressure plate 43；The pressure plate 43 is in rectangular flat plate, can be in the horizontal plane axis progress with threaded post 41 Rotation；The limit plate 5 is fixedly connected on the bottom plate 1 by screw；The ejector pin component 6 includes support base 61, thimble Bracket 62, thimble 63 and turn-screw 64；The support base 61 is slidably connected at connecting bottom board 1；The front end of the thimble 63 is in It is coniform, it is fixedly connected on the front side of thimble bracket 62；The rear side of the thimble bracket 62 exists in vertical direction slidable connection On support base 61；The vertical mid of the thimble bracket 62 offers threaded hole and is threadedly engaged with turn-screw 64；The transmission The lower end of lead screw 64 is connected with the second motor 65, and second motor 65 is fixedly connected on the lower end side of thimble bracket 62；Institute It states driving turn-screw 64 rotation of the second motor 65 and then controls thimble 63 and move up and down.

The upper end of further instruction, the thimble bracket 62 is equipped with feeler block 66, so that feeler block and axle center spacing It is constant, it is convenient to knife.

Further instruction, the v-shaped opening size of the fixed V-arrangement locating piece 2 are greater than the v-shaped opening of adjustable vee-block 32 Size, in order to be more suitable multistage multi-diameter shaft.

When the fixture of the utility model uses：The axle portion that first rotation axis is relatively large in diameter is placed on fixed V-arrangement locating piece, Thimble height is adjusted according to shaft core position, and then pushes thimble along the Forward of rotation axis axis direction so that the front end conus portion of thimble It is in close contact with the centre bore of rotation axis, the front end of rotation axis is finally fitted into limit plate, reaches axially position；Then it adjusts The position of adjustable vee-block and height are used to support other end axle portion, rotate pressure plate respectively and are allowed to axis in vertical state, and The clamp nut on two pieces of pressure plates is screwed, fixed function is reached, reaches longitudinal register, and effective by two V-arrangement locating pieces Prevent axis from rotating.This fixture clamping stability is high, positioning accuracy is high, can reliably guarantee the accurate positionin of axis, and ensure The processing symmetry of shaft key groove.

The above embodiments are only for explaining the technical ideas and features of the present invention, and its object is to allow be familiar with technique Personage can understand the content of the utility model and be implemented, do not limit the protection scope of the present invention, All equivalent change or modifications according to made by the spirit of the present invention essence, should all cover in the protection scope of the utility model It is interior.

Claims (7)

1. a kind of shaft key groove fixture for processing, it is characterised in that：Including bottom plate（1）, be fixedly connected on bottom plate（1）On fixation V Shape locating piece（2）, slidable connection is in bottom plate（1）On adjustable V-arrangement positioning component（3）, be arranged in the fixed V-arrangement locating piece （2）With adjustable V-arrangement positioning component（3）On two hold-down mechanisms（4）, be arranged in bottom plate（1）The limit plate of upper side（5）And It is arranged in bottom plate（1）On relative to limit plate（5）The ejector pin component of the other side（6）；The adjustable V-arrangement positioning component（3）Including Traversing bracket（31）, adjustable vee-block（32）With fine tuning lead screw（33）；The bottom plate（1）It is equipped with linear guide（11）, the cross Move bracket（31）Lower end be equipped with bayonet can be with linear guide（11）Occlusion, forms being slidably matched for small friction；The adjustable V-arrangement Block（32）Vertical mid offer threaded hole and fine tuning lead screw（33）It is threadedly engaged；The traversing bracket（31）It is bonded adjustable V Shape block（32）Side offer upright guide rail（34）, the adjustable vee-block（32）Side be equipped with sliding slot（35）Can with it is vertical Guide rail（34）Occlusion；The fine tuning lead screw（33）Lower end be connected with first motor（36）, the first motor（36）It is fixed to connect It connects in traversing bracket（31）On；The motor（36）Driving fine tuning lead screw（33）Rotate and then control adjustable vee-block（32）Up and down It is mobile；The hold-down mechanism（4）Including threaded post（41）, be set in threaded post（41）Outer spring（42）, be threaded through threaded post （41）On pressure plate（43）And for compressing pressure plate（43）Clamp nut（44）；The limit plate（5）Pass through screw It is fixedly connected on the bottom plate（1）On；The ejector pin component（6）Including support base（61）, thimble bracket（62）, thimble（63）With Turn-screw（64）；The support base（61）It is slidably connected at connecting bottom board（1）；The thimble（63）It is fixedly connected on thimble branch Frame（62）Front side；The thimble bracket（62）Rear side in vertical direction slidable connection in support base（61）On；The top Needle rack（62）Vertical mid offer threaded hole and turn-screw（64）It is threadedly engaged；The turn-screw（64）Lower end It is connected with the second motor（65）, second motor（65）It is fixedly connected on thimble bracket（62）Lower end side；Described second Motor（65）Drive turn-screw（64）It rotates and then controls thimble（63）It moves up and down.

2. a kind of shaft key groove fixture for processing according to claim 1, it is characterised in that：It is described to be located at the positioning of adjustable V-arrangement Hold-down mechanism on block 3（4）In, the threaded post（41）It is fixedly connected on traversing bracket（31）On.

3. a kind of shaft key groove fixture for processing according to claim 1 or 2, it is characterised in that：The pressure plate（43）It is in Rectangular flat plate, can be in the horizontal plane with threaded post（41）It is rotated for axis.

4. a kind of shaft key groove fixture for processing according to claim 1, it is characterised in that：The thimble（63）Front end be in It is coniform.

5. a kind of shaft key groove fixture for processing according to claim 1, it is characterised in that：The fixed V-arrangement locating piece（2） V-shaped opening size be greater than adjustable vee-block（32）V-shaped opening size.

6. a kind of shaft key groove fixture for processing according to claim 1, it is characterised in that：The thimble bracket（62）It is upper End is equipped with feeler block（66）.

7. a kind of shaft key groove fixture for processing according to claim 1, it is characterised in that：The bottom plate（1）Four angles On be respectively arranged with mounting groove（12）.