CN207431771U

CN207431771U - Three axis positioning fixtures

Info

Publication number: CN207431771U
Application number: CN201721302386.7U
Authority: CN
Inventors: 陈跃忠; 陈勤飞; 沈引良; 张艳; 徐其兵
Original assignee: Seven Feng Jinggong Science And Technology Co Ltd
Current assignee: Seven Feng Jinggong Science And Technology Co Ltd
Priority date: 2017-10-11
Filing date: 2017-10-11
Publication date: 2018-06-01
Anticipated expiration: 2027-10-11

Abstract

The utility model is related to a kind of machine tools, especially a kind of three axis positioning fixtures.Several positioning seats including discoid pedestal and on pedestal, hinged positioning body, positioning body afterbody are fixed by bolt one with positioning seat on positioning seat, the head of positioning body sets installing port, installing port includes upper wall and lower wall, and shaft is worn between upper wall and lower wall, positioning disk is set in shaft.The utility model has the features such as simple in structure, simple in structure, production cost is relatively low, and processing efficiency is higher, and adaptation part ability is preferable, and machining accuracy is preferable.

Description

Three axis positioning fixtures

Technical field

The utility model is related to a kind of machine tools, especially a kind of three axis positioning fixtures.

Background technology

Fixture refers to be used for fixing processing object during machine-building, is allowed to occupy correct position, to receive construction Or the device of detection, it is also known as fixture.In a broad sense, any process in technical process, for rapidly, easily and safely The device of workpiece is installed, all can be described as fixture.

Fixture is usually by setting element, clamping device, to knife induction element, indexing means, connecting element and clamp body Deng composition.

The utility model patent of one entitled lathe clamper, Publication No. CN202571893U, the utility model disclose A kind of lathe clamper is configured to disc base, disc base lower part connection lathe clamping limb, and folder is arranged at disc base top Tool.The utility model enables non-cylindrical work to carry out surface of revolution processing to it by lathe, efficiency during the lathe process surface of revolution To be far above the other equipments such as milling machine so that the practicality of lathe is fully used, and improves the processing efficiency of workpiece, operation letter Change, save the input in terms of time and manpower, practical function is preferable.

The utility model patent has certain limitation in use, and each component of retaining part is relatively fixed, can not Different size of workpiece is adapted to, simultaneously as the rigid connection of each component, is not easy to offset shaking for processing generation in process It is dynamic, cause the detraction of precision.

Utility model content

The utility model is mainly for complicated present in the prior art, and production cost is higher, and processing efficiency is relatively low, The technical problems that adapt to that part ability is poor, and machining accuracy is poor etc., provide a kind of simple in structure, and production cost is relatively low, processing effect Rate is higher, and adaptation part ability is preferable, the preferable three axis positioning fixture of machining accuracy.

To achieve the above object, the utility model employs following technical solution：

Three axis positioning fixtures include discoid pedestal and several positioning seats on pedestal, hingedly determine on positioning seat Position body, positioning body afterbody fixed by bolt one with positioning seat, and the head of positioning body sets installing port, installing port include upper wall with Lower wall wears shaft, positioning disk is set in shaft between upper wall and lower wall.

Since the contact surface of positioning disk is cambered surface, only positioned when being contacted with workpiece there are one point touch workpiece In can accurately determine a contact point, so as to reach workpiece positioning high precision.

When workpiece is snapped onto in fixture, since positioning disk can rotate around the axis, provided to workpiece adjustment position larger Freedom reduces the CONTACT WITH FRICTION between fixture and workpiece, prevents the surface of disfiguring workpiece.

Preferably, setting several grooves on pedestal, groove is located at the engaging portion of positioning seat and pedestal.Groove is positioning seat Relative position is adjusted between pedestal, space is provided.

Preferably, setting bolt two in groove, the both ends of bolt two are in contact respectively with pedestal and positioning seat.Positioning seat Height adjusted by bolt two, so as to adjust position height of the workpiece in fixture.

Preferably, setting spring between positioning seat and positioning body, the both ends of spring connect respectively with pedestal and positioning body It touches.By one lever mechanism of hinged formation between positioning seat and positioning body, adjusted by the bolt one of afterbody so that positioning body Setting is horizontally disposed with or be slightly slanted, to reach the position on adjustment positioning body head, adapts to the work of various different sizes and size Part.Spring between positioning seat and positioning body plays cushioning effect, buffers the active force that cutter applies workpiece in process, Prevent workpiece from influencing machining accuracy in the play of fixture.

Preferably, the quantity of positioning seat is three, positioning seat is evenly arranged around the center of circle of pedestal.At grade, Three fixed points are most basic stabilization fixed forms, prevent the play of workpiece in fixture in a certain direction.

Preferably, the head of positioning body is folded upward at, upper wall forms inclination alpha with positioning body, and the angular range of inclination alpha is 150°-170°.Facilitate the installation and removal of workpiece, meanwhile, it gives appropriateness of the positioning disk in installing port freely, preferably adapts to Workpiece size.

Preferably, plane where positioning disk and plane where upper wall are parallel to each other.

To sum up, the utility model has simple in structure, and simple in structure, production cost is relatively low, and processing efficiency is higher, adapts to zero The features such as part ability is preferable, and machining accuracy is preferable.

Description of the drawings

Fig. 1 is the overall structure diagram of the utility model embodiment；

Fig. 2 is the schematic front view of the utility model embodiment；

Fig. 3 is the schematic cross-sectional view of Fig. 2.

Reference sign：1- pedestals, 2- positioning seats, 3- positioning bodies, 4- positioning disks, 5- shafts, 6- springs, 31- bolts One, 32- installing port, 33- bolts two, 321- upper walls, 322- lower walls.

Specific embodiment

For a further understanding of the utility model, the utility model preferred embodiment is retouched with reference to embodiment It states, but it is to be understood that these descriptions are simply for the feature and advantage of further explanation the utility model rather than to this practicality The limitation of new claim.

A kind of three axis positioning fixtures are present embodiments provided, as shown in attached drawing 1,2 and 3, including discoid pedestal 1 and peace Three positioning seats 2 on pedestal 1, positioning seat 2 are evenly arranged around the center of circle of pedestal 1；Three grooves are set on pedestal 1, it is recessed Slot is located at the engaging portion of positioning seat 2 and pedestal 1；Bolt 2 33 is set in groove, and the both ends of bolt 2 33 are respectively with pedestal 1 and calmly Position seat 2 is in contact；The distance between positioning seat 2 and pedestal 1 are adjusted by bolt 2 33.

Hinge joint is set on positioning seat 2, is hinged with the middle part of positioning body 3,3 afterbody of positioning body passes through bolt 1 and positioning Seat 2 is fixed, and bolt 1 is adjustable, and rotating bolt 1 can adjust the angle of inclination of positioning body 3；Positioning seat 2 and positioning body 3 Spring 6 is set between front end, and the both ends of spring 6 are in contact respectively with pedestal 1 and positioning body 3；Spring 6 absorbs workpiece and is processed The machining stress of generation increases machining accuracy.

The head of positioning body 3 sets installing port 32, and installing port 32 is in a groove shape structure, and installing port 32 includes upper wall 321 under Wall 322 wears shaft 5, sets positioning disk 4 in shaft 5, positioning disk 4 can be rotated with shaft between upper wall 321 and lower wall 322.

The head of positioning body 3 is folded upward at, and upper wall 321 forms inclination alpha with positioning body 3, and the angular range of inclination alpha is 150°-170°；4 place plane of positioning disk and 321 place plane of upper wall are parallel to each other.

The explanation of above example is only intended to the method and its core concept that help understands the utility model.It should refer to Go out, it for those skilled in the art, can also be to this on the premise of the utility model principle is not departed from Some improvement and modification can also be carried out for utility model, these improvement and modification also fall into the protection domain of the utility model claims It is interior.

Claims

1. a kind of three axis positioning fixtures, several positioning seats (2) including discoid pedestal (1) and on pedestal (1), It is characterized in that：Hinged positioning body (3), positioning body (3) afterbody pass through bolt one (31) and positioning seat (2) on the positioning seat (2) Fixed, the head of positioning body (3) sets installing port (32), and installing port (32) includes upper wall (321) and lower wall (322), upper wall (321) shaft (5) is worn between lower wall (322), positioning disk (4) is set in shaft (5).

2. three axis positioning fixture according to claim 1, it is characterised in that：Several grooves are set on the pedestal (1), it is recessed Slot is located at the engaging portion of positioning seat (2) and pedestal (1).

3. three axis positioning fixture according to claim 2, it is characterised in that：Bolt two (33), spiral shell are set in the groove The both ends of bolt two (33) are in contact respectively with pedestal (1) and positioning seat (2).

4. the three axis positioning fixtures according to claim 1 or 2 or 3, it is characterised in that：The positioning seat (2) and positioning body (3) spring (6) is set between, and the both ends of spring (6) are in contact respectively with pedestal (1) and positioning body (3).

5. the three axis positioning fixtures according to claim 1 or 2 or 3, it is characterised in that：The quantity of the positioning seat (2) is Three, positioning seat (2) is evenly arranged around the center of circle of pedestal (1).

6. the three axis positioning fixtures according to claim 1 or 2 or 3, it is characterised in that：The head of the positioning body (3) to Upper bending, upper wall (321) form inclination alpha with positioning body (3), and the angular range of inclination alpha is 150 ° -170 °.

7. the three axis positioning fixtures according to claim 1 or 2 or 3, it is characterised in that：Plane where the positioning disk (4) It is parallel to each other with plane where upper wall (321).