CN211516607U

CN211516607U - Accurate positioning mechanism for station disc

Info

Publication number: CN211516607U
Application number: CN201922187535.5U
Authority: CN
Inventors: 王梦婕; 任秉文; 徐向军; 汤杭东; 周斌磊
Original assignee: Hengdian Group Innuovo Electric Co Ltd
Current assignee: Hengdian Group Innuovo Electric Co Ltd
Priority date: 2019-12-09
Filing date: 2019-12-09
Publication date: 2020-09-18
Anticipated expiration: 2029-12-09

Abstract

The utility model aims at providing a can avoid the station disc excessively to rotate or not rotate the condition of targetting in place and take place, enable the more accurate station accurate positioning mechanism for disc in work piece position on the station disc. The utility model provides a station disc is with accurate positioning mechanism, the station disc passes through reduction gears and actuating mechanism linkage, the station disc is fixed on the workstation, is equipped with the fixed plate on the workstation, the fixed plate is located station disc circumference outside, be equipped with mutually supporting constant head tank and setting element between fixed plate and station disc, the setting element includes the fixed block, the fixed block has the holding tank, it is protruding to be equipped with compression spring and location in the holding tank, the bellied one end in location stretches out in order to be located the fixed block outside under compression spring's effect, the station disc rotates so that the protruding entering constant head tank in location of the location of setting element or the location is protruding to break away from mutually with the constant head tank.

Description

Accurate positioning mechanism for station disc

Technical Field

The utility model relates to an automatic change the assembly device, concretely relates to station is accurate positioning mechanism for disc.

Background

For example, in the invention patent with the application number of 201710918262.X, some automatic assembling devices comprise a feeding mechanism and a press-fitting mechanism which are enclosed on the circumferential side of a station disc, the station disc is driven by a driving mechanism, and a plurality of workpiece positioning seats are arranged on the circumferential outer edge of the station disc.

The station disc is a part of the dividing disc, the dividing disc is high in manufacturing cost, and some manufacturers can realize linkage setting of the station disc in a mode of assembling a plurality of parts. A first gear concentric with the lower portion of the station disc is arranged below the station disc, a second gear is arranged at the output end of the motor, the second gear is meshed with the first gear to achieve rotation of the station disc, and the first gear and the second gear are both plane gears and are arranged in parallel with the station disc.

After driving motor stopped, because gear engagement clearance's relation, the station disc still can rotate certain angle, can make the center of the work piece positioning seat of station disc edge take place certain deviation to the work piece positioning seat that the messenger removed to the pressure equipment side and the pressure head axiality variation of pressure equipment mechanism, or pneumatic clamping jaw subassembly puts down the back work piece with the work piece and can deviate the settlement position, so that the pressure equipment effect variation between the work piece can lead to the production of substandard product.

Disclosure of Invention

The utility model aims at providing a can avoid the station disc excessively to rotate or not rotate the condition of targetting in place and take place, enable the more accurate station accurate positioning mechanism for disc in work piece position on the station disc.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an accurate positioning mechanism for a station disc, the station disc is linked with a driving mechanism through a speed reducing mechanism, the speed reducing mechanism comprises a first gear concentric with the station disc and a second gear arranged at the output end of the driving mechanism, the first gear and the second gear are meshed, it is characterized in that the station disc is fixed on a workbench, a fixed plate is arranged on the workbench and is positioned at the circumferential outer side of the station disc, a positioning groove and a positioning piece which are matched with each other are arranged between the fixed plate and the station disc, the positioning piece comprises a fixed block, the fixed block is provided with an accommodating groove, a compression spring and a positioning bulge are arranged in the accommodating groove, one end of the positioning bulge extends out under the action of the compression spring to be positioned outside the fixed block, the station disc rotates to enable the positioning protrusion of the positioning piece to enter the positioning groove or the positioning protrusion to be separated from the positioning groove.

The fixed plate and the station correspond to each other, when the station disc rotates to enable the positioning seat to move to a required station (for example, when the positioning seat is moved to the lower side of a pressure head of a press-mounting mechanism and workpiece press-mounting on the positioning column is needed, or the positioning seat is moved to the lower side of a clamping jaw assembly and feeding or discharging on the workpiece positioning seat is needed), the positioning piece can be matched with the positioning groove to enable the positioning protrusion to extend into the positioning groove, so that the station disc is limited to generate autorotation deviation, deviation can not occur in the position of the workpiece positioning seat of the station disc, deviation can not occur in the position of the workpiece on the workpiece positioning seat, feeding, discharging and press-mounting of the station can.

Preferably, the positioning piece is fixed on the fixing plate, the circumferential outer wall of the station disc is inwards concave to form the positioning groove, and under the action of the compression spring, the positioning protrusion enters the positioning groove, or the end part of the positioning protrusion abuts against the circumferential outer wall of the station disc. The arrangement is convenient for manufacturing and processing the station disc, and can also reduce the number of the positioning pieces, so long as one positioning piece is arranged.

Preferably, the peripheral outer wall of the station disc is provided with a plurality of positioning grooves which are arranged in an annular and uniform interval mode. One positioning groove can be corresponded to one station.

Preferably, the positioning protrusion is spherical, and the positioning groove includes a groove surface having an arc surface. The end part of the positioning protrusion can conveniently extend into the positioning groove, and the positioning protrusion can rotate at the same time, so that the abrasion of the positioning protrusion is reduced.

Preferably, the holding tank of fixed block is equipped with the supporting shoe, the supporting shoe has the standing groove to station disc side open-ended, and globular location is protruding to be located the standing groove, and the compression spring tip offsets with the terminal surface that the supporting shoe kept away from the station disc all the time. The arrangement prevents the compression spring from directly contacting with the positioning protrusion, so that the abrasion of the positioning protrusion is reduced.

Preferably, a plurality of small balls are arranged in the placing groove of the supporting block, the maximum outer diameter of each small ball is smaller than that of the corresponding positioning protrusion, the small balls are located on one side, away from the station disc, of the corresponding positioning protrusion, and under the action of the compression spring, the outer wall of each small ball is in contact with the outer wall of the corresponding positioning protrusion. The arrangement facilitates the rotation of the positioning protrusion.

Preferably, the number of the small balls is 4, and the 4 small balls are uniformly arranged in a ring shape at intervals and surround the positioning bulge. The above arrangement further prevents the rotation of the positioning projection.

Preferably, the position of the fixing block deviating from the positioning protrusion is provided with an air hole penetrating through the inside and the outside, and the air hole is communicated with the accommodating groove. The air hole is used for facilitating the circulation of air in the accommodating groove.

The utility model has the advantages of can avoid the station disc to take place the rotation skew and target in place with excessive rotation or not rotating, can guarantee that the position of work piece is more accurate on the station disc to in the work piece go up the unloading and the pressure equipment.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is an enlarged view of the positioning element of the present invention when it is engaged with the station disc.

Detailed Description

The invention will be further described with reference to the drawings and the specific embodiments.

Shown by fig. 1 to fig. 3, the utility model discloses an accurate positioning mechanism is used to station disc, station disc 1 is through reduction gears and the linkage of actuating mechanism 2, reduction gears include with station disc 1 endocentric first gear 11, set up in the second gear 21 of actuating mechanism 2 outputs, first gear 11 sets up with the meshing of second gear 21, the station disc passes through cross roller bearing 12 to be fixed on workstation 13, be equipped with fixed plate 3 on workstation 13, fixed plate 3 is located the 1 circumference outside of station disc, be equipped with constant head tank 10 and setting element 4 of mutually supporting between fixed plate 3 and station disc 1.

Wherein, setting element 4 is fixed on fixed plate 3, and 1 circumference outer wall indent of station disc is in order to form a plurality of constant head tanks 10, and a plurality of constant head tanks 10 are the even interval setting of annular on 1 circumference outer wall of station disc. The positioning protrusion 43 is spherical, and the positioning groove 10 includes a groove surface having an arc shape.

The positioning element 4 comprises a fixing block 41, the fixing block 41 is provided with a receiving groove 42, a compression spring (not shown in the figure) and a positioning protrusion 43 are arranged in the receiving groove 42, one end of the positioning protrusion 43 extends out under the action of the compression spring to be positioned outside the fixing block 41, and the station disc 1 rotates to enable the end part of the positioning protrusion 43 of the positioning element 4 to enter the positioning groove 10 or the positioning protrusion 43 to be separated from the positioning groove 10. The fixing plate 3 has a through female screw hole, and the fixing hole 41 of the retainer 4 is screwed into the female screw hole.

Be equipped with supporting block 44 in the holding tank 42 of fixed block 41, supporting block 44 has the standing groove to the side opening of station disc 1, and globular location is protruding 43 to be located the standing groove, and the compression spring tip offsets with the terminal surface of the keeping away from the station disc of supporting block 44 all the time. Wherein, the holding tank 42 is to one side opening so that the putting into of spare parts such as location arch 43, reduces the opening of holding tank 42 through the mode of riveting at last to avoid spare parts such as location arch 43 to fall out. The position of the fixing block 41 deviated from the positioning protrusion 43 is provided with an air hole 47 penetrating inside and outside, and the air hole 47 is communicated with the accommodating groove 42.

Four small balls 46 are arranged in the placing groove of the supporting block 44, the maximum outer diameter of each small ball 46 is smaller than the maximum outer diameter of the corresponding positioning protrusion 43, the four small balls 46 are all located on one side, away from the station disc 1, of the corresponding positioning protrusion 43, and under the action of the compression spring, the outer wall of each small ball 46 is in contact with the outer wall of the corresponding positioning protrusion 43. Wherein, four small balls 46 are uniformly arranged at intervals in a ring shape and surround the positioning bulge 43.

Claims

1. An accurate positioning mechanism for a station disc, the station disc is linked with a driving mechanism through a speed reducing mechanism, the speed reducing mechanism comprises a first gear concentric with the station disc and a second gear arranged at the output end of the driving mechanism, the first gear and the second gear are meshed, it is characterized in that the station disc is fixed on a workbench, a fixed plate is arranged on the workbench and is positioned at the circumferential outer side of the station disc, a positioning groove and a positioning piece which are matched with each other are arranged between the fixed plate and the station disc, the positioning piece comprises a fixed block, the fixed block is provided with an accommodating groove, a compression spring and a positioning bulge are arranged in the accommodating groove, one end of the positioning bulge extends out under the action of the compression spring to be positioned outside the fixed block, the station disc rotates to enable the positioning protrusion of the positioning piece to enter the positioning groove or the positioning protrusion to be separated from the positioning groove.

2. The precise positioning mechanism for the station disc as claimed in claim 1, wherein the positioning element is fixed on the fixing plate, the circumferential outer wall of the station disc is recessed to form the positioning groove, and the positioning protrusion enters the positioning groove or the end of the positioning protrusion abuts against the circumferential outer wall of the station disc under the action of the compression spring.

3. The precise positioning mechanism for the station disc as claimed in claim 1, wherein the station disc is provided with a plurality of positioning grooves at regular intervals in a ring shape on the circumferential outer wall.

4. The precision positioning mechanism for the station disc as claimed in claim 1 or 2, wherein the positioning protrusion is spherical and the positioning groove comprises an arc-shaped groove surface.

5. The accurate positioning mechanism for the station disc as claimed in claim 4, wherein a supporting block is arranged in the accommodating groove of the fixing block, the supporting block is provided with a placing groove which is open towards the side of the station disc, the spherical positioning protrusion is positioned in the placing groove, and the end of the compression spring is always abutted against the end surface of the supporting block which is far away from the station disc.

6. The accurate positioning mechanism for the station disc as claimed in claim 5, wherein the placing groove of the supporting block is provided with a plurality of small balls, the maximum outer diameter of the small balls is smaller than the maximum outer diameter of the positioning protrusions, the plurality of small balls are arranged on one side of the positioning protrusions far away from the station disc, and the outer walls of the small balls are in contact with the outer walls of the positioning protrusions under the action of the compression springs.

7. The precision positioning mechanism for the station disc as claimed in claim 6, wherein the number of the small balls is 4, and the 4 small balls are uniformly arranged in a ring shape at intervals and surround the positioning protrusion.

8. The accurate positioning mechanism for the station disc as claimed in claim 1, wherein the position of the fixed block deviating from the positioning protrusion is provided with an air hole penetrating from inside to outside, and the air hole is communicated with the accommodating groove.