CN212217791U - Combined clamp for machining and grinding outer circular arc of drum sector plate - Google Patents

Abstract

The utility model relates to the technical field of combined fixtures, in particular to a combined fixture for machining and turning outer arcs of a drum sector plate, which comprises a positioning main shaft, a gasket, a distance ring, a distance sleeve, a baffle, a nut, a bolt, a washer, a positioning ring, an anti-rotation positioning pin, a cross, a sector plate and a drum component, wherein the positioning main shaft is assembled in a central inner hole at the left side of the drum component, the outer wall of the drum component is assembled with a plurality of anti-rotation positioning pins, the drum component is also assembled with the cross and the gasket which are matched with the anti-rotation positioning pins for use, the distance sleeve is sleeved at the main shaft extending end of the drum component, the combined fixture for machining and turning outer arcs of the drum sector plate avoids the defects of low surface roughness, high machining cost, large machining difficulty, time and power consumption, low production efficiency and reduces the machining difficulty and the machining cost, the single piece processing time is shortened, and the production efficiency is improved.

Description

Combined clamp for machining and grinding outer circular arc of drum sector plate

Technical Field

The utility model relates to a modular fixture technical field especially relates to an outer arc processing car grinds and uses modular fixture of reel sector plate.

Background

The uncoiler and the coiler are heavy closing equipment for coiling a thin plate on a rolling mill production line, a heavy closing part winding drum is formed by assembling sector plates, pyramid sleeves, a main shaft, a hollow shaft, an axial radial wedge, a sliding wedge and the like, the design structure of 4 sector plates of an outer ring assembled by the winding drum is complex, the design and manufacturing precision is high, and the machining precision determines the roughness of a plate coiling surface and the straightness precision of a plate coil. The length of the sector plate is 920 +/-0.1 mm, the outer arc R25000-0.1, the surface roughness is 1.6, the cylindricity is 0.1 mm, the inner arc R200 is provided with a 12-degree sawtooth-shaped inclined plane at the position 3 and a groove matched with the inclined wedge in an assembling way, the parallelism and the verticality are required to be 0.1 mm, and the design precision is high. The sector plate is processed by a single piece in a traditional mode, the outer circular arc is processed by a planer, the roughness is low, and the design requirement cannot be met by 1.6; or the multi-axis linkage numerical control machining cost is high, the machining difficulty is high, the machining time is long, the time and the labor are consumed, and the production efficiency is low. And the manufacturing errors of all parts are accumulated to form assembly errors during assembly, the phenomenon that the 4 fan-shaped plates are not on the same circumference after assembly exists, and the out-of-round runout of the paper roll during assembly and trial run is difficult to ensure to be 0.08 mm.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the outer arc processing car of reel sector plate that proposes grinds uses modular fixture.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

circular arc adds clamping apparatus for car grinds outside reel sector plate, including location main shaft, gasket, distance ring, distance cover, baffle, nut, bolt, packing ring, holding ring, prevent changeing locating pin, cross, sector plate and reel subassembly, the location main shaft assembly is in the left center hole of reel subassembly, the outer wall of reel subassembly is equipped with a plurality of locating pins of preventing changeing, still be equipped with in the reel subassembly with a plurality of cross and the gasket of preventing changeing the locating pin cooperation and using, the main shaft of reel subassembly stretches out the pot head and is equipped with the distance cover, the left end of distance cover is equipped with baffle (), the inner chamber cover of distance cover is equipped with the distance ring, the tip threaded connection nut of distance ring, the nut is screwed up and constitutes an organic whole structure with reel subassembly.

Preferably, the distance sleeve and the distance sleeve are mutually matched in size.

Preferably, the positioning ring, the anti-rotation positioning pin, the cross shaft, the sector plate and the winding drum assembly adopt an integrated assembly mode.

The utility model provides a pair of outer arc processing car grinds uses modular fixture of reel sector plate, beneficial effect lies in: the clamp is used for simultaneously clamping four fan-shaped plates to process the outer arc, the size phi of the outer arc is 5000-0.1 by utilizing the clamp for rough machining and finish machining, all procedures are respectively completed by clamping once, various design requirements of the size tolerance and the form and position tolerance of the outer arc design and the assembly requirement of components are met, the outer circle jumping of a winding drum is 0.08 mm, the processing defects of low surface roughness, high processing cost, high processing difficulty, time and labor consumption and low production efficiency of single machined parts are avoided, the processing difficulty and the processing cost are reduced, the single piece processing time is shortened, and the production efficiency is improved.

Drawings

Fig. 1 is a schematic structural view of a combined clamp for machining and turning an outer arc of a drum sector plate, which is provided by the utility model;

fig. 2 is the utility model provides an outer arc processing car of reel sector plate grinds and uses modular fixture side view.

In the figure: the positioning device comprises a positioning main shaft 1, a gasket 2, a distance ring 3, a distance sleeve 4, a baffle 5, a nut 6, a bolt 7, a gasket 8, a positioning ring 9, an anti-rotation positioning pin 10, a cross shaft 11, a sector plate 12 and a winding drum assembly 13.

Detailed Description

The following description sufficiently illustrates specific embodiments of the invention to enable those skilled in the art to practice and reproduce it.

Referring to fig. 1-2, the combined clamp for machining and grinding the outer arc of the sector plate of the winding drum comprises a positioning main shaft 1, a gasket 2, a distance ring 3, a distance sleeve 4, a baffle plate 5, a nut 6, a bolt 7, a washer 8, a positioning ring 9, an anti-rotation positioning pin 10, a cross shaft 11, a sector plate 12 and a winding drum assembly 13, its characterized in that, the assembly of location main shaft 1 is in the left center hole of reel subassembly 13, the outer wall of reel subassembly 13 is equipped with a plurality of anti-rotation locating pins 10, still be equipped with in the reel subassembly 13 with a plurality of cross 11 and the gasket 2 of preventing that the cooperation of anti-rotation locating pin 10 was used, the main shaft of reel subassembly 13 stretches out the pot head and is equipped with distance cover 4, the left end of distance cover 4 is equipped with baffle (5), the inner chamber cover of distance cover 4 is equipped with distance ring 3, the tip threaded connection nut 6 of distance ring 3, nut 6 screws up and constitutes body structure with reel subassembly 13.

The distance sleeve 4 and the distance sleeve 4 are mutually matched in size. The difference between the maximum and minimum values of the outer circle of the spool assembly 13 and the wedge inclination of 12 ° determine the assembly position distance of the sector plates 12. The positioning ring 9, the anti-rotation positioning pin 10, the cross shaft 11, the sector plate 12 and the winding drum assembly 13 adopt an integrated assembly mode.

The working principle is as follows: when the fixture is used, the sliding axial distance of the wedge is calculated according to the difference between the maximum value and the minimum value of the outer circle of the winding drum and the inclination of the wedge block of 12 degrees, and the assembling position of the sector plate is determined. Assembling components such as a winding drum assembly pyramid sleeve, a main shaft, a hollow shaft, an axial radial wedge, a sliding wedge and the like, determining the size of an assembling positioning ring 9 according to the sliding axial distance 27 of the wedge, assembling a positioning main shaft 1 in a central inner hole at the left end of the winding drum assembly, assembling an anti-rotating pin 10, assembling a cross shaft 11 and a gasket 2, determining the size of a distance sleeve 4 according to the extension length of the main shaft of the winding drum assembly, assembling a baffle plate 5, spot-welding the baffle plate at the end part of a sector plate, assembling a distance ring 3 according to the size of the assembling baffle plate, and then assembling a nut 6 to be. And (3) processing the sizes of the two ends of the clamp, processing positioning reference holes, and finishing rough and finish machining and grinding processing of the outer arc size phi 5000-0.1 by taking the center holes of the two ends as processing references.

The terminology used herein is for the purpose of description and illustration, rather than of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims (3)

1. The combined clamp for machining and grinding the outer arc of the drum sector plate comprises a positioning main shaft (1), a gasket (2), a distance ring (3), a distance sleeve (4), a baffle plate (5), a nut (6), a bolt (7), a gasket (8), a positioning ring (9), an anti-rotation positioning pin (10), a cross shaft (11), a sector plate (12) and a drum assembly (13), and is characterized in that the positioning main shaft (1) is assembled in a central inner hole at the left side of the drum assembly (13), the outer wall of the drum assembly (13) is assembled with a plurality of anti-rotation positioning pins (10), the cross shaft (11) and the gasket (2) which are matched with the anti-rotation positioning pins (10) are further assembled in the drum assembly (13), the distance sleeve (4) is sleeved at the extension end of the main shaft of the drum assembly (13), and the baffle plate (5) is assembled at the left end of the distance sleeve (, the inner cavity cover of distance cover (4) is equipped with distance ring (3), the tip threaded connection nut (6) of distance ring (3), nut (6) are screwed up and are constituteed an organic whole structure with reel subassembly (13).

2. The combination jig for turning and grinding the outer arc of the drum segment plate according to claim 1, wherein the distance sleeve (4) and the distance sleeve (4) are mutually matched in size.

3. The combined clamp for machining and grinding the outer arc of the drum sector plate according to claim 1, wherein the positioning ring (9), the anti-rotation positioning pin (10), the cross shaft (11), the sector plate (12) and the drum assembly (13) are integrally assembled.

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