CN217890651U - Arc trimmer of gyro wheel piece formula - Google Patents

Abstract

A roller sheet type arc trimmer comprises a base, a trimming mechanism and a driving mechanism. The trimming mechanism comprises a supporting arm, a rotating arm, an electric spindle mounting plate, a driving motor and a trimming roller, wherein diamond is plated on the surface of a cutting edge of the trimming roller. The driving mechanism comprises a speed reducer and a servo motor. According to the roller sheet type arc dresser, the dressing roller is designed to replace an original dressing pen, so that a CBN grinding wheel can be dressed efficiently. And then, the angle is adjusted manually by matching the speed reducer with the servo motor, so that the angle is more accurate and safer during dressing, and the curvature and the roughness of the dressed grinding wheel meet the requirements. And two proximity switches and a signaling block are arranged on the speed reducer, so that the angle adjusting range during trimming is limited, and excessive trimming is avoided. The roller sheet type arc dresser has higher practical value for improving the dressing of a small-curvature arc surface on a CBN grinding wheel.

Description

Arc trimmer of gyro wheel piece formula

Technical Field

The utility model relates to a emery wheel repairment technical field, especially a circular arc trimmer of gyro wheel piece formula.

Background

Two ends of the shaft neck part of the tensile, durable and fatigue part are R2.5-12.5 mm fillet sizes, and in order to grind the fillet sizes when rounding, fillets with required sizes are trimmed on two sides of the grinding wheel.

For example, in chinese patent CN201721162847.5, a grinding wheel arc dressing tool is disclosed, which comprises a dressing base, a supporting frame and an arc dresser, wherein the supporting frame is in an "angle" type structure and comprises a bottom plate and an inclined side plate, the bottom plate and the dressing base are mounted in a groove rail structure and fixed by a set screw, a sliding groove is formed in the side plate, a sliding plate is arranged in the sliding groove, and the arc dresser is fixed to the sliding plate by a screw through a pressing block.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a circular arc trimmer of gyro wheel piece formula to solve above-mentioned technical problem.

A roller sheet type arc trimmer comprises a base, a trimming mechanism arranged on the base and a driving mechanism arranged on the trimming mechanism; the trimming mechanism comprises an L-shaped supporting arm, a C-shaped rotating arm arranged on the inner side of an included angle of the supporting arm, an electric spindle mounting plate arranged at the end part of the rotating arm close to the base, a driving motor arranged on the electric spindle mounting plate, and a trimming roller arranged on the output end of the driving motor, wherein the surface of a cutting edge of the trimming roller is plated with diamond; the driving mechanism comprises a speed reducer connected with the trimming mechanism and a servo motor connected with the speed reducer; the servo motor drives the speed reducer and the trimming mechanism connected with the speed reducer to rotate, so that the angle of the trimming mechanism is adjusted.

Further, the base comprises a base body and at least one box body locking foot arranged on one side of the base body.

Furthermore, the end part of the base main body, which is far away from the box body locking foot, is provided with a mounting groove, and two end parts of the mounting groove are respectively provided with a lower end cover and an upper end cover.

Furthermore, a lower supporting pressing plate is arranged at the end part of the rotating arm close to the base main body, and an upper supporting pressing plate is arranged at the other end part of the rotating arm; a lower rotating shaft is arranged between the lower supporting pressing plate and the rotating arm, and an upper rotating shaft is arranged between the upper supporting pressing plate and the rotating arm; and a dust cover is arranged between the lower rotating shaft and the lower end cover.

Furthermore, a flat key slot is formed in one side, abutted against the rotating arm, of the lower rotating shaft; a plurality of flat key grooves are arranged on the upper rotating shaft at intervals.

Further, be provided with a dovetail plate on the electricity main shaft mounting panel, the dovetail plate with sliding connection between the driving motor, the dovetail plate is close to one side of swinging boom is provided with an adjustment mechanism.

Furthermore, a pivoting flange is arranged between the speed reducer and the supporting arm, and the upper rotating shaft extends out of the pivoting flange.

Furthermore, a signaling support is arranged on the end face of the speed reducer, which is opposite to the supporting arm, two proximity switches are arranged on the signaling support, and a signaling block is sleeved on the upper rotating shaft and is close to the end part of the signaling support; the included angle between the two proximity switches is adjustable.

Compared with the prior art, the utility model provides a pair of circular arc trimmer of gyro wheel piece formula is through the design the trimming roller replaces original trimming pen, makes it can the efficient trimming C limit emery wheel. And then, the speed is more stable, more accurate and safer during dressing through the matching of the speed reducer and the servo motor, so that the curvature and the roughness of the dressed grinding wheel meet the requirements. And two proximity switches and a signaling block are arranged on the speed reducer, so that the angle adjusting range during trimming is limited, and excessive trimming is avoided. The roller sheet type arc dresser has higher practical value for improving the dressing of a small-curvature arc surface on a CBN grinding wheel.

Drawings

Fig. 1 is a schematic structural view of the roller sheet type arc trimmer provided by the present invention.

Fig. 2 is a schematic structural diagram of another view angle of the roller blade type arc trimmer of fig. 1.

Fig. 3 is a schematic structural diagram of an end cap of the roller blade type arc dresser of fig. 1.

Fig. 4 is a schematic structural diagram of a support arm of the roller blade type arc dresser of fig. 1.

Detailed Description

Specific examples of the present invention will be described in further detail below. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.

As shown in fig. 1 to 4, it is a schematic structural diagram of a roller sheet type arc trimmer provided by the present invention. The roller blade type arc trimmer comprises a base 10, a trimming mechanism 20 arranged on the base 10, and a driving mechanism 30 arranged on the end face, far away from the base 10, of the trimming mechanism 20. It is contemplated that the roller blade type arc trimmer may further include other functional structures, such as fastening screws, motor shields, etc., which are well known to those skilled in the art and will not be described herein.

The base 10 includes a base body 11, and at least one case locking leg 12 provided at one side of the base body 11. The end of the base body 11 away from the box locking leg 12 is provided with a mounting hole 111, the end of the mounting hole 111 facing away from the trimming mechanism 20 is provided with a lower end cover 13, and the other end is provided with an upper end cover 14. A pair of angular contact bearings are arranged in the mounting hole 111, a first rotating shaft hole 141 is formed in the upper end cover 14, and the angular contact bearings are fixed through the lower end cover 13 and the upper end cover 14. The angular contact bearing can ensure the axial rigidity of the rotating shaft inserted therein, and the lower end cover 13 and the upper end cover 14 can fix the rotating shaft inserted therein to prevent the rotating shaft from moving axially.

The trimming mechanism 20 comprises a supporting arm 21 which is L-shaped and is connected with the base main body 11, a rotating arm 22 which is C-shaped and is arranged at the inner side of the included angle of the supporting arm 21, an electric spindle mounting plate 23 which is arranged at the end part of the rotating arm 22 close to the base 10, a driving motor 24 which is arranged on the electric spindle mounting plate 23, and a trimming roller 25 which is arranged at the output end of the driving motor 24.

Referring to fig. 1, the longer end of the support arm 21 is screwed to the base body 11, and the support arm 21 and the base body 11 are not adjustable, so as to avoid changing the angle thereof due to external factors during use, thereby affecting the precision during trimming, and facilitating the detachment and replacement of other parts mounted on the support arm 21. The end of the shorter end of the support arm 21 is provided with a pivot hole 211 for passing through the rotation shaft.

The end of the rotating arm 22 close to the base body 11 is provided with a lower supporting pressing plate 221, and the other end is provided with an upper supporting pressing plate 222. And a second rotating shaft hole 223 is formed at the center of the connection between the lower support pressing plate 221 and the rotating arm 22 and the upper support pressing plate 222. A lower rotation shaft 224 is disposed in a second rotation shaft hole 223 provided between the lower support pressing plate 221 and the rotation arm 22, and an upper rotation shaft 225 is disposed in a second rotation shaft hole 223 provided between the upper support pressing plate 222 and the rotation arm 22. The lower rotation shaft 224 and the upper rotation shaft 225 connect the rotation arm 22 with the base main body 11 and the support arm 21, and rotate the rotation arm 22 along the lower rotation shaft 224 and the upper rotation shaft 225. One side of the lower rotating shaft 224 abutting against the rotating arm 22 is provided with a flat key slot. One side of the lower rotating shaft 224, which is far away from the rotating arm 22, is inserted into the angular contact bearing, so that the lower rotating shaft 224 has high axial rigidity, and the part of the lower rotating shaft 224 inserted into the angular contact bearing is fixed by the lower end cover 13 and the upper end cover 14, so that the lower rotating shaft 224 is prevented from moving axially in the using process. A plurality of flat key slots are spaced on the upper rotating shaft 225 for connecting with the upper supporting pressure plate 222 and the driving mechanism 30. The end of the lower support pressure plate 221 facing the base body 11 and the end of the upper support pressure plate 222 facing the base body are each provided with a dust cover 226. The dust cover 226 prevents debris from the grinding wheel from falling into the gap and thereby affecting the rotation of the rotating arm 22.

Be provided with a dovetail plate 231 on the electricity main shaft mounting panel 23, driving motor 24 slides and sets up on the dovetail plate 231, dovetail plate 231 is close to one side of swinging boom 22 is provided with an adjustment mechanism 232. The adjusting mechanism 232 includes an adjusting bracket 2321, and an adjusting bolt 2322 disposed on the adjusting bracket 2321. One end of the adjusting bolt 2322 abuts against the driving motor 24, and an operator can adjust the position of the driving motor 24 by screwing the adjusting bolt 2322.

The dressing roller 25 is disposed at an output end of the driving motor 24, and a cutting edge surface of the dressing roller 25 is plated with diamond to improve surface hardness of the cutting edge, thereby improving efficiency of dressing a grinding wheel and durability of the dressing roller 25.

The driving mechanism 30 includes a speed reducer 31 connected to the dressing mechanism, and a servo motor 32 connected to the speed reducer 31.

The reducer 31 is sleeved on the upper rotating shaft 225, a pivoting flange 33 is arranged between the reducer 31 and the supporting arm 21, and the upper rotating shaft 225 extends out of the pivoting flange 33. The pivot flange 33 is used to adjust the distance between the speed reducer 31 and the support arm 21. The end face, back to the supporting arm 21, of the speed reducer 31 is provided with a signaling support 34, the signaling support 34 is provided with two proximity switches 35, and a signaling block 36 which is sleeved on the end portion, close to the signaling support 34, of the upper rotating shaft 225. And the included angle between the two proximity switches 35 is 90 degrees. The signaling block 36 rotates with the upper rotating shaft 225, and reaches the maximum adjusting range when touching the proximity switch 35 on one side. It is contemplated that the angle between the two proximity switches 35 may be adjusted according to actual requirements to adjust the trimming range.

The speed reducer 31 is connected with the output end of the servo motor 32, and slows down the power applied to the upper rotating shaft 225 by the servo motor 32, so that the driving motor 24 rotates by a certain angle under the driving of the servo motor 32, and the circular arc required by machining can be trimmed on the side surface of the grinding wheel.

Compared with the prior art, the utility model provides a pair of circular arc trimmer of gyro wheel piece formula is through the design trimming roller 25 replaces original trimming pen, makes it can the efficient trimming CBN emery wheel. Then, the speed reducer 31 is matched with the servo motor 32 to replace manual angle adjustment, so that the angle adjustment is more accurate and safer during dressing, and the curvature and the roughness of the dressed grinding wheel meet requirements. Two proximity switches 35 and a signaling block 36 are arranged on the speed reducer, so that the angle adjusting range during trimming is limited, and excessive trimming is avoided. The roller sheet type arc dresser has higher practical value for improving the dressing of a small-curvature arc surface on a CBN grinding wheel.

The above description is only for the preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention, and any modification, equivalent replacement or improvement within the spirit of the present invention is encompassed by the claims of the present invention.

Claims (8)

1. The utility model provides a circular arc trimmer of gyro wheel piece formula which characterized in that: the roller sheet type arc trimmer comprises a base, a trimming mechanism arranged on the base and a driving mechanism arranged on the trimming mechanism; the trimming mechanism comprises an L-shaped supporting arm, a C-shaped rotating arm arranged on the inner side of an included angle of the supporting arm, an electric spindle mounting plate arranged at the end part of the rotating arm close to the base, a driving motor arranged on the electric spindle mounting plate, and a trimming roller arranged on the output end of the driving motor, wherein the surface of a cutting edge of the trimming roller is plated with diamond; the driving mechanism comprises a speed reducer connected with the trimming mechanism and a servo motor connected with the speed reducer; the servo motor drives the speed reducer and the trimming mechanism connected with the speed reducer to rotate, so that the angle of the trimming mechanism is adjusted.

2. The roller blade type arc trimmer of claim 1, wherein: the base comprises a base main body and at least one box body locking foot arranged on one side of the base main body.

3. The roller blade type arc dresser of claim 2, wherein: the end part of the base main body, which is far away from the box body locking foot, is provided with a mounting groove, and two end parts of the mounting groove are respectively provided with a lower end cover and an upper end cover.

4. The roller blade type arc trimmer of claim 3, wherein: a lower supporting pressing plate is arranged at the end part of the rotating arm close to the base main body, and an upper supporting pressing plate is arranged at the other end part of the rotating arm; a lower rotating shaft is arranged between the lower supporting pressing plate and the rotating arm, and an upper rotating shaft is arranged between the upper supporting pressing plate and the rotating arm; and a dustproof cover is arranged between the lower rotating shaft and the lower end cover.

5. The roller blade type arc trimmer of claim 4, wherein: one side of the lower rotating shaft, which is abutted against the rotating arm, is provided with a flat key groove; a plurality of flat key grooves are arranged on the upper rotating shaft at intervals.

6. The roller blade type arc trimmer of claim 1, wherein: the electric spindle mounting plate is provided with a dovetail plate, the dovetail plate is connected with the driving motor in a sliding mode, and one side, close to the rotating arm, of the dovetail plate is provided with an adjusting mechanism.

7. The roller blade type arc trimmer of claim 4, wherein: a pivoting flange is arranged between the speed reducer and the supporting arm, and the upper rotating shaft extends out of the pivoting flange.

8. The roller blade type arc trimmer of claim 4, wherein: a signal sending support is arranged on the end face, back to the supporting arm, of the speed reducer, two proximity switches are arranged on the signal sending support, and a signal sending block is sleeved on the upper rotating shaft and is close to the end portion of the signal sending support; the included angle between the two proximity switches is adjustable.

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