CN209737354U - Fixing device for processing ceramic valve ball - Google Patents

Abstract

The utility model discloses a fixing device for processing of ceramic valve ball, including dabber, elastic jacket, circular inclination dog and latch segment, the centre bore both ends that elastic jacket pressed from both sides all are equipped with the inflation inclination, circular inclination dog sets up respectively at the both ends of this elastic jacket, circular inclination dog with inflation inclination looks adaptation still includes the rotation ware, the rotation ware is located the latch segment with between the circular inclination dog, the rotation ware includes that first rotation piece, second rotate piece, 4 at least balls, left nut, right nut and sleeve, the terminal surface of first rotation piece is equipped with first ball runway. The utility model has the advantages that: the sliding friction generated by the rotation of the end surface of the locking block relative to the end surface of the circular slope stop block is changed into rolling friction in the screwing process, so that the locking block is screwed easily without force.

Description

fixing device for processing ceramic valve ball

Technical Field

The utility model relates to a zirconia pottery numerical control processing technology field, concretely relates to a fixing device for processing of ceramic valve ball.

Background

Prior art 1(CN204308714U) discloses a ceramic valve ball processing apparatus, which includes a ceramic valve ball fixing assembly for fixing a ceramic valve ball and a tool assembly for processing the surface of the ceramic valve ball, wherein the ceramic valve ball fixing assembly includes two fixing bases which are oppositely disposed and can rotate and move back and forth, a fixing device for allowing the ceramic valve ball to penetrate through and fix the ceramic valve ball is movably disposed between the two fixing bases, a fastening block for fixing the fixing device between the two fixing bases is disposed on one of the fixing bases corresponding to the fixing device, the tool assembly includes a tool fixing base capable of feeding along three axes of XYZ, a rotatable tool mounting base is disposed on the tool fixing base facing the fixing device, a diamond grinding wheel is disposed on the tool mounting base corresponding to the fixing device, and the fixing device includes a mandrel, Elastic clamping sleeve, circular inclination dog and latch segment that can circumference inflation or shrink are equipped with the locating hole with this fixed base matched with on this dabber both ends, elastic clamping sleeve overlaps in this dabber, evenly is equipped with a plurality of rectangular form breachs toward middle direction in the both ends of this elastic clamping sleeve, and the centre bore both ends that this elastic clamping sleeve all are equipped with the inflation inclination, and this circular inclination dog is two, and these two circular inclination dogs set up respectively at the both ends that this elastic clamping sleeve, this circular inclination dog with inflation inclination looks adaptation, the latch segment is two, and the outside of this circular inclination dog is located to these two latch segments.

When fixed ceramic valve ball, earlier overlap in the dabber with the elasticity clamp cover, stretch into the centre bore of ceramic valve ball with the elasticity clamp cover, overlap two circular inclination dogs in the dabber, this elasticity clamp cover's both ends are arranged respectively in to these two circular inclination dogs, this circular inclination dog cooperatees with the inflation inclination that the elasticity pressed from both sides the cover, be equipped with matched with screw thread on this dabber and the latch segment, overlap the latch segment in the dabber and screw, thereby it promotes towards the elasticity clamp cover inboard to overlap circular inclination dog, make the elasticity clamp cover inflation, can not rock until ceramic valve ball, rotate, thereby accomplish the fixed of ceramic valve ball.

The disadvantages are as follows: when the ceramic valve ball is fixed, the locking block is sleeved on the mandrel and screwed tightly. The resistance is greater and greater in the screwing process, the locking block is screwed harder and harder, and the resistance mainly comes from sliding friction generated by the rotation of the end face of the locking block relative to the end face of the circular slope stop block.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides a fixing device for processing of ceramic valve ball becomes rolling friction at the rotatory and sliding friction that produces of the terminal surface of the relative circular inclination dog of terminal surface of latch segment at the in-process of screwing to it is light to make the latch segment screw, does not exert oneself.

A fixing device for processing a ceramic valve ball comprises a mandrel, an elastic jacket, a circular slope stop block, a locking block and a rotator, wherein expansion slopes are arranged at two ends of a central hole of the elastic jacket, the circular slope stop block is respectively arranged at two ends of the elastic jacket, the circular slope stop block is matched with the expansion slopes, the rotator is positioned between the locking block and the circular slope stop block and comprises a first rotator, a second rotator, at least 4 balls, a left nut, a right nut and a sleeve, a first ball track is arranged on the end face of the first rotator, a second ball track is arranged on the end face of the second rotator, the balls respectively abut against the first ball track and the second ball track, so that the first rotator rotates relative to the second rotator, the end face of the first rotating piece is provided with a first countersunk through hole, the left nut is located in the first countersunk through hole, the end face of the second rotating piece is provided with a second countersunk through hole, the right nut is located in the second countersunk through hole, one end of the sleeve is in threaded connection with the left nut, the other end of the sleeve is in threaded connection with the right nut, so that the balls are located between the first ball track and the second ball track, and the sleeve is sleeved with the mandrel.

Preferably, the ball is a steel ball.

Preferably, the sleeve is a clearance fit with the mandrel.

Preferably, the first rotating member and the second rotating member are both discoid.

The beneficial effects of the utility model are embodied in: when fixing ceramic valve ball, the latch segment is rotatory to be driven the rotating device and make circular inclination dog promote towards the elasticity presss from both sides the cover inboard, makes the elasticity press from both sides the cover inflation, can not rock, rotate until ceramic valve ball to accomplish the fixed of ceramic valve ball. In the screwing process, the resistance of the locking block is increasingly large, the pressure of the locking block and the first rotating piece is increasingly large, the pressure of the second rotating piece and the circular inclination stop block is increasingly large, the first rotating piece can rotate relative to the second rotating piece, the locking block continues to rotate at the moment, the first rotating piece is driven to rotate under the action of friction force, and the rolling balls respectively have rolling friction with the first rotating piece and the second rotating piece. Compared with the prior art, the locking block needs less tightening force at the moment, and the tightening of the locking block is labor-saving.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

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

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

Fig. 3 is a sectional view showing the structural positions of the first rotating member and the second rotating member according to the present invention;

Fig. 4 is a front view of the first rotating member or the second rotating member of the present invention.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

it is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

As shown in fig. 1 to 4, a fixing device for ceramic valve ball processing comprises a mandrel 1, an elastic jacket 2, a circular slope stopper 3, a locking block 4, wherein the locking block 4 cooperates with the mandrel 1 to form a screw pair, both ends of a central hole of the elastic jacket 2 are provided with an expansion slope (not shown), the circular slope stopper 3 is respectively arranged at both ends of the elastic jacket 2, the circular slope stopper 3 is adapted to the expansion slope, the fixing device further comprises a rotator 5, the rotator 5 is positioned between the locking block 4 and the circular slope stopper 3, the rotator 5 comprises a first rotator 51, a second rotator 52, at least 4 balls 53, a left nut 54, a right nut 55 and a sleeve 56, an end surface of the first rotator 51 is provided with a first ball track 56, an end surface of the second rotator 52 is provided with a second ball track 57, the balls 53 respectively abut against the first ball track 56 and the second ball track 57, so that the first rotating member 51 rotates relative to the second rotating member 52, the end surface of the first rotating member 51 is provided with a first countersunk through hole 511, the left nut 54 is positioned in the first countersunk through hole 511, the end surface of the second rotating member 52 is provided with a second countersunk through hole 521, the right nut 55 is positioned in the second countersunk through hole 521, one end of the sleeve 56 is in threaded connection with the left nut 54, the other end of the sleeve 56 is in threaded connection with the right nut 55, so that the balls 53 are kept between the first ball track 56 and the second ball track 57, the balls 53 do not fall out of the first ball track 56 and the second ball track 57, the sleeve 56 is sleeved with the mandrel 1, the circular slope stopper 3, the first rotating member 51 and the second rotating member 52 are made of alloy steel, the first rotating member 51 and the second rotating member 52 are each in a discoid shape.

The utility model discloses a theory of operation is: when fixing ceramic valve ball, 4 rotatory drive rotatorys ware 5 of latch segment make circular inclination dog 3 promote towards elastic jacket 2 inboards, make elastic jacket 2 inflation, can not rock, rotate until ceramic valve ball to accomplish ceramic valve ball's fixed. In the screwing process, the resistance of the locking block 4 is increasingly larger, the pressure intensity between the locking block 4 and the first rotating member 51 is increasingly larger, the pressure intensity between the second rotating member 52 and the circular slope stop block 3 is increasingly larger, the first rotating member 51 can rotate relative to the second rotating member 52, at the moment, the locking block 4 continues to rotate, the first rotating member 51 is driven to rotate under the action of friction force, and the friction between the rolling ball 53 and the first rotating member 51 and the friction between the rolling ball 53 and the second rotating member 52 are rolling friction respectively. Compared with the prior art, the tightening force needed by the locking block 4 is less, and the tightening of the locking block 4 is labor-saving.

The ball 53 is a steel ball. The steel balls have high hardness and deformation resistance, so that the rotator can bear larger pressure

the sleeve 56 is a clearance fit with the mandrel 1. Thus, the sleeve can smoothly slide on the mandrel and can rotate.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims (4)

1. The utility model provides a fixing device for processing of ceramic valve ball, includes dabber, elastic jacket, circular inclination dog and latch segment, elastic jacket's centre bore both ends all are equipped with the inflation inclination, circular inclination dog sets up respectively at this elastic jacket's both ends, circular inclination dog with inflation inclination looks adaptation, its characterized in that: the locking device comprises a locking block, a circular inclination stop block, a first rotating piece, a second rotating piece, at least 4 balls, a left nut, a right nut and a sleeve, wherein the locking block is arranged on the locking block, the circular inclination stop block is arranged on the locking block, the rotating piece comprises a first rotating piece, the second rotating piece, at least 4 balls, a left nut, a right nut and a sleeve, a first ball track is arranged on the end surface of the first rotating piece, a second ball track is arranged on the end surface of the second rotating piece, the balls are respectively abutted against the first ball track and the second ball track, so that the first rotating piece rotates relative to the second rotating piece, a first countersunk head through hole is arranged on the end surface of the first rotating piece, the left nut is arranged in the first countersunk head through hole, a second countersunk head through hole is arranged on the end surface of the second rotating piece, the right nut is arranged in the second countersunk head through hole, one end, thereby maintaining the balls between the first and second ball tracks, the sleeve being sleeved with the mandrel.

2. The fixing device for the processing of the ceramic valve ball according to claim 1, wherein: the ball is a steel ball.

3. The fixing device for the processing of the ceramic valve ball according to claim 1, wherein: the sleeve is in clearance fit with the mandrel.

4. The fixing device for the processing of the ceramic valve ball according to claim 1, wherein: the first rotating piece and the second rotating piece are both in a round cake shape.