CN108000327A - A kind of valve body core radius variable grinding attachment - Google Patents

Abstract

The invention discloses a kind of valve body core radius variable grinding attachment, it is related to ball valve ball core processing equipment field, it includes rotating disk, the dynamical element of the driving rotating disk rotation and several deciles uniformly and sharpening of the slip in the rotating disk, the rotating disk includes the chassis that be connected with the dynamical element and the lid for the installation of whetting a knife, and the chassis and lid are fixedly connected and cooperatively form cavity and cavity inside is equipped with while adjusts all adjusting mechanisms whetted a knife distance between the rotating disk center of circle.The present invention has the advantages of practicality is high, applied widely, simple in structure, easy to use.

Description

A valve body spherical core variable radius grinding device

technical field

The invention relates to the field of ball valve ball core processing equipment, in particular to a valve body ball core variable radius grinding device.

Background technique

The processing of spherical valve body involves the processing of some key parts, including upper valve body, lower valve body, ball core, valve seat, etc. The processing of these parts often requires high processing accuracy, otherwise it will affect the Subsequent assembly processes may even affect the assembly quality of the valve body, resulting in leakage. The precision requirements of the ball core are particularly high in the manufacturing process, and when the CNC machine tool is processing the ball core, some processing surfaces are often not processed or the processing accuracy is not very ideal, which will affect the matching accuracy of the subsequent valve core and valve seat. On the other hand, some failures will occur after the ball valve is used for a period of time, sometimes because the valve body is not used for a long time, and a certain compound is formed on the surface of the ball core, which affects the cooperation between the ball core and the valve seat.

Contents of the invention

In order to overcome the disadvantages of the background technology, the present invention provides a valve body ball core variable radius grinding device with high practicability, wide application range, simple structure and convenient use.

The technical solution adopted in the present invention: a valve body spherical core variable radius grinding device, which includes a rotating disk, a power element that drives the rotating disk to rotate itself, and several equally distributed and slidably installed on the The knife sharpener on the rotating disk, the rotating disk includes a chassis connected with the power element and a cover for the knife sharpener to be installed, the chassis and the cover are fixedly connected and cooperate to form a cavity, and the inside of the cavity is provided with An adjustment mechanism that simultaneously adjusts the distance between all the sharpening knives and the center of the rotating disc.

The cover is provided with elongated limiting grooves for the sharpener to perform centripetal linear motion or centrifugal linear motion, and the limiting grooves are evenly distributed on the cover.

The adjustment mechanism includes a grinding disc coaxially connected with the chassis and capable of self-rotating movement, and a rotating member that drives the grinding disc to rotate. The rotating member is rotatably installed on the inner wall of the chassis, and the upper surface of the grinding disc is provided There are sliding grooves corresponding in number to the grinder, and the grinder has a first state of being close to the center of the grinder when the grinder rotates in one direction and away from the grinder when the grinder rotates in the opposite direction The second state of the center of the circle.

The path of the sliding groove is a vortex line that gradually moves away from the center of the grinding disc, and the sliding groove and the limiting groove intersect each other to limit the movement of the grinder.

The rotating part adopts a bevel gear, and the lower surface of the grinding disc adopts a tooth surface meshed with the bevel gear.

The side wall of the chassis is provided with a through hole for the installation of the bevel gear, and the end of the bevel gear is provided with an adjustment hole for rotating the bevel gear.

The bottom of the sharpening knife is provided with a bar-shaped block adapted to the limiting groove, and the bottom surface of the bar-shaped block is provided with a sliding block that is slidably matched with the sliding groove.

The sliding block forms a snap fit with the limiting groove.

The processing surface of the grinding knife is an arc-shaped surface adapted to the product to be ground.

The cover and the chassis are detachably connected.

The beneficial effects of the present invention are: the product on the surface can be easily removed by the present invention, the roundness of the surface of the ball core can be improved, the surface smoothness of the ball core can be improved, and the assembly accuracy of the valve body and the ball core can be guaranteed; in addition, By adjusting the distance between all sharpening knives and the center of the rotating disk through the adjusting mechanism, the present invention can be applied to ball cores of more sizes, and has the advantages of high practicability, wide application range, simple structure and convenient use.

Description of drawings

Fig. 1 is a schematic structural view of a valve body spherical core variable radius grinding device according to an embodiment of the present invention.

Fig. 2 is a disassembled structure diagram of a valve body spherical core variable radius grinding device according to an embodiment of the present invention.

Fig. 3 is a schematic diagram of the structure of the grinding disc.

Fig. 4 is a schematic diagram of the bottom surface structure of the grinding disc.

Fig. 5 is a structural schematic diagram of the chassis and rotating parts.

Fig. 6 is a schematic structural view of the cover.

Figure 7 is a schematic diagram of the sharpening structure.

Detailed ways

Embodiments of the present invention will be further described below in conjunction with accompanying drawings:

As shown in the figure, a valve body ball core variable radius grinding device includes a rotating disk 1, a power element 2 that drives the rotating disk 1 to rotate, and several equally distributed and slidably installed on the The sharpener 3 on the rotating disk 1, the rotating disk 1 includes a chassis 4 connected to the power element 2 and a cover 5 for the sharpening 3 to be installed, the chassis 4 and the cover 5 are fixedly connected and matched A cavity is formed and an adjustment mechanism is provided inside the cavity to simultaneously adjust the distance between all the sharpeners 3 and the center of the rotating disk 1. Through the present invention, the product on the surface can be easily removed, and the surface of the ball core can be improved. The roundness can improve the surface smoothness of the ball core, so that the assembly accuracy of the valve body and the ball core can be guaranteed; in addition, the distance between all sharpening knives and the center of the rotating disc can be adjusted by the adjustment mechanism, so that the present invention can be applied to ball cores of more sizes , has the advantages of high practicability, simple structure and convenient use.

The cover 5 is provided with elongated limiting grooves 51 for the sharpener 3 to perform centripetal linear motion or centrifugal linear motion, and the limiting grooves 51 are evenly distributed on the cover. 5, the adjustment mechanism includes a grinding disc 6 coaxially connected with the chassis 4 and capable of self-rotating movement, and a rotating member 7 that drives the grinding disc 6 to rotate, and the rotating member 7 is rotatably installed on the chassis 4 On the inner side wall, the upper surface of the grinding disc 6 is provided with sliding grooves 61 corresponding in number to the grinding knife 3. The grinding knife 3 has a groove close to the center of the grinding disc 6 when the grinding disc 6 rotates in one direction. The first state and the second state away from the center of the millstone 6 when the millstone 6 rotates in the opposite direction, the path of the sliding groove 61 is a vortex line that gradually moves away from the center of the millstone 6, and the slip groove 61 Intersect with the limit groove 51 to limit the movement of the sharpener 3, the rotating member 7 adopts a bevel gear, the lower surface of the grinding disc 6 adopts a tooth surface meshed with the bevel gear, and the side wall of the chassis 4 There is a through hole 41 for the installation of the bevel gear. The end of the bevel gear is provided with an adjustment hole 8 that can be used to rotate the bevel gear. The bevel gear is meshed with the gear surface of the grinding disc, and a tool is inserted into the adjustment hole to rotate the bevel gear. The gear can drive the grinding disc to rotate. Due to the change of the radius of the vortex, the radius of the grinding knife installed on the plane of the vortex can be changed, so that the grinding of spherical surfaces with different radii can be completed.

Wherein, the adjusting holes in this embodiment can be hexagonal holes, square holes and the like.

The bottom of the sharpener 3 is provided with a strip block 31 adapted to the limiting groove 51, and the bottom surface of the strip block 31 is provided with a sliding block 32 that is slidingly matched with the sliding groove 61, so that The sliding block 32 and the limiting groove 51 form a snap fit. When the power element drives the rotating disc to rotate, the grinding disc in the rotating disc will also rotate and there is no relative movement between the two. Due to the sliding groove and the limiting With the cross setting of the slots, the sharpening knife that has been adjusted in position will not be driven by centrifugal force to do centrifugal motion.

The processing surface of the grinder 3 is an arc-shaped surface adapted to the product to be ground.

In this embodiment, the cover body 5 and the chassis 4 are detachably connected to facilitate replacement of the sharpener.

The power element in this embodiment can choose a single-phase asynchronous motor, and the rotation of the motor drives the rotation of the rotary disc to realize the function of grinding.

The working principle of the present invention: before turning on the power, adjust the grinding radius according to the radius of the spherical surface, rotate the bevel gear according to the curvature of the spherical surface, thereby changing the grinding radius, and make the processing surface of the grinding knife tangent to the spherical surface, Then turn on the power, hold the handle with your hand, and move back and forth against the spherical surface to process the surface of the ball core.

The embodiment should not be regarded as limiting the invention, but any improvement based on the spirit of the present invention should be within the protection scope of the present invention.

Claims (10)

1. A valve body spherical core variable radius grinding device, characterized in that it includes a rotating disk (1), a power element (2) that drives the rotating disk (1) to rotate, and several equally distributed and The sharpening knife (3) can be slidably installed on the rotating disk (1), and the rotating disk (1) includes a chassis (4) connected with the power element (2) and a knife grinding (3) ) installed cover (5), the chassis (4) and the cover (5) are fixedly connected and cooperate to form a cavity, and inside the cavity is equipped with a simultaneous adjustment of all the sharpeners (3) and the rotating disc ( 1) The adjustment mechanism for the distance between the centers of circles. 2. The valve body spherical core variable radius grinding device according to claim 1, characterized in that: the cover (5) is provided with a centripetal linear motion or a centrifugal linear motion for the grinder (3) Moving and elongated limiting slots (51), the limiting slots (51) are evenly distributed on the cover (5). 3. The valve body ball core variable radius grinding device according to claim 2, characterized in that: the adjustment mechanism includes a grinding disc (6) coaxially connected with the chassis (4) and capable of rotation movement; The rotating member (7) that drives the grinding disc (6) to rotate, the rotating member (7) is rotatably installed on the inner wall of the chassis (4), and the upper surface of the grinding disc (6) is provided with the The knives (3) are slidably fitted with sliding grooves (61) corresponding in number. The knives (3) have a first state close to the center of the grinding disc (6) when the grinding disc (6) rotates in one direction and The second state in which the grinding disc (6) is away from the center of the grinding disc (6) when it rotates in the reverse direction. 4. The valve body spherical core variable radius grinding device according to claim 3, characterized in that: the path of the sliding groove (61) is a vortex line gradually away from the center of the grinding disc (6), so The sliding groove (61) and the limiting groove (51) intersect each other to limit the movement of the sharpener (3). 5. The valve body spherical core variable radius grinding device according to claim 3, characterized in that: the rotating member (7) adopts a bevel gear, and the lower surface of the grinding disc (6) adopts a gear meshing with the bevel gear matching tooth surfaces. 6. The valve body spherical core variable radius grinding device according to claim 5, characterized in that: the side wall of the chassis (4) is provided with a through hole (41) for the installation of the bevel gear, the The end of the bevel gear is provided with an adjustment hole (8) that can be used to turn the bevel gear. 7. The valve body ball core variable radius grinding device according to claim 2, characterized in that: the bottom of the grinder (3) is provided with a bar-shaped block ( 31), the bottom surface of the strip block (31) is provided with a sliding block (32) slidingly matched with the sliding groove (61). 8 . The valve body ball core variable radius grinding device according to claim 7 , characterized in that: the sliding block ( 32 ) forms a snap fit with the limiting groove ( 51 ). 9. The valve body spherical core variable radius grinding device according to any one of claims 1-8, characterized in that: the processing surface of the grinding knife (3) is in an arc shape adapted to the product to be ground noodle. 10. The valve body spherical core variable radius grinding device according to any one of claims 1-8, characterized in that the cover (5) and the chassis (4) are detachably connected.