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CN-122007910-A - Combined machining equipment for precise metal parts

CN122007910ACN 122007910 ACN122007910 ACN 122007910ACN-122007910-A

Abstract

The invention relates to the technical field of intelligent manufacturing equipment industry, in particular to combined machining equipment for precise metal parts, which comprises a machining main body, a grinding assembly, a turning assembly and a spraying assembly, wherein a main shaft is arranged on the machining main body and is used for installing a ball, the grinding assemblies are arranged on the machining main body, each grinding assembly comprises a grinding shaft and a grinding cylinder, the grinding cylinders are coaxially and detachably sleeved on the corresponding grinding shafts, the grinding shafts can rotate around the axes of the grinding shafts and drive the grinding cylinders to synchronously rotate, the grinding cylinders are provided with openings facing the ball, the inner walls of the openings are provided with grinding surfaces, the grinding surfaces are matched with the outer surfaces of the ball, the spraying assembly comprises a first spraying pipe, the first spraying pipe is used for spraying grinding liquid to the matched position of the outer surfaces of the ball and the grinding surfaces, the side walls of the grinding cylinders are provided with openings, the openings are used for discharging the grinding liquid and grinding scraps inside the grinding cylinders outwards, and the grinding quality of the ball can be improved.

Inventors

  • ZHANG MAN
  • LIU ZICHENG
  • LIU DONGJIE

Assignees

  • 惠州市富金泽智能科技有限公司

Dates

Publication Date
20260512
Application Date
20260324

Claims (10)

  1. 1. A combination processing equipment of accurate metal parts for processing the spheroid of ball valve, its characterized in that includes: the processing main body is provided with a main shaft extending along the horizontal direction, and the main shaft is used for installing the ball body and driving the ball body to rotate around the axis of the main shaft; The grinding assembly is arranged on the processing main body, the two grinding assemblies are respectively positioned at the upper side and the lower side of the main shaft, each grinding assembly comprises a grinding shaft and a grinding cylinder, the axis of each grinding shaft extends along the upper and lower directions, the grinding cylinders are coaxially and detachably sleeved on the corresponding grinding shafts, the grinding shafts can rotate around the axes of the grinding shafts and drive the grinding cylinders to synchronously rotate, the grinding cylinders are provided with openings facing the spheres, the inner walls of the openings are provided with grinding surfaces, and the grinding surfaces are matched with the outer surfaces of the spheres; the turning assembly is arranged on the processing main body in a sliding manner along the horizontal direction and is used for turning the sphere; The spraying assembly comprises a first spraying pipe arranged on the processing main body, and the first spraying pipe is used for spraying grinding fluid to the matching position of the outer surface of the sphere and the grinding surface; The side wall of the grinding cylinder is provided with a notch, and the notch is used for discharging grinding fluid and grinding scraps inside the grinding cylinder outwards.
  2. 2. The combination machining device for precise metal parts according to claim 1, wherein the outer concentric sleeve of the grinding cylinder is provided with a first clamp and a second clamp, the first clamp is used for detachably locking the grinding cylinder on the grinding shaft, the second clamp is arranged close to the ball body relative to the first clamp, the second clamp is located at a position of the grinding cylinder corresponding to the opening, and the diameter of the grinding cylinder can be reduced by tightening the second clamp, so that abrasion of the grinding surface is compensated.
  3. 3. The combined machining apparatus for precision metal parts according to claim 2, wherein the notch is wedge-shaped in the axial direction of the grinding cylinder, and the horizontal dimension of the notch gradually increases from the side away from the ball to the side closer to the ball.
  4. 4. The combined machining device for the precise metal parts according to claim 2, wherein a deflector rod is arranged on one side of the grinding shaft, which faces the sphere, and extends in the up-down direction and is positioned on the radial outer side of the grinding shaft, and the deflector rod is positioned in the corresponding notch, and the centrifugal force exerted on the deflector rod and the centrifugal force exerted on the grinding cylinder are balanced in the rotation process of the grinding shaft.
  5. 5. The combined machining apparatus for precision metal parts according to claim 4, wherein an abrasive area is provided on the outer peripheral surface of the grinding cylinder above the main shaft, the abrasive area being disposed radially opposite to the notch for grinding the outer edge of the through hole of the sphere.
  6. 6. The combined machining device for the precise metal parts according to claim 5, wherein the grinding assembly comprises a grinding box, the grinding shaft is rotatably arranged on the grinding box, a first driving motor is arranged in the grinding box and used for driving the grinding shaft to rotate around the axis of the grinding shaft; The processing main body is provided with two sets of driving mechanisms, each driving mechanism corresponds to the grinding box one by one, each driving mechanism comprises a first hydraulic cylinder, a fixed frame and a second hydraulic cylinder, the first hydraulic cylinder is fixedly arranged on the processing main body, the fixed frame is fixedly arranged at the output end of the first hydraulic cylinder, the second hydraulic cylinder is fixedly arranged on the fixed frame, the grinding box is fixedly arranged at the output end of the second hydraulic cylinder, the first hydraulic cylinder can stretch out and draw back along the horizontal direction to drive the fixed frame to move along the horizontal direction, and the second hydraulic cylinder can stretch out and draw back along the vertical direction to drive the grinding box to move along the vertical direction.
  7. 7. The combined machining device for the precise metal parts according to claim 6, wherein the outer coaxial sleeve of the main shaft is provided with a tensioning shaft, one end of the tensioning shaft, facing the sphere, is a mounting end, the mounting end is of a columnar split structure, the inner part of the mounting end is coaxially provided with a conical groove, the outer part of the tensioning shaft is coaxially sleeved with a driving rod, one end of the driving rod, facing the sphere, is provided with a conical block, the conical block is slidably arranged in the conical groove, and the conical block can slide in the conical groove by driving the driving rod to move on the tensioning shaft in a direction close to the sphere, so that the columnar split structure expands to tighten the sphere.
  8. 8. The combined machining device for the precise metal parts, according to claim 7, is characterized in that a first annular baffle is coaxially arranged at one end of the driving rod, which is far away from the conical block, a second annular baffle is coaxially and fixedly arranged on the main shaft, the second annular baffle is positioned at one side of the first annular baffle, which is far away from the sphere, a pressure spring is sleeved outside the tensioning shaft and positioned between the first annular baffle and the second annular baffle, in an initial state, the pressure spring is in a compression state, and the pressure spring has a tendency of driving the first annular baffle to be far away from the second annular baffle, so that the driving rod is driven to move towards a direction close to the sphere.
  9. 9. The combined machining device for the precise metal parts according to claim 8, wherein a conical surface is arranged on one side, close to the sphere, of the first annular baffle table, and the end portion of the deflector rod is in sliding fit with the conical surface, so that the driving rod can move on the tensioning shaft in a direction away from the sphere, and the conical block can slide in the conical groove reversely, and the columnar split structure can be contracted to loosen the sphere.
  10. 10. The combination machining apparatus for precision metal parts according to claim 1, wherein the spray assembly further comprises a second spray pipe provided on the machining body, the second spray pipe and the first spray pipe are respectively located at both sides of the main shaft in the horizontal direction, and the second spray pipe is used for spraying the cutting fluid to the cooperation of the outer surface of the ball body and the grinding surface.

Description

Combined machining equipment for precise metal parts Technical Field The invention relates to the technical field of intelligent manufacturing equipment industry, in particular to combined machining equipment for precise metal parts. Background During the machining process of a precision metal part (such as a ball valve ball body), a combined machining device is generally required, and two working procedures of turning and grinding are sequentially carried out through the combined machining device. The turning process is to process the blank to a shape similar to a sphere and to leave a uniform allowance for the subsequent grinding process, and the grinding process is to eliminate the tool mark and correct the microscopic deformation by micro cutting on the basis of the turning process so as to lead the surface of the workpiece to achieve the mirror effect. The grinding of the existing combined processing equipment is generally carried out by adopting grinding disc to match with flowing grinding liquid. For example, patent document CN118752350B discloses a polishing device for the surface of a ball valve body of a CO 2 ball valve, which adopts a circular polishing disc, the polishing end can always contact with the surface of the ball valve body (i.e. a ball) during rotary polishing, and the polishing disc is driven to swing by a swinging component, so that the polishing disc can polish the surface of the ball valve body in rotation. However, the inside of the polishing disc is of a closed structure, so that the grinding liquid and the abrasive dust are easy to remain in the inside of the polishing disc, the grinding liquid cannot continuously and effectively act on the surface of the ball valve body, and the abrasive dust can scratch the spherical surface, so that the grinding quality of the ball valve is affected. Disclosure of Invention Accordingly, it is necessary to provide a combined machining apparatus for precision metal parts, which aims at the technical problem that the grinding quality is affected by the grinding fluid and the grinding dust easily remained in the grinding disc of the conventional combined machining apparatus. The above purpose is achieved by the following technical scheme: A combined machining device for machining a ball body of a ball valve comprises a machining main body, grinding assemblies, turning assemblies and spraying assemblies, wherein a main shaft extending in the horizontal direction is arranged on the machining main body, the main shaft is used for installing the ball body and driving the ball body to rotate around the axis of the main shaft, the grinding assemblies are arranged on the machining main body and are respectively arranged on the upper side and the lower side of the main shaft, each grinding assembly comprises a grinding shaft and a grinding cylinder, the axis of each grinding shaft extends in the vertical direction, the grinding cylinders are coaxially and detachably sleeved on the corresponding grinding shafts, the grinding shafts can rotate around the axes of the grinding shafts and drive the grinding cylinders to synchronously rotate, the grinding cylinders are provided with openings facing the ball body, the inner walls of the openings are provided with grinding surfaces, the grinding surfaces are matched with the outer surfaces of the ball body, the turning assemblies are arranged on the machining main body in a sliding mode in the horizontal direction and are used for turning the ball body, the first spraying assemblies are arranged on the upper side and lower side of the main body and are used for spraying the grinding surfaces of the ball body, the grinding cylinders are arranged on the matching positions of the outer surfaces of the ball body, the grinding cylinders are provided with gaps, and the inner side walls of the grinding cylinders are used for discharging grinding debris to the grinding cylinders. Further, the outside coaxial sleeve of grinding vessel is equipped with first clamp and second clamp, first clamp is used for locking grinding vessel detachably on the grinding shaft, the second clamp is close to the spheroid setting for first clamp, and the second clamp is located the grinding vessel and corresponds the position of opening, can reduce the diameter of grinding vessel through tightening up the second clamp to compensate the wearing and tearing of abrasive surface. Further, the notch is wedge-shaped along the axial direction of the grinding cylinder, and the horizontal size of the notch gradually increases from one side far away from the ball body to one side close to the ball body. Further, a deflector rod is arranged on one side of the grinding shaft, facing the sphere, and extends along the up-down direction and is positioned at the radial outer side of the grinding shaft, and the deflector rod is positioned in the corresponding notch, and in the rotating process of the grinding shaft, the centrifugal force born by the deflec