The invention discloses a marble laying tool and a marble laying and pasting method, and aims at providing the marble laying tool and the marble laying and pasting method with the advantages that a dovetail groove can be ground in a marble plate; marble cannot easily fall off; and the construction is easy. The marble laying tool comprises a grinding head and a grinding handle, wherein the grinding head is a cone body with the smaller upper part and the large lower part; the upper end of the cone body is provided with a grinding rod; the grinding handle is arranged at the upper end of the grinding rod; a positioning inner sleeve is arranged on the outer circle of the grinding handle; a locking screw is arranged on the outer circle of the positioning inner sleeve; a bearing is arranged at the lower end of the positioning inner sleeve; and a splayed positioning foot is arranged on the outer circle of the bearing. After the grinding handle is arranged on a power tool, the grinding head is controlled to enter the marble for a certain depth and then to transversely move for grinding the dovetail groove by the positioning foot; when cement mortar is used for paving, the cement mortar can be embedded into the dovetail groove, so that the marble cannot fall off from the laid wall surface and cannot easily become loose from the ground; and the construction is easy.

Marble laying tool and marble laying and pasting method

Disclosed is a method for machining concentric holes of a variable shell of an axial plunger pump. The variable shell is fixed to a tool clamp, and a diamond honing and reaming stick is connected to a main shaft of a numerical control boring and reaming machine through a conical face and a floating loose joint and is used for machining the concentric holes, with the different diameters, of the variable shell; the diamond honing and reaming stick can be in three specifications including a coarse concentric honing and reaming stick, a semi-fine concentric honing and reaming stick and a fine concentric honing and reaming stick; and the coarse concentric honing and reaming stick, the semi-fine concentric honing and reaming stick and the fine concentric honing and reaming stick are used for three different machining working procedures including coarse machining, semi-fine machining and fine machining of the concentric holes of the variable shell respectively, and finally the overall machining process of the concentric holes of the variable shell is completed. The requirement for the cylindricity tolerance value of 0.005 mm between the concentric holes D and d and the axiality tolerance value of 0.01 mm between the concentric holes D and the d are met. The precision of the centric holes, machined according to the method, of the variable shell meets the design requirement and is not affected by manual work; and meanwhile, the labor intensity of workers is relieved, the production efficiency is improved, and the manufacturing cost is reduced.

Method for machining concentric holes of variable shell of axial plunger pump and clamp

The invention discloses a simple honing head capable of adapting to honing and machining of small holes. The simple honing head comprises a honing rod, wherein a conical handle body is arranged at the right end of the honing rod; a central screw hole is formed in an end surface of the right end of the conical handle body; a radial through hole is formed in the right end of the honing rod; a pipe body is arranged in the radial through hole in a penetrating manner; a fastening screw for fixing a pipe body in the radial through hole is arranged on an end surface of the left end of the honing rod; a spring is arranged in an inner hole of the pipe body; oil stones which press against the spring and can move in an axial direction of the inner hole of the pipe body are respectively arranged at two ends of the spring. The simple honing head has a simple and practical structure, is easy to manufacture, can adapt to the honing and machining of the small holes within a certain range, and is particularly suitable for being used in enterprises having no honing machine tools.

Simple honing head capable of adapting to honing and machining of small holes

A device used for numerical-control machining of a deep-cavity part comprises a spindle head, a spindle head groove, a tool holder fixing bolt, a tool holder, a tool holder groove, a tool fixing bolt and a tool. The spindle head is cylindrical. The spindle head groove is formed in the lower portion of the spindle head. The tool holder is cylindrical. The tool holder groove is formed in the lower portion of the tool holder. The tool holder and the spindle head groove are connected in a matched mode, and the tool holder is fixedly connected with the spindle head through the tool holder fixing bolt. The tool and the tool holder groove are connected in a matched mode, and the tool is fixedly connected with the tool holder through the tool fixing bolt. By the adoption of the mode that the spindle head is combined with the tool holder, machining numerical-control programming and simulation of the deep-cavity part are quite effective. The angles and parameters can be well adjusted by a programmer, the length of the tool is decreased to the maximum extent while the spindle head is prevented from colliding with the part, and the rigidity of the tool is improved. The part quality and machining safety are guaranteed, the production efficiency is improved, and the economic benefits are increased.

Device used for numerical-control machining of deep-cavity part

The invention provides a grinding device and method for the outer shell ball track of a linear motion bearing The grinding device comprises a grinding rod, a pin shaft, an oilstone chuck, an oilstone and a spacer, wherein the grinding rod is in articulated connection the oilstone chuck through the pin shaft; the oilstone is fixed in the oilstone chuck through a screw; the spacer is mounted on the screw in a sleeving manner, and the oilstone is close to one side of the head part of the screw The pressure of the oilstone can be manually controlled according to the size of amount of feed, the super-precise grinding for the outer shell ball track of the bearing is completed during one-time clamping, and the precise of the ball track can be reliably ensured

Grinding device and method for outer shell ball track of linear motion bearing

A device for honing a deep hole internal conical surface relates to petroleum machinery. The device comprises an adjustable diameter honing head (2) with a honing strip (1) and a honing rod (3) which is connected with the honing head (2), wherein the front end face of the honing strip (1) is an inclined plane which can be machined to form the internal conical surface in the inner cavity of a workpiece, and a universal device is connected between the honing head (2) and the honing rod (3). The device is simple in structure, is convenient to operate, is widely applied, and can be used for basically solving the problem of the machining accuracy of the deep hole internal conical surface.

Han Jing

Papers

Device for honing deep hole internal conical surface