52results about How to "Achieve polishing" patented technology

The invention discloses a polishing head for the inner surface of an elongated bend pipe, which belongs to the technical field of ultra-precision machining. Uniform polishing is difficultly implemented in the prior art; and the prior art is only suitable for short pipes with a small length-diameter ratio. The polishing head has a traction part and a steering part, wherein the traction part has a minor spherical crown while the steering part has a major spherical crown, the two are jointed to form a ball cage, and the inner part of the ball cage is a ball head chamber; a front rotary pull ring is arranged on the top of the spherical crown of the traction part; a bending hole is reserved on the top of the spherical crown of the steering part; the ball head is a sphere positioned in the ball head chamber and connected with one end of a rotating shaft; the other end of the rotating shaft extends outside the bending hole and is connected with a rear rotary pull ring; the inner surface of an envelope ball is a minor spherical surface, and the curvature radius of the inner surface is equal to that of the spherical surface of the outer surface of the ball cage; a plurality of involute drainage channels are distributed in a radial manner in an impeller, one end port of each drainage channel is positioned on an axial small end of the impeller, while the other end port is positioned on a radial edge of the impeller; the envelope ball is connected with the impeller, axial holes sharing the same axis line and having the same aperture are reserved in the centers of the envelope ball and the impeller, and the axial holes are matched with the rotating shaft; and the inner surface of the envelope ball is in clearance fit with the outer surface of the ball cage.

The invention belongs to the technical field of aluminum alloy machining equipment, and discloses an aluminum alloy metal part grinding and polishing device which comprises a grinding table and an aluminum alloy plate. Two symmetrically-distributed fixing assemblies are arranged at the top of the grinding table. Each fixing assembly comprises a first hydraulic rod, wherein the mounting end of the first hydraulic rod is arranged at the top of the grinding table, a fixing plate is arranged at the output end of the first hydraulic rod, a first electric telescopic rod is arranged on one side of the fixing plate, a first moving plate is arranged at the output end of the first electric telescopic rod, second electric telescopic rods are arranged on the end face of the periphery of the first moving plate, second moving plates are arranged at the other ends of the second electric telescopic rods, first air guide pipes are arranged at one ends of the second moving plates, and suckers are arranged at the other ends of the first air guide pipes. According to the aluminum alloy plate polishing device, through the arrangement of a polishing assembly, the fixing assemblies and a containing plate, the two side faces of an aluminum alloy plate can be ground at a time, the aluminum alloy plate can be ground and pre-cleaned, and the grinding precision is controlled.

The invention provides a cantilever wheel belt polishing device with controlled pressure and a polishing method, belongs to the technical field of ultra-precision processing, and solves the problem that the polishing method in the prior art introduces a certain medium-high frequency error during polishing, so improving the surface precision is difficult, and optical components with large aspect ratio and complex surface cannot be polished effectively, specifically the inner surfaces; meanwhile, the controllable contact pressure polishing device adopts a single contact control method, which cannot effectively polish workpiece with great difference of the target surface. The polishing device provided by the invention comprises a bottom plate, a wheel bar assembly, a drive assembly, a dressing assembly, a polishing belt, a tensioning assembly and a guide idler, is mainly used for ultra-precision machining of optically complex surfaces of hard and brittle materials.

The invention mainly relates to the field of optical fiber preform rod inner hole and external cylindrical surface polishing, in particular to an optical fiber preform rod polishing solution circulating system, which comprises an upper water tank, a lower water tank, a first guiding pipe, a second guiding pipe, a third guiding pipe, a bending pipe, a first solenoid valve, a second solenoid valve, a left support seat, a right support seat, a water pump and a stirrer. The optical fiber preform rod polishing solution circulating system provided by the invention is simple in structure, high in integration level, and convenient to operate and install, a polishing solution used by the circulating system can be repeatedly used, and an excircle and an inner hole of an optical fiber preform rod immersed in a polishing agent loop can be polished.

The invention discloses a surface polishing and grinding process and equipment used for a long rod part with a specially-shaped section. The equipment comprises a belt grinder, a travelling mechanismand a clamping mechanism with a turnover function, wherein the travelling mechanism comprises a slide rail and a slide base mounted on the slide rail; the slide base is driven by a linear motion drivedevice to move back and forth along the slide rail; the belt grinder is fixedly mounted on the slide base; a belt grinder contact wheel presses an abrasive belt to a to-be-polished and to-be-grindedsurface or edge of a workpiece for polishing and grinding the to-be-polished and to-be-grinded surface or edge of the workpiece; a supporting mechanism is arranged between a drive rotary mechanism anda driven rotary mechanism; the workpiece is firstly placed onto the clamping mechanism, and the travelling mechanism drives the belt grinder to move back and forth for polishing and grinding the workpiece; after one surface is polished and grinded, turnover can be performed through a turnover mechanism; and after polishing and grinding are completed, the clamping mechanism is loosened and the supporting mechanism is withdrawn, so that the workpiece can be taken out. The surface polishing and grinding equipment is consistent in polishing and grinding effect of each part of the workpiece, is good in polishing and grinding quality of the workpiece, is stable in performance, and can be suitable for various long rod parts with specially-shaped sections.

The invention belongs to the technical field of processes for conducting grinding or polishing on workpieces and specifically discloses a bearing polishing process. A polishing device is involved in the process and comprises an inner circle polishing part, an abradant circulating part and an outer circle polishing part, the outer circle polishing part is internally provided with a waste material separation mechanism, and the abradant circulating part is arranged on the outer circle polishing part. Through adoption of the structure above, the inner circle and outer circle of a bearing ring arepolished as materials are ground, and the problem that polishing of inner circles and outer circles of bearings in the prior art requires different grinding machines is correspondingly solved.

A cutter five-axis profiling polishing machine provided by the invention has five-axis linkage of the X axis, the Y axis, the Z axis, the A axis and the C axis, and automatic abrasive polishing of a cutter is achieved. Compared with a traditional control system with fixed parameters, a polishing feedback automatic control system for the polishing machine of the invention has higher polishing precision, meanwhile, excessive parameters do not need to be debugged and replaced when different types of cutters are replaced for polishing, the operation complexity is greatly reduced, and practicability is achieved. By arranging a profiling plate, the cutter can be quickly positioned and fastened, and the polishing quality is improved; meanwhile, the profiling plate can be replaced at any time according to the shape and the type of the cutter, and the use flexibility of the polishing machine is improved; and a plurality of sets of abrasive belt guide wheels and a plurality of sets of profilingclamps are arranged to work cooperatively, multiple sets of workpieces can be machined at the same time, and the polishing efficiency is improved.

The invention discloses an automatic polishing lathe capable of adjusting the speed of a working table, capable of achieving batch production and high in safety in the technical field of workpiece machining. A conveying assembly is arranged on the front side of the top face of a machining table. The conveying assembly comprises mechanical hands which are arranged on the front side and the rear side of the machining table and electronically controlled by equipment. Linear feeding and conveying mechanisms and linear discharging and conveying mechanisms are arranged on the left sides and the right sides of the mechanical hands at the front end and at the rear end. A protecting cover provided with a feeding and discharging opening in the side wall is arranged on the top face of the working table. Polishing assemblies are symmetrically arranged in an inner cavity of the protecting cover. A conveying assembly is arranged between the polishing assemblies. The conveying assembly is provided with a workpiece limiting assembly. A locking assembly is arranged at the front end of the protecting cover. According to the automatic polishing lathe, the speed of the working table can be adjusted properly according to the difference between machined workpiece materials, thus the better machining quality is achieved, meanwhile, the polishing lathe can adapt to batch production, and the automaticpolishing lathe is high in machining efficiency and high in safety.

The invention provides high-precision impeller polishing equipment which is composed of an auxiliary part, a spiral mechanism part, a conversion mechanism part and a working area part, during working,a bevel gear is driven by a motor to rotate, the spiral mechanism is driven by the bevel gear to rotate, so that a nozzle is driven to move up and down, and on the other hand, a hydraulic cylinder pushes a rack to move left and right. The rack meshes with the gear to drive the conversion mechanism to rotate, so that the position of the nozzle relative to impellers is changed, and multi-angle machining of the impellers, especially dead zones on the back faces of blades, is achieved. The high-precision impeller polishing equipment is convenient to install, easy to operate, safe and reliable inwork and suitable for conducting abrasive flow precise machining on the impellers, the two impellers can be machined at the same time, and the production efficiency is improved.

The invention provides an annular elastic polishing tool and relates to the technical field of precise machining. The annular elastic polishing tool comprises a tool base, an elastic body and a connecting piece, wherein the elastic body is detachably connected with the tool base through the connecting piece and is of an annular structure. According to the annular elastic polishing tool, a machining face is an annular arc face, and the contact area between the annular arc face and a workpiece is an annular belt and is larger compared with a circular contact area between a spherical tool, so that the machining efficiency of workpieces (with planes/spherical surfaces/non-spherical surfaces) is effectively improved; the arc surface radius of the tool and the overall size of the tool are designed flexibly, and the tool can polish curved surface workpieces of different sizes and curvatures; and the elastic body has stable rigidity, and the machining effect is more stable.

The invention discloses a step-by-step type electrochemical polishing device which comprises a power supply, an electric polishing device, a pump, an electrolytic cell, an electrolyte, a suction apparatus, a workpiece and a grinding head, wherein the workpiece is connected with the positive pole of the power supply, the workpiece is internally provided with the electrolyte, one end of the suction apparatus is soaked in the electrolyte of the workpiece, the other end of the suction apparatus is soaked in the electrolyte of the electrolytic cell, the pump is connected with the electrolyte, one end of the electric polishing device is connected with the negative pole of the power supply, the other end of the electric polishing device is connected with the pump, the grinding head is arranged on the electric polishing device, and the grinding head is soaked in the electrolyte of the workpiece. According to the step-by-step type electrochemical polishing device, the power supply, the electric polishing device, the pump and the workpiece are connected into a closed loop by the electrolyte, and the closed loop generates current after the power supply is switched on, so that the polishing machining can be carried out on the workpiece; and the step-by-step type electrochemical polishing device is simple in structure, convenient and fast in operation, high in machining efficiency and favorable for commercial production.

The invention discloses a clamping device. The clamping device includes a workpiece shaft sleeve which includes a vertical cavity provided with a plurality of limiting step surfaces to realize fixation of a workpiece, wherein a convex spherical surface shaft sleeve internally sleeves on the lower part of the workpiece shaft sleeve; a convex spherical body for fitting with the arc surface of a concave spherical surface shaft sleeve is arranged on the lower part of the convex spherical surface shaft sleeve; a base internally sleeves the concave spherical surface shaft sleeve, and coaxially rotates with a mould kernel rotary shaft; and one end of a straight bar mechanism which abuts against the side wall of the concave spherical surface shaft sleeve is arranged on the base, and then rough/tiny adjustment of workpiece axis is realized. The clamping device has the advantages that the precision is high, and degree of freedom is multiple; and multiple standard-aperture specifications of the workpiece can be fixed, position correction can be conducted while clamping is tight, the quality of a product is improved, using is convenient, and prices are low.

The invention discloses a constant-force grinding system integrating detection with grinding. The constant-force grinding system is characterized by comprising a working table, as well as an on-line detecting system, a constant-force grinding system and a controller mounted on the working table; the controller controls operation of the constant-force grinding system according to the information fed back by the on-line detecting system; the constant-force grinding system comprises a servo motor, a synchronous transmission mechanism and a working table return device; the servo motor serves as a constant-torque servo motor; the constant-torque servo motor is converted into the constant feed force of the working table through transmission of the synchronous transmission mechanism; and the working table return device is used for realizing returning of horizontal operation of the working table. Aiming at a machine tool transmission chain deformation phenomenon caused by unstable grinding feed force during ground finish and the constant-displacement forceful feeding mode adopted in numerically controlled grinder design, the design concept of constant-force grinding is adopted, and the grinding feed force is set into a constant quantity from an unstable variable, so that deformation of a machine tool transmission chain is in a stale state.