36results about How to "Avoid repeated positioning errors" patented technology

The invention discloses an in-process evaluation based complex spatial surface error feedback compensating method. The method comprises the following steps of processing a complex surface cutting force module through a ball-end cutter, performing dynamic compensation for a target cutter location point for workpiece pre-processing; performing in-process detection for the pre-processed workpiece to obtain geometrical information of an actual contour; evaluating error for the pre-processed workpiece through a contour degree error evaluation model; when the contour error is greater than tolerance, determining a compensation point position U1 corresponding to each contact point; guiding the compensation point position corresponding to each contact point to three-dimensional CAD (Computer-Aided Design) to obtain a compensating process contour to generate a compensating processing tool track; and performing static compensation and processing for the pre-processed workpiece and finishing the flow. Under the premise of ensuring the processing precision of part surface, the processing precision of the part is detected in process without investing fund to purchase more detection devices, so that the conveying and loading time of workpieces is shortened.

The invention relates to an image measurement tool system, and the system comprises a sheet metal instrument stand, a display, a computer host, a mouse keyboard, a console, a workbench moving mechanism, a lifting mechanism, a working table, a glass block, a clamping tool for clamping a cutter, a bottom light source plate, a lateral image collection device, and a longitudinal image collection device. The mouse keyboard and the display are respectively connected with the computer host, and the computer host is connected with the console. The workbench moving mechanism and the lifting mechanism are disposed on the console and are connected with the console. The working table is disposed above the workbench moving mechanism, and the glass block is disposed on the upper surface of the working table. The clamping tool is disposed at the central part of the glass block. The longitudinal image collection device is fixed on the lifting mechanism, and the lateral image collection device is rotatingly connected along the axis of the longitudinal image collection device through an angle rotating device. The bottom light source plate is disposed on the working table, and is disposed at a side of a longitudinal camera lens.

The invention relates to a numerically controlled lathe-based contour laser online measurement device and a method thereof for rotary type structure characteristic parts, and designs an adjustable and detachable clamp for clamping a sensor. An assembly body is arranged on the tool rest of a lathe in the side edge positioning mode, and the position and orientation calibration of a measuring head is conducted based on a ceramic standard ball. After that, a measuring program is called, and the distance value between the curved-surface discrete point of a part and the measuring head is measured. In combination with the coordinates of the lathe, a one-dimensional distance value is converted into a three-dimensional coordinate value by adopting a compiling algorithm, and then point cloud data are obtained. The point cloud data are analyzed and processed, and a model of the point cloud data is reconstructed. Compared with a theoretical model, an error value and a generation reason thereof are analyzed. Therefore, the high-efficiency precise online measurement of the contour profile of a rotary part is realized. According to the invention, the online measurement and the error analysis for the contours of rotary type structure characteristic parts can be realized. The device and the method are fast in measurement speed and high in precision, thus having a good practical value and an excellent application prospect in the field of non-contact laser online measurement and research.

The invention relates to a special connecting rod drilling machine with eight stations. The machine tool is wholly and protectively arranged on an integrated casting machine tool bed, a rotary worktable is fixed on the integrated casting machine tool bed, a fixture part is fixed on the rotary worktable, an oil rotary distributor is fixed in the center the rotary worktable, a unit head and a base seat of a loading and unloading device are fixed on the integrated casting machine tool bed; a loading device, a two-axis drilling through center oil hole unit head, a two-axis drilling and counterboring center oil hole unit head, a two-axis drilling center oil hole unit head, an unloading device, a four-axis tapping unit head and a blowing detecting device are all fixed on the unit head and the base seat of the loading and unloading device; a two-axis running drilling template is connected with the two-axis drilling through center oil hole unit head via a guide rod, and a four-axis running drilling template is connected with a four-axis drilling connecting thread bottom hole unit head via the guide rod. The special drilling machine has the advantages of completing processes that need to be processed by a single device in a machine tool, avoiding repetitive position error, simplifying the process, meeting the processing requirement of high efficiency and high precision of parts and being suitable for mass production.

The invention discloses numerical-control machining equipment for machining shaft bushings. The numerical-control machining equipment is characterized by comprising a rack, a spindle box, an X-axis feeding mechanism, a Y-axis feeding mechanism, a bushing feeding mechanism, a bushing clamp and a drilling machine; the bushing clamp is arranged on the spindle of the spindle box and is used for clamping the bushings to be machined; the X-axis feeding mechanism comprises a first servo motor, an X-axis guide rail, an X-axis sliding seat and an X-axis threaded rod; the Y-axis feeding mechanism comprises a second servo motor, a Y-axis guide rail, a Y-axis sliding seat and a Y-axis threaded rod; the bushing feeding mechanism comprises a feeding base, a Y-axis guiding rod, a guiding-rod support, a feeding sliding seat, a Y-axis driving cylinder, a feed slot and an X-axis pushing cylinder; the drilling machine is located above the bushing clamp; a turning tool rest and a tap holder are arranged on the Y-axis sliding seat. By the arrangement, a series of automatic machining of stepped outer wall surfaces, inner threaded holes, radial holes and the like on the bushings can be achieved, workingefficiency can be increased by times, high machining precision is achieved, and production cost is greatly reduced.

The invention discloses a galactophore positioning device, which comprises a cover with a stationary shape, and further comprises an imaging device which is detachably and flexibly connected with the cover. The coordinate position of the imaging device is known, and the imaging device is used for scanning galactophore, obtaining anatomic images and calculating corresponding coordinate positions. The galactophore positioning device can greatly increase repetitive positioning accuracy and obtain the exact repetitive positioning error; and proper quantities of tissue equivalent liquid can be also injected into the cover to obtain a continuous medium required by imaging, thereby facilitating the calculation of the radiation exposure dose.

The invention discloses gear ring support machining equipment. The gear ring support machining equipment is characterized in that a rack, a rotation disc, an indexing drive mechanism, five stations, afirst chamfering machine, a second chamfering machine, a third chamfering machine and a fourth chamfering machine are included; the rotation disc is rotationally arranged on the rack, and the five stations are arranged on the rotation disc and evenly distributed in the circumferential direction of the rotation disc; the indexing drive mechanism comprises a speed reduction motor and an indexing device, and the output end of the speed reduction motor is connected with the rotation disc through the indexing device; and the first chamfering machine, the second chamfering machine, the third chamfering machine and the fourth chamfering machine correspond to the positions of the four stations in a one-to-one manner. By means of the gear ring support machining equipment, after a gear ring supportis clamped one time, a first chamfer, a second chamfer, a third chamfer and a fourth chamfer can be machined on the gear ring support, the work efficiency can be improved in a multiplied manner, andthe production cost is reduced.

The present invention discloses a device for measuring thermal errors at a working state of a gear grinding machine. The device comprises a temperature measuring part and a displacement measuring part, the temperature measuring part comprises a temperature sensor arranged on the main heating part of the gear grinding machine, the displacement measuring part comprises an X-direction displacement sensor and a Y-direction displacement sensor which are fixed on a main shaft base of the gear grinding machine through a support, the X-direction displacement sensor and the Y-direction displacement sensor contact with a detection rod, and the detection rod is fixed on a rotary table. Also disclosed is a method for measuring thermal errors by using the device. The method comprises displacement measurement, detection rod circle centre coordinate sequence calculation, system error removal, rotary table axis expression calculation and thermal error modeling. According to the device, the X-direction displacement sensor and the Y-direction displacement sensor are arranged on the gear grinding machine, and temperature sensors are arranged on main heating parts of the gear grinding machine; and by using the device for thermal error measurement, the measuring precision is high and a compensation result is excellent. The device is simple in structure, and the measuring method is easy to learn and easy to popularize.

The invention discloses a machining method for ensuring coaxiality of a spacing ring part, and belongs to the technical field of improving coaxiality precision. The machining method is simple and wide in using range, and can be promoted to solve similar problems, the machining precision is high, repetitive positioning errors of movement of a machine tool main shaft are avoided, the requirement of high precision coaxiality of holes is ensured, the market prospects are broad, and the machining method for ensuring coaxiality of the spacing ring part is worth promoting and using.

Disclosed is a portable cutter wear measurement apparatus. The apparatus is characterized by comprising a miniaturized microscope (1), a mobile phone (2) and an elastic mobile phone clamp (3), wherein an ocular lens end of the miniaturized microscope (1) is installed on one clamping jaw (4) of the elastic mobile phone clamp (3) in a rotating mode, the clamping jaw (4) is provided with a through hole, the through hole is opposite to a shooting lens of the mobile phone (2), another clamping jaw (5) of the elastic mobile phone clamp is clamped on the front surface of the mobile phone (2), and the mobile phone (2) processes a shot picture by use of its own image processing software or sends the shot picture through a data line to a computer (8) preinstalled with the image processing software for analysis so as to obtain cutter wear data. The structure is simple, the application is convenient, real-time rapid detection can be performed without removing a cutter from a knife rest, wear conditions can be obtained timely, and a basis can be provided for replacing or reconditioning the cutter.

The invention discloses a machining tooling for a scroll plate of a scroll compressor, and relates to the field of the scroll compressor. A clamp base is provided with a clamping groove; a pressing plate is arranged in the clamping groove; the pressing plate is connected to a main shaft of an air cylinder; the main shaft of the air cylinder is arranged in the clamp base; two sides of the upper end surface of the clamp base are provided with two symmetrical pins; pin holes are formed in positions corresponding to the pins, of the lower end surface of a the scroll plate step; the scroll plate step is snapped onto the upper end surface of the clamp base; the upper end of the scroll plate step is provided with the scroll plate; the lower end of a sleeve is provided with a sleeve key groove; the sleeve sleeves the clamp base through a position corresponding to the pressing plate, of the sleeve key groove; and the upper end of the sleeve is tightly pressed the scroll plate step. According to the machining tooling, through an air cylinder pull-down locking manner and a scroll plate positioning manner, errors of repeated positioning can be avoided; and the machining tooling can conveniently and rapidly clamps the scroll plates, can clamp a plurality of the scroll plates at the same time, reduce the times of changing tools due to machine tool idling, and improve the machining efficiency, and is high in machining consistency.

The invention relates to a positioning clamping device for mining vertical-ring connector chain rings. The device is characterized by comprising a numerical control rotation disc (1), a rotation tail stock (2) and a connection bridge plate (4), wherein the numerical control rotation disc (1) and the rotation tail stock (2) are arranged on a large base plate (3), two ends of the connection bridge plate (4) are connected with the numerical control rotation disc (1) and the rotation tail stock (2) respectively, and a positioning clamping fixture is fixedly arranged on the connection bridge plate (4). The positioning clamping device for mining vertical-ring connector chain rings has the advantages that machining tasks of matching positions of a vertical-ring connector chain ring can be completed through one-step clamping, multi-process repeated positioning errors are prevented, errors in a machining process are controlled effectively, and the production efficiency is improved; the positioning clamping device is simple and convenient to operate and reduces the operator labor intensity effectively; and the positioning clamping device is high in positioning accuracy, forging errors of batch blank parts can be adjusted flexibly, and quality problems of blank part alignment are controlled effectively.

The invention relates to a machining method of a shallow inclined hole of a cylinder block. The method comprises the steps that a pre-drilled hole is adopted as a guiding hole for subsequent machining, fast moving to a safety plane is performed, pre-drilling is conducted, then fast retreating to the safety plane is performed, and then machining is performed with given cutting parameters of the tool design, wherein the depth of the pre-drilled hole is controlled at about 2 times of the hole diameter of the machined hole, a tool adopts small feed during pre-drilling, the hole diameter of the machined hole is small, the hole is shallow, the orifice surface is irregular, and a certain included angle is formed between the axis of the hole and the orifice surface. By adopting the machining method for machining, the advantages of high machining efficiency, low tool cost and high dimensional precision of the hole are achieved.

The invention discloses a matched drill boom facility of a mining equipment bucket, relates to the technical field of equipment processing, and solves the problems that repeated positioning errors easily occur during the processing of existing bucket lug plate holes, the form and location tolerance of the bucket lug plate holes is influenced, and the bucket lug plate holes are inconsistent. The matched drill boom facility comprises a drill boom body, wherein the top of the left side of the drill boom body is fixedly connected with a group of drilling driving pieces, a group of drilling middle transmission transverse shafts are rotationally connected into the drill boom body, and four groups of drilling bases are uniformly arranged at the lower part of the drilling boom body. By arranging the four groups of drilling bases, four groups of holes in a vertical plate can be drilled at the same time, the working efficiency is improved, meanwhile, repeated positioning errors are avoided, the machining precision is guaranteed, the problem that bucket lug plate holes are inconsistent is effectively solved, meanwhile, the distances between the four groups of drilling bases are evenly adjusted and can be adjusted according to needs in use, machining of buckets of different models is met, practicability is improved, and adjusting operation is easy.

The invention discloses a gearbox assembling production facility. The gearbox assembling production facility is characterized by comprising a machine frame, a rotary table, a driving mechanism, an adhesive dispensing device, a gasket installation device, a gasket reshaping device and a jacking device. The rotary table is installed on the machine frame in a rotatable mode. The driving mechanism comprises a motor and a graduator. The output end of the motor is connected with the rotary table through the graduator. Five gearbox locating tools are arranged on the rotary table and uniformly distributed in the circumferential direction of the rotary table. The adhesive dispensing device, the gasket installation device, the gasket reshaping device and the jacking device correspond to the positions of the four gearbox locating tools in a one-to-one mode and are distributed in sequence. Each gearbox locating tool comprises a tool base plate, a locating pad and multiple locating pins. The gearbox assembling production facility can achieve the purpose of sequentially conducting the feeding and clamping work, the adhesive dispensing work, the gasket installation work, the gasket levelling workand the part discharging work on a gearbox, the occupied space is small, only one-time clamping is required in the whole assembling process, the working efficiency can be improved manyfold, and the production cost is reduced.

The invention discloses a glue filling clamp and a glue filling method for a stiffened wallboard compression test piece. The clamp structure comprises a stand column, a frame, a pressing assembly, a positioning assembly and a turnover assembly, the stand column is fixedly installed on the ground through an expansion foundation bolt after being leveled, the turnover assembly is arranged at the upper end of the stand column, a shaft support of the turnover assembly is fixedly connected with the frame, the positioning assemblies are transversely arranged on the upper and lower sides of the frame, and the pressing assemblies are longitudinally arranged on the left and right sides of the frame. The stiffened wallboard compression test piece is fixed and accurately positioned on the inner side of the glue filling clamp through the pressing assembly and the positioning assembly, and the stiffened wallboard compression test piece is subjected to turnover glue filling through the turnover assembly.