42results about How to "Solve clamping difficulties" patented technology

The present invention relates to special machining and manufacture technology, and is especially continuous impacting high energy short pulse laser apparatus and process for reinforcing metal material. The apparatus is provided with sliding block, flexible working film, cushion block, liquid exhausting piston and other parts to form a flowing constraint liquid medium layer capable of being replaced automatically through liquid inflow in the liquid inlet and the liquid outflow in the liquid outlet. The present invention has properly designed system to integrate the constraint liquid medium essential for laser impacting and the coating skillfully, so as to realize continuous laser impact reinforcing treatment without needing constraint layer fixing and coating. The present invention can also realize online assembling or repairing impact reinforcement.

A method for numerical control machining of large aircraft rib parts comprises a rough machining stage and a finish machining stage and is finished through four machining stations. The first rough machining face is a groove cavity face, rough machining of all of groove cavities is performed in a layer priority mode, and enough allowances are reserved at the bottoms of the groove cavities. The second rough machining face is a rib datum plane, and even rough machining allowances are reserved at all of positions. The finish machining face is a rib datum plane, positioning holes at two ends are re-adjusted after finish machining is finished, the second finish machining face is a groove cavity face, and finally process connecting plates at the gap positions of two-side edge plates and through hole positions of a web plate are separated.

The invention provides a horizontal micro-electric spark machine tool for manufacturing a microelectrode. The machine tool comprises a machine tool base (1), an X-Y two-dimensional workbench (2), an electrode main shaft (3), a grinding wheel grinding mechanism (4), a Z direction workbench (6) and a wire electric spark grinding mechanism (7), wherein the grinding wheel grinding mechanism (4) and the wire electric spark grinding mechanism (7) are fixedly arranged on the machine tool base (1) and positioned on both sides of the Z direction workbench (6) respectively; the electrode main shaft (3) is arranged on the X-Y workbench (2); a tool electrode to be processed is arranged on the electrode main shaft (3); and the X-Y two-dimensional workbench (2) drives the tool electrode to move relative to the carborundum grinding wheel grinding mechanism (4) and/or the wire electric spark grinding mechanism (7) so as to finish online manufacturing of the microelectrode. Online grinding of a carborundum grinding wheel is combined with online grinding of wire electric sparks and a high-accuracy optical grating ruler is adopted, so that high-efficiency and high-accuracy manufacturing of a micro-scale electrode is realized and high reliability and good economic benefit are achieved.

The invention discloses an insert integration type processing process. The insert integration type processing process comprises a first step of drawing a drawing with a plurality of insert outer contour maps according to the size and the shape of every to-be-processed insert; a second step of determining the size of needed blank according to the arrangement maps, and selecting the blank; a third step of detecting whether the squareness, the length, the width, the height and the tolerance of the blank meet the standard; a fourth step of performing computer numerical control (CNC) processing on the position of every to-be-processed insert, and forming every insert; a fifth step of performing electrical discharge machining (EDM) processing on every insert; and a sixth step of enabling the blank having undergone EDM processing to be clamped on a wire cutting machine tool to undergo wire cutting processing, and obtaining single inserts. The insert integration type processing process has the advantages that a plurality of inserts are integrated on one piece of blank to be integrally formed, clamping time of the single inserts is reduced, processing efficiency is improved, deformation of small inserts in processing can be effectively avoided, and the problem of difficulty in clamping special-shaped inserts and small single inserts is solved.

The invention discloses a machining process for precision forming of a large thin-wall storage tank hemispheroid. The machining process comprises the steps of plasma gas cutting, punch forming, cutting, shaping, finish turning of an inner spherical surface, finish turning of an outer spherical surface and surface treatment. The diameter of the hemispheroid of a large thin-wall storage tank is phi925, the wall thickness of the hemispheroid is delta 3.9<0><+0.3>, the ovality of the hemispheroid is phi 0.3; and the diaphragm type storage tank is high in size requirement and high in numerical control machining difficulty, and particularly, the diaphragm type storage tank is made of aluminum alloy and is insufficient in strength and rigidity, large in machining deformation and high in machining difficulty, so that the diaphragm type storage tank is a hemispheroid with larger diameter, the surface linear speed changes along with changes of the height of a part, different main shaft rotatingspeeds need to be selected according to different annular belts during turning, and therefore the machining difficulty is further improved. According to the machining process, ultrasonic measurementand special tool expansion clamping are explored and adopted for numerical control machining, the wall thickness tolerance of an upper hemisphere and a lower hemisphere of the storage tank is 3.9<0><+0.3>, the ovality is phi 0.3, the tensile strength sigma b after heat treatment is larger than or equal to 340 MPa, and the elongation is larger than 10%.

The invention discloses a fairing clamping tool, and belongs to the field of machining. The clamping tool comprises a bottom plate, a centering assembly and a plurality of tightening assemblies. The centering assembly comprises a centering shaft, the centering shaft is perpendicularly arranged on the bottom plate, and the tightening assemblies are arranged on the bottom plate in the circumferential direction with the centering shaft as the center. Each tightening assembly comprises a sliding block, a tightening block and a locking mechanism. The sliding blocks can be arranged on the bottom plate in the manner of sliding in the radial direction of the centering shaft. The tightening blocks are arranged on the sliding blocks, and the surfaces, away from the centering shaft, of the tightening blocks are arc faces. The orthographic projection of the arc faces on the bottom plate is an arc line, and the radius of the arc line is identical to the inner diameter of the large end of a fairing to be clamped. The locking mechanisms are used for locking the sliding blocks, and the sliding blocks and the bottom plate are relatively static. The tightening blocks and the inner wall of the large end of the fairing are in contact by moving the sliding blocks, then the sliding blocks are locked through the locking mechanisms, the sliding blocks cannot slide, and therefore the large end of the fairing can be located.

The invention discloses a mechanical press cylinder piston guide ring lathe processing tool and usage of the mechanical press cylinder piston guide ring lathe processing tool. The processing tool is used for assistant processing a guide ring on the lathe. The processing tool comprises a cylinder which is cylindrical and concentric with the guide ring, a plurality of bolts and a concentric convex ring arranged at one end of the cylinder extending along the axial direction. The inner diameter of the convex ring is equal to that of the cylinder. The outer diameter of the convex ring is smaller than that of the cylinder. A ring-shaped installation groove is formed between corresponding end surfaces of the convex ring and the cylinder. A plurality of installation holes which are communicated with the installation groove are formed in the other end surface of the cylinder. The guide ring can contain the convex ring, is clamped in the installation groove and is locked in the plurality of the installation holes through the plurality of the bolts to be fixed with the cylinder. The mechanical press cylinder piston guide ring lathe processing tool has the advantages that an inner circle, an outer circle and the end surfaces of the guide ring can be processed fast and conveniently, the requirement of workpiece size can be effectively controlled through the fact that a machine tool is processed, and meanwhile detected and revised. The invention further provides the usage of the mechanical press cylinder piston guide ring lathe processing tool.

The invention discloses a processing method for cylindrical turning of an arc plate assembly which is specifically implemented according to the following steps: firstly, processing a first clamping position at one end of each arc plate and processing a second clamping position at the other end thereof, wherein when all arc plates are cylindrically assembled, all the first clamping positions constitute a first cylindrical end and all the second clamping positions constitute a second cylindrical end; secondly, after all the arc plates are cylindrically assembled to form an assembly, using a clamping body to clamp the first cylindrical end and fastening the second cylindrical end into a blind hole in one side of a top plate; and finally, loading the assembly clamped by the clamping body and the top plate into a machine tool and performing cylindrical cutting on the surface thereof according to a set radian. By adopting the method, the problems that workpieces are unstable, easy to deformand have difficulties in loading, clamping and alignment when the arc plates are processed as a whole, and the workpieces are easy to spread during processing are solved.

The invention relates to a special clamp for machining a triangular pyramid. The special clamp comprises a base, a positioning index plate, a clamping block, a positioning pin and bolts, wherein the base is fixedly arranged on a machine tool work bench; the positioning index plate is connected with a workpiece blank through the bolts; the positioning index plate is attached to a positioning surface on the base; a stepped shaft on the positioning index plate is arranged in a positioning index plate mounting hole in the base; and the rotational degree of freedom of the positioning index plate is limited through the positioning pin inserted in a positioning hole in the base and a positioning hole in the positioning index plate; the clamping block is connected with the base through the bolts; and the axial degree of freedom of the positioning index plate is limited by the clamping block pressing the positioning index plate so that the whole workpiece is fixed. The special clamp is reasonable in structure and convenient to disassemble, thus effectively solving the problems that the triangular pyramid is difficult to clamp, low in machining accuracy and the like when being machined.

The invention discloses a machining method for small-batch production of O-shaped sealing ring fixing pieces. The machining method comprises the following steps of: a, receiving materials with the sizes of 100 * 60 * 40 and corresponding marks; B, milling the materials to be 90 +/-0.3 * 50 +/-0.3 * 30 +/-0.3 for standby application; C, drilling holes of phi 7 +/-0.2 * 90 in the milled materials, and ensuring that the sizes are 7 +/-0.2 and 4.5 +/-0.1; D, carrying out slow travelling wire cutting according to the sizes of workpiece materials to be machined for standby application; E, carrying out slow travelling wire cutting on the workpiece materials obtained in the step d according to the sizes of workpiece materials to be processed for standby application; and f, polishing the workpiece materials obtained in the step e until the surfaces with the roughness of Ra0.8 are obtained. According to the method, through reasonable discharging, a plurality of gaskets are combined into a workpiece with a large size, so that the problem that a small-size workpiece is difficult to clamp by large equipment is solved, and then stamping is replaced with a slow travelling wire cutting method, so that the problems that clamping is difficult and the size precision is difficult to guarantee are solved.

The invention provides an automatic ball machining device and a ball machining method. The automatic ball machining device comprises a conveying belt used for conveying blanks of machining balls, twomoving mechanisms, two rotating shaft motors, two ball nesting devices and a water spraying device used for spraying water to an operation station. The two moving mechanisms are erected at the two sides of the conveying belt in the width direction, each moving mechanism comprises two bottom plates, guide rails arranged on the two bottom plates respectively and electric sliding blocks oppositely arranged on the two guide rails in a sliding mode, and the two guide rails are located in the same line; the two rotating shaft motors are oppositely connected to the two electric sliding blocks; the centers of the two bead nesting devices are oppositely arranged, the two bead nesting devices are hemispherical and equal in diameter, and the ends of the bead nesting devices are coaxially connected with rotating shafts of the rotating shaft motors. The water spraying device is erected over the conveying belt through a first supporting frame. The invention further provides a ball machining method through the device.

The invention relates to the technical field of polishing, and discloses a polishing clamping device for special-shaped surface products. The polishing clamping device comprises a fast-disassembly clamping board, a chuck, a three-jaw lower chuck, flexible jaws, an edge-turning down prevention ring and a boss, wherein the fast-disassembly clamping board, the chuck, the three-jaw lower chuck and the edge-turning down prevention ring are sequentially and axially arranged; the chuck is separately movably connected with the three-jaw lower chuck and the fast-disassembly clamping board; clamping nail grooves matched with clamping nails are formed in the fast-assembly clamping board; the end surface of one end of the chuck extends outwards to form the boss, and a spiral groove is formed in the boss; at least two sliding grooves are formed in the three-jaw lower chuck; each groove is internally provided with a flexible jaw in a slidable manner; sliding blocks on the bottom surfaces of the flexible jaws penetrate through the three-jaw lower chuck and are matched with the spiral groove; and the bottom end of a special-shaped product is matched with the edge-turning down prevention ring, and the inner surface of the special-shaped product corresponds to the flexible jaws in position. The polishing clamping device is simple and reliable, and is easy to realize and convenient for assembly and disassembly; and the quality of the to-be-polished special-shaped products can be improved, so that consistency of polishing of the special-shaped products is realized.

The invention discloses an arc plate stepped hole machining device, which comprises a bottom plate, and is characterized in that both ends of the bottom plate are fixedly connected with clamp bodies,the two clamp bodies are oppositely and fixedly connected, each clamp body is U-shaped and fixedly connected with an arc-shaped block, the arc-shaped block is located on the inner wall, which is opposite to the opening, of the clamp body, one end of the clamp body is movably connected with a drill jig body, one end of the drill jig body is movably connected with the clamp body, the other end of the drill jig body is provided with a groove, the drill jig body is provided with a threaded hole, the threaded hole is located in the drill jig body, the threaded hole is internally equipped with a handle screw, the handle screw penetrates through the threaded hole, the end, which is close to the clamp body, of the handle screw is fixedly connected with an arc plate pressing block, one end of the clamp body is provided with a U-shaped groove, an eyelet bolt is movably connected in the U-shaped groove, the diameter of the eyelet bolt is matched with the size of the groove, the eyelet bolt extends out of the U-shaped groove, and the eyelet bolt is equipped with a locking nut. According to the machining method of the arc plate stepped hole machining device, the problem of difficult arc plate clamping in the prior art is solved.

The invention discloses wall panel installation equipment. The wall panel installation equipment comprises a machine frame, a left rotating frame, a right rotating frame, a cam and a returning mechanism, wherein the left rotating frame is rotatably arranged on the machine frame along a vertical axis, and the left rotating frame is provided with a clamping mechanism matched with the first side of awall panel; the right rotating frame is rotatably disposed on the machine frame along the vertical axis and located on the opposite side of the left rotating frame; the cam is rotatably disposed on the right rotating frame along a horizontal axis and is used for being in clamping fit with second side of the wall panel; and the returning mechanism is used for driving the cam to rotate so as to enable the convex surface of the cam to be opposite to the clamping mechanism of the left rotating frame. An existing wall panel clamping scheme is optimized. When the wall panel is installed, the wallboard self-weight is used for enabling the wall panel to be naturally in a vertical state. No power adjustment is required to enable the wall panel to be in a vertical state, and no sensor detection feedback is required. Assembling and disassembling are more convenient, automatic power adjustment is required, the cost of the mechanism is reduced, and the mechanical structure is simplified.

A positioning device used for connection rods and shell parts. The device comprises a positioning sleeve device, a hydraulic device, an in-sleeve transmission device and a guide pin device. One end of the in-sleeve transmission device is connected with the guide pin device, and the other end of the in-sleeve device penetrates through the positioning sleeve device and is connected with the hydraulic device. The in-sleeve transmission device comprises a pulling rod and a pulling nail, a T-type groove is formed in the end, close to the hydraulic device, on the pulling rod, the pulling nail is arranged in the T-type groove, and the pulling nail is connected with the hydraulic device. The other end of the pulling rod is evenly provided with dovetail inclined concave grooves. The guide pin device comprises a plurality of guide pin sets evenly distributed on the positioning plane. Each guide pin set comprises a guide pin and a positioning screw. A dovetail inclined convex groove is formed in one end of the inner side of each guide pin, and the shape, and the size and the position of each dovetail inclined convex groove correspond to those of the corresponding dovetail inclined concave groove. One end of the inner side of each guide pin extends to the axis of the in-sleeve transmission device. A flat bottom thread is arranged at one end of the outer side of each guide pin. The positioning screws are installed on the flat bottom threads. The positioning device has the advantages that a hydraulic expansion core positioning pin can achieve high-precision positioning, the parts can be easily clamped, and the problem that clamping for ensuring high-precision positioning is difficult is solved.

The invention provides a chip assembly bonding module, a clamp and a chip assembly clamping method which are used for clamping a chip assembly in a gold wire bonding process. The bonding module comprises a module body, a clamping piece, an elastic piece and a limiting piece. A positioning surface is formed on the module body, and the clamping piece is movably arranged on the module body. The elastic piece is connected with the module body and the clamping piece, and when the elastic piece is in an initial state, the bottom height of the end, close to the limiting piece, of the clamping piece is equal to or lower than the positioning face. The limiting piece is arranged on the module body. A positioning area for containing the chip assembly is formed between the clamping piece and the limiting piece, the positioning face is located in the positioning area to support the chip assembly, and the elastic piece is used for enabling the clamping piece to apply clamping force to the chip assembly. According to the bonding module of the chip assembly provided by the invention, the chip assembly is stably clamped between the clamping piece and the limiting piece through the elastic piece, sothat the probability that the chip assembly is damaged in a gold wire bonding process is effectively reduced.

The invention provides a clamp for clamping an inner chamber of a projectile body, which belongs to the technical field of special clamping for projectile bodies and mainly comprises a supporting part, a clamping part and a supporting transmission part. The supporting part is installed on machine tool equipment through screws, the clamping part and the supporting transmission part are installed on the supporting part and inside the supporting part, the transmission part is connected with a machine tool oil cylinder to achieve front-back pulling actions to complete loosening and clamping of the clamping part, and clamping of the tool is achieved. And the structure is simple, the universality is good, the precision is high, and the consistency of product quality machining is improved. And finally, the function of machining and clamping the workpiece is achieved.

According to the light and thin type refractory material special-shaped curved surface grinding machining device and method, the to-be-machined part is pressed on the cushion block through the pressing plate arranged on the check block, the to-be-machined part is limited on the cushion block through cooperation of the ejection block, and then the to-be-machined part is clamped in a one-pressing one-ejection one-padding mode through supporting of the cushion block; all special-shaped curved surfaces are machined through one-time clamping, the surface quality and precision of products are guaranteed, the products of different sizes can be machined by adjusting a screw of the jacking device, the mode of pressing, jacking and padding is adopted, reliability is high, the rigidity of refractory materials in the machining process is improved, and the service life of the refractory materials is prolonged. Vibration caused by suspension of the bottom is avoided, chipping and corner falling of refractory materials due to vibration are reduced, and disassembly is convenient. And the machining efficiency is greatly improved, and the rejection rate of products is reduced. And meanwhile, the quality and precision of the product are guaranteed, the reliability is high, and clamping is convenient.