38results about How to "Improve clamping firmness" patented technology

The invention provides a seal head structure part welding dislocation control tool and an assembling method. The tool comprises a pressing disc, a positioning body assembly, a lining and supporting rods. The positioning body assembly comprises a mandrel, a positioning body and a chassis, a hole is formed in the upper surface of the chassis, the mandrel is arranged in a manner of being perpendicular to the chassis, the positioning body is of a ring structure, the positioning body and the mandrel are coaxially mounted on the chassis, the upper surface of the positioning body is tightly attachedto the hemisphere inner wall profile to be welded, the pressing disc is of an annular structure, the inner hole profile is tightly attached to the hemisphere outer wall profile to be welded, the pressing disc is mounted on the chassis through the multiple supporting rods, and is matched with the positioning body, and the position of the hemisphere is fixed. The lining is a hollow step column, an inner hole is in threaded fit with the mandrel, the upper end penetrates through a front joint inner hole to be matched with a gasket and a fastening nut, and the front joint is fixed to the mandrel. The welding process is optimized, the reasonable assembling positioning method is adopted, and the front seal head end face annular line welding dislocation deforming problem of a certain engine is solved.

The invention discloses an irregular casting clamping device for casting production. The irregular casting clamping device comprises a foundation, wherein a base is arranged at the top of the foundation, a fixed ring is fixedly connected to the top of the base through bolts, and one side, close to the base, of the top of the base is is fixedly connected to a motor; and one end of the motor is in transmission connection with a rotating cylinder through a belt wheel set, and a first gear ring is arranged on the outer wall of one side of the rotating cylinder. According to the irregular casting clamping device for the casting production, multiple movable clamping columns can be in all-directional contact with the surface of the irregular casting, so that a plurality of directions of supporting force and extrusion force are provided for the irregular casting, then the irregular casting is effectively clamped, the clamping firmness of the clamping device on the irregular casting is effectively improved, the clamping column for extruding the irregular casting can be fixed through movable rings which move oppositely, so that the clamping force is ensured, and the problem that the clampingforce is lost due to loosening and movement of the clamping column is avoided.

The invention discloses an artificial seismic source device for geophysical exploration. The artificial seismic source device comprises two standing columns I, middle columns, and standing columns II.A bottom box is arranged at the bottoms of the standing columns I; a drive box is arranged at the top of the bottom box; and a telescopic moving mechanism is arranged at the inner wall of the drive box. A plurality of fixing holes distributed uniformly at equal intervals are formed in the outer walls of the middle columns. The middle columns are fixed at the inner tops of the standing columns I and the inner bottoms of the standing columns II by fastening bolts I; and one same top plate is arrange at the tops of the two standing columns II. A power supply mechanism is arranged at the top of the top plate; two fixed frames are arranged at the bottom of the top plate; and same directional wheels are arranged at opposite sides of the two fixed frames. According to the invention, on the basisof an electric hydraulic push rod driving mode, the height of the universal wheel is adjusted freely, the ground gripping effect of the device is improved; the light energy utilization rate is increased; the effects of energy conservation and environment protection are realized; and the wearing of the metal-structure hanging ring is avoided.

The invention provides a compressive yield strength test method for a material. A normal-temperature compression loading test is carried out on the material by using a universal testing machine and acompression clamp, the compression clamp comprises an upper jacking component, a lower jacking component and a commutator used for being connected between an upper connecting head and a lower connecting head of the universal testing machine, the commutator comprises an upper pressing block and a lower pressing block, the distance between the upper pressing block and the lower pressing block alongthe tensile direction of the universal testing machine for installing a sample is kept, the distance value can be adjusted, the upper pressing block and the lower pressing block are used for clampingand fixing the sample in a jacking mode that triangular prism-shaped positioning holes are matched with the jacking components along the racial direction of the sample. According to the method provided by the invention, the diameter of the rod-shaped sample is thickened, the time for obviously bending the sample is delayed, the safety of a test machine and an operation process is guaranteed, the end part of the sample is changed into a smooth cylindrical structure from a threaded structure, the clamping firmness of the sample is enhanced, the steps required for processing the sample into a finished product are reduced, and the neutralization of the sample can also be enhanced.

The invention provides a house building dividing strip constant-size processing device, and relates to the technical field of house building construction. The house building dividing strip constant-size processing device comprises a base, the top end of the base is provided with an inclined surface, the top end of the base is provided with a plurality of columns of circulating moving rollers, andthe rollers in every two adjacent columns are arranged at equal intervals. The two ends of each roller are mounted on a roller support through bearings, and the bottom, on the two sides of the rollers, of the roller support is fixed to a transmission belt. The two ends of an inner ring of the transmission belt are provided with driving rollers. A cutting blade is driven by a third motor to rotate,the third motor is fixedly installed on a motor supporting plate which is driven by a threaded lead screw to rotate, the length of the portion, extending on a motor supporting base, of the motor supporting plate is controlled, and the working position of the cutting blade is adjusted, so that the processing device can be used for processing building dividing strips with different lengths in batches.

The invention discloses an automobile front floor welding clamp, and relates to the technical field of automobile accessory machining, the welding clamp comprises a clamp base, a center bearing part and at least one pair of end clamping assemblies, and further comprises a clamping driving component, each end clamping assembly comprises a fixing support, a forward abutting part, an abutting rod, a mounting support body and two side clamping parts, the fixing support is installed on the clamp base and connected with the clamping driving component, the installation support body is arranged on the fixing support and provided with two clamping rotating shafts in rotating fit with the installation support body, each clamping rotating shaft is provided with a gear and a push rod, the abutting rod is provided with a rack capable of being meshed with the gear, and the clamping driving component is arranged on the abutting rod. The side part of the side clamping part is connected with the push rod; the end, away from the forward abutting part, of the abutting rod is provided with an elastic pressing piece. The automobile front floor clamping device is simple in structure, capable of achieving clamping rapidly, suitable for the shape of the clamped end of an automobile front floor, firm in clamping and high in practicability.

The invention discloses a clamping device with good firmness for drilling machine machining. The clamping device comprises a base, a support column is fixed to the top outer wall of the base through screws, and the top and bottom of the outer wall of one side of the support column are separately connected with a limiting wheel and a rotating wheel in a sleeved mode. A moving block sliding groove is formed in the outer wall of the top of the base, and the inner wall of the moving block sliding groove is slidably connected with a moving block. A threaded rod mounting hole is formed in the outerwall of one side of the base, and the inner wall of the threaded rod mounting hole is connected with a threaded rod in a sleeving mode. A working table is fixed to the top outer wall of the limiting wheel through screws, and a fixed clamping plate is fixed to one side of the top outer wall of the working table through screws. The distance between a sliding clamping plate and the fixed clamping plate and the distance between two sliding plates can be adjusted, a workpiece can be clamped and fixed from multi-directions, the improvement of the clamping firmness is facilitated, it is beneficial toimprove the operation convenience and the stability of the working table, and the possibility of workpiece movement during machining can be reduced.

The invention discloses steel structure support manufacturing equipment for steel structure factory building construction, the steel structure support manufacturing equipment comprises a base and a steel structure support body, the steel structure support body is located at the position, close to the center, of the top of the base, and fixing blocks are fixedly connected to the positions, close to the left side and the right side, of the top of the base. The equipment has the advantages that through the arrangement, the clamping firmness of the steel structure support body is high, the clamping stability is high, the later installation of the steel structure support body during assembling is facilitated, the situations of uneven angles and inclined installation during installation are greatly reduced, the welding problem is avoided, materials are saved, the welding effect is straight, the conditions of welding skips and uneven welding during manual welding are avoided, the labor amount of manual welding is greatly reduced, meanwhile, the production efficiency is improved, and the welding effect of the equipment is far higher than that of manual welding.

The invention relates to the technical field of textile machinery and discloses a stable textile machinery supporting device. The stable textile machinery supporting device comprises mounting machinery, wherein a fixed bar is fixedly connected to the front surface of the mounting machinery; a supporting framework is arranged in the bottom of the mounting machinery; first screws are in threaded connection to the left and right sides of the supporting framework; sealing blocks are in threaded connection to the back surfaces of the first screws; the opposite surfaces of the two sealing blocks arefixedly connected to auxiliary rods; the fixed rod is fixedly connected to the front surfaces of the auxiliary rods; a fixed block is fixedly connected to the bottom of the supporting framework; a first spring is fixedly connected to the bottom of the fixed block; a bottom block is fixedly connected to the bottom of the first spring; a first hinge is fixedly connected to the top of the bottom block; and a first connecting rod is fixedly connected to the top of the first hinge. The stable textile machinery supporting device achieves the purpose of being high in stability and excellent in shockabsorbing effect.

The invention provides a portable novel roller cleaning clamp for a diaphragm product. The portable novel roller cleaning clamp comprises a handle, anti-skidding balls, connecting bolts, a clamp sleeve, an outer layer of the clamp sleeve, a clamp device and a lining of the clamp sleeve. The handle is arranged at the lower part of the middle position of the clamp sleeve. The anti-skidding balls are arranged outside of the handle. The connecting bolts are fixedly connected with the clamp sleeve and the handle. The clamp sleeve is arranged at the upper part of the handle. The outer layer of the clamp sleeve is arranged at the outermost position of the clamp sleeve. The clamp lining is arranged on the innermost side of the clamp sleeve. The portable novel roller cleaning clamp for the diaphragm product has following beneficial effects: by means of a partition board of the clamp device, cleaning labels of the clamp device and the anti-skidding balls, firm clamping is improved so that the roller surface is favorably protected; in combination with organic solvent, dirt is completely cleaned so that safety performance is further improved; a skidding phenomenon during application is avoided; the clamp is used conveniently so that maintenance cost is reduced; and service lifetime is prolonged.

The invention provides a chromium-plated linear optical shaft batch machining and processing system, and relates to the technical field of machining. The system comprises a conveying belt which rotates circularly and a sliding rack installed at the top end of the conveying belt, wherein rollers are arranged at the left end and right end of an inner ring of the conveying belt; first feet are installed and fixed at the two ends of the rollers through bearings; and a plurality of optical shaft brackets are arranged on the outer wall of the conveying belt at equal intervals. According to the chromium-plated linear optical shaft batch machining and processing system, two fixed supporting rods and one movable rod are arranged in each clamping hole of the sliding rack, and the top ends of the twofixed supporting rods and the top end of the movable rod are each hinged with a movable clamping claw which is bent in an arc shape; and through the hinge and swing of every two movable clamping claws, the adaptive clamping is carried out through the automatic swing of the movable clamping claws when the corresponding movable rod stretches and retracts in the corresponding clamping hole, so thata chromium-plated linear optical shaft installed in each clamping hole is clamped and fixed, and the clamping firmness of the chromium-plated linear optical shafts is improved.