19results about "Drop hammers" patented technology

A press (1) for forging metal items, in particular, ingots, comprising - a movable crossbeam (3); - a plurality of hydraulic cylinders (2) adapted to move the movable crossbeam (3); - a first tank (21), adapted to contain oil; - a pumping system (4) adapted to send oil from the first tank (21) to the hydraulic cylinders (2), in particular to pressurize the hydraulic cylinders (2); - an energy recovery system comprising one or more hydraulic accumulators (5) adapted to receive and release oil, in particular pressurized oil, discharged from the hydraulic cylinders (2) during a step of decompressing the hydraulic cylinders (2) in which the oil passes from the forging pressure to a lower pressure; a first valve (7), adapted to control the oil flow from the hydraulic cylinders (2) to said one or more hydraulic accumulators (5).

The invention discloses a high-speed hammer forging device, and relates to the technical field of hammer forging equipment. The device comprises a rack, a working cylinder is arranged at the top of the rack, a working piston is slidably connected to the interior of the working cylinder, a hammer head is fixedly connected to the bottom of the working piston, the hammer head is composed of a hammer rod and a hammer disc, multiple sets of vertical swing grooves are annularly formed in the outer side of the hammer rod, and multiple sets of horizontal swing grooves are annularly formed in the top of the hammer disc; a vertical swing rod is hinged to the interior of the vertical swing groove, a horizontal swing rod is hinged to the interior of the horizontal swing groove, and the outer side of the hammer rod is sleeved with a hammer ring. Primary hammer forging is carried out through the hammer head, the hammer ring falls on the hammer disc under the action of gravity to carry out secondary hammer forging, and primary impact and secondary hammer forging are carried out, so that deformation can be more stable, and excessive deformation of a workpiece caused by overlarge single impact force is avoided. The double impact can control the impact force, so that the deformation of the forge piece is more uniform, and unnecessary stress concentration is avoided.

The invention discloses a composite energy storage type high-speed servo impact device and a using method. The composite energy storage type high-speed servo impact device comprises a combined machine body, an energy storage impact mechanism, a servo hammer lifting mechanism and a locking and releasing mechanism. The combined machine body comprises an upper box body and a lower box body, and the upper box body and the lower box body are connected through stand columns. The energy storage impact mechanism is embedded in the upper box body, and the servo hammer lifting mechanisms are arranged on the two sides of the upper box body. The energy storage impact mechanism comprises an air cylinder, an upper cavity of the air cylinder is communicated with an external air storage chamber through an upper end cover and an air valve, a lower cavity is embedded in the upper box body and fixed to a bottom plate of the upper box body through the end cover, a piston rod is arranged in the lower cavity, one end of the piston rod is fixedly connected with a piston, and the other end of the piston rod is fixedly connected with a hammer. The stand columns penetrate through the four corners of the hammer head to be connected to the lower box body. Elastic devices are arranged on the upper surface of the hammer head and the lower surface of the bottom plate of the upper box body; the locking and releasing mechanisms are fixed to the four corners of the hammer head and arranged on the stand columns in a sleeving mode. The invention has the advantages of simple structure, small volume, high processing efficiency and high energy utilization rate.

The invention discloses a composite energy storage type high-speed forming device and a use method thereof, and aims to solve the technical problems of low striking efficiency and high maintenance difficulty of a high-speed forming device in the prior art. The composite energy storage type high-speed forming device comprises a combined machine body, an energy storage speed increasing mechanism, a pneumatic hammer lifting mechanism, an electromagnetic locking mechanism and a hammer head mechanism, by adopting a composite energy storage mode of high-pressure gas potential energy and hammer head gravitational potential energy, breakthrough on the impact speed of an existing traditional drop hammer is achieved, the metal forming capacity and quality are remarkably improved, and the forming efficiency is improved. And the requirement of high-performance material processing on high-speed impact is met. According to the using method, the high-speed forming device is used for machining and production, the consistency and repeatability of the forming process are ensured, the production efficiency and the product quality are improved, the production capacity is remarkably improved, and the requirement for large-scale production is met.

The invention relates to the field of flange forging equipment, in particular to a forging device for machining a high-strength flange tube socket, which comprises a hammer carrier structure, a forging table structure and a hammer lifting structure which are mounted on a base, the forging hammer structure arranged on the hammer frame structure in a sliding mode is connected with the hammer lifting structure so as to slide upwards in the hammer frame structure under the control of the hammer lifting structure. Two hammer releasing structures connected with the hammer lifting structure are mounted on the hammer frame structure, and when the forging hammer structure slides upwards to a preset position to be in contact fit with the two hammer releasing structures, the two hammer releasing structures control the hammer lifting structure to be separated from the forging hammer structure; and the forging hammer structure falls under the action of gravity to carry out forging and pressing treatment on the forging blank on the forging table structure. The forging hammer structure is controlled by the hammer lifting structure during ascending, and the descending forging process depends on the gravity effect and does not need to be driven by power equipment, so that the service life of the hammer lifting structure is shortened, the energy consumption in the whole forging process is reduced, and the production cost is reduced.

To provide a method for applying a coating product by use of a print head.SOLUTION: The method is configured from continuous steps comprising each step from a) to f) that are executed by a computer, that is, a step a) at which a strip on a surface to be coated is defined; a step b) at which an orbit concerning the strip on the surface is defined; a step c) at which the strip on the surface is eliminated from an information sheet for modeling the surface; a step d) at which operation is started again in the step a) until an area of the modeled surface becomes zero; a step e) at which an operation program for each print head and a nozzle is regulated for each route; and a step f) at which on the basis of the operation program regulated in the step e), each print head nozzle is operated for different orbits according to orientation of the print head at each attention point, thereby applying a coating product.SELECTED DRAWING: Figure 11

A precision forging machine transmission shaft buffer transmission device comprises a worm gear, a worm, a transmission shaft and a clamping portion, the worm gear is meshed with the worm, the transmission shaft is concentrically connected to one end of the clamping portion, and the precision forging machine transmission shaft buffer transmission device is characterized in that the worm gear can be rotationally sleeved on the surface of the transmission shaft relative to the transmission shaft; the worm gear is provided with a plurality of pin shaft holes evenly distributed in the circumferential direction of the transmission shaft, a pin shaft penetrates through each pin shaft hole, the two ends of each pin shaft extend in the axial direction of the transmission shaft, the two ends of the transmission shaft are each sleeved with a sleeve, and the two sleeves are fixedly connected with the transmission shaft. One end of the pin shaft is fixedly connected to one sleeve, and the other end of the pin shaft is movably connected to the other sleeve in an inserted mode. The worm gear drives the transmission shaft through the pin shaft, when the hammer head of the precision forging machine makes contact with a workpiece, the pin shaft is bent, the end, movably connected with the sleeve in an inserted mode, of the pin shaft retracts, when the hammer head of the precision forging machine leaves the workpiece, the pin shaft rebounds, and therefore buffering transmission is achieved.

The damping type clamping mechanism comprises a base, an electro-hydraulic hammer body is installed at the top end of the base, fixing plates are installed on the two sides of the top end, below the electro-hydraulic hammer body, of the base, electric telescopic rods are installed on the inner sides of the fixing plates, and clamping plates are installed on one sides of the electric telescopic rods. Guide rods are mounted at the two ends, close to the fixing plate, of the clamping plate, and one end of each guide rod penetrates to the outer side of the fixing plate. By means of the telescopic function of the electric telescopic rod, the two clamping plates can get close to each other, the left-right clamping function on a workpiece is achieved, the other two sides of the workpiece are further clamped under the cooperation of the limiting guide grooves, the clamping blocks and the like, the clamping contact area of the workpiece is increased, and the clamping efficiency of the workpiece is improved. Therefore, the stability of the workpiece in the hammer forging process is further guaranteed, and meanwhile the clamping mode can adapt to workpieces of different sizes.

The present invention discloses a precision forging processing equipment, including a fixed base, both sides of the top of the fixed base are fixedly connected with support frames, a crossbeam plate is set between the tops of the two support frames, two parallel first slide bars are fixedly connected between the crossbeam plate and the fixed base, a quick forging mechanism is slidably connected between the two first slide bars, and the inner sides of the two support frames are fixedly connected with second slide bars. The present invention places the workpiece to be processed on the top of the processing table and fixes it, and the first rotating shaft is driven by the output shaft of the motor to rotate the driving gear, and the driving gear and the first driven gear or the third driven gear are selected to rotate by adjusting the connecting assembly, and the state conversion of the heavy hammer reciprocatingly hitting the workpiece and the reciprocating small hammer reciprocatingly hammering the workpiece is selected, so as to realize the precision processing control. Compared with the prior art, the forging is uniform and precise, easy to control, and cost-saving.

The utility model relates to the technical field of high-pressure gas tanks, and provides a water level pressure control device for a high-pressure gas tank group. Comprising a high-pressure gas tank group, a high-pressure water level pipe, a buoy, a circuit controller and a group of magnetic reed switches for controlling the water level in the high-pressure water level pipe to float in a water level range corresponding to a high-pressure mode or a water level range corresponding to a low-pressure mode, the high-pressure water level pipe is communicated with the interior of the high-pressure gas tank group, the magnetic reed switches are arranged at different height positions of the outer wall of the high-pressure water level pipe and connected with the input end of the circuit controller, and the control signal output end of the circuit controller is connected with the control signal input end of the high-pressure pump. The buoy is magnetic, is installed in the high-pressure water level pipe, and can move up and down along with the water level and trigger the magnetic reed switch at the corresponding height. The pressure range of the high-pressure gas tank group can be efficiently and rapidly adjusted, and pressure dynamic control in different forging modes can be achieved.

The subject of the invention is a method of drop forging a magnesium wheel forging for light vehicles and a magnesium wheel forging produced by this method, characterised in that the upper drop forging die (1) having a working impression (la) in the central part and the lower drop forging die (3) having a working impression (3a) in the central part in the form of a lump whose outline is similar to a circle with circular recesses in the centre, is heated in a furnace to 260 °C to 300 °C, after which the heated upper drop forging die (1) is mounted to the ram of the hammer forging by means of a dovetail (lb), and the heated lower drop forging die (3) is mounted by means of a dovetail (3b) to the anvil block of the drop forging hammer, and then the forging preform (2a) in the form of a forging preform cast into metal moulds of magnesium alloy AZ31 (Mg-3Al-lZn) is heated in a furnace to a temperature of 350 °C to 440000 °C, for a period of 40 to 45 min, after which the heated preform (2a) is placed in the working impression (3a) in the lower forging die (3), then the upper forging die (1) is driven in a downward progressive motion with a velocity (VI) of 7 m / s towards the lower drop forging die (3) and the upper drop forging die (1) is impacted with a maximum impact energy in the range of 9, 14 to 11.17 kJ is crushed with the working impression (2a) of the upper drop forging die (1) and the working impression (3a) of the lower drop forging die (3), forming the wheel preform (2b) with a deformation ranging from 6.41 to 10.6. The object of the invention is also a magnesium wheel forging for light vehicles produced by the aforementioned method.

The object of the invention is a method for plastic forming on a hydraulic press of a wheel forgings made of AZ91 magnesium alloy for light vehicles, in particular from a forging preform into metal moulds, and a wheel forgings formed by this method characterised in that, the upper drop forging die tool (1) with a finishing impression (la) in the centre and a lower drop forging die tool (3) with a finishing impression (3a) in the form of a lump whose outline resembles a circle with circular recesses in the centre, is heated in a furnace to 260°C to 300 °C, then the heated upper drop forging die tool (1) and the heated lower drop forging die tool (3) are assembled in the workspace of the press, and then the forging impression (2a) cast into metal moulds of the AZ91 magnesium alloy (Mg- 9Al-lZn) is heated in an oven to 300 °C to 400°C for a period of 30 to 35 min, after which the heated forging blank (2a) cast into metal moulds is placed and centred in the finishing blank (3a) of the bottom drop forging die tool (3), after which the top drop forging die tool (1) is driven downwards on a hydraulic press at a speed (VI) of 20 mm / s towards the lower drop forging die tool (3) and the forging preform (2a) cast into metal moulds is compressed by the finishing impression (la) of the upper drop forging die tool (1) and the finishing impression (3a) of the lower drop forging die tool (3) with a forging force ranging from 1689, 9 kN to 2044.6 kN, a wheel forging (2b) is formed with a deformation in the range of 7.72 to 11. The object of the invention is also a wheel forging produced by the method as specified above.

The subject of the invention is a method of drop forging on a hammer of a magnesium wheel forgings from a die casting for metal forms and a magnesium wheel forgings shaped in this way, characterized in that the upper drop forging tool (1) having a finishing impression (1a) in the middle part and the lower drop forging tool (3) having a finishing impression (3a) in the central part, and the finishing impression (1a) and (3a) are in the form of a solid whose outline is similar to a wheel with circular valleys in the middle, is heated in a furnace to a temperature from 260 °C to 300 °C, after which the heated upper drop forging tool (1) is mounted to the forging hammer with a dovetail (1b), and the heated lower drop forging tool (3) is mounted to the die hammer with a dovetail (3b), and then the blank (2a) cast to the metal AZ91 (Mg-9AlZn-1) allocks are heated at a temperature from 350 °C to 400 °C, in the period from 30 minutes to 35 minutes, after which the heated blank (2a) cast into metal moulds is placed and centered in the finishing impression (3a) of the lower drop forging tool (3), then the upper drop forging tool (1) is set in a progressive movement down with a velocity (V1) of 6 m / s towards the lower drop forging tool (3) and the impact of the upper drop forging tool (1) with a maximum impact energy in the range of 6.11 to 7.51 kJ, the forging preform (2a) cast into metal moulds is compacted with the finishing impression (1a) of the upper drop forging tool (1) and the finishing impression (3a) of the lower drop forging tool (3), shaping the forging of the wheel (2b) with a deformation in the range from 4.42 to 11.1. The subject matter of the invention is also a wheel forging produced by the method set forth above.

The present invention provides a post-processing device for the production and processing of hydraulic equipment, which relates to the technical field of post-processing of metal castings, and comprises: a conversion component, wherein the linkage processing rod is inserted into the interior of a connecting shell, and the device has a low-speed extrusion processing mode and a hammer processing mode, and the two processing modes can be freely adjusted and used through a control mechanism, and can adapt to different production and processing requirements of hydraulic equipment blank parts and components, and one machine has multiple uses. During production and processing, the linkage processing rod is always tightly pressed against the processing position of the blank parts and components, and there is no exposed space, thereby avoiding the occurrence of dangerous accidents during production and processing, and solving the problem that there is no protective structure in the exposed space between the extrusion device and the blank parts and components during extrusion, and safety accidents are prone to occur during extrusion, and at the same time, the extrusion device cannot hammer the blank parts and components for processing, and when hammering processing is required, additional hammering equipment is required, and the adaptability is poor.

This method of applying a coating product to a surface (S) is implemented by means of a print head (10) which, on the one hand, is mounted on a robot arm designed to move it in relation to the surface and which, on the other hand, includes a body equipped with at least one print nozzle.This process includes successive steps, carried out by a computer (40) and consisting of: a) defining (102), by an automatic calculation, a slice (T) of surface to be coated; b) defining (104), by an automatic calculation, a trajectory (Traj) in relation to the slice (T) of surface to be coated; c) removing (106), by an automatic calculation, the slice to be coated (T) from a computer file (F) modeling the surface to be coated (S); d) starting again at step a) until the modeled surface to be coated has zero area; e) defining (110) a program (Prog(TRAJ)) for activating each nozzle (14) of the print head (10) on each trajectory (Traj); and f) apply (112) the coating product by activating each nozzle of the print head on the different trajectories (Traj) respecting the orientation of the print head (10) at each notable point, according to the activation program defined in step e).

To provide a method for applying a coating product by use of a print head.SOLUTION: The method is configured from continuous steps comprising each step from a) to f) that are executed by a computer, that is, a step a) at which a strip on a surface to be coated is defined; a step b) at which an orbit concerning the strip on the surface is defined; a step c) at which the strip on the surface is eliminated from an information sheet for modeling the surface; a step d) at which operation is started again in the step a) until an area of the modeled surface becomes zero; a step e) at which an operation program for each print head and a nozzle is regulated for each route; and a step f) at which on the basis of the operation program regulated in the step e), each print head nozzle is operated for different orbits according to orientation of the print head at each attention point, thereby applying a coating product.SELECTED DRAWING: Figure 11

The subject of the invention is a method of manufacturing a magnesium alloy wheel forging on a hydraulic press, characterized in that the upper die (1) having a working impression in the middle part (la) and the lower die (3) having a working impression (3a) in the form of a lump whose outline is similar to a circle with circular recesses in the middle, is heated in a furnace to a temperature of 260° C to 300 o C, after which a heated upper die (1) and a lower die (3) are mounted in the working space of a hydraulic press with a pressure of 1600 kN to 2242 kN, and then a forging preform (2a) in the form of a forging cast into metal forms of a magnesium alloy AZ31 (Mg-3Al-lZn) is heated in the furnace to a temperature of 350° C to 400° C, for a period of 40 to 45 minutes, after which the heated forging preform (2a) is placed in the working impression (3a) of the lower die (3), after which it is pressed with a hydraulic press on the upper die (1), causing the upper die (1) to move downwards with a velocity of 20 mm / s to 40 mm / s in the direction of the lower die (3), and the forging preform (2a) is crushed with the working impression (la) of the upper die (1) and the working impression (3a) of the lower die (3), shaping the forging (2b) of the wheels with a deformation in the range of 6.43 to 12.9. The object of the invention is also a wheel forging produced by the method as specified above.

This invention relates to the field of gear composite forging technology, specifically a gear composite forging forming equipment. The equipment includes a base with a hydraulic cylinder fixedly connected to it, and a composite forging structure connected to the base. The composite forging structure includes a forging table fixedly mounted on the base, a through slot in the center of the forging table, a blank placement slot on the forging table, and a lower die body assembled on the forging table. An arc-shaped linkage frame is fixedly connected to the moving end of the hydraulic cylinder, and an upper die body and a forging hammer are respectively assembled at the lower ends of the arc-shaped linkage frame. A three-position moving structure is also mounted on the base. This invention utilizes the combination of the composite forging structure and the three-position moving structure to perform composite forging processing on the blank, automating the material unloading operation and improving processing efficiency.