239results about How to "Reduce bruises" patented technology

The invention discloses a train brake lining with an adjuster, comprising an installation plate, an adjuster, friction blocks and a spring retainer ring, wherein the adjuster comprise an installation lug boss and an adjuster positioning convex pin, a tail connection shaft for the friction blocks passes through a through hole on the adjuster and a friction block installation hole on the installation plate, and the end part of the tail connection shaft is elastically connected with the installation plate through the spring retainer ring; in the friction blocks, first friction blocks are hexagon bodies, second friction bodies are pentagon bodies, one face of five side faces of each second friction block, facing the outside of the installation plate, is a cambered face, the second friction blocks are arranged along the periphery of the front side of the installation plate and surround the first friction blocks in the middle, or the second friction blocks are distributed along the inner and outer arc edges of the front side of the installation plate in two rows and sandwich the first friction blocks. The train brake lining with the adjuster can improve an effective friction area during working and effectively decrease the occurrence of the phenomena of cracking, falling, defecting, performance declination and the like of the friction blocks, and has strong heat dissipation capability.

The invention relates to modified Factor IX coding sequence, expression cassette, vectors such as viral (e.g., lenti- or adeno-associated viral) vectors, and gene transfer methods and uses. In particular, to target Factor IX nucleic acid to cells, tissues or organs for expression (transcription) of Factor IX.

The invention relates to a multi-parameter workpiece sorting machine capable of moving workpieces by push rods. An upper arm and a lower arm are hinged to a base frame; a panel is fixedly arranged at the upper end of the base frame; a material pushing device and a sensor are fixedly arranged on the upper surface of the panel; a guide strip is fixedly arranged on the upper surface of the panel, on one side of a gap; a conveyor belt is arranged on one side of the panel; a first baffle plate, a second baffle plate, a first groove plate and a second groove plate are arranged on the conveyor belt; an interval material pushing mechanism is arranged under the panel and comprises an annular transmission belt under the panel; the transmission belt is driven by a transmission belt motor; three-wheel trolleys are fixedly arranged on the transmission belt at equal intervals; the push rods are fixedly arranged on the three-wheel trolleys; trolley upper-layer rails are arranged on the transmission belt and trolley lower-layer rails are arranged under the transmission belt; and the three-wheel trolleys are matched with the trolley upper-layer rails and the trolley lower-layer rails. The multi-parameter workpiece sorting machine capable of moving the workpieces by the push rods has the advantages of compact structure, and convenience and reliability in utilization.

A hand accessory contoured to anchor into tough areas of a hand and bridge over sensitive areas in securing a grip on an implement handle, maximizing the transmission of force to the implement handle, minimizing stress received in the sensitive areas of the hand (primarily the upper areas) and increasing power transmission through tougher and stronger areas of the hand (primarily the lower areas).

The invention discloses a brake pad for a train. The brake pad comprises a mounting plate and friction blocks, wherein, the friction blocks are arranged on the mounting plate; the friction blocks comprise first friction blocks and second friction blocks; the first friction blocks are in a hexagonal shape, and the second friction blocks are in a pentagonal shape; one of five sides of each second friction block, which faces towards the outer side of the mounting plate, is a convex cambered surface; and the second friction blocks are distributed around the front face of the mounting plate and surround the first friction blocks, or the second friction block are distributed in two rows along the inner and outer cambered edges of the front face of the mounting plate and clamps the first friction blocks in the middle. The brake pad has the advantage that damage of the friction blocks of the brake pad under a high-speed and high-pressure brake condition can be effectively reduced.

The invention relates to the technical field of precision forging in mechanical manufacturing industry, and aims at providing a forging technology of a long shaft type half shaft gear. By means of the technology, the material utilization rate is effectively improved, economic benefits are increased, and the forming quality is improved. The forging technology of a long shaft type half shaft gear comprises the following steps of 1, preheating; 2, heating; 3, preforging, wherein a combined die is adopted, a combined lower die comprises a female die, the draft angle of a female die cavity is 2-3 degrees, a combined upper die comprises a toothed die, and the female die is provided with one or more positioning concave portions; 4, descaling; 5, finish forging, wherein the die used in the preforging procedure is adopted for finish forging, and the draft angle of the female die cavity of the die is 2-3 degrees. Material consumption is reduced, the material utilization rate is improved, and economic benefits are increased. Due to the fact that the positioning concave portion is arranged on the female die, secondary positioning is well ensured, in this way, the same die can be used for the preforging procedure and the finish forging procedure, and the precision of a forged workpiece is improved.

The invention discloses a conical piece hoisting device which is characterized in that: a round groove is arranged at the center of a surface of a chassis; slider grooves are uniformly distributed around the groove and communicated with the groove; and the slider grooves are radially distributed along the chassis. A hoisting rod is located at the center of the chassis. Multiple sliders with the same cross section as the slider grooves are located in the slider grooves respectively; and the two bevels of the slider are in clearance fit with the slider groove. A rod pressing body is fixed on the upper surface of the slider. An adjusting mechanism drives the slider to move toward the center of the chassis, the hoisting device is placed downwards from the center of a small end hole of the conical piece, and the rod pressing body contacts with the conical piece to hoist the conical piece. The rod pressing body drops due to the gravity to contact with the slider; the hoisting device is lifted upwards; and an adjusting nut is rotated to move downwards. Due to the adjusting mechanism and pull rod, the slider and rod pressing body move outwards to contact with the workpiece so as to hoist the workpiece. The conical piece hoisting device disclosed by the invention can effectively realize automatic entering and horizontal hoisting without changing the position of the conical piece, has the advantages of simple structure, good generality, reliable contact and low cost, and is easy to process.

The invention relates to a grinding process method of an ultra-light narrow bearing sleeve ring. Compared with the original process, the grinding process method is characterized in that one-time additional annealing is added, one-time grinding circulation is added, a ceramic forming cutter is adopted, and disposable hard turning chamfering is carried out on an assembling chamfer of a bearing part on a turning lathe according to the size requirement of a finished product. According to the grinding process method, the stress in the bearing sleeve ring is effectively released, so that the residual stress is smaller, further the stability of the performance of the sleeve ring is increased, the chamfer size requirement of the finished bearing product is guaranteed, the appearance is bright, the inconsistent size of the assembling chamfers of the finished bearing products is avoided, the collision of a chamfer surface is reduced and the chamfer size of the part of the finished bearing product is not limited by lathe workers for all the processing surfaces.

The invention discloses a kiwifruit cleaning dehairing device. The device comprises a base, a box body, a first gear and a hopper; a supporting post is arranged on the base; the top of the supportingpost is provided with a first air bag; the hopper passes through the first gear and extends into the box body; a plurality of baffles are connected to the bottom of the first gear; the baffles are rotatably connected to the box body; the inner side of the baffles are provided with a plurality of second air bags with brushes; the first gear engages with a half gear; the half gear is fixed with a rotating shaft which is rotatably connected to a frame; the other side of the half gear is provided with a second gear; the second gear is fixed with a gear shaft which is rotatably connected to the frame; the gear shaft is connected to a first bevel gear; the first bevel gear engages with a second bevel gear; the second bevel gear drives a transmission mechanism through a tensioning shaft; and a cleaning device is arranged above the hopper, and a water pump supplies the cleaning device with water. The device can carry out automatic dehairing and cleaning on kiwifruits, and reduce the intensityof manual operation.

The invention discloses a single-track transportation system with a buffer function. The system comprises a single track and a transportation machine arranged on the single track, the transportation machine includes a head traction part and a truck body part; the head traction part includes a rack, driving wheels, an engine, a reduction gearbox, a brake mechanism and a shifting mechanism, whereinthe driving wheels are arranged at the lower portion of the rack, and the engine, the reduction gearbox, the brake mechanism and the shifting mechanism are arranged on the rack; the truck body part comprises a truck hopper and anti-shaking walking mechanisms arranged below the truck hopper, wherein each anti-shaking walking mechanism comprises a first bearing wheel, a second bearing wheel, a firstanti-overturning wheel, a second anti-overturning wheel, a fixing frame, a first rotating arm, a second rotating arm and an elastic buffer mechanism, the first bearing wheels and the second bearing wheels are arranged on the single track, the first anti-overturning wheels and the second anti-overturning wheels are arranged below the single track, and the elastic buffer mechanisms are arranged between the first rotating arms and the second rotating arms; the single-track transportation system has the advantages of being stable during transportation and good in damping performance, and therefore collision damage to fruits during transportation can be greatly reduced.

The invention discloses a contact aluminium wire continuous annealing method, comprising the following steps of wire drawing, continuous annealing and dual wire collecting. A contact aluminium wire continuous annealing device comprises an aluminium wire large drawing machine, a contact aluminium wire continuous annealer and a dual automatic disc exchanging wire collecting device; the wire feeding end of the contact aluminium wire continuous annealer is connected with the wire output end of the aluminium wire large drawing machine; and the wire output end of the contact aluminium wire continuous annealer is connected with the wire feeding end of the wire collecting device. The contact aluminium wire continuous annealer comprises a power module, a machine shell, at least one wire guiding wheel, at least one drawing wheel, at least one preheating copper contact wheel and at least one annealing copper contact wheel. The aluminium wire produced by adopting the device and the method has the advantages that aluminium wire adhering does not happen after annealing, the softness and hardness of the aluminium wires of the outer layer and the inner layer of the wire coil are consistent, the resistance is consistent, the quality is high, the length is large and the like; the invention can realize assembly line work, save energy, reduce the consumption, and can be widely applied to manufacture electrical wires, electrical cables and large-span overhead aluminium wires which use carbon fiber as a strengthening core.

The invention provides equipment for improving the live transportation survival rate of edgy fishes. The equipment comprises a tank (1), a plastic cover film (2) matched with the tank (1), and a water purifier (3). The water purifier (3) comprises a water distribution layer (4), an ice cube layer (5), a filter cotton layer (6), an active carbon layer (7), and a water storage layer (8), wherein the above layers are arranged from top to bottom. The lower part of the tank (1) is provided with a water inlet pipe (9) to be connected with the water distribution layer (4) via the water purifier. The upper part of the tank (1) is provided with a provided with a water outlet pipe (10) to be connected with the water storage layer (8) via the water purifier. The water outlet pipe (10) of the water purifier is provided with an airlift pump interface (11). According to the technical scheme of the invention, a water quality purification method for water in transportation facilities is provided for aquaculture practitioners during the transportation process based on the physiological characteristics of saury and shad. In this way, the collision injured risk of fishes when frightened is reduced, and the water quality of the transportation water is improved. Meanwhile, the metabolites of fishes are timely eliminated, so that the stress reactions of edgy fishes, such as saury and shad, are reduced. Moreover, the risk of mechanical traumas and the risk of physiological endogenous injuries during the transportation process are reduced. The live transportation survival rate of fishes is improved. Furthermore, the temporary-rearing or cultivation survival rate of fishes after the transportation process is improved.

The invention relates to a ball loading device of a high-efficiency angular contact bearing. The device comprises a base, wherein the base has a convex structure; a center boss on the upper surface thereof has a groove ring for placing a bearing inner ring; the inner side wall of the groove ring is contacted with the inner wall of the bearing inner ring; a guide ring is mounted at the periphery of the center boss; the lower surface of the guide ring is connected with the base through multiple springs; the upper surface of the guide ring has a guide ring surface inclined to the groove ring; and an installation gap for mounting a bearing retainer is formed between the guide ring and the groove ring. The device is simple in structure, and changes the traditional manual installation of steel balls to an automatic steel ball assembly mode through a guide structure to realize automatic assembly of the steel balls, so that the bump damage and the less loading rate of the steel balls are reduced, the installation speed of the steel balls is accelerated, and the production efficiency is improved.

The invention relates to a mounting method for an insulating layer of a nuclear reactor pressure vessel. In order to optimize the whole nuclear island mounting construction period, in the mounting method, a connecting ring, a hanging bracket, a channel steel ring, a barrel insulated board, and the like are assembled into a prefabricated whole, and the prefabricated whole is hung on a reactor shaft; then a pressure vessel is hung; accessories in the process of mounting are disassembled, and proper adjustment is carried out, wherein when the pressure vessel is arranged, the mounting work of a barrel insulating layer can be finished in one day, and compared with the time of nine days in a scheduled plan of the prior art, the mounting method saves eight days. In the mounting method, the hanging ring can avoid being operated with heavy load repeatedly for a long time, thereby reducing the probability of ring hanging accidents. The pressure vessel and the insulating layer also can avoid being hung in and out of the reactor shaft for many times, thereby reducing the probability of damage of the outer surface of the insulating layer.

The invention relates to a household anti-theft electric meter box with a lighting system. The household anti-theft electric meter box comprises an electric meter box body, a holder, a box door, and an electric meter brake. The electric meter box body is a rectangular cavity which is provided with ventilation holes in two sidewalls. The holder is installed in an upper middle position of the rear sidewall of the rectangular cavity. An infrared induction lighting lamp corresponding to the holder is arranged on the upper sidewall of the rectangular cavity. The box door includes two sliding doors. Each sliding door is provided with an observation window corresponding to the holder at the upper end, a plastic door handle in the middle, and an operation slot at the lower end. The lower side of one sliding door is equipped with a code scanner. The two sliding doors are locked by an electronic lock. The two parts of the electronic lock are installed on the lower sides of the two handles respectively. The upper and lower ends of the electric meter box body are each provided with a slide slot. The upper and lower ends of the box door are each provided with a slide rail, and the slide rails are T-shaped slide rails. The lighting system can be opened or closed automatically, so that the household anti-theft electric meter box is safer and more reliable in use.

The invention provides a novel agricultural plant protecting vehicle, relates to the field of agricultural machinery. The novel agricultural plant protecting vehicle comprises a first wheel, a second wheel, a vehicle body, a pesticide sprinkling device and a driving control device. Radial directions of the first wheel and the second wheel are in the same plane, and the first wheel and the second wheel are connected with the vehicle body. The pesticide sprinkling device comprises a sprinkling rod connected with the vehicle body, the sprinkling rod is perpendicular to the line of centers of the first wheel and the second wheel and symmetrically arranged along the line, the sprinkling rod is provided with a nozzle and at least two winds, and the winds are symmetrically arranged along the center of the sprinkling rod. The novel agricultural plant protecting vehicle has two wheels, is simple in structure, convenient to turn, strong in trafficability in farmland, and only leaves one mark in the farmland after passing the farmland with less damages to crops.

The invention relates to the technical field of mechanical equipment, in particular to a novel rice polishing machine. By the novel rice polishing machine, the polishing effect of rice is improved, the polishing yield of rice is improved, the damage amount of rice is increased, the purification treatment of rice is facilitated, the diversity of equipment functions is improved, and the practicability and reliability are improved by carrying out integrated polishing treatment on rice. The novel rice polishing machine comprises a guiding device, a polishing device, a power device, a wetting device, a separating device and a discharging device. The guiding device comprises a working bin, a first support, a screen barrel, a feeding bin, a first belt pulley, a transmission shaft, spiral blades and a second support. The lower side of the working bin is conical, and a first cavity is formed in the working bin; the outer side of the bottom end of the working bin is connected with the top end ofthe first support; the screen barrel is cylindrical, and a plurality of groups of screen holes are uniformly formed in the outer wall of the screen barrel; the right end of the screen barrel is hermetically connected with the upper side of the right end of the first cavity; and the left end of the screen barrel is in sealing connection with the upper side of the left end of the first cavity.

The invention discloses a ceramic sanitary ware finished product grading automatic pipeline system. The ceramic sanitary ware finished product grading automatic pipeline system comprises a finished product feeding boosting arm, a conveying system and a discharging boosting arm, wherein an appearance detecting workstation, a vacuum missing detecting machine, a fitting mounting detecting and blow-drying workstation, an overturning detecting and repairing device, a laser marking and casing device and an automatic packaging machine are sequentially arranged on the conveying system; the conveying system comprises a feeding section, a conveying section, a detecting and repairing section, a finished product guiding and conveying section, an elevating and casing section and a discharging and packaging section; the appearance detecting workstation is arranged on the feeding section; the vacuum missing detecting machine and the fitting mounting detecting and blow-drying workstation are arranged on the conveying section; the overturning detecting and repairing device is arranged on the detecting and repairing section; the laser marking and casing device is arranged on the elevating and casing section; and the automatic packaging machine is arranged on the discharging and packaging section. Compared with the prior art, the ceramic sanitary ware finished product grading automatic pipeline system has the advantages of labor saving, breakage rate reduction, small occupied land, clean and dust-free environment, and easiness in field management.

The invention discloses a crack-resistant concrete structure and a construction method thereof, and belongs to the field of concrete structures. According to the crack-resistant concrete structure andthe construction method thereof, the situation that when concrete has signs of cracking, the parts, near cracks, of pre-fracture points can be subjected to relatively large force, and the adjacent pre-rupture points are broken can be realized, internal repair fluid conveniently flows out, then the cracks are repaired and bonded, and the further enlargement of the cracks is effectively suppressed;meanwhile, under the action of multi-branch drawing wires, concrete exhibits tensile properties in the longitudinal direction, after cracking, the concrete can show mutual drag in the longitudinal direction, and the role of enlarging the cracks is further played; and meanwhile, even if the concrete cracks are large, concrete fragments are generated, and under the action of the multi-branch drawing wires, the concrete fragments are difficult to fall and can still be connected to the crack-resistant concrete structure, so that the possibility of injuring workers due to fallen concrete blocks due to cracking is effectively reduced, the safety is improved, and the potential safety hazards are effectively reduced.

The invention belongs to the technical field of stainless steel product treatment equipment, and relates to an electrothermic type stainless steel product automatic drying device. Heat produced through heating pipes is rapidly transferred to the surface of a to-be-dried stainless steel product through a blower. The main structure of the automatic drying device comprises a conveying belt, a heat dissipation preventing cover plate, heating pipe fixing frames, an air guide pipe, the heating pipes, a power distribution control cabinet, a base, a blower motor, a transmission motor, a power transmission chain, a transmission shaft, a conveying belt chain and the like. The long-strip-shaped heating pipe fixing frames are fixedly arranged on the upper portions of the inner surfaces of a front plate body and a rear plate body of the heat dissipation preventing cover plate correspondingly; the multiple long-strip-shaped heating pipes are fixedly arranged between the two heating pipe fixing frames at equal intervals; and the stainless steel product is dried through the heat produced by the heating pipes. According to the electrothermic type stainless steel product automatic drying device, the main structure of the automatic drying device is simple, the design concept is ingenious, the material is effectively protected, collision damage to the material is reduced, meanwhile, the two faces of the material are heated through the blower, the drying time is saved, the application environment is friendly, and the market prospect is wide.

The invention discloses a clean cultivation method for strawberries. The clean cultivation method includes the steps of S1, variety selection and seedling cultivation; S2, land selection; S3, making of strawberry furrows; S4, planting of the strawberries; S5, plastic film covering; S6, shed management; S7, plant management; S8, pollination; S9, flowers and fruits thinning; S10, harvesting. In themethod, black plastic films and non-woven fabric are involved; contact of bases of the strawberries and soil is reduced through the cultivation mode, functions in abrasion resistance, bruising reduction and shock prevention can be achieved, damage rate of the fruits is reduced, breeding of microorganisms is effectively reduced, and clean production level of the strawberries is improved; the cultivation method is scientific and efficient, the strawberries are safe and hygienic through standardized field planting and effective management, yield is increased, and economic benefits of strawberry growers are improved.

The invention provides a fruit tree bagging mechanical arm and belongs to the technical field of fruit tree production machines. The fruit tree bagging mechanical arm is used for conducting bagging operation on fruits on fruit trees on the ground. According to the technical scheme, the fruit tree bagging mechanical arm is composed of a handle, a power handle, a box body, a gear transmission device and a mouth closing device. The gear transmission device and the mouth closing device are installed on the side face and the upper end of the box body respectively. When the fruit tree bagging mechanical arm is used, the gear transmission device is pulled by the power handle to rotate, the gear transmission device drives the mouth closing device to conduct mouth closing action, a mouth closing arm bags the fruits, and then the overhead fruits at different heights are bagged on the ground. According to the fruit tree bagging mechanical arm, the function that the fruits on the high fruit trees are bagged on the ground is achieved, the safety coefficient of a user is increased, the labor intensity is relieved, efficiency is improved, and the probability of the situation that branches of the fruit trees are damaged is reduced. The fruit tree bagging mechanical arm is an innovation in the field of fruit tree production machines, fruit tree bagging operation becomes mechanical from manual, the economic benefits and the social benefits are quite remarkable, and the application and popularization value is quite high.

The invention discloses auxiliary replacing equipment for baby diapers. The auxiliary replacing equipment for the baby diapers comprises a base, limiting plates, a supporting base and a baby diaper bearing cushion. The base is rectangular, the supporting base is fixedly arranged at the center of the upper surface of the base, the limiting plates are arranged on two short side edges of the upper surface of the base, and the baby diaper bearing cushion is attached to the outer side of the supporting base. The baby diapers can be replaced quickly through a simple mechanical principle, the baby diapers are flattened on the upper surface of the baby diaper bearing cushion according to needs in the using process, then a baby is made to straddle on the baby diaper bearing cushion so that the baby diapers can be replaced conveniently, and the operating steps are simplified. According to the auxiliary replacing equipment, the limiting plates are movably connected through locating grooves formed in the base, the positions of limiting blocks can be adjusted according to the sizes of the baby diapers of different types, and thus the baby diapers placed on the baby diaper bearing cushion are not likely to slip.

The invention discloses a leaning type safe light and convenient vehicle for people to pick and husk Chinese chestnuts. The leaning type safe light and convenient vehicle for people to pick and husk the Chinese chestnuts comprises a leaning type movable mechanism, a husking mechanism, a flexible telescopic gliding module, a wrapping type telescopic grabbing and picking mechanism and a detachable loading vehicle, wherein the husking mechanism is arranged on the leaning type movable mechanism; the wrapping type telescopic grabbing and picking mechanism is arranged on the leaning type movable mechanism; one end of the flexible telescopic gliding module is arranged on the wrapping type telescopic grabbing and picking mechanism; the other end of the flexible telescopic gliding module is arranged on the husking mechanism; and the detachable loading vehicle is detachably arranged at the rear end of the leaning type movable mechanism. The invention belongs to the field of farm tools, particularly, by the leaning type safe light and convenient vehicle for people to pick and husk the Chinese chestnut, the practicality is high, people pick the Chinese chestnuts comfortably, the working efficiency is improved, the labor intensity is reduced, the problems that people who pick the Chinese chestnuts easily suffer from cervical diseases when looking up to observe the Chinese chestnuts, and theChinese chestnuts are difficult to pick due to over-high Chinese chestnut trees are solved, and husks of the Chinese chestnuts are automatically and nondestructively removed.

The invention relates to a door and discloses a child protective door, comprising a door body. One side of the door body is hinged to a door frame. A door leaf is hinged to one side, far away from a door frame hinging point, of the door body, a torsion spring is arranged at a door leaf hinging point, the door leaf is provided with a rubber protective cover used for covering a door handle, the rubber protective cover is provided with an opening, the upper portion of the door body is provided with a cavity, a retaining plate is slidably connected in the cavity, and a fan is disposed in the cavity. The child protective door allowing less crush injury of children is provided to solve the problem that an existing door may cause crush injury to children when they are running.

The invention belongs to the field of protective film production equipment and discloses a transfer protective film punching and laminating mold, a punching and laminating machine and a punching and laminating combination method. The punching and laminating mold comprises an upper mold and a lower mold which are matched. The upper mold comprises an upper mold plate, locating pins and punch needles, wherein the locating pins and the punch needles are arranged on the upper mold plate; the punch needles are arrayed in the middle of the upper mold plate. Each punch needle is of a columnar structure. The front end of each punch needle is shrunk inwards in a step mode to form a boss. The front end of each locating pin is in a pointed cone shape, and the main body of each locating pin is of a cylindrical pin body structure. The lower mold comprises a lower mold plate. Punch holes matched with the punch needles and locating holes matched with the locating pins are formed in the lower mold plate. Each punch hole is gradually shrunk from the punching surface to the back surface and is of a conical hole structure. The punching and laminating mold provided by the invention is simple and reasonable in structure, capable of completing the punching and laminating process at a time, high in operating efficiency, high in punching and laminating precision, small in abrasion to the punch needlesand good in using effect and reduces the labor intensity and labor time.

An adsorption-type sucking and massaging device for skin is composed of a cup with an opening for attaching the cup onto the skin of a user, an aspirator on said cup for sucking air from the cavity of cup, an air releasing unit on said cup for releasing air from outside of cup in inside of cup, a vibrator on said cup, a pressure switch or timer, and a controller in a control box.

The invention discloses a three-sided drilling and tapping machine for a wiper motor gearbox. The three-sided drilling and tapping machine comprises a machine tool rack. Main shaft boxes are perpendicularly distributed on the machine tool rack in three directions and connected with motors and pneumatic feeding mechanisms of the main shaft boxes. The motors and the pneumatic feeding mechanisms are connected with an electronic control cabinet. The electronic control cabinet is connected with an operating console and a CNC system. Main shafts are arranged in the main shaft boxes. Each main shaft is provided with multiple small shaft heads. The motors drive the main shafts to rotate through transmission mechanisms. The pneumatic feeding mechanisms control the main shaft boxes to be fed forwards and backwards relative to the motor gearbox, and the small shaft heads are driven by multiple gear transmission mechanisms to rotate in the main shafts. A cooling distribution system is arranged above the main shafts. An inclined chip groove is formed in the lower end face of the machine tool rack. A cooling pump system is arranged at the tail end of the chip groove. A workpiece locking mechanism is arranged on the machine tool rack in another direction. The three-sided drilling and tapping machine can conduct drilling and tapping on three surfaces of the gearbox at the same time, in this way, the production efficiency is high, the position precision of the workpiece is high, and the manufacturing cost is low.