1307 results about "Circular saw" patented technology

The invention relates to the technical field of wood cutting equipment, in particular to wood cutting equipment for recombined wood processing, which comprises a rack, a three-axis moving platform is mounted at the top of the rack, an electric rotating rod is arranged on the three-axis moving platform, and a circular electric saw is mounted on the electric rotating rod. A plurality of sets of mounting plates are evenly connected to the machine frame at intervals from front to back, the number of each set of mounting plates is two, each mounting plate is provided with a rod frame capable of ascending and descending, the top of each rod frame is connected with a supporting plate used for supporting a wood board, and a left pressing tool and a right pressing tool are hinged between the two mounting plates in each set. By arranging the multiple sets of rod frames, the supporting plates and the pressing tools, sufficient supporting and fixing can be provided for a wood board, the pressing blocks can synchronously move front and back along with the circular electric saw, the pressing blocks move to push the rod frames to move downwards one by one so as to drive the supporting plates to move downwards to avoid the circular electric saw, and the rod frames move downwards to pull the pressing tools to swing through the connecting plates to be separated from the wood board so as to avoid the circular electric saw; and the stability and the accuracy in the cutting process are ensured.

The invention relates to the technical field of electric tools, in particular to a high-stability electric circular saw base which comprises a main machine shell, a lateral protective cover is movably assembled on the side wall of the main machine shell, an electric control type cutting circular saw is installed on the side wall of the main machine shell and located in the lateral protective cover, and a lateral stability adjusting base is arranged on one side of the main machine shell. And a side hanging type dust collecting box is mounted on the side wall of the lateral stable adjusting seat. According to the high-stability machine base for the electric circular saw, the lateral stability adjusting base is arranged on one side of the main machine shell, the position of the whole electric circular saw is limited through the lateral stability adjusting base, and therefore the stability of the electric circular saw in the mounting and cutting process is improved, and operation is convenient; the embedded overhead guide rail with the built-in electric control lead screw is fixedly assembled on the upper surface of the lateral stability adjusting seat, the electric control lead screw is directly connected with the main machine shell and is controlled, and storage and unfolding are convenient.

The invention discloses pipe cutting equipment for aluminum profile machining, and relates to the technical field of aluminum profile machining, the pipe cutting equipment comprises a machining case, an outer case is fixedly mounted on the outer wall of the side face of the machining case, a controller is arranged at the top of the outer case, and a chip removal adsorption assembly is placed in the outer case; a circular saw cutting assembly, a machine tool plate, a firmware assembly and a discharging cleaning assembly are arranged in the machining case. Through the arrangement of a discharging sweeping assembly, a scrap removing and adsorbing assembly and other structures, a scraper blade scrapes scraps and formed materials in the cutting process along the surface of a machine tool plate, the scraps and the formed materials fall onto the surface of a filter plate to be separated, meanwhile, the scraps can be adsorbed into a dust box along a dust suction opening and a connecting pipe, and the dust is removed. And therefore, chippings and materials are separated while the surface of the machine tool plate is conveniently cleaned, the thin-wall aluminum pipe is prevented from being adsorbed into the dust box by the chipping removal adsorption assembly, then the later sorting work is avoided, and the influence on the surface quality of the pipe is reduced.

A circular saw includes a blade guard and a saw blade at least partially enclosed within the blade guard. The saw blade has an outer diameter that is greater than 6 inches. The circular saw further includes a motor housing coupled to the blade guard, a brushless electric motor supported within the motor housing, and a battery pack for providing power to the brushless electric motor.

The invention relates to the field of metal water pipe machining equipment, and discloses automatic production and machining equipment for bathroom metal water pipes, which comprises a machining table, a back plate is fixedly mounted on the rear side of the top end of the machining table, a movable table is movably mounted on one side of the front end of the back plate through a guide rail, and an upper sliding table is movably mounted on the upper side of the front end of the movable table; the four corners of the bottom end of the upper sliding table are connected to the four corners of the top end of the lower sliding table through reset springs, a cutting shaft is movably installed at one end of the lower sliding table, a cutting circular saw is fixedly installed at the outer side end of the cutting shaft, and a transmission shaft is movably installed in the middle of the interior of the lower sliding table. Through innovative designs such as multi-shaft transmission, dynamic synchronization, vibration cutting and magnetic polishing, automation, high precision and high efficiency of bathroom metal water pipe production are achieved, the finished product quality and the production efficiency are remarkably improved, meanwhile, the labor cost and energy consumption are reduced, and the production line is suitable for large-scale bathroom pipe machining scenes.

The invention discloses a hot-rolled pickled steel plate for a saw blade and a manufacturing method of the hot-rolled pickled steel plate. The technical problems that existing high-carbon and high-manganese steel with the thickness of 2.5-7.0 mm for the saw blade is prone to segregation, poor in structure uniformity and thick and large in pearlite structure are mainly solved. According to the technical scheme, the hot-rolled pickled steel plate for the saw blade comprises the following chemical components in percentage by weight: 0.75%-0.85% of C, 0.20%-0.50% of Si, 0.20%-0.50% of Mn, less than or equal to 0.020% of P, less than or equal to 0.005% of S, 0.01%-0.02% of Al, less than or equal to 0.0060% of N, 0.4%-0.8% of Cr, 0.18%-0.28% of V and the balance of Fe and inevitable impurity elements. The metallographic structure of the hot-rolled pickled steel plate is superfine pearlite with the interlamellar spacing of 0.4-0.8 mu m, and the hot-rolled pickled steel plate is used for production of circular saw webs, chain saws, frame saws and the like.

The invention discloses a saw cutting device for building construction plates, and belongs to the technical field of circular saw blade sawing machines, the saw cutting device comprises a saw cutting seat, the top of the saw cutting seat is fixedly connected with a cutting workbench, the top of the cutting workbench is slidably connected with a clamping frame, a clamping piece is installed in the clamping frame, the clamping piece comprises a clamping plate, and the clamping plate is fixedly connected with the cutting workbench. A dust sweeping piece and a dust removal piece are installed at the left end and the right end of the clamping frame correspondingly, the dust sweeping piece comprises a dust sweeping brush, the dust removal piece comprises a transparent protection shell, the guiding and conveying plate can drive the clamping frame to move, and a dust collection box is installed in the sawing base; according to the cutting device, a to-be-cut plate can be automatically clamped and automatically guided to the sawing disc for cutting operation, time and labor are saved, on one hand, the transparent protection shell can shield splashing chippings in the cutting process, the protection effect is good, on the other hand, the chippings can be absorbed and guided into the dust collection box, and the cutting efficiency is improved. The technical effect of automatically and rapidly cleaning the chippings is achieved.

The invention discloses a double-arm citrus picking robot and a picking method, and belongs to the technical field of agricultural automation equipment. The robot comprises a crawler-type moving chassis, a symmetrically-arranged double-mechanical-arm system, a machine vision system, a citrus collecting bin and a control system. The double-mechanical-arm system adopts a main and auxiliary collaborative framework, the tail end of a main mechanical arm is integrated with a clamping jaw and vacuum suction disc parallel mechanism, an auxiliary mechanical arm is provided with a rotary circular saw blade, and lossless clamping of fruits and precise cutting of fruit stems are achieved. The machine vision system realizes high-precision citrus identification under complex illumination by improving a YOLOv5 network and fusing an HSV dynamic threshold value and Focal Loss optimization; graded path planning is combined with an A * algorithm and an RRT * algorithm, and motion safety of the mechanical arm is ensured through bounding box collision detection. The picking method comprises the steps of three-dimensional semantic map construction, collaborative grabbing and cutting, lossless transfer and the like. The problems that a single-arm robot is low in efficiency, fruits are prone to being damaged, fruit stems are not thoroughly treated and the like are solved, and the robot is suitable for automatic orchard harvesting in hilly areas.

A guided circular saw system having a track and a ramp that is connected to a benchtop by a pair of hinge members. Hinge members are formed of a top section, a middle section and a bottom section and facilitate raising and lowering of the track in a quick and easy manner without tools. The track is raised to facilitate placing a workpiece under the track and then the track is lowered in place thereby engaging and holding the workpiece in place. A sled attached to a cutting device and the sled and cutting device slides along the track thereby cutting the workpiece. The track includes sacrificial grip strips that extend along the sides of the track and include an upper layer of material that is rigid and a lower layer of material that is compressible and has a high coefficient of friction and thereby holds the workpiece in place.

The utility model relates to a profile cutting device for photovoltaic support machining. Comprising an installation rack provided with an operation table, and a circular saw cutting assembly and a profile positioning assembly are installed on the operation table; a feeding clamping assembly and a lead screw driving assembly are arranged on one side of the sectional material positioning assembly. A discharging clamping assembly and a discharging transverse moving assembly are arranged on the other side of the sectional material positioning assembly. The device further comprises a transferring assembly located below the discharging clamping assembly. The transferring assembly comprises two sets of sliding table cylinder bases, a transferring sliding table air cylinder is installed between the two sets of sliding table cylinder bases, a transferring installation base is installed on a moving sliding table of the transferring sliding table air cylinder, and the transferring assembly further comprises two sets of transferring brackets installed on the transferring installation base. And each transferring bracket is provided with a sectional material guide strip matched with the sectional material. According to the cutting device, continuous fixed-length cutting of profiles can be achieved, the cutting precision is high, meanwhile, cut profile sections can be transferred to the side, workers can conveniently conduct discharging operation, and the working efficiency of the cutting device is improved.

The utility model discloses saw blade base body heat treatment equipment which comprises a furnace body, a furnace chamber is arranged in the furnace body, a movable door is arranged on the side wall of the furnace body, a plurality of electric radiant tubes are symmetrically arranged on the inner wall of the furnace chamber corresponding to the two sides of the movable door respectively, and the saw blade base body heat treatment equipment comprises a base arranged at the bottom of the furnace body and matched with the bottom of the furnace body in a sliding mode. A supporting seat for placing batch circular saw blades is arranged at the bottom of the furnace chamber, a first annular tooth group is arranged on the outer wall of the furnace body, a driving motor connected with the base is arranged on the adjacent side of the furnace body, a first transmission gear meshed with the first annular tooth group is arranged on an output shaft of the driving motor, and the supporting seat is rotationally connected with the base; and the supporting seat can rotate in different directions relative to the furnace body. The saw blade heat treatment device has the advantages of being capable of conducting uniform and stable heat treatment on the saw blade, guaranteeing a better heat treatment effect on the saw blade and the like.

The invention relates to the field of metal cutting, and particularly discloses a horizontal pushing type feeding full-automatic numerical control circular sawing machine which comprises a machining table, a conveying plate for automatically conveying materials is arranged on the machining table, a clamping assembly is arranged on the machining table, a pushing assembly is arranged on the machining table, and a sawing assembly is arranged on the pushing assembly. A sliding assembly is arranged on the machining table. In the sawing process of materials, the advancing and retreating effects of the device are ingeniously utilized, so that the device forms a multi-form mode, the material receiving and discharging functions are achieved, effective transition of the materials from equipment to a collecting area is achieved, gravitational potential energy of the materials is converted, the materials are smoothly discharged, and free falling of the materials is avoided; materials are prevented from being impacted and damaged, the quality of the materials is improved, the yield of the materials is increased, the automatic discharging effect of the device is achieved, the full-automatic effect of the device is improved, the intellectualization of the device is improved, and the market competitiveness of enterprises is facilitated.

The invention discloses a wire harness assembly cutting device, and relates to the technical field of cutting devices.The wire harness assembly cutting device comprises an outer frame, a lifting device is arranged at the top of the outer frame, a circular saw cutting machine is arranged at the moving end of the lifting device, a wire drawing device is arranged on the outer frame, and the wire drawing device comprises a fixing plate, a wire drawing device body and a wire drawing device body; the fixing plate is fixedly mounted on the surface of the outer frame, and a sliding rail is arranged on the surface of the fixing plate; the linear driving device is arranged on the inner wall of the fixing plate; the sliding platform is in threaded connection with the output end of the linear driving device, and the bottom of the sliding platform is in sliding connection with the sliding rail; the clamping blocks and the conveying rollers are matched to pull the wire harness, different cutting requirements can be met, the wire harness can be prevented from deviating due to tangential force of the circular saw cutting machine in the cutting process, and it is guaranteed that follow-up cutting is conducted smoothly.

A circular saw includes a support surface for a workpiece and which has a saw blade slot, a main drive motor arranged below the support surface for driving a saw blade in rotational movement, and a saw blade holder connected to the main drive motor for the purpose of transmitting the rotational movement A height-adjustment apparatus, with a height actuator and a transmission element coupled to the saw blade holder are arranged to set the spacing between a saw blade holder and the support surface An electronic interface provides the input of a saw blade projection. A protection apparatus is connected by signals to a monitoring apparatus and the height actuator and is adapted to activate the height actuator for quick lowering of the saw blade holder when a dangerous situation is recorded by the monitoring apparatus.

A slab processing machine includes a work table, a machining head, and at least one drive mechanism. The machining head mounts a circular saw blade for respective cutting of a stone or stone-like slab positioned on the work table with a finished face of the slab down on vacuum pods. A controller operates the machining head to rotate the machining head on the A-axis and bevel cut the slab while positioned upside down with the finished face down on the vacuum pods.

The utility model discloses a circular saw which comprises a first motor comprising a first driving shaft rotating around a first axis; a second motor; comprising a second drive shaft rotating about a second axis; the power transmission mechanism transmits power of at least one of the first motor and the second motor to the output shaft; torque of the first driving shaft and the second driving shaft is output through the output shaft. The bottom plate is movably connected with the main machine shell, and a bottom plate bottom surface in contact with a workpiece is formed on the bottom plate; in the extending direction perpendicular to the cutting piece, the projection of the gravity center of the circular saw is located between the rear edge of the bottom plate and the output axis. The electric tool is driven by two motors in a matched mode, and a user can use the tool more comfortably.

The invention discloses a cold cutting flying saw machine which comprises a cold cutting table, a bottom table and a cuttings collecting bin, in the using process of the cold cutting flying saw machine, air in an inner cavity of a non-slip convex pad is exhausted and then is completely flattened, so that the contact between the non-slip convex pad part and the bottom of a plate workpiece is enlarged, and the cutting efficiency is improved. Meanwhile, the surface roughness of the non-slip convex pad area can be improved through the arrangement mode of multiple holes in the surface of the non-slip convex pad, so that the sliding problem possibly occurring in the cold cutting machining process of the plate workpiece is avoided, and a hydraulic telescopic rod drives a keeping ball part to move to be close to the side face of the high-speed steel circular saw blade; then the keeping balls are slightly attached to the surface of the high-speed steel circular saw blade so that the vertical state keeping function of the high-speed steel circular saw blade in the cold cutting process can be achieved, meanwhile, due to the fact that the triangular mounting frame is provided with multiple sets of end points, the high-speed steel circular saw blade can be laterally subjected to multi-point synchronous calibration supporting, and the stability of the high-speed steel circular saw blade in the cutting and milling process is further improved; the service life of the high-speed steel circular saw blade is ensured.

The invention discloses a synchronous feeding device and method of a continuous machining type circular saw, and relates to the technical field of circular saw cutting. Comprising a machine body, a circular saw mechanism is installed behind the bottom of the left side of an inner cavity of the machine body, two bottom frames are fixed to the left side and the right side of the bottom of the inner cavity of the machine body and slidably connected with a feeding frame through rolling shafts, a gear ring is fixed to the outer side of the right side of the feeding frame, and the outer end of the gear ring is in meshed connection with a fluted disc; the fluted disc is installed at the bottom of an inner cavity of the machine body through a first motor, and a plurality of discharging grooves are transversely formed in the inner side of the feeding frame in a penetrating mode. Through cooperation of the bottom frame, the feeding frame, the fluted disc and the fixing assembly, alternate feeding is completed, and meanwhile a base material at the cutting position is clamped and fixed to complete discharging; and through cooperation of the feeding frame, the adjusting assembly, the second motor and the pin rollers, accurate pushing of the blanking size of the base material is synchronously carried out while alternate feeding and blanking are completed.

The invention discloses an automatic saw blade replacing mechanism for an edge sawing machine, and relates to the technical field of edge sawing machines, the automatic saw blade replacing mechanism comprises a bottom plate, a mounting motor is fixedly connected to the edge of one side of the upper surface of the bottom plate, a fixing plate is fixedly connected to the edge of the other side of the upper surface of the bottom plate, and a mounting plate is fixedly connected to the position, close to the fixing plate, of the upper surface of the bottom plate; a mounting plate is fixedly connected to one side of the bottom plate, a storage cylinder is fixedly connected to one side of the mounting plate, a plurality of new circular saw blades are arranged in the storage cylinder, a sliding rail plate is fixedly connected to the upper surface of the bottom plate, a stop plate is fixedly connected to one side of the storage cylinder, and a discharging seam is formed in the position, under the storage cylinder, of the upper surface of the bottom plate. According to the automatic saw blade replacing mechanism for the edge sawing machine, the mounting mechanism is designed for dismounting the saw blade, the cleaning mechanism is designed for cleaning the saw blade, the mechanical arm mechanism is designed for replacing the saw blade, dismounting, cleaning and saw blade replacing are conducted at the same time, and the effects of rapidly replacing the saw blade and saving time are achieved.

The invention discloses a circular saw blade base body provided with a vibration reduction inner cavity and a method, solves the problem that the rigidity of a saw blade is reduced due to the arrangement of a vibration reduction groove of the saw blade in the prior art, and has the beneficial effects of effectively absorbing vibration and improving the rigidity of the saw blade. Comprising a first saw blade body and a second saw blade body, the inner side face of the first saw blade body is connected with the inner side face of the second saw blade body, and a damping groove is formed in the inner side face of at least one of the first saw blade body and the second saw blade body so that a circular saw blade base body can be provided with a damping inner cavity; the depth of the vibration reduction grooves is smaller than the thickness of the first saw blade body or the second saw blade body, and when the first saw blade body and the second saw blade body are provided with the vibration reduction grooves, the shapes of the vibration reduction grooves are the same or different, and the arrangement modes of the vibration reduction grooves are the same or different. The first saw blade body and the second saw blade body are both provided with vibration reduction grooves, and when the first saw blade body and the second saw blade body are in butt joint, the vibration reduction grooves are arranged in a staggered mode.

The utility model relates to a section steel hot sawing machine which comprises a cutting table, a circular saw blade, a motor for driving the circular saw blade to rotate, a rack, a dust cover and a cooling water device. The dustproof cover covers the outer side of the circular saw blade, and the bottom end of the dustproof cover is open; the cooling water device comprises a nozzle arranged in the dust cover and used for cooling the circular saw blade, a cooling water tank fixedly arranged on the lower portion of the rack and located below the open end of the dust cover, and a water conveying pipe set arranged between the nozzle and the cooling water tank in a communicating mode. The number of the nozzles is two, the two nozzles are the upper nozzle and the lower nozzle respectively, the two nozzles are located on the two sides of the circular saw blade in the axial direction respectively, the upper nozzle inclines inwards and upwards, and the lower nozzle inclines inwards and downwards. The upper nozzle and the lower nozzle are matched together, so that all-directional dead-corner-free scouring of sawteeth of the circular saw blade can be realized, a good cooling effect on the circular saw blade is achieved, residues of saw dust on the circular saw blade are avoided, and the subsequent use effect of the circular saw blade is guaranteed.

The invention discloses a circular saw which comprises a first motor comprising a first driving shaft rotating around a first axis; a second motor; comprising a second drive shaft rotating about a second axis; the second driving shaft and the first driving shaft are coaxially arranged; the first motor and the second motor are mechanically coupled; the motor diameter of the first motor is smaller than or equal to 70 mm, and the motor diameter of the second motor is smaller than or equal to 70 mm. The power transmission mechanism transmits power of at least one of the first motor and the second motor to the output shaft; the power transmission mechanism comprises a transmission assembly, and the transmission assembly at least comprises a speed reducing mechanism. The bottom plate is movably connected with the main machine shell, and a bottom plate bottom face making contact with a workpiece is formed on the bottom plate. The electric tool is driven by the two motors in a matched mode, and the motor size layout is more reasonable.

A dust collection attachment is to be positioned between a side of a blade guard and a support base of a circular saw assembly. The dust collection attachment is for coupling with a vacuum source to remove debris drawn into the dust collection attachment. The dust collection attachment includes an elongated front face for filling space between the side of the blade guard and the support base, a top edge to extend along the side of the blade guard, a bottom edge to extend along the support base, and defines an opening for receiving the debris drawn into the dust collection attachment. The dust collection attachment also includes an extension of the elongated front face and a connection opposite the opening. The dust collection attachment further includes a passageway defined through the dust collection attachment from the opening at the elongated front face to the connection opposite the opening.

The invention discloses an automatic profile cutting device, and particularly relates to a circular saw blade cutting device which comprises a moving end used for bearing a circular saw blade, and the moving end is driven to move and drives the circular saw blade to conduct cutting; the driving protection assembly comprises a moving frame connected to the moving end in a sliding mode, and a saw blade rotating shaft for fixing the circular saw blade is rotationally connected into the moving frame; and the movable frame moves towards the movable end along with the increase of the cutting resistance of the circular saw blade. When the moving end moves to drive the circular saw blade to cut, and the cutting edge is passivated or the feeding speed is too high, the resistance borne by the circular saw blade is increased, and at the moment, the moving frame carries the rotating circular saw blade to move to compensate the feeding distance of the moving end, so that the resistance borne by the circular saw blade is reduced, the conditions of distortion and tipping are reduced, and the service life of the circular saw blade is prolonged. The service life of the circular saw blade is prolonged.

The invention discloses an electric tool with an adjustable handle, belongs to the field of electric tools, and solves the problem that the difficulty of wall-leaning cutting operation of an existing electric circular saw is large. According to the technical scheme, the electric tool mainly comprises a machine shell and the handle, the machine shell is provided with a circular saw blade and a driver, and a positioning groove is formed in the connecting position of the machine shell and the handle; a positioning lock matched with the positioning groove is arranged in the handle, the positioning groove comprises a first groove enabling the handle to be positioned at the first position and a second groove enabling the handle to be positioned at the second position, a first reset piece is arranged in the handle, and the first reset piece enables the positioning lock to have the movement trend of being positioned in the first groove or the second groove. The positioning lock is provided with an operation part extending out of the surface of the handle, and the operation part drives the positioning lock to be switched between the first groove and the second groove. The device is mainly used for reducing the difficulty of wall-leaning cutting operation of the electric circular saw.

The invention discloses a cutting device for composite keel forming production, and belongs to the technical field of composite keel production. Comprising a rack, a conveying mechanism is installed on the upper surface of the rack, a dust cover is arranged above the inner wall of the rack, a second motor is connected to the front face of the dust cover through bolts, a rotating rod is fixedly connected to the output end of the second motor, and a circular saw blade is fixedly arranged on the outer side of the rotating rod in a sleeving mode; and the circular saw blade is rotationally connected to the interior of the dustproof cover through a rotating rod. According to the cutting device for composite keel forming production, cutting resistance can be adjusted in a self-adaptive mode, the cooling and dust removing range can be dynamically adapted, keels of multiple specifications are compatible, a circular saw blade moves to be synchronously linked with a spray head during cutting, swing of the spray head within the range of size is achieved through meshing switching of intermittent double racks and gears, chatter of the saw blade is restrained through cooperation with a friction ring, and notch defects are reduced; and the cylinder drives the component to translate to ensure that each mechanism adapts to the keels of multiple specifications, so that the cutting precision and efficiency are improved.

The utility model discloses a metal packaging box plain end numerical control disk saw machine tool, which belongs to the technical field of sawing machines and comprises a machining table, supporting seats are mounted on two sides of the machining table, through grooves are formed in the supporting seats, hydraulic cylinders are mounted in inner cavities of the through grooves, piston ends of the hydraulic cylinders are fixedly connected with supporting frames, and the supporting frames are fixedly connected with the machining table. Through cooperation of the first moving assembly and the second moving assembly, the circular saw blade can be conveniently driven to move, meanwhile, the position of an object can be conveniently adjusted, manual adjustment work of a worker on the cut object is replaced, automatic operation is achieved, the object cutting speed is increased, and the working efficiency is improved. And meanwhile, the cutting accuracy of the circular saw blade on the object is improved, water in a water tank can be conveyed into a spraying pipe through a hose by arranging a water pump, the cooling and dust falling effects are provided when the circular saw blade cuts the object, and baffles are installed on the two sides of the machining table, so that the splashing preventing effect can be provided when the circular saw blade cuts the object.

The utility model relates to the technical field of steel pipe circular sawing machines, in particular to a steel pipe circular sawing machine. The steel pipe circular sawing machine comprises a workbench, a mounting groove is formed in the top of the workbench in a penetrating mode, groove wheels are evenly arranged in the mounting groove through a rotating shaft, two sets of guide holes are evenly formed in the top of the workbench in a penetrating mode, second connecting rods are arranged in the guide holes, and pressing plates are arranged at the tops of the two sets of second connecting rods. The pressing plate is located above the workbench, the bottoms of the two sets of second connecting rods penetrate through guide holes and are connected with a connecting plate, and two sets of springs are evenly arranged between the top of the connecting plate and the bottom of the workbench; when a steel pipe is subjected to circular sawing, a worker steps on the pedal frame to drive the pressing plate to move downwards to clamp and fix the steel pipe, so that the stability of the steel pipe during circular sawing is guaranteed, and the worker can quickly complete fixing and circular sawing of the steel pipe through mutual cooperation of hands and feet.

The utility model relates to the technical field of circular saw cutting machines, in particular to a circular saw cutting machine capable of cutting a plurality of bars simultaneously, which comprises a workbench, one end of the workbench is fixedly connected with a support, and a cutting mechanism used for cutting the bars is arranged at the top of the support. A plurality of sets of fixing mechanisms used for fixing bars are arranged at the top of the workbench. The fixing mechanism comprises two supports which are symmetrically arranged, two rotating shafts are rotatably mounted in the supports, and clamping plates used for clamping bars are fixedly connected to the exteriors of the two rotating shafts; bars can be clamped and fixed, rolling of the bars is avoided, the flatness of bar notches and the accuracy of cutting positions are improved, the cutting quality and precision of equipment are improved, the included angle between the two clamping plates can be adjusted through the supporting rods, the equipment can conveniently fix the bars with different diameters in cooperation with the pressing blocks, and the working efficiency is improved. And the application range of equipment is expanded.

This patent provides a liftable self-storing branch pruning machine with a high degree of automation, scientific and accurate branch pruning, and automatic graded recovery of pruned branches. The machine comprises a supporting base, a multi-stage hydraulic telescopic device, a horizontal slide, and a pruning device. A storage box is arranged on the supporting base, and the bottom machine base of the multi-stage hydraulic telescopic device is arranged on the supporting base, and the machine base of the multi-stage hydraulic telescopic device is connected to a steering drive device; the first-stage telescopic rod at the top of the multi-stage hydraulic telescopic device and the horizontal slide, and the pruning device is arranged on the horizontal slide; the pruning device comprises a support, a clamping device, and a circular saw that is driven by a sawing motor to rotate to cut off branches, and a front top plate that can swing relative to the support is arranged on the other side of the support.