CN111301039B - Cylindrical engraving machine with adjustable gantry height - Google Patents

Cylindrical engraving machine with adjustable gantry height Download PDF

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Publication number
CN111301039B
CN111301039B CN202010136623.7A CN202010136623A CN111301039B CN 111301039 B CN111301039 B CN 111301039B CN 202010136623 A CN202010136623 A CN 202010136623A CN 111301039 B CN111301039 B CN 111301039B
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CN
China
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rotating
portal frame
screw rod
extrusion
engraving
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CN202010136623.7A
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CN111301039A (en
Inventor
汪洪涛
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Anhui Hongtao Precision Cnc Technology Co ltd
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Anhui Hongtao Precision Cnc Technology Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B44DECORATIVE ARTS
    • B44BMACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
    • B44B1/00Artist's machines or apparatus equipped with tools or work holders moving or able to be controlled three-dimensionally for making single sculptures or models
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B44DECORATIVE ARTS
    • B44BMACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
    • B44B1/00Artist's machines or apparatus equipped with tools or work holders moving or able to be controlled three-dimensionally for making single sculptures or models
    • B44B1/06Accessories

Abstract

The invention belongs to the technical field of mechanical engraving machines, and particularly relates to a cylindrical engraving machine with an adjustable gantry height; comprises a frame; the upper end surfaces of two sides of the rack are respectively connected with a left support column and a right support column; the portal frame is also provided with an engraving head in a sliding way; the guide motor is arranged at the bottom end of the frame, and the output end of the guide motor is connected with a rotating worm; a rotating screw rod is rotatably inserted in the left supporting column and the right supporting column, and the bottom end of the rotating screw rod is connected with a rotating worm gear; the rotating worm wheel is meshed with the rotating worm; screw rod sliding sleeves are arranged inside two sides of the bottom end of the portal frame, and rotating screw rods are rotatably connected in the screw rod sliding sleeves; limiting guide rods are fixedly inserted into the left support column and the right support column, and the limiting guide rods are slidably inserted into limiting rotating grooves formed in the portal frame; when the engraving machine is convenient to clamp and fix the cylindrical workpieces with different diameters, the engraving head can perform engraving operation on the cylindrical workpieces with different diameters under the vertical sliding of the portal frame.

Description

Cylindrical engraving machine with adjustable gantry height
Technical Field
The invention belongs to the technical field of mechanical engraving machines, and particularly relates to a cylindrical engraving machine with an adjustable gantry height.
Background
The mechanical carving machine is a universal mechanical equipment widely used in wood industry, advertising industry, technology industry, mould industry, building industry, printing and packaging industry and decoration industry, and can carve various different materials such as a carpentry board, a density board, an acrylic organic board, a PVC board, a cotton rose board, a double-color board, a marble, a fireproof board, a rubber board, glass and the like.
Mechanical engravers can be divided into planar engravers and cylindrical engravers, depending on the workpiece to be engraved. The plane engraving machine can be used for carrying out surface relief on a plate, the cylindrical engraving machine can be used for engraving on a cylindrical workpiece, a processed finished product can be applied to upright posts or other parts of high-grade furniture and antique furniture, and other materials can be processed into products of different forms by the cylindrical engraving machine, so that the application is very wide.
When the existing cylindrical engraving machine is used, because the portal frame of the engraving machine is of a fixed height, the engraving machine is further required to be replaced by other large cylindrical engraving machines or required to adjust the height of the engraving head of the engraving machine when the engraving machine is used for engraving cylindrical workpieces with different diameters, so that the complexity of the engraving process is improved, and the efficient engraving operation of the engraving machine is influenced.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides a cylindrical engraving machine with an adjustable gantry height, which is mainly used for solving the problems that when the conventional cylindrical engraving machine is used, other large cylindrical engraving machines need to be replaced or the height of an engraving head of the engraving machine needs to be adjusted when the engraving machine engraves cylindrical workpieces with different diameters due to the fact that the gantry of the engraving machine is fixed in height, so that the complexity of an engraving process is increased, and meanwhile, the efficient engraving operation of the engraving machine is influenced.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a cylindrical engraving machine with an adjustable gantry height, which comprises a frame; the upper end surfaces of two sides of the rack are respectively connected with a left support column and a right support column, and the upper ends of the left support column and the right support column are fixedly provided with portal frames; the portal frame is also provided with an engraving head in a sliding manner; the upper end and the lower end of the engraving head are arranged on the portal frame in a sliding manner through guide sliding rods, and the portal frame is provided with a rotating screw rod; the rotary screw rod is connected with the engraving head in a sliding mode through a screw rod sliding block, and the end portion of the rotary screw rod is connected with the output end of the driving motor through a rotary column; the bottom end of the portal frame is in sliding connection with the left support column and the right support column through the guide lifting device; the guide lifting device comprises a guide motor, a rotating worm, a connecting shaft, a rotating screw rod, a rotating worm wheel and a limiting guide rod; the guide motor is arranged at the bottom end of the rack, and the output end of the guide motor is connected with a rotating worm; a rotary screw rod is rotatably inserted into the left support column and the right support column, and the bottom end of the rotary screw rod is connected with a rotary worm gear; the rotating worm wheel is meshed with the rotating worm; screw rod sliding sleeves are arranged inside two sides of the bottom end of the portal frame, and rotating screw rods are rotatably connected in the screw rod sliding sleeves; limiting guide rods are fixedly inserted into the left supporting column and the right supporting column, and the limiting guide rods are slidably inserted into limiting rotating grooves formed in the portal frame; a workpiece placing plate is arranged above the rack in a sliding mode, a plurality of groups of positioning thimbles and three-jaw chucks are arranged on the workpiece placing plate, and the positioning thimbles and the three-jaw chucks are symmetrically arranged;
when the three-jaw chuck is in work, when a cylindrical workpiece needs to be engraved, one end of the cylindrical workpiece is clamped on the three-jaw chuck, the end part of the other end of the cylindrical workpiece is in contact with the positioning thimble, the extension of the positioning thimble is adjusted, so that the cylindrical workpiece is clamped and fixed on the workpiece placing plate along the left and right horizontal directions of the rack, the front and back horizontal positions on the workpiece placing plate are adjusted through the lead screw driving mechanism, so that the cylindrical workpiece is positioned right below an engraving head, the controller controls the engraving motor on the engraving head on the portal frame to rotate, the engraving motor drives the engraving knife to perform engraving operation on the cylindrical workpiece, and meanwhile, the driving motor and the electric cylinder on the portal frame can drive the engraving head to perform engraving operation along the left and right horizontal directions and the up and down directions of the cylindrical workpiece; when the engraving machine is required to perform metal engraving operation on large-diameter cylindrical workpieces, the controller controls the guide motor to rotate, the guide motor can drive the symmetrically-arranged rotating worms to rotate, the rotating worms are meshed with the rotating worm wheel, the rotating worm wheel rotates to drive the rotating lead screw to rotate in the left support column and the right support column, meanwhile, the rotating lead screw rotates to drive the portal frame to move upwards, the height of the portal frame can be adjusted, the portal frame can drive the engraving head to move upwards, and therefore the engraving machine is convenient to apply to engraving operation on cylindrical workpieces with different diameters; the single engraving head arranged on the portal frame can reduce the weight of the portal frame, so that the guide lifting device can quickly and stably adjust the height of the portal frame, and the phenomenon that the portal frame slides downwards due to overlarge gravity of the portal frame is prevented; meanwhile, the workpiece placing plate is provided with a plurality of groups of positioning thimbles, a three-jaw chuck and a guiding lifting device, so that the engraving machine can clamp and fix cylindrical workpieces with different diameters conveniently, and the engraving head can perform engraving operation on the cylindrical workpieces with different diameters under the up-and-down sliding of the portal frame.
Preferably, a connecting shaft mechanism is arranged between the rotary screw rod and the rotary worm gear; the connecting shaft mechanism comprises an electromagnetic chuck, a lower connecting disc and a rotary torsion spring; the electromagnetic chuck is arranged at the bottom end of the rotating screw rod and is electrically connected to the controller; the top end of the rotating worm wheel is connected with a lower connecting disc, and the upper end surface of the lower connecting disc is provided with a rotating torsion spring; the upper end part of the rotary torsion spring is provided with a metal block; the during operation, when the portal frame is required to adjust the height from top to bottom, the controller can control the electromagnetic chuck to be powered on, the adsorption force of the electromagnetic chuck can enable the metal block to drive the rotating torsion spring to stretch upwards to the bottom end face of the electromagnetic chuck, the electromagnetic chuck is connected with the lower connecting disc through the rotating torsion spring, and then the flexible connection is realized when the disconnection can be realized between the rotating screw rod and the rotating worm, the phenomenon that the screw rod is blocked when rotating due to the fact that the gravity of the portal frame is too large is prevented, and then the phenomenon that the driving motor is damaged easily appears.
Preferably, a plurality of groups of sliding grooves are uniformly formed in the limiting guide rod from top to bottom, and elastic extrusion blocks are inserted into the plurality of groups of sliding grooves; the inner wall of the limiting rotating groove is provided with a clamping groove, and an elastic extrusion block is clamped in the clamping groove; during operation, when the portal frame upwards slides along spacing guide bar, a plurality of elastic extrusion pieces that set up on the spacing guide bar outer wall can be along rotating spacing groove upwards sliding, and after the portal frame upwards slides and stops, the block inslot can be extruded and laminated to multiunit elastic extrusion piece, and then increase the stable contact frictional force between spacing guide bar to the portal frame, increased the stability after the portal frame height control simultaneously.
Preferably, the rotary torsion spring is rotatably inserted with an extrusion column, the top end of the extrusion column is in extrusion contact with the electromagnetic chuck, and the bottom end of the extrusion column is rotatably connected with the lower connecting disc; the bottom end parts of the elastic extrusion blocks are connected with elastic pull ropes, and the end parts of the elastic pull ropes are sleeved on the extrusion columns; the clamping groove is of an annular structure; when the gantry crane works, when the gantry crane needs to slide upwards and the electromagnetic chuck adsorbs the rotating torsion spring, the adsorption force of the electromagnetic chuck can enable the extrusion column to extrude to the lower end face of the electromagnetic chuck, the extrusion force of the electromagnetic chuck can enable the extrusion column to generate extrusion fixed deformation, and the extrusion column is inserted into the rotating torsion spring to reduce the torsional deformation of the rotating torsion spring so as to increase the stability of the rotating connecting shaft of the rotating torsion spring; meanwhile, when the rotating torsion spring rotates, the elastic pull rope is enabled to be twisted and sleeved on the extrusion column, and the plurality of elastic extrusion blocks can slide into the limiting guide rod along with continuous stretching of the elastic pull rope, so that the situation that the height of the portal frame is influenced when the portal frame slides upwards and the elastic extrusion blocks are clamped into the clamping grooves can be prevented; when rotating the lead screw and rotating and adjust the portal frame to the take the altitude, electromagnet loses the electricity, the meeting that rotates the torsional spring breaks away from the contact with electromagnet, and then the restoring force of elasticity stay cord can make the extrusion post produce the rotation with elasticity stay cord recovery length, elasticity extrusion piece can extrude the block to the block groove simultaneously, block groove ring shape sets up for the operation that multiunit elasticity block can play the support to the portal frame, prevent effectively because the gravity of portal frame is too big, lead to the phenomenon that the portal frame sinks downwards.
Preferably, the connecting shaft is wrapped with an elastic extrusion bag, and the elastic extrusion bag is in rotating extrusion contact with the lower end face of the workpiece preventing plate; during operation, when the connecting axle drives the rotation worm of the other side of frame, cup joint on the connecting axle and can play the effect of protection at the elastic extrusion bag to the connecting axle, the operation is struck off to the dust that the board bottom face produced after the sculpture that bonds can be placed to the work piece to the elastic extrusion bag simultaneously, prevents that the work piece from placing the board when sliding, because the work piece places the dust of gathering on the board too much, and then influences the work piece and places the high-efficient sculpture operation of board.
Preferably, the workpiece placing plate is provided with a strip-shaped clamping groove, and a dust suction pipe is arranged in the strip-shaped clamping groove; the end parts of the dust collection pipes are communicated through a gas collecting pipe; the circumferential surface of the side wall of the elastic extrusion bag is rotatably provided with an annular rubber sealing strip, the gas collecting pipe is connected to the annular sealing strip through an elastic hose, the elastic hose is communicated into the elastic extrusion bag, and the elastic extrusion bag is provided with a one-way valve; the during operation, when the engraver is when carving the operation to the cylinder work piece, the outage of controller control electromagnetic chuck, the direction motor can drive the connecting axle and rotate, the rotation of connecting axle can drive the elastic extrusion bag and rotate and extrude the work piece and place the board on, the gas in the elastic extrusion bag can be discharged, when the elastic extrusion bag resumes, the elastic extrusion bag suction power is taken out the gas in the gas collecting duct through the air guide hose, the suction power of gas collecting duct can be through the dust absorption pipe with the work piece place the dust on the board and carry out the suction collection operation simultaneously, effectively place the engraver when carving the operation to the work piece, because glyptic dust volume is too big, the safe high-efficient sculpture operation of influence engraver.
The invention has the following beneficial effects:
1. according to the invention, the single engraving head arranged on the portal frame can reduce the weight of the portal frame, so that the guide lifting device can rapidly and stably adjust the height of the portal frame, and the phenomenon that the portal frame slides downwards due to overlarge gravity of the portal frame is prevented; meanwhile, the workpiece placing plate is provided with a plurality of groups of positioning thimbles, a three-jaw chuck and a guiding lifting device, so that the engraving machine can clamp and fix cylindrical workpieces with different diameters conveniently, and the engraving head can perform engraving operation on the cylindrical workpieces with different diameters under the up-and-down sliding of the portal frame.
2. According to the invention, through the matching of the connecting shaft mechanism and the elastic extrusion block, when the electromagnetic chuck is electrified, the extrusion column can be extruded to the lower end surface of the electromagnetic chuck through the adsorption force of the electromagnetic chuck, the extrusion column can be extruded and fixedly deformed through the extrusion force of the electromagnetic chuck, and the torsional deformation of the rotary torsion spring can be reduced by inserting the extrusion column into the rotary torsion spring, so that the stability of the rotary connecting shaft of the rotary torsion spring is improved; electromagnetic chuck loses the electricity, rotates meeting and electromagnetic chuck of torsional spring and breaks away from the contact, and then the restoring force of elasticity stay cord can make the extrusion post produce to rotate and resume length with the elasticity stay cord, and the block groove can be extruded to the elasticity extrusion piece simultaneously, and the block groove ring shape sets up for multiunit elasticity block piece can play the operation of support to the portal frame, prevents effectively that because the gravity of portal frame is too big, leads to the phenomenon that the portal frame sinks downwards.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a side view of the present invention;
FIG. 3 is an assembly view of the coupling mechanism of the present invention;
FIG. 4 is an enlarged view of a portion of the invention at A in FIG. 2;
in the figure: the device comprises a rack 1, a left support column 2, a right support column 3, a portal frame 4, a limiting rotation groove 41, a clamping groove 42, an engraving head 5, a guiding lifting device 6, a guiding motor 61, a rotating worm 62, a connecting shaft 63, a rotating screw rod 64, a rotating worm wheel 65, a limiting guide rod 66, a sliding groove 661, an elastic extrusion block 67, a workpiece placing plate 7, a strip-shaped clamping groove 71, a connecting shaft mechanism 8, an electromagnetic chuck 81, a lower connecting disc 82, a rotating torsion spring 83, an extrusion column 84, a positioning thimble 9, a three-jaw chuck 10, an elastic pull rope 11, an elastic extrusion bag 12, an annular rubber sealing strip 121, a dust suction pipe 13 and an elastic hose 14.
Detailed Description
A gantry height adjustable type cylindrical engraving machine according to an embodiment of the present invention will be described below with reference to fig. 1 to 4.
As shown in fig. 1-4, the cylindrical engraving machine with adjustable gantry height of the present invention comprises a frame 1; the upper end surfaces of two sides of the rack 1 are respectively connected with a left support column 2 and a right support column 3, and the upper ends of the left support column 2 and the right support column 3 are fixedly provided with a portal frame 4; the portal frame 4 is also provided with an engraving head 5 in a sliding manner; the upper end and the lower end of the engraving head 5 are arranged on the portal frame 4 in a sliding manner through guide sliding rods, and the portal frame 4 is provided with a rotating screw rod 64; the rotary screw rod 64 is connected with the engraving head 5 in a sliding manner through a screw rod sliding block, and the end part of the rotary screw rod 64 is connected with the output end of the driving motor through a rotary column; the bottom end of the portal frame 4 is slidably connected with the left support column 2 and the right support column 3 through a guide lifting device 6; the guide lifting device 6 comprises a guide motor 61, a rotating worm 62, a connecting shaft 63, a rotating screw rod 64, a rotating worm wheel 65 and a limiting guide rod 66; the guide motor 61 is installed at the bottom end of the frame 1, and the output end of the guide motor 61 is connected with a rotating worm 62; a rotary screw rod 64 is rotatably inserted into the left support column 2 and the right support column 3, and the bottom end of the rotary screw rod 64 is connected with a rotary worm gear 65; the rotating worm wheel 65 is meshed with the rotating worm 62; screw rod sliding sleeves are arranged inside two sides of the bottom end of the portal frame 4, and rotating screw rods 64 are rotatably connected in the screw rod sliding sleeves; a limiting guide rod 66 is fixedly inserted into the left support column 2 and the right support column 3, and the limiting guide rod 66 is slidably inserted into a limiting rotating groove 41 formed in the portal frame 4; a workpiece placing plate 7 is arranged above the rack 1 in a sliding mode, a plurality of groups of positioning thimbles 9 and three-jaw chucks 10 are arranged on the workpiece placing plate 7, and the positioning thimbles 9 and the three-jaw chucks 10 are symmetrically arranged;
when the three-jaw engraving machine works, when a cylindrical workpiece needs to be engraved, one end of the cylindrical workpiece is clamped on the three-jaw chuck 10, the end of the other end of the cylindrical workpiece is in contact with the positioning thimble 9, the elongation of the positioning thimble 9 is adjusted, so that the cylindrical workpiece is clamped and fixed on the workpiece placing plate 7 along the left and right horizontal directions of the rack 1, the front and back horizontal positions on the workpiece placing plate 7 are adjusted through the lead screw driving mechanism, so that the cylindrical workpiece is positioned right below the engraving head 5, then the controller controls the engraving motor on the engraving head 5 on the portal frame 4 to rotate, the engraving motor drives the engraving knife to perform engraving operation on the cylindrical workpiece, and meanwhile, the driving motor and the electric cylinder on the portal frame 4 can drive the engraving head 5 to perform engraving operation along the left and right horizontal directions and the up and down directions of; when the engraving machine is required to perform metal engraving operation on a large-diameter cylindrical workpiece, the controller controls the guide motor 61 to rotate, the guide motor 61 can drive the rotating worms 62 which are symmetrically arranged to rotate, the rotating worms 62 are meshed with the rotating worm wheel 65, the rotating worm wheel 65 rotates to drive the rotating screw rod 64 to rotate in the left support column 2 and the right support column 3, meanwhile, the rotating screw rod 64 rotates to drive the portal frame 4 to move upwards, the height of the portal frame 4 can be adjusted, the portal frame 4 can drive the engraving head 5 to move upwards, and therefore the engraving machine is convenient to be suitable for performing engraving operation on cylindrical workpieces with different diameters; the weight of the portal frame 4 can be reduced through the single engraving head 5 arranged on the portal frame 4, so that the guide lifting device 6 can quickly and stably adjust the height of the portal frame 4, and the phenomenon that the portal frame 4 slides downwards due to overlarge gravity of the portal frame 4 is prevented; meanwhile, the workpiece placing plate 7 is provided with a plurality of groups of positioning thimbles 9, three-jaw chucks 10 and a guide lifting device 6, so that the engraving machine can clamp and fix cylindrical workpieces with different diameters conveniently, and the engraving head 5 can perform engraving operation on the cylindrical workpieces with different diameters under the up-and-down sliding of the portal frame 4.
As an embodiment of the present invention, a coupling mechanism 8 is disposed between the rotary screw 64 and the rotary worm wheel 65; the connecting shaft mechanism 8 comprises an electromagnetic chuck 81, a lower connecting disc 82 and a rotary torsion spring 83; the electromagnetic chuck 81 is arranged at the bottom end of the rotating screw rod 64, and the electromagnetic chuck 81 is electrically connected to the controller; the top end of the rotating worm wheel 65 is connected with a lower connecting disc 82, and the upper end surface of the lower connecting disc 82 is provided with a rotating torsion spring 83; a metal block is arranged at the upper end part of the rotary torsion spring 83; during operation, when the portal frame 4 is required to be adjusted in height from top to bottom, the controller can control the electromagnetic chuck 81 to be powered on, the adsorption force of the electromagnetic chuck 81 can enable the metal block to drive the rotating torsion spring 83 to stretch upwards to the bottom end face of the electromagnetic chuck 81, the electromagnetic chuck 81 is connected with the lower connecting disc 82 through the rotating torsion spring 83, and then the flexible connection is realized when the disconnection can be realized between the rotating screw rod 64 and the rotating worm 62, the phenomenon that the rotating screw rod 64 is blocked when rotating is prevented from being caused due to the overlarge gravity of the portal frame 4, and then the phenomenon that the driving motor is damaged easily occurs.
As an embodiment of the present invention, a plurality of sets of sliding grooves 661 are uniformly formed in the limiting guide rod 66 from top to bottom, and elastic extrusion blocks 67 are inserted into the plurality of sets of sliding grooves 661; the inner wall of the limiting rotation groove 41 is provided with a clamping groove 42, and an elastic extrusion block 67 is clamped in the clamping groove 42; during operation, when portal frame 4 upwards slides along spacing guide bar 66, a plurality of elastic extrusion piece 67 that set up on the spacing guide bar 66 outer wall can upwards slide along rotating spacing groove 41, and after portal frame 4 upwards slides and stops, multiunit elastic extrusion piece 67 can extrude the laminating to block in the groove 42, and then increase spacing guide bar 66 to the stable contact frictional force between portal frame 4, increased the stability after the high adjustment of portal frame 4 simultaneously.
As an embodiment of the present invention, the rotary torsion spring 83 is rotatably inserted with the squeezing column 84, the top end of the squeezing column 84 is in squeezing contact with the electromagnetic chuck 81, and the bottom end of the squeezing column 84 is rotatably connected with the lower connecting disc 82; the bottom end parts of the elastic extrusion blocks 67 are connected with elastic pull ropes 11, and the end parts of the elastic pull ropes 11 are sleeved on the extrusion columns 84; the clamping groove 42 is of an annular structure; during operation, when the portal frame 4 needs to slide upwards, when the electromagnetic chuck 81 adsorbs the rotating torsion spring 83, the adsorption force of the electromagnetic chuck 81 can enable the extrusion column 84 to extrude to the lower end face of the electromagnetic chuck 81, the extrusion force of the electromagnetic chuck 81 can enable the extrusion column 84 to generate extrusion fixing deformation, the extrusion column 84 is inserted into the rotating torsion spring 83, the torsional deformation of the rotating torsion spring 83 can be reduced, and the stability of the rotating connecting shaft of the rotating torsion spring 83 is further improved; meanwhile, when the rotary torsion spring 83 rotates, the elastic pull rope 11 is twisted and sleeved on the extrusion column 84, and the plurality of elastic extrusion blocks 67 can slide into the limiting guide rod 66 along with the continuous stretching of the elastic pull rope 11, so that the situation that the height of the portal frame 4 is influenced when the elastic extrusion blocks 67 are clamped into the clamping grooves 42 when the portal frame 4 slides upwards can be prevented; when rotating lead screw 64 and rotating and adjusting portal frame 4 to a take the altitude, electromagnetic chuck 81 loses the electricity, the meeting that rotates torsional spring 83 breaks away from the contact with electromagnetic chuck 81, and then the restoring force of elasticity stay cord 11 can make extrusion post 84 produce and rotate elasticity stay cord 11 recovery length, elasticity extrusion piece 67 can extrude the block to block groove 42 simultaneously, block groove 42 annular sets up, make multiunit elasticity block can play the operation of support to portal frame 4, effectively prevent because portal frame 4's gravity is too big, lead to the phenomenon that portal frame 4 sinks downwards.
As an embodiment of the present invention, the connecting shaft 63 is wrapped with an elastic pressing bag 12, and the elastic pressing bag 12 is in rotating pressing contact with the lower end surface of the workpiece preventing plate; during operation, when connecting axle 63 drives the rotation worm 62 of frame 1 other side and rotates, cup joint on connecting axle 63 and can play the effect of protection at elastic extrusion bag 12 to connecting axle 63, elastic extrusion bag 12 can strike off the operation to the dust that produces after the sculpture that the board 7 bottom face bonded is placed to the work piece simultaneously, prevents that the work piece from placing board 7 when sliding, because the dust of work piece placing gathering on board 7 is too much, and then influences the high-efficient sculpture operation that the board 7 was placed to the work piece.
As an embodiment of the present invention, a strip-shaped slot 71 is formed on the workpiece placing plate 7, and a dust suction pipe 13 is disposed in the strip-shaped slot 71; the end parts of the dust collection pipes 13 are communicated through gas collecting pipes; an annular rubber sealing strip 121 is rotatably arranged on the circumferential surface of the side wall of the elastic extrusion bag 12, the gas collecting pipe is connected to the annular sealing strip through an elastic hose 14, the elastic hose 14 is communicated into the elastic extrusion bag 12, and the elastic extrusion bag 12 is provided with a one-way valve; the during operation, when the engraver is carving the operation to the cylinder work piece, controller control electromagnetic chuck 81 cuts off the power supply, direction motor 61 can drive connecting axle 63 and rotate, the rotation of connecting axle 63 can drive elasticity extrusion bag 12 and rotate and extrude the work piece and place the board 7 on, the gas in the elasticity extrusion bag 12 can be discharged, when elasticity extrusion bag 12 resumes, elasticity extrusion bag 12 suction can take out the gas in the gas collecting duct through the air hose, the suction of gas collecting duct can be through dust absorption pipe 13 with the work piece place the dust on board 7 and carry out the suction collection operation simultaneously, effectively place the engraver when carving the operation to the work piece, because glyptic dust volume is too big, influence the safe high-efficient sculpture operation of engraver.
The specific working process is as follows:
when the three-jaw engraving machine works, when a cylindrical workpiece needs to be engraved, one end of the cylindrical workpiece is clamped on the three-jaw chuck 10, the end of the other end of the cylindrical workpiece is in contact with the positioning thimble 9, the elongation of the positioning thimble 9 is adjusted, so that the cylindrical workpiece is clamped and fixed on the workpiece placing plate 7 along the left and right horizontal directions of the rack 1, the front and back horizontal positions on the workpiece placing plate 7 are adjusted through the lead screw driving mechanism, so that the cylindrical workpiece is positioned right below the engraving head 5, then the controller controls the engraving motor on the engraving head 5 on the portal frame 4 to rotate, the engraving motor drives the engraving knife to perform engraving operation on the cylindrical workpiece, and meanwhile, the driving motor and the electric cylinder on the portal frame 4 can drive the engraving head 5 to perform engraving operation along the left and right horizontal directions and the up and down directions of the cylindrical workpiece; when the engraver is required to carve the operation to the cylinder work piece metal of major diameter, controller control direction motor 61 rotates, direction motor 61 can drive the rotation worm 62 that the symmetry set up and rotate, because of rotating worm 62 and rotating worm wheel 65 meshing, the rotation that rotates worm wheel 65 can drive and rotate lead screw 64 at left branch dagger 2 and 3 internal rotations of right branch dagger, the rotation that rotates lead screw 64 simultaneously can drive portal frame 4 and move up, and then can adjust the height of portal frame 4, make portal frame 4 can drive engraving head 5 rebound, and then the engraver of being convenient for is applicable to the cylinder work piece of different diameters and carries out the sculpture operation.
In the description of the present invention, it is to be understood that the terms "center", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be taken as limiting the scope of the present invention.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from its scope. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims (3)

1. A cylindrical engraving machine with an adjustable gantry height comprises a frame (1); the upper end surfaces of two sides of the rack (1) are respectively connected with a left support column (2) and a right support column (3), and the upper ends of the left support column (2) and the right support column (3) are fixedly provided with a portal frame (4); the portal frame (4) is also provided with an engraving head (5) in a sliding manner; the method is characterized in that: the upper end and the lower end of the engraving head (5) are arranged on the portal frame (4) in a sliding manner through guide sliding rods, and a rotating screw rod (64) is arranged on the portal frame (4); the rotary screw rod (64) is connected with the engraving head (5) in a sliding manner through a screw rod sliding block, and the end part of the rotary screw rod (64) is connected with the output end of the driving motor through a rotary column; the bottom end of the portal frame (4) is slidably connected with the left support column (2) and the right support column (3) through a guide lifting device (6); the guide lifting device (6) comprises a guide motor (61), a rotating worm (62), a connecting shaft (63), a rotating screw rod (64), a rotating worm wheel (65) and a limiting guide rod (66); the guide motor (61) is installed at the bottom end of the rack (1), and the output end of the guide motor (61) is connected with a rotating worm (62); a rotary screw rod (64) is rotatably inserted into the left supporting column (2) and the right supporting column (3), and the bottom end of the rotary screw rod (64) is connected with a rotary worm gear (65); the rotating worm wheel (65) is meshed with the rotating worm (62); screw rod sliding sleeves are arranged inside two sides of the bottom end of the portal frame (4), and rotating screw rods (64) are rotatably connected in the screw rod sliding sleeves; a limiting guide rod (66) is fixedly inserted into the left support column (2) and the right support column (3), and the limiting guide rod (66) is slidably inserted into a limiting rotating groove (41) formed in the portal frame (4); a workpiece placing plate (7) is arranged above the rack (1) in a sliding mode, a plurality of groups of positioning thimbles (9) and three-jaw chucks (10) are arranged on the workpiece placing plate (7), and the positioning thimbles (9) and the three-jaw chucks (10) are symmetrically arranged;
a connecting shaft mechanism (8) is arranged between the rotary screw rod (64) and the rotary worm wheel (65); the connecting shaft mechanism (8) comprises an electromagnetic chuck (81), a lower connecting disc (82) and a rotary torsion spring (83); the electromagnetic chuck (81) is installed at the bottom end of the rotating screw rod (64), and the electromagnetic chuck (81) is electrically connected to the controller; the top end of the rotating worm wheel (65) is connected with a lower connecting disc (82), and the upper end surface of the lower connecting disc (82) is provided with a rotating torsion spring (83); the upper end part of the rotary torsion spring (83) is provided with a metal block;
when the vertical height of the portal frame (4) is required to be adjusted, the controller can control the electromagnetic chuck (81) to be powered on, the adsorption force of the electromagnetic chuck (81) can enable the metal block to drive the rotating torsion spring (83) to upwards stretch to the bottom end face of the electromagnetic chuck (81), the electromagnetic chuck (81) and the lower connecting disc (82) are connected through the rotating torsion spring (83), and therefore the flexible connection can be achieved when the rotating lead screw (64) and the rotating worm (62) are disconnected, the phenomenon that the rotating lead screw (64) is clamped when rotating due to the fact that the gravity of the portal frame (4) is too large is prevented, and the phenomenon that the driving motor is easily damaged is further caused;
a plurality of groups of sliding grooves (661) are uniformly formed in the limiting guide rod (66) from top to bottom, and elastic extrusion blocks (67) are inserted in the plurality of groups of sliding grooves (661); the inner wall of the limiting rotating groove (41) is provided with a clamping groove (42), and an elastic extrusion block (67) is clamped in the clamping groove (42);
the rotary torsion spring (83) is rotatably inserted with an extrusion column (84), the top end of the extrusion column (84) is in extrusion contact with the electromagnetic chuck (81), and the bottom end of the extrusion column (84) is rotatably connected with the lower connecting disc (82); the bottom end parts of the elastic extrusion blocks (67) are connected with elastic pull ropes (11), and the end parts of the elastic pull ropes (11) are sleeved on the extrusion columns (84); the clamping groove (42) is of an annular structure.
2. The cylindrical engraving machine with adjustable gantry height of claim 1, wherein: the connecting shaft (63) is wrapped with an elastic extrusion bag (12), and the elastic extrusion bag (12) is in rotating extrusion contact with the lower end face of the workpiece preventing plate.
3. The cylindrical engraving machine with adjustable gantry height of claim 2, wherein: a strip-shaped clamping groove (71) is formed in the workpiece placing plate (7), and a dust suction pipe (13) is arranged in the strip-shaped clamping groove (71); the end parts of the dust collection pipes (13) are communicated through gas collecting pipes; an annular rubber sealing strip (121) is rotatably arranged on the circumferential surface of the side wall of the elastic extrusion bag (12), the gas collecting pipe is connected to the annular sealing strip through an elastic hose (14), the elastic hose (14) is communicated into the elastic extrusion bag (12), and a single valve is arranged on the elastic extrusion bag (12).
CN202010136623.7A 2020-03-02 2020-03-02 Cylindrical engraving machine with adjustable gantry height Active CN111301039B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010136623.7A CN111301039B (en) 2020-03-02 2020-03-02 Cylindrical engraving machine with adjustable gantry height

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Application Number Priority Date Filing Date Title
CN202010136623.7A CN111301039B (en) 2020-03-02 2020-03-02 Cylindrical engraving machine with adjustable gantry height

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CN111301039B true CN111301039B (en) 2021-09-10

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202986602U (en) * 2012-10-31 2013-06-12 陈锡荣 Upright numerical-control stereoscopic engraving machine for stone and wood
CN207510099U (en) * 2017-11-17 2018-06-19 陈建仙 The vertical engraving machine of large-scale three dimensional
CN209566712U (en) * 2018-12-13 2019-11-01 玉环圣弘法数控雕刻设备有限公司 A kind of engraving machine
CN210026853U (en) * 2019-05-10 2020-02-07 河南英凯科技发展有限公司 Stone carving machine with cooling water circulation system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202986602U (en) * 2012-10-31 2013-06-12 陈锡荣 Upright numerical-control stereoscopic engraving machine for stone and wood
CN207510099U (en) * 2017-11-17 2018-06-19 陈建仙 The vertical engraving machine of large-scale three dimensional
CN209566712U (en) * 2018-12-13 2019-11-01 玉环圣弘法数控雕刻设备有限公司 A kind of engraving machine
CN210026853U (en) * 2019-05-10 2020-02-07 河南英凯科技发展有限公司 Stone carving machine with cooling water circulation system

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Denomination of invention: A cylindrical engraving machine with adjustable gantry height

Effective date of registration: 20211210

Granted publication date: 20210910

Pledgee: HONG DA TAO YE PECKING CNC TECHNOLOGY Co.,Ltd.

Pledgor: Anhui Hongtao Precision CNC Technology Co.,Ltd.

Registration number: Y2021980014726