CN111941553A - Numerical control woodworking outer arc surface milling machine - Google Patents
Numerical control woodworking outer arc surface milling machine Download PDFInfo
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- CN111941553A CN111941553A CN202010972726.7A CN202010972726A CN111941553A CN 111941553 A CN111941553 A CN 111941553A CN 202010972726 A CN202010972726 A CN 202010972726A CN 111941553 A CN111941553 A CN 111941553A
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- 238000003801 milling Methods 0.000 title claims abstract description 33
- 238000005520 cutting process Methods 0.000 claims abstract description 58
- 239000000428 dust Substances 0.000 claims abstract description 44
- 239000002023 wood Substances 0.000 claims abstract description 13
- 230000033001 locomotion Effects 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 4
- 210000004907 gland Anatomy 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000010923 batch production Methods 0.000 abstract description 4
- 238000010924 continuous production Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 238000009434 installation Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
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- 239000002184 metal Substances 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27C—PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FOR WOOD OR SIMILAR MATERIAL
- B27C5/00—Machines designed for producing special profiles or shaped work, e.g. by rotary cutters; Equipment therefor
- B27C5/02—Machines with table
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27C—PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FOR WOOD OR SIMILAR MATERIAL
- B27C5/00—Machines designed for producing special profiles or shaped work, e.g. by rotary cutters; Equipment therefor
- B27C5/02—Machines with table
- B27C5/06—Arrangements for clamping or feeding work
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
- B27G21/00—Safety guards or devices specially designed for other wood-working machines auxiliary devices facilitating proper operation of said wood-working machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
- B27G3/00—Arrangements for removing bark-zones, chips, waste, or dust, specially designed for use in connection with wood-working machine or in wood-working plants
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- Milling, Drilling, And Turning Of Wood (AREA)
Abstract
The invention provides a numerical control woodworking outside arc surface milling machine which comprises a cutting device, a feeding device, a positioning device, a dust removal device, a rotary workbench, a machine body and an automatic control system, wherein the cutting device is arranged on the machine body; the rotary worktable is horizontally arranged above the lathe bed; the bottom of the cutting device is arranged on the lathe bed, and the upper part of the cutting device is arranged on the side surface of the rotary worktable; the feeding devices are arranged above and below the lathe bed and are respectively used for driving the cutting device and the rotary worktable; the positioning device is arranged on the rotary worktable, and the dust removal device is arranged above a cutter of the cutting device; the automatic control system is respectively electrically connected with the feeding device and the dust removal device. The milling machine is suitable for processing the outer arc surfaces of connecting elbows with different radiuses for wood structure buildings in batch production, can be used for continuous production, is convenient and quick to clamp and disassemble products, greatly improves the production efficiency, ensures that the production efficiency of the same product is 5-10 times that of a processing center, and has small occupied area, reliable operation and low cost.
Description
Technical Field
The invention relates to a woodworking outer arc surface processing technology, in particular to a numerical control woodworking outer arc surface milling machine.
Background
Along with the improvement of the standard of living of people, the home furnishing quality has higher requirements, wood is a renewable resource, the characteristics of the wood structure building such as attractive appearance, safety, environmental protection, comfort and the like are gradually accepted by the public, but the customized wood structure building has different types from the design and the processing to the installation of the product, the cost is higher, most people cannot bear, independent products of the customized wood structure building are strived for developing for numerous wood house enterprises at home and abroad, the customized wood structure building strives to have attractive appearance, quick processing, convenient installation and standardized series products, each part is prefabricated by standardized design and batch production, only structural adjustment is needed according to the needs of customers, and the unit cost can be greatly reduced. Therefore, the requirements on the matched processing equipment of the device are higher in processing precision, production efficiency and specialization degree.
To the processing of timber structure bent angle extrados, the processing mode that now adopts mainly has vertical digit control machine tool processing, carpenter's profile modeling milling machine processing two kinds of modes:
the outer arc surface of the product processed by the vertical numerical control machine tool is formed by fixing a raw material on a working table, making an X-axis and Y-axis motion arc-shaped track along the horizontal direction of the working table, vertically arranging a milling cutter into a main shaft clamp, making a cutter perform multiple feeding motions along the axial direction of a main shaft, controlling the whole motion by a program, and performing arc-shaped cutting on the outer surface of the material by the rotation of the cutter.
A woodworking profiling milling machine is used for processing a bent angle outer arc surface, a metal backup plate with the same radian is processed according to the outer radius of a product and is fixed on a lathe bed, the product to be processed is fixed on a workbench capable of moving in two directions, the workbench moves according to the track of the backup plate to process the outer arc surface of the product, and a material is cut and formed through the rotating motion of a cutter.
Above two kinds of processing methods, can only process one at a clamping in-process, the equipment stops completely the condition below can load and unload raw and other materials, and the cutter mostly is vertical installation, and to higher product, the cutter need do reciprocating motion many times just can take shape the material processing, and the product can appear many places and connect the sword phenomenon, and equipment cost is higher, and machining efficiency is low, is not fit for the batch production of standard product.
Disclosure of Invention
The invention aims to provide a numerical control woodworking outside arc surface milling machine aiming at the problems of the existing wood structure bent angle outside arc surface processing, the milling machine is suitable for processing the outside arc surfaces of connecting elbows with different radiuses for wood structure buildings in batch production, can realize continuous production, is convenient and quick to clamp and disassemble products, greatly improves the production efficiency, has the production efficiency 5-10 times that of a processing center, has small equipment floor area, and is reliable in operation and low in cost.
In order to achieve the purpose, the invention adopts the technical scheme that: a numerical control woodworking outside arc surface milling machine comprises a cutting device, a feeding device, a positioning device, a dust removal device, a rotary worktable, a machine body and an automatic control system;
the rotary worktable is horizontally arranged above the lathe bed; the bottom of the cutting device is arranged on the lathe bed, and the upper part of the cutting device is arranged on the side surface of the rotary worktable; the feeding devices are arranged above and below the lathe bed and are respectively used for driving the cutting device and the rotary worktable; the positioning device is arranged on the rotary workbench, and the dust removal device is arranged above a cutter of the cutting device; the automatic control system is respectively electrically connected with the feeding device (a cutter shaft motor and a workbench motor) and the dust removal device (a dust removal device driving motor).
Further, the bed includes a main frame including, but not limited to, a rectangular frame.
Further, the feeding device comprises a cutter shaft motor arranged above the lathe bed and a workbench motor arranged below the lathe bed; the cutter shaft motor is a three-phase asynchronous motor; the table motor includes, but is not limited to, a worm gear reducer.
Further, the cutter shaft motor is arranged on a motor plate, the motor plate is arranged on a motor base, and the position of the motor plate is adjusted through an adjusting bolt on an adjusting block of the motor base, so that the high-speed flat belt is tensioned; the motor base is arranged on the dovetail upper guide rail, and the dovetail lower guide rail matched with the dovetail upper guide rail is arranged on the main frame body; the fixed shaft sleeve of the cutting device is arranged on the motor base; the dovetail guide rail is rotated to adjust the guide rail on the dovetail of the screw rod to slide, so that the position of the cutting device can be adjusted, the processing depth of a cutter of the cutting device is further changed, and the specific position is adjusted according to the width of a workpiece to be cut; the cutter shaft motor flat belt wheel at the bottom of the cutter shaft motor is connected with the flat belt wheel of the cutter main shaft of the cutting device, the cutter shaft motor flat belt wheel adopts an arc-shaped structure, a flat belt is tensioned more easily, the flat belt is prevented from falling off when loosened, the flat belt is prevented from axially moving, and the service life of the flat belt is prolonged.
Furthermore, the workbench motor is arranged on a motor base of the main frame body (the motor base is arranged at the bottom of the inner side of the main frame body), and the transmission triangular belt is tensioned through an adjusting bolt on the motor base; the workbench motor is connected with the main shaft belt pulley through the motor belt pulley, after the workbench motor is started, the motor belt pulley drives the workbench main shaft belt pulley to rotate, the workbench main shaft belt pulley is arranged at the bottom of the workbench main shaft, the workbench main shaft belt pulley drives the workbench main shaft to rotate, the workbench main shaft is fixed on the rotating platform seat through the tapered roller bearing, and the rotating platform seat is vertically arranged on the upper plane of the main frame body; the rotary worktable is arranged at the upper end of the worktable spindle, the plane of the rotary worktable is vertical to the axis of the worktable spindle, and the worktable spindle is parallel to the cutter spindle. The rotary worktable rotates at a low uniform speed, and the rotating speed of the worktable can be adjusted by using a frequency converter, so that the processing quality of the surface of a workpiece to be cut and reasonable process time configuration are ensured.
Furthermore, the positioning device comprises an inner positioning ring, a plurality of positioning blocks and a workpiece locking device, the inner positioning ring (in a circular ring shape) is installed on the rotary workbench, an inner hole of the inner positioning ring is sleeved at the top of a main shaft of the workbench, the axis of the inner positioning ring is overlapped with the main shaft of the workbench, the circular arc surface of the inner positioning ring inner hole is perpendicular to the rotary workbench so as to ensure the positioning precision of the workpiece, and a dustproof plate is arranged at an upper opening of the inner positioning ring so as to prevent wood chips and dust from entering the inner positioning ring and being difficult to clean; the positioning blocks are arranged on the upper plane of the rotary workbench, and a plurality of positioning blocks are uniformly distributed according to the size circumference of two side edges of the workpiece; the workpiece locking device comprises a locking hand wheel, a locking screw rod, a locking seat, a locking nut, a locking block, a locking guide seat and a locking block pressure pad, wherein the locking seat is installed on a main shaft of the rotary workbench, the locking nut is fixed on the locking seat, the locking screw rod is in threaded fit with the locking nut, the locking hand wheel is installed at one end of the locking screw rod, the locking block is connected with the other end of the locking screw rod, and the locking block is in universal connection with the locking screw rod and can rotate freely; the locking guide seat (outer arc pressing block guide seat) is arranged on the dust guard, and the other end of the locking guide seat is sleeved on the locking block, so that the workpiece is pressed towards the center direction of the main shaft when the locking block is locked; the locking block pressure pad is installed at the locking block terminal surface, and locking block pressure pad and workstation station department have a N salient point, and fixed work piece prevents its drunkenness during locking, guarantees the machining precision. And the locking hand wheel is rotated, the locking screw drives the locking block to compress the workpiece, and the workpiece is loosened in the opposite direction. And when the product is clamped, the inner arc surface of the finished product is used as a reference, the product is placed between the two positioning blocks on the table top of the workbench and completely attached to the inner positioning ring, and the rotary locking device is pressed tightly.
Further, the cutting device comprises a tool spindle, a tool, a movable shaft sleeve, a fixed shaft sleeve and a flat belt pulley, wherein one end of the tool spindle is coaxially and rigidly connected with the flat belt pulley, the other end of the tool spindle is sleeved with the tool, the flat belt pulley can drive the tool fixed on the tool spindle to do rotary cutting motion, and the dimension of the cutting edge of the axial section of the tool is the same as the dimension of the section of a workpiece to be processed; the end part of a main shaft of the cutter sleeved with the cutter is in threaded connection with a cutter locking nut, and a cutter gasket is arranged between the cutter locking nut and the cutter.
The cutter main shaft is arranged in the movable shaft sleeve in a matching way through a bearing, and the bearing gland and the sealing ring are sealed by adopting an axial labyrinth way, so that sawdust and dust can be prevented from entering the bearing; the utility model discloses a motor, including fixed axle sleeve, movable axle sleeve, fixed axle sleeve, adjusting screw, fixed axle sleeve, movable axle sleeve external diameter and fixed axle sleeve internal diameter adopt clearance fit, can adjust the position of movable axle sleeve in fixed axle sleeve at any time, and fixed axle sleeve installs on the motor cabinet, the one end that the movable axle sleeve is close to the flat belt pulley is fixed with the bearing end cover, be fixed with adjusting nut on the bearing end cover, fixed axle sleeve is sheathe in fixed mounting and is adjusted the support, and adjusting screw one end is installed on the support through pressure bearing and lock nut, and the other end is with the adjusting nut screw-thread fit on the bearing end cover, and fixed axle sleeve both ends are equipped with opening locking mode respectively, installs first lock bolt, and rotatory adjusting screw can. The movable shaft sleeve drives the cutter to move along the axis direction, and the size of an inner arc of the workpiece cut by the cutter is adjusted, so that the arc radius of the workpiece to be machined is changed. And the second locking nut is arranged on the adjusting screw rod and synchronously adjusted with the adjusting nut, and clamps and positions the bearing end cover to change the axial position of the cutter. The baffle ring is arranged between the cutter main shaft bearing and the flat belt pulley and plays roles in positioning the belt pulley and preventing dust. The gasket is arranged at the end of the cutter main shaft and fixes the flat belt pulley through a second locking bolt and a flat key. The tool spindle is perpendicular to the dovetail guide rail and perpendicular to the rotary table surface. The rotating direction of the tool spindle is the same as that of the rotating worktable, and the tool spindle drives the tool fixed on the tool spindle to do rotary cutting motion.
Furthermore, the dust removal device adopts a structural mode of integrating a cutter protection cover and dust removal, the cutter protection cover is cylindrical, is sleeved on the outer side of the cutter, and is provided with an opening on one side facing to a workpiece to be processed; on the safety cover, the parabolic direction of cutter cutting timber sweeps sets up the dust removal mouth, and the dust removal mouth communicates with dust collecting equipment, opens dust collecting equipment and can be with saw-dust suction in the safety cover.
Furthermore, the numerical control woodworking outside arc surface milling machine adopts a touch screen PLC integrated machine to implement operation control, and the rotating speed of a workbench of the numerical control woodworking outside arc surface milling machine can be controlled by frequency conversion and speed regulation of a touch screen on the PLC integrated machine. Automatic control system includes control panel and block terminal, the last touch-sensitive screen of installing of control panel, control panel sets up in bed body top through the control panel rotation axis of a plurality of rotations, and the workman that is fit for different posture characteristics operates, and the block terminal setting is in the bed body below, and control panel and block terminal adopt separately to place, make it reach the purpose that does benefit to operation and control.
The invention discloses a numerical control woodworking outside arc surface milling machine process flow:
1. before starting up, the cutter is ensured to be between two workpiece stations, workpieces to be machined are respectively placed on three stations of the workbench, and the workpiece locking device is manually adjusted to fix the workpieces to be machined on the rotary workbench. When placing the work piece, place down along interior holding ring at the circle base in the work piece earlier, ensure the interior circle of work piece and laminate completely with interior holding ring, a hand push work piece leans on tight interior holding ring, and rotatory locking hand wheel is locked on the other hand to ensure the installation accuracy of work piece.
2. This equipment adopts touch-sensitive screen PLC all-in-one to control, starts the cutter rotation button on the touch-sensitive screen, and cutter shaft motor starts, drives the high-speed rotation of cutter main shaft through the flat belt, and cutting device accessible forked tail guide rail adjusts the depth of cut.
3. The cutting device is provided with a cutter adjusting device, and the radial position of the cutter shaft can be finely adjusted by adjusting an adjusting nut, so that the radial cutting height of a workpiece can be adjusted.
4. And starting a rotary button of the touch screen workbench, starting a motor of the workbench, driving the rotary workbench to run at a low speed through the transmission of a triangular belt to implement workpiece processing, and processing the dimension R1 in the graph of FIG. 1 to the dimension R required by the graph of FIG. 2. The equipment can adjust the rotating speed of the workbench according to the cutting quality and the requirement of clamping the workpiece. The low-speed operation of the workbench is realized by the large transmission ratio of the worm and gear, and the rotating speed of the workbench can be controlled by PLC variable frequency speed regulation.
5. The equipment has the function of realizing continuous processing of products without stopping. Namely, when the workpiece at the first station is processed and the workbench rotates to process the second workpiece, the processed workpiece at the first station is disassembled and a new processed workpiece is installed. And by analogy, when a third station workpiece is processed, the workpiece at the second station is disassembled and installed.
6. The tool protection cover has the functions of removing dust, removing chips and protecting the tool from being damaged and splashed.
7. In order to facilitate operation and improve processing efficiency, the control panel is designed to rotate in a position of 360 degrees without dead angles, and meanwhile, in order to facilitate workpiece disassembly, the control panel is required to rotate to the outside of the workbench during operation of the equipment.
The numerical control woodworking outer arc surface milling machine mainly adopts a cutter main shaft to be vertically installed and parallel to a Z axis, the length of the cutter is greater than the height B of a product, the product is fixed on a circular rotary workbench in a mechanical clamping mode, the axis of the cutter shaft is parallel to the axis of the rotary workbench main shaft, a plurality of products can be simultaneously installed on the surface of the rotary workbench, the products are uniformly distributed according to the center, the center of the rotary workbench is superposed with the centers of inner and outer arc surfaces of the product, the material rotates at a constant speed on the workbench to realize the feeding of the material, the cutter falls on the side surface of the material to be rotationally cut after fixing the height, the processing of the material is realized, a cutting processing area of the equipment is set opposite to an operation area, and the clamping.
In conclusion, the invention is special equipment for processing the outer arc surface of the wood structure product wall body corner product, and the whole equipment system is controlled by adopting a PLC. The invention has the advantages of high efficiency of processed products, energy saving, environmental protection, stable quality, small production operation area and the like, and meanwhile, the equipment has lower cost, convenient operation, stability and reliability, the product processing is uninterruptedly more suitable for the mass and standardized production of products, and the production cost is greatly reduced.
Drawings
FIG. 1 is a top view of a workpiece to be machined;
FIG. 2 is a front view of a workpiece to be machined;
FIG. 3 is a top view of a workpiece after processing according to the present invention;
FIG. 4 is a front view of a workpiece after machining is complete in accordance with the present invention;
FIG. 5 is a front view of the cutting apparatus;
FIG. 6 is a schematic view of FIG. 5 from AA;
FIG. 7 is a schematic sectional view of a numerically controlled woodworking outside arc surface milling machine according to the present invention
FIG. 8 is a front view of the numerically controlled woodworking outside arc surface milling machine of the present invention;
FIG. 9 is a right side view of the numerically controlled woodworking outside arc surface milling machine of the invention;
FIG. 10 is a perspective view of the numerical control woodworking outside arc surface milling machine of the invention.
Detailed Description
The invention is further illustrated by the following examples:
example 1
The embodiment discloses a numerical control woodworking outside arc surface milling machine, which is shown in figures 5-10 and comprises a cutting device, a feeding device, a positioning device, a dust removal device, a rotary worktable 31, a lathe bed and an automatic control system;
the rotary worktable 31 is horizontally arranged above the lathe bed; the bottom of the cutting device is arranged on the lathe bed, and the upper part of the cutting device is arranged on the side surface of the rotary worktable 31; the feeding devices are arranged above and below the lathe bed and are respectively used for driving the cutting device and the rotary worktable 31; the positioning device is arranged on the rotary worktable 31, and the dust removal device is arranged above the cutter 4 of the cutting device; the automation control system is electrically connected to the feeding device (the cutter shaft motor 42 and the table motor 22) and the dust removing device (the dust removing device driving motor), respectively.
The bed includes a main frame 48, and the main frame 48 includes, but is not limited to, a rectangular frame.
The feeding device comprises a cutter shaft motor 42 arranged above the lathe bed and a workbench motor 23 arranged below the lathe bed; the tool shaft motor 42 is a three-phase asynchronous motor; the table motor 23 includes, but is not limited to, a worm gear reducer.
The cutter shaft motor 42 is arranged on a motor plate 43, the motor plate 43 is arranged on a motor base 52, and the position of the motor plate 43 is adjusted through an adjusting bolt 45 on a motor base adjusting block 44, so that the high-speed flat belt is tensioned; the motor base 52 is arranged on a dovetail upper guide rail 53, and a dovetail lower guide rail 54 matched with the dovetail upper guide rail 53 is arranged on the main frame body 48; the fixed shaft sleeve 9 of the cutting device is arranged on the motor base 52; the dovetail guide rail 53 on the rotary dovetail guide rail adjusting screw 55 slides, so that the position of the cutting device can be adjusted, the processing depth of a cutter 4 of the cutting device is further changed, and the specific position is adjusted according to the width of a workpiece to be cut; the cutter shaft motor flat belt pulley 46 at the bottom of the cutter shaft motor 42 is connected with the flat belt pulley 12 of the cutter main shaft 1 of the cutting device, the cutter shaft motor flat belt pulley 46 adopts an arc-shaped structure, a flat belt is more easily tensioned, the flat belt is prevented from falling off when loosened, the flat belt is prevented from axially moving, and the service life of the flat belt is prolonged.
The workbench motor 23 is arranged on the main frame body motor base 22 (the motor base 22 is arranged at the bottom of the inner side of the main frame body 48), and the transmission triangle belt is tensioned through the adjusting bolt 47 on the motor base; the workbench motor 23 is connected with the main shaft belt pulley 25 through the motor belt pulley 24, after the workbench motor 23 is started, the motor belt pulley 24 drives the workbench main shaft belt pulley 25 to rotate, the workbench main shaft belt pulley 25 is installed at the bottom of the workbench main shaft 26, the workbench main shaft belt pulley 25 drives the workbench main shaft 26 to rotate, the workbench main shaft 26 is fixed on the rotary platform seat 27 through the tapered roller bearing 28, and the rotary platform seat 27 is vertically installed on the upper plane of the main frame body 48; the rotary worktable 31 is arranged at the upper end of the worktable spindle 26, the plane of the rotary worktable 31 is vertical to the axis of the worktable spindle 26, and the worktable spindle 26 is parallel to the cutter spindle 1. The rotary worktable 31 rotates at a low uniform speed, and the rotating speed of the worktable can be adjusted by using a frequency converter, so that the processing quality of the surface of a workpiece to be cut and reasonable process time configuration are ensured.
The positioning device comprises an inner positioning ring 32, a plurality of positioning blocks 30 and a workpiece locking device, wherein the inner positioning ring 32 (in a circular ring shape) is arranged on a rotary worktable 31, an inner hole of the inner positioning ring 32 is sleeved at the top of a worktable main shaft 26, the axis of the inner positioning ring is overlapped with the worktable main shaft 26, the arc surface of the inner hole of the inner positioning ring 32 is vertical to the rotary worktable 31 so as to ensure the positioning precision of a workpiece, and a dustproof plate 33 is arranged at the upper opening of the inner positioning ring 32 so as to prevent wood chips and dust from entering the inner positioning ring and being difficult to clean; the positioning blocks 30 are arranged on the upper plane of the rotary worktable 31, and a plurality of positioning blocks 30 are uniformly distributed according to the size of the circumferences of two side edges of the workpiece; the workpiece locking device comprises a locking hand wheel 39, a locking screw 37, a locking seat 40, a locking nut 38, a locking block 36, a locking guide seat 35 and a locking block pressure pad 34, wherein the locking seat 40 is installed on the rotary worktable spindle 26, the locking nut 38 is fixed on the locking seat 40, the locking screw 37 is in threaded fit with the locking nut 38, the locking hand wheel 39 is installed at one end of the locking screw 37, the other end of the locking screw is connected with the locking block 36, and the locking block 36 is in universal connection with the locking screw 37 and can rotate freely; the locking guide seat 35 is arranged on the dust guard 33, and the other end of the locking guide seat is sleeved on the locking block 36, so that the workpiece is pressed towards the center direction of the main shaft when the locking block 36 is locked; the locking block pressure pad 34 is arranged on the end face of the locking block 36, and N convex points are arranged at the locking block pressure pad and the working station of the workbench, so that a workpiece is fixed during locking, the workpiece is prevented from moving, and the processing precision is ensured. And the locking hand wheel 39 is rotated, the locking screw 37 drives the locking block 36 to press the workpiece, and the workpiece is loosened in the opposite direction. And when the product is clamped, the inner arc surface of the finished product is used as a reference, the product is placed between the two positioning blocks on the table top of the workbench and completely attached to the inner positioning ring, and the rotary locking device is pressed tightly.
The cutting device comprises a cutter main shaft 1, a cutter 4, a movable shaft sleeve 8, a fixed shaft sleeve 9 and a flat belt pulley 12, wherein one end of the cutter main shaft 1 is coaxially and rigidly connected with the flat belt pulley 12, the other end of the cutter main shaft is sleeved with the cutter 4, the flat belt pulley 12 can drive the cutter 4 fixed on the cutter main shaft to do rotary cutting motion, and the size of an axial section cutting edge of the cutter 4 is the same as that of the section of a workpiece to be processed; the end part of a cutter main shaft 1 sleeved with a cutter 4 is in threaded connection with a cutter locking nut 2, and a cutter gasket 3 is arranged between the cutter locking nut 2 and the cutter 4.
The cutter main shaft 1 is installed in a movable shaft sleeve 8 through a bearing 7 in a matching mode, and the bearing gland (6) and the sealing ring (5) are sealed in an axial labyrinth mode, so that sawdust and dust can be prevented from entering the bearing; remove 8 external diameters of axle sleeve and fixed axle sleeve 9 internal diameters and adopt clearance fit, can adjust the position of removing axle sleeve 8 in fixed axle sleeve 9 at any time, fixed axle sleeve 9 is installed on motor cabinet 52, the one end that removes axle sleeve 8 and be close to flat belt pulley 12 is fixed with bearing cap 11, be fixed with adjusting nut 17 on the bearing cap 11, fixed mounting adjusts support 18 on the fixed axle sleeve 9, and adjusting screw 15 one end is installed on support 18 through pressure bearing 19 and lock nut 20, and the other end and adjusting nut 17 screw-thread fit, fixed axle sleeve 9 both ends are equipped with opening locking mode respectively, installs first lock bolt 21, and rotatory adjusting screw 15 can change the position of removing axle sleeve 8 and fixed axle sleeve 9 axis direction, loosens first lock nut 21 before the adjustment, locks first lock nut 21 after the adjustment. The movable shaft sleeve 8 drives the cutter 4 to move along the axis direction, and the size of an inner arc of a workpiece cut by the cutter is adjusted, so that the arc radius of the workpiece to be machined is changed. And a second locking nut 16 is arranged on the adjusting screw rod and synchronously adjusted with the adjusting nut 17, and clamps and positions the bearing end cover 11 to change the axial position of the cutter. The baffle ring 10 is arranged between the bearing of the tool spindle 1 and the flat belt pulley 12 and plays the roles of positioning the belt pulley and preventing dust. The gasket 13 is arranged at the end of the tool spindle 1 and fixes the flat belt pulley 12 through a second locking bolt 14 and a flat key. The tool spindle 1 is mounted perpendicular to the dovetail guide and perpendicular to the surface of the rotary table 31. The rotation direction of the tool spindle 1 is the same as the rotation direction of the rotary table 31, and the tool spindle 1 drives the tool 4 fixed thereon to perform rotary cutting motion.
The dust removal device adopts a structural mode of integrating a cutter protection cover and dust removal, the cutter protection cover 41 is cylindrical, is sleeved on the outer side of the cutter and is provided with an opening towards one side of a workpiece to be processed; on the safety cover 41, the parabolic direction of cutter cutting timber sweeps sets up the dust removal mouth, and the dust removal mouth communicates with dust collecting equipment, opens dust collecting equipment and can be with saw-dust suction in the safety cover 41.
The numerical control woodworking outside arc surface milling machine adopts the touch screen PLC all-in-one machine to implement operation control, and the rotating speed of the workbench of the numerical control woodworking outside arc surface milling machine can be controlled by frequency conversion and speed regulation of the touch screen on the PLC all-in-one machine. Automatic control system includes control panel 50 and block terminal 56, the last touch-sensitive screen of installing of control panel 50, control panel 50 sets up in the bed body top through the control panel rotation axis 51 of a plurality of rotations, and the workman that is fit for different posture characteristics operates, and block terminal 56 sets up in the lathe bed below, and control panel 50 and block terminal 56 adopt separately to place, make it reach the purpose that does benefit to operation and control.
The process flow of the numerical control woodworking outside arc surface milling machine is adopted:
1. before starting up, the cutter is ensured to be positioned between two workpiece stations, workpieces 49 to be machined are respectively placed on three stations of the workbench, and the workpiece locking device is manually adjusted to fix the workpieces 49 to be machined on the rotary workbench 31. When placing the work piece, place down along interior holding ring 32 at the bottom edge of circle in the work piece earlier, ensure that circle and interior holding ring laminate completely in the work piece, a hand pushes away the work piece and leans on tight interior holding ring, and rotatory locking hand wheel is locked on the other hand to ensure the installation accuracy of work piece.
2. This equipment adopts touch-sensitive screen PLC all-in-one to control, starts the cutter rotation button on the touch-sensitive screen, and cutter shaft motor 42 starts, drives the high-speed rotation of cutter main shaft 1 through the flat belt, and cutting device accessible forked tail guide rail adjusts the depth of cut.
3. The cutting device is provided with a cutter adjusting device, and the radial position of the cutter shaft can be finely adjusted by adjusting an adjusting nut, so that the radial cutting height of a workpiece can be adjusted.
4. And starting a rotary button of the touch screen workbench, starting a workbench motor 23, driving the rotary workbench 31 to run at a low speed through the transmission of a V-belt to process the workpiece 49, and processing the dimension R1 in the drawing of fig. 1 and 2 to the dimension R required by the drawing of fig. 3 and 4. The equipment can adjust the rotating speed of the workbench 31 according to the cutting quality and the requirement of clamping the workpiece. The low-speed operation of the workbench is realized by the large transmission ratio of the worm and gear, and the rotating speed of the workbench can be controlled by PLC variable frequency speed regulation.
5. The equipment has the function of realizing continuous processing of products without stopping. Namely, when the workpiece 49 at the first station is processed and the table 31 is rotated to process the second workpiece, the processed workpiece at the first station is removed and a new workpiece is mounted. And by analogy, when a third station workpiece is processed, the workpiece at the second station is disassembled and installed.
6. The tool protection cover 41 has the functions of dust removal, chip removal and tool damage and splash protection.
7. In order to facilitate the operation and improve the processing efficiency, the control panel 50 is designed to rotate in a position of 3 degrees without dead angles, and meanwhile, in order to facilitate the disassembly of the workpiece, the control panel 50 should be rotated out of the workbench 31 when the equipment is in operation.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A numerical control woodworking outside arc surface milling machine is characterized by comprising a cutting device, a feeding device, a positioning device, a dust removal device, a rotary workbench (31), a machine body and an automatic control system;
the rotary worktable (31) is horizontally arranged above the lathe bed; the bottom of the cutting device is arranged on the lathe bed, and the upper part of the cutting device is arranged on the side surface of the rotary workbench (31); the feeding devices are arranged above and below the lathe bed and are respectively used for driving the cutting device and the rotary working table (31); the positioning device is arranged on the rotary workbench (31), and the dust removal device is arranged above a cutter (4) of the cutting device; the automatic control system is respectively electrically connected with the feeding device and the dust removal device.
2. Numerical control woodworking extrados milling machine according to claim 1, characterized in that said feeding means comprise a tool spindle motor (42) arranged above the bed and a table motor (23) arranged below the bed.
3. The numerical control woodworking exterior surface milling machine according to claim 2, wherein the cutter shaft motor (42) is mounted on a motor plate (43), the motor plate (43) is mounted on a motor base (52), and the position of the motor plate (43) is adjusted through an adjusting bolt (45) on a motor base adjusting block (44); the motor base (52) is arranged on a dovetail upper guide rail (53), and a dovetail lower guide rail (54) matched with the dovetail upper guide rail (53) is arranged on a main frame body (48) of the machine body; a fixed shaft sleeve (9) of the cutting device is arranged on a motor base (52); the dovetail guide rail (53) on the rotary dovetail guide rail adjusting screw rod (55) slides, so that the position of the cutting device can be adjusted, and the processing depth of a cutter (4) of the cutting device is further changed; the cutter shaft motor flat belt wheel (46) at the bottom of the cutter shaft motor (42) is connected with a flat belt wheel (12) of a cutter main shaft (1) of the cutting device, and the cutter shaft motor flat belt wheel (46) adopts an arc-shaped structure.
4. The numerical control woodworking outside arc surface milling machine as claimed in claim 1, wherein the workbench motor (23) is mounted on a main frame motor base (22), and an adjusting bolt (47) is used for tensioning a transmission triangular belt; the workbench motor (23) is connected with the main shaft belt pulley (25) through the motor belt pulley (24), the main shaft belt pulley (25) of the workbench is arranged at the bottom of the main shaft (26) of the workbench, the main shaft (26) of the workbench is fixed on the rotary platform seat (27) through the tapered roller bearing (28), and the rotary platform seat (27) is vertically arranged on the upper plane of the main frame body (48); the rotary worktable (31) is arranged at the upper end of the worktable spindle (26), the plane of the rotary worktable (31) is vertical to the axis of the worktable spindle (26), and the worktable spindle (26) is parallel to the cutter spindle (1).
5. The numerical control woodworking exterior arc surface milling machine as claimed in claim 1, wherein the positioning device comprises an inner positioning ring (32), a plurality of positioning blocks (30) and a workpiece locking device, the inner positioning ring (32) is mounted on a rotary workbench (31), an inner hole of the inner positioning ring (32) is sleeved on the top of a workbench main shaft (26), the axis of the inner positioning ring coincides with the workbench main shaft (26), and a dust guard (33) is arranged at an upper opening of the inner positioning ring (32); the positioning blocks (30) are arranged on the upper plane of the rotary workbench (31), and the positioning blocks (30) are uniformly distributed according to the size circumference of the two side edges of the workpiece; the workpiece locking device comprises a locking hand wheel (39), a locking screw rod (37), a locking seat (40), a locking nut (38), a locking block (36), a locking guide seat (35) and a locking block pressure pad (34), the locking seat (40) is arranged on the workbench main shaft (26), the locking nut (38) is fixed on the locking seat (40), the locking screw rod (37) is in threaded fit with the locking nut (38), one end of the locking screw rod (37) is provided with the locking hand wheel (39), the other end is connected with the locking block (36), the locking block (36) is in universal connection with the locking screw rod (37), can rotate freely; the locking guide seat (35) is arranged on the dust guard (33), the other end of the locking guide seat is sleeved on the locking block (36), and a workpiece is pressed towards the center direction of the main shaft when the locking block (36) is locked; the locking block pressure pad (34) is arranged on the end surface of the locking block (36), and N convex points are arranged at the locking block pressure pad and the working station of the workbench.
6. The numerical control woodworking outside arc surface milling machine according to claim 1, wherein the cutting device comprises a tool spindle (1), a tool (4), a moving shaft sleeve (8), a fixed shaft sleeve (9) and a flat belt pulley (12), one end of the tool spindle (1) is coaxially and rigidly connected with the flat belt pulley (12), the other end of the tool spindle is sleeved with the tool (4), the flat belt pulley (12) can drive the tool (4) fixed on the tool spindle to do rotary cutting motion, and the dimension of the cutting edge of the axial section of the tool (4) is the same as the dimension of the section of a workpiece to be processed; the end part of a cutter main shaft (1) sleeved with a cutter (4) is in threaded connection with a cutter locking nut (2), and a cutter gasket (3) is arranged between the cutter locking nut (2) and the cutter (4);
the cutter main shaft (1) is installed in the movable shaft sleeve (8) through a bearing (7) in a matching mode, the bearing gland (6) and the sealing ring (5) are sealed in an axial labyrinth mode, and sawdust and dust can be prevented from entering the bearing; the utility model discloses a motor, including removal axle sleeve (8), fixed axle sleeve (9), removal axle sleeve (8) external diameter and fixed axle sleeve (9) internal diameter adopt clearance fit, can adjust the position of removal axle sleeve (8) in fixed axle sleeve (9) at any time, and install on motor cabinet (52) fixed axle sleeve (9), the one end that removes axle sleeve (8) and is close to flat belt pulley (12) is fixed with bearing end cover (11), be fixed with adjusting nut (17) on bearing end cover (11), fixed mounting adjusts support (18) on fixed axle sleeve (9), and adjusting screw (15) one end is passed through pressure bearing (19) and lock nut (20) and is installed on support (18), and the other end and adjusting nut (17) screw-thread fit, and fixed axle sleeve (9 both ends are equipped with opening locking mode respectively, installs first lock bolt (21), and rotatory adjusting screw (15) can change the position of removing axle sleeve (8) and fixed axle sleeve (9) axis, the first lock nut (21) is loosened before adjustment, and the first lock nut (21) is locked after adjustment.
7. The numerical control woodworking outside arc surface milling machine according to claim 6, further comprising a baffle ring (10), wherein the baffle ring (10) is installed between a bearing of the tool spindle (1) and the flat belt pulley (12).
8. The numerical control woodworking extrados milling machine according to claim 6, further comprising a gasket (13), wherein the gasket (13) is mounted at the end of the cutter spindle (1) and fixes the flat belt pulley (12) through a second locking bolt (14) and a flat key.
9. The numerical control woodworking exterior surface milling machine according to claim 1, further comprising a cylindrical cutter protection cover (41), wherein the cutter protection cover (41) is sleeved on the outer side of the cutter, and an opening is formed in one side, facing a workpiece to be machined, of the cutter protection cover (41); on the protective cover (41), a dust removal port is arranged in the parabolic direction of the wood cutting scraps by the cutter, and the dust removal port is communicated with dust removal equipment.
10. The numerical control woodworking extrados milling machine as claimed in claim 1, wherein the automatic control system comprises a control panel (50) and a distribution box (56), a touch screen is mounted on the control panel (50), the control panel (50) is arranged above the bed body through a plurality of rotating control panel rotating shafts (51), the distribution box (56) is arranged below the bed body, and the control panel (50) and the distribution box (56) are separately arranged.
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| CN202010972726.7A CN111941553A (en) | 2020-09-16 | 2020-09-16 | Numerical control woodworking outer arc surface milling machine |
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| CN202010972726.7A CN111941553A (en) | 2020-09-16 | 2020-09-16 | Numerical control woodworking outer arc surface milling machine |
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