CN114260799A - Grinding device for wood working with centre gripping fixed knot constructs - Google Patents

Abstract

The invention discloses a polishing device with a clamping and fixing structure for wood processing, and belongs to the field of wood processing equipment. A clamping mechanism for clamping is arranged on the machine body, and a polishing device is fixedly connected to the upper end of the machine body; grinding device includes electric putter, strutting arrangement, the installation shell, self-adaptation mechanism, ordinary motor and the board of polishing, strutting arrangement passes through the upper end that connecting device is connected to the organism, electric putter fixed connection is to strutting arrangement, electric putter's lower extreme fixed connection has the installation shell, the ordinary motor of fixedly connected with on the installation shell, the lower extreme fixedly connected with self-adaptation mechanism of ordinary motor, self-adaptation mechanism's lower extreme is provided with the board of polishing, self-adaptation mechanism is used for compensating the inclination of the board of polishing, it is undulant to be the angle of certain limit through self-adaptation mechanism messenger's the board of polishing along the motor shaft, thereby the surface of laminating curved surface that can be better, realize polishing of timber curved surface.

Description

Grinding device for wood working with centre gripping fixed knot constructs

Technical Field

The invention relates to the field of wood processing equipment, in particular to a polishing device with a clamping and fixing structure for wood processing.

Background

The wood processing is processing by using wood as a raw material and mainly using a mechanical or chemical method, the product still maintains the basic characteristics of the wood, in the forest industry, the wood processing industry and the forest chemical processing are the subsequent industries of forest felling and transportation and are important departments of comprehensive utilization of wood resources, and the wood processing technology comprises basic processing technologies of wood cutting, wood drying, wood gluing, wood surface polishing and the like and wood protection and wood modification function processing technologies.

Good timber is used for making furniture usually, the timber surface for furniture can be the curved surface (like the tea seat) sometimes, timber is polished and is often required fixed timber, polish usually for artifical polishing among the prior art, it is very time-consuming and energy-consuming, and grinding device among the prior art can only be polished along the plane when polishing, then can't reach the purpose of polishing when meetting the curved surface, can hard collision sometimes even, damage timber or grinding tool, can not satisfy the demand that the curved surface was polished, consequently, provide a grinding device for wood working convenient to polish the curved surface.

Disclosure of Invention

The invention provides a polishing device with a clamping and fixing structure for wood processing, which can solve the problem that curved surfaces are inconvenient to polish in the prior art.

The utility model provides a grinding device for wood working with centre gripping fixed knot constructs, includes organism, grinding device and clamping mechanism, wherein:

the machine body is provided with the clamping mechanism for clamping, and the upper end of the machine body is fixedly connected with the polishing device;

grinding device includes electric putter, strutting arrangement, installation shell, self-adaptation mechanism, ordinary motor and the board of polishing, strutting arrangement passes through connecting device and is connected to the upper end of organism, electric putter fixed connection to strutting arrangement, electric putter's lower extreme fixed connection have the installation shell, fixedly connected with on the installation shell ordinary motor, the lower extreme fixedly connected with of ordinary motor self-adaptation mechanism, self-adaptation mechanism's lower extreme is provided with the board of polishing, self-adaptation mechanism is used for compensating the inclination of board of polishing.

Further, still include first servo motor connecting device includes second lead screw and supporting seat, supporting seat fixed connection to the upper end of organism, fixedly connected with on the supporting seat first servo motor, rotationally be connected with on the supporting seat the second lead screw, first servo motor transmission is connected to the second lead screw, strutting arrangement has seted up the cooperation the second mating holes of second lead screw, the second lead screw with the cooperation of second mating holes, strutting arrangement slidable ground is connected to the upper end of organism.

Furthermore, the open end of the supporting device is fixedly connected with a dovetail sliding block, a dovetail sliding groove is formed in the upper end of the machine body, and the dovetail sliding block is slidably connected to the dovetail sliding groove.

Furthermore, a second guide rod is fixedly connected to the upper end of the machine body corresponding to the second lead screw, and the supporting device is slidably connected to the second guide rod.

Furthermore, the supporting device comprises a supporting vertical plate and a supporting transverse plate, the supporting vertical plate is connected to the machine body through the connecting device, the supporting transverse plate is arranged on the supporting vertical plate, and the electric push rod is fixedly connected to the supporting transverse plate.

Further, strutting arrangement still includes first lead screw and second servo motor, second servo motor fixed connection to support the riser, rotationally be connected with on the support riser first lead screw, second servo motor transmission is connected to first lead screw, it is used for the cooperation to support the diaphragm first mating holes of first lead screw, first lead screw with first mating holes cooperation is connected.

Furthermore, the supporting vertical plate is fixedly connected with a first guide rod corresponding to the first lead screw, and the supporting transverse plate is slidably connected to the first guide rod.

Further, the self-adaptive mechanism comprises a connecting column, a fixed block, a first spring, a sliding rod, a gear and a rack, the connecting column is fixedly connected on the fixing block, the common motor is connected to the connecting column in a driving way, the lower end of the fixed block is provided with a mounting groove, the mounting groove is provided with rack sliding grooves in mirror symmetry, the rack sliding groove is connected with the rack in a sliding way, the upper end of the mounting groove is also provided with a first sliding groove, the first sliding chute is connected with the sliding rod in a sliding way, the upper end of the sliding rod is fixedly connected with one end of the first spring, the other end of the first spring is fixedly connected to the first sliding chute, the sliding rod is rotatably connected with the gear, the two racks are meshed with the gear, the lower end of the rack is fixedly connected with a hinged rod, and the lower end of the hinged rod is hinged to the upper end of the grinding plate in a spherical mode.

Furthermore, the lower end of the polishing plate is detachably connected with a polishing sheet.

Has the advantages that: according to the polishing device with the clamping and fixing structure for wood processing, the polishing plate can fluctuate in a certain range of angles along the rotating shaft of the motor through the self-adaptive mechanism, so that the surface of a curved surface can be better attached, and the polishing of the curved surface of the wood can be realized.

Drawings

FIG. 1 is a front view of a sanding device for wood working with a clamping fixture according to the present invention;

FIG. 2 is a top view of a sanding device for wood working with a clamping fixture according to the present invention;

FIG. 3 is an enlarged view of a portion of the structure at A in FIG. 1;

FIG. 4 is an enlarged view of a portion of the structure at B in FIG. 1;

FIG. 5 is an enlarged view of a portion of the structure at D in FIG. 1;

FIG. 6 is an enlarged view of a portion of the structure at C in FIG. 1;

FIG. 7 is an enlarged view of a portion of the structure at E in FIG. 6;

fig. 8 is a schematic control relationship diagram of a sanding device for wood working with a clamping and fixing structure according to the present invention.

Description of reference numerals:

1-machine body, 11-storage plate, 111-fastening screw, 13-sealing plate, 14-sealing groove, 15-mounting plate, 151-slideway, 152-dust-collecting cavity, 2-vacuum machine, 21-exhaust pipe, 3-polishing device, 31-electric push rod, 32-supporting vertical plate, 33-supporting transverse plate, 34-first screw rod, 35-mounting shell, 36-self-adapting mechanism, 361-connecting column, 362-fixing block, 363-mounting groove, 364-first sliding groove, 365-first spring, 366-sliding rod, 367-gear, 368-rack, 37-second screw rod, 38-common motor, 39-supporting seat, 30-polishing plate 4-clamping mechanism, 41-sealing shell and 42-supporting rod, 421-sealing lug, 422-second spring, 43-connecting pipe, 44-first solenoid valve, 45-limiting lug, 46-second solenoid valve, 47-sealing pipe, 48-button, 49-supporting head, 491-connecting terminal female, 492-connecting terminal, 493-female cavity, 494-sub cavity, 495-third spring, 496-contact nozzle, 497-sealing rubber, 5-first servo motor, 6-second servo motor, 7-positioning device, 71-positioning slider, 72-rotating shell, 73-limiting block, 74-ejector rod and 75-rubber head.

Detailed Description

An embodiment of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the embodiment.

Specific example 1:

as shown in fig. 1 to 4, a grinding device for wood working with a clamping and fixing structure according to an embodiment of the present invention includes a machine body 1, a grinding device 3, and a clamping mechanism 4, wherein:

a clamping mechanism 4 for clamping is arranged on the machine body 1, and a polishing device 3 is fixedly connected to the upper end of the machine body 1;

the polishing device 3 comprises an electric push rod 31, a supporting device, an installation shell 35, a self-adaptive mechanism 36, a common motor 38 and a polishing plate 30, the supporting device is connected to the upper end of the machine body 1 through a connecting device, the electric push rod 31 is fixedly connected to the supporting device, the lower end of the electric push rod 31 is fixedly connected to the installation shell 35, the common motor 38 is fixedly connected to the installation shell 35, the self-adaptive mechanism 36 is fixedly connected to the lower end of the common motor 38, the polishing plate 30 is arranged at the lower end of the self-adaptive mechanism 36, and the self-adaptive mechanism 36 is used for compensating the inclination angle of the polishing plate 30;

self-adaptation mechanism 36 includes spliced pole 361, fixed block 362, first spring 365, slide bar 366, gear 367 and rack 367, fixedly connected with spliced pole 361 on fixed block 362, ordinary motor 38 drive is connected to spliced pole 361, mounting groove 363 has been seted up to the lower extreme of fixed block 362, rack 367 spout has been seted up to mounting groove 363 mirror symmetry, rack 367 spout slidable connection has rack 367, first spout 364 has still been seted up to the upper end of mounting groove 363, first spout 364 slidable connection has slide bar 366, the one end of the first spring 365 of upper end fixed connection of slide bar 366, the other end fixed connection of first spring 365 is to first spout 364, slide bar 366 rotatably is connected with gear 367, two rack 367 all mesh with the gear, the lower extreme fixedly connected with hinge pole of rack 367, the lower extreme ball hinge of hinge pole connects to the upper end of polishing plate 30.

A polishing pad is detachably attached to the lower end of the polishing plate 30.

When the device is used, a wood plate to be polished is clamped on the machine body 1 through the clamping device, the electric push rod 31 is started, the electric push rod 31 drives the mounting shell 35 and drives the common motor 38 to be pressed down to the upper surface of the wood plate, when the grinding plate 30 is contacted with the curved surface of the wood board, the ball grinding plate 30 inclines, the hinge rod drives the rack 367 to slide in the sliding groove of the rack 367, when the forces applied to the two racks 367 are unbalanced, the racks 367 apply a torque to the gears 367 to drive the gears 367 to rotate, thereby balancing the forces borne by the two racks 367, realizing angle compensation, ensuring that the polishing force is more uniform on the surface, improving the polishing effect, when the common motor 38 drives the fixed block 362 to rotate, the rack 367 can be repeatedly adjusted and balanced in the sliding groove of the rack 367 to realize the uniform transmission of the grinding force, when a large recess is encountered during polishing, the first spring 365 pushes the first sliding rod 366 to move for distance compensation, so that the polishing force can provide more uniform polishing force on a curved surface with a large fall.

Specific example 2:

in embodiment 1, since the polishing device 3 needs to be moved during polishing, the labor intensity of an operator is reduced, and in order to facilitate linear polishing of the polishing device 3, on the basis of embodiment 1, as shown in fig. 1 to 4, in this embodiment, the supporting device includes a supporting vertical plate 32 and a supporting transverse plate 33, the supporting vertical plate 32 is connected to the machine body 1 through a connecting device, the supporting transverse plate 33 is disposed on the supporting vertical plate 32, and the electric push rod 31 is fixedly connected to the supporting transverse plate 33.

The supporting device further comprises a first lead screw 34 and a second servo motor 6, the second servo motor 6 is fixedly connected to a supporting vertical plate 32, the supporting vertical plate 32 is rotatably connected with the first lead screw 34, the second servo motor 6 is connected to the first lead screw 34 in a transmission mode, a first matching hole used for matching the first lead screw 34 is formed in the supporting transverse plate 33, and the first lead screw 34 is connected with the first matching hole in a matching mode.

The supporting vertical plate 32 is fixedly connected with a first guide rod corresponding to the first lead screw 34, and the supporting transverse plate 33 is slidably connected to the first guide rod.

When linear when polishing along the straight line when needs, start second servo motor 6, second servo motor 6 drives first lead screw 34 and rotates, first lead screw 34 drives and supports diaphragm 33 linear movement, it drives electric putter 31 and removes to support diaphragm 33, electric putter 31 drives installation shell 35 and ordinary motor 38 and removes, ordinary motor 38 drives grinding device 3 and the linear movement of board 30 of polishing and rotation, the realization is polished, the manpower is saved, first guide arm further promotes the direction effect, it is more stable to make the removal.

Specific example 3:

in embodiment 2, since the polishing of the wood board is generally a surface area, in order to achieve continuous polishing of a curved surface, labor intensity of an operator is reduced, and efficiency is improved, on the basis of embodiment 2, as shown in fig. 1 to 4, in this embodiment, the wood board polishing machine further includes a first servo motor 5, the connecting device includes a second lead screw 37 and a supporting seat 39, the supporting seat 39 is fixedly connected to the upper end of the machine body 1, the first servo motor 5 is fixedly connected to the supporting seat 39, the second lead screw 37 is rotatably connected to the supporting seat 39, the first servo motor 5 is connected to the second lead screw 37 in a transmission manner, the supporting device is provided with a second matching hole matching with the second lead screw 37, the second lead screw 37 is matched with the second matching hole, and the supporting device is slidably connected to the upper end of the machine body 1.

The open end of the supporting device is fixedly connected with a dovetail sliding block, the upper end of the machine body 1 is provided with a dovetail sliding groove, and the dovetail sliding block is slidably connected to the dovetail sliding groove.

When polishing is needed along the other direction, the first servo motor 5 is started, the first servo motor 5 drives the second lead screw 37 to rotate, the second lead screw 37 drives the supporting vertical plate 32 to linearly move, the supporting vertical plate 32 drives the supporting transverse plate 33 to move, the supporting transverse plate 33 drives the electric push rod 31 to move, the electric push rod 31 drives the mounting shell 35 and the common motor 38 to move, the common motor 38 drives the polishing device 3 and the polishing plate 30 to linearly move and rotate, polishing is achieved, manpower is saved, the supporting vertical plate 32 and the support are in sliding connection with the dovetail sliding groove through the dovetail sliding block, more stable guiding is achieved, and the second guide rod further improves the guiding effect and enables the movement to be more stable;

the first servo motor 5 and the second servo motor 6 are controlled by the controller to be matched and started, so that the polishing surface area can be realized, and continuous polishing can be realized.

The operation steps are as follows:

step 1: clamping the workpiece on the clamping mechanism 4;

step 2: the electric push rod 31 is started, the electric push rod 31 drives the mounting shell 35 and drives the common motor 38 to be pressed down to the upper surface of the wood board, when the polishing plate 30 is in contact with the curved surface of the wood board, the spherical polishing plate 30 inclines, the hinge rod drives the racks 367 to slide in the sliding grooves of the racks 367, when the forces borne by the two racks 367 are unbalanced, the racks 367 give torques to the gears 367 to drive the gears 367 to rotate, so that the forces borne by the two racks 367 are balanced, angle compensation is realized, the polishing force is more uniform on the surface, and the polishing effect is improved;

and step 3: when the common motor 38 is started, and the common motor 38 drives the fixing block 362 to rotate, the rack 367 can be repeatedly adjusted and balanced in the sliding groove of the rack 367, so that the grinding force can be uniformly transmitted, and when a large recess is encountered during grinding, the first spring 365 pushes the first sliding rod 366 to move for distance compensation, so that the grinding force can provide more uniform grinding force on a curved surface with a large fall;

and 4, step 4: the second servo motor 6 is started, the second servo motor 6 drives the first lead screw 34 to rotate, the first lead screw 34 drives the supporting transverse plate 33 to move linearly, the supporting transverse plate 33 drives the electric push rod 31 to move, the electric push rod 31 drives the mounting shell 35 and the common motor 38 to move, the first guide rod further improves the guiding effect, and the movement is more stable;

and 5: the first servo motor 5 is started, the first servo motor 5 drives the second lead screw 37 to rotate, the second lead screw 37 drives the supporting vertical plate 32 to linearly move, the supporting vertical plate 32 drives the supporting transverse plate 33 to move, the supporting vertical plate 32 and the supporting transverse plate are connected with the dovetail sliding groove in a sliding mode through the dovetail sliding block, more stable guiding is achieved, and the second guide rod further improves the guiding effect and enables the movement to be more stable;

specific example 4:

in the embodiment 1-3, because the curved surface wood board is difficult to clamp, the surface of the wood is usually damaged by rigid clamping, and the curved surface is convenient to clamp, on the basis of the embodiment 1-3, as shown in fig. 1 to 2 and 6, a sealing plate 13 is fixedly connected inside the machine body 1, the sealing plate 13 divides the inner cavity of the machine body 1 into an air suction cavity and an installation cavity, a mounting plate 15 is fixedly connected in the installation cavity, and the installation cavity is divided into an abdicating cavity and a clamping cavity by the mounting plate 15;

the vacuum pump 2 is fixedly connected to the air pumping cavity, the vacuum pump 2 is used for pumping air in the air pumping cavity out of the air pumping cavity, and the mounting plate 15 is fixedly connected with a plurality of clamping mechanisms 4;

the clamping mechanism 4 comprises a sealing shell 41, a support rod 42, a connecting pipe 43, a first electromagnetic valve 44 and a sealing pipe 47, the sealing shell 41 is fixedly connected to the upper end of the mounting plate 15, the sealing shell 41 is hollow, the connecting rod vertically penetrates through the sealing shell 41, a sealing bump 421 is fixedly connected to the connecting rod inside the sealing shell 41, the sealing bump 421 is in dynamic sealing connection with the inner cavity of the sealing shell 41, the connecting rod is in dynamic sealing connection with the inner cavity of the sealing shell 41, a second spring 422 is arranged in the sealing shell 41, the second spring 422 is sleeved on the connecting rod, the second spring 422 is located at the lower end of the sealing bump 421, an air duct is vertically arranged in the middle of the connecting rod, the sealing pipe 47 is arranged at the lower end of the connecting rod, a sealing groove 14 is arranged on the sealing plate 13, the sealing pipe 47 is slidably connected to the sealing groove 14, the sealing pipe 47 is in dynamic sealing connection with the sealing groove 14, and the first electromagnetic valve 44 is fixedly connected to the connecting pipe 43, the first electromagnetic valve 44 is used for controlling the on-off of the connecting pipe 43, two ends of the connecting pipe 43 are respectively connected to the inside of the sealed shell 41 at the upper end of the sealing bump 421 and the inside of the sealed shell 41 at the lower end of the sealing bump 421 in a penetrating manner, and the first electromagnetic valve 44 is connected to the controller in a signal manner;

the inside of the seal case 41 is filled with hydraulic oil;

the connecting rod is connected with the sealing pipe 47 through a second electromagnetic valve 46, the second electromagnetic valve 46 is used for controlling the connection and disconnection of the connecting rod and the sealing pipe 47, and the second electromagnetic valve 46 is in signal connection with the controller;

the part of the connecting rod in the cavity of stepping down is fixedly connected with a limit bump 45, a button 48 is arranged at the position of the lower end of the mounting plate 15 corresponding to the limit bump 45, and the button 48 is in signal connection with the controller.

Before clamping the workpiece, pressing a stop switch, resetting the first electromagnetic valve 44 and the second electromagnetic valve 46, namely the controller receives a signal from the stop switch, sending a control signal to the first electromagnetic valve 44 and the second electromagnetic valve 46 by the controller, and conducting the first electromagnetic valve 44 and the second electromagnetic valve 46;

when a workpiece is clamped, the workpiece is placed at the upper end of the clamping mechanism 4, under the action of gravity, the part, protruding downwards, of the lower end face of the workpiece is firstly contacted with the clamping mechanism 4 to drive the supporting rod 42 to move downwards, in the downward moving process, the lower end face of the workpiece is gradually contacted with the clamping mechanism 4 until the stress is uniform, in the downward moving process of the supporting rod 42, the limiting lug 45 leaves the button 48, and the button 48 is loosened, namely the button 48 of the clamping mechanism 4 contacted with the workpiece is loosened;

then the starting switch is pressed down, the controller receives a signal from the starting switch, the controller sends a control signal to the first electromagnetic valve 44 to close the first electromagnetic valve 44, so that the supporting rod 42 is kept stable under the action of hydraulic oil, the controller which receives a signal of releasing the signal of the button 48 sends a control signal to the second electromagnetic valve 46 of the clamping mechanism 4 which does not send a signal of releasing the button 48, so that the corresponding second electromagnetic valve 46 is closed, the second electromagnetic valve 46 on the supporting rod 42 which is not in contact with the workpiece closes a connecting passage between the air suction cavity and the air passage, then the controller sends a signal to the vacuum machine 2, the vacuum machine 2 is started, the vacuum machine 2 pumps air out of the air suction cavity to the outside of the air suction cavity, the air suction cavity is communicated with the air passage, the workpiece is pressed on the upper end of the supporting rod 42 under the action of atmospheric pressure to clamp the workpiece, so that stable clamping force can be provided, and the surface of the workpiece is not easy to damage, the laminating curved surface that can be better presss from both sides tightly.

Specific example 5:

in embodiment 4, because there may be a gap between the supporting rod 42 and the curved surface of the wood board, in order to make the supporting rod 42 better fit the curved surface, on the basis of embodiment 4, as shown in fig. 1 to 2 and 6 to 7, the upper end of the connecting rod is fixedly connected with the supporting head 49, the supporting head 49 includes a connecting terminal mother 491, a connecting terminal 492 and a third spring 495, the connecting terminal mother 491 is fixedly connected to the upper end of the connecting rod, the connecting terminal mother 491 is provided with a spherical mother cavity 493, the mother cavity 493 is connected to the air duct in a penetrating manner, the connecting terminal 492 is matched with the mother cavity 493 in shape, the connecting terminal 492 is provided with a sub-cavity 494 in an penetrating manner, the upper end of the connecting terminal 492 is fixed with a first conduit, the first conduit is connected to the sub-cavity 494 in a penetrating manner, the upper end of the connecting terminal mother 491 is provided with a first abdicating chamfer for movement abdicating of the connecting terminal 492, the second chamfer of stepping down that is used for increasing the area of intercommunication is offered to the lower extreme of sub-chamber 494, and first pipe box is equipped with third spring 495, and the one end fixed connection of third spring 495 is mother 491, the other end fixed connection to connecting terminal 492 at the link.

A contact nozzle 496 is fixedly connected to the upper end of the first pipeline, the contact nozzle 496 is connected to the sub-cavity 494 in a penetrating manner, and the cross section of a through hole at one end of the contact nozzle 496, which is far away from the first pipeline, is larger than that of a through hole at one end of the contact nozzle 496, which is close to the first pipeline.

When the work piece contacts with supporting head 49, connecting terminal 492 takes place to rotate in the female 491 of link under the action of gravity, the surface of laminating curved surface that can be better, and the sealing rubber 497 on the contact nozzle 496 can further promote sealed effect, improves clamping stability, and when the work piece left clamping mechanism 4, under the effect of third spring 495 again, connecting terminal 492 can keep vertical, realizes reseing, the clamp of being convenient for next time.

Specific example 6:

in embodiment 5, because the supporting rod 42 and the curved surface of the wood board may have a gap, in order to make the supporting rod 42 better fit the curved surface, on the basis of embodiment 4, as shown in fig. 1 to 2 and 5 to 7, the fixing device 7 further includes a plurality of criss-cross slideways 151 formed on the connecting plate, the fixing device 7 includes a positioning slider 71, a rotating shell 72, a limiting block 73 and a push rod 74, the slider is slidably connected to the slideways 151, the rotating shell 72 is rotatably connected to the positioning slider 71, the upper end of the positioning slider 71 is fixedly connected with the limiting block 73, the push rod 74 is slidably connected to the limiting block 73, the limiting block 73 is used for limiting the rotation of the push rod 74, an external thread is formed on the outer side of the push rod 74, and an internal thread is formed on the inner side of the rotating shell 72, and the external thread is in fit connection with the internal thread.

The connecting plate is also provided with a dust collecting cavity 152 inside, the air outlet of the vacuum machine 2 is communicated and connected with the dust collecting cavity 152 through the exhaust duct 21, and the slideway 151 is communicated and connected with the dust collecting cavity 152.

The outer side of the machine body 1 is detachably connected with a storage plate 11 through a fastening screw 111, the storage plate 11 is formed with the side wall of the machine body 1, and a dust collection chamber 152 is penetratingly connected to the storage chamber.

The method comprises the following operation steps:

s1: placing the workpiece on the clamping mechanism 4;

s2: pressing down the stop switch, the controller receiving the signal from the stop switch, the controller sending control signal to the first solenoid valve 44 and the second solenoid valve 46, the first solenoid valve 44 being conducted and the second solenoid valve 46 being conducted;

s3: the workpiece is contacted with the supporting head 49, the connecting terminal 492 rotates in the connecting terminal 491 under the action of gravity, and the contact mouth 496 is attached to the surface of the curved surface;

s4: under the action of gravity, the part of the lower end face of the workpiece protruding downwards is firstly contacted with the clamping mechanism 4 to drive the supporting rod 42 to move downwards, the lower end face of the workpiece is gradually contacted with the clamping mechanism 4 in the downward moving process until the stress is uniform, the limiting lug 45 leaves the button 48 in the downward moving process of the supporting rod 42, and the button 48 is released, namely the buttons 48 of the clamping mechanism 4 contacted with the workpiece are all released;

s5: the method comprises the following steps of positioning a workpiece: moving a plurality of positioning devices 7 to the lower part of a workpiece along a slide way 151 through a positioning slide block 71, rotating a rotating shell 72, driving a push rod 74 to ascend by the rotating shell 72, limiting a limit block 73 to limit the rotation of the push rod 74 and guiding until a rubber head 75 is contacted with the lower surface of the workpiece, and realizing self-locking of external threads and internal threads under the action of gravity to provide stable supporting force;

s6: the starting switch is pressed, the controller receives a signal from the starting switch, and the controller sends a control signal to the first electromagnetic valve 44 to close the first electromagnetic valve 44, so that the supporting rod 42 is kept stable under the action of the hydraulic oil;

s7: the controller which receives the signal of the button 48 sends a control signal to the second electromagnetic valve 46 of the clamping mechanism 4 which does not send the signal of the button 48, so that the corresponding second electromagnetic valve 46 is closed, and the second electromagnetic valve 46 on the support rod 42 which is not contacted with the workpiece closes the connecting passage of the suction cavity and the air passage;

s8: the controller sends a signal to the vacuum machine 2, the vacuum machine 2 is started, the vacuum machine 2 pumps air out of the air pumping cavity, the air pumping cavity is communicated with the air passage, and the workpiece is tightly pressed at the upper end of the supporting rod 42 under the action of atmospheric pressure to realize clamping of the workpiece.

S9: the grinding device 3 is started.

The above disclosure is only for a few specific embodiments of the present invention, however, the present invention is not limited to the above embodiments, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.

Claims (9)

1. The utility model provides a grinding device for wood working with centre gripping fixed knot constructs which characterized in that, includes organism (1), grinding device (3) and clamping mechanism (4), wherein:

the machine body (1) is provided with the clamping mechanism (4) for clamping, and the upper end of the machine body (1) is fixedly connected with the polishing device (3);

grinding device (3) include electric putter (31), strutting arrangement, installation shell (35), adaptive mechanism (36), ordinary motor (38) and board (30) of polishing, strutting arrangement is connected to through connecting device the upper end of organism (1), electric putter (31) fixed connection to strutting arrangement, the lower extreme fixed connection of electric putter (31) has installation shell (35), fixedly connected with is gone up in installation shell (35) ordinary motor (38), the lower extreme fixedly connected with of ordinary motor (38) adaptive mechanism (36), the lower extreme of adaptive mechanism (36) is provided with board (30) of polishing, adaptive mechanism (36) are used for compensating the inclination of board (30) of polishing.

2. The grinding device with clamping and fixing structure for wood processing as recited in claim 1, further comprising a first servo motor (5), wherein said connecting device comprises a second lead screw (37) and a supporting base (39), said supporting base (39) is fixedly connected to the upper end of said machine body (1), said first servo motor (5) is fixedly connected to said supporting base (39), said second lead screw (37) is rotatably connected to said supporting base (39), said first servo motor (5) is drivingly connected to said second lead screw (37), said supporting device is provided with a second engaging hole for engaging said second lead screw (37), said second lead screw (37) is engaged with said second engaging hole, and said supporting device is slidably connected to the upper end of said machine body (1).

3. The sanding device for wood working with clamping and fixing structure as defined in claim 2, characterized in that the open end of the supporting device is fixedly connected with a dovetail slide block, the upper end of the machine body (1) is provided with a dovetail slide groove, and the dovetail slide block is slidably connected to the dovetail slide groove.

4. A grinding device for wood working with a clamping fixture according to claim 2 or 3, characterized in that the upper end of the machine body (1) corresponding to the second lead screw (37) is further fixedly connected with a second guide rod, and the support device is slidably connected to the second guide rod.

5. A sanding device for wood working with a clamping fixture as defined in claim 1, characterized in that the support means includes a support riser (32) and a support cross plate (33), the support riser (32) being connected to the machine body (1) by the connecting means, the support cross plate (33) being provided on the support riser (32), the electric push rod (31) being fixedly connected to the support cross plate (33).

6. The grinding device with a clamping and fixing structure for wood processing as claimed in claim 5, wherein the supporting device further comprises a first lead screw (34) and a second servo motor (6), the second servo motor (6) is fixedly connected to the supporting vertical plate (32), the first lead screw (34) is rotatably connected to the supporting vertical plate (32), the second servo motor (6) is connected to the first lead screw (34) in a transmission manner, the supporting transverse plate (33) is provided with a first matching hole for matching with the first lead screw (34), and the first lead screw (34) is connected with the first matching hole in a matching manner.

7. The grinding device with clamping fixture for wood working of claim 6, characterized in that the supporting vertical plate (32) is fixedly connected with a first guide bar corresponding to the first lead screw (34), and the supporting cross plate (33) is slidably connected to the first guide bar.

8. The grinding device with the clamping and fixing structure for the wood processing as recited in claim 1, wherein the adaptive mechanism (36) comprises a connecting column (361), a fixing block (362), a first spring (365), a sliding rod (366), a gear (367) and a rack (367), the connecting column (361) is fixedly connected to the fixing block (362), the common motor (38) is in driving connection with the connecting column (361), a mounting groove (363) is formed in the lower end of the fixing block (362), the rack (367) is formed in the mounting groove (363) in a mirror symmetry manner, the rack (367) is slidably connected to the rack (367) in a sliding manner, a first sliding groove (364) is further formed in the upper end of the mounting groove (363), the sliding rod (366) is slidably connected to the first sliding groove (364), and the upper end of the sliding rod (366) is fixedly connected to one end of the first spring (365), the other end of the first spring (365) is fixedly connected to the first sliding chute (364), the sliding rod (366) is rotatably connected with the gear (367), the two racks (367) are meshed with the gear (367), the lower end of each rack (367) is fixedly connected with a hinge rod, and the lower end of the hinge rod is spherically hinged to the upper end of the polishing plate (30).

9. A sanding device for wood working with a clamping fixture as defined in claim 1, characterized in that a sanding sheet is detachably attached to the lower end of the sanding plate (30).

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