CN208250785U - Multifunctional tool bit and sofa cover for seat cutting machine comprising it - Google Patents

Abstract

The utility model discloses a kind of Multifunctional tool bit and include its sofa cover for seat cutting machine.Multifunctional tool bit includes sliding rail mounting plate, cylinder mounting plate, bushing fixed plate, the first driving motor, the second driving motor and two cutter head units.Cylinder mounting plate and bushing fixed plate are connected to the top and bottom end of sliding rail mounting plate, and cylinder mounting plate is equipped with two cylinders and two regulating mechanisms, and regulating mechanism acts on one end of cutter head unit, for adjusting the stroke of cylinder.Cutter head unit includes splined shaft and linear bearing fixed block.Linear bearing is arranged on splined shaft, the head end of splined shaft is connected to cylinder, tail end is arranged in bushing fixed plate.Linear bearing fixed block is sheathed on the tail end of splined shaft, and linear bearing is embedded between splined shaft and linear bearing fixed block.The tail end of two splined shafts is connected separately with perforating knife and inclined cutter.Multifunctional tool bit processing efficiency with higher, and can be used to process hole or the V-shaped groove of plurality of specifications.

Description

Multifunctional tool bit and sofa cover for seat cutting machine comprising it

Technical field

The utility model relates to cutting machine field, in particular to a kind of Multifunctional tool bit and the sofa cover for seat comprising it are cut Machine.

Background technique

Currently, the cutter head used in sofa cover for seat cutting machine or being only able to achieve punching or only can be realized V-arrangement Slot cutting, the function of cutter head is relatively simple, is easily reduced the processing efficiency of sofa cover for seat cutting machine.

Utility model content

The technical problems to be solved in the utility model be in order to overcome in the prior art sofa cover for seat cutting implement have cutter head It has a single function, the lower defect of processing efficiency, a kind of Multifunctional tool bit and the sofa cover for seat cutting machine comprising it is provided.

The utility model is to solve above-mentioned technical problem by following technical proposals:

A kind of Multifunctional tool bit, it is characterized in that comprising sliding rail mounting plate, cylinder mounting plate, bushing fixed plate, first Driving motor, the second driving motor and two cutter head units being oppositely arranged, the cylinder mounting plate and the bushing fixed plate point It is not removably connected to the top and bottom end of the sliding rail mounting plate, the cylinder mounting plate is equipped with two cylinders and two and adjusts machine Structure, two cylinders, two regulating mechanisms and two cutter head units correspond, and each cutter head unit is successively arranged in institute Cylinder mounting plate and the bushing fixed plate are stated, the regulating mechanism acts on one far from the cutter head unit in the cylinder End, the regulating mechanism are used to adjust the stroke of the cylinder；

Each cutter head unit includes:

Splined shaft is arranged with linear bearing on the splined shaft, and the splined shaft has head end and tail end in the axial direction, The head end of the splined shaft is connected to the cylinder, and the tail end of the splined shaft is arranged in the bushing fixed plate；

Linear bearing fixed block, the linear bearing fixed block are sheathed on the tail end of the splined shaft, the linear bearing It is embedded between the outside wall surface of the splined shaft and the inner wall of the linear bearing fixed block；

Wherein, wherein the tail end of the splined shaft of a cutter head unit is connected with perforating knife, another cutter head unit The tail end of splined shaft is connected with inclined cutter；The cylinder is for making the splined shaft along the axis direction elevating movement；It is described First driving motor acts on the linear bearing fixed block, and for revolving the splined shaft for being connected with the perforating knife around axis Turn；Second driving motor acts on the linear bearing fixed block, and the splined shaft for making to be connected with the inclined cutter It rotates about the axis.

In the present solution, in the presence of cylinder, splined shaft elevating movement in the axial direction；In the first driving motor and Under the action of two driving motors, the splined shaft of two cutter head units rotates about the axis respectively.That is, splined shaft can be gone up and down Movement also can be carried out rotation, be conducive to the efficiency for improving punching or V-shaped groove processing.The elevating movement of splined shaft is driven by the cylinder, Stroke is short, high-efficient, is also beneficial to improve perforating efficiency.And regulating mechanism can adjust the stroke of cylinder, be conducive to improve The scope of application of Multifunctional tool bit, so that Multifunctional tool bit can process hole or the V-shaped groove of plurality of specifications.

Preferably, passing through positioning key connection between the linear bearing fixed block and the linear bearing；

Linear bearing is arranged at position corresponding with the positioning key in the outside wall surface of the linear bearing fixed block Compacting ring, the linear bearing compacting ring are set to the positioning key for pressing.

In the present solution, the first driving motor or the second driving motor drive the rotation of linear bearing fixed block, due to positioning The effect of key, the rotation of linear bearing fixed block will drive linear bearing rotation, and then can splined shaft be rotated.Linear axis pressure-bearing Collar can play limit and fixed function to positioning key, prevent positioning key from loosening or falling off, so as to improve linear bearing The reliability connected between fixed block and linear bearing, and then be conducive to improve the reliability of Multifunctional tool bit.

Preferably, the bushing fixed plate includes

Two support plates being oppositely arranged all have two mounting holes being oppositely arranged, the splined shaft in two support plates It is arranged in the mounting hole of two support plates, and the both ends of the linear bearing fixed block are embedded at corresponding two peace It fills in hole；

Connecting plate, the connecting plate are connected between two support plates, and the connecting plate is far from two support plates One end fits in the sliding rail mounting plate；

The both ends of the linear bearing fixed block are arranged with bearing, and the bearing is embedded at the linear bearing and fixes Between the outside wall surface of block and the wall surface of the mounting hole.

In the present solution, the structure of bushing fixed plate is similar to "U" shaped structure, intensity is higher.

Preferably, the both ends of the linear bearing fixed block extend respectively to the outside wall surface of two support plates, and two institutes It states to press at position corresponding with the mounting hole in the outside wall surface of support plate and is equipped with bearing plate.

In the present solution, bearing plate can compress bearing, moved with limiting bearing along the axis direction of splined shaft, from And can be improved the reliability between linear bearing fixed block and bushing fixed plate, be conducive to improve the reliable of splined shaft rotation Property, and then be conducive to improve the reliability of Multifunctional tool bit work.

Preferably, being also arranged with driven pulley in the outside wall surface of the linear bearing fixed block；

First driving motor and described the are connected in a support plate of the head end of the splined shaft Two driving motors, and the shaft of first driving motor and second driving motor all extend to two support plates it Between, driving pulley is arranged in the shaft of first driving motor and second driving motor；

Wherein, second driving motor is servo motor.

In the present solution, driving pulley in the shaft of the first driving motor and the second driving motor respectively with corresponding institute Driven pulley transmission connection is stated, the second driving motor uses servo motor, can process in a part that inclined cutter completes V-shaped groove Afterwards, the rotation angle of inclined cutter is adjusted, by servo motor to complete the processing of the remaining part of V-shaped groove.

Preferably, the head end of the splined shaft is arranged with upper bearing sleeve and lower bearing sleeve, it is embedded in the upper bearing sleeve Up-thrust bearing is embedded with lower thrust-bearing in the lower bearing sleeve, and the upper bearing (metal) casing pressure is set to and is removably connected to institute State lower bearing sleeve；

One end in the execution bar of the cylinder close to the upper bearing sleeve is connected with cylinder extension device, and the cylinder extends Part pressure is set to the upper bearing sleeve；

The head end of the splined shaft has stage portion, and the lower thrust-bearing is sheathed on the head end of the splined shaft and is located at The lower section of the stage portion, and stage portion pressure is set between the up-thrust bearing and the lower thrust-bearing.

In the present solution, upper bearing sleeve and lower bearing sleeve are located at the top of linear bearing fixed block, in the presence of cylinder, Cylinder extension device drives splined shaft to go up and down fortune between cylinder mounting plate and bushing fixed plate by upper bearing sleeve and lower bearing sleeve It is dynamic.

Preferably, one end in the stage portion close to the up-thrust bearing is arranged with compressing member, in the compressing member One end far from the stage portion is embedded at the up-thrust bearing.

In the present solution, the compressing member can either make splined shaft more reliably be pressed on up-thrust bearing and lower thrust Between bearing, and it can compensate for as caused by the mismachining tolerance of upper bearing sleeve, lower bearing sleeve and splined shaft etc. to splined shaft pressure The influence of tight reliability.

Preferably, one end in the execution bar of the cylinder close to the upper bearing sleeve is connected to the gas by connector Cylinder extension device, the connector are sheathed on the execution bar of the cylinder, one end of the close upper bearing sleeve in the connector It is embedded at the upper bearing sleeve；

One end in the connector far from the upper bearing sleeve has annular groove, the annular groove and the execution bar Buffer gasket is embedded between outside wall surface, the buffer gasket is for being connected to the cylinder mounting plate.

In the present solution, buffer gasket can play buffer function, each element and cylinder mounting plate on splined shaft are prevented Between hard collision occurs, be conducive to protect Multifunctional tool bit.

Preferably, the cylinder mounting plate is equipped with mounting rack, the mounting rack includes support column and limit plate, the branch Dagger is set up between the limit plate and the cylinder mounting plate；

The regulating mechanism includes:

Adjusting screw rod, the adjusting screw rod are arranged in the limit plate, and close to the cylinder in the adjusting screw rod One end is connected to the execution bar of the cylinder；

Adjusting nut, the adjusting nut are threadedly connected to one end in the adjusting screw rod far from the cylinder, and institute It states adjusting screw rod and extends the adjusting nut；

Adjust pressing sleeve, adjustings pressing sleeve pressure is set to the adjusting nut, and described in the adjusting pressing sleeve is threadedly connected to Adjusting screw rod extends the part of the adjusting nut.

In the present solution, screwing in the depth of adjusting screw rod by adjusting adjusting nut under the action of limit plate, that is, passing through The length that adjusting screw rod extends adjusting nut is adjusted, the stroke of cylinder can be adjusted, so that Multifunctional tool bit can be used in adding The hole of work plurality of specifications or V-shaped groove.

The utility model also provides a kind of sofa cover for seat cutting machine, it is characterized in that comprising have upper described multi-functional Cutter head.

In the present solution, sofa cover for seat cutting machine utilize above structure form Multifunctional tool bit, be not only able to achieve punching, but also It is able to achieve the processing of V-shaped groove, so as to improve the processing efficiency of sofa cover for seat cutting machine.

On the basis of common knowledge of the art, above-mentioned each optimum condition, can any combination to get the utility model respectively compared with Good example.

The positive effect of the utility model is:

In the Multifunctional tool bit, sofa cover for seat cutting machine had not only been able to achieve punching, but also has been able to achieve the processing of V-shaped groove, thus It can be improved the processing efficiency of sofa cover for seat cutting machine.

Detailed description of the invention

Fig. 1 is the overall structure diagram of the Multifunctional tool bit of one preferred embodiment of the utility model.

Fig. 2 is the structural schematic diagram of part A in Fig. 1.

Fig. 3 is another overall structure diagram of the Multifunctional tool bit of one preferred embodiment of the utility model.

Fig. 4 is the schematic diagram of internal structure of the Multifunctional tool bit of one preferred embodiment of the utility model.

Fig. 5 is the enlarged structure schematic diagram of part B in Fig. 4.

Fig. 6 is the structural schematic diagram of linear bearing fixed block in the Multifunctional tool bit of one preferred embodiment of the utility model.

Description of symbols:

10 sliding rail mounting plates

20 cylinder mounting plates

201 support columns

202 limit plates

30 bushing fixed plates

301 connecting plates

302 support plates

40 first driving motors

50 cutter head units

501 splined shafts

5011 linear bearings

5012 stage portions

502 linear bearing fixed blocks

5021 keyways

5022 first mounting portions

5023 second mounting portions

503 perforating knifes

504 positioning keys

505 linear bearing compacting rings

506 bearings

507 bearing plates

508 driven pulleys

510 driving pulleys

511 upper bearing sleeves

512 lower bearing sleeves

513 up-thrust bearings

514 lower thrust-bearings

515 compressing members

516 inclined cutters

60 cylinders

601 cylinder extension devices

602 connectors

603 buffer gaskets

70 broach shells

80 regulating mechanisms

801 adjusting screw rods

802 adjusting nuts

803 adjust pressing sleeve

90 second driving motors

Specific embodiment

Illustrate below by the mode of embodiment and completely the utility model in conjunction with attached drawing to become apparent from, but not therefore Among the scope of embodiments that the utility model is limited in.

The present embodiment discloses the Multifunctional tool bit in a kind of sofa cover for seat cutting machine, which is modular form, It, can be by the knife when needing replacing the Multifunctional tool bit or needing to remove the Multifunctional tool bit from sofa cover for seat cutting machine Head integral replacing removes, and replacement or removal efficiency are higher.

- 6 are understood referring to Fig.1, and Multifunctional tool bit includes sliding rail mounting plate 10, cylinder mounting plate 20, bushing fixed plate 30, the first driving motor 40, the second driving motor 90 and two cutter head units 50 being oppositely arranged, cylinder mounting plate 20 and bushing are solid Fixed board 30 is removably connected to the top and bottom end of sliding rail mounting plate 10 respectively, and cylinder mounting plate 20 is equipped with two cylinders 60 and two Regulating mechanism 80, two cylinders 60, two regulating mechanisms 80 and two cutter head units 50 correspond, and each cutter head unit 50 is successively worn In cylinder mounting plate 20 and bushing fixed plate 30, regulating mechanism 80 acts on one end in cylinder 60 far from cutter head unit 50, adjusts Section mechanism 80 is used to adjust the stroke of cylinder 60.Each cutter head unit 50 includes splined shaft 501 and linear bearing fixed block 502. Linear bearing 5011 is arranged on splined shaft 501, splined shaft 501 has head end and tail end, the head of splined shaft 501 in the axial direction End is connected to cylinder 60, and the tail end of splined shaft 501 is arranged in bushing fixed plate 30.Linear bearing fixed block 502 is sheathed on spline The tail end of axis 501, linear bearing 5011 be embedded at splined shaft 501 outside wall surface and linear bearing fixed block 502 inner wall it Between.Wherein, wherein the tail end of the splined shaft 501 of a cutter head unit 50 is connected with perforating knife 503, the spline of another cutter head unit 50 The tail end of axis 501 is connected with inclined cutter 516；Cylinder 60 is for making the elevating movement in the axial direction of splined shaft 501；First driving electricity Machine 40 acts on linear bearing fixed block 502, and for rotating about the axis the splined shaft for being connected with perforating knife 503 501；Second Driving motor 90 acts on linear bearing fixed block 502, and for revolving the splined shaft 501 for being connected with inclined cutter 516 around axis Turn.

In the present embodiment, under the action of cylinder 60, the elevating movement in the axial direction of splined shaft 501；It is driven first Under the action of dynamic motor 40 and the second driving motor 90, the splined shaft 501 of two cutter head units 50 rotates about the axis respectively.Namely It says, splined shaft 501 can make elevating movement also and can be carried out rotation, be conducive to the efficiency for improving punching or V-shaped groove processing.Splined shaft 501 elevating movement is driven by cylinder 60, and stroke is short, high-efficient, is also beneficial to improve perforating efficiency.And 80 energy of regulating mechanism Enough adjust cylinder 60 stroke, be conducive to improve Multifunctional tool bit the scope of application so that Multifunctional tool bit can process it is a variety of The hole of specification or V-shaped groove.

Further, understood referring to Fig. 1-2 and Fig. 6, led between linear bearing fixed block 502 and linear bearing 5011 The connection of positioning key 504 is crossed, is arranged with directly at position corresponding with positioning key 504 in the outside wall surface of linear bearing fixed block 502 Spool pressure-bearing collar 505, linear bearing compacting ring 505 are set to positioning key 504 for pressing.In addition, linear bearing is solid referring to Fig. 6 Determine that there is keyway 5021 on block 502, positioning key 504 is embedded in the keyway 5021.

Wherein, the first driving motor 40 or the second driving motor 90 drive linear bearing fixed block 502 to rotate, due to positioning The effect of key 504, the rotation of linear bearing fixed block 502 will drive the rotation of linear bearing 5011, and then splined shaft 501 can be made to revolve Turn.Linear bearing compacting ring 505 can play limit and fixed function to positioning key 504, prevent positioning key 504 from loosening or taking off It falls, so as to improve the reliability connected between linear bearing fixed block 502 and linear bearing 5011, and then is conducive to improve The reliability of Multifunctional tool bit.

Further, understood referring to Fig. 1-3, bushing fixed plate 30 have connecting plate 301 and be oppositely arranged two Support plate 302.Two mounting holes (not indicating in figure) being oppositely arranged are all had in two support plates 302, splined shaft 501 is arranged in The mounting hole of two support plates 302, and the both ends of linear bearing fixed block 502 are embedded in corresponding two mounting hole.Connecting plate 301 It is connected between two support plates 302, connecting plate 301 fits in sliding rail mounting plate 10 far from one end of two support plates 302.Linear axis The both ends for holding fixed block 502 are arranged with bearing 506, and bearing 506 is embedded at the outside wall surface and peace of linear bearing fixed block 502 Between the wall surface for filling hole.As shown in fig. 6, the both ends of linear bearing fixed block 502 are each formed with the first mounting portion 5022, two bearings 506 one-to-one correspondence are sheathed on two first mounting portions 5022.The structure of bushing fixed plate 30 be similar to "U" shaped structure, intensity compared with It is high.

Further, the both ends of linear bearing fixed block 502 extend respectively to the outside wall surface of two support plates 302, and two Pressure is equipped with 506 pressing plate of bearing at position corresponding with mounting hole in the outside wall surface of support plate 302.506 pressing plate of bearing can Bearing 506 is compressed, is moved with limiting bearing 506 along the axis direction of splined shaft 501, is fixed so as to improve linear bearing Reliability between block 502 and bushing fixed plate 30 is conducive to improve the reliability that splined shaft 501 rotates, and then is conducive to mention The reliability of high Multifunctional tool bit work.

Further, there is the second mounting portion 5023, the second mounting portion in the outside wall surface of linear bearing fixed block 502 Driven pulley 508 is arranged on 5023.The first driving electricity is connected in a support plate 302 of the head end of splined shaft 501 Machine 40 and the second driving motor 90, and the shaft of the first driving motor 40 and the second driving motor 90 all extends to two support plates Between 302, driving pulley 510 is arranged in the shaft of the first driving motor 40 and the second driving motor 90.Second driving electricity Machine 90 is servo motor.Wherein, the driving pulley 510 in the shaft of the first driving motor 40 and the second driving motor 90 respectively with Corresponding driven pulley 508 is sequentially connected, and the second driving motor 90 uses servo motor, can complete V-shaped groove in inclined cutter 516 A part processing after, by servo motor adjust inclined cutter 516 rotation angle, with complete V-shaped groove remaining part plus Work.

Further, the head end of splined shaft 501 is arranged with upper bearing sleeve 511 and lower bearing sleeve 512, upper bearing sleeve 511 It is inside embedded with up-thrust bearing 513, lower thrust-bearing 514 is embedded in lower bearing sleeve 512, the pressure of upper bearing sleeve 511 is set to and can Dismantling connection is in lower bearing sleeve 512.One end in the execution bar of cylinder 60 close to upper bearing sleeve 511 is connected with cylinder extension device 601, the pressure of cylinder extension device 601 is set to upper bearing sleeve 511.The head end of splined shaft 501 has stage portion 5012, lower thrust-bearing 514 are sheathed on the head end of splined shaft 501 and are located at the lower section of stage portion 5012, and the pressure of stage portion 5012 is set to up-thrust bearing Between 513 and lower thrust-bearing 514.Wherein, upper bearing sleeve 511 and lower bearing sleeve 512 are located at the upper of linear bearing fixed block 502 Side, under the action of cylinder 60, cylinder extension device 601 drives splined shaft 501 to exist by upper bearing sleeve 511 and lower bearing sleeve 512 Elevating movement between cylinder mounting plate 20 and bushing fixed plate 30.

Further, one end in stage portion 5012 close to up-thrust bearing 513 is arranged with compressing member 515, compressing member One end in 515 far from stage portion 5012 is embedded at up-thrust bearing 513.Wherein, compressing member 515 can either make splined shaft 501 More reliably be pressed between up-thrust bearing 513 and lower thrust-bearing 514, but can compensate for due to upper bearing sleeve 511, under The influence of reliability is compressed caused by the mismachining tolerance of bearing holder (housing, cover) 512 and splined shaft 501 etc. to splined shaft 501.

More into one, understood referring to Fig. 1, Fig. 4-5, the one end of cylinder 60 executed in bar close to upper bearing sleeve 511 It is connected to cylinder extension device 601 by connector 602, connector 602 is sheathed on the execution bar of cylinder 60, leans in connector 602 One end of nearly upper bearing sleeve 511 is embedded at upper bearing sleeve 511.One end in connector 602 far from upper bearing sleeve 511 has annular Slot is embedded with buffer gasket 603 between annular groove and the outside wall surface for executing bar, buffer gasket 603 is for being connected to cylinder installation Plate 20.

Wherein, buffer gasket 603 can play buffer function, prevent each element and cylinder mounting plate on splined shaft 501 Hard collision occurs between 20, is conducive to protect Multifunctional tool bit.

Further, understood referring to Fig. 1, Fig. 3-5, cylinder mounting plate 20 is equipped with mounting rack, and mounting rack includes Support column 201 and limit plate 202, support column 201 are set up between limit plate 202 and cylinder mounting plate 20.Regulating mechanism 80 wraps It includes adjusting screw rod 801, adjusting nut 802 and adjusts pressing sleeve 803.Adjusting screw rod 801 is arranged in limit plate 202, and adjusting screw rod One end in 801 close to cylinder 60 is connected to the execution bar of cylinder 60.Adjusting nut 802 is threadedly connected in adjusting screw rod 801 One end far from cylinder 60, and adjusting screw rod 801 extends adjusting nut 802.It adjusts the pressure of pressing sleeve 803 and is set to adjusting nut 802, And it adjusts pressing sleeve 803 and is threadedly connected to the part that adjusting screw rod 801 extends adjusting nut 802.Wherein, in limit plate 202 Under effect, the depth of adjusting screw rod 801 is screwed in by adjusting adjusting nut 802, i.e., extends tune by adjusting adjusting screw rod 801 Save nut 802 length, the stroke of cylinder 60 can be adjusted so that Multifunctional tool bit can be used in process plurality of specifications hole or V-shaped groove.

Further, referring to Fig.1, Fig. 3 and Fig. 4 understood that Multifunctional tool bit further includes broach shell 70, the one of broach shell 70 End cap is set to the tail end of splined shaft 501, and the other end of broach shell 70 is connected with perforating knife 503 or inclined cutter 516.On the one hand, broach shell 70 can protect perforating knife 503 and inclined cutter 516；On the other hand, broach shell 70 is easy to implement perforating knife 503, inclined cutter 516 and flower The installation and removal of key axis 501 are easy to implement the maintenance and replacement of perforating knife 503 and inclined cutter 516.

In the Multifunctional tool bit, under the action of the first driving motor 40 and the second driving motor 90, two cutter head units 50 splined shaft 501 rotates about the axis respectively, and splined shaft 501 can make elevating movement also and can be carried out rotation, is conducive to improve and beat The efficiency of hole or V-shaped groove processing.The elevating movement of splined shaft 501 is driven by cylinder 60, and stroke is short, high-efficient, is also beneficial to mention High perforating efficiency.And regulating mechanism 80 can adjust the stroke of cylinder 60, be conducive to the scope of application for improving Multifunctional tool bit, So that Multifunctional tool bit can process hole or the V-shaped groove of plurality of specifications.

Although the foregoing describe specific embodiment of the present utility model, it will be appreciated by those of skill in the art that This is merely illustrative of, and the protection scope of the utility model is defined by the appended claims.Those skilled in the art Under the premise of without departing substantially from the principles of the present invention and essence, many changes and modifications may be made, But these change and modification each fall within the protection scope of the utility model.

Claims (10)

1. a kind of Multifunctional tool bit, which is characterized in that it includes sliding rail mounting plate, cylinder mounting plate, bushing fixed plate, the first drive Dynamic motor, the second driving motor and two cutter head units being oppositely arranged, the cylinder mounting plate and bushing fixed plate difference It is removably connected to the top and bottom end of the sliding rail mounting plate, the cylinder mounting plate is equipped with two cylinders and two and adjusts machine Structure, two cylinders, two regulating mechanisms and two cutter head units correspond, and each cutter head unit is successively arranged in institute Cylinder mounting plate and the bushing fixed plate are stated, the regulating mechanism acts on one far from the cutter head unit in the cylinder End, the regulating mechanism are used to adjust the stroke of the cylinder；

Each cutter head unit includes:

Splined shaft is arranged with linear bearing on the splined shaft, and the splined shaft has head end and tail end in the axial direction, described The head end of splined shaft is connected to the cylinder, and the tail end of the splined shaft is arranged in the bushing fixed plate；

Linear bearing fixed block, the linear bearing fixed block are sheathed on the tail end of the splined shaft, and the linear bearing is embedded Between the outside wall surface of the splined shaft and the inner wall of the linear bearing fixed block；

Wherein, wherein the tail end of the splined shaft of a cutter head unit is connected with perforating knife, the spline of another cutter head unit The tail end of axis is connected with inclined cutter；The cylinder is for making the splined shaft along the axis direction elevating movement；Described first Driving motor acts on the linear bearing fixed block, and for rotating about the axis the splined shaft for being connected with the perforating knife； Second driving motor acts on the linear bearing fixed block, and for making the splined shaft for being connected with the inclined cutter around axis Line rotation.

2. Multifunctional tool bit as described in claim 1, which is characterized in that the linear bearing fixed block and the linear bearing Between by positioning key connection；

Linear bearing compression is arranged in the outside wall surface of the linear bearing fixed block at position corresponding with the positioning key Circle, the linear bearing compacting ring are set to the positioning key for pressing.

3. Multifunctional tool bit as described in claim 1, which is characterized in that the bushing fixed plate includes

Two support plates being oppositely arranged all have two mounting holes being oppositely arranged in two support plates, and the splined shaft is worn Corresponding two mounting hole is embedded in the both ends of the mounting hole of two support plates, and the linear bearing fixed block It is interior；

Connecting plate, the connecting plate are connected between two support plates, the one end of the connecting plate far from two support plates Fit in the sliding rail mounting plate；

Wherein, the both ends of the linear bearing fixed block are arranged with bearing, and the bearing is embedded at the linear bearing and consolidates Determine between the outside wall surface of block and the wall surface of the mounting hole.

4. Multifunctional tool bit as claimed in claim 3, which is characterized in that the both ends of the linear bearing fixed block each extend over To the outside wall surface of two support plates, and pressed at position corresponding with the mounting hole in the outside wall surface of two support plates Equipped with bearing plate.

5. Multifunctional tool bit as claimed in claim 3, which is characterized in that also covered in the outside wall surface of the linear bearing fixed block Equipped with driven pulley；

First driving motor and described second is connected in a support plate of the head end of the splined shaft to drive Dynamic motor, and the shaft of first driving motor and second driving motor all extends between two support plates, institute It states and is arranged with driving pulley in the shaft of the first driving motor and second driving motor；

Wherein, second driving motor is servo motor.

6. Multifunctional tool bit as described in claim 1, which is characterized in that the head end of the splined shaft be arranged with upper bearing sleeve and Lower bearing sleeve is embedded with up-thrust bearing in the upper bearing sleeve, is embedded with lower thrust-bearing in the lower bearing sleeve, it is described on Bearing casing pressure is set to and is removably connected to the lower bearing sleeve；

One end in the execution bar of the cylinder close to the upper bearing sleeve is connected with cylinder extension device, the cylinder extension device pressure Set on the upper bearing sleeve；

The head end of the splined shaft has stage portion, and the lower thrust-bearing is sheathed on the head end of the splined shaft and is located at described The lower section of stage portion, and stage portion pressure is set between the up-thrust bearing and the lower thrust-bearing.

7. Multifunctional tool bit as claimed in claim 6, which is characterized in that close to the up-thrust bearing in the stage portion One end is arranged with compressing member, and one end far from the stage portion is embedded at the up-thrust bearing in the compressing member.

8. Multifunctional tool bit as claimed in claim 6, which is characterized in that close to the upper bearing (metal) in the execution bar of the cylinder One end of set is connected to the cylinder extension device by connector, and the connector is sheathed on the execution bar of the cylinder, described One end in connector close to the upper bearing sleeve is embedded at the upper bearing sleeve；

One end in the connector far from the upper bearing sleeve has annular groove, the annular groove and the outer wall for executing bar Buffer gasket is embedded between face, the buffer gasket is for being connected to the cylinder mounting plate.

9. the Multifunctional tool bit as described in any one of claim 1-8, which is characterized in that the cylinder mounting plate is equipped with Mounting rack, the mounting rack include support column and limit plate, and the support column is set up in the limit plate and cylinder installation Between plate；

The regulating mechanism includes:

Adjusting screw rod, the adjusting screw rod are arranged in the limit plate, and close to one end of the cylinder in the adjusting screw rod It is connected to the execution bar of the cylinder；

Adjusting nut, the adjusting nut are threadedly connected to one end in the adjusting screw rod far from the cylinder, and the tune Section screw rod extends the adjusting nut；

Pressing sleeve is adjusted, the adjusting pressing sleeve pressure is set to the adjusting nut, and the adjusting pressing sleeve is threadedly connected to the adjusting Screw rod extends the part of the adjusting nut.

10. a kind of sofa cover for seat cutting machine, which is characterized in that it includes more just like described in any one of claim 1-9 Function cutter head.