阅读说明：本技术 一种剪刃加工用具有定位结构的固定装置 (Fixing device with positioning structure for processing shear blade ) 是由 陈家保 于 2020-05-09 设计创作，主要内容包括：本发明公开了一种剪刃加工用具有定位结构的固定装置,包括固定操作台,所述固定操作台内部中间位置处设置有推送机构,所述固定操作台内部右侧设置有锁定机构,所述固定操作台左侧设置有传动机构,所述固定操作台顶端设置有定位机构,所述固定操作台顶端设置有固定机构。本发明避免了在对剪刃进行固定时,浪费了操作人员的时间,为操作人员带来了不便,降低了工作效率的问题,在对扭杆进行按动时,通过该传动机构的作用下可对转动板和夹板向两侧进行展开,且在铰接杆的作用下可将拉杆进行同步拉出,节省了操作人员的时间,且操作简单,提高了易用性,避免了在对剪刃进行固定操作时,操作繁琐的问题。(The invention discloses a fixing device with a positioning structure for cutting edge machining, which comprises a fixing operation table, wherein a pushing mechanism is arranged in the middle position inside the fixing operation table, a locking mechanism is arranged on the right side inside the fixing operation table, a transmission mechanism is arranged on the left side of the fixing operation table, a positioning mechanism is arranged at the top end of the fixing operation table, and a fixing mechanism is arranged at the top end of the fixing operation table. The invention avoids wasting the time of operators when fixing the shearing blade, bringing inconvenience to the operators and reducing the working efficiency, can unfold the rotating plate and the clamping plate to two sides under the action of the transmission mechanism when pressing the torsion bar, and can pull out the pull rod synchronously under the action of the hinged rod, thereby saving the time of the operators, having simple operation and improved usability, and avoiding the problem of complicated operation when fixing the shearing blade.)

1. The utility model provides a cutting edge processing is with fixing device who has location structure, includes fixed operation panel (1), its characterized in that: the automatic feeding device is characterized in that a pushing mechanism is arranged in the middle of the inside of the fixed operation table (1), a locking mechanism is arranged on the right side of the inside of the fixed operation table (1), a transmission mechanism is arranged on the left side of the fixed operation table (1), a positioning mechanism is arranged on the top end of the fixed operation table (1), and a fixing mechanism is arranged on the top end of the fixed operation table (1).

2. The fixing device with the positioning structure for processing the cutting edge as claimed in claim 1, wherein: push mechanism includes spacing cassette (211), push pedal (212), cavity (213), first push rod (214) and first spring (215), fixed operation panel (1) inside is fixed with spacing cassette (211), and the inside cover of spacing cassette (211) is equipped with push pedal (212), the inside left side top of fixed operation panel (1) is fixed with cavity (213), and inside cover of cavity (213) is equipped with first push rod (214), first push rod (214) top outside is twined and is had first spring (215), push pedal (212) and first push rod (214) are laminated each other, and push pedal (212) and first push rod (214) laminating department all are the design of slope form.

3. The fixing device with the positioning structure for processing the cutting edge as claimed in claim 2, wherein: the locking mechanism comprises a second push rod (311), a torsion bar (312), a sliding groove (313), a clamping groove (314) and a clamping block (315), the second push rod (311) is fixed on the right side of the push plate (212), the torsion bar (312) is movably connected to the right side of the second push rod (311) through a bearing, the sliding groove (313) is formed in the upper end and the lower end of the torsion bar (312), nine groups of clamping grooves (314) are formed in the position, close to the outer side of the torsion bar (312), of the sliding groove (313), through holes matched with the torsion bar (312) are formed in the right side of the fixed operating platform (1), the clamping block (315) is fixed to the upper end and the lower end of each through hole, and the sliding grooves (313) and the.

4. The fixing device with the positioning structure for processing the cutting edge as claimed in claim 2, wherein: the transmission mechanism comprises a first toothed bar (411), a first gear (412), a rotating rod (413), a second gear (414), a rotating bin (415), a third gear (416), a second toothed bar (417), a sliding rail (418), a sliding block (419) and a hinge rod (420), wherein the left side of the pushing plate (212) is fixed with the first toothed bar (411), the back of the first toothed bar (411) is meshed with the first gear (412), the first gear (412) is sleeved outside the rotating rod (413), the bottom end of the rotating rod (413) is movably connected with the fixed operating platform (1) through a bearing, the top end of the rotating rod (413) penetrates through the fixed operating platform (1) and is fixedly provided with the second gear (414), the top end of the left side of the fixed operating platform (1) is connected with the rotating bin (415) through a bolt thread, the right side of the second gear (414) is provided with the third gear (416), and the top end of the third gear (416) is movably connected with the rotating bin (415) through a bearing, third gear (416) right side is provided with second ratch (417), and slide rail (418), two sets of have all been seted up at both ends about second ratch (417) slide rail (418) inside sliding connection all has slider (419), and slider (419) all fixes on rotating storehouse (415), second ratch (417) front end right side has articulated rod (420) through articulated shaft swing joint, and articulated rod (420) intermediate position department passes through articulated shaft swing joint at fixed operation panel (1) upper surface.

5. The fixing device with the positioning structure for processing the cutting edge as claimed in claim 2, wherein: the positioning mechanism comprises a placing table (511), a baffle (512), a first loop bar (513), a second loop bar (514), a second spring (515), a push block (516), a pull rod (517) and positioning grooves (518), wherein the top end of a first push rod (214) is fixed with the placing table (511), the two sides of the top end of the placing table (511) are both fixed with the baffle (512), the rear end of the interior of the placing table (511) is fixed with the first loop bar (513), the interior of the first loop bar (513) is sleeved with the second loop bar (514), the exterior of the second loop bar (514) is sleeved with the second spring (515), the front end of the second loop bar (514) is fixed with the push block (516), the front end of the push block (516) is fixed with the pull rod (517), the front end of the pull rod (517) penetrates through the placing table (511) and extends to the outer surface of the placing table (511), and the front and back two groups of positioning grooves (518) are arranged on, the front end the constant head tank (518) bottom is fixed on ejector pad (516) top, the rear end constant head tank (518) bottom is fixed on placing platform (511) top, the front end pull rod (517) has articulated rod (420) through articulated shaft swing joint.

6. The fixing device with the positioning structure for processing the cutting edge as claimed in claim 1, wherein: fixed establishment includes rotor plate (611), rotating base (612), splint (613) and third spring (614), fixed operation panel (1) top intermediate position department is fixed with two sets of rotating base (612), and rotating base (612) top all passes through articulated shaft and rotor plate (611) swing joint, and is two sets of rotor plate (611) are close to fixed operation panel (1) inboard and all pass through articulated shaft swing joint in placing platform (511) both sides, and are two sets of rotor plate (611) are close to fixed operation panel (1) inboard and all pass through articulated shaft swing joint splint (613), and splint (613) bottom is close to rotor plate (611) outside and all is fixed with third spring (614), and is two sets of third spring (614) bottom all fixes on rotor plate (611).

7. The fixing device with the positioning structure for processing the cutting edge as claimed in claim 2, wherein: sliding grooves are formed in two sides of the inner portion of the cavity (213), sliding plates are connected to the inner portions of the sliding grooves in a sliding mode, and the two sliding plates are fixed to two sides of the first push rod (214).

8. The fixing device with the positioning structure for processing the cutting edge as claimed in claim 4, wherein: the left side of the fixed operating platform (1) is provided with a containing groove matched with the first rack bar (411), and the diameter of the second gear (414) is larger than that of the third gear (416).

9. The fixing device with the positioning structure for processing the cutting edge as claimed in claim 5, wherein: two sets of constant head tank (518) inside all is the arc design, and constant head tank (518) inside all laminates the rubber cushion.

10. The fixing device with the positioning structure for processing the cutting edge as claimed in claim 6, wherein: the two sets of rotating plates (611) are designed to have an L-shaped structure, and the inner sides of the two sets of clamping plates (613) are designed to be saw-toothed.

Technical Field

The invention relates to the technical field of fixing devices, in particular to a fixing device with a positioning structure for processing a shear blade.

Background

The fixing device is mainly used for polishing and processing the post-production shear blade, and is convenient to fix the shear blade during processing, the existing fixing device with a positioning structure for processing the shear blade has various functions so as to meet various requirements of the shear blade processing and realize diversification, such as a positioning, clamping and fixing device for processing automobile parts disclosed by the publication No. CN109159050A, the invention can effectively improve the clamping and positioning efficiency and precision of workpieces, when in use, a workpiece is only required to be placed on a fixed sucker component at the upper end of a sliding locking rod, then the position is adjusted by a grabbing adjusting component, then the positioning pin is used for preliminary positioning, then the pressure adjusting component is used for carrying out proper downward pressing adjustment on the workpiece, after the pressure adjusting component is restored to the original position, the workpiece can automatically move the sliding locking rod downward by self weight, after the workpiece is stabilized, the upper locking assembly and the lower locking assembly are reasonable in structure, the sliding locking rod can be prevented from moving axially when the upper locking assembly and the lower locking assembly are locked, and the positioning precision is improved; for example, the fixed positioning device for machining the double oil holes of the pipe fitting disclosed in the publication No. CN107283187A has the characteristics of simple structure, convenience in use and operation, wide application range, capability of effectively ensuring the position degree of the oil holes, improvement on machining production efficiency and the like; for example, the fixing device for positioning a sheet metal punching hole disclosed in the publication No. CN107321841B is used to fasten a workpiece, prevent the workpiece from moving, protect the machining precision and the machining quality during machining, reduce vibration, protect a machine, buffer the impact force of a punch hammer during punching, protect the device, push out waste after punching, prevent the waste from being blocked, and influence the machining quality.

When current cutting edge processing is with fixing device who has location structure is generally carrying out the location operation, at first need carry out preliminary centre gripping to the cutting edge fixedly, then carry out location regulation operation to the cutting edge again, lock the cutting edge, this operation is comparatively loaded down with trivial details, has wasted operating personnel's time, for operating personnel has brought inconvenience, has reduced work efficiency, consequently needs a neotype cutting edge processing with fixing device who has location structure to solve above-mentioned problem urgently.

Disclosure of Invention

The invention aims to provide a fixing device with a positioning structure for cutting edge machining, and aims to solve the problems that inconvenience is brought to operators due to the fact that operation is complicated and work efficiency is reduced in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a cutting edge processing is with fixing device who has location structure, includes the fixed operation platform, the inside intermediate position department of fixed operation platform is provided with push mechanism, the inside right side of fixed operation platform is provided with locking mechanical system, the fixed operation platform left side is provided with drive mechanism, the fixed operation platform top is provided with positioning mechanism, the fixed operation platform top is provided with fixed establishment.

Preferably, push mechanism includes spacing cassette, push pedal, cavity, first push rod and first spring, fixed operation panel is inside to be fixed with spacing cassette, and the inside cover of spacing cassette is equipped with the push pedal, the inside left side top of fixed operation panel is fixed with the cavity, and the inside cover of cavity is equipped with first push rod, the winding of first push rod top outside has first spring, push pedal and first push rod are laminated each other, and push pedal and first push rod laminating department all are the design of slope form.

Preferably, the locking mechanism comprises a second push rod, a torsion bar, sliding grooves, clamping grooves and clamping blocks, the second push rod is fixed on the right side of the push plate, the torsion bar is movably connected to the right side of the second push rod through a bearing, the sliding grooves are formed in the upper end and the lower end of the torsion bar, nine groups of clamping grooves are formed in the positions, close to the outer side of the torsion bar, of the sliding grooves, through holes matched with the torsion bar are formed in the right side of the fixed operating platform, the clamping blocks are fixed on the upper end and the lower end of each through hole, and the sliding grooves.

Preferably, the transmission mechanism comprises a first toothed bar, a first gear, a rotating rod, a second gear, a rotating bin, a third gear, a second toothed bar, a sliding rail, a sliding block and a hinge rod, the left side of the push plate is fixed with the first toothed bar, the back of the first toothed bar is meshed with the first gear, the first gear is sleeved outside the rotating rod, the bottom end of the rotating rod is movably connected with the fixed operation table through a bearing, the top end of the rotating rod penetrates through the fixed operation table and is fixedly provided with the second gear, the top end of the left side of the fixed operation table is connected with the rotating bin through a bolt thread, the right side of the second gear is provided with the third gear, the top end of the third gear is movably connected with the rotating bin through a bearing, the right side of the third gear is provided with the second toothed bar, the upper end and the lower end of the second toothed bar are both provided with the sliding rail, and the insides of, the right side of the front end of the second toothed bar is movably connected with a hinged rod through a hinged shaft, and the middle position of the hinged rod is movably connected to the upper surface of the fixed operating platform through the hinged shaft.

Preferably, positioning mechanism is including placing platform, baffle, first loop bar, second spring, ejector pad, pull rod and constant head tank, first push rod top is fixed with places the platform, and places a top both sides and all be fixed with the baffle, place the inside rear end of platform and be fixed with first loop bar, and the inside cover of first loop bar is equipped with the second loop bar, the outside cover of second loop bar is equipped with the second spring, second loop bar front end is fixed with the ejector pad, and the ejector pad front end is fixed with the pull rod, the pull rod front end runs through and places the platform and extend to placing a surface, it all is provided with two sets of constant head tanks to place a top front end both sides around the top end constant head tank bottom mounting is on the ejector pad top, the rear end constant head tank bottom mounting is on placing a top end, the front end the pull rod has the hinge rod through articulated shaft swing joint.

Preferably, fixed establishment includes rotor plate, rotating base, splint and third spring, fixed operation platform top intermediate position department is fixed with two sets of rotating bases, and rotates the base top and all pass through articulated shaft and rotor plate swing joint, and is two sets of the rotor plate is close to fixed operation platform inboard and all places a both sides through articulated shaft swing joint, and is two sets of the rotor plate is close to fixed operation platform inboard and all has splint through articulated shaft swing joint, and the splint bottom is close to the rotor plate outside and all is fixed with the third spring, and is two sets of the third spring bottom all is fixed on the rotor plate.

Preferably, sliding grooves are formed in two sides of the inner portion of the cavity, sliding plates are connected to the inner portions of the sliding grooves in a sliding mode, and the two groups of sliding plates are fixed to two sides of the first push rod.

Preferably, the left side of the fixed operating platform is provided with a containing groove matched with the first rack bar, and the diameter of the second gear is larger than that of the third gear.

Preferably, two sets of the inside arc design that all is of constant head tank, and the constant head tank is inside all to have the laminating of rubber cushion.

Preferably, the two groups of rotating plates are designed to be L-shaped structures, and the inner sides of the two groups of clamping plates are designed to be saw-toothed.

Compared with the prior art, the invention has the beneficial effects that:

the fixing device for processing the shear blade is provided with a first toothed bar, a first gear, a rotating rod, a second gear, a rotating bin, a third gear, a second toothed bar, a sliding rail, a sliding block and a hinged rod, wherein by the design, when the torsion bar is pressed, the rotating plate and the clamping plate can be unfolded towards two sides under the action of the transmission mechanism, the pull rod can be synchronously pulled out under the action of the hinged rod, a placing table, a baffle plate, a first loop bar, a second spring, a push block, a pull rod and a positioning groove are arranged at the same time, by the design, the shear blade is placed in, the shear blade is positioned under the action of the positioning groove, the operation is more stable when the clamping is carried out under the action of the first loop bar and the second loop bar, the problem that the shear blade is dislocated and deviated due to the design of a rubber cushion and the baffle plate is prevented, and the push plate, the first push rod, the second push rod, the slide rod, the first spring, the torsion bar, the clamping groove, the clamping block, the first toothed bar, the first gear, the rotating rod, the second gear, the third gear, the second toothed bar, the sliding rail, the sliding block, the pull rod and the rotating plate, the push plate is driven to move when the torsion bar is pressed, the first push rod is driven to move upwards, so that the rotating plate is driven to unfold towards two sides, the first toothed bar moves leftwards while the push plate moves, the first gear is driven to rotate, the second gear, the third gear and the second toothed bar synchronously rotate under the action of the driving rotating rod, the second toothed bar moves backwards under the matching action of the sliding rail and the sliding block, the pull rod is driven to pull outwards under the action of the hinge shaft, then the shear blade is put in, then the torsion bar is loosened to move rightwards under the action of the push plate under the action of the first spring, when the shear blade is clamped and fixed by the rotating plate, carry out limiting displacement to the push pedal under the cooperation of draw-in groove and fixture block through rotating the torsion bar, to sum up, cooperate drive mechanism and positioning mechanism through above-mentioned structure together for the device is whole to be linked closely, and effectually prevented when processing is polished, the cutting edge sends vibrations and makes the cutting edge centre gripping unstable, the condition of aversion appears, when having avoided fixing the cutting edge, operating personnel's time has been wasted, for operating personnel has brought the inconvenience, work efficiency's problem has been reduced, time saving and labor saving, and easy operation, the ease for use and the stability of device have been improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic front sectional view of the present invention;

FIG. 2 is a schematic view of a left side partial front sectional structure of the present invention;

FIG. 3 is a schematic diagram of a left side partial top view of the present invention;

FIG. 4 is a schematic diagram of a left side sectional view of the placement table of the present invention;

FIG. 5 is a schematic top view of the placement table of the present invention;

FIG. 6 is a schematic side view of the torsion bar, the sliding groove and the locking groove of the present invention;

FIG. 7 is an enlarged view of the structure at A in FIG. 1 according to the present invention;

FIG. 8 is an enlarged view of the structure at B in FIG. 1 according to the present invention;

fig. 9 is a schematic sectional top view of the second gear, the third gear and the second rack of the present invention.

In the figure: 1. fixing an operation table; 211. a limiting clamping seat; 212. pushing the plate; 213. a chamber; 214. a first push rod; 215. a first spring; 311. a second push rod; 312. a torsion bar; 313. a chute; 314. a card slot; 315. a clamping block; 411. a first rack bar; 412. a first gear; 413. rotating the rod; 414. a second gear; 415. rotating the bin; 416. a third gear; 417. a second rack bar; 418. a slide rail; 419. a slider; 420. a hinged lever; 511. a placing table; 512. a baffle plate; 513. a first loop bar; 514. a second loop bar; 515. a second spring; 516. a push block; 517. a pull rod; 518. positioning a groove; 611. a rotating plate; 612. rotating the base; 613. a splint; 614. and a third spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-9, an embodiment of the present invention is shown:

the utility model provides a cutting edge processing is with fixing device who has location structure, includes fixed operation panel 1, and fixed operation panel 1 inside intermediate position department is provided with push mechanism, and fixed operation panel 1 inside right side is provided with locking mechanical system, and fixed operation panel 1 left side is provided with drive mechanism, and fixed operation panel 1 top is provided with positioning mechanism, and fixed operation panel 1 top is provided with fixed establishment.

As can be seen from fig. 1 and fig. 2, the pushing mechanism includes a limiting clamping seat 211, a push plate 212, a cavity 213, a first push rod 214 and a first spring 215, the limiting clamping seat 211 is fixed inside the fixed operating platform 1, the push plate 212 is sleeved inside the limiting clamping seat 211, the cavity 213 is fixed at the top end of the left side inside the fixed operating platform 1, the first push rod 214 is sleeved inside the cavity 213, the first spring 215 is wound outside the top end of the first push rod 214, the push plate 212 and the first push rod 214 are attached to each other, and the attachment positions of the push plate 212 and the first push rod 214 are designed in an inclined shape, the first push rod 214 can move upwards under the action of pushing the push plate 212 by the mechanism, so that the step of pushing the first push rod 214 upwards is saved, the mechanism has linkage property, the operation is more convenient and more convenient, the usability is improved, sliding grooves are formed on both sides inside the cavity 213, and sliding groove inside all sliding connection has the slide, and two sets of slides are all fixed in first push rod 214 both sides, and the design can make through under mutually supporting of sliding groove and slide like this for first push rod 214 is more smooth stable moves up, has improved stability and smoothness nature.

As shown in fig. 1 and fig. 6, the locking mechanism includes a second push rod 311, a torsion bar 312, a sliding groove 313, a locking groove 314 and a locking block 315, the second push rod 311 is fixed on the right side of the push plate 212, the torsion bar 312 is movably connected to the right side of the second push rod 311 through a bearing, the sliding grooves 313 are respectively formed at the upper and lower ends of the torsion bar 312, nine sets of locking grooves 314 are respectively formed at the sliding grooves 313 and the outer sides of the sliding grooves 313, which are close to the torsion bar 312, the right side of the fixed operating platform 1 is formed with a through hole which is matched with the torsion bar 312, the locking block 315 is fixed at the upper and lower ends of the through hole, the two sets of sliding grooves 313 and locking grooves 314 are slidably connected with the locking block 315, when the torsion bar 312 rotates, the push plate 212 is limited by the locking groove 314 and the locking block 315, and the first push rod 214 is fixed by.

As can be seen from fig. 1, 3, 8 and 9, the transmission mechanism includes a first toothed bar 411, a first gear 412, a rotating rod 413, a second gear 414, a rotating bin 415, a third gear 416, a second toothed bar 417, a sliding rail 418, a sliding block 419 and a hinge rod 420, the left side of the push plate 212 is fixed with the first toothed bar 411, the back of the first toothed bar 411 is engaged with the first gear 412, the first gear 412 is sleeved outside the rotating rod 413, the bottom end of the rotating rod 413 is movably connected with the fixed operating platform 1 through a bearing, the top end of the rotating rod 413 penetrates through the fixed operating platform 1 and is fixedly installed with the second gear 414, the top end of the left side of the fixed operating platform 1 is connected with the rotating bin 415 through a bolt and a thread, the right side of the second gear 414 is provided with the third gear 416, the top end of the third gear 416 is movably connected with the rotating bin 415 through a bearing, the right side of the third gear 416 is provided with the second toothed bar 417, the inside of the two sets of slide rails 418 are slidably connected with slide blocks 419, the slide blocks 419 are all fixed on the rotating bin 415, the right side of the front end of the second rack bar 417 is movably connected with a hinge rod 420 through a hinge shaft, and the middle position of the hinge rod 420 is movably connected on the upper surface of the fixed operating platform 1 through the hinge shaft, by means of the mechanism, the push plate 212 can move when pushing the torsion bar 312, so that the first rack bar 411 moves to drive the first gear 412 to rotate, under the transmission action of the second gear 414, the third gear 416 and the second rack bar 417, the hinge rod 420 rotates under the action of the hinge shaft, the pull rod 517 is pulled out, the linkage and the usability of the device are improved, the operation is convenient and fast, the left side of the fixed operating platform 1 is provided with a receiving groove mutually matched with the first rack bar 411, the diameter of the second gear 414 is larger than that of the third gear 416, the design can make the setting through accomodating the groove provide one to the space of stepping down to first ratch 411 like this for first ratch 411 can normally move, has improved the ease for use.

As shown in fig. 1, fig. 2, fig. 4, fig. 5 and fig. 7, the positioning mechanism includes a placing table 511, a baffle 512, a first sleeve 513, a second sleeve 514, a second spring 515, a pushing block 516, a pull rod 517 and a positioning slot 518, the top end of the first push rod 214 is fixed with the placing table 511, the two sides of the top end of the placing table 511 are both fixed with the baffle 512, the rear end of the inside of the placing table 511 is fixed with the first sleeve 513, the inside of the first sleeve 513 is sleeved with the second sleeve 514, the outside of the second sleeve 514 is sleeved with the second spring 515, the front end of the second sleeve 514 is fixed with the pushing block 516, the front end of the pushing block 516 is fixed with the pull rod 517, the front end of the pull rod 517 extends to the outer surface of the placing table 511 through the placing table 511, the front and rear sides of the top end of the placing table 511 are both provided with two groups of positioning slots 518, the bottom end of the front, front end pull rod 517 has articulated rod 420 through articulated shaft swing joint, can make to carry out the centre gripping location to the cutting edge under the effect of constant head tank 518 through this mechanism, it is convenient to process and polish the cutting edge, and prevent through the effect of baffle 512 that the cutting edge is squinted to both sides when placing, the dislocation appears, the ease of use has been improved, two sets of constant head tanks 518 are inside all to be the arc design, and constant head tank 518 is inside to be laminated all has the rubber cushion, the design can make the effect through constant head tank 518 can fix the cutting edge like this, and the effect through the rubber cushion, the fixed frictional force of cutting edge has been improved, stability has been increased.

As shown in fig. 2, 3 and 7, the fixing mechanism includes a rotating plate 611, two rotating bases 612, a clamping plate 613 and a third spring 614, two sets of rotating bases 612 are fixed at the middle position of the top end of the fixed operating platform 1, the top ends of the rotating bases 612 are movably connected with the rotating plate 611 through hinge shafts, two sets of rotating plates 611 close to the inner side of the fixed operating platform 1 are movably connected with two sides of the placing platform 511 through hinge shafts, two sets of rotating plates 611 close to the inner side of the fixed operating platform 1 are movably connected with the clamping plate 613 through hinge shafts, the bottom ends of the clamping plate 613 are fixed with the third spring 614 close to the outer side of the rotating plate 611, the bottom ends of two sets of third springs 614 are fixed on the rotating plate 611, when the first push rod 214 moves upwards, the rotating plate 611 and the rotating bases 612 are unfolded towards two sides under the hinge shafts, the cutting edges with different thicknesses and inclinations can be automatically attached under the action of the clamping plate 613 and the third spring 614, fix the cutting edge, easy operation and convenient, two sets of rotor plates 611 are all "L" font structural design, and two sets of splint 613 are inboard all for the cockscomb structure design, and the design can make under the effect of articulated shaft conveniently to the rotor plates 611 expand to both sides like this, and convenient operation and stability can carry out the centre gripping to the cutting edge through the effect of splint 613 and fix, have increased frictional force, have improved stability.

The working principle is as follows: when the cutting edge is to be positioned and fixed, the torsion bar 312 is pushed to move inward, the push plate 212 is pushed by the second push rod 311, so as to drive the first push rod 214 to move upward synchronously, so that the first spring 215 is elastically deformed and compressed, when the first push rod 214 moves upward, the rotating plate 611 is unfolded towards two sides under the action of the rotating base 612 and the hinge shaft, when the push plate 212 moves towards the left side, the first gear 412 is synchronously rotated under the action of the first toothed bar 411, so as to drive the rotating rod 413 to rotate, the second toothed bar 414 at the top end is driven to rotate under the action of the rotating rod 413, the third gear 416 is rotated under the action of the mutual meshing of the second gear 414 and the third gear 416, so as to drive the second toothed bar 417, so that the second toothed bar 417 moves towards the rear side under the action of the slide rail 418 and the slide block 419, when the second rack 417 moves to the rear side, the hinge lever 420 rotates in the same step by the hinge shaft to pull the pull rod 517 outward;

when the pull rod 517 moves towards the front end, the push block 516 is driven to move towards the front end, under the action of elastic deformation of the second spring 515, the second loop rod 514 moves outwards from the inside of the first loop rod 513, the distance between the two groups of positioning grooves 518 is adjusted, the cutting edge is placed inside the positioning grooves 518, the cutting edge is prevented from toppling and dislocating towards two sides under the action of the baffle plate 512, then the baffle plate 512 is loosened, under the state that the sliding groove 313 is in sliding connection with the fixture block 315, the push plate 212 moves towards the right side under the action of the reset of the first spring 215, the rotating plate 611 rotates towards the inside, the cutting edge is clamped and fixed under the action of the clamping plate 613 and the third spring 614, when the cutting edge is fixed, the push plate 212 is limited and fixed under the action of the fixture blocks 314 and 315 through the rotating torsion bar 312, and the operation is finished.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.