CN201432333Y

CN201432333Y - Adjustable utility knife row

Info

Publication number: CN201432333Y
Application number: CN200920186106XU
Authority: CN
Inventors: 张宏; 史琦
Original assignee: Anhui Bowei Changan Electronics Co Ltd
Current assignee: Anhui Bowei Changan Electronics Co Ltd
Priority date: 2009-06-26
Filing date: 2009-06-26
Publication date: 2010-03-31
Anticipated expiration: 2019-06-26

Abstract

The utility model discloses an adjustable utility knife row which is provided with a knife bar that is driven by a power mechanism and has a tapered bottom end, and a screw rod fixedly connected withthe knife bar in a cross shape, wherein the screw rod arranged in at least one side part of the knife bar is connected with blades in a cross shape, and the blades can slide along the axial directionof the screw rod and are locked. The utility knife row has the structure similar to a compass; and when the utility knife row is used for cutting soft board, a positioning screw is positioned at the position of the centre of a circle, the blades at two ends of the screw rod rotate around the positioning screw and can respectively line out an inner circle and an outer circle of a circular ring-shaped sealing ring, and the utility knife row can accurately and rapidly cut out the sealing ring with the needed specification. Furthermore, the utility knife row has simple structure, convenient operation and low processing cost.

Description

Adjustable stroke of blade row

Technical field:

The utility model relates to a kind of making mould, relates in particular to a kind of adjustable stroke of blade row.

Background technology:

At present, making on punch press discharging packing ring, reduction box sealing gasket, the oil cylinder axle of sealing gasket, sealing ring of flexible sheet (as wool felt, sponge rubber plate, aviation vulcanie plate, asbestos board etc.); Blower fan, air channel are during with sealing gasket etc., during circular hole on annular spare and the irregular sealing gasket, usually adopt hollow punch, double-layer hollow drift, punch press combined dies drift, utilize craft or lathe to dash, get out inside and outside circular hole, when running into the bigger inside and outside circular hole of profile irregular size, draw a trim line earlier and cut mode such as inside and outside circle then by hand with scissors and process.Its defective is:

1, manual with scissors cut the inside and outside circle major diameter still can, minor diameter circle then difficulty cuts, the rounded edge that cuts in addition is irregular, irregular, is difficult to guarantee the drawing requirement, efficient is low in addition.

2, if make hollow punch, double-layer hollow drift, the circle of manufacturing cost height and processing different-diameter need be made the drift of different-diameter, be difficult for keeping, because hollow punch, double-layer hollow drift cutting edge are very thin, accidentally very easily clashing and breaking cause and scrap, and the drift cutting edge needs Quenching Treatment, otherwise hardness is not enough, does not process several drifts and draws motionless with regard to wearing and tearing.Drift quenches and is difficult to hold in addition, the mistake cutting edge is arranged slightly just by scaling loss, causes and scraps.

3, punch press is with the vulcanie plate of combined dies below processing φ 15mm, can manage it when asbestos board thickness is no more than 2mm, the aperture is strengthened again, thickness of slab increases, be easy to generate that aperture size is overproof, the biased phenomenon of moving in hole, bigger if felt, sponge rubber plate process part error.Use punch die expense height, and be subjected to sheet metal thickness restriction (sheet metal thickness surpasses 5mm, easily produces hypotenuse when die-cut), if cut annular ring with scissors, then inefficiency and the inside and outside circle unshapeliness that cuts are difficult to meet the requirements, and easily waste raw material.

Summary of the invention:

For overcoming the defective of prior art, the purpose of this utility model is to provide a kind of adjustable stroke of blade row, can accurately and fast flexible sheet be made the annular seal circle, and draws blade row and can regulate arbitrarily according to the interior external diameter size of required sealing ring.

The utility model technical solution problem adopts following technical scheme:

Adjustable stroke of blade row, described stroke of blade row has:

One bottom that can be driven by actuating unit is the knife bar of taper; And

One forms the screw rod that cross can be fixedlyed connected with described knife bar;

Being cross on the screw rod of at least one sidepiece of described knife bar is connected with and can slides and the blade of locking along the screw axis direction.

Design feature of the present utility model also is:

All being cross on the screw rod of described knife bar both sides is connected with and can slides and the blade of locking along the screw axis direction.

Radially offer the through hole that can supply described screw rod to pass on the described knife bar, and on the screw rod that is positioned at the knife bar both sides, be provided with the screw rod hold-down nut that screw rod can be locked on the knife bar.

On described screw rod, radially offer the strip groove that can supply described blade to pass, and on the screw rod that is positioned at the blade both sides, be provided with the blade hold-down nut that blade can be locked on the screw rod.

Be provided with the dog screw of a taper removably in the bottom of described knife bar, the central axis of described dog screw and the central axes of described knife bar.

Compared with the prior art, the beneficial effects of the utility model are embodied in:

1, improved the product quality that processes part.Mark the inside and outside circle neat in edge, solved the uneven phenomenon of inside and outside circle that cuts because of manual, satisfied the product size required precision, mark the inside and outside circle precision and can guarantee in ± 0.1 margin of tolerance.

2, improved operating efficiency.With the liner of drawing blade row processing, material is a wool felt, thickness 5mm, cylindrical φ 133, interior round φ 119,1 of working-hours quota processing in 8 minutes only needed to machine in 0.5 minute with drawing blade row processing, improve 15 times of work efficiency, this project is chosen as the prize of the technological innovation fourth class by Science and Technology Commission of our company.

3, save raw material.As the liner in company's product, two kinds of parts of pad, be the aviation rubber slab, thickness 1mm, a kind of excircle dimension φ 130, interior round φ 100; Another kind of cylindrical φ 60, interior round φ 16 with drawing blade row clamping 4 blade, disposablely process two kinds of parts, have saved the material of φ 60 cylindricals, single-piece materials ≠ 1 * 65 * 65.

4, saved the drift manufacturing cost.Be made as example with above-mentioned pad cylindrical φ 60, interior round φ 16 double-layer hollow drifts, material 45# round steel 2.4Kg (φ 70 * 80), 12 yuan of fee of materials, processing charges contain 12 yuan of heat treatments, amount to 24 yuan, and one drawing the blade expense be: one can cut into 6 * 6 * 150 white steel knives ≠ 24 on 1.5 * 3 * 50 blade, a white steel knife is 15 yuan, then each blade expense is 0.63 yuan, and blade is reusable after reconditioning, processing different size circle all can, and hollow punch can only be processed single specification.3～4 hours cutting edges of hollow punch continuous operation in service life are just easy to wear, and the continuous processing of blade is being compared with hollow punch service life, process under the situation of same material to reach 30～40 hours, and be 10 times of hollow punch.

5, the expansion of usability.The cutting edge reconditioning of drawing blade is become lathe cutter form, can draw system metal species light sheet such as copper coin, aluminium sheet, the circle of cold-rolled steel sheet, annulus, in addition knife bar is strengthened, cylinder is changed into the handle of No. 3 taperings of Mohs, screw rod strengthens, and then can be contained in the large diameter sheet metal of processing on upright drill, the radial drilling machine.

Of the present utility model stroke of blade row is similar to the compasses structure, when the cutting flexible sheet, dog screw is in home position, the blade at screw rod two ends rotates the interior circle and the cylindrical that can mark the annular seal circle respectively around dog screw, can cut out the sealing ring of required specification accurately and fast, and stroke blade row is simple in structure, easy and simple to handle, processing cost is low.

Description of drawings:

Fig. 1 draws the structural representation of blade row for the utility model.

Number in the figure: 1 knife bar, 2 screw rods, 3 screw rod hold-down nuts, 4 blades, 5 blade hold-down nuts, 6 dog screws.

Below pass through the specific embodiment, and the utility model is described in further detail in conjunction with the accompanying drawings.

The specific embodiment,

Non-limiting examples is as described below:

Embodiment: referring to Fig. 1, the blade row of drawing of present embodiment has:

Knife bar 1, can be set to columniform, its upper end can be connected on the drilling machine and clamp driven rotary with the movement chuck, one section of knife bar is set to flat, on the knife bar of this section flat, along knife bar radially offer a through hole, screw rod 2 passes from this through hole and forms cross with knife bar and be connected, when connecting screw rod hold-down nut 3, two nut screwing clampings on the screw rod of knife bar both sides respectively, screw rod 2 can be locked on the knife bar 1.

The groove of radially respectively offering segment length's bar shaped at the screw rod upper edge of knife bar both sides screw rod, pass screw rod 2 and be connected for blade 4 with the screw shaped across, and when being connected with blade hold-down nut 5, two nut screwing clampings on the screw rod that is positioned at the blade both sides, blade can be locked on the screw rod 2.

In concrete the enforcement, blade 4 can be cut into the thin slice of thick 1.5mm, width 3mm, length 50mm with W18Cr4V high-speed tool steel (being commonly called as white steel knife) line, repairs the edge of a knife and forms through emery wheel reconditioning, the oilstone back of the body.

As a kind of embodiment of the present utility model, can only on the screw rod 2 of knife bar 1 one sides, blade 4 be set, when blade when knife bar rotates a circle, draw the sealing ring that blade row can only cut out a circle,, then need to adjust the position of blade along the axis of screw rod 2 if need the sealing ring of processing annular, home position is constant, blade rotates a circle around knife bar once more, and blade then can mark the circle of another different-diameter, can cut out the sealing ring of annular.

As preferred embodiment of the present utility model, blade 4 can be set respectively on the screw rod of knife bar 2 both sides, distance along the tip of axially adjusting blade respectively of screw rod 2 to knife bar awl point (promptly is in waiting to draw, the radius of cylindrical), and make the most advanced and sophisticated in the same plane of two blades and knife bar, on drilling machine, clamp knife bar with the movement chuck, the flexible sheet of need processing is fixed on plank or other back flexible sheet, open drilling machine, two blades mark the interior circle and the cylindrical of required radius simultaneously, also promptly process the O-ring seal of required size, can increase work efficiency greatly, improve the cutting precision, alleviate working strength of workers, can popularize in the process and assemble occasion that similar requirement is arranged.

As a kind of embodiment of the present utility model, knife bar 1 can be integral structure, and the bottom of knife bar should be taper, and it is conical that the best should be, and knife bar is as the fixed feet of compasses when drawing blade row work.

Really, the dog screw 6 of one taper (best for conical) also can be set, it is connected in the bottom of knife bar 1 removably, can adopt key to be connected between dog screw 6 and the knife bar 1 or be threaded or being removably connected of other routine, certainly, be threaded, when knife bar 1 is driven rotation if adopt, preferably should make dog screw stubborn more tight more on knife bar, be unlikely to loose or dislocation.When cutting annular seal circle, should guarantee that also the central axes of dog screw and knife bar is to guarantee that knife bar 1 drives screw rod 2 and stably rotates, and should adjust the most advanced and sophisticated in the same plane of two blades and dog screw, flexible sheet be cut out identical thickness to guarantee two blades.

When specifically being provided with, also scale can be set on screw rod, so that can promptly adjust the position of blade, thereby can cut out the O-ring seal of required size accurately and fast, the utility model is drawn blade row and is fit to the thick flexible sheet of 0.3-10mm (felt, rubber slab, asbestos board etc.), carry out inside and outside circle processing, can process circle or ring washer, sealing ring etc. that diameter is 15-200mm.

The using method of the present utility model and the course of work (describing) in conjunction with part processing:

1. the processing of cylindrical.Part name: liner, material: aviation rubber slab 1140, thickness 4mm, excircle dimension φ 60, described by preceding assembling, blade hold-down nut 5 is unclamped, and it is most advanced and sophisticated to about blade hold-down nut inner side edge size 29mm roughly to be transferred to dog screw 6, blade is used fixing, with slide measure detection and location screw tip to point width from, finely tune to 30mm (R30), point of a knife hangs down about 0.5mm than dog screw is sharp, mainly is that the assurance dog screw can be pushed down workpiece all the time.Fastening blade clamps drawing on the drill chuck that blade row is clamped in bench drill of finishing of adjustment.Filling up plank or five-ply board or thicker vulcanie plate on the bench drill work top, aviation rubber slab to be processed is fixed on the backing plate with drawing pin, the moving blade row of drawing of firing platform drilling rotates, handling the bench drill handle moves downward the bench drill main shaft, until blade workpiece is drawn down, close after bench drill treats that main shaft stops operating, take off the workpiece under drawing.

2. inside and outside circle synchronous processing.Part name: liner, material: wool felt, thickness 5mm, cylindrical φ 133, interior round φ 119.Each fixes 1 blade with limit, the screw rod left and right sides, and adjustment razor sharpened to dog screw point distance is 66.5 on one side, after another side is 59.5, and fastening blade, as stated above, the fixing stroke blade row of clamping, workpiece are shaped to processing work.

3. many time processing of same material are shaped.Part name: liner, pad, material: aviation rubber slab 1140, thickness 1mm, liner: cylindrical φ 130, interior round φ 100, pad: cylindrical φ 60, interior round φ 16.2 blades are respectively adorned on limit, the screw rod left and right sides, for keeping both sides stressed even substantially, when debuging blade, noted the both sides range distribution, Yi Bian adjustment is apart from being 65 as stated above, another side is 50, and this is the liner processing dimension; The distance of pad is 30 on one side, and another side is 8, is of a size of 7 by knife bar flat filament thickness 14 is monolateral, add blade thickness half 0.75, be 7.75 not enough 8mm altogether, so but cushioning 0.25mm copper sheet transfers to fixing tightly each blade behind the size 8mm.As stated above clamping, fixing draw a blade row, workpiece after, time processing 2 parts that are shaped.

Claims

1, adjustable stroke of blade row is characterized in that, described stroke of blade row has:

One bottom that can be driven by actuating unit is the knife bar (1) of taper; And

One forms the screw rod (2) that cross can be fixedlyed connected with described knife bar;

Being cross on the screw rod (2) of at least one sidepiece of described knife bar (1) is connected with and can slides and the blade (4) of locking along the screw axis direction.

2, adjustable stroke of blade row according to claim 1 is characterized in that, all is cross and is connected with and can slides and the blade of locking along the screw axis direction on the screw rod (2) of described knife bar (1) both sides.

3, adjustable stroke of blade row according to claim 1 and 2, it is characterized in that, radially offer the through hole that can supply described screw rod (2) to pass on the described knife bar (1), and on the screw rod that is positioned at the knife bar both sides, be provided with the screw rod hold-down nut (3) that screw rod can be locked on the knife bar.

4, adjustable stroke of blade row according to claim 1 and 2, it is characterized in that, on described screw rod (2), radially offer the strip groove that can supply described blade (4) to pass, and on the screw rod that is positioned at the blade both sides, be provided with the blade hold-down nut (5) that blade can be locked on the screw rod.

5, adjustable stroke of blade row according to claim 1 and 2 is characterized in that, is provided with dog screw (6), the central axis of described dog screw and the central axes of described knife bar of a taper removably in the bottom of described knife bar (1).