CN2287061Y

CN2287061Y - Hand plate bender with chain comission

Info

Publication number: CN2287061Y
Application number: CN 96218183
Authority: CN
Inventors: 朱德江
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-08-23
Filing date: 1996-08-23
Publication date: 1998-08-05
Anticipated expiration: 2006-08-23

Abstract

The utility model relates to a hand-operated plate bender with the transmission of a hinge. The utility model is characterized in that a fixed workpiece magnetic circuit is composed of a magnetic suction cup iron core arranged in a machine frame and a plate pressing type armature; a fixed front plate and a movable beam plate are connected by two sets of hinge mechanisms with four hinges, and the four hinges are symmetrically and slantways distributed; a wrenching handle is arranged on the lower end of the fixed front plate, and a handle slide groove and a bending angle limiting cursor are arranged on the lower end of the movable beam plate. The utility model has the advantages of small workpiece bending arc, accurate folding lines, precise cursor positioning operation, precise folding angles, fixed magnetic force, simple operation, novel structure, compact appearance, flexible action and reliable performance. The utility model is suitable for hand-operated benders of metal plate materials.

Description

The manual folder of hinge through formula

The utility model belongs to metal blank does not have machining machinery, the manual plate bending machine of the bending of particularly a kind of hinge through formula, magnetic force absorption fixation workpiece.

At present, plate bending machine commonly used adopts hydraulic pressure to rotate bending mostly, though efficient is high, and the equipment cost costliness, general medium or small factory is difficult to popularize employing.And the manpower manual bending machine is simple in structure because of it, can save the energy, reduces cost, so more easily promote.But still lacking this class facility product provides application.Chinese patent " the manual plate bending machine of ZL94240537.4 " adopts lever operated, is provided with guiding, location, clearance adjustment mechanism, therefore can satisfy use.But screw rod rotates the pressurization workpiece, move slowlyer, and workpiece crooked position radian is bigger than normal, for the higher situation of bending angle requirement, still can not satisfy.

The purpose of this utility model is to design and produce the manual folder of a kind of hinge through formula, employing magnetic force absorption fixation workpiece, hinge arrangement rotates the flap parts, realizes the bending operation to plate, and it is big to reach the bending angle, the crooked position radian is little, and mechanical realization is simple, the purpose of rapid operation.

The manual folder of hinge through formula of the present utility model is made up of frame, fixed front plate, movable beam slab, handle, it is characterized in that, is provided with the magnetic-disc iron core in frame, constitutes the magnetic circuit of absorption fixation workpiece with the presser type armature of frame end face; Fixed front plate adopts a kind of hinge axes to be connected with the uneven linkage of axis of rotation with movable beam slab upper end, and the fixed front plate lower end is provided with and pulls handle, is connected with handle runner and the spacing vernier of bending angle in movable beam slab lower end.

Linkage is symmetricly set between fixed front plate and the movable beam slab by two groups, four hinges, the workpiece bending axis of rotation Y of the rotating pin axis X of each hinge and movable beam slab upper edge is oblique angle theta, and the bearing pin axis of four hinges is oblique symmetrical in pairs.Each hinge is made up of flap, hinge seat, hinge head and rotating pin, and flap one side is provided with two axis holes, passes the rotating pin of hinge seat from axis hole, and bearing pin two ends and hinge seat are screwed on fixed front plate; The flap other end is provided with an axis hole, passes the axle journal of hinge head from axis hole, and the axis hole outer end is screwed, and hinge head is equipped with axle sleeve, with screw and packing ring axle sleeve is pressed on the movable beam slab.

Using method of the present utility model is, workpiece is placed on the frame end face, in the space below presser type armature, connects power switch, and armature is because of the magnetic force adhesive, and workpiece is fixed by magnetic force; Pull handle, movable beam slab upwards rotates and turns up, and when handle rotated along turning cylinder, the spacing vernier of handle front end edge slided, and by the vernier locator qualification size of rotational angle; Movable beam slab upwards rotates when turning up, and relies on the axle sleeve of four hinge heads on the linkage to push against the bending part that movable beam slab upper edge is adjacent to workpiece, guarantees that the bending part radian is less.Because flap can be along the rotation of hinge seat bearing pin with along bearing pin axial displacement, the pivot center of four hinges has angle mutually simultaneously, flap can only be along the axial slight displacement of bearing pin, and rotate along the workpiece bending line of the upper edge of movable beam slab, the bending line position that guarantees bending workpieces is accurate, and radian is very little.

The utility model has the advantages that: adopt magnetic force adhesive fixed form, the suction-combining force can reach 6400 kgfs, and is easy and simple to handle, and adhesive is stable; Adopt the linkage bending workpieces, workpiece bending part radian is little, and broken line is accurate; Adopt vernier spacing to handle, determine the bending angle, convenient and reliable, the bending angle is accurate; The complete machine structure novelty, compact appearance, simple to operate, flexible movements.Be applicable to the manual bending machine of metal blank.

Below in conjunction with drawings and Examples, the utility model is further described.

Fig. 1 is the organigram of the manual folder of hinge through formula;

Fig. 2 is the magnetic-disc organigram of the manual folder of hinge through formula;

Fig. 3 is the linkage organigram of the manual folder of hinge through formula;

Fig. 4 is the hinge structure schematic diagram of the manual folder of hinge through formula;

Fig. 5 is the A-A profile of Fig. 4;

Fig. 6 is the B-B profile of Fig. 4;

Fig. 7 is the C-C profile of Fig. 4.

As seen from Figure 1, the manual folder of hinge through formula of the present utility model, form by frame 1, fixed front plate 4, movable beam slab 5, handle 8, in box-shaped rack 1, be provided with magnetic-disc iron core 2 (see figure 2)s, magnetic-disc iron core 2 constitutes magnetic circuit with the presser type armature 3 of frame end face, utilizes magnetic force absorption fixation workpiece 10 between magnetic-disc iron core 2 and presser type armature 3; Dotted line 10 among Fig. 1 ' be the position signal after the workpiece bending.The elongated header board 4 that rigidly fixes adopts linkage 6 to be connected with the upper edge of elongated rigidity activity beam slab 5, the lower end of fixed front plate 4 is provided with the L shaped bar of pulling handle axis of rotation pin 7 and being provided with handle runner, the lower end of movable beam slab 5 connects handle 8, handle 8 is inserted in the handle runner of L shaped bar, the spacing vernier that the fixing handle of screw rotates up angle beta is set on the handle 8, also is the spacing vernier of workpiece bending angle β.

As seen from Figure 3, linkage 6 is to be symmetricly set between fixed front plate 4 and the movable beam slab 5 by two groups, four hinges, the rotating pin axis X of each hinge (being hinge axes) is oblique angle theta with the workpiece bending axis of rotation Y (being the whole axis of rotation of linkage) of movable beam slab 5 upper edges, θ=20 °, the bearing pin axis of four hinges is oblique symmetrical in pairs.

As seen from Figure 4, each hinge is made up of flap 11, hinge seat 12, hinge head 13, rotating pin 14, flap 11 1 sides are provided with two axis holes, from axis hole, pass the rotating pin 14 of hinge seat, rotating pin 14 two ends and hinge seat 12 usefulness screws 15 are fixed on (see figure 7) on the fixed front plate 4; Flap 11 other ends are provided with an axis hole, pass the axle journal of hinge head 13 from axis hole, and the axis hole outer end is fixing with screw 16, and hinge head is equipped with axle sleeve 17, with screw 18 and packing ring axle sleeve is pressed on (see figure 6) on the portable plate 5; Dotted line 5 among Fig. 5 ' be the position signal before movable beam slab 5 upwards rotates.

Claims

1, the manual folder of a kind of hinge through formula is made up of frame, fixed head, movable beam slab, handle, it is characterized in that being provided with in frame the magnetic-disc iron core, constitutes the magnetic circuit of absorption fixation workpiece with the presser type armature of frame end face; Fixed front plate adopts a kind of hinge axes to be connected with the uneven linkage of axis of rotation with movable beam slab upper end; The fixed front plate lower end is provided with pulls handle, connects handle runner and the spacing vernier of bending angle in movable beam slab lower end.

2, the manual folder of hinge through formula as claimed in claim 1, it is characterized in that, linkage is symmetricly set between fixed front plate and the movable beam slab by two groups, four hinges, the workpiece bending axis of rotation Y of the rotating pin axis X of each hinge and movable beam slab upper edge is oblique angle theta, θ=20 °, the bearing pin axis of four hinges is oblique symmetrical in pairs.

3, the manual folder of hinge through formula as claimed in claim 1, it is characterized in that, each hinge is made up of flap, hinge seat, hinge head, rotating pin, flap one side is provided with two axis holes, pass the rotating pin of hinge seat from axis hole, bearing pin two ends and hinge seat are screwed on fixed front plate, the flap other end is provided with an axis hole, pass the axle journal of hinge head from axis hole, the axis hole outer end is screwed; Hinge head is equipped with axle sleeve, with screw and packing ring axle sleeve is pressed on the movable beam slab.