CN201120424Y - Helical clamping apparatus for bending type tube bender - Google Patents

Abstract

Disclosed is a device used to clamp pipes in a winding tube bender during the work of installing hydraulic pipes, comprising a handle(12), a guide screw(11), a nut(10) and fixture blocks(13,14). The nut(10) is fixed on the frame; the pipeline(1)will be clamped by rotating the handle(12)which is connected with the guide screw(11) and by pushing the fixture blocks(13,14). Generally, the clamp journey of a tube bender is only 2-3mm; the utility model adopts a guide screw with a guide journey of 6mm, so the pipeline that needs to be bent can be clamped after being rotated 1/3-1/2 of a loop. Since the helical gearing is of good self-locking capability, the pipeline, after being clamped, will not loosen even in the case of large load.

Description

The spiral clamping device of formula bending machine is used to go for a stroll

Technical field

This patent relates to be used for the device of clamping pipe in a kind of formula of going for a stroll bending machine that often uses in the conduit under fluid pressure installing engineering, comprises handle, leading screw, nut, fixture block.

Background technology

The formula bending machine of going for a stroll is the construction machinery that often uses in the installing engineering of conduit under fluid pressure, it and press-bending type bending machine, the pushing bending type bending machine angle of bend of having compared is controlled easily, the accurate advantage of controlling dimension when making the continuous bend pipeline, and also crooked position is out of shape little.It touches the pipeline (seeing accompanying drawing 1) that tool wants firm grip to be bent for three when bend pipe, existing bending machine has two kinds of clamping modes, a kind of is that hydraulic pressure clamps automatically, promote an inclined-plane or a lever by hydraulic cylinder, reaching the purpose of clamping, this mode mechanism more complicated; Another kind is a manual mode, manually moves handle, makes the eccentric shaft rotation, reaches the purpose of clamping, and this mode is operated not too convenient, relatively effort.

Summary of the invention

The purpose of this utility model provides a kind of screw type clamping device, and it and hydraulic clamp are relatively, and be simple in structure, compares with the eccentric shaft type clamping device, operates light.

The technical solution of the utility model is, a kind of spiral clamping device of the formula bending machine that is used to go for a stroll is by nut 10, leading screw 11, handle 12, fixture block 13,14 constitute, nut 10 is fixed on the frame, and rotational fixation is shouldered handle 12 on 11 at silk, just can promote fixture block 13 forward, 14, promote clamp 3 and portable briquetting 4 by fixture block 13,14, pipeline 1 is clamped.Suitably the helical pitch of design feed screw nut can make the operator only need 1/3rd or half-turn of rotating operation handle, just can finish clamping work.

Description of drawings

Fig. 1 is existing bending machine clamping mode figure

Fig. 2 is the clamping mode figure that this patent provides

Fig. 3 is handle orientations arrangement figure

Among the figure: 1. be bent pipeline, 2. crooked fetal membrane, 3. clamp, 4. portable briquetting, 5.6. inclined-plane briquetting pay, 7. hydraulic jack, 8. eccentric shaft, 9. handle, 10. nut, 11. leading screws, 12. handles, 13. fixture blocks, 14. fixture blocks.

The specific embodiment

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

The mould of the formula of going for a stroll bending machine is by crooked loose tool 2, clamp 3 and portable briquetting 4 are formed, see Fig. 1, during work, clamp 3 is embraced with crooked loose tool 2 and is bent pipeline 1, and the center rotation of the bent loose tool 2 of going for a stroll is together gone for a stroll on crooked loose tool pipeline 1, simultaneously, portable briquetting 4 can be along with pipeline 1 moves forward.Clamp 3 shown in Figure 1 promotes inclined-plane briquetting 6 by hydraulic jack 7, and inclined-plane briquetting 6 pushes inclined-plane briquetting 5 forward, promotes fixture block 13, clamping pipe 1; Portable briquetting 4 is moved handle 9 by the operator, makes 8 rotations of two eccentric shafts, promotes fixture block 14, clamping pipe 1.

Shown in Figure 2 is the mechanism that this patent provides, and chief component is a nut 10, leading screw 11 and handle 12 and fixture block 13,14.Nut 10 is fixed on the frame, and the handle 12 that rotation is connected with leading screw 11 promotes fixture block 13,14, steps up pipeline 1.The clamping stroke that bending machine is touched tool generally has only 2～3 millimeters, and we use helical pitch is 6 millimeters leading screw, only needs rotation 1/3～1/2 circle just can clamp the pipeline that needs bending.Because worm drive have good self-locking property, after the clamping, even load is very big, the state that yet can keep clamping can not become flexible.

Suitably adjust the setting angle of nut, can make three clamping levers be in same angle, see Fig. 3, like this, the operator can move handle to same direction and finish clamping work.

Claims (2)

1. the spiral clamping device of the formula bending machine that is used to go for a stroll comprises handle, leading screw, and nut, fixture block is characterized in that: nut is fixed on the frame, and handle is connected with leading screw.

2. the spiral clamping device of the formula bending machine that is used to go for a stroll according to claim 1 is characterized in that: the helical pitch of leading screw is to touch the twice to three times that tool clamps stroke, and the operator only needs turning handle three/can finish clamping work once circle or half-turn.

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