CN200974081Y

CN200974081Y - Mechanical clamp apparatus

Info

Publication number: CN200974081Y
Application number: CN 200620046344
Authority: CN
Inventors: 朱健桦; 张春伟; 陆震宇; 朱平
Original assignee: Baoshan Iron and Steel Co Ltd
Current assignee: Baoshan Iron and Steel Co Ltd
Priority date: 2006-09-27
Filing date: 2006-09-27
Publication date: 2007-11-14
Anticipated expiration: 2016-09-27

Abstract

The utility model relates to a mechanical clamp, which is characterized in that a clamping head main body is U-shaped and two sidewalls of the U shape are inclined inward; a clamping bolt is arranged in the opening at the back of the clamping head main body; a synchronization plate is fixed on the head of the clamping bolt; two pieces of inclined wedge blocks are arranged on the synchronization plate and two right-angle planes of the two inclined wedge blocks are arranged in mutual parallel, wherein the two inclined planes are able to slide at the two sidewalls of the clamping head main body; two clamping plates are respectively connected with the right-angle planes of the two inclined wedge blocks. The mechanical clamp is utilized to clamp the single-leaf strip steel and realize tension rolling. Besides, the design of the utility model is a more-haul-more-tight structure, which is able to guarantee the tension realization of the pulling force device fore and after the rolling mill to the strip steel and avoid the occurrence of sudden down loading.

Description

Mechanical clamp

Technical field

The utility model relates to the clamping device field, relates in particular to a kind of mechanical clamp.

Background technology

In the monolithic cold rolling of strip steel field of short size, be difficult to the tension-rolling that realizes that common coiled strip steel is commonly used when cold rolling at present.This is because monolithic rolls with coil rolling and had any different by size restrictions: equipment formed tension-rolling before and after the band steel of rolling can pass through uncoiler, kink, milling train, coiling machine etc.; And monolithic band steel is too short because of size, can't rolling, and can not pass through front and back coiling machine, kink etc. and form tension-rolling.

Prior art generally only carries out manually feeding the steel tension free rolling to the monolithic band steel of short size at present, also lacks the embodiment of corresponding band steel anchor clamps.

By retrieval, in the prior art, VAI is by realizing the tension-rolling of monolithic band steel to increase tensile machine before and after the milling train.Its clamp method to band steel two ends takes to use earlier the cam precompressed, directly vertically is pressed in the form realization of belt steel surface then by plunger case.It is very smooth that the method can be pressed, but its form that forms strip tension is to keep the normal pressure of plunger case to belt steel surface constantly, produces potential safety hazard like this under situations such as burst off-load.

Several patents of other relevant anchor clamps, bigger with the utility model difference, wherein, " tensile test fixture " (patent No. CN98204138.1/CN200320121616.1), require the two ends of clipped object itself to be necessary for dovetail structure (dumbbell shaped), can not be used to clamping with steel; Patent " the rotation fiber increases composite " (patent No. CN99100381.0), the clamping stretching that is used to rotate fibrous material can not be used to the clamping with steel; Patent " tensile stress testing tube anchor clamps " (patent No. JP54097083A) though also be tapered wedges shape mechanism, only is used for the clamping of pipe fitting, and requires the head of clipped object to do tapered.

Summary of the invention

The utility model purpose is, a kind of mechanical clamp is provided, and can be used for belt steel rolling, make after clamp, can apply pulling force to the band steel, and also be tension force, carry out the tension-rolling of monolithic band steel.

The utility model design is as follows, and this mechanical clamp comprises: a chuck body, be the U type, and the two side of this U type slopes inwardly; One fishbolt is installed in the perforate of chuck rear body; One synchronous plate is fixed on the head of fishbolt; Two tapered wedges are installed on the described synchronous plate, the two right angle faces setting parallel to each other of two tapered wedges, and two inclined-planes can slide on the two side of chuck body; Two clamping plates is connected on the right angle face of two tapered wedges.

Described fishbolt one end also is provided with handle and can be used for screwing and unscrewing of fishbolt.This mechanical clamp also comprises two pairs of baffle plates that are separately fixed on the chuck body, and each baffle plate is provided with chute, and described tapered wedges slides in this chute.Slide plate in the middle of also respectively being provided with one between two tapered wedges and the chuck body sidewall, this centre slide plate is fixed on the chuck body.Have oil groove on the sliding surface in the middle of described on the slide plate.Two tapered wedges and synchronous plate correspondence position are provided with sliding tray, and described synchronous plate slides in this sliding tray.The working surface of clamping plate is provided with some pawls, is to be connected by dovetail groove with tapered wedges.

The utility model provides a kind of simple, reliable clamping tool that acts on band steel both sides for monolithic strip tension rolling mill practice, and it can be followed the band steel and seesaw in the process of reversible rolling, and remains the clamping action to the band steel.And it is designed to the structure of drawing tighter and tighter, can guarantee that the puller system before and after the milling train realizes that to the tension force of band steel the off-load of avoiding happening suddenly takes place.

Description of drawings

Fig. 1 is a mechanical clamp structural representation of the present utility model;

Fig. 2 is for using the rolling schematic diagram of monolithic strip tension of the utility model technology;

Fig. 3 is the chuck body part schematic diagram of mechanical clamp;

Fig. 4 is the stop features schematic diagram of mechanical clamp;

Fig. 5 is the synchronous plate part schematic diagram of mechanical clamp;

Fig. 6 is the fishbolt part schematic diagram of mechanical clamp;

Fig. 7 is the tapered wedges part schematic diagram of mechanical clamp;

Fig. 8 is the cleat plate part schematic diagram of mechanical clamp.

The specific embodiment

The mechanical clamp of accompanying drawings the utility model technology.

As shown in Figure 1, mechanical clamp comprises baffle plate 1, jump ring 2 (circlip for shaft), copper backing 3, fishbolt 4, handle 5, chuck body 6, synchronous plate 7, tapered wedges 8, bolt 9 and clamping plate 10.

Shown in Fig. 3 to Fig. 8 each several part part schematic diagram:

Tapered wedges 8 and clamping plate 10 are connected to an assembly by mutual dovetail groove, are installed on the chuck body 6 by baffle plate 1.Baffle plate 1 itself is fixed on the chuck body 6 by bolt 9.

It is planar that the outer surface of clamping plate 10 is made pawl, so that can sting the taut band steel better after compressing.

The interior inclined-plane of chuck body 6 requires height wear-resisting firmly, and it drives oil groove with the surface that tapered wedges 8 matches, and guarantees good lubricating effect.

Baffle plate 1 is ladder-type structure, and is suitable with the width dimensions of chuck body 6 and tapered wedges 8, and it has two effects: the one, with tapered wedges 8 from bilateral symmetry be assembled on the chuck body 6; The 2nd, form the seesaw track of direction of constraint tapered wedges 8.

Two tapered wedges 8 realize that by synchronous plate 7 symmetry installs and be synchronized with the movement up and down.

The front end of synchronous plate 7 embeds in the groove of two tapered wedges 8 afterbodys formation up and down, and tail end is installed in the screw thread front end of fishbolt 4 by jump ring 2 and copper backing 3.

Fishbolt 4 is assemblied in the screwed hole of chuck body 6, realizes screwing or unscrewing by handle 5 or with spanner.When screwing, promote synchronous plate 7 and travel forward, when unscrewing, synchronous plate 7 is retracted by copper backing 3.

When synchronous plate 7 seesaws, drive tapered wedges 8 and move along the inclined-plane chuck body 6 in, the distance that two symmetrical clamping plate are 10 is correspondingly dwindled or is enlarged, thereby realization is to the clamping of object (band steel) or unclamp.

Concrete working method is as follows:

Unscrew fishbolt 4, drive synchronous plate 7 post-tensionings, tapered wedges 8 synchronous oblique retreating, last lower plate 6 unclamps thereupon.To be with steel to put into lower plate 6 as shown in Figure 2, and screw fishbolt 4, synchronous plate 7 promotes wedge 5 synchronously and marches forward, and last lower plate 6 closures will be with steel to sting tightly.Initial compaction forces is by the pretightning force decision of fishbolt 4.When the band steel build open after, the tension force (pulling force) at band steel two ends produces one by clamping plate 6, tapered wedges 5 on chuck body 2 makes the open component of chuck mouth, but because chuck body 2 will overcome strain, therefore its reaction force affacts on the clamping plate 6 by tapered wedges 5 again, finally makes it to press from both sides tighter and tighter.

Anchor clamps are followed band steel (rolled piece) and are seesawed in the operation of rolling, remain the clamping to the band steel, and transmit the pulling force (tension force) to the band steel.

After rolling finishing, unclamp fishbolt, synchronous plate retreats, and last lower plate separates, and unclamps the band steel.

Claims

1. mechanical clamp is characterized in that comprising:

One chuck body is the U type, and the two side of this U type slopes inwardly;

One fishbolt is installed in the perforate of chuck rear body;

One synchronous plate is fixed on the head of fishbolt;

Two tapered wedges are installed on the described synchronous plate, the two right angle faces setting parallel to each other of two tapered wedges, and two inclined-planes can slide on the two side of chuck body;

Two clamping plates is connected on the right angle face of two tapered wedges.

2. mechanical clamp as claimed in claim 1 is characterized in that: described tapered wedges is to be connected by dovetail groove with clamping plate.

3. mechanical clamp as claimed in claim 1 or 2 is characterized in that: also comprise two pairs respectively with the baffle plate that fixes on the chuck body, each baffle plate is provided with chute, and described tapered wedges slides in this chute.

4. mechanical clamp as claimed in claim 3 is characterized in that: slide plate in the middle of also respectively being provided with between described two tapered wedges and the chuck body sidewall, this centre slide plate is fixed on the chuck body.

5. mechanical clamp as claimed in claim 4 is characterized in that: have oil groove on the sliding surface in the middle of described on the slide plate.

6. mechanical clamp as claimed in claim 1 is characterized in that: be provided with sliding tray with the synchronous plate correspondence position on described two tapered wedges, described synchronous plate slides in this sliding tray.

7. mechanical clamp as claimed in claim 1 is characterized in that: the working surface of described clamping plate is provided with some pawls.

8. mechanical clamp as claimed in claim 1 is characterized in that: described fishbolt end connects one handle.