CN2235468Y

CN2235468Y - Pier protective device with anchoring and clamping device

Info

Publication number: CN2235468Y
Application number: CN 95228741
Authority: CN
Inventors: 吕文炎
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-12-18
Filing date: 1995-12-18
Publication date: 1996-09-18
Anticipated expiration: 2005-12-18

Abstract

The utility model relates to a clamping device, which is a pier protective device of the end of an anchor steel wire in construction engineering. An open end of a cylinder body is provided with an anchor clamping device, the anchor clamping device is composed of a taper sleeve matched with a conic surface, an anchor device, a spherical surface guide tube abutting on the right end of the anchor device, a spring seat connected with the right end of the taper sleeve, and a spiral spring supported between the spherical surface guide tube and the spring seat. Thereby, the utility model has the advantages of reliable structure and convenient realization of automation programs.

Description

Pier protective device with anchor clamp

The utility model relates to a kind of anchor clamps, mainly refers to the pier protective device of the anchor steel wire end in the construction work.

At present, the three-jaw anchor clamps that adopt on the existing pier protective device, its three-jaw radial contraction or open (clamping or lift the part that goes into operation), be to rely on compression or do not compress between pawl the set helical spring of circular arc direction and realize, still because clamping force or unclamp power and helical spring elastic force direction inconsistent, this helical spring position is easily crooked, even stuck and lost efficacy, so use unreliablely, also be not easy to realize process automation.

The purpose of this utility model is in view of this, provides with tapered sleeve and reaches axially movable ground tackle composition anchor clamp in tapered sleeve, is suitable for the clamping and the pier nose program of same end thrust control workpiece.

The purpose of this utility model is achieved in that a kind of pier protective device with anchor clamp comprises mould, cylinder body, latching ram and pier nose piston, it is characterized in that: the openend at cylinder body is provided with an anchor clamp, this anchor clamp is by tapered sleeve and ground tackle with cone match, sphere conduit against the ground tackle right-hand member, be connected the spring base of tapered sleeve right-hand member, and the helical spring that is supported between sphere conduit and the spring base constitutes.

Above-mentioned ground tackle has more than 3.Above-mentioned anchor clamp and cylinder body openend are with releasable connection or be fixed as one.

Owing to adopt such scheme: reliable in structure, also be convenient to realize automated procedures.

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

Fig. 1 the utility model exemplary embodiments structural representation.

Among the figure: 1, anchor clamp, 11, tapered sleeve, 12, ground tackle, 13, the sphere conduit, 14, helical spring, 15, spring base, 2, mould, 3, cylinder body, 4, latching ram, 5, the pier nose piston

Present embodiment comprises anchor clamp 1, mould 2, cylinder body 3, latching ram 4 and pier nose piston 5, as shown in Figure 1, and wherein:

Anchor clamp 1 is to be made of tapered sleeve 11, ground tackle 12, sphere conduit 13, helical spring 14, spring base 15, wherein:

Its left ends of tapered sleeve 11 are with the openends that are threaded in cylinder body 3, and right-hand member is with the spring base 15 that is threaded, and the center has the taper hole that left end is a macropore, and the right-hand member of this taper hole has one section cylindrical hole.

Ground tackle 12 has the outer rim male cone (strobilus masculinus) consistent with the taper hole tapering of tapered sleeve 11, and the center is the face of cylinder, and right-hand member is a concave spherical surface; Three ground tackles 12 (three-jaw) inserting in uniform way is in the taper hole of tapered sleeve 11.

Sphere conduit 13 is hollow sections, and its left end has the sphere (its maintenance is well contacted, and the active force of spring is kept and axially parallel) that matches with ground tackle 12 concave spherical surfaces;

The two ends of helical spring 14 are supported in respectively on spring base 15 and the sphere conduit 13, and also available spring base 15 and the length that tapered sleeve 11 is connected are adjusted the elastic force that required helical spring 14 is worked.

Mould 2 left ends are connected on the pier nose piston 5, and right-hand member is relative and concentric with the left end of ground tackle 12; Pier nose piston 5 is in the latching ram 4 slidably, this latching ram 4 is in the cylinder body 3 again slidably, pressure oil is by the setting of valve in the oil circuit, can make latching ram 4 promote ground tackle 12 earlier, behind grip head 1 clamping work pieces, make pier nose piston 5 push away mould 2 piers again and press workpiece termination (genus prior art).

The operating principle of present embodiment:

When not working, helical spring 14 pushes away ground tackle 12 left, and this moment, workpiece was not clamped by anchor clamp 1; When making latching ram 4, pressure oil promotes ground tackle 12 compression helical springs 14 to the right, anchor clamp 1 clamping work pieces, and then, pressure oil makes pier nose piston 5 promote mould 2 again, and workpiece termination pier is swaged into shape.

Claims

1, a kind of pier protective device with anchor clamp comprises mould, cylinder body, latching ram and pier nose piston, it is characterized in that: the openend at cylinder body is provided with an anchor clamp, this anchor clamp is by tapered sleeve and ground tackle with cone match, sphere conduit against the ground tackle right-hand member, be connected the spring base of tapered sleeve right-hand member, and the helical spring that is supported between sphere conduit and the spring base constitutes.

2, by the described pier protective device with anchor clamp of claim 1, it is characterized in that: above-mentioned ground tackle has more than 3.

3, by the described pier protective device with anchor clamp of claim 1, it is characterized in that: above-mentioned anchor clamp and cylinder body openend are with releasable connection or be fixed as one.