CN203390336U

CN203390336U - Overload protection device of threading clamp

Info

Publication number: CN203390336U
Application number: CN201320390408.5U
Authority: CN
Inventors: 吴永旭; 张永泉; 姜娟; 张永
Original assignee: Shanghai East Pump Group Co Ltd
Current assignee: Shanghai East Pump Group Co Ltd
Priority date: 2013-07-02
Filing date: 2013-07-02
Publication date: 2014-01-15
Anticipated expiration: 2023-07-02

Abstract

The utility model discloses an overload protection device of a threading clamp. The overload protection device comprises a clamp body and a die body, wherein the clamp body is a hollow drum body with an opening at one end, and the other end of the clamp body is provided with a rotating handle; a ratchet cover is fixedly arranged in the clamp body and is provided with ratchets; the tail end of the die body is connected with a die of the threading clamp, the head end of the die body, which is opposite to the tail end, extends from the opening of the clamp body and is provided with ratchets corresponding to the ratchet cover; the die body is meshed with the ratchet cover and is connected with the ratchet cover by a bolt. The overload protection device disclosed by the utility model has the beneficial effects that the use is convenient, and due to the arrangement of the overload protection structure, the damage of the die in processing is avoided; the processing is not dependent on handfeel, and the clamp body and the ratchet are separated when in overloading, so that the thread processing quality is effectively improved.

Description

A kind of threading clamp overload protection arrangement

Technical field

The utility model relates to a kind of screwing tool, is specifically related to a kind of threading clamp overload protection arrangement.

Background technology

In industrial production and maintenance of equipment, use widely and use screw die threading, be commonly called as mantle fiber.Referring to Fig. 1, it is existing threading clamp; comprise handle 4, screw die body 3, screw die 2 and hold-down screw 1; although this threading clamp has feature simply and easily; but there is its fatal weakness; there is no overload protection function; because material is inhomogeneous or other fortuitous event, cutting force is crossed conference screw die is damaged or workpiece screw thread is processed into waste product.Therefore invent a kind of threading clamp that meets overload protection function necessary.

Utility model content

The purpose of this utility model is to provide a kind of threading clamp overload protection arrangement, by being arranged on existing threading clamp, having overcome the above-mentioned deficiency of existing threading clamp machining screw, thereby has realized the purpose of this utility model.

The technical problem that the utility model solves can realize by the following technical solutions:

A kind of threading clamp overload protection arrangement, it is arranged on a threading clamp, this threading clamp overload protection arrangement comprises a clamp body and is located at the screw die body in this clamp body, wherein: clamp body is the hollow cylindrical shell of an end opening, and the clamp body other end is provided with turning handle; In clamp body, be fixedly installed a ratchet lid, ratchet covers and offers ratchet;

The tail end of screw die body connects the screw die of threading clamp, and the head end relative with this tail end stretches in the opening of clamp body, offers with ratchet and cover corresponding ratchet on this head end, and screw die body and ratchet lid are meshing;

Screw die body is connected by a bolt between covering with ratchet.

In a preferred embodiment of the present utility model, bolt enters from ratchet lid one end, and then penetrates screw die body; Between ratchet lid and bolt, be provided with a spring.

In a preferred embodiment of the present utility model, the triangular shaped ratchet of the ratchet that ratchet covers for distributing along even circumferential.

In a preferred embodiment of the present utility model, clamp body is fixedly connected with ratchet lid by a steady pin.

In a preferred embodiment of the present utility model, the tail end of screw die body is fixedly connected with the screw die of threading clamp by a pin.

The beneficial effects of the utility model are:

Easy to use, owing to thering is overcurrent protection structure, avoided the damage of screw die in processing; No longer rely on feel processing, during overload, clamp body and ratchet lid are thrown off, and have effectively improved screw processing quality.

Accompanying drawing explanation

Fig. 1 is the structural representation of existing threading clamp.

Fig. 2 is the structural representation of a kind of threading clamp overload protection arrangement described in the utility model.

Fig. 3 is the structural representation of the clamp body of a kind of threading clamp overload protection arrangement described in the utility model.

Fig. 4 is another angle schematic diagram of the clamp body of a kind of threading clamp overload protection arrangement described in the utility model.

Fig. 5 is the structural representation of the ratchet lid of a kind of threading clamp overload protection arrangement described in the utility model.

Fig. 6 is the side view of the ratchet lid of a kind of threading clamp overload protection arrangement described in the utility model.

Fig. 7 is the structural representation of the screw die body of a kind of threading clamp overload protection arrangement described in the utility model.

The specific embodiment

For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with the specific embodiment, further set forth the utility model.

Be illustrated in figure 2 a kind of threading clamp overload protection arrangement described in the utility model, it is arranged on a threading clamp, and this threading clamp overload protection arrangement comprises a clamp body 100 and be located at the screw die body 300 in this clamp body 100, wherein:

Shown in Fig. 3, Fig. 4, clamp body 100 is the hollow cylindrical shell of an end opening, and clamp body 100 in the drawings right-hand member is provided with the boss 60 for mounting handle, offers the through hole 61 for mounting handle on boss 60; Clamp body 100 side openings are provided with groove 101, the interior setting of clamp body 100 is provided with a ratchet lid 200, ratchet covers 200 side openings and is provided with screwed hole 204, and fixing with clamp body 100 by a pin 50, this pin 50 is arranged in groove 101 and through screwed hole 204, thereby clamp body 100, ratchet lid 200 are fixedly connected with.

Shown in Fig. 5, Fig. 6, ratchet lid 200 is fixedly connected with screw die body 300 by an adjustment bolt 210, on ratchet lid 200, offers groove 202, and groove 202 centers offer porose 203, adjustment bolt 210 is arranged on 203Nei，Qie hole, this hole 203 and adjusts between bolt 210 and is also provided with spring 211.

Ratchet covers 200 other ends and is provided with some triangular shaped ratchet 201 that distribute along even circumferential, and ratchet lid 200 is meshing with screw die body 300 by these ratchets 201.

Referring to Fig. 7, screw die Ti310 one end is provided with screw die installation cavity 300, between screw die body 310 and screw die, by screw die fixing pin 311, is fixedly connected with; Screw die body 310 other ends are provided with the ratchet 301 matching with the ratchet 201 of ratchet lid 200; Screw die body 310 stretches into from clamp body 100 with ratchet 301 one end, thereby is connected with the ratchet lid 200 in clamp body 100.

In practice, the size of moment of torsion during according to threading die mantle fiber, determines to adjust the degree of depth that bolt 210 screws in screw die body 310, and screw die body 310 is fixed on screw die in screw die installation cavity 300 by fixing pin 311; After screw die body 310 and ratchet lid 200 install, install to together in clamp body 100, pin 50 screws in ratchet lid 200 by the groove 101 on clamp body 100, screwed hole 204, and clamp body 100 is by boss 60, through hole 61 mounting handles.

When specific works; the active force of handle is delivered to and on screw die, is realized mantle fiber by clamp body 100, pin 50, ratchet lid 200, screw die body 300 successively; when or other situation cutting moments uneven due to material surpass the frictional force between screw die body and ratchet lid; ratchet lid 200 is by Compress Spring 211; ratchet lid 200 and screw die body 310 are departed from and skid, realize overload protection.

In addition, processing different screw threads needs different moments of torsion, now by adjusting the screw-in depth of bolt 210, meets.

More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and description, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims

1. a threading clamp overload protection arrangement, it is arranged on a threading clamp, it is characterized in that, and this threading clamp overload protection arrangement comprises a clamp body and is located at the screw die body in this clamp body, wherein:

Described clamp body is the hollow cylindrical shell of an end opening, and the clamp body other end is provided with turning handle; In clamp body, be fixedly installed a ratchet lid, described ratchet covers and offers ratchet;

The tail end of described screw die body connects the screw die of described threading clamp, and the head end relative with described tail end stretches in the opening of clamp body, offers with ratchet and cover corresponding ratchet on described head end, and screw die body and ratchet lid are meshing;

Described screw die body is connected by a bolt between covering with ratchet.

2. a kind of threading clamp overload protection arrangement as claimed in claim 1, is characterized in that, described bolt enters from ratchet lid one end, and then penetrates screw die body; Between ratchet lid and bolt, be provided with a spring.

3. a kind of threading clamp overload protection arrangement as claimed in claim 1, is characterized in that, the triangular shaped ratchet of the ratchet that described ratchet covers for distributing along even circumferential.

4. a kind of threading clamp overload protection arrangement as claimed in claim 1, is characterized in that, described clamp body is fixedly connected with ratchet lid by a steady pin.

5. a kind of threading clamp overload protection arrangement as claimed in claim 1, is characterized in that, the tail end of described screw die body is fixedly connected with the screw die of threading clamp by a pin.