CN216680049U

CN216680049U - Handheld forging pliers

Info

Publication number: CN216680049U
Application number: CN202121551792.3U
Authority: CN
Inventors: 贾永发; 牟东海; 武晋; 赵洪彬; 夏欢; 田丰; 孙东; 李长红; 张伟东
Original assignee: BAICHENG ZHONGYI PRECISION FORGING CO LTD
Current assignee: BAICHENG ZHONGYI PRECISION FORGING CO LTD
Priority date: 2021-07-08
Filing date: 2021-07-08
Publication date: 2022-06-07
Anticipated expiration: 2031-07-08

Abstract

The utility model provides a pair of handheld forging pliers, which comprises a handheld rod, a pull rod assembly, a jaw assembly and a pressing handle assembly, wherein the handheld rod is used for being held by a worker, the pull rod assembly is used for connecting the handheld rod, the jaw assembly and the pressing handle assembly, a forged object is clamped by the jaw assembly, and the pressing handle assembly drives a movable jaw to act. The hand-held forging tongs provided by the utility model have the advantages that the structure is simple, the operation is convenient, a small tool for forging pieces to be clamped can be stably clamped, the high-frequency clamping and loosening action can be adapted, during the operation, a worker holds the hand-held rod, the fixed jaw is arranged at one side or the bottom end of a forging object to be clamped, the pressing handle is pressed downwards by one hand to be attached to the hand-held rod, the forging object to be clamped is clamped and moved to the forging furnace, the pressing handle is released, the movable jaw is far away from the fixed jaw under the connecting action of the top spring, and the forging object is in a free state.

Description

Handheld forging pliers

Technical Field

The utility model belongs to the technical field of forging tools, and particularly relates to a handheld forging pliers.

Background

Forging, a commonly used forming method in machine manufacturing, is to apply pressure to a metal blank by a forging machine to cause plastic deformation, and has certain mechanical properties, shape and size. The free forging in forging is a processing method for obtaining a forged piece with required shape, size and certain mechanical performance by freely deforming metal in all directions between an upper anvil surface and a lower anvil surface by utilizing impact force or pressure without any limitation, so that a tool for stably clamping a small-sized forged piece to be forged needs to be developed in the field of manufacturing.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the background art, the utility model provides a pair of handheld forging tongs.

The technical scheme of the utility model is as follows:

a pair of handheld forging tongs comprises a handheld rod, a pull rod assembly, a jaw assembly and a pressing handle assembly, wherein the interior of the handheld rod is hollow, and the upper end and the lower end of the handheld rod are respectively provided with a handheld rod upper screw opening and a handheld rod lower screw opening;

the pull rod assembly comprises a long pull rod, the long pull rod is arranged in the handheld rod, the upper end of the long pull rod is provided with an upper long pull rod screw hole, a top spring is sleeved on the long pull rod, the lower end of the top spring is clamped and connected to the inner side of the upper end of the handheld rod, a first limiting nut is connected to the upper long pull rod screw hole in a threaded mode and used for limiting the top spring below the first limiting nut to prevent the top spring from separating from the long pull rod;

the jaw assembly comprises a first connecting nut, the first connecting nut is in threaded connection with a lower screw port of the handheld rod, connecting sheets are welded to two sides of the lower end of the first connecting nut respectively, limiting pieces are welded to the lower portions of the inner sides of the two connecting sheets respectively, the limiting pieces are connected through two limiting hinge shafts, a fixed jaw and a movable jaw are mounted on the two limiting hinge shafts respectively, a connecting end of the fixed jaw is welded to the limiting sheet on one side of the fixed jaw, a connecting end of the movable jaw is hinged to the bottom end of the long pull rod, and the movable jaw and the fixed jaw are closed or opened by lifting or falling of the long pull rod;

the pressure is including second coupling nut, second coupling nut and handheld pole upper end screw thread connection, the clamp plate has been welded respectively to second coupling nut upper end both sides, both sides be provided with the pressure handle that is the L type between the clamp plate, the one end of pressing the handle is passed through second stop nut and is connected with long pull rod upper end screw, the corner department of pressing the handle is installed between the clamp plate of both sides through connecting the hinge, the directional direction of keeping silent the subassembly setting of the other end of pressing the handle.

Preferably, the fixed jaw comprises a connecting end and a clamping end, the movable jaw comprises a connecting end and a clamping end, the clamping ends of the movable jaw and the fixed jaw are identical in structure and are symmetrically arranged, and when the movable jaw and the fixed jaw are in a closed state, an elliptic cylindrical gap which penetrates through the movable jaw and the fixed jaw is formed between the movable jaw and the fixed jaw.

Preferably, the two connecting pieces are identical in structure and are symmetrically arranged.

Preferably, the two limiting pieces are identical in structure and are symmetrically arranged.

Preferably, the two pressing plates are identical in structure and are symmetrically arranged.

The utility model has the following beneficial effects:

(1) the handheld forging pliers are simple in structure and convenient to operate, can stably clamp a small tool to be forged, and can adapt to high-frequency clamping and loosening actions.

(2) The handheld forging tongs provided by the utility model have the advantages that the stable opening angle between the fixed tong mouth and the movable tong mouth is limited by the elastic deformation of the top spring, when a forged object needs to be clamped, the opening angle does not need to be adjusted, when a slightly larger opening angle is needed, the top spring is compressed by only lifting the other end of the pressing handle upwards, the top spring has a downward force on the long pull rod, meanwhile, the fixed tong mouth is opened towards the outside under the downward force of the long pull rod, the opening angle is adjusted to be large, and the handheld forging tongs are very simple and convenient.

(3) The handheld forging tongs provided by the utility model are provided with the two jaws which are respectively the fixed jaw and the movable jaw, and the fixed jaw is immobile, so that when a forged object is clamped, the forged object is very convenient to clamp after the forged object is fixed.

(4) When the handheld forging tongs provided by the utility model are required to clamp a forged object, only the pressing handle at the other end needs to be pressed downwards, the long pull rod is pulled, namely the movable jaw and the fixed jaw are combined, and the object to be forged can be clamped stably and strongly by utilizing the specific shape formed by the clamping ends of the movable jaw and the fixed jaw.

Drawings

Other objects and results of the present invention will become more apparent and more readily appreciated as the same becomes better understood by reference to the following description taken in conjunction with the accompanying drawings. In the drawings:

fig. 1 is a schematic view of the overall structure of the present invention.

FIG. 2 is a schematic view of the hand-held lever of the present invention.

FIG. 3 is a schematic view of the pull rod assembly and jaw assembly of the present invention.

Fig. 4 is an enlarged view of a point a in fig. 1.

Fig. 5 is a schematic view of the jaw assembly of fig. 1 with the first coupling nut and one side of the coupling tab hidden.

Wherein the reference numerals are: the device comprises a handheld rod 1, a pull rod assembly 2, a jaw assembly 3, a pressing handle assembly 4, a handheld rod upper spiral port 11, a handheld rod lower spiral port 12, a long pull rod 21, a long pull rod upper spiral port 211, a top spring 22, a first limiting nut 23, a first connecting nut 31, a connecting sheet 32, a limiting sheet 33, a limiting hinge shaft 34, a fixed jaw 35, a movable jaw 36, a second connecting nut 41, a pressing plate 42, a pressing handle 43, a second limiting nut 44 and a connecting hinge shaft 45.

Detailed Description

In order to make the technical solutions and advantages thereof better understood by those skilled in the art, the present application is described in detail below with reference to the accompanying drawings, but the present application is not limited to the scope of the present invention.

In the description of the present application, it should be noted that the terms "in", "under", and the like indicate the orientation or positional relationship: the particular arrangements or components shown in the drawings, or the orientations or positional relationships conventionally used in the manufacture of the applications, are for convenience only and to simplify the description, and are not intended to indicate or imply that the referenced devices or components must be in a particular orientation, constructed and operated in a particular orientation, and are not to be construed as limiting the application. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; they may be mechanically coupled, directly coupled, indirectly coupled through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Referring to fig. 1 and 2: a hand-held forging pliers comprises a hand-held rod 1, a pull rod assembly 2, a jaw assembly 3 and a pressing handle assembly 4.

Referring to FIG. 2: the interior of the handheld rod 1 is hollow, and the upper end and the lower end of the handheld rod 1 are respectively provided with a handheld rod upper screw opening 11 and a handheld rod lower screw opening 12.

Referring to FIG. 3: the pull rod assembly 2 comprises a long pull rod 21, the long pull rod 21 is arranged inside the handheld rod 1, an upper spiral port 211 of the long pull rod 21 is formed in the upper end of the long pull rod 21, a top spring 22 is sleeved on the long pull rod 21, the lower end of the top spring 22 is clamped on the inner side of the upper end of the handheld rod 1, a first limiting nut 23 is connected to the upper spiral port 211 of the long pull rod through threads, and the first limiting nut 23 is used for limiting the top spring 22 below to prevent the top spring from separating from the long pull rod 21.

Referring to fig. 3 and 5: the jaw assembly 3 comprises a first connecting nut 31, the first connecting nut 31 is in threaded connection with the lower screw port 12 of the handheld rod, connecting pieces 32 and two connecting pieces 32 are welded to two sides of the lower end of the first connecting nut 31 respectively, limiting pieces 33 and two limiting pieces 33 are welded to the lower portion of the inner side of each connecting piece 32 respectively, the limiting pieces 33 are in the same structure and are symmetrically arranged, the limiting pieces 33 are connected through two limiting hinge shafts 34 and are connected with each other through two limiting hinge shafts 34, a fixed jaw 35 and a movable jaw 36 are installed on each limiting hinge shaft 34 respectively, a connecting end of the fixed jaw 35 is welded to the limiting piece 33 on one side of each limiting piece, a connecting end of the movable jaw 36 is hinged to the bottom end of the long pull rod 21, and the movable jaw 36 and the fixed jaw 35 are closed or opened through lifting or dropping of the long pull rod 21.

Referring to FIG. 4: the pressure is including second coupling nut 41 to subassembly 4,

second coupling nut

41 and 11 threaded connection of handheld pole upper end spiral port, clamp plate 42, two have been welded respectively to second coupling nut 41 upper end both sides the clamp plate 42 the same and symmetry of structure sets up, both sides be provided with the pressure that is the L type between the clamp plate 42 and be 43, the one end of pressing 43 is passed through second stop nut 44 and is connected with long pull rod upper end spiral port 11, press and install between the clamp plate 42 of both sides through connecting hinge 45 the corner of 43, press the directional direction of keeping silent subassembly 3 setting of the other end of 43.

Referring to FIG. 5: the fixed jaw 35 comprises a connecting end and a clamping end, the movable jaw 36 comprises a connecting end and a clamping end, the clamping ends of the movable jaw 36 and the fixed jaw 35 are identical in structure and are symmetrically arranged, and when the movable jaw 36 and the fixed jaw 35 are in a closed state, an elliptic cylindrical gap which penetrates through the movable jaw 36 and the fixed jaw 35 from top to bottom is formed between the movable jaw 36 and the fixed jaw 35.

The working principle of the utility model is as follows:

the worker holds the hand-held rod 1, places the fixed jaw 35 at one side or the bottom end of the forging to be clamped, presses the pressing handle 43 downwards with one hand to make the fixed jaw attach to the hand-held rod 1, clamps the forging to be clamped and moves to the forging furnace, releases the pressing handle 43, and at the moment, the movable jaw 36 is far away from the fixed jaw 35 under the effect of the connecting spring 22, and the forging is in a free state.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and shall cover the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A kind of hand-held forging pliers, characterized by: the internal part of the handheld rod is hollow, and the upper end and the lower end of the handheld rod are respectively provided with an upper handheld rod screw hole and a lower handheld rod screw hole;

2. A hand held forging pliers according to claim 1 wherein: the fixed jaw comprises a connecting end and a clamping end, the movable jaw comprises a connecting end and a clamping end, the clamping ends of the movable jaw and the fixed jaw are identical in structure and are symmetrically arranged, and when the movable jaw and the fixed jaw are in a closed state, an elliptic cylindrical gap which penetrates through the movable jaw and the fixed jaw from top to bottom is formed between the movable jaw and the fixed jaw.

3. A hand held forging pliers according to claim 1 wherein: the two connecting pieces are identical in structure and are symmetrically arranged.

4. A hand held forging pliers according to claim 1 wherein: the two limiting pieces are identical in structure and are symmetrically arranged.

5. A hand held forging pliers according to claim 1 wherein: the two pressure plates are identical in structure and are symmetrically arranged.