CN211867207U - Quick flat-nose pliers - Google Patents

Abstract

The utility model discloses a quick flat-nose pliers, include: bottom plate, fixed pincers, activity pincers, crank and connecting rod, the adjustment tank has been seted up at the middle part of bottom plate and has been the frame structure, and fixed pincers are vertical to be fixed in the top left side of bottom plate, and the vertical fixed block that is fixed with of top surface of bottom plate, the connecting hole has been seted up to the lateral wall lower extreme of activity pincers, installs the pivot in the connecting hole and rotates through pivot and fixed block to be connected, and activity pincers back-mounted has the connecting block, and the connecting block is provided with the recess on triangle-shaped. The utility model can clamp quickly, when the position of the movable jaw is adjusted according to the size of a workpiece, the crank is pulled down to clamp, and the crank is pulled up to unload; the clamping force is adjusted through the adjusting screw, so that the angle between the crank and the connecting rod is adjusted, and the required size is achieved; the lip of the movable jaw can rotate in a certain range on the jaw, and when the movable jaw cannot be perpendicular to the surface of a workpiece, the lip can be adapted to the surface of the workpiece to keep perpendicular.

Description

Quick flat-nose pliers

Technical Field

The utility model relates to an anchor clamps technical field, more specifically are a quick flat-nose pliers.

Background

A flat-nose pliers, also known as a machine vice, is a universal fixture, is usually used for mounting small-sized workpieces, is a random accessory of a milling machine and a drilling machine, is fixed on a machine tool workbench and is used for clamping the workpieces for cutting.

At present, the existing flat tongs have the following problems: (1) the clamping speed is low, the operation is not convenient enough, and the size of the clamping opening is not convenient to adjust; (2) when the movable jaw and the fixed jaw clamp a workpiece, the contact surface of the movable jaw inclined at a certain angle and the workpiece is reduced, and the clamping is not stable enough. For this reason, a new scheme needs to be designed to give improvements.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a quick flat-nose pliers has solved the problem that proposes in the background art, satisfies the in-service use demand.

In order to achieve the above object, the utility model provides a following technical scheme: a rapid flat-nose pliers comprising: bottom plate, fixed pincers, activity pincers, crank and connecting rod, the adjustment tank has been seted up at the middle part of bottom plate and has been the frame structure, fixed pincers are vertical to be fixed in the top left side of bottom plate, the vertical fixed block that is fixed with of top surface of bottom plate, the connecting hole has been seted up to the lateral wall lower extreme of activity pincers, install the pivot in the connecting hole and rotate through pivot and fixed block and be connected, the connecting block is installed at activity pincers back, the connecting block is provided with the recess on being triangle-shaped structure and the lateral wall, articulate end rotates and connects in the recess, the connecting rod upper end is rotated with articulate middle part and is connected, and the lower extreme of connecting rod extends.

As an optimized embodiment of the utility model, the screw has been seted up on the right side wall of bottom plate, threaded connection has the screw on the screw, the end of screw extends to in the adjustment tank and is connected with the lower extreme contact of connecting rod.

As a preferred embodiment of the utility model, the inside vertical mounting of adjustment tank has solid fixed ring, gu be fixed with the spring on the fixed ring, the upper end of spring extend to the connecting block below and with connecting block fixed connection.

As an optimal implementation mode of the utility model, the left side wall of the movable pliers is provided with an embedding groove, and the embedding in the embedding groove is connected with the regulating block.

As a preferred embodiment of the present invention, a planar four-bar mechanism is formed between the crank, the connecting rod and the bottom plate.

Compared with the prior art, the beneficial effects of the utility model are as follows:

(1) and (3) quick clamping, when the position of the movable jaw is adjusted according to the size of a workpiece, the crank is pulled down to clamp, and the crank is pulled up to unload.

(2) The clamping force is adjusted through the adjusting screw, and then the angle between the crank and the connecting rod is adjusted, and the required size is achieved.

(3) The lip of the movable jaw can rotate in a certain range on the jaw, and when the movable jaw cannot be perpendicular to the surface of a workpiece, the lip can be adapted to the surface of the workpiece to keep perpendicular.

Drawings

FIG. 1 is a structural diagram of the rapid flat-nose pliers of the present invention;

fig. 2 is a sectional view of the rapid flat-nose pliers of the present invention.

In the figure, a bottom plate 1; a fixed clamp 2; a movable clamp 3; a connecting block 4; an adjusting block 5; a connecting hole 6; a spring 7; a connecting rod 8; a screw 9; a crank 10; a fixed block 11; a fixed ring 12; an adjustment groove 13; a screw hole 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a rapid flat-nose pliers comprising: a bottom plate 1, a fixed clamp 2, a movable clamp 3, a crank 10 and a connecting rod 8, wherein an adjusting groove 13 is formed in the middle of the bottom plate 1 and is of a frame structure, the fixed clamp 2 is vertically fixed on the left side of the top of the bottom plate 1, a fixed block 11 is vertically fixed on the top surface of the bottom plate 1, a connecting hole 6 is formed in the lower end of the side wall of the movable clamp 3, a rotating shaft is installed in the connecting hole 6 and is rotatably connected with the fixed block 11 through the rotating shaft, the movable clamp 3 can rotate to a certain degree by taking the connecting hole 6 as a center, a connecting block 4 is installed on the back of the movable clamp 3, the connecting block 4 is of a triangular structure and is provided with a groove on the side wall, the tail end of the crank 10 is rotatably connected in the groove, the upper end of the connecting rod 8 is rotatably connected with the middle of the crank 10, the lower end of the connecting rod, the adjusting block 5 is close to the fixed clamp 2 to clamp the workpiece.

Further improved, as shown in fig. 2: screw 14 has been seted up on the right side wall of bottom plate 1, threaded connection has screw 9 on screw 14, and the end of screw 9 extends to in the adjustment tank 13 and is connected with the lower extreme contact of connecting rod 8, and screw 9 receives threaded influence to carry out horizontal migration after rotating screw 9 to promote connecting rod 8, adjust connecting rod 8's support angle, thereby drive crank 10 and connecting block 4 and come to adjust the angle of activity pincers 3.

In a further improvement, as shown in fig. 1-2: fixed ring 12 is fixed to the vertical installation in inside of adjustment tank 13, is fixed with spring 7 on fixed ring 12, spring 7's upper end extend to connecting block 4 below and with connecting block 4 fixed connection, spring 7 stretches connecting block 4, when needs expand the activity pincers 3 of centre gripping in-service, with the upwards pulling of crank 10 to drive connecting block 4, spring 7 gives connecting block 4 pulling force, is convenient for reset activity pincers 3.

In a further improvement, as shown in fig. 1-2: set up on the left side wall of activity pincers 3 and inlay the groove, inlay the inslot and inlay and be connected with regulating block 5, regulating block 5 can carry out the rotation of certain angle at inlaying the inslot, when to the work piece centre gripping, keeps 5 outer walls of regulating block and workpiece surface to laminate all the time.

In particular, a planar four-bar mechanism is formed between the movable jaw 3, the crank 10, the connecting rod 8 and the base plate 1, enabling the locking of the movable jaw 3.

The utility model discloses when using, pull crank 10 when crank 10 and connecting rod 8 are collinear (four bar linkage is in the dead point position promptly), movable pincers 3 use connecting hole 6 to rotate as the center, thereby the upper end of movable pincers 3 is close to fixed pincers 2 and carries out the centre gripping, during the rotating screw 9, promotes connecting rod 8 through screw 9 to adjust the angle that opens of 3 mouths of movable pincers, spring 7 is tensile to movable pincers 3, and movable pincers 3 reset in time.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. A rapid flat-nose pliers comprising: bottom plate (1), fixed pincers (2), activity pincers (3), crank (10) and connecting rod (8), its characterized in that: adjusting groove (13) have been seted up at the middle part of bottom plate (1) and have been the frame structure, fixed pincers (2) are vertical to be fixed in the top left side of bottom plate (1), the vertical fixed block (11) that is fixed with of top surface of bottom plate (1), connecting hole (6) have been seted up to the lateral wall lower extreme of activity pincers (3), install the pivot in connecting hole (6) and rotate through pivot and fixed block (11) and be connected, connecting block (4) are installed at activity pincers (3) back, connecting block (4) are provided with the recess on triangle-shaped structure and the lateral wall, the end of crank (10) is rotated and is connected in the recess, connecting rod (8) upper end is connected with the rotation of the middle part of crank (10), and the lower extreme of connecting rod (8) extends to in adjusting groove (13).

2. The rapid flat-nose pliers according to claim 1, wherein: screw hole (14) have been seted up on the right side wall of bottom plate (1), threaded connection has screw (9) on screw hole (14), the end of screw (9) extends to in adjustment tank (13) and is connected with the lower extreme contact of connecting rod (8).

3. The rapid flat-nose pliers according to claim 1, wherein: the inside vertical installation of adjustment tank (13) has solid fixed ring (12), be fixed with spring (7) on solid fixed ring (12), the upper end of spring (7) extend to connecting block (4) below and with connecting block (4) fixed connection.

4. The rapid flat-nose pliers according to claim 1, wherein: the left side wall of the movable pliers (3) is provided with an embedding groove, and a regulating block (5) is embedded and connected in the embedding groove.

5. The rapid flat-nose pliers according to claim 4, wherein: a plane four-bar mechanism is formed among the crank (10), the connecting rod (8) and the bottom plate (1).

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