CN212170706U

CN212170706U - Accurate positioning perforating pliers

Info

Publication number: CN212170706U
Application number: CN202020755868.3U
Authority: CN
Inventors: 韩建军
Original assignee: Yuyao City Sanjian Tool Co ltd
Current assignee: Yuyao City Sanjian Tool Co ltd
Priority date: 2020-05-09
Filing date: 2020-05-09
Publication date: 2020-12-18
Anticipated expiration: 2030-05-09

Abstract

The utility model provides a pair of accurate positioning punching pliers, which comprises two fixed sheets with consistent specifications; the fixed sheet is fixedly connected with an upper handle and movably connected with a lower handle; a punching assembly is movably connected between the two fixing pieces through a transverse pin; a positioning device is fixedly connected below the two fixing pieces; the positioning device comprises a U-shaped block, the upper half part of the U-shaped block is provided with a positioning hole, and the lower half part of the U-shaped block is provided with a first through hole; a rotary lower die is arranged in the U-shaped block; a plurality of second through holes are formed in the rotary lower die; one of the fixing pieces is provided with an adjusting knob. The utility model discloses an accurate positioning pincers of punching, simple structure, convenient to use, laborsaving can trade the needle fast, and it has positioner still to design for the needle of punching can be with the vertically angle towards the lower mould, the first through-hole design in second through-hole and the U type piece the latter half in the rotatory lower mould, makes the waste material under the blanking directly get rid of, thereby reduces not completely to punch and cut, the hole is by the production of bad appearance looks such as extrusion deformation all around.

Description

Accurate positioning perforating pliers

Technical Field

The utility model relates to a hand tool technical field, concretely relates to accurate positioning hole pincers.

Background

The perforating pliers are common hand tools in life and are commonly used for perforating daily necessities such as leather products and the like.

The working principle of the existing adjustable punching pliers (punching needles with 6 apertures) in the market is that under the action of a handle, the punching needle is pressed on a copper block below the punching pliers at a certain angle (non-vertical angle) to achieve the punching and shearing effects. The punching in the mode is not only laborious, but also has the bad phenomena of incomplete punching shear (namely, the punched material is partially adhered to the edge of the hole and is not completely peeled off), deformation of the periphery of the hole by extrusion (namely, the periphery of the hole is extruded due to non-vertical punching angle), and the like, thereby not only influencing the quality of the punched article, but also influencing the user experience, and particularly bringing huge loss to users easily when punching high-grade belts and watchbands.

In order to solve the above problems, there is a need for a pair of precision positioning hole-punching pliers.

Disclosure of Invention

In order to solve the problem, the utility model provides an accurate positioning pincers of punching.

The technical scheme of the utility model is that: an accurate positioning perforating clamp comprises two fixed sheets with consistent specifications; the fixed sheet is fixedly connected with an upper handle, and is movably connected with a lower handle; the two fixing pieces are movably connected with a punching assembly through a transverse pin; a positioning device is fixedly connected below the two fixing pieces; the positioning device comprises a U-shaped block, the upper half part of the U-shaped block is provided with a positioning hole, and the lower half part of the U-shaped block is provided with a first through hole; the upper surface of the lower half part of the U-shaped block is movably connected with a rotary lower die; a plurality of second through holes are formed in the rotary lower die; one of the fixing plates is provided with an adjusting knob.

Furthermore, a first slotted hole is formed in the fixing sheet, and a second slotted hole is formed in the front part of the lower handle; the transverse pin penetrates through the first slotted hole, the second slotted hole and the punching assembly; the middle part of the lower handle is provided with a second small hole; and a first connecting piece is arranged in the first small hole and the second small hole.

Furthermore, one side of the U-shaped block is connected with the fixing plate through a second connecting piece, a third connecting piece and a fourth connecting piece.

Furthermore, the lower half part of the U-shaped block is provided with a fastening screw; and the rotary lower die is movably connected above the lower half part of the U-shaped block through a seventh connecting piece.

Furthermore, the punching assembly comprises two chucks with the same specification and a plurality of punching needles; the chuck is provided with a plurality of grooves, and the punching needle is arranged in the grooves.

Further, the diameter of the punching needle head is matched with that of the second through hole; the diameter of the tail end of the punching needle is matched with the positioning hole.

Furthermore, a tangent plane is arranged in the adjusting knob.

The utility model discloses an accurate positioning perforating clamp, simple structure, convenient to use, the design of punching subassembly, the user can change the needle according to the demand in a quick and flexible way; the positioning device is designed, so that the punching needle can punch towards the lower die at a vertical angle, and the generation of poor phenomena such as extrusion and deformation of the periphery of the hole is reduced; the second through hole in the rotatory lower mould and the first through hole design in the U type piece the latter half for the waste material under the blanking can directly be discharged, thereby has avoided still having the incomplete blanking condition of part adhesion by the edge in blanking material and hole, and makes to punch more laborsavingly.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a detailed schematic view of the present invention;

FIG. 3 is a schematic view of the structure of the lower handle;

FIG. 4 is an exploded view of the positioning device;

FIG. 5 is an exploded view of the structure of the perforating assembly;

FIG. 6 is a schematic view of the fixing sheet;

fig. 7 is a schematic structural diagram of the adjusting device.

In the figure, a fixing sheet-1, an upper handle-2, a lower handle-3, a transverse pin-4, a punching assembly-5, a positioning device-6 and an adjusting knob-7 are arranged; a first slotted hole-1.1, a first small hole-1.2, a first connecting piece-1.3, a second connecting piece-1.4, a third connecting piece-1.5 and a fourth connecting piece-1.6; a second slot-3.1, a second aperture-3.2; a chuck-5.1, a punching needle-5.2 and a groove-5.3; 6.1 parts of a U-shaped block, 6.2 parts of a positioning hole, 6.3 parts of a first through hole, 6.4 parts of a rotary lower die, 6.5 parts of a second through hole and 6.6 parts of a fastening screw; a seventh connecting piece 6.7; section-7.1.

Detailed Description

The following describes the punching pliers with accurate positioning according to the present invention in detail with reference to the accompanying drawings.

As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, a precise positioning punch pliers includes two fixing sheets 1 with the same specification; the fixed plate 1 is fixedly connected with an upper handle 2 and movably connected with a lower handle 3; a punching assembly 5 is movably connected between the two fixing pieces 1 through a transverse pin 4; a positioning device 6 is fixedly connected below the two fixing pieces 1; the positioning device 6 comprises a U-shaped block 6.1, the upper half part of the U-shaped block 6.1 is provided with a positioning hole 6.2, and the lower half part is provided with a first through hole 6.3; the upper surface of the lower half part of the U-shaped block 6.1 is movably connected with a rotary lower die 6.4; a plurality of second through holes 6.5 are arranged in the rotary lower die 6.4; one of the fixing pieces 1 is provided with an adjusting knob 7; a first slotted hole 1.1 is arranged in the fixed sheet 1, and a second slotted hole 3.1 is arranged at the front part of the lower handle 3; the transverse pin 4 passes through the first slotted hole 1.1, the second slotted hole 3.1 and the punching assembly 5; a first small hole 1.2 is arranged in the fixing piece 1, and a second small hole 3.2 is arranged in the middle of the lower handle 3; a first connecting piece 1.3 is arranged in the first small hole 1.2 and the second small hole 3.2; one side of the U-shaped block 6.1 is connected with the fixing plate 1 through a second connecting piece 1.4, a third connecting piece 1.5 and a fourth connecting piece 1.6; the lower half part of the U-shaped block 6.1 is provided with a fastening screw 6.6; the rotary lower die 6.4 is movably connected to the upper part of the lower half part of the U-shaped block 6.1 through a seventh connecting piece 6.7; the punching assembly 5 comprises two chucks 5.1 with the same specification and a plurality of punching needles 5.2; the chuck 5.1 is provided with a plurality of grooves 5.3, and the punching needle 5.2 is arranged in the grooves 5.3; the diameter of the head of the punching needle 5.2 is matched with that of the second through hole 6.5; the diameter of the tail end of the punching needle 5.2 is matched with that of the positioning hole 6.2; the adjusting knob 7 is provided with a cut surface 7.1.

In actual use, a user firstly rotates the adjusting knob 7 to enable a tangent plane 7.1 of the adjusting knob 7 to be superposed with the side surface of the front end of the lower handle 3, and at the moment, the perforating pliers are in a needle changing state; the user selects a punching needle 5.2 with a proper diameter according to actual requirements, and rotates the chuck 5.1 to enable the punching needle 5.2 to face the rotary lower die 6.4; then, the lower handle 3 drives the whole punching assembly 5 to move downwards, the head of the punching needle 5.2 firstly enters the positioning hole 6.2, the positioning is carried out at the moment, then the downward movement is carried out, the tail of the punching needle 5.2 moves downwards to the positioning hole 6.2, the accurate positioning is realized, then, a user rotates the rotary lower die 6.4, selects a second through hole 6.5 with the diameter consistent with that of the head of the punching needle 5.2, the head of the punching needle 5.2 completely and smoothly enters the second through hole 6.5, and the rotary lower die 6.4 is fixed by a fastening screw 6.6; a user rotates the adjusting knob 7 to enable the excircle of the adjusting knob 7 to be tangent to the side face of the front end of the lower handle 3, and the perforating pliers are in a state of waiting for perforating after the adjustment is finished; the article to be punched can be put into the U-shaped block 6.1 for punching.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiments, and although the present invention has been disclosed with the preferred embodiments, it is not limited to the present invention, and any skilled person in the art can make some modifications or equivalent embodiments without departing from the scope of the present invention, but all the technical matters of the present invention are within the scope of the present invention.

Claims

1. The utility model provides an accurate positioning hole pincers which characterized in that: comprises two fixed sheets (1) with the same specification; the fixing piece (1) is fixedly connected with an upper handle (2) and movably connected with a lower handle (3); a punching assembly (5) is movably connected between the two fixing pieces (1) through a transverse pin (4); a positioning device (6) is fixedly connected below the two fixing pieces (1); the positioning device (6) comprises a U-shaped block (6.1), the upper half part of the U-shaped block (6.1) is provided with a positioning hole (6.2), and the lower half part is provided with a first through hole (6.3); the upper surface of the lower half part of the U-shaped block (6.1) is movably connected with a rotary lower die (6.4); a plurality of second through holes (6.5) are arranged in the rotary lower die (6.4); one of the fixing pieces (1) is provided with an adjusting knob (7).

2. The precision positioning punch pliers of claim 1 wherein: a first slotted hole (1.1) is formed in the fixed sheet (1), and a second slotted hole (3.1) is formed in the front part of the lower handle (3); the transverse pin (4) passes through the first slotted hole (1.1), the second slotted hole (3.1) and the punching assembly (5); a first small hole (1.2) is formed in the fixing piece (1), and a second small hole (3.2) is formed in the middle of the lower handle (3); and a first connecting piece (1.3) is arranged in the first small hole (1.2) and the second small hole (3.2).

3. The precision positioning punch pliers of claim 1 wherein: one side of the U-shaped block (6.1) is connected with the fixing plate (1) through a second connecting piece (1.4), a third connecting piece (1.5) and a fourth connecting piece (1.6).

4. The precision positioning punch pliers of claim 3 wherein: the lower half part of the U-shaped block (6.1) is provided with a set screw (6.6); the rotary lower die (6.4) is movably connected above the lower half part of the U-shaped block (6.1) through a seventh connecting piece (6.7).

5. The precision positioning punch pliers of claim 1 wherein: the punching assembly (5) comprises two chucks (5.1) with the same specification and a plurality of punching needles (5.2); the clamping head (5.1) is provided with a plurality of grooves (5.3), and the punching needle (5.2) is arranged in the grooves (5.3).

6. The precision positioning punch pliers of claim 5 wherein: the diameter of the head of the punch needle (5.2) is matched with that of the second through hole (6.5); the diameter of the tail end of the punching needle (5.2) is matched with that of the positioning hole (6.2).

7. The precision positioning punch pliers of claim 1 wherein: the adjusting knob (7) is internally provided with a tangent plane (7.1).