CN220161319U - Perforating tool - Google Patents

Abstract

The utility model relates to the technical field of tapping cutters, in particular to a tapping cutter which comprises a cutter body and a cutter handle, wherein the bottom end of the cutter body is fixedly connected with the cutter handle, the top of the cutter body is slidably connected with a connecting ring, and the outer wall of the connecting ring is fixedly connected with a plurality of limiting blocks. Through when the trompil cutter appears damaging, the user rotates the circle piece through external instrument, the circle piece drives the round bar and rotates, the round bar drives the screw rod and rotates, the screw rod drives the screw thread piece and moves downwards, the screw thread piece slides downwards along the outer wall of slide bar, the connecting rod that the screw thread piece drove both sides connecting rod rotation both sides drives the fixture block of both sides inwards move, make fixture block and go-between release the laminating, then release the connection with the tool bit from the blade, then insert the blade with new tool bit through the go-between, insert the keyway that the stopper corresponds the blade simultaneously, then reverse rotation circle piece, thereby fix the tool bit, realize changing the tool bit alone.

Description

Perforating tool

Technical Field

The utility model relates to the technical field of tapping cutters, in particular to a tapping cutter.

Background

The tool is a tool for cutting machining in mechanical manufacturing, and the tapping tool is one of machining tapping methods, and is used for machining a hole in a solid workpiece, namely machining the hole from the solid workpiece.

For example, the publication number CN215544992U, an opening cutter, the document adopts a rotary cutting method, when the document is rotated at high speed, the inner cutting edge surface rubs with plastic to generate heat (according to the bonding property of plastic materials), the cutting materials are gathered to the inner side of the cutting edge and bonded on unnecessary slices, so that the purposes of no scraps and no dust are achieved. The utility model has simple structure and convenient operation, effectively eliminates scraps generated in the cutting and drilling process in the tapping operation, reduces fire risk and eliminates potential safety hazard. However, in the above-mentioned file trompil cutter is in the use, because tool bit and blade structure as an organic whole for can't dismantle between tool bit and the blade, make the trompil cutter area carry out the course of working to the work piece in, tool bit and the continuous friction of work piece, thereby lead to the tool bit of trompil cutter to appear grinding, cause the condition that the tool bit appears splitting easily in the time easily, make the tool bit unable continue to use, need change whole when changing the trompil cutter in above-mentioned file, thereby lead to blade and handle of a knife can't use, thereby the cost is increased.

Disclosure of Invention

The utility model aims to solve the problem that the whole tapping cutter needs to be replaced when the existing tapping cutter bit is worn.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a trompil cutter, includes blade and handle of a knife, the bottom and the handle of a knife of blade are fixed to link to each other, the top of blade is provided with the tool bit, the top of blade links to each other with the go-between is sliding, the outer wall of go-between links to each other with a plurality of stopper is fixed, the outer wall of stopper links to each other with the keyway of blade is sliding, the bottom and the round bar of handle of a knife rotate and link to each other, the outer wall top and the blade of round bar rotate and link to each other, the top of round bar is equipped with fixed knot constructs.

Preferably, the fixed knot constructs including the screw rod, the bottom and the round bar of screw rod are fixed to be linked to each other, the outer wall and the screw thread piece screw thread of screw rod link to each other, the bottom both sides of screw thread piece slide with the slide bar of both sides respectively and link to each other, the top both sides of screw thread piece rotate with the connecting rod of both sides respectively through the round pin axle and link to each other, the outside of connecting rod rotates with the fixture block through the round pin axle and links to each other.

Preferably, the outer sides of the outer walls of the clamping blocks are attached to the grooves of the connecting rings.

Preferably, the middle part of the outer wall of the clamping block is connected with the cutter body in a sliding way.

Preferably, the bottom of the sliding rod is fixedly connected with the cutter body, and the top of the screw rod is rotationally connected with the cutter body.

Preferably, the bottom of the round rod is fixedly connected with a round block, and a groove is formed in the bottom of the round block.

The utility model provides an opening cutter, which has the beneficial effects that: through when the trompil cutter appears damaging, the user rotates the circle piece through external instrument, the circle piece drives the round bar and rotates, the round bar drives the screw rod and rotates, the screw rod drives the screw thread piece and moves downwards, the screw thread piece slides downwards along the outer wall of slide bar, the connecting rod that the screw thread piece drove both sides connecting rod rotation both sides drives the fixture block of both sides inwards move, make fixture block and go-between release the laminating, then release the connection with the tool bit from the blade, then insert the blade with new tool bit through the go-between, insert the keyway that the stopper corresponds the blade simultaneously, then reverse rotation circle piece, thereby fix the tool bit, realize changing the tool bit alone, blade and handle of a knife continue to use, the cost is reduced.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of the structure of FIG. 1A;

FIG. 3 is a schematic diagram of a front view of the present utility model;

fig. 4 is a schematic diagram of the structure of fig. 3B.

In the figure: 1. blade, 2, handle of a knife, 3, round bar, 4, fixed knot constructs, 4a1, screw rod, 4a2, fixture block, 4a3, connecting rod, 4a4, thread block, 4a5, slide bar, 4b1, spring, 5, recess, 6, round block, 7, go-between, 8, tool bit, 9, stopper.

Detailed Description

The utility model is further described below with reference to the accompanying drawings:

example 1:

referring to fig. 1-4: in this embodiment, a trompil cutter, including blade 1 and handle of a knife 2, the bottom of blade 1 links to each other with handle of a knife 2 is fixed, and the top of blade 1 is provided with tool bit 8, and the top of blade 1 links to each other with go-between 7 slides, and go-between 7 outer wall and a plurality of stopper 9 are fixed continuous, and the outer wall of stopper 9 links to each other with the keyway of blade 1 slides, and the bottom of handle of a knife 2 links to each other with round bar 3 rotation, and the outer wall top of round bar 3 links to each other with blade 1 rotation, and the top of round bar 3 is equipped with fixed knot constructs 4.

The fixed knot constructs 4 and includes screw rod 4a1, the bottom and the round bar 3 of screw rod 4a1 are fixed link to each other, the outer wall and the screw thread piece 4a4 screw thread of screw rod 4a1 link to each other, round bar 3 drives screw rod 4a1 and rotates, screw rod 4a1 drives screw thread piece 4a4 and removes, screw thread piece 4a4 slides along the outer wall of slide bar 4a5, screw thread piece 4a4 drives connecting rod 4a3 simultaneously and rotates, connecting rod 4a3 on both sides drives fixture block 4a2 slip of both sides, the bottom both sides of screw thread piece 4a4 are respectively with slide bar 4a5 slip of both sides link to each other, the top both sides of screw thread piece 4a4 are rotated with connecting rod 4a3 of both sides through the round pin axle respectively and are linked to each other, the outside of connecting rod 4a3 is rotated through the round pin axle and is linked to each other with fixture block 4a2, the outer wall outside of fixture block 4a2 all is laminated with the recess of go-between 7, the outer wall middle part and the blade 1 slip link to each other, the bottom and the blade 1 of blade 4a5 is fixed link to each other, the shape of tool bit 8 can refer to the license number CN215544992U, the top of screw rod 4a1 rotates with blade 1 and links to each other 3, the bottom of round bar 6 is driven by the recess 6 with the round bar 6 through the fixed groove of round bar 6, the bottom that has the outside and the tool 6 is processed.

Working principle:

when the tapping tool is damaged, a user rotates the round block 6 through an external tool, the round block 6 drives the round rod 3 to rotate, the round rod 3 drives the screw rod 4a1 to rotate, the screw rod 4a1 drives the threaded block 4a4 to move downwards, the threaded block 4a4 slides downwards along the outer wall of the sliding rod 4a5, the threaded block 4a4 drives the connecting rods 4a3 on two sides to rotate, the connecting rods 4a3 on two sides drive the clamping blocks 4a3 on two sides to move inwards, the clamping blocks 4a3 are released from the connecting ring 7, then the cutter head 8 is disconnected from the cutter body 1, then a new cutter head 8 is inserted into the cutter body through the connecting ring 7, meanwhile, the limiting block 9 is inserted into a key groove corresponding to the cutter body, and then the round block 6 is reversely rotated, so that the cutter head is fixed, the cutter body and the cutter handle are independently replaced, and the cost is reduced.

Example 2:

referring to fig. 1-4: in this embodiment, the hole cutter, wherein the fixing structure 4 may further include a spring 4b1, two ends of the spring 4b1 are fixedly connected with the threaded block 4a4 and the cutter body 1 respectively, the elastic force of the spring 4b1 may be selected according to the actual use situation, the elastic force of the spring is applied to the threaded block 4a4 all the time, and the gap between the threaded block 4a4 and the screw 4a1 is reduced by the elastic force of the spring 4b1, so that the stability of the cutter head 8 is improved.

While the utility model has been shown and described with reference to a preferred embodiment, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the scope of the utility model.

Claims (6)

1. The utility model provides an trompil cutter, includes blade (1) and handle of a knife (2), the bottom and the handle of a knife (2) of blade (1) are fixed to be linked to each other, the top of blade (1) is provided with tool bit (8), its characterized in that: the utility model discloses a cutter body, including blade (1), connecting ring (7), handle of a knife (2), handle of a knife (3), connecting ring (7) slide on top of blade (1), the outer wall of connecting ring (7) links to each other with fixed linking to each other of a plurality of stopper (9), the outer wall of stopper (9) slide with the keyway of blade (1) and link to each other, the bottom of handle of a knife (2) rotates with round bar (3) and links to each other, the outer wall top of round bar (3) rotates with blade (1) and links to each other, the top of round bar (3) is equipped with fixed knot constructs (4).

2. An opening tool according to claim 1, wherein: the fixed knot constructs (4) including screw rod (4 a 1), the bottom and the round bar (3) of screw rod (4 a 1) are fixed to be linked to each other, the outer wall and the screw thread piece (4 a 4) screw thread of screw rod (4 a 1), the bottom both sides of screw thread piece (4 a 4) are respectively with slide bar (4 a 5) of both sides slip continuous, the top both sides of screw thread piece (4 a 4) are rotated with connecting rod (4 a 3) of both sides respectively through the round pin axle and are linked to each other, the outside of connecting rod (4 a 3) is rotated with fixture block (4 a 2) through the round pin axle and is linked to each other.

3. An opening tool according to claim 2, wherein: the outer sides of the outer walls of the clamping blocks (4 a 2) are respectively attached to the grooves of the connecting rings (7).

4. An opening tool according to claim 2, wherein: the middle part of the outer wall of the clamping block (4 a 2) is connected with the cutter body (1) in a sliding way.

5. An opening tool according to claim 2, wherein: the bottom end of the sliding rod (4 a 5) is fixedly connected with the cutter body (1), and the top end of the screw rod (4 a 1) is rotationally connected with the cutter body (1).

6. An opening tool according to claim 1, wherein: the bottom of the round rod (3) is fixedly connected with a round block (6), and a groove (5) is formed in the bottom of the round block (6).