CN108188468A

CN108188468A - A kind of manual casing knife

Info

Publication number: CN108188468A
Application number: CN201810062888.XA
Authority: CN
Inventors: 陈闯; 庄凤婷
Original assignee: Nanjing University of Aeronautics and Astronautics
Current assignee: Nanjing University of Aeronautics and Astronautics
Priority date: 2018-01-23
Filing date: 2018-01-23
Publication date: 2018-06-22

Abstract

The present invention provides a kind of manual casing knifes, belong to tube body cutting tool field, which carries separate clamps, easy to operate, reduces use condition, while protect cutter, increases service life.The present invention includes separate clamps part and cut portion, separate clamps part includes having clamping fixture table inside separate clamps, there is V-block above clamping fixture table, pipe fitting to be cut is placed on V-block, each side there are one the jaws of activity for clamping fixture table, it is connect by nipper shaft with clamping fixture table, there are fixture handles in separate clamps side, and rotary clamp handle drives screw movement to make two jaws while swing to press to pipe fitting to be cut；Cut portion includes four arrangement roller groups in the arc-shaped and places pipe fitting to be cut, cut handle control cutter, separate clamps part is matched with cut portion by deep groove ball bearing, deep groove ball bearing outer ring is fixedly connected with separate clamps, cylinder is placed in deep groove ball bearing inner ring, and cylinder is fixedly connected with cut portion shell.

Description

A kind of manual casing knife

Technical field

The invention belongs to tube body cutting tool field more particularly to a kind of manual casing knifes.

Background technology

For manual casing knife since cutting mode is safe and simple, cutting effect is relatively preferable, relatively low to use condition requirement, It is used widely.Current existing casing knife, it is general to place pipe fitting to be cut using roller group in the arc-shaped is arranged, then By rotary screw rod, using the cutter of screw front end by pipe fitting clamping.After clamping, pipe fitting is held on the other hand, rotates Pipe Cutting on the other hand Device makes cutter be relatively rotated around pipe fitting, circumferentially cutting so as to complete.But the problem is that, general pipe fitting outer wall all relatively light It is sliding, it is difficult to hold and make pipe fitting not as casing knife rotates together only with human hand along with the pipe fitting having is thinner, so needing another Outer auxiliary clamp could be completed to cut, and in the case of no auxiliary clamp, the cutting to pipe fitting can not be completed, this is undoubtedly Limit the use of casing knife.And only positioning is realized with cutter, cutter stress is excessive to easily cause casing knife damage, shadow Ring service life.

Invention content

The present invention provides a kind of manual casing knife, which carries separate clamps, easy to operate, reduces and uses Condition, while cutter is protected, increase service life.

In order to achieve the above object, the present invention uses following technical scheme：

A kind of manual casing knife, including separate clamps part and cut portion, separate clamps part includes having inside separate clamps 6 There are V-block 9 in clamping fixture table 10,10 top of clamping fixture table, and pipe fitting 11 to be cut is placed on V-block 9, and clamping fixture table 10 each side has one The jaw 7 of a activity, is connect by nipper shaft 8 with clamping fixture table, and two jaws are mutually in 90 °, and there are fixture handles in 6 side of separate clamps 12, fixture handles 12 can move in handle through hole, and rotary clamp handle 12 drives the movement of screw 18 to make two jaws 7 simultaneously Swing presses to pipe fitting 11 to be cut；Cut portion includes four arrangement roller groups 20 in the arc-shaped and places pipe fitting 11 to be cut, It cuts handle 14 and controls cutter 16, separate clamps part is matched with cut portion by deep groove ball bearing 23, deep groove ball bearing Outer ring 21 is fixedly connected with separate clamps, and cylinder 19 is placed in deep groove ball bearing inner ring 22, and cylinder 19 is solid with cut portion shell 17 Fixed connection.

6 outer profile of separate clamps is cuboid in component described above, and using duralumin, hard alumin ium alloy material, surface has carried out anode Oxidation processes；6 housing of separate clamps, one layer of rubber sleeve 24 for being covered with strip groove；V-block about 9 both sides be different angles two A V-groove；Clamping fixture table 10 is placed on the guide rail 13 of 6 bottom of separate clamps, and the guide rail handle 5 of 6 side of rotation separate clamps drives Screw movement makes clamping fixture table 10 axially move in separate clamps 6 along guide rail 13；Guide rail handle 5 can be in handle through hole It is mobile.

Beneficial effects of the present invention are：The present invention provides a kind of manual casing knife, the manual casing knife is with independent Fixture, not needing to auxiliary tool can also complete to cut, and compensating for traditional casing knife does not have auxiliary tool that can not complete cutting Defect, separate clamps material use duralumin, hard alumin ium alloy, both alleviate own wt, and it is sufficiently large hard in turn ensure that separate clamps have It spends, both sides are the V-groove of different angles above and below the V-block in separate clamps, can meet the pipe fitting to be cut of different-diameter Demand, and clamping fixture table is placed on guide rail and axially moves in separate clamps, can realize that smaller pipe fitting is consolidated to pipe range Fixed and cutting considerably increases the use scope of casing knife, is placed in cut portion four arrangements roller group in the arc-shaped Pipe fitting to be cut avoids pipe fitting from bearing excessive bending stress, and separate clamps fix pipe fitting to be cut, does not need to by cutter It is positioned to realize, cutter is avoided to damage, extends the service life of cutter.

Description of the drawings

Fig. 1 is appearance profile front view of the present invention.

Fig. 2 is structure diagram at section 1 of the present invention.

Fig. 3 is structure diagram at section 2 of the present invention.

Fig. 4 is structure diagram at section 3 of the present invention.

Fig. 5 is structure diagram right view at section 4 of the present invention.

Fig. 6 is structure diagram front view at section 3 of the present invention.

Wherein, 1,2,3,4 be different parts section, and 5 be guide rail handle, and 6 be separate clamps, and 7 be moving jaw, and 8 be pincers Mouth axis, 9 be V-block, and 10 be clamping fixture table, and 11 be pipe fitting to be cut, and 12 be fixture handles, and 13 be clamping fixture table guide rail, and 14 be cutting Handle, 15 be casing, and 16 be cutter, and 17 be cut portion shell, and 18 be screw, and 19 be cylinder, and 20 be roller group, and 21 be bearing Outer ring, 22 be bearing inner race, and 23 be deep groove ball bearing, and 24 be groove rubber sleeve.

Specific embodiment

Casing knife includes separate clamps and cut portion forms.6 outer profile of separate clamps is cuboid, in order to mitigate itself Weight, while ensure sufficiently large hardness, material uses duralumin, hard alumin ium alloy, and carries out anodized surface processing, improves hard Degree and wearability；The rubber sleeve 24 that one layer of separate clamps housing is covered with strip groove, can increase the friction on surface, using more It is laborsaving；Have a clamping fixture table 10 inside separate clamps, there is a V-block 9 on clamping fixture table, V-block about 9 both sides be the two of different angles A V-groove can select to place forward or backwards according to the size of 11 diameter of pipe fitting to be cut, and clamping fixture table 10 each side has one The jaw 7 of a activity, two jaws are mutually in 90 °, screw can be driven to move by rotating the fixture handles 12 of side, so as to make two Jaw 7 swings the pipe fitting to be cut 11 pressed on V-block 9 simultaneously, realizes that positioning clamps, clamping fixture table 10 is placed in separate clamps bottom Guide rail 13 on, screw can be driven to move by rotating the guide rail handle 5 of side, so as to which clamping fixture table 10 be made to exist along guide rail 13 It axially moves in separate clamps 6, the fixation and cutting of pipe fitting smaller to pipe range can be achieved in this way, considerably increase described cut The scope of application of pipe device, the handle 5 and 12 can be moved in handle through hole, can be realized no more than 6 bottom of separate clamps Face, therefore separate clamps can be placed in plane；Separate clamps part is matched with cut portion by deep groove ball bearing 23, deep Ditch ball bearing outer ring 21 is fixedly connected with separate clamps, and cylinder 19 is placed in deep groove ball bearing inner ring 22, cylinder 19 and cut portion Shell 17 is fixedly connected, by rolling bearing 23 so as to realize cut portion rotation and separate clamps do not turn；Cut portion Including the roller group 20 that four arrangements are in the arc-shaped, for placing pipe fitting 11 to be cut, avoid that pipe fitting is made to bear excessive bending Stress；Cutting handle 14 is used for cutter 16 of retreating；When wanting cutting pipes, first according to the diameter of pipe fitting 11 to be cut, choosing V-block 9 is selected to place forward or backwards；Pipe fitting 11 to be cut is positioned on V-block 9 again, rolling clamp handle 12 makes adjustable clamp Mouth 7 rotates, while press to pipe fitting 11 to be cut around axis 8, and being fixed for cutting pipes 11 is treated in formation, further according to portion to be cut Position and the position relationship of cutter 16, rotary rail handle 5 make clamping fixture table 10 be moved on guide rail 13, make position to be cut and cutter 16 coincide；Circumgyration incision handle 14 makes cutter 16 be against position to be cut, then holds separate clamps 6 on the other hand or by separate clamps On the table, another winding by hand cylinder center axis rotor 19 or cut portion handle 14 make cutter 16 circumferentially cut to 6 pressures Pipe fitting 11 to be cut then proceedes to 14 feed of circumgyration incision handle, and circumferentially rotatable cutting, repetitive operation is until complete to cut.

The above is only the preferred embodiment of the present invention, it should be pointed out that for those skilled in the art For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications should also regard For protection scope of the present invention.

Claims

1. a kind of manual casing knife, which is characterized in that including separate clamps part and cut portion, separate clamps part includes only There is clamping fixture table (10) inside vertical fixture (6), have V-block (9) above clamping fixture table (10), pipe fitting (11) to be cut is placed in V-block (9) On, clamping fixture table (10) each side there are one the jaw (7) of activity, is connect, two jaws by nipper shaft (8) with clamping fixture table Mutually in 90 °, there are fixture handles (12) in separate clamps (6) side, and rotary clamp handle (12), which drives screw (18) to move, makes two Jaw (7) at the same swing press to pipe fitting to be cut (11)；Cut portion includes four arrangement roller groups (20) in the arc-shaped and puts Pipe fitting to be cut (11) is put, cutting handle (14) controls cutter (16), and separate clamps part passes through deep-groove ball axis with cut portion It holds (23) to match, deep groove ball bearing outer ring (21) are fixedly connected with separate clamps, and cylinder (19) is placed in deep groove ball bearing inner ring (22), cylinder (19) is fixedly connected with cut portion shell (17).

2. manual casing knife according to claim 1, which is characterized in that separate clamps (6) outer profile is cuboid, is used Duralumin, hard alumin ium alloy material, surface have carried out anodized.

3. manual casing knife according to claim 1, which is characterized in that it is recessed that one layer of separate clamps (6) housing is covered with bar shaped The rubber sleeve (24) of slot.

4. manual casing knife according to claim 1, which is characterized in that both sides are the two of different angles to V-block (9) up and down A V-groove.

5. manual casing knife according to claim 1, which is characterized in that clamping fixture table (10) is placed in separate clamps (6) bottom Guide rail (13) on, rotation separate clamps (6) side guide rail handle (5) drive screw movement make clamping fixture table (10) along guide rail (13) it axially moves in separate clamps (6).

6. manual casing knife according to claim 5, which is characterized in that guide rail handle (5) can be moved up in handle through hole It is dynamic.