CN216028442U

CN216028442U - Pipe presss from both sides dress quick change jack catch structure

Info

Publication number: CN216028442U
Application number: CN202122357161.4U
Authority: CN
Inventors: 董晗; 徐诚; 汪杰
Original assignee: Wuhan He Laser Engineering Co ltd
Current assignee: Wuhan He Laser Engineering Co ltd
Priority date: 2021-09-27
Filing date: 2021-09-27
Publication date: 2022-03-15
Anticipated expiration: 2031-09-27

Abstract

The utility model relates to a quick-change clamping jaw structure for clamping a circular tube, which comprises a clamping jaw, wherein a clamping head is sleeved at the end part of the clamping jaw, a threaded hole is formed in the clamping jaw, a through hole is formed in the clamping head, the through hole and the central axis of the threaded hole are positioned on the same straight line, a clamping unit is arranged in the threaded hole, and the clamping unit is clamped with the through hole. The clamping units enable the clamping heads to be quickly replaced, and the clamping heads with different sizes can be correspondingly used for clamping circular tubes with different sizes, so that the contact area is large during clamping, the contact pressure is reduced, and the deformation of the thin-wall circular tube is prevented; the clamping of the round pipe with larger or smaller pipe diameter can be realized by replacing the clamping head, the small pipe is clamped by the clamping head with smaller thickness, and the large pipe is clamped by the larger clamping head; the chuck can be replaced quickly, the use is convenient, and the clamping effect is good. The length of the clamping jaw is increased, and the problem that the tailing is too long to cause waste when the common clamping jaw clamps and cuts is solved.

Description

Pipe presss from both sides dress quick change jack catch structure

Technical Field

The utility model relates to the technical field of circular tube clamping, in particular to a quick-change clamping jaw structure for circular tube clamping.

Background

When using the pipe cutting machine to cut tubular product, for the cutting operation of convenience, adopt the chuck jack catch to fix tubular product usually, the removal of chuck jack catch realizes the removal of tubular product, makes the cutting operation normally go on, and three chuck type pipe cutting machine is one kind of pipe cutting machine, and the cooperation of three chucks can be convenient for carry out the cutting operation to overlength pipe, and three chuck type pipe cutting machine adopts laser cutting's mode to carry out the tubular product cutting.

When the thin-wall circular tube is subjected to laser cutting, the following difficulties exist in clamping the thin-wall circular tube by using the pneumatic chuck: the pipe wall is too thin, and the thin-wall circular pipe is easy to deform when being clamped from the outside; when pipes with different pipe diameters are clamped, the stroke of the clamping jaw of the pneumatic chuck is too small, and the pipes with larger or smaller pipe diameters are difficult to clamp in place; when the ordinary chuck is used for clamping and cutting, the tailing is too long, so that the tailing is wasted.

Therefore, a circular tube clamping and quick-change claw structure is needed to solve the technical problem.

SUMMERY OF THE UTILITY MODEL

Aiming at the technical problems in the prior art, the utility model provides a circular tube clamping and quick-changing claw structure.

The technical scheme for solving the technical problems is as follows: the utility model provides a quick change jack catch structure is pressed from both sides to pipe, includes the jack catch, the tip cover of jack catch is equipped with the chuck, the inside of jack catch is provided with the screw hole, the inside of chuck is provided with the through-hole, the through-hole with the axis of screw hole is located same straight line, the inside of screw hole is provided with the screens unit, the screens unit with the through-hole joint.

Preferably, the round tube clamp is provided with a quick-change jaw structure, wherein the length of the jaw is more than ten centimeters.

Preferably, the quick-change claw clamping structure is clamped in the round tube, wherein the clamping unit comprises a plunger, external threads are arranged on the outer portion of the plunger, a sliding groove is formed in one end, close to the through hole, of the plunger, a spring is embedded into the sliding groove, a steel ball is arranged at the tail end of the spring, and the steel ball is abutted to the inner wall of the tail end of the sliding groove.

Preferably, the round tube is clamped with the quick-change claw structure, wherein the inner diameter of the opening at the tail end of the sliding groove is smaller than the inner diameter of the sliding groove.

Preferably, the round tube clamp is provided with a quick-change jaw structure, wherein one end of the plunger, which is far away from the through hole, is provided with an inner hexagonal notch, and the inner hexagonal notch is suitable for rotating the plunger by a hexagonal wrench.

Preferably, the circular tube is provided with a quick-change jaw structure, wherein the cross section of the jaw is fan-shaped, and the cross section of the chuck is fan-shaped.

Preferably, the round tube is clamped with the quick-change jaw structure, wherein an extension line of a central axis of the threaded hole passes through the center of an outer arc of the cross section of the jaw.

The utility model has the beneficial effects that: the clamping heads are sleeved at the end parts of the clamping jaws, the threaded holes are formed in the clamping jaws, so that the plungers in the clamping units can be fixed in the clamping jaws, the clamping heads can be replaced quickly through the clamping units, and the clamping heads with different sizes can be correspondingly used for clamping round pipes with different sizes, so that the contact area is large during clamping, the contact pressure is reduced, and the thin-wall round pipes are prevented from deforming; in addition, the clamping of the round pipe with larger or smaller pipe diameter can be realized by replacing the clamping heads, the small pipe is clamped by the clamping head with smaller thickness, the large pipe is clamped by the larger clamping head, and the clamping device can be adjusted and used according to specific conditions; the chuck can be replaced quickly, the use is convenient, and the clamping effect is good. The length of the clamping jaw is increased, and the problem that the tailing is too long to cause waste when the common clamping jaw clamps and cuts is solved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention in use;

FIG. 2 is a perspective view of the jaws and chuck;

FIG. 3 is a side view of FIG. 2;

FIG. 4 is a cross-sectional view A-A of FIG. 3;

fig. 5 is a partially enlarged view of B in fig. 4.

In the drawings, the components represented by the respective reference numerals are listed below:

1. the device comprises a sleeve, 2, a sleeve fixing seat, 3, a gear, 4, an air pipe joint, 5, a rotating shaft, 6, a chuck, 7, a clamping jaw, 8, a clamping head, 9, a through hole, 10, a threaded hole, 11, a plunger, 12, an inner hexagonal notch, 13, a steel ball, 14, a spring, 15 and a sliding groove.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the utility model.

As shown in figures 1, 2 and 3, the circular tube clamping and quick-changing jaw structure comprises a jaw 7, wherein the length of the jaw 7 is larger than ten centimeters, the jaw length is lengthened in the patent compared with the traditional jaw, the circular tube tailing is closer to a cutting head when cutting, and the waste of the tailing is reduced.

The end part of the claw 7 is sleeved with a chuck 8, and the chuck 8 is directly contacted with the pipe wall. 5 one end of pivot is provided with

air pipe connector

4, and 5 insides of pivot are hollow structure, and the other end is connected with chuck 6, and the equal angle is installed on chuck 6 between the three jack catch 7. The rotating shaft 5 is inserted into the sleeve 1 and is rotatably connected with the sleeve. The welding of 1 bottom of sleeve has

sleeve fixing base

2, and 4 departments of air pipe joint are used for connecting the trachea, and 5 outside fixedly connected with gears 3 of pivot rotate through gear 3 and drive pivot 5 and rotate to drive jack catch 7 and the pipe rotates, the cutting of being convenient for. The pneumatic control of the chuck 6 is realized through the air passages of the air pipe joint 4 and the rotating shaft 5, so that the opening and closing of the clamping jaws 7 are realized.

As shown in fig. 4 and 5, the jaws 7 are provided with threaded holes 10 inside, the collet 8 is provided with through holes 9 inside, and the threaded holes 10 are provided with locking units which are locked with the through holes 9. Specifically, the screens unit includes plunger 11, and the outside of plunger 11 is provided with the external screw thread, and plunger 11 is threaded connection with screw hole 10. Plunger 11's the one end that is close to through-hole 9 is provided with spout 15, and the inside embedding of spout 15 has spring 14, and spring 14's end is provided with steel ball 13, and through-hole 9 is located same straight line with the axis of screw hole 10, and the terminal opening part internal diameter of spout 15 is less than the inside diameter of spout 15, and steel ball 13 and the terminal inner wall butt of spout 15 to lock steel ball 13 in spout 15, prevent its roll-off spout 15. When the chuck 8 needs to be replaced, the chuck can be directly pulled out and inserted, and because the end parts of the steel balls 13 are of cambered surface structures, the springs 14 can be automatically adjusted when the chuck 8 is installed and pulled out, so that the steel balls can freely move in the sliding grooves 15, the end parts of the steel balls 13 are clamped in the through holes 9 after the steel balls are clamped in place, and the chuck 8 is stably installed under the condition of not being subjected to transverse external force.

One end of the plunger 11 far away from the through hole 9 is provided with an inner hexagonal recess 12, and the inner hexagonal recess 12 is used for rotating the plunger 11 by a hexagonal wrench for installing and taking out the plunger 11. The cross section of the claw 7 is fan-shaped, and the cross section of the chuck 8 is also fan-shaped. The extension line of the central axis of the threaded hole 10 passes through the center of the outer arc of the cross section of the clamping jaw 7. When the thin-wall circular tube is clamped, the clamping jaws 7 are folded, the end part of the circular tube is sleeved outside the three clamping jaws 7, and then the three clamping jaws 7 are gradually opened, so that the chuck 8 is abutted against the inner wall of the circular tube.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the utility model. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims

1. The utility model provides a quick change jack catch structure is pressed from both sides to pipe which characterized in that: including jack catch (7), the tip cover of jack catch (7) is equipped with chuck (8), the inside of jack catch (7) is provided with screw hole (10), the inside of chuck (8) is provided with through-hole (9), through-hole (9) with the axis of screw hole (10) is located same straight line, the inside of screw hole (10) is provided with the screens unit, the screens unit with through-hole (9) joint.

2. The round tube clamping and quick-change jaw structure according to claim 1, characterized in that: the length of the clamping jaw (7) is more than ten centimeters.

3. The round tube clamping and quick-change jaw structure according to claim 1, characterized in that: the screens unit includes plunger (11), the outside of plunger (11) is provided with the external screw thread, be close to of plunger (11) the one end of through-hole (9) is provided with spout (15), the inside embedding of spout (15) has spring (14), the end of spring (14) is provided with steel ball (13), steel ball (13) with the terminal inner wall butt of spout (15).

4. The round tube clamping and quick-change jaw structure according to claim 3, characterized in that: the inner diameter of the opening at the tail end of the sliding groove (15) is smaller than the inner diameter of the sliding groove (15).

5. The round tube clamping and quick-change jaw structure according to claim 3, characterized in that: one end, far away from the through hole (9), of the plunger (11) is provided with an inner hexagonal notch (12), and the inner hexagonal notch (12) is suitable for rotating the plunger (11) through a hexagonal wrench.

6. The round tube clamping and quick-change jaw structure according to claim 1, characterized in that: the cross section of each clamping jaw (7) is fan-shaped, and the cross section of each clamping head (8) is fan-shaped.

7. The round tube clamping and quick-change jaw structure according to claim 6, characterized in that: the extension line of the central axis of the threaded hole (10) passes through the center of the outer arc of the cross section of the clamping jaw (7).