CN210548954U

CN210548954U - Special clamp for pipes

Info

Publication number: CN210548954U
Application number: CN201920362779.XU
Authority: CN
Inventors: 余英海; 王伟; 林晓明; 周桂兵; 李�荣; 高云峰
Original assignee: Shenzhen Han's Mp Laser Technology Co ltd; Han s Laser Technology Industry Group Co Ltd
Current assignee: Shenzhen Han's Mp Laser Technology Co ltd; Han s Laser Technology Industry Group Co Ltd
Priority date: 2019-03-20
Filing date: 2019-03-20
Publication date: 2020-05-19
Anticipated expiration: 2029-03-20

Abstract

The utility model discloses a tubular product special fixture, include: cylinder type barrel, the swing arm, the annular cover, the taper sleeve, cylinder type barrel structure has the cavity with the swing arm adaptation, the tip of swing arm one end is provided with rotatory handle, the position department that is close to being equipped with rotatory handle on the swing arm is provided with the dead slot, be provided with one on the dead slot with the annular cover of dead slot radial rotation adaptation, the annular cover passes through bolted connection annular cover with cylinder type barrel and passes through bolted connection with the terminal surface of cylinder type barrel one end with the dead slot, the swing arm other end can be connected through the screw thread with the pointed end of taper sleeve, the cylinder type barrel other end is the exposed core, correspond the position with the exposed core and set up for the taper profile in the through-hole. The utility model discloses tubular product special fixture can shorten the cutting tails to the extension of geminate transistors work, and it is extravagant to reduce tubular product, simple structure.

Description

Special clamp for pipes

Technical Field

The utility model belongs to the technical field of anchor clamps, especially, relate to a tubular product special fixture.

Background

In the prior art, a laser pipe cutting machine clamps a pipe by a rear chuck lengthening claw and a front chuck roller claw together so as to realize rotary cutting of the pipe. The front chuck is usually fixedly installed on the pipe cutting mechanism, the distance between the chuck clamping surface, the cutting head and the front chuck roller jaws results in the incapability of cutting the tailings with certain length, namely the tailings can not be effectively utilized, the laser pipe cutting mechanism is in batch production, and the excessive length of the pipe tailings can cause huge waste of pipe materials, so that the production cost is increased.

However, the current adopted solution is to set the front chuck to be movable in the pipe cutting machine tool, and by program control, the front chuck is moved to the front of the cutting head through program control at the tail end of the pipe cutting, thereby avoiding the influence of the distance between the cutting head and the front chuck roller jaw. However, the method has the advantages of high program control difficulty, high failure rate and greatly improved equipment cost.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves provides a tubular product special fixture, can solve the tubular product tails overlength that tubular product cutting process produced, the technical problem of extravagant tubular product.

In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides a tubular product special fixture, include, the swing arm, annular cover, cylinder type barrel, the taper sleeve, the structure has the cavity with the swing arm adaptation, the tip of swing arm one end is provided with the handle, the position department that is close to the handle on the swing arm is provided with the dead slot, be provided with one on the dead slot with the dead slot can radially rotate the annular cover of adaptation, bolted connection is passed through with the terminal surface of cylinder type barrel one end to the annular cover, realize that the relative cylinder type barrel of swing arm can radially rotate, the swing arm other end can be connected through the screw thread adaptation with the pointed end of taper sleeve, the cylinder type barrel other end is the exposed core, correspond the position with the exposed core and set up for the taper surface.

When the handle is rotated clockwise, the rotating rod rotates clockwise relative to the cylindrical barrel, the taper sleeve can move towards the handle and generates outward expansion pressure on the taper surface, so that the clamping end is expanded outwards, and a pipe sleeved on the cylindrical barrel is clamped tightly.

The pipe cutting device comprises a cylindrical barrel body, a clamping end and a sliding device, wherein the cylindrical barrel body is provided with a height difference with the clamping end to form a step shape, the height difference is the same as the wall thickness of a pipe to be clamped, the pipe is clamped by the clamping end, and the pipe can be smoothly transited with the sliding device constructed on the pipe cutting mechanism in the pipe cutting and advancing process.

The axial length of the clamping end is 30-40 mm, and the axial length of the clamping end is 30-40 mm to ensure the stress action of the pipe in the cutting process due to the problem of the length of the pipe in the cutting process of the actual pipe.

Wherein, the clamping end is provided with a plurality of open slots along the axial direction.

Wherein, when the open slot is more than two, the interval is equal between the adjacent open slot, and during anticlockwise rotation swing arm, the taper sleeve moves to the direction of keeping away from the handle for the centre gripping end recovers, so that take out tubular product.

Wherein, the one end that every open slot is close to cylinder type barrel step all constructs the waist round hole, and when the conical surface made the exposed core department outwards strutted under the exogenic action, the toughness of clamping end 61 can be increased in the waist round hole.

The annular sleeve consists of two semicircular arc pieces, the two semicircular arc pieces consist of a first semicircular arc piece and a second semicircular arc piece, and the first semicircular arc piece and the second semicircular arc piece are respectively clamped into the shaft groove at one end of the rotating rod.

Wherein, a gap of 0.01 mm to 0.1 mm is formed between the annular sleeve and the shaft groove.

And when the clearance between the annular sleeve and the shaft groove is set to be less than 0.02 mm, the rotating rod can keep radial movement in the cylindrical barrel cavity.

The annular sleeve can be changed into a bearing seat, and the function and function of the annular sleeve are the same as those of the annular sleeve, so that the description is omitted.

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

1. the other end of the rotary rod is in threaded adaptive connection with the tip of the taper sleeve, the other end of the cylindrical barrel is a clamping end, the position corresponding to the clamping end in the through hole is a taper surface, the clamping end is made of elastic steel materials, the taper sleeve can move along the axial direction of the rotary rod, outward opening and restoration of the clamping end are achieved, and then the pipe sleeved on the clamping end can be clamped and loosened.

2. The special pipe clamp is provided with a pipe through the clamping end sleeve, and can extend the pipe, so that the pipe tailing after cutting is shortened, the waste of the pipe tailing is retrieved, and the use cost of the pipe is reduced.

Drawings

In order to illustrate the solution of the present application more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are some embodiments of the present invention, and that other drawings can be obtained by those skilled in the art without inventive effort.

FIG. 1 is a schematic view of a sectional structure of a special fixture for pipes according to the present invention;

FIG. 2 is a schematic structural view of a special pipe clamp of the present invention;

FIG. 3 is a schematic structural view of two semi-circular arc members of a special pipe clamp according to the present invention;

fig. 4 is a schematic structural diagram of the tube cutting mechanism for loading the special clamp for tubes.

Reference numerals: the pipe cutting machine comprises a clamp 10, a rotary rod 11, a handle 111, a shaft groove 112, an annular sleeve 21, a first semicircular arc piece 211, a second semicircular arc piece 212, a cylindrical barrel 31, a taper sleeve 41, a tapered surface 51, a clamping end 61, an opening groove 611, a waist circular hole 612, a rear chuck lengthening claw 71, a front chuck roller claw 81, a cutting head 91 and a pipe 100.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The terms "first", "second", and the like in the claims, the description, and the drawings of the specification are used for distinguishing different objects and not for describing a particular order.

As shown in fig. 1, the utility model provides a first technical scheme: a special pipe clamp 10 comprises a rotary rod 11, an annular sleeve 21, a cylindrical barrel 31 and a taper sleeve 41; the cylindrical barrel 31 is provided with a cavity matched with the rotary rod, the end part of one end of the rotary rod 11 is provided with a handle 111, and a shaft groove 112 is arranged on the rotary rod 11 at a position close to the handle; an annular sleeve 21 which can be matched with the shaft groove 112 in a radial rotating mode is arranged on the shaft groove 112, the annular sleeve 21 is connected with the end face of one end of the cylindrical barrel 31 through a bolt 213, the rotating rod 11 can rotate in the radial direction relative to the cylindrical barrel 31, and the other end of the rotating rod 11 is connected with the tip end of the taper sleeve 41 in a threaded matching mode; the other end of the cylindrical barrel 31 is a clamping end 61, the position in the through hole corresponding to the clamping end 61 is a conical surface 51, and the clamping end 61 is made of elastic steel materials, so that the toughness of the clamping end 61 can be improved.

Further, when the handle 111 is rotated clockwise, the taper sleeve 41 can move toward the handle and generate outward expansion pressure on the tapered surface 51 during the clockwise rotation process of the rotating rod 11 relative to the cylindrical barrel 31, so that the clamping end 61 is expanded outward to clamp the pipe sleeved on the cylindrical barrel 31.

As shown in fig. 2, the height difference between the cylindrical barrel 31 and the clamping end 61 is step-shaped, the height difference is the same as the wall thickness of the pipe to be clamped, and the pipe is clamped by the clamping end 61, so that the pipe special clamp 10 and the sliding device constructed on the pipe cutting mechanism can keep smooth transition in the pipe cutting and advancing process.

Further, the axial length of the clamping end 61 of the cylindrical barrel 31 is 30 mm to 40 mm; for example, 30 mm, 32 mm, 35 mm, 38 mm, or 40 mm, preferably 35 mm. So set up, because of the tubular product length problem in the cutting process at actual tubular product, be 30 millimeters to 40 millimeters with the axial length of exposed core 61 for the purpose of ensureing the atress effect of tubular product in the cutting process.

Further, the holding end 61 is configured with a plurality of open grooves 611 in the axial direction.

Further, when the number of the opening grooves 611 is two or more, the distance between the adjacent opening grooves 611 is equal, that is, two or more opening grooves may be provided. When the open grooves 611 of the clamping end 61 are arranged more than two, the distance between adjacent open grooves is set, and the better pipe clamping effect can be achieved through the arrangement. Meanwhile, during the process of rotating the rotating rod 11 counterclockwise, the taper sleeve 41 will move away from the handle, so that the clamping end 61 is restored to take out the pipe.

Further, a waist-round hole 612 is formed at one end of each open groove 611 close to the step of the cylindrical barrel body; the oval hole 612 can increase the toughness of the clamping end 61 when the tapered surface 51 is forced outward at the clamping end 61.

As shown in fig. 3, the annular sleeve 21 is composed of two semicircular arc members, including a first semicircular arc member 211 and a second semicircular arc member 212. The first semicircular arc piece 211 and the second semicircular arc piece 212 are respectively clamped in the shaft groove 112 at one end of the rotating rod 11.

Further, the annular sleeve 21 is configured with a clearance of 0.01 mm to 0.1 mm from the shaft groove 112.

So that the rotating rod can move radially in the through hole of the cylindrical barrel 31 to prevent the rotating rod 11 from moving axially in the through hole of the cylindrical barrel 31.

Further, the clearance between the annular sleeve 21 and the shaft groove 112 is less than 0.02 mm, so that the rotating rod 11 can keep radial movement in the through hole of the cylindrical barrel 31.

Further, the annular sleeve 21 may also be a bearing seat, and the function and purpose of the annular sleeve 21 are the same as those of the annular sleeve 21 described above, and will not be described here.

As shown in fig. 4, the pipe cutting mechanism is configured with a rear chuck lengthening jaw 71, a front chuck cylinder jaw 81, and a cutting head 91.

The working process is as follows: after the pipe is sleeved in the clamping end of the cylindrical barrel, when the handle at one end of the rotating rod is rotated clockwise, the rotating rod rotates clockwise in the cavity of the cylindrical barrel, the tip of the taper sleeve is matched with the other end of the rotating rod through thread rotation, the taper sleeve moves towards the handle, and then the taper sleeve generates outward expansion pressure on the taper surface of the clamping end, so that the clamping end is unfolded outwards, and the pipe sleeved at the clamping end of the cylindrical barrel is clamped tightly.

After the pipe is clamped by the clamp, the pipe is placed on the laser pipe cutting machine, the rear chuck lengthening claw clamps one end of the pipe special clamp provided with the handle, and the pipe special clamp is placed into the front chuck through hole. When the pipe tailing is cut, the special pipe clamp can lengthen the pipe, so that the distance between the pipe and the cutting head is reduced, and the effect of shortening the length of the tailing is achieved.

After the cutting is accomplished, anticlockwise rotation swing arm handle makes the taper sleeve remove to the direction of keeping away from the handle, makes the exposed core elasticity recover, can conveniently take out tubular product tails promptly.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. Such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A pipe-dedicated clamp (10), characterized in that it comprises: a rotary rod (11), an annular sleeve (21), a cylindrical barrel body (31) and a taper sleeve (41);

the cylindrical barrel (31) is provided with a cavity matched with the rotary rod (11), the end part of one end of the rotary rod (11) is provided with a handle (111), a shaft groove (112) is arranged at a position, close to the handle (111), on the rotary rod (11), the shaft groove (112) is provided with an annular sleeve (21) matched with the shaft groove (112) in a radial rotating manner, the annular sleeve (21) is connected with the end surface of one end of the cylindrical barrel (31) through a bolt (213), the other end of the rotary rod (11) is connected with the tip of the conical sleeve (41) through threads, the other end of the cylindrical barrel (31) is a clamping end (61), and a conical surface (51) is arranged at a position, corresponding to the clamping end (61), in the through hole;

when the handle (111) is rotated clockwise, the rotating rod (11) rotates relative to the cylindrical barrel (31), the taper sleeve (41) can move towards the handle direction and generates outward expansion pressure on the tapered surface (51), so that the clamping end (61) is expanded outwards, and a pipe sleeved on the cylindrical barrel (31) is clamped.

2. The clamp special for the pipe according to claim 1, wherein a height difference is formed between the body of the cylindrical barrel (31) and the clamping end (61) to form a step shape, and the height difference is the same as the wall thickness of the pipe to be clamped;

the pipe is clamped by the clamping end (61), so that the pipe special clamp (10) and a sliding device constructed on the pipe cutting mechanism can keep smooth transition in the pipe cutting and advancing process.

3. The clamp special for the pipe according to claim 2, wherein the axial length of the clamping end (61) is 30 mm to 40 mm;

wherein, because of the pipe length problem in the cutting process of the actual pipe, the axial length of the clamping end (61) is 30 mm to 40 mm, so that the stress action of the pipe in the cutting process can be ensured.

4. -pipe-dedicated clamp according to claim 3, characterized in that the clamping end (61) is configured with several open grooves (611) in the axial direction.

5. The pipe dedicated fixture according to claim 4, wherein when the number of the open grooves (611) is more than two, the distance between the adjacent open grooves (611) is equal;

when the handle (111) is rotated counterclockwise, the taper sleeve (41) moves in a direction away from the handle (111) so that the clamping end (61) is restored and the pipe can be taken out.

6. The pipe exclusive clamp according to claim 4, wherein one end of each open groove (611) is configured with a waist circular hole (612);

when the conical surface (51) enables the clamping end (61) to be outwards expanded under the action of external force, the waist circular hole (612) can increase the toughness of the clamping end (61).

7. The clamp, as set forth in claim 1, characterized in that the annular sleeve (21) is composed of two semi-circular arc pieces;

the annular sleeve is composed of a first semicircular arc piece (211) and a second semicircular arc piece (212), and the first semicircular arc piece (211) and the second semicircular arc piece (212) are respectively clamped in a shaft groove (112) at one end of the rotating rod (11).

8. The pipe exclusive clamp according to claim 7, characterized in that the annular sleeve (21) and the shaft groove (112) are configured with a clearance of 0.01 mm to 0.1 mm.

9. The clamp special for the pipe according to claim 8, wherein the clearance between the annular sleeve (21) and the shaft groove (112) is less than 0.02 mm, so that the rotating rod (11) can keep radial movement in the through hole of the cylindrical barrel (31).

10. The clamp special for pipes according to claim 1, characterized in that the annular sleeve (21) is a bearing seat.