CN111644702A

CN111644702A - Portable internal expanding type pipe beveling machine

Info

Publication number: CN111644702A
Application number: CN202010396028.7A
Authority: CN
Inventors: 刘兴华
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-12
Filing date: 2020-05-12
Publication date: 2020-09-11

Abstract

The invention relates to the technical field of beveling machines and discloses a portable internal expanding type pipe beveling machine, wherein a rotating disc is movably arranged on the front surface of a machine body, tool rests are symmetrically and fixedly arranged on two sides of the front surface of the rotating disc respectively, a first beveling tool is movably sleeved in the tool rest on one side, a second beveling tool is movably sleeved in the tool rest on the other side, an inner cavity is arranged in the rotating disc at the position on the front back surface of the tool rest, an adjusting groove is arranged in the position on the back surface of the rotating disc at the front back surface of the tool rest, a sleeve shaft is fixedly connected to the back surface of the first beveling tool, a movable block is fixedly arranged on the back surface of the sleeve shaft, discs are movably sleeved in the positions of the outer ring of the sleeve shaft at the front inner wall and the rear wall of the inner cavity respectively, a spring is, the groove cutter is suitable for different pipes, and has good groove effect and long service life.

Description

Portable internal expanding type pipe beveling machine

Technical Field

The invention relates to the technical field of beveling machines, in particular to a portable internal expansion type pipe beveling machine.

Background

The application of pipeline is very extensive now, basically all everywhere are useful, need the pipe of rigidity in large-scale place very much, and the pipe of producing is probably unlimited length, consequently all need carry out welded connection with the pipe in many times, need carry out groove treatment to mouth of pipe position before the welding, impurity such as in order to conveniently remove rust, on the other hand leaves the welded space, the beveling machine utilizes motor drive groove sword to rotate and carries out the groove with the mouth of pipe position of pipe, be similar to the chamfer, the mouth of pipe that the groove was accomplished more does benefit to the welding, but current beveling machine still has some problems:

1. the internal expansion type beveling machine is fixed inside a pipe by using a tensioning device during working, then a beveling knife is screwed on a rotating disc, a starting motor is driven to start beveling, the beveling knife is designed, namely, the beveling knife is installed according to different diameters, but pipes with different diameters can be encountered when the internal expansion type beveling machine is used outside in practice, so that the pipes with different diameters can not be met during beveling;

2. when the beveling is carried out, a power device is utilized to push the rotary table to move towards the pipe for beveling, but the pushing speed is constant, the quantity of chips in the process of completing the beveling when the beveling cutter and the pipe are just contacted is continuously increased, so that the resistance of the pipe on the cutting edge of the beveling cutter is continuously increased under the condition of ensuring that the feeding speed is not changed, the service life of the cutting edge of the beveling cutter is reduced due to the beveling mode with the increased resistance, and the quality of beveling is not high.

Disclosure of Invention

Aiming at the defects of the background technology, the invention provides a portable internal expanding type pipe beveling machine which has the advantages of large beveling range and good beveling effect and solves the problems in the background technology.

The invention provides the following technical scheme: a portable internal expanding type pipe beveling machine comprises a machine body, wherein a driving device is fixedly installed at the top of the machine body, a handle is fixedly installed at the bottom of the machine body, a main shaft is fixedly sleeved inside the machine body, the front end of the main shaft extends out of the machine body, a tensioning turntable is movably installed on the back surface of the machine body, a tensioning device is fixedly installed on the outer ring of the front end of the main shaft, a rotating disc is movably installed on the front surface of the machine body, knife rests are symmetrically and fixedly installed on the two front sides of the rotating disc respectively, a first beveling knife is movably sleeved inside the knife rest on one side, a second beveling knife is movably sleeved inside the knife rest on the other side, an inner cavity is formed in the position, located on the front back surface of the knife rest, of the rotating disc, an adjusting groove is formed in the position, located on the front back surface of the knife rest, the back fixed mounting of sleeve axle has the movable block, the position that the outer lane of sleeve axle is located the inner chamber front and back inner wall has cup jointed the disc in the activity respectively, the position activity that the outer lane of sleeve axle is located between two discs has cup jointed the spring, the both ends of spring respectively with the terminal surface fixed connection of two discs, the bull stick has been cup jointed in the inside horizontal activity of adjustment tank, the one end of bull stick stretches into the inside of rotary disk and the side that the other end runs through the rotary disk, the fastening screw has been cup jointed to bull stick internal thread, the bottom of movable block is the halfcylinder and has seted up the helicla flute, the outer fixed surface of bull stick installs the spiral sand grip with spiral flute looks adaptation, the bearing has been cup jointed in the activity of the one end that the bull stick is located the rotary disk inside, the screw hole with fastening screw looks adaptation is seted.

Preferably, lines are carved in the middle of the top surfaces of the first beveling cutter and the second beveling cutter, and scale marks are arranged on the top surface of the cutter rest.

Preferably, the spiral convex strip and the spiral groove are opposite in spiral direction.

Preferably, the sleeve shaft is divided into two sections, the middle parts of the two sections are sleeved together through the shaft center, and the telescopic length of the sleeve shaft in the non-working state of the beveling machine is smaller than the minimum compression length of the spring.

Preferably, the elastic force of the spring is the same as the radial resistance of the pipe to the bevel cutter when the bevel of the first bevel cutter is half of the distance.

The invention has the following beneficial effects:

1. make the groove sword be connected to the movable block through having set up the sleeve shaft to movable block and bull stick thread contact, compare in prior art, can drive the movable block through rotating the bull stick and remove, the removal of movable block will drive the groove sword and remove, and the regulation that realizes the groove sword according to the scale on the knife rest is used for realizing carrying out the groove to the pipe of arbitrary diameter size, and fastening screw screws up after having adjusted simultaneously and can play fine limiting displacement.

2. Through having seted up the inner chamber in the rotary disk, the back fixedly connected with sleeve shaft of groove sword, the sleeve shaft is installed in the inner chamber and outer lane movable sleeve has the spring, compare in prior art, it has the spring that can reach the groove power to restrict through the setting, the effort that the pipe gave the groove sword when the groove machine feed speed is unchangeable but the smear metal volume becomes big is greater than the elasticity meeting compression spring of spring, and then make sleeve shaft length shorten, the effect that slows down the groove smear metal volume has been played, guarantee that the effect of groove still keeps better state, reduce the damage of groove sword in the effect of follow force, protect the life of groove sword.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is an overall rear view of the structure of the present invention;

FIG. 3 is an overall top view of the structure of the present invention;

FIG. 4 is a general cross-sectional view of the structure of the present invention;

FIG. 5 is a cross-sectional view taken along line A-A of FIG. 3;

FIG. 6 is a cross-sectional view taken along line B-B of FIG. 3;

fig. 7 is a schematic structural diagram of a conventional beveling machine.

In the figure: 1. a body; 2. a drive device; 3. a grip; 4. a main shaft; 5. a tensioning rotary table; 6. a tensioning device; 7. rotating the disc; 8. a first beveling cutter; 9. a second beveling cutter; 10. a tool holder; 11. an inner cavity; 12. a sleeve shaft; 13. a disc; 14. a spring; 15. a straight notch; 16. an adjustment groove; 17. a movable block; 18. a rotating rod; 19. fastening a screw rod; 20. a helical groove; 21. a spiral rib; 22. a bearing; 23. a threaded bore.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, a portable internal expanding type pipe beveling machine comprises a machine body 1, a driving device 2 is fixedly installed at the top of the machine body 1, a handle 3 is fixedly installed at the bottom of the machine body 1, a main shaft 4 is fixedly sleeved inside the machine body 1, the front end of the main shaft 4 extends out of the machine body 1, a tensioning turntable 5 is movably installed at the back of the machine body 1, a tensioning device 6 is fixedly installed at the outer ring of the front end of the main shaft 4, a rotating disk 7 is movably installed at the front of the machine body 1, tool rests 10 are respectively and symmetrically and fixedly installed at two sides of the front of the rotating disk 7, a first beveling tool 8 is movably sleeved inside the tool rest 10 at one side, a second beveling tool 9 is movably sleeved inside the tool rest 10 at the other side, an inner cavity 11 is formed at a position inside the rotating disk 7, an adjusting groove 16 is formed at a position of the back of the rotating disk 7, straight notches 15, the straight notch 15 plays a limiting role, so that the sleeve shaft 12 can conveniently move, meanwhile, the matched spring 14 can also tightly support the disc 13, the sleeve shaft 12 is fixedly connected to the back of the first beveling cutter 8, the movable block 17 is fixedly installed on the back of the sleeve shaft 12, the discs 13 are respectively movably sleeved at the positions of the outer ring of the sleeve shaft 12, which are positioned on the front inner wall and the back inner wall of the inner cavity 11, the spring 14 is movably sleeved at the position of the outer ring of the sleeve shaft 12, which is positioned between the two discs 13, two ends of the spring 14 are respectively fixedly connected with the end faces of the two discs 13, the rotating rod 18 is horizontally movably sleeved in the adjusting groove 16, one end of the rotating rod 18 extends into the rotating disc 7, the other end of the rotating rod penetrates through the side edge of the rotating disc 7, the fastening screw rod 19 is sleeved in the rotating rod 18 through internal threads, the bottom of the movable block 17 is semi-cylindrical and, a bearing 22 is movably sleeved at one end of the rotating rod 18 positioned in the rotating disk 7, and a threaded hole 23 matched with the fastening screw 19 is formed in the inner wall of the rotating disk 7 positioned on one side of the bearing 22.

The middle parts of the top surfaces of the first beveling cutter 8 and the second beveling cutter 9 are marked with lines, the top surface of the cutter rest 10 is provided with scale marks, the positions of the first beveling cutter 8 and the second beveling cutter 9 can be adjusted to adapt to pipes with different diameters through the central line on the beveling cutter and the scale marks on the cutter rest 10, and when different pipes are subjected to beveling outside, the rotary rod 18 is adjusted only to enable the beveling cutters to reach the required scales, so that the beveling cutter is convenient and visual and is beneficial to operation.

Wherein, spiral sand grip 21 is opposite with the spiral direction of helicla flute 20, spiral sand grip 21 is around on bull stick 18, and the one end of bull stick 18 is cup jointed through the activity of bearing 22, spiral sand grip 21 can directly match and drive movable block 17 with helicla flute 20 and remove when rotating bull stick 18, realize the regulation of groove sword through rotating bull stick 18, in order to realize promoting and the function of pullback movable block 17 when the spiral is opposite, the push-and-pull effect can't be realized to the same spiral direction.

Wherein, the sleeve shaft 12 is divided into two sections and the middle parts of the two sections are sleeved together through the shaft center, the sleeve shaft 12 is sleeved with the retractable length smaller than the minimum compression length of the spring 14 in the state that the beveling machine does not work, the spring 14 can be compressed when the beveling knife works, the compression has a certain limit, on one hand, in order to prevent the spring 14 from being damaged too much, on the other hand, because the distance of the bevel is certain, the spring 14 cannot be compressed wirelessly, the sleeve shaft 12 can be sleeved towards the middle parts when the spring 14 is compressed, so as to adjust the stress condition, the retraction length between the two sections of the sleeve shaft 12 can be ensured to be within the working range of the beveling machine, and the spring 14 can be protected after being completely retracted.

Wherein, the radial resistance of pipe to the groove sword is the same when spring 14's elasticity and 8 groove half distances of first groove sword, first groove sword 8 does not have very big resistance in first half section groove, can not influence the groove sword basically, the smear metal volume can increase a lot after first groove sword 8 smear metal has half, the radial resistance grow that first groove sword 8 received this moment can support compression spring 14, spring 14 compression this moment, play the effect of unloading, the groove sword can not compressed can be guaranteed to first half section spring 14's elasticity, just can compress when the latter half section resistance is too big and alleviate the resistance, protect the groove sword.

The working principle is that a main shaft 4 extends into a pipe, then a tensioning rotary table 5 is rotated, a beveling machine is clamped on the pipe by expanding a tensioning device 6, then a rotary rod 18 is rotated according to the diameter of the pipe to be beveled as required, a spiral convex strip 21 on the rotary rod 18 interacts with a spiral groove 20 on a movable block 17 to push the movable block 17 to move, the movable block 17 drives a sleeve shaft 12 fixedly connected with the movable block to move, so that the adjustment of a first beveling knife 8 is realized, the specific length is adjusted according to scales on a knife rest 10, then a fastening screw 19 is screwed to fix the rotary rod 18 to prevent the rotary rod from rotating, and the adjustment modes of second beveling knives are the same;

after the starting switch, 1 drive rotary disk 7 of organism is rotary motion forward, first groove sword 8 and the rotatory forward and carry out the groove smear metal to the mouth of pipe with second groove sword 9, then after the process of half of smear metal, the groove sword can receive radial resistance grow, can support to press sleeve shaft 12 to the middle part shrink this moment, can compress spring 14 simultaneously, spring 14 shares the resistance goes on, prevent that the groove sword from working under the high resistance always, withdraw from rotary disk 7 backward after the groove finishes, adjust the groove that carries out next pipe.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a portable internal expanding formula pipe beveling machine, includes organism (1), the top fixed mounting of organism (1) has drive arrangement (2), the bottom fixed mounting of organism (1) has handle (3), the fixed front end that has cup jointed main shaft (4) and main shaft (4) of inside of organism (1) stretches out organism (1), the back movable mounting of organism (1) has tight carousel (5) that rises, the front end outer lane fixed mounting of main shaft (4) has tight device (6), its characterized in that rises: the front movable mounting of organism (1) has rotary disk (7), the positive both sides of rotary disk (7) are symmetry fixed mounting respectively and have knife rest (10), one side first groove sword (8) have been cup jointed in the inside activity of knife rest (10), the opposite side second groove sword (9) have been cup jointed in the inside activity of knife rest (10), inner chamber (11) have been seted up to the position that rotary disk (7) inside is located the knife rest (10) dead back, adjustment tank (16) have been seted up to the position that the rotary disk (7) back is located the dead back of knife rest (10), between knife rest (10) and inner chamber (11) with straight notch (15) have all been seted up between adjustment tank (16) and inner chamber (11), the back fixedly connected with sleeve axle (12) of first groove sword (8), the back fixed mounting of sleeve axle (12) has movable block (17), the position that the inner wall was located around inner chamber (11) in the outer lane of sleeve axle (12) has moved about the cup jointed the (13) A spring (14) is movably sleeved at the position, between the two disks (13), of the outer ring of the sleeve shaft (12), two ends of the spring (14) are respectively and fixedly connected with the end surfaces of the two discs (13), a rotating rod (18) is transversely movably sleeved in the adjusting groove (16), one end of the rotating rod (18) extends into the rotating disc (7) and the other end of the rotating rod penetrates through the side edge of the rotating disc (7), a fastening screw rod (19) is sleeved in the rotating rod (18) through threads, the bottom of the movable block (17) is in a semi-cylindrical shape and is provided with a spiral groove (20), the outer surface of the rotating rod (18) is fixedly provided with a spiral convex strip (21) matched with the spiral groove (20), a bearing (22) is movably sleeved at one end of the rotating rod (18) positioned in the rotating disc (7), the inner wall of the rotating disc (7) on one side of the bearing (22) is provided with a threaded hole (23) matched with the fastening screw rod (19).

2. The portable internal expanding pipe beveling machine of claim 1 wherein: lines are carved in the middle of the top surfaces of the first beveling cutter (8) and the second beveling cutter (9), and scale marks are arranged on the top surface of the cutter rest (10).

3. The portable internal expanding pipe beveling machine of claim 1 wherein: the spiral convex strips (21) and the spiral grooves (20) are opposite in spiral direction.

4. The portable internal expanding pipe beveling machine of claim 1 wherein: the sleeve shaft (12) is divided into two sections, the middle parts of the two sections are sleeved together through the shaft center, and the sleeve shaft (12) is sleeved and connected with the spring (14) in a telescopic length in a non-working state of the beveling machine and is smaller than the minimum compression length of the spring.

5. The portable internal expanding pipe beveling machine of claim 1 wherein: the elasticity of the spring (14) is the same as the radial resistance of the pipe to the bevel cutter when the bevel of the first bevel cutter (8) is half of the distance.