CN113560911A

CN113560911A - Novel internal expanding beveling machine

Info

Publication number: CN113560911A
Application number: CN202110921785.6A
Authority: CN
Inventors: 项光明; 项林华; 项文斌; 丁宏; 孙锦林
Original assignee: Zhejiang Wellnit Mechanical Technology Co ltd
Current assignee: Zhejiang Weinite Machinery Manufacturing Co ltd
Priority date: 2021-08-11
Filing date: 2021-08-11
Publication date: 2021-10-29
Anticipated expiration: 2041-08-11
Also published as: CN113560911B

Abstract

The invention discloses a novel internal expansion beveling machine, which comprises an expansion hydraulic cylinder body, wherein the right end of the expansion hydraulic cylinder body is provided with a cylinder opening, an end cover is connected with the inner thread of the cylinder opening, the interior of the expansion hydraulic cylinder body is connected with a piston in a sliding manner, the left end of the expansion hydraulic cylinder body extends into an inclined block and is in butt sliding connection, the outer side wall of the inclined block is connected with a plurality of groups of expansion blocks through bolt threads, a shoulder screw is screwed, a rectangular groove hole formed in a clamping jaw baffle plate can slide relative to the shoulder screw when being extruded, the inclined block is inserted into a pipeline, the expansion hydraulic cylinder body works and moves leftwards at the moment, the inclined block moves outwards under the extrusion thrust of the expansion hydraulic cylinder body, so that the expansion block on the inclined block expands the inner wall of the pipeline, by adopting the expansion mode, the redundant space in the inclined block is effectively utilized, and the originally huge mechanism is compacted, meanwhile, a complex connecting mechanism is omitted, and a large amount of cost is saved.

Description

Novel internal expanding beveling machine

Technical Field

The invention relates to the technical field of an internal expansion beveling machine, in particular to a novel internal expansion beveling machine.

Background

The inner diameter installation type beveling machine has the characteristics of light weight, convenient carrying and the like, and is used for processing the beveling, chamfering, trimming and the like of U, V type welding seams of carbon steel, stainless steel, alloy steel and other material pipes.

The expansion part of the traditional internal expansion beveling machine adopts a mechanical type, the expansion chuck and the hydraulic cylinder are common mechanisms or spare parts, when the traditional expansion chuck (namely an inclined block) and the hydraulic cylinder are used in a combined mode, a plurality of parts are required to be connected, and when the traditional expansion chuck and the hydraulic cylinder are used in a combined mode, a larger space is required, so that the whole machine becomes huge. Usually in order to alleviate the whole weight of bloated tight chuck, can undercut its inside, therefore its inner space is great, has the waste in the space, and when adopting machinery to expand tightly, mechanical expansion does not have lasting power, and board vibrations can loosen and take off.

Therefore, a novel internal expansion beveling machine is provided.

Disclosure of Invention

The invention aims to provide a novel internal expansion beveling machine to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a novel interior expanding beveling machine, includes the tight pneumatic cylinder body that expands, and the jar mouth has been seted up to the tight pneumatic cylinder body right-hand member that expands, and jar mouth internal thread connection has the end cover, the inside sliding connection of the tight pneumatic cylinder body that expands has the piston, and expands and stretch into the sloping block and offset sliding connection of pneumatic cylinder body left end, the sloping block lateral wall has a plurality of groups bloated piece through bolt threaded connection, sloping block left end face sliding connection has a plurality of groups clamping jaw baffle, every group a set of rectangle notch has been seted up on the clamping jaw baffle, and every group rectangle notch stretches into and sliding connection has a set of shoulder screw, the shoulder screw stretches into sloping block left side wall and threaded connection, piston left end fixedly connected with piston rod, the piston rod runs through and stretches out sloping block and sliding connection, the sloping block wholly stretches into in the groove pipeline and swing joint.

Preferably, the right side of the expansion hydraulic cylinder penetrates through and extends into and is fixedly connected with a main shaft, a hollow oil pipe is fixedly connected in the main shaft in a penetrating manner, a dustproof ring separation blade is connected to the outer side of the main shaft in a sliding manner, a dustproof ring is fixedly connected to the outer side of the dustproof ring separation blade in a penetrating manner, a locking nut is connected to the dustproof ring in a penetrating manner, the dustproof ring is connected to a sliding copper sleeve in a sliding manner through the locking nut in a threaded manner, the sliding copper sleeve is fixedly connected to the sliding sleeve, the sliding sleeve is fixedly connected with a conical roller bearing, a cutter disc is fixedly connected to the outer side of the sliding sleeve, the right end of the cutter disc penetrates through and extends into and is connected with a rack, a hydraulic motor is fixedly connected in the rack, a driving gear is fixedly connected to the hydraulic motor, the driving gear is meshed with a driven gear, the driven gear is fixedly connected to the side face of the cutter disc, and a plurality of groups of locking screws are connected to the right end face of the cutter disc in a threaded manner, and the right end face of the cutter head is in threaded connection with two groups of guide rail shafts through locking screws, a push-pull lever is fixedly connected between the ends, far away from the locking screws, of the two groups of guide rail shafts, and the push-pull lever is fixedly connected onto the hydraulic cylinder.

Compared with the prior art, the invention has the beneficial effects that:

1. screw up the shaft shoulder screw, the rectangular channel hole that makes the clamping jaw baffle set up can take place relative slip with the shaft shoulder screw when receiving the extrusion, insert the sloping block in the pipeline, the tight pneumatic cylinder body that expands works this moment and move left, the sloping block receives the extrusion thrust of the tight pneumatic cylinder body that expands and moves to the outside, thereby make the bloated block on the sloping block expand tightly to the pipeline inner wall, adopt this kind of tight mode that expands, effectively utilized the unnecessary space in the sloping block, will originally huge mechanism become compact, remove complicated coupling mechanism from simultaneously, practice thrift a large amount of costs, and avoided mechanical tight power that does not last of expanding, the board vibrations can loose the problem of taking off.

2. The hydraulic motor works to make the two groups of driving gears rotate, so as to drive the meshed driven gears to rotate, so as to make the cutterheads fixedly connected with the driven gears rotate, the hydraulic cylinder works to move leftwards integrally to make the push-pull lever drive the guide rail shaft to move leftwards, so as to drive the cutterheads to move leftwards integrally and slowly, namely, the cutting knives of the cutterheads to move leftwards slowly, so as to cut the expanded pipelines.

Drawings

Fig. 1 is an overall sectional view of the present invention.

In the figure:

1. expanding the hydraulic cylinder body; 101. an end cap; 102. a piston; 103. expanding blocks; 104. a beveled pipeline; 105. a sloping block; 106. a piston rod; 107. a jaw shield; 108. a shoulder screw; 2. a dust ring baffle plate; 3. a dust ring; 4. locking the nut; 5. sliding the copper sleeve; 6. a main shaft; 7. a tapered roller bearing; 8. a cutter head; 9. a sliding sleeve; 10. a driving gear; 11. a driven gear; 12. locking screws; 13. a frame; 14. a hydraulic motor; 15. a guide rail shaft; 16. a push-pull lever; 17. and a hydraulic cylinder.

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, the present invention provides a technical solution:

a novel internal expansion beveling machine comprises an expansion hydraulic cylinder body 1, wherein a cylinder opening is arranged at the right end of the expansion hydraulic cylinder body 1, and the inner thread of the cylinder opening is connected with an end cover 101, the interior of the expansion hydraulic cylinder body 1 is connected with a piston 102 in a sliding way, the left end of the expansion hydraulic cylinder body 1 extends into the inclined block 105 and is connected in a propping and sliding way, the outer side wall of the inclined block 105 is connected with a plurality of groups of expansion blocks 103 through bolt threads, the left end face of the oblique block 105 is connected with a plurality of groups of clamping jaw baffles 107 in a sliding manner, each group of clamping jaw baffles 107 is provided with a group of rectangular notches, each group of rectangular notches extends into and is connected with a group of shaft shoulder screws 108 in a sliding manner, the shaft shoulder screw 108 extends into the left side wall of the sloping block 105 and is in threaded connection with the left side wall, the piston rod 106 is fixedly connected with the left end of the piston 102, the piston rod 106 penetrates through the extending inclined block 105 and is connected with the extending inclined block in a sliding mode, and the inclined block 105 integrally extends into the beveled pipeline 104 and is movably connected with the beveled pipeline.

As an embodiment of the invention, as shown in fig. 1, the right side of the expansion hydraulic cylinder 1 penetrates through and extends into and is fixedly connected with a main shaft 6, a hollow oil pipe penetrates through and is fixedly connected with the inside of the main shaft 6, a dust ring blocking piece 2 is slidably connected with the outside of the main shaft 6, a dust ring 3 is fixedly connected with the outside of the dust ring blocking piece 2, a locking nut 4 penetrates through and is connected with the dust ring 3, the dust ring 3 is connected with a sliding copper sleeve 5 through the locking nut 4, the sliding copper sleeve 5 is fixedly connected with a sliding sleeve 9, a tapered roller bearing 7 is fixedly connected with the sliding sleeve 9, a cutter head 8 is fixedly connected with the outside of the sliding sleeve 9, the right end of the cutter head 8 penetrates through and extends into and is slidably connected with a frame 13, a hydraulic motor 14 is fixedly connected with the inside of the frame 13, a driving gear 10 is fixedly connected with the hydraulic motor 14, the driving gear 10 is meshed with a driven gear 11, the driven gear 11 is fixedly connected to the side face of the cutter head 8, a plurality of groups of locking screws 12 are in threaded connection with the right end face of the cutter head 8, two groups of guide rail shafts 15 are in threaded connection with the right end face of the cutter head 8 through the locking screws 12, a push-pull lever 16 is fixedly connected between one ends, far away from the locking screws 12, of the two groups of guide rail shafts 15, and the push-pull lever 16 is fixedly connected to a hydraulic cylinder 17.

In operation, hydraulic motor 14 work makes two sets of driving gears 10 rotate, thereby drive engaged driven gear 11 and rotate, thereby make driven gear 11 fixed connection's blade disc 8 rotate, pneumatic cylinder 17 work whole moves left and makes push-and-pull lever 16 drive guide rail axle 15 move left, thereby drive blade disc 8 whole slow move left, the cutting sword of blade disc 8 pivoted slowly moves left promptly, thereby cut the pipeline that has expanded tightly, synthesize the aforesaid, this device becomes simple with complicated drive mechanism, the tight stability of expanding does not loosen and takes off, work efficiency is showing and is improving, and low in manufacturing cost, it is whole stable, long service life, fortune dimension is with low costs.

The working principle is as follows: during operation, the inner diameter of the bevel pipeline is measured, the required expansion block 103 is selected according to an expansion chart and is fastened on the side face of the bevel block 105 through a bolt, the expansion block 103 and the bolt are in threaded connection, so that pipelines with different pipeline diameters can be expanded conveniently, a proper cutting knife is selected according to a cutter chart and is movably connected to the cutter head 8, the shaft shoulder screw 108 is screwed, a rectangular slotted hole formed in the clamping jaw baffle 107 can slide relative to the shaft shoulder screw 108 when being extruded, the bevel block 105 is inserted into the bevel pipeline 104, the expansion hydraulic cylinder body 1 works and moves leftwards at the moment, the bevel block 105 moves outwards under the extrusion thrust of the expansion hydraulic cylinder body 1, so that the expansion block 103 on the bevel block 105 expands the inner wall of the bevel pipeline 104, and by adopting the expansion mode, the problems that the machine has no continuous force and the machine table can loosen due to expansion and vibration are solved, due to the property of the hydraulic expansion hydraulic cylinder body 1, the hydraulic expansion has continuous expansion force and cannot loosen, redundant space in the inclined block 105 is effectively utilized, the originally huge mechanism is compacted, meanwhile, a complex connecting mechanism is omitted, a large amount of cost is saved, and the design of movably connecting the cutting knife and the cutter head 8 facilitates timely replacement of the cutting knife on the worn cutter head 8;

the hydraulic motor 14 works to rotate the two groups of driving gears 10, so as to drive the meshed driven gear 11 to rotate, so as to drive the cutter head 8 fixedly connected with the driven gear 11 to rotate, the hydraulic cylinder 17 works to move leftwards integrally, so that the push-pull lever 16 drives the guide rail shaft 15 to move leftwards, so as to drive the cutter head 8 to move leftwards integrally and slowly, namely, a cutting knife rotating by the cutter head 8 moves leftwards slowly, so as to cut a pipeline which is already expanded, and by combining the above steps, the device simplifies a complex transmission mechanism, ensures stable expansion and no loosening, remarkably improves the working efficiency, and has low manufacturing cost, stable integrity, long service life and low operation and maintenance cost;

the apparatus can be operated in areas without a power supply, mountainous areas, and the like by driving the expansion cylinder 1, the hydraulic motor 14, and the hydraulic cylinder 17, and can be operated in areas with a power supply by replacing the hydraulic motor 14 with a motor and the hydraulic cylinder 17 with a servo electric cylinder.

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 novel interior expanding beveling machine, includes tight pneumatic cylinder body (1) that expands, its characterized in that: a cylinder opening is arranged at the right end of the expansion hydraulic cylinder body (1), an end cover (101) is connected with the cylinder opening in an internal thread manner, a piston (102) is connected with the interior of the expansion hydraulic cylinder body (1) in a sliding manner, and the left end of the expansion hydraulic cylinder body (1) extends into the inclined block (105) and is connected in an abutting sliding way, the outer side wall of the inclined block (105) is connected with a plurality of groups of expansion blocks (103) through bolt threads, the left end face of the sloping block (105) is connected with a plurality of groups of clamping jaw baffles (107) in a sliding manner, each group of clamping jaw baffles (107) is provided with a group of rectangular notches, each group of rectangular notches extends into and is connected with a group of shaft shoulder screws (108) in a sliding manner, the shaft shoulder screw (108) extends into the left side wall of the inclined block (105) and is in threaded connection, the left end of the piston (102) is fixedly connected with a piston rod (106), the piston rod (106) penetrates through the extending inclined block (105) and is connected in a sliding manner, the inclined block (105) integrally extends into the beveled pipeline (104) and is movably connected with the beveled pipeline.

2. The novel internal expanding beveling machine of claim 1 wherein: the right side of the expansion hydraulic cylinder (1) is penetrated through and stretched into and fixedly connected with a main shaft (6), a hollow oil pipe is fixedly connected in the main shaft (6) in a penetrating manner, a dustproof ring separation blade (2) is connected to the outer side of the main shaft (6) in a sliding manner, a dustproof ring (3) is fixedly connected to the outer side of the dustproof ring separation blade (2), a locking nut (4) is connected to the dustproof ring (3) in a penetrating manner, the dustproof ring (3) is connected to a sliding copper sleeve (5) in a threaded manner through the locking nut (4), the sliding copper sleeve (5) is fixedly connected to a sliding sleeve (9), a conical roller bearing (7) is fixedly connected to the sliding sleeve (9), a cutter head (8) is fixedly connected to the outer side of the sliding sleeve (9), a rack (13) is connected to the right end of the cutter head (8) in a penetrating manner and slidably connected with the rack (13), and a hydraulic motor (14) is fixedly connected to the interior of the rack (13), the hydraulic control device is characterized in that a driving gear (10) is fixedly connected to the hydraulic motor (14), the driving gear (10) is meshed with a driven gear (11), the driven gear (11) is fixedly connected to the side face of the cutter head (8), a plurality of groups of locking screws (12) are in threaded connection with the right end face of the cutter head (8), two groups of guide rail shafts (15) are in threaded connection with the right end face of the cutter head (8) through the locking screws (12), a push-pull lever (16) is fixedly connected between one ends, far away from the locking screws (12), of the guide rail shafts (15), and the push-pull lever (16) is fixedly connected to a hydraulic cylinder (17).