CN112077913A

CN112077913A - Cutting feed control device and pipeline groove cutting device

Info

Publication number: CN112077913A
Application number: CN202010861706.2A
Authority: CN
Inventors: 姜洋; 鹿松; 汪金海; 秦锋; 陈伟星; 安文斌; 陈诗瑶
Original assignee: Sanmen Nuclear Power Co Ltd
Current assignee: Sanmen Nuclear Power Co Ltd
Priority date: 2020-08-25
Filing date: 2020-08-25
Publication date: 2020-12-15

Abstract

The invention relates to the field of mechanical equipment, in particular to a high-precision control design of cutting equipment. The invention is realized by the following technical scheme: a cutting feed control device comprises a main frame, a sliding ruler, an adjusting piece and a positioning piece, wherein the sliding ruler is connected with the main frame in a sliding mode, the adjusting piece is used for adjusting the position of the sliding ruler relative to the main frame, and the positioning piece is installed on the adjusting piece. The invention aims to provide a cutting feed control device and a pipeline groove cutting device, which improve the controllability in the cutting process and further increase the cutting speed and the cutting effect by strictly controlling the automatic cutting process amount in the cutting process.

Description

Cutting feed control device and pipeline groove cutting device

Technical Field

The invention relates to the field of mechanical equipment, in particular to a high-precision control design of cutting equipment.

Background

In large industrial environments, such as nuclear power plants, a large number of pipelines are used. The pipe may need to be cut when it is prefabricated, used, repaired, and replaced. In the traditional operation process, a worker carries out manual cutting, however, due to the fact that the caliber of a pipeline used by the nuclear power station is large, the manual cutting of the worker has the problems of high manual operation strength, irregular groove cutting, low efficiency and the like.

For this reason, an automatic cutting tool is also used, such as a pipe cutting machine disclosed in patent document CN201320385235.8, which includes a support provided with a clamping device for fixing a pipe and a cutter for cutting, and a user uses the cutting machine to cut the pipe.

However, in a quoted scenario, such as nuclear power plant pipelines, pipeline cutting still employs the stepwise steps of automated cutting followed by manual cutting by a worker. The reason is that after the in-service pipeline is installed, certain stress exists inside the pipeline, when the pipeline is cut to a certain depth, the pipeline is broken nearby a cut due to the influence of the stress, so that the crack is irregular easily, and corresponding potential safety hazards also exist. Therefore, in actual operation, the in-service pipeline is still cut by a cutting machine until a small amount of wall thickness remains, and then is cut by a tool such as a manual saw blade.

Because the two-section type cutting scheme of firstly automatically cutting and then manually cutting is used, the conditions of low precision, low efficiency and poor control degree still exist, and the cutting efficiency and the cutting effect are influenced.

Disclosure of Invention

The invention aims to provide a cutting feed control device and a pipeline groove cutting device, which improve the controllability in the cutting process and further increase the cutting speed and the cutting effect by strictly controlling the automatic cutting process amount in the cutting process.

The technical purpose of the invention is realized by the following technical scheme: a cutting feed control device comprises a main frame, a sliding ruler, an adjusting piece and a positioning piece, wherein the sliding ruler is connected with the main frame in a sliding mode, the adjusting piece is used for adjusting the position of the sliding ruler relative to the main frame, and the positioning piece is installed on the adjusting piece.

Preferably, the adjusting member includes a gear, and the sliding rule includes a rack engaged with the gear.

Preferably, the adjusting member includes a main box mounted on the main frame, an adjusting wheel, and a transmission shaft connected to the adjusting wheel, the transmission shaft is connected to the gear, and the gear is located in an inner cavity of the main box.

Preferably, the sliding ruler further comprises two baffles, the two baffles are mounted on the main frame, and grooves for avoiding the sliding ruler are formed in the baffles.

Preferably, the sliding ruler is provided with a needle groove, and the positioning needle is mounted on the needle groove.

Preferably, a retention strip is convexly arranged on one surface of the sliding ruler, which is close to the main frame.

Preferably, the main frame includes a knife mounting plate and a slide rule mounting plate, the knife mounting plate is perpendicular to an extending direction of the slide rule mounting plate, and the slide rule is mounted on the slide rule mounting plate.

Preferably, the positioning member includes an extension plate, an extension direction of the extension plate is perpendicular to the slide rule mounting plate and opposite to an extension direction of the knife mounting plate, and a surface of the extension plate away from the main frame is an inclined surface.

Preferably, the present invention further includes a reinforcing inclined plate connecting the blade mounting plate and the slide rule mounting plate, and the reinforcing inclined plate is provided with a plurality of arc-shaped stabilizing grooves.

The invention preferably comprises a cutter frame and a cutter, wherein the cutter is connected with the main frame, and the cutter frame is connected with the positioning piece.

In conclusion, the invention has the following beneficial effects:

1. the feed distance of the cutting knife is accurately controlled, so that the thickness of the cut pipeline wall is controlled.

2. The feed amount is not too short, and the phenomenon that the follow-up manual cutting workload is huge due to excessive residual wall thickness is avoided. The feed amount is not too long, and foreign matters are prevented from entering the pipeline due to excessive cutting of a part of the pipeline.

3. The length of the sliding ruler is adjusted by rotating the adjusting wheel, so that the feed amount is controlled, the adjustment is convenient and fast, and the operability is strong.

4. The baffle can protect the periphery of sliding ruler, also can provide the direction for sliding ruler's slip, and can realize the numerical value reading that advances of feed volume through the cooperation with the pilot pin.

Description of the drawings:

FIG. 1 is a schematic diagram of example 1;

FIG. 2 is a schematic view of a positioning member and an adjustment member;

fig. 3 is a schematic view of the flapper and slide rule.

In the figure: 1. positioning piece, 11, extension plate, 111, inclined plane, 2, sliding ruler, 21, rack, 22, retention strip, 23, needle groove, 3, main frame, 31, knife mounting plate, 32, reinforcing inclined plate, 321, stabilizing groove, 33, sliding ruler mounting plate, 4, baffle, 41, notch, 5, adjusting piece, 51, main box, 52, adjusting wheel, 53, transmission shaft, 6 and positioning needle.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Embodiment 1, as shown in fig. 1, a cut-in amount control device includes a main frame 3, and the main frame 3 is vertically divided, and specifically includes two members, a blade mounting plate 31 and a slide rule mounting plate 33, and the extending directions of the two members are perpendicular to each other. The reinforcing inclined plate 32 is commonly connected with the knife mounting plate 31 and the slide rule mounting plate 33, and the function of the reinforcing inclined plate is to increase the structural strength and stability of the knife mounting plate and the slide rule mounting plate, so that the main frame 3 can adapt to strong vibration generated in the subsequent pipeline cutting process.

As shown in fig. 1 and 3, the slider 2 is slidably connected to the slider mounting plate 33. The surface of the sliding rule mounting plate 33 can be provided with a corresponding groove body, and the retention strip 22 on the back of the sliding rule 2 enters the groove body and slides in the groove body. And two baffles 4 are all provided with notch 41, and two baffles 4 are fixedly mounted on sliding ruler mounting plate 33 and are located at the positions of two ends of sliding ruler 2, so that the stability of sliding ruler 2 is enhanced.

As shown in fig. 1, 2 and 3, a rack 21 is provided on one side surface of the slide rule 2. The slider mounting plate 33 is mounted with the adjuster 5. The adjusting member 5 comprises a main box 51, and an adjusting wheel 52 is arranged on the main box 51. The user rotates the adjusting wheel 52, the adjusting wheel 52 drives the gear (not shown in the figure) to rotate through the transmission shaft 53, the gear is meshed with the rack 21, and the rack 21 is lifted relative to the main frame 3 in fig. 1.

One end of the sliding ruler 2 is connected with a positioning piece 1, and the positioning piece 1 can be connected with the sliding ruler 2 through a bolt and other parts. The spacer 1 comprises an extension plate 11 which extends in the same direction perpendicular to the slide mounting plate 33 but opposite to the knife mounting plate 31. As shown in fig. 1, the blade mounting plate 31 extends in the right direction in the drawing, and the extension plate 11 needs to extend in the left direction in the drawing.

Such a counter-extended design has three purposes. Purpose one, knife mounting panel 31 is the installation cutting knife in practical application, and setting element 1 here need connect or support the knife rest, and setting element 1 needs certain connection or conflict region, and cutting knife and cutting area can be dodged in reverse extension, provides bigger space for the cutting. The second purpose is that the design is beneficial to the observation of an operator in the cutting process and provides a better observation visual field. And thirdly, the reverse extension is beneficial to the stability of the gravity center of the part in the cutting process.

As shown in fig. 1, the reinforcing sloping plate 32 is specially designed, and a portion of the reinforcing sloping plate 32 close to the knife mounting plate 31 is provided with a plurality of stabilizing grooves 321, and the stabilizing grooves 321 are crescent-arc-shaped. In practical use, the knife mounting plate 31 is provided with mounting holes, and the number and positions of the stabilizing grooves 321 are matched with the mounting holes. The stabilizing groove 321 has two functions, namely, a certain vibration can be generated in the cutting process, and the stabilizing groove 321 generates physical deformation compensation for the vibration by utilizing self arc deformation, so that the stabilizing groove has certain buffering and stability increasing functions. The second function is that the stabilizing groove 321 can provide a certain construction space for the tool when the fixing member is installed at the position of the installation hole.

As shown in fig. 3, a needle groove 23 is opened on the surface of the slide rule 2, and the user mounts the positioning needle 6 at a certain position in the needle groove 23. The baffle 4 can be marked with scales or reference parts, and a user can obtain the sliding distance of the sliding ruler 2 through the movement of the positioning needle 6 when adjusting the adjusting wheel 52, so as to calculate the cutting feed.

The utility model provides a pipeline groove cutting device, contains the cutting advance controlling means that the above-mentioned said, still contains knife rest and cutting knife, and wherein, the cutting knife is connected with body frame 3, and is concrete, and the cutting knife is connected with sword mounting panel 31. And the tool holder is connected with the positioning piece 1.

In the formal cutting process, the technical scheme can be used for accurately controlling the feed distance of the cutting knife, so that the thickness of the cut pipeline wall is controlled. Through the experiment and research of the inventor, the unified control distance and the accurate control distance of the cutting knife have obvious improvement on the cutting efficiency and the cutting effect. The feed amount is not too short, and the phenomenon that the follow-up manual cutting workload is huge due to excessive residual wall thickness is avoided. The feed amount is not too long, and foreign matters are prevented from entering the pipeline due to excessive cutting of a part of the pipeline.

Claims

1. A cutting feed control device comprises a main frame (3), and is characterized in that: the adjustable sliding ruler comprises a main frame (3), a sliding ruler (2), an adjusting piece (5) and a positioning piece (1), wherein the sliding ruler (2) is connected with the main frame (3) in a sliding mode, the adjusting piece (5) is used for adjusting the position of the sliding ruler (2) relative to the main frame (3), and the positioning piece (1) is installed on the adjusting piece (5).

2. A cut-in amount control device according to claim 1, characterized in that: the adjusting piece (5) comprises a gear, and the sliding ruler (2) comprises a rack (21) meshed with the gear.

3. A cut-in amount control device according to claim 2, wherein: the adjusting piece (5) comprises a main box (51) arranged on the main frame (3), an adjusting wheel (52) and a transmission shaft (53) connected with the adjusting wheel (52), the transmission shaft (53) is connected with the gear, and the gear is positioned in an inner cavity of the main box (51).

4. A cut-in amount control device according to claim 1, characterized in that: still contain baffle (4), baffle (4) are two, all install on body frame (3), offer on baffle (4) and be used for dodging scarce groove (41) of sliding ruler (2).

5. A cut-in amount control device according to claim 1, characterized in that: a needle groove (23) is formed in the sliding ruler (2), and the positioning needle (6) is installed on the needle groove (23).

6. A cut-in amount control device according to claim 5, wherein: a retention strip (22) is convexly arranged on one surface of the sliding ruler (2) close to the main frame (3).

7. A cut-in amount control apparatus according to any one of claims 1 to 6, wherein: the body frame (3) contains sword mounting panel (31) and slide rule mounting panel (33), sword mounting panel (31) with the extending direction of slide rule mounting panel (33) is perpendicular, slide rule (2) are installed on slide rule mounting panel (33).

8. A cut-in amount control device as set forth in claim 7, wherein: setting element (1) contains extension board (11), the extending direction of extension board (11) with slide rule mounting panel (33) perpendicular and with the extending direction of sword mounting panel (31) is reverse, extension board (11) are kept away from the one side of body frame (3) is inclined plane (111).

9. A cut-in amount control device as set forth in claim 7, wherein: still contain the connection sword mounting panel (31) with consolidate swash plate (32) of slide rule mounting panel (33), it is a plurality of circular-arc stability grooves (321) to have seted up on consolidating swash plate (32).

10. A pipe groove cutting apparatus comprising the cut-in amount control apparatus according to any one of claims 1 to 9, characterized in that: comprises a knife rest and a cutting knife, the cutting knife is connected with the main frame (3), and the knife rest is connected with the positioning piece (1).