CN203197366U - Pipe cutting device - Google Patents

Abstract

The utility model discloses a pipeline cutting device, which comprises a bottom plate, a cutting machine fixing seat, a connecting body for connecting the bottom plate and the cutting machine fixing seat, and a guide rail. The cutting machine fixing seat is provided with a cutting machine. A radial lead screw mechanism that can control the radial movement of the connecting body along the pipeline is provided between the connecting body and the bottom plate. The bottom plate is provided with a sprocket driven by a sprocket motor, and the sprocket is provided with a chain. The chain is wound on the pipeline, an axial screw mechanism that can control the axial movement of the cutting machine fixing base along the pipeline is provided between the cutting machine fixing seat and the connecting body, and the bottom plate is provided with several Guide wheels, the guide rails are provided with guide grooves matching the guide wheels. The utility model aims to provide a pipe cutting device with high cutting precision.

Description

A pipe cutting device

technical field

The utility model belongs to the field of pipe material cutting, in particular to a pipe cutting device.

Background technique

At present, in the cutting of pipes in the prior art, for pipes with smaller diameters, usually the pipes are clamped and fixed, and then directly cut with a cutting machine. However, for pipes with larger diameters, the use of ordinary cutting machines obviously cannot meet the cutting requirements. Therefore, in actual production, workers usually manually operate equipment such as oxyacetylene cutters to trim the edges, so the edge trimming accuracy is low, and it is difficult to ensure that the edges of the cut pipes are smooth.

Chinese Patent Publication No.: CN 102463385A, published on May 23, 2012, discloses a steel pipe manual cutting machine, which is characterized in that: it includes a steel pipe connected with a rack and pinion structure, and a rotary cutter is arranged below the steel pipe, so The rotary cutter is connected with a pinion through a rotating shaft, and the pinion is meshed with a large gear, and a rotary handle is arranged on the large gear. The rotation of the rotary cutter is realized by the hand handle, and the movement of the steel pipe relative to the rotary cutter can be realized by rotating the rack and pinion structure. When using this cutting machine for pipe cutting, the worker needs to hold the tool all the time to cut around the circumference of the pipe. The labor intensity of the worker is very high, and the hand-held cutting is easy to swing, it is difficult to coincide with the predetermined track, and the flatness of the pipe edge is poor.

Utility model content

The utility model aims at overcoming the disadvantage of low cutting precision of the hand-held cutting equipment in the prior art when cutting pipelines, and provides a pipeline cutting device with high precision for cutting pipelines.

In order to achieve the above object, the utility model adopts the following technical solutions:

A pipeline cutting device of the utility model comprises a bottom plate, a cutting machine fixing seat, a connecting body for connecting the bottom plate and the cutting machine fixing seat, and a guide rail. The cutting machine fixing seat is provided with a cutting machine, and the connecting A radial lead screw mechanism that can control the radial movement of the connecting body along the pipeline is arranged between the body and the bottom plate. The bottom plate is provided with a sprocket driven by a sprocket motor, and a chain is provided on the sprocket. The above-mentioned chain is wound on the pipeline, and an axial screw mechanism that can control the axial movement of the cutting machine fixed seat along the pipeline is arranged between the said cutting machine fixing seat and the connecting body. Wheels, the guide rails are provided with guide grooves that match the guide wheels. The radial screw mechanism between the bottom plate and the connecting body can be used to control the radial movement of the connecting body toward the pipe, that is, the radial feed depth of the cutting machine, and the axial screw mechanism between the cutting machine fixing seat and the connecting body It is used to fine-tune and adjust the position of the cutting machine in the axial direction of the pipeline. The sprocket and the pipe are connected by a chain, and the guide wheel connects the bottom plate with the guide rail. The guide rail determines the movement direction of the cutting machine. When the sprocket motor drives the sprocket to rotate, the friction between the chain and the pipe body is relatively large. , the chain will not rotate relative to the pipe body, so the cutting device will rotate around the pipe under the reaction force from the chain. During the rotation process, the cutting machine cuts the pipe gradually. According to the thickness of the pipe wall, the feed rate is adjusted through the radial screw mechanism, and the cutting can be completed after one or several turns. During the cutting process, workers do not need to hold the cutting device to carry out the cutting operation, and only need to adjust the feed rate to complete the cutting of the pipe, so the labor intensity is greatly reduced. At the same time, the device moves along the guide groove on the guide rail through the guide wheel, and through the tension of the chain, the cutting machine is not easy to swing, so the edge of the cut pipe is relatively smooth, and the cutting accuracy is also high.

As a preference, the radial screw mechanism includes a radial screw and a radial screw nut fixed to the connecting body, a radial screw positioning seat is provided on the bottom plate, and the radial screw nut The two ends are respectively positioned in the radial screw positioning seat through rolling bearings. When the radial screw is rotated, the radial screw nut will move along the axis of the radial screw, thereby driving the connecting body to move and changing the radial feed of the cutting machine.

Preferably, the sprocket is connected with a sprocket cylinder capable of pushing the sprocket to move radially along the pipe, and the bottom plate is provided with a sprocket limiting hole matching the direction of movement of the sprocket. The piston rod of the sprocket cylinder can push the sprocket to move in the sprocket limit hole, and the chain can be installed on the sprocket smoothly by adjusting the position of the sprocket.

As a preference, the base plate is provided with several pinch wheels and pinch wheel cylinders that can push the pinch wheels to move, and the base plate is provided with pinch wheel limit holes that match the direction of movement of the pinch wheels . After the chain is installed on the sprocket, start the clamping wheel cylinder, the clamping wheel can clamp the chain, and place the chain to loosen.

Preferably, the cross-section of the radial screw positioning seat is trapezoidal, and the connecting body is provided with a chute matching the radial screw positioning seat. In this way, it is ensured that the connecting body will not be separated from the bottom plate when sliding, and the transmission of the radial screw rod is stable.

Preferably, the end of the radial screw rod away from the cutting machine is connected with a radial screw handle. By shaking the radial screw handle, the radial screw can be driven to rotate, thereby adjusting the radial feed of the cutting machine.

Therefore, the utility model has the following beneficial effects: (1) the cutting machine is guided by the guide rail, the pipe cutting surface is relatively smooth, and the cutting precision is high; (2) the labor intensity of the operator is reduced.

Description of drawings

Fig. 1 is a kind of structural representation of the utility model;

Fig. 2 is the top view of the utility model;

Fig. 3 is a cross-sectional view at A-A in Fig. 1 .

In the figure, the bottom plate 1, the radial screw positioning seat 1a, the sprocket motor 2, the radial screw 3, the radial screw handle 4, the connecting body 5, the radial screw nut 5a, the cutting machine fixing seat 6, the shaft Screw nut 6a, cutting machine 7, sprocket cylinder 8, pinch wheel 9, pinch wheel cylinder 10, sprocket 11, guide wheel 12, axial screw mandrel 13.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment, the utility model is further described.

In the embodiment shown in Figures 1 and 2, a pipeline cutting device includes a base plate 1, a cutting machine fixing seat 6, a connecting body 5 for connecting the base plate and the cutting machine fixing base, and guide rails surrounding the outside of the pipeline, A cutting machine 7 is arranged on the fixing seat of the cutting machine, and a radial screw mechanism is arranged between the connecting body and the bottom plate for controlling the radial movement of the connecting body along the pipeline. A sprocket 11 driven by a sprocket motor 3 is arranged on the bottom plate, and a chain is arranged on the sprocket, and the chain is wound on the outer wall of the pipeline. The base plate is provided with two guide wheels 12, and the guide rail is provided with guide grooves matched with the guide wheels. The radial screw mechanism includes a radial screw 3 and a radial screw nut 5a integrated with the connecting body. The radial screw positioning seat 1a is arranged on the bottom plate, and the two ends of the radial screw are respectively positioned on the radial screw by rolling bearings. In the rod positioning seat. The sprocket is connected with a sprocket cylinder 8 that can push the sprocket to move radially along the pipeline, and the bottom plate is provided with a sprocket limiting hole that matches the direction of movement of the sprocket. An axial screw mechanism that can control the axial movement of the cutting machine fixing seat along the pipeline is provided between the cutting machine fixing seat and the connecting body. The axial screw mechanism includes an axial screw rod 13 and an axial screw integrated with the cutting machine fixing seat. The screw nut is provided with an axial screw positioning seat on the connecting body, and the two ends of the axial screw are respectively positioned in the axial screw positioning seat through rolling bearings. The base plate is provided with two clamping wheels 9 and the clamping wheel cylinder 10 which can promote the movement of the clamping wheels, and the base plate is provided with a clamping wheel position-limiting hole matched with the direction of movement of the clamping wheels. As shown in FIG. 3 , the cross section of the radial screw positioning seat is trapezoidal, and the connecting body is provided with a chute matching the screw positioning seat. The end of the radial screw rod far away from the cutting machine is connected with a radial screw handle 4 , while the end of the axial screw rod is connected with an axial screw handle.

Before the actual cutting, first fix the guide rail on the pipe, the guide wheel on the bottom plate is snapped into the guide groove of the guide rail, the sprocket and the pipe are connected through the chain, and the chain is adjusted by the sprocket cylinder and the clamping wheel cylinder The tightness makes the chain not slide relative to the outer wall of the pipe when the sprocket rotates, and ensures that the cutting machine can rotate around the pipe smoothly. Then the axial cutting position of the cutting machine can be fine-tuned through the axial screw mechanism. After the adjustment is completed, the cutting machine can be turned on, and the radial screw handle can be turned at the same time to make the cutting machine feed radially along the pipe, and then the chain can be moved The wheel motor is turned on, and the cutting machine turns around the pipe to cut. If the pipe wall thickness is small, the cutting machine can go around a circle; if the pipe wall is thick, multiple feedings are required to complete the cutting.

Claims (7)

1. pipe cutting apparatus, it is characterized in that, comprise base plate (1), cutting machine holder (6), the connector (5) and the guide rail that are used for connecting bottom board (1) and cutting machine holder (6), described cutting machine holder (6) is provided with cutting machine (7), be provided with between described connector (5) and the base plate (1) and can control connector along the radially screw mechanism of pipeline radial motion, described base plate (1) is provided with the sprocket wheel (11) that drives by chain wheel motor (2), described sprocket wheel (11) is provided with chain, described chain solderless wrapped connection is on pipeline outer wall, described base plate (1) is provided with some guide wheels (12), and described guide rail is provided with the gathering sill suitable with guide wheel (12).

2. a kind of pipe cutting apparatus according to claim 1, it is characterized in that, described radially screw mechanism comprise screw mandrel (3) radially and with the radially feed screw nut (5a) of connector (5) one, described base plate (1) is provided with radially screw mandrel positioning seat (1a), and described radially screw mandrel (3) two ends are positioned at radially in the screw mandrel positioning seat (1a) by rolling bearing respectively.

3. a kind of pipe cutting apparatus according to claim 1, it is characterized in that, described sprocket wheel (11) is connected with and can promotes sprocket wheel (11) along the sprocket wheel cylinder (8) of pipeline radial motion, and described base plate (1) is provided with the sprocket wheel spacing hole that matches with sprocket wheel (11) direction of motion.

4. according to claim 1 and 2 or 3 described a kind of pipe cutting apparatus, it is characterized in that, be provided with between described cutting machine holder (6) and the connector (5) and can control the axial screw mechanism that cutting machine holder (6) moves along pipeline axial, described axial screw mechanism comprise axial screw mandrel (13) and with the axial feed screw nut of cutting machine holder one, described connector (5) is provided with axial screw mandrel positioning seat, and described axial screw mandrel two ends are positioned in the axial screw mandrel positioning seat by rolling bearing respectively.

5. according to claim 1 and 2 or 3 described a kind of pipe cutting apparatus, it is characterized in that, the pinch wheels cylinder (10) that described base plate (1) is provided with some pinch wheels (9) and can promotes pinch wheels (9) motion, described base plate (1) are provided with the pinch wheels spacing hole that matches with pinch wheels (9) fortune merit direction.

6. a kind of pipe cutting apparatus according to claim 2 is characterized in that, the cross section of described radially screw mandrel positioning seat (1a) is trapezoidal, and described connector (5) is provided with the chute suitable with screw mandrel positioning seat (1a) radially.

7. according to claim 2 or 6 described a kind of pipe cutting apparatus, it is characterized in that, described radially screw mandrel (3) is connected with radially screw handle (4) away from an end of cutting machine (7).

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