Suspension type reciprocating sawing machine

Abstract

A suspension type reciprocating sawing machine is provided with a moving trolley, a first stabilizing clamp set and a second stabilizing clamp set are further arranged on the moving trolley, a double-unit sawing device is further arranged between the first stabilizing clamp set and the second stabilizing clamp set, and a first feeding sawing machine and a second feeding sawing machine are further arranged on the double-unit sawing device. A hole is further formed in the center of the moving trolley, the special-shaped hollow pipe penetrates through the hole and is fixed through clamping of the first stabilizing clamp set and the second stabilizing clamp set, and saw blades are arranged on the first feeding sawing machine and the second feeding sawing machine. According to the technical scheme, a simple mechanical structure is adopted to be matched with computer programming to achieve computer control, and the saw blade is driven to achieve accurate profiling sawing. The suspended reciprocating sawing machine has the advantages that the saw blade can be driven to move in the outline direction of the special-shaped hollow pipe, and the saw blade can be driven to move in the outline direction of the special-shaped hollow pipe, and is matched with the special-shaped hollow pipe to conduct profiling sawing on the special-shaped hollow pipe; according to the technical scheme, cost is saved, and precision and efficiency are improved.

Description

Technical Field

[0001] This invention relates to the field of automatic cutting technology for continuous tubular materials in welded pipe production lines, specifically to a suspended reciprocating sawing machine applicable to various pipe diameters. Background Technology

[0002] With the diversification of social development, various sub-sectors of products have emerged in today's high-frequency welded pipe production lines. For example, there are welded pipe production lines that can process various specifications and have a wide range of applications, including round pipes, square pipes, and irregularly shaped pipes. Such new welded pipe production lines typically require matching welded pipe sawing machines to meet the processing needs of the production line and cut the pipe materials as needed. However, common sawing machines are usually only suitable for small-scale sawing work with limited size variations, or only for round or square pipes. A sawing machine capable of sawing larger specifications and applicable to both round, square, and irregularly shaped pipes has become the new favorite in this industry. Furthermore, conventional sawing machines are floor-mounted, and during processing, stains or debris often enter their sliding tracks, shortening their lifespan. Therefore, it has become an inevitable trend for those skilled in the art to develop a suspended reciprocating sawing machine that uses computer-controlled automatic saw blades to achieve precise contour sawing and avoids falling stains and debris. Summary of the Invention

[0003] This embodiment provides a suspended reciprocating sawing machine that can avoid falling dirt and debris, is suitable for large-diameter pipes, and can process various specifications in a wide range of welded pipe production lines. It achieves precise contour sawing by using a simple mechanical structure combined with computer programming to realize computer control and drive the saw blade. This technical solution has a simple structure, is easy to maintain and repair, has a wide range of applications, saves costs, and improves accuracy and efficiency.

[0004] Specifically, on one hand, a suspended reciprocating sawing machine is used to continuously saw large-diameter irregularly shaped hollow tubes a of various specifications online. It includes a moving carriage c, which is suspended from a vertically arranged wall d via a linear slide rail. The moving carriage c also includes a first stabilizing clamp group q1 and a second stabilizing clamp group q2. A dual-unit sawing device j is located between the first stabilizing clamp group q1 and the second stabilizing clamp group q2. The dual-unit sawing device j also includes a first feed sawing machine j1 and a second feed sawing machine j2. The moving carriage c has a hole k at its center, through which the irregularly shaped hollow tube a passes and is fixed by the clamping of the first stabilizing clamp group q1 and the second stabilizing clamp group q2. Both the first feed sawing machine j1 and the second feed sawing machine j2 are equipped with saw blades jp, which can move along the outline of the irregularly shaped hollow tube a and cooperate to achieve contour sawing of the irregularly shaped hollow tube a.

[0005] According to one aspect of a specific embodiment of the present invention, the first feed sawing machine j1 is interconnected with the moving vehicle c through a first displacement device w1. The first displacement device w1 is further provided with a lateral displacement device and a vertical displacement device. The first feed sawing machine j1 can drive the saw blade jp mounted thereon to make contour-following movements on a plane perpendicular to the feed direction of the irregular hollow tube a under the movement action of the first displacement device w1.

[0006] According to one aspect of a specific embodiment of the present invention, the second feed sawing machine j2 is interconnected with the moving carriage c through a second displacement device w2. The second displacement device w2 is further provided with a lateral displacement device and a vertical displacement device. Under the movement action of the second displacement device w2, the second feed sawing machine j2 can drive the saw blade jp mounted thereon to make contour-following movements on a plane perpendicular to the feed direction of the irregular hollow tube a.

[0007] According to one aspect of a specific embodiment of the present invention, the saw blades jp disposed on the first feed saw j1 and the second feed saw j2, under the movement action of the first displacement device w1 and the second displacement device w2, combine their cutting trajectories of the irregular hollow tube a into a closed shape.

[0008] According to one aspect of a specific embodiment of the present invention, the first stabilizing clamp group q1 and the second stabilizing clamp group q2 are each composed of a plurality of telescopic clamps qs evenly distributed relative to the center of the hole k, and the plurality of telescopic clamps qs cooperate with each other to clamp and fix the irregular hollow tube a. Attached Figure Description

[0009] The features, advantages and technical effects of exemplary embodiments of the present invention will now be described with reference to the accompanying drawings.

[0010] Serial number description: irregular hollow tube a, moving vehicle c, hole k, first stabilizing clamp group q1, first stabilizing frame q1a, second stabilizing clamp group q2, second stabilizing frame q2a, telescopic clamp qs, dual-unit sawing device j, first feed sawing machine j1, first displacement device w1, second feed sawing machine j2, second displacement device w2, saw blade jp, programmable driver q, linear guide g, wall d.

[0011] Figure 1 This is a schematic diagram of the basic structure of the overall layout of an embodiment of the present invention.

[0012] Figure 2 This is a side view of the first stabilizing clamp group q1 in an embodiment of the present invention.

[0013] Figure 3 This is a side view of the layout of the second stabilizing clamp group q2 in an embodiment of the present invention.

[0014] Figure 4 This is a side view of the dual-unit sawing device according to an embodiment of the present invention.

[0015] Figure 5 This is a schematic diagram of the dual-unit sawing device j starting sawing according to an embodiment of the present invention.

[0016] Figure 6 This is a schematic diagram of the dual-unit sawing device j completing sawing according to an embodiment of the present invention.

[0017] Figure 7 This is a schematic diagram illustrating the displacement generated during sawing in an embodiment of the present invention.

[0018] Figure 8 This is a schematic diagram of the release of the irregular hollow tube a by the stabilizing clamp assembly in an embodiment of the present invention.

[0019] Figure 9 This is a schematic diagram of the path when sawing square tubes according to an embodiment of the present invention.

[0020] Figure 10 This is a schematic diagram of the path when sawing a circular tube according to an embodiment of the present invention.

[0021] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not drawn to scale. Detailed Implementation

[0022] The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and examples. The following detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of the present invention by way of example, but should not be used to limit the scope of the present invention. That is, the present invention is not limited to the described preferred embodiments, and the scope of the present invention is defined by the claims.

[0023] In the description of the embodiments of the present invention, it should be noted that, unless otherwise stated, "perpendicular" and "parallel" are not only absolute in a mathematical sense, but can be understood as "approximately perpendicular" and "approximately parallel".

[0024] Figure 1 This is a schematic diagram of the basic structure of the overall layout of an embodiment of the present invention.

[0025] like Figure 1As shown, this embodiment provides a suspended reciprocating sawing machine that can avoid falling stains and debris, is suitable for large-diameter pipes, can process various specifications, and has a wide range of applications. It achieves precise contour sawing by using a simple mechanical structure combined with computer programming to realize computer control and drive the saw blade. This technical solution has a simple structure, is easy to maintain and repair, has a wide range of applications, saves costs, and improves accuracy and efficiency. In a specific implementation, a movable vehicle c is installed on the wall d, connected to it via a linear slide rail g, and capable of sliding linearly along its extension direction. The center of the movable vehicle c is provided with a hole k that can accommodate a continuous irregular hollow tube a through which it passes. On both sides of the movable vehicle c, a first stabilizing clamp group q1 and a second stabilizing clamp group q2 with a frame structure are respectively mounted. Between the first stabilizing clamp group q1 and the second stabilizing clamp group q2, a set of dual-unit sawing devices j is arranged in parallel. The dual-unit sawing device j also has a first feed sawing machine j1 and a second feed sawing machine j2. Both the first feed sawing machine j1 and the second feed sawing machine j2 are provided with saw blades jp. The irregular hollow tube a passes through the hole k and is fixed by the clamping of the first stabilizing clamp group q1 and the second stabilizing clamp group q2. Both the first feed sawing machine j1 and the second feed sawing machine j2 can drive the saw blades jp to move along the outer contour direction of the irregular hollow tube a and cooperate with each other to achieve contour sawing of the irregular hollow tube a.

[0026] Figure 2 This is a side view of the first stabilizing clamp group q1 in an embodiment of the present invention.

[0027] like Figure 2As shown, according to one aspect of a specific embodiment of the present invention, the feeding direction of the irregular hollow tube a in this embodiment is on the left and the discharging direction is on the right, that is, it passes through the moving vehicle c from left to right. The first stabilizing clamp assembly q1 is disposed on the moving vehicle c in the feeding direction relative to the irregular hollow tube a. The first stabilizing clamp assembly q1 is a frame structure with a first stabilizing frame q1a disposed on it. The first stabilizing clamp assembly q1 is fixedly connected to the left side of the moving vehicle c through the first stabilizing frame q1a. The first stabilizing frame q1a is preferably a steel structure frame, and four telescopic clamps qs are respectively disposed inside it. A hole k is also provided in the center of the first stabilizing frame q1a. When the first stabilizing frame q1a and the moving vehicle c are installed together, the hole k on the moving vehicle c coincides with the hole k on the first stabilizing frame q1a. The four telescopic clamps qs disposed inside the first stabilizing frame q1a are evenly distributed along the center of the hole k, and all four telescopic clamps qs can perform telescopic movements, with their telescopic directions all facing the center of the hole k. Preferably, in this embodiment, the four telescopic clamps qs can all be configured as telescopic hydraulic cylinders or telescopic pneumatic cylinders, and each is provided with a stabilizing clamp block at its extension end. When the four telescopic clamps qs extend simultaneously, the stabilizing clamp blocks respectively provided at the extension ends of the four telescopic clamps qs can synchronously contact the outer surface of the shaped hollow tube a at the same time. The pressure generated by the continuous extension of the four telescopic clamps qs can maintain the stability of the shaped hollow tube a relative to the moving vehicle c.

[0028] Figure 3 This is a side view of the layout of the second stabilizing clamp group q2 in an embodiment of the present invention.

[0029] like Figure 3As shown, according to one aspect of a specific embodiment of the present invention, the second stabilizing clamp assembly q2 is disposed on the mobile vehicle c in the discharge direction relative to the shaped hollow tube a. The second stabilizing clamp assembly q2 is also configured as a frame structure, on which a second stabilizing frame q2a is disposed. The second stabilizing clamp assembly q2 is fixedly connected to the right side of the mobile vehicle c through the second stabilizing frame q2a. The second stabilizing frame q2a is also preferably configured as a steel structure frame, and four telescopic clamps qs are respectively disposed inside it. A hole k is also disposed in the center of the second stabilizing frame q2a. When the second stabilizing frame q2a and the mobile vehicle c are installed together, the hole k on the mobile vehicle c coincides with the hole k on the second stabilizing frame q2a. The four telescopic clamps qs disposed inside the second stabilizing frame q2a are evenly distributed along the center of the hole k, and all four telescopic clamps qs can perform telescopic movements, and their telescopic directions are all towards the center of the hole k. Preferably, in this embodiment, the four telescopic clamps qs can all be configured as telescopic hydraulic cylinders or telescopic pneumatic cylinders, and each is provided with a stabilizing clamp block at its extension end. When the four telescopic clamps qs extend simultaneously, the stabilizing clamp blocks respectively provided at the extension ends of the four telescopic clamps qs can synchronously contact the outer surface of the shaped hollow tube a at the same time. The pressure generated by the continuous extension of the four telescopic clamps qs can maintain the stability of the shaped hollow tube a relative to the moving vehicle c.

[0030] According to one aspect of a specific embodiment of the present invention, a programmable driver q is also provided on the side of the wall d. The first stabilizing clamp group q1 and the second stabilizing clamp group q2 can be synchronously controlled by the programmable driver q to extend or retract the four telescopic clamps qs respectively provided thereon simultaneously, so as to achieve synchronous clamping or release of the irregular hollow tube a.

[0031] Figure 4 This is a side view of the dual-unit sawing device according to an embodiment of the present invention.

[0032] like Figure 4 As shown, according to one aspect of a specific embodiment of the present invention, structurally, the dual-unit sawing device j is sandwiched between the first stabilizing clamp group q1 and the second stabilizing clamp group q2. This layout ensures that the irregularly shaped hollow tube a remains stable during the sawing process due to the clamping of the first stabilizing clamp group q1 and the second stabilizing clamp group q2. The mobile vehicle c also has a vertical mounting surface for mounting the dual-unit sawing device j. Both the first feed sawing machine j1 and the second feed sawing machine j2 are mounted on the vertical mounting surface, ensuring that the saw blades jp respectively mounted thereon are in the same plane.

[0033] In this embodiment, the first feed sawing machine j1 is connected to the vertical mounting surface of the moving carriage c via a first displacement device w1. The first displacement device w1 is also equipped with a horizontal displacement device and a vertical displacement device. In this embodiment, the horizontal displacement device and the vertical displacement device are preferably configured as a horizontal linear slide rail and a vertical linear slide rail, respectively. The spatial position movement of the first feed sawing machine j1 is achieved by superimposing the horizontal linear slide rail and the vertical linear slide rail. Specifically, the vertical displacement device provided on the first displacement device w1 is first fixedly connected to the vertical mounting surface of the moving carriage c. Then, the horizontal displacement device provided on the first displacement device w1 is fixedly installed on this vertical displacement device. Finally, the first feed sawing machine j1 is fixedly installed on this horizontal displacement device. With this configuration, the first feed sawing machine j1 can move the saw blade jp mounted on it freely in space on a plane perpendicular to the feed direction of the shaped hollow tube a under the movement of the first displacement device w1. Furthermore, the first feed sawing machine j1 can move in a contour relative to the outer surface of the shaped hollow tube a through the programming control of the programmable driver q.

[0034] In this embodiment, the second feed sawing machine j2 is connected to the vertical mounting surface of the moving carriage c via a second displacement device w2. The second displacement device w2 also includes a lateral displacement device and a vertical displacement device. In this embodiment, the lateral and vertical displacement devices are preferably configured as a lateral linear slide rail and a vertical linear slide rail, respectively. The spatial movement of the second feed sawing machine j2 is achieved by superimposing the lateral and vertical linear slide rails. Specifically, the lateral displacement device on the second displacement device w2 is first fixedly connected to the vertical mounting surface of the moving carriage c. Then, the vertical displacement device on the second displacement device w2 is fixedly installed on the lateral displacement device. Finally, the second feed sawing machine j2 is fixedly installed on the vertical displacement device. With this configuration, the second feed sawing machine j2 can move the saw blade jp mounted on it freely in space on a plane perpendicular to the feed direction of the shaped hollow tube a under the action of the movement of the second displacement device w2. Furthermore, through the programming control of the programmable driver q, the second feed sawing machine j2 can achieve contour-following movement relative to the outer surface contour of the shaped hollow tube a.

[0035] According to one aspect of a specific embodiment of the present invention, the saw blade jp disposed on the first feed saw j1 and the second feed saw j2 forms a closed cutting trajectory of the shaped hollow tube a under the movement action of the first displacement device w1 and the second displacement device w2, so as to ensure that the shaped hollow tube a can be completely cut off.

[0036] Figure 5 This is a schematic diagram of the dual-unit sawing device j starting sawing according to an embodiment of the present invention.

[0037] Figure 6 This is a schematic diagram of the dual-unit sawing device j completing sawing according to an embodiment of the present invention.

[0038] like Figure 5 and Figure 6 As shown, according to one aspect of a specific embodiment of the present invention, the specific sawing process is as follows: First, the moving carriage c drives the first stabilizing clamp group q1, the second stabilizing clamp group q2, and the dual-unit sawing device j, which are mounted on it, to move along the extension direction of the wall d to the end of the feed direction of the shaped hollow tube a, which in this embodiment is the left side of the wall d. From here, the moving carriage c begins to accelerate towards the discharge direction of the shaped hollow tube a, which in this embodiment is the right side of the wall d. Simultaneously, the shaped hollow tube a passes through the hole k and moves continuously to the right at a uniform speed. When the moving carriage c accelerates to the same speed as the shaped hollow tube a, the first stabilizing clamp group q1 and the second stabilizing clamp group q2, which are mounted on the left and right sides of the moving carriage c, both drive the telescopic clamp qs mounted on them to extend the stabilizing clamp blocks towards the shaped hollow tube a until the two ends of the shaped hollow tube a in its length direction are respectively fixed. At the same time, the dual-unit sawing device j starts to work, and the first feed sawing machine j1 and the second feed sawing machine j2 start to drive the saw blade jp mounted on it to move towards the direction of the irregular hollow tube a.

[0039] Figure 9 This is a schematic diagram of the path when sawing square tubes according to an embodiment of the present invention.

[0040] like Figure 9As shown, according to one aspect of a specific embodiment of the present invention, when the material to be cut is a rectangular hollow tube, the second feed saw j2 drives the saw blade jp mounted thereon to move from top to bottom close to the upper surface of the rectangular-shaped hollow tube a, and moves at a constant speed from the left right angle to the right angle of the right upper surface outer contour along the outer contour of the rectangular shape. Then, following the rounded corner at the right angle, it moves at a constant speed downward along the right outer contour of the rectangular shape from the upper right angle to the lower right angle. At this point, one working cycle of the second feed saw j2 ends. Then, the second feed saw j2 drives the saw blade jp mounted thereon to retract and return to the starting position. Simultaneously, the first feed sawing machine j1 drives the saw blade jp mounted on it to move from bottom to top, approaching the lower surface of the rectangular hollow tube a. It moves at a constant speed from the right right angle to the right angle of the left lower surface outer contour along the rectangular lower surface outer contour. Then, following the rounded corner at the right angle, it moves at a constant speed upwards along the left outer contour of the rectangular shape from the lower right angle to the upper right angle. This completes one working cycle of the first feed sawing machine j1. Then, the first feed sawing machine j1 drives the saw blade jp mounted on it to retract and return to the starting position. It should be noted that the cutting trajectories of the first feed sawing machine j1 and the second feed sawing machine j2, respectively driving the saw blade jp mounted on them, to cut the hollow tube a form a closed loop.

[0041] Figure 10 This is a schematic diagram of the path when sawing a circular tube according to an embodiment of the present invention.

[0042] like Figure 10 As shown, according to one aspect of a specific embodiment of the present invention, when the material to be cut is a circular hollow tube, the second feed saw j2 drives the saw blade jp mounted thereon to move from top to bottom towards the upper surface of the circular-shaped hollow tube a, and moves half a circular contour from left to right along the outer contour of its circular upper surface. At this point, one working cycle of the second feed saw j2 ends. Then, the second feed saw j2 drives the saw blade jp mounted thereon to retract and return to the starting position. Simultaneously, the first feed saw j1 drives the saw blade jp mounted thereon to move from bottom to top towards the lower surface of the circular-shaped hollow tube a, and moves half a circular contour from right to left along the outer contour of its circular lower surface. At this point, one working cycle of the first feed saw j1 ends. Then, the first feed saw j1 drives the saw blade jp mounted thereon to retract and return to the starting position. It should be noted that the first feed saw j1 and the second feed saw j2 respectively drive the saw blade jp mounted on them to combine their cutting trajectories of the irregular hollow tube a into a closed shape.

[0043] Figure 7This is a schematic diagram illustrating the displacement generated during sawing in an embodiment of the present invention.

[0044] Figure 8 This is a schematic diagram of the release of the irregular hollow tube a by the stabilizing clamp assembly in an embodiment of the present invention.

[0045] like Figure 7 and Figure 8 As shown, according to one aspect of a specific embodiment of the present invention, after the first feed sawing machine j1 and the second feed sawing machine j2 synchronously complete the sawing, the telescopic clamps qs respectively provided on the first stabilizing clamp group q1 and the second stabilizing clamp group q2 synchronously retract, driving the stabilizing clamp blocks provided thereon away from the shaped hollow tube a until the shaped hollow tube a is completely released. At the same time, the moving cart c gradually decelerates to a stop and returns to the starting position. The shaped hollow tube a, the part of which is cut off in the discharge direction of the shaped hollow tube a, is transported to the next work station. One work cycle of this embodiment ends, and the cycle repeats.

[0046] It should be understood that the description of specific embodiments of the present invention in the specification is exemplary and should not be construed as an undue limitation on the scope of protection of the present invention. The scope of protection of the present invention is defined by its claims and covers all embodiments falling within its scope and their obvious equivalents.

Claims

1. A suspended reciprocating sawing machine for online continuous sawing of large-diameter irregularly shaped hollow tubes (a) of various specifications, equipped with a moving carriage (c), characterized in that... The mobile vehicle (c) is suspended on a vertically arranged wall (d) via a linear slide rail. The mobile vehicle (c) is also equipped with a first stabilizing clamp group (q1) and a second stabilizing clamp group (q2). A dual-unit sawing device (j) is also provided between the first stabilizing clamp group (q1) and the second stabilizing clamp group (q2). The dual-unit sawing device (j) is also equipped with a first feed sawing machine (j1) and a second feed sawing machine (j2). The center of the mobile vehicle (c) is also provided with a hole (k). The irregular hollow tube (a) passes through the hole (k) and is fixed by clamping the first stabilizing clamp group (q1) and the second stabilizing clamp group (q2). The first feed sawing machine (j1) and the second feed sawing machine (j2) are both equipped with saw blades (jp), and both can drive the saw blades (jp) to move along the outer contour of the irregular hollow tube (a) and cooperate with each other to realize the contour sawing of the irregular hollow tube (a).

2. The suspended reciprocating sawing machine according to claim 1, characterized in that... The first feed sawing machine (j1) is interconnected with the moving vehicle (c) through the first displacement device (w1). The first displacement device (w1) is also equipped with a horizontal displacement device and a vertical displacement device. Under the movement action of the first displacement device (w1), the first feed sawing machine (j1) can drive the saw blade (jp) mounted on it to make contour-following movements on a plane perpendicular to the feed direction of the irregular hollow tube (a).

3. A suspended reciprocating sawing machine according to claim 2, characterized in that... The second feed sawing machine (j2) is interconnected with the moving carriage (c) through the second displacement device (w2). The second displacement device (w2) is also equipped with a horizontal displacement device and a vertical displacement device. Under the movement action of the second displacement device (w2), the second feed sawing machine (j2) can drive the saw blade (jp) mounted on it to make contour-following movements on a plane perpendicular to the feed direction of the irregular hollow tube (a).

4. A suspended reciprocating sawing machine according to claim 3, characterized in that... The saw blades (jp) mounted on the first feed saw (j1) and the second feed saw (j2) combine their cutting trajectories on the shaped hollow tube (a) into a closed shape under the movement of the first displacement device (w1) and the second displacement device (w2).

5. A suspended reciprocating sawing machine according to claim 4, characterized in that... The first stabilizing clamp group (q1) and the second stabilizing clamp group (q2) are each composed of a plurality of telescopic clamps (qs) evenly distributed relative to the center of the hole (k). The plurality of telescopic clamps (qs) cooperate with each other to clamp and fix the irregular hollow tube (a).

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