Milling and sawing machine capable of replacing saw blade without shutdown

Abstract

A milling and sawing machine capable of replacing saw blades without shutdown is provided with a base, a first movable saw carriage and a second movable saw carriage are arranged on the base, a first saw blade is arranged on the first movable saw carriage, and a second saw blade is arranged on the second movable saw carriage. Both the first movable saw carriage and the second movable saw carriage can independently drive a first saw blade and a second saw blade which are arranged on the first movable saw carriage and the second movable saw carriage to saw bars, the first movable saw carriage and the second movable saw carriage are respectively provided with an independent walking driving device, the first movable saw carriage is provided with a first walking driver, and the second movable saw carriage is provided with a second walking driver. The first moving saw carriage is provided with a first walking driver, the second moving saw carriage is provided with a second walking driver, and the first moving saw carriage and the second moving saw carriage can independently complete online saw cutting work on bars under the driving action of the first walking driver and the second walking driver which are arranged on the first moving saw carriage and the second moving saw carriage respectively. According to the implementation mode, on-line non-stop saw blade replacement is achieved through the working mode that one machine is replaced and the other machine works.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automatic sizing and cutting of continuous bars in a straight seam welded pipe production line, and particularly relates to a sawing and milling machine capable of continuous operation and saw blade replacement without stopping. BACKGROUND

[0002] The sawing and milling machine is a device frequently used in a straight seam welded pipe production line, and its function is to continuously size and cut the continuous bars produced by a forming machine online without stopping, that is, as long as the production line does not stop, the sawing and milling machine needs to work continuously. However, the saw blade of the sawing and milling machine itself is a consumable part, and the saw blade needs to be replaced after a period of use. If it is not replaced, the sawing and milling machine will not be able to complete the cutting of the bars. However, if the replacement of the saw blade of the sawing and milling machine must be completed under the condition that the production line is continuously working, the only choice is to forcibly stop the production line first, and then replace the saw blade of the sawing and milling machine. Such operation inevitably reduces the production efficiency of the production line. In order to achieve the replacement of the saw blade of the sawing and milling machine without stopping the production line, the production plant most hopes to achieve this wish, so it has become a new trend for the technical personnel in this field to develop a sawing and milling machine capable of replacing the saw blade without stopping to complete the replacement of the saw blade of the sawing and milling machine online. SUMMARY

[0003] The present embodiment provides a sawing and milling machine capable of replacing the saw blade without stopping to complete the replacement of the saw blade of the sawing and milling machine online, which is capable of realizing the replacement of the saw blade without stopping. Two independent sawing and milling machines are arranged symmetrically in the subsequent process of the shaping machine producing continuous bars, realizing the working mode of one replacement and one working. The technical solution has the advantages of simple structure, easy maintenance and repair, wide application range, cost saving, and improved precision and efficiency.

[0004] Specifically, in one aspect, a sawing and milling machine capable of replacing the saw blade without stopping is used to replace the saw blade without stopping when continuously sawing the bars online, and is provided with a base d, a first mobile saw car a1 and a second mobile saw car a2 are arranged on the base d, the first mobile saw car a1 is provided with a first saw blade j1, the second mobile saw car a2 is provided with a second saw blade j2, the first mobile saw car a1 and the second mobile saw car a2 can independently drive the first saw blade j1 and the second saw blade j2 arranged thereon to complete the sawing work of the bars b, the first mobile saw car a1 and the second mobile saw car a2 are each provided with an independent walking driving device, the first mobile saw car a1 is provided with a first walking driving device q1, the second mobile saw car a2 is provided with a second walking driving device q2, and the first mobile saw car a1 and the second mobile saw car a2 can independently complete the online sawing work of the bars b under the driving action of the first walking driving device q1 and the second walking driving device q2 arranged thereon respectively.

[0005] According to an aspect of the embodiments of the present application, the first mobile saw car a1 and the second mobile saw car a2 are arranged oppositely, and the bar b passes through the middle position between the first mobile saw car a1 and the second mobile saw car a2.

[0006] According to an aspect of the embodiments of the present application, when the first mobile saw car a1 changes the first saw blade j1, the second mobile saw car a2 can independently complete the online continuous sawing of the bar b.

[0007] According to an aspect of the embodiments of the present application, when the second mobile saw car a2 changes the second saw blade j2, the first mobile saw car a1 can independently complete the online continuous sawing of the bar b. BRIEF DESCRIPTION OF DRAWINGS

[0008] The features, advantages, and technical effects of the exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

[0009] Serial number Description: bar b, base d, first mobile saw car a1, first saw blade j1, first walking driver q1, second mobile saw car a2, second saw blade j2, second walking driver q2.

[0010] Figure 1 is a schematic diagram of changing the saw blade of the second mobile saw car a2 of the embodiments of the present application.

[0011] Figure 2 is a schematic diagram of the first mobile saw car a1 independently completing the cutting work of the embodiments of the present application.

[0012] Figure 3 is a schematic diagram of changing the saw blade of the first mobile saw car a1 of the embodiments of the present application.

[0013] Figure 4 is a schematic diagram of the second mobile saw car a2 independently completing the cutting work of the embodiments of the present application.

[0014] Figure 5 is a schematic diagram of the starting position of the two saw cars synchronously cutting the bar b of the embodiments of the present application.

[0015] Figure 6 is a schematic diagram of the two saw cars synchronously reciprocating cutting the bar b of the embodiments of the present application.

[0016] In the drawings, the same components are designated by the same reference numerals. The drawings are not drawn according to the actual scale. DETAILED DESCRIPTION

[0017] The embodiments of the present application will be further described in conjunction with the drawings and examples. The detailed description of the following examples and drawings are intended to illustrate the principles of the present application by way of example only, and should not be used to limit the scope of the present application, i.e., the present application is not limited to the preferred embodiments described, but is defined by the claims.

[0018] In the description of the embodiments of the present application, it should be noted that, unless otherwise specified, "vertical", "parallel" is not only the absolute sense of mathematics, can be understood as "approximately vertical", "approximately parallel".

[0019] Figure 1 is a schematic diagram of the second mobile saw car a2 replacing the saw blade in the embodiment of the present application.

[0020] Figure 2 is a schematic diagram of the first mobile saw car a1 independently completing the cutting work in the embodiment of the present application.

[0021] As Figure 1 and Figure 2The embodiment shown provides a non-stop saw blade changing milling and sawing machine which can realize online non-stop production line to complete online replacement of milling and sawing machine saw blade. Two independent milling and sawing machines are arranged symmetrically in the subsequent process of the shaping machine to produce continuous bars, realizing one machine replacement and one machine working mode. The technical scheme has simple structure, easy maintenance, wide application range, cost saving, improved precision and efficiency. In the specific embodiment, a steel structure welded long strip-shaped base d is provided, which is preferably arranged in two parts in parallel and symmetrically and has a certain spacing. The bar b passes through the center of symmetry of the two parts of the base d and moves uniformly. A first mobile saw car a1 and a second mobile saw car a2 are further provided on the base d. The first mobile saw car a1 and the second mobile saw car a2 are connected to the two symmetrically arranged parts of the base d through base linear slides and can slide linearly under the guidance of the base linear slides. The linear extension direction of the base linear slide is parallel to the direction of the uniform motion of the bar b passing through the base d. The first mobile saw car a1 is provided with a first saw blade j1 which can be removed and replaced. The second mobile saw car a2 is provided with a second saw blade j2 which can be removed and replaced. The first mobile saw car a1 and the second mobile saw car a2 can independently drive the first saw blade j1 and the second saw blade j2 on them to move left and right on the base d. The first mobile saw car a1 and the second mobile saw car a2 are each provided with an independent walking driving device. The first mobile saw car a1 is provided with a first walking driving device q1. The second mobile saw car a2 is provided with a second walking driving device q2. The first mobile saw car a1 and the second mobile saw car a2 can be independently started, accelerated, uniformly moved, decelerated and stopped under the driving action of the first walking driving device q1 and the second walking driving device q2 respectively and the process is repeated.

[0022] According to one aspect of the embodiment, a first sawing module is further provided on the first mobile saw car a1. The first saw blade j1 is arranged on the first sawing module and can rotate at high speed on the first sawing module. The first saw blade j1 is arranged vertically relative to the uniform motion direction of the bar b. The first sawing module and the first mobile saw car a1 are connected through a sawing linear slide. The linear extension direction of the sawing linear slide is perpendicular to the uniform motion direction of the bar b. The first sawing module can drive the high-speed rotating first saw blade j1 to move towards or away from the bar b along the sawing linear slide. When the first sawing module drives the high-speed rotating first saw blade j1 to move towards the bar b, the bar b can be sawed. When the first sawing module drives the high-speed rotating first saw blade j1 to move away from the bar b, the sawing is completed.

[0023] According to an aspect of the embodiment of the present application, the second moving saw vehicle a2 is further provided with a second sawing module, the second saw blade j2 is arranged on the second sawing module, the second saw blade j2 can rotate at high speed on the second sawing module, and the second saw blade j2 is arranged perpendicularly to the uniform motion direction of the bar b. The second sawing module and the second moving saw vehicle a2 are connected to each other through a sawing linear slide rail, the linear extension direction of the sawing linear slide rail is arranged perpendicularly to the uniform motion direction of the bar b, the second sawing module can drive the high-speed rotating second saw blade j2 to move along the sawing linear slide rail to approach or move away from the bar b, when the second sawing module drives the high-speed rotating second saw blade j2 to approach the bar b, the sawing of the bar b can be realized, and when the second sawing module drives the high-speed rotating second saw blade j2 to move away from the bar b, the sawing is completed.

[0024] As shown in Figure 1 and Figure 2 When the sawing machine of the embodiment needs to replace the second saw blade j2 of the second moving saw vehicle a2, the second walking driver q2 on the second moving saw vehicle a2 drives the second moving saw vehicle a2 to move to a specific position for replacing the second saw blade j2 and then stops working, and then the replacement of the second saw blade j2 is completed by the worker. At the same time, the first walking driver q1 on the first moving saw vehicle a1 starts to drive the first moving saw vehicle a1 to gradually accelerate from the static state and move in the same direction as the bar b, when the first moving saw vehicle a1 accelerates to the same speed as the bar b, the uniform motion at the same speed is maintained, then the first sawing module drives the high-speed rotating first saw blade j1 arranged thereon to approach the bar b and saw the bar b, after the sawing is completed, the first sawing module drives the high-speed rotating first saw blade j1 arranged thereon to move away from the bar b until completely separated from the bar b, at the same time, the first moving saw vehicle a1 starts to decelerate and gradually stops, and then returns to the starting position, and the above process is repeated until the replacement of the second saw blade j2 is completed by the worker.

[0025] Figure 3 is a schematic diagram of replacing the saw blade of the first moving saw vehicle a1 of the embodiment of the present application.

[0026] Figure 4 is a schematic diagram of independently completing the cutting work of the second moving saw vehicle a2 of the embodiment of the present application.

[0027] As shown in Figure 3 and Figure 4When the sawing machine of the present embodiment needs to replace the first saw blade j1 of the first mobile saw carriage a1, the first walking driver q1 on the first mobile saw carriage a1 drives the first mobile saw carriage a1 to move to a specific position for replacing the first saw blade j1 and then stops working, and then the workers replace the first saw blade j1. At the same time, the second walking driver q2 on the second mobile saw carriage a2 starts to drive the second mobile saw carriage a2 to gradually accelerate from the stationary state and move with the bar b, and when the second mobile saw carriage a2 accelerates to the same speed as the bar b, it starts to keep a uniform speed with the bar b, and then the second sawing module starts to drive the high-speed rotating second saw blade j2 arranged thereon to approach the bar b and saw the bar b. After sawing, the second sawing module drives the high-speed rotating second saw blade j2 arranged thereon to move away from the bar b until it completely separates from the bar b, and at the same time, the second mobile saw carriage a2 starts to decelerate and gradually stops, and then returns to its starting position, and the above process is repeated until the workers replace the first saw blade j1.

[0028] Figure 5 is a schematic diagram of the starting position of the two saw carriages of the present embodiment for synchronously cutting the bar b.

[0029] Figure 6 is a schematic diagram of the two saw carriages of the present embodiment for synchronously reciprocating cutting the bar b.

[0030] As Figure 5 and Figure 6As shown, when the first saw blade j1 and the second saw blade j2 in the sawing machine of the present embodiment do not need to be replaced, the first mobile saw carriage a1 and the second mobile saw carriage a2 can complete the cutting work of the bar b alternately at the same time, so that the moving speed of the first mobile saw carriage a1 and the second mobile saw carriage a2 can be reduced to half of the original under the condition that the feeding speed of the bar b is unchanged, thereby increasing the service life thereof. The specific working process is as follows: first, preferably, in the present embodiment, the starting work of the first mobile saw carriage a1 is set on the left side of the base d, and the starting work of the second mobile saw carriage a2 is set on the right side of the base d. When starting work, the first walking driver q1 on the first mobile saw carriage a1 is started to drive the first mobile saw carriage a1 to gradually accelerate from the stationary state and move in the same direction as the bar b. When the first mobile saw carriage a1 accelerates to the same speed as the bar b, it starts to keep uniform motion at the same speed as the bar b. Then the first sawing module starts to drive the high-speed rotating first saw blade j1 arranged thereon to approach the bar b and cut the bar b. After cutting, the first sawing module drives the high-speed rotating first saw blade j1 arranged thereon to move away from the bar b until it completely separates from the bar b. At the same time, the first mobile saw carriage a1 starts to decelerate and gradually stops, and then returns to its starting position. During the time when the first mobile saw carriage a1 completes the cutting of the bar b, the second mobile saw carriage a2 just completes the movement from its starting position to the opposite position of the starting position of the first mobile saw carriage a1. Then, the second walking driver q2 on the second mobile saw carriage a2 is started to drive the second mobile saw carriage a2 to gradually accelerate from the stationary state and move in the same direction as the bar b. When the second mobile saw carriage a2 accelerates to the same speed as the bar b, it starts to keep uniform motion at the same speed as the bar b. Then the second sawing module starts to drive the high-speed rotating second saw blade j2 arranged thereon to approach the bar b and cut the bar b. After cutting, the second sawing module drives the high-speed rotating second saw blade j2 arranged thereon to move away from the bar b until it completely separates from the bar b. At the same time, the second mobile saw carriage a2 starts to decelerate and gradually stops. During the time when the second mobile saw carriage a2 completes the cutting of the bar b, the first mobile saw carriage a1 just completes the movement from its starting position to the opposite position of the starting position of the second mobile saw carriage a2. The cutting work is completed in a cycle.

[0031] It should be understood that the description of the specific embodiments of the present application in the specification is exemplary and should not be construed as an improper limitation on the scope of protection of the present application. The scope of protection of the present application is defined by its claims, and all embodiments falling within the scope thereof and their obvious equivalent variations are encompassed.

Claims

1. A milling saw with non-stop saw blade changing, used for continuous online sawing of bar stock (b) to achieve non-stop saw blade changing, comprising a base (d), on which a first movable saw carriage (a1) and a second movable saw carriage (a2) are mounted, the first movable saw carriage (a1) being mounted with a first saw blade (j1), and the second movable saw carriage (a2) being mounted with a second saw blade (j2), wherein both the first movable saw carriage (a1) and the second movable saw carriage (a2) can independently drive the first saw blade (j1) and the second saw blade (j2) mounted thereon to complete the sawing work of the bar stock (b), characterized in that... The first mobile saw (a1) and the second mobile saw (a2) are each equipped with an independent travel drive device. The first mobile saw (a1) is equipped with a first travel driver (q1), and the second mobile saw (a2) is equipped with a second travel driver (q2). The first mobile saw (a1) and the second mobile saw (a2) can independently complete the online sawing of the bar (b) under the driving action of the first travel driver (q1) and the second travel driver (q2) respectively provided on them.

2. A milling saw machine for non-stop saw blade changing according to claim 1, characterized in that... The first mobile saw (a1) and the second mobile saw (a2) are arranged opposite to each other, and the bar (b) passes through the middle position of the first mobile saw (a1) and the second mobile saw (a2) arranged opposite to each other.

3. A milling saw machine for non-stop saw blade changing according to claim 2, characterized in that... When the first saw blade (j1) is replaced by the first mobile saw (a1), the second mobile saw (a2) can independently complete the online continuous sawing of the bar stock (b).

4. A milling saw machine for non-stop saw blade changing according to claim 3, characterized in that... When the second mobile saw (a2) is changing the second saw blade (j2), the first mobile saw (a1) can independently complete the online continuous sawing of the bar stock (b).

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