Cold sawing machine

Abstract

The invention relates to the technical field of cutting equipment.The cold sawing machine comprises a cold sawing machine body, an alloy tool bit is fixedly connected to the cambered surface of a sawing disc in the cold sawing machine body, the alloy tool bit is arranged around the outer cambered surface of the sawing disc, a limiting plate is arranged on one side of the cold sawing machine body, and the limiting plate is arranged on the other side of the cold sawing machine body; the cold sawing machine comprises a cold sawing machine body, a limiting plate is arranged on the cold sawing machine body, two limiting rollers are rotationally connected to the limiting plate, a gap allowing a steel pipe to pass through is reserved between the two limiting rollers, two positioning blocks are arranged on one side of the cold sawing machine body, a gap allowing a sawing disc in the cold sawing machine body to pass through is reserved between the two positioning blocks, and arc-shaped positioning grooves are formed in the positioning blocks. An abutting assembly used for abutting the steel pipe into the arc-shaped positioning groove is arranged on one side of the positioning block, and a cleaning mechanism used for cleaning residual burrs of the cut steel pipe is arranged between the limiting roller and the abutting assembly. The cold sawing machine has the effect of reducing burrs on the end faces of the steel pipes after the opposite end faces of the steel pipes are cut by the cold sawing machine.

Description

Technical Field

[0001] The present application relates to the technical field of cutting equipment, and particularly relates to a cold sawing machine. Background Art

[0002] A cold sawing machine is a device specifically used for sawing metal materials, especially suitable for sawing metal profiles with a temperature below 300 °C, such as section steel and steel pipe section steel. Different from traditional hot sawing machines, during the sawing process of a cold sawing machine, the saw blade and the workpiece maintain a relatively low temperature, and the heat generated during sawing is mainly transferred to the sawdust through the saw teeth.

[0003] Regarding the above related technologies, the burrs generated during cold sawing are common problems in metal processing. Although the burrs generated during cold sawing seem tiny, they have an unignorable negative impact on subsequent processing and product quality. In related technologies, workers usually use a hand-held grinding wheel to polish the end face of the steel pipe after cutting. However, the sharp burrs may scratch the operator's fingers during the polishing process, especially during handling, increasing the safety risk in the workplace. Summary of the Invention

[0004] In order to reduce the burrs on the end face of the steel pipe after the cold sawing machine cuts the end face of the steel pipe, the present application provides a cold sawing machine.

[0005] A cold sawing machine provided by the present application adopts the following technical solutions: A cold sawing machine includes a cold sawing machine body. Alloy cutting heads are fixedly connected to the arc surface of the saw disc in the cold sawing machine body. The alloy cutting heads are arranged around the outer arc surface of the saw disc. A limiting plate is arranged on one side of the cold sawing machine body. Two limiting rollers are rotatably connected to the limiting plate. A gap for the steel pipe to pass through is left between the two limiting rollers. Two positioning blocks are arranged on one side of the cold sawing machine body. A gap for the saw disc in the cold sawing machine body to pass through is left between the two positioning blocks. An arc-shaped positioning groove is formed in the positioning block. A pressing assembly is arranged on one side of the positioning block for pressing the steel pipe tightly into the arc-shaped positioning groove. A cleaning mechanism for cleaning the remaining burrs on the steel pipe after cutting is arranged between the limiting roller and the pressing assembly.

[0006] By adopting the above technical solutions, the height of the saw disc in the cold sawing machine body can be greatly increased by using alloy cutting heads, thereby improving the cutting rigidity of the cold sawing machine body and reducing the generation of burrs. At the same time, the steel pipe to be cut is kept stable by the limiting rollers and the pressing assembly, thereby reducing the shaking of the steel pipe during cutting, and further minimizing the cutting area of the alloy cutting heads, and further reducing the generation of burrs. Subsequently, after the steel pipe is cut, the remaining burrs on the end of the steel pipe can be finally cleaned by the cleaning mechanism, thereby greatly reducing the burrs on the end face of the steel pipe after the cold sawing machine cuts the end face of the steel pipe.

[0007] Optionally, the pressing component includes a support platform, a pushing cylinder is fixedly connected to the support platform, a telescopic end of the pushing cylinder is fixedly connected to an arc-shaped block, and an inner arc surface of the arc-shaped block faces one side of the arc-shaped positioning groove.

[0008] By adopting the above technical solution, by controlling the telescopic movement of the pushing cylinder, the pushing cylinder can drive the arc-shaped block to press the steel pipe tightly in the arc-shaped positioning groove, thereby stably fixing the steel pipe between the arc-shaped positioning groove and the arc-shaped block.

[0009] Optionally, the cleaning mechanism includes a placement plate, and the cleaning mechanism further includes a lifting component for driving the placement plate to lift and lower. Two positioning frames are fixedly connected to the placement plate. A moving disk is slidably connected to the positioning frame. A grinding piece for grinding the end of the steel pipe is arranged on one side of the moving disk. A connecting component for connecting the two is arranged between the moving disk and the grinding piece. A driving component for driving the grinding piece to rotate is installed on the moving disk. A rotating component for driving the moving disk to rotate on the end face of the positioning frame is arranged on the placement plate. Abuttment plates are arranged on both sides of the lower end of the placement plate. A plurality of rollers are rotatably connected to one side of each abutment plate away from each other. The plurality of rollers are equidistantly arranged along the height direction of the abutment plate. A connecting line between an outer arc surface of one side of the roller away from the abutment plate and an outer arc surface of one side of the grinding piece away from the moving disk is parallel to an end face of the pipeline to be ground.

[0010] By adopting the above technical solution, after the steel pipe is cut off, the cut-off steel pipe can be moved forward a certain distance. Subsequently, the placement plate can be placed between the cut-off steel pipes by controlling the lifting component. Then, the cut-off surface of the cut-off steel pipe is abutted against the rollers. Subsequently, the lifting component is controlled to continue to descend until the end face of the grinding piece abuts against the cut-off surface of the steel pipe. Subsequently, the driving component drives the grinding piece to rotate, and at the same time, the rotating component is started to drive the moving disk to move along the inside of the positioning frame, thereby grinding the entire cut-off surface of the steel pipe.

[0011] Optionally, the lifting component includes a support frame, a lifting cylinder is installed at an upper end of the support frame, and a telescopic end of the lifting cylinder is fixedly connected to the placement plate.

[0012] By adopting the above technical solution, the height of the placement plate can be quickly controlled by controlling the telescopic movement of the lifting cylinder.

[0013] Optionally, the driving component includes a plurality of rotating motors fixedly connected to an upper end of the placement plate. The rotating motors correspond to the grinding pieces one by one and are fixedly connected to the grinding pieces.

[0014] By adopting the above technical solution, the rotation motor can be controlled to rotate, so that the grinding disc rotates together with the output shaft of the rotation motor.

[0015] Optionally, the rotation assembly includes a sliding rod inserted into the positioning frame body. A driving motor is fixedly connected to the upper surface of the placement plate. One end of the sliding rod is fixedly connected to the output shaft of the driving motor, and the other end of the sliding rod is fixedly connected to the moving disc.

[0016] By adopting the above technical solution, the driving motor can be controlled to rotate, so that the driving motor drives the moving disc to move in the positioning frame body through the sliding rod.

[0017] Optionally, the connection assembly includes two electric telescopic rods arranged in an alternating manner. One end of the electric telescopic rod is hinged to the moving disc, and an arc-shaped piece is provided at the other end of the electric telescopic rod. The far ends of the two electric telescopic rods away from the moving disc are both hinged to the outer arc surface of the arc-shaped piece. The rotation motor is fixedly connected to the outer arc surface of the arc-shaped piece, and the output shaft of the rotation motor passes through the arc-shaped piece and is fixedly connected to the grinding disc.

[0018] By adopting the above technical solution, the telescopic lengths of the two electric telescopic rods can be controlled to generate a difference in the lengths of the two electric telescopic rods. Furthermore, the arc-shaped piece can be made to move along a certain arc trajectory, thereby changing the position of the grinding disc on the arc-shaped piece and increasing the grinding range of the grinding disc.

[0019] Optionally, a retraction platform is provided on the side of the limiting plate away from the positioning block. A retraction cylinder is fixedly connected to the retraction platform. The telescopic end of the retraction cylinder is fixedly connected to a sliding plate. The sliding plate is slidably connected to the retraction platform. A positioning plate is fixedly connected to the upper end of the sliding plate. A locking plate is provided on one side of the positioning plate. A locking cylinder for driving the locking plate to press the steel pipe against the positioning plate is installed at the upper end of the sliding plate.

[0020] By adopting the above technical solution, the locking cylinder can be controlled to press the steel pipe against the positioning plate. Subsequently, the retraction cylinder can be started to drive the sliding plate to move, so that the front section of the steel pipe after being cut abuts against the abutting plate.

[0021] In summary, the present application includes at least one of the following beneficial technical effects: 1. Improve the cutting rigidity of the cold sawing machine body, reduce the generation of burrs, and at the same time keep the steel pipe being cut stable through the limiting rollers and the pressing assembly, thereby reducing the shaking of the steel pipe during the cutting process, further minimizing the cutting area of the alloy tool head, and further reducing the generation of burrs; 2. After the cutting of the steel pipe is completed, the cut steel pipe can be moved forward by a certain distance. Subsequently, the placing plate can be placed between the cut steel pipes by controlling the lifting assembly. Then, the cut surface of the cut steel pipe is abutted against the roller. Subsequently, the lifting assembly is controlled to continue descending until the end face of the grinding disc abuts against the cut surface of the steel pipe. Then, the driving assembly drives the grinding disc to rotate, and at the same time, the rotating assembly is started to drive the moving disc to move along the inside of the positioning frame, so as to grind the entire cut surface of the steel pipe; 3. By controlling the telescoping of the two electric telescopic rods, the lengths of the two electric telescopic rods can be made different, so that the arc-shaped piece can move in a certain arc trajectory, thereby changing the position of the grinding disc on the arc-shaped piece and increasing the grinding range of the grinding disc. Description of the Drawings

[0022] Figure 1 is the overall structural schematic diagram of the embodiment of the present application; Figure 2 is the structural schematic diagram of the cleaning mechanism of the embodiment of the present application; Figure 3 is Figure 2 the enlarged structural schematic diagram of part A in

[0023] In the figure, 1. Cold sawing machine body; 11. Alloy cutter head; 2. Limit plate; 21. Limit roller; 3. Positioning block; 31. Arc-shaped positioning groove; 4. Tightening assembly; 41. Support platform; 42. Pushing cylinder; 43. Arc-shaped block; 5. Cleaning mechanism; 51. Placing plate; 52. Positioning frame; 53. Lifting assembly; 531. Lifting cylinder; 532. Support frame; 54. Moving disc; 55. Grinding disc; 56. Connecting assembly; 561. Electric telescopic rod; 562. Arc-shaped piece; 57. Driving assembly; 571. Rotating motor; 58. Rotating assembly; 581. Slide bar; 582. Driving motor; 59. Abutting plate; 510. Roller; 6. Retracting table; 7. Slide plate; 8. Positioning plate; 9. Locking cylinder; 10. Locking plate; 101. Return pushing cylinder. Detailed Embodiment

[0024] The following is a further detailed description of the present application in conjunction with the attached Figure 1 - attached Figure 3 , to further elaborate on the present application.

[0025] The embodiment of the present application is: A cold sawing machine, referring to Figure 1 and Figure 2, including a cold saw machine body 1 erected on the ground. Alloy cutting heads 11 are fixedly connected to the arc surface of the saw disc in the cold saw machine body 1, and the alloy cutting heads 11 are arranged around the outer arc surface of the saw disc. A limiting plate 2 is arranged on one side of the cold saw machine body 1, and the limiting plate 2 is fixedly connected to the ground. Two limiting rollers 21 are rotatably connected to the limiting plate 2, and the axes of the limiting rollers 21 are perpendicular to the ground. The two limiting rollers 21 are at the same height and the axes of the two limiting rollers 21 are parallel to each other. A gap for the steel pipe to be cut to pass through is left between the two limiting rollers 21.

[0026] Two positioning blocks 3 are arranged on one side of the cold saw machine body 1, and a gap for the saw disc in the cold saw machine body 1 to pass through is left between the two positioning blocks 3. An arc-shaped positioning groove 31 is formed in the positioning block 3, and a pressing component 4 for pressing the steel pipe against the arc-shaped positioning groove 31 is arranged on one side of the positioning block 3. The pressing component 4 includes a support platform 41, and the support platform 41 is erected on the ground and is arranged in a cuboid shape. Two pushing cylinders 42 are fixedly connected to the support platform 41, and the pushing cylinders 42 correspond to the positioning blocks 3 one by one. The telescopic end of the pushing cylinder 42 is fixedly connected to an arc-shaped block 43, the inner arc surface of the arc-shaped block 43 faces one side of the arc-shaped positioning groove 31, and the inner arc surface of the arc-shaped block 43 and the arc-shaped positioning groove 31 are both in contact with the side wall of the steel pipe to be cut.

[0027] By controlling the telescopic movement of the pushing cylinder 42, the pushing cylinder 42 can drive the arc-shaped block 43 to press the steel pipe against the arc-shaped positioning groove 31, thereby stably fixing the steel pipe between the arc-shaped positioning groove 31 and the arc-shaped block 43. Subsequently, by controlling the cold saw machine body 1, the cold saw machine body 1 can drive the alloy cutting heads 11 on the saw disc to be placed at the gap between the two limiting rollers 21 and cut the steel pipe.

[0028] Refer to Figure 1 、 Figure 2 and Figure 3 , a cleaning mechanism 5 for cleaning the residual burrs on the steel pipe after cutting is arranged between the limiting roller 21 and the pressing component 4. The cleaning mechanism 5 includes a placement plate 51, and the placement plate 51 is arranged in a cuboid shape and is parallel to the ground. The cleaning mechanism 5 further includes a lifting component 53 for driving the placement plate 51 to lift and lower.

[0029] The lifting component 53 includes a support frame 532, and the support frame 532 is arranged in a gate shape and is fixedly connected to the ground. A lifting cylinder 531 is installed at the upper end of the support frame 532, and the telescopic direction of the lifting cylinder 531 is perpendicular to the ground. The telescopic end of the lifting cylinder 531 passes through the support frame 532 and is fixedly connected to the placement plate 51. Thus, by controlling the telescopic movement of the lifting cylinder 531, the height of the placement plate 51 can be quickly controlled.

[0030] On both sides of the lower end of the placement plate 51, there are abutting plates 59. The abutting plates 59 are arranged along the width direction of the placement plate 51 and are parallel to each other. There are two right-angled bending points on the abutting plates 59. On the sides of the abutting plates 59 that are far away from each other, a plurality of rollers 510 are rotatably connected. The plurality of rollers 510 are equidistantly arranged along the height direction of the abutting plates 59.

[0031] On the upper end surface of the placement plate 51, two positioning frames 52 are fixedly connected. A moving disk 54 is slidably connected to the positioning frames 52. On one side of the moving disk 54, there is a grinding piece 55 for grinding the end of the steel pipe. Between the moving disk 54 and the grinding piece 55, there is a connecting component 56 for connecting the two.

[0032] The connecting component 56 includes two electric telescopic rods 561 arranged in an alternating manner. One end of the electric telescopic rod 561 is hinged to the moving disk 54. The other end of the electric telescopic rod 561 is provided with an arc-shaped piece 562. The ends of the two electric telescopic rods 561 that are far away from the moving disk 54 are both hinged to the outer arc surface of the arc-shaped piece 562. A driving component 57 for driving the grinding piece 55 to rotate is installed on the arc-shaped piece 562.

[0033] The driving component 57 includes a rotating motor 571. In this embodiment, the grinding pieces 55 are arranged in three, and the rotating motors 571 are arranged in three. The rotating motors 571 correspond to the grinding pieces 55 one by one and are fixedly connected to the grinding pieces 55. The rotating motor 571 is fixedly connected to the outer arc surface of the arc-shaped piece 562, and the output shaft of the rotating motor 571 passes through the arc-shaped piece 562 and is fixedly connected to the grinding piece 55. At the same time, in order to ensure the abutment between the grinding piece 55 and the steel pipe to be cut, the connection line between the outer arc surface of the roller 510 on the side far away from the abutting plate 59 and the end surface of the grinding piece 55 on the side far away from the moving disk 54 is parallel to the end surface of the pipeline to be ground.

[0034] Thus, by controlling the rotation of the rotating motor 571, the grinding piece 55 can rotate together with the output shaft of the rotating motor 571. And by controlling the telescopic movement of the two electric telescopic rods 561, the lengths of the two electric telescopic rods 561 can be made to have a difference, and then the arc-shaped piece 562 can move along a certain arc trajectory, thereby changing the position of the grinding piece 55 on the arc-shaped piece 562 and improving the grinding range of the grinding piece 55.

[0035] The placing plate 51 is provided with a rotating assembly 58 for driving the moving disk 54 to rotate on the end face of the positioning frame 52. The rotating assembly 58 includes a sliding rod 581 inserted into the positioning frame 52. The sliding rod 581 has two right-angle bends and the sliding rod 581 corresponds to the moving disk 54 one by one. A driving motor 582 is fixedly connected to the upper part of the placing plate 51. The driving motor 582 is set as a double-output shaft driving motor 582. One end of the sliding rod 581 is fixedly connected to the output shaft of the driving motor 582, and the other end of the sliding rod 581 is fixedly connected to the moving disk 54. The moving disk 54 is slidably connected to the moving disk 54 through the sliding rod 581. By controlling the rotation of the driving motor 582, the driving motor 582 can drive the moving disk 54 to move along the inner wall of the positioning frame 52 within the positioning frame 52 through the sliding rod 581.

[0036] On the side of the limiting plate 2 away from the positioning block 3, there is a retracting platform 6, and the retracting platform 6 is erected on the ground. A retracting cylinder 101 is fixedly connected to the retracting platform 6. The telescopic end of the retracting cylinder 101 is fixedly connected to a sliding plate 7. The sliding plate 7 is slidably connected to the retracting platform 6. A positioning plate 8 is fixedly connected to the upper end of the sliding plate 7. A locking plate 10 is provided on one side of the positioning plate 8. A locking cylinder 9 for driving the locking plate 10 to press the steel pipe against the positioning plate 8 is installed at the upper end of the sliding plate 7.

[0037] The implementation principle of the embodiment of this application is that after the pressing assembly 4 presses the steel pipe to be cut into the arc-shaped groove positioning groove, the cold sawing machine body 1 can be controlled to cut the steel pipe. After the steel pipe is cut, the cut steel pipe can be moved forward by a certain distance. Subsequently, the placing plate 51 can be placed between the cut steel pipes by controlling the lifting assembly 53. Then, by controlling the retracting cylinder 101 and the locking cylinder 9, the front section of the cut steel pipe is pushed backward by a certain distance. Subsequently, the pushing cylinder 42 is controlled to cancel the fixation of the rear section of the steel pipe. Then, the rear section of the cut steel pipe is pushed backward and forward by workers or the conveying equipment in the factory area. Make the two cut surfaces of the cut steel pipe both abut against the rollers 510, thereby preliminarily positioning the end face of the steel pipe, and then fixing the positions of the front section and the rear section of the steel pipe. Subsequently, the lifting assembly 53 is controlled to continue to descend until the end face of the grinding disc 54 abuts against the cut surface of the steel pipe. Then, by starting the rotating motor 571, the grinding disc 54 is driven to rotate, so that the grinding disc 54 grinds the cut surface. At the same time, the rotating assembly 58 is started to drive the moving disk 54 to move along the inside of the positioning frame 52 and the grinding range is changed by controlling the alternating telescopic movement of the electric telescopic rod 561, so that the entire cut surface of the steel pipe can be ground.

[0038] The embodiments of the specific implementation manners are all preferred embodiments of the present application, and do not limit the protection scope of the present application thereby. The same components are denoted by the same reference numerals. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A cold saw machine, comprising a cold saw machine body (1), characterized in that: An alloy cutter head (11) is fixedly connected to the arc surface of the saw disk in the cold saw machine body (1), and the alloy cutter head (11) is arranged around the outer arc surface of the saw disk. A limit plate (2) is arranged on one side of the cold saw machine body (1), and two limit rollers (21) are rotatably connected to the limit plate (2), and a gap is left between the two limit rollers (21) for the steel pipe to pass through. Two positioning blocks (3) are arranged on one side of the cold saw machine body (1), and a gap is left between the two positioning blocks (3) for the saw disk in the cold saw machine body (1) to pass through. An arc-shaped positioning groove (31) is opened on the positioning block (3), and a clamping assembly (4) for clamping the steel pipe in the arc-shaped positioning groove (31) is arranged on one side of the positioning block (3), and a cleaning mechanism (5) for cleaning the burrs remaining on the steel pipe after cutting is arranged between the limit roller (21) and the clamping assembly (4).

2. A cold sawing machine according to claim 1, characterized in that: The abutting assembly (4) comprises a support platform (41), a push cylinder (42) being fixedly connected to the support platform (41), a curved block (43) being fixedly connected to the telescopic end of the push cylinder (42), and an inner curved surface of the curved block (43) facing one side of the curved positioning groove (31).

3. A cold sawing machine according to claim 1, characterized in that: The cleaning mechanism (5) comprises a placement plate (51), and the cleaning mechanism (5) further comprises a lifting assembly (53) for driving the placement plate (51) to move up and down; two positioning frames (52) are fixedly connected to the placement plate (51); a moving plate (54) is slidably connected to the positioning frame (52); a grinding sheet (55) for grinding the end of the steel pipe is provided on one side of the moving plate (54); a connecting assembly (56) for connecting the moving plate (54) and the grinding sheet (55) is provided between the moving plate (54) and the grinding sheet (55); a driving member (56) for driving the grinding sheet (55) to rotate is installed on the moving plate (54). A rotating assembly (57) is provided on the placement plate (51) for driving the movable disk (54) to rotate on the end surface of the positioning frame (52); abutment plates (59) are provided on both sides of the lower end of the placement plate (51); the sides of the abutment plates (59) away from each other are rotatably connected to a plurality of rollers (510); the plurality of rollers (510) are equidistantly arranged along the height direction of the abutment plate (59); and a line connecting an outer arc surface of the roller (510) away from the abutment plate (59) and an end surface of the grinding sheet (55) away from the movable disk (54) is parallel to the end surface of the polished pipe.

4. A cold sawing machine according to claim 3, characterized in that: The lifting assembly (53) comprises a support frame (532), a lifting cylinder (531) being mounted on the upper end of the support frame (532), and a telescopic end of the lifting cylinder (531) being fixedly connected to the placement plate (51).

5. A cold sawing machine according to claim 4, characterized in that: The rotating assembly (58) comprises a sliding rod (581) inserted into the positioning frame (52); a driving motor (582) is fixedly connected to the upper portion of the placement plate (51); one end of the sliding rod (581) is fixedly connected to an output shaft of the driving motor (582); and the other end of the sliding rod (581) is fixedly connected to the movable disk (54).

6. A cold sawing machine according to claim 5, characterized in that: The driving assembly (57) comprises a plurality of rotating motors (571) fixedly connected to the upper end of the placement plate (51); the rotating motors (571) correspond one to one with the grinding sheets (55) and are fixedly connected to the grinding sheets (55).

7. A cold sawing machine according to claim 6, characterized in that: The connecting assembly (56) comprises two staggered electric telescopic rods (561), one end of each electric telescopic rod (561) being hinged on the movable disk (54), and the other end of each electric telescopic rod (561) being provided with an arc-shaped piece (562), and one end of each of the two electric telescopic rods (561) being away from the movable disk (54) being hinged on an outer arc surface of the arc-shaped piece (562), and the rotating motor (571) being fixedly connected to the outer arc surface of the arc-shaped piece (562), and an output shaft of the rotating motor (571) passing through the arc-shaped piece (562) and being fixedly connected to the grinding plate (55).

8. A cold sawing machine according to claim 1, characterized in that: A retraction platform (6) is provided on the side of the limit plate (2) away from the positioning block (3), and a push-back cylinder (101) is fixedly connected to the retraction platform (6). A slide plate (7) is fixedly connected to the telescopic end of the push-back cylinder (101), and the slide plate (7) is slidably connected to the retraction platform (6). A positioning plate (8) is fixedly connected to the upper end of the slide plate (7), and a locking plate (10) is provided on one side of the positioning plate (8). A locking cylinder (9) for driving the locking plate (10) to press the steel pipe against the positioning plate (8) is installed on the upper end of the slide plate (7).

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