Reciprocating type copper bar cutting machine and copper bar saw cutting machining method using same

Abstract

The invention relates to the technical field of copper bar cutting, and discloses a reciprocating type copper bar cutting machine and a copper bar sawing machining method using the reciprocating type copper bar cutting machine, and the reciprocating type copper bar cutting machine comprises a circular saw blade, a cutting table, a saw blade moving unit, a conveying unit, a copper bar positioning and measuring unit and a main control unit. By adopting the rectangular reciprocating saw cutting route, the circular saw blade with the small diameter can be used for saw cutting of the copper bar with the large section, the circular saw blade with the diameter slightly larger than the saw cutting width of the copper bar can be used for saw cutting of the copper bar, meanwhile, saw cutting is more efficient, segmented saw cutting can be completed without frequent reset, and the saw cutting efficiency is improved. The circular saw blade can efficiently saw copper bars with the diameter similar to that of the circular saw blade, and the problems that the circular saw blade with the small diameter is low in saw cutting efficiency and cannot be efficiently used for saw cutting production of copper bars with large sections are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of copper rod cutting, and particularly to a reciprocating copper rod cutting machine and a copper rod sawing and cutting method using the same. Background Art

[0002] In the processing of copper rods, the cutting process of copper rods has always been a key link in the production process. The traditional copper rod cutting method mainly uses a circular saw blade for sawing. However, as the cross-sectional area of the copper rod increases, the traditional method faces problems such as low efficiency and high cost.

[0003] At present, there are various copper rod cutting devices on the market, such as automatic copper rod cutting machines, numerical control copper rod cutting machines, etc. These devices improve production efficiency and cutting accuracy through automatic feeding, positioning, and cutting.

[0004] However, the existing copper rod cutting devices still have some deficiencies when dealing with copper rods used in hot rolling production. For copper rods with a relatively large cross-sectional area, the traditional circular saw blade requires a diameter several times the width of the copper rod to effectively match the production cutting efficiency. The increase in the diameter of the circular saw blade leads to an increase in the overall weight of the device, and the supporting motor and support device need to be strengthened, resulting in a high overall cost of using the device.

[0005] Therefore, there is an urgent need for a new copper rod cutting method that can reduce equipment costs and improve production efficiency while ensuring cutting efficiency and accuracy. Summary of the Invention

[0006] Aiming at the above defects, the purpose of the present invention is to provide a reciprocating copper rod cutting machine and a copper rod sawing and cutting method using the same, so as to solve the problem that the cutting machine cannot be effectively applied to the cutting production of copper rods with a larger cross-section using a circular saw blade with a smaller diameter.

[0007] To achieve this purpose, the present invention adopts the following technical solutions:

[0008] A reciprocating copper bar cutting machine, comprising a circular saw blade, a cutting table, a saw blade moving unit, a conveying unit, a copper bar positioning and measuring unit, and a main control unit; the circular saw blade is arranged on one side of the cutting table in the X direction, the conveying unit is arranged on the other side of the cutting table in the X direction, and the length direction of the conveying unit is arranged along the X direction. The supporting surface of the conveying unit is flush with the working surface of the cutting table. The conveying unit is used for positioning the copper bar in the X direction and for conveying the copper bar to be cut to the working surface of the cutting table in the X direction; the saw blade moving unit is installed on the upper side of the cutting table in the Z direction, and the saw blade moving unit is used for driving the circular saw blade to reciprocate in the Y and Z directions; the copper bar positioning and measuring unit is installed on the working surface of the cutting table, and the copper bar positioning and measuring unit is used for limiting the copper bar to be cut, and the copper bar positioning and measuring unit is also used for measuring the width d2 and height h2 of the copper bar, and for sending the measurement results to the main control unit; the main control unit is used for controlling the working state of the copper bar positioning and measuring unit, and for controlling the movement of the saw blade moving unit according to the measurement results, and is also used for controlling the rotation of the circular saw blade.

[0009] Preferably, it further includes a saw blade guard and a guard motor. The saw blade guard is rotatably installed on the saw blade moving unit and sleeved outside the circular saw blade. The saw blade guard is a semi-circular cover body. The straight edge of the semi-circular cover body is arranged in the Y direction. A part of the circular saw blade is arranged inside the saw blade guard, and the center of the circular saw blade is located inside the saw blade guard. The guard motor is used for driving the saw blade guard to rotate around the saw blade.

[0010] Preferably, it further includes a sawdust collection pipe, a filter, and a vacuum pump. A sawdust collection hole is provided on the saw blade guard. One end of the sawdust collection pipe is connected to the saw blade guard through the sawdust collection hole, the other end of the sawdust collection pipe is connected to the filter, and the filter is connected to the vacuum pump.

[0011] Preferably, the sawdust collection hole is arranged on the rear side of the saw blade guard along the sawing direction. The included angle a between the line connecting the center of the sawdust collection hole and the center of the circular saw blade and the sawing direction is 10 to 30°.

[0012] Preferably, it further includes a blower and an air cooling pipe. An air cooling port is provided on the saw blade guard. One end of the air cooling pipe is connected to the saw blade guard through the air cooling port, and the other end of the air cooling pipe is connected to the blower.

[0013] Preferably, the air cooling port is arranged on the front side of the saw blade guard along the sawing direction, and the air outlet direction of the air cooling port is parallel to the sawing direction.

[0014] Preferably, the copper bar positioning and measuring unit includes a first limiting block, a first positioning block, a first distance sensor, a first oil pump, a second limiting block, a second positioning block, a second distance sensor and a second oil pump. The first limiting block and the first positioning block are oppositely arranged along the positive Y direction. The first oil pump is used to push the first positioning block to move away from or close to the first limiting block. The first distance sensor is used to measure the moving distance of the first positioning block. The second limiting block and the second positioning block are oppositely arranged along the positive Z direction. The second oil pump is used to push the second positioning block to move away from or close to the second limiting block. The second distance sensor is used to measure the moving distance of the second positioning block;

[0015] The first distance sensor, the first oil pump, the second distance sensor and the second oil pump are electrically connected to the main control unit.

[0016] Preferably, the conveying unit includes a copper bar distance sensor and a plurality of electric rollers. The electric rollers are used to support and convey the copper bar along the X direction to the working surface of the cutting table. The copper bar distance sensor is used to measure the moving distance of the copper bar along the X direction. The copper bar distance sensor and the electric rollers are electrically connected to the main control unit.

[0017] Preferably, it further includes a temperature sensor. The temperature sensor is electrically connected to the main control unit. The temperature sensor is used to measure the real-time temperature of the circular saw blade. Both the circular saw blade and the saw blade moving unit are driven by servo motors.

[0018] A copper bar sawing and processing method using the above reciprocating copper bar cutting machine includes the following steps:

[0019] a) Obtain the radius r of the circular saw blade, the cutting length, the cutting allowance d1 in the Y direction and the cutting allowance h1 in the Z direction input in advance;

[0020] b) Clamp the copper bar to be cut through the copper bar positioning and measuring unit, and obtain the width d2 of the copper bar to be cut in the Y direction and the height h2 in the Z direction;

[0021] c) Calculate the moving distance d3 in the Y direction = d2 + 2d1 + 2r, the cutting height h3 of the forward stroke in the Z direction = 0.5h2 + h1 - r, and the cutting height h4 of the return stroke in the Z direction = 0.5h2 - h1 + r, so as to obtain the rectangular sawing route;

[0022] d) Keep the circular saw blade rotating and move the circular saw blade along a rectangular sawing path. Drive the circular saw blade to move along the Z direction first, so that the highest point of the circular saw blade is higher than half of the height of the copper rod, and the center of the circular saw blade is lower than the lowest point of the copper rod. Then move closer to the copper rod along the Y direction and perform sawing to achieve sawing of the lower half of the cross-section of the copper rod. When the circular saw blade moves beyond the width range of the copper rod, the saw blade moving unit drives the circular saw blade to move upward along the Z direction, so that the lowest point of the circular saw blade is lower than half of the height of the copper rod, and the center of the circular saw blade is higher than the highest point of the copper rod. Then move closer to the copper rod along the Y direction and perform sawing. Finally, drive the circular saw blade to move along the Z direction and return to the height of the first sawing.

[0023] e) Move the copper rod to be cut forward by a cutting length along the X direction, obtain the actual distance of the copper rod to be cut along the X direction through the conveying unit 4, and check whether the movement of the copper rod is in place.

[0024] f) Return to step b) and loop again.

[0025] g) When the conveying unit cannot move the copper rod in place and it is obtained that the actual distance of the copper rod is not in place, stop running.

[0026] The technical solution provided by the present invention may include the following beneficial effects:

[0027] 1. By adopting a rectangular reciprocating sawing path, the invention enables a circular saw blade with a smaller diameter to be used for sawing a copper rod with a larger cross-section. A circular saw blade with a diameter slightly larger than the sawing width of the copper rod can complete the sawing of the copper rod. At the same time, the sawing is more efficient and does not require frequent resetting to complete segmented sawing, enabling the circular saw blade to efficiently saw a copper rod with a size similar to its diameter, and solving the problem that a circular saw blade with a smaller diameter has low sawing efficiency and cannot be efficiently applied to the sawing production of a copper rod with a larger cross-section.

[0028] 2. When a circular saw blade with a smaller diameter is used for sawing, the stability is better, the sawing accuracy is higher. At the same time, the thickness of the circular saw blade is smaller, the saw kerf is narrower, and the sawing consumption is less. When used for sawing a copper rod with a larger cross-section and a shorter rod length in hot rolling production, the copper consumption for sawing is reduced, and the production cost is significantly decreased.

[0029] 3. The saw blade guard can rotate reciprocally to cooperate with the change of the cutting direction of the circular saw blade, guide the flying direction of the sawdust, prevent the sawdust from splashing everywhere, facilitate the collection of sawdust, protect the circular saw blade at the same time, and improve safety. The straight edge of the semi-circular shape of the saw blade guard is arranged along the Y direction, maximizing the cutting range of the circular saw blade.

[0030] 4. By providing negative pressure through a vacuum pump, the sawdust is guided and discharged through the sawdust collection holes on the saw blade guard, further reducing the splashing sawdust and reducing the sawdust from affecting the sawing accuracy.

[0031] The sawdust collection hole is arranged at the rear in the cutting direction, which is convenient for guiding the sawdust and preventing the sawdust from being re-involved into the circular saw blade, thus affecting the cutting accuracy.

[0032] Air at room temperature is blown in by a blower to form cooling air to cool the circular saw blade, preventing the circular saw blade from overheating and affecting its service life. When using a circular saw blade with a smaller diameter to cut a copper rod, since the cutting stroke is relatively long, the circular saw blade is prone to heat up. Cooling the circular saw blade can maintain and improve the cutting efficiency without affecting the service life of the circular saw blade.

[0033] The cooling air blown out from the air cooling port blows through the circular saw blade from the front side and then is discharged from the sawdust collection port at the rear side, which is convenient for cooperating with a vacuum pump to collect the sawdust. The air outlet direction is set opposite to the rotation direction of the saw blade to form a turbulent flow and increase the heat exchange efficiency.

[0034] 5. The copper rod is clamped along the Y direction by the first limit block and the first positioning block. The first distance sensor measures the distance that the first positioning block moves to obtain the maximum width of the copper rod along the Y direction. The second limit block and the second positioning block clamp the copper rod from the Z direction. The second distance sensor measures the distance that the second positioning block moves to obtain the maximum height of the copper rod along the Z direction. The main control unit calculates the rectangular sawing route of the circular saw blade based on the obtained maximum width and maximum height, realizing high-efficiency automatic cutting.

[0035] 6. Through precise calculation and control, the automatic positioning and sawing of the copper rod are realized, greatly improving the cutting accuracy and sawing efficiency. At the same time, this processing method also has the function of circular cutting, and can continuously saw the copper rod until the remaining length of the copper rod cannot meet the cutting requirements. It has a high degree of automation, reduces manual intervention, and lowers the labor intensity. Description of the Drawings

[0036] Figure 1 It is a schematic three-dimensional structure diagram of an embodiment of the present invention.

[0037] Figure 2 It is a schematic three-dimensional structure diagram of an embodiment of the present invention.

[0038] Figure 3 It is a schematic structure diagram of the saw blade guard of an embodiment of the present invention, and the arrow indicates the cutting direction.

[0039] Figure 4 It is a schematic diagram of the saw blade, copper rod and rectangular sawing route of an embodiment of the present invention, and the dotted line is the rectangular sawing route.

[0040] Among them: circular saw blade 1, cutting table 2, saw blade moving unit 3, lifting block 31, column 32, first screw rod 33, moving block 34, beam 35, second screw rod 36, saw blade connecting frame 37, conveying unit 4, electric roller 41, copper rod positioning and measuring unit 5, first limit block 51, first positioning block 52, first distance sensor 53, first oil pump 54, second limit block 55, second positioning block 56, second distance sensor 57, saw blade guard 6, saw dust collection hole 601, air cooling port 602, guard motor 61, saw dust collection pipe 71, air cooling pipe 72, copper rod distance sensor 8, copper rod 9. DETAILED DESCRIPTION

[0041] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0042] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as limiting the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more such features, and are used to distinguish between the described features, without distinction of order or importance.

[0043] In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0044] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0045] The following describes embodiments of the present invention in conjunction with the accompanying drawings.

[0046] like Figure 1 and Figure 2As shown, a reciprocating copper rod cutting machine includes a circular saw blade 1, a cutting table 2, a saw blade moving unit 3, a conveying unit 4, a copper rod positioning and measuring unit 5 and a main control unit; the circular saw blade 1 is arranged on one side of the cutting table 2 in the X direction, the conveying unit 4 is arranged on the other side of the cutting table 2 in the X direction, and the length direction of the conveying unit 4 is arranged along the X direction, the supporting surface of the conveying unit 4 is flush with the working table of the cutting table 2, the conveying unit 4 is used to position the copper rod along the X direction, and the conveying unit 4 is also used to convey the copper rod to be cut to the working table of the cutting table 2 along the X direction; the saw blade moving unit 3 is arranged on the Installed on the upper side of the cutting table 2 in the Z direction, the saw blade moving unit 3 is used to drive the circular saw blade 1 to move back and forth along the Y and Z directions; the copper rod positioning and measuring unit 5 is installed on the working surface of the cutting table 2, and the copper rod positioning and measuring unit 5 is used to limit the copper rod to be cut, and the copper rod positioning and measuring unit 5 is also used to measure the copper rod width d2 and height h2, and to send the measurement results to the main control unit; the main control unit is used to control the working state of the copper rod positioning and measuring unit 5, and to control the movement of the saw blade moving unit 3 according to the measurement results, and to control the rotation of the circular saw blade 1.

[0047] The length direction of the copper rod is placed on the conveying unit 4 along the X direction, and the copper rod positioning and measuring unit 5 clamps the copper rod in the Y and Z directions, and measures the width d2 and height h2 of the copper rod according to the clamping distance. The main control unit drives the circular saw blade 1 to rotate, and controls the saw blade moving unit 3 according to the measurement results, driving the circular saw blade 1 to move along the Z direction first, so that the highest point of the circular saw blade 1 is higher than half the height of the copper rod, and the center of the circular saw blade 1 is lower than the lowest point of the copper rod, and then moves close to the copper rod along the Y direction and performs sawing, so as to achieve sawing of the lower half of the copper rod cross section. When the circular saw blade 1 moves beyond the width range of the copper rod, the saw blade moving unit 3 drives the circular saw blade 1 to move upward along the Z direction, so that the lowest point of the circular saw blade 1 is lower than half the height of the copper rod, and the center of the circular saw blade 1 is higher than the highest point of the copper rod, and then moves close to the copper rod along the Y direction and performs sawing, so as to achieve sawing of the upper half of the copper rod cross section, thereby completing the sawing of the entire cross section.

[0048] In the prior art, in order to ensure sawing efficiency, it is usually necessary to use a circular saw blade 1 with a diameter of more than 3 times the width of the copper rod to be sawed to saw the copper rod. However, for the copper rod used in hot rolling production, the cross-sectional area of the copper rod is large, and the circular saw blade 1 that needs to be used is larger in diameter. In order to ensure rigidity, the thickness of the saw blade is increased, and the overall weight is increased. The supporting motor and other stabilizing devices must be reinforced, and the overall equipment cost is high.

[0049] By adopting a rectangular reciprocating sawing route, the present invention enables a circular saw blade 1 with a smaller diameter to be used for sawing copper bars with a larger cross-section. A circular saw blade 1 with a diameter slightly larger than the sawing width of the copper bar can be used to complete the sawing of the copper bar. At the same time, the sawing is more efficient, and segmented sawing can be completed without frequent resetting, enabling the circular saw blade 1 to efficiently saw copper bars with dimensions close to its diameter, solving the problem that the circular saw blade 1 with a smaller diameter has low sawing efficiency and cannot be efficiently applied to the sawing production of copper bars with a larger cross-section.

[0050] It is worth noting that when the circular saw blade 1 with a smaller diameter is used for sawing, the stability is better, the sawing accuracy is higher. At the same time, the thickness of the circular saw blade 1 is smaller, the saw kerf is narrower, and the sawing consumption is less. When used for sawing copper bars with a larger cross-section and a shorter bar length in hot rolling production, the copper consumption for sawing is reduced, and the production cost is significantly decreased.

[0051] Preferably, the saw blade moving unit 3 includes a lifting assembly, a horizontal moving assembly, and a saw blade connecting frame 37. The lifting assembly is installed on the cutting table 2. The output end of the lifting assembly is installed with the horizontal moving assembly. One end of the saw blade connecting frame 37 is connected to the output end of the horizontal moving assembly, and the other end of the saw blade connecting frame 37 is rotatably installed with the circular saw blade 1.

[0052] Preferably, the lifting assembly includes a lifting block 31, a column 32, a first lead screw 33, and a first motor (the structure is omitted in the drawing). The column 32 is installed on the cutting table 2. The first lead screw 33 is rotatably installed on the cutting table 2. The length directions of the column 32 and the first lead screw 33 are arranged along the Z direction. The lifting block 31 is sleeved on the column 32. The horizontal moving assembly is installed on the lifting block 31. The first motor is used to drive the first lead screw 33 to rotate, and the rotation of the first lead screw 33 is used to drive the lifting block 31 to drive the horizontal moving assembly to reciprocate along the Z direction.

[0053] Preferably, the horizontal moving assembly includes a moving block 34, a cross beam 35, a second lead screw 36, and a second motor (the structure is omitted in the drawing). The cross beam 35 is installed on the lifting block 31. The second lead screw 36 is rotatably installed on the lifting block 31. The length directions of the cross beam 35 and the second lead screw 36 are arranged along the Y direction. The moving block 34 is sleeved on the cross beam 35. One end of the saw blade connecting frame 37 is connected to the moving block 34. The second motor is used to drive the second lead screw 36 to rotate, and the rotation of the second lead screw 36 is used to drive the moving block 34 to drive the saw blade connecting frame 37 and the circular saw blade 1 thereon to reciprocate along the Y direction.

[0054] The saw blade moving unit 3 significantly improves the flexibility and precision of the cutting operation. By integrating the lifting component and the horizontal moving component, the circular saw blade 1 can move freely in the Z direction and the Y direction, enabling the circular saw blade 1 to be quickly and accurately positioned for precise cutting of the copper rod. The lifting component utilizes the cooperation of the first lead screw 33 and the first motor to ensure that the lifting block 31 and the horizontal moving component it carries can smoothly, quickly, and accurately adjust the height along the Z direction, thus adapting to the cutting requirements of copper rods at different heights and quickly reaching the specified cutting height. The horizontal moving component, driven by the second lead screw 36 and the second motor, enables the saw blade connecting frame 37 and the circular saw blade 1 thereon to move flexibly along the Y direction, achieving precise positioning and cutting of the copper rod. In addition, this design is compact, easy to operate, effectively improves the cutting efficiency and operation safety, reduces the complexity and labor intensity of manual operation, and provides strong support for automated cutting operations.

[0055] Preferably, there are two columns 32, and the two columns 32 are arranged opposite to each other in the positive X direction. The first lead screw 33 is arranged between the two columns 32.

[0056] Preferably, there are two sets of lifting components, and the two sets of lifting components are arranged opposite to each other in the positive Y direction. The horizontal moving component is arranged between the two sets of lifting components.

[0057] Preferably, there are two cross beams 35, and the two cross beams 35 are arranged opposite to each other in the positive X direction. The second lead screw 36 is arranged between the two cross beams 35.

[0058] By arranging the lifting components in pairs, and the columns 32 and cross beams 35 in pairs, the movement of the circular saw blade 1 is made more stable, the cutting precision is improved, and the cutting efficiency is increased.

[0059] Preferably, it further includes a saw blade guard 6 and a guard motor 61. The saw blade guard is rotatably mounted on the saw blade moving unit 3 and sleeved outside the circular saw blade 1. The saw blade guard 6 is a semi-circular cover body, the straight edge of the semi-circular cover body is arranged in the Y direction, a part of the circular saw blade 1 is arranged inside the saw blade guard 6, and the center of the circular saw blade 1 is located inside the saw blade guard. The guard motor 61 is used to drive the saw blade guard to rotate around the saw blade.

[0060] The saw blade guard can rotate reciprocally to cooperate with the change of the cutting direction of the circular saw blade 1, guide the flying direction of the sawdust, prevent the sawdust from flying everywhere, facilitate the collection of sawdust, and at the same time protect the circular saw blade 1 and improve safety. The straight edge of the semi-circular shape of the saw blade guard 6 is arranged in the Y direction, maximizing the cutting range of the circular saw blade 1.

[0061] In one embodiment, the rectangular cutting path circulates in the clockwise direction. When the circular saw blade 1 saws the lower side of the cross-section of the copper rod along the Y direction, the arc-shaped side of the saw blade guard is located below the circular saw blade 1. When the circular saw blade 1 moves upward along the Z direction, the saw blade guard rotates in the clockwise direction, so that the arc-shaped side of the saw blade guard rotates above the circular saw blade 1. Then, the circular saw blade 1 saws the upper side of the cross-section of the copper rod along the Y direction. When the sawing is completed, when the circular saw blade 1 moves downward along the Z direction, the saw blade guard rotates counterclockwise to reset, so that the arc-shaped side of the saw blade guard is again located below the circular saw blade 1. It rotates back and forth like this, cooperating with the circular saw blade 1 to complete the cutting of the copper rod.

[0062] Preferably, as Figure 3 shown, it further includes a sawdust collection pipe 71, a filter and a vacuum pump. A sawdust collection hole 601 is provided on the saw blade guard 6. One end of the sawdust collection pipe 71 is connected to the saw blade guard 6 through the sawdust collection hole 601. The other end of the sawdust collection pipe 71 is connected to the filter, and the filter is connected to the vacuum pump.

[0063] By providing negative pressure through the vacuum pump, the sawdust is guided and discharged through the sawdust collection hole 601 on the saw blade guard 6, further reducing the flying sawdust and at the same time reducing the sawdust to avoid affecting the sawing accuracy.

[0064] Preferably, the sawdust collection hole 601 is provided on the rear side of the saw blade guard 6 along the sawing direction. The included angle a between the line connecting the center of the sawdust collection hole 601 and the center of the circular saw blade 1 and the sawing direction is 10 to 30°.

[0065] The sawdust collection hole 601 is provided behind the cutting direction, which is convenient for guiding the sawdust and avoiding the sawdust being re-involved into the circular saw blade 1 and affecting the cutting accuracy.

[0066] Preferably, it further includes a blower and an air cooling pipe 72. An air cooling port 602 is provided on the saw blade guard 6. One end of the air cooling pipe 72 is connected to the saw blade guard 6 through the air cooling port 602. The other end of the air cooling pipe 72 is connected to the blower.

[0067] By blowing normal-temperature air through the blower, a cooling air flow is formed to cool the circular saw blade 1, avoiding the overheating of the circular saw blade 1 and affecting its service life. When using a circular saw blade 1 with a smaller diameter to cut the copper rod, since the cutting stroke is relatively long, the circular saw blade 1 is prone to heat. Cooling the circular saw blade 1 can maintain and improve the cutting efficiency without affecting the service life of the circular saw blade 1.

[0068] Preferably, the air cooling port 602 is provided on the front side of the saw blade guard 6 along the sawing direction, and the air outlet direction of the air cooling port 602 is parallel to the sawing direction.

[0069] The cooling air blown out from the air cooling port 602 blows past the circular saw blade 1 from the front side and then is discharged from the sawdust collection port at the rear side, which is convenient for collecting sawdust in cooperation with a vacuum pump. The air outlet direction is set opposite to the rotation direction of the saw blade to form a turbulent flow and increase the heat exchange efficiency.

[0070] Preferably, the copper bar positioning and measuring unit 5 includes a first limit block 51, a first positioning block 52, a first distance sensor 53, a first oil pump 54, a second limit block 55, a second positioning block 56, a second distance sensor 57 and a second oil pump. The first limit block 51 and the first positioning block 52 are oppositely arranged along the positive Y direction. The first oil pump 54 is used to push the first positioning block 52 to move away from or close to the first limit block 51. The first distance sensor 53 is used to measure the moving distance of the first positioning block 52. The second limit block 55 and the second positioning block 56 are oppositely arranged along the positive Z direction. The second oil pump is used to push the second positioning block 56 to move away from or close to the second limit block 55. The second distance sensor 57 is used to measure the moving distance of the second positioning block 56.

[0071] The first distance sensor 53, the first oil pump 54, the second distance sensor 57 and the second oil pump are electrically connected to the main control unit.

[0072] In an embodiment, the first limit block 51 is fixed on one side along the Y direction above the working surface of the cutting table 2, the second positioning block is movably arranged on the other side along the Y direction above the working surface of the cutting table 2, the second limit block is embedded and fixed in the cutting table 2 and is flush with the working surface of the cutting table 2, and the second positioning block is movably arranged above the second limit block along the Z direction.

[0073] The copper bar is clamped along the Y direction by the first limit block 51 and the first positioning block 52. The first distance sensor 53 measures the moving distance of the first positioning block 52 to obtain the maximum width of the copper bar along the Y direction. The second limit block 55 and the second positioning block 56 clamp the copper bar from the Z direction. The second distance sensor 57 measures the moving distance of the second positioning block 56 to obtain the maximum height of the copper bar along the Z direction. The main control unit calculates the rectangular sawing route of the circular saw blade 1 according to the obtained maximum width and maximum height, realizing high-efficiency automatic cutting.

[0074] Preferably, the conveying unit 4 includes a copper bar distance sensor 8 and a plurality of electric rollers 41. The electric rollers 41 are used to support and convey the copper bar along the X direction to the working surface of the cutting table 2. The copper bar distance sensor 8 is used to measure the moving distance of the copper bar along the X direction. The copper bar distance sensor 8 and the electric rollers 41 are electrically connected to the main control unit.

[0075] After the copper bar is placed on the electric roller 41 of the conveying unit 4 by an external crane, the electric roller 41 is manually controlled to move the copper bar to the cutting position of the circular saw blade 1. The copper bar distance sensor 8 measures the distance that the copper bar extends out of the cutting position in the X direction. By manually inputting the sawing length, after each section of the copper bar is sawn, the main control unit controls the electric roller 41 to convey forward in the X direction according to the sawing length, realizing full-automatic sawing control and improving the overall sawing efficiency.

[0076] Preferably, it further includes a temperature sensor. The temperature sensor is electrically connected to the main control unit. The temperature sensor is used to measure the real-time temperature of the circular saw blade 1. Both the circular saw blade 1 and the saw blade moving unit 3 are driven by servo motors.

[0077] By manually presetting the rotation speed, sawing moving speed and protection temperature of the circular saw blade 1, and measuring the temperature of the circular saw blade 1 in real time. When the temperature of the circular saw blade 1 is higher than the protection temperature, the rotation speed and sawing moving speed of the circular saw blade 1 are synchronously reduced, reducing the frictional heat generation of the saw blade and the feed amount of each cut, prolonging the service life of the saw blade. When the temperature of the saw blade drops, the set rotation speed and sawing moving speed are gradually increased again to improve the sawing efficiency.

[0078] A copper bar sawing and processing method using the above reciprocating copper bar cutting machine includes the following steps:

[0079] a) Obtain the radius r, cutting length, Y-direction cutting allowance d1 and Z-direction cutting allowance h1 of the circular saw blade 1 input in advance;

[0080] b) Clamp the copper bar 9 to be cut by the copper bar positioning and measuring unit 5, and obtain the width d2 of the copper bar 9 to be cut in the Y direction and the height h2 in the Z direction;

[0081] c) Calculate that the moving distance d3 in the Y direction = d2 + 2d1 + 2r, the cutting height h3 in the Z direction for the forward stroke = 0.5h2 + h1 - r, and the cutting height h4 in the Z direction for the return stroke = 0.5h2 - h1 + r, and obtain the rectangular sawing route (as shown by the rectangular dotted line frame in Figure 4 is the rectangular sawing route);

[0082] d) Keep the circular saw blade 1 rotating and move the circular saw blade 1 along a rectangular sawing path. Drive the circular saw blade 1 to move along the Z direction first, so that the highest point of the circular saw blade 1 is higher than half of the height of the copper rod, and the center of the circular saw blade 1 is lower than the lowest point of the copper rod. Then move closer to the copper rod along the Y direction and perform sawing to achieve sawing of the lower half of the cross-section of the copper rod. When the circular saw blade 1 moves beyond the width range of the copper rod, the saw blade moving unit 3 drives the circular saw blade 1 to move upward along the Z direction, so that the lowest point of the circular saw blade 1 is lower than half of the height of the copper rod, and the center of the circular saw blade 1 is higher than the highest point of the copper rod. Then move closer to the copper rod along the Y direction and perform sawing. Finally, drive the circular saw blade 1 to move along the Z direction and return to the height of the first sawing;

[0083] e) Move the copper rod to be cut forward by a cutting length along the X direction, obtain the actual distance of the copper rod to be cut along the X direction through the conveying unit 4, and check whether the movement of the copper rod is in place;

[0084] f) Return to step b) and loop again;

[0085] g) When the conveying unit 4 cannot move the copper rod in place and it is obtained that the actual copper rod distance is not in place, stop running.

[0086] In a specific embodiment, after manually placing the copper rod on the conveying unit 4, manually operate the conveying unit 4 to adjust the position of the copper rod, and extend the rod head part of the copper rod to be removed out of the cutting table 2 according to the actual situation. After inputting the specified cutting length, start the reciprocating copper rod cutting machine to start full-automatic sawing. Among them, the first sawing first saws and removes the rod head part of the copper rod, and then automatically adjusts and circularly saws according to the cutting length. When the copper rod cutting is completed and the remaining copper rod is too short for the conveying unit 4 to continue adjusting the copper rod distance, the reciprocating copper rod cutting machine automatically stops.

[0087] Through precise calculation and control, automatic positioning and sawing of the copper rod are realized, greatly improving the cutting accuracy and sawing efficiency. At the same time, this processing method also has the function of circular cutting, and can continuously saw the copper rod until the remaining copper rod length cannot meet the cutting requirements. It has a high degree of automation, reduces manual intervention, and reduces the labor intensity.

[0088] Other components and operations according to the embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail here.

[0089] Throughout this specification, reference to terms such as "embodiment" or "example" indicates that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0090] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A reciprocating copper bar cutting machine, characterized in that: It includes a circular saw blade, a cutting table, a saw blade moving unit, a conveying unit, a copper bar positioning and measuring unit, and a main control unit; the circular saw blade is arranged on one side of the cutting table in the X direction, the conveying unit is arranged on the other side of the cutting table in the X direction, and the length direction of the conveying unit is arranged along the X direction. The supporting surface of the conveying unit is flush with the working surface of the cutting table. The conveying unit is used to position the copper bar along the X direction and also used to convey the copper bar to be cut to the working surface of the cutting table along the X direction; the saw blade moving unit is installed on the upper side of the cutting table in the Z direction, and the saw blade moving unit is used to drive the circular saw blade to reciprocate in the Y and Z directions; the copper bar positioning and measuring unit is installed on the working surface of the cutting table, and the copper bar positioning and measuring unit is used to limit the copper bar to be cut. The copper bar positioning and measuring unit is also used to measure the width d2 and height h2 of the copper bar, and to send the measurement results to the main control unit; the main control unit is used to control the working state of the copper bar positioning and measuring unit, and to control the movement of the saw blade moving unit according to the measurement results, and is also used to control the rotation of the circular saw blade.

2. The reciprocating copper bar cutting machine according to claim 1, wherein: It further includes a saw blade guard and a guard motor. The saw blade guard is rotatably installed on the saw blade moving unit and sleeved outside the circular saw blade. The saw blade guard is a semi-circular cover body. The straight edge of the semi-circular cover body is arranged in the Y direction. A part of the circular saw blade is arranged inside the saw blade guard, and the center of the circular saw blade is located inside the saw blade guard. The guard motor is used to drive the saw blade guard to rotate around the saw blade.

3. The reciprocating copper bar cutting machine according to claim 2, wherein: It further includes a sawdust collection pipe, a filter, and a vacuum pump. A sawdust collection hole is provided on the saw blade guard. One end of the sawdust collection pipe is connected to the saw blade guard through the sawdust collection hole, the other end of the sawdust collection pipe is connected to the filter, and the filter is connected to the vacuum pump.

4. The reciprocating copper bar cutting machine according to claim 3, wherein: The sawdust collection hole is arranged at the rear side of the saw blade guard along the sawing direction. The included angle a between the line connecting the center of the sawdust collection hole and the center of the circular saw blade and the sawing direction is 10 to 30°.

5. The reciprocating copper bar cutting machine according to claim 2, wherein: It further includes a blower and an air cooling pipe. An air cooling port is provided on the saw blade guard. One end of the air cooling pipe is connected to the saw blade guard through the air cooling port, and the other end of the air cooling pipe is connected to the blower.

6. The reciprocating copper bar cutting machine according to claim 5, wherein: The air cooling port is arranged at the front side of the saw blade guard along the sawing direction, and the air outlet direction of the air cooling port is parallel to the sawing direction.

7. The reciprocating copper bar cutting machine according to claim 1, wherein: The copper bar positioning and measuring unit includes a first limit block, a first positioning block, a first distance sensor, a first oil pump, a second limit block, a second positioning block, a second distance sensor and a second oil pump. The first limit block and the first positioning block are oppositely arranged along the positive Y direction. The first oil pump is used to push the first positioning block to move away from or close to the first limit block. The first distance sensor is used to measure the moving distance of the first positioning block. The second limit block and the second positioning block are oppositely arranged along the positive Z direction. The second oil pump is used to push the second positioning block to move away from or close to the second limit block. The second distance sensor is used to measure the moving distance of the second positioning block; The first distance sensor, the first oil pump, the second distance sensor and the second oil pump are electrically connected to the main control unit.

8. A reciprocating copper bar cutting machine according to claim 1, characterized in that: The conveying unit includes a copper bar distance sensor and a plurality of electric rollers. The electric rollers are used to support and convey the copper bar along the X direction to the working surface of the cutting table. The copper bar distance sensor is used to measure the distance that the copper bar moves along the X direction. The copper bar distance sensor and the electric rollers are electrically connected to the main control unit.

9. The reciprocating copper bar cutting machine according to claim 1, characterized in that: It further includes a temperature sensor. The temperature sensor is electrically connected to the main control unit. The temperature sensor is used to measure the real-time temperature of the circular saw blade. Both the circular saw blade and the saw blade moving unit are driven by servo motors.

10. A method for sawing and processing copper rods, characterized in that, Using the reciprocating copper bar cutting machine according to any one of claims 1-9, includes the following steps: a) Obtain the radius r of the circular saw blade, the cutting length, the cutting allowance d1 in the Y direction and the cutting allowance h1 in the Z direction input in advance; b) Clamp the copper bar to be cut through the copper bar positioning and measuring unit, and obtain the width d2 of the copper bar to be cut in the Y direction and the height h2 in the Z direction; c) Calculate the moving distance d3 in the Y direction = d2 + 2d1 + 2r, the cutting height h3 of the forward stroke in the Z direction = 0.5h2 + h1 - r, the cutting height h4 of the return stroke in the Z direction = 0.5h2 - h1 + r, and obtain the rectangular sawing route; d) Keep the circular saw blade rotating, and move the circular saw blade according to the rectangular sawing route. Drive the circular saw blade to move first along the Z direction, so that the highest point of the circular saw blade is higher than half of the height of the copper bar, and the center of the circular saw blade is lower than the lowest point of the copper bar. Then move closer to the copper bar along the Y direction and perform sawing to realize the sawing of the lower half of the cross-section of the copper bar. When the circular saw blade moves beyond the width range of the copper bar, the saw blade moving unit drives the circular saw blade to move upward along the Z direction, so that the lowest point of the circular saw blade is lower than half of the height of the copper bar, and the center of the circular saw blade is higher than the highest point of the copper bar. Then move closer to the copper bar along the Y direction and perform sawing. Finally, drive the circular saw blade to move along the Z direction and return to the height of the first sawing; e) Move the copper bar to be cut forward by a cutting length along the X direction, obtain the actual distance of the copper bar to be cut along the X direction through the conveying unit 4, and check whether the movement of the copper bar is in place; f) Return to step b) and loop again; g) When the conveying unit cannot move the copper bar in place and the actual copper bar distance is not in place, stop running.

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