Multi-station floor horizontal type boring and milling machining automation line and using method thereof

Abstract

The invention relates to the technical field of numerical control machining, in particular to a multi-station floor horizontal type boring and milling machining automation line and a using method thereof.The multi-station floor horizontal type boring and milling machining automation line comprises a base, a U-shaped guide rail stand column is slidably installed in the base, and a boring and milling spindle box and a sliding frame are installed on the side face of the U-shaped guide rail stand column in an up-down sliding mode; the sliding frame comprises an adjustable sliding block, a U-shaped groove is formed in one side of the adjustable sliding block, the U-shaped groove is clamped in one side of the U-shaped guide rail stand column in a semi-surrounding mode, and the boring and milling spindle box is fixedly installed on the side, away from the U-shaped guide rail stand column, of the adjustable sliding block. The balance mechanism comprises a fixed pulley and a movable pulley, a rope is wound on the outer sides of the fixed pulley and the movable pulley, and one end of the rope is connected with the upper portion of the sliding frame; according to the invention, the stress on the two sides of the sliding frame is more uniform, so that the inclination of the sliding frame caused by the change of the gravity center of the boring and milling spindle box on the sliding frame is smaller, and the machining precision of the boring and milling spindle box is more convenient to control.

Description

Technical Field

[0001] This invention relates to the field of CNC machining technology, specifically to a multi-station floor-type horizontal boring and milling automatic line and its usage method. Background Technology

[0002] Horizontal boring and milling machines are ideal for heavy-duty machining due to their horizontal spindle structure and robust bed design, especially suitable for machining large, heavy workpieces or applications requiring large cutting volumes; they also have advantages such as low vibration during machining and good accuracy retention. Typically, for a more compact overall structure, the boring spindle of a horizontal boring and milling machine is mounted vertically on one side of the column (the sliding frame is mounted on the column, and the boring spindle is located on the sliding frame). The vertical movement of the boring spindle is driven by a ball screw. However, because the boring spindle will extend or retract during use, the weight distribution of the boring spindle will change during this process, causing the center of gravity of the sliding frame to change. This will cause the sliding frame to shift towards one side of the column, and this shift will affect the positioning and machining accuracy of the boring spindle. Summary of the Invention

[0003] Technical problems to be solved To address the aforementioned shortcomings of existing technologies, this invention provides a multi-station floor-standing horizontal boring and milling automatic line and its usage method. This effectively solves the problem in existing technologies where, for a more compact overall structure, the boring spindle is slidably mounted on one side of the column, and its vertical movement is driven by a ball screw. However, because the boring spindle extends or retracts during use, its weight distribution changes, causing a shift in the center of gravity of the sliding frame and resulting in a shift towards one side of the column. This shift affects the positioning and machining accuracy of the boring spindle.

[0004] Technical solution To achieve the above objectives, the present invention provides the following technical solution: This invention provides a multi-station floor-standing horizontal boring and milling automated line, including a base, a U-shaped guide rail column slidably mounted inside the base, a telescopic component for guiding the sliding of the U-shaped guide rail column inside the base, a boring and milling spindle box slidably mounted on the side of the U-shaped guide rail column, and further comprising: The sliding frame, with an L-shaped projection in the side view, is slidably mounted on one side of the U-shaped guide rail column to drive the boring and milling spindle box to move up and down. The sliding frame includes an adjustable slider, and a U-shaped groove is provided on one side of the adjustable slider. The U-shaped groove is semi-enclosed and locked on one side of the U-shaped guide rail column. The boring and milling spindle box is fixedly mounted on the side of the U-shaped guide rail column away from the adjustable slider. A balancing mechanism is provided to pull one side of the sliding frame to adjust the force balance on both sides of the sliding frame. The balancing mechanism includes a fixed pulley fixedly installed on the U-shaped guide rail column and a movable pulley that moves vertically along the side of the U-shaped guide rail column. Ropes are wound around the outside of the fixed pulley and the movable pulley, and one end of the ropes is connected to the top of the sliding frame. A hydraulic telescopic rod is provided on the side of the U-shaped guide rail column to drive the movable pulley to move up and down.

[0005] Furthermore, vertical guide rails are fixedly installed on both sides of the U-shaped guide rail column that are far apart from each other, and sliders are fixedly installed on the inner walls of both sides of the U-shaped groove that face each other, wherein the slider on one side of the inner wall of the U-shaped groove is slidably installed.

[0006] Furthermore, the U-shaped guide rail column is equipped with a lifting component for driving the sliding frame to move up and down. The lifting component includes a ball screw rotatably mounted on the U-shaped guide rail column. One end of the ball screw is driven by a lifting motor. The sliding frame includes an adjustable slider. A sleeve is fixedly mounted on the adjustable slider. One end of the ball screw passes through the sleeve. The lifting motor drives the ball screw to rotate, causing the adjustable slider to move up and down. A sliding connecting groove is integrally formed on the adjustable slider for the ball screw to pass through. The sleeve is located below the sliding connecting groove.

[0007] Furthermore, a parallel guide rail for sliding connection with an adjustable slider is fixedly provided on the side of the boring and milling spindle box. A first drive rod is rotatably mounted on the adjustable slider. The first drive rod is located directly below the boring and milling spindle box. The first drive rod is used to drive the boring and milling spindle box to slide along the parallel guide rail. A motor for driving the first drive rod to rotate is fixedly mounted on the adjustable slider.

[0008] Furthermore, a boring spindle is slidably mounted inside the boring and milling spindle box, and a second drive rod is rotatably mounted inside the boring and milling spindle box below the boring spindle. The second drive rod is used to drive the boring spindle to move along the parallel guide rail direction within the boring and milling spindle box.

[0009] Furthermore, the adjustable slider is provided with a front adjustment seat and a rear adjustment seat respectively, and an adjustment frame is fixedly installed above the front adjustment seat and the rear adjustment seat. The boring and milling spindle box and the first drive rod are both fixedly installed on the adjustment frame, and the adjustment frame is used to adjust the front and rear tilt angle of the boring and milling spindle box.

[0010] Furthermore, the rear adjustment seat includes a U-shaped seat fixedly mounted on an adjustable slider. A sliding seat is slidably mounted inside the U-shaped seat and supported at the bottom of the adjustment frame. A rear eccentric shaft passing through the sliding seat is provided on the side of the U-shaped seat. An adjustment motor is fixedly mounted on the adjustable slider. The adjustment motor drives the rear eccentric shaft to rotate through a screw. The rear eccentric shaft adjusts the vertical position of the rear end of the adjustment frame by rotating.

[0011] Furthermore, the structure of the front adjustment seat is the same as that of the rear adjustment seat. The front adjustment seat includes a front eccentric shaft, and the front adjustment seat adjusts the vertical position of the front end of the adjustment frame by rotating the front eccentric shaft.

[0012] Furthermore, it also includes a liquid nitrogen storage component, which includes a liquid nitrogen storage tank. The telescopic cylinder of the hydraulic telescopic rod is connected to the inside of the liquid nitrogen storage tank through a pipe. The liquid nitrogen storage tank is used to maintain a stable temperature of the medium inside the telescopic cylinder.

[0013] Furthermore, a processing table is provided on one side of the telescopic component along its length. The processing table is used to place the workpiece to be processed, and a driving component is provided at the bottom of the processing table to move the processing table closer to or away from the U-shaped guide rail column.

[0014] The specific steps for using a multi-station floor-type horizontal boring and milling automated line include the following: Step 1: First, place the workpiece to be processed on one side of the base, and make the surface of the workpiece to be processed face the boring and milling spindle box. Then fix the workpiece to be processed. Step 2: Next, the linear drive U-shaped guide column is moved so that the workpiece and the boring and milling spindle box on one side of the U-shaped guide column are on the same straight line, and the cutting tools on the boring and milling spindle box are changed at the same time. Step 3: Then, move the sliding frame up and down on the side of the U-shaped guide column so that the tool on the boring and milling spindle box on the sliding frame and the workpiece to be processed reach the same specified height. Step 4: Finally, drive the boring and milling spindle box to move toward the workpiece to be processed, so that the cutting tool on the boring and milling spindle box comes into contact with the workpiece to be processed.

[0015] Beneficial effects The technical solution provided by this invention has the following advantages compared with known public technologies: In this invention, a balancing mechanism is installed above the U-shaped guide rail column. When the sliding frame drives the boring and milling spindle box to move up and down, the rope of the balancing mechanism can be pulled on one side of the sliding frame. Then, the hydraulic telescopic rod can drive the movable pulley to move up or down. When the sliding frame drives the boring and milling spindle box to move upward, the hydraulic telescopic rod retracts, causing the movable pulley to move downward. This causes the rope to generate an upward pulling force on the sliding frame, assisting the sliding frame to move upward. This makes the force on both sides of the sliding frame more even, and reduces the tilt of the sliding frame caused by the change in the center of gravity of the boring and milling spindle box on the sliding frame. This makes it easier to control the machining accuracy of the boring and milling spindle box.

[0016] In this invention, by rotating and installing a second drive rod inside the boring and milling spindle box, the boring spindle can be easily driven to move along the length direction inside the boring and milling spindle box. The combined use of the first drive rod and the second drive rod can give the boring spindle a wider machining range and adapt to more complex machining needs.

[0017] In this invention, by setting a front adjustment seat and a rear adjustment seat on the adjustable slider respectively, during use, when the boring spindle is in the extended state, the position of the boring spindle's cutter head will tilt downward under the action of gravity. By setting the front adjustment seat and the rear adjustment seat respectively, the height of the front and rear ends of the adjustment frame can be adjusted, and the position of the boring spindle's cutter head can be adjusted to the original position, enabling more precise boring and milling machining.

[0018] In this invention, sliding seats are installed both above and below the U-shaped base, and a rear eccentric shaft is provided inside the U-shaped base to adjust the vertical position of the sliding seats. When it is necessary to adjust the vertical position of the rear end of the adjusting frame, the rear eccentric shaft can be rotated to change the support surface between the rear eccentric shaft and the sliding seats, thereby adjusting the vertical position of the rear end of the adjusting frame. In addition, the vertical position of the front end of the adjusting frame is adjusted in the same way as that of the rear end, by rotating the front eccentric shaft. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention without the base; Figure 3 This is a schematic diagram of the installation structure of the U-shaped guide rail column of the present invention; Figure 4 This is a schematic diagram of the mounting structure of the boring and milling spindle box on the side of the U-shaped guide rail column of the present invention; Figure 5 This invention relates to the integral structure of the U-shaped guide rail column; Figure 6 This is a schematic diagram of the overall structure of the sliding frame of the present invention; Figure 7 This is a schematic diagram of the installation structure of the sliding frame and the boring and milling spindle box of the present invention; Figure 8 This is a schematic diagram of the overall structure of the spindle box of the present invention; Figure 9 This is a schematic diagram of the back structure of the spindle box of the present invention; Figure 10 This is a schematic diagram of the boring bar telescopic structure of the present invention; Figure 11 This is an exploded view of the sliding frame of the present invention; Figure 12 This is a schematic diagram of the overall structure of the adjustable slider of the present invention; Figure 13 This is a schematic diagram of the overall structure of the rear adjustment seat of the present invention; Figure 14 This is a schematic diagram of the overall structure of the front adjustment seat of the present invention; Figure 15 This is a schematic diagram of the eccentric shaft mounting structure of the present invention.

[0021] The labels in the diagram represent: 1. Base; 11. Telescopic component; 12. Machining table; 121. Drive component; 2. U-shaped guide rail column; 21. Operating room; 22. Vertical guide rail; 23. Mounting table; 3. Boring and milling spindle box; 31. Parallel guide rail; 32. First drive rod; 33. Boring spindle; 34. Second drive rod; 4. Balancing mechanism; 41. Liquid nitrogen storage component; 42. Hydraulic telescopic rod; 43. Fixed pulley; 44. Movable pulley; 45. Rope; 5. Lifting component; 51. Lifting motor; 52. Ball screw; 53. Sleeve; 6. Sliding frame; 61. Adjustable slider; 6101. U-shaped groove; 6102. Sliding connection groove; 62. Front adjusting seat; 621. Front eccentric shaft; 63. Rear adjusting seat; 64. Adjusting frame; 65. U-shaped seat; 651. Sliding seat; 66. Screw; 67. Adjusting motor; 68. Rear eccentric shaft. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0023] The present invention will be further described below with reference to embodiments.

[0024] Example: A multi-station floor-standing horizontal boring and milling automated line, such as... Figure 1 - Figure 4 As shown, the system includes a base 1, with a U-shaped guide rail column 2 slidably mounted inside the base 1. The base 1 also contains a telescopic component 11 for guiding the sliding of the U-shaped guide rail column 2. Both the telescopic component 11 and the bottom of the U-shaped guide rail column 2 utilize common column sliding drive methods found in the prior art, which will not be elaborated upon here. A boring and milling spindle box 3 is slidably mounted vertically on the side of the U-shaped guide rail column 2. The system also includes: The sliding frame 6, with an L-shaped projection in the side view, is slidably mounted on one side of the U-shaped guide rail column 2 and is used to drive the boring and milling spindle box 3 to move up and down. The sliding frame 6 includes an adjustable slider 61, and a U-shaped groove 6101 is provided on one side of the adjustable slider 61. The U-shaped groove 6101 is semi-enclosed and locked on one side of the U-shaped guide rail column 2. The boring and milling spindle box 3 is fixedly mounted on the side of the U-shaped guide rail column 2 away from the adjustable slider 61. A balancing mechanism 4 is used to pull one side of the sliding frame 6 to adjust the force balance on both sides of the sliding frame 6. The balancing mechanism 4 includes a fixed pulley 43 fixedly installed on the U-shaped guide rail column 2 and a movable pulley 44 that moves vertically along the side of the U-shaped guide rail column 2. A rope 45 is wound around the outside of the fixed pulley 43 and the movable pulley 44. One end of the rope 45 is connected to the top of the sliding frame 6. A hydraulic telescopic rod 42 is provided on the side of the U-shaped guide rail column 2 to drive the movable pulley 44 to move up and down. A mounting platform 23 is provided on the top of the U-shaped guide rail column 2, and the fixed pulley is rotatably mounted on the mounting platform 23.

[0025] In this invention, by setting a balancing mechanism 4 above the U-shaped guide rail column 2, when the sliding frame 6 drives the boring and milling spindle box 3 to move up and down, the rope 45 of the balancing mechanism 4 can pull on one side of the sliding frame 6. Then, the hydraulic telescopic rod 42 can drive the movable pulley 44 to move up or down. When the sliding frame 6 drives the boring and milling spindle box 3 to move upward, the hydraulic telescopic rod 42 retracts, causing the movable pulley 44 to move downward, so that the rope 45 generates an upward pulling force on the sliding frame 6, assisting the sliding frame 6 to move upward, making the force on both sides of the sliding frame 6 more even, and making the tilt of the sliding frame 6 caused by the change of the center of gravity of the boring and milling spindle box 3 on the sliding frame 6 smaller, making it easier to control the machining accuracy of the boring and milling spindle box 3.

[0026] In addition, an operating room 21 is provided on the side of the sliding frame 6 away from the U-shaped guide rail column 2. The operating room 21 moves up and down synchronously with the sliding frame 6 and the boring and milling spindle box 3.

[0027] Furthermore, such as Figure 5 and Figure 6 As shown, vertical guide rails 22 are fixedly installed on both sides of the U-shaped guide rail column 2 that are far apart from each other, and sliders are fixedly installed on the inner walls of both sides of the U-shaped groove 6101 that face each other, wherein the slider on one side of the inner wall of the U-shaped groove 6101 is slidably installed.

[0028] In this design, by sliding the slider on one side of the inner wall of the U-shaped groove 6101, the position of the slider can be adjusted according to the distance to the U-shaped guide rail column 2 during the installation process, so that the sliders on both sides of the inner wall of the U-shaped groove 6101 can fit more closely to both sides of the U-shaped guide rail column 2.

[0029] Furthermore, such as Figure 6 and Figure 7 As shown, the U-shaped guide rail column 2 is equipped with a lifting component 5 for driving the sliding frame 6 to move up and down. The lifting component 5 includes a ball screw 52 rotatably mounted on the U-shaped guide rail column 2. One end of the ball screw 52 is driven by a lifting motor 51. The sliding frame 6 includes an adjustable slider 61. A sleeve 53 is fixedly mounted on the adjustable slider 61. One end of the ball screw 52 passes through the sleeve 53. The lifting motor 51 drives the ball screw 52 to rotate, thereby driving the adjustable slider 61 to move up and down. The adjustable slider 61 is integrally formed with a sliding connecting groove 6102 for the ball screw 52 to pass through. The sleeve 53 is located below the sliding connecting groove 6102.

[0030] In this invention, a sleeve 53 and a sliding connecting groove 6102 are respectively provided on the adjustable slider 61. During use, the ball screw 52 passes through the sliding connecting groove 6102 and is connected to the sleeve 53 for transmission. When it is necessary to drive the adjustable slider 61 to move up and down, the ball screw 52 is driven to rotate by the lifting motor 51, so that the up and down position of the adjustable slider 61 can be adjusted.

[0031] Furthermore, such as Figure 8 and Figure 9 As shown, a parallel guide rail 31 for sliding connection with an adjustable slider 61 is fixedly provided on the side of the boring and milling spindle box 3. A first drive rod 32 is rotatably mounted on the adjustable slider 61. The first drive rod 32 is located directly below the boring and milling spindle box 3. The first drive rod 32 is used to drive the boring and milling spindle box 3 to slide along the parallel guide rail 31. A motor for driving the first drive rod 32 to rotate is fixedly mounted on the adjustable slider 61.

[0032] Specifically, by rotating and mounting the first drive rod 32 on the adjustable slider 61, when it is necessary to adjust the front and rear position of the boring and milling spindle box 3, the first drive rod 32 can be rotated by the motor, which can drive the boring and milling spindle box 3 to move in the length direction.

[0033] Furthermore, such as Figure 10 As shown, a boring spindle 33 is slidably installed inside the boring and milling spindle box 3, and a second drive rod 34 is rotatably installed inside the boring and milling spindle box 3 below the boring spindle 33. The second drive rod 34 is used to drive the boring spindle 33 to move in the boring and milling spindle box 3 along the direction of the parallel guide rail 31.

[0034] By rotating and installing the second drive rod 34 inside the boring and milling spindle box 3, the boring spindle 33 can be easily driven to move along the length direction inside the boring and milling spindle box 3. The combined use of the first drive rod 32 and the second drive rod 34 can give the boring spindle 33 a wider machining range and adapt to more complex machining needs.

[0035] It should be noted that both the first drive rod 32 and the second drive rod 34 are ball screws. Ball nuts for cooperating with the first drive rod 32 and the second drive rod 3 are fixedly installed below the boring and milling spindle box 3 and inside the boring and milling spindle box 3, respectively. The first drive rod 32 and the second drive rod 34 drive the ball nuts to move, thereby driving the corresponding components to move.

[0036] It should be noted that a rotary motor for driving the boring spindle 33 to rotate is installed inside the boring and milling spindle box 3. The way the rotary motor drives the boring spindle 33 and the installation method of the rotary motor are the same as the existing installation methods inside the boring and milling spindle box 3, and will not be described again here.

[0037] Furthermore, such as Figure 11 and Figure 12 As shown, the adjustable slider 61 is provided with a front adjustment seat 62 and a rear adjustment seat 63 respectively. An adjustment frame 64 is fixedly installed above the front adjustment seat 62 and the rear adjustment seat 63. The boring and milling spindle box 3 and the first drive rod 32 are both fixedly installed on the adjustment frame 64. The adjustment frame 64 is used to adjust the front and rear tilt angle of the boring and milling spindle box 3.

[0038] In this design, a front adjustment seat 62 and a rear adjustment seat 63 are respectively provided on the adjustable slider 61. During use, when the boring spindle 33 is extended, the position of the cutting head of the boring spindle 33 will tilt downward under the action of gravity. By providing the front adjustment seat 62 and the rear adjustment seat 63 respectively, the height of the front and rear ends of the adjustment frame 64 can be adjusted, and the position of the cutting head of the boring spindle 33 can be adjusted back to the original position, enabling more precise boring and milling machining.

[0039] Furthermore, such as Figure 13 and Figure 14 As shown, the rear adjustment seat 63 includes a U-shaped seat 65 fixedly mounted on an adjustable slider 61. A sliding seat 651 is slidably mounted inside the U-shaped seat 65, and the sliding seat 651 is supported on the bottom of the adjustment frame 64. A rear eccentric shaft 68 is provided on the side of the U-shaped seat 65, passing through the sliding seat 651. An adjustment motor 67 is fixedly mounted on the adjustable slider 61. The adjustment motor 67 drives the rear eccentric shaft 68 to rotate through a screw 66. The rear eccentric shaft 68 adjusts the vertical position of the rear end of the adjustment frame 64 by rotating. The structure of the front adjustment seat 62 is the same as that of the rear adjustment seat 63. The front adjustment seat 62 includes a front eccentric shaft 621. The front adjustment seat 62 adjusts the vertical position of the front end of the adjustment frame 64 by rotating the front eccentric shaft 621.

[0040] In this design, sliding seats 651 are installed inside the U-shaped seat 65, and a rear eccentric shaft 68 is provided inside the U-shaped seat 65 to adjust the vertical position of the sliding seats 651. When it is necessary to adjust the vertical position of the rear end of the adjusting frame 64, the rear eccentric shaft 68 can be rotated to change the support surface between the rear eccentric shaft 68 and the sliding seat 651, thereby adjusting the vertical position of the rear end of the adjusting frame 64. In addition, the vertical position of the front end of the adjusting frame 64 is adjusted in the same way as that of the rear end, by rotating the front eccentric shaft 621.

[0041] It should be noted that the contact positions of the rear eccentric shaft 68 and the U-shaped seat 65 are connected by bearings, and the middle part of the rear eccentric shaft 68 (the part that contacts the sliding seat 651) is eccentrically set.

[0042] Furthermore, such as Figure 3 and Figure 4 As shown, it also includes a liquid nitrogen storage component 41, which includes a liquid nitrogen storage tank. The telescopic cylinder of the hydraulic telescopic rod 42 is connected to the inside of the liquid nitrogen storage tank through a pipe. The liquid nitrogen storage tank is used to maintain the stable temperature of the medium inside the telescopic cylinder.

[0043] The liquid nitrogen storage tank can be used to cool the medium inside the telescopic cylinder, keeping the temperature of the medium inside the telescopic cylinder stable and allowing the hydraulic telescopic rod 42 to control the movable pulley more precisely.

[0044] Furthermore, such as Figure 2 As shown, a processing table 12 is provided on one side of the telescopic component 11 along its length. The processing table 12 is used to place the workpiece to be processed. A driving component 121 is provided at the bottom of the processing table 12 to move the processing table 12 closer to or away from the U-shaped guide rail column 2, which can adjust the position of the workpiece to be processed.

[0045] The specific steps for using a multi-station floor-type horizontal boring and milling automated line include the following: Step 1: First, place the workpiece to be processed on one side of the base 1, and make the surface to be processed of the workpiece face the boring and milling spindle box 3. Then fix the workpiece to be processed. Step 2: Then, the linear drive U-shaped guide column 2 is moved so that the workpiece and the boring and milling spindle box 3 on one side of the U-shaped guide column 2 are on the same straight line, and the tool on the boring and milling spindle box 3 is changed at the same time. Step 3: Then, move the sliding frame 6 up and down on the side of the U-shaped guide column 2 so that the tool on the boring and milling spindle box 3 on the sliding frame 6 and the workpiece to be processed reach the same specified height. Step 4: Finally, drive the boring and milling spindle box 3 to move toward the workpiece to be processed, so that the cutting tool on the boring and milling spindle box 3 comes into contact with the workpiece to be processed.

[0046] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multi-station floor-mounted horizontal boring and milling automatic line, comprising a base (1), a U-shaped guide rail column (2) slidably mounted inside the base (1), a telescopic component (11) for guiding the sliding of the U-shaped guide rail column (2) being provided inside the base (1), and a boring and milling spindle box (3) slidably mounted up and down on the side of the U-shaped guide rail column (2), characterized in that, Also includes: The sliding frame (6) has an L-shaped projection outline in the side view and is slidably installed on one side of the U-shaped guide rail column (2) to drive the boring and milling spindle box (3) to move up and down. The sliding frame (6) includes an adjustable slider (61). A U-shaped groove (6101) is provided on one side of the adjustable slider (61). The U-shaped groove (6101) is semi-enclosed and locked on one side of the U-shaped guide rail column (2). The boring and milling spindle box (3) is fixedly installed on the side of the U-shaped guide rail column (2) away from the adjustable slider (61). The balancing mechanism (4) is used to pull one side of the sliding frame (6) to adjust the force balance on both sides of the sliding frame (6). The balancing mechanism (4) includes a fixed pulley (43) fixedly installed on the U-shaped guide rail column (2) and a movable pulley (44) that moves vertically along the side of the U-shaped guide rail column (2). The fixed pulley (43) and the movable pulley (44) are wrapped with ropes (45). One end of the ropes (45) is connected to the top of the sliding frame (6). The side of the U-shaped guide rail column (2) is provided with a hydraulic telescopic rod (42) for driving the movable pulley (44) to move up and down.

2. The multi-station floor-type horizontal boring and milling automatic line according to claim 1, characterized in that, Vertical guide rails (22) are fixedly installed on both sides of the U-shaped guide rail column (2) that are far apart from each other. Slider blocks are fixedly installed on the inner walls of both sides of the U-shaped groove (6101) that face each other. The slider on one side of the inner wall of the U-shaped groove (6101) is slidably installed.

3. The multi-station floor-type horizontal boring and milling automatic line according to claim 1, characterized in that, The U-shaped guide column (2) is provided with a lifting component (5) for driving the sliding frame (6) to move up and down. The lifting component (5) includes a ball screw (52) rotatably mounted on the U-shaped guide column (2). One end of the ball screw (52) is driven by a lifting motor (51). The sliding frame (6) includes an adjustable slider (61). A sleeve (53) is fixedly installed on the adjustable slider (61). One end of the ball screw (52) passes through the sleeve (53). The lifting motor (51) drives the ball screw (52) to rotate and drive the adjustable slider (61) to move up and down. A sliding connecting groove (6102) is integrally formed on the adjustable slider (61). The sliding connecting groove (6102) is used for the ball screw (52) to pass through. The sleeve (53) is located below the sliding connecting groove (6102).

4. The multi-station floor-type horizontal boring and milling automatic line according to claim 1, characterized in that, The side of the boring and milling spindle box (3) is fixedly provided with a parallel guide rail (31) for sliding connection with the adjustable slider (61). A first drive rod (32) is rotatably mounted on the adjustable slider (61). The first drive rod (32) is located directly below the boring and milling spindle box (3). The first drive rod (32) is used to drive the boring and milling spindle box (3) to slide along the parallel guide rail (31). A motor for driving the first drive rod (32) to rotate is fixedly mounted on the adjustable slider (61).

5. The multi-station floor-type horizontal boring and milling automatic line according to claim 4, characterized in that, A boring spindle (33) is slidably installed inside the boring and milling spindle box (3). A second drive rod (34) is rotatably installed inside the boring and milling spindle box (3) below the boring spindle (33). The second drive rod (34) is used to drive the boring spindle (33) to move in the direction of the parallel guide rail (31) in the boring and milling spindle box (3).

6. The multi-station floor-type horizontal boring and milling automatic line according to claim 5, characterized in that, The adjustable slider (61) is provided with a front adjustment seat (62) and a rear adjustment seat (63) respectively. An adjustment frame (64) is fixedly installed above the front adjustment seat (62) and the rear adjustment seat (63). The boring and milling spindle box (3) and the first drive rod (32) are both fixedly installed on the adjustment frame (64). The adjustment frame (64) is used to adjust the front and rear tilt angle of the boring and milling spindle box (3).

7. The multi-station floor-type horizontal boring and milling automatic line according to claim 6, characterized in that, The rear adjustment seat (63) includes a U-shaped seat (65) fixedly installed on an adjustable slider (61). A sliding seat (651) is slidably installed inside the U-shaped seat (65). The sliding seat (651) is supported on the bottom of the adjustment frame (64). A rear eccentric shaft (68) passing through the sliding seat (651) is provided on the side of the U-shaped seat (65). An adjustment motor (67) is fixedly installed on the adjustable slider (61). The adjustment motor (67) drives the rear eccentric shaft (68) to rotate through a screw (66). The rear eccentric shaft (68) adjusts the vertical position of the rear end of the adjustment frame (64) by rotating.

8. The multi-station floor-type horizontal boring and milling automatic line according to claim 7, characterized in that, The structure of the front adjustment seat (62) is the same as that of the rear adjustment seat (63). The front adjustment seat (62) includes a front eccentric shaft (621). The front adjustment seat (62) adjusts the up and down position of the front end of the adjustment frame (64) by rotating the front eccentric shaft (621).

9. A multi-station floor-type horizontal boring and milling automatic line according to claim 1, characterized in that, It also includes a liquid nitrogen storage component (41), which includes a liquid nitrogen storage tank. The inside of the telescopic cylinder of the hydraulic telescopic rod (42) is connected to the inside of the liquid nitrogen storage tank through a pipe. The liquid nitrogen storage tank is used to maintain the temperature of the medium inside the telescopic cylinder.

10. The method of using a multi-station floor-type horizontal boring and milling automatic line according to claim 1, characterized in that, Specifically, the steps include the following: Step 1: First, place the workpiece to be processed on one side of the base (1) and make the surface to be processed of the workpiece face the boring and milling spindle box (3). Then fix the workpiece to be processed. Step 2: After that, the linear drive U-shaped guide column (2) is moved so that the workpiece and the boring and milling spindle box (3) on one side of the U-shaped guide column (2) are on the same straight line, and the tool on the boring and milling spindle box (3) is replaced at the same time. Step 3: Then, move the sliding frame (6) up and down on the side of the U-shaped guide column (2) so that the tool on the boring and milling spindle box (3) on the sliding frame (6) and the workpiece to be processed reach the same specified height. Step 4: Finally, drive the boring and milling spindle box (3) to move toward the workpiece to be processed, so that the tool on the boring and milling spindle box (3) comes into contact with the workpiece to be processed.

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