Four-axis machining center special for cylinder barrel flange machining

Abstract

The utility model discloses a special four-axis machining center for cylinder barrel flange machining, which comprises a machine tool body and a portal frame, the portal frame is mounted at the top end of the machine tool body, a spindle frame is mounted on the outer wall of the portal frame, and a machine tool spindle is mounted on the outer wall of the spindle frame. A workbench is arranged at the top end of the machine tool body on one side of the portal frame, a positioning frame is installed at the top end of the workbench, a walking frame is installed on the side, away from the positioning frame, of the top end of the workbench, and a rotating sleeve is installed on the side wall of the positioning frame. According to the cylinder barrel flange clamping and fixing device, a four-axis machining center can clamp and fix a cylinder barrel flange in an adjustable inner tensioning mode, the cylinder barrel flanges with different inner diameters can be fixed conveniently, machining of multiple faces through one-time clamping is facilitated, the working intensity of workers is reduced, it is guaranteed that the quality of the cylinder barrel flange is stable and reliable, and the machining efficiency is improved. And the machining efficiency of the four-axis machining center on the cylinder barrel flange is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of four-axis machining centers, in particular to a four-axis machining center special for machining cylinder flanges. Background Art

[0002] The cylinder barrel and guide sleeve of the hydraulic cylinder are generally connected by flanges through bolts. Cylinders with this connection method are widely used in large and medium-sized wheel loaders. The flange and cylinder barrel are generally connected into one by welding. Its characteristic is that the matching surface between the cylinder barrel and the flange runs through the entire flange, that is, the flange is completely put on the cylinder barrel, and then welding is performed on the end face where the flange and the guide sleeve are connected. This end face is the post-weld processing surface. After the cylinder barrel flange is welded, a special machine tool is required for processing.

[0003] The existing processing technology uses a three-axis CNC machining center to process cylinder flange products. This type of product is heavy and in high demand. It is a conventional large-scale product. The main processing surface has two perpendicular surfaces, and the surfaces are milled, drilled, and tapped. According to the current process, two toolings and two clampings are required to complete it. The labor intensity of employees is high and the production efficiency is low. When in use, it is generally not conducive to the adjustable internal tension clamping and fixing of the cylinder flange, and it is not convenient to fix cylinder flanges with different inner diameters. It is not convenient to clamp multiple surfaces at one time, which affects the work intensity of employees and affects the processing quality stability and processing efficiency of the cylinder flange. Utility Model Content

[0004] The purpose of the utility model is to provide a four-axis machining center dedicated to cylinder flange processing, so as to solve the problems proposed in the above background technology that the four-axis machining center is not convenient for adjustable internal tension clamping and fixing of the cylinder flange, is not convenient for fixing cylinder flanges with different inner diameters, is not convenient for clamping multiple surfaces at one time, affects the work intensity of employees, and affects the processing quality stability and processing efficiency of the cylinder flange.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a four-axis machining center specially used for cylinder flange processing, comprising a machine tool body and a gantry, a gantry is installed at the top of the machine tool body, a spindle frame is installed on the outer wall of the gantry, a machine tool spindle is installed on the outer wall of the spindle frame, a workbench is arranged on the top of the machine tool body on one side of the gantry, a positioning frame is installed on the top of the workbench, a traveling frame is installed on the side of the top of the workbench away from the positioning frame, a rotating sleeve is installed on the side wall of the positioning frame, a rotating shaft is movably arranged at the center position inside the rotating sleeve, a clamping frame is installed on the end of the rotating shaft away from the rotating sleeve, a hydraulic cylinder is installed on the top of the workbench below the traveling frame, and the output end of the hydraulic cylinder is connected to the traveling frame, a rotating frame is movably installed on the side wall of the traveling frame, and a right-angle motor is installed on the outer wall of the traveling frame on one side of the rotating frame.

[0006] Preferably, a power shaft is installed at the output end of the right-angle motor, and the power shaft is connected to the rotating frame, and an adjustment frame is installed at one end of the rotating frame away from the power shaft.

[0007] Preferably, a bidirectional threaded rod is provided inside the adjusting frame, a servo motor is installed inside the adjusting frame on one side of the bidirectional threaded rod, and an output end of the servo motor is connected to the bidirectional threaded rod.

[0008] Preferably, two sets of threaded sleeves are mounted on the surface of the bidirectional threaded rod, three sets of arc blocks with equal spacing are arranged outside the adjustment frame on one side of the bidirectional threaded rod, and three sets of linkage arms with equal spacing are installed on the outer wall of the threaded sleeve.

[0009] Preferably, a front shaft is installed at one end of the linkage arm close to the threaded sleeve, and the linkage arm is connected to the threaded sleeve through the front shaft.

[0010] Preferably, a rear axle is installed at one end of the linkage arm close to the arc block, and the linkage arm is movably connected to the arc block through the rear axle.

[0011] Preferably, an inner jet pump is installed on the outer wall of the spindle frame above the machine tool spindle, a nozzle is installed on the outer wall of the machine tool spindle, an air pipe is arranged on the outer wall of the inner jet pump, and the air pipe extends to the outside of the nozzle.

[0012] Preferably, a control panel is installed on the outer wall of the gantry, and the output end of the control panel is electrically connected to the input ends of the hydraulic cylinder, the internal jet pump, the right-angle motor and the servo motor.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the four-axis machining center not only realizes the adjustable internal tension clamping and fixing of the cylinder flange by the four-axis machining center, which is convenient for fixing the cylinder flanges with different inner diameters, but also facilitates the processing of multiple surfaces by one clamping, reduces the work intensity of employees, ensures the stable and reliable quality of the cylinder flange, and improves the processing efficiency of the four-axis machining center for the cylinder flange;

[0014] (1) The bidirectional threaded rod is driven to rotate by a servo motor, and the bidirectional threaded rod drives two sets of threaded sleeves to move toward each other. The threaded sleeve drives the linkage arm to move through the front shaft, and the linkage arm drives the arc block to move through the rear shaft. The three sets of arc blocks move outward synchronously to perform internal tension clamping and fixing of the cylinder flange, so as to facilitate the external milling, drilling and tapping of the cylinder flange. Since the three sets of arc blocks are movable structures, it is convenient to clamp and fix cylinder flanges with different inner diameters, and realize the adjustable internal tension clamping and fixing of the cylinder flange by the four-axis machining center, which is convenient for fixing cylinder flanges with different inner diameters, and increases the clamping range and convenience of the cylinder flange;

[0015] (2) The traveling frame is driven by a hydraulic cylinder to move, and the traveling frame drives the cylinder flange to move through an arc block. The cylinder flange contacts the clamping frame, and the power shaft is driven by a right-angle motor to rotate. The rotating frame is driven by the power shaft to rotate, and the adjusting frame is driven by the rotating frame to rotate. The adjusting frame drives the cylinder flange to rotate through an arc block, and the rotating shaft rotates inside the rotating sleeve to facilitate the rotation of the cylinder flange for processing other surfaces. The four-axis machining center realizes convenient rotation drive of the cylinder flange, facilitates the processing of multiple surfaces in one clamping, reduces the work intensity of employees, ensures the stable and reliable quality of the cylinder flange, and improves the processing efficiency of the four-axis machining center for the cylinder flange. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 It is a front view cross-sectional structural schematic diagram of the utility model;

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the workbench of the utility model;

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the gantry of the utility model;

[0020] Figure 5 This is a schematic diagram of the enlarged front view of the arc block of the utility model;

[0021] Figure 6 It is a three-dimensional enlarged structural schematic diagram of the rotating frame of the utility model;

[0022] Figure 7 It is a rear-view cross-sectional enlarged structural schematic diagram of the bidirectional threaded rod of the utility model;

[0023] Figure 8 It is a schematic diagram of the three-dimensional enlarged structure of the trachea of ​​the utility model.

[0024] In the figure: 1. machine tool body; 2. workbench; 3. gantry; 4. internal jet pump; 5. spindle frame; 6. air pipe; 7. machine tool spindle; 8. nozzle; 9. hydraulic cylinder; 10. walking frame; 11. positioning frame; 12. rotating axis; 13. rotating sleeve; 14. clamping frame; 15. right-angle motor; 16. power shaft; 17. rotating frame; 18. servo motor; 19. threaded sleeve; 20. front axis; 21. arc block; 22. rear axis; 23. linkage arm; 24. two-way threaded rod; 25. adjustment frame; 26. control panel. DETAILED DESCRIPTION

[0025] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0026] See also Figure 1-8 The utility model provides an embodiment: a four-axis machining center for cylinder flange machining, comprising a machine tool body 1 and a gantry 3, the gantry 3 is installed on the top of the machine tool body 1, a spindle frame 5 is installed on the outer wall of the gantry 3, a machine tool spindle 7 is installed on the outer wall of the spindle frame 5, a workbench 2 is arranged on the top of the machine tool body 1 on one side of the gantry 3, a positioning frame 11 is installed on the top of the workbench 2, a walking frame 10 is installed on the side of the top of the workbench 2 away from the positioning frame 11, a rotating sleeve 13 is installed on the side wall of the positioning frame 11, and a rotating shaft 12 is movably arranged at the center position inside the rotating sleeve 13;

[0027] A clamping frame 14 is installed at one end of the rotating shaft 12 away from the rotating sleeve 13, a hydraulic cylinder 9 is installed at the top of the workbench 2 below the traveling frame 10, the hydraulic cylinder 9 plays a role of power drive, and the output end of the hydraulic cylinder 9 is connected to the traveling frame 10, a rotating frame 17 is movably installed on the side wall of the traveling frame 10, and a right-angle motor 15 is installed on the outer wall of the traveling frame 10 on one side of the rotating frame 17, and the right-angle motor 15 plays a role of power drive;

[0028] The hydraulic cylinder 9 is turned on by operating the control panel 26, and the hydraulic cylinder 9 drives the traveling frame 10 to move. The traveling frame 10 drives the cylinder flange to move through the arc block 21, and the cylinder flange contacts the clamping frame 14. When the cylinder flange needs to be processed on other surfaces, the right-angle motor 15 is turned on by operating the control panel 26, and the power shaft 16 is driven by the right-angle motor 15 to rotate, and the rotating frame 17 is driven by the power shaft 16 to rotate, and the adjusting frame 25 is driven by the rotating frame 17 to rotate, and the adjusting frame 25 drives the cylinder flange to rotate through the arc block 21, and the rotating shaft 12 rotates inside the rotating sleeve 13, and the clamping frame 14 supports the rotating cylinder flange to facilitate the rotation of the cylinder flange for processing other surfaces, thereby realizing the convenient rotation drive of the cylinder flange by the four-axis machining center, facilitating the processing of multiple surfaces by clamping at one time, reducing the work intensity of employees, ensuring the stable and reliable quality of the cylinder flange, and improving the processing efficiency of the cylinder flange by the four-axis machining center;

[0029] A power shaft 16 is installed at the output end of the right-angle motor 15, and the power shaft 16 is connected to the rotating frame 17. An adjustment frame 25 is installed at one end of the rotating frame 17 away from the power shaft 16. A bidirectional threaded rod 24 is arranged inside the adjustment frame 25. A servo motor 18 is installed inside the adjustment frame 25 on one side of the bidirectional threaded rod 24. The servo motor 18 plays a role of power drive, and the output end of the servo motor 18 is connected to the bidirectional threaded rod 24.

[0030] Two sets of threaded sleeves 19 are mounted on the surface of the bidirectional threaded rod 24. Three sets of arc blocks 21 with equal spacing are arranged outside the adjustment frame 25 on one side of the bidirectional threaded rod 24. Three sets of linkage arms 23 with equal spacing are installed on the outer wall of the threaded sleeve 19. The front shaft 20 is installed on one end of the linkage arm 23 close to the threaded sleeve 19, and the linkage arm 23 is connected to the threaded sleeve 19 through the front shaft 20.

[0031] The rear axle 22 is installed at one end of the linkage arm 23 close to the arc block 21, and the linkage arm 23 is movably connected to the arc block 21 through the rear axle 22;

[0032] By sleeve the cylinder flange on the surface of the three groups of arc blocks 21, the control panel 26 is operated to turn on the servo motor 18. Under the support of the adjustment frame 25, the servo motor 18 drives the bidirectional threaded rod 24 to rotate, and the bidirectional threaded rod 24 drives the two groups of threaded sleeves 19 to move toward each other. The threaded sleeve 19 drives the linkage arm 23 to move through the front shaft 20, and the linkage arm 23 drives the arc block 21 to move through the rear shaft 22. The three groups of arc blocks 21 move outward synchronously to perform internal tension clamping and fixing of the cylinder flange, so as to facilitate the external milling, drilling and tapping of the cylinder flange. Since the three groups of arc blocks 21 are movable structures, it is convenient to clamp and fix cylinder flanges with different inner diameters, and realize the adjustable internal tension clamping and fixing of the cylinder flange by the four-axis machining center, which is convenient for fixing cylinder flanges with different inner diameters, and increases the clamping range and convenience of the cylinder flange.

[0033] An inner jet pump 4 is installed on the outer wall of the spindle frame 5 above the machine tool spindle 7, a nozzle 8 is installed on the outer wall of the machine tool spindle 7, an air pipe 6 is arranged on the outer wall of the inner jet pump 4, and the air pipe 6 extends to the outside of the nozzle 8, a control panel 26 is installed on the outer wall of the gantry 3, and the output end of the control panel 26 is electrically connected to the input end of the hydraulic cylinder 9, the inner jet pump 4, the right angle motor 15, and the servo motor 18;

[0034] The drill bit is driven by the machine tool spindle 7 to perform drilling operations, and the internal jet pump 4 delivers high-pressure gas into the interior of the air pipe 6, which blows out the waste chips after drilling through the nozzle 8 to prevent the problem of iron chips stuck in the tapping and rotten teeth caused by the failure to blow away the iron chips in the hole during drilling.

[0035] When the embodiment of the present application is in use: an external power supply is first used to drive the bidirectional threaded rod 24 to rotate through the servo motor 18, and the bidirectional threaded rod 24 drives the two groups of threaded sleeves 19 to move toward each other. The threaded sleeve 19 drives the linkage arm 23 to move through the front axle 20, and the linkage arm 23 drives the arc block 21 to move through the rear axle 22. The three groups of arc blocks 21 move outward synchronously to clamp and fix the cylinder flange in an internal tensioning manner to facilitate external milling, drilling and tapping of the cylinder flange. Since the three groups of arc blocks 21 are movable structures, it is convenient to clamp and fix cylinder flanges with different inner diameters. The hydraulic cylinder 9 drives the walking frame 10 to move, and the walking frame 10 drives the cylinder flange to move through the arc block 21. The cylinder flange contacts the clamping frame 14. When the cylinder method When the flange needs to be processed on other surfaces, the right-angle motor 15 drives the power shaft 16 to rotate, the power shaft 16 drives the rotating frame 17 to rotate, the rotating frame 17 drives the adjusting frame 25 to rotate, the adjusting frame 25 drives the cylinder flange to rotate through the arc block 21, the rotating shaft 12 rotates inside the rotating sleeve 13, the clamping frame 14 supports the rotating cylinder flange to facilitate the rotation of the cylinder flange to process other surfaces, the drill bit is driven by the machine tool spindle 7 to perform drilling operations, the internal jet pump 4 sends high-pressure gas into the interior of the air pipe 6, and the air pipe 6 blows out the waste chips after drilling through the nozzle 8 to prevent the iron chips in the hole from being blown out cleanly during drilling, resulting in the problem of iron chips stuck in the tapping and rotten teeth during tapping, so as to complete the use of the four-axis machining center.

[0036] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A four-axis machining center for cylinder flange machining, characterized in that: The machine tool comprises a machine body (1) and a gantry (3), wherein the gantry (3) is installed at the top of the machine tool body (1), a spindle frame (5) is installed on the outer wall of the gantry (3), a machine tool spindle (7) is installed on the outer wall of the spindle frame (5), a workbench (2) is arranged at the top of the machine tool body (1) on one side of the gantry (3), a positioning frame (11) is installed at the top of the workbench (2), a walking frame (10) is installed on the side of the top of the workbench (2) away from the positioning frame (11), and a side wall of the positioning frame (11) is installed A rotating sleeve (13) is provided, a rotating shaft (12) is movably arranged at the center position inside the rotating sleeve (13), a clamping frame (14) is installed at one end of the rotating shaft (12) away from the rotating sleeve (13), a hydraulic cylinder (9) is installed at the top of the workbench (2) below the traveling frame (10), and the output end of the hydraulic cylinder (9) is connected to the traveling frame (10), a rotating frame (17) is movably installed on the side wall of the traveling frame (10), and a right-angle motor (15) is installed on the outer wall of the traveling frame (10) on one side of the rotating frame (17).

2. A four-axis machining center for cylinder flange machining according to claim 1, characterized in that: A power shaft (16) is installed at the output end of the right-angle motor (15), and the power shaft (16) is connected to a rotating frame (17). An adjustment frame (25) is installed at one end of the rotating frame (17) away from the power shaft (16).

3. A four-axis machining center for cylinder flange machining according to claim 2, characterized in that: A bidirectional threaded rod (24) is arranged inside the adjusting frame (25), a servo motor (18) is installed inside the adjusting frame (25) on one side of the bidirectional threaded rod (24), and an output end of the servo motor (18) is connected to the bidirectional threaded rod (24).

4. A four-axis machining center for cylinder flange machining according to claim 3, characterized in that: The surface of the bidirectional threaded rod (24) is sleeved with two groups of threaded sleeves (19); the outside of the adjustment frame (25) on one side of the bidirectional threaded rod (24) is provided with three groups of arc blocks (21) at equal intervals; and the outer wall of the threaded sleeve (19) is provided with three groups of linkage arms (23) at equal intervals.

5. The four-axis machining center for cylinder flange machining according to claim 4, characterized in that: The front shaft (20) is installed at one end of the linkage arm (23) close to the threaded sleeve (19), and the linkage arm (23) is connected to the threaded sleeve (19) through the front shaft (20).

6. The four-axis machining center for cylinder flange machining according to claim 4, characterized in that: The end of the linkage arm (23) close to the arc block (21) is installed with a rear axle (22), and the linkage arm (23) is movably connected to the arc block (21) through the rear axle (22).

7. The four-axis machining center for cylinder flange machining according to claim 1, characterized in that: An inner jet pump (4) is installed on the outer wall of the spindle frame (5) above the machine tool spindle (7), a nozzle (8) is installed on the outer wall of the machine tool spindle (7), an air pipe (6) is arranged on the outer wall of the inner jet pump (4), and the air pipe (6) extends to the outside of the nozzle (8).

8. The four-axis machining center for cylinder flange machining according to claim 1, characterized in that: A control panel (26) is installed on the outer wall of the gantry (3), and the output end of the control panel (26) is electrically connected to the input ends of the hydraulic cylinder (9), the internal jet pump (4), the right-angle motor (15), and the servo motor (18).

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