A double station drilling and tapping center

Abstract

A double-station drilling and tapping center includes a first column 20, a second column 30, an X1-axis feeding assembly and an X2-axis feeding assembly fixed on a lower bed 10, a first chuck and a second chuck respectively arranged on the X1-axis feeding assembly and the X2-axis feeding assembly, the first chuck and the second chuck being used for clamping a workpiece, a Y1-axis feeding assembly and a Y2-axis feeding assembly respectively arranged on the first column 20 and the second column 30, a Z1-axis feeding assembly and a Z2-axis feeding assembly respectively arranged on the Y1-axis feeding assembly and the Y2-axis feeding assembly, and the Z1-axis feeding assembly and the Z2-axis feeding assembly being respectively connected with a drilling and tapping tool and a reverse chamfer tool. The drilling and tapping and the reverse chamfer synchronous machining are realized through a double-station independent structure, the tool changing link is omitted, and the machining cycle is shortened. Independent servo driving and hydraulic clamping systems are configured for the two stations, parallel clamping and machining are supported, the waiting time of process switching is eliminated, the comprehensive productivity is improved, and the double-station drilling and tapping center is suitable for batch efficient machining of disc parts.

Description

Technical Field

[0001] This utility model relates to the field of CNC machine tool technology, and in particular to a dual-station drilling and tapping center. Background Technology

[0002] As the core equipment for machining disc-shaped parts, the technological development of CNC drilling and tapping centers directly affects machining efficiency and accuracy. In existing technologies, drilling, tapping, and chamfering of disc-shaped parts typically require sequential completion or rely on single-station equipment with multiple tool changes to achieve multi-process machining, which has significant limitations. Traditional single-station equipment requires frequent tool changes when performing different processes, and each tool change is time-consuming, resulting in the machining cycle time being heavily occupied by non-cutting time, especially when machining small-diameter, multi-hole parts, where efficiency loss is more pronounced. Although there are attempts at dual-spindle equipment in existing technologies, due to complex mechanical structures and motion interference, practical applications are prone to defects such as reduced spindle positioning accuracy and insufficient system stability. On the other hand, the rigid design of the bed and column of traditional equipment is mostly based on general machining requirements, which is prone to slight vibrations under the high dynamic load conditions of dual-spindle operation, leading to increased coaxiality deviation in hole machining and restricting the machining quality of high-precision disc-shaped parts. Therefore, there is an urgent need to develop a dedicated CNC drilling and tapping center that combines high-efficiency multi-process machining capabilities, high-rigidity structure, and low time consumption to break through the existing technological bottlenecks. Utility Model Content

[0003] In order to overcome the above-mentioned technical defects, this utility model provides a dual-station drilling and tapping center to solve at least one technical problem existing in the background art.

[0004] This utility model provides the following technical solution: (Refer to...) Figure 1-4 As shown, a dual-station drilling and tapping center includes a first column 20, a second column 30, an X1-axis feed assembly, and an X2-axis feed assembly fixedly connected to the lower bed 10. The X1-axis feed assembly and the X2-axis feed assembly are respectively equipped with a first chuck and a second chuck for mounting workpieces. The first column 20 and the second column 30 are respectively equipped with a Y1-axis feed assembly and a Y2-axis feed assembly. The Y1-axis feed assembly and the Y2-axis feed assembly are respectively equipped with a Z1-axis feed assembly and a Z2-axis feed assembly. The Z1-axis feed assembly and the Z2-axis feed assembly are respectively connected to a drilling and tapping tool and a chamfering tool.

[0005] The X1 axis feed assembly includes an X1 axis guide rail 32 and an X1 axis servo motor 31 mounted on the lower bed 10. The X1 axis servo motor 31 drives the first chuck 34 to slide on the X1 axis guide rail 32 via the X1 axis lead screw 33.

[0006] The X2 axis feed assembly includes an X2 axis guide rail 42 and an X2 axis servo motor 41 mounted on the lower bed 10. The X2 axis servo motor 41 drives the second chuck 44 to slide on the X2 axis guide rail 42 via the X2 axis lead screw 43.

[0007] The Y1 axis feed assembly includes a Y1 axis guide rail 52 and a Y1 axis servo motor 51 mounted on the first column 20. The Y1 axis servo motor 51 drives the Y1 axis slide plate 54 to slide on the Y1 axis guide rail 52 via the Y1 axis lead screw 53.

[0008] The Y2 axis feed assembly includes a Y2 axis guide rail 62 and a Y2 axis servo motor 61 mounted on the second column 30. The Y2 axis servo motor 61 drives the Y2 axis slide plate 64 to slide on the Y2 axis guide rail 62 via the Y2 axis lead screw 63.

[0009] The Z1 axis feed assembly includes a Z1 axis servo motor and a Z1 axis guide rail 72 mounted on the Y1 axis slide plate 54. The Z1 axis servo motor drives the Z1 axis slide plate 74 to slide on the Z1 axis guide rail 72 via the Z1 axis lead screw 73.

[0010] The Z2 axis feed assembly includes a Z2 axis servo motor 81 and a Z2 axis guide rail 82 mounted on the Y2 axis slide plate 64. The Z2 axis servo motor 81 drives the reverse chamfer slide 84 to slide on the Z2 axis guide rail 82 via the Z2 axis lead screw 83.

[0011] A first motor 75 is installed on the Z1 axis slide plate 74. The first motor 75 drives the drilling and tapping tool to rotate through the first spindle unit 76.

[0012] A second motor 85 is installed on the chamfering slide 84, and the second motor 85 drives the chamfering tool to rotate through the second spindle unit 86.

[0013] Furthermore, the first chuck 34 and / or the second chuck 44 are hydraulic chucks used to mount chuck-shaped workpieces.

[0014] Furthermore, the first chuck 34 and / or the second chuck 44 are pneumatic chucks used to mount chuck-shaped workpieces.

[0015] Furthermore, the first chuck 34 and / or the second chuck 44 obtain power from the fluid power source 90.

[0016] Furthermore, the fluid power source 90 includes a hydraulic station valve assembly and / or a pneumatic station valve assembly.

[0017] Furthermore, a processor unit is also provided, which controls the X1 axis servo motor 31, X2 axis servo motor 41, Y1 axis servo motor 51, Y2 axis servo motor 61, Z1 axis servo motor, Z2 axis servo motor 81, first motor 75, second motor 85 and fluid power source 90 to realize chuck displacement and workpiece processing.

[0018] Furthermore, a power supply is provided to power the dual-station drilling and tapping center, including powering the X1 axis servo motor 31, X2 axis servo motor 41, Y1 axis servo motor 51, Y2 axis servo motor 61, Z1 axis servo motor, Z2 axis servo motor 81, first motor 75, second motor 85 and fluid power source 90.

[0019] Furthermore, the processor unit includes a microcontroller, a PLC, or a machine tool CNC system.

[0020] Furthermore, the first spindle unit 76 is a BT50 spindle unit.

[0021] Furthermore, a tool-clamping cylinder 71 is also provided on the Z1 axis slide plate 74, which is used to clamp the drilling and tapping tools.

[0022] The technical effects and advantages of this utility model are as follows:

[0023] The dual-station drilling and tapping center provided by this utility model adopts a dual-station independent processing structure design, which allows drilling and tapping and chamfering processes to be performed simultaneously. Through the coordinated operation of the first chuck and the second chuck, drilling, tapping and chamfering can be completed on the same equipment, completely eliminating the tool changing process required by traditional single-station equipment, saving processing time per piece and significantly shortening the processing cycle.

[0024] By strengthening the structural rigidity of the bed and column, the combined vibration generated during dual-station synchronous machining is effectively suppressed, ensuring the consistency of machining accuracy in drilling, tapping and chamfering processes. It is especially suitable for continuous production under high speed and large cutting force conditions.

[0025] The two workstations are each equipped with an independent X / Y / Z axis servo drive system and hydraulic clamping device, enabling parallel operation of workpiece clamping, positioning, and machining. After a single workstation completes machining, it can directly switch to the next workpiece, avoiding the waiting time caused by process switching in traditional equipment and improving the overall productivity of the equipment. Attached Figure Description

[0026] Figure 1 This is a first isometric schematic diagram of the present invention.

[0027] Figure 2 This is a second isometric schematic diagram of the present invention.

[0028] Figure 3This is a cross-sectional view of the Z1 axis lead screw of this utility model.

[0029] Figure 4 This is a cross-sectional view of the Z2 axis lead screw of this utility model.

[0030] The components include: 10. Lower bed; 20. First column; 30. Second column; 31. X1 axis servo motor; 32. X1 axis guide rail; 33. X1 axis lead screw; 34. First chuck; 41. X2 axis servo motor; 42. X2 axis guide rail; 43. X2 axis lead screw; 44. Second chuck; 51. Y1 axis servo motor; 52. Y1 axis guide rail; 53. Y1 axis lead screw; 54. Y1 axis slide; 61. Y2 axis servo motor. Motor; 62, Y2 axis guide rail; 63, Y2 axis lead screw; 64, Y2 axis slide plate; 71, tool-changing cylinder; 72, Z1 axis guide rail; 73, Z1 axis lead screw; 74, Z1 axis slide plate; 75, first motor; 76, first spindle unit; 81, Z2 axis servo motor; 82, Z2 axis guide rail; 83, Z2 axis lead screw; 84, reverse chamfering slide table; 85, second motor; 86, second spindle unit; 90, fluid power source. Detailed Implementation

[0031] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. This utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0032] Reference Figure 1-4 As shown, this utility model provides a dual-station drilling and tapping center, including a first column 20, a second column 30, an X1-axis feed assembly, and an X2-axis feed assembly fixedly connected to the lower bed 10. A first chuck and a second chuck are respectively mounted on the X1-axis and X2-axis feed assemblies, which are used to mount chuck-type workpieces. A Y1-axis feed assembly and a Y2-axis feed assembly are respectively mounted on the first column 20 and the second column 30, and a Z1-axis feed assembly and a Z2-axis feed assembly are respectively mounted on the Y1-axis and Y2-axis feed assemblies. The Z1-axis and Z2-axis feed assemblies are respectively connected to a drilling and tapping tool and a chamfering tool.

[0033] The X1-axis feed assembly includes an X1-axis guide rail 32 mounted on the lower bed 10 and an X1-axis servo motor 31. The X1-axis servo motor 31 drives a first chuck 34 to slide on the X1-axis guide rail 32 via an X1-axis leadscrew 33. A nut that mates with the X1-axis leadscrew 33 is provided on the first chuck 34, forming a leadscrew-nut kinematic pair to achieve X1-axis feed motion. The first chuck 34 includes a pneumatic chuck and / or a hydraulic chuck. The first chuck 34 is used to hold a disc-shaped part to be drilled or tapped.

[0034] The lower part of the first chuck 34 is provided with an X1 axis slide plate, which forms a sliding motion pair with the X1 axis guide rail 32 to realize the sliding of the X1 axis slide plate on the X1 axis guide rail 32.

[0035] The X2-axis feed assembly includes an X2-axis guide rail 42 mounted on the lower bed 10 and an X2-axis servo motor 41. The X2-axis servo motor 41 drives a second chuck 44 to slide on the X2-axis guide rail 42 via an X2-axis leadscrew 43. A nut that mates with the X2-axis leadscrew 43 is provided on the second chuck 44, forming a leadscrew-nut kinematic pair to achieve X2-axis feed motion. The second chuck 44 includes a pneumatic chuck and / or a hydraulic chuck. The second chuck 44 is used to clamp disc-shaped parts to be chamfered.

[0036] The lower part of the second chuck 44 is provided with an X2 axis slide plate, which forms a sliding motion pair with the X2 axis guide rail 42 to realize the sliding of the X2 axis slide plate on the X2 axis guide rail 42.

[0037] The Y1-axis feed assembly includes a Y1-axis guide rail 52 and a Y1-axis servo motor 51 mounted on the first column 20. The Y1-axis servo motor 51 drives the Y1-axis slide plate 54 to slide on the Y1-axis guide rail 52 via a Y1-axis lead screw 53. A nut that mates with the Y1-axis lead screw 53 is provided on the Y1-axis slide plate 54, forming a lead screw-nut kinematic pair to realize the Y1-axis feed motion.

[0038] The Y2-axis feed assembly includes a Y2-axis guide rail 62 and a Y2-axis servo motor 61 mounted on the second column 30. The Y2-axis servo motor 61 drives the Y2-axis slide plate 64 to slide on the Y2-axis guide rail 62 via a Y2-axis lead screw 63. A nut that mates with the Y2-axis lead screw 63 is provided on the Y2-axis slide plate 64, forming a lead screw-nut kinematic pair to realize the Y2-axis feed motion.

[0039] The Z1-axis feed assembly includes a Z1-axis servo motor and a Z1-axis guide rail 72 mounted on the Y1-axis slide plate 54. The Z1-axis servo motor drives the Z1-axis slide plate 74 to slide on the Z1-axis guide rail 72 via a Z1-axis lead screw 73. A nut that mates with the Z1-axis lead screw 73 is provided on the Z1-axis slide plate 74, forming a lead screw-nut kinematic pair to realize the Z1-axis feed motion.

[0040] The Z1 axis slide plate 74 is equipped with a tool-clamping cylinder 71 and a first motor 75. The tool-clamping cylinder 71 is used to clamp the drilling and tapping tool, and the first motor 75 drives the drilling and tapping tool to rotate through the first spindle unit 76.

[0041] The first spindle unit 76 is a BT50 spindle unit. Drilling and tapping tools include drill bits or taps.

[0042] The Z2-axis feed assembly includes a Z2-axis servo motor 81 and a Z2-axis guide rail 82 mounted on a Y2-axis slide plate 64. The Z2-axis servo motor 81 drives a chamfered slide 84 to slide on the Z2-axis guide rail 82 via a Z2-axis lead screw 83. A nut that mates with the Z2-axis lead screw 83 is provided on the chamfered slide 84, forming a lead screw-nut kinematic pair to realize the Z2-axis feed motion.

[0043] A second motor 85 is installed on the chamfering slide 84, and the second motor 85 drives the chamfering tool to rotate through the second spindle unit 86.

[0044] The first chuck 34 and / or the second chuck 44 are powered by the hydrodynamic power source 90 to clamp the disc-shaped workpiece. The tool-clipping cylinder 71 is powered by the hydrodynamic power source 90 to clamp the drilling and tapping tools.

[0045] The fluid power source 90 includes a hydraulic station valve assembly and / or a pneumatic station valve assembly.

[0046] It is also equipped with a processor unit, which includes a microcontroller, PLC or CNC system for machine tools. The processor unit controls the X1 axis servo motor 31, X2 axis servo motor 41, Y1 axis servo motor 51, Y2 axis servo motor 61, Z1 axis servo motor, Z2 axis servo motor 81, first motor 75, second motor 85 and fluid power source 90.

[0047] It is also equipped with a power supply that supplies power to the dual-station drilling and tapping center, including power supply to X1 axis servo motor 31, X2 axis servo motor 41, Y1 axis servo motor 51, Y2 axis servo motor 61, Z1 axis servo motor, Z2 axis servo motor 81, first motor 75, second motor 85 and fluid power source 90.

[0048] Workflow:

[0049] After starting the dual-station drilling and tapping center, the disc-shaped workpiece to be drilled and tapped is clamped on the first chuck 34. The processor unit controls the X1 axis servo motor 31 and the Y1 axis servo motor 51 to move the disc-shaped workpiece clamped on the first chuck 34 to the position to be drilled and tapped, and controls the Z1 axis servo motor and the first motor 75 to process the disc-shaped workpiece through the drilling and tapping tool.

[0050] The disc-shaped workpiece to be chamfered is clamped on the second chuck 44. The processor unit controls the X2-axis servo motor 41 and the Y2-axis servo motor 61 to move the disc-shaped workpiece clamped on the second chuck 44 to the drilling and tapping position, and controls the Z2-axis servo motor 81 and the second motor 85 to process the disc-shaped workpiece with the chamfering tool. The dual-station drilling and tapping center can perform drilling, tapping and chamfering simultaneously.

[0051] It should be understood that, firstly, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change.

[0052] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0053] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dual-station drilling and tapping center, characterized in that: The machine includes a first column (20), a second column (30), an X1-axis feed assembly and an X2-axis feed assembly fixed to the lower bed (10). The X1-axis feed assembly and the X2-axis feed assembly are respectively equipped with a first chuck and a second chuck. The first chuck and the second chuck are used to clamp the workpiece. The first column (20) and the second column (30) are respectively equipped with a Y1-axis feed assembly and a Y2-axis feed assembly. The Y1-axis feed assembly and the Y2-axis feed assembly are respectively equipped with a Z1-axis feed assembly and a Z2-axis feed assembly. The Z1-axis feed assembly and the Z2-axis feed assembly are respectively connected to the drilling and tapping tool and the chamfering tool. The X1 axis feed assembly includes an X1 axis guide rail (32) and an X1 axis servo motor (31) mounted on the lower bed (10). The X1 axis servo motor (31) drives the first chuck (34) to slide on the X1 axis guide rail (32) via the X1 axis lead screw (33). The X2-axis feed assembly includes an X2-axis guide rail (42) and an X2-axis servo motor (41) mounted on the lower bed (10). The X2-axis servo motor (41) drives the second chuck (44) to slide on the X2-axis guide rail (42) via the X2-axis lead screw (43). The Y1 axis feed assembly includes a Y1 axis guide rail (52) and a Y1 axis servo motor (51) mounted on the first column (20). The Y1 axis servo motor (51) drives the Y1 axis slide plate (54) to slide on the Y1 axis guide rail (52) through the Y1 axis lead screw (53). The Y2 axis feed assembly includes a Y2 axis guide rail (62) and a Y2 axis servo motor (61) mounted on the second column (30). The Y2 axis servo motor (61) drives the Y2 axis slide plate (64) to slide on the Y2 axis guide rail (62) via the Y2 axis lead screw (63). The Z1 axis feed assembly includes a Z1 axis servo motor and a Z1 axis guide rail (72) mounted on the Y1 axis slide plate (54). The Z1 axis servo motor drives the Z1 axis slide plate (74) to slide on the Z1 axis guide rail (72) via the Z1 axis lead screw (73). The Z2 axis feed assembly includes a Z2 axis servo motor (81) and a Z2 axis guide rail (82) mounted on the Y2 axis slide (64). The Z2 axis servo motor (81) drives the chamfered slide (84) to slide on the Z2 axis guide rail (82) via the Z2 axis lead screw (83). A first motor (75) is installed on the Z1 axis slide plate (74), and the first motor (75) drives the drilling and tapping tool to rotate through the first spindle unit (76); A second motor (85) is installed on the chamfering slide (84), and the second motor (85) drives the chamfering tool to rotate through the second spindle unit (86).

2. The dual-station drilling and tapping center according to claim 1, characterized in that: The first chuck (34) and / or the second chuck (44) are hydraulic chucks used to mount chuck-shaped workpieces.

3. The dual-station drilling and tapping center according to claim 1, characterized in that: The first chuck (34) and / or the second chuck (44) are pneumatic chucks used to hold chuck-shaped workpieces.

4. A dual-station drilling and tapping center according to claim 2 or 3, characterized in that: The first chuck (34) and / or the second chuck (44) obtain power from the fluid power source (90).

5. A dual-station drilling and tapping center according to claim 4, characterized in that: The fluid power source (90) includes a hydraulic station valve assembly and / or a pneumatic station valve assembly.

6. A dual-station drilling and tapping center according to claim 5, characterized in that: It is also equipped with a processor unit, which controls the X1 axis servo motor (31), X2 axis servo motor (41), Y1 axis servo motor (51), Y2 axis servo motor (61), Z1 axis servo motor, Z2 axis servo motor (81), first motor (75), second motor (85) and fluid power source (90) to realize chuck displacement and workpiece processing.

7. A dual-station drilling and tapping center according to claim 6, characterized in that: It is also equipped with a power supply that supplies power to the dual-station drilling and tapping center, including power supply to the X1 axis servo motor (31), X2 axis servo motor (41), Y1 axis servo motor (51), Y2 axis servo motor (61), Z1 axis servo motor, Z2 axis servo motor (81), first motor (75), second motor (85) and fluid power source (90).

8. A dual-station drilling and tapping center according to claim 6, characterized in that: The processor unit includes a microcontroller, a PLC, or a machine tool CNC system.

9. A dual-station drilling and tapping center according to claim 1, characterized in that: The first spindle unit (76) is the BT50 spindle unit.

10. A dual-station drilling and tapping center according to claim 1, characterized in that: The Z1 axis slide plate (74) is also equipped with a tool clamping cylinder (71), which is used to hold drilling and tapping tools.

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