Double-spindle automatic lathe

Abstract

The utility model relates to a double-spindle precision automatic lathe which comprises a rack, a first spindle and a second spindle, the first spindle is installed on the rack through a first linear mechanism, the second spindle is installed on a second linear mechanism, the second linear mechanism is matched with a second transverse mechanism to be installed on the rack, and the first spindle and the second spindle are oppositely arranged. A vertical seat is arranged between the first main shaft and the second main shaft. A guide sleeve, a moving frame, a cutter plate, a first power cutter set and a second power cutter set are arranged on the vertical seat, the guide sleeve and the first main shaft are coaxially arranged, the moving frame is installed above the guide sleeve through a first transverse mechanism, the first transverse mechanism drives the moving frame to transversely move, and the first power cutter set is fixedly installed on the cutter plate; the tool plate is matched with the lifting mechanism to be installed on the movable frame, the lifting mechanism drives the tool frame to do lifting motion on the movable frame, the second power tool set is located on one side of the guide sleeve, and the second transverse mechanism drives the second main shaft to move to be aligned with the second power tool set.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control machining, and particularly to a double-spindle sliding headstock lathe. Background Art

[0002] A sliding headstock lathe, also known as a sliding head type numerical control lathe, belongs to precision machining equipment, and can simultaneously clamp and efficiently complete compound machining such as turning, milling, drilling, boring, tapping, engraving, etc., and is mainly used for batch machining of precision hardware and special-shaped non-standard parts of shafts. In the prior art, the distribution of the tools is relatively complex, and the machining steps cannot be completed in a pipeline manner, which greatly affects the production efficiency. At the same time, when installing the workpiece, it needs to be clamped multiple times, and repositioning is required after clamping, resulting in error accumulation, which greatly affects the product quality. Summary of the Utility Model

[0003] To solve the above problems, the utility model provides a double-spindle sliding headstock lathe.

[0004] To achieve the above object, the technical solution adopted by the utility model is as follows: The utility model relates to a double-spindle sliding headstock lathe, which includes a frame, a first spindle and a second spindle. The first spindle is installed on the frame through a first linear mechanism, the second spindle is installed on a second linear mechanism, and the second linear mechanism is installed on the frame in cooperation with a second transverse mechanism. The first spindle and the second spindle are arranged oppositely. A vertical seat is provided between the first spindle and the second spindle. A guide sleeve, a moving frame, a tool plate, a first power tool group and a second power tool group are provided on the vertical seat. The guide sleeve is coaxially arranged with the first spindle. The moving frame is installed above the guide sleeve through a first transverse mechanism, and the first transverse mechanism drives the moving frame to move horizontally. The first power tool group is fixedly installed on the tool plate, and the tool plate is installed on the moving frame in cooperation with a lifting mechanism. The lifting mechanism drives the tool holder to move up and down on the moving frame. The second power tool group is located on one side of the guide sleeve, and the second transverse mechanism drives the second spindle to move to align with the second power tool group.

[0005] Preferably, a turning tool group is provided on the tool plate, and the turning tool group is used for installing turning tools, and the tool tips of the turning tools are arranged downward with respect to the tool plate.

[0006] Preferably, the first power tool group includes a first vertical power head, a first straight power head and a first power driving motor. The first power driving motor is fixedly installed on the tool plate. The first vertical power head and the first straight power head are respectively installed below the first power driving motor. The first power driving motor is respectively connected to the first vertical power head and the first straight power head through gear transmission.

[0007] Preferably, the tool mounting portion of the first vertical power head is arranged downward with respect to the tool plate, and the tool mounting portion of the first direct power head is arranged in the direction of the tool plate.

[0008] Preferably, the second power tool group includes a second power head and a second power driving motor. The second power driving motor is fixedly installed on the vertical seat, and the second power driving motor is connected to the second power head through belt transmission.

[0009] Preferably, the tool mounting portion of the second power head is arranged in the direction of the second main shaft.

[0010] Preferably, a synchronous guide sleeve device is further provided on the machine frame. The synchronous guide sleeve device is connected to the first main shaft and the guide sleeve through aluminum belts respectively. When the first main shaft rotates, the first main shaft drives the synchronous guide sleeve device to rotate through the aluminum belt, and the synchronous guide sleeve device then drives the guide sleeve to rotate through the aluminum belt.

[0011] Preferably, the double-spindle gang tool lathe further includes an automatic feeding mechanism. The automatic feeding mechanism includes a blanking air blowing device, a product recovery box, and a conveyor belt device. The product recovery box is arranged on one side of the second power tool group, the conveyor belt device is arranged on one side of the product recovery box, the product recovery box is communicated with the conveyor belt device, the blanking air blowing device is arranged on the second main shaft, and the blanking air blowing device ejects the workpiece arranged on the second main shaft into the product recovery box.

[0012] Preferably, the product recovery box is provided with a recovery port, and the recovery port is on the same horizontal line as the second main shaft

[0013] Preferably, the blanking air blowing device includes a cylinder, a connecting rod, and a ejector rod. The cylinder is fixedly installed on the second main shaft, the ejector rod is arranged inside the second main shaft, the ejector rod is aligned with the axis of the second main shaft, and the connecting rod is respectively connected to the connecting rod of the cylinder and the ejector rod.

[0014] The beneficial effects of the present utility model are as follows: The present utility model relates to a double-spindle gang tool lathe. The gang tool lathe arranges tools in a double-axis manner, greatly reducing the processing cycle time of the gang tool lathe and improving the overall production efficiency. By reducing the number of clamping times, the problem of error accumulation caused by the conversion of the positioning reference is avoided. The gang tool lathe of the present utility model can complete most or all of the processing procedures in one clamping, thereby shortening the product manufacturing process chain, improving production efficiency, being able to adapt to various processing requirements, improving production flexibility, and reducing labor costs. At the same time, the gang tool lathe of the present utility model is designed to be lightweight, with a compact internal structure, a small floor area, and saves production space. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the double-spindle gang tool lathe of the present utility model.

[0016] Figure 2 It is a schematic structural diagram of another angle of the double-spindle sliding headstock of the present utility model.

[0017] Figure 3 It is a schematic structural diagram of the tool plate, the first power tool group and the turning tool group of the present utility model.

[0018] Figure 4 It is a schematic structural diagram of the second power tool group of the present utility model.

[0019] Figure 5 It is a schematic structural diagram of the synchronous guide sleeve device of the present utility model.

[0020] Figure 6 It is a schematic structural diagram of the product recovery box and the conveyor belt device of the present utility model.

[0021] Figure 7 It is a schematic structural diagram of the ejector air blowing device of the present utility model.

[0022] Reference numerals

[0023] 1. Frame; 2. First main shaft; 21. Synchronous guide sleeve device; 211. Aluminum strip; 3. Second main shaft; 4. Upright seat; 41. Guide sleeve; 42. Moving frame; 43. Tool plate; 44. First power tool group; 441. First vertical power head; 442. First straight power head; 443. First power drive motor; 45. Second power tool group; 451. Second power head; 452. Second power drive motor; 46. Turning tool group; 461. Turning tool.

[0024] 5. First linear mechanism; 6. Second linear mechanism; 7. First transverse mechanism; 8. Second transverse mechanism; 9. Lifting mechanism; 10. Automatic feeding mechanism; 101. Ejector air blowing device; 1011. Cylinder; 1012. Connecting rod; 1013. Connecting rod; 1014. Ejector rod; 102. Product recovery box; 103. Recovery port; 104. Conveyor belt device; 105. Conveyor port. Detailed implementation manners

[0025] Please refer to Figure 1-7As shown in the figure, the utility model relates to a double-spindle sliding headstock lathe, which comprises a frame 1, a first spindle 2 and a second spindle 3. The first spindle 2 is installed on the frame 1 through a first linear mechanism 5. The second spindle 3 is installed on a second linear mechanism 6. The second linear mechanism 6 is installed on the frame 1 in cooperation with a second transverse mechanism 8. The first spindle 2 and the second spindle 3 are arranged oppositely. A vertical seat 4 is arranged between the first spindle 2 and the second spindle 3. A guide sleeve 41, a moving frame 42, a tool plate 43, a first power tool group 44 and a second power tool group 45 are arranged on the vertical seat 4. The guide sleeve 41 is coaxially arranged with the first spindle 2. The moving frame 42 is installed above the guide sleeve 41 through a first transverse mechanism 7. The first transverse mechanism 7 drives the moving frame 42 to move horizontally. The first power tool group 44 is fixedly installed on the tool plate 43. The tool plate 43 is installed on the moving frame 42 through a lifting mechanism 9. The lifting mechanism 9 drives the tool plate 43 to move up and down. The second power tool group 45 is located on one side of the guide sleeve 41. The second transverse mechanism 8 drives the second spindle 3 to move to align with the second power tool group 45.

[0026] In the utility model, the first spindle 2 is installed on the first linear mechanism 5, and the first linear mechanism 5 drives the first spindle 2 to move axially. The second spindle 3 is installed on the second linear mechanism 6, and the second linear mechanism 6 drives the second spindle 3 to move axially. Among them, the second linear mechanism 6 is installed on the second transverse mechanism 8, and the second transverse mechanism 8 drives the second linear mechanism 6 to move horizontally. The second transverse mechanism 8 drives the second spindle 3 to move horizontally through the second linear mechanism 6.

[0027] In the utility model, a turning tool group 46 is arranged on the tool plate 43. The turning tool group 46 and the first power tool group 44 are fixedly installed on the tool plate 43. The turning tool group 46 is used for installing a turning tool 461. The cutting head of the turning tool 461 is arranged downward facing the tool plate 43.

[0028] Among them, the first power tool group 44 includes a first vertical power head 441, a first straight power head 442 and a first power driving motor 443. The first power driving motor 443 is fixedly installed on the tool plate 43. The first vertical power head 441 and the first straight power head 442 are respectively installed below the first power driving motor 443. In this embodiment, the first power driving motor 443 is respectively connected to the first vertical power head 441 and the first straight power head 442 through gear transmission. The first power driving motor 443 drives the first vertical power head 441 and the first straight power head 442 to work through a mechanical transmission method.

[0029] Furthermore, the tool mounting portion of the first vertical power head 441 is arranged downward facing the tool plate 43. The first vertical power head 441 is mainly used to perform lateral machining on the workpiece, enabling the tool to cut along the side surface of the workpiece. The tool mounting portion of the first straight power head 442 is arranged facing the tool plate 43. The first straight power head 442 is mainly used to perform axial machining on the workpiece, enabling the tool to cut along the axial direction of the workpiece.

[0030] In the present utility model, the second power tool group 45 includes a second power head 451 and a second power driving motor 452. The second power driving motor 452 is fixedly installed on the vertical seat 4. In this embodiment, the second power driving motor 452 is connected to the second power head 451 through belt transmission. The second power driving motor 452 drives the second power head 451 to work through mechanical transmission. Among them, the tool mounting portion of the second power head 451 faces the second main shaft 3. The second power head 451 is mainly used to perform axial machining on the workpiece clamped on the second main shaft 3.

[0031] When the first main shaft 2 clamps the workpiece, the workpiece passes through the guide sleeve 41. The guide sleeve 41 supports the workpiece, which plays a role in supporting the workpiece. By reducing the overhanging length of the workpiece during machining, the machining stability is enhanced. In this embodiment, a synchronous guide sleeve device 21 is further provided on the frame 1. The synchronous guide sleeve device 21 is respectively connected to the first main shaft 2 and the guide sleeve 41 through an aluminum strip 211. When the first main shaft 2 rotates, the first main shaft 2 drives the synchronous guide sleeve device 21 to rotate through the aluminum strip 211. The synchronous guide sleeve device 21 then drives the guide sleeve 41 to rotate through the aluminum strip 211, thereby realizing the synchronous rotation of the first main shaft 2 and the guide sleeve 41. By synchronous rotation, the vibration caused by the excessive overhanging of the workpiece is reduced, the stability is improved, and the problem of bending or deformation of the workpiece during machining is avoided.

[0032] In the present utility model, the double-spindle sliding headstock lathe further includes an automatic feeding mechanism 10, and the automatic feeding mechanism 10 includes a blanking air blowing device 101, a product recovery box 102, and a conveyor belt device 104. In this embodiment, the product recovery box 102 is arranged on one side of the second power tool block 45, the product recovery box 102 is provided with a recovery port 103, and the recovery port 103 is on the same horizontal line as the clamping portion of the second spindle 3. The conveyor belt device 104 is arranged on one side of the product recovery box 102, and a conveying port 105 connected to the conveyor belt device 104 is arranged on one side of the product recovery box 102. The conveyor belt device 104 is connected to the discharging portion (not shown in the figure). The blanking air blowing device 101 is arranged on the second spindle 3, and the blanking air blowing device 101 includes a cylinder 1011, a connecting rod 1013, and a ejector rod 1014. The cylinder 1011 is fixedly installed on the second spindle 3. The ejector rod 1014 is arranged inside the second spindle 3, and the ejector rod 1014 is aligned with the axis of the second spindle 3. The connecting rod 1013 is respectively connected to the connecting rod 1012 of the cylinder 1011 and the ejector rod 1014.

[0033] When the workpiece clamped by the second spindle 3 is processed, the second linear mechanism 6 and the second transverse mechanism 8 are used to move the second spindle 3 to be close to and aligned with the recovery port 103. By evacuating the inside of the cylinder 1011, the connecting rod 1012 moves inward. The connecting rod 1012 drives the ejector rod 1014 to move synchronously through the connecting rod 1013, and the workpiece is ejected from the second spindle 3 to the recovery port 103. The workpiece enters the product recovery box 102 from the recovery port 103, and then enters the conveyor belt device 104 from the conveying port 105. The conveyor belt device 104 transports the workpiece to the discharging portion, thus realizing the steps of automatic feeding, reducing the manpower requirement, and improving the working efficiency.

[0034] The following is one of the operation processes of the present utility model: First, the first spindle 2 clamps the workpiece to be processed, and the workpiece to be processed passes through the guide sleeve 41. The guide sleeve 41 supports and holds the workpiece. Then, the first transverse mechanism 7 and the lifting mechanism 9 drive the tool plate 43 to move, and the workpiece is processed by the first power tool block 44 and the turning tool block 46 on the tool plate 43. After the processing is completed, the first linear mechanism 5 drives the first spindle 2 to move axially, and the workpiece continues to pass through the guide sleeve 41 as the first spindle 2 moves axially. At this time, the second linear mechanism 6 drives the second spindle 3 to move axially. After the second spindle 3 receives the workpiece, it clamps and fixes the workpiece. At the same time, the first spindle 2 cancels the clamping of the workpiece, and the workpiece is cut off by the turning tool block 46. The second transverse mechanism 8 moves the second spindle 3 to align with the second power tool block 45 and processes the workpiece again to make the workpiece take shape.

[0035] The utility model relates to a double-spindle sliding headstock lathe. By arranging tools in a double-axis manner, the sliding headstock lathe greatly reduces the processing cycle time and improves the overall production efficiency. By reducing the number of clamping operations, the problem of error accumulation caused by the conversion of the positioning reference is avoided. The sliding headstock lathe of the utility model can complete most or all of the processing procedures in one clamping, thus shortening the product manufacturing process chain, improving the production efficiency, being able to adapt to various processing requirements, enhancing the production flexibility, and reducing the labor cost. At the same time, the sliding headstock lathe of the utility model is designed to be lightweight, with a compact internal structure, a small floor area, and saves production space.

[0036] The above embodiments are only descriptions of the preferred embodiments of the utility model, and do not limit the scope of the utility model. Without departing from the design spirit of the utility model, various deformations and improvements made by those of ordinary skill in the art to the technical solution of the utility model shall fall within the protection scope determined by the claims of the utility model.

Claims

1. A double-spindle sliding headstock lathe, characterized in that: It includes a frame, a first main shaft and a second main shaft. The first main shaft is installed on the frame through a first linear mechanism. The second main shaft is installed on a second linear mechanism, and the second linear mechanism is installed on the frame in cooperation with a second transverse mechanism. The first main shaft and the second main shaft are arranged oppositely. A vertical seat is provided between the first main shaft and the second main shaft. A guide sleeve, a moving frame, a tool plate, a first power tool group and a second power tool group are provided on the vertical seat. The guide sleeve is coaxially arranged with the first main shaft. The moving frame is installed above the guide sleeve through a first transverse mechanism, and the first transverse mechanism drives the moving frame to move horizontally. The first power tool group is fixedly installed on the tool plate, and the tool plate is installed on the moving frame in cooperation with a lifting mechanism. The lifting mechanism drives the tool holder to move up and down on the moving frame. The second power tool group is located on one side of the guide sleeve, and the second transverse mechanism drives the second main shaft to move to align with the second power tool group.

2. The double-spindle sliding headstock machine tool according to claim 1, characterized in that: A turning tool group is provided on the tool plate. The turning tool group is used for installing turning tools, and the cutting heads of the turning tools are arranged facing downwards of the tool plate.

3. A double-spindle gang-type automatic lathe according to claim 1, wherein: The first power tool group includes a first vertical power head, a first straight power head and a first power driving motor. The first power driving motor is fixedly installed on the tool plate. The first vertical power head and the first straight power head are respectively installed below the first power driving motor. The first power driving motor is respectively connected to the first vertical power head and the first straight power head through gear transmission.

4. The double-spindle sliding headstock lathe according to claim 3, characterized in that: The tool installation part of the first vertical power head is arranged facing downwards of the tool plate, and the tool installation part of the first straight power head is arranged facing the direction of the tool plate.

5. A double-spindle sliding headstock lathe according to claim 1, characterized in that: The second power tool group includes a second power head and a second power driving motor. The second power driving motor is fixedly installed on the vertical seat, and the second power driving motor is connected to the second power head through belt transmission.

6. A double-spindle sliding headstock lathe according to claim 5, characterized in that: The tool installation part of the second power head is arranged facing the direction of the second main shaft.

7. A double-spindle sliding headstock lathe according to claim 1, characterized in that: A synchronous guide sleeve device is also provided on the frame. The synchronous guide sleeve device is respectively connected to the first main shaft and the guide sleeve through aluminum strips. When the first main shaft rotates, the first main shaft drives the synchronous guide sleeve device to rotate through the aluminum strip, and the synchronous guide sleeve device then drives the guide sleeve to rotate through the aluminum strip.

8. A double-spindle sliding headstock lathe according to claim 1, characterized in that: It further includes an automatic feeding mechanism. The automatic feeding mechanism includes a blanking blowing device, a product recovery box and a conveyor belt device. The product recovery box is arranged on one side of the second power tool group. The conveyor belt device is arranged on one side of the product recovery box. The product recovery box is communicated with the conveyor belt device. The blanking blowing device is arranged on the second main shaft, and the blanking blowing device ejects the workpiece arranged on the second main shaft into the product recovery box.

9. A double-spindle sliding headstock lathe according to claim 8, characterized in that: The product recovery box is provided with a recovery port, and the recovery port is on the same horizontal line as the second main shaft.

10. A double-spindle sliding headstock lathe according to claim 8, characterized in that: The blanking blowing device includes a cylinder, a connecting rod and a ejector rod. The cylinder is fixedly installed on the second main shaft. The ejector rod is arranged inside the second main shaft, and the ejector rod is aligned with the axis of the second main shaft. The connecting rod is respectively connected to the connecting rod of the cylinder and the ejector rod.

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