A front-back symmetrical distributed full-automatic double-head inverted vertical lathe

Abstract

The present application relates to a kind of positive back symmetry distributed full-automatic double-head inverted vertical lathe field, more particularly to a kind of positive back symmetry distributed full-automatic double-head inverted vertical lathe, including base, base is equipped with stand, and the positive side and the back side of stand are slidably equipped with Z-axis feed unit by X-axis feed unit to realize horizontal movement and vertical lifting, and each group of Z-axis feed unit is vertically equipped with liftable spindle chuck assembly, and the right side of base is equipped with full-automatic twelve-station circulating magazine station unit for placing workpiece.The present application, by the cooperation of base, stand, full-automatic twelve-station circulating magazine unit, first mechanical hand component and second mechanical hand component, two groups of Z-axis feed unit, X-axis feed unit and spindle chuck assembly, constitutes a kind of positive back symmetry distributed full-automatic double-head inverted vertical lathe, realizes automatic feeding and discharging, and the whole space layout is compact, occupies less space, improves the overall production efficiency of workpiece double-end machining.

Description

Technical Field

[0001] This invention relates to the field of a front-back symmetrical distributed fully automatic double-head inverted vertical lathe, and more particularly to a front-back symmetrical distributed fully automatic double-head inverted vertical lathe. Background Technology

[0002] The double-headed inverted vertical lathe is a CNC vertical lathe equipped with dual spindles, an inverted layout, and a double turret structure. It is mainly used for automated double-sided machining of disc-shaped and short shaft-shaped parts.

[0003] Currently, some dual-head inverted vertical lathes on the market have loosely arranged functional modules, long production lines, large machine footprint, and insufficient site utilization. Moreover, most of the equipment adopts a straight or circular layout, and separate passage space needs to be reserved for robotic arms and workpiece transfer, which further exacerbates the problem of excessive footprint. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies by proposing a front-back symmetrical distributed fully automatic double-head inverted vertical car.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A fully automatic double-headed inverted vertical lathe with front and back symmetry and distributed configuration includes a base with columns on the base. Z-axis feed units are slidably mounted on the front and back sides of the columns via X-axis feed units to achieve horizontal movement and vertical lifting. Each Z-axis feed unit is vertically equipped with a liftable spindle chuck assembly. A fully automatic twelve-station circulating material storage unit for placing workpieces is provided on the right side of the base. The fully automatic twelve-station circulating material storage unit includes twelve circulating material storage units, each configured with a loading position and a receiving position corresponding to two spindle chuck assemblies. A first robot arm assembly, a second robot arm assembly, and two sets of tool assemblies are arranged sequentially along the Y-axis between the columns and the fully automatic twelve-station circulating material storage unit, and the two sets of tool assemblies correspond one-to-one with the two sets of spindle chuck assemblies. One set of spindle chuck assemblies picks up the workpiece from the fully automatic twelve-station circulating material bin unit and moves it to the corresponding tool assembly position to complete the single-end turning of the workpiece. After the workpiece is flipped by the first robot assembly and transferred by the second robot assembly, it is clamped by another set of spindle chuck assemblies to complete the turning of the other end of the workpiece. The finished workpiece is sent back to the fully automatic twelve-station circulating material bin unit by the spindle chuck assembly.

[0006] Preferably, the first robotic arm assembly includes a support column, a first vertical drive unit is vertically fixedly mounted on the right side of the support column, and a rotary drive unit is fixedly mounted on the movable slide of the first vertical drive unit. The first vertical drive unit is used to drive the rotary drive unit to perform vertical lifting and lowering movements.

[0007] Preferably, the second robotic arm assembly includes a mounting column, a horizontal drive unit is fixedly mounted on the right side of the mounting column, and a second vertical drive unit is fixedly mounted on the movable slide of the horizontal drive unit. The horizontal drive unit is used to drive the second vertical drive unit to perform horizontal translational movement.

[0008] Preferably, a second L-shaped bracket is fixedly installed on the movable slide of the second vertical drive unit, and a second auxiliary chuck assembly is assembled on the second L-shaped bracket. The second vertical drive unit is used to drive the second auxiliary chuck assembly to move vertically up and down to complete the workpiece docking and transfer.

[0009] Preferably, the base is surrounded by a protective cover, and protective doors are installed on both the left and right sides of the protective cover. The protective doors are used for equipment protection and maintenance operations.

[0010] Preferably, the fully automatic twelve-station circulating silo unit includes a workbench, with twelve workpiece placement stations evenly arranged in a ring at the top of the workbench. The twelve workpiece placement stations are driven to circulate through a sprocket and chain drive unit.

[0011] The beneficial effects of this invention are as follows: In this invention, a fully automatic double-headed inverted vertical lathe is constructed by cooperating and setting up a base, column, fully automatic twelve-station circulating material bin unit, first robot arm assembly and second robot arm assembly, two sets of Z-axis feed units, X-axis feed units and spindle chuck assembly, which realizes automatic loading and unloading, has a very short cycle time, and the entire space layout is compact, occupying little space, thus improving the overall production efficiency of double-headed processing of workpieces. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a front-back symmetrical distributed fully automatic double-headed inverted vertical car proposed in this invention; Figure 2 This is a schematic diagram of the structure of a front-back symmetrical distributed fully automatic double-headed inverted vertical car proposed in this invention; Figure 3 This is a schematic diagram of the structure of a front-back symmetrical distributed fully automatic double-headed inverted vertical car proposed in this invention; Figure 4 This is a schematic diagram of the structure of a front-back symmetrical distributed fully automatic double-headed inverted vertical car proposed in this invention; Figure 5 This is a schematic diagram of the structure of a front-back symmetrical distributed fully automatic double-headed inverted vertical car proposed in this invention.

[0013] In the diagram: 1. Base; 2. Column; 3. Z-axis feed unit; 4. X-axis feed unit; 5. Fully automatic twelve-station circulating hopper unit; 6. Protective cover; 7. Spindle chuck assembly; 8. Tool assembly; 9. First robot arm assembly; 91. First vertical drive unit; 92. Rotary drive unit; 93. First auxiliary chuck assembly; 10. Second robot arm assembly; 101. Horizontal drive unit; 102. Second vertical drive unit; 103. Second auxiliary chuck assembly. Detailed Implementation

[0014] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0015] Reference Figure 1-5 A fully automatic double-headed inverted vertical carriage with front and back symmetry distributed structure includes a base 1, on which a column 2 is provided. On both sides of the column 2, a Z-axis feed unit 3 is slidably mounted through an X-axis feed unit 4 to ensure the stability of the movement and operation of the Z-axis feed unit 3.

[0016] The Z-axis feed unit 3 is driven by the X-axis feed unit 4. Both the X-axis feed unit 4 and the Z-axis feed unit 3 adopt a drive structure of servo motor and ball screw. Each Z-axis feed unit 3 is vertically equipped with a liftable spindle chuck assembly 7. The slide of the Z-axis feed unit is equipped with a counterweight mechanism to accommodate rapid Z-axis movement. The spindle chuck assembly 7 adopts an inverted clamping structure and has an internal center water outlet mechanism for easy cooling and effective chip removal. The inverted layout also facilitates the natural fall of turning chips, reducing chip accumulation on the workpiece surface.

[0017] The right side of the base 1 is equipped with a fully automatic twelve-station circulating material hopper unit 5 for placing workpieces. The top of the worktable of the fully automatic twelve-station circulating material hopper unit 5 has twelve workpiece placement stations evenly arranged in a ring, and is driven by a sprocket and chain drive unit to circulate continuously, enabling continuous automatic feeding of workpieces and collection of finished products. The fully automatic twelve-station circulating material hopper unit 5 includes twelve circulating material hopper units, with one loading position and one unloading position, corresponding to two spindle chuck assemblies 7 respectively. The center distance between the two spindle chuck assemblies 7 is 1524mm.

[0018] The first robotic arm assembly 9 and the second robotic arm assembly 10 are arranged sequentially along the Y-axis between the column 2 and the fully automatic twelve-station circulating material hopper unit 5. Tool assemblies 8 for workpiece turning operations are also provided on both sides of the column 2. The two sets of tool assemblies 8 correspond one-to-one with the two sets of spindle chuck assemblies 7. The tool assembly 8 includes a tool holder and a turning tool. The tool holder is fixedly installed on both sides of the column 2 and corresponds to the machining position of the spindle chuck assembly 7. The turning tool is detachably assembled on the tool holder.

[0019] The base 1 is surrounded by a protective cover 6. The left and right sides of the protective cover 6 are equipped with openable protective doors. The protective doors are used for equipment protection and maintenance operations. The closed protective cover can block the splashing of chips and cutting fluid, while the openable protective doors facilitate daily maintenance and troubleshooting by the staff. In addition, an automatic chip conveyor is provided on the right side of the base 1 corresponding to the tool assembly 8, which can collect the chips generated during processing.

[0020] During operation, the X-axis feed unit 4 and the Z-axis feed unit 3 work together to drive the spindle chuck assembly 7 to move horizontally and lift vertically. One set of spindle chuck assemblies 7 picks up the workpiece from the fully automatic twelve-station circulating material bin unit 5 and moves it to the corresponding tool assembly 8 to complete the single-end turning of the workpiece. Then, the workpiece is handed over to the first robot arm assembly 9. After the workpiece is flipped by the first robot arm assembly 9 and transferred by the second robot arm assembly 10, it is clamped by another set of spindle chuck assemblies 7 to complete the turning of the other end of the workpiece. Finally, the finished workpiece is sent back to the fully automatic twelve-station circulating material bin unit 5 by the spindle chuck assembly 7, completing the fully automated double-head machining of the workpiece. The entire process does not require manual intervention, has a high degree of automation, and the process is tightly connected, improving the overall production efficiency of double-head machining of the workpiece.

[0021] The first robotic arm assembly 9 includes a support column. A first vertical drive unit 91 is vertically fixedly mounted on the right side of the support column. A rotary drive unit 92 is fixedly mounted on the movable slide of the first vertical drive unit 91. The first vertical drive unit 91 drives the rotary drive unit 92 to perform vertical lifting and lowering movements. A first L-shaped bracket is fixedly connected to the rotary output end of the rotary drive unit 92. A first auxiliary chuck assembly 93 is fixedly mounted on the first L-shaped bracket. The rotary drive unit 92 drives the first auxiliary chuck assembly 93 to rotate, thereby realizing workpiece flipping and orientation adjustment, and completing workpiece posture switching.

[0022] The second robotic arm assembly 10 includes a mounting column. A horizontal drive unit 101 is fixedly mounted on the right side of the mounting column. A second vertical drive unit 102 is fixedly mounted on the movable slide of the horizontal drive unit 101. The horizontal drive unit 101 drives the second vertical drive unit 102 to perform horizontal translational movement. A second L-shaped bracket is fixedly mounted on the movable slide of the second vertical drive unit 102. A second auxiliary chuck assembly 103 is mounted on the second L-shaped bracket. The second vertical drive unit 102 drives the second auxiliary chuck assembly 103 to move vertically up and down, completing the workpiece docking and transfer. The main spindle chuck assembly 7, the first auxiliary chuck assembly 93, and the second auxiliary chuck assembly 103 all adopt the existing three-jaw chuck structure. The three jaws of the three-jaw chuck are evenly arranged in a ring and can open and close synchronously for clamping.

[0023] In this embodiment, when disc-shaped or short-shaft-shaped workpieces need to be turned, the workers can manually or through other automated material systems place the disc-shaped or short-shaft-shaped workpieces to be processed in sequence on the empty workstations in the silo in advance, or through other automated material systems, the sprocket and chain drive unit can precisely drive the overall cycle to move the blank workpieces to be processed to the material pick-up reference workstation, thus realizing continuous automatic material preparation throughout the process.

[0024] The Z-axis feed unit 3 and X-axis feed unit 4 on one side of the column start working together, driving the inverted spindle chuck assembly 7 to move directly above the material picking station of the fully automatic twelve-station circulating hopper unit 5.

[0025] Subsequently, the spindle chuck assembly 7 starts working, and its built-in hydraulic clamping drive structure responds quickly to control the three-jaw chuck to open and close synchronously, clamping the workpiece on the workstation. After the material is picked up, the Z-axis feed unit 3 and the X-axis feed unit 4 start working together to smoothly lift and move the spindle chuck assembly 7 holding the blank workpiece, remove it from the material hopper workstation, and move it to the machining reference position in front of the corresponding side tool assembly 8, where it is positioned and locked, waiting for the turning operation.

[0026] After the workpiece is positioned, the single-sided tool assembly 8 performs turning operations on the workpiece. Once all turning operations on one end of the workpiece are completed, the Z-axis feed unit 3 and the X-axis feed unit 4 work together to move the workpiece directly above the first robot arm assembly 9. The first vertical drive unit 91 of the first robot arm assembly 9 then drives the rotary drive unit 92 to vertically lift and fine-tune the workpiece, causing the first auxiliary chuck assembly 93 on the first L-shaped bracket to engage with the workpiece that has completed single-end machining. The first auxiliary chuck assembly 93 clamps the outer reference surface of the machined end of the workpiece. After the clamping is stable, the original spindle chuck assembly 7 releases the workpiece, completing the workpiece unclamping and handover.

[0027] After the handover is completed, the rotary drive unit 92 starts working, driving the first auxiliary chuck assembly 93 and the entire workpiece to rotate and flip precisely 180°, completely changing the workpiece's up and down processing posture. After the flip is completed, the first robot arm assembly 9 remains vertically positioned, waiting for the second robot arm assembly to dock and transfer.

[0028] After the first robotic arm completes the workpiece flipping and positioning, the second robotic arm assembly 10 starts the linkage operation. The horizontal drive unit 101 of the second robotic arm assembly 10 first drives the second vertical drive unit 102 to move horizontally as a whole, close to the position of the workpiece to be transferred. Then, the second vertical drive unit 102 finely adjusts the vertical height so that the second auxiliary chuck assembly 103 on the second L-shaped bracket aligns with the unprocessed end of the workpiece.

[0029] The second auxiliary chuck assembly 103 uses three jaws to simultaneously open and close, clamping the unprocessed end of the workpiece. After the workpiece is securely clamped, the first auxiliary chuck assembly 93 releases the workpiece, completing the secondary transfer of the workpiece. After the workpiece transfer is completed, the second robotic arm assembly 10 moves the workpiece to the clamping reference position of the other right spindle chuck assembly 7.

[0030] After receiving the workpiece, the inverted spindle chuck assembly 7 on the right side quickly activates the built-in hydraulic clamping structure, and the three jaws open and close synchronously to firmly clamp the unprocessed end of the workpiece. After clamping and positioning are completed, the second robot arm assembly 10 releases the workpiece and resets to the initial standby position, completing all transfer processes.

[0031] Subsequently, the X-axis feed unit 4 and Z-axis feed unit 3 on the other right work together to align the workpiece with the tool assembly 8 on the other right, completing all turning operations on the other end of the workpiece. After the workpiece is fully machined on both ends, the Z-axis feed unit 3 and X-axis feed unit 4 work together to smoothly move the spindle chuck assembly 7 holding the finished workpiece, accurately transferring the finished workpiece to the finished product receiving station of the fully automatic twelve-station circulating material hopper unit 5. After reaching the receiving station, the spindle chuck assembly 7 releases the workpiece, and the finished workpiece falls smoothly into the material hopper station, completing the entire process of single workpiece machining.

[0032] In this invention, a fully automatic double-headed inverted vertical lathe is constructed by the coordinated arrangement of a base 1, a column 2, a fully automatic twelve-station circulating material hopper unit 5, a first robotic arm assembly 9 and a second robotic arm assembly 10, two sets of Z-axis feed units 3, X-axis feed units 4 and a spindle chuck assembly 7. This enables fully automated double-headed processing of workpieces throughout the entire process. The overall spatial layout is compact, occupies little space, and achieves automatic loading and unloading with a very short cycle time, which is superior to two horizontal lathes + gantry robotic arms or two horizontal lathes + a six-axis robot.

[0033] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A fully automatic double-headed inverted vertical cart with front-back symmetry and distributed design, comprising a base (1), characterized in that, The base (1) is provided with a column (2). The column (2) is slidably equipped with a Z-axis feed unit (3) on the front and back sides via an X-axis feed unit (4) to achieve horizontal movement and vertical lifting. Each Z-axis feed unit (3) is vertically provided with a liftable spindle chuck assembly (7). The right side of the base (1) is provided with a fully automatic twelve-station circulating material storage unit (5) for placing workpieces. The fully automatic twelve-station circulating material storage unit (5) contains twelve circulating material storage units, each configured with a corresponding loading position and receiving position of two spindle chuck assemblies (7). The column (2) and the fully automatic twelve-station circulating material storage unit (5) are arranged sequentially along the Y-axis direction with a first robot arm assembly (9), a second robot arm assembly (10), and two sets of tool assemblies (8). The two sets of tool assemblies (8) correspond one-to-one with the two sets of spindle chuck assemblies (7). One set of spindle chuck assemblies (7) takes material from the fully automatic twelve-station circulating material bin unit (5) and moves it to the corresponding tool assembly (8) to complete the single-end turning of the workpiece. After the workpiece is flipped by the first robot assembly (9) and transferred by the second robot assembly (10), it is clamped by another set of spindle chuck assemblies (7) to complete the turning of the other end of the workpiece. The finished workpiece is sent back to the fully automatic twelve-station circulating material bin unit (5) by the spindle chuck assembly (7).

2. The fully automatic double-headed inverted vertical lathe according to claim 1, characterized in that, The first robotic arm assembly (9) includes a support column, on the right side of which a first vertical drive unit (91) is fixedly mounted. A rotary drive unit (92) is fixedly mounted on the movable slide of the first vertical drive unit (91). The first vertical drive unit (91) is used to drive the rotary drive unit (92) to perform vertical lifting and lowering movements.

3. The fully automatic double-headed inverted vertical lathe according to claim 1, characterized in that, The second robotic arm assembly (10) includes a mounting post, on the right side of which a horizontal drive unit (101) is fixedly mounted. A second vertical drive unit (102) is fixedly mounted on the movable slide of the horizontal drive unit (101). The horizontal drive unit (101) is used to drive the second vertical drive unit (102) to perform horizontal translational motion.

4. The fully automatic double-headed inverted vertical lathe according to claim 3, characterized in that, The second vertical drive unit (102) has a second L-shaped bracket fixedly installed on its movable slide. The second auxiliary chuck assembly (103) is mounted on the second L-shaped bracket. The second vertical drive unit (102) is used to drive the second auxiliary chuck assembly (103) to move vertically up and down to complete the workpiece docking and transfer.

5. The fully automatic double-headed inverted vertical lathe according to claim 1, characterized in that, The base (1) is surrounded by a protective cover (6), and protective doors are installed on both the left and right sides of the protective cover (6). The protective doors are used for equipment protection and maintenance operations.

6. The fully automatic double-headed inverted vertical lathe according to claim 1, characterized in that, The fully automatic twelve-station circulating silo unit (5) includes a workbench, with twelve workpiece placement stations evenly arranged in a ring at the top of the workbench. The twelve workpiece placement stations are driven to circulate through a sprocket and chain drive unit.

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