A double spindle machine tool with misalignment

Abstract

The utility model discloses a kind of dislocation formula double spindle machine tools, it is related to machining field.It includes rack, workstation, Y-axis moving assembly, first Z-axis moving assembly, second Z-axis moving assembly, first electric spindle, second electric spindle and dislocation formula tool magazine;Rack includes base and portal frame;Workstation is installed on base;Y-axis moving assembly is installed on portal frame;First Z-axis moving assembly and second Z-axis moving assembly are installed side by side on Y-axis moving assembly;First electric spindle and second electric spindle are respectively installed on first Z-axis moving assembly and second Z-axis moving assembly, and the position of first electric spindle is earlier than the position of second electric spindle;Dislocation formula tool magazine includes tool magazine support, driving device, multiple first tool magazine assemblies and multiple second tool magazine assemblies.The utility model can process two aluminum products simultaneously, or simultaneously process two same process parts in an aluminum product.

Description

Technical Field

[0001] This utility model relates to the field of machining, and in particular to a misaligned double-spindle machine tool. Background Technology

[0002] Machined aluminum products refer to parts or products with specific shapes, dimensions, and precision obtained by processing aluminum and aluminum alloy materials through machining processes such as turning, milling, and drilling. Aluminum products have a wide range of applications, such as in the new energy field, where they are used in power battery casings, body and chassis structural components for new energy vehicles. Aluminum products are processed using CNC machine tools. Currently, some CNC machine tools used for aluminum products have a single electric spindle structure, which can only process one aluminum product at a time, and cannot process two aluminum products simultaneously. This results in low processing efficiency and cannot meet the needs of large-scale aluminum product production. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a staggered dual-spindle machine tool that can process two aluminum products at the same time, or process two identical process parts of one aluminum product at the same time.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A staggered dual-spindle machine tool includes a frame, a worktable, a Y-axis moving assembly, a first Z-axis moving assembly, a second Z-axis moving assembly, a first electric spindle, a second electric spindle, and a staggered tool magazine. The frame includes a base and a gantry mounted on the base. The worktable is mounted on the base. The Y-axis moving assembly is mounted on the gantry. The first Z-axis moving assembly and the second Z-axis moving assembly are mounted side-by-side on the Y-axis moving assembly. The first electric spindle and the second electric spindle are respectively mounted on the first Z-axis moving assembly and the second Z-axis moving assembly, with the first electric spindle positioned forward of the second electric spindle. The staggered tool magazine is mounted on the gantry and located below the first and second electric spindles. The staggered tool magazine includes a tool magazine support, a drive unit, multiple sets of first tool magazine assemblies, and multiple sets of second tool magazine assemblies. The drive unit drives the tool magazine support to move back and forth along the X-axis direction. The first and second tool magazine assemblies are alternately mounted at the front of the tool magazine support, with the first tool magazine assembly positioned forward of the second tool magazine assembly.

[0006] As a further explanation of the above technical solution:

[0007] In the above technical solution, a forward support is fixedly connected between the first electric spindle and the first Z-axis moving assembly. The forward support is used to adjust the front and rear position of the first electric spindle relative to the second electric spindle.

[0008] In the above technical solution, a mounting plate is detachably connected to the front of the tool magazine bracket. Multiple rectangular notches are equidistantly arranged at the front end of the mounting plate along the Y-axis direction, so that the front end of the mounting plate forms alternating convex and concave parts. The front-to-back offset distance between the convex and concave parts is equal to the front-to-back offset distance between the first electric spindle and the second electric spindle. The first tool magazine assembly is mounted on the convex part, and the second tool magazine assembly is mounted on the concave part.

[0009] In the above technical solution, an X-axis guide rail is installed on the tool magazine bracket along the X-axis direction; a mounting bracket is fixedly connected to the bottom of the crossbeam of the gantry, and several X-axis sliders that are slidably connected to the X-axis guide rail are installed on both sides of the bottom of the mounting bracket; the driving device is a cylinder, which is fixedly connected to the bottom of the mounting bracket, and the output rod of the driving device is fixedly connected to the tool magazine bracket.

[0010] In the above technical solution, a protective cover is installed on the mounting bracket. The protective cover includes an integrally formed top plate, side plates and rear baffle. The top plate is located above the tool magazine bracket, the side plates are located on both sides of the tool magazine bracket, and the rear baffle is located behind the mounting plate.

[0011] In the above technical solution, a protective door is provided at the front end of the protective cover. The cross-section of the protective door is inverted L-shaped. An inverted L-shaped support rod is fixedly connected to each side of the back of the protective door. One end of the support rod is hinged to the front end of the top plate, and the other end of the support rod is hinged to an arc-shaped connecting rod. The end of the connecting rod away from the support rod is hinged to the mounting plate.

[0012] In the above technical solution, each group of first tool magazine assemblies and each group of second tool magazine assemblies include several tool magazine jaws, and each tool magazine jaw is provided with a U-shaped bayonet for accommodating tool holders.

[0013] Compared with the prior art, this utility model achieves at least the following beneficial effects:

[0014] The Y-axis moving component can drive the first Z-axis moving component and the second Z-axis moving component to move in the Y-axis direction, thereby adjusting the machining position of the first and second electric spindles in the Y-axis direction. The first Z-axis moving component and the second Z-axis moving component can respectively drive the first and second electric spindles to move in the Z-axis direction, thereby adjusting the machining position of the first and second electric spindles in the Z-axis direction, realizing the machining of aluminum products in the YZ-axis direction. Since the first and second electric spindles are staggered, when the first and second electric spindles work simultaneously, it is convenient to process two products at the same time or process two identical process parts in the front and rear areas of a product at the same time, which greatly improves the processing efficiency and is suitable for the processing of large batches of aluminum products. Moreover, the first and second tool magazine components in the staggered tool magazine can adapt to the tool changing operation of the first and second electric spindles. Attached Figure Description

[0015] One or more embodiments of the present invention will now be described by way of example only with reference to the accompanying drawings, in which:

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of this application;

[0017] Figure 2 This is a schematic diagram of the staggered tool magazine according to an embodiment of this application;

[0018] Figure 3 for Figure 2 A magnified view of a portion of region A;

[0019] Figure 4 This is a schematic diagram of the staggered tool magazine from another perspective of an embodiment of this application;

[0020] Figure 5 This is a schematic diagram of the connection structure of the staggered tool magazine, protective door, and protective cover according to an embodiment of this application.

[0021] Figure 6 This is a schematic diagram of the structure of the first and second electric spindles according to an embodiment of this application.

[0022] The following are the labels in the diagram: 1. Frame; 11. Base; 12. Gantry; 2. Worktable; 3. Y-axis moving assembly; 4. First Z-axis moving assembly; 5. Second Z-axis moving assembly; 6. First electric spindle; 7. Second electric spindle; 8. Offset tool magazine; 81. Tool magazine bracket; 82. Drive unit; 83. First tool magazine assembly; 84. Second tool magazine assembly; 9. Forward extension bracket; 10. Mounting plate; 101. Rectangular notch; 20. Protrusion; 30. Recess; 40. X-axis guide rail; 50. Mounting bracket; 60. X-axis slider; 70. Protective cover; 701. Top plate; 702. Side plate; 703. Rear baffle; 80. Protective door; 90. Support rod; 100. Connecting rod; 200. Tool magazine chuck; 210. U-shaped chuck; 300. Tool holder. Detailed Implementation

[0023] The present invention will now be described in detail with reference to exemplary embodiments shown in the accompanying drawings. However, it should be understood that the present application may be implemented in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided herein to make the disclosure of this application more complete and to fully convey the concept of the present application to those skilled in the art.

[0024] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "several" or "more than" means two or more, unless otherwise explicitly specified. In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. Moreover, "above," "over," and "on top" of a second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of a second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0025] like Figures 1-6As shown, the offset dual-spindle machine tool provided in this application embodiment includes a frame 1, a worktable 2, a Y-axis moving assembly 3, a first Z-axis moving assembly 4, a second Z-axis moving assembly 5, a first electric spindle 6, a second electric spindle 7, and an offset tool magazine 8. The frame 1 includes a base 11 and a gantry 12 mounted on the base 11; the worktable 2 is mounted on the base 11; the Y-axis moving assembly 3 is mounted on the gantry 12; the first Z-axis moving assembly 4 and the second Z-axis moving assembly 5 are mounted side by side on the Y-axis moving assembly 3; the first electric spindle 6 and the second electric spindle 7 are respectively mounted on the first Z-axis moving assembly 4 and the second Z-axis moving assembly 5 and are located above the worktable 2, with the first electric spindle 6 positioned further forward than the second electric spindle 7, thus causing the first electric spindle 6 and the second electric spindle 7 to be staggered, i.e., the first electric spindle 6 is in front and the second electric spindle 7 is behind, facilitating the simultaneous processing of two products or two identical process parts of a product; the staggered tool magazine 8 is mounted on the gantry 12 and located below the first electric spindle 6 and the second electric spindle 7, and the staggered tool magazine 8 includes a tool magazine bracket 81 and a drive device 82. Multiple sets of first tool magazine assemblies 83 and multiple sets of second tool magazine assemblies 84 are provided. The drive device 82 is used to drive the tool magazine support 81 to move back and forth along the X-axis. The first tool magazine assemblies 83 and the second tool magazine assemblies 84 are alternately installed at the front of the tool magazine support 81, and the position of the first tool magazine assembly 83 is more forward than the position of the second tool magazine assembly 84. The first tool magazine assembly 83 and the second tool magazine assembly 84 correspond to the first electric spindle 6 and the second electric spindle 7, respectively. When the first electric spindle 6 and the second electric spindle 7 need to change tools, the drive device 82 drives the tool magazine support 81 to move the first tool magazine assembly 83 and the second tool magazine assembly 84 forward to below the first electric spindle 6 and the second electric spindle 7 for tool changing. After the tool changing is completed, the drive device 82 drives the tool magazine support 81 to move the first tool magazine assembly 83 and the second tool magazine assembly 84 backward to below the crossbeam of the gantry 12.

[0026] It should be noted that the Y-axis moving assembly 3, the first Z-axis moving assembly 4, and the second Z-axis moving assembly 5 are all composed of components such as ball screw pairs, drive motors, slide rails, sliders, and sliding seats. The main difference lies in the different installation directions of the ball screw pairs, slide rails, and sliders. Furthermore, the corresponding ball screw pairs and slide rails are not shown in the attached drawings for the Y-axis moving assembly 3. The structures of the Y-axis moving assembly 3, the first Z-axis moving assembly 4, and the second Z-axis moving assembly 5 are existing technologies in this field and will not be described in detail here.

[0027] Specifically, a forward support 9 is fixedly connected between the first electric spindle 6 and the first Z-axis moving assembly 4. Different sizes and specifications of forward support 9 can be selected as needed to adjust the offset distance of the first electric spindle 6 relative to the second electric spindle 7 in the front-back direction.

[0028] A mounting plate 10 is fixedly connected to the front of the tool magazine bracket 81. Multiple rectangular notches 101 are equidistantly arranged at the front end of the mounting plate 10 along the Y-axis direction, thereby forming alternating convex parts 20 and concave parts 30 at the front end of the mounting plate 10. The front-to-back offset distance between the convex parts 20 and the concave parts 30 is equal to the front-to-back offset distance between the first electric spindle 6 and the second electric spindle 7. The first tool magazine assembly 83 is mounted on the convex part 20, and the second tool magazine assembly 84 is mounted on the concave part 30, so that the front-to-back offset distance between the first tool magazine assembly 83 and the second tool magazine assembly 84 is equal to the front-to-back offset distance between the first electric spindle 6 and the second electric spindle 7.

[0029] An X-axis guide rail 40 is mounted on the tool magazine bracket 81 along the X-axis direction. The cross-section of the X-axis guide rail 40 is Ω-shaped. A mounting bracket 50 is fixedly connected to the bottom of the crossbeam of the gantry frame 12. Several X-axis sliders 60 that are slidably connected to the X-axis guide rail 40 are mounted on both sides of the bottom of the mounting bracket 50. The drive device 82 is a cylinder. The cylinder body of the drive device 82 is fixedly connected to the bottom of the mounting bracket 50, and the output rod of the drive device 82 is fixedly connected to the top of the tool magazine bracket 81 through a connecting seat.

[0030] A protective cover 70 is mounted on the mounting bracket 50. The protective cover 70 includes an integrally formed top plate 701, side plates 702, and rear baffle 703. The top plate 701 is located above the tool magazine bracket 81, the side plates 702 are located on both sides of the tool magazine bracket 81, and the rear baffle 703 is located behind the mounting plate 10. Furthermore, a protective door 80 is provided at the front end of the protective cover 70. The protective door 80 has an inverted L-shaped cross-section. An inverted L-shaped support rod 90 is fixedly connected to each side of the back of the protective door 80. One end of the support rod 90 is hinged to the front end of the top plate 701, and the other end of the support rod 90 is hinged to an arc-shaped connecting rod 100. Both ends of the support rod 90 can rotate around the hinge. The end of the connecting rod 100 away from the support rod 90 is hinged to the mounting plate 10, and both ends of the connecting rod 100 can rotate around the hinge. During tool changing, the output rod of the drive device 82 extends to drive the tool magazine bracket 81 and the mounting plate 10 to move forward. When the mounting plate 10 moves forward, it can push the support rod 90 through the connecting rod 100. The support rod 90 and the protective door 80 rotate upward around the hinge at the front end of the protective cover 70 and open. The mounting plate 10 and the first tool magazine assembly 83 and the second tool magazine assembly 84 on the mounting plate 10 move to below the first electric spindle 6 and the second electric spindle 7 for tool changing. Conversely, after the tool changing is completed, the output rod of the drive device 82 retracts to drive the tool magazine bracket 81 and the mounting plate 7 to move forward. The tool magazine bracket 81 and the mounting plate 10 move backward. When the mounting plate 10 moves backward, it can pull the support rod 90 through the connecting rod 100. The support rod 90 and the protective door 80 rotate downward around the hinge at the front end of the protective cover 70 and close. The mounting plate 10 and the first tool magazine assembly 83 and the second tool magazine assembly 84 on the mounting plate 10 are retracted into the protective cover 70. The protective cover 70 and the protective door 80 can protect the first tool magazine assembly 83, the second tool magazine assembly 84 and the tools, and isolate dust, iron filings, coolant and other impurities in the external environment.

[0031] Each first tool magazine assembly 83 and each second tool magazine assembly 84 includes several tool magazine chucks 200, and each tool magazine chuck 200 is provided with a U-shaped bayonet 210 for accommodating the tool holder 300.

[0032] The working principle of this utility model is as follows:

[0033] The aluminum product to be processed is placed on the worktable 2. The Y-axis moving assembly 3 drives the first Z-axis moving assembly 4 and the second Z-axis moving assembly 5 to move in the Y-axis direction, thereby adjusting the processing positions of the first electric spindle 6 and the second electric spindle 7 in the Y-axis direction. Similarly, the first Z-axis moving assembly 4 and the second Z-axis moving assembly 5 drive the first electric spindle 6 and the second electric spindle 7 to move in the Z-axis direction, thereby adjusting their processing positions and achieving processing of the aluminum product in the YZ-axis direction. Because the first electric spindle 6... The first electric spindle 6 and the second electric spindle 7 are staggered in front and behind each other, allowing the first electric spindle 6 and the second electric spindle 7 to work simultaneously. This facilitates the simultaneous processing of two products or two identical process parts in the front and rear areas of a product, greatly improving processing efficiency and making it suitable for processing large batches of aluminum products. In addition, the first tool magazine assembly 83 and the second tool magazine assembly 84 in the staggered tool magazine 8 are alternately installed at the front of the tool magazine bracket 81, with the first tool magazine assembly 83 positioned further forward than the second tool magazine assembly 84. This allows for simultaneous tool changing operations of the first electric spindle 6 and the second electric spindle 7 without interference.

[0034] It should be understood that all the above embodiments are exemplary and not restrictive. Any modifications, equivalent changes and alterations made by those skilled in the art to the specific embodiments described above under the concept of this utility model shall still fall within the scope of the technical solution of this utility model.

Claims

1. A staggered dual-spindle machine tool, comprising a frame, the frame including a base and a gantry mounted on the base, characterized in that: It also includes a worktable, a Y-axis moving assembly, a first Z-axis moving assembly, a second Z-axis moving assembly, a first electric spindle, a second electric spindle, and a staggered tool magazine; The workbench is mounted on the base; The Y-axis moving assembly is mounted on the gantry frame; The first Z-axis moving component and the second Z-axis moving component are mounted side by side on the Y-axis moving component; The first electric spindle and the second electric spindle are respectively mounted on the first Z-axis moving assembly and the second Z-axis moving assembly, and the position of the first electric spindle is forward of the position of the second electric spindle; The staggered tool magazine is mounted on the gantry and located below the first and second electric spindles. The staggered tool magazine includes a tool magazine support, a drive device, multiple sets of first tool magazine assemblies, and multiple sets of second tool magazine assemblies. The drive device is used to drive the tool magazine support to move back and forth along the X-axis. The first and second tool magazine assemblies are alternately mounted at the front of the tool magazine support, and the position of the first tool magazine assembly is further forward than the position of the second tool magazine assembly.

2. The offset twin-spindle machine tool according to claim 1, characterized in that: A forward support is fixedly connected between the first electric spindle and the first Z-axis moving assembly. The forward support is used to adjust the offset distance of the first electric spindle relative to the second electric spindle in the front-back direction.

3. The offset twin-spindle machine tool according to claim 1, characterized in that: The tool magazine bracket is fixedly connected to a mounting plate at the front. The front end of the mounting plate is provided with multiple rectangular notches at equal intervals along the Y-axis, so that the front end of the mounting plate forms alternating convex and concave parts. The front-to-back offset distance between the convex and concave parts is equal to the front-to-back offset distance between the first electric spindle and the second electric spindle. The first tool magazine assembly is mounted on the convex part, and the second tool magazine assembly is mounted on the concave part.

4. The offset twin-spindle machine tool according to claim 3, characterized in that: The tool magazine bracket is equipped with an X-axis guide rail along the X-axis direction; the bottom of the crossbeam of the gantry frame is fixedly connected to a mounting frame, and several X-axis sliders that are slidably connected to the X-axis guide rail are installed on both sides of the bottom of the mounting frame; the driving device is a cylinder, which is fixedly connected to the bottom of the mounting frame, and the output rod of the driving device is fixedly connected to the tool magazine bracket.

5. The offset twin-spindle machine tool according to claim 4, characterized in that: The mounting bracket is equipped with a protective cover, which includes an integrally formed top plate, side plates and rear baffle. The top plate is located above the tool magazine bracket, the side plates are located on both sides of the tool magazine bracket, and the rear baffle is located behind the mounting plate.

6. The offset twin-spindle machine tool according to claim 5, characterized in that: The protective cover has a protective door at the front end, and the protective door has an inverted L-shaped cross-section. An inverted L-shaped support rod is fixedly connected to each side of the back of the protective door. One end of the support rod is hinged to the front end of the top plate, and the other end of the support rod is hinged to an arc-shaped connecting rod. The end of the connecting rod away from the support rod is hinged to the mounting plate.

7. The offset twin-spindle machine tool according to claim 1, characterized in that: Each group of the first tool magazine assembly and each group of the second tool magazine assembly include a plurality of tool magazine latches, each of which is provided with a U-shaped latch for accommodating a tool holder.

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