Workpiece positioning auxiliary device for double-spindle equipment

Abstract

The utility model provides an auxiliary device for workpiece positioning of double-spindle equipment, which relates to the technical field of workpiece positioning and comprises a mounting seat, two groups of longitudinal beams, a lifting platform and a positioning fixture, the mounting seat and the double-spindle equipment are mounted on the two groups of longitudinal beams which are symmetrically connected onto a first bidirectional movement control mechanism, and a through groove is formed in the middle of each longitudinal beam. Electromagnetic rails are arranged on the longitudinal beams on the two sides of the through groove, the moving blocks are in sliding connection with the electromagnetic rails, a second two-way moving mechanism is arranged in the mounting support, and the first clamping plate and the second clamping plate are both connected with the second two-way moving mechanism; the through grooves in the two longitudinal beams can drive the two longitudinal beams to move relatively through the first bidirectional movement control mechanism to be aligned and centered with main shaft mounting grooves in double-main-shaft equipment, so that a workpiece clamped after the first clamping plate and the second clamping plate move relatively can be kept in center fit with a main shaft; the problem that the workpiece needs to be adjusted repeatedly to ensure that the center of the workpiece is matched with the center of the spindle is solved, and workpiece positioning efficiency can be greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of workpiece positioning technology, and in particular to a workpiece positioning auxiliary device for a dual-spindle equipment. Background Technology

[0002] Twin-spindle machining centers, especially in the field of CNC machining, are high-efficiency and high-precision processing equipment. The working principle of a twin-spindle machining center is to perform machining operations simultaneously or alternately using two spindles, thereby improving machining efficiency and accuracy.

[0003] In current technologies, when clamping and positioning workpieces in dual-spindle equipment, the two workpieces are mounted separately, and it is necessary to ensure that the clamping state of the two workpieces is identical. That is, after clamping, the center of the two workpieces needs to be aligned with the center of the two spindles of the dual-spindle equipment. However, manual positioning and clamping of workpieces cannot completely guarantee the identical clamping state at once, requiring continuous adjustments, which is very time-consuming and labor-intensive. Therefore, this utility model proposes a workpiece positioning auxiliary device for dual-spindle equipment to overcome the shortcomings of the existing technology. Utility Model Content

[0004] To address the aforementioned problems, the purpose of this utility model is to provide a workpiece positioning auxiliary device for a dual-spindle equipment. The through slots on the two longitudinal beams can be driven to move relative to each other by a first bidirectional movement control mechanism, thereby aligning and centering them with the spindle mounting slots on the dual-spindle equipment. Therefore, the workpiece held by the first and second clamping plates after relative movement can maintain a centered fit with the spindle, solving the problem of needing to adjust the workpiece multiple times to ensure that the workpiece center is aligned with the spindle center, and greatly improving the workpiece positioning efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A workpiece positioning auxiliary device for a dual-spindle machine includes a mounting base, longitudinal beams, a lifting platform, and a positioning fixture. The mounting base is installed on the dual-spindle machine. A first bidirectional movement control mechanism is provided inside the mounting base. Two sets of longitudinal beams are symmetrically connected to the first bidirectional movement control mechanism. A through groove is provided in the middle of the longitudinal beams. The width of the through groove is greater than the spindle diameter of the dual-spindle machine. Electromagnetic tracks are provided on the longitudinal beams on both sides of the through groove. Two lifting platforms are provided. Moving blocks are symmetrically provided on the rear side of each of the two lifting platforms. The moving blocks are slidably connected to the electromagnetic tracks. A mounting groove is provided on the lifting platform. A mounting bracket is provided in the mounting groove. A second bidirectional movement mechanism is provided inside the mounting bracket. The positioning fixture includes a first clamping plate and a second clamping plate. The first clamping plate and the second clamping plate are symmetrically arranged, and both the first clamping plate and the second clamping plate are connected to the second bidirectional movement mechanism.

[0007] A further improvement is that the mounting base has connecting plates on both the top and bottom, and the connecting plates have connecting holes. The connecting plates are installed with the dual-spindle equipment at the connecting holes by connecting bolts.

[0008] A further improvement is that the first bidirectional movement control mechanism includes a first drive motor, a first bidirectional lead screw, and a first guide rod. The first bidirectional lead screw is rotatably provided inside the mounting base, and the first guide rod is provided inside the mounting base below the first bidirectional lead screw. The first bidirectional lead screw is driven by the first drive motor. The upper end of the longitudinal beam is slidably connected to the first guide rod, and the upper end of the first guide rod is threadedly connected to the first bidirectional lead screw.

[0009] A further improvement is that the second bidirectional moving mechanism includes a second drive motor, a second bidirectional lead screw, and a second guide rod. The second bidirectional lead screw is rotatably provided inside the mounting bracket, and the second guide rod is provided inside the mounting bracket below the second bidirectional lead screw. The second bidirectional lead screw is driven by the second drive motor, and a connecting seat is symmetrically and slidably provided on the second guide rod. The upper end of the connecting seat is threadedly connected to the second bidirectional lead screw.

[0010] A further improvement is that: the bottom of the connecting seat is provided with a connecting groove, and the top of the first clamping plate and the second clamping plate are both provided with insert plates, which are adapted to the connecting groove for installation.

[0011] A further improvement is that: the front and rear side walls of the connecting seat at the connecting groove are provided with fixing holes, the fixing holes are provided with fixing bolts, and the insert plate is provided with locking holes that are compatible with the fixing bolts.

[0012] The beneficial effects of this utility model are as follows: The workpiece positioning mechanism of this utility model, through the relative movement of the first and second clamping plates driven by the second bidirectional moving mechanism, can clamp the workpiece. The clamped workpiece descends along the electromagnetic track with the lifting platform, allowing it to reach the clamping table and be limited. When the workpiece is positioned using the fixtures on the clamping table of the dual-spindle equipment after being limited, the positioning accuracy is improved. Furthermore, the through slots on the two longitudinal beams can be aligned with the spindle mounting slots on the dual-spindle equipment by the relative movement of the two longitudinal beams driven by the first bidirectional moving control mechanism. Therefore, the workpiece clamped by the relative movement of the first and second clamping plates can maintain a centered fit with the spindle, solving the problem of needing to adjust the workpiece multiple times to ensure the workpiece center matches the spindle center, thus greatly improving workpiece positioning efficiency. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;

[0014] Figure 2This is a partial perspective view of the mounting structure of the second bidirectional moving mechanism of this utility model;

[0015] Figure 3 This is a three-dimensional schematic diagram of the structure of the first bidirectional movement control mechanism of this utility model;

[0016] Figure 4 This is a three-dimensional schematic diagram of the assembly structure of the insert plate and the connector of this utility model;

[0017] Figure 5 This is a schematic diagram of the connecting groove structure of this utility model.

[0018] The components are as follows: 1. Mounting base; 2. Longitudinal beam; 3. Lifting platform; 4. Dual spindle device; 5. First bidirectional movement control mechanism; 501. First drive motor; 502. First bidirectional lead screw; 503. First guide rod; 6. Through slot; 7. Electromagnetic track; 8. Moving block; 9. Mounting bracket; 10. Second bidirectional movement mechanism; 1001. Second drive motor; 1002. Second bidirectional lead screw; 1003. Second guide rod; 1004. Connecting seat; 1005. Connecting slot; 11. First clamping plate; 12. Second clamping plate; 13. Connecting plate; 14. Connecting hole; 15. Insert plate; 16. Fixing bolt. Detailed Implementation

[0019] To deepen the understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model.

[0020] according to Figure 1-5 As shown, this embodiment proposes a workpiece positioning auxiliary device for a dual-spindle equipment, including a mounting base 1, longitudinal beams 2, lifting platforms 3, and positioning fixtures. The mounting base 1 is installed on the dual-spindle equipment 4. The mounting base 1 is provided with a first bidirectional movement control mechanism 5. The longitudinal beams 2 are provided in two sets, and the two sets of longitudinal beams 2 are symmetrically connected to the first bidirectional movement control mechanism 5. A through groove 6 is provided in the middle of the longitudinal beams 2. The width of the through groove 6 is greater than the spindle diameter of the dual-spindle equipment 4. Electromagnetic tracks 7 are provided on the longitudinal beams 2 on both sides of the through groove 6. There are two lifting platforms 3. The rear sides of the two lifting platforms 3 are symmetrically provided with moving blocks 8. The moving blocks 8 are slidably connected to the electromagnetic tracks 7. The lifting platform 3 is provided with a mounting groove. The mounting groove is provided with a mounting bracket 9. The mounting bracket 9 is provided with a second bidirectional movement mechanism 10. The positioning fixture includes a first clamping plate 11 and a second clamping plate 12. The first clamping plate 11 and the second clamping plate 12 are symmetrically arranged, and both the first clamping plate 11 and the second clamping plate 12 are connected to the second bidirectional movement mechanism 10.

[0021] The workpiece positioning mechanism of this utility model is installed on the dual-spindle equipment 4 via a mounting base 1. Specifically, the mounting base 1 is installed above the front of the dual-spindle equipment 4, ensuring that the centerline of the through groove 6 on the two longitudinal beams 2 is aligned with the center of the two spindles on the dual-spindle equipment. This ensures that the center of the workpiece is concentric with the center of the spindle after the first clamping plate 11 and the second clamping plate 12 connected to the second bidirectional moving mechanism 10 inside the mounting bracket 9 clamps the workpiece, thus ensuring clamping accuracy and avoiding multiple adjustments to the workpiece clamping state. After the first clamping plate 11 and the second clamping plate 12 clamp the workpiece, the lifting platform 3 is controlled to move up and down on the electromagnetic track 7, so that the bottom of the workpiece contacts the clamping platform of the dual-spindle equipment 4. Then, the workpiece is clamped by the fixtures on the clamping platform. At this time, the clamping of the first clamping plate 11 and the second clamping plate 12 on the workpiece is released, and then the lifting platform 3 is controlled to move upward on the electromagnetic track 7, clearing the processing area on the front of the dual-spindle equipment 4 and avoiding interference in subsequent processing.

[0022] The mounting base 1 has connecting plates 13 on both the top and bottom. Each connecting plate 13 has a connecting hole 14. The connecting plate 13 is installed to the dual-spindle device 4 through the connecting bolts in the connecting holes 14. The mounting base 1 is connected to the mounting hole on the upper front of the dual-spindle device 4 through the connecting bolts in the connecting holes 14.

[0023] The first bidirectional movement control mechanism 5 includes a first drive motor 501, a first bidirectional lead screw 502, and a first guide rod 503. The first bidirectional lead screw 502 is rotatably mounted inside the mounting base 1, and the first guide rod 503 is located inside the mounting base 1 below the first bidirectional lead screw 502. The first bidirectional lead screw 502 is driven by the first drive motor 501. The upper end of the longitudinal beam 2 is slidably connected to the first guide rod 503, and the upper end of the first guide rod 503 is threadedly connected to the first bidirectional lead screw 502. This invention connects the longitudinal beam 2 to the first bidirectional movement control mechanism 5, making the distance between the two longitudinal beams 2 adjustable. This allows the device to meet the workpiece clamping auxiliary operations of different dual-spindle equipment, offering high flexibility. When the first bidirectional movement control mechanism 5 is running, starting the first drive motor 501 drives the first bidirectional lead screw 502 to rotate, causing the two longitudinal beams 2 to move synchronously bidirectionally on the first bidirectional lead screw 502 and the first guide rod 503.

[0024] The second bidirectional moving mechanism 10 includes a second drive motor 1001, a second bidirectional lead screw 1002, and a second guide rod 1003. The second bidirectional lead screw 1002 is rotatably mounted inside the mounting bracket 9. The second guide rod 1003 is located inside the mounting bracket 9 below the second bidirectional lead screw 1002. The second bidirectional lead screw 1002 is driven by the second drive motor 1001. Connecting seats 1004 are symmetrically and slidably mounted on the second guide rod 1003, and the upper end of the connecting seats 1004 is threadedly connected to the second bidirectional lead screw 1002. The second bidirectional moving mechanism 10 is used to drive the first clamping plate 11 and the second clamping plate 12 to move relative to each other to clamp the workpiece to its upper end. Specifically, by starting the second drive motor 1001, the second bidirectional lead screw 1002 is rotated, causing the two connecting seats 1004 to move synchronously relative to each other on the second bidirectional lead screw 1002 and the second guide rod 1003. The first clamping plate 11 and the second clamping plate 12, connected to the connecting seats 1004, follow the movement of the connecting seats 1004.

[0025] The connecting seat 1004 has a connecting groove 1005 at its bottom, and the first clamping plate 11 and the second clamping plate 12 each have an insert plate 15 at their top. The insert plate 15 is fitted into the connecting groove 1005. The connecting seat 1004 at the connecting groove 1005 has fixing holes on its front and rear side walls, and fixing bolts 16 are installed in these fixing holes. The insert plate 15 has locking holes that fit the fixing bolts 16. This configuration allows for the replacement of different first clamping plates 11 and second clamping plates 12 with the connecting seat 1004 to clamp different types of workpieces.

[0026] This invention utilizes a dual-spindle equipment workpiece positioning mechanism to clamp the workpiece by moving the first clamping plate 11 and the second clamping plate 12 relative to each other, driven by the second bidirectional moving mechanism 10. The clamped workpiece descends along the electromagnetic track 7 with the lifting platform 3, reaching the clamping table and being positioned. The workpiece, after being positioned, is then positioned using fixtures on the dual-spindle equipment clamping table, improving positioning accuracy. Furthermore, the through slots 6 on the two longitudinal beams 2 are aligned with the spindle mounting slots on the dual-spindle equipment by moving the two longitudinal beams relative to each other via the first bidirectional moving control mechanism 5. Therefore, the workpiece clamped by the first clamping plate 11 and the second clamping plate 12 maintains a centered fit with the spindle, solving the problem of needing multiple adjustments to ensure the workpiece center matches the spindle center and significantly improving workpiece positioning efficiency.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A workpiece positioning auxiliary device for a dual-spindle machine, characterized in that: The device includes a mounting base (1), longitudinal beams (2), a lifting platform (3), and positioning fixtures. The mounting base (1) is installed on the dual-spindle device (4). The mounting base (1) is equipped with a first bidirectional movement control mechanism (5). The longitudinal beams (2) are provided in two sets, and the two sets of longitudinal beams (2) are symmetrically connected to the first bidirectional movement control mechanism (5). A through groove (6) is provided in the middle of the longitudinal beams (2). The width of the through groove (6) is greater than the spindle diameter of the dual-spindle device (4). Electromagnetic tracks (7) are provided on the longitudinal beams (2) on both sides of the through groove (6). The lifting platform (3) is equipped with... There are two, and each of the two lifting platforms (3) is symmetrically provided with a moving block (8) on its rear side. The moving block (8) is slidably connected to the electromagnetic track (7). The lifting platform (3) is provided with an installation groove. The installation groove is provided with an installation bracket (9). The installation bracket (9) is provided with a second bidirectional moving mechanism (10). The positioning fixture includes a first clamping plate (11) and a second clamping plate (12). The first clamping plate (11) and the second clamping plate (12) are symmetrically arranged, and both the first clamping plate (11) and the second clamping plate (12) are connected to the second bidirectional moving mechanism (10).

2. The workpiece positioning auxiliary device for a dual-spindle equipment according to claim 1, characterized in that: The mounting base (1) has a connecting plate (13) on the top and a connecting hole (14) on the bottom. The connecting plate (13) is installed with the dual spindle device (4) at the connecting hole (14) by connecting bolts.

3. The workpiece positioning auxiliary device for a dual-spindle machine according to claim 1, characterized in that: The first bidirectional movement control mechanism (5) includes a first drive motor (501), a first bidirectional lead screw (502) and a first guide rod (503). The first bidirectional lead screw (502) is rotatably provided inside the mounting base (1). The first guide rod (503) is provided inside the mounting base (1) below the first bidirectional lead screw (502). The first bidirectional lead screw (502) is driven by the first drive motor (501). The upper end of the longitudinal beam (2) is slidably connected to the first guide rod (503), and the upper end of the first guide rod (503) is threadedly connected to the first bidirectional lead screw (502).

4. The workpiece positioning auxiliary device for a dual-spindle machine according to claim 1, characterized in that: The second bidirectional moving mechanism (10) includes a second drive motor (1001), a second bidirectional lead screw (1002), and a second guide rod (1003). The second bidirectional lead screw (1002) is rotatably provided inside the mounting bracket (9). The second guide rod (1003) is provided inside the mounting bracket (9) below the second bidirectional lead screw (1002). The second bidirectional lead screw (1002) is driven by the second drive motor (1001). A connecting seat (1004) is symmetrically and slidably provided on the second guide rod (1003). The upper end of the connecting seat (1004) is threadedly connected to the second bidirectional lead screw (1002).

5. The workpiece positioning auxiliary device for a dual-spindle equipment according to claim 4, characterized in that: The bottom of the connector (1004) is provided with a connecting groove (1005), and the top of the first clamping plate (11) and the second clamping plate (12) are each provided with a plug plate (15), which is adapted to the connecting groove (1005).

6. The workpiece positioning auxiliary device for a dual-spindle equipment according to claim 5, characterized in that: The connecting seat (1004) at the connecting groove (1005) is provided with fixing holes on the front and rear side walls, and fixing bolts (16) are provided in the fixing holes. The insert plate (15) is provided with locking holes that are compatible with the fixing bolts (16).

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