Adjustable placement platform for workpiece machining

Abstract

The application relates to an adjustable placing platform for workpiece machining and relates to the technical field of machining equipment, which comprises a base, a mounting seat and a turntable assembly, the mounting seat is arranged on the base through a horizontal sliding mechanism; the turntable assembly comprises a rotating shaft arm rotatably arranged on the mounting seat, a rotary driving element and at least two groups of interval-arranged turntable bodies. An installation hole is arranged on the rotating shaft arm corresponding to each turntable body, the turntable body is embedded in the installation hole, and a fine adjustment gap is formed between the outer circumferential surface of the turntable body and the inner wall of the installation hole; a plurality of adjustment elements passing through the rotating shaft arm and abutting on the rotating shaft arm are circumferentially arranged on the outer periphery of each turntable body. The application can independently and accurately fine tune each turntable body through the adjustment elements, realizes one-time accurate pre-alignment of the turntable body and a plurality of machining head axes, and ensures synchronous and accurate machining of all workstations through only horizontal sliding and rotation in subsequent batch machining, so that the efficiency, accuracy and stability of multi-workpiece machining are greatly improved.

Description

Technical Field

[0001] This application relates to the technical field of machining equipment, and in particular to an adjustable placement platform for workpiece machining. Background Technology

[0002] In the field of machining, to improve production efficiency, it is often necessary to set up multiple machining stations at intervals on the same platform to work with multiple machining heads to process multiple workpieces simultaneously. However, existing multi-station platforms of this type have a significant drawback: multiple machining stations are usually installed on the same base in fixed relative positions. Although the platform as a whole can be moved or leveled, it is not possible to independently fine-tune the precise positional relationship between each machining station.

[0003] This inherent limitation means that during installation and commissioning, even if the position of a single processing station is accurate, it is difficult to guarantee that all processing stations can be precisely aligned with their corresponding processing heads simultaneously and individually. Even a slight positional or angular deviation in one processing station can cause machining errors between workpieces during synchronous processing, leading to inconsistent product dimensions and a decreased yield rate. Furthermore, when processing requirements change or the equipment wears out from long-term operation, this fixed multi-station structure makes recalibration extremely difficult, often requiring extensive disassembly and adjustment of the entire platform, which is time-consuming and labor-intensive, severely impacting production flexibility and efficiency.

[0004] Therefore, there is an urgent need in this field for a placement platform that can independently and precisely adjust the relative positions of multiple workstations on a platform, so as to achieve rapid and accurate collaborative alignment of multiple workstations and multiple processing heads, and ensure the quality and efficiency of simultaneous processing of multiple workpieces. Utility Model Content

[0005] To address the problem that existing platforms cannot achieve stable multi-workpiece synchronous processing over a long period after a one-time precision calibration, this application provides an adjustable placement platform for workpiece processing.

[0006] This application provides an adjustable placement platform for workpiece processing, which adopts the following technical solution: An adjustable placement platform for workpiece processing includes a base, a mounting base, and a turntable assembly. The mounting base is mounted on the base via a horizontal sliding mechanism to allow for position adjustment in the XY directions. The turntable assembly is mounted on the mounting base and includes: A rotating arm, which is rotatably mounted on a mounting base; A rotary drive component, which is mounted on a mounting base and used to drive the rotating shaft arm to rotate; The rotary table body comprises at least two sets of rotary table bodies spaced axially along the rotating shaft arm. Each rotating shaft arm has a mounting hole corresponding to the position of each rotary table body. The rotary table body is fitted into the mounting hole, and a fine-tuning gap is formed between the outer circumferential surface of the rotary table body and the inner wall of the mounting hole. Multiple sets of adjusting members are arranged in a circumferential array on the outer circumference of each rotary table body. These adjusting members pass through the rotating shaft arm and abut against the rotary table body. By independently operating the adjusting members corresponding to different rotary table bodies, the position of each rotary table body in the horizontal plane can be independently fine-tuned using the fine-tuning gap, so that the axes of all rotary table bodies can be collinear with the axes of multiple corresponding processing heads.

[0007] By adopting the above technical solution, the horizontal sliding mechanism drives the mounting base to slide on the base, thereby achieving the positioning of the mounting base in the XY direction. Then, a drive component is selected to drive the rotating shaft arm to rotate to adjust the levelness. Finally, by independently operating multiple sets of adjusting components on the outer periphery of different turntable bodies, each turntable body is independently fine-tuned using fine-tuning gaps, causing its axis to produce a small displacement in the horizontal plane. Ultimately, position adjustment between multiple stations on a single platform is achieved, enabling all turntable bodies to be precisely aligned with multiple processing heads simultaneously, solving the alignment problem during synchronous processing of multiple workpieces, and significantly improving processing accuracy and efficiency.

[0008] Furthermore, the adjusting component is a set screw, and the rotating shaft arm has a threaded hole that matches the set screw. Screwing in the set screw can push the turntable body to move, thereby achieving fine adjustment of its position.

[0009] By adopting the above technical solution, the adjusting component is specifically defined as a set screw. By screwing in the set screw, its end directly pushes against the turntable body, and the turntable body is forced to move in a specific direction by using the fine adjustment gap, so as to achieve precise position correction.

[0010] Furthermore, an elastic reset element is provided within the fine-tuning gap, and the elastic reset element provides a preload force to the turntable body to bring it toward the center position of the mounting hole.

[0011] By adopting the above technical solution, an elastic reset element is added to the fine-tuning gap. When the set screw in a certain direction is loosened, the preload of the elastic element will automatically pull the turntable body back to the center position, which will cooperate with the thrust of the set screw to make the adjustment process smoother and more controllable, avoid the adjustment dead zone, improve the feel and accuracy of fine-tuning, and make the system state after adjustment more stable.

[0012] Furthermore, the horizontal sliding mechanism includes an X-axis slide rail placed on the base and a Y-axis slide rail slidably disposed on the X-axis slide rail, and the mounting base is slidably disposed on the Y-axis slide rail.

[0013] By adopting the above technical solution, the horizontal sliding mechanism is the core execution component for the normal position movement of the platform during batch processing. Through the combined movement of the X-axis slide rail and the Y-axis slide rail, the entire calibrated multi-station platform is moved to the processing position set by the program, thereby providing a stable and reliable movement and positioning function, which is the basic guarantee for the platform to realize automated and programmed batch production.

[0014] Furthermore, the X-axis slide rail and the Y-axis slide rail are driven by a servo motor or a manual drive device.

[0015] By adopting the above technical solutions, the driving method of the slide rail is clarified. It can be either an automated servo motor to achieve numerical control drive, or a manual drive device to meet the needs of low cost or specific working conditions.

[0016] Furthermore, a level is provided on the rotating arm, which is used to calibrate the horizontal reference of the rotating arm during the adjustment process.

[0017] By adopting the above technical solution, the level installed on the rotating arm provides the operator with visual level feedback, guides the rotary drive to accurately calibrate the level of the rotating arm, and ensures that all turntable bodies have a unified and accurate horizontal reference plane, effectively preventing the cumulative error caused by reference tilt.

[0018] Furthermore, each of the turntable bodies has four sets of adjustment components arranged in a cross shape on its outer circumference.

[0019] By adopting the above technical solution, the number of fine adjustment points of each turntable body is clearly defined as 4, and they are distributed in a cross shape. The four-point symmetrical distribution provides the most reasonable and efficient force system, which can cover the fine adjustment needs in all directions in the horizontal plane, ensuring that there are no dead angles in the adjustment process, and that the adjustment force is balanced and not prone to jamming.

[0020] Furthermore, the upper surface of the turntable body is provided with vacuum adsorption holes, which constitute a workpiece positioning fixture.

[0021] By adopting the above technical solution, vacuum adsorption holes are integrated on the upper surface of the turntable body, and the workpiece is directly adsorbed and fixed by negative pressure, which facilitates the quick and efficient clamping of the workpiece.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. Through independent fine-tuning of the positions of multiple turntable bodies during the debugging phase, one-time pre-alignment of all workstations with the corresponding machining head axes was achieved. In subsequent batch processing, only the overall movement and rotation of the platform need to be controlled to ensure that all workpieces arrive at the precise machining position synchronously, completely eliminating the time spent on repeated calibration of individual workstations and greatly improving production efficiency.

[0023] 2. After initial adjustment and locking, the adjusting components, together with the fine-tuning clearance, form a rigid and stable mechanical structure. This structure effectively resists vibration and other disturbances during long-term operation, maintaining the calibrated positioning accuracy without drift, thus ensuring the consistency and reliability of machining quality.

[0024] 3. By utilizing the fine-tuning gap between the turntable body and the mounting holes, and combining it with the adjusting components distributed in a circular array around its outer periphery, precise positional corrections can be made in any direction within the horizontal plane for each station. This design ensures extremely high coaxiality calibration accuracy during the commissioning phase, laying a precise foundation for subsequent mass production.

[0025] 4. The flexible reset element transforms the adjustment process from a one-way push to a two-way push-pull, making the adjustment smoother and more controllable. This makes the initial calibration operation faster and more accurate, further reducing the difficulty and time required for adjustment. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of an adjustable placement platform for workpiece processing according to Embodiment 1 of this application, wherein the base and horizontal sliding mechanism are not shown; Figure 2 yes Figure 1 Enlarged diagram of section A in the middle; Figure 3 This is a half-sectional structural diagram of the rotating arm and a set of turntable bodies of Embodiment 2 of this application.

[0027] Reference numerals: 1. Mounting base; 2. Turntable assembly; 3. Rotary shaft arm; 31. Mounting hole; 311. Fine adjustment clearance; 32. Level; 33. Threaded hole; 4. Rotation drive component; 5. Turntable body; 51. Vacuum adsorption hole; 6. Adjustment component; 7. Elastic reset element. Detailed Implementation

[0028] The following is in conjunction with the appendix Figures 1-3 This application will be described in further detail.

[0029] This application discloses an adjustable placement platform for workpiece processing.

[0030] Example 1 Reference Figure 1 An adjustable placement platform for workpiece machining, primarily used to support multiple workpieces in precision machining and to enable them to be simultaneously and precisely aligned with multiple machining heads.

[0031] Reference Figure 1The platform includes a base, a mounting base 1, and a turntable assembly 2. The base is a rigid cast iron or granite platform, providing a stable foundation for the entire system. The mounting base 1 is mounted on the base 1 via a horizontal sliding mechanism.

[0032] Reference Figure 1 A horizontal sliding mechanism is used to adjust the position of the mounting base 1 in the XY directions. Its specific structure includes an X-axis slide rail fixedly mounted on the base and a Y-axis slide rail slidably mounted on the X-axis slide rail. The mounting base 1 is slidably mounted on the Y-axis slide rail. By driving the movement in the X and Y axes respectively, the mounting base 1 can be moved to the target working area. In this embodiment, the X-axis and Y-axis slide rails are preferably driven by servo motors to achieve precise CNC positioning; of course, as an alternative, manual drive devices such as handwheels and lead screws can also be used. The horizontal sliding mechanism and base of this application are conventional structures (not shown in the figures).

[0033] Reference Figure 1 The turntable assembly 2 is mounted on the mounting base 1 and includes a rotating shaft arm 3, a rotary drive component 4, and a turntable body 5. The rotating shaft arm 3 is rotatably mounted on the mounting base 1 via a set of high-precision angular contact bearings, ensuring smooth rotation with minimal backlash. The rotary drive component 4 is preferably a combination of a servo motor and a reducer, which directly drives the rotating shaft arm 3 to rotate via a coupling, thereby adjusting the horizontal angle reference of the entire rotating shaft arm 3 and its load-bearing components. A level 32 is also mounted on the rotating shaft arm 3; in this embodiment, the level 32 is an electronic level 32 or a bubble level 32, used to visually calibrate the horizontal state of the rotating shaft arm 3 during initial setting and adjustment.

[0034] Reference Figure 1 and Figure 2 At least two sets of turntable bodies 5 are spaced apart along the axial direction of the rotating shaft arm 3. A circular mounting hole 31 is provided on the rotating shaft arm 3 corresponding to the position of each turntable body 5. The lower part of the turntable body 5 is a cylindrical structure and is fitted into the mounting hole 31. Crucially, a small gap, namely the fine-tuning gap 311, is maintained between the outer circumferential surface of the turntable body 5 and the inner wall of the mounting hole 31. The size of this fine-tuning gap 311 is precisely calculated; it provides the necessary space for subsequent fine-tuning of the turntable body 5 while ensuring the centering and stability of its initial position.

[0035] Reference Figure 1 and Figure 2 To achieve precise fine-tuning, each turntable body 5 has multiple sets of adjusting components 6 arranged in a circumferential array on its outer periphery. In this embodiment, the adjusting component 6 is a set screw. The rotating shaft arm 3 has a threaded hole 33 that mates with the set screw, and the axis of the threaded hole 33 points to the center of the mounting hole 31. In one preferred embodiment, the number of set screws arranged in a circumferential array on the outer periphery of each turntable body 5 is four, distributed in a cross shape.

[0036] Reference Figure 2 The upper surface of the turntable body 5 serves as the workpiece bearing surface, and vacuum adsorption holes 51 are provided on it to form a workpiece positioning fixture. By connecting an external vacuum pump or power supply, the workpiece can be firmly adsorbed, preventing it from shifting during processing.

[0037] Reference Figure 1 and Figure 2 The specific adjustment process is as follows: the servo motor of the horizontal sliding mechanism operates, driving the mounting base 1 to move along the X-axis and Y-axis slide rails, moving the entire turntable assembly 2 to the working position of the machining center; then, the rotary drive component 4 drives the rotating arm 3 to rotate until the level indicator 32 shows that the rotating arm 3 is in a precise horizontal state, thereby ensuring that the initial reference plane of all turntable bodies 5 is consistent; finally, the operator uses tools such as an Allen wrench to independently operate the set screws corresponding to different turntable bodies 5. Taking one turntable body 5 as an example, if it is necessary to make a slight adjustment to make its axis forward, first loosen the set screw in front to provide room, and then screw in the set screw in the rear. The end of the set screw will push against the turntable body 5, and the fine adjustment gap 311 will make it move forward slightly. Through this "loosening and tightening" cooperation, the position of the turntable body 5 in any direction in the horizontal plane can be precisely controlled, making its axis strictly collinear with the axis of the corresponding machining head above. Repeat this process, adjusting each turntable body 5 independently, until all turntable bodies 5 are precisely aligned with their respective processing heads.

[0038] The working principle of Embodiment 1 of this application is as follows: The mounting base 1 is driven to move in a wide range in the XY direction by the horizontal sliding mechanism of the base to achieve the initial positioning of the platform. Then, the rotating shaft arm 3 is rotated by the rotary drive component 4 and calibrated by the level 32 on it to establish a unified horizontal reference for all workstations. Finally, the operator screws in or out the set screws distributed in a cross shape on the outer circumference of a specific turntable body 5 and uses the fine adjustment gap 311 between the turntable body 5 and the mounting hole 31 to independently and precisely fine adjust the position of each turntable body 5 in the horizontal plane, so that the axes of multiple turntable bodies 5 on the platform can be precisely collinear with the axes of the corresponding multiple processing heads. This achieves high-precision positioning when multiple workpieces are processed simultaneously, which significantly improves the processing quality and efficiency. It is especially suitable for batch processing of precision parts and other scenarios, and effectively reduces the scrap rate caused by misalignment.

[0039] Example 2 Reference Figure 3 The difference between this embodiment and embodiment 1 is that an elastic reset element 7 is provided in the fine-tuning gap 311.

[0040] Reference Figure 3Specifically, the elastic reset element 7 can be an O-ring rubber ring fitted on the outer circumference of the turntable body 5, or it can be a plurality of miniature springs evenly distributed along the circumference. The elastic reset element 7 is pre-pressed between the turntable body 5 and the inner wall of the mounting hole 31, and its function is to continuously apply a pre-tightening force to the turntable body 5 to make it tend towards the center position of the mounting hole 31.

[0041] Reference Figure 3 Due to the presence of the elastic reset element 7, when a set screw is loosened, the preload automatically pulls the turntable body 5 back towards the center, making the adjustment process smoother and more controllable, achieving a "push-pull" bidirectional fine adjustment. This not only improves the efficiency and feel of the adjustment but also makes the system state more stable after fine-tuning.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An adjustable placement platform for workpiece processing, characterized in that: The system includes a base, a mounting base (1), and a turntable assembly (2). The mounting base (1) is mounted on the base via a horizontal sliding mechanism to allow for position adjustment of the mounting base (1) in the XY direction. The turntable assembly (2) is mounted on the mounting base (1) and includes: A rotating shaft arm (3) is rotatably mounted on a mounting base (1); A rotary drive (4) is mounted on a mounting base (1) and is used to drive the rotating shaft arm (3) to rotate. A turntable body (5), at least two sets of the turntable bodies (5) are arranged at axial intervals along the rotating shaft arm (3), and a mounting hole (31) is opened on the rotating shaft arm (3) corresponding to the position of each turntable body (5). The turntable body (5) is embedded in the mounting hole (31), and a fine adjustment gap (311) is formed between the outer circumferential surface of the turntable body (5) and the inner wall of the mounting hole (31). Multiple sets of adjusting members (6) are arranged in a circumferential array on the outer circumference of each turntable body (5). The adjusting members (6) pass through the rotating shaft arm (3) and abut against the turntable body (5). By independently operating the adjusting members (6) corresponding to different turntable bodies (5), the position of each turntable body (5) in the horizontal plane can be independently fine-tuned using the fine adjustment gap (311) so that the axis of all the turntable bodies (5) can be collinear with the axis of multiple corresponding processing heads respectively.

2. The adjustable placement platform for workpiece processing according to claim 1, characterized in that: The adjusting component (6) is a set screw, and the rotating shaft arm (3) is provided with a threaded hole (33) that matches the set screw. By screwing in the set screw, the rotating table body (5) can be pushed to move, thereby achieving fine adjustment of its position.

3. An adjustable placement platform for workpiece processing according to claim 2, characterized in that: An elastic reset element (7) is provided in the fine adjustment gap (311), and the elastic reset element (7) provides a preload force to the turntable body (5) to make it tend toward the center position of the mounting hole (31).

4. The adjustable placement platform for workpiece processing according to claim 1, characterized in that: The horizontal sliding mechanism includes an X-axis slide rail placed on the base and a Y-axis slide rail slidably disposed on the X-axis slide rail, and the mounting base (1) is slidably disposed on the Y-axis slide rail.

5. An adjustable placement platform for workpiece processing according to claim 4, characterized in that: The X-axis slide rail and Y-axis slide rail are driven by a servo motor or a manual drive device.

6. An adjustable placement platform for workpiece processing according to claim 1, characterized in that: A level (32) is provided on the rotating arm (3), which is used to calibrate the horizontal reference of the rotating arm (3) during the adjustment process.

7. An adjustable placement platform for workpiece processing according to claim 2, characterized in that: Each turntable body (5) has four sets of adjustment components (6) arranged in a cross shape on its outer circumference.

8. An adjustable placement platform for workpiece processing according to claim 1, characterized in that: The upper surface of the turntable body (5) is provided with vacuum adsorption holes (51), which constitute a workpiece positioning fixture.

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