Rotary table based on zero point positioning

Abstract

The utility model provides a rotary table based on zero point positioning, and relates to the technical field of rotary tables, the rotary table comprises a base table, a rotary table, zero point positioning discs and a processing table top, the top of the base table is rotatably connected with the rotary table, and the zero point positioning discs are symmetrically and fixedly mounted at the top of the rotary table; a machining table top is fixedly mounted at the top of the rotating table through a zero-point positioning disc, and a supporting mechanism is arranged at the top of the base table. The output end of the hydraulic cylinder pulls the cranked lever to rotate clockwise through the hinge seat, the cranked lever drives the supporting arm to rotate upwards through the rotating shaft, the cranked lever is used for supporting the machining table top upwards after the rotating table relieves locking of the machining table top, and after a new machining table top is placed on the supporting arm, the new machining table top is placed on the supporting arm. And the output end of the hydraulic cylinder pulls the curved bar to rotate anticlockwise through the hinge seat, and the curved bar drives the connecting seat to rotate downwards through the rotating shaft, so that a new machining table top falls on the top of the rotating table, and the auxiliary effect on mounting and dismounting of the machining table top is achieved.

Description

Technical Field

[0001] This utility model relates to the field of rotary table technology, and in particular to a rotary table based on zero-point positioning. Background Technology

[0002] In automated production, it is necessary to reduce the number of workpiece clamping and positioning operations to improve the machining accuracy and efficiency of parts. Aerospace parts are characterized by small batches and long single-clamping machining time. The application of zero-point positioning mechanisms has been increasing year by year, but most zero-point positioning mechanisms are used in tooling fixtures.

[0003] Zero-point positioning, also known as a zero-point positioning system or zero-point positioning fixture, is a unique positioning and locking device that keeps the zero point (i.e., the reference point or origin of the coordinate system) of a workpiece constant when moving it from one workstation to another, from one process to another, or from one machine tool to another. In machining tables that require constant equipment changes, the tables are typically made of steel to ensure good load-bearing capacity, resulting in a heavy table weight. This makes manual loading and unloading slow and affects workpiece processing efficiency. Therefore, this invention proposes a rotary table based on zero-point positioning to solve the above problems. Utility Model Content

[0004] To address the aforementioned issues, this invention proposes a rotary worktable based on zero-point positioning, which solves the problems of heavy processing table weight in existing technologies, slow loading and unloading speed due to manual movement, and impact on workpiece processing efficiency.

[0005] To achieve the purpose of this utility model, the utility model is implemented through the following technical solution: a rotary worktable based on zero-point positioning, including a base, a rotating table, a zero-point positioning disk and a processing table surface. The rotating table is rotatably connected to the top of the base, and the zero-point positioning disk is symmetrically fixedly installed on the top of the rotating table. The processing table surface is fixedly installed on the top of the rotating table through the zero-point positioning disk. A rotating mechanism is provided inside the base, and a support mechanism is provided on the top of the base.

[0006] A further improvement is made in that: the support mechanism includes a rotating shaft, a support arm, a connecting seat, a hydraulic cylinder, a hinge seat, and a crank rod. The rotating shaft is hinged to one side of the top of the base, and the two ends of the rotating shaft are symmetrically fixedly connected to the support arm. The connecting seat is fixedly connected to one side of the bottom of the base, and the hydraulic cylinder is hinged to one end of the connecting seat. The crank rod is fixedly connected to the outside of the rotating shaft, and the output end of the hydraulic cylinder is hinged to one end of the crank rod through the hinge seat.

[0007] A further improvement is that the curved rod is designed in an L-shape, and the inner side of the support arm is provided with an adjustment component, which is fitted and connected to the bottom of the processing table.

[0008] A further improvement is that the adjustment assembly includes a pin, a support plate, and a limiting rod. The support arm is internally hinged with a pin, one end of which is fixedly connected to the support plate, and the inner sides of the two support arms are fixedly connected to limiting rods.

[0009] A further improvement is that the zero-point positioning plate includes a center positioner, a nut, and a pressure plate. The bottom of the processing table is symmetrically provided with positioning pins that match the zero-point positioning plate, and the positioning pins are engaged with the interior of the zero-point positioning plate.

[0010] A further improvement is made in that: the rotating mechanism includes a motor, a worm gear, and a worm; the bottom of the base is rotatably connected to the worm gear, the top of the worm gear is fixedly connected to the bottom of the rotating platform; a worm is rotatably connected to one side inside the base, the worm meshes with the outer wall of the worm gear; a motor is fixedly installed on the outside of the base, and the output end of the motor is fixedly connected to one end of the worm.

[0011] A further improvement is that the motor has a protective shell on its outer side, and the outer side of the protective shell has an anti-collision strip, which is rectangular in shape.

[0012] The beneficial effects of this utility model are as follows: the output end of the hydraulic cylinder pulls the crank rod clockwise through the hinge seat, and the crank rod drives the support arm to rotate upward through the rotating shaft. After the rotating table releases the lock on the processing table, the processing table is lifted upward. After the new processing table is placed on the support arm, the output end of the hydraulic cylinder pulls the crank rod counterclockwise through the hinge seat, and the crank rod drives the connecting seat to rotate downward through the rotating shaft. This allows the new processing table to fall on the top of the rotating table, which plays an auxiliary role in the installation and disassembly of the processing table. This solves the problem in the prior art that the processing table is too heavy, and the loading and unloading speed is slow due to only being close to manual movement, which also affects the workpiece processing efficiency. Attached Figure Description

[0013] Figure 1 This is the main view of the utility model;

[0014] Figure 2 This is a diagram showing the support mechanism of this utility model in its ascending state.

[0015] Figure 3 This is a schematic diagram of the support arm structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the rotating mechanism structure of this utility model.

[0017] The components are: 1. Base; 2. Rotary table; 3. Zero-point positioning plate; 4. Machining table; 5. Rotary shaft; 6. Support arm; 7. Connecting seat; 8. Hydraulic cylinder; 9. Hinge seat; 10. Crank rod; 11. Pin shaft; 12. Support plate; 13. Limiting rod; 14. Motor; 15. Worm gear; 16. Worm. Detailed Implementation

[0018] 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.

[0019] according to Figure 1 , 2 As shown in Figures 3 and 4, this embodiment proposes a rotary worktable based on zero-point positioning, including a base 1, a rotating table 2, a zero-point positioning disk 3, and a processing table 4. The rotating table 2 is rotatably connected to the top of the base 1. The zero-point positioning disk 3 is symmetrically fixedly installed on the top of the rotating table 2. The processing table 4 is fixedly installed on the top of the rotating table 2 through the zero-point positioning disk 3. The base 1 has a rotating mechanism inside and a support mechanism on the top of the base 1. When the rotary worktable is in use, the rotating mechanism can drive the rotating table 2 to rotate. The processing table 4 is installed on the top of the rotating table 2 through the zero-point positioning disk 3 to adjust the angle of the rotating table 2. During the loading and unloading of the processing table 4, the support mechanism can drive the processing table 4 to move up and down to support the processing table 4, making it easier for people to load and unload the processing table 4.

[0020] The support mechanism includes a rotating shaft 5, a support arm 6, a connecting seat 7, a hydraulic cylinder 8, a hinge seat 9, and a crank rod 10. The rotating shaft 5 is hinged to one side of the top of the base 1. The support arms 6 are symmetrically fixed to both ends of the rotating shaft 5. The connecting seat 7 is fixedly connected to one side of the bottom of the base 1. The hydraulic cylinder 8 is hinged to one end of the connecting seat 7. The crank rod 10 is fixedly connected to the outer side of the rotating shaft 5. The output end of the hydraulic cylinder 8 is hinged to one end of the crank rod 10 via the hinge seat 9. The crank rod 10 has an L-shaped structure. An adjustment component is provided on the inner side of the support arm 6, and the adjustment component is attached to the bottom of the processing table 4. When the machining table 4 needs to be installed on the top of the rotating table 2, the output end of the hydraulic cylinder 8 pulls the crank 10 clockwise through the hinge seat 9. The crank 10 drives the support arm 6 to rotate upward through the rotating shaft 5. After the rotating table 2 releases the lock on the machining table 4, the machining table 4 is lifted upward. After the new machining table 4 is placed on the support arm 6, the output end of the hydraulic cylinder 8 pulls the crank 10 counterclockwise through the hinge seat 9. The crank 10 drives the connecting seat 7 to rotate downward through the rotating shaft 5. This allows the new machining table 4 to fall on the top of the rotating table 2, which plays an auxiliary role in the installation and removal of the machining table 4.

[0021] The adjustment assembly includes a pin 11, a support plate 12, and a limiting rod 13. The pin 11 is hinged inside the support arm 6, and the support plate 12 is fixedly connected to one end of the pin 11. The limiting rod 13 is fixedly connected to the inner sides of the two support arms 6. The processing table 4 is located inside the support arm 6 and is supported by the support plate 12. The processing table 4 can rotate around the pin 11 to adjust its position, so that the processing table 4 is always in a horizontal state. This ensures that the positioning pin at the bottom of the processing table 4 is parallel to the locking hole at the center of the zero-point positioning plate 3. The limiting rod can limit the rotation range of the processing table 4 to prevent the processing table 4 from falling off the support arm 6 due to excessive rotation angle.

[0022] The zero-point positioning disk 3 includes a center positioner, a nut, and a pressure plate. The bottom of the machining table 4 is symmetrically provided with positioning pins that match the zero-point positioning disk 3, and the positioning pins are engaged with the inside of the zero-point positioning disk 3. When the workpiece contacts the positioning reference surface of the machine tool, the center positioner of the zero-point positioning disk will fix the workpiece with positive pressure, so that it is tightly connected with the positioning system of the machine tool. The nut is used to control the braking torque to ensure that the workpiece remains stable during the positioning process. The pressure plate applies pressure to ensure that the workpiece is in close contact with the positioning reference surface, thereby achieving high-precision positioning.

[0023] The rotating mechanism includes a motor 14, a worm gear 15, and a worm 16. The worm gear 15 is rotatably connected to the bottom of the base 1, and the top of the worm gear 15 is fixedly connected to the bottom of the rotating table 2. The worm 16 is rotatably connected to one side inside the base 1, and the worm 16 meshes with the outer wall of the worm gear 15. The motor 14 is fixedly installed on the outside of the base 1, and the output end of the motor 14 is fixedly connected to one end of the worm 16. The motor 14 can drive the worm 16 to rotate inside the base 1. The worm 16 meshes with the worm gear 15, and the rotating table 2 is fixed to the worm gear 15 as one unit. The motor 14 can drive the rotating table 2 to rotate. The rotating table 2 is connected to the machining table 4 as one unit through a zero-point positioning disk 3, which is used to drive the machining table 4 to rotate and adjust the machining angle of the workpiece on the machining table 4.

[0024] The motor 14 is provided with a protective shell on its outer side, and an anti-collision strip is provided on the outer side of the protective shell. The anti-collision strip is rectangular in shape. The protective shell and the anti-collision strip separate the motor 14 from external objects, preventing external objects from directly contacting the motor 14 and thus protecting the motor 14.

[0025] This rotary table based on zero-point positioning has a hydraulic cylinder 8 whose output end pulls the crank 10 clockwise via the hinge seat 9. The crank 10 drives the support arm 6 to rotate upward via the rotating shaft 5. This is used to lift the machining table 4 upward after the rotary table 2 releases the lock on the machining table 4. After the new machining table 4 is placed on the support arm 6, the output end of the hydraulic cylinder 8 pulls the crank 10 counterclockwise via the hinge seat 9. The crank 10 drives the connecting seat 7 to rotate downward via the rotating shaft 5, so that the new machining table 4 falls on the top of the rotary table 2. This assists in the installation and removal of the machining table 4.

[0026] 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 rotary table based on zero-point positioning, comprising a base (1), a rotating table (2), a zero-point positioning disk (3), and a machining surface (4), characterized in that: The top of the base (1) is rotatably connected to a rotating platform (2), and a zero-point positioning disk (3) is symmetrically fixedly installed on the top of the rotating platform (2). A processing table (4) is fixedly installed on the top of the rotating platform (2) through the zero-point positioning disk (3). The base (1) is equipped with a rotating mechanism inside, and a support mechanism is provided on the top of the base (1). The support mechanism includes a rotating shaft (5), a support arm (6), a connecting seat (7), a hydraulic cylinder (8), a hinge seat (9), and a crank rod (10). The rotating shaft (5) is hinged to one side of the top of the base (1). The support arm (6) is symmetrically fixed to both ends of the rotating shaft (5). The connecting seat (7) is fixed to one side of the bottom of the base (1). The hydraulic cylinder (8) is hinged to one end of the connecting seat (7). The crank rod (10) is fixedly connected to the outside of the rotating shaft (5). The output end of the hydraulic cylinder (8) is hinged to one end of the crank rod (10) through the hinge seat (9).

2. A rotary table based on zero-point positioning according to claim 1, characterized in that: The crank (10) is designed in an L-shape, and the inner side of the support arm (6) is provided with an adjustment component, which is fitted and connected to the bottom of the processing table (4).

3. A rotary table based on zero-point positioning according to claim 2, characterized in that: The adjustment assembly includes a pin (11), a support plate (12), and a limiting rod (13). The support arm (6) is internally hinged with a pin (11), and one end of the pin (11) is fixedly connected to the support plate (12). The inner sides of the two support arms (6) are fixedly connected with limiting rods (13).

4. A rotary table based on zero-point positioning according to claim 1, characterized in that: The zero-point positioning plate (3) includes a center locator, a nut, and a pressure plate. The bottom of the processing table (4) is symmetrically provided with positioning pins that match the zero-point positioning plate (3), and the positioning pins are engaged with the interior of the zero-point positioning plate (3).

5. A rotary table based on zero-point positioning according to claim 1, characterized in that: The rotating mechanism includes a motor (14), a worm gear (15), and a worm (16). The bottom of the base (1) is rotatably connected to the worm gear (15), and the top of the worm gear (15) is fixedly connected to the bottom of the rotating platform (2). The worm (16) is rotatably connected to one side inside the base (1). The worm (16) meshes with the outer wall of the worm gear (15). The motor (14) is fixedly installed on the outer side of the base (1), and the output end of the motor (14) is fixedly connected to one end of the worm (16).

6. A rotary table based on zero-point positioning according to claim 5, characterized in that: The motor (14) is provided with a protective shell on the outside, and an anti-collision strip is provided on the outside of the protective shell. The anti-collision strip is rectangular in shape.

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