Precise indexing rotary table for B shaft of vertical grinding machine

Abstract

The utility model relates to the technical field of machine tools, in particular to a precise indexing rotary table for a shaft B of a vertical grinding machine. The precise indexing rotary table is provided with a base, a driving unit is arranged on the base and connected with an RV speed reducer, the RV speed reducer is connected with the rotary table, a plurality of locking units are arranged between the rotary table and the base, and each locking unit comprises a cylinder body arranged on the base. A flaring type hinged pipe is arranged on the cylinder body, a piston rod is arranged in the cylinder body, a disc spring is arranged on the periphery of the piston rod, a T-shaped groove bolt is arranged on the piston rod, an annular T-shaped groove is formed in the rotary table, and the T-shaped groove bolt is arranged in the annular T-shaped groove. By arranging the RV speed reducer, it is ensured that the rotary table can accurately rotate to any needed angle, and the requirement of the vertical grinding machine for high-precision indexing is met; meanwhile, due to the use of the RV speed reducer, the processing and manufacturing difficulty and cost are reduced; and by arranging the locking unit, the safety and stability of the equipment are improved, and flexible rotation of the rotary table is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tools, in particular to a precision indexing turntable for a B-axis of a vertical grinder. Background Art

[0002] A turntable is a high-precision mechanical device primarily used to precisely adjust or locate the position or orientation of parts and equipment. It typically consists of a base, a rotating platform, a transmission, and a control system. The base provides stable support for the entire system, while the rotating platform carries the part or equipment being measured. Precision transmissions achieve high-precision rotational motion, while the control system receives commands, controls motor movement, and provides feedback on current position information for precise position adjustment and orientation control.

[0003] However, in the current field of turntable technology, there are two significant shortcomings that need to be addressed urgently: First, the accuracy of the turntable has always been a key factor restricting its performance improvement, especially in situations where high precision is required. After a long period of operation, the accuracy of the turntable gradually decreases, making it difficult to meet the strict requirements for position accuracy in precision machining, aerospace, testing and measurement, and other fields; second, the locking mechanism between the turntable and the base is prone to loosening, causing the workpiece to rotate slightly with the turntable. Summary of the Invention

[0004] To solve the above problems, the present application provides a precision indexing turntable for the B-axis of a vertical grinder, which is provided with a base, a drive unit is provided on the base, the drive unit is connected to the RV reducer provided on the base, the RV reducer is connected to the turntable through a connecting cover, and a plurality of locking units are provided between the turntable and the base, the locking unit includes a cylinder body provided on the base, a flared hinged tube is provided on the cylinder body, a piston rod is provided in the cylinder body, a disc spring is provided on the outer periphery of the piston rod, a T-slot bolt is provided on the piston rod, an annular T-slot is provided on the turntable, and the T-slot bolt is placed in the annular T-slot.

[0005] In one embodiment, the locking units are in units and are evenly distributed on the annular T-slot.

[0006] In one embodiment, the driving unit includes a support arranged on one side of the base, a driver is provided on the support, a first transmission wheel is provided at the output end of the driver, the first transmission wheel is connected to the second transmission wheel through a transmission belt, and the second transmission wheel is connected to the RV reducer through a reducer shaft.

[0007] In one embodiment, a turntable bearing is provided between the turntable and the base.

[0008] In one embodiment, a driver base plate is provided on the support, the driver is mounted on the driver base plate, and a conveyor belt cover is provided on the support.

[0009] In one embodiment, the driver is a servo motor.

[0010] In one embodiment, the connecting cover is connected to the turntable via a bolt assembly.

[0011] The beneficial effects of the present invention are:

[0012] The present application discloses a precision indexing turntable for the B-axis of a vertical grinder. When the turntable needs to be indexed, the drive unit generates power and transmits it to the RV reducer. After receiving the power, the RV reducer converts it into a low-speed, high-torque output to meet the indexing requirements of the turntable. Under the combined action of the drive unit and the RV reducer, the turntable begins to rotate and reaches a predetermined indexing position. When the turntable rotates to a specified angle, the drive unit stops working, and the hydraulic oil in the cylinder is released through the flared articulated tube. The disc spring pushes the piston rod to move, so that the T-slot bolt is in close contact with the annular T-slot, achieving locking between the turntable and the base. In the locked state, the turntable can no longer rotate relative to the base, achieving precise indexing and positioning. By setting up an RV reducer, the turntable can be accurately rotated to any required angle, meeting the vertical grinder's requirements for high-precision indexing. At the same time, the use of an RV reducer greatly reduces the difficulty and cost of processing and manufacturing compared to traditional worm gear transmissions. By setting up a locking unit, the T-slot bolt and the annular T-slot can be locked or separated, improving the safety and stability of the equipment and realizing flexible rotation of the turntable.

[0013] By setting the RV reducer and the turntable bearing to run in coordination, a large reduction ratio and high-precision transmission are achieved, so that the turntable can be accurately rotated to any angle relative to the base. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is the front view of the utility model;

[0016] Figure 3 for Figure 2 AA section view;

[0017] Figure 4 Schematic diagram of the locking unit structure;

[0018] Figure 5 for Figure 3 Partial diagram at point A;

[0019] Explanation of symbols in the figure:

[0020] 1. Base;

[0021] 2. Drive unit;

[0022] 21. Support; 211. Driver base plate; 212. Conveyor belt cover;

[0023] 22. Driver; 23. First transmission wheel; 24. Transmission belt; 25. Second transmission wheel; 26. Reducer shaft; 261. Reducer bearing; 262. Reducer bearing seat;

[0024] 3. RV reducer;

[0025] 4. Connecting cover;

[0026] 5. Turntable; 51. Turntable bearing;

[0027] 6. Locking unit; 61. Cylinder body; 62. Expanded hinged tube; 63. Piston rod; 64. Disc spring; 65. T-slot bolt; 66. Annular T-slot. DETAILED DESCRIPTION

[0028] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0029] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0030] like Figure 1-5 As shown, a precision indexing turntable for the B-axis of a vertical grinder is provided with a base 1, a drive unit 2 is provided on the base 1, the drive unit 2 is connected to the RV reducer 3 provided on the base 1, the RV reducer 3 is connected to the turntable 5 through a connecting cover 4, a plurality of locking units 6 are provided between the turntable 5 and the base 1, the locking unit 6 includes a cylinder body 61 provided on the base 1, a flared hinged tube 62 is provided on the cylinder body 61, a piston rod 63 is provided in the cylinder body 61, a disc spring 64 is provided on the outer periphery of the piston rod 63, a T-slot bolt 65 is provided on the piston rod 63, an annular T-slot 66 is provided on the turntable 5, and the T-slot bolt 65 is placed in the annular T-slot 66.

[0031] Specifically, before the device is started, the locking unit 6 is in a locked state, and the disc spring 64 provides a pre-tightening force for the piston rod 63, so that the T-slot bolt 65 is in close contact with the annular T-slot 66, ensuring that the turntable 5 and the base 1 are relatively fixed and cannot rotate freely. Before the turntable 5 needs to rotate, hydraulic oil is injected into the cylinder 61 through the flared hinged tube 62. The hydraulic oil acts on the piston rod 63, pushing the piston rod 63 to move, and the disc spring 64 is gradually compressed. The T-slot bolt 65 is driven by the piston rod 63 and separates from the annular T-slot 66. At this time, the turntable 5 can rotate relative to the base 1. When the turntable 5 needs to be indexed, the drive unit 2 receives the start signal and starts working, generating rotational power. The power generated by the drive unit 2 is transmitted to the RV reducer 3. After receiving the power, the RV reducer 3 converts it into a low-speed, high-torque output to meet the indexing requirements of the turntable 5. Under the joint action of the drive unit 2 and the RV reducer 3, the turntable 5 begins to rotate. Since the locking unit 6 has been released, the turntable 5 can freely rotate to the desired angle and reach the predetermined indexing position. When the turntable 5 rotates to the specified angle, the drive unit 2 stops working. At this time, the hydraulic oil in the cylinder 61 is released through the flared hinged tube 62, and the disc spring 64 pushes the piston rod 63 to move, so that the T-slot bolt 65 is in close contact with the annular T-slot 66, achieving locking between the turntable 5 and the base 1. In the locked state, the turntable 5 can no longer rotate relative to the base 1, achieving precise indexing and positioning. By providing the RV reducer 3, it is ensured that the turntable 5 can be accurately rotated to any desired angle, meeting the vertical grinder's requirements for high-precision indexing; at the same time, the use of the RV reducer 3 greatly reduces the difficulty and cost of processing and manufacturing compared to traditional worm gear transmissions; by providing the locking unit 6, the T-slot bolt 65 and the annular T-slot 66 can be locked or separated, improving the safety and stability of the equipment and achieving flexible rotation of the turntable 5.

[0032] like Figure 2 、 4 As shown, there are six locking units, which are evenly distributed on the annular T-slot 66 .

[0033] Specifically, the locking units 6 are evenly distributed on the annular T-slot 66, and can more evenly withstand the various forces and moments generated by the turntable 5 during the rotation process, thereby ensuring the stability and balance of the turntable 5 in the locked state. The evenly distributed locking units 6 help to improve the overall stability and processing accuracy of the equipment.

[0034] like Figure 3As shown, the drive unit 2 includes a support 21 arranged on one side of the base 1, a driver 22 is provided on the support 21, and a first transmission wheel 23 is provided at the output end of the driver 22. The first transmission wheel 23 is connected to the second transmission wheel 25 through a transmission belt 24, and the second transmission wheel 25 is connected to the RV reducer 3 through a reducer shaft 26.

[0035] Specifically, the driver 22 is a servo motor. When the turntable 5 needs to be driven to rotate, the driver 22 receives a start signal and starts working. The output end of the driver 22 starts to rotate, and the rotational power will be transmitted to the first transmission wheel 23 connected to it. The rotation of the first transmission wheel 23 is transmitted to the second transmission wheel 25 through the transmission belt 24. The rotational power received by the second transmission wheel 25 is transmitted to the RV reducer 3 through the reducer shaft 26. The power after deceleration and torque increase by the RV reducer 3 is finally transmitted to the turntable 5, realizing the conversion of the input rotational power into a low-speed and high-torque output.

[0036] like Figure 3 As shown, the reducer shaft 26 is mounted on the reducer bearing 261 , the reducer bearing 261 is mounted on the reducer bearing seat 262 , and the reducer bearing seat 262 is fixedly mounted on the base 1 .

[0037] Specifically, reducer shaft 26 is mounted on reducer bearing 261, which is connected to reducer bearing seat 262 via reducer bearing 261. Reducer bearing seat 262 provides stable support and positioning for reducer bearing 261. The rigid connection between reducer bearing seat 262 and base 1 ensures stable support for reducer shaft 26, reducing vibration and noise. The precision design of reducer bearing seat 262 and base 1 ensures accurate positioning of reducer shaft 261 during operation, improving transmission accuracy.

[0038] like Figure 3 As shown, a turntable bearing 51 is provided between the turntable 5 and the base 1 .

[0039] Specifically, the turntable bearing 51 ensures that the turntable 5 can maintain stability and reliability when rotating or bearing heavy loads. By setting the RV reducer to operate in coordination with the turntable bearing 51, a large reduction ratio and high-precision transmission are achieved, so that the turntable 5 can be accurately rotated to any angle relative to the base 1.

[0040] like Figure 3 As shown, a driver base plate 211 is provided on the support 21 , the driver 22 is installed on the driver base plate 211 , and a conveyor belt cover 212 is provided on the support 21 .

[0041] Specifically, the driver 22 is connected to the support 21 through the driver base plate 211. The driver base plate 211 provides a stable and reliable installation platform for the driver 22, ensuring the stability of the driver 22 during operation. The conveyor belt cover 212 is connected to the support 21 to form a closed space to protect the safety of various components and employees.

[0042] Compared with the prior art, the present invention has the following advantages:

[0043] The present application discloses a precision indexing turntable for the B-axis of a vertical grinder, comprising a base 1, a drive unit 2 disposed on the base 1, the drive unit 2 being connected to an RV reducer 3, the RV reducer 3 being connected to a turntable 5, and a plurality of locking units 6 disposed between the turntable 5 and the base 1. The locking units 6 include a cylinder 61 disposed on the base 1, a flared hinged tube 62 disposed on the cylinder 61, a piston rod 63 disposed within the cylinder 61, a disc spring 64 disposed on the outer periphery of the piston rod 63, a T-slot bolt 65 disposed on the piston rod 63, and an annular T-slot 66 disposed on the turntable 5. The T-slot bolt 65 is seated in the annular T-slot 66. When the turntable 5 needs to index, the drive unit 2 generates power and transmits it to the RV reducer 3. The RV reducer 3 converts the power into a low-speed, high-torque output to meet the indexing requirements of the turntable 5. Under the combined action of the drive unit 2 and the RV reducer 3, the turntable 5 begins to rotate and reaches a predetermined indexing position. When the turntable 5 rotates to the specified angle, the drive unit 2 stops working, and the hydraulic oil in the cylinder 61 is released through the flared hinged tube 62. The disc spring 64 pushes the piston rod 63 to move, so that the T-slot bolt 65 is in close contact with the annular T-slot 66, thereby achieving locking between the turntable 5 and the base 1. In the locked state, the turntable 5 can no longer rotate relative to the base 1, achieving precise indexing and positioning. By setting up the RV reducer 3, it is ensured that the turntable 5 can be accurately rotated to any desired angle, meeting the requirements of the vertical grinder for high-precision indexing; at the same time, the use of the RV reducer 3 greatly reduces the difficulty and cost of processing and manufacturing compared to traditional worm gear transmissions; by setting up the locking unit 6, the T-slot bolt 65 and the annular T-slot 66 can be locked or separated, improving the safety and stability of the equipment and achieving flexible rotation of the turntable 5.

[0044] By arranging the RV reducer to operate in coordination with the turntable bearing 51 , a large reduction ratio and high-precision transmission are achieved, so that the turntable 5 can accurately rotate at any angle relative to the base 1 .

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

[0046] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

Claims

1. A precision indexing turntable for the B-axis of a vertical grinding machine, comprising a base (1), a drive unit (2) disposed on the base (1), the drive unit (2) being connected to an RV reducer (3) disposed on the base (1), the RV reducer (3) being connected to a turntable (5) via a connecting cover (4), wherein: A plurality of locking units (6) are provided between the turntable (5) and the base (1), and the locking units (6) include a cylinder body (61) provided on the base (1), an expanded hinged tube (62) provided on the cylinder body (61), a piston rod (63) provided in the cylinder body (61), a disc spring (64) provided on the outer periphery of the piston rod (63), a T-slot bolt (65) provided on the piston rod (63), an annular T-slot (66) provided on the turntable (5), and the T-slot bolt (65) placed in the annular T-slot (66).

2. The precision indexing turntable for the B-axis of a vertical grinder according to claim 1, characterized in that: There are six locking units, which are evenly distributed on the annular T-shaped groove (66).

3. The precision indexing turntable for the B-axis of a vertical grinder according to claim 1, characterized in that: The drive unit (2) comprises a support (21) arranged on one side of the base (1); a driver (22) is arranged on the support (21); a first transmission wheel (23) is arranged at the output end of the driver (22); the first transmission wheel (23) is connected to a second transmission wheel (25) via a transmission belt (24); and the second transmission wheel (25) is connected to the RV reducer (3) via a reducer shaft (26).

4. The precision indexing turntable for the B-axis of a vertical grinder according to claim 1, characterized in that: A turntable bearing (51) is provided between the turntable (5) and the base (1).

5. The precision indexing turntable for the B-axis of a vertical grinder according to claim 3, characterized in that: A driver base plate (211) is provided on the support (21), the driver (22) is mounted on the driver base plate (211), and a conveyor belt cover (212) is provided on the support (21).

6. The precision indexing turntable for the B-axis of a vertical grinder according to claim 3, characterized in that: The driver (22) is a servo motor.

7. The precision indexing turntable for the B-axis of a vertical grinder according to claim 1, characterized in that: The connecting cover (4) is connected to the turntable (5) via a bolt assembly.

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