A precision rotary indexing mechanism

Abstract

The utility model discloses a kind of precision rotary indexing mechanism, belong to cutter head processing technical field, comprising: milling machine, workstation, index plate;The workstation is set above milling machine, and the first motor is set to one side below workstation, the threaded rod is installed in the first motor output end, the threaded rod passes through below workstation, and transmission part that cooperates with threaded rod is set below workstation, and the left and right movement of workstation is controlled by threaded rod transmission;The index plate is set on workstation, and gear is equipped with on the outer periphery of index plate, and the second motor is set to the outside of index plate, the second motor is installed on workstation, and transmission gear is set to the second motor output end, and gear cooperates, control index plate left and right movement, gear every rotation a tooth is index plate rotation 5 °The utility model can replace manual operation angle plate, and fast processing, accurate adjustment disc rotation, improve processing quality, realize automatic processing, improve cutter head processing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of tool disc machining technology, specifically to a precision rotary indexing mechanism. Background Technology

[0002] Disc-shaped cutterheads are commonly used in abrasive applications. The cutting edges of these cutterheads are typically radial, and controlling the angle of each edge during machining is crucial, as it affects the grinding effect. Currently, discs are generally machined manually using milling machines. However, due to staff shortages, a dedicated person must be assigned to mill the discs daily. Each milling cycle requires 72 manual adjustments, each time by 5°. Occasionally, the cutting edge may collide with the cutting edge, causing it to break and potentially injure workers, resulting in inconvenience. Utility Model Content

[0003] The purpose of this utility model is to provide a precision rotary indexing mechanism that solves the problems of staff shortage and potential injury to workers, thereby saving manpower and improving production efficiency.

[0004] Technical Solution: This utility model provides a precision rotary indexing mechanism, including: a milling machine, a worktable, and an indexing plate; a PLC control box is installed on the outside of the milling machine; the worktable is located above the milling machine, and a first motor is installed on one side below the worktable. A threaded rod is installed at the output end of the first motor, passing through the bottom of the worktable. A transmission component that cooperates with the threaded rod is installed below the worktable, and the left and right movement of the worktable is controlled by the transmission of the threaded rod; the indexing plate is located on the worktable, and a gear is provided on the outer circumference of the indexing plate. A second motor is installed on the outside of the indexing plate and is fixedly mounted on the worktable. A transmission gear is installed at the output end of the second motor and cooperates with the gear to control the left and right rotation of the indexing plate. Each rotation of one tooth of the gear corresponds to a 5° rotation of the indexing plate; the PLC control box sends control signals to control the forward and backward movement of the worktable and the rotation of the indexing plate. Each 5° rotation of the indexing plate is one cycle, and 72 cycles constitute one period. An alarm is issued when one cycle is completed.

[0005] Furthermore, in the aforementioned precision rotary indexing mechanism, a milling cutter drive device is located above the center of the milling machine, and a grinding blade is positioned below the milling cutter drive device.

[0006] Furthermore, in the aforementioned precision rotary indexing mechanism, a set of limit switches is provided on one side of the milling machine. The distance between the limit switches is equal to the distance the worktable moves from its initial position to the position to be processed below the worktable, and the left and right movement distance of the worktable is within the range of the limit switches.

[0007] Furthermore, in the aforementioned precision rotary indexing mechanism, a trigger is provided below the worktable, and the trigger is located between limit switches. During operation, if the trigger does not touch the left or right limit switch during the left and right movement of the worktable, the PLC control box will issue an alarm.

[0008] Furthermore, in the aforementioned precision rotary indexing mechanism, a circular cutter head is provided above the indexing plate and fixed by fixing bolts. During operation, the worktable is moved to send the circular cutter head to the processing position below the grinding blade, and the circular cutter head is milled 360° around by rotating the indexing plate left and right.

[0009] Furthermore, in the aforementioned precision rotary indexing mechanism, the PLC control box automatically issues an alarm to remind the operator after the indexing plate rotates 360°; it performs an inspection after each 5° rotation of the indexing plate, and issues an alarm if any problem is found; it automatically checks whether the milling cutter drive device is stuck or whether there is a collision during the machining process, and if any abnormality is found, it automatically retracts the cutter and issues an alarm.

[0010] Furthermore, in the aforementioned precision rotary indexing mechanism, a pneumatic lifting device is provided inside the worktable, which controls the lifting and positioning of the indexing plate.

[0011] As can be seen from the above technical solution, this utility model has the following beneficial effects: The precision rotary indexing mechanism described in this utility model has a simple structure and is easy to use. It replaces manual operation of the angle disc and enables rapid processing. The gear on the indexing disc is driven by a motor to control the rotation of the cutter disc itself. One tooth rotation of the gear corresponds to a 5° rotation. The disc rotation can be precisely adjusted to improve the processing quality. The PLC control box monitors the process and automatically issues an alarm and automatically retracts the cutter when processing is completed, the cutter disc is mispositioned, the milling cutter is jammed, or the cutter collides with the cutter, thus achieving automated processing and improving the processing efficiency of the cutter disc. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of a precision rotary indexing mechanism according to the present invention; Figure 2 This is a cross-sectional view of a precision rotary indexing mechanism according to the present invention.

[0013] In the diagram: 1. Milling machine; 2. Worktable; 3. Indexing plate; 5. PLC control box; 6. Circular cutter head; 4. Milling cutter drive device; 11. Limit switch; 21. First motor; 22. Threaded rod; 23. Trigger; 31. Gear; 32. Second motor; 41. Sharpening blade. Detailed Implementation

[0014] Example 1 like Figure 1-2The precision rotary indexing mechanism shown includes: a milling machine 1, a worktable 2, and an indexing plate 3; the worktable 2 is positioned above the milling machine 1, and a first motor 21 is positioned on one side below the worktable 2. A threaded rod 22 is installed at the output end of the first motor 21, passing through the bottom of the worktable 2. A transmission component that cooperates with the threaded rod 22 is positioned below the worktable 2, and the left and right movement of the worktable 2 is controlled by the transmission of the threaded rod 22; the indexing plate 3 is positioned on the worktable 2, and a gear 31 is provided on the outer periphery of the indexing plate 3. A second motor 32 is positioned on the outer side of the indexing plate 3 and is fixedly mounted on the worktable 2. A transmission gear is provided at the output end of the second motor 32, which cooperates with the gear 31 to control the left and right rotation of the indexing plate 3. Each rotation of one tooth of the gear 31 corresponds to a 5° rotation of the indexing plate 3; the PLC control box 5 sends control signals to control the forward and backward movement of the worktable 2 and the rotation of the indexing plate 3. Each 5° rotation of the indexing plate 3 is considered one cycle, and 72 cycles constitute one period. An alarm is issued when one cycle is completed. It replaces manual operation of the angle plate and enables rapid processing. The gear 31 on the indexing plate 3 is driven by a motor to control the rotation of the circular cutter head 6, which is precisely controlled and improves processing efficiency and quality.

[0015] In this embodiment, a milling cutter drive device 4 is located above the middle of the milling machine 1, and a grinding blade 41 is located below the milling cutter drive device 4.

[0016] In this embodiment, a circular cutter head 6 is provided above the indexing plate 3 and fixed by fixing bolts. During operation, the worktable 2 is moved to send the circular cutter head 6 to the processing position below the grinding blade 41. The circular cutter head 6 is then milled 360° around the indexing plate 3 by rotating it left and right.

[0017] In this embodiment, a pneumatic lifting device is provided inside the worktable 2. The pneumatic lifting device controls the lifting and positioning of the indexing plate 3. A pair of high-precision interlocking gear plates are provided inside the worktable 2. After interlocking, the worktable 2 is stable and can withstand the force of heavy processing. The pneumatic lifting device can lift the indexing plate 3 together with the heavy workpiece being processed. After pressing down, it can fasten the worktable 2. The high-precision interlocking gear plates are interlocked again according to the original center point for quick positioning, ensuring the stability of the worktable 2.

[0018] Example 2 Based on Example 1, in this example, as... Figure 2 The milling machine 1 is shown as a precision rotary indexing mechanism, with a PLC control box 5 installed on the outside. The PLC control box 5 is equipped with a servo control system. Each time machining is performed, the indexing plate 3 is automatically adjusted by 5°, the tool is automatically fed in and retracted, and an alarm is issued after machining is completed to remind the operator to check the circular cutter head 6 and manually adjust the tooth pitch for the next revolution. After adjustment, the next automatic cycle is started until 5 revolutions of automatic milling are completed.

[0019] In this embodiment, a set of limit switches 11 is provided on one side of the milling machine 1. The distance between the limit switches 11 is equal to the distance the worktable 2 moves from its initial position to the position to be processed below the worktable 2. The left and right movement distance of the worktable 2 is within the range of the limit switches 11. This ensures the consistency of the movement distance of the worktable 2 and improves the processing quality.

[0020] In this embodiment, a trigger 23 is provided below the workbench 2. The trigger 23 is located between the limit switches 11. During operation, when the trigger 23 does not touch the left or right limit switch 11 during the left and right movement of the workbench 2, the PLC control box 5 will issue an alarm.

[0021] In this embodiment, the PLC control box 5 automatically issues an alarm to remind the operator after the indexing plate 3 rotates 360°; it performs an inspection after each 5° rotation of the indexing plate 3, and issues an alarm if any problem is found; it automatically checks whether the milling cutter drive device 4 is jammed or whether there is a cutter collision during the machining process, and automatically retracts the cutter and issues an alarm if any abnormality is found. Monitoring through the PLC control box 5 automatically issues alarms and automatically retracts the cutter when machining is completed, the cutter head is mispositioned, the milling cutter jams, or a cutter collision occurs, thus achieving automated machining and improving the machining efficiency of the cutter head.

[0022] It should be noted that the above description is merely a technical solution of the utility model and not a limitation. Although the present utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of the utility model without departing from the scope of the present utility model, and all such modifications and substitutions should be covered within the scope of the claims of the present utility model.

Claims

1. A precision rotary indexing mechanism, characterized in that: include: A milling machine (1), wherein a PLC control box (5) is provided on the outside of the milling machine (1); A worktable (2) is set above the milling machine (1). A first motor (21) is set on one side below the worktable (2). A threaded rod (22) is installed at the output end of the first motor (21). The threaded rod (22) passes through the bottom of the worktable (2). A transmission component that cooperates with the threaded rod (22) is set below the worktable (2). The left and right movement of the worktable (2) is controlled by the transmission of the threaded rod (22). Indexing plate (3), the indexing plate (3) is set on the workbench (2), the outer periphery of the indexing plate (3) is provided with gear (31), the outer side of the indexing plate (3) is provided with a second motor (32), the second motor (32) is fixedly installed on the workbench (2), the output end of the second motor (32) is provided with a transmission gear that cooperates with the gear (31) to control the left and right rotation of the indexing plate (3), and the indexing plate (3) rotates 5° for every tooth the gear (31) rotates; The PLC control box (5) sends control signals to control the forward and backward movement of the workbench (2) and the rotation of the indexing plate (3). The indexing plate (3) rotates 5° once, and 72 actions constitute one cycle. An alarm is issued when one cycle is completed.

2. The precision rotary indexing mechanism according to claim 1, characterized in that: The milling machine (1) has a milling cutter drive device (4) in the middle and above, and a grinding blade (41) is provided below the milling cutter drive device (4).

3. The precision rotary indexing mechanism according to claim 1, characterized in that: A set of limit switches (11) is provided on one side of the milling machine (1). The distance between the limit switches (11) is equal to the distance from the initial position of the worktable (2) to the position to be processed below the worktable (2). The left and right movement distance of the worktable (2) is within the range of the limit switches (11).

4. The precision rotary indexing mechanism according to claim 3, characterized in that: A trigger (23) is provided below the workbench (2). The trigger (23) is located between the limit switches (11). When the trigger (23) does not touch the left or right limit switch (11) during the left and right movement of the workbench (2), the PLC control box (5) will issue an alarm.

5. A precision rotary indexing mechanism according to claim 1, characterized in that: A circular cutter head (6) is set above the indexing plate (3) and fixed by fixing bolts. During operation, the worktable (2) is moved to send the circular cutter head (6) to the processing position below the grinding blade (41). The circular cutter head (6) is milled 360° around by rotating the indexing plate (3) left and right.

6. The precision rotary indexing mechanism according to claim 1, characterized in that: The PLC control box (5) automatically issues an alarm to remind the operator after the indexing plate (3) rotates 360°; it checks after each 5° rotation of the indexing plate (3), and issues an alarm if there is a problem; it automatically checks whether the milling cutter drive device (4) is stuck or whether there is a collision during the machining process, and if there is an abnormality, it automatically retracts the cutter and issues an alarm.

7. The precision rotary indexing mechanism according to claim 1, characterized in that: The workbench (2) is equipped with a pneumatic lifting device, which controls the lifting and positioning of the indexing plate (3).

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