A coaxial assembly multi-tool servo motor

Abstract

The utility model discloses a kind of servo motor of coaxial assembly multi-tool, including servo drive mechanism, coaxial multi-tool rest is equipped on the servo drive mechanism, and coaxial multi-tool rest is equipped with tool jig, the tool jig includes servo electric cylinder fixed on coaxial multi-tool rest, and the output end of servo electric cylinder is fixed with limit seat, and driving disc is covered on the limit seat;The servo drive mechanism includes the main shaft fixed on coaxial multi-tool rest, and the main shaft is equipped with auxiliary gear. The servo motor of coaxial assembly multi-tool, after tool clamping is completed, servo electric cylinder can directly drive tool to carry out axial movement, and axial movement distance is accurately controlled by servo controller, replace the mode of traditional manual adjustment axial position, effectively avoid the problem of time-consuming, precision limited of manual adjustment, from clamping to axial displacement whole process automation and precision controllable, finally guarantee the stability of machining precision.

Description

Technical Field

[0001] This utility model relates to the field of CNC machine tools, specifically a servo motor with multiple cutting tools coaxially assembled. Background Technology

[0002] Automatic tool changers are one of the key technologies in CNC machine tools for improving production efficiency, reducing auxiliary time, and enhancing machining flexibility. Traditional manual tool changing requires operators to interrupt their work between different machining processes to manually change the tools. This is not only time-consuming and labor-intensive, but also increases human error, limits production efficiency, and may pose operational risks. To address the aforementioned issues, a search revealed Chinese Patent CN222308144U, which discloses a tool changing device for a CNC machine tool. The device includes a tool disc rotatably mounted on a machining table, the tool disc having several tool-clamping slots; a tool-clamping assembly disposed on the tool-clamping slots, the tool-clamping assembly including two tool-clamping members, the two tool-clamping members being movably disposed on the tool-clamping slots, moving closer or further apart to clamp the tool; and an elastic member disposed on the tool disc, located in the tool-clamping slots, one end acting on the tool-clamping members to provide a force that brings the two tool-clamping members closer together. Optionally, the tool-clamping members have abutting inclined surfaces and further include: a first linear drive member disposed on the machining table; and an abutting block disposed at the moving end of the first linear drive member, the abutting block moving to abut against or release from the two abutting inclined surfaces. Optionally, it further includes: a first transmission gear, which is rotatably disposed on the machining table, and a second transmission gear, which is disposed on the cutter head and coaxial with the cutter head, and meshes with the first transmission gear.

[0003] Although the above-mentioned device can solve the problem of manual tool changing in the prior art, which is not only time-consuming and labor-intensive but also increases the risk of human error, in actual use, the axial position of the cutting tool needs to be manually adjusted, which is time-consuming and has limited accuracy, affecting the machining accuracy. Utility Model Content

[0004] The purpose of this invention is to provide a servo motor with multiple tools mounted on a coaxial axis to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, a servo motor for coaxial assembly of multiple tools is provided, including a servo drive mechanism. The servo drive mechanism is provided with a coaxial multi-tool holder, and a tool fixture is provided on the coaxial multi-tool holder. The tool fixture includes a servo electric cylinder fixed to the coaxial multi-tool holder, and a limit seat is fixed to the output end of the servo electric cylinder. A drive disk is covered on the limit seat. The servo drive mechanism includes a main spindle fixed to the coaxial multi-tool holder, and a secondary gear is provided on the main spindle. A main gear meshes with one side of the secondary gear.

[0006] Furthermore, the servo drive mechanism also includes a fixed frame and a dovetail base, and a drive motor is provided on the fixed frame, with the output shaft of the drive motor fixed to the main gear.

[0007] Furthermore, the dovetail seats are configured as multiple sets equidistantly distributed on the coaxial multi-tool holder, and the dovetail seats are slidably mounted on the limiting track, which is circular.

[0008] Furthermore, the coaxial multi-tool holder is hexagonal, and multiple sets of tool fixtures are equidistantly arranged on the coaxial multi-tool holder. The coaxial multi-tool holder also includes a clamping motor fixed on a limiting seat, and the output end of the clamping motor is connected to a drive disk. Multiple sets of limiting frames are equidistantly arranged on the outer side of the drive disk.

[0009] Furthermore, the limiting frame has a limiting strip inserted inside, and the limiting strip is ring-shaped. The bottom of the drive disk is provided with multiple sets of guide blocks, and the guide blocks are slidably disposed inside the guide seat. The guide seat and the limiting strip are disposed inside the coaxial multi-tool holder.

[0010] Furthermore, the drive disk has multiple sets of inclined interference ports at equal intervals, and interference columns are inserted inside the interference ports. The bottom of the interference columns is connected to a guide block, and the top of the interference columns is connected to a clamping seat.

[0011] Furthermore, the clamping seat is arc-shaped, and a clamping pad is provided on the inner wall of the clamping seat. Multiple sets of the clamping seats are driven synchronously through a drive disk, an interference port, and an interference column.

[0012] Furthermore, the drive disc is circular, and the limiting frame on the outer side of the drive disc is arc-shaped, with the limiting frame and the drive disc forming a concentric circle structure.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. This solution uses a servo electric cylinder to drive the limit seat and drive plate, which can drive three sets of clamping seats to move inward synchronously, realizing automatic tool clamping without manual operation, saving manpower and ensuring the consistency of clamping action; after the tool is clamped, the servo electric cylinder can directly drive the tool to move axially, and the axial movement distance is precisely controlled by the servo controller, replacing the traditional method of manually adjusting the axial position, effectively avoiding the problems of time-consuming and limited accuracy of manual adjustment. The entire process from clamping to axial displacement is automated and the accuracy is controllable, ultimately ensuring the stability of machining accuracy; 2. This solution uses a coaxial multi-tool holder in the shape of a regular hexagon with multiple sets of tool fixtures arranged at equal intervals. This can accommodate the simultaneous operation of multiple tools and has a neat layout with high space utilization. When the clamping motor drives the drive plate to rotate, the arc-shaped limit frame on the outer side of the drive plate cooperates with the annular limit strip, and the bottom guide block slides in the guide seat, which can ensure the stable coaxial rotation of the drive plate and avoid deviation affecting accuracy. The drive plate cooperates with the interference column through the inclined interference port, which can synchronously drive the movement of multiple sets of arc-shaped clamping seats to achieve synchronous clamping and fixing of the tools. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a bottom view of the structure of this utility model; Figure 3 This is a schematic diagram of the servo drive mechanism of this utility model. Figure 4 This is a schematic diagram of the coaxial multi-tool holder structure of this utility model; Figure 5 This is a schematic diagram of the structural limiting frame and its connection structure of this utility model; Figure 6 This is a schematic diagram of the structural clamping base and its connection structure of this utility model; Figure 7 This is a top view of the drive disk structure of this utility model; Figure 8 This is a bottom view of the drive disc of this utility model.

[0016] The following numbers are labeled in the diagram: 100, Servo drive mechanism; 11, Fixture; 12, Drive motor; 13, Main gear; 14, Secondary gear; 15, Spindle; 16, Dovetail seat; 17, Limiting rail; 200, Coaxial multi-tool holder; 300, Tool fixture; 30, Limiting seat; 301, Servo electric cylinder; 31, Clamping motor; 32, Guide seat; 33, Guide block; 34, Drive disk; 341, Interference port; 3411, Interference column; 342, Clamping seat; 343, Clamping pad; 35, Limiting frame; 36, Limiting strip. Detailed Implementation

[0017] Please see Figures 1-8 This utility model provides a servo motor for coaxial assembly of multiple tools, including a servo drive mechanism 100, a coaxial multi-tool holder 200 on the servo drive mechanism 100, and a tool fixture 300 on the coaxial multi-tool holder 200. The tool fixture 300 includes a servo electric cylinder 301 fixedly connected to the coaxial multi-tool holder 200, and a limit seat 30 is fixedly fixed at the output end of the servo electric cylinder 301. A drive disk 34 is covered on the limit seat 30. The servo drive mechanism 100 includes a main shaft 15 fixedly connected to the coaxial multi-tool holder 200, and a secondary gear 14 is provided on the main shaft 15. At the same time, a main gear 13 meshes with one side of the secondary gear 14.

[0018] In a preferred embodiment, the servo drive mechanism 100 further includes a fixed frame 11 and a dovetail seat 16, and a drive motor 12 is provided on the fixed frame 11, with the output shaft of the drive motor 12 fixed to the main gear 13.

[0019] The dovetail seats 16 are arranged in multiple groups equidistantly distributed on the coaxial multi-tool holder 200, and the dovetail seats 16 are slidably arranged on the limiting rail 17, which is circular.

[0020] Working principle: After the drive motor 12, which is fixed on the fixed frame 11 of the servo drive mechanism 100, is started, its output shaft drives the main gear 13 to rotate. The main gear 13 meshes with the secondary gear 14 on the main shaft 15, thereby driving the main shaft 15 to rotate. The coaxial multi-tool holder 200, which is fixed to the main shaft 15, rotates synchronously. During the rotation, multiple sets of dovetail seats 16, which are equidistantly distributed on the coaxial multi-tool holder 200, slide along the annular limit track 17 to ensure rotational stability and realize the switching of different tool fixtures 300 on the coaxial multi-tool holder 200. When the target tool fixture 300 arrives at the working position, the tool fixture 300, which is fixed on the coaxial multi-tool holder 200, is started by the servo electric cylinder 301. Its output end drives the fixed limit seat 30 and the drive disk 34 covering the limit seat 30 to move, thereby driving the tool on the limit seat 30 to complete the machining operation.

[0021] like Figures 1-3As shown: When the servo electric cylinder 301 is started, its output end drives the fixed limit seat 30 and the drive disk 34 covering the limit seat 30 to move. At this time, the three sets of clamping seats 342 move inward synchronously to complete the clamping of the tool. After the tool is clamped, it can be driven to move axially by the servo electric cylinder 301. The distance of the axial movement can be controlled by the servo controller. Its axial position does not need to be manually adjusted, avoiding time-consuming and precision-limited situations that affect the machining accuracy.

[0022] The servo electric cylinder 301 drives the limit seat 30 and the drive plate 34 to move, which in turn drives the three sets of clamping seats 342 to move inward synchronously, realizing automatic clamping of the tool without manual operation. This saves manpower and ensures the consistency of clamping action. After the tool is clamped, the servo electric cylinder 301 can directly drive the tool to move axially. The axial movement distance is precisely controlled by the servo controller, which replaces the traditional method of manually adjusting the axial position. This effectively avoids the problems of time-consuming and limited accuracy of manual adjustment. The entire process from clamping to axial displacement is automated and the accuracy is controllable, ultimately ensuring the stability of machining accuracy.

[0023] In a preferred embodiment, the coaxial multi-tool holder 200 is hexagonal, and multiple sets of tool fixtures 300 are equidistantly arranged on the coaxial multi-tool holder 200. The coaxial multi-tool holder 200 also includes a clamping motor 31 fixed on the limiting seat 30, and the output end of the clamping motor 31 is connected to the drive disk 34. Multiple sets of limiting frames 35 are equidistantly arranged on the outer side of the drive disk 34.

[0024] Limiting strips 36 are inserted inside the limiting frame 35 and are in the shape of a ring. Multiple sets of guide blocks 33 are provided at the bottom of the drive disk 34 and the guide blocks 33 are slidably disposed inside the guide seat 32. The guide seat 32 and the limiting strips 36 are disposed inside the coaxial multi-tool holder 200.

[0025] Multiple sets of inclined interference ports 341 are equidistantly provided on the drive disk 34, and interference pillars 3411 are inserted inside the interference ports 341. The bottom of the interference pillars 3411 is connected to the guide block 33, and the top of the interference pillars 3411 is connected to the clamping seat 342.

[0026] The clamping seat 342 is arc-shaped, and the inner wall of the clamping seat 342 is provided with a clamping pad 343. Multiple sets of clamping seats 342 are driven synchronously through the drive disk 34, the interference port 341 and the interference column 3411.

[0027] like Figures 5-7As shown: Multiple sets of inclined interference ports 341 equidistantly opened on the drive disk 34 cooperate with the interference pillars 3411 to convert the rotational motion of the drive disk 34 into synchronous radial movement of the interference pillars 3411, thereby driving multiple sets of arc-shaped clamping seats 342 to move synchronously, achieving uniform clamping of the tool and ensuring consistent clamping force; the clamping pads 343 on the inner wall of the clamping seats 342 can increase the friction with the tool, improve clamping stability, and avoid scratching the tool; the drive disk 34 is circular, and its outer arc-shaped limiting frame 35 is concentric with the drive disk 34, which can limit and guide the rotation of the drive disk 34, prevent its deviation, ensure the precise cooperation between the interference ports 341 and the interference pillars 3411, and further ensure the synchronicity and accuracy of the movement of the clamping seats 342. The overall structure is compact and efficient in transmission, effectively improving the reliability and ease of operation of tool clamping.

[0028] The drive plate 34 is circular, and the limiting frame 35 on the outer side of the drive plate 34 is arc-shaped. The limiting frame 35 and the drive plate 34 are concentric circles.

[0029] like Figures 5-8 As shown: The coaxial multi-tool holder 200 is designed as a regular hexagon with multiple sets of tool fixtures 300 arranged at equal intervals, which can adapt to the needs of multiple tools operating simultaneously and has a neat layout and high space utilization. When the clamping motor 31 drives the drive disk 34 to rotate, the arc-shaped limiting frame 35 on the outer side of the drive disk 34 cooperates with the annular limiting strip 36, and the bottom guide block 33 slides in the guide seat 32, which can ensure the stable coaxial rotation of the drive disk 34 and avoid deviation affecting accuracy. The drive disk 34 cooperates with the interference column 3411 through the inclined interference port 341, which can synchronously drive the action of multiple sets of arc-shaped clamping seats 342 to achieve synchronous clamping and fixing of tools. The clamping pad 343 on the inner wall of the clamping seat 342 can enhance the clamping stability and avoid damage to the tools. The overall structure design is reasonable, which not only improves the efficiency of multi-tool operation, but also ensures the accuracy and stability of tool clamping and operation.

[0030] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A servo motor for coaxial assembly of multiple cutting tools, comprising a servo drive mechanism (100), characterized in that: The servo drive mechanism (100) is provided with a coaxial multi-tool holder (200), and the coaxial multi-tool holder (200) is provided with a tool fixture (300). The tool fixture (300) includes a servo electric cylinder (301) fixed on the coaxial multi-tool holder (200), and the output end of the servo electric cylinder (301) is fixed with a limit seat (30). The limit seat (30) is covered with a drive disk (34). The servo drive mechanism (100) includes a spindle (15) fixed on the coaxial multi-tool holder (200), and a secondary gear (14) is provided on the spindle (15). At the same time, a main gear (13) meshes with one side of the secondary gear (14).

2. A servo motor with coaxial assembly of multiple tools according to claim 1, characterized in that: The servo drive mechanism (100) also includes a fixed frame (11) and a dovetail seat (16), and a drive motor (12) is provided on the fixed frame (11), and the output shaft of the drive motor (12) is fixed to the main gear (13).

3. A servo motor with coaxial assembly of multiple tools according to claim 2, characterized in that: The dovetail seat (16) is configured to be multiple sets equidistantly distributed on the coaxial multi-tool holder (200), and the dovetail seat (16) is slidably set on the limiting rail (17), which is circular.

4. A servo motor with coaxial assembly of multiple tools according to claim 1, characterized in that: The coaxial multi-tool holder (200) is hexagonal, and multiple sets of tool fixtures (300) are equidistantly arranged on the coaxial multi-tool holder (200). The coaxial multi-tool holder (200) also includes a clamping motor (31) fixed on the limiting seat (30), and the output end of the clamping motor (31) is connected to the drive disk (34). Multiple sets of limiting frames (35) are equidistantly arranged on the outer side of the drive disk (34).

5. A servo motor with coaxial assembly of multiple tools according to claim 4, characterized in that: The limiting frame (35) has a limiting strip (36) inserted inside, and the limiting strip (36) is annular. The bottom of the drive disk (34) is provided with multiple sets of guide blocks (33), and the guide blocks (33) are slidably disposed inside the guide seat (32). The guide seat (32) and the limiting strip (36) are disposed inside the coaxial multi-tool holder (200).

6. A servo motor with coaxial assembly of multiple tools according to claim 5, characterized in that: The drive disk (34) has multiple sets of inclined interference ports (341) at equal intervals, and interference columns (3411) are inserted inside the interference ports (341). The bottom of the interference column (3411) is connected to the guide block (33), and the top of the interference column (3411) is connected to the clamping seat (342).

7. A servo motor with coaxial assembly of multiple tools according to claim 6, characterized in that: The clamping seat (342) is arc-shaped, and the inner wall of the clamping seat (342) is provided with a clamping pad (343). Multiple sets of the clamping seats (342) are driven synchronously through the drive disk (34), the interference port (341) and the interference column (3411).

8. A servo motor with coaxial assembly of multiple tools according to claim 7, characterized in that: The drive disk (34) is circular, and the limiting frame (35) on the outside of the drive disk (34) is arc-shaped. The limiting frame (35) and the drive disk (34) are in a concentric circle structure.

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