Double-ring numerical control tool magazine

Abstract

The utility model belongs to the technical field of numerical control tool magazines of machining centers, and particularly relates to a double-ring numerical control tool magazine, which comprises a base, a cutterhead and a servo motor, and is technically characterized in that a turntable bearing is arranged above the base, and an inner ring of the turntable bearing is fixedly connected with the upper surface of the base; the cutter head is located above an outer ring of the turntable bearing and fixedly connected with the outer ring, the center line of the cutter head coincides with the center line of the turntable bearing, a double-annular cutter claw structure is fixed to the outer edge of the cutter head, and a transmission structure is arranged between the outer ring of the turntable bearing and the servo motor. The tool magazine solves the problems that an existing tool magazine is small in capacity and low in tool changing efficiency, the capacity and the tool changing efficiency of the tool magazine are effectively improved, and meanwhile the tool magazine is provided with an efficient and stable driving structure.

Description

Technical Field

[0001] The utility model belongs to the technical field of CNC tool magazines in mechanical processing centers, and specifically relates to a double-annular CNC tool magazine, which is suitable for storing and accurately transporting more tools in the same space of a CNC processing center. Background Art

[0002] With the continuous development of my country's intelligent equipment manufacturing industry, the automation level of mechanical processing equipment is getting higher and higher, and CNC tool magazine has become an indispensable part of machining center equipment. The capacity and structure of CNC tool magazine are directly related to the processing efficiency, processability, reliability and price of machining equipment.

[0003] There are mainly three types of existing CNC tool magazines: disc-type tool magazines, bamboo-hat-type tool magazines and chain-type tool magazines. For example, CN214024707 U discloses a disc-type tool magazine and a CNC machine tool, wherein the disc-type tool magazine includes a tool disc, a mounting frame and a servo motor. The tool disc is arranged horizontally and rotates above the mounting frame. The mounting frame is cylindrical with a closed top and an open bottom. The servo motor is fixedly placed in the inner cavity of the mounting frame, and the output shaft of the servo motor passes through the top of the mounting frame upward and is coaxially connected to the tool disc. A plurality of tool claws for storing tools are installed on the periphery of the tool disc. The tool claws are arranged in a uniform annular array with the central axis of the tool disc as the reference axis. However, there are the following problems: 1. The small number of tool claws leads to a small capacity of the tool magazine, which affects the efficiency of tool change; 2. The servo motor is coaxially arranged with the tool disc, the driving force arm is small, and when driving a large-capacity and heavy tool disc, the connection between the output shaft of the servo motor and the tool disc is highly stressed and easily damaged. Utility Model Content

[0004] The purpose of the utility model is to provide a double-ring CNC tool magazine with a simple structure and reliable use, to solve the problems of small capacity and low tool changing efficiency of the existing tool magazine, to effectively improve the capacity and tool changing efficiency of the tool magazine, and at the same time to have an efficient and stable driving structure.

[0005] The technical solution of the utility model is:

[0006] A double-annular CNC tool magazine comprises a base, a tool disc and a servo motor, and its technical highlights are: a turntable bearing is provided above the base, the inner ring of the turntable bearing is fixedly connected to the upper surface of the base, the tool disc is located above the outer ring of the turntable bearing and is fixedly connected to the outer ring, the center line of the tool disc coincides with the center line of the turntable bearing, a double-annular tool claw structure is fixed on the outer edge of the tool disc, and a transmission structure is provided between the outer ring of the turntable bearing and the servo motor.

[0007] The above-mentioned double-annular CNC tool magazine, the double-annular knife claw structure includes a knife claw seat arranged on the edge of the upper surface of the knife disc, a radially extended support handle arranged on the outer peripheral surface of the knife disc, an inner knife claw connected to the knife claw seat, and an outer knife claw connected to the end of the radially extended support handle, each knife claw seat is evenly spaced around the center line of the knife disc, each radially extended support handle is evenly spaced around the center line of the knife disc and is staggered with the knife claw seat.

[0008] In the above-mentioned double-annular CNC tool magazine, a plurality of weight-reducing holes are arranged on the surface of the cutter disc, and each weight-reducing hole is evenly arranged around the center line of the cutter disc.

[0009] The above-mentioned double-annular CNC tool magazine, the transmission structure includes a toothed structure arranged on the outer peripheral wall of the turntable bearing, a reducer connected to the output end of the servo motor, and a pinion connected to the output end of the reducer, and the pinion and the toothed structure are meshed with each other.

[0010] In the above-mentioned double-annular CNC tool magazine, the height of the outer tool claw is lower than that of the inner tool claw, so as to facilitate the taking and placing of the tool.

[0011] In the above-mentioned double-annular CNC tool magazine, the servo motor is fixed in the base and arranged in the horizontal direction, the reducer is a right-angle reducer, the horizontal input end of the reducer is connected to the output end of the servo motor, and the vertical output end of the reducer is connected to the pinion.

[0012] The beneficial effects of the utility model are:

[0013] 1. The double-ring knife claw structure is fixed on the outer edge of the cutter disc, which effectively improves the capacity of the tool magazine and the tool changing efficiency, and solves the problem of small capacity and low tool changing efficiency of the existing tool magazine.

[0014] 2. It also has an efficient and stable driving structure, that is, changing the driving mode of the central drive, adding a turntable bearing, connecting between the base and the cutter disc, and driving the outer ring of the turntable bearing to achieve the purpose of driving the cutter disc, thereby increasing the driving force arm and saving energy. At the same time, it also reduces the difficulty of assembling the servo motor directly driven, and avoids damage to the connecting parts due to excessive working stress.

[0015] In summary, the utility model achieves the purpose of storing and accurately transporting more cutting tools in the same space of the CNC machining center through ingenious structural layout and stable driving mechanism, thereby meeting the requirements of mechanical processing equipment for tool magazine capacity, efficiency, precise positioning, stability and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 yes Figure 1 Enlarged view of part A in the middle;

[0018] Figure 3 It is a cross-sectional view of the utility model.

[0019] In the figure: 1. cutter disc, 2. weight reduction hole, 3. turntable bearing, 4. cutter claw seat, 5. inner cutter claw, 6. radially extended support handle, 7. outer cutter claw, 8. base, 9. first bolt pair, 10. second bolt pair, 11. servo motor, 12. reducer, 13. pinion, 14. tooth structure. DETAILED DESCRIPTION

[0020] The utility model is described in detail according to the accompanying drawings of the specification.

[0021] like Figure 1-Figure 3 As shown, the double-annular CNC tool magazine includes a base 8, a tool disc 1 and a servo motor 11.

[0022] Among them, a slewing bearing 3 is provided above the base 8, and the inner ring of the slewing bearing 3 is fixedly connected to the upper surface of the base 8 by multiple first bolt pairs 9. The cutter disc 1 is located above the outer ring of the slewing bearing 3 and is fixedly connected to the outer ring by multiple second bolt pairs 10. The center line of the cutter disc 1 coincides with the center line of the slewing bearing 3, and a transmission structure is provided between the outer ring of the slewing bearing 3 and the servo motor 11.

[0023] In this embodiment, the transmission structure includes a toothed structure 14 provided on the outer peripheral wall of the turntable bearing 3, a reducer 12 connected to the output end of the servo motor 11, and a pinion 13 connected to the output end of the reducer 12, wherein the pinion 13 is meshed with the toothed structure 14. The servo motor 11 is fixed in the base 8 and arranged in the horizontal direction, and the reducer 12 is a right-angle reducer, wherein the horizontal input end of the reducer 12 is connected to the output end of the servo motor 11, and the vertical output end of the reducer 12 is connected to the pinion 13.

[0024] A double-ring knife claw structure is fixed on the outer edge of the knife disc 1 to form a double-ring layout, thereby increasing the capacity of the knife magazine and enriching the processability.

[0025] In this embodiment, the double annular knife claw structure includes a knife claw seat 4 provided on the edge of the upper surface of the knife disc 1, a radially extended support handle 6 provided on the outer peripheral surface of the knife disc 1, an inner knife claw 5 connected to the knife claw seat 4, and an outer knife claw 7 connected to the end of the radially extended support handle 6. Each knife claw seat 4 is evenly spaced around the center line of the knife disc 1, and each radially extended support handle 6 is evenly spaced around the center line of the knife disc 1 and staggered with the knife claw seat 4. The height of the outer knife claw 7 is lower than that of the inner knife claw 5, so as to facilitate the removal and placement of the tool. The surface of the knife disc 1 is provided with a plurality of weight reduction holes 2, and each weight reduction hole 2 is evenly arranged around the center line of the knife disc 1.

[0026] Working principle:

[0027] The servo motor 11 is started, and the pinion 13 is driven to rotate through the reducer 12, thereby driving the outer ring of the turntable bearing 3 to rotate about its center line by toggling the toothed structure 14 meshing with it, and the outer ring of the turntable bearing 3 drives the cutter disc 1 to rotate synchronously. The pinion 13 drives the outer ring of the turntable bearing 3 to rotate, and the transmission is reliable and the positioning is accurate, and the tool can be accurately delivered to the predetermined position.

[0028] The above embodiments of the present invention are described in detail, but the above contents are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the present invention.

Claims

1. A double-ring CNC tool magazine, comprising a base, a tool disc and a servo motor, Features: A turntable bearing is provided above the base, the inner ring of the turntable bearing is fixedly connected to the upper surface of the base, the cutter disc is located above the outer ring of the turntable bearing and is fixedly connected to the outer ring, the center line of the cutter disc coincides with the center line of the turntable bearing, a double annular knife claw structure is fixed on the outer edge of the cutter disc, and a transmission structure is provided between the outer ring of the turntable bearing and the servo motor.

2. The double-ring CNC tool magazine according to claim 1, Features: The double-annular knife claw structure includes a knife claw seat arranged on the edge of the upper surface of the knife disc, a radially extended support handle arranged on the outer peripheral surface of the knife disc, an inner knife claw connected to the knife claw seat, and an outer knife claw connected to the end of the radially extended support handle. The knife claw seats are evenly spaced around the center line of the knife disc, and the radially extended support handles are evenly spaced around the center line of the knife disc and staggered with the knife claw seats.

3. The double-ring CNC tool magazine according to claim 1, Features: The surface of the cutter disc is provided with a plurality of weight-reducing holes, and the weight-reducing holes are evenly arranged around the center line of the cutter disc.

4. The double-ring CNC tool magazine according to claim 1, Features: The transmission structure comprises a toothed structure arranged on the outer peripheral wall of the turntable bearing, a reducer connected to the output end of the servo motor, and a pinion connected to the output end of the reducer, wherein the pinion and the toothed structure are meshed with each other.

5. The double-annular CNC tool magazine according to claim 2, Features: The height of the outer knife claw is lower than that of the inner knife claw, so as to facilitate taking and placing the knife.

6. The double-annular CNC tool magazine according to claim 4, Features: The servo motor is fixed in the base and arranged in the horizontal direction. The reducer is a right-angle reducer. The horizontal input end of the reducer is connected to the output end of the servo motor, and the vertical output end of the reducer is connected to the pinion.

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