Drilling and tapping tool magazine structure

Abstract

The utility model discloses a drilling and tapping tool magazine structure, which relates to the technical field of numerical control machine tool corollary equipment, and adopts the technical scheme that the drilling and tapping tool magazine structure comprises a mounting seat, a cutterhead arranged on the mounting seat and a driving component arranged between the mounting seat and the cutterhead and used for driving the cutterhead to rotate, the cutter head comprises a connecting disc and extension arms which are detachably connected with the connecting disc and extend in the radial direction, the multiple extension arms are arranged in an annular array mode in the circumferential direction of the connecting disc, a cutter mounting clamp is arranged at the end, away from the connecting disc, of each extension arm, and when the cutter mounting clamps rotate to a cutter changing position along with the connecting disc, the cutter mounting clamps are clamped in the cutter changing position. And the central axis of the clamping opening of the cutter mounting fixture is coaxial with the main shaft of the drilling and tapping machine. The utility model has the advantages of reduced volume and weight, reduced manufacturing cost, simplified operation process, reduced working efficiency and maintenance cost, small space occupancy rate and compact structure.

Description

TECHNICAL FIELD

[0001] The utility model relates to numerical control machine tool supporting equipment technical field, more specifically, it relates to a drill and tap tool magazine structure. BACKGROUND

[0002] Drill and tap machine is an advanced processing equipment, often used in the field such as manufacturing mechanical parts, automobile parts, aerospace components. Tool magazine is an important component of drill and tap machine, and its structural design and function realization are of great significance to improve processing efficiency and precision.

[0003] However, in the traditional tool magazine structure, the cutter head is usually set as an integral disc-shaped component, and the size is often set to be relatively large. A circular arc opening is arranged at the edge of the disc-shaped structure to adapt to the simultaneous installation of multiple tools. Although this method meets the operation requirements to some extent, it also brings some inconvenience, such as the large volume and weight of the disc-shaped structure, which increases the overall burden of the equipment and also increases the manufacturing cost. In addition, since the tools are directly installed on the disc-shaped component, when the tools need to be replaced or the tool layout needs to be adjusted, the entire cutter head often needs to be disassembled and replaced, which not only is cumbersome to operate, but also further increases the manufacturing cost.

[0004] Therefore, a new scheme is needed to solve this problem. UTILITY MODEL CONTENT

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a drill and tap tool magazine structure, which has the advantages of reduced volume and weight, reduced manufacturing cost, simplified operation process, reduced work efficiency and maintenance cost, small space occupancy rate and compact structure.

[0006] The above technical purpose of the utility model is realized by the following technical scheme: a drill and tap tool magazine structure for a drill and tap machine, the tool magazine structure comprising a mounting seat, a cutter head arranged on the mounting seat, and a driving assembly arranged between the mounting seat and the cutter head for driving the cutter head to rotate, the cutter head comprising a connecting disc and a plurality of extension arms arranged in an annular array along the circumferential direction of the connecting disc and detachably connected to the connecting disc, each of the extension arms being provided with a tool mounting clamp at an end thereof away from the connecting disc, and the center axis of the clamping opening of the tool mounting clamp being coaxial with the main shaft of the drill and tap machine when the tool mounting clamp rotates with the connecting disc to a tool changing position.

[0007] In one embodiment, a bowl-shaped structure is formed between the connecting disc and the plurality of extension arms, the opening of the bowl-shaped structure is arranged towards the main shaft of the drill and tap machine, a boss is arranged concentrically on the connecting disc, the boss is arranged at an end away from the opening of the bowl-shaped structure, a cavity is arranged in the boss and communicates with the opening of the bowl-shaped structure, and the cavity is used for accommodating the driving assembly.

[0008] In one of the embodiments, the driving assembly comprises a bracket, a driving motor fixed in the bracket, and a harmonic reducer fixed at one end of the bracket by a first bolt, the output shaft of the driving motor is connected with the input end of the harmonic reducer, the other end of the bracket is fixedly connected with the mounting base by a second bolt, and the output end of the harmonic reducer is connected with the boss by a third bolt.

[0009] In one of the embodiments, the bracket comprises a bottom plate, a top plate arranged oppositely, and a connecting rod arranged between the bottom plate and the top plate, one end of the connecting rod is fixedly connected with the bottom plate, the other end of the connecting rod is slidably connected with the top plate, and a threaded segment is arranged at the end of the connecting rod extending out of the top plate, a locking nut is threadedly connected on the threaded segment, when the locking nut is tightened, the driving motor is clamped between the bottom plate and the top plate, a fourth bolt is connected between the top plate and the driving motor, and a through hole is arranged on the top plate for the output shaft of the driving motor to extend out.

[0010] In one of the embodiments, the bottom plate and the top plate are both arranged in a disc shape.

[0011] In one of the embodiments, a clamping groove is arranged on the connecting disc, the extension arm is clamped in the clamping groove, and a fifth bolt is connected between the extension arm and the connecting disc.

[0012] In one of the embodiments, the tool mounting clamp comprises a clamping body fixed on the extension arm, and two clamping arms symmetrically arranged on both sides of the clamping body, the middle parts of the two clamping arms are respectively hinged with the clamping body by hinge shafts, an arc-shaped opening is arranged at the end of the clamping body away from the extension arm, two rollers are respectively rotatably connected at the ends of the two clamping arms close to the arc-shaped opening, and a spreading spring is arranged between the two clamping arms away from the arc-shaped opening.

[0013] In summary, this utility model has the following beneficial effects: By improving the traditional one-piece large disc-shaped cutter head structure to consist of a small connecting disc and multiple detachable extension arms, the volume and weight of the cutter magazine are effectively reduced. This not only lightens the overall burden on the drilling and tapping machine but also helps to reduce the manufacturing cost of the equipment. Furthermore, since the extension arms and connecting disc are detachably connected, when it is necessary to change tools or adjust the tool layout, it is not necessary to disassemble and replace the entire cutter head. It is only necessary to simply disassemble or reinstall specific extension arms and their tool mounting fixtures, which greatly simplifies the operation process, improves work efficiency, and reduces maintenance costs. At the same time, by constructing a bowl-shaped structure formed between the connecting disc and multiple extension arms, and cleverly utilizing the cavity in the boss to accommodate the drive component, the overall layout of the cutter magazine is optimized, space occupation is reduced, and the compactness and integration of the structure are improved. Moreover, the drive component adopts a drive motor and harmonic reducer, making the entire transmission path more compact and having better transmission stability, which is conducive to improving the positioning accuracy of the cutter magazine. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the drill and tap tool magazine structure according to an embodiment of this application. Figure One ;

[0015] Figure 2 This is a schematic diagram of the drill and tap tool magazine structure according to an embodiment of this application. Figure Two ;

[0016] Figure 3 This is a schematic diagram of the drive component in the drill and tap tool magazine structure of an embodiment of this application. Figure One ;

[0017] Figure 4 This is a schematic diagram of the drive component in the drill and tap tool magazine structure of an embodiment of this application. Figure Two ;

[0018] Figure 5 for Figure 1 Enlarged view of part A in the image.

[0019] In the diagram: 1. Mounting base; 2. Connecting plate; 21. Boss; 3. Extension arm; 4. Tool mounting fixture; 41. Fixture body; 42. Clamping arm; 43. Roller; 44. Spreading spring; 5. Base plate; 6. Top plate; 7. Connecting rod; 8. Drive motor; 9. Harmonic reducer; 10. First bolt; 11. Second bolt; 12. Locking nut; 13. Third bolt; 14. Fourth bolt; 15. Fifth bolt; 16. Frame; 17. Tension spring; 18. Connecting base. Detailed Implementation

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] As shown in Figure 1 and Figure 2 The embodiment of the application provides a drill bit magazine structure for a drill bit machine, the drill bit machine comprising a spindle holder and a spindle arranged on the spindle holder. The drill bit magazine structure comprises a mounting seat 1, a tool disc arranged on the mounting seat 1, and a driving assembly arranged between the mounting seat 1 and the tool disc for driving the tool disc to rotate. The tool disc comprises a connecting disc 2 and a plurality of extension arms 3 arranged in an annular array along the circumferential direction of the connecting disc 2 and detachably connected with the connecting disc 2. Each of the extension arms 3 is provided with a tool mounting clamp 4 at an end thereof away from the connecting disc 2. When the tool mounting clamp 4 rotates with the connecting disc 2 to a tool changing position, the central axis of the clamping opening of the tool mounting clamp 4 is coaxial with the spindle of the drill bit machine. The tool changing position is a position directly below the spindle. The drill bit magazine structure further comprises the following components of the prior art: specifically, a frame-shaped holder 16 fixedly sleeved on the spindle holder and a connecting seat 18 fixed on the frame-shaped holder 16. The mounting seat 1 is hingedly connected with the connecting seat 18. A tension spring 17 is further arranged between the mounting seat 1 and the frame-shaped holder 16 for driving the tool disc to move towards the spindle. A driving member is further arranged between the mounting seat 1 and the frame-shaped holder 16 for overcoming the tension of the tension spring 17 and making the tool disc move away from the spindle. In addition, the encoder inside the tool disc and the brake assembly for braking the tool disc are all of the prior art, and will not be described herein again.

[0022] Specifically, a bowl-shaped structure is formed between the connecting disc 2 and the plurality of extension arms 3. The opening of the bowl-shaped structure is arranged towards the spindle of the drill bit machine. A boss 21 is concentrically arranged on the connecting disc 2 and is arranged at an end away from the opening of the bowl-shaped structure. A cavity is arranged in the boss 21 and is in communication with the opening of the bowl-shaped structure. The cavity is used for accommodating the driving assembly.

[0023] When the drill bit magazine structure is in operation, the driving assembly on the mounting seat 1 drives the connecting disc 2 and the plurality of extension arms 3 arranged in an annular array thereon to rotate. Each of the extension arms 3 is provided with a tool mounting clamp 4 at the end thereof. When the tool mounting clamp 4 rotates with the connecting disc 2 to a tool changing position, the central axis of the clamping opening of the tool mounting clamp 4 is coaxial with the spindle, thereby facilitating tool changing. The specific tool changing mode is not within the protection scope of the utility model, and the prior art is adopted, and will not be described herein again.

[0024] The above-mentioned mode effectively reduces the volume and weight of the tool magazine by improving the traditional integrated large-disk tool magazine structure into a small-size connecting disk 2 and a plurality of detachable extension arms 3, which not only reduces the overall burden of the drilling and tapping machine, but also helps to reduce the manufacturing cost of the equipment. Since the extension arm 3 and the connecting disk 2 are detachably connected, when the tool needs to be replaced or the tool layout needs to be adjusted, the entire tool magazine does not need to be disassembled and replaced. Only the specific extension arm 3 and the tool mounting clamp 4 thereon need to be simply disassembled or reassembled, greatly simplifying the operation process, improving the work efficiency, and reducing the maintenance cost. At the same time, by constructing the bowl-shaped structure formed between the connecting disk 2 and the plurality of extension arms 3, and ingeniously utilizing the cavity in the boss 21 to accommodate the driving assembly, the overall layout of the tool magazine is optimized, the space occupation is reduced, and the compactness and integration of the structure are improved.

[0025] In the embodiment, as shown in Figure 3 and Figure 4 , the driving assembly includes a bracket, a driving motor 8 fixed in the bracket, and a harmonic reducer 9 fixed at one end of the bracket by a first bolt 10. Specifically, the harmonic reducer 9 is provided with a connecting flange plate, the connecting flange plate is provided with a first connecting hole, one end of the bracket is provided with a first threaded hole, and the first bolt 10 is threadedly connected with the first threaded hole after passing through the first connecting hole. The output shaft of the driving motor 8 is connected with the input end of the harmonic reducer 9. The other end of the bracket is fixedly connected with the mounting seat 1 by a second bolt 11. Specifically, the other end of the bracket is provided with a second threaded hole, the mounting seat 1 is provided with a second connecting hole, and the second bolt 11 is threadedly connected with the second threaded hole after passing through the second connecting hole. The output end of the harmonic reducer 9 is connected with the boss 21 by a third bolt 13. Specifically, the output end of the harmonic reducer 9 is provided with a third threaded hole, the end face of the boss 21 is provided with a third connecting hole, and the third bolt 13 is threadedly connected with the third threaded hole after passing through the third connecting hole.

[0026] In the above arrangement, the tool magazine can be disassembled as a whole by loosening the second bolt 11, and then the corresponding components can be disassembled by loosening the third bolt 13 and the first bolt 10. Alternatively, the second bolt 11 can not be loosened, and the corresponding components can be disassembled by directly loosening the third bolt 13 and the first bolt 10. Therefore, the user can choose to loosen different combinations of bolts, which can realize the overall disassembly for maintenance or replacement, or can individually disassemble the connection between the harmonic reducer 9 and the boss 21 or the connection between the harmonic reducer 9 and the bracket without disturbing the fixing of the mounting seat 1. This diversified disassembly greatly improves the work efficiency and the flexibility of operation. The driving assembly adopts the driving motor 8 and the harmonic reducer 9, which makes the entire transmission path more compact and stable, and is beneficial to improve the positioning accuracy of the tool magazine.

[0027] In this embodiment, the support includes the oppositely arranged bottom plate 5, top plate 6 and connecting rod 7 arranged between the bottom plate 5 and the top plate 6, one end of the connecting rod 7 is fixedly connected with the bottom plate 5, the other end of the connecting rod 7 is slidably connected with the top plate 6, and a threaded section is arranged at the end of the connecting rod 7 extending out of the top plate 6, a lock nut 12 is threadedly connected on the threaded section, when the lock nut 12 is tightened, the driving motor 8 is clamped between the bottom plate 5 and the top plate 6, the fourth bolt 14 is connected between the top plate 6 and the driving motor 8, and a through hole is arranged on the top plate 6 for the output shaft of the driving motor 8 to extend out.

[0028] In the above manner, the lock nut 12, the bottom plate 5, the top plate 6 and the connecting rod 7 are used to achieve stable clamping of driving motors 8 of different lengths, and the fourth bolt 14 is arranged to further enhance the stability of the connection between the driving motor 8 and the support.

[0029] In this embodiment, the bottom plate 5 and the top plate 6 are both arranged in a disc shape, the disc shape design facilitates alignment and assembly with the connecting rod 7 and other components, and improves the compactness of the overall structure.

[0030] In this embodiment, as shown in Figure 5 The connecting disc 2 is provided with a clamping groove, the extension arm 3 is clamped in the clamping groove, the fifth bolt 15 is connected between the extension arm 3 and the connecting disc 2, specifically, the fifth connecting hole is arranged on the extension arm 3, the fifth threaded hole is arranged on the connecting disc 2, and the fifth bolt 15 is threadedly connected with the fifth threaded hole after passing through the fifth connecting hole.

[0031] In this embodiment, the tool mounting clamp 4 includes the clamping body 41 fixed on the extension arm 3 and the clamping arms 42 symmetrically arranged on both sides of the clamping body 41, the middle parts of the two clamping arms 42 are respectively hinged to the clamping body 41 through the hinge shafts, the end of the clamping body 41 away from the extension arm 3 is provided with an arc-shaped opening, the shape and size of the arc-shaped opening are determined according to the shape and mounting requirements of the tool, the ends of the two clamping arms 42 close to the arc-shaped opening are respectively rotatably connected with the rollers 43, and the two clamping arms 42 away from the arc-shaped opening are provided with the opening spring 44, which is a common spring and is used to open the two clamping arms 42 away from the arc-shaped opening.

[0032] During use of the tool mounting clamp 4, the main shaft drives the tool to the tool handle to be lowered to the target position, the tool mounting clamp 4 approaches the main shaft, and under the guidance of the rollers 43, the annular groove of the tool handle is clamped between the two rollers 43, the two clamping arms 42 and the arc-shaped opening, the main shaft is loosened, and the installation of the tool on the tool disc is realized, when the tool is taken, the tool mounting clamp 4 drives the tool to approach the main shaft, the main shaft is lowered and clamps the tool, and then the tool mounting clamp 4 moves away from the main shaft.

[0033] In the above manner, the use of the opening spring 44 not only ensures that the clamping arms 42 are naturally opened when not subjected to external force, facilitating quick positioning and installation of the tool, but also can adaptively adjust the clamping force according to the size and shape of the tool, ensuring the stability and safety of clamping.

[0034] The above only describes the preferred embodiments of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solution falling within the concept of the present application shall fall within the protection scope of the present application. It should be noted that, for ordinary skilled persons in the technical field, some improvements and refinements without departing from the principles of the present application shall also be considered as falling within the protection scope of the present application.

Claims

1. A drill and tap magazine structure for a drill and tap machine, the magazine structure comprising a mounting base (1), a tool disc arranged on the mounting base (1), and a drive assembly arranged between the mounting base (1) and the tool disc for driving the tool disc in rotation, characterized in that: The cutter head comprises a connecting disc (2), a plurality of extension arms (3) which are detachably connected with the connecting disc (2) and extend radially, the extension arms (3) are arranged in an annular array along the circumferential direction of the connecting disc (2) and are provided in multiple, each of the extension arms (3) is provided with a cutter mounting clamp (4) at an end away from the connecting disc (2), when the cutter mounting clamp (4) rotates to a tool changing position with the connecting disc (2), the central axis of the clamping opening of the cutter mounting clamp (4) is coaxial with the main shaft of the drilling and tapping machine.

2. The drill and tap magazine structure of claim 1, wherein: A bowl-shaped structure is formed between the connecting disc (2) and the plurality of extension arms (3), an opening of the bowl-shaped structure is arranged towards the main shaft of the drilling and tapping machine, a boss (21) is arranged concentrically on the connecting disc (2), the boss (21) is arranged at an end away from the opening of the bowl-shaped structure, a cavity is arranged in the boss (21) and is communicated with the opening of the bowl-shaped structure, and the cavity is used for accommodating a driving assembly.

3. The drill and tap magazine structure of claim 2, wherein: The driving assembly comprises a bracket, a driving motor (8) fixed in the bracket and a harmonic reducer (9) fixed at one end of the bracket by a first bolt (10), the output shaft of the driving motor (8) is connected with the input end of the harmonic reducer (9), the other end of the bracket is fixedly connected with the mounting base (1) by a second bolt (11), and the output end of the harmonic reducer (9) is connected with the boss (21) by a third bolt (13).

4. The drill and tap magazine structure of claim 3, wherein: The bracket comprises oppositely arranged bottom plates (5), top plates (6) and connecting rods (7) arranged between the bottom plates (5) and the top plates (6), one end of the connecting rod (7) is fixedly connected with the bottom plate (5), the other end of the connecting rod (7) is slidably connected with the top plate (6) and is provided with a threaded segment at an end extending out of the top plate (6), a locking nut (12) is threadedly connected on the threaded segment, when the locking nut (12) is tightened, the driving motor (8) is clamped between the bottom plate (5) and the top plate (6), a fourth bolt (14) is connected between the top plate (6) and the driving motor (8), and the top plate (6) is provided with a through hole for the output shaft of the driving motor (8) to extend out.

5. The drill and tap magazine structure of claim 4 wherein: The bottom plate (5) and the top plate (6) are both arranged in a disc shape.

6. The drill and tap magazine structure of claim 1 wherein: The connecting disc (2) is provided with a clamping groove, the extension arm (3) is clamped in the clamping groove, and a fifth bolt (15) is connected between the extension arm (3) and the connecting disc (2).

7. The drill and tap magazine structure of claim 1 wherein: The cutter mounting clamp (4) comprises a clamping body (41) fixed on the extension arm (3) and clamping arms (42) symmetrically arranged on both sides of the clamping body (41), the middle parts of the two clamping arms (42) are respectively hinged to the clamping body (41) through hinge shafts, an arc-shaped opening is arranged at an end of the clamping body (41) away from the extension arm (3), two rollers (43) are respectively rotatably connected to one end of the two clamping arms (42) close to the arc-shaped opening, and a spreading spring (44) is arranged between the two clamping arms (42) away from the arc-shaped opening.

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