Tool changing mechanism of drilling and tapping machine

By introducing a worm gear and rotary table structure into the drilling and tapping machine, combined with the design of a movable plate and a limit plate, the problem of collision between the spindle and the tool magazine in the tool changing mechanism is solved, realizing rapid tool changing and efficient machining.

CN223889530UActive Publication Date: 2026-02-10DONGGUAN GUANTAI MACHINERY EQUIPMENT CO LTD
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Patent Information

Application Number
CN202423090752.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-16
Publication Date
2026-02-10
Estimated Expiration
2034-12-16

AI Technical Summary

Technical Problem

The existing tool changing mechanism of drilling and tapping machines is prone to collision between the spindle and the tool magazine during tool changing, causing deformation and affecting the machining effect. There is a lack of effective solutions.

Method used

It adopts a worm gear and turntable structure, and the second motor drives the worm to rotate the worm gear, realizing the rapid switching of the turret assembly. Combined with the design of the movable plate and the limit plate, it realizes the rapid replacement of the tool and avoids the collision between the spindle and the tool.

Benefits of technology

This technology enables rapid tool changing during the drilling and tapping process, avoiding collisions between the spindle and the cutting tool, and improving production efficiency and processing results.

✦ Generated by Eureka AI based on patent content.

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Abstract

The tool changing mechanism of the drilling and tapping machine comprises a machine frame, a sliding rail assembly, a tool turret assembly, a switching assembly and a placing assembly, the sliding rail assembly is arranged above the machine frame, the tool turret assembly is arranged above the sliding rail assembly, the switching assembly is arranged below the tool turret assembly, the placing assembly is arranged above the machine frame, and the tool turret assembly is arranged above the sliding rail assembly. A rotating disc is arranged, the rotating disc is connected with a tool turret assembly in a mounting mode, the rotating disc is fixedly connected with a worm wheel through a connecting shaft, and the worm wheel is rotationally connected with a mounting shell, so that when materials are machined, a second motor drives a worm to rotate, the worm drives the worm wheel to rotate synchronously, and the worm wheel drives the tool turret assembly to rotate through the rotating disc to switch tools; by means of the device, the tool can be rapidly replaced when materials are machined, the materials can be rapidly machined without waiting for replacement of the tool by the main shaft, the production efficiency is improved, and the problem that the main shaft or the tool magazine is prone to deformation when the tool is replaced is solved.
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Description

Technical Field

[0001] This utility model relates to drilling and tapping machine technology, specifically to a tool changing mechanism for a drilling and tapping machine. Background Technology

[0002] A drilling and tapping machine is a metalworking machine tool mainly used for drilling and tapping operations. It can process a variety of materials, such as metals and some plastics. For materials with different hardness, effective processing can be achieved by adjusting parameters such as spindle speed, feed rate and cutting tools.

[0003] Existing drilling and tapping machines typically use a tool magazine for tool changing. During the tool changing process, the spindle is moved downwards by rotating the tool magazine to replace the tool. The distance between the spindle and the tool magazine needs to be properly adjusted during tool changing to ensure a smooth tool change. Otherwise, the spindle and the tool magazine may collide, causing deformation of the spindle or the tool magazine, which will affect the drilling and tapping effect.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] In view of the problems in the related technologies, this utility model proposes a tool changing mechanism for a drilling and tapping machine to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows:

[0007] A tool changing mechanism for a drilling and tapping machine includes a frame, a slide rail assembly, a turret assembly, a switching assembly, and a placement assembly. The slide rail assembly is disposed above the frame, the turret assembly is disposed above the slide rail assembly, the switching assembly is disposed below the turret assembly, and the placement assembly is disposed above the frame.

[0008] This utility model further explains that the switching assembly includes a mounting housing, a worm gear, a worm, a second motor, and a turntable. The mounting housing is positioned above the slide rail assembly, and a groove adapted to the slide rail assembly is provided below the mounting housing. The worm gear is located inside the mounting housing, and the worm is located on one side of the worm gear and connected by serrated meshing. The worm is driven by the second motor, which is located on one side of the mounting housing. The turntable is positioned above the mounting housing.

[0009] This utility model further explains that the turret assembly includes a housing, a rotating shaft, a cutting tool, a mounting plate, a spring, a limiting plate, and a movable plate. The housing is positioned above the switching assembly, the rotating shaft is positioned outside the housing, the cutting tool is positioned inside the rotating shaft, the mounting plate is positioned outside the cutting tool, the spring is positioned inside the mounting plate, the limiting plate is positioned inside another set of mounting plates, and the movable plate is positioned inside the mounting plate.

[0010] This utility model further explains that the slide rail assembly includes a threaded rod, a slide bar, a first motor, and an electromagnetic slide rail. The threaded rod is disposed above the frame, the slide bar is disposed on one side of the threaded rod, the threaded rod is driven by the first motor, the first motor is disposed on one side of the frame, and the electromagnetic slide rail is disposed above the threaded rod.

[0011] This utility model further explains that the placement assembly includes a fixed plate, a movable slot, and a placement rack. The fixed plate is positioned above the frame, the movable slot is positioned above the fixed plate, and the placement rack is positioned above the movable slot.

[0012] This utility model further illustrates that: a support column is provided at the bottom of the frame, and a mounting groove is provided at the top of the frame, and the frame is connected to the slide rail assembly through the mounting groove.

[0013] The beneficial effects of this utility model are as follows: By setting up a turntable, the turntable is installed and connected to the turret assembly, the turntable is fixedly connected to the worm gear through a connecting shaft, and the worm gear is rotatably connected to the mounting shell. When processing materials, the second motor drives the worm to rotate, the worm gear drives the worm gear to rotate synchronously, and the worm gear drives the turret assembly to rotate through the turntable to switch the tool. This allows the tool to be changed quickly when processing materials, and prevents the spindle and the tool from colliding and deforming. This allows for rapid processing of materials and improves production efficiency.

[0014] The tool is fixedly connected to the mounting plate via a movable plate, and the inner side of the rotating shaft is fixedly connected to another set of mounting plates. The movable plate is provided with a limiting groove that matches the limiting plate. When changing the tool, pull the movable plate to unlock it from the limiting plate and pull out the tool. When installing the tool, align the movable plate with the insertion port on one side of the mounting plate and insert it. The movable plate and the limiting plate are locked together through the limiting groove. At the same time, the spring force resets and presses the movable plate and the limiting plate together, thus enabling quick tool replacement. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments 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.

[0016] Figure 1 This is a schematic diagram of the overall structure according to an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the switching component structure according to an embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the turret assembly structure according to an embodiment of the present utility model;

[0019] Figure 4 According to the embodiments of this utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0020] In the picture:

[0021] 1. Frame; 11. Support column; 2. Slide rail assembly; 21. Threaded rod; 22. Slide rod; 23. First motor; 24. Electromagnetic slide rail; 3. Turret assembly; 31. Housing; 32. Rotating shaft; 33. Tool; 34. Mounting plate; 35. Spring; 36. Limiting plate; 37. Movable plate; 4. Switching assembly; 41. Mounting shell; 42. Worm gear; 43. Worm; 44. Second motor; 45. Turntable; 5. Placement assembly; 51. Fixed plate; 52. Movable slot; 53. Placement rack. Detailed Implementation

[0022] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0023] According to an embodiment of the present invention, a tool changing mechanism for a drilling and tapping machine is provided.

[0024] like Figure 1-4As shown, the tool changing mechanism of the drilling and tapping machine according to an embodiment of the present utility model includes a frame 1, a slide rail assembly 2, a turret assembly 3, a switching assembly 4, and a placement assembly 5. The slide rail assembly 2 is disposed above the frame 1, the turret assembly 3 is disposed above the slide rail assembly 2, the switching assembly 4 is disposed below the turret assembly 3, and the placement assembly 5 is disposed above the frame 1.

[0025] The switching assembly 4 includes a mounting housing 41, a worm gear 42, a worm 43, a second motor 44, and a turntable 45. The mounting housing 41 is positioned above the slide rail assembly 2, and a groove adapted to the slide rail assembly 2 is provided below the mounting housing 41. The worm gear 42 is located inside the mounting housing 41, and the worm 43 is located on one side of the worm gear 42 and connected by serrated meshing. The worm 43 is driven by the second motor 44, which is located on one side of the mounting housing 41. The turntable 45 is positioned above the mounting housing 41 and is mounted and connected to the turret assembly 3. The turntable and the worm gear are fixedly connected by a connecting shaft, and the worm gear is rotatably connected to the mounting housing. When processing materials, the second motor 44 drives the worm 43 to rotate, and the worm gear 43 drives the worm gear 42 to rotate synchronously. The worm gear 42 drives the turret assembly 3 to rotate via the turntable 45 to switch tools, allowing for rapid tool changing during material processing without waiting for the spindle to change tools, thus improving production efficiency.

[0026] The turret assembly 3 includes a housing 31, a pivot 32, a cutter 33, a mounting plate 34, a spring 35, a limiting plate 36, and a movable plate 37. The housing 31 is positioned above the switching assembly 4. The pivot 32 is positioned outside the housing 31. The cutter 33 is positioned inside the pivot 32. The mounting plate 34 is positioned outside the cutter 33. The spring 35 is positioned inside the mounting plate 34. The limiting plate 36 is positioned inside another set of mounting plates 34. The movable plate 37 is positioned inside the mounting plate 34. The cutter 33 is fixedly connected to the mounting plate 34. The pivot 35... The inner side of plate 2 is fixedly connected to another set of mounting plates 34. The movable plate 37 is provided with a limiting groove that is compatible with the limiting plate 36. When changing the tool, pull the movable plate 37 to unlock the movable plate 37 from the limiting plate 36 and pull out the tool. When installing the tool, align the movable plate 37 with the insertion port on one side of the mounting plate 34 and insert it so that the movable plate 36 and the limiting plate 37 are locked together through the limiting groove. At the same time, the elastic force of the spring 35 resets and presses the movable plate 36 and the limiting plate 37 together, thereby realizing quick tool replacement.

[0027] The slide rail assembly 2 includes a threaded rod 21, a slide bar 22, a first motor 23, and an electromagnetic slide rail 24. The threaded rod 21 is located above the frame 1, and the slide bar 22 is located on one side of the threaded rod 21. The threaded rod 21 is driven by the first motor 23, which is located on one side of the frame 1. The electromagnetic slide rail 24 is located above the threaded rod 21.

[0028] The placement assembly 5 includes a fixed plate 51, a movable slot 52, and a placement rack 53. The fixed plate 51 is positioned above the frame 1, the movable slot 52 is positioned above the fixed plate 51, and the placement rack 53 is positioned above the movable slot 52.

[0029] A support column 11 is provided at the bottom of the frame 1, and a mounting slot is provided at the top of the frame 1, through which the slide rail assembly 2 is installed and connected.

[0030] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0031] In practical applications, the turntable 45 is installed and connected to the turret assembly 3. The turntable and the worm gear are fixedly connected via a connecting shaft, and the worm gear is rotatably connected to the mounting housing. When processing materials, the second motor 44 drives the worm 43 to rotate, and the worm 43 drives the worm gear 42 to rotate synchronously. The worm gear 42 drives the turret assembly 3 to rotate via the turntable 45 to switch tools, allowing for rapid tool changes during material processing without waiting for the spindle to change tools. This improves production efficiency. The tool 33 is fixed to the mounting plate 34. The inner side of the rotating shaft 32 is fixedly connected to another set of mounting plates 34. The movable plate 37 is provided with a limiting groove that matches the limiting plate 36. When changing the tool, pull the movable plate 37 to unlock it from the limiting plate 36 and pull out the tool. When installing the tool, align the movable plate 37 with the insertion port on one side of the mounting plate 34 and insert it so that the movable plate 36 and the limiting plate 37 are locked together through the limiting groove. At the same time, the elastic force of the spring 35 resets and presses the movable plate 36 and the limiting plate 37 together, thereby achieving quick tool replacement.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tool changing mechanism for a drilling and tapping machine, characterized in that, It includes a frame (1), a slide rail assembly (2), a turret assembly (3), a switching assembly (4), and a placement assembly (5). The slide rail assembly (2) is located above the frame (1), the turret assembly (3) is located above the slide rail assembly (2), the switching assembly (4) is located below the turret assembly (3), and the placement assembly (5) is located above the frame (1).

2. The tool changing mechanism of a drilling and tapping machine according to claim 1, characterized in that, The switching assembly (4) includes a mounting shell (41), a worm gear (42), a worm (43), a second motor (44), and a turntable (45). The mounting shell (41) is located above the slide rail assembly (2). A groove that is compatible with the slide rail assembly (2) is provided below the mounting shell (41). The worm gear (42) is located inside the mounting shell (41). The worm (43) is located on one side of the worm gear (42) and is connected by serrated meshing. The worm (43) is driven by the second motor (44), which is located on one side of the mounting shell (41). The turntable (45) is located above the mounting shell (41).

3. The tool changing mechanism of a drilling and tapping machine according to claim 1, characterized in that, The turret assembly (3) includes a housing (31), a rotating shaft (32), a cutting tool (33), a mounting plate (34), a spring (35), a limiting plate (36), and a movable plate (37). The housing (31) is located above the switching assembly (4). The rotating shaft (32) is located on the outside of the housing (31). The cutting tool (33) is located on the inside of the rotating shaft (32). The mounting plate (34) is located on the outside of the cutting tool (33). The spring (35) is located on the inside of the mounting plate (34). The limiting plate (36) is located on the inside of another set of mounting plates (34). The movable plate (37) is located on the inside of the mounting plate (34).

4. The tool changing mechanism of a drilling and tapping machine according to claim 1, characterized in that, The slide rail assembly (2) includes a threaded rod (21), a slide bar (22), a first motor (23), and an electromagnetic slide rail (24). The threaded rod (21) is located above the frame (1), and the slide bar (22) is located on one side of the threaded rod (21). The threaded rod (21) is driven by the first motor (23), which is located on one side of the frame (1). The electromagnetic slide rail (24) is located above the threaded rod (21).

5. The tool changing mechanism of a drilling and tapping machine according to claim 1, characterized in that, The placement assembly (5) includes a fixed plate (51), a movable slot (52), and a placement rack (53). The fixed plate (51) is positioned above the frame (1), the movable slot (52) is positioned above the fixed plate (51), and the placement rack (53) is positioned above the movable slot (52).

6. The tool changing mechanism of a drilling and tapping machine according to claim 1, characterized in that, A support column (11) is provided below the frame (1), and an installation groove is provided above the frame (1), and the frame (1) is connected to the slide rail assembly (2) through the installation groove.