A fully automatic CNC machine tool for machining bolt balls

Abstract

This invention discloses a fully automatic CNC machine tool for machining bolt balls, including a machine tool worktable and machine tool supports disposed at the lower ends of both ends of the worktable. A tool mounting mechanism is disposed at one end of the worktable, and a tailstock feed mechanism is disposed at the other end. A CNC tool changer is disposed on one side of the tool mounting mechanism, and a first CNC guide rail is disposed at the bottom of the CNC tool changer along the length of the worktable. This invention, by setting up the CNC tool changer and tool mounting mechanism, can automatically select and change tools according to different processes during the machining of bolt ball parts. By setting up multiple sets of CNC guide rails, the feed rate of each structure can be controlled. By setting up the first CNC rotary worktable, the movement trajectory of the workpiece during machining can be controlled, enabling fast and efficient machining of bolt balls, more effectively meeting people's needs, and solving the problems existing in the prior art.

Description

Technical Field

[0001] This invention relates to the field of bolt ball processing equipment, specifically to a fully automatic CNC machine tool for processing bolt balls. Background Technology

[0002] Steel structures are structures made of steel materials and are one of the main types of building structures. Their structure is mainly composed of steel beams, steel columns, steel trusses, and other components made of steel sections and plates. These components are typically connected by welds, bolts, or rivets. Due to their light weight and ease of construction, they are widely used in large factories, stadiums, and high-rise buildings. During the construction of steel structures, connecting components such as bolt balls are frequently used at joints. Bolt balls are an indispensable part of space frame steel structures, and their processing accuracy and efficiency directly affect the installation quality and construction progress of the entire project. Currently, existing machine tools use ordinary horizontal machine tools, with a manually rotatable worktable added to the original machine tool. Different angle threaded holes are machined by manually rotating and locking the worktable. Throughout the process, frequent manual gear shifting is required to meet the speed requirements of drill bits of different diameters, and different cutting tools also need to be manually changed. The entire process requires manual operation, resulting in high labor intensity, low efficiency, and an inability to guarantee processing accuracy. Clearly, the existing bolt ball machining method cannot effectively meet people's needs. Summary of the Invention

[0003] To solve the above-mentioned technical problems, the technical solution provided by the present invention is as follows: a fully automatic CNC machine tool for machining bolt balls, comprising a machine tool worktable and machine tool supports disposed at the lower parts of both ends of the machine tool worktable; a tool mounting mechanism is disposed at one end of the machine tool worktable, and a tailstock feed mechanism is disposed at the other end; a CNC tool changing mechanism is disposed on one side of the tool mounting mechanism; a first CNC guide rail is disposed at the bottom of the CNC tool changing mechanism along the length direction of the machine tool worktable; the CNC tool changing mechanism is mounted on the upper part of the first CNC guide rail through a first movable seat; a mounting bracket connected to the machine tool worktable is disposed at the bottom of the first CNC guide rail; the machine tool... A second CNC guide rail is provided on the upper part of the worktable along its length direction. A second movable seat is provided on the second CNC guide rail. A third CNC guide rail is provided on the upper part of the second movable seat along the width direction of the machine tool worktable. A third movable seat is provided on the third CNC guide rail. A first CNC rotary table is provided on the upper part of the third movable seat. A second CNC rotary table is provided on the first CNC rotary table. The machine tool also includes a CNC central control box. The tool mounting mechanism, tailstock feed mechanism, CNC tool changing mechanism, first CNC guide rail, second CNC guide rail, third CNC guide rail, and first CNC rotary table are all connected to the CNC central control box.

[0004] The advantages of this invention compared to the prior art are as follows: By setting up a CNC tool changing mechanism and a tool mounting mechanism, this invention can automatically select and change tools according to different processes during the machining of bolt ball parts; by setting up multiple sets of CNC guide rails, the feed rate of each structure can be controlled; by setting up a first CNC rotary table, the motion trajectory of the workpiece during machining can be controlled, enabling fast and efficient machining of bolt balls, more effectively meeting people's needs, and solving the problems existing in the prior art. Attached Figure Description

[0005] Figure 1 This is a schematic diagram of the front structure of a fully automatic CNC machine tool for processing bolt balls according to the present invention.

[0006] Figure 2 This is a schematic diagram of the rear structure of a fully automatic CNC machine tool for processing bolt balls according to the present invention.

[0007] Figure 3 This is a schematic diagram of the automatic gearbox in a fully automatic CNC machine tool for processing bolt balls according to the present invention.

[0008] Figure 4 This is a schematic diagram of the CNC tool changing mechanism in a fully automatic CNC machine tool for machining bolt balls according to the present invention.

[0009] Figure 5 This is a schematic diagram of the structure of the second CNC rotary table in a fully automatic CNC machine tool for processing bolt balls according to the present invention.

[0010] Figure 6 This is a schematic diagram of the tailstock feed mechanism in a fully automatic CNC machine tool for machining bolt balls according to the present invention. Detailed Implementation

[0011] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0012] In the description of the embodiments of this invention, it should be noted that if terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," or "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, they are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, terms such as "first," "second," and "third" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0013] Furthermore, the use of terms such as "horizontal," "vertical," and "sag" does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0014] In the description of the embodiments of the present invention, "multiple" means at least two.

[0015] In the description of the embodiments of the present invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0016] Example:

[0017] Combined with appendix Figure 1-6This embodiment discloses a fully automatic CNC machine tool for machining bolt balls, including a machine tool worktable 1 and machine tool supports 2 disposed at the lower parts of both ends of the machine tool worktable 1; a tool mounting mechanism 3 is provided at one end of the machine tool worktable 1, and a tailstock feed mechanism 4 is provided at the other end; a CNC tool changing mechanism 5 is provided on one side of the tool mounting mechanism 3; a first CNC guide rail 6 is provided at the bottom of the CNC tool changing mechanism 5 along the length direction of the machine tool worktable 1; the CNC tool changing mechanism 5 is mounted on the upper part of the first CNC guide rail 6 through a first movable seat 7; a mounting bracket 8 connected to the machine tool worktable 1 is provided at the bottom of the first CNC guide rail 6; a second CNC guide rail 9 is provided on the upper part of the machine tool worktable 1 along its length direction; the second CNC guide rail 9... The system includes a second movable seat 10, a third CNC guide rail 11 mounted on the upper part of the second movable seat 10 along the width direction of the machine tool worktable 1, a third movable seat 12 mounted on the third CNC guide rail 11, a first CNC rotary worktable 13 mounted on the upper part of the third movable seat 12, and a second CNC rotary worktable 14 mounted on the first CNC rotary worktable 13; it also includes a cooling water pipe 15, which is located on one side of the second CNC rotary worktable 14; and a CNC central control box. The tool mounting mechanism 3, the tailstock feed mechanism 4, the CNC tool changing mechanism 5, the first CNC guide rail 6, the second CNC guide rail 9, the third CNC guide rail 11, and the first CNC rotary worktable 13 are all connected to the CNC central control box.

[0018] The CNC tool changing mechanism 5 can be an existing CNC tool changing mechanism 5. For example, in this embodiment, the CNC tool changing mechanism includes a tool magazine body 501, a tool disc 502, a tool changing control box 503, and a tool changing arm 504. The tool disc 502 is rotatably mounted on the tool magazine body 501. Several tool placement structures 505 are arranged circumferentially on the upper part of the tool disc 502. The tool placement structures 505 are mounted on the tool disc 502 through a flipping mechanism. The tool changing control box 503 is located between the CNC tool changing mechanism 5 and the tool mounting mechanism 3. The tool changing arm 504 is mounted on the tool changing control box 503 through a rotating mechanism and an extension mechanism. Both ends of the tool changing arm 504 are provided with tool gripping claw mechanisms 506 corresponding to the tool changing position of the tool magazine body 501 and the tool mounting position of the tool mounting mechanism 3.

[0019] The tool mounting mechanism 3 includes an automatic transmission 301, which is connected to a tool clamping mechanism 302 extending out of the automatic transmission 301. The tool clamping mechanism 302 corresponds to the tool gripping claw mechanism of the CNC tool changer 5. The tool clamping mechanism 302 opens and closes to clamp the tool by driving the cylinder 303. This structure can also use existing devices. The automatic transmission 301 achieves automatic speed change through the automatic transmission 304.

[0020] The first CNC rotary table 13 and the second CNC rotary table 14 are connected by a mounting bracket 17. Both the first CNC rotary table 13 and the second CNC rotary table 14 are equipped with a rotary locking mechanism. The rotation center axis of the second CNC rotary table 14 is at 90° with the rotation center axis of the first CNC rotary table 13. The second CNC rotary table 14 is equipped with a workpiece holder 16 at its rotation center axis. The workpiece holder 16 can be a pneumatic or electric automatic clamping holder, or a manually fixed device. For example, in this embodiment, the manually fixed workpiece holder 16 is: an axial through hole is provided at the rotation center axis of the second CNC rotary table 14, and a locking screw 1601 is inserted into the through hole. The two ends of the locking screw 1601 extending out of the second CNC rotary table 14 are respectively provided with a washer and a locking element 1602. The through hole and the central axis of the tool clamping mechanism 302 are located on the same horizontal plane.

[0021] The tailstock feed mechanism 4 includes a tailstock support platform 401 disposed on the upper part of the machine tool worktable 1. A fourth CNC guide rail 402 is disposed on the upper part of the tailstock support platform 401 along the width direction of the machine tool worktable 1. A fourth moving seat 403 is disposed on the upper part of the fourth CNC guide rail 402. A CNC ejection mechanism 404 is disposed on the upper part of the fourth moving seat 403 along the length direction of the machine tool worktable 1. A workpiece stop plate 405 corresponding to the second CNC rotary worktable 14 is disposed at the extended end of the CNC ejection mechanism 404. A semi-circular notch 406 is provided on the workpiece stop plate 405. The CNC ejection mechanism 404 is provided with a CNC push rod 404a connected to the workpiece stop plate 405 and a guide rod 404b disposed parallel to the CNC push rod 404a.

[0022] First, the bolt ball blank to be machined is installed on the workpiece holder in the second CNC rotary table. Generally, the bolt ball has a bolt hole in its center. The locking bolt is inserted into the through hole of the horizontal mounting shaft and secured to the bolt ball blank using the locking mechanism. At the start of machining, the tool changer's tool disc begins to rotate, rotating the required tool to the tool change position and flipping it outwards. The tool changer arm grabs the flipped-out tool and extends it outwards under the action of the extension mechanism. Then, under the action of the rotation mechanism, it rotates to the tool mounting mechanism. The extension mechanism retracts to install the tool into the tool clamping mechanism within the tool mounting mechanism. The machining process generally consists of four steps: milling, drilling, chamfering, and tapping. Automatic tool changing for each step is achieved through a CNC tool changer. The first and second CNC rotary tables move and rotate along the third CNC guide rail towards the tool mounting mechanism to perform various machining steps on the bolt ball blank. In this embodiment, each CNC mechanism is controlled by a CNC central control box, which sends control commands to ensure orderly machining and maintain machining accuracy.

[0023] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A fully automatic CNC machine tool for machining bolt balls, characterized in that, The system includes a machine tool worktable and machine tool supports disposed at the lower parts of both ends of the worktable. A tool mounting mechanism is disposed at one end of the worktable, and a tailstock feed mechanism is disposed at the other end. A CNC tool changer is disposed on one side of the tool mounting mechanism. A first CNC guide rail is disposed at the bottom of the CNC tool changer along the length of the worktable. The CNC tool changer is mounted on the upper part of the first CNC guide rail via a first movable seat. A mounting bracket connected to the worktable is disposed at the bottom of the first CNC guide rail. A second CNC guide rail is disposed at the upper part of the worktable along its length. A second movable seat is fitted on the second CNC guide rail. A third CNC guide rail is provided on the upper part of the second movable seat along the width direction of the machine tool table. A third movable seat is fitted on the third CNC guide rail. A first CNC rotary table is provided on the upper part of the third movable seat. A second CNC rotary table is provided on the first CNC rotary table. The system also includes a CNC central control box. The tool mounting mechanism, tailstock feed mechanism, CNC tool changing mechanism, first CNC guide rail, second CNC guide rail, third CNC guide rail, and first CNC rotary table are all connected to the CNC central control box. The tool mounting mechanism includes an automatic gearbox and a tool clamping mechanism connected to the automatic gearbox. The tool clamping mechanism extends out of the automatic gearbox and is positioned corresponding to the CNC tool changing mechanism. The first CNC rotary table and the second CNC rotary table are connected by a mounting bracket. The rotation center axis of the second CNC rotary table is at 90° with the rotation center axis of the first CNC rotary table. The second CNC rotary table is provided with a workpiece retainer corresponding to the tool mounting mechanism at its rotation center axis. Both the first CNC rotary table and the second CNC rotary table are provided with a rotary locking mechanism. The tailstock feed mechanism includes a tailstock support platform disposed on the upper part of the machine tool worktable. A fourth CNC guide rail is disposed on the upper part of the tailstock support platform along the width direction of the machine tool worktable. A fourth movable seat is disposed on the upper part of the fourth CNC guide rail. A CNC propulsion device is disposed on the upper part of the fourth movable seat along the length direction of the machine tool worktable. A workpiece stop plate corresponding to the second CNC rotary worktable is disposed at the extended end of the CNC propulsion device. A semi-circular notch is provided on the workpiece stop plate, and the semi-circular notch is oriented towards the second CNC rotary worktable. It also includes a cooling water pipe, which is located on one side of the second CNC rotary table; The automatic transmission is provided on the side of the automatic transmission and connected to the automatic transmission. The end of the automatic transmission away from the tailstock feed mechanism is provided with a tool clamping mechanism drive cylinder connected to the tool clamping mechanism. The CNC propulsion device is equipped with a CNC push rod connected to the workpiece backing plate, and a guide rod arranged parallel to the CNC push rod.

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