Multi-station vertical machining center

Abstract

The utility model discloses a multi-station vertical machining center, which relates to the field of machining centers, and comprises a machine body, a spindle box, a transmission mechanism driven by the spindle box, a cutter magnetically adsorbed and fixed at the lower end of the spindle box, a transmission belt tool magazine, a transmission shaft and a transmission shaft, the tool changer is located between the tools and the lower end of the transmission mechanism, the tool changer is conveyed to the lowermost end of the transmission mechanism and then turned to the vertical state, and the tool changer changes the positions of the standby tools and the tools through acute-angle rotation. The tool magazine is installed in the open groove formed in the back of the spindle box, the spindle box does not need to be moved during tool changing, meanwhile, the tool changing mechanism only needs small-amplitude rotation to achieve tool changing, the tool changing process is more stable, the machining effect is better, tool abrasion is reduced, and working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of machining centers, specifically to a multi-station vertical machining center. Background Technology

[0002] CNC milling machines, also known as milling machines, are automated machining equipment developed from general milling machines. The machining processes are basically the same, and their structures are somewhat similar. CNC milling machines are divided into two main categories: those without a tool magazine and those with a tool magazine. CNC milling machines with a tool magazine are also called machining centers.

[0003] When adding stations, existing multi-station machining centers also add the same number of tool magazines to accommodate the tool changing operation of the spindle head. During tool changing, the spindle head needs to be moved to the tool magazine, and the tool is changed by rotating the robotic arm one full turn. This method not only requires moving the spindle head next to the tool magazine, which may cause deviations and misalignment between the tool and the spare tool, but also involves changing the tool by rotating it one full turn. Due to the large rotation range, it is impossible to accurately align the tool with the mounting slot. All of these factors can lead to inaccurate tool installation, affecting machining results, and easily causing tool damage, reducing the service life and working efficiency of the equipment. Utility Model Content

[0004] To solve the above-mentioned technical problems, or at least partially solve them, this utility model provides a multi-station vertical machining center. By installing the tool magazine in a slot on the back of the spindle box, the spindle box no longer needs to be moved when changing tools. At the same time, the tool changing mechanism only needs to rotate slightly to change the tool, making the tool changing process more stable, the machining effect better, reducing tool wear, and improving work efficiency.

[0005] This utility model provides a multi-station vertical machining center, including a machine body, a spindle box mounted on the upper end of the inner wall of the machine body, a transmission mechanism mounted on the spindle box and driven by the spindle box, a cutting tool magnetically fixed to the lower end of the spindle box, a transmission belt mounted on the transmission mechanism, a tool magazine with one end hinged to the transmission belt and a spare cutting tool magnetically fixed to the other end, and a tool changing mechanism mounted on the lower end of the spindle box, located between the cutting tool and the lower end of the transmission mechanism. After the tool magazine is conveyed to the lowermost end of the transmission mechanism, it flips to a vertical position. The tool changing mechanism changes the position of the spare cutting tool and the cutting tool by rotating at an acute angle.

[0006] Optionally, the tool changing mechanism includes a motor, a screw, a moving block, a clamping component, a rotating shaft, and a protective shell. There are two motors, screws, moving blocks, and clamping components. The upper end of the rotating shaft is rotatably connected to the spindle box, and the lower end of the rotating shaft is fixedly connected to the protective shell. The two motors are symmetrically installed on one side of the protective shell along its width. The output ends of the two motors are fixedly connected to the screw on the same side. The other side of the two screws is rotatably connected to the other side of the inner wall of the protective shell. The front and rear sides of the protective shell are provided with slots. The two moving blocks pass through the slots and are threadedly connected to the screw on the same side. The two clamping components are respectively provided on the two moving blocks.

[0007] Optionally, the two moving blocks move in opposite directions.

[0008] Optionally, the two moving blocks are initially located on opposite sides of the protective shell.

[0009] Optionally, the two clamping members are positioned at the same location on the two moving blocks.

[0010] Optionally, a through groove is provided on the back of the spindle box, and the transmission mechanism is installed in the through groove. The transmission mechanism consists of two rotating wheels, which are rotatably connected to the output shaft of the spindle box.

[0011] Optionally, the tool magazine includes a tool holder and spare tools, the tool holder being hinged to a drive belt.

[0012] Optionally, when the spare tool in the tool magazine moves to the bottom of the transmission mechanism and flips, its height is the same as that of the tool.

[0013] Optionally, it also includes a controller for controlling the spindle box, transmission mechanism and tool changer to operate.

[0014] Optionally, multiple worktables are installed at equal intervals on the lower end of the inner wall of the machine body, and each of the multiple worktables corresponds to a spindle box.

[0015] Compared with the prior art, the technical solution provided by this utility model has the following advantages: by installing the tool magazine in the slot provided on the back of the spindle box, the tool can be changed without moving the spindle box. At the same time, the tool changing mechanism can change the tool with only a small rotation, making the tool changing more stable and improving the processing effect and work efficiency. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0017] 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, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a structural schematic diagram of a multi-station vertical machining center according to the present invention;

[0019] Figure 2 for Figure 1 A three-dimensional structural diagram of the spindle box shown in the figure;

[0020] Figure 3 for Figure 1 A schematic diagram of the side structure of the spindle box shown;

[0021] Figure 4 for Figure 1 A schematic diagram of the rear structure of the spindle box shown;

[0022] Figure 5 for Figure 2 A schematic diagram of the tool changing mechanism shown;

[0023] Figure 6 for Figure 2 The enlarged structural diagram at point a is shown in the figure.

[0024] Explanation of reference numerals in the attached figures

[0025] 1. Machine body; 2. Controller; 3. Worktable; 4. Spindle box; 5. Tool; 6. Transmission mechanism; 7. Transmission belt; 8. Tool magazine; 81. Spare tool; 9. Tool changing mechanism; 91. Motor; 92. Screw; 93. Moving block; 94. Clamping parts; 95. Rotating shaft; 96. Protective shell. Detailed Implementation

[0026] To better understand the above-mentioned objectives, features, and advantages of this utility model, the solution of this utility model will be further described below. It should be noted that, unless otherwise specified, the embodiments and features of this utility model can be combined with each other.

[0027] The following description sets forth many specific details to provide a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the embodiments described in the specification are only some embodiments of the present invention, and not all embodiments.

[0028] Combination Figures 1 to 5As shown, the multi-station vertical machining center provided by this utility model includes a machine body 1, a spindle box 4 installed on the upper end of the inner wall of the machine body 1, a transmission mechanism 6 installed on the spindle box 4 and driven by the spindle box 4, a cutting tool 5 magnetically attached to the lower end of the spindle box 4, a transmission belt 7 installed on the transmission mechanism 6, a tool magazine 8 with one end hinged to the transmission belt 7 and the other end magnetically attached to a spare cutting tool 81, and a tool changing mechanism 9 installed at the lower end of the spindle box 4 and located between the cutting tool 5 and the lower end of the transmission mechanism 6. After the tool magazine 8 is conveyed to the lower end of the transmission mechanism 6, it flips to a vertical state. The tool changing mechanism 9 changes the position of the spare cutting tool 81 and the cutting tool 5 by rotating at an acute angle.

[0029] Therefore, by installing the tool magazine in the slot provided on the back of the spindle box, tool changing can be completed without moving the spindle box. At the same time, the tool changing mechanism only needs to rotate slightly to change the tool, making tool changing more stable and improving machining effect and work efficiency.

[0030] In some embodiments, such as Figure 2 , Figure 5 and Figure 6 As shown, the tool changing mechanism 9 includes a motor 91, a screw 92, a moving block 93, a clamping member 94, a rotating shaft 95, and a protective shell 96. There are two motors 91, screws 92, moving blocks 93, and clamping members 94. The upper end of the rotating shaft 95 is rotatably connected to the spindle box 4, and the lower end of the rotating shaft 95 is fixedly connected to the protective shell 96. The two motors 91 are symmetrically installed on one side of the protective shell 96 along the length of the protective shell 96. The output ends of the two motors 91 are fixedly connected to the screws 92 on the same side. The other side of the two screws 92 is rotatably connected to the other side of the inner wall of the protective shell 96. The front and rear sides of the protective shell 96 are provided with slots. The two moving blocks 93 pass through the slots and are threadedly connected to the screws 92 on the same side. The two clamping members 94 are respectively opened on the two moving blocks 93.

[0031] The two moving blocks 93 move in opposite directions and are located on opposite sides of the protective shell 96 when the device is about to work. The rotation angle of the rotating shaft 95 is within 90°.

[0032] Therefore, when the device needs to change the tool, the clamping parts 94 on the moving blocks 93 on both sides of the protective shell 96 clamp the tool 5 and the spare tool 81, the motor 91 is started to drive the screw 92 to rotate, and the moving blocks 93 are limited by the protective shell 96 to move from one side of the protective shell to the other side. Then, the rotating shaft 95 is driven by the spindle box 4 to rotate slightly, so that the positions of the tool 5 and the spare tool 81 are exchanged. Then the spare tool 81 is installed on the spindle box 4, which reduces the time occupied by the tool changing process.

[0033] In some embodiments, such as Figure 2 , Figure 3 and Figure 4 As shown, a through slot is provided on the back of the spindle box 4, and the transmission mechanism 6 is installed in the through slot. The transmission mechanism 6 consists of two rotating wheels, which are rotatably connected to the output shaft of the spindle box 4. The tool magazine 8 includes a tool holder and a spare tool 81, and the tool holder is hinged to the transmission belt 7.

[0034] The spindle box 4 has a tool 5 installed at the lower end. When the spare tool 81 of the tool magazine 8 moves to the bottom of the transmission mechanism 6 and flips, its height is the same as that of the tool 5. When changing tools, the heights of the tool 5 and the spare tool 81 must be the same.

[0035] Therefore, when the device needs to change tools, the tool to be replaced in the tool magazine 8 is rotated to the bottom of the device by the transmission mechanism 6, and the rotation stops, waiting for the tool changing mechanism 9 to replace the tool 5 and the spare tool 81.

[0036] The following is in conjunction with the appendix Figure 1-6 A specific embodiment of this utility model is described below:

[0037] like Figures 1-6 As shown, the system includes a machine body 1, a spindle box 4 mounted on the upper part of the inner wall of the machine body 1, a transmission mechanism 6 mounted on the spindle box 4 and driven by the spindle box 4, a cutting tool 5 magnetically fixed to the lower part of the spindle box 4, a transmission belt 7 mounted on the transmission mechanism 6, a tool magazine 8 with one end hinged to the transmission belt 7 and the other end magnetically fixed with a spare cutting tool 81, and a tool changing mechanism 9 mounted on the lower part of the spindle box 4, located between the cutting tool 5 and the lower part of the transmission mechanism 6. After the tool magazine 8 is conveyed to the lowermost part of the transmission mechanism 6, it flips to a vertical position. The tool changing mechanism 9 changes the position of the spare cutting tool 81 and the cutting tool 5 by rotating at an acute angle. The system also includes a controller 2, which controls the operation of the spindle box 4, the transmission mechanism 6, and the tool changing mechanism 9. Multiple worktables 3 are installed at equal intervals on the lower part of the inner wall of the machine body 1, and each worktable 3 corresponds to a spindle box 4.

[0038] In actual use, the material to be processed is placed on the workbench 3 for processing. When it is necessary to change the tool, the tool to be replaced in the tool magazine 8 is rotated to the bottom of the device by the transmission mechanism 6 and the spare tool 81 installed on the transmission belt 7. After the rotation stops, the spare tool 81 is flipped to a vertical position. The clamping parts 94 on the moving blocks 93 on both sides of the protective shell 96 clamp the tool 5 and the spare tool 81. Then, the motor 91 is started to drive the screw 92 to rotate. The moving blocks 93 are limited by the protective shell 96, so that the moving blocks move from one side of the protective shell to the other side. The rotating shaft 95 is driven by the spindle box 4 to rotate slightly, so that the positions of the tool 5 and the spare tool 81 are exchanged. Then, the spare tool 81 is installed on the spindle box 4, which makes the tool change more stable and improves the processing effect and work efficiency.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0040] The above are merely specific embodiments of this utility model, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this utility model. Therefore, this utility model is not to be limited to these embodiments, but is to be accorded the widest scope consistent with the principles and novel features of the utility model herein.

Claims

1. A multi-station vertical machining center, characterized in that: include: Body (1); A spindle box (4) is mounted on the upper end of the inner wall of the machine body (1); A transmission mechanism (6) is mounted on the spindle box (4), and the transmission mechanism (6) is driven by the spindle box (4); A tool (5) is fixed to the lower end of the spindle box (4) by magnetic adsorption; A transmission belt (7) mounted on the transmission mechanism (6); A tool magazine (8), one end of which is hinged to the transmission belt (7), and a spare tool (81) is fixed by magnetic adsorption at the other end of the tool magazine (8); A tool changing mechanism (9) is installed at the lower end of the spindle box (4), and the tool changing mechanism (9) is located between the tool (5) and the lower end of the transmission mechanism (6); The tool magazine (8) is transferred to the lowermost end of the transmission mechanism (6) and then flipped to a vertical state, and the tool changing mechanism (9) changes the positions of the spare tool (81) and the tool (5) by rotating at an acute angle.

2. The multi-station vertical machining center according to claim 1, characterized in that: The tool changing mechanism (9) comprises a motor (91), a screw (92), a moving block (93), a clamping member (94), a rotating shaft (95) and a protective shell (96). The number of the motor (91), the screw (92), the moving block (93) and the clamping member (94) is two. The upper end of the rotating shaft (95) is rotatably connected to the spindle box (4), and the lower end of the rotating shaft (95) is fixedly connected to the protective shell (96). The two motors (91) are connected along the width of the protective shell (96). The two motors (91) are symmetrically mounted on one side of the protective shell (96) in the direction of degree, the output ends of the two motors (91) are fixedly connected to the screw rods (92) on the same side, the other sides of the two screw rods (92) are rotatably connected to the other side of the inner wall of the protective shell (96), the front and rear sides of the protective shell (96) are provided with slots, the two moving blocks (93) pass through the slots and are respectively threadedly connected to the screw rods (92) on the same side, and the two clamping members (94) are respectively provided on the two moving blocks (93).

3. The multi-station vertical machining center according to claim 2, characterized in that: The moving directions of the two moving blocks (93) are opposite.

4. The multi-station vertical machining center according to claim 2, characterized in that: In an initial state, the two moving blocks (93) are respectively located on two sides of the protective shell (96).

5. The multi-station vertical machining center according to claim 2, characterized in that: The two clamping members (94) are provided at the same positions on the two moving blocks (93).

6. The multi-station vertical machining center according to claim 1, characterized in that: A through slot is provided on the back of the spindle box (4), and the transmission mechanism (6) is installed in the through slot. The transmission mechanism (6) is two rotating wheels, and the two rotating wheels are rotatably connected to the output shaft of the spindle box (4).

7. The multi-station vertical machining center according to claim 1, characterized in that: The tool magazine (8) comprises a tool holder and a spare tool (81), and the tool holder is hinged to the transmission belt (7).

8. The multi-station vertical machining center according to claim 7, characterized in that: When the spare tool (81) of the tool magazine (8) moves to the lowermost end of the transmission mechanism (6) and turns over, its height is the same as that of the tool (5).

9. The multi-station vertical machining center according to claim 1, characterized in that: It also includes a controller (2), wherein the controller (2) is used to control the operation of the spindle box (4), the transmission mechanism (6) and the tool changing mechanism (9).

10. The multi-station vertical machining center according to claim 1, characterized in that: A plurality of workbenches (3) are installed at equal intervals at the lower end of the inner wall of the machine body (1), and the plurality of workbenches (3) correspond one to one with the main spindle box (4).

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