Tool magazine for numerical control machine tool
Patent Information
- Application Number
- CN202522419475.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-14
- Publication Date
- 2026-10-20
- Estimated Expiration
- 2035-11-14
AI Technical Summary
[0003]目前，在现有的刀库中，它的夹刀装置要么是一体式结构的弹性抱夹爪，要么是由弹簧及供弹簧一端外套安装的夹块构成；故在刀具装入或取出刀库的过程中，通过刀具顶推弹性抱夹爪做张开的弹性变形或者顶推夹块做压缩弹簧的弹性变形，从而使得刀具来到被复位后的弹性抱夹爪或夹块所夹持的位置；这样存在刀具进取困难及刀具在进取过程中摩擦（磨损）大的缺陷
[0007]与现有技术相比，借助“盖体装配于刀库基座上并遮盖安装槽在第一端面上的槽口”的设计，一方面防止灰尘、废料等杂质从刀库基座的第一端面进入安装槽内而造成弹性件损坏，另一方面与刀库基座一起对圆形夹刀柱进行限位，使圆形夹刀柱沿安装槽滑移；再结合“圆形夹刀柱沿安装槽贯穿第一端面的方向伸展并可绕该圆形夹刀柱的轴心线转动，圆形夹刀柱还与弹性件弹性抵接，圆形夹刀柱在弹性件的驱使下部分地凸设于刀具存放腔中”的设计，以在刀具装入刀具存放腔或从刀具存放腔取出的过程中，由刀具带动圆形夹刀柱围绕圆形夹刀柱的轴心线转动，从而使得刀具易进易出，并减少刀具在进取过程中摩擦（磨损）。
Smart Images
Figure CN224866888U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a tool magazine used in machining, and more particularly to a tool magazine for CNC machine tools. Background Technology
[0002] As is well known, tool magazines are very common on CNC machine tools. By clamping the tools in the tool magazine, the spindle of the CNC machine tool can selectively change tools with different tools clamped in the tool magazine.
[0003] Currently, in existing tool magazines, the tool clamping device is either an integrated elastic clamping jaw or consists of a spring and a clamping block that is sleeved on one end of the spring. Therefore, during the process of loading or unloading the tool into the tool magazine, the tool pushes the elastic clamping jaw to open elastically or pushes the clamping block to compress the spring elastically, so that the tool comes to the position where it is clamped by the reset elastic clamping jaw or clamping block. This has the disadvantages of difficulty in tool entry and high friction (wear) during the entry and exit process.
[0004] Therefore, there is an urgent need for a tool magazine for CNC machine tools to overcome the above-mentioned defects. Utility Model Content
[0005] The purpose of this invention is to provide a tool magazine for CNC machine tools that makes it easy to feed and retrieve tools and reduces friction (wear) of tools during the feeding and retrieving process.
[0006] To achieve the above objectives, the tool magazine for CNC machine tools of this utility model includes a tool magazine base, a tool clamping mechanism, and a cover. The tool magazine base has multiple spaced-apart tool storage cavities for inserting or removing tools from the side of the tool magazine base, and mounting slots arranged opposite to each tool storage cavity. The mounting slots communicate with the tool storage cavities and also penetrate the first end face of the tool magazine base. The tool clamping mechanism includes elastic elements and circular clamping posts each assembled in the mounting slot. The circular clamping posts extend along the direction through the first end face of the mounting slot and can rotate about their axis. The circular clamping posts also elastically abut against the elastic elements, and partially protrude from the tool storage cavities under the drive of the elastic elements. The cover is assembled on the tool magazine base and covers the opening of the mounting slot on the first end face.
[0007] Compared with existing technologies, the design of "the cover being assembled on the tool magazine base and covering the groove on the first end face of the mounting slot" prevents dust, waste, and other impurities from entering the mounting slot from the first end face of the tool magazine base and causing damage to the elastic element. Furthermore, together with the tool magazine base, it limits the movement of the circular tool clamping column, allowing it to slide along the mounting slot. Combined with the design of "the circular tool clamping column extending along the direction of the mounting slot through the first end face and rotating around its axis, while also elastically contacting the elastic element, and partially protruding from the tool storage cavity under the drive of the elastic element," the tool drives the circular tool clamping column to rotate around its axis during tool loading or unloading, making tool loading and unloading easy and reducing friction (wear) during the process.
[0008] Preferably, the tool magazine base is provided with a limiting structure that protrudes laterally into the mounting groove, and the limiting structure cooperates with the circular tool clamping post to block the circular tool clamping post when the circular tool clamping post protrudes into the tool storage cavity.
[0009] Preferably, the limiting structure protrudes from one side of the mounting groove and is arranged adjacent to the tool storage cavity.
[0010] Preferably, the cover is stacked on the first end face of the tool magazine base, and the cover is detachably assembled with the tool magazine base by means of fasteners.
[0011] Preferably, each of the tool storage cavities corresponds to two of the mounting slots.
[0012] Preferably, the outer contour of the tool magazine base is an intermittent circle interrupted by the tool storage cavities, all the tool storage cavities are arranged in a circle around the circumference of the tool magazine base, the mounting groove and the elastic element extend arcuately around the center line of the tool magazine base, and the outer contour of the cover is an intermittent circle matching the tool magazine base.
[0013] Preferably, the elastic element is a compression spring.
[0014] Preferably, the tool magazine for CNC machine tools of this utility model further includes a support base for assembling and fixing the tool magazine base and a first protective cover that can be rotated relative to the support base to an open position and a closed position. When the first protective cover is rotated to the closed position, it and the support base together define a closed space that closes the tool magazine base, the tool clamping mechanism and the cover.
[0015] Preferably, the tool magazine for CNC machine tools of this utility model further includes a rotary drive mechanism for driving the first protective cover to rotate, the rotary drive mechanism being installed at the end of the bearing base opposite to the tool magazine base.
[0016] Preferably, the rotary drive mechanism includes a gear, a rack, a rotary shaft, and a linear actuator using gas or liquid as the working medium. The end of the support base opposite to the tool magazine base has a mounting cavity for accommodating the gear and the rotary shaft. The end of the rotary shaft extends from the side wall of the mounting cavity of the support base and is assembled and connected to the first protective cover. The gear is fixedly mounted on the rotary shaft, and the rack is assembled to the output end of the linear actuator. The rack also meshes with the gear.
[0017] Preferably, the tool magazine for CNC machine tools of this utility model further includes a second protective cover, which is mounted on the end of the bearing base opposite to the tool magazine base. The second protective cover also covers the linear drive, gear, rack, rotary shaft and mounting cavity; the linear drive is a cylinder or a hydraulic cylinder.
[0018] Preferably, the tool magazine for CNC machine tools of this utility model further includes an external support for assembling and fixing the bearing base. The external support has a clearance space for the first protective cover to be screwed out of the external support when rotating towards the closed position or screwed into the external support when rotating towards the open position.
[0019] Preferably, the support base is provided with a dust removal brush or dust removal adhesive that works with the first protective cover to remove dust from inside the first protective cover.
[0020] Preferably, the first protective cover is a transparent protective cover.
[0021] Preferably, the first protective cover also extends in an arc around the rotation center line of the first protective cover.
[0022] Preferably, the tool magazine for CNC machine tools of this utility model further includes an auxiliary mechanism installed on the supporting base and located beside the tool magazine base. The auxiliary mechanism includes a mechanism body, a dust removal channel opened in the mechanism body, and a tool dressing wheel or tool setting device installed on the mechanism body. The mechanism body is provided with an air inlet connector communicating with the dust removal channel and an inclined surface opposite to the outlet of the dust removal channel. The extended surface of the inclined surface intersects with the tool dressing surface of the tool dressing wheel or the tool setting surface of the tool setting device. Attached Figure Description
[0023] Figure 1 The tool magazine for CNC machine tools of this utility model has the first protective cover in the open position and displays a three-dimensional view of the tool.
[0024] Figure 2 Is Figure 1 The 3D model of the knife is hidden on the basis of the image.
[0025] Figure 3This is a perspective view of the tool magazine for CNC machine tools of this utility model when the first protective cover is in the closed position.
[0026] Figure 4 yes Figure 3 The diagram shows a plan view of a CNC machine tool tool magazine viewed in the opposite direction of arrow A.
[0027] Figure 5 It is along Figure 4 Internal view of the section cut along the BB line.
[0028] Figure 6 yes Figure 3 A stereoscopic view from another angle.
[0029] Figure 7 yes Figure 6 A three-dimensional exploded view.
[0030] Figure 8 yes Figure 7 A further exploded 3D diagram.
[0031] Figure 9 This is a perspective view of the tool magazine base, tool clamping mechanism, and cover assembled together in the tool magazine for CNC machine tools according to this utility model.
[0032] Figure 10 yes Figure 9 A three-dimensional exploded view.
[0033] Figure 11 yes Figure 10 A plan view of the building with the cover hidden and viewed in the opposite direction of arrow A.
[0034] Figure 12 This is a perspective view of the auxiliary mechanism in the tool magazine of the CNC machine tool according to this utility model.
[0035] Figure 13 yes Figure 12 The auxiliary mechanism shown is viewed in the direction indicated by the arrow next to it.
[0036] Figure 14 It is along Figure 13 Internal view cut by the CC line. Detailed Implementation
[0037] To explain the technical content and structural features of this utility model in detail, the following description is provided in conjunction with the embodiments and accompanying drawings.
[0038] Please combine Figure 1 , Figure 2 , Figure 9 and Figure 10The tool magazine 100 for CNC machine tools of this utility model includes a tool magazine base 10, a tool clamping mechanism 20, and a cover 30. The tool magazine base 10 has five spaced-apart tool storage cavities 11 and mounting slots 12 arranged opposite to each tool storage cavity 11. The mounting slots 12 communicate with the tool storage cavities 11 and also penetrate through the first end face 13 of the tool magazine base 10. The tool storage cavities 11 allow tools 200 to be inserted into or removed from the tool magazine base 20 from the side; alternatively, tools 200 can be inserted into or removed from the tool magazine base 20. Figure 11 In this example, each tool storage cavity 11 corresponds to two mounting slots 12, such that the two mounting slots 12 are arranged symmetrically with respect to the tool storage cavity 11.
[0039] Meanwhile, the tool clamping mechanism 20 includes elastic members 21 and circular tool clamping posts 22, each assembled in the mounting groove 12. The circular tool clamping posts 22 extend along the direction of the mounting groove 12 through the first end face 13 (see the direction indicated by arrow A) to ensure that the axis 221 of the circular tool clamping posts 22 is parallel to the center line 15 of the tool magazine base 10 (see... Figure 11 The circular tool holder 22 can rotate around its axis 221, and it also elastically abuts against the elastic element 21. Therefore, driven by the elastic element 21, the circular tool holder 22 partially protrudes into the tool storage cavity 11, as shown in the diagram. Figure 9 , Figure 10 and Figure 11 As shown.
[0040] The cover 30 is mounted on the tool magazine base 10, which provides support for the cover 30. The cover 30 also covers the slot 121 on the first end face 13 of the mounting groove 12 to prevent dust, waste, and other impurities from entering the mounting groove 12 from the first end face 13 and causing damage to the elastic element 21. Alternatively, in... Figure 5 In this example, the cover 30 is stacked on the first end face 13 of the tool magazine base 10; furthermore, in Figure 1 , Figure 2 , Figure 9 and Figure 10 In this design, the cover 30 is detachably connected to the tool magazine base 10 by means of fasteners 31 (such as, but not limited to, screws). Therefore, the detachable connection between the cover 30 and the tool magazine base 10 is achieved by means of fasteners 31, making the replacement of the elastic element 21 and the circular tool clamping post 22 convenient, easy to repair, and with low maintenance costs. More specifically, see the description below.
[0041] like Figure 10 and Figure 11As shown, as an example, the tool magazine base 10 is provided with a limiting structure 14 that protrudes laterally into the mounting groove 12. When the circular tool clamping post 22 partially protrudes into the tool storage cavity 11, the limiting structure 14 engages with the circular tool clamping post 22 to effectively prevent the circular tool clamping post 22 from accidentally slipping out of the mounting groove 12 and falling into the outside via the tool storage cavity 11. Alternatively, in... Figure 11 As an example, the limiting structure 14 protrudes from one side of the mounting groove 12, for example, from the side of the mounting groove 12 away from the center line 15 of the tool magazine base 10; obviously, depending on actual needs, it can also protrude from the side of the mounting groove 12 closer to the center line 15 of the tool magazine base 10, so it is not considered as such. Figure 11 As shown, the limiting structure 14 is also arranged adjacent to the tool storage cavity 11 to effectively improve the utilization efficiency of the mounting slot 12.
[0042] like Figure 10 As shown, as an example, the outer contour 16 of the tool magazine base 10 is a discontinuous circle; correspondingly, in Figure 11 In this example, the outer contour 32 of the cover 30 is an intermittent circle that matches the tool magazine base 10, making the fit between the tool magazine base 10 and the cover 30 neater and simpler, facilitating the manufacturing of both the tool magazine base 10 and the cover 30, and increasing the number of tools 200 that can be stored. At this time, all tool storage cavities 11 are arranged in a circle around the circumference of the tool magazine base 10. Optionally, in... Figure 11 In this example, all tool storage cavities 11 are arranged in a circle at equal intervals around the tool magazine base 10 to ensure that the central angles between any two adjacent tool storage cavities 11 are equal. Obviously, depending on actual needs, all tool storage cavities 11 can also be arranged in a circle at unequal intervals around the tool magazine base 10. Therefore, it is not necessary to specify the arrangement. Figure 11 As shown, this is a limited description. Additionally, the mounting groove 12 and the elastic element 21 each extend in an arc around the center line 15 of the tool magazine base 10, so that the circular tool clamping post 22 slides in an arc around the center line 15 of the tool magazine base 10 along the mounting groove 12. It is understood that, although... Figure 10 The outer contours 16 (32) of the tool magazine base 10 and the cover 30 are shown to be discontinuous circles; obviously, depending on actual needs, the outer contours 16 (32) of the tool magazine base 10 and the cover 30 can also be other shapes known in the art, so they are not considered. Figure 10 The above is the limit.
[0043] like Figures 1 to 8 As shown, as an example, the CNC machine tool tool magazine 100 of this utility model also includes a support base 40 for assembling and fixing the tool magazine base 10, and a mechanism that can rotate relative to the support base 40 to... Figure 1 or Figure 2 The opening position shown and Figure 3The first protective cover 50 is shown in the closed position. When rotated to the closed position, the first protective cover 50, together with the support base 10, defines a closed space 45 that encloses the tool magazine base 10, the tool clamping mechanism 20, and the cover 30, as shown in the diagram. Figure 5 As shown. Therefore, by utilizing the rotational opening and closing operation of the first protective cover 50 relative to the supporting base 50, the space required for the movement of the first protective cover 50 is small, reducing the impact on the usable space of the user's workbench or processing area. Specifically, in Figure 5 , Figure 7 and Figure 8 As an example, the CNC machine tool tool magazine 100 of this utility model also includes a rotary drive mechanism 60 for driving the first protective cover 50 to rotate, providing power for the automatic rotational opening and closing of the first protective cover 50; the rotary drive mechanism 60 is installed at the end 41 of the support base 40 opposite to the tool magazine base 20; optionally, in Figure 5 , Figure 7 and Figure 8 As an example, the rotary drive mechanism 60 includes a gear 61, a rack 62, a rotating shaft 63, and a linear actuator 64 using gas or liquid as the working medium. The end 41 of the support base 30 opposite to the tool magazine base 20 has a mounting cavity 42 for housing the gear 61 and the rotating shaft 63. The end 631 of the rotating shaft 63 extends from the side wall 421 of the mounting cavity 42 of the support base 30 and is assembled and connected to the first protective cover 50. The gear 61 is fixedly fitted onto the rotating shaft 63 to meet the requirement that the gear 61 and the rotating shaft 63 rotate together. The rack 62 is assembled onto the output end 641 of the linear actuator 64, and the rack 62 also meshes with the gear 61. Therefore, the linear actuator 64 drives the rack 62 to move linearly, thereby enabling the linearly moving rack 62 to drive the rotating shaft 63 and the first protective cover 50 to rotate together via the gear 61. Because the linear actuator 64 uses gas or liquid as its working medium, it is more suitable for CNC machine tool applications. This is because CNC machine tools typically operate with hot water (cutting fluid), and dust or mist is generated during the machining process, which can easily penetrate into various parts of the machine. Therefore, the linear actuator 64, using gas or liquid as its working medium, is less prone to damage and easier to control. More specifically, in Figure 7 and Figure 8 In this context, as an example, the linear actuator 64 is a cylinder or hydraulic cylinder, such as, but not limited to, a rodless cylinder or rodless hydraulic cylinder; furthermore, in Figure 5 As an example, the first protective cover 50 also extends in an arc around the rotation center line of the first protective cover 50 (see the axis of rotation 63) to further reduce the space required for the movement of the first protective cover 50. The first protective cover 50 is a transparent protective cover to facilitate the operator's observation of the distribution of the cutting tools 200 within the first protective cover 50; in addition, in Figure 5In the middle, the support base 40 is provided with a dust removal brush 43 or dust removal adhesive that works with the first protective cover 50 to remove dust from inside the first protective cover 50, so as to prevent dust from entering the enclosed space 45.
[0044] like Figure 3 and Figures 5 to 8 As shown in the figure, as an example, the CNC machine tool tool magazine 100 of this utility model also includes a second protective cover 70. The second protective cover 70 is mounted on the end 41 of the support base 40 facing away from the tool magazine base 20. The second protective cover 70 also covers the linear drive 64, gear 61, rack 62, rotary shaft 63, and mounting cavity 64. Therefore, by means of the second protective cover 70, the linear drive 64, gear 61, rack 62, rotary shaft 63, and mounting cavity 64 are sealed, reducing the damage caused by dust or mist during machining to the linear drive 64, rack 61, rack 63, and rotary shaft 63. like Figures 1 to 8 As shown, as an example, the tool magazine 100 for CNC machine tools of this utility model also includes an external support base 80 for mounting and fixing the support base 40. The external support base 80 has a clearance space 81 for the first protective cover 50 to be screwed out of the external support base 80 when rotating to the closed position or screwed into the external support base 80 when rotating to the open and closed position. Therefore, with the help of the external support base 80, it is convenient to install the tool magazine 100 for CNC machine tools of this utility model on the CNC machine tool, and the disassembly and assembly are convenient and flexible.
[0045] Combination Figures 1 to 5 and Figures 12 to 14 As an example, the CNC machine tool tool magazine 100 of this utility model also includes an auxiliary mechanism 90 mounted on the support base 40 and located beside the tool magazine base 10. The auxiliary mechanism 90 includes a mechanism body 91, a dust removal channel 92 opened in the mechanism body 91, and a tool dressing wheel 93 mounted on the mechanism body 91. The mechanism body 91 is provided with an air inlet 94 communicating with the dust removal channel 92 and an inclined surface 95 opposite to the outlet 921 of the dust removal channel 92. The extended surface of the inclined surface 95 (see Figure 14 (As shown by the dashed line) intersects with the dressing surface 931 of the dressing wheel 93; this causes the gas in the dust removal channel 92 to be reflected by the inclined surface 95 when it is blown out of the outlet 921, so that the reflected gas is directly blown towards the dressing surface 931 of the dressing wheel 93. The gas flow direction is shown in the figure. Figure 14 As shown by the dotted arrow, this allows the waste material left after the tool 200 has been sharpened by the dressing surface 931 to be blown away, thus ensuring the sharpening accuracy of the tool 200 by the dressing wheel 93. It should be noted that, depending on actual needs, a tool setting device can also be used to replace it. Figures 1 to 5 and Figures 12 to 14 The dressing wheel 93 is shown; when the dressing wheel 93 is replaced using a tool setter, the extended surface of the inclined surface 95 (see...) Figure 14(As shown by the dashed line) intersects with the tool setting surface of the tool setter. It should be noted that the extended surface is a virtual extension of the inclined surface 95°.
[0046] Compared with the prior art, the design of "the cover 30 is assembled on the tool magazine base 10 and covers the groove 121 on the first end face 13 of the mounting groove 12" prevents dust, waste and other impurities from entering the mounting groove 12 from the first end face 13 of the tool magazine base 10 and causing damage to the elastic element 21 (e.g., compression spring). On the other hand, together with the tool magazine base 10, it constrains the circular tool clamping post 22, allowing the circular tool clamping post 22 to slide along the mounting groove 12. Combined with the design of "the circular tool clamping post 22 passing through the first end face 13 of the mounting groove 12", the design achieves the following effect: The design of "the end face 13 extends in the direction and can rotate around the axis 221 of the circular clamping column 22, and the circular clamping column 22 also elastically abuts against the elastic member 21, and the circular clamping column 22 is partially protruding in the tool storage cavity 11 under the drive of the elastic member 21" is designed so that when the tool 200 is loaded into or taken out of the tool storage cavity 11, the tool 200 drives the circular clamping column 22 to rotate, thereby making it easy for the tool 200 to enter and exit, and reducing the friction (wear) of the tool 200 during the entry and exit process.
[0047] It should be noted that, although Figure 2 , Figure 9 and Figure 10 The diagram shows five tool storage cavities 11. Obviously, depending on actual needs, the number of tool storage cavities 11 can also be two, three, four, six, or more. Therefore, it is not specified that... Figure 2 , Figure 9 and Figure 10 The description is limited to the examples shown. Additionally, when the second protective cover 70 is used to enclose the linear actuator 63, gear 61, rack 62, rotating shaft 63, and mounting cavity 42, a first control channel for controlling the linear actuator 63 to open and flip the first protective cover 50, and a second control channel for controlling the linear actuator 63 to close and flip the first protective cover 50, can be provided within the support base 40. An exposed first connector 44 communicating with the first control channel and an exposed second connector 46 communicating with the second control channel are also provided on the support base 40. Furthermore, the lateral orientation of the tool magazine base 10 is perpendicular or approximately perpendicular to the centerline 15 of the tool magazine base 10.
[0048] The above-disclosed examples are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall fall within the scope of the present utility model.
Claims
1. A tool magazine for a CNC machine tool, characterized in that, The device includes a tool magazine base, a tool clamping mechanism, and a cover. The tool magazine base has multiple spaced-apart tool storage cavities for inserting or removing tools from the side of the tool magazine base, and mounting slots arranged opposite to each tool storage cavity. The mounting slots communicate with the tool storage cavities and extend through a first end face of the tool magazine base. The tool clamping mechanism includes elastic elements and circular clamping posts each assembled in the mounting slot. The circular clamping posts extend along the direction through the first end face of the mounting slot and can rotate about the axis of the circular clamping posts. The circular clamping posts also elastically abut against the elastic elements. Under the drive of the elastic elements, the circular clamping posts partially protrude from the tool storage cavities. The cover is assembled on the tool magazine base and covers the opening of the mounting slot on the first end face.
2. The tool magazine for CNC machine tools according to claim 1, characterized in that, The tool magazine base is provided with a limiting structure that protrudes laterally into the mounting groove. When the limiting structure protrudes partially from the circular tool clamping column into the tool storage cavity, it cooperates with the circular tool clamping column to block it. The limiting structure protrudes from the mounting groove on one side and is arranged adjacent to the tool storage cavity.
3. The tool magazine for CNC machine tools according to claim 1, characterized in that, The cover is stacked on the first end face of the tool magazine base, and the cover is detachably assembled with the tool magazine base by means of fasteners; each tool storage cavity corresponds to two mounting slots.
4. The tool magazine for CNC machine tools according to claim 1, characterized in that, The outer contour of the tool magazine base is an intermittent circle formed by the tool storage cavities. All the tool storage cavities are arranged in a circle around the circumference of the tool magazine base. The mounting groove and the elastic element extend in an arc around the center line of the tool magazine base. The outer contour of the cover is an intermittent circle that matches the tool magazine base. The elastic element is a compression spring.
5. The tool magazine for CNC machine tools according to claim 1, characterized in that, It also includes a support base for assembling and fixing the tool magazine base, and a first protective cover that can rotate relative to the support base to an open position and a closed position. When rotated to the closed position, the first protective cover and the support base together define a closed space that closes the tool magazine base, the tool clamping mechanism and the cover.
6. The tool magazine for CNC machine tools according to claim 5, characterized in that, It also includes a rotary drive mechanism for driving the first protective cover to rotate, the rotary drive mechanism being mounted on the end of the support base opposite to the tool magazine base.
7. The tool magazine for CNC machine tools according to claim 6, characterized in that, The rotary drive mechanism includes a gear, a rack, a rotating shaft, and a linear actuator that uses gas or liquid as the working medium. The end of the support base opposite to the tool magazine base has a mounting cavity for the gear and the rotating shaft. The end of the rotating shaft extends out of the side wall of the mounting cavity from the support base and is assembled and connected to the first protective cover. The gear is fixedly mounted on the rotating shaft, and the rack is assembled at the output end of the linear actuator. The rack also meshes with the gear.
8. The tool magazine for CNC machine tools according to claim 7, characterized in that, It also includes a second protective cover, which is mounted on the end of the support base opposite to the tool magazine base. The second protective cover also covers the linear actuator, gear, rack, rotating shaft and mounting cavity; the linear actuator is a cylinder or hydraulic cylinder.
9. The tool magazine for CNC machine tools according to claim 5, characterized in that, It also includes an external support for assembling and fixing the bearing base, the external support having a clearance space for the first protective cover to be screwed out of the external support when rotating to the closed position or screwed into the external support when rotating to the open / closed position; the bearing base is provided with a dust removal brush or dust removal adhesive that cooperates with the first protective cover to remove dust from inside the first protective cover; the first protective cover is a transparent protective cover, and the first protective cover also extends in an arc around the rotation center line of the first protective cover.
10. The tool magazine for CNC machine tools according to claim 5, characterized in that, It also includes an auxiliary mechanism installed on the support base and located beside the tool magazine base; the auxiliary mechanism includes a mechanism body, a dust removal channel opened in the mechanism body, and a tool dressing wheel or tool setting device installed on the mechanism body. The mechanism body is provided with an air inlet connector communicating with the dust removal channel and an inclined surface opposite to the outlet of the dust removal channel. The extended surface of the inclined surface intersects with the tool dressing surface of the tool dressing wheel or the tool setting surface of the tool setting device.