Protective tool magazine for numerical control machine tool and numerical control machine tool with same

Abstract

The utility model discloses a protection type tool magazine for a numerical control machine tool. The protection type tool magazine comprises a base, a tool holder, a cover body, an opening and closing connecting rod, a rotating shaft, a pivot swing sliding block and a guide body located in the cover body. The rotating shaft is rotatably assembled on the base. The first end of the opening-closing connecting rod is fixed to the rotating shaft, and the second end of the opening-closing connecting rod is pivoted to the side wall of the cover body. The first end of the pivot swinging sliding block is pivoted with the base, the second end of the pivot swinging sliding block is arranged on the guiding body in a sliding mode, and the tail end of the guiding body is fixedly connected with the cover body. And the rotating shaft drives the opening and closing connecting rod to link the cover body and the guide body to move together in the rotating process, so that the cover body is opened and closed relative to the base in the process that the guide body drives the pivot swinging sliding block to pivot and slide along the guide body. According to the protection type tool magazine for the numerical control machine tool, the cover body is smooth and reliable in opening and closing movement, the occupied space is small in the opening and closing movement process, and the protection type tool magazine is suitable for occasions with small occupied space. In addition, the utility model further discloses the numerical control machine tool which comprises the protective tool magazine for the numerical control machine tool and the machine tool spindle.

Description

Technical Field

[0001] The utility model relates to a tool magazine, in particular to a protective tool magazine for numerical control machines and a numerical control machine tool with the tool magazine. Background Art

[0002] As we all know, in CNC machine tools, especially in precision engraving machines, the use of tool magazines is indispensable. By storing different types of tools in the tool magazine, it is convenient for the tool change operation of the machine tool spindle. Therefore, it is very necessary to configure a tool magazine on the CNC machine tool.

[0003] For example, in Chinese patent application No. 201220239508.3, a straight-shank tool magazine of a precision engraving machine and a precision engraving machine having the straight-shank tool magazine, the tool magazine cover is installed at the output end of a rotating cylinder and is driven by the rotating cylinder to perform opening and closing movements, so that the tool magazine cover occupies a large space during the opening and closing movement, thereby making the straight-shank tool magazine of the precision engraving machine unable to adapt to occasions with smaller spaces; in addition, since the tool magazine cover is only supported by the output end of the rotating cylinder, the tool magazine cover also has the defect of shaking and being unreliable during rotation.

[0004] Therefore, there is a need for a protective tool magazine for a CNC machine tool and a CNC machine tool having the tool magazine to overcome the above-mentioned defects. Utility Model Content

[0005] One purpose of the utility model is to provide a protective tool magazine for a numerically controlled machine tool, so that the cover body can open and close smoothly and reliably and occupies little space during the opening and closing process, thereby being adaptable to occasions where a small space is occupied.

[0006] Another object of the utility model is to provide a numerically controlled machine tool, which enables the cover to open and close smoothly and reliably and occupies little space during the opening and closing process.

[0007] In order to achieve the above-mentioned purpose, the protective tool magazine for CNC machine tools of the utility model includes a base, a tool clamp, a cover body, an opening and closing connecting rod, a rotating shaft, a pivoting slider and a guide body located in the cover body. The tool clamp is assembled on the base and exposed to the outside from the top of the base, the cover body covers the base from the top of the base to cover the tool clamp, and the rotating shaft is rotatably assembled on the base. The first end of the opening and closing connecting rod is fixed on the rotating shaft, and the second end of the opening and closing connecting rod is pivotally connected to the side wall of the cover body to form a first pivot line. The first end of the pivoting slider is pivotally connected to the base to form a second pivot line, and the second pivot line, the first pivot line and the axis of the rotating shaft are parallel. The second end of the pivoting slider is slidably arranged on the guide body, and the end of the guide body is fixedly connected to the cover body. During the rotation process, the rotating shaft drives the opening and closing connecting rod to link the cover body and the guide body to move together, so that the cover body opens and closes relative to the base when the guide body drives the pivoting slider to pivot around the second pivot line and slide along the guide body.

[0008] Compared with the prior art, with the help of the cooperation of the opening and closing connecting rod, the rotating shaft, the pivoting slider and the guide body, the cover body is supported by the opening and closing connecting rod and the pivoting slider. Therefore, during the rotation of the rotating shaft, the rotating rotating shaft drives the opening and closing connecting rod to link the cover body and the guide body to move together, so that the cover body opens and closes relative to the base in the process that the guide body drives the pivoting slider to pivot around the second pivot line and slide along the guide body. On the one hand, the opening and closing movement of the cover body is smoother and more reliable, and on the other hand, the space occupied by the cover body during the opening and closing movement is small. Therefore, the protective tool magazine for CNC machine tools of the utility model can adapt to occasions where a small space is occupied.

[0009] Preferably, the base includes a base body and a mounting seat for mounting the tool holder, the upper end of the base body has an annular lateral wall for cooperating with the cover body in opening and closing, the mounting seat is located in the space surrounded by the lateral wall, the mounting seat is also assembled and connected to the base body, the rotating shaft is rotatably assembled on the mounting seat, the first end of the opening and closing connecting rod is located between the mounting seat and the lateral wall, the second end of the opening and closing connecting rod is located in the cover body, and the first end of the pivoting slider is pivotally connected to the mounting seat.

[0010] Preferably, the position of the opening and closing connecting rod between the first pivot line and the rotation axis is an arc-shaped curved section protruding in a direction away from the pivoting slider; and the cover body is flush with the lateral surrounding wall after being closed.

[0011] Preferably, the pivotable slider is pivotally connected to the side of the mounting seat facing away from the inlet and outlet of the tool holder, and the mounting seat is also provided with a lateral avoidance channel laterally connected to the inlet and outlet of the tool holder, and the base body is provided with upper and lower avoidance channels vertically connected to the space enclosed by the lateral wall.

[0012] Preferably, the mounting seat is provided with a first control channel, a second control channel and a control chamber for controlling the rotating shaft to rotate forward and reverse within a range less than or equal to 180 degrees, and the rotating shaft is radially protruded with a piston block located in the control chamber and sealingly matched with the lateral chamber wall of the control chamber, the first control channel and the second control channel are both connected to the control chamber, and the first control channel and the second control channel are configured to be used for introducing working gas or working liquid, and the base substrate is provided with a first external joint for connecting with the first control channel and a second external joint for connecting with the second control channel.

[0013] Preferably, the lateral cavity wall surface of the control cavity includes a first circular arc cavity wall surface, a second circular arc cavity wall surface, a third circular arc cavity wall surface and a fourth circular arc cavity wall surface in sequence along the rotation direction of the rotating shaft, the arc centers of the first circular arc cavity wall surface and the third circular arc cavity wall surface are located on the axial center line of the rotating shaft, the arc diameter of the first circular arc cavity wall surface matches the radius of the rotating shaft, the rotating shaft is rotatably matched with the first circular arc cavity wall surface, the piston block is sealingly matched with the third circular arc cavity wall surface, the first control channel passes through the second circular arc cavity wall surface, and the second control channel passes through the fourth circular arc cavity wall.

[0014] Preferably, the lateral cavity wall surface of the control cavity further includes a first inclined cavity wall surface connected between the first circular arc cavity wall surface and the second circular arc cavity wall surface and a second inclined cavity wall surface connected between the first circular arc cavity wall surface and the fourth circular arc cavity wall surface. The piston block is located between the first inclined cavity wall surface and the second inclined cavity wall surface along the rotation direction of the rotating shaft. The rotation angle of the rotating shaft is controlled by means of the blocking of the piston block by the first inclined cavity wall surface and the blocking of the piston block by the second inclined cavity wall surface.

[0015] Preferably, the second arc cavity wall is adjacent to the piston block when the piston block blocks the first inclined cavity wall, and the fourth arc cavity wall is adjacent to the piston block when the piston block blocks the second inclined cavity wall.

[0016] Preferably, the tool clamp is detachably arranged, and is a plurality of tool clamps arranged axially apart from each other along the rotating shaft. The tool clamp comprises a clamp seat, a first clamp block, a second clamp block and an annular retaining spring with an open opening. One end of the first clamp block and the second clamp block are pivotally connected to the clamp seat, and the other ends of the first clamp block and the second clamp block are engaged in opening and closing and jointly define an inlet and outlet. The annular retaining spring is simultaneously buckled on the first clamp block, the clamp seat and the second clamp block.

[0017] To achieve the above-mentioned purpose, the CNC machine tool of the utility model includes a machine tool spindle and the aforementioned protective tool magazine for the CNC machine tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The utility model is a three-dimensional diagram of a CNC machine tool with a protective tool magazine for CNC machine tools when the cover is in an open state.

[0019] Figure 2 yes Figure 1 A diagram showing the protective tool magazine for CNC machine tools in the state when the base body is downward and separated from the mounting base.

[0020] Figure 3 yes Figure 2 A diagram showing the state at another angle with the cover separated.

[0021] Figure 4 The utility model is a plan view of a mounting seat in a protective tool magazine for a numerically controlled machine tool viewed from top to bottom.

[0022] Figure 5 is along Figure 4 The internal state diagram when the piston block is blocked by the wall of the second inclined chamber along the EE line.

[0023] Figure 6 is Figure 5 The internal state diagram when the piston block blocks the first inclined cavity wall is shown above.

[0024] Figure 7 The utility model is a three-dimensional diagram of a tool holder in a protective tool magazine for a numerically controlled machine tool.

[0025] Figure 8 yes Figure 7 A perspective view of the tool holder shown at another angle.

[0026] Fig. 9 It is a three-dimensional diagram showing the tool holder clamping the tool.

[0027] Fig.10 It is a three-dimensional diagram showing the tool holder clamping the tool handle with the tool mounted thereon.

[0028] Fig.11It is a stereoscopic diagram of a rotating shaft in a protective tool magazine for a CNC machine tool of the utility model.

[0029] Fig.12 The utility model is a state diagram showing the protective tool magazine for CNC machine tools when the cover is in an open state.

[0030] Fig.13 yes Fig.12 The protective tool magazine for CNC machine tools in the state shown is in the state when the cover moves to a certain intermediate position in the clockwise direction.

[0031] Fig.14 yes Fig.13 The protective tool magazine for CNC machine tools in the state shown is in the state when the cover body continues to move in the clockwise direction to the state of covering the base. DETAILED DESCRIPTION

[0032] In order to explain the technical content and structural features of the present invention in detail, further description will be given below in combination with the embodiments and the accompanying drawings.

[0033] See also Figure 1 The CNC machine tool 100 of the present invention includes a protective tool magazine 100 for CNC machine tools and a machine tool spindle 200. Since the relationship between the machine tool spindle 200 and the protective tool magazine 100 for CNC machine tools and the operation of the machine tool spindle 200 storing and accessing tools 300 on the protective tool magazine 100 for CNC machine tools are well known in the art, they will not be described in detail here.

[0034] Recombination Figure 2 and Figure 3 The protective tool magazine 100 for CNC machine tools includes a base 10, a tool holder 20, a cover body 30, an opening and closing connecting rod 40, a rotating shaft 50, a pivoting slider 60 and a guide body 70 located in the cover body 30. The tool holder 20 is assembled on the base 10, and the base 10 provides support for the tool holder 20; the tool holder 20 is also exposed to the outside from the top of the base 10, so that the machine tool spindle 200 can access the tool 300 directly or indirectly clamped by the tool holder 20. The cover body 30 covers the base 10 from above the base 10, so that when the cover body 30 covers the base 10, the tool holder 20 is covered by the cover body 30; and because the tool 300 is directly or indirectly clamped by the tool holder 20, the cover body 30 also covers the tool 300 when it is covered on the base 10, as shown in the state. Fig.14 shown.

[0035] The rotating shaft 50 is rotatably mounted on the base 10 to meet the need that the rotating shaft 50 can rotate relative to the base 10. The first end 41 of the opening and closing link 40 is fixed on the rotating shaft 50 to meet the need that the rotating shaft 50 can drive the opening and closing link 40 to move during the rotation process; the second end 42 of the opening and closing link 40 is pivotally connected to the side wall 31 of the cover body 30 to form a first pivot line C1. The first end of the pivoting slider 60 is pivotally connected to the base 10 to form a second pivot line C2. The second pivot line C2, the first pivot line C1 and the axis C3 of the rotating shaft 50 are parallel to ensure the smoothness of the opening and closing movement of the cover body 30; optionally, Figure 2 As an example, the directions of the second pivot line C2, the first pivot line C1 and the axis C3 of the rotating shaft 50 are all the length direction of the base 10 (i.e. the direction indicated by the arrow A and the opposite direction); the second end of the pivot slider 60 is slidably disposed on the guide body 70, and the end of the guide body 70 is fixedly connected to the cover body 30. Therefore, during the rotation of the rotating shaft 50, the rotating rotating shaft 50 drives the opening and closing connecting rod 40 to link the cover body 30 and the guide body 70 to move together, so that the cover body 30 is opened and closed relative to the base 10 during the process in which the guide body 70 drives the pivot slider 60 to pivot around the second pivot line C2 and slide along the guide body 70, so that the space occupied by the cover body 30 during the opening and closing movement is small, and the state is shown in FIG. Figure 12 to Figure 14 It should be noted that, here, “the guide body 70 drives the pivoting slider 60 to pivot about the second pivot line C2 and slide along the guide body 70” means that the guide body 70 drives the pivoting slider 60 to pivot about the second pivot line C2 and also drives the pivoting slider 60 to slide along the guide body 70. More specifically, as follows:

[0036] like Figures 1 to 3 As shown, as an example, the base 10 includes a base body 10a and a mounting seat 10b for mounting the tool holder 20. The upper end of the base body 10a has an annular lateral surrounding wall 11 for opening and closing with the cover body 30. The mounting seat 10b is located in a space 12 surrounded by the lateral surrounding wall 11, and the mounting seat 10b is surrounded by the lateral surrounding wall 11 from the side. Figure 1 and Figure 2 As an example, the lateral surrounding wall 11 surrounds the mounting seat 10b in the length direction and the width direction of the base 10 (i.e., the direction indicated by the arrow B and the opposite direction), so that when the cover body 30 and the lateral surrounding wall 11 are covered, the cover body 30 and the base base 10a are used to close the tool holder 20, as shown in the state Fig.14As shown. At the same time, the mounting seat 10b is also assembled and connected with the base matrix 10a, so that the mounting seat 10b and the base matrix 10a are assembled together. At this time, the rotating shaft 50 is rotatably assembled on the mounting seat 10b, the first end 41 of the opening and closing link 40 is located between the mounting seat 10a and the lateral surrounding wall 11, the second end 42 of the opening and closing link 40 is located in the cover body 30, and the first end of the pivoting slider 60 is pivotally connected to the mounting seat 10b; the purpose of such a design is to also seal the opening and closing link 40 and the pivoting slider 60 in the cover body 30 and the base matrix 10a when the cover body 30 is covered on the lateral surrounding wall 11, so as to more effectively prevent the external cutting fluid and the like from polluting the opening and closing link 40 and the pivoting slider 60, thereby effectively extending the service life of the protective tool magazine 100 for CNC machine tools of the utility model. Specifically, in Figures 1 to 3 In the embodiment, as an example, the opening and closing link 40 is located between the first pivot line C1 and the rotation axis 50 as an arc-shaped curved section 43 that bulges away from the pivoting slider 60, so that the opening and closing link 40 can better avoid the lateral surrounding wall 11 during the opening and closing movement of the cover 30 by means of the arc-shaped curved section 43, thereby further making the cover 30 occupy less space during the opening and closing movement. In addition, the cover 30 is flush with the lateral surrounding wall 11 after closing, and the flush here means that it is flush with the lateral surrounding wall 11 in the length direction and width direction of the base 10, so that the cover 30 is more concise with the base 10 after closing, avoiding the occurrence of unevenness between the cover 30 and the lateral surrounding wall 11. In addition, the pivoting slider 60 is pivotally connected to the side of the mounting seat 10b facing away from the inlet and outlet 25 of the tool holder 20, so that a lateral avoidance channel 13 is also provided on the mounting seat 10b and is laterally connected to the inlet and outlet 25 of the tool holder 20, and an upper and lower avoidance channel 14 is provided on the base body 10a and is vertically connected to the space 12 enclosed by the lateral wall 11, so that the lateral avoidance channel 13 and the upper and lower avoidance channels 14 cooperate to facilitate the operation of the machine tool spindle 200 to store and retrieve the tool 300 at the tool holder 20.

[0037] like Figure 5 and Figure 6 As shown, as an example, the mounting seat 10b is provided with a first control channel 15, a second control channel 16 and a control chamber 17 for controlling the rotation axis 50 to rotate forward and reverse within a range of less than or equal to 180 degrees; Figure 5 and Figure 6 As an example, the control chamber 17 is used to control the rotation shaft 50 to rotate forward and backward within a range of 108 degrees, so that when the liquid or gas with the same pressure is connected, the control chamber 17 occupies a smaller space than the control chamber of the traditional rotary cylinder. This is because the control chamber 17 does not need to control the rotation shaft 50 to make a 360-degree rotation movement; obviously, according to actual needs, the control chamber 17 can also be designed to control the rotation shaft 50 to rotate forward and backward within other angles (i.e., except 108 degrees), so it is not necessary to use Figure 5 and Figure 6 The figure is limited. Correspondingly, a piston block 51 is radially protruded from the rotating shaft 50 and is located in the control chamber 17 and is sealed with the lateral chamber wall 17a of the control chamber 17. The first control channel 15 and the second control channel 16 are both connected to the control chamber 17. The first control channel 15 and the second control channel 16 are configured to be used for passing working gas or working liquid. The base body 10a is provided with a first external joint 18 for communicating with the first control channel 15 and a second external joint 19 for communicating with the second control channel 16; therefore, when the rotating shaft 50 is to be moved from Figure 5 The status shown rotates to Figure 6 In the state shown, the external working medium (such as working gas or working liquid) enters the control chamber 17 from the second external connector 19 and the second control channel 16, so that the working medium pushes the piston block 51 to realize the rotation of the rotating shaft 50. Figure 5 The status shown rotates to Figure 6 When the rotating shaft 50 is to be Figure 6 The status shown rotates to Figure 5 In the state shown in FIG. 1 , the external working medium (such as working gas or working liquid) enters the control chamber 17 from the first external connector 18 and the first control channel 15, so that the working medium pushes the piston block 51 to realize the rotation of the rotating shaft 50. Figure 6 The status shown rotates to Figure 5 The state shown. For more specific structure of the control chamber 17, see the following description.

[0038] like Figure 5 and Figure 6 As shown, as an example, the lateral cavity wall surface 17a of the control cavity 17 includes a first arc cavity wall surface 171, a second arc cavity wall surface 172, a third arc cavity wall surface 173 and a fourth arc cavity wall surface 174 in sequence along the rotation direction of the rotating shaft 50. The arc centers of the first arc cavity wall surface 171 and the third arc cavity wall surface 173 are located on the axial center line C3 of the rotating shaft 50, and the arc diameter of the first arc cavity wall surface 171 matches the radius of the rotating shaft 50 to meet the need for the rotating shaft 50 to cooperate with the first arc cavity wall surface 171. The piston block 51 is sealed with the third arc cavity wall surface 173 to prevent the working medium entering the control cavity 17 from leaking from the cooperation between the piston block 51 and the third arc cavity wall surface 173; optionally, in combination with Figure 5 , Figure 6 and Fig.11As an example, an embedding groove 511 is provided at the end of the piston block 51, and the sealing member 52 is embedded in the embedding groove 511 and radially protrudes from the piston block 51, so that the piston block 51 is sealed with the third arc cavity wall surface 173 by means of the sealing member 52; obviously, according to actual needs, the sealing cooperation mode between the piston block 51 and the third arc cavity wall surface 173 can also be other modes, so it is not used here. Figure 5 and Figure 6 At this time, the first control channel 15 penetrates the second arc cavity wall 172, and the second control channel 16 penetrates the fourth arc cavity wall 173. Figure 5 and Figure 6 As an example, the lateral cavity wall surface 17a of the control cavity 17 further includes a first inclined cavity wall surface 175 connected between the first arc cavity wall surface 171 and the second arc cavity wall surface 172 and a second inclined cavity wall surface 176 connected between the first arc cavity wall surface 171 and the fourth arc cavity wall surface 174, and the piston block 51 is located between the first inclined cavity wall surface 175 and the second inclined cavity wall surface 176 along the rotation direction of the rotation shaft 50; therefore, the rotation angle of the rotation shaft 50 is controlled by blocking the piston block 51 with the first inclined cavity wall surface 175 and blocking the piston block 51 with the second inclined cavity wall surface 176; optionally, in combination with Figure 5 and Figure 6 As an example, the second arc cavity wall 172 is adjacent to the piston block 51 when the piston block 51 is blocked by the first inclined cavity wall 175, and the fourth arc cavity wall 174 is adjacent to the piston block 51 when the piston block 51 is blocked by the second inclined cavity wall 176, so as to more effectively ensure the reliability of the working medium entering from the first control channel 15 or the second control channel 16 to push the piston block 51 to drive the rotating shaft 50 to rotate, and also ensure the stability of the cover body 30 when it is opened or closed.

[0039] like Figures 1 to 3 As shown in FIG. 1 , as an example, four tool holders 20 are arranged in a spaced relationship along the axial direction of the rotating shaft 50 (in the direction indicated by arrow A and in the opposite direction), so that the protective tool magazine 100 for CNC machine tools of the present invention can store four tools 300 at a time; obviously, according to actual needs, the number of tool holders 20 can also be two, three, five or six, so it is not limited to the number of tool holders 20. Figures 1 to 3 In addition, the tool holder 20 is also detachable, so that the operator can replace the tool holder 20 of the same type or different types according to actual needs. Figures 7 and 8As an example, the tool clamp 20 includes a clamp seat 21, a first clamp block 22, a second clamp block 23 and an annular retaining spring 24 with an open mouth 241; one end of the first clamp block 22 is pivotally connected to the clamp seat 21 to form a first pivot point 221, one end of the second clamp block 23 is pivotally connected to the clamp seat 21 to form a second pivot point 231, the other ends of the first clamp block 22 and the second clamp block 23 are opened and closed and jointly define an inlet and outlet 25; the annular retaining spring 24 is simultaneously buckled on the first clamp block 22, the clamp seat 21 and the second clamp block 23; such a design can simplify the structure of the tool clamp 20, and can also ensure the stability of the first clamp block 22 and the second clamp block 23 to clamp the tool 300 or the tool handle 400 with the tool 300; wherein, the state of the tool clamp 20 directly clamping the tool 300 is shown in FIG. Fig. 9 As shown, the state of the tool 20 clamping the tool handle 400 with the tool 300 is shown in Fig.10 shown.

[0040] Compared with the prior art, with the cooperation of the opening and closing connecting rod 40, the rotating shaft 50, the pivoting slider 60 and the guide body 70, the cover body 30 is supported by the opening and closing connecting rod 40 and the pivoting slider 60. Therefore, during the rotation of the rotating shaft 50, the rotating rotating shaft 50 drives the opening and closing connecting rod 40 to link the cover body 30 and the guide body 70 to move together, so that the cover body 30 is opened and closed relative to the base 10 in the process that the guide body 70 drives the pivoting slider 60 to pivot around the second pivot line C2 and slide along the guide body 70. On the one hand, the opening and closing movement of the cover body 30 is smoother and more reliable, and on the other hand, the space occupied by the cover body 30 during the opening and closing movement is small. Therefore, the protective tool magazine 100 for CNC machine tools of the present invention can be adapted to occasions where a smaller space is occupied.

[0041] It is worth noting that although Figures 1 to 4 The mounting seat 10b is shown as being provided with a rotating shaft 50 and an opening and closing connecting rod 40 at both ends separated in the length direction of the base 10, so that the mounting seat 10b supports the corresponding side walls 31 of the cover 30 through the rotating shaft 50 and the opening and closing connecting rod 40 at both ends separated in the length direction. Figure 1 and Figure 2 As shown. Since the mounting seat 10b is provided with a rotating shaft 50 and an opening and closing connecting rod 40 at both ends separated in the length direction, correspondingly, the mounting seat 10b is provided with a control cavity 17, a first control channel 15 and a second control channel 16 at both ends separated in the length direction; obviously, according to actual needs, the mounting seat 10b may be provided with a rotating shaft 50 and an opening and closing connecting rod 40 at only one of the two ends separated in the length direction, so it is not necessary to Figures 1 to 4 In addition, although Figures 1 to 3The number of the guide body 70 and the pivoting slider 60 is shown to be two. Obviously, according to actual needs, the number of the guide body 70 and the pivoting slider 60 can also be one, three or four. Figures 1 to 3 The figure is shown as a limitation. In addition, the numerical control machine tool 1000 of the utility model can be a precision engraving machine, and of course, it can also be other program-controlled machine tools except the precision engraving machine. Furthermore, since the first end 41 of the opening and closing connecting rod 40 is fixedly connected to the end of the rotating shaft 50, and the end is passed through the mounting seat 10b, the position where the mounting seat 10b is passed through by the rotating shaft 50 and the rotating shaft 50 are sealed, so the rotating shaft 50 and the piston block 51 can be regarded as the rotating piston in the existing rotating cylinder or rotating liquid cylinder, and the mounting seat 10b can be regarded as the cylinder body in the existing rotating cylinder or rotating liquid cylinder, so the sealing cooperation between the mounting seat 10b and the rotating shaft 50 and the piston block 51 can refer to the sealing cooperation between the rotating piston and the cylinder body in the existing rotating cylinder or rotating liquid cylinder, so it will not be repeated here. Finally, since the first external joint 18 and the second external joint 19 are located outside the base substrate 10a, in order to better connect the first external joint 18 with the first control channel 15, and the second external joint 19 with the second control channel 16, a first intermediate channel for connecting the first external joint 18 and the first control channel 15 and a second intermediate channel for connecting the second external joint 19 and the second control channel 16 may be opened in the base substrate 10a; wherein, how to open and the direction of the first intermediate channel and the second intermediate channel are flexibly selected according to actual needs, so they will not be repeated here.

[0042] The above disclosure is only a preferred example of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. A protective tool magazine for a CNC machine tool, comprising a base, a tool holder mounted on the base and exposed to the outside from above the base, and a cover body covering the base from above the base to cover the tool holder, characterized in that: The protective tool magazine for CNC machine tools also includes an opening and closing connecting rod, a rotating shaft, a pivoting slider and a guide body located in the cover body. The rotating shaft can be rotatably assembled on the base, and the first end of the opening and closing connecting rod is fixed on the rotating shaft, and the second end of the opening and closing connecting rod is pivotally connected to the side wall of the cover body to form a first pivot line, and the first end of the pivoting slider is pivotally connected to the base to form a second pivot line, the second pivot line, the first pivot line and the axial line of the rotating shaft are parallel, the second end of the pivoting slider is slidably disposed on the guide body, and the end of the guide body is fixedly connected to the cover body, and the rotating shaft drives the opening and closing connecting rod to link the cover body and the guide body to move together during the rotation process, so that the cover body opens and closes relative to the base during the process in which the guide body drives the pivoting slider to pivot around the second pivot line and slide along the guide body.

2. The protective tool magazine for CNC machine tools according to claim 1, characterized in that: The base includes a base body and a mounting seat for mounting the tool holder, the upper end of the base body has an annular lateral wall for cooperating with the cover body for opening and closing, the mounting seat is located in the space surrounded by the lateral wall, the mounting seat is also assembled and connected to the base body, the rotating shaft is rotatably assembled on the mounting seat, the first end of the opening and closing connecting rod is located between the mounting seat and the lateral wall, the second end of the opening and closing connecting rod is located in the cover body, and the first end of the pivoting slider is pivotally connected to the mounting seat.

3. The protective tool magazine for CNC machine tools according to claim 2, characterized in that: The position of the opening and closing connecting rod between the first pivot line and the rotation axis is an arc-shaped curved section protruding in a direction away from the pivoting sliding block; the cover body is flush with the lateral surrounding wall after being closed.

4. The protective tool magazine for CNC machine tools according to claim 2, characterized in that: The pivoting slider is pivotally connected to the side of the mounting seat facing away from the inlet and outlet of the tool holder. The mounting seat is also provided with a lateral avoidance channel laterally connected to the inlet and outlet of the tool holder. The base body is provided with an upper and lower avoidance channel vertically connected to the space enclosed by the lateral surrounding wall.

5. The protective tool magazine for CNC machine tools according to claim 2, characterized in that: The mounting seat is provided with a first control channel, a second control channel and a control chamber for controlling the rotating shaft to rotate forward and reverse within a range of less than or equal to 180 degrees. A piston block radially protrudes from the rotating shaft and is located in the control chamber and seals with the lateral chamber wall of the control chamber. The first control channel and the second control channel are both connected to the control chamber. The first control channel and the second control channel are configured to be used for introducing working gas or working liquid. A first external joint for connecting with the first control channel and a second external joint for connecting with the second control channel are provided outside the base.

6. The protective tool magazine for CNC machine tools according to claim 5, characterized in that: The lateral cavity wall surface of the control cavity includes a first circular arc cavity wall surface, a second circular arc cavity wall surface, a third circular arc cavity wall surface and a fourth circular arc cavity wall surface in sequence along the rotation direction of the rotating shaft, the arc centers of the first circular arc cavity wall surface and the third circular arc cavity wall surface are located on the axial center line of the rotating shaft, the arc diameter of the first circular arc cavity wall surface matches the radius of the rotating shaft, the rotating shaft rotates in cooperation with the first circular arc cavity wall surface, the piston block is sealingly cooperated with the third circular arc cavity wall surface, the first control channel passes through the second circular arc cavity wall surface, and the second control channel passes through the fourth circular arc cavity wall surface.

7. The protective tool magazine for CNC machine tools according to claim 6, characterized in that: The lateral cavity wall surface of the control cavity further includes a first inclined cavity wall surface connected between the first circular arc cavity wall surface and the second circular arc cavity wall surface and a second inclined cavity wall surface connected between the first circular arc cavity wall surface and the fourth circular arc cavity wall surface. The piston block is located between the first inclined cavity wall surface and the second inclined cavity wall surface along the rotation direction of the rotating shaft. The rotation angle of the rotating shaft is controlled by means of the blocking of the piston block by the first inclined cavity wall surface and the blocking of the piston block by the second inclined cavity wall surface.

8. The protective tool magazine for CNC machine tools according to claim 7, characterized in that: The second arc cavity wall is adjacent to the piston block when the piston block blocks the first inclined cavity wall, and the fourth arc cavity wall is adjacent to the piston block when the piston block blocks the second inclined cavity wall.

9. The protective tool magazine for CNC machine tools according to claim 1, characterized in that: The tool clamp is arranged in a detachable manner. The tool clamp is a plurality of tool clamps arranged axially apart from each other along the rotating shaft. The tool clamp comprises a clamp seat, a first clamp block, a second clamp block and an annular retaining spring with an open opening. One end of the first clamp block and the second clamp block are pivotally connected to the clamp seat, and the other ends of the first clamp block and the second clamp block are opened and closed to cooperate and jointly define an inlet and outlet. The annular retaining spring is simultaneously buckled on the first clamp block, the clamp seat and the second clamp block.

10. A numerically controlled machine tool, comprising a machine tool spindle, characterized in that: The CNC machine tool also includes a protective tool magazine for the CNC machine tool according to any one of claims 1 to 9.

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