A tool magazine system for flexible production line

Abstract

The present invention discloses a tool magazine system for a flexible production line, which relates to the technical field of tool magazines in numerical control machining centers, and includes a numerical control turntable, the numerical control turntable is provided with a notch for extending a tool, the numerical control turntable is rotatably connected to a tool changer, the tool changer is slidably connected to a circumferentially distributed slide, the slide is rotatably connected to a placement rack for placing tools, the slide is fixedly connected to a magnetic rack, and the tool changer is fixedly connected to two electromagnets. The present invention realizes precise positioning of the tool through the cooperation of the electromagnet and the magnetic block, which is convenient for the manipulator to accurately grasp the tool, avoids the situation of mistaking the tool, improves the tool change accuracy, and can conveniently adjust the distance of the tool extension by adjusting the position of the ring frame and the clamping teeth to meet different processing requirements. In addition, by making components such as electromagnets independent of the tool changer, problems such as line winding are avoided, and the reliability and maintenance convenience of the equipment are improved.

Description

Technical Field

[0001] The invention relates to the technical field of tool magazines for numerical control machining centers, and in particular to a tool magazine system for a flexible production line. Background Art

[0002] The tool system for flexible production lines is an automated production equipment component that is integrated on processing equipment such as CNC machine tools. It can quickly and automatically replace tools with different functions or wear, ensuring a continuous and efficient production process. It can adapt to the flexible production needs of multiple varieties and small batches, and improve the flexibility and production efficiency of the overall production line.

[0003] When modern CNC machine tools are in use, ordinary tool holders only provide mechanical rotation of the tool magazine, and the required tools are replaced by robots or other mechanical devices. In order to save space in the tool magazine, all tools are kept compactly arranged, and there is a lack of obvious highlighting between the tools. As a result, in the automatic tool changing process, due to the highly similar shapes of the tools, it is difficult to visually check them without extending them individually, making it difficult to immediately confirm whether they are accurately grasped. At the same time, the space layout is compact, and unnecessary contact with the machine tool body is easy to occur in the event of an erroneous action, threatening the accuracy and safe operation of the equipment.

[0004] Based on the above situation, the present invention proposes a tool magazine system for a flexible production line. Summary of the invention

[0005] In order to overcome the disadvantage that the tools are compact and it is easy to take the wrong tools during the tool changing process, the present invention provides a tool magazine system for a flexible production line.

[0006] Disclosed is a tool magazine system for a flexible production line, comprising a numerical control turntable, the numerical control turntable having a notch for extending a tool, the numerical control turntable being rotatably connected to a tool changer, the numerical control turntable controlling the rotation of the tool changer through a numerical control system, the tool changer being slidably connected to a circumferentially distributed slide, the slide being rotatably connected to a placement rack for placing tools, a first spring being fixedly connected between the slide and the tool changer, the slide being fixedly connected to a magnetic rack, the tool changer being fixedly connected to two electromagnets, an instruction for controlling the on and off power of the electromagnets being added to a numerical control program, so that the numerical control turntable controlling the on and off power of the electromagnets through the numerical control system, the electromagnet being fixedly connected to a fixed rod, the fixed rod being slidably connected to a first magnetic block, When energized, the electromagnet cooperates with the adjacent first magnetic block through repulsive magnetic forces, the fixed rod is slidably connected with a slide plate, the slide plate is fixedly connected with the adjacent first magnetic block, a ring frame is slidably connected between the two slide plates, the slide plate is slidably connected with a clamping rod, the side of the ring frame close to the adjacent clamping rod is fixedly connected with a clamping tooth, the clamping tooth and the adjacent clamping rod are mutually clamped, a second spring is fixedly connected between the clamping rod and the adjacent slide plate, a rotating frame is provided on the side of the ring frame close to the notch of the CNC turntable, the rotating frame is fixedly connected with the second magnetic block, when the magnetic frame rotates to the second magnetic block, the second magnetic block and the magnetic frame are magnetically matched, and a third spring is fixedly connected between the slide plate and the adjacent fixed rod.

[0007] Preferably, it also includes a shaking frame distributed corresponding to the placement rack, the shaking frame is fixedly connected to the tool changing rack, a torsion spring is fixedly connected between the slide and the adjacent placement rack, a guide rod is fixedly connected to the side of the placement rack close to the adjacent shaking frame, and the guide rod is limitedly matched with the adjacent shaking frame.

[0008] Preferably, the shaking frame is configured to be C-shaped, and a plurality of semicircular grooves are formed on the upper side of the shaking frame, and when the guide rod moves to correspond to the semicircular grooves, the torsion spring is reset.

[0009] Preferably, it further comprises clamping blocks symmetrically distributed along adjacent magnetic racks, wherein the clamping blocks are slidably connected to the tool changing rack and are used to limit the adjacent magnetic racks.

[0010] Preferably, it also includes a ring-shaped guide frame, which is slidably connected to the tool changer, and the guide frame is slidably connected to the adjacent block via an inclined groove. At least one fourth spring is fixedly connected between the guide frame and the tool changer, and a pressing frame for squeezing the guide frame is fixedly connected to the side of the CNC turntable close to the turntable. The end face of the pressing frame close to the guide frame is set as an arc surface, and the guide frame is squeezed and matched with the arc surface of the pressing frame when it rotates.

[0011] Preferably, the ring frame and the rotating frame are connected via damping rotation.

[0012] Preferably, it further includes a guide plate, which is slidably connected to the CNC turntable, and the guide plate is slidably connected to the ring frame. A rotating rod is fixedly connected to one side of the rotating frame close to the guide plate, and the rotating rod is limitedly matched with the guide plate.

[0013] Preferably, a guide groove for guiding the rotating rod is formed on a side of the guide plate close to the rotating rod.

[0014] Preferably, it further comprises a baffle symmetrically distributed along the ring frame, wherein the baffle is fixedly connected to the CNC turntable, and the baffle is used to limit the distance adjustment of the second magnetic block in a working state.

[0015] Preferably, the retaining frame is composed of a straight plate and a curved plate, the straight plate is fixedly connected to the CNC turntable, the curved plate is fixedly connected to the straight plate, a gap is left between the slide plate and the straight plate for the movement of the clamping rod, and the slide plate moves upward to contact the end surface of the curved plate.

[0016] The beneficial effects of the present invention are:

[0017] The present invention realizes precise positioning of the tool through the cooperation of the electromagnet and the magnetic block, facilitates accurate grasping of the robot arm, avoids the situation of mistaking the tool, and improves the tool changing accuracy. By adjusting the position of the ring frame and the clamping teeth, the extension distance of the tool can be conveniently adjusted to meet different processing requirements. In addition, by making the electromagnet and other components independent of the tool changing frame, problems such as line winding are avoided, thereby improving the reliability and maintenance convenience of the equipment.

[0018] The present invention uses the design of a torsion spring and a guide rod to cause the tool to continuously and slightly shake during the extension process, which helps to remove tiny cutting fragments and debris attached to the tool surface or in the tool groove, avoiding surface defects or tool damage that may be caused by these residues in subsequent processing, thereby improving processing quality and tool life.

[0019] The present invention limits the magnetic frame by a clamping block before the tool is rotated into position, so as to prevent the magnetic frame from moving in advance and causing overall shaking, which affects the stability of the tool changing system; the limit is released when the tool is about to rotate into position, so as to ensure that the tool is accurately extended, thereby improving the tool changing accuracy and system reliability.

[0020] The present invention controls the rotating rod by limiting the guide plate, so that the second magnetic block is in a state of being inclined away from the magnetic frame after resetting, thereby avoiding the second magnetic block being too close to the magnetic frame and causing accidental suction; when the second magnetic block moves upward, the second magnetic block is guided by the guide plate to swing to a vertical state toward the magnetic frame, thereby ensuring accurate control of the magnetic suction force during the tool changing process.

[0021] When the slide plate moves upward to the working state, the slide plate is limited by the upper part of the blocking frame to prevent the locking rod from sliding randomly, and the distance adjustment of the second magnetic block is prohibited when the tool magazine system is in the working state. When the slide plate moves downward to reset, a gap is left between the lower part of the blocking frame and the slide plate, allowing the locking rod to slide, so that the distance of the second magnetic block can be adjusted, which is convenient for operation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0023] Figure 2 It is a three-dimensional structural schematic diagram of the components such as the CNC turntable, the tool changer and the slide of the present invention.

[0024] Figure 3 It is a three-dimensional structural schematic diagram of the slide, the first spring, the magnetic frame and other components of the present invention.

[0025] Figure 4 It is a schematic diagram of the three-dimensional structure of the ring frame, the clamping rod, the second spring and other components of the present invention.

[0026] Figure 5 It is a three-dimensional structural schematic diagram of components such as the shaking frame, torsion spring and guide rod of the present invention.

[0027] Figure 6 It is a three-dimensional structural schematic diagram of the guide frame, the clamping block and the pressing frame and other components of the present invention.

[0028] Figure 7 It is a schematic diagram of the three-dimensional structure of the guide frame, the fourth spring, the clamping block and other components of the present invention.

[0029] Figure 8 It is a schematic diagram of the three-dimensional structure of the guide frame, the fourth spring, the clamping block and the pressing frame of the present invention.

[0030] Fig. 9 It is a three-dimensional structural schematic diagram of the rotating frame, the second magnetic block, the rotating rod and other components of the present invention.

[0031] Fig.10 It is a schematic diagram of the three-dimensional structure of the rotating frame, the rotating rod and the guide plate of the present invention.

[0032] Fig.11 It is a three-dimensional structural schematic diagram of the clamping rod, the second spring, the retaining frame and other components of the present invention.

[0033] Explanation of the accompanying drawings: 1_CNC turntable, 2_tool changing rack, 3_slide, 4_placing rack, 5_first spring, 6_magnetic rack, 7_electromagnet, 8_first magnetic block, 9_slide plate, 10_ring frame, 11_clamp rod, 12_second spring, 13_rotating rack, 14_second magnetic block, 15_third spring, 16_shake frame, 17_torsion spring, 18_guide rod, 19_guide frame, 20_fourth spring, 21_clamp block, 22_pressure rack, 23_guide plate, 231_rotating rod, 24_blocking rack. DETAILED DESCRIPTION

[0034] The following descriptions are merely preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention.

[0035] Embodiment 1: A tool magazine system for a flexible production line, such as Figure 1-Figure 4 shown.

[0036] The utility model comprises a numerical control turntable 1, a notch for extending a tool is opened on one side of the numerical control turntable 1, an opening and closing door for blocking the notch of the numerical control turntable 1 can be arranged at the notch, a tool changing frame 2 is rotatably connected inside the numerical control turntable 1, the rotation of the tool changing frame 2 is controlled by the numerical control system, six circumferentially distributed slides 3 are slidably connected to the top of the tool changing frame 2, the slides 3 are rotatably connected to the placement frames 4, and each tool is firmly placed on each placement frame 4, a first spring 5 is fixedly connected between the slides 3 and the tool changing frame 2, a magnetic frame 6 is fixedly connected to the bottom of the slides 3, two electromagnets 7 are fixedly connected to the lower part of the tool changing frame 2, and instructions for controlling the power on and off of the electromagnet 7 are added to the numerical control program, so that the numerical control turntable 1 controls the power on and off of the electromagnet 7 through the numerical control system, a fixed rod is fixedly connected to the top of the electromagnet 7, and the fixed rod is slidably connected along the up and down directions A first magnetic block 8 is connected. When power is turned on, the electromagnet 7 cooperates with the adjacent first magnetic block 8 through repulsive magnetic forces. The fixed rod is slidably connected with a slide plate 9 in the up-down direction. The bottom of the slide plate 9 is fixedly connected with the adjacent first magnetic block 8. A ring frame 10 is slidably connected between the two slide plates 9 in the horizontal direction. The slide plate 9 is slidably connected with a clamping rod 11 in the front-back direction. A clamping tooth is fixedly connected to the side of the ring frame 10 close to the adjacent clamping rod 11. The clamping tooth and the adjacent clamping rod 11 are mutually engaged. A second spring 12 is fixedly connected between the clamping rod 11 and the adjacent slide plate 9. A rotating frame 13 is provided on the side of the ring frame 10 close to the notch of the CNC turntable 1. The rotating frame 13 is fixedly connected with a second magnetic block 14. When the magnetic frame 6 rotates to the second magnetic block 14, the second magnetic block 14 cooperates with the magnetic frame 6 by magnetic attraction. A third spring 15 is fixedly connected between the slide plate 9 and the adjacent fixed rod.

[0037] When using the tool magazine system of the flexible production line to change tools, start the CNC turntable 1 to control the rotation of the tool changer 2, thereby driving the slide 3 to rotate, and the slide 3 drives the tool to rotate through the placement rack 4. At the same time, the tool changer 2 also drives the first spring 5 and the magnetic rack 6 to rotate; when the CNC turntable 1 is started, the electromagnet 7 is energized, and under the action of the repulsive force, the first magnetic block 8 drives the slide plate 9 to slide upward, the third spring 15 is compressed, and the slide plate 9 drives the ring frame 10, the clamping rod 11, the second spring 12, the rotating frame 13 and the second magnetic block 14 to move upward as a whole. When the second magnetic block 14 moves upward to correspond to the magnetic rack 6 rotated to this point, under the action of the magnetic attraction force, the magnetic rack 6 drives the slide 3 fixedly connected thereto to slide to the side close to the second magnetic block 14, and the first spring 5 fixedly connected thereto is compressed, and the slide 9 fixedly connected thereto is The placement rack 4 moves to the side close to the second magnetic block 14, so that the tool rotated to the notch of the CNC turntable 1 extends outward. At this time, it can be directly observed whether it is the required tool. If it is the required tool, the manipulator accurately removes the required tool to avoid the situation of taking the tool by mistake, thereby improving the tool changing accuracy. If it is not the required tool, the magnetic rack 6 is controlled to continue to rotate away from the second magnetic block 14. Under the reset action of the first spring 5, the slide 3 drives the magnetic rack 6 to slide and reset to the side close to the center of the tool changer 2, and this is repeated until the required tool is extended, and then the CNC turntable 1 is controlled to be closed, and the electromagnet 7 is powered off at the same time. The third spring 15 drives the slide plate 9 to slide downward, and the slide plate 9 drives the first magnetic block 8, the ring frame 10, the clamping rod 11, the second spring 12, the rotating frame 13 and the second magnetic block 14 to move downward and reset as a whole.

[0038] In order to adjust the distance that the tool extends outward, it is only necessary to adjust the distance that the second magnetic block 14 moves outward. The specific operation is as follows: before the tool magazine system works, the ring frame 10 is pulled toward the side close to the notch of the CNC turntable 1 or pushed toward the side away from the notch of the CNC turntable 1 to adjust the distance that the second magnetic block 14 moves outward. The ring frame 10 drives the latch teeth to move in the same direction. During movement, the latch teeth squeeze the latch rod 11 to slide toward the side away from the ring frame 10, and the second spring 12 is compressed. When the movement stops, the second spring 12 resets and drives the latch rod 11 to clamp the latch teeth, thereby fixing the ring frame 10, and then fixing the rotating frame 13 and the second magnetic block 14 after the distance is adjusted.

[0039] In addition, the magnetic control system composed of the electromagnet 7 and the second magnetic block 14 and other components is independent of the rotating system composed of the tool changer 2 and the tool and other components, so that the internal circuit of the electromagnet 7 is away from the rotating tool changer 2. Compared with directly installing the electromagnet 7 and other components on the tool changer 2 to extend the tool, the present invention can prevent the electromagnet 7 and other components from rotating with the tool changer 2, thereby avoiding problems such as circuit entanglement, and facilitating maintenance and replacement.

[0040] Embodiment 2: Based on embodiment 1, Figure 5As shown, it also includes a shaking frame 16 distributed corresponding to the placement frame 4, the shaking frame 16 is fixedly connected to the tool changing frame 2, the shaking frame 16 is set to a C shape, and five semicircular grooves are opened on the upper side of the shaking frame 16, a torsion spring 17 is fixedly connected between the slide 3 and the adjacent placement frame 4, and a guide rod 18 is fixedly connected to the side of the placement frame 4 close to the adjacent shaking frame 16, the guide rod 18 is limitedly matched with the adjacent shaking frame 16, and when the guide rod 18 moves to correspond to the semicircular groove of the shaking frame 16, the deformed torsion spring 17 is reset.

[0041] When the guide rod 18 moves to a semicircular groove of the shaking frame 16, the torsion spring 17 in a deformed state is reset to drive the placing frame 4 to swing around the slide 3. The guide rod 18 swings into the semicircular groove with the placing frame 4. When it continues to extend outward, the shaking frame 16 squeezes the placing frame 4 through the guide rod 18 and swings back to reset. The torsion spring 17 is deformed, and this is repeated continuously. When the tool is extended outward, the placing frame 4 drives the tool to shake slightly continuously, which helps to remove tiny cutting fragments and debris attached to the tool surface or in the tool groove, thereby avoiding surface defects or tool damage caused by these residues in subsequent processing.

[0042] Embodiment 3: Based on embodiment 2, Figure 6-Figure 8 As shown, it also includes six annularly distributed guide frames 19, which are slidably connected to the tool changer 2, and two fourth springs 20 are fixedly connected between the guide frame 19 and the tool changer 2. The tool changer 2 is slidably connected to blocks 21 symmetrically distributed along adjacent magnetic frames 6, and the guide frame 19 is slidably connected to adjacent blocks 21 through inclined grooves. The blocks 21 are used to limit the adjacent magnetic frames 6. A pressure frame 22 is fixedly connected to one side of the CNC turntable 1 close to the turntable 13, and the upper end surface of the pressure frame 22 is set to an arc surface. When the guide frame 19 rotates, it is squeezed and matched with the arc surface of the pressure frame 22.

[0043] In order to prevent the tool from being mistakenly attracted by the magnetic attraction scattered by the second magnetic block 14 before the tool is rotated into position, resulting in premature movement, making it easy for the whole to shake during rotation, and affecting the stability of the tool changing system, the magnetic frame 6 can be limited by the clamping block 21 beforehand to limit the tool, and the tool limit can be released when it is about to rotate into position, and the tool can be extended again when it is rotated into position. The specific operation of releasing the limit is as follows:

[0044] In the process of the tool changer 2 driving the magnetic frame 6 to rotate, the tool changer 2 rotates to drive the fourth spring 20 and the block 21 to rotate, and the magnetic frame 6 drives the guide frame 19 thereon to rotate synchronously. When the guide frame 19 rotates to contact with the pressure frame 22, the guide frame 19 slides to the side close to the center of the tool changer 2 under the extrusion of the arc surface of the pressure frame 22, and the fourth spring 20 is compressed. The guide frame 19 pushes the two adjacent blocks 21 thereon to slide away from each other through the inclined groove. In this way, the limit of the block 21 on the magnetic frame 6 is released. At this time, the magnetic frame 6 on the guide frame 19 is not limited by the block 21 and just rotates to correspond to the second magnetic block 14.

[0045] When the rotation continues, the guide frame 19 rotates to disengage from the arc surface of the pressure frame 22, and the fourth spring 20 resets to drive the guide frame 19 to slide to the side away from the center of the tool changer 2. The guide frame 19 pushes the two adjacent blocks 21 thereon to slide toward each other through the inclined groove, thereby achieving the limiting position of the magnetic frame 6 by the blocks 21.

[0046] like Fig. 9 and Fig.10 As shown, it also includes a guide plate 23, which slides forward and backward along the CNC turntable 1, and the ring frame 10 slides up and down along the guide plate 23. The ring frame 10 is rotatably connected to the rotating frame 13. A rotating rod 231 is fixedly connected to one side of the rotating frame 13 close to the guide plate 23. A guide groove for guiding the rotating rod 231 is opened on the upper side of the guide plate 23, and the rotating rod 231 is limitedly matched with the guide groove of the guide plate 23.

[0047] In order to avoid the second magnetic block 14 being too close to the magnetic frame 6 after it moves downward and resets, causing the magnetic frame 6 to be accidentally attracted by the magnetic attraction force scattered by the second magnetic block 14, the guide plate 23 can be used to limit the control of the rotating rod 231 at this time, and the rotating rod 231 can control the second magnetic block 14 to be in a state of tilting away from the magnetic frame 6 through the rotating frame 13, and when the second magnetic block 14 moves upward, under the guidance of the guide plate 23, the rotating rod 231 drives the second magnetic block 14 to swing to a vertical state toward the side close to the magnetic frame 6 through the rotating frame 13.

[0048] Embodiment 4: Based on embodiment 3, Fig.11 As shown, it also includes a baffle 24 symmetrically distributed along the ring frame 10, the baffle 24 is fixedly connected to the CNC turntable 1, and is used to limit the distance adjustment of the second magnetic block 14 in the working state. The baffle 24 is composed of a straight plate and an arc plate. The straight plate is fixedly connected to the CNC turntable 1, and the arc plate is fixedly connected to the straight plate. A gap is left between the slide plate 9 and the straight plate for the horizontal movement of the clamping rod 11, and the slide plate 9 will contact the end face of the arc plate when it moves upward.

[0049] When the slide plate 9 moves upward to the working state, it will contact with the upper part of the baffle frame 24. The upper part of the baffle frame 24 limits the slide plate 9. In this way, when the tool is rotating in the working state, the clamping rod 11 can be prevented from sliding at will, that is, in the working state of this tool magazine system, it is prohibited to adjust the distance of the second magnetic block 14. When the slide plate 9 moves downward to reset, a gap is left between the lower part of the baffle frame 24 and the slide plate 9, and the clamping rod 11 can slide, so that the distance of the second magnetic block 14 can be adjusted.

[0050] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A tool magazine system for a flexible production line, comprising a numerical control turntable (1), the numerical control turntable (1) having a notch for extending a tool, the numerical control turntable (1) being rotatably connected to a tool changer (2), the numerical control turntable (1) controlling the rotation of the tool changer (2) through a numerical control system, the tool changer (2) being slidably connected to a circumferentially distributed slide (3), the slide (3) being rotatably connected to a placement rack (4) for placing a tool, characterized in that: A first spring (5) is fixedly connected between the slide (3) and the tool changer (2); the slide (3) is fixedly connected to a magnetic frame (6); the tool changer (2) is fixedly connected to two electromagnets (7); the CNC turntable (1) controls the on and off of the electromagnets (7) through a CNC system; The electromagnet (7) is fixedly connected to a fixed rod, and the fixed rod is slidably connected to a first magnetic block (8). When power is turned on, the electromagnet (7) and the adjacent first magnetic block (8) cooperate through repulsive magnetic forces. The fixed rod is slidably connected to a slide plate (9), and the slide plate (9) is fixedly connected to the adjacent first magnetic block (8); A ring frame (10) is slidably connected between the two slide plates (9), a clamping rod (11) is slidably connected to the slide plate (9), and a clamping tooth is fixedly connected to a side of the ring frame (10) close to the adjacent clamping rod (11), and the clamping tooth and the adjacent clamping rod (11) are mutually clamped; A second spring (12) is fixedly connected between the clamping rod (11) and the adjacent slide plate (9); a rotating frame (13) is provided on the side of the ring frame (10) close to the notch of the CNC turntable (1); a second magnetic block (14) is fixedly connected to the rotating frame (13); when the magnetic frame (6) rotates to the second magnetic block (14), the second magnetic block (14) and the magnetic frame (6) are magnetically engaged; and a third spring (15) is fixedly connected between the slide plate (9) and the adjacent fixed rod.

2. A tool magazine system for a flexible production line according to claim 1, characterized in that: It also includes a shaking frame (16) distributed corresponding to the placement frame (4), the shaking frame (16) is fixedly connected to the tool changing frame (2), a torsion spring (17) is fixedly connected between the slide frame (3) and the adjacent placement frame (4), and a guide rod (18) is fixedly connected to the side of the placement frame (4) close to the adjacent shaking frame (16), and the guide rod (18) is limitedly matched with the adjacent shaking frame (16).

3. A tool magazine system for a flexible production line according to claim 2, characterized in that: The shaking frame (16) is arranged in a C shape, and a plurality of semicircular grooves are formed on the upper side of the shaking frame (16); when the guide rod (18) moves to correspond to the semicircular grooves, the torsion spring (17) is reset.

4. A tool magazine system for a flexible production line according to claim 3, characterized in that: It also comprises clamping blocks (21) symmetrically distributed along adjacent magnetic racks (6), wherein the clamping blocks (21) are slidably connected to the tool changing rack (2), and the clamping blocks (21) are used to limit the position of adjacent magnetic racks (6).

5. The tool magazine system for a flexible production line according to claim 4, characterized in that: The invention also comprises a guide frame (19) distributed in an annular manner, wherein the guide frame (19) is slidably connected to the tool changer (2), and the guide frame (19) is slidably connected to the adjacent clamping block (21) via an inclined groove. At least one fourth spring (20) is fixedly connected between the guide frame (19) and the tool changer (2). A pressing frame (22) for pressing the guide frame (19) is fixedly connected to a side of the numerical control turntable (1) close to the turntable (13). The end surface of the pressing frame (22) close to the guide frame (19) is set as an arc surface. When the guide frame (19) rotates, it is pressed and matched with the arc surface of the pressing frame (22).

6. A tool magazine system for a flexible production line according to claim 5, characterized in that: The ring frame (10) and the rotating frame (13) are connected via damping rotation.

7. A tool magazine system for a flexible production line according to claim 6, characterized in that: The invention also comprises a guide plate (23), wherein the guide plate (23) is slidably connected to the numerical control turntable (1), and the guide plate (23) is slidably connected to the ring frame (10). A rotating rod (231) is fixedly connected to a side of the rotating frame (13) close to the guide plate (23), and the rotating rod (231) is limitedly matched with the guide plate (23).

8. The tool magazine system for a flexible production line according to claim 7, characterized in that: A guide groove for guiding the rotating rod (231) is formed on a side of the guide plate (23) close to the rotating rod (231).

9. The tool magazine system for a flexible production line according to claim 8, characterized in that: It also comprises a baffle (24) symmetrically distributed along the ring frame (10), the baffle (24) being fixedly connected to the numerical control turntable (1), and the baffle (24) being used to limit the distance adjustment of the second magnetic block (14) in a working state.

10. The tool magazine system for a flexible production line according to claim 9, characterized in that: The retaining frame (24) is composed of a straight plate and a curved plate, the straight plate is fixedly connected to the numerical control turntable (1), and the curved plate is fixedly connected to the straight plate, a gap is left between the slide plate (9) and the straight plate for the clamping rod (11) to move, and the slide plate (9) moves upward to contact the end surface of the curved plate.

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