Tool magazine device for tool changing of machine tool and tool changing method

By designing a tool magazine device with components such as a connecting frame, base plate, robotic arm, and transmission chain, the orderly storage and precise transfer of machine tool tools are achieved, solving the problems of loose structure and low tool changing efficiency in existing technologies, and improving machining accuracy and efficiency.

CN121946253APending Publication Date: 2026-05-01TIANJIN HERUIXINGHUA TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TIANJIN HERUIXINGHUA TECH CO LTD
Filing Date
2026-03-06
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing machine tool tool magazine devices have loose structures and unstable connections, resulting in disorganized tool storage, misaligned tool transmission, cumbersome tool changing processes, and significant power transmission losses, making it difficult to meet the demands of high-precision and high-efficiency machining.

Method used

A tool magazine device was designed, comprising a connecting frame, a base plate, a robotic arm, a transmission mechanism, a locking slide, and a transmission chain. Through the rotation of the robotic arm and the power transmission of the transmission chain, the orderly storage and precise transfer of tools are achieved. With the help of the locking mechanism and the drive mechanism, the tool can be changed quickly and accurately.

Benefits of technology

It improves the standardization of tool storage and transfer and the efficiency of tool changing, ensuring the continuity and precision of machine tool processing, and meeting the needs of high-precision and high-efficiency processing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The tool magazine device is used for storing and conveying tools, comprises a connecting frame used for being connected with the machine tool, and further comprises a bottom plate, a tool changer, a tool changing device and a tool changing device, the mechanical arm is arranged on the bottom plate and is used for clamping a cutter to replace and mount the machine tool; the transmission mechanism is arranged on the bottom plate and is used for driving the cutter to move; the clamping sliding plate is arranged on the bottom plate and used for storing cutters; and the transmission chain is arranged on the transmission mechanism. According to the tool magazine device for tool changing of the machine tool and the tool changing method, the connecting frame connected with the machine tool is arranged to ensure that the whole tool magazine device is stably mounted, the bottom plate provides a unified mounting and bearing foundation for functional parts such as the mechanical arm, the transmission mechanism and the clamping sliding plate, and the problems that an existing machine tool tool magazine is loose in structure and unstable in connection are effectively solved; and orderly storage of the cutters is achieved through a clamping sliding plate, and conveying dislocation caused by disordered placement of the cutters is avoided.
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Description

A tool magazine device for machine tool tool changing and a method for changing tools. Technical Field

[0001] This invention relates to the field of machine tool processing technology, specifically to a tool magazine device for changing machine tools and a method for changing cutting tools. Background Technology

[0002] In the field of machine tool processing, the storage, transfer, and rapid replacement of cutting tools directly affect processing efficiency and accuracy. Existing machine tool tool magazine devices often suffer from loose structures and poor coordination among various functional components. Traditional tool magazines typically only have simple tool storage racks and a single transfer structure, lacking dedicated power transmission components and precise clamping and transfer mechanisms. This results in disorganized tool storage, easy misalignment during transfer, difficulty for robotic arms to quickly and accurately acquire matching tools, cumbersome tool changing processes, and seriously affects the continuity of machine tool processing.

[0003] Meanwhile, the existing tool magazine devices lack a unified installation and support foundation for their various functional modules, resulting in insufficient connection stability with the machine tool. Furthermore, the tool transmission and the robotic arm's tool changing action are not smoothly coordinated, leading to significant power transmission losses. This makes it impossible to efficiently transfer the specified type of tool to the tool changing station, resulting in low tool changing efficiency and insufficient positioning accuracy, which makes it difficult to meet the high-precision and high-efficiency machining requirements of the machine tool. Summary of the Invention

[0004] The purpose of this invention is to provide a tool magazine device and a tool changing method for machine tools, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a tool magazine device for changing tools on a machine tool, which is used to store and transfer tools, including a connecting frame for connecting to the machine tool, and further including: a base plate; a robotic arm disposed on the base plate, which is used to clamp the tool for changing and installing on the machine tool; a transmission mechanism disposed on the base plate, which is used to drive the tool to move; a locking slide disposed on the base plate, which is used to store the tool; and a transmission chain disposed on the transmission mechanism, which is used to transmit the power of the transmission mechanism to the tool and transfer the matching tool to the robotic arm.

[0006] Preferably, the end of the robotic arm is provided with a rotating head, which is rotatable and used to replace the tool; one end of the rotating head is provided with a vertical plate, and replacement plates are provided on both sides of the vertical plate; the curvature of the replacement plate and the locking slide plate are matched.

[0007] Preferably, the robotic arm is further provided with a locking mechanism, the locking mechanism is provided with a push rod, and the output end of the push rod is provided with a strike head; a moving rod is inserted into the rotating head, the input end of the moving rod is provided with a baffle, the inner side of the baffle is provided with a return spring, and the output end of the moving rod is provided with a locking plate; a locking groove is opened on the locking plate, and a limiting rod is also provided on the rotating head, the position and size of the locking groove and the limiting rod are matched.

[0008] Preferably, the push rod is used to push the moving rod.

[0009] Preferably, the rotating head is provided with at least one tool holder mechanism, which is arranged in a mirror image; the tool holder mechanism includes a snap-fit ​​slide frame connected to the rotating head, the snap-fit ​​slide frame is connected to a connecting piece, and the outer side of the connecting piece is provided with a clamping rod for connecting with the tool.

[0010] Preferably, the tool holder mechanism has a plug-in seat on the side near the transmission chain; the transmission chain has a lever; the lever is plugged into the plug-in seat.

[0011] Preferably, the transmission mechanism includes a driven gear and a driving gear disposed on the base plate, and the driving gear is provided with a driven pulley; the transmission mechanism also includes a driving pulley disposed on the base plate; a synchronous belt is sleeved on the driving pulley and the driven pulley.

[0012] Preferably, the transmission mechanism and the robotic arm are respectively provided with a drive mechanism; the drive mechanism includes a transmission motor for driving the transmission mechanism, the transmission motor being connected to the drive pulley; it also includes a second robotic arm motor provided on the robotic arm for driving the robotic arm to rotate; and a first robotic arm motor provided on the robotic arm for driving the rotating head to rotate.

[0013] A method for changing a tool on a machine tool: A specified tool model is selected; a drive mechanism drives a transmission mechanism to transport the tool via a transmission chain until the tool is moved onto a rotary head; a locking mechanism locks the tool holder mechanism and the rotary head; the drive mechanism drives a robotic arm to rotate, causing the tool holder mechanism and the tool to disengage from the locking slide; the drive mechanism drives the rotary head to rotate, removing the tool from the machine tool from the empty tool holder mechanism; the rotary head is rotated again to install the specific tool model onto the machine tool.

[0014] The rotating head rotates three times to reset the replaced tool, and the transmission chain drives the tool to move to the position of the next tool at the rotating head.

[0015] Preferably, there are at least two tool holder mechanisms and tools, all of which are connected to the locking slide plate.

[0016] Compared with the prior art, the beneficial effects of this invention are as follows: The tool magazine device and tool replacement method for machine tool tool changing ensure the overall stability of the tool magazine device by setting a connecting frame connected to the machine tool. The base plate provides a unified mounting foundation for various functional components such as the robotic arm, transmission mechanism, and clamping slide, effectively solving the problems of loose structure and unstable connection of existing machine tool tool magazines. The clamping slide realizes the orderly storage of tools, avoiding transmission misalignment caused by messy tool placement. The transmission mechanism accurately transmits power through the transmission chain, which can efficiently transport matching tools to the robotic arm. Combined with the robotic arm's special clamping and tool changing function, it effectively solves the problems of cumbersome tool changing process, large power transmission loss, and poor connection between tool transmission and tool changing action in traditional tool magazines. The overall structure has strong synergy, greatly improving the standardization of tool storage and transmission and tool changing efficiency, ensuring the continuity and accuracy of machine tool processing, and meeting the high-precision and high-efficiency processing requirements of machine tools. Attached Figure Description

[0017] Figure 1 is a top view of the present invention; Figure 2 is a left side view of the present invention; Figure 3 is an enlarged view of point A in Figure 2 of the present invention; Figure 4 is a right side view of the present invention; Figure 5 is an enlarged view of point B in Figure 4 of the present invention.

[0018] In the diagram: 1. Connecting frame; 2. Base plate; 3. Transmission mechanism; 31. Driven gear; 32. Driven gear; 33. Driven pulley; 34. Driven pulley; 4. Drive mechanism; 41. Transmission motor; 42. First robotic arm motor; 43. Second robotic arm motor; 5. Snap-fit ​​sliding plate; 6. Transmission chain; 61. Lever; 7. Plug-in seat; 8. Tool holder mechanism; 81. Snap-fit ​​sliding frame; 82. Connecting piece; 83. Clamping rod; 9. Tool; 10. Locking mechanism; 101. Push rod; 102. Impact head; 103. Baffle; 104. Return spring; 105. Moving rod; 106. Snap-fit ​​plate; 1061. Snap-fit ​​groove; 107. Limiting rod; 11. Robotic arm; 111. Rotating head; 1111. Vertical plate; 1112. Replacement plate. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please refer to Figures 1-5. The present invention provides a technical solution: a tool magazine device for changing tools on a machine tool, which is used to store and transfer tools 9. The number of tools 9 is several and the models are different. They are all set on the locking slide plate 5 with the tool holder mechanism 8. The tools 9 are used to install onto the machine tool. The device includes a connecting frame 1 for connecting to the machine tool, and also includes a base plate 2. The base plate 2 is used to load the remaining structures and plays a role in load-bearing support.

[0021] The robotic arm 11 is mounted on the base plate 2 and is used to hold the cutting tool 9 for changing and installing on the machine tool. The robotic arm 11 rotates as a whole to drive the cutting tool 9 onto the machine tool. The end of the robotic arm 11 is provided with a rotating head 111, which can rotate and is used to change the cutting tool 9. One end of the rotating head 111 is provided with a vertical plate 1111, and the two sides of the vertical plate 1111 are provided with replacement plates 1112, which match the curvature of the replacement plate 1112 and the clamping slide plate 5.

[0022] The connecting frame 1 is connected to the machine tool. The base plate 2 loads all other structures and serves as a load-bearing support. Several different types of cutting tools 9 and tool holder mechanisms 8 are set on the clamping slide plate 5. The robotic arm 11 is set on the base plate 2. The robotic arm 11 rotates as a whole to drive the cutting tool 9 to move. The end of the robotic arm 11 is provided with a rotatable head 111. The head 111 is used to replace the cutting tool 9. One end of the head 111 is provided with a vertical plate 1111. The two sides of the vertical plate 1111 are provided with replacement plates 1112 that match the curvature of the clamping slide plate 5. During operation, the robotic arm 11 clamps the cutting tool 9 on the clamping slide plate 5 and installs the cutting tool 9 onto the machine tool by rotating itself and rotating the head 111.

[0023] The robotic arm 11 is also equipped with a locking mechanism 10, which supports the push rod 101 and locks the tool holder mechanism 8 on the rotary head 111. The locking mechanism 10 has a push rod 101 that pushes the moving rod 105 to lock the rotary head 111 and the tool holder mechanism 8. The output end of the push rod 101 has a bumper 102 made of soft material to reduce damage to the baffle 103. A moving rod 105 is inserted into the rotary head 111, and the input end of the moving rod 105 has a baffle 103 for adjusting the position of the moving rod. The impact of the impact head 102 is accompanied by a return spring 104 on the inner side of the baffle 103. The return spring 104 is used to limit the movement rod 105. The output end of the movement rod 105 is provided with a locking plate 106. The locking plate 106 is used to fit and lock the limiting rod 107. The locking plate 106 is provided with a locking groove 1061. The size and shape of the locking groove 1061 match the size and shape of the limiting rod 107. The rotating head 111 is also provided with a limiting rod 107. The position and size of the locking groove 1061 and the limiting rod 107 match. The push rod 101 is used to push the movement rod 105.

[0024] The locking mechanism 10 is mounted on the robotic arm 11 to support the push rod 101. The push rod 101 pushes the baffle 103 through the impact head 102 at the output end, which drives the moving rod 105 inserted in the rotary head 111 to move. The return spring 104 on the inner side of the baffle 103 limits the moving rod 105. The snap plate 106 at the output end of the moving rod 105 cooperates with the limiting rod 107 on the rotary head 111 through the snap groove 1061 on it, so as to realize the locking connection between the rotary head 111 and the tool holder mechanism 8.

[0025] The rotary head 111 is provided with at least one tool holder mechanism 8, which is set in a mirror image. This design can effectively complete the unloading of the tool 9 from the machine tool and the installation of the tool 9 on the machine tool. The tool holder mechanism 8 includes a snap-fit ​​slide frame 81 connected to the rotary head 111. The snap-fit ​​slide frame 81 is used to snap-fit ​​the snap-fit ​​slide plate 5 and can slide on the snap-fit ​​slide plate 5. The snap-fit ​​slide frame 81 is connected to a connecting piece 82. The outer side of the connecting piece 82 is provided with a connecting groove for accommodating a clamping rod 83. The outer side of the connecting piece 82 is provided with a clamping rod 83 for connecting with the tool 9. The clamping rod 83 is used to snap-fit ​​the tool 9. The connecting piece 82 is also provided with a receiving groove for accommodating the tool 9. The tool holder mechanism 8 is provided with a plug-in seat 7 on the side near the transmission chain 6.

[0026] The rotary head 111 is provided with at least one tool holder mechanism 8, which is arranged in a mirror image and is used to unload the tool 9 on the machine tool and install the tool 9 on the machine tool. The tool holder mechanism 8 includes a snap-fit ​​slide frame 81 connected to the rotary head 111. The snap-fit ​​slide frame 81 snaps with the snap-fit ​​slide plate 5 and can slide on the snap-fit ​​slide plate 5. The snap-fit ​​slide frame 81 is connected to a connecting piece 82. A connecting groove for accommodating a clamping rod 83 is opened on the outer side of the connecting piece 82, and a receiving groove for accommodating the tool 9 is provided on the connecting piece 82. The clamping rod 83 is provided on the outer side of the connecting piece 82 for snapping the tool 9. A plug-in seat 7 is provided on the side of the tool holder mechanism 8 near the transmission chain 6.

[0027] The transmission mechanism 3, located on the base plate 2, is used to move the cutting tool 9. The transmission mechanism 3 drives the transmission chain 6 to operate, thereby causing the tool holder mechanism 8 and the cutting tool 9 to slide on the locking slide plate 5, transferring the required type of cutting tool 9 to the position of the rotating head 111, thus realizing the adjustment of the targeted cutting tool 9 in the tool magazine. The transmission mechanism 3 includes a driven gear 31 and a driving gear 32 located on the base plate 2. The transmission chain 6 is sleeved on the driven gear 31 and the driving gear 32. The driving gear 32 is provided with a driven pulley 33. The transmission mechanism 3 also includes a driving pulley 34 located on the base plate 2. The driving pulley 34 and the driven pulley 33 are sleeved with a synchronous belt, which is used to drive the driven gear 31 and the driving gear 32 synchronously.

[0028] The transmission mechanism 3 is mounted on the base plate 2 and is used to drive the transmission chain 6 to rotate, thereby driving the tool holder mechanism 8 and the tool 9 to slide on the locking slide plate 5, and transmitting the required type of tool 9 to the rotating head 111 position; the transmission mechanism 3 includes a driven gear 31 and a driving gear 32 mounted on the base plate 2, the transmission chain 6 is sleeved on the driven gear 31 and the driving gear 32, the driving gear 32 is provided with a driven pulley 33, the transmission mechanism 3 also includes a driving pulley 34 mounted on the base plate 2, the synchronous belt is sleeved on the driving pulley 34 and the driven pulley 33, driving the driven gear 31 and the driving gear 32 to rotate synchronously.

[0029] The transmission mechanism 3 and the robotic arm 11 are respectively provided with a drive mechanism 4. The drive mechanism 4 is used to drive the transmission mechanism 3 and the robotic arm 11. The drive mechanism 4 includes a transmission motor 41 for driving the transmission mechanism 3. The transmission motor 41 is connected to the drive pulley 34. It also includes a second robotic arm motor 43 on the robotic arm 11 for driving the robotic arm 11 to rotate, and a first robotic arm motor 42 on the robotic arm 11 for driving the rotating head 111 to rotate. Driving the rotating head 111 to rotate can facilitate the disassembly and installation of the cutting tool 9 on the machine tool.

[0030] The drive mechanism 4 is respectively mounted on the transmission mechanism 3 and the robotic arm 11, and is used to drive the transmission mechanism 3 and the robotic arm 11. The drive mechanism 4 includes a transmission motor 41, a first robotic arm motor 42 and a second robotic arm motor 43. The transmission motor 41 is connected to the drive pulley 34. The second robotic arm motor 43 is mounted on the robotic arm 11 and drives the robotic arm 11 to rotate. The first robotic arm motor 42 is mounted on the robotic arm 11 and drives the rotating head 111 to rotate, thereby realizing the disassembly and installation of the machine tool cutting tool 9.

[0031] A snap-fit ​​slide plate 5 is mounted on the base plate 2 and is used to store the cutting tool 9.

[0032] The drive mechanism 4 is respectively mounted on the transmission mechanism 3 and the robotic arm 11, and is used to drive the transmission mechanism 3 and the robotic arm 11. The drive mechanism 4 includes a transmission motor 41, a first robotic arm motor 42 and a second robotic arm motor 43. The transmission motor 41 is connected to the drive pulley 34. The second robotic arm motor 43 is mounted on the robotic arm 11 and drives the robotic arm 11 to rotate. The first robotic arm motor 42 is mounted on the robotic arm 11 and drives the rotating head 111 to rotate, thereby realizing the disassembly and installation of the machine tool cutting tool 9.

[0033] The transmission chain 6 is located on the transmission mechanism 3 and is used to transmit the power of the transmission mechanism 3 to the cutting tool 9 and to transmit the matching cutting tool 9 to the robotic arm 11. The transmission chain 6 is equipped with a lever 61, which is inserted into the insertion seat 7. When the transmission mechanism 3 drives the transmission chain 6 to operate, the lever 61 moves the insertion seat 7, thereby driving the tool holder mechanism 8 and the cutting tool 9 to operate.

[0034] The transmission chain 6 is mounted on the transmission mechanism 3 and is used to transmit the power of the transmission mechanism 3 to the cutting tool 9 and to transmit the matching cutting tool 9 to the robotic arm 11. The transmission chain 6 is equipped with a lever 61, which is inserted into the insertion seat 7. When the transmission mechanism 3 drives the transmission chain 6 to operate, the lever 61 moves the insertion seat 7, thereby driving the tool holder mechanism 8 and the cutting tool 9 to move.

[0035] Select a specified type of cutting tool 9. The drive mechanism 4 drives the transmission mechanism 3 to transport the cutting tool 9 along the transmission chain 6 until the cutting tool 9 is moved onto the rotary head 111. The locking mechanism 10 locks the tool holder mechanism 8 and the rotary head 111. The drive mechanism 4 drives the robotic arm 11 to rotate, causing the tool holder mechanism 8 and the cutting tool 9 to disengage from the clamping slide plate 5. The drive mechanism 4 drives the rotary head 111 to rotate, removing the empty tool holder mechanism 8 from the machine tool holding the cutting tool 9. The rotary head 111 is rotated again to install the specific type of cutting tool 9 onto the machine tool. The rotary head 111 rotates three times to reset the replacement cutting tool 9. The transmission chain 6 drives the next cutting tool 9 to the position of the rotary head 111.

[0036] There are at least two tool holder mechanisms 8 and tools 9, both of which are connected to the locking slide plate 5.

[0037] When using the tool magazine device and tool changing method for machine tools, the connecting frame 1 is connected to the machine tool, the base plate 2 supports the entire structure of the device, the snap-fit ​​slide plate 5 is set on the base plate 2 and stores the tool 9 and the tool holder mechanism 8, the drive motor 41 of the drive mechanism 4 drives the drive pulley 34, driven pulley 33, drive gear 32 and driven gear 31 to rotate, the transmission mechanism 3 drives the transmission chain 6 to rotate, the lever 61 on the transmission chain 6 is inserted into the insertion seat 7 and moves the tool holder mechanism 8, causing the tool 9 to slide along the snap-fit ​​slide plate 5, and the specified type of tool 9 is transported to the rotating head 111; the push rod 101 of the locking mechanism 10 pushes the baffle 103 through the bumper 102, causing the moving rod 105 in the rotating head 111 to move, the return spring 104 limits the moving rod 105, and the end of the moving rod 105 snaps into the plate 106. The locking groove 1061 engages with the limiting rod 107 on the rotating head 111 to lock the rotating head 111 with the tool holder mechanism 8. The second robotic arm motor 43 drives the robotic arm 11 to rotate, causing the tool holder mechanism 8 and the tool 9 to disengage from the locking slide plate 5. The first robotic arm motor 42 drives the rotating head 111 to rotate. The tool holder mechanism 8, which is mirror-opposite on the rotating head 111, first removes the tool 9 from the machine tool and then installs the target tool 9 onto the machine tool. The locking slide frame 81 of the tool holder mechanism 8 engages and slides with the locking slide plate 5. The connecting piece 82 engages the tool 9 through the clamping rod 83. The vertical plate 1111 of the rotating head 111 has replacement plates 1112 on both sides that match the curvature of the locking slide plate 5. After the rotating head 111 completes three rotations, it resets. The transmission chain 6 drives the next tool 9 to move to the position of the rotating head 111, completing the replacement and transport of the tool 9.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tool magazine device for changing tools on a machine tool, used for storing and transferring tools (9), comprising a connecting frame (1) for connecting to the machine tool, characterized in that... It also includes: a base plate (2); a robotic arm (11) disposed on the base plate (2) for clamping the cutting tool (9) for changing and installing the machine tool; a transmission mechanism (3) disposed on the base plate (2) for driving the cutting tool (9) to move; a snap-fit ​​slide plate (5) disposed on the base plate (2) for storing the cutting tool (9); and a transmission chain (6) disposed on the transmission mechanism (3) for transmitting the power of the transmission mechanism (3) to the cutting tool (9) and transmitting the matching cutting tool (9) to the robotic arm (11).

2. The tool magazine device for changing tools on a machine tool according to claim 1, characterized in that... The end of the robotic arm (11) is provided with a rotating head (111), which is rotatable and used to replace the tool (9); one end of the rotating head (111) is provided with a vertical plate (1111), and replacement plates (1112) are provided on both sides of the vertical plate (1111); the curvature of the replacement plate (1112) matches that of the snap-fit ​​sliding plate (5).

3. A tool magazine device for changing tools on a machine tool according to claim 2, characterized in that... The robotic arm (11) is also provided with a locking mechanism (10), the locking mechanism (10) is provided with a push rod (101), and the output end of the push rod (101) is provided with a bumper (102); a moving rod (105) is inserted into the rotating head (111), the input end of the moving rod (105) is provided with a baffle (103), the inner side of the baffle (103) is provided with a return spring (104), and the output end of the moving rod (105) is provided with a snap-fit ​​plate (106); a snap-fit ​​groove (1061) is opened on the snap-fit ​​plate (106), and a limit rod (107) is also provided on the rotating head (111). The position and size of the snap-fit ​​groove (1061) and the limit rod (107) are matched.

4. A tool magazine device for changing tools on a machine tool according to claim 3, characterized in that... The push rod (101) is used to push the moving rod (105).

5. A tool magazine device for changing tools on a machine tool according to claim 3, characterized in that... The rotating head (111) is provided with at least one tool holder mechanism (8), which is arranged in a mirror image. The tool holder mechanism (8) includes a snap-fit ​​slide frame (81) connected to the rotating head (111), and the snap-fit ​​slide frame (81) is connected to a connecting piece (82). The outer side of the connecting piece (82) is provided with a clamping rod (83) for connecting with the tool (9).

6. A tool magazine device for changing tools on a machine tool according to claim 5, characterized in that... The tool holder mechanism (8) has a plug-in seat (7) on the side near the transmission chain (6); the transmission chain (6) has a lever (61); the lever (61) is inserted into the plug-in seat (7).

7. A tool magazine device for changing tools on a machine tool according to claim 5, characterized in that... The transmission mechanism (3) includes a driven gear (31) and a driving gear (32) disposed on the base plate (2), and a driven pulley (33) is provided on the driving gear (32); the transmission mechanism (3) also includes a driving pulley (34) disposed on the base plate (2); a synchronous belt is sleeved on the driving pulley (34) and the driven pulley (33).

8. A tool magazine device for changing tools on a machine tool according to claim 7, characterized in that... The transmission mechanism (3) and the robotic arm (11) are respectively provided with a drive mechanism (4); the drive mechanism (4) includes a transmission motor (41) for driving the transmission mechanism (3), the transmission motor (41) is connected to the drive pulley (34); it also includes a second robotic arm motor (43) provided on the robotic arm (11) for driving the robotic arm (11) to rotate; and a first robotic arm motor (42) provided on the robotic arm (11) for driving the rotating head (111) to rotate.

9. A method for changing tools for a machine tool, applied to the tool magazine device for changing tools for a machine tool as described in claim 8, characterized in that... Select a specified type of cutting tool (9), the drive mechanism (4) drives the transmission mechanism (3) to drive the transmission chain (6) to transport the cutting tool (9) until the cutting tool (9) is moved onto the rotary head (111); the locking mechanism (10) locks the tool holder mechanism (8) and the rotary head (111), the drive mechanism (4) drives the robotic arm (11) to rotate, causing the tool holder mechanism (8) and the cutting tool (9) to disengage from the snap-fit ​​slide plate (5); the drive mechanism (4) drives the rotary head (111) to rotate, remove the cutting tool (9) from the machine tool by the empty tool holder mechanism (8), rotate the rotary head (111) again, and install the specific type of cutting tool (9) onto the machine tool; the rotary head (111) rotates three times to reset the replaced cutting tool (9), and the transmission chain (6) drives the movement to the position of the next cutting tool (9) on the rotary head (111).

10. A method for changing cutting tools in a machine tool according to claim 9, characterized in that... There are at least two tool holder mechanisms (8) and tools (9), both of which are connected to the snap-fit ​​sliding plate (5).