A disc-type tool magazine with tool self-locking function

Abstract

The present invention relates to the field of machine tool accessories, and relates to a disc-type tool magazine with a tool self-locking function, comprising: a power supply box; a support shaft and a main turntable; a mounting plate, mounted on the main turntable; a connecting rod, mounted in a mounting opening uniformly opened along the circumference of the mounting plate; a mounting plate, fixedly arranged on the top of the support shaft; a telescopic push rod, mounted on the mounting plate; a moving frame, slidably arranged on the telescopic push rod and driven by the telescopic push rod; a tool sleeve, which is provided with a connecting crank and is movably hinged on the connecting rod through the connecting crank; a self-locking mechanism, which is arranged at the root of the tool sleeve for self-locking the tool. The self-locking mechanism provided by the present invention can provide a stable clamping effect after the tool is placed in the tool sleeve, and the tool will not shake when the tool magazine is placed in the tool sleeve during operation, thereby avoiding the risk of tool damage, and the tool will not fall off during the process of following the rotation of the tool sleeve.

Description

Technical Field

[0001] The invention relates to the field of machine tool accessories, and in particular to a disc-type tool magazine with a tool self-locking function. Background Art

[0002] In CNC machine tool processing, the appropriate tool magazine is usually selected according to the machine tool structure and the number of tool changes. The disc-type tool magazine has a higher tool storage capacity. There are two main ways to store tools in the disc-type tool magazine. One is to fix the tool by ball clamping, but this method is not suitable for large tools. When a tool with a large mass is placed on the disc, the tool is easily thrown out with the rapid rotation of the disc; the second way to store tools is to place the tool in a tubular tool barrel, and the tool is placed in the tool barrel. Therefore, when the tool rotates with the disc, the tool is easy to shake in the tool barrel and then hit the tool to cause damage, and it will produce a lot of noise. At the same time, the tool barrel uses a ball to clamp and fix the tool handle shaft. Since the ball set in the tool barrel is supported by a spring to lock the tool, when the tool needs to be taken out after locking, it only needs to apply a certain force to the tool to pull out the tool. Therefore, there are certain restrictions on the quality of the tool in the tool barrel, and it cannot lock a tool with a large mass, otherwise the tool will easily fall off during the rotation process. Summary of the invention

[0003] The present invention aims to solve the technical problems existing in the above-mentioned prior art. To this end, the present invention provides a disc-type tool magazine with a tool self-locking function.

[0004] To achieve the above-mentioned purpose, the present invention provides a disc-type tool magazine with a tool self-locking function, comprising: a power supply box; a support shaft, centrally mounted on the power supply box; a main turntable, rotatably arranged on the support shaft; a mounting plate, mounted on the main turntable; a connecting rod, mounted in a mounting opening uniformly opened along the circumference of the mounting plate; an inner gear ring, mounted at the bottom of the main turntable; a driving gear, connected to the output end of the power supply box through a shaft, meshing with the inner gear ring for transmission; a mounting plate, fixedly mounted on the top of the support shaft; a telescopic push rod, mounted on the mounting plate; a moving frame, slidably arranged on the telescopic push rod and driven by the telescopic push rod; a tool sleeve, on which a connecting crank is provided, and movably hinged to the connecting rod through the connecting crank; a support A ring is installed on the power supply box, and the mounting plate is placed therein; when the tool sleeve rotates and moves with the mounting plate, the bottom is supported by the support ring to maintain a vertical state, a top block is provided on the moving frame to push the connecting crank to flip the tool sleeve to a straight state, a curved hook is provided on the moving frame to hook the connecting crank and pull back to flip the tool sleeve to a vertical state, and a notch is provided on the support ring to allow the tool sleeve to flip through; a self-locking mechanism is arranged at the root of the tool sleeve to complete self-locking of the tool; a releasing device is installed on the power supply box just below the moving frame, and is used to release the locked tool in the tool sleeve in a straight state; an automatic tool changing mechanism is arranged on the power supply box, and is used to grab the tool in the tool sleeve in a straight state.

[0005] As a further improvement of the scheme, the self-locking mechanism includes: a accommodating bin and a centrally opened access hole are arranged at the root of the knife sleeve; a plurality of fan-shaped wedges are provided and are arranged in a ring around the access hole in the accommodating bin; a shank shaft passes through the access hole from the knife sleeve and is placed in the accommodating bin and is clamped by the fan-shaped wedge; a spring is arranged between the fan-shaped wedge and the side wall of the accommodating bin; a lever is fixedly mounted on the fan-shaped wedge; a top cover is closed and arranged at the bin opening of the accommodating bin; the top cover is provided with a plurality of sliding openings matching the position of the lever and allowing the lever to slide in the sliding openings.

[0006] As a further improvement of the scheme, the releasing device includes: a reduction box installed on the power supply box; a driving motor connected to the reduction box; a separation disc, on which a number of arc corners are protruding, which is the same as the number of the shifting rod, and a plurality of arc corners are arranged to spread outward with the same center, and the separation disc is driven and installed on the reduction box; when the knife sleeve is in a flat state, the shifting rod is inserted into a starting recessed portion on the separation disc, and after the separation disc is driven to rotate by the driving motor, the shifting rod separates the fan-shaped wedges from each other; the edge of the arc corner is a second bevel.

[0007] As a further improvement of the solution, it also includes: a beveled edge convex ring installed on the mounting plate; when the tool sleeve is in a vertical state, the connecting crank abuts against the beveled edge of the beveled edge convex ring.

[0008] As a further improvement of the solution, it also includes: a reinforcing frame, which is arranged on the outer surface of the knife sleeve; and a load-bearing bearing, which is rotatably installed on the outer side wall of the knife sleeve and contacts with the surface of the support ring.

[0009] As a further improvement of the solution, it also includes: load-bearing columns, which are arranged at intervals on the power supply box; and balls, which are rolled on the top of the load-bearing columns and contact the surface of the mounting plate.

[0010] As a further improvement of the solution, it also includes: a pad installed on the power supply box and located between the gaps formed by the support ring; the pad is provided with an arc groove matching the shape of the tool sleeve.

[0011] As a further improvement of the solution, it also includes: limit blocks, which are arranged at intervals around the accommodating compartment, so that the fan-shaped wedge is placed between the limit blocks and moves.

[0012] As a further improvement of the solution, it also includes: a sliding groove is opened on the side wall of the limit block close to the fan-shaped wedge.

[0013] As a further improvement of the solution, it also includes: the side of the upper part of the sector-shaped clamping wedge that contacts the tool handle shaft is a right-angled side, and the edge directly below the right-angled side of the sector-shaped clamping wedge is a first hypotenuse inclined outward.

[0014] The present invention brings at least the following effects:

[0015] 1. The self-locking mechanism provided in the present invention can provide a stable clamping effect after the tool is placed in the tool sleeve. The tool will not shake when placed in the tool sleeve during the operation of the tool magazine, and the noise is reduced during operation, avoiding the risk of tool damage. At the same time, the tool will not fall off easily when following the rotation of the tool sleeve.

[0016] 2. The beveled convex ring provided in the present invention can prevent the knife sleeve from tipping over when it is in a vertical state on the mounting plate. The beveled edge of the beveled convex ring abuts against the connecting crank of the knife sleeve, thereby ensuring that the knife sleeve is in a vertical state.

[0017] 3. The limit block provided in the accommodating bin of the present invention can limit the range of motion of the sector-shaped clamping wedge, and the sector-shaped clamping wedge will not be separated from each other due to the lack of positioning restriction during the process of the shank shaft being clamped into the sector-shaped clamping wedge.

[0018] 4. The slide groove provided on the limit block of the present invention can guide the sector-shaped clamping wedge to slide in a fixed direction, so that the sector-shaped clamping wedge will not be pushed to cause misalignment between the upper and lower parts during the clamping process of the tool handle shaft.

[0019] 5. The load-bearing column and the ball bearing provided in the present invention cooperate to support the mounting plate, so as to prevent the mounting plate from tilting to one side during the rotation of the mounting plate due to the presence of a large tool in the tool sleeve, thereby preventing damage to the components. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a complete schematic diagram of the present invention.

[0021] Figure 2 For the present invention Figure 1 Schematic diagram with the protective cover removed.

[0022] Figure 3 For the present invention Figure 2 Schematic diagram from another perspective with the power supply box and automatic tool changing mechanism hidden.

[0023] Figure 4 It is a disassembly schematic diagram of the mounting disc, the inner gear ring, the mounting plate and the telescopic push rod of the present invention.

[0024] Figure 5 It is a schematic diagram of the specific structure of the knife sheath of the present invention.

[0025] Figure 6 It is a disassembly schematic diagram of the self-locking mechanism of the present invention.

[0026] Figure 7 It is a schematic diagram of the specific structure of the fan-shaped clamping wedge of the present invention.

[0027] Figure 8 It is a schematic diagram of the specific structure of the release device of the present invention.

[0028] Fig. 9 It is a schematic diagram of the positions of the load-bearing columns, balls and pads of the present invention.

[0029] Fig.10 It is a schematic diagram of the automatic tool changing mechanism of the present invention.

[0030] The corresponding relationship between the reference numerals and the names of the components in the accompanying drawings is as follows:

[0031] 1-power supply box, 2-support shaft, 3-main turntable, 4-mounting plate, 5-connecting rod;

[0032] 41-bevel convex ring;

[0033] 6-inner gear ring, 7-driving gear, 8-mounting plate, 9-telescopic push rod;

[0034] 10-mobile frame, 101-bend hook, 102-top block;

[0035] 11-knife sleeve, 111-connecting crank, 112-reinforcement frame, 113-load-bearing bearing, 12-support ring;

[0036] 13-self-locking mechanism, 131-accommodating compartment, 132-access hole, 133-limiting block, 134-sliding groove, 135-sector-shaped wedge, 136-spring, 137-shift lever, 138-top cover, 139-sliding opening;

[0037] 1351-right angle side, 1352-first hypotenuse;

[0038] 14-releasing device, 141-reduction box, 142-driving motor, 143-separating plate, 144-second bevel, 145-starting recess;

[0039] 15- load-bearing column, 151- ball bearing;

[0040] 16- pad, 161- arc groove;

[0041] 17-automatic tool changing mechanism, 171-tool claw, 172-elastic clamping convex;

[0042] 18-protective cover, 181-access entrance;

[0043] 100-tool, 1001-slot, 1002-tool handle shaft, 1003-anti-slip part. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It will be appreciated that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some but not all structures related to the present application are shown in the drawings. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the art without making creative work are within the scope of protection of the present application.

[0045] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0046] The present invention specifically provides a disc-type tool magazine with a tool self-locking function, such as Figure 1-Figure 8As shown, it includes: a power supply box 1, which includes a built-in motor, a gear transmission part and an output speed adjustment system, providing the main power source for the equipment. A support shaft 2 is fixedly installed in the middle of the power supply box 1, and a main turntable 3 is rotatably arranged on the support shaft 2. A mounting plate 4 is fixedly connected to the main turntable 3 by bolts. In this embodiment, twenty-two mounting openings are evenly opened on the edge of the mounting plate 4 along the circumferential direction, and a connecting rod 5 is fixedly connected in the mounting opening. An inner gear ring 6 is fixedly installed at the bottom of the main turntable 3. A driving gear 7 is connected to the output end of the power supply box 1 through a shaft and meshes with the inner gear ring 6 for transmission. As the power supply box 1 drives the driving gear 7, the main turntable 3 rotates with the inner gear ring 6, and a mounting plate 4 is fixedly connected to the top of the support shaft 2. Plate 8, a telescopic push rod 9 is fixedly installed on the mounting plate 8, a moving frame 10 is slidably arranged on the telescopic push rod 9, and the moving frame 10 is connected to the movable rod of the telescopic push rod 9, and the telescopic push rod 9 pushes the moving frame 10 to translate, and the telescopic push rod 9 is a pneumatic push rod; a knife sleeve 11 is movably hinged in the mounting mouth of the mounting plate 4, and the knife sleeve 11 is movably hinged on the connecting rod 5 through a connecting crank 111 provided thereon, so that the knife sleeve 11 can rotate and swing on the mounting plate 4 with the connecting rod 5 as the center; when in use, the knife sleeve 11 presents two states on the mounting plate 4, one is a vertical state perpendicular to the mounting plate 4, and the other is a straight state after the knife sleeve 11 is rotated ninety degrees with the connecting rod 5 as the rotation center, and the tool 100 to be stored is inserted into the knife sleeve 11.

[0047] according to Figure 5 As shown, the knife sheath 11 is integrally molded and cast, and a protruding reinforcing frame 112 is provided on the outer surface of the knife sheath 11, so that the knife sheath 11 has higher structural strength when in use, and the knife sheath 11 is not easy to crack when in use.

[0048] according to Figure 2 As shown, a support ring 12 is fixedly installed on the power supply box 1, and the support ring 12 is one circle larger than the mounting disk 4, so the mounting disk 4 is placed in the middle of the support ring 12, and the tool sleeve 11 is in a vertical state, and the upper surface of the support ring 12 is supported on the bottom of the tool sleeve 11. Therefore, when the tool sleeve 11 rotates with the mounting disk 4, it is supported by the support ring 12 to maintain a vertical state, and the tool sleeve 11 is perpendicular to the mounting disk 4, so that the tool 100 will not be affected by the centrifugal force and thrown out when it rotates in the tool sleeve 11.

[0049] according to Figure 4 and Fig.10As shown, a notch is formed on the support ring 12, and the notch is on the path through which the mobile frame 10 needs to slide out in translation, and a top block 102 is provided on the mobile frame 10. After the mobile frame 10 slides out, the top block 102 abuts against the connecting crank 111 and pushes the connecting crank 111 to move, thereby causing the knife sleeve 11 to swing to a straight state, and the knife sleeve 11 is in the notch of the support ring 12 in the straight state. When the knife sleeve 11 needs to rotate and swing to a vertical state, a hook 101 is also provided on the mobile frame 10. The function of the hook 101 is Two, one is that it can hook the knife sleeve 11 in a straight state and then move it back through the movable frame 10 to pull the knife sleeve 11 back to a vertical state, and the other is to cooperate with the top block 102 to form a passing gap. When the mounting plate 4 continues to rotate, the knife sleeve 11 will swing downward by itself after passing through the gap of the support ring 12. At this time, the passing gap between the curved hook 101 and the top block 102 can enable the connecting crank 111 on the knife sleeve 11 to slide along the inner wall of the curved hook 101, thereby allowing the knife sleeve 11 to pass through the gap area of ​​the support ring 12.

[0050] according to Figure 2 As shown, a load-bearing bearing 113 is rotatably installed on the outer wall of the tool sleeve 11, and the load-bearing bearing 113 is in contact with the surface of the support ring 12. When the tool sleeve 11 is supported by the load-bearing bearing 113 as a supporting point, the load-bearing bearing 113 can roll on the surface of the support ring 12 during the process that the tool sleeve 11 rotates following the mounting plate 4. Compared with the friction noise generated when the tool sleeve 11 directly contacts the surface of the support ring 12, the friction noise will be smaller.

[0051] according to Figure 3 and Figure 4 As shown, a raised beveled convex ring 41 is provided near the mounting opening on the mounting plate 4, and when the tool sleeve 11 is in a vertical state, the connecting crank 111 abuts against the beveled edge of the beveled convex ring 41, thereby preventing the tool sleeve 11 from tipping toward the center of the mounting plate 4 in a vertical state.

[0052] according to Figure 5-Figure 7As shown, a self-locking mechanism 13 for self-locking the tool 100 is provided at the root of the tool sleeve 11, and the self-locking mechanism 13 includes: a storage bin 131 provided at the root of the tool sleeve 11, and an access hole 132 connected to the storage bin 131 is provided in the center of the tool sleeve 11, and the tool 100 is placed in the tool sleeve 11, and the shank shaft 1002 on the tool 100 passes through the access hole 132 and enters into the storage bin 131, and four fan-shaped wedges 135 are symmetrically arranged in the storage bin 131, and the four fan-shaped wedges 135 are arranged in a ring around the access hole 132, and a circular hole is formed in the middle of the fan-shaped wedges 135 arranged around. After the shank shaft 1002 passes through the access hole 132 into the storage bin 131, the fan-shaped wedges 135 are separated from the bottom of the fan-shaped wedges 135, and then the fan-shaped wedges 135 are closed and pressed against the tool handle. Below the anti-slip portion 1003 of the shaft 1002, the shank shaft 1002 of the tool 100 is restricted from moving, and the tool 100 cannot be taken out of the tool sheath 11. A spring 136 is provided between the fan-shaped wedge 135 and the side wall of the accommodating bin 131, and the spring 136 is used to keep the four fan-shaped wedges 135 in contact with each other and closed; a lever 137 is fixedly provided on the fan-shaped wedge 135, and the opening of the accommodating bin 131 is sealed by a top cover 138, and a plurality of sliding openings 139 matching the position of the lever 137 are opened on the top cover 138, and the lever 137 is allowed to slide in the sliding opening 139, and by simultaneously pushing the four levers 137 away from each other, the fan-shaped wedge 135 can be disengaged from the anti-slip portion 1003, thereby allowing the tool 100 to be taken out of the tool sheath 11.

[0053] according to Figure 6 As shown, four limit blocks 133 are evenly arranged around the accommodating bin 131, and gaps are left between the four limit blocks 133 to accommodate the movement of the fan-shaped wedge 135. The limit blocks 133 limit the fan-shaped wedge 135, which can avoid the fan-shaped wedge 135 from dispersing after being pushed by the handle shaft 1002; a sliding groove 134 is opened on the side wall of the limit block 133 close to the fan-shaped wedge 135, and the fan-shaped wedge 135 slides in the sliding groove 134 on the limit blocks 133 on both sides. Through the guiding effect of the sliding groove 134, the fan-shaped wedge 135 can only be separated and closed by translation. In this way, the fan-shaped wedge 135 can be avoided from being misaligned with each other after being pushed by the handle shaft 1002.

[0054] according to Figure 7As shown, the upper part of the fan-shaped wedge 135 contacts the side of the shank shaft 1002 with a right-angled side 1351. By means of the right-angled side 1351 resting against the anti-slip portion 1003 of the shank shaft 1002, the fan-shaped wedge 135 can clamp the shank shaft 1002 to the maximum extent, so that the tool 100 cannot fall off. At the same time, the edge directly below the right-angled side 1351 of the fan-shaped wedge 135 is a first bevel 1352 inclined outwardly. The anti-slip portion 1003 opens the closed fan-shaped wedge 135 along the first bevel 1352, so that the shank shaft 1002 can be better clamped in the fan-shaped wedge 135.

[0055] according to Figure 3 As shown, a release device 14 is installed on the power supply box 1 just below the moving frame 10. The tool sleeve 11 in the vertical state is transformed into a straight state under the push of the moving frame 10. The lever 137 on the tool sleeve 11 in the straight state can be just stuck in the release device 14. The release device 14 pushes the four levers 137 at the same time by rotating to separate the fan-shaped wedges 135 from each other, so as to achieve the effect of releasing the restriction of the tool 100, and the tool 100 can be taken out.

[0056] according to Figure 2 and Fig.10 As shown, the tool is taken out through the automatic tool changing mechanism 17 arranged on the power supply box 1. The automatic tool changing mechanism 17 can be realized by conventional technical means in this embodiment. The tool sleeve 11 is in a straight state, and the power supply box 1 drives the knife claw 171 to rotate 180 degrees and then clamp it into the clamping slot 1001 of the tool 100. The elastic clamping protrusion 172 on the knife claw 171 is against the clamping slot 1001 to prevent the tool 100 from falling off. After the tool 100 is released from the locked state, the knife claw 171 moves downward with the tool 100 and then takes the tool 100 out of the tool sleeve 11. The knife claw 171 rotates 180 degrees again and transfers the tool 100 to the tool changing area, thus completing the operation of taking out and changing the tool.

[0057] according to Figure 1 As shown, a protective cover 18 is fixedly mounted on the telescopic push rod 9, and the protective cover 18 covers the telescopic push rod 9 for protection. At the same time, a through opening 181 is opened on the protective cover 18 to allow the moving frame 10 to pass through.

[0058] In one preferred embodiment, Figure 3 and Figure 8As shown, the release device 14 includes: a reduction box 141 and a drive motor 142. The reduction box 141 is installed on the power supply box 1 and is located directly below the mobile frame 10. The drive motor 142 is connected to the reduction box 141. The drive motor 142 is converted into a low-speed and high-torque output mode through the reduction box 141. A separation disk 143 is connected to the output end of the reduction box 141. The separation disk 143 is protruding with arc angles of the same number as the lever 137. The multiple arc angles are arranged outwardly with the same center. After the knife sleeve 11 is in a flat state, the lever 137 is clamped into the separation disk 143. The driving motor 142 starts to drive the separation disk 143 to rotate, and as the separation disk 143 rotates, the lever 137 starts to slide along the arc angle. After sliding to the end of the arc angle, the lever 137 has separated the fan-shaped wedge 135 to the farthest distance. At this time, the fan-shaped wedge 135 no longer restricts the tool handle shaft 1002, and the tool 100 can be taken out. Among them, the edge of the arc angle is the second bevel 144, and the second bevel 144 is more conducive to the end of the lever 137 being stuck into the starting recess 145 of the separation disk 143.

[0059] In one preferred embodiment, Figure 3 and Fig. 9 As shown, it also includes: a plurality of load-bearing columns 15 are arranged at intervals on the power supply box 1, and a ball 151 is rotatably set on the top of the load-bearing column 15, and the ball 151 contacts the surface of the mounting plate 4. When the mounting plate 4 is equipped with a large-mass tool 100 and follows the rotation, the load-bearing column 15 and the ball 151 cooperate to provide a stable support for the mounting plate 4 to prevent the mounting plate 4 from tilting to one side; a pad 16 is fixedly installed on the power supply box 1 and between the notches formed by the support ring 12, and an arc groove 161 matching the shape of the tool sleeve 11 is formed on the pad 16. The tool sleeve 11 in a flat state will fall into the arc groove 161, thereby ensuring that the tool sleeve 11 will not tilt in a straight state, so that the automatic tool changing mechanism 17 can accurately complete the tool removal operation.

[0060] The above-mentioned embodiments only express the preferred implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person skilled in the art, several modifications, improvements and substitutions can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A disc-type tool magazine with tool self-locking function, comprising: A power supply box (1); a support shaft (2) centrally mounted on the power supply box (1); a main turntable (3) rotatably mounted on the support shaft (2); a mounting plate (4) mounted on the main turntable (3); a connecting rod (5) mounted in mounting openings uniformly provided along the circumferential direction of the mounting plate (4); an inner gear ring (6) mounted on the bottom of the main turntable (3); a driving gear (7) connected to the output end of the power supply box (1) via a shaft and meshing with the inner gear ring (6) for transmission; The mounting plate (8) is fixedly arranged on the top of the support shaft (2); it is characterized in that it also includes: a telescopic push rod (9) installed on the mounting plate (8); a movable frame (10) slidably arranged on the telescopic push rod (9) and driven by the telescopic push rod (9); a knife sleeve (11) provided with a connecting crank (111) and movably hinged to the connecting rod (5) through the connecting crank (111); a support ring (12) installed on the power supply box (1); and the mounting plate (4) is arranged wherein the knife sleeve (11) is supported by the support ring (12) at the bottom to maintain a vertical state when the knife sleeve (11) rotates with the mounting plate (4); a top block (102) is provided on the moving frame (10) to push the connecting crank (111) to turn the knife sleeve (11) to a straight state; a hook (101) is provided on the moving frame (10) to hook the connecting crank (111) to pull back to turn the knife sleeve (11) to a vertical state; and a hole is provided on the support ring (12) to allow the knife sleeve (11) to rotate. ) is turned over through a notch; a self-locking mechanism (13) is arranged at the root of the knife sleeve (11) and is used to complete self-locking of the tool (100); a release device (14) is installed on the power supply box (1) directly below the mobile frame (10) and is used to release the locked tool (100) in the knife sleeve (11) in a straight state; an automatic tool changing mechanism (17) is arranged on the power supply box (1) and is used to grab the tool (100) in the knife sleeve (11) in a straight state; The self-locking mechanism (13) comprises: a storage bin (131) and a centrally opened access hole (132) are arranged at the root of the knife sleeve (11); a plurality of sector-shaped clamping wedges (135) are arranged in a ring around the access hole (132) in the storage bin (131); a knife handle shaft (1002) passes through the access hole (132) from the knife sleeve (11) and is placed in the storage bin (131), and is clamped by the sector-shaped clamping wedges (135); A spring (136) is arranged between the sector-shaped clamping wedge (135) and the side wall of the accommodating bin (131); a lever (137) is fixedly mounted on the sector-shaped clamping wedge (135); a top cover (138) is closed and arranged at the bin opening of the accommodating bin (131); the top cover (138) is provided with a plurality of sliding openings (139) matching the positions of the lever (137) and allowing the lever (137) to slide in the sliding openings (139); The release device (14) comprises: a reduction box (141) mounted on the power supply box (1); a drive motor (142) connected to the reduction box (141); a separation disc (143) protrudingly provided with arc angles equal in number to the shifting rod (137), the plurality of arc angles being arranged outwardly with the same center, and the separation disc (143) being driven and mounted on the reduction box (141); when the knife sleeve (11) is in a horizontal state, the shifting rod (137) is inserted into a starting recessed portion (145) on the separation disc (143), and after the separation disc (143) is driven by the drive motor (142) to rotate, the shifting rod (137) and the fan-shaped wedges (135) are separated from each other; the edge of the arc angle is a second hypotenuse (144); It also includes: the side of the upper part of the fan-shaped wedge (135) that contacts the handle shaft (1002) is a right-angled side (1351), and the edge directly below the right-angled side (1351) of the fan-shaped wedge (135) is a first beveled side (1352) inclined outward.

2. The disc-type tool magazine with tool self-locking function according to claim 1 is characterized in that: Also includes: A beveled edge convex ring (41) is mounted on the mounting plate (4); when the knife sleeve (11) is in a vertical state, the connecting crank (111) abuts against the beveled edge of the beveled edge convex ring (41).

3. The disc-type tool magazine with tool self-locking function according to claim 1, characterized in that: Also includes: A reinforcing frame (112) is arranged on the outer surface of the knife sleeve (11); and a load-bearing bearing (113) is rotatably mounted on the outer side wall of the knife sleeve (11) and is in contact with the surface of the support ring (12).

4. The disc-type tool magazine with tool self-locking function according to claim 1, characterized in that: Also includes: Load-bearing columns (15) are arranged at intervals on the power supply box (1); A ball (151) is rollingly arranged on the top of the load-bearing column (15) and is in contact with the surface of the mounting plate (4).

5. The disc-type tool magazine with tool self-locking function according to claim 1, characterized in that: Also includes: A backing plate (16) is installed on the power supply box (1) and is located between the notches formed on the support ring (12); an arc-shaped groove (161) matching the shape of the knife sleeve (11) is formed on the backing plate (16).

6. The disc-type tool magazine with tool self-locking function according to claim 2, characterized in that: Also includes: Limiting blocks (133) are arranged at intervals around the accommodating bin (131), so that the fan-shaped clamping wedge (135) is placed between the limiting blocks (133) to move.

7. The disc-type tool magazine with tool self-locking function according to claim 6, characterized in that: Also includes: A sliding groove (134) is formed on the side wall of the limiting block (133) close to the fan-shaped clamping wedge (135).

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