Tool changing device with chain tool magazine

Abstract

The invention belongs to the technical field of numerical control machine tools, and particularly relates to a tool changing device with a chain tool magazine. The tool changing device comprises a base, a supporting column and a top plate, the supporting column is fixedly connected to the top of the base, the top plate is fixedly connected to the top of the supporting column, an electric sliding rail is fixedly connected to the bottom of the top plate, and an upper sliding block is slidably connected to the bottom of the electric sliding rail; the bottom of the upper sliding block is fixedly connected with a first sliding rail. According to the automatic tool changing device, through cooperation of the intercepting arm and the electric push rod, dynamic tool taking under the condition that the tool pouch continuously moves is achieved, tool magazine equipment does not need to be shut down in the whole process, the tool changing efficiency and the continuous operation capacity of a tool magazine are greatly improved, and meanwhile the stress condition of the intercepting arm is sensed in real time through the pressure sensor; the electric push rod and the tool taking process are accurately controlled, tool changing operation is more accurate and stable, human intervention is reduced, and the automation level and the intelligent degree of the whole tool magazine system are improved.

Description

Technical Field

[0001] The invention relates to the technical field of numerically controlled machine tools, and in particular to a tool changing device with a chain tool magazine. Background Art

[0002] In modern manufacturing, fast and accurate tool replacement is of vital importance to improving processing efficiency and ensuring processing quality. Chain tool magazine, as a widely used tool storage and supply system, plays a key role in various types of CNC processing equipment. However, traditional chain tool magazine tool changing devices have gradually exposed some problems during use.

[0003] After searching, a Chinese patent application with application publication number CN115488676A discloses a tool changing device with a chain tool magazine, including a tool magazine body and a tool changing mechanism. The tool magazine body includes a supporting base plate, a chain assembly, a tool sleeve and a toggle assembly. A tool outlet is provided on the supporting base plate. The tool magazine body and the tool changing mechanism operate independently and cooperate with each other to realize the tool changing process.

[0004] The above-mentioned tool changing device adopts a relatively simple and direct method to exchange tools. It is necessary to move the tool changing mechanism to the specified tool position, stop the movement of the tool magazine and then take the tool. This method will inevitably cause a brief shutdown of the tool magazine equipment, seriously affecting production efficiency. It is urgent to design a tool changing device with a chain tool magazine to solve the above problems. Summary of the invention

[0005] Based on the technical problem that the existing tool changing device is not convenient for dynamic tool changing, the present invention proposes a tool changing device with a chain tool magazine.

[0006] The tool changing device with a chain tool magazine proposed by the present invention comprises a base, a pillar and a top plate, the pillar is fixedly connected to the top of the base, the top plate is fixedly connected to the top of the pillar, the bottom of the top plate is fixedly connected to an electric slide rail, the bottom of the electric slide rail is slidably connected to an upper sliding block, the bottom of the upper sliding block is fixedly connected to a first slide rail, the bottom of the first slide rail is slidably connected to a driven column, the top of the driven column is fixedly connected to a suspension frame, the end of the suspension frame away from the driven column is fixedly connected to a fixing hoop, the inside of the fixing hoop is fixedly connected to an electric push rod with a telescopic end facing downward, a clamping mechanism is provided at the bottom of the electric push rod, the middle part of the driven column is fixedly connected to a sleeve, the outer wall of the sleeve is rotatably connected to an intercepting arm, the intercepting arm and the sleeve are fixedly connected with the same second spring, the end of the intercepting arm close to the sleeve is fixedly connected to a trigger plate, and the outer wall of the sleeve is fixedly connected to a pressure sensor adapted to the trigger plate.

[0007] Preferably, a connecting frame is fixedly connected to the middle position of the bottom of the first slide rail, the bottom of the connecting frame is fixedly connected to the other first slide rail, both ends of the driven column are rotatably connected to pulleys, and the two pulleys are respectively slidably connected to the inside of the two first slide rails.

[0008] Preferably, an insertion rod is fixedly connected to one side of the pulley located above, a fixing ring is sleeved on the middle part of the insertion rod, the fixing ring is fixedly connected to one side of the adjacent first slide rail, and a push plate is fixedly connected to the end of the insertion rod away from the pulley, and an elastic rope is fixedly connected between the push plate and the fixing ring.

[0009] Preferably, the clamping mechanism includes a clamp, a limiting rod, a clamp top seat and a rotating rod. The clamp top seat is fixedly connected to the bottom of the electric push rod. The two clamps are symmetrically hinged on both sides of the bottom of the clamp top seat. The two limiting rods are symmetrically fixed under the fixing hoop. The two rotating rods are respectively rotatably connected to the bottom of the two limiting rods. The two rotating rods are respectively pressed on the top of the two clamps. The bottom of the two clamps on the side close to each other is provided with an anti-slip groove.

[0010] Preferably, the bottom of the fixing hoop is fixedly connected to a downward probe bracket, the bottom of the downward probe bracket is fixedly connected to a C-shaped part, the two ends of the C-shaped part are respectively located on both sides of the electric push rod, and the two limit rods are respectively fixedly connected to the bottom of the two ends of the C-shaped part.

[0011] Preferably, both sides of the top of the clamp are fixedly connected with second slide rails, and both ends of the rotating rod are respectively slidably connected to the inside of two second slide rails connected to adjacent clamps.

[0012] Preferably, the sleeve is slidably connected to the column body of the driven column, a stud is threadedly connected to one side of the sleeve, a knob is fixedly connected to one end of the stud located outside the sleeve, a pressing head is fixedly connected to one end of the stud located inside the sleeve, a positioning groove is provided on one side of the driven column, and the pressing head is slidably connected to the inside of the positioning groove.

[0013] Preferably, the outer wall of the sleeve is fixedly connected to two parallel shaft seats, the intercepting arm is rotatably connected between the two shaft seats, and a rubber pad is embedded on one side of the intercepting arm close to the second spring.

[0014] Preferably, the top of the base is fixedly connected to a plug-in disk, the pillar is rotatably connected to the middle position of the top of the plug-in disk, the top of the plug-in disk is provided with annular equidistantly distributed pin holes, the bottom of the pillar is fixedly connected to a pin bracket, a pin is plugged into one side of the pin bracket, and the bottom end of the pin is located inside one of the pin holes.

[0015] Preferably, the top of the base is fixedly connected to a guide rail, the top of the guide rail is slidably connected to a lower slider, the top of the lower slider is fixedly connected to a material receiving box, one side wall of the material receiving box is hinged with a baffle, the top of the baffle is fixedly connected to a speed bump, the inner walls on both sides of the material receiving box are fixedly connected to pressure plates, a first spring is fixedly connected between the two pressure plates and the baffle, and one side of the lower slider is fixedly connected to a pull handle.

[0016] Compared with the prior art, the present invention provides a tool changing device with a chain tool magazine, which has the following beneficial effects: 1. A tool changing device with a chain tool magazine is provided with an electric slide rail, a driven column, an intercepting arm, a trigger plate, a pressure sensor, and an electric push rod. During the tool taking process, the electric slide rail drives the intercepting arm to the path of the tool sleeve, and the tool sleeve continues to move forward along a predetermined trajectory under the drive of the tool magazine. During this process, the intercepting arm first contacts the tool sleeve, and the intercepting arm deflects under the drive of the tool sleeve. When the intercepting arm reaches its maximum deflectable angle and cannot continue to deflect, the tool sleeve continues to move forward and pushes the intercepting arm, the sleeve, the driven column and the electric push rod to move synchronously along the first slide rail, so that the electric push rod can remain stationary relative to the tool sleeve, thereby achieving the purpose of dynamic tool taking during the continuous movement of the tool sleeve. The entire process does not require shutting down the entire tool magazine equipment, which greatly improves the tool changing efficiency and continuous operation capacity of the tool magazine. At the same time, the pressure sensor is used to sense the force condition of the intercepting arm in real time, so as to achieve precise control of the electric push rod and the tool taking process, making the tool changing operation more accurate and stable, reducing human intervention, and improving the automation level and intelligence level of the entire tool magazine system.

[0017] 2. This tool changing device with a chain tool magazine is equipped with a first slide rail, an insert rod, a push plate and an elastic rope. When the driven column moves along the first slide rail driven by the tool sleeve, the upper pulley, the insert rod and the push plate move synchronously. During this process, the push plate and the fixed ring stretch the elastic rope. After the tool is taken out, the intercepting arm leaves the tool sleeve driven by the electric slide rail, and the elastic rope in the stretched state loses the external tension, and the driven column is driven by the insert rod to achieve automatic reset.

[0018] 3. This tool changing device with a chain tool magazine is provided with a limit rod, a rotating rod, a clamp and a second slide rail. When the electric push rod is extended or retracted, it drives the clamp top seat to move up and down. By limiting the outer side of the clamp by the rotating rod, the opening and closing angle of the clamp can be changed, thereby realizing the clamping and release of the tool. Through the cooperation of the electric push rod and the rotating rod, the tool can be quickly and accurately grasped and released by a simple transmission structure while the clamp is close to the tool. The rotating design of the rotating rod is beneficial to reducing the wear on the clamp. The second slide rail on the top of the clamp provides guiding and limiting functions for both ends of the rotating rod, so that the rotating rod can slide smoothly on the clamp, thereby improving the stability and accuracy of the rotating rod movement, further optimizing the working performance of the clamping mechanism, and ensuring the reliability of tool clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of a tool changing device with a chain tool magazine proposed by the present invention; Figure 2 A schematic structural diagram of a tool changing device with a chain tool magazine proposed by the present invention from another perspective; Figure 3 A schematic diagram of the top view of the tool changing device with a chain tool magazine proposed by the present invention; Figure 4 A schematic diagram of the partial structure of a tool changing device with a chain tool magazine proposed by the present invention; Figure 5 A schematic diagram of the sleeve and interception arm structure of a tool changing device with a chain tool magazine proposed by the present invention; Figure 6 This is a schematic diagram of the electric push rod and fixture structure of a tool changing device with a chain tool magazine proposed by the present invention; Figure 7 A tool changing device with a chain tool magazine proposed by the present invention Figure 6 Schematic diagram of the structure at A in FIG. Figure 8 This is a schematic diagram of the material receiving box structure of a tool changing device with a chain tool magazine proposed by the present invention.

[0020] In the figure: 1, base; 2, pillar; 3, top plate; 4, electric slide rail; 5, upper slide block; 6, first slide rail; 7, pulley; 8, driven column; 9, positioning groove; 10, sleeve; 11, interception arm; 12, rubber pad; 13, knob; 14, connecting frame; 15, suspension frame; 16, fixing hoop; 17, electric push rod; 18, clamp; 19, lower probe bracket; 20, C-shaped piece; 21, limit rod; 22, fixing ring; 23, plug rod; 24, push rod Plate; 25, elastic rope; 26, guide rail; 27, lower slider; 28, material collection box; 29, baffle; 30, speed bump; 31, pull handle; 32, latch bracket; 33, latch; 34, insert plate; 35, pressure plate; 36, first spring; 37, second spring; 38, clamp top seat; 39, stud; 40, pressing head; 41, shaft seat; 42, trigger plate; 43, pressure sensor; 44, second slide rail; 45, anti-slip groove; 46, rotating rod. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Reference Figure 1-8A tool changing device with a chain tool magazine comprises a base 1, a pillar 2 and a top plate 3, wherein the pillar 2 is fixedly connected to the top of the base 1, the top plate 3 is fixedly connected to the top of the pillar 2, the bottom of the top plate 3 is fixedly connected to an electric slide rail 4, the bottom of the electric slide rail 4 is slidably connected to an upper slider 5, the bottom of the upper slider 5 is fixedly connected to a first slide rail 6, the bottom of the first slide rail 6 is slidably connected to a driven column 8, the top of the driven column 8 is fixedly connected to a suspension bracket 15, and one end of the suspension bracket 15 away from the driven column 8 is fixedly connected There is a fixing hoop 16, and an electric push rod 17 with a telescopic end facing downward is fixedly connected inside the fixing hoop 16. A clamping mechanism is provided at the bottom of the electric push rod 17. A sleeve 10 is fixedly connected to the middle of the driven column 8. An intercepting arm 11 is rotatably connected to the outer wall of the sleeve 10. A second spring 37 is fixedly connected between the intercepting arm 11 and the sleeve 10. A trigger plate 42 is fixedly connected to the end of the intercepting arm 11 close to the sleeve 10, and a pressure sensor 43 adapted to the trigger plate 42 is fixedly connected to the outer wall of the sleeve 10.

[0023] In the present invention, a connecting frame 14 is fixedly connected to the middle position of the bottom of the first slide rail 6, and the bottom of the connecting frame 14 is fixedly connected to another first slide rail 6. Both ends of the driven column 8 are rotatably connected to pulleys 7, and the two pulleys 7 are respectively slidably connected to the inside of the two first slide rails 6. The pulleys 7 at both ends of the driven column 8 slide in the two first slide rails 6 respectively, so that the driven column 8 can move more smoothly. The connecting frame 14 connects the two first slide rails 6, thereby enhancing the stability of the structure.

[0024] In the present invention, an insert rod 23 is fixedly connected to one side of the upper pulley 7, a fixing ring 22 is sleeved in the middle of the insert rod 23, the fixing ring 22 is fixedly connected to one side of the adjacent first slide rail 6, and a push plate 24 is fixedly connected to the end of the insert rod 23 away from the pulley 7, and an elastic rope 25 is fixedly connected between the push plate 24 and the fixing ring 22. When the driven column 8 moves along the first slide rail 6 driven by the knife sleeve, the upper pulley 7, the insert rod 23 and the push plate 24 move synchronously. During this process, the push plate 24 and the fixing ring 22 stretch the elastic rope 25. After the knife is removed, the intercepting arm 11 leaves the knife sleeve driven by the electric slide rail 4, and the elastic rope 25 in the stretched state loses the external tension, and the driven column 8 is driven by the insert rod 23 to achieve automatic reset.

[0025] In the present invention, the clamping mechanism includes a clamp 18, a limit rod 21, a clamp top seat 38 and a rotating rod 46. The clamp top seat 38 is fixedly connected to the bottom of the electric push rod 17. The two clamps 18 are symmetrically hinged on both sides of the bottom of the clamp top seat 38. The two limit rods 21 are symmetrically fixed below the fixing hoop 16. The two rotating rods 46 are respectively rotatably connected to the bottom of the two limit rods 21. The two rotating rods 46 are respectively pressed on the top of the two clamps 18. The bottom of the two clamps 18 close to each other is provided with an anti-slip groove 45, which can increase the anti-slip groove 45. The friction between the clamp 18 and the tool is increased to prevent the tool from slipping. The rotating design of the rotating rod 46 is beneficial to reducing the wear on the clamp 18. The extension and retraction of the electric push rod 17 can drive the clamp top seat 38 to move up and down. The outer side of the clamp 18 is limited by the limit rod 21 and the rotating rod 46, and the opening and closing angle of the clamp 18 can be changed, thereby achieving the clamping and release of the tool. The electric push rod 17 is controlled to retract upward. Through the cooperation of the electric push rod 17 and the rotating rod 46, the tool can be pulled upward from the tool holder while clamping the tool.

[0026] In the present invention, a downward-probing bracket 19 is fixedly connected to the bottom of the fixing hoop 16, and a C-shaped member 20 is fixedly connected to the bottom of the downward-probing bracket 19. The two ends of the C-shaped member 20 are respectively located on both sides of the electric push rod 17, and two limit rods 21 are respectively fixedly connected to the bottom of the two ends of the C-shaped member 20. The downward-probing bracket 19 and the C-shaped member 20 at the bottom of the fixing hoop 16 provide stable support for the limit rod 21, so that the limit rod 21 can move synchronously with the electric push rod 17, accurately position and fix the rotating rod 46, and ensure the stable fit between the rotating rod 46 and the clamp 18.

[0027] In the present invention, second slide rails 44 are fixedly connected to both sides of the top of the clamp 18, and the two ends of the rotating rod 46 are respectively slidably connected to the inside of the two second slide rails 44 connected to the adjacent clamps 18. The second slide rails 44 on the top of the clamp 18 provide guiding and limiting functions for the two ends of the rotating rod 46, so that the rotating rod 46 can slide smoothly on the clamp 18, thereby improving the stability and accuracy of the movement of the rotating rod 46, further optimizing the working performance of the clamping mechanism, and ensuring the reliability of tool clamping.

[0028] In the present invention, the sleeve 10 is slidably connected to the column body of the driven column 8, a stud 39 is threadedly connected to one side of the sleeve 10, a knob 13 is fixedly connected to the end of the stud 39 located outside the sleeve 10, and a pressing head 40 is fixedly connected to the end of the stud 39 located inside the sleeve 10. A positioning groove 9 is provided on one side of the driven column 8, and the pressing head 40 is slidably connected to the inside of the positioning groove 9. The sleeve 10 can slide up and down along the driven column 8, thereby adjusting the height of the intercepting arm 11 to adapt to different types of knife sleeves. After the height adjustment of the sleeve 10 is completed, the stud 39 is rotated by the knob 13 to make the pressing head 40 press the inner wall of the positioning groove 9 to complete the positioning of the sleeve 10 and expand the scope of application of the device.

[0029] In the present invention, the outer wall of the sleeve 10 is fixedly connected to two parallel shaft seats 41, the intercepting arm 11 is rotatably connected between the two shaft seats 41, and a rubber pad 12 is embedded on the side of the intercepting arm 11 close to the second spring 37. The intercepting arm 11 is rotatably connected to the sleeve 10 through the shaft seat 41, and the rubber pad 12 plays a buffering and protective role in the process of the intercepting arm 11 intercepting the knife sleeve.

[0030] In the present invention, a plug disc 34 is fixedly connected to the top of the base 1, and the pillar 2 is rotatably connected to the middle position of the top of the plug disc 34. The top of the plug disc 34 is provided with annular equidistantly distributed pin holes, and the bottom of the pillar 2 is fixedly connected to a pin bracket 32. A pin 33 is inserted on one side of the pin bracket 32, and the bottom end of the pin 33 is located inside one of the pin holes. The pin 33 is pulled out and the angle of the tool changing device can be adjusted by rotating the pillar 2. The pin 33 is reinserted into the pin bracket 32, and the bottom of the pin 33 is inserted into the corresponding pin hole, thereby fixing the adjusted angle of the pillar 2, so that the tool changing device can adapt to different working scenarios and tool replacement requirements, thereby improving the applicability and flexibility of the device.

[0031] The top of the base 1 is fixedly connected with a guide rail 26, and the top of the guide rail 26 is slidably connected with a lower slider 27. The top of the lower slider 27 is fixedly connected with a material collection box 28. A baffle 29 is hinged on one side of the box wall of the material collection box 28, and a speed reduction belt 30 is fixedly connected to the top of the baffle 29. The inner walls on both sides of the material collection box 28 are fixedly connected with pressure plates 35, and a first spring 36 is fixedly connected between the two pressure plates 35 and the baffle 29. A pull handle 31 is fixedly connected to one side of the lower slider 27 to control the removed tool to fall into the material collection box 28. When the tool falls into the material collection box 28, an impact force is generated on the baffle 29. The pressure plate 35 is connected to the baffle 29 by a first spring 36, and the first spring 36 can play a buffering role. The speed reduction belt 30 can slow down the speed at which the tool falls into the material collection box 28, and the pull handle 31 is convenient for the user to pull the lower slider 27 to move the material collection box 28, which is convenient for the collection and arrangement of the tools.

[0032] When in use, the tool changing device with chain tool magazine is installed as a whole at the tool changing station of the chain tool magazine, and a stable supporting frame is constructed by the base 1, the pillar 2 and the top plate 3. The first slide rail 6 is adapted to the movement trajectory of the tool sleeve. In the initial state, the clamping mechanism is debugged according to the movement trajectory of the tool sleeve and the specifications of the tool sleeve to ensure that the tool sleeve passes between the two clamps 18 of the clamping mechanism during the movement, and then the electric slide rail 4 drives the upper slider 5 to move to one end close to the pillar 2 to prepare for subsequent actions. When the tool needs to be changed, the electric slide rail 4 drives the upper slider 5 in the reverse direction to move away from the pillar 2 until the intercepting arm 11 reaches the path of the tool sleeve, and the tool sleeve continues to move along the predetermined trajectory under the drive of the tool magazine. During this process, the intercepting arm 11 first When the tool sleeve is in contact, the intercepting arm 11 is deflected by the tool sleeve, and the second spring 37 buffers the force on the intercepting arm 11. When the intercepting arm 11 reaches its maximum deflectable angle and cannot continue to deflect, the tool sleeve continues to move forward and pushes the intercepting arm 11, the sleeve 10, the driven column 8 and the electric push rod 17 to move synchronously along the first slide rail 6, so that the electric push rod 17 can remain stationary relative to the tool sleeve. The deflection of the intercepting arm 11 drives the trigger plate 42 to compress the pressure sensor 43, and the electric signal generated is used to control the electric push rod 17 to retract upward. The clamping mechanism moves upward together with the electric push rod 17, and clamps the tool during the rising process, and pulls the tool out of the tool sleeve. Then the electric slide rail 4 drives the upper slider 5 to reset, thereby completing the tool removal.

[0033] The above-mentioned tool taking process realizes dynamic tool taking while the tool sleeve is in continuous motion. The whole process does not require shutting down the tool magazine equipment, which greatly improves the tool changing efficiency and continuous operation capacity of the tool magazine. At the same time, the pressure sensor 43 is used to sense the force condition of the intercepting arm 11 in real time, so as to realize precise control of the electric push rod 17 and the tool taking process, making the tool changing operation more accurate and stable, reducing human intervention, and improving the automation level and intelligence level of the entire tool magazine system.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A tool changing device with a chain tool magazine, comprising a base (1), a support (2) and a top plate (3), wherein the support (2) is fixedly connected to the top of the base (1), and the top plate (3) is fixedly connected to the top of the support (2), characterized in that: The bottom of the top plate (3) is fixedly connected to an electric slide rail (4), the bottom of the electric slide rail (4) is slidably connected to an upper slide block (5), the bottom of the upper slide block (5) is fixedly connected to a first slide rail (6), the bottom of the first slide rail (6) is slidably connected to a driven column (8), the top of the driven column (8) is fixedly connected to a suspension frame (15), one end of the suspension frame (15) away from the driven column (8) is fixedly connected to a fixing hoop (16), and the inside of the fixing hoop (16) is fixedly connected to an electric push rod with a telescopic end facing downward. The electric push rod (17) is provided with a clamping mechanism at the bottom thereof, a sleeve (10) is fixedly connected to the middle of the driven column (8), an interception arm (11) is rotatably connected to the outer wall of the sleeve (10), a second spring (37) is fixedly connected between the interception arm (11) and the sleeve (10), a trigger plate (42) is fixedly connected to one end of the interception arm (11) close to the sleeve (10), and a pressure sensor (43) adapted to the trigger plate (42) is fixedly connected to the outer wall of the sleeve (10).

2. A tool changing device with a chain tool magazine according to claim 1, characterized in that: A connecting frame (14) is fixedly connected to the middle position of the bottom of the first slide rail (6), and the bottom of the connecting frame (14) is fixedly connected to another first slide rail (6). Both ends of the driven column (8) are rotatably connected to pulleys (7), and the two pulleys (7) are respectively slidably connected to the inside of the two first slide rails (6).

3. A tool changing device with a chain tool magazine according to claim 2, characterized in that: A plug rod (23) is fixedly connected to one side of the pulley (7) located above, a fixing ring (22) is sleeved on the middle of the plug rod (23), the fixing ring (22) is fixedly connected to one side of an adjacent first slide rail (6), and a push plate (24) is fixedly connected to one end of the plug rod (23) away from the pulley (7), and an elastic rope (25) is fixedly connected between the push plate (24) and the fixing ring (22).

4. The tool changing device with a chain tool magazine according to claim 1, characterized in that: The clamping mechanism comprises a clamp (18), a limiting rod (21), a clamp top seat (38) and a rotating rod (46); the clamp top seat (38) is fixedly connected to the bottom of the electric push rod (17); the two clamps (18) are symmetrically hinged on both sides of the bottom of the clamp top seat (38); the two limiting rods (21) are symmetrically fixed below the fixing hoop (16); the two rotating rods (46) are respectively rotatably connected to the bottom of the two limiting rods (21); the two rotating rods (46) are respectively pressed on the top of the two clamps (18); and the bottoms of the two clamps (18) on the sides close to each other are both provided with anti-slip grooves (45).

5. The tool changing device with a chain tool magazine according to claim 4, characterized in that: The bottom of the fixing hoop (16) is fixedly connected to a downward-reaching bracket (19), the bottom of the downward-reaching bracket (19) is fixedly connected to a C-shaped member (20), the two ends of the C-shaped member (20) are respectively located on both sides of the electric push rod (17), and the two limit rods (21) are respectively fixedly connected to the bottom of the two ends of the C-shaped member (20).

6. The tool changing device with a chain tool magazine according to claim 5, characterized in that: The second slide rails (44) are fixedly connected to both sides of the top of the clamp (18), and the two ends of the rotating rod (46) are respectively slidably connected to the inside of the two second slide rails (44) connected to the adjacent clamps (18).

7. The tool changing device with a chain tool magazine according to claim 1, characterized in that: The sleeve (10) is slidably connected to the column body of the driven column (8); a stud (39) is threadedly connected to one side of the sleeve (10); an end of the stud (39) located outside the sleeve (10) is fixedly connected to a knob (13); an end of the stud (39) located inside the sleeve (10) is fixedly connected to a pressing head (40); a positioning groove (9) is provided on one side of the driven column (8); and the pressing head (40) is slidably connected to the inside of the positioning groove (9).

8. The tool changing device with a chain tool magazine according to claim 1, characterized in that: The outer wall of the sleeve (10) is fixedly connected to two parallel shaft seats (41), the interception arm (11) is rotatably connected between the two shaft seats (41), and a rubber pad (12) is embedded on one side of the interception arm (11) close to the second spring (37).

9. The tool changing device with a chain tool magazine according to claim 1, characterized in that: The top of the base (1) is fixedly connected to an insertion plate (34), the support (2) is rotatably connected to the middle position of the top of the insertion plate (34), the top of the insertion plate (34) is provided with annular equidistantly distributed pin holes, the bottom of the support (2) is fixedly connected to a pin bracket (32), one side of the pin bracket (32) is plugged with a pin (33), and the bottom end of the pin (33) is located inside one of the pin holes.

10. The tool changing device with a chain tool magazine according to claim 1, characterized in that: The top of the base (1) is fixedly connected to a guide rail (26), the top of the guide rail (26) is slidably connected to a lower slider (27), the top of the lower slider (27) is fixedly connected to a material receiving box (28), a baffle (29) is hingedly connected to one side wall of the material receiving box (28), the top of the baffle (29) is fixedly connected to a speed bump (30), the inner walls on both sides of the material receiving box (28) are fixedly connected to pressure plates (35), a first spring (36) is fixedly connected between the two pressure plates (35) and the baffle (29), and a pull handle (31) is fixedly connected to one side of the lower slider (27).

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