Tool changing device for glass machining center

Abstract

The invention relates to the technical field of numerical control automation equipment, and discloses a tool changing device for a glass machining center, which comprises a transverse plate, a shell, a cylinder chute mechanism, a bracket mechanism, a rotary dismounting mechanism and a tool bit. By arranging the rotary dismounting mechanism, the number of moving parts is reduced, and the movement inertia is reduced through horizontal axial movement; vibration impact generated by large-amplitude swing of a mechanical arm or rotation of a tool magazine during high-speed tool changing is restrained, the tool changer is suitable for glass finish machining scenes sensitive to vibration, meanwhile, the movement stability is improved through a sliding groove matching structure of the inner cylinder and the inner shell, the unbalance loading abrasion risk is reduced, and by arranging the double-end clamping mechanism and utilizing geometric constraint of a special-shaped sliding groove, the machining precision is improved. The rotary drum synchronously drives the double clamping blocks to complete self-adaptive closing of 20-40 degrees in a limited linear stroke, the clamping blocks are in self-adaptive clamping connection with the curved surface of the tool head, the problem that a traditional claw type mechanical arm is abraded, so that clamping force is attenuated or a tool is thrown away is solved, and the claw type mechanical arm is particularly suitable for the working condition that heavy tools are frequently replaced in the glass machining process.

Description

Technical Field

[0001] This invention relates to the field of CNC automation equipment technology, and more specifically to a tool changing device for a glass processing center. Background Technology

[0002] Tool changing devices for glass processing are key components used in glass processing centers or special-purpose machine tools. Their core function is to automate tool changing to meet the needs of different cutting, grinding, drilling, and other processes, thereby improving processing efficiency and accuracy. These devices include tool magazine systems, robotic arms, and tool changing mechanisms. Existing automatic tool changers rely on a separate rotary drive unit for tool disassembly and clamping, which, in conjunction with a complex linkage or cam mechanism, enables the opening and closing of the grippers. Additionally, a linear actuator is required to complete the axial tool removal action. This separate design results in a long transmission chain and numerous moving parts, increasing manufacturing costs and failure rates, and leading to reduced tool changing accuracy. Furthermore, traditional robotic grippers generally use high-precision machined V-blocks or fixed-profile grippers, which can ensure the clamping rigidity of standard tools, but cannot be compatible with large-diameter irregular grinding heads or non-standard diamond tools commonly used in glass processing. Frequent replacement of dedicated grippers will lead to a significant reduction in production efficiency. Summary of the Invention

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a tool changing device for a glass processing center to solve the problems existing in the background art.

[0004] The present invention provides the following technical solution: a tool changing device for a glass processing center, comprising a horizontal plate, a housing fixedly connected to the bottom of the horizontal plate in a circumferential direction, a cylinder slide mechanism fixedly connected to the bottom of the horizontal plate and the inner side of the housing, a support mechanism provided on the bottom of the horizontal plate and one side of the cylinder slide mechanism, a rotating disassembly mechanism fixedly connected to one side of the support mechanism, and a tool head provided inside the rotating disassembly mechanism; Furthermore, the device uses a rotating disassembly mechanism to lock and restrict the tool head, and then uses a support mechanism to complete the rotation to reach the tool magazine position for tool placement and tool changing operations.

[0005] Furthermore, the cylinder slide mechanism includes a large slide fixedly connected to one side of the top of the horizontal plate. A base is fixedly connected to the top of the horizontal plate and one side of the large slide. A cylinder is fixedly connected to the inner side of the base. A slide rod is fixedly and slidably connected to one side of the cylinder. A connecting plate is fixedly connected to the other side of the slide rod. A slider is provided at the other end of the connecting plate near the cylinder and the top of the large slide.

[0006] Furthermore, the support mechanism includes a second base fixedly connected to the top of the horizontal plate on the side away from the large slide groove. A first rotating rod is rotatably connected to the inner side of the second base. A gear is provided on the side of the first rotating rod near the large slide groove and the top of the slider. A fixing sleeve is fixedly connected to the inner side of the second base and the outer side of the first rotating rod. A locking block is fixedly connected to the outer side of the fixing sleeve. A fixing block is fixedly connected to one side of the locking block.

[0007] Furthermore, cylinder one can drive slide rod one to reciprocate along the large slide groove. A connecting plate is fixedly connected to the other side of slide rod one, so the connecting plate and slide rod one will move synchronously. The connecting plate will then drive the slider to move linearly on the large slide groove. Through the meshing of the gears, the linear movement of the slider will cause the gear to rotate. The gear and rotating rod one are fixedly connected, so they will also rotate together. Rotating rod one will then drive the fixed sleeve, locking block and fixing block to rotate together. By adjusting the displacement generated by the slider, the rotation angle of the locking block and fixing block can be controlled, and the maximum rotation can be 20 degrees to 40 degrees.

[0008] Furthermore, the rotating disassembly mechanism includes a cylinder one fixedly connected to the other side of the fixed block, a cylinder two fixedly connected to the other side of the cylinder one, a cylinder three fixedly connected to the other side of the cylinder two, a cylinder four fixedly connected to the other side of the cylinder three, and a rotating cylinder fixedly connected to the other end of the cylinder four.

[0009] Furthermore, a spring is fixedly connected to the other side of the fixing block and the inside of the second cylinder, and a cylinder is slidably connected to the other side of the spring and the inside of the first cylinder. A rotating rod is fixedly connected to the other side of the cylinder. An inner locking mechanism is provided on the inner side of the second cylinder and the outer side of the rotating rod. A double-headed clamping mechanism is provided on the other side of the inner locking mechanism, and a cutting head is provided on the inner side of the double-headed clamping mechanism.

[0010] Furthermore, the inner locking mechanism includes an inner shell that is slidably connected to the outside of the rotating rod two. An inner cylinder is provided inside the inner shell and outside the rotating rod two. An outer protrusion is fixedly connected to the outside of the inner cylinder.

[0011] Furthermore, a short rod is fixedly connected to the other end of the inner cylinder, and the double-headed clamping mechanism includes a straight rod fixedly connected to the other end of the inner cylinder and the outside of the short rod, with double round rods fixedly connected to both ends of the straight rod.

[0012] Furthermore, a rotating cylinder is rotatably connected to the outside of the double round rod. A shaped groove is provided on the outer surface of the rotating cylinder near the screw. A clamping block is fixedly connected to the end of the rotating cylinder away from the double round rod, and a cutting head is clamped on the inner side of the clamping block.

[0013] Furthermore, when a tool change is needed, cylinder two will drive rotating rod two to move left and right on the horizontal plane. First, cylinder two pulls rotating rod two to move towards the side closer to cylinder two. Rotating rod two drives the inner cylinder fixedly connected to the outside, so the inner cylinder also moves towards cylinder two along the sliding groove on the inner side of the inner shell. The other end of the inner cylinder is fixedly connected to a straight rod, which will drive the rotating cylinder to move synchronously towards cylinder two. During the movement, the irregular sliding groove set on the rotating cylinder is restricted by its top screw. The screw is engaged inside the irregular sliding groove and is also fixedly connected to cylinder four. Therefore, while the rotating cylinder moves towards cylinder two, it will also rotate around the double round rod under the limitation of the screw to complete an angle greater than 10 degrees and less than 10 degrees, engaging and pressing the clamping block against the tool head. The rotation completes the function of clamping the tool. The movement towards cylinder two completes the disassembly of the tool. After clamping and disassembly, the tool is flipped under the action of the locking block and the fixing block, and the disassembled tool is transported to the tool magazine position. At this time, cylinder two pulls rotating rod two to move away from cylinder two. Rotating rod two drives the inner cylinder that is fixedly connected to the outside. Therefore, the inner cylinder also moves away from cylinder two along the sliding groove on the inner side of the inner shell. The other end of the inner cylinder is fixedly connected to a straight rod. The straight rod drives the rotating cylinder to move synchronously away from cylinder two. During the movement, the irregular sliding groove set on the rotating cylinder is restricted by its top screw. Under the limitation of the screw, it rotates around the double round rod at an angle greater than 10 degrees and less than 10 degrees, which unfolds the clamping blocks and relaxes the clamping on the tool head, preparing for the replacement of a new tool.

[0014] The technical effects and advantages of this invention are as follows: This invention features a rotating disassembly mechanism. A single cylinder drives a horizontally moving rotating rod and a two-linked inner cylinder. With the guidance of a shaped sliding groove and a fixed screw, linear displacement is converted into a precise rotating clamping action of the rotating cylinder. Simultaneously, axial traction is completed for tool disassembly. This simplifies the complex transmission chain required by the separate clamping unit and tool removal device in traditional tool changing mechanisms, reduces the number of moving parts, and reduces the moment of inertia through horizontal axial movement. It suppresses the vibration and impact caused by the large swing of the robot arm or the rotation of the tool magazine during high-speed tool changing, making it suitable for vibration-sensitive glass finishing scenarios. At the same time, the sliding groove structure between the inner cylinder and the inner shell improves motion stability and reduces the risk of off-center wear.

[0015] This invention features a double-headed clamping mechanism that utilizes the geometric constraints of irregularly shaped grooves to enable the rotating drum to synchronously drive the double clamping blocks to complete a 20-40 degree adaptive closure within a limited linear stroke. The lever-type clamping structure generates radial clamping force through a short-stroke cylinder. The curved adaptive snap-fit ​​design between the clamping blocks and the tool head overcomes the compatibility limitations with non-standard tools, such as large-diameter glass grinding heads and irregularly shaped diamond tools. Furthermore, the coordinated control of spring preload and cylinder return ensures high rigidity locking during clamping and rapid, impact-free release during tool release. This solves the problem of clamping force attenuation or tool slippage caused by wear in traditional claw-type robotic arms, making it particularly suitable for glass processing applications where heavy tools need frequent replacement. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 This is a schematic diagram of the overall structure of the present invention without its shell.

[0018] Figure 3 This is a schematic diagram of the cylinder slide mechanism of the present invention.

[0019] Figure 4 This is a schematic diagram of the support mechanism structure of the present invention.

[0020] Figure 5 This is a schematic diagram of the rotating disassembly mechanism of the present invention.

[0021] Figure 6 This is a cross-sectional schematic diagram of the rotating disassembly mechanism of the present invention.

[0022] Figure 7 This is a schematic diagram of the internal locking mechanism of the present invention.

[0023] Figure 8 This is an exploded view of the dual-head clamping mechanism of the present invention.

[0024] Figure 9 This is a schematic diagram of the rotating drum structure of the present invention.

[0025] The attached diagram is labeled as follows: 1. Outer shell; 2. Horizontal plate; 3. Rotating disassembly mechanism; 301. Cylinder 1; 302. Cylinder 2; 303. Cylinder 3; 304. Cylinder 4; 3041. Screw; 305. Double-headed clamping mechanism; 3051. Rotating cylinder; 3052. Clamping block; 3053. Irregular groove; 3054. Straight rod; 3055. Double round rod; 306. Rotating rod 2; 307. Cylinder 2; 3071. Spring; 308. Internal clamping mechanism. Structure; 3081, Inner shell; 3082, Inner cylinder; 3083, Outer protrusion; 3084, Short rod; 4, Cutting head; 5, Cylinder slide mechanism; 501, Large slide; 502, Base one; 503, Cylinder one; 504, Slide rod one; 505, Connecting plate; 506, Slider; 507, Gear; 508, Rotating rod one; 6, Support mechanism; 601, Base two; 602, Locking block; 603, Fixing block; 604, Fixing sleeve. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The tool changing device for glass processing centers involved in the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Reference Figure 1 and Figure 2 The present invention provides a tool changing device for a glass processing center, including a horizontal plate 2, characterized in that: a housing 1 is fixedly connected to the bottom of the horizontal plate 2 in a circumferential direction; a cylinder slide mechanism 5 is fixedly connected to the bottom of the horizontal plate 2 and the inner side of the housing 1; a support mechanism 6 is provided on the bottom of the horizontal plate 2 and one side of the cylinder slide mechanism 5; a rotating disassembly mechanism 3 is fixedly connected to one side of the support mechanism 6; and a tool head 4 is provided inside the rotating disassembly mechanism 3. Reference Figure 1 and Figure 2 The device uses a rotating disassembly mechanism 3 to lock and restrict the tool head 4, and then uses a support mechanism 6 to complete a 180-degree flip to reach the tool magazine position for tool placement and tool changing operations.

[0028] Reference Figure 3 The cylinder slide mechanism 5 includes a large slide 501 fixedly connected to one side of the top of the horizontal plate 2. A base 502 is fixedly connected to the top of the horizontal plate 2 and one side of the large slide 501. A cylinder 503 is fixedly connected to the inner side of the base 502. A slide rod 504 is fixedly and slidably connected to one side of the cylinder 503. A connecting plate 505 is fixedly connected to the other side of the slide rod 504. A slider 506 is provided at the other end of the connecting plate 505 near the side of the cylinder 503 and the top of the large slide 501.

[0029] Reference Figure 4 The support mechanism 6 includes a base 601 fixedly connected to the top of the horizontal plate 2 on the side away from the large slide 501. A rotating rod 508 is rotatably connected to the inner side of the base 601. A gear 507 is provided on the side of the rotating rod 508 near the large slide 501 and the top of the slider 506. A fixing sleeve 604 is fixedly connected to the inner side of the base 601 and the outer side of the rotating rod 508. A locking block 602 is fixedly connected to the outer side of the fixing sleeve 604. A fixing block 603 is fixedly connected to one side of the locking block 602.

[0030] Reference Figure 3 and Figure 4 Cylinder 503 drives slide bar 504 to reciprocate along large slide groove 501. A connecting plate 505 is fixedly connected to the other side of slide bar 504, so the connecting plate 505 and slide bar 504 will move synchronously. The connecting plate 505 will drive slider 506 to move linearly on large slide groove 501. Through the meshing of the gears, the linear movement of slider 506 will cause gear 507 to rotate. Gear 507 and rotating rod 508 are fixedly connected, so they will also rotate together. Rotating rod 508 will drive fixed sleeve 604, locking block 602 and fixed block 603 to rotate together. By adjusting the displacement generated by slider 506, the rotation angle of locking block 602 and fixed block 603 can be controlled, and a maximum rotation of 180 degrees can be completed.

[0031] Reference Figure 5 The rotating disassembly mechanism 3 includes a cylinder 301 fixedly connected to the other side of the fixed block 603, a cylinder 302 fixedly connected to the other side of the cylinder 301, a cylinder 303 fixedly connected to the other side of the cylinder 302, a cylinder 304 fixedly connected to the other side of the cylinder 303, and a rotating cylinder 3051 fixedly connected to the other end of the cylinder 304.

[0032] Reference Figure 6 A spring 3071 is fixedly connected to the other side of the fixed block 603 and the inside of the second cylinder 302. A cylinder 307 is slidably connected to the other side of the spring 3071 and the inside of the first cylinder 301. A rotating rod 306 is fixedly connected to the other side of the cylinder 307. An inner clamping mechanism 308 is provided on the inner side of the second cylinder 302 and the outer side of the rotating rod 306. A double-headed clamping mechanism 305 is provided on the other side of the inner clamping mechanism 308. A cutter head 4 is provided on the inner side of the double-headed clamping mechanism 305.

[0033] Reference Figure 7 The inner locking mechanism 308 includes an inner shell 3081 that is slidably connected to the outside of the rotating rod 306. An inner cylinder 3082 is provided inside the inner shell 3081 and outside the rotating rod 306. An outer protrusion 3083 is fixedly connected to the outside of the inner cylinder 3082.

[0034] Reference Figure 8 The other end of the inner cylinder 3082 is fixedly connected to a short rod 3084. The double-headed clamping mechanism 305 includes a straight rod 3054 fixedly connected to the other end of the inner cylinder 3082 and the outside of the short rod 3084. The two ends of the straight rod 3054 are fixedly connected to double round rods 3055.

[0035] Reference Figure 9 A rotating cylinder 3051 is rotatably connected to the outside of the double round rod 3055. A special-shaped groove 3053 is provided on the outer surface of the rotating cylinder 3051 near the screw 3041. A clamping block 3052 is fixedly connected to the end of the rotating cylinder 3051 away from the double round rod 3055. A cutting tool head 4 is clamped on the inner side of the clamping block 3052.

[0036] Reference Figure 7 and Figure 8 When a tool change is needed, cylinder 2 307 drives rotating rod 2 306 to move left and right on the horizontal plane. First, cylinder 2 307 pulls rotating rod 2 306 towards the side closer to cylinder 2 302. Rotating rod 2 306 drives the externally fixed inner cylinder 3082, so the inner cylinder 3082 also moves towards cylinder 2 302 along the sliding groove on the inner side of the inner shell 3081. The other end of the inner cylinder 3082 is fixedly connected to a straight rod 3054, which drives rotating cylinder 3051 to move synchronously towards cylinder 2 302. During the directional movement, the irregularly shaped groove 3053 on the rotating drum 3051 is restricted by its top screw 3041. The screw 3041 is engaged inside the irregularly shaped groove 3053 and fixedly connected to the cylinder 4 304. Therefore, while the rotating drum 3051 moves towards the cylinder 2 302, it will also rotate around the double cylindrical rod 3055 at an angle greater than 20 degrees and less than 40 degrees under the restriction of the screw 3041, engaging and pressing the clamping block 3052 onto the cutter head 4, thus completing the clamping by rotation. The function of the cutting tool is to disassemble it by moving towards cylinder 302. After clamping and disassembly, it is then flipped under the action of locking block 602 and fixing block 603, transporting the disassembled cutting tool to the tool magazine position. At this time, cylinder 307 pulls rotating rod 306 to move away from cylinder 302. Rotating rod 306 drives the externally fixed inner cylinder 3082, so the inner cylinder 3082 also moves away from cylinder 302 along the sliding groove on the inner side of the inner shell 3081. The other end of 3082 is fixedly connected to a straight rod 3054. The straight rod 3054 drives the rotating drum 3051 to move synchronously away from the second cylinder 302. During the movement, the irregularly shaped sliding groove 3053 set on the rotating drum 3051 is restricted by its top screw 3041. Under the restriction of the screw 3041, it rotates around the double round rod 3055 at an angle greater than 20 degrees and less than 40 degrees, which relatively unfolds the clamping block 3052 and relaxes the pressure on the tool head 4, preparing for the replacement of a new tool.

[0037] The working principle of this invention is as follows: When a tool change is required, cylinder 2 307 drives rotating rod 2 306 to move left and right on the horizontal plane. First, cylinder 2 307 pulls rotating rod 2 306 towards the side closer to cylinder 2 302. Rotating rod 2 306 drives the externally fixed inner cylinder 3082, so the inner cylinder 3082 also moves towards cylinder 2 302 along the sliding groove on the inner side of inner shell 3081. The other end of the inner cylinder 3082 is fixedly connected to a straight rod 3054. The straight rod 3054 drives rotating cylinder 3051 to move synchronously towards cylinder 2 302. During the movement, the irregularly shaped sliding groove 3053 provided on rotating cylinder 3051 is restricted by its top screw 3041. Screw 3041 is engaged with the irregularly shaped sliding groove. The groove 3053 is both inside and fixedly connected to the cylinder 304. Therefore, while the rotating cylinder 3051 moves toward the cylinder 302, it will also rotate around the double cylindrical rod 3055 at an angle greater than 20 degrees and less than 40 degrees under the constraint of the screw 3041, clamping the clamping block 3052 and pressing it onto the tool head 4. The rotation completes the function of clamping the tool, and the movement toward the cylinder 302 completes the operation of disassembling the tool. At this time, the cylinder 503 can drive the slide rod 504 to reciprocate along the large sliding groove 501. The other side of the slide rod 504 is fixedly connected to the connecting plate 505, so the connecting plate 505 and the slide rod 504 will move synchronously. The connecting plate 505 will then drive the slider 506 to move in the same direction. The slide block 506 moves linearly on the large slide groove 501. Through the meshing of the gears, the linear motion of the slide block 506 causes the gear 507 to rotate. The gear 507 is fixedly connected to the rotating rod 508, so it also rotates together. The rotating rod 508 then drives the fixed sleeve 604, locking block 602, and fixed block 603 to rotate together. By adjusting the displacement generated by the slide block 506, the rotation angle of the locking block 602 and fixed block 603 can be controlled, and a maximum rotation of 180 degrees can be completed. After clamping and disassembly, the locking block 602 and fixed block 603 drive the flipping action to transport the disassembled tool to the tool magazine position. At this time, the cylinder 307 pulls the rotating rod 306 away from the cylinder 302. The rotating rod 306 drives the externally fixed inner cylinder 3082, so the inner cylinder 3082 also moves away from the cylinder 302 along the sliding groove on the inner side of the inner shell 3081. The other end of the inner cylinder 3082 is fixedly connected to the straight rod 3054. The straight rod 3054 drives the rotating cylinder 3051 to move synchronously away from the cylinder 302. During the movement, the irregular sliding groove 3053 set on the rotating cylinder 3051 is restricted by its top screw 3041. Under the restriction of the screw 3041, it completes an angle rotation of more than 20 degrees and less than 40 degrees around the double round rod 3055, which relatively unfolds the clamping block 3052 and relaxes the clamping on the tool head 4, preparing for the replacement of a new tool.

[0038] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A tool changing device for a glass processing center, comprising a horizontal plate (2), characterized in that: The bottom of the horizontal plate (2) is circumferentially fixedly connected to the outer shell (1). The bottom of the horizontal plate (2) and the inner side of the outer shell (1) are fixedly connected to the cylinder slide mechanism (5). The bottom of the horizontal plate (2) and one side of the cylinder slide mechanism (5) are provided with a support mechanism (6). One side of the support mechanism (6) is fixedly connected to a rotating disassembly mechanism (3). The rotating disassembly mechanism (3) is provided with a cutting head (4) inside.

2. The tool changing device for a glass processing center according to claim 1, characterized in that: The cylinder slide mechanism (5) includes a large slide (501) fixedly connected to the top side of the horizontal plate (2). A base (502) is fixedly connected to the top of the horizontal plate (2) and one side of the large slide (501). A cylinder (503) is fixedly connected to the inner side of the base (502). A slide rod (504) is fixedly slidably connected to one side of the cylinder (503). A connecting plate (505) is fixedly connected to the other side of the slide rod (504). A slider (506) is provided on the other end of the connecting plate (505) near the cylinder (503) and the top of the large slide (501).

3. The tool changing device for a glass processing center according to claim 1, characterized in that: The support mechanism (6) includes a base two (601) fixedly connected to the top of the horizontal plate (2) on the side away from the large slide groove (501). The inner side of the base two (601) is rotatably connected to a rotating rod one (508). A gear (507) is provided on the side of the rotating rod one (508) near the large slide groove (501) and the top of the slider (506). A fixing sleeve (604) is fixedly connected to the inner side of the base two (601) and the outer side of the rotating rod one (508). A locking block (602) is fixedly connected to the outer side of the fixing sleeve (604). A fixing block (603) is fixedly connected to one side of the locking block (602).

4. The tool changing device for a glass processing center according to claim 1, characterized in that: The rotating disassembly mechanism (3) includes a cylinder one (301) fixedly connected to the other side of the fixed block (603), a cylinder two (302) fixedly connected to the other side of the cylinder one (301), a cylinder three (303) fixedly connected to the other side of the cylinder two (302), a cylinder four (304) fixedly connected to the other side of the cylinder three (303), and a rotating cylinder (3051) fixedly connected to the other end of the cylinder four (304).

5. A tool changing device for a glass processing center according to claim 4, characterized in that: A spring (3071) is fixedly connected to the other side of the fixed block (603) and the inside of the second cylinder (302). A cylinder (307) is slidably connected to the other side of the spring (3071) and the inside of the first cylinder (301). A rotating rod (306) is fixedly connected to the other side of the cylinder (307). An inner clamping mechanism (308) is provided on the inner side of the second cylinder (302) and the outer side of the rotating rod (306). A double-headed clamping mechanism (305) is provided on the other side of the inner clamping mechanism (308). A cutter head (4) is provided on the inner side of the double-headed clamping mechanism (305).

6. A tool changing device for a glass processing center according to claim 5, characterized in that: The inner locking mechanism (308) includes an inner shell (3081) slidably connected to the outside of the rotating rod (306). An inner cylinder (3082) is provided inside the inner shell (3081) and outside the rotating rod (306). An outer protrusion (3083) is fixedly connected to the outside of the inner cylinder (3082).

7. A tool changing device for a glass processing center according to claim 6, characterized in that: The other end of the inner cylinder (3082) is fixedly connected to a short rod (3084), and the double-headed clamping mechanism (305) includes a straight rod (3054) fixedly connected to the other end of the inner cylinder (3082) and the outside of the short rod (3084), and the two ends of the straight rod (3054) are fixedly connected to double round rods (3055).

8. A tool changing device for a glass processing center according to claim 7, characterized in that: The double round rod (3055) is rotatably connected to a rotating cylinder (3051). A shaped groove (3053) is provided on the outer surface of the rotating cylinder (3051) near the screw (3041). A clamping block (3052) is fixedly connected to one end of the rotating cylinder (3051) away from the double round rod (3055). A cutter head (4) is clamped on the inner side of the clamping block (3052).

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