Rapid tool changing mechanism of CNC machining center

Abstract

The utility model belongs to the technical field of CNC machining centers, and particularly relates to a CNC machining center quick tool changing mechanism which comprises a CNC machining center body, and a machining body is installed in the middle of the CNC machining center body. A tool magazine is arranged on the side wall of the CNC machining center body. The middle of the machining body is rotationally connected with a rotating shaft. The bottom of the rotating shaft is fixedly connected with a fixed plate; the bottom of the fixed plate is rotationally connected with a circular plate; a plurality of fixing rods are slidably connected to the bottom of the circular plate; the end part of the fixed rod is fixedly connected with an arc-shaped plate; a plurality of round rods are fixedly connected to the end part of the fixed plate; the bottom of the round rod is fixedly connected with a bottom plate; the bottom plate is positioned below the circular plate; by additionally arranging the gears and the clamping grooves, the multiple fixing rods and the arc-shaped plates can be moved at a time through rotation of the gears when the cutter is replaced, fixing of the cutter is accelerated, meanwhile, the fixing rods and the arc-shaped plates are moved to center and position the cutter when the cutter is clamped, and therefore convenience is improved when the cutter is replaced.

Description

Technical Field

[0001] This utility model relates to the field of CNC machining center technology, specifically a quick tool change mechanism for CNC machining centers. Background Technology

[0002] CNC machining centers are automated machine tools that integrate multiple processes such as milling, drilling, and tapping. They control the movement of cutting tools according to preset trajectories through computer programs, enabling high-precision and high-efficiency machining of complex curved surfaces on workpieces such as aluminum alloys and steel. They are widely used in the production of precision parts in aerospace, automobile manufacturing, and other fields.

[0003] CNC machining center cutting tools are tools mounted on the machine tool spindle for automated cutting. They can be classified into types such as milling cutters, drills, and boring tools according to their uses. They have high precision and high wear resistance and can perform multi-process machining such as milling, drilling, and tapping of complex workpieces through program control. They are the core components for achieving precision manufacturing in CNC machining.

[0004] When a machining center operates for an extended period of time, the cutting tools will wear out and need to be replaced. However, the replacement process is quite cumbersome because it requires rotating and disassembling multiple bolts.

[0005] Therefore, a rapid tool change mechanism for CNC machining centers is proposed to address the above problems. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: A quick tool change mechanism for a CNC machining center, comprising a CNC machining center body, a machining main body mounted in the middle of the CNC machining center body; a tool magazine provided on the side wall of the CNC machining center body; a rotating shaft rotatably connected to the middle of the machining main body; a fixed plate fixedly connected to the bottom of the rotating shaft; a circular plate rotatably connected to the bottom of the fixed plate; multiple fixed rods slidably connected to the bottom of the circular plate; an arc-shaped plate fixedly connected to the end of each fixed rod; and multiple circular rods fixedly connected to the end of the fixed plate. A base plate is fixedly attached to the bottom; the base plate is located below the circular plate; a clamping plate is fixedly attached to the surface of the base plate; a gear is rotatably connected to the center of the clamping plate; multiple slots are opened on the side wall of the circular plate; the slots and gears are correspondingly arranged; a sliding rod is slidably fitted on the clamping plate; the sliding rod and gear are correspondingly arranged; by adding gears and slots, multiple fixing rods and arc plates can be moved once by the rotation of the gears when changing tools, so as to speed up the fixing of tools. At the same time, moving the fixing rods and arc plates can center the tool when clamping it, thereby increasing the convenience of tool changing.

[0008] Preferably, an iron block is fixed to the bottom of the insertion rod; a circular groove is formed in the middle of the iron block; a magnet is fixed inside the CNC machining center body; by adding the iron block, the insertion rod can be attracted to the magnet when it is inserted into the card plate, and the circular groove can contain the magnet inside the iron block, so that the iron block and the magnet fit together better when in contact.

[0009] Preferably, a counterweight is fixed to the top of the insertion rod; the counterweight and the insertion rod are correspondingly arranged; by adding the counterweight, the descent speed of the insertion rod can be accelerated when it is inserted, and at the same time, after the insertion rod is inserted, the counterweight will increase the weight of the top of the insertion rod so that it fits more closely inside the card plate.

[0010] Preferably, a lever is fixedly connected to the top of the gear; multiple levers are provided on the gear; by adding levers, the rotation of the gear can be accelerated when rotating the gear, and at the same time, the flat area of ​​the lever makes it more convenient to apply thrust when in contact, thereby speeding up the operation of the gear and enabling it to operate the circular plate quickly.

[0011] Preferably, an anti-slip pad is fixed to the inner wall of the arc-shaped plate; the anti-slip pad and the arc-shaped plate are correspondingly arranged; by adding the anti-slip pad, the frictional resistance of the tool can be increased when the arc-shaped plate fixes the tool, thereby increasing the stability of the arc-shaped plate in fixing the tool and reducing slippage.

[0012] Preferably, the card plate has a square groove; the side wall of the insertion rod is fixed with a block; the square groove and the block are correspondingly arranged and slidably engaged; by adding the square groove and the block, the insertion rod can be laterally supported by the engagement of the square groove and the block when in use, making it more stable.

[0013] The advantages of this utility model are:

[0014] 1. The CNC machining center quick tool change mechanism described in this utility model, by adding gears and slots, can move multiple fixed rods and arc plates at once by rotating the gears when changing tools, thereby speeding up the fixing of the tool. At the same time, moving the fixed rods and arc plates can center the tool when clamping it, thereby increasing the convenience of tool changing.

[0015] 2. The CNC machining center quick tool change mechanism described in this utility model adds an iron block that can be attracted to a magnet when the insert rod is inserted into the chuck. At the same time, the circular groove can contain the magnet inside the iron block, thereby making the iron block and the magnet fit together more closely when in use. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the main body of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the rotating shaft in this utility model;

[0019] Figure 3 This is a schematic diagram of the arc-shaped plate in this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the lever plate in this utility model;

[0021] Figure 5 This is a schematic diagram of the card plate in this utility model.

[0022] In the diagram: 1. CNC machining center body; 11. Machining body; 12. Tool magazine; 13. Rotary axis; 14. Fixing plate; 15. Round plate; 16. Fixing rod; 17. Arc plate; 18. Round rod; 19. Base plate; 101. Clamping plate; 102. Gear; 103. Insert rod; 104. Clamping slot; 2. Iron block; 21. Round groove; 3. Counterweight block; 4. Pulley; 5. Anti-slip pad; 6. Square groove; 61. Square block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0024] Specific implementation examples are given below.

[0025] like Figures 1 to 5As shown in the embodiment of this utility model, a quick tool change mechanism for a CNC machining center includes a CNC machining center body 1, a machining body 11 mounted in the middle of the CNC machining center body 1; a tool magazine 12 is provided on the side wall of the CNC machining center body 1; a rotating shaft 13 is rotatably connected to the middle of the machining body 11; a fixing plate 14 is fixedly connected to the bottom of the rotating shaft 13; a circular plate 15 is rotatably connected to the bottom of the fixing plate 14; a plurality of fixing rods 16 are slidably connected to the bottom of the circular plate 15; an arc-shaped plate 17 is fixedly connected to the end of the fixing rod 16; and the end of the fixing plate 14... Multiple round rods 18 are fixedly connected to the base; a base plate 19 is fixedly connected to the bottom of each round rod 18; the base plate 19 is located below the round plate 15; a clamping plate 101 is fixedly connected to the surface of the base plate 19; a gear 102 is rotatably connected to the middle of the clamping plate 101; multiple slots 104 are formed on the side wall of the round plate 15; the slots 104 and gears 102 are correspondingly arranged; an insert rod 103 is slidably fitted on the clamping plate 101; the insert rod 103 and gear 102 are correspondingly arranged; during operation, the tool is first inserted into the middle of the base plate 19 and then passes through the round plate 15 in sequence, stopping it in multiple arcs. Between plates 17, when gear 102 is rotated, it engages with slot 104, causing the circular plate 15 to rotate. During rotation, the fixing rod 16 slides along the inner wall, gradually moving closer to the central tool. The arc-shaped plate 17 then comes into contact with the tool, gradually clamping it. Once clamped, the insert rod 103 can be inserted into the clamping plate 101, fixing gear 102 and preventing it from rotating. The insert rod 103 fixes gear 102, allowing its teeth to engage with slot 104. When the circular plate 15 stops rotating, and the tool needs to be replaced, the insert rod 103 is taken out and the gear 102 is rotated to rotate the circular plate 15 to quickly remove the tool. Then, the required tool can be taken out from the tool magazine 12 for installation. By adding the gear 102 and the slot 104, multiple fixing rods 16 and arc plate 17 can be moved at once by the rotation of the gear 102 when the tool is replaced, so as to speed up the fixing of the tool. At the same time, moving the fixing rods 16 and arc plate 17 can center the tool when clamping it, thereby increasing the convenience of tool replacement.

[0026] like Figures 2 to 5As shown, an iron block 2 is fixedly attached to the bottom of the insertion rod 103; a circular groove 21 is provided in the middle of the iron block 2; a magnet is fixedly attached inside the CNC machining center body 1; during operation, when the insertion rod 103 is inserted into the card plate 101, the circular groove 21 will fit over the magnet, increasing the fixing path when it enters the card plate 101. When the circular groove 21 fits the magnet, it will be attracted by the magnetic force generated by the magnet; by adding the iron block 2, the insertion rod 103 can be attracted to the magnet when it is inserted into the card plate 101, and at the same time, the circular groove 21 can contain the magnet inside the iron block 2, so that the iron block 2 and the magnet fit together more closely when in contact.

[0027] like Figures 4 to 5 As shown, a counterweight 3 is fixedly connected to the top of the insertion rod 103; the counterweight 3 and the insertion rod 103 are correspondingly arranged; during operation, after the insertion rod 103 is inserted and released, the counterweight 3 increases the weight of the top of the insertion rod 103, so that it applies a falling force to the insertion rod 103 when it falls, thereby inserting it into the card plate 101 more quickly, thus accelerating the fixed engagement of the gear 102; by adding the counterweight 3, the descent speed of the insertion rod 103 can be accelerated when it is inserted, and at the same time, after the insertion rod 103 is inserted, the counterweight 3 increases the weight of the top of the insertion rod 103, making it fit more closely inside the card plate 101.

[0028] like Figure 4 As shown, a lever plate 4 is fixedly connected to the top of the gear 102; multiple lever plates 4 are arranged on the gear 102; during operation, the lever plate 4 can be pushed when the gear 102 is rotated, and when the lever plate 4 is pushed, it will drive the gear 102 to rotate, thereby quickly rotating the gear 102; by adding lever plates 4, the rotation of the gear 102 can be accelerated, and at the same time, the flat area of ​​the lever plate 4 makes it more convenient to apply pushing force when in contact, thereby speeding up the operation of the gear 102 and enabling it to quickly operate the circular plate 15.

[0029] like Figure 3 As shown, an anti-slip pad 5 is fixed to the inner wall of the arc-shaped plate 17; the anti-slip pad 5 and the arc-shaped plate 17 are correspondingly arranged; during operation, when the arc-shaped plate 17 clamps and fixes the tool, the anti-slip pad 5 will first contact the tool. After contact, the anti-slip pad 5 will deform under the pressure, thereby increasing the frictional resistance with the tool; by adding the anti-slip pad 5, the frictional resistance of the tool can be increased when the arc-shaped plate 17 fixes the tool, thereby increasing the stability of the arc-shaped plate 17 in fixing the tool and reducing slippage.

[0030] like Figures 4 to 5As shown, the card plate 101 has a square groove 6; the insert rod 103 has a block 61 fixed to its side wall; the square groove 6 and the block 61 are correspondingly arranged and slidably engaged; during operation, when the insert rod 103 is inserted into the card plate 101, the block 61 and the square groove 6 can be aligned, and then the block 61 can be inserted into the square groove 6, thereby applying lateral fixation to the insert rod 103 through the square groove 6 and the block 61 during insertion; by adding the square groove 6 and the block 61, the insert rod 103 can be laterally supported by the engagement of the square groove 6 and the block 61 when in use, making it more stable.

[0031] Working principle: The cutting tool is first inserted into the center of the bottom plate 19 and then passes through the circular plate 15, stopping it between multiple arc-shaped plates 17. Then, the gear 102 is rotated, engaging with the slot 104. This engagement rotates the circular plate 15, causing it to slide along the inner wall and gradually move towards the cutting tool in the center. The arc-shaped plates 17 then come into contact with the cutting tool, gradually clamping it. Once clamped, the insertion rod 103 can be inserted... The insert rod 103 is inserted into the clamping plate 101, thereby fixing the gear 102 and preventing it from rotating. The insert rod 103 then fixes the gear 102, causing it to engage with the slot 104 through the teeth of the gear 102, stopping the rotation of the circular plate 15. When the tool needs to be replaced, the insert rod 103 is removed, and the gear 102 is rotated to rotate the circular plate 15, allowing for quick tool removal. The required tool can then be retrieved from the tool magazine 12 for installation. When the insert rod 103 is inserted into the clamping plate 101, the slot... 21 will be fitted onto the magnet, increasing the fixing path when it enters the card plate 101. After the circular groove 21 fits the magnet, it will be attracted by the magnetic force generated by the magnet. After the insertion rod 103 is inserted and released, the counterweight 3 will increase the weight of the top of the insertion rod 103, so that it will exert a falling force on the insertion rod 103 when it falls, thus making it faster when it is inserted into the card plate 101, thereby speeding up the fixing and engagement of the gear 102. When the gear 102 rotates, it can push the lever 4. When the lever 4 is pushed, This will cause the gear 102 to rotate, thus rapidly rotating the gear 102; when the arc plate 17 clamps and fixes the tool, the anti-slip pad 5 will first contact the tool, and after contact, the anti-slip pad 5 will deform under the pressure, thereby increasing the frictional resistance with the tool; when inserting the rod 103 into the card plate 101, the block 61 and the square groove 6 can be aligned, and then the block 61 can be inserted into the square groove 6, thereby applying lateral fixation to the rod 103 through the square groove 6 and the block 61 during insertion.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A rapid tool change mechanism for a CNC machining center, characterized in that: The system includes a CNC machining center body (1), a machining body (11) mounted in the middle of the CNC machining center body (1); a tool magazine (12) is provided on the side wall of the CNC machining center body (1); a rotating shaft (13) is rotatably connected to the middle of the machining body (11); a fixing plate (14) is fixedly connected to the bottom of the rotating shaft (13); a circular plate (15) is rotatably connected to the bottom of the fixing plate (14); a plurality of fixing rods (16) are slidably connected to the bottom of the circular plate (15); an arc-shaped plate (17) is fixedly connected to the end of the fixing rod (16); the fixing plate (14) is rotatably connected to the bottom of the circular plate (15 ... tool magazine (12) is provided on the side wall of the CNC machining center body (11); a rotating shaft (13) is rotatably connected to the middle of the machining body (11); a machining body (14) is fixedly connected to the bottom of the rotating shaft (13); a machining body (14) is rotatably connected to the bottom of the fixing plate (14); a machining body (15) is rotatably connected to the bottom of the circular plate (15); a machining body (16) is rotatably connected to the bottom of the circular plate (15); a machining body (16) is rotatably connected to the bottom of the circular plate (15); a machining body (16) is rotatably connected to the bottom of the circular plate (15); a machining body (16) is rotatably connected to the bottom of the circular plate (15); a machining body (16) is rotatably connected to the bottom of the circular 4) Multiple round rods (18) are fixedly connected to the end; a base plate (19) is fixedly connected to the bottom of the round rods (18); the base plate (19) is located below the round plate (15); a clamping plate (101) is fixedly connected to the surface of the base plate (19); a gear (102) is rotatably connected to the middle of the clamping plate (101); multiple slots (104) are opened on the side wall of the round plate (15); the slots (104) and the gears (102) are correspondingly arranged; a plug rod (103) is slidably fitted on the clamping plate (101); the plug rod (103) and the gear (102) are correspondingly arranged.

2. The CNC machining center quick tool change mechanism according to claim 1, characterized in that: The bottom of the insertion rod (103) is fixed with an iron block (2); a circular groove (21) is opened in the middle of the iron block (2); a magnet is fixed inside the body (1) of the CNC machining center.

3. The CNC machining center quick tool change mechanism according to claim 2, characterized in that: A counterweight (3) is fixedly connected to the top of the insertion rod (103); the counterweight (3) and the insertion rod (103) are configured accordingly.

4. The CNC machining center quick tool change mechanism according to claim 3, characterized in that: A lever plate (4) is fixedly connected to the top of the gear (102); multiple lever plates (4) are provided on the gear (102).

5. A quick tool change mechanism for a CNC machining center according to claim 4, characterized in that: The inner wall of the arc-shaped plate (17) is fixed with an anti-slip pad (5); the anti-slip pad (5) and the arc-shaped plate (17) are arranged correspondingly.

6. A quick tool change mechanism for a CNC machining center according to claim 5, characterized in that: The card plate (101) has a square groove (6); the side wall of the insertion rod (103) is fixed with a block (61); the square groove (6) and the block (61) are correspondingly arranged and slidably engaged.

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