Disc cutter magazine sealing protection mechanism

Abstract

The utility model belongs to numerical control machine tool technical field, concretely relates to a disc tool magazine seal protection mechanism, including the tool disc cover, the tool disc cover includes the top plate and a plurality of baffle, a plurality of baffle surrounds the top plate a circle and is arranged in proper order and is linked two by two setting, be equipped with the tool shank mouth on the baffle, the baffle outside is equipped with the protection mechanism, the protection mechanism includes the movable cover that is equipped in the tool shank mouth outside, movable cover one side with baffle one side rotatable connection, movable cover can rotate relative to the tool shank mouth, the protection mechanism still includes the stop device to limit movable cover relative baffle's rotation range, baffle is away from the top plate one end and is equipped with the back cover with baffle adjacent setting. Through the above-mentioned component's setting, effectively prevent the chip and cooling liquid and invade the tool magazine inside through the tool shank mouth, promote the tool magazine operation reliability, guarantee the machining accuracy.

Description

Technical Field

[0001] This utility model belongs to the field of CNC machine tool technology, specifically relating to a sealing and protection mechanism for a disc tool magazine. Background Technology

[0002] In the field of CNC machine tool machining, the tool magazine, as the core component for realizing automatic tool changing, directly affects machining efficiency and workpiece accuracy due to its operational stability. Existing CNC machine tool tool magazines are usually equipped with motor covers and tool turret covers to provide basic storage and protection for the tool holders, preventing direct impact or contamination from the external environment.

[0003] However, in actual machining center operations, the cutting action between the tool and the workpiece generates a large amount of chips, while the coolant sprayed by the cooling system splashes during the machining process. Because the tool holder opening on the tool holder tumbler remains open to facilitate tool changes, existing protective mechanisms relying solely on the motor housing and tool tumbler housing have significant drawbacks: chips, coolant, and other impurities can easily penetrate directly into the tool magazine through the tool holder opening. These impurities adhere to the tool holder surface and internal components of the tool magazine. When the tool holder and spindle are fitted together, these impurities cause positioning accuracy deviations, disrupting the original fit clearance and ultimately reducing the connection accuracy between the tool holder and spindle.

[0004] This loss of precision directly impacts subsequent processing stages, causing dimensional and geometric tolerances to exceed acceptable limits, severely affecting the stability of machining quality. Furthermore, long-term accumulation of impurities can shorten equipment lifespan and increase maintenance costs. Utility Model Content

[0005] The purpose of this utility model is to provide a sealing and protection mechanism for a disc tool magazine, which aims to solve the technical problem in the prior art where chips and coolant can enter the inside of the tool magazine through the tool holder opening, resulting in insufficient reliability and machining accuracy of the tool magazine operation.

[0006] To achieve the above objectives, this utility model provides a sealing and protective mechanism for a disc tool magazine, comprising a tool magazine cover, the tool magazine cover including a top plate and multiple baffles, the multiple baffles being arranged sequentially around the top plate and connected in pairs, the baffles having tool handle openings; a protective mechanism is provided on the outside of the baffles, the protective mechanism including a movable cover plate disposed on the outside of the tool handle openings, one side of the movable cover plate being rotatably connected to one side of the baffles, the movable cover plate being rotatable relative to the tool handle openings; the protective mechanism also includes a limiting device to restrict the rotation range of the movable cover plate relative to the baffles; a rear cover is provided adjacent to the baffle plate at the end of the baffles away from the top plate.

[0007] Preferably, the baffle is a flat plate.

[0008] Preferably, the limiting device includes a limiting hole, a fixed rod, a limiting rod, and a torsion spring. The limiting hole is located on the movable cover plate, the fixed rod and the limiting rod are located on the baffle plate, the limiting rod is located below the fixed rod, the torsion spring is sleeved on the fixed rod, one end of the torsion spring is connected to the limiting rod, and the other end is connected to the movable cover plate through the limiting hole.

[0009] Preferably, one side of the movable cover plate is sleeved on the fixed rod, and the torsion spring is located on the outside of the movable cover plate.

[0010] Preferably, when the movable cover plate is in a closed state relative to the knife handle opening, the limiting rod abuts against the movable cover plate to limit the range of motion of the movable cover plate.

[0011] Preferably, the rear cover has a movable groove with an opening facing the baffle, and the end of the baffle away from the top plate is located in the movable groove.

[0012] Preferably, the rear cover is provided with a blade replacement slot.

[0013] Preferably, the limiting device further includes a limiting cover plate, which is fixed to the outside of the baffle and located outside the movable cover plate.

[0014] Preferably, the top plate is provided with a drive protection cover.

[0015] The above-mentioned technical solutions of one or more technical solutions in the disc tool magazine sealing and protection mechanism provided by this utility model embodiment have at least one of the following technical effects:

[0016] This utility model discloses a sealing and protective mechanism for a disc-shaped tool magazine. A movable cover plate, rotatable relative to the tool holder opening, is installed on the outside of the baffle. With the cooperation of a torsion spring, a fixing rod, and a limiting rod, the range of motion of the movable cover plate is limited, keeping the tool holder opening closed when tool changing is not required. This prevents chips and coolant from entering the tool magazine through the tool holder opening, improving the reliability of the tool magazine operation. Furthermore, the protective mechanism offers greater stability in its position and structure, and is easy to assemble, maintain, and replace, while maintaining low cost. The elastic preload of the torsion spring and the mechanical limiting of the limiting rod provide stable support for the movable cover plate in both closed and open states, preventing the cover plate from shaking or loosening due to machine tool vibration, ensuring the long-term reliability of the protective mechanism. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, 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.

[0018] Figure 1A perspective view of a disc-shaped tool magazine sealing and protection mechanism provided for an embodiment of this utility model.

[0019] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0020] Figure 3 A perspective view of the rear cover in a disc tool magazine sealing and protection mechanism provided for an embodiment of this utility model.

[0021] Figure 4 This is a front view of the rear cover in a disc tool magazine sealing and protection mechanism provided for an embodiment of the present utility model.

[0022] The following are the labeling elements in the figure:

[0023] 10—Cutter head cover 11—Top plate 12—Baffle 13—Cutter handle opening 14—Cutter holder 15—Cutter handle

[0024] 20—Protective Mechanism 21—Modible Cover Plate 22—Limiting Hole 23—Fixing Rod 24—Limiting Rod

[0025] 25—Torsion Spring 26—Limiting Cover Plate 30—Rear Cover 31—Sword Changer 32—First End Face

[0026] 33—Second end face; 34—Modular groove; 40—Drive protection cover. Detailed Implementation

[0027] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0028] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0031] In one embodiment of this utility model, such as Figures 1-4 As shown, a disc tool magazine sealing and protection mechanism is provided, including a tool magazine cover 10, a protective mechanism 20, a rear cover 30, and a drive protection cover 40. The tool magazine cover 10 is a cylindrical structure with an opening at one end. A tool magazine is provided inside the tool magazine cover 10. A protective mechanism 20 is provided on the side of the tool magazine cover 10 to protect the tool holder opening 13 on the tool magazine cover 10, so that the corresponding tool holder opening is in a closed state when the tool magazine does not need to be changed. The rear cover 30 is provided at the end of the tool magazine cover 10 with the opening. The rear cover 30 cooperates with the tool magazine cover 10 to form a relatively sealed space for the tool magazine. The end of the tool magazine cover 10 away from the rear cover 30 is provided with a drive protection cover 40 to protect the drive device inside the tool magazine.

[0032] The cutter head cover 10 includes a top plate 11, a baffle 12, and a tool holder opening 13. The top plate 11 is the main structure of the cutter head cover 10. The baffle 12 is a trapezoidal flat plate, and there are multiple baffles 12. The baffles 12 are arranged around the top plate 11, and one edge of the baffle 12 is fixedly connected to the edge of the top plate 11. The sides of multiple adjacent baffles 12 are connected to each other to form a closed annular side protection structure, making the cutter head cover 10 have a cylindrical structure as a whole. The tool holder opening 13 is located at the end of the baffle 12 away from the top plate 11, and the tool holder opening 13 is a groove-shaped structure with an opening facing away from the top plate 11.

[0033] The top plate 11 is provided with a plurality of knife holders 14 on the side facing the baffle 12. The knife holders 14 are claw structures, and the knife holders 14 hold the knife handles 15. When the knife holders 14 hold the knife handles 15, the knife handles 15 are in the knife handle opening 13.

[0034] The protective mechanism 20 includes a movable cover plate 21, a limiting hole 22, a fixing rod 23, a limiting rod 24, a torsion spring 25, and a limiting cover plate 26. The number of movable cover plates 21 corresponds to the number of knife handle openings 13, and the shape of the movable cover plates 21 is adapted to the shape of the knife handle openings 13 to achieve coverage of the knife handle openings 13. A connecting ring is provided on one side of the movable cover plate 21, so that the movable cover plate 21 can cover the knife handle openings 13 to the maximum extent, while the movable cover plate 21 can rotate relative to the baffle 12.

[0035] like Figure 2 As shown, the limiting hole 22 is provided on the movable cover plate 21, the fixing rod 23 and the limiting rod 24 are provided on the baffle 12, and the limiting rod 24 is located below the fixing rod 23. The torsion spring 25 is sleeved on the fixing rod 23. One end of the torsion spring 25 is connected to the limiting rod 24, and the other end is connected to the movable cover plate 21 through the limiting hole 22.

[0036] The movable cover plate 21 is connected by a ring sleeved on the fixed rod 23, and the torsion spring 25 is located on the outside of the movable cover plate 21. When the tool holder 15 is not provided in the tool holder opening 13, the movable cover plate 21 is prevented from shaking or loosening due to machine tool vibration under the limiting action of the torsion spring 25 and the limiting rod 24, ensuring the long-term reliability of the protective mechanism. When the tool holder 15 is provided in the tool holder opening 13, the tool holder 15 pushes the movable cover plate 21 to rotate in the direction of the top plate 11, and the torsion spring 25 is torsionally deformed. After the tool holder 15 is clamped by the tool holder 14, the movable cover plate 21 remains unchanged in position under the limiting action of the torsion spring 25 and the tool holder 15.

[0037] The protective mechanism 20 also includes a limiting cover plate 26, which is fixed to the outside of the baffle 12. The limiting cover plate 26 has a support corner, and the limiting cover plate 26 is fixedly connected to the baffle 12 through the support corner, so that the limiting cover plate 26 is located on the side of the movable cover plate 21 away from the baffle 12. The limiting cover plate 26 is set to limit the range of motion of the movable cover plate 21. At the same time, when the handle 15 pushes the movable cover plate 21 to rotate, the limiting cover plate 26 restricts the maximum range of motion of the movable cover plate 21 to avoid overload damage to the torsion spring 25. The limiting cover plate 26 also prevents the movable cover plate 21 from having an excessively large angle of motion, which would cause mutual interference to the movable cover plates 21 in adjacent protective mechanisms 20.

[0038] like Figure 3 , 4As shown, a tool changing slot 31 is formed on the rear cover 30, providing space for the installation of the tool holder 15 and the tool, as well as for the removal of the tool from the spindle. The rear cover 30 also includes a first end face 32 and a second end face 33. The end of the baffle 12 away from the top plate 11 is adjacent to the second end face 33. The first end face 32 and the second end face 33 form a movable groove 34 on the side of the rear cover 30 near the tool disc cover 10. The end of the baffle 12 away from the top plate 11 and the tool holder 15 are located in the movable groove 34. When the drive device drives the tool disc to rotate, the tool disc drives the tool holder 14 to rotate the tool holder 15 in the movable groove 34.

[0039] The working principle of this utility model is as follows: A sealing and protective mechanism for a disc-shaped tool magazine, when the tool holder 15 is not installed in the tool holder 14, under the elastic preload of the torsion spring 25 and the action of the limiting rod 24, the movable cover plate 21 covers the tool holder opening 13, and the bottom surface of the movable cover plate 21 does not contact the rear cover 30 to avoid friction and wear. In this state, the movable cover plate 21, the baffle 12 and the rear cover 30 form a closed space, which can effectively prevent impurities such as chips and coolant from entering the tool magazine through the tool holder opening 13.

[0040] When a tool holder 15 is installed in a tool holder 14 and extends out of the tool holder opening 13, the tool holder 15 pushes the movable cover plate 21 to rotate in the direction of the top plate 11. The torsion spring 25 is torsionally deformed. After the tool holder 15 is clamped by the tool holder 14, the movable cover plate 21 remains in a fixed position under the restraint of the torsion spring 25 and the tool holder 15. At this time, the movable cover plate 21 remains in the open state relative to the baffle 12 under the elastic force of the torsion spring 25 and the restraint of the tool holder 15. The limiting cover plate 26 can limit the maximum rotation angle of the movable cover plate 21 to prevent it from overturning. When the spindle removes the tool holder 15 installed on the tool holder 14, the movable cover plate 21 rotates in the opposite direction under the restoring force of the torsion spring 25 until it contacts the limiting rod 24 again, and the movable cover plate 21 returns to the state of covering the tool holder opening 13.

[0041] Through the above-mentioned structure and action coordination, the dynamic sealing design of the movable cover plate 21 and the movement mode of the movable cover plate 21 relative to the baffle 12 solve the problem of impurity intrusion caused by the long-term openness of the tool holder of the traditional tool magazine, improve the machining stability, and at the same time, the stability of the movable cover plate 21 is stronger; the dual limiting of the torsion spring 25 and the limiting rod 33 ensures that the movable cover plate 21 does not loosen in the vibration environment, and together with the limiting cover plate 26, it extends the stability and life of the limiting device 30; the movable cover plate 21, torsion spring 25 and other components are located on the outside of the tool magazine cover 10, which is convenient for disassembly and assembly, and reduces the maintenance and replacement costs; the structural design of the rear cover 30 and its cooperation with the tool magazine cover 10 greatly improve the reliability of the overall protection and reduce the risk of failure caused by the accumulation of impurities inside the tool magazine.

[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sealing and protection mechanism for a disc-shaped tool magazine, characterized in that: The device includes a cutter head cover (10), which includes a top plate (11) and multiple baffles (12). The multiple baffles (12) are arranged sequentially around the top plate (11) and connected in pairs. Each baffle (12) has a cutter handle opening (13). A protective mechanism (20) is provided on the outside of the baffle (12). The protective mechanism (20) includes a movable cover (21) located outside the cutter handle opening (13). One side of the movable cover (21) is rotatably connected to one side of the baffle (12). The movable cover (21) can rotate relative to the cutter handle opening (13). The protective mechanism (20) also includes a limiting device to limit the rotation range of the movable cover (21) relative to the baffle (12). A rear cover (30) is provided at the end of the baffle (12) away from the top plate (11) and adjacent to the baffle (12).

2. The disc-shaped tool magazine sealing and protection mechanism according to claim 1, characterized in that: The baffle (12) is a flat plate.

3. The disc tool magazine sealing and protection mechanism according to claim 1, characterized in that: The limiting device includes a limiting hole (22), a fixing rod (23), a limiting rod (24), and a torsion spring (25). The limiting hole (22) is located on the movable cover plate (21). The fixing rod (23) and the limiting rod (24) are located on the baffle (12). The limiting rod (24) is located below the fixing rod (23). The torsion spring (25) is sleeved on the fixing rod (23). One end of the torsion spring (25) is connected to the limiting rod (24), and the other end is connected to the movable cover plate (21) through the limiting hole (22).

4. The disc tool magazine sealing and protection mechanism according to claim 3, characterized in that: The movable cover plate (21) is sleeved on one side of the fixed rod (23), and the torsion spring (25) is located on the outside of the movable cover plate (21).

5. The disc tool magazine sealing and protection mechanism according to claim 3, characterized in that: When the movable cover plate (21) is in a closed state relative to the tool holder opening (13), the limiting rod (24) abuts against the movable cover plate (21) to limit the range of motion of the movable cover plate (21).

6. The disc tool magazine sealing and protection mechanism according to claim 1, characterized in that: The rear cover (30) is provided with an movable groove (34) with an opening facing the baffle (12), and the end of the baffle (12) away from the top plate (11) is located in the movable groove (34).

7. The disc tool magazine sealing and protection mechanism according to claim 1, characterized in that: The rear cover (30) is provided with a knife-changing slot (31).

8. The disc tool magazine sealing and protection mechanism according to claim 1, characterized in that: The limiting device also includes a limiting cover plate (26), which is fixed to the outside of the baffle (12) and located outside the movable cover plate (21).

9. The disc tool magazine sealing and protection mechanism according to claim 1, characterized in that: The top plate (11) is provided with a drive protection cover (40).

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