Mechanical automatic tool magazine protection device

Abstract

This application relates to the field of CNC engraving and milling machine technology, specifically a mechanical automatic tool magazine protective device, including a protective box. A mounting box is fixedly installed at the right end of the protective box. A hydraulic rod is fixedly installed inside the mounting box, and a connecting rod is fixedly installed at the rear end of the hydraulic rod. A toothed plate is fixedly installed at the lower end of the connecting rod. Moving slots are provided at both the front and rear ends inside the mounting box. A rotating shaft is slidably connected inside the moving slots. A connecting plate is fixedly installed at the left end of the rotating shaft, and a protective plate is fixedly installed at the rear end of the connecting plate. A gear is fixedly installed on the rotating shaft, and the gear contacts and connects with the toothed plate. The hydraulic rod drives the toothed plate to move back and forth. When the toothed plate moves backward, it contacts the gear, pushing the gear backward and simultaneously moving the connecting plate. The connecting plate then causes the protective plate to separate from the protective box. This solves the problem of needing to leave clearance space when sealing or opening the protective box, which could lead to chips entering the protective box.

Description

Technical Field

[0001] This utility model relates to the field of CNC engraving and milling machine technology, specifically a mechanical automatic tool magazine protection device. Background Technology

[0002] A carving and milling machine is a type of CNC machine tool, corresponding to a traditional carving machine. It is generally believed that a carving and milling machine is a CNC milling machine that uses small tools, high power and high speed spindle motors. However, during the use of a carving and milling machine, a tool magazine is required for automatic tool changing, and therefore a protective device is needed to protect the tool magazine.

[0003] However, an existing patent (publication number: CN218704306U) proposes a dynamic tool changer protection device. The device is fixed on the engraving and milling machine and connected to its electrical control mechanism through a mounting base. During the use of the device, the high-pressure gas generated by the air pump is sprayed out through the air pipe and air guide cover to act on the flying waste chips, applying resistance to them, which can effectively reduce their impact on the protective plate, thereby avoiding damage to the protective plate. On the one hand, it ensures the protective effect of the device, and on the other hand, it improves the service life of the protective plate. When tool changing is required, the second motor drives the protective plate to rotate through the connecting frame, opening one end of the protective box. The first motor drives the tool disc to rotate, thereby unscrewing the tool for automatic tool changing.

[0004] However, since the protective plate and the protective box are rotatably connected, a certain clearance space needs to be designed. The above technical solutions use sponge to provide clearance and seal the protective box. However, during part machining, the cutting tool rotates at high speed, resulting in very high temperature of the debris. When the debris falls onto the sponge, it may melt or adhere to the sponge, thus affecting the sealing performance of the protective box. Therefore, this application provides a mechanical automatic tool magazine protection device to solve the problems mentioned in the background art. Summary of the Invention

[0005] The purpose of this invention is to provide a mechanical automatic tool magazine protection device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a mechanical automatic tool magazine protective device, comprising a protective box, an installation box fixedly installed at the right end of the protective box, a hydraulic rod fixedly installed inside the installation box, a connecting rod fixedly installed at the rear end of the hydraulic rod, a toothed plate fixedly installed at the lower end of the connecting rod, movable grooves being provided at both the front and rear ends of the installation box, a rotating shaft being slidably connected inside the movable grooves, a connecting plate fixedly installed at the left end of the rotating shaft, a protective plate fixedly installed at the rear end of the connecting plate, and a gear fixedly installed on the rotating shaft, the gear contacting and connecting with the toothed plate.

[0007] As a further embodiment of this utility model: the mounting box has a sliding groove at the upper end of the moving groove, and a slider is slidably connected inside the sliding groove, and the slider is fixedly connected to the toothed plate.

[0008] As a further embodiment of this utility model: a guide rod is fixedly installed on the left end of the connecting plate, the guide rod is slidably connected inside the moving groove, and an arc-shaped groove is opened at the rear end of the moving groove, the arc-shaped groove being adapted to the guide rod.

[0009] As a further improvement of this utility model, a rubber pad is fixedly installed at the front end of the protective plate, and the rubber pad is compatible with the protective box.

[0010] As a further embodiment of this utility model: a motor is fixedly installed at the upper end of the protective box, a cutter head is fixedly installed at the output end of the motor, and a plurality of limiting cavities are opened at one end of the cutter head.

[0011] As a further improvement of this utility model, the cutter head is fan-shaped.

[0012] Compared with existing technologies, the advantages of this invention are as follows: The hydraulic rod drives the toothed plate to move back and forth. When the toothed plate moves backward, it contacts the gear, pushing the gear backward and simultaneously moving the connecting plate. The connecting plate then causes the protective plate to separate from the protective box. This solves the problem of needing to leave clearance space when sealing or opening the protective box, which could lead to chips entering the interior of the protective box.

[0013] In addition, after the guide rod contacts the rear end of the moving groove, the gear cannot move, causing its toothed plate to mesh with the gear. The gear drives the connecting plate to rotate counterclockwise, and the guide rod slides inside the arc groove. At the same time, the connecting plate drives the protective plate to move downward.

[0014] When the gear plate moves forward, the guide rod, located inside the arc-shaped groove, prevents the gear from moving. The gear plate then drives the gear to rotate. After the guide rod rotates clockwise and separates from the arc-shaped groove, the gear plate drags the gear forward. Simultaneously, the connecting plate causes the protective plate to seal against the protective box. After the protective plate separates from the protective box, it moves downward so that it is not on the same horizontal line as the opening of the protective box, thus avoiding interference during tool changes. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the mechanical automatic tool magazine protection device in this utility model; Figure 2 This is a schematic diagram of the internal structure of the mounting box in this utility model; Figure 3 This is a schematic diagram of the left side of the mounting box in this utility model; Figure 4This is a schematic diagram showing the positional relationship between the guide rod and the connecting plate in this utility model; Figure 5 This is a schematic diagram of the internal structure of the protective box in this utility model; Figure 6 This is a schematic diagram of the protective plate structure in this utility model; The correspondence between the labels and component names in the attached figures is as follows: 1. Protective box; 11. Mounting box; 12. Support rod; 2. Hydraulic rod; 21. Connecting rod; 22. Slide groove; 23. Slider; 24. Gear plate; 3. Rotating shaft; 31. Gear; 32. Connecting plate; 33. Protective plate; 34. Clearance groove; 4. Moving groove; 41. Arc groove; 42. Guide rod; 43. Rubber pad; 5. Motor; 51. Cutter head; 52. Limiting cavity; Detailed Implementation

[0016] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0017] refer to Figure 1 This is a schematic diagram of a mechanical automatic tool magazine protection device. A mounting box 11 is fixedly installed on the right end of the protective box 1. (As shown...) Figure 2 As shown, support rods 12 are welded to the outer ends of both the mounting box 11 and the protective box 1, and the support rods 12 are welded and fixed to the site of use. The mounting box 11 is equipped with a rotating mechanism, which includes a hydraulic rod 2 fixedly installed at the front end of the mounting box 11, a connecting rod 21 fixedly installed at the rear end of the hydraulic rod 2, sliding grooves 22 on the left and right sides of the mounting box 11, and sliding blocks 23 slidably connected inside the sliding grooves 22. A toothed plate 24 is fixedly installed between the two sliding blocks 23, and the upper end of the toothed plate 24 is fixedly connected to the connecting rod 21. A rotating shaft 3 is rotatably connected inside the mounting box 11, and a gear 31 is fixedly installed on the upper right side of the rotating shaft 3. The gear 31 meshes with the toothed plate 24. A connecting plate 32 is fixedly installed on the rotating shaft 3 to the left of the gear 31. The connecting plate 32 is L-shaped, and a protective plate 33 is fixedly installed on the rear side of the connecting plate 32. A clearance groove 34 is provided at the bottom of the mounting box 11, and the clearance groove 34 is adapted to the connecting plate 32. When the hydraulic rod 2 extends or retracts, it drives the toothed plate 24 to move left and right through the connecting rod 21. When the toothed plate 24 moves left and right, it drives the gear 31 to rotate. When the gear 31 rotates, it drives the connecting plate 32 synchronously through the rotating shaft 3. When the connecting plate 32 rotates, it drives the protective plate 33 to rotate at the same time. When the protective plate 33 rotates to a horizontal position with the protective box 1, it protects the protective box 1 and prevents chips from entering the interior of the protective box 1.

[0018] However, the above problems may exist. Since the protective plate 33 rotates from bottom to top to the horizontal line of the protective box 1, a certain amount of clearance is required between the protective box 1 and the protective plate 33. However, after the protective plate 33 and the protective box 1 are on the same horizontal line, there will be a certain distance, which makes it impossible to completely seal the protective box 1. Therefore, the above problems are solved by the following solution.

[0019] Specifically, such as Figure 3 and Figure 4 As shown, the mounting box 11 is equipped with a translation mechanism inside. The translation mechanism includes movable slots 4 opened at both the left and right ends inside the mounting box 11. The rotating shaft 3 can slide back and forth while rotating inside the movable slot 4. An arc-shaped slot 41 is opened on the lower rear end of the movable slot 4. A guide rod 42 is fixedly installed on the left end of the connecting plate 32. The guide rod 42 is slidably connected inside the movable slot 4. Since the gear 31 is slidably connected inside the movable slot 4, when the hydraulic rod 2 drives the gear plate 24 to move backward through the connecting rod 21, the gear plate 24 pushes the gear 31 backward. The gear 31 moves the connecting plate 32 and the protective plate 33 backward through the rotating shaft 3. The guide rod 42 moves backward to the rear end of the movable slot 4 and cannot move further, thus limiting the connection plate 32. At the same time, when the connection plate 32 moves backward, it drives the protective plate 33 backward, causing it to separate from the protective box 1.

[0020] At this time, because gear 31 cannot move, when gear plate 24 moves backward, it meshes with gear 31. Gear 31 rotates counterclockwise and drives connecting plate 32. When connecting plate 32 rotates counterclockwise, guide rod 42 rotates inside arc groove 41. Connecting plate 32 drives protective plate 33 downward, thereby moving it downward to the lower end of protective box 1.

[0021] When the toothed plate 24 moves backward, the guide rod 42 limits its movement within the arc-shaped groove 41, preventing the connecting plate 32 and gear 31 from moving forward. The toothed plate 24 then drives the gear 31 to rotate clockwise. The gear 31, through the rotating shaft 3 and the connecting plate 32, drives the guide rod 42 to rotate. When the guide rod 42 moves upward and separates from the arc-shaped groove 41, the connecting plate 32 and the protective plate 33 are at the same horizontal plane as the protective box 1. Since the guide rod 42 cannot limit the connecting plate 32 and the rotating shaft 3 after separating from the arc-shaped groove 41, the toothed plate 24 moves forward, dragging the gear 31 forward. The gear 31 moves forward within the moving groove 4 through the rotating shaft 3. As the rotating shaft 3 moves forward, it seals the protective plate 33 and the protective box 1 through the connecting plate 32. This prevents the protective plate 33 from failing to seal with the protective box 1 due to the need for clearance between them, thus preventing the chip residue from entering the interior of the protective box 1.

[0022] Preferably, a rubber pad 43 is fixedly installed on the front end face of the protective plate 33. Figure 6 As shown), the rubber pad 43 is adapted to the rear opening of the protective box 1.

[0023] Figure 1 and Figure 5 As shown, a motor 5 is fixedly installed at the upper end of the protective box 1, and a cutter head 51 is fixedly installed at the output end of the motor 5. The cutter head 51 is rotatably connected inside the protective box 1. The cutter head 51 is fan-shaped and has several limiting cavities 52 for placing the cutter. When the protective plate 33 opens the protective box 1, the motor 5 rotates the cutter head 51, thereby unscrewing the cutter and replacing it. The motor 5 screws the cutter into the protective box 1 through the cutter head 51. The rotating mechanism moves the protective plate 33 upward to the same horizontal plane as the protective box 1, and the translation mechanism moves the protective plate 33 forward to the rear end of the protective box 1 to seal it.

[0024] Working principle: The hydraulic rod 2 drives the toothed plate 24 to move backward. When the toothed plate 24 moves backward, it pushes the gear 31 backward, and at the same time drives the connecting plate 32, causing the protective plate 33 to separate from the protective box 1. When the guide rod 42 contacts the moving groove 4, the gear 31 can no longer move backward, so that the toothed plate 24 and the gear 31 are meshed. The gear 31 drives the connecting plate 32 to rotate counterclockwise, and the guide rod 42 slides inside the arc-shaped groove 41. At the same time, the connecting plate 32 drives the protective plate 33 to move downward. When the toothed plate 24 moves forward, the gear 31 cannot move because the guide rod 42 is inside the arc groove 41. The toothed plate 24 drives the gear 31 to rotate. When the guide rod 42 rotates clockwise and separates from the arc groove 41, the toothed plate 24 drags the gear 31 forward. At the same time, the connecting plate 32 drives the protective plate 33 to seal with the protective box 1. When the protective plate 33 is opened, the motor 5 rotates the cutter head 51 out to change the cutter. Then, the motor 5 rotates the cutter head 51 into the protective box 1. The hydraulic rod 2 then seals the protective plate 33 for the protective box 1.

[0025] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A mechanical automatic tool magazine protection device, comprising a protective box (1), characterized in that, The protective box (1) is fixedly installed with a mounting box (11) at the right end. A hydraulic rod (2) is fixedly installed inside the mounting box (11). A connecting rod (21) is fixedly installed at the rear end of the hydraulic rod (2). A toothed plate (24) is fixedly installed at the lower end of the connecting rod (21). A moving groove (4) is opened at both the front and rear ends inside the mounting box (11). A rotating shaft (3) is slidably connected inside the moving groove (4). A connecting plate (32) is fixedly installed at the left end of the rotating shaft (3). A protective plate (33) is fixedly installed at the rear end of the connecting plate (32). A gear (31) is fixedly installed on the rotating shaft (3). The gear (31) is in contact with the toothed plate (24).

2. The mechanical automatic tool magazine protection device according to claim 1, characterized in that, The mounting box (11) has a sliding groove (22) at the upper end of the moving groove (4). The sliding groove (22) is connected to a slider (23), and the slider (23) is fixedly connected to the toothed plate (24).

3. The mechanical automatic tool magazine protection device according to claim 1, characterized in that, A guide rod (42) is fixedly installed on the left end of the connecting plate (32). The guide rod (42) is slidably connected inside the moving groove (4). An arc groove (41) is opened at the rear end of the moving groove (4). The arc groove (41) is adapted to the guide rod (42).

4. The mechanical automatic tool magazine protection device according to claim 1, characterized in that, A rubber pad (43) is fixedly installed at the front end of the protective plate (33), and the rubber pad (43) is compatible with the protective box (1).

5. The mechanical automatic tool magazine protection device according to claim 1, characterized in that, The upper end of the protective box (1) is fixedly installed with a motor (5), and the output end of the motor (5) is fixedly installed with a cutter head (51). One end of the cutter head (51) is provided with several limiting cavities (52).

6. The mechanical automatic tool magazine protection device according to claim 5, characterized in that, The cutter head (51) is fan-shaped.

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