A protective device for milling machines

Abstract

This utility model relates to the field of milling machine technology, specifically to a protective device for milling machines. It includes a protective plate disposed inside the milling machine. A sliding door is provided on the milling machine, with side panels connected to its left and right sides. The top of the sliding door is a top plate. Several evenly arranged protective plates are disposed on each panel of the sliding door. Each protective plate includes a baffle plate, which is sheet-shaped and inclinedly disposed on the inner panel, forming an angle with the inner panel to block flying debris. The inclined top of the baffle plate is fixed to the inner panel of the sliding door, and the inclined bottom of the baffle plate is close to the machining position inside the milling machine, facilitating external observation of the milling machine's internal workings. This utility model solves the technical problem of maintaining visibility of the milling machine's internal workings while simultaneously improving protection against flying debris.

Description

Technical Field

[0001] This utility model relates to the field of milling machine technology, and more specifically, to a protective device for milling machines. Background Technology

[0002] CNC milling machines are equipped with high-speed rotating milling cutters used to mill workpieces on the internal machining platform. Because the workpieces are hard and the milling cutters rotate at high speed, if the CNC program malfunctions or the workpiece is clamped, the high-speed rotating milling cutter can easily break and detach, causing the workpiece to shatter and fly out of the milling machine under high-speed rotation, resulting in a safety accident. Therefore, the machining platform of a milling machine is generally covered by a protective cover to improve the safety of milling operations. The protective cover also prevents the operator from coming into contact with the high-speed rotating cutter, being injured by flying sharp chips or high-temperature coolant, and controls the spread of chips and coolant. The protective cover usually also has a sliding door, which can be temporarily opened to transfer materials during processing. During milling, the sliding door is manually closed, using the cover to protect external personnel.

[0003] Modern milling machine protective covers are typically made of transparent polycarbonate to facilitate observation of the internal machining process. They are also embedded in metal sheets (steel or aluminum) to provide higher strength and impact resistance. However, transparent protective covers themselves are not very impact-resistant and are easily punctured by flying debris. Moreover, the machining debris continuously splashed onto the transparent cover during processing can easily wear down and obscure it. On the other hand, if the cover is made of pure metal sheet, it is difficult to observe the machining process inside the milling machine.

[0004] Therefore, there is a need for a milling machine protection device that can improve the protection performance of milling machines, make them less susceptible to being smashed, and allow for real-time observation of the inside of the milling machine. Utility Model Content

[0005] The purpose of this application is to provide a protective device for milling machines that solves the technical problem of maintaining visibility of the work inside the milling machine while improving protection against flying debris inside the milling machine.

[0006] To solve the above-mentioned technical problems, the solution adopted in this application is as follows:

[0007] A protective device for a milling machine includes a protective plate disposed inside the milling machine, and a sliding door is provided on the milling machine.

[0008] Preferably, the sliding door is connected to side door panels on the left and right sides respectively, and the top of the sliding door is a top plate. When the sliding door is closed, the front, two sides and the top of the sliding door cover the machining position inside the milling machine.

[0009] Preferably, each panel of the sliding door is provided with a number of evenly arranged protective plates.

[0010] Preferably, the protective plate includes a baffle, which is sheet-shaped and is inclinedly disposed on the inner side plate surface, with an angle between the baffle and the inner side plate surface.

[0011] Preferably, the inclined top end of the baffle is fixed to the inner side panel of the sliding door, and the inclined bottom end of the baffle is close to the machining position inside the milling machine.

[0012] Preferably, in the plurality of uniformly arranged protective plates, the spacing between the baffles of adjacent protective plates is greater than or equal to the width of the baffle.

[0013] Preferably, a number of reinforcing ribs are fixedly connected between the baffle and the inner side plate, and the reinforcing ribs are evenly arranged along the length of the baffle.

[0014] Preferably, the side of the rib plate near the inclined bottom end of the baffle is set as an arc edge, and the arc-shaped opening of the arc edge faces downward.

[0015] Preferably, the top of the sliding door is also provided with several evenly arranged top protective components.

[0016] Preferably, the top protective component includes a baffle and several vertical plates, the several vertical plates being vertically and evenly fixed on the inner side plate of the top, and a baffle being fixedly connected to the several vertical plates, with the baffle facing downwards.

[0017] Preferably, the sliding door includes two openable sliding secondary doors, and when the two sliding secondary doors are closed, the distance between the two side door panels is greater than the length of the machining platform inside the milling machine.

[0018] Preferably, each of the two sliding secondary doors is provided with a number of protective plates, and the closed ends of the two sliding secondary doors are also provided with locking components, including locking blocks.

[0019] Preferably, in the protective plate of one of the sliding secondary doors, a locking block is fixedly provided on the side of the baffle near the closed end of the sliding secondary door, and the length direction of the locking block is consistent with the sliding direction of the sliding secondary door.

[0020] Preferably, in the protective plate of the other sliding secondary door, a groove is provided on the side of the baffle near the closed end of the sliding secondary door, a magnetic block is fixed inside the groove, and the opening direction of the groove is consistent with the sliding direction of the sliding secondary door.

[0021] Preferably, the card block is matched with the slide groove.

[0022] The technical solution of this application has at least the following advantages and beneficial effects:

[0023] In this utility model, by connecting side door panels to both sides of the sliding door, the processing position inside the milling machine is covered by the front, two sides and top of the sliding door, thus forming a preliminary protection for the processing position; then, several protective plates are set on each panel of the sliding door, and the protective plates form a second protective layer on the panel surface to improve the protection effect.

[0024] In this utility model, the protective plate is fixed at one end by an inclined baffle, so that the flying fragments will collide with the surface of the baffle, causing the baffle to bend and form a bending moment, which is offset by the internal resistance moment, thereby improving the buffering effect of the baffle, reducing the force of the fragments colliding with the sliding door, and improving the protection strength.

[0025] In this invention, the inclined baffles are fixed to the sliding door at the top and close to the milling machine at the bottom, allowing external workers to observe the inside of the milling machine from above at an inclined angle. This minimizes obstruction of the workers' view. Furthermore, the evenly arranged inclined baffles can block debris splashed out during milling, preventing it from easily damaging the transparent cover on the sliding door. This provides protection while maintaining visibility of the interior. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model placed in a milling machine.

[0027] Figure 2 This is a cross-sectional view of the present invention placed in a milling machine.

[0028] Figure 3 This is a cross-sectional structural diagram of the protective plate component in this utility model.

[0029] Figure 4 This is a cross-sectional view of the sliding door in this utility model.

[0030] Figure 5 In this utility model Figure 2 A magnified structural diagram of A in the diagram.

[0031] Figure 6 In this utility model Figure 3 A magnified structural diagram of B in the diagram.

[0032] Figure 7 In this utility model Figure 4 A magnified structural diagram of C.

[0033] In the diagram: 1-protective plate, 101-baffle, 102-rib plate, 103-arc edge, 2-sliding door, 3-milling machine, 4-side door panel, 5-top protective component, 501-baffle, 502-vertical plate, 6-clamping component, 601-clamping block, 602-slide groove, 603-magnetic block. Detailed Implementation

[0034] 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 protection scope of the present utility model.

[0035] It should be noted that similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. The terms "center," "upper," "lower," "inner," and "outer," indicating orientation or positional relationships based on the orientation or positional relationships shown in the figures, or the orientation or positional relationships commonly used when the product is in use, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as a limitation on this application. It should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0036] Example

[0037] Please refer to Figures 1-7 This utility model provides a protective device for a milling machine, including a protective plate 1. The protective plate 1 is installed inside the processing space of the milling machine 3 to protect the processing position inside the milling machine 3. The front of the milling machine 3 is provided with a push-pull door 2 that can be opened and closed manually, so as to facilitate the placement, processing or removal of the workpiece inside the milling machine 3.

[0038] Side door panels 4 are fixedly connected to the left and right sides of the sliding door 2, and a top plate is fixed to the top of the sliding door 2. When the milling machine 3 is processing the workpiece, the sliding door 2 is manually closed. At this time, the front, sides and top of the sliding door 2 cover the processing position inside the milling machine 3, and the processing position is initially protected by the various panels on the sliding door 2.

[0039] Among them, the sliding door 2 and the side door panel 4 are provided with several protective plates 1. The protective plates 1 are evenly arranged on the panel, and the protective plates 1 set on the side form a second protective layer on the panel to improve the protective effect.

[0040] The top of the sliding door 2 is also provided with several evenly arranged top protective components 5, which are used to form a second protective layer on the top panel.

[0041] Furthermore, because the milling cutter in the milling machine 3 rotates at high speed, when the cutter breaks or the workpiece breaks off, the high-speed rotational force causes fragments of the cutter and workpiece to be thrown out at high speed, hitting the sliding door 2 and the cover of the milling machine 3. The powerful force can easily cause the fragments to penetrate the milling machine 3 and fly out, causing a safety accident. Therefore, the first layer of cover formed by the sliding door 2 and the side door panel 4, together with the protective plates 1 on each panel and the top protective member 5, forms a second layer of protection. This double-layer protection reduces the probability of fragments penetrating the milling machine 3. In order to reduce the powerful force carried by the flying fragments and further improve the protection, the protective plates 1 and the top protective member 5 are also designed as buffer structures.

[0042] For specific details, please refer to Figures 4-7 In this embodiment, the protective plate 1 includes a baffle 101, a stiffener 102, and an arc plate.

[0043] The baffle 101 is sheet-shaped, with one side fixed to the inner panel of the sliding door 2 (or the inner panel of the side door panel 4). The baffle 101 is inclined on the inner panel, and there is an angle between the inclined baffle 101 and the inner panel, which is less than 90 degrees. This makes the baffle 101 on the inner panel relatively inclined to the machining position inside the milling machine 3. When fragments from the machining position are ejected, they will collide with the inclined baffle 101. Because one side of the baffle 101 is fixed, the baffle 101 will be subjected to force, and a bending moment will occur inside the baffle 101. The surface of the baffle will bend, and the stress generated during bending will form a resisting moment to resist the bending moment. Finally, when the internal resisting moment equals the external bending moment, the plate reaches a new equilibrium state, and the bending deformation stops increasing (within the elastic range), thereby offsetting the effect of the fragments flying onto the surface of the baffle 101 and improving the buffering capacity of the baffle 101.

[0044] As the force of the fragments gradually decreases, the internal stress generated by the bending of the baffle 101 will be released (within the elastic range), causing the plate to return to its original shape and stop bending.

[0045] The inclined top of the baffle 101 is fixedly connected to the inner side panel, and the inclined bottom is close to the machining position inside the milling machine 3. The spacing between several evenly arranged baffles 101 is greater than or equal to the width of the baffle 101. Because transparent covers are provided on the traditional sliding door 2 and on both sides of the milling machine 3, it is convenient for operators to observe the working conditions inside the milling machine 3 and take timely action. Therefore, please refer to... Figure 1 By using several inclined baffles 101 with a gap between adjacent baffles 101, when external personnel look down at an inclined angle, they can directly observe the processing inside the milling machine 3 through the gap between adjacent baffles 101 (refer to the blade structure of a louver). This reduces the impact of several protective plates 1 covering the processing position of the milling machine 3 through the sliding door 2 and side door 4 on the observation of personnel through the transparent cover, and maintains the personnel's observation response speed.

[0046] In addition, a number of stiffeners 102 are fixedly connected between the baffle 101 and the inner side plate. The stiffeners 102 are evenly arranged along the length of the baffle 101. The side of the stiffener 102 near the inclined bottom end of the baffle 101 is set as an arc edge 103, and the arc opening of the arc edge 103 faces downward.

[0047] Because the thickness of the baffle 101 is not too thick (if it is too thick, its weight will be too heavy, which will affect the manual pushing and pulling speed of the sliding door 2), when the fragments fly at high speed and come into contact with the baffle 101, the bending moment generated by the huge force can easily exceed the resistance moment of the baffle 101 itself, causing the baffle 101 to bend and break. Therefore, several stiffeners 102 are used at the angle between the baffle 101 and the inner side panel to provide support for the baffle 101 and reduce the bending amplitude of the baffle 101 after being subjected to force, thereby improving the resistance to bending moment.

[0048] However, the support of the stiffener 102 reduces the bending amplitude of the baffle 101 under stress, thus decreasing the buffering effect of the baffle 101 on the flying debris. In order to maintain the bending performance of the baffle 101 and provide better buffering for the flying debris, the stiffener 102 is used near the arc edge 103 of the inclined bottom end of the baffle 101 to reduce the support strength of the stiffener 102 on the inclined bottom end of the baffle 101, thereby improving the bending performance of the inclined bottom end of the baffle 101. This allows the baffle 101 to maintain its buffering effect on the flying debris while being supported by the stiffener 102, reducing the occurrence of flying debris penetrating the baffle 101.

[0049] For specific details, please refer to Figures 5-6In this embodiment, the top protective component 5 includes a baffle 501 and a vertical plate 502.

[0050] The top protective component 5 is located on the top panel of the sliding door 2. Several vertical plates 502 are vertically fixed on the inner side panel of the top. A baffle 501 is fixedly connected to the several vertical plates 502. Since the top of the milling machine 3 does not need to be covered with a transparent cover for observation, the surface of the baffle 501 faces the processing position of the milling machine 3 below, so that the flying fragments make hard contact with the surface of the baffle 501 for buffering. The vertical plates 502 separate the baffle 501 from the top panel of the sliding door 2, forming a double-layer panel for buffering.

[0051] It is worth noting that the side door panels 4 connected to both sides of the sliding door 2 gradually move closer to the machining platform set in the center of the milling machine 3 as the sliding door 2 closes. To avoid interference between the side door panels 4 and the machining platform during movement, the distance between the two side door panels 4 is greater than the length of the machining platform after the sliding door 2 is closed. A transparent cover is also provided on the side door panels 4 to facilitate the observation of the milling machine 3's machining process from the side of the milling machine 3 by the operator.

[0052] Furthermore, in a traditional milling machine 3, after the sliding door 2 is manually closed, milling work begins. If a malfunction causes debris to fly out from inside the milling machine 3, larger fragments hitting the closed sliding door 2 can cause a safety accident. Because the two separate sliding secondary doors are not connected at their closing ends, the force applied to the closing end may directly break open the two sliding secondary doors through the gap, resulting in a breakage. Therefore, in this embodiment, a snap-fit ​​component 6 is also provided at the closing end of the sliding door 2 to connect the two sliding secondary doors and their protective plates 1 together, improving the protective strength.

[0053] Please refer to the following: Figure 5 and Figure 7 The card connector 6 includes a card block 601, a slide groove 602, and a magnetic block 603.

[0054] Specifically, the sliding door 2 consists of two sliding auxiliary doors mounted on the milling machine 3. During the milling process, when the operator loads or unloads the workpiece, the two sliding auxiliary doors are opened or closed laterally. Each sliding auxiliary door is equipped with several protective plates 1, which move along with the sliding auxiliary door.

[0055] A latching component 6 is installed on the protective plate 1. In one of the protective plates 1 for a sliding secondary door, a latching block 601 is installed on the side of the baffle 101 near the closed end of the sliding secondary door. The length direction of the latching block 601 is consistent with the sliding direction of the sliding secondary door. The size of the latching block exceeds the sliding secondary door.

[0056] In the protective panel 1 of the other sliding secondary door, a groove 602 is located on the side of the baffle 101 near the closed end of the sliding secondary door. A magnetic block 603 is fixed inside the groove 602, and the opening direction of the groove 602 is consistent with the sliding direction of the sliding secondary door. The part of the locking block 601 that extends beyond the groove 602 matches the groove 602, thus forming a door bolt effect and entering the locking groove 602. The locking groove 602 and the locking block 601 are at the same height and are matched in position. The magnetic block 603 generates an attractive force on the locking block 601, making the position of the locking block 601 stable.

[0057] During the manual closing of the sliding door 2, the protective plates 1 on the two sliding secondary doors begin to approach and abut against each other. The locking blocks 601 and the sliding grooves 602 on them match, thereby using the part of the locking blocks 601 that exceeds the closing part to lock the closed ends of the two sliding secondary doors together, thereby improving the structural strength of the closed ends of the two sliding secondary doors. When flying debris hits the two sliding secondary doors, it will first contact the locking piece 6 between the protective plates 1 on the two doors, making it difficult for flying debris to break through the door edge gap at the closed ends of the two sliding secondary doors, thus improving the protection strength of the sliding door 2.

[0058] The card block 601 is designed as a metal structure that is easily attracted by magnets. When the card block 601 is slid into the slide groove 602, the magnetic block 603 in the slide groove 602 will magnetically attract and hold the card block 601, making it difficult to detach. When the two closed sliding doors are manually pulled open, the pulling force will overcome the magnetic attraction force and cause the card block 601 to separate.

[0059] The various embodiments of this utility model have now been described in detail. To avoid obscuring the concept of this utility model, some details known in the art have not been described. Those skilled in the art will fully understand how to implement the technical solution of this utility model based on the above description. The scope of this utility model is defined by the appended claims.

Claims

1. A protection device for a milling machine, comprising a protection panel (1) arranged inside a milling machine (3) in which a sliding door (2) is provided, Its characteristics are: The sliding door (2) is connected to side door panels (4) on the left and right sides respectively. The top of the sliding door (2) is a top plate. When the sliding door (2) is closed, the front, two sides and the top of the sliding door (2) cover the processing position inside the milling machine (3). The sliding door (2) has several uniformly arranged protective plates (1) on each panel. The protective plate (1) includes a baffle (101), which is sheet-shaped and is inclinedly disposed on the inner side plate surface, with an angle between it and the inner side plate surface; The inclined top end of the baffle (101) is fixed to the inner side panel of the sliding door (2), and the inclined bottom end of the baffle (101) is close to the machining position inside the milling machine (3).

2. A guard for a milling machine as claimed in claim 1, wherein In the plurality of uniformly arranged protective plates (1), the spacing between the baffles (101) of adjacent protective plates (1) is greater than or equal to the width of the baffles (101).

3. A guard for a milling machine as claimed in claim 1, wherein, Several stiffeners (102) are fixedly connected between the baffle (101) and the inner side plate, and the stiffeners (102) are evenly arranged along the length direction of the baffle (101).

4. A guard for a milling machine as claimed in claim 3, wherein The side of the stiffener (102) near the inclined bottom end of the baffle (101) is set as an arc edge (103), and the arc opening of the arc edge (103) faces downward.

5. A guard for a milling machine as defined in claim 1, wherein The top of the sliding door (2) is also provided with several evenly arranged top protective parts (5).

6. A guard for a milling machine as claimed in claim 5, wherein The top protective component (5) includes a baffle (501) and several vertical plates (502). The several vertical plates (502) are vertically and evenly fixed on the inner side plate of the top. A baffle (501) is fixedly connected to the several vertical plates (502), and the plate surface of the baffle (501) faces downward.

7. A guard for a milling machine as defined in claim 1, wherein The sliding door (2) includes two openable sliding secondary doors. When the two sliding secondary doors are closed, the distance between the two side door panels (4) is greater than the length of the processing platform inside the milling machine (3).

8. A guard for a milling machine as claimed in claim 7, wherein The two sliding secondary doors are each equipped with a number of protective plates (1), and the closed ends of the two sliding secondary doors are also equipped with snap-fit ​​components (6), which include snap-fit ​​blocks (601). In the protective plate (1) of one of the sliding secondary doors, a blocking block (601) is fixedly provided on the side of the baffle (101) near the closed end of the sliding secondary door, and the length direction of the blocking block (601) is consistent with the sliding direction of the sliding secondary door; In the protective plate (1) of the other sliding secondary door, the baffle (101) is provided with a groove (602) on the side near the closed end of the sliding secondary door. A magnetic block (603) is fixed inside the groove (602). The opening direction of the groove (602) is consistent with the sliding direction of the sliding secondary door. The card block (601) is matched with the slide (602).

Images