Tool magazine door structure of horizontal machining center

Abstract

The utility model belongs to the technical field of horizontal machining centers, and particularly relates to a horizontal machining center tool magazine door structure which comprises a bottom plate with a tool magazine door arranged on the outer surface in a penetrating mode, two sliding grooves symmetrically formed in the upper side and the lower side of the bottom plate, a door plate assembly connected between the two sliding grooves in a sliding mode, a transverse plate, a safety assembly and a controller. The transverse plate is arranged in front of the door plate assembly, a fixing column is arranged on the transverse plate and is in transmission connection with the door plate assembly, a servo motor is fixed to the outer wall of the left front portion of the bottom of the bottom plate, the output end of the servo motor is fixedly connected with a lead screw, and the lead screw is in threaded connection with one end of the transverse plate; the safety assembly comprises a movable plate, the movable plate is connected to the middle of the bottom end of the transverse plate through a plurality of springs, a pressure sensor used for sensing pressure borne by the movable plate is arranged between the movable plate and the transverse plate, and the controller is in signal connection with the pressure sensor and the servo motor.

Description

Technical Field

[0001] This utility model belongs to the technical field of horizontal machining centers, and in particular relates to a tool magazine door structure for horizontal machining centers. Background Technology

[0002] A horizontal machining center is a common type of CNC machine tool, characterized by a horizontal worktable and a vertical spindle. A horizontal machining center typically consists of a worktable, spindle, tool magazine, and control system. The tool magazine is equipped with a tool magazine door for easy tool changing.

[0003] Chinese utility model patent CN221088269U discloses an automatic tool magazine door device for a horizontal machining center. This device includes a base plate with a tool magazine door extending through its outer surface. As the base plate moves up and down, it contacts limit switches on the upper and lower sides, automatically controlling the opening and closing distance of the door. The control of the door's travel is relatively convenient, facilitating the opening and closing of the tool magazine door. However, while this automatic tool magazine door device allows for convenient control of the door's opening and closing, it lacks a safety anti-pinch function, posing a risk of injury during tool changing and thus exhibiting low safety.

[0004] Therefore, there is an urgent need to improve the existing automatic tool magazine door device of horizontal machining centers and provide a horizontal machining center tool magazine door structure with anti-pinch function and high safety. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by providing a horizontal machining center tool magazine door structure that is reasonably designed, simple in structure, has anti-pinch function, and is safer, thereby solving the problems existing in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A tool magazine door structure for a horizontal machining center includes a base plate with a tool magazine door extending through its outer surface. Two symmetrical sliding grooves extending in a left-right direction are formed on the upper and lower sides of the base plate. A door panel assembly for closing the tool magazine door is slidably connected between the two grooves. The structure also includes a horizontal plate, a safety component, and a controller. The horizontal plate is located in front of the door panel assembly and has a fixed post that is drively connected to the door panel assembly. A servo motor is fixed to the bottom left front outer wall of the base plate, and a lead screw is fixedly connected to the output end of the servo motor. The lead screw is threadedly connected to one end of the horizontal plate. A vertical rod is fixedly installed on the right front of the base plate and slidably connected to the other end of the horizontal plate. The safety component includes a movable plate connected to the middle of the bottom end of the horizontal plate by several springs. A pressure sensor for sensing the pressure on the movable plate is provided between the movable plate and the horizontal plate. The controller is connected to both the pressure sensor and the servo motor.

[0008] Preferably, there are two door panel assemblies, which are arranged symmetrically about the base plate. The two door panel assemblies are linked by a horizontal plate and their sliding directions are always opposite to each other.

[0009] Preferably, the door panel assembly includes a door body, a limiting strip, and a guide groove. The limiting strip is fixed to the rear outer wall of both the upper and lower ends of the door body. The limiting rod is fixedly installed on the inner side of both sliding grooves. The limiting strip engages and slides in the corresponding sliding groove and slides on the outer side of the limiting rod. The guide groove is provided on the front outer wall of the side of the two door bodies that are close to each other.

[0010] Preferably, the guide groove includes a vertical section and an inclined section located at the bottom of the vertical section, the inclined section being connected to the vertical section.

[0011] Preferably, two fixed posts are symmetrically fixed on the rear outer wall of the horizontal plate, and the two fixed posts are guided and slidably in two guide grooves respectively.

[0012] Preferably, the safety component further includes a first proximity switch, a second proximity switch, and a sleeve. A groove is provided at the bottom center of the horizontal plate, and the upper part of the movable plate is engaged and slidably inside the groove. First proximity switches are fixedly installed on the top of both the left and right ends of the movable plate. A second proximity switch is provided above each first proximity switch. The two second proximity switches are respectively fixed on the inner walls of the left and right ends of the groove. Both the first proximity switches and the second proximity switches are connected to the controller signal.

[0013] Preferably, two sleeves are symmetrically fixedly installed on the inner top of the horizontal plate, and the bottom ends of the two sleeves are slidably connected to the movable plate. Two pressure sensors are respectively installed on the inner side of the top of the two sleeves, and a spring is fixedly connected between the movable plate and the pressure sensors.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] In this invention, by starting the servo motor to control the lead screw to rotate, the horizontal plate can be controlled to move vertically downward along the vertical rod. Two fixed posts fixed on the rear end face of the horizontal plate can move downward along the vertical sections of the two guide grooves respectively. At this time, the door is in a stationary state. When the fixed posts move to the inclined section of the guide groove and continue to move vertically downward, they can squeeze and push the two door panel assemblies to move synchronously along the limit rod in the direction of mutual approach until the two door panel assemblies abut against each other. The operation is simple and facilitates quick opening and closing of the bottom plate.

[0016] Before the control door assembly closes, the horizontal plate can move downwards from above the knife magazine door. When the movable plate touches a person, it retracts into the horizontal plate as it moves downwards, bringing the first and second proximity switches closer together. The controller can then send a shut-off electrical signal to the servo motor. Alternatively, when the movable plate retracts, the spring will compress and transmit pressure to the pressure sensor. The controller monitors and compares the pressure data. When the pressure exceeds the set value, it can send a shut-off electrical signal to the servo motor. This double safety feature effectively prevents pinching accidents and enhances operational safety. Attached Figure Description

[0017] 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. The drawings are described as follows:

[0018] Figure 1 This is a three-dimensional front view structural diagram of the present invention;

[0019] Figure 2 This is a front view structural diagram of the door panel assembly of this utility model in the closed state;

[0020] Figure 3 This is a rear view structural diagram of the horizontal plate and the fixed column of this utility model;

[0021] Figure 4 This is a rear view schematic diagram of the guide groove and fixing column of this utility model;

[0022] Figure 5 This is a front view schematic diagram of the overall structure of the safety component of this utility model;

[0023] Figure 6 This is a front view schematic diagram of the overall structure of the door panel assembly of this utility model.

[0024] In the picture:

[0025] 1. Body of the horizontal machining center; 2. Base plate; 3. Slide groove; 4. Limiting rod; 5. Door panel assembly; 51. Door body; 52. Limiting strip; 53. Guide groove; 6. Horizontal plate; 7. Fixed column; 8. Safety components; 81. Movable plate; 82. First proximity switch; 83. Second proximity switch; 84. Spring; 85. Pressure sensor; 86. Sleeve; 9. Servo motor; 10. Lead screw; 11. Vertical rod; 12. Controller. Detailed Implementation

[0026] The embodiments described below are merely some embodiments of the present invention and do not represent all embodiments consistent with the present invention. Exemplary embodiments will now be described with reference to the accompanying drawings:

[0027] like Figure 1-6 As shown in the figure, the tool magazine door structure of the horizontal machining center of this utility model includes a base plate 2 with a tool magazine door extending through its outer surface. The base plate 2 is fixedly installed at the middle of the front end of the machine body 1 of the horizontal machining center. Two sliding grooves 3 extending in the left-right direction are symmetrically opened on the upper and lower sides of the base plate 2. A door panel assembly 5 located in front of the base plate 2 for closing the tool magazine door is slidably connected between the two sliding grooves 3. It also includes a horizontal plate 6, a safety component 8, and a controller 12. The horizontal plate 6 is located in front of the door panel assembly 5, and the rear outer wall of the horizontal plate 6 has a... Two fixed columns 7 are fixed symmetrically on the left and right. A servo motor 9 is fixed on the outer wall of the bottom left front of the base plate 2. A lead screw 10 is fixedly connected to the output end of the servo motor 9. A vertical rod 11 is fixedly installed on the right front of the base plate 2. One end of the horizontal plate 6 is threaded on the outside of the lead screw 10, and the other end of the horizontal plate 6 is slidably sleeved on the outside of the vertical rod 11. A safety component 8 is installed at the middle of the bottom end of the horizontal plate 6. A controller 12 is installed at the top or bottom of the right end of the base plate 2. The controller 12 is connected to the safety component 8 and the servo motor 9 respectively.

[0028] As a preferred embodiment, based on the above structure, the door panel assembly 5 further includes a door body 51, a limiting strip 52, and a guide groove 53. The limiting strip 52 is fixed to the rear outer wall of both the upper and lower ends of the door body 51. The limiting rod 4 is fixedly installed on the inner side of both sliding grooves 3. The limiting strip 52 is engaged and slidably slidably sleeved on the outer side of the limiting rod 4. The guide groove 53 is provided on the front outer wall of the side of the two door bodies 51 that are close to each other.

[0029] In this embodiment, the sliding groove 3 and the limiting rod 4 are used to facilitate the stable sliding adjustment of the left and right door panel assemblies 5.

[0030] As a preferred embodiment, based on the above structure, the guide groove 53 further includes a vertical section and an inclined section located at the bottom of the vertical section, the inclined section being connected to the vertical section.

[0031] As a preferred embodiment, based on the above structure, the two fixed posts 7 are further guided to slide in the two guide grooves 53 respectively.

[0032] As a preferred embodiment, based on the above structure, preferably, there are two door panel assemblies 5, which are arranged symmetrically about the base plate 2, and the two door panel assemblies 5 are linked by the horizontal plate 6 and their sliding directions are always opposite to each other.

[0033] In this embodiment, when the horizontal plate 6 is controlled to move vertically up and down, the two fixed columns 7 on the left and right sides of its rear outer wall are used to facilitate the reverse sliding of the left and right doors 51, which makes it convenient to control the opening or closing of the bottom plate 2.

[0034] In a preferred embodiment, based on the above structure, the safety component 8 further includes a movable plate 81, a first proximity switch 82, a second proximity switch 83, a spring 84, a pressure sensor 85, and a sleeve 86. A groove is provided at the middle of the bottom end of the horizontal plate 6. The upper part of the movable plate 81 is engaged and slidably inside the groove. The top of both the left and right ends of the movable plate 81 are fixedly installed with first proximity switches 82. A second proximity switch 83 is provided above each first proximity switch 82. The two second proximity switches 83 are respectively fixed on the inner walls of the left and right ends of the groove. All first proximity switches 82 and second proximity switches 83 are signal connected to the controller 12. Two pressure sensors 85 and two sleeves 86 are symmetrically fixedly arranged on the left and right sides of the inner top of the horizontal plate 6. The two pressure sensors 85 are respectively located inside the top of the sleeves 86. The bottom ends of the two sleeves 86 are slidably connected to the movable plate 81. The spring 84 is fixedly connected between the movable plate 81 and the pressure sensor 85.

[0035] In this embodiment, during the downward movement of the horizontal plate 6, when the movable plate 81 touches the person below, it can slide and retract towards the inside of the horizontal plate 6. By bringing the first proximity switch 82 and the second proximity switch 83 close together, the controller 12 can send a shut-off electrical signal to the servo motor 9. Moreover, the pressure is transmitted to the pressure sensor 85 through the spring 84. The controller 12 monitors and compares the pressure data. When the pressure exceeds the set value, it can also send a shut-off electrical signal to the servo motor 9. With this double protection, pinching accidents can be effectively avoided, and the operation is safer.

[0036] The working principle of this utility model is as follows:

[0037] When the base plate 2 needs to be closed, the servo motor 9 can be started to control the lead screw 10 to rotate at a constant speed, so that the horizontal plate 6 can move vertically downward along the vertical rod 11. During the process of the horizontal plate 6 moving from above the base plate 2 to below it, the door panel assembly 5 can remain stationary because the fixed column 7 slides in the vertical section of the guide groove 53. During the downward movement of the horizontal plate 6, when the movable plate 81 touches the staff's arm or other parts, it can retract towards the inside of the horizontal plate 6. At this time, the first proximity switch 82 and the second proximity switch 83 are close together, and the controller 12 can send a closing electrical signal to the servo motor 9. When the movable plate 81 retracts, the spring 84 will be compressed and transmit the pressure to the pressure sensor 85. The controller 12 monitors and compares the pressure data. When the pressure exceeds the set value, it can also send a closing electrical signal to the servo motor 9. With the double insurance effect, it can effectively avoid pinching accidents and make the operation safer.

[0038] When the horizontal plate 6 moves below the bottom plate 2 and continues to move downward, the fixing column 7 can enter the inclined section of the guide groove 53. At this time, as the horizontal plate 6 and the fixing column 7 move vertically downward, they can squeeze and push the two door panel assemblies 5 to move synchronously along the limiting rod 4 in the direction of mutual approach until the two door panel assemblies 5 touch each other, which facilitates the closure of the bottom plate 2 and is simple to operate.

[0039] It should be noted that the first proximity switch 82, the second proximity switch 83, the pressure sensor 85, the servo motor 9 and the controller 12 in this solution are all existing products. Their specific power-on methods and operating control principles are mature technologies and have been disclosed. Therefore, they will not be described in detail in this solution.

[0040] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any equivalent changes, modifications, substitutions, and variations made by those skilled in the art based on the concept of this utility model and on the basis of existing technology through logical analysis, reasoning, or limited experiments shall be within the scope of protection defined by the claims.

Claims

1. A tool magazine door structure for a horizontal machining center, comprising a base plate (2) through which a tool magazine door is formed on its outer surface, wherein two sliding grooves (3) extending in a left-right direction are symmetrically formed on the upper and lower sides of the base plate (2), and a door panel assembly (5) for closing the tool magazine door is slidably connected between the two sliding grooves (3), characterized in that: It also includes a horizontal plate (6), a safety component (8) and a controller (12). The horizontal plate (6) is located in front of the door panel assembly (5). A fixed column (7) is provided on the horizontal plate (6) and is connected to the door panel assembly (5) in a transmission manner. A servo motor (9) is fixed on the outer wall of the bottom left front of the bottom of the base plate (2). A lead screw (10) is fixedly connected to the output end of the servo motor (9). The lead screw (10) is threadedly connected to one end of the horizontal plate (6). A vertical rod (11) is fixedly installed on the right front of the base plate (2). The vertical rod (11) is slidably connected to the other end of the horizontal plate (6). The safety component (8) includes a movable plate (81). The movable plate (81) is connected to the middle of the bottom end of the horizontal plate (6) by several springs (84). A pressure sensor (85) is provided between the movable plate (81) and the horizontal plate (6) to sense the pressure on the movable plate (81). The controller (12) is connected to the pressure sensor (85) and the servo motor (9) respectively.

2. The tool magazine door structure of a horizontal machining center according to claim 1, characterized in that: The number of door panel assemblies (5) is two. The two door panel assemblies (5) are arranged symmetrically about the bottom plate (2). The two door panel assemblies (5) are linked by a horizontal plate (6) and their sliding directions are always opposite to each other.

3. The tool magazine door structure of a horizontal machining center according to claim 1, characterized in that: The door panel assembly (5) includes a door body (51), a limiting strip (52), and a guide groove (53). The upper and lower ends of the door body (51) are fixed with limiting strips (52) on the rear outer walls. The inner sides of the two sliding grooves (3) are fixed with limiting rods (4). The limiting strips (52) are engaged and slid in the corresponding sliding grooves (3) and are slidably sleeved on the outer side of the limiting rods (4). The front outer walls of the two door bodies (51) that are close to each other are provided with guide grooves (53).

4. The tool magazine door structure of a horizontal machining center according to claim 3, characterized in that: The guide groove (53) includes a vertical section and an inclined section located at the bottom of the vertical section, the inclined section being connected to the vertical section.

5. The tool magazine door structure of a horizontal machining center according to claim 3, characterized in that: Two fixed columns (7) are fixedly installed symmetrically on the rear outer wall of the horizontal plate (6), and the two fixed columns (7) are guided and slid in the two guide grooves (53) respectively.

6. The tool magazine door structure of a horizontal machining center according to claim 1, characterized in that: The safety component (8) also includes a first proximity switch (82), a second proximity switch (83) and a sleeve (86). A groove is provided at the bottom center of the horizontal plate (6). The upper part of the movable plate (81) is engaged and slid inside the groove. The first proximity switch (82) is fixedly installed on the top of both the left and right ends of the movable plate (81). A second proximity switch (83) is provided above each first proximity switch (82). The two second proximity switches (83) are fixed on the inner walls of the left and right ends of the groove respectively. The first proximity switch (82) and the second proximity switch (83) are both signal connected to the controller (12).

7. The tool magazine door structure of a horizontal machining center according to claim 1, characterized in that: Two sleeves (86) are symmetrically fixedly installed on the inner top of the horizontal plate (6). The bottom ends of the two sleeves (86) are slidably connected to the movable plate (81). Two pressure sensors (85) are respectively installed on the inner side of the top of the two sleeves (86). A spring (84) is fixedly connected between the movable plate (81) and the pressure sensor (85).

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