Safety protection door of machine tool

Abstract

The utility model discloses a machine tool safety protection door which comprises two sliding doors and two linear modules, and the two linear modules drive the sliding doors to be opened and closed. The linear module comprises a motor, a speed reducer and a transmission assembly, the transmission assembly comprises a first transmission part and a second transmission part, the first transmission part is arranged on the sliding door, the second transmission part is arranged on the machine tool shell, the motor drives the first transmission part to linearly move relative to the second transmission part through the speed reducer, and then the first transmission part drives the sliding door to move. The two linear modules are arranged to drive the sliding door to be opened and closed, and the motors and the speed reducers of the linear modules drive the first transmission parts and the sliding door to move; independent movement, synchronous movement and asynchronous movement of the double-sliding door can be realized by controlling motors of the two groups of linear modules; therefore, synchronous action and adjustable opening and closing rhythm of the double sliding doors can be realized as required, and the structure can meet the requirements of small size and light weight.

Description

Technical Field

[0001] This utility model relates to the field of machine tool equipment technology, and in particular to a machine tool safety protection door. Background Technology

[0002] Machine tool safety doors are important safety devices, primarily used to prevent operators from entering hazardous areas while the machine tool is running, thereby reducing the occurrence of accidents. Existing double-door machine tool safety doors use cylinders to drive the doors open and close. However, using two sets of cylinders is not conducive to the synchronous movement and opening / closing rhythm of the double doors; achieving synchronous movement requires an additional synchronization mechanism, increasing the size and weight of the drive structure. Therefore, there is a need to design a machine tool safety door that can be synchronously driven, has an adjustable opening / closing rhythm, and is small in size and lightweight. Utility Model Content

[0003] This utility model provides a machine tool safety protection door to solve the above-mentioned technical problems.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] A machine tool safety door includes two sliding doors and two sets of linear modules. The two sets of linear modules drive the sliding doors to open and close. The linear modules include a motor, a reducer, and a transmission assembly. The transmission assembly includes a first transmission component and a second transmission component. The first transmission component is mounted on the sliding door, and the second transmission component is mounted on the machine tool housing. The motor drives the first transmission component to move linearly relative to the second transmission component via the reducer, thereby causing the first transmission component to move the sliding door.

[0006] Preferably, the transmission assembly adopts a gear and rack structure, with the first transmission component being a gear and the second transmission component being a rack.

[0007] Preferably, the motor and reducer are mounted on the mounting base component, which is fixed to the sliding door. The motor drives the gear to rotate after being reduced in speed by the reducer.

[0008] Preferably, the mounting base component includes a first mounting base and a second mounting base; the first mounting base is fixedly connected to the sliding door; the second mounting base is fixedly connected to the first mounting base, the reducer is disposed on the second mounting base, and the motor is connected to the reducer.

[0009] Preferably, the second mounting base includes a second diagonal brace, a second mounting plate, a second mounting component, and an adjusting component; the second mounting plate is fixedly connected to the second diagonal brace, and the adjusting component is used to level the second mounting plate. After the second mounting plate is leveled, the second diagonal brace is detachably connected to the first mounting base through the second mounting component.

[0010] Preferably, the second mounting component includes at least two sets of connecting assemblies, each assembly including a connector and a second elongated hole;

[0011] A second elongated hole is formed on the first mounting base. The connector passes through the second elongated hole and connects to the second diagonal brace, so that the second diagonal brace is pressed tightly against the first mounting base; or,

[0012] The second elongated hole is opened on the second diagonal brace. After the connector passes through the second elongated hole, it is connected to the first mounting base, so that the second diagonal brace is pressed tightly on the first mounting base.

[0013] The adjusting component includes at least two sets of adjusting assemblies, each assemblies including: adjusting screws, threaded holes, and lugs;

[0014] A threaded hole is formed on the second mounting plate, and a lug is fixed to the first mounting base. An adjusting screw passes through the lug and connects to the threaded hole; or...

[0015] The threaded hole is made on the ear plate, which is fixed on the first mounting base. The adjusting screw passes through the second mounting plate and connects to the threaded hole.

[0016] Preferably, each set of linear modules has a set of limit switches on both sides of the second mounting base along the sliding door movement direction, and the rack has limit plates at both ends. Limit signals are generated by the two sets of limit switches touching the two limit plates respectively.

[0017] Preferably, the linear module further includes a guide component for guiding the movement of the sliding door.

[0018] Preferably, the sliding door is provided with a rigid limit seat, and the two rigid limit seats abut against each other after the two sliding doors are closed.

[0019] Preferably, the opposite sides of the two sliding doors are provided with safety contact edges.

[0020] Beneficial effects:

[0021] This application discloses a machine tool safety door that uses two sets of linear modules to drive the opening and closing of the sliding door. The motors and reducers of the linear modules drive the first transmission component and the sliding door to move. By controlling the motors of the two sets of linear modules, the sliding doors can move independently, synchronously, or asynchronously. This allows for synchronized movement of the two sliding doors and adjustable opening and closing rhythm as needed, while maintaining a small size and light weight. This meets the usage requirements of machine tools in automated production lines and manual operation scenarios. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a structural schematic diagram of a machine tool safety protection door disclosed in this utility model;

[0024] Figure 2 This is a front view of a machine tool safety protection door disclosed in this utility model;

[0025] Figure 3 for Figure 1 A magnified view of part A in the image;

[0026] Figure 4 This is a structural schematic diagram of a linear module and mounting base assembly for a machine tool safety guard door disclosed in this utility model.

[0027] Figure 5 This is a side view of a linear module and mounting base assembly for a machine tool safety guard door disclosed in this utility model;

[0028] Figure 6 This utility model discloses a hidden rack mounting bracket and rack structure of a machine tool safety protection door line module and mounting base component assembly;

[0029] Figure 7 This is a front view of the hidden rack mounting bracket and rack of a machine tool safety protection door line module and mounting base component assembly disclosed in this utility model;

[0030] Figure 8 This is a side view of the hidden rack mounting bracket and the rack of a machine tool safety protection door line module and mounting base assembly disclosed in this utility model.

[0031] 1. Sliding door;

[0032] 2. Guiding components;

[0033] 3. Linear module; 31. Motor; 32. Reducer; 331. First transmission component; 332. Second transmission component; 34. Rack and pinion mounting bracket;

[0034] 4. Hard limit seat;

[0035] 5. Safety contact edge;

[0036] 6. Mounting base components; 61. First mounting base; 611. First mounting upright plate; 612. First mounting plate; 6121. First elongated hole; 613. First diagonal brace; 6111. First clearance notch; 62. Second mounting base; 621. Second diagonal brace; 622. Second mounting plate; 6231. Connector; 6232. Second elongated hole; 6241. Adjusting screw; 6243. Ear plate;

[0037] 7. Mounting plate; 71. Limit switch; 711. Switch mounting base; 712. First connecting assembly; 713. Second connecting assembly; 72. Limit plate. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0039] A machine tool safety door, combined with Figures 1-8 As shown, the device includes two sliding doors 1 and two sets of linear modules 3. The two sets of linear modules 3 drive the sliding doors 1 to open and close. Each linear module 3 includes a motor 31, a reducer 32, and a transmission assembly. The transmission assembly includes a first transmission component 331 and a second transmission component 332. The first transmission component 331 is mounted on the sliding door 1, and the second transmission component 332 is mounted on the machine tool housing. The motor 31 drives the first transmission component 331 to move linearly relative to the second transmission component 332 via the reducer 32, thereby causing the first transmission component 331 to move the sliding door 1. This application uses two sets of linear modules 3 to drive the sliding doors 1 to open and close. The motor 31 and reducer 32 of the linear modules 3 drive the first transmission component 331 and the sliding door 1 to move. By controlling the motors 31 of the two sets of linear modules 3, the individual, synchronous, and asynchronous movement of the two sliding doors can be achieved. This allows for the synchronous movement and adjustable opening and closing rhythm of the two sliding doors as needed, while maintaining a small size and light weight. This satisfies the high requirements for opening and closing rhythm when machine tools are used in automated production lines, and also meets the lower requirements for opening and closing rhythm when operated manually.

[0040] Preferably, the transmission assembly adopts a gear and rack structure, with the first transmission component 331 being a gear and the second transmission component 332 being a rack. The gear and rack structure is simple, rigid, precise, and low-cost, meeting practical application requirements. It is understood that the transmission assembly can also adopt a synchronous belt structure or a lead screw and nut structure.

[0041] Specifically, a mounting plate 7 is fixedly installed on the lower edge of the machine tool housing opening by screws. The mounting plate 7 is used to install and support the sliding door 1.

[0042] Specifically, the rack is fixed on the upper surface of the rack mounting bracket 34, which is fixed to the upper edge of the machine tool housing opening by screws.

[0043] Preferably, the motor 31 and the reducer 32 are mounted on the mounting base component 6, which is fixed to the sliding door 1. The motor 31 drives the gear to rotate after being reduced in speed by the reducer 32. The rotation of the gear and its meshing with the rack realize the movement of the gear, which in turn drives the mounting base component 6 and the sliding door 1 to move.

[0044] Specifically, motor 31 is a servo motor, which allows for individual, synchronous, or asynchronous driving of the two linear modules 3 via PLC programming. Reducer 32 is a right-angle reducer for commutation.

[0045] Preferably, the mounting base component 6 includes a first mounting base 61 and a second mounting base 62; the first mounting base 61 is fixedly connected to the sliding door 1; the second mounting base 62 is fixedly connected to the first mounting base 61, the reducer 32 is disposed on the second mounting base 62, and the motor 31 is connected to the reducer 32. This utilizes the space above the sliding door 1 to install the motor 31.

[0046] Specifically, the first mounting base 61 includes: a first mounting upright plate 611, a first mounting flat plate 612, a first mounting component, and a first diagonal brace 613. The first mounting flat plate 612 is detachably connected to the top of the sliding door 1 via the first mounting component. The first mounting upright plate 611 is fixedly connected to the upper surface of the first mounting flat plate 612 by welding. The two first diagonal braces 613 are connected to the first mounting upright plate 611 and the first mounting flat plate 612 by welding to enhance structural rigidity. The first mounting flat plate 612 is designed to reduce weight. In this embodiment, the first mounting component uses screws and washers. The first mounting flat plate 612 has a first elongated hole 6121, the length direction of which is perpendicular to the movement direction of the sliding door 1. Screws pass through the first elongated hole 6121 to connect to the sliding door 1, facilitating adjustment of the position of the first mounting flat plate 612 and ensuring the meshing of the adjusting gear and rack during assembly. It is understood that the first mounting component can also be a bolt pair.

[0047] Preferably, the second mounting base 62 includes a second diagonal brace 621, a second mounting plate 622, a second mounting component, and an adjusting component. The second mounting plate 622 is fixedly connected to the second diagonal brace 621. The adjusting component is used to level the second mounting plate 622. After the second mounting plate 622 is leveled, the second diagonal brace 621 is detachably connected to the first mounting base 61 via the second mounting component. This facilitates installation and debugging and ensures that the second mounting plate 622 is leveled, thereby ensuring smooth movement after the gear and rack mesh.

[0048] Specifically, the sliding door 1 has a mounting groove, and the first mounting plate 612 is installed in the mounting groove. The first mounting upright plate 611 is oriented towards the rack and is U-shaped, forming a first clearance notch 6111 between the first mounting upright plate 611 and the first mounting plate 612. The motor 31 passes through the first clearance notch 6111 and is connected to the reducer 32. The output axis of the motor 31 is perpendicular to the direction of movement of the sliding door 1. The reducer 32 is connected to the lower part of the second mounting plate 622 by screws. The output axis of the reducer 32 passes upward through the second mounting plate 622 and is connected to the gear.

[0049] Preferably, the second mounting component includes at least two sets of connecting components. In this embodiment, there are four sets of connecting components, with each pair of sets fixing a second diagonal brace 621.

[0050] The connecting assembly includes a connector 6231 and a second elongated hole 6232;

[0051] The second elongated hole 6232 is formed on the first mounting base 61. The connector 6231 passes through the second elongated hole 6232 and connects with the second diagonal brace 621, so that the second diagonal brace 621 is pressed against the first mounting base 61. It can be understood that the connector 6231 can be a screw or a bolt.

[0052] The adjustment component includes at least two sets of adjustment components; in this embodiment, there are two sets of adjustment components.

[0053] The adjustment assembly includes: an adjustment screw 6241, a threaded hole, and a lug 6243;

[0054] A threaded hole is formed on the second mounting plate 622, and an ear plate 6243 is fixed on the first mounting base 61. An adjusting screw 6241 passes through the ear plate 6243 and connects to the threaded hole. Loosening the connector 6231 of the connecting assembly allows the second elongated hole 6232 to ensure the position of the connector 6231 is adjustable. The distance between the second mounting plate 622 and the ear plate 6243 is adjusted by turning the adjusting screw 6241 of the adjusting assembly. The two sets of adjusting assemblies work together to achieve leveling of the second mounting plate 622. This also facilitates adjustment by turning the connector 6231 from above. In this embodiment, a locking nut is also provided for tightening.

[0055] Understandably, the positions can also be interchanged. For example, the second elongated hole 6232 is formed on the second diagonal brace 621, and the connector 6231 passes through the second elongated hole 6232 and connects to the first mounting base 61, so that the second diagonal brace 621 is pressed tightly against the first mounting base 61. The threaded hole is formed on the ear plate 6243, and the ear plate 6243 is fixed to the first mounting base 61. The adjusting screw 6241 passes through the second mounting plate 622 and connects to the threaded hole.

[0056] Specifically, the ear plate 6243 is fixed to the top of the first mounting plate 611 by welding, the two second diagonal braces 621 are located on the side of the first mounting plate 611 facing the rack, the second mounting plate 622 is connected to the top of the second diagonal braces 621 by screws, and the reducer 32 is located between the two second diagonal braces 621.

[0057] Preferably, each set of linear module 3 has a set of limit switches 71 on both sides of the second mounting base 62 along the moving direction of the sliding door 1, and the two ends of the rack are provided with limit plates 72. Limit signals are generated by the two sets of limit switches 71 touching the two limit plates 72 respectively.

[0058] Specifically, each set of limit switches 71 includes an upper limit switch and a lower limit switch. The end roller of the upper limit switch rolls along the side of the rack and pinion mounting bracket 34, and the lower limit switch cooperates with the limit plate 72. Each second diagonal brace 621 has a switch mounting base 711 mounted on the side away from the reducer 32 via a first connecting assembly 712. The switch mounting base 711 is made of angle steel, and the upper and lower limit switches are mounted on the upper and lower surfaces of the horizontal plane of the switch mounting base 711 via a second connecting assembly 713. The first connecting assembly 712 uses a screw and elongated hole structure, and the second connecting assembly 713 uses a double-ended stud, nut, and elongated hole structure, thereby realizing the position adjustment of the upper and lower limit switches in the vertical direction and perpendicular to the moving direction of the sliding door 1.

[0059] Preferably, the linear module 3 further includes a guide component 2 for guiding the movement of the sliding door 1. The guide component 2 supports and guides the sliding door 1, reduces friction and disperses torque, and ensures smooth movement of the sliding door 1.

[0060] Specifically, the guide assembly 2 includes a linear guide, specifically an SBR guide. The linear guide is fixed to the machine tool housing with screws, and the slider of the linear guide is fixedly connected to the sliding door 1 through a slider connecting seat 21. Each set of linear guides includes two sliders spaced apart along the length of the sliding door 1.

[0061] Preferably, the sliding door 1 is provided with a rigid limit seat 4, and after the two sliding doors 1 are closed, the two rigid limit seats 4 abut against each other. The cooperation between the rigid limit seat 4 and the limit switch 71 limits the position of the sliding door 1, thereby improving safety.

[0062] Preferably, the two sliding doors 1 are provided with safety contact edges 5 on opposite door edges. By applying the safety contact edges to the machine tool safety protection door, when personnel, objects or other external factors come into contact with the safety contact edges 5, the safety contact edges 5 made of rubber material deforms and converts the generated pressure signal into an electrical signal, which is sent to the control system to trigger the machine tool safety protection door to open automatically, thus preventing accidental injury.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A machine tool safety door, characterized in that, It includes two sliding doors (1) and two sets of linear modules (3). The two sets of linear modules (3) drive the sliding doors (1) to open and close. The linear module (3) includes a motor (31), a reducer (32) and a transmission assembly. The transmission assembly includes a first transmission component (331) and a second transmission component (332). The first transmission component (331) is mounted on the sliding door (1), and the second transmission component (332) is mounted on the machine tool housing. The motor (31) drives the first transmission component (331) to move in a straight line relative to the second transmission component (332) via the reducer (32), thereby causing the first transmission component (331) to move the sliding door (1).

2. A machine tool safety door according to claim 1, characterized in that, The transmission assembly adopts a gear and rack structure, wherein the first transmission component (331) is a gear and the second transmission component (332) is a rack.

3. A machine tool safety door according to claim 2, characterized in that, The motor (31) and reducer (32) are mounted on the mounting base component (6), which is fixed on the sliding door (1). The motor (31) drives the gear to rotate after being reduced in speed by the reducer (32).

4. A machine tool safety door according to claim 3, characterized in that, The mounting base component (6) includes a first mounting base (61) and a second mounting base (62); the first mounting base (61) is fixedly connected to the sliding door (1); the second mounting base (62) is fixedly connected to the first mounting base (61), the reducer (32) is disposed on the second mounting base (62), and the motor (31) is connected to the reducer (32).

5. A machine tool safety door according to claim 4, characterized in that, The second mounting base (62) includes a second diagonal brace (621), a second mounting plate (622), a second mounting component, and an adjusting component; the second mounting plate (622) is fixedly connected to the second diagonal brace (621), and the adjusting component is used to level the second mounting plate (622). After the second mounting plate (622) is leveled, the second diagonal brace (621) is detachably connected to the first mounting base (61) through the second mounting component.

6. A machine tool safety door according to claim 5, characterized in that, The second mounting component includes at least two sets of connecting assemblies, the connecting assemblies including a connector (6231) and a second elongated hole (6232); The second elongated hole (6232) is formed on the first mounting base (61). The connector (6231) passes through the second elongated hole (6232) and connects to the second diagonal brace (621), so that the second diagonal brace (621) presses against the first mounting base (61); or, The second elongated hole (6232) is opened on the second diagonal brace (621). The connector (6231) passes through the second elongated hole (6232) and connects to the first mounting base (61), so that the second diagonal brace (621) is pressed against the first mounting base (61). The adjusting component includes at least two sets of adjusting components, each of which includes: an adjusting screw (6241), a threaded hole, and an ear plate (6243); The threaded hole is formed on the second mounting plate (622), the ear plate (6243) is fixed on the first mounting base (61), and the adjusting screw (6241) passes through the ear plate (6243) and connects to the threaded hole; or, The threaded hole is formed on the ear plate (6243), which is fixed on the first mounting base (61). The adjusting screw (6241) passes through the second mounting plate (622) and is connected to the threaded hole.

7. A machine tool safety door according to claim 4, characterized in that, Each set of linear modules (3) has a set of limit switches (71) on both sides of the second mounting base (62) along the moving direction of the sliding door (1). The rack has limit plates (72) at both ends. Limit signals are generated by the two sets of limit switches (71) touching the two limit plates (72) respectively.

8. A machine tool safety door according to claim 1, characterized in that, The linear module (3) also includes a guide component (2) for guiding the movement of the sliding door (1).

9. A machine tool safety door according to claim 1, characterized in that, The sliding door (1) is provided with a hard limit seat (4), and after the two sliding doors (1) are closed, the two hard limit seats (4) abut against each other.

10. A machine tool safety door according to claim 1, characterized in that, The two sliding doors (1) are provided with safety contact edges (5) on opposite door edges.

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