Guard device for machining center

Abstract

The utility model relates to related technical fields in the field of mechanical engineering technology especially relates to a kind of protective device for machining center, including working housing, the outside surface of working housing is provided with synchronous uncovering mechanism, the side surface of synchronous uncovering mechanism is provided with safety self-locking mechanism.This kind of protective device for machining center, by the setting of synchronous uncovering mechanism, utilize the meshing transmission and symmetrical linkage structure of gear and toothed plate, so that two groups of protective front cover realize synchronous smooth opening and closing, simultaneously avoid the structural deformation caused by unilateral stress;By the setting of safety self-locking mechanism, with the mechanical locking of the carding male piece and female groove, the elastic reset of memory spring and the electrical interlock of circuit path, form double safety protection mechanism, can effectively prevent protective door accidental opening in the processing process, simultaneously realize the safety logic of "not closed not start" through circuit signal linkage, from mechanical and electrical level all-round guarantee operator safety and equipment normal operation.

Description

Technical Field

[0001] This utility model relates to the field of mechanical engineering technology, and in particular to a protective device for machining centers. Background Technology

[0002] In the field of mechanical engineering technology, machining centers, as a type of high-precision and high-efficiency automated machine tool, occupy a crucial position in the processing of parts in many industries such as aerospace, automobile manufacturing, and electronic equipment. During the operation of machining centers, there are often situations such as high-speed rotating tools, splashing chips, and possible leakage of cutting fluid. Therefore, a protective device for machining centers is particularly needed.

[0003] A search revealed Chinese patent CN221936116U, which was published and authorized on November 1, 2024. This patent describes a device that uses an electric telescopic mechanism, a movable adjusting block, a toothed block, a first mounting plate, and a positioning rod to prevent debris generated during processing from splashing outwards and causing injury to workers. However, existing protective devices for machining centers may have issues such as insufficient stability of the protective structure, easy jamming of the linkage mechanism, inconvenience in debris cleaning, and poor sealing performance during use. Summary of the Invention

[0004] The purpose of this utility model is to provide a protective device for machining centers to solve the problems of the existing protective device for machining centers mentioned in the background art. However, the existing protective device for machining centers may have problems such as insufficient stability of the protective structure, easy jamming of the linkage mechanism, inconvenience of debris cleaning and poor sealing performance during speed adjustment and use.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a protective device for a machining center, comprising a working shell, a tool changing drive module disposed on the inner wall surface of the working shell, a positioning and clamping module disposed on the inner wall of the working shell away from the tool changing drive module, a synchronous cover opening mechanism disposed on the outer surface of the working shell, and a safety self-locking mechanism disposed on one side surface of the synchronous cover opening mechanism.

[0006] The synchronous opening mechanism includes a synchronous slide groove, which is formed on one side surface of the working housing. A synchronous gear is rotatably connected to one side surface of the synchronous slide groove. A linkage gear plate is attached to the tooth surface of the synchronous gear. A limit strip is fixedly connected to one side surface of the linkage gear plate. A protective front cover is fixedly connected to the side surface of the linkage gear plate away from the limit strip. An opening slider is fixedly connected to the side surface of the protective front cover away from the linkage gear plate. An opening slide rail adapted to the opening slider is formed on one side surface of the working housing.

[0007] Preferably, the safety self-locking mechanism includes a self-locking housing, which is fixedly connected to the inner wall surface of the protective front cover. A reset base is rotatably connected to the inner wall surface of the self-locking housing. A memory spring is fixedly connected to one side surface of the reset base. A reset connecting rod is fixedly connected to the side surface of the memory spring away from the reset base. A reset disc is fixedly connected to one side surface of the reset connecting rod. A reset groove adapted to the reset disc is formed on one side surface of the self-locking housing. A locking male component is fixedly connected to one side surface of the self-locking housing. A locking female groove adapted to the locking male component is formed on one side surface of the self-locking housing. A passage plug and a passage hole are provided on one side surface of the self-locking housing. A release rod penetrating the self-locking housing is fixedly connected to one side of the reset disc.

[0008] Preferably, two sets of the linkage toothed plate and the limiting strip are symmetrically arranged around the rotation axis of the synchronous gear, and the linkage toothed plate and the limiting strip together with the synchronous gear form a synchronous limiting structure.

[0009] Preferably, two sets of the opening sliders are symmetrically arranged around the central axis of one side surface of the working shell. The opening sliders have a "T" shaped cross section in the vertical direction, and the protective front cover is slidably connected to one side surface of the opening slide rail through the opening sliders.

[0010] Preferably, the memory spring is rotatably connected to the inner wall surface of the self-locking housing via a reset base, and the memory spring and the reset link intersect perpendicularly in the vertical direction.

[0011] Preferably, one side surface of the self-locking housing is provided with a release groove adapted to the release rod, and the release groove ranges from 0 to 45 degrees.

[0012] Preferably, the safety self-locking mechanism has two sets symmetrically arranged around the central axis of one side surface of the working shell, and the protective front cover forms a sealed structure through the safety self-locking mechanism.

[0013] Compared with the prior art, the beneficial effects of this utility model are: this protective device for machining centers,

[0014] 1. By setting up a synchronous opening mechanism, the meshing transmission of gears and toothed plates and the symmetrical linkage structure enable the two sets of protective front covers to open and close synchronously and smoothly, solving the technical problems of easy jamming and asynchronous opening and closing of traditional protective doors with single-sided drive. This significantly improves the convenience and efficiency of operators loading and unloading workpieces, while avoiding structural deformation caused by unilateral force.

[0015] 2. By setting up a safety self-locking mechanism, a dual safety protection mechanism is formed by the mechanical locking of the male and female parts, the elastic reset of the memory spring, and the electrical interlocking of the circuit path. This solves the problems of the single locking structure and insufficient safety and reliability of existing protective devices. It can effectively prevent the protective door from being opened accidentally during processing. At the same time, the safety logic of "no start if not closed" is realized through circuit signal linkage, which comprehensively protects the safety of operators and the normal operation of equipment from both mechanical and electrical perspectives. Attached Figure Description

[0016] Figure 1 This is a side view of the appearance structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of this utility model when the lid is opened;

[0018] Figure 3 This is a schematic diagram of the cooperation structure between the cover-opening slider and the cover-opening slide rail of this utility model;

[0019] Figure 4 This is a cross-sectional view of the self-locking outer shell of this utility model;

[0020] Figure 5 This is a schematic diagram of the interlocking male component and the interlocking female groove of this utility model.

[0021] In the diagram: 1. Working housing; 2. Tool changer drive module; 3. Positioning and clamping module; 4. Synchronous cover opening mechanism; 5. Safety self-locking mechanism; 401. Synchronous slide groove; 402. Synchronous gear; 403. Linkage gear plate; 404. Limit bar; 405. Protective front cover; 406. Cover opening slider; 407. Cover opening slide rail; 501. Self-locking housing; 502. Reset base; 503. Memory spring; 504. Reset connecting rod; 505. Reset plate; 506. Reset groove; 507. Engaging male component; 508. Engaging female groove; 509. Access plug; 510. Access socket; 511. Release lever. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-5This utility model provides a technical solution: a protective device for a machining center, including a working shell 1, a tool changing drive module 2 is provided on the inner wall surface of the working shell 1, a positioning and clamping module 3 is provided on the inner wall of the working shell 1 away from the tool changing drive module 2, a synchronous opening mechanism 4 is provided on the outer surface of the working shell 1, and a safety self-locking mechanism 5 is provided on one side surface of the synchronous opening mechanism 4.

[0024] The synchronous opening mechanism 4 includes a synchronous slide groove 401, which is formed on one side surface of the working housing 1. A synchronous gear 402 is rotatably connected to one side surface of the synchronous slide groove 401. The tooth surface of the synchronous gear 402 is in contact with a linkage gear plate 403. A limit strip 404 is fixedly connected to one side surface of the linkage gear plate 403. A protective front cover 405 is fixedly connected to the side surface of the linkage gear plate 403 away from the limit strip 404. An opening slider 406 is fixedly connected to the side surface of the protective front cover 405 away from the linkage gear plate 403. One side surface of 1 is provided with an opening slide rail 407 that is adapted to the opening slider 406. With the setting of the synchronous opening mechanism 4, when in use, the protective front cover 405 is pushed, so that the opening slider 406 slides along the opening slide rail 407, which drives the linkage tooth plate 403 to move, thereby driving the synchronous gear 402 to rotate, which drives the other set of protective front covers 405 to slide in the opposite direction, realizing the opening and closing movement of the two sets of protective front covers 405. The synchronous opening and closing of the two sets of protective front covers 405 can be realized, which makes it convenient for operators to load and unload workpieces and improves the convenience and efficiency of operation.

[0025] Furthermore, the safety self-locking mechanism 5 includes a self-locking housing 501, which is fixedly connected to the inner wall surface of the protective front cover 405. A reset base 502 is rotatably connected to the inner wall surface of the self-locking housing 501. A memory spring 503 is fixedly connected to one side surface of the reset base 502. A reset connecting rod 504 is fixedly connected to the side surface of the memory spring 503 away from the reset base 502. A reset disk 505 is fixedly connected to one side surface of the reset connecting rod 504. A reset groove 506 adapted to the reset disk 505 is opened on one side surface of the self-locking housing 501. A locking male component 507 is fixedly connected to one side surface of the self-locking housing 501. A locking female groove 508 adapted to the locking male component 507 is opened on one side surface of the self-locking housing 501. Equipped with a access plug 509 and an access socket 510, a release lever 511 is fixedly connected to one side of the reset plate 505, penetrating the self-locking housing 501. Through the safety self-locking mechanism 5, during use, after the protective front cover 405 is closed, the engaging male part 507 is inserted into the engaging female groove 508, pressing the reset plate 505 to rotate and stretching the memory spring 503. After the engagement is complete, the memory spring 503 resets, causing the reset plate 505 to rotate counterclockwise, achieving synchronous locking. Moving the release lever 511 allows the reset plate 505 to disengage from the reset groove 506, releasing the lock. This ensures that the protective front cover 405 will not be accidentally opened after closing, providing safety during processing. The protective front cover 405 can only be opened after correct unlocking, effectively preventing operators from accidentally contacting dangerous areas.

[0026] Furthermore, two sets of linkage toothed plates 403 and limiting strips 404 are symmetrically arranged around the rotation axis of the synchronous gear 402. The linkage toothed plates 403 and limiting strips 404 together with the synchronous gear 402 form a synchronous limiting structure. Through the setting of linkage toothed plates 403 and limiting strips 404, during use, the two sets of linkage toothed plates 403 can move synchronously under the drive of the synchronous gear 402. The limiting strips 404 cooperate with the synchronous slide groove 401 to limit the range of movement, ensuring that the protective front cover 405 opens and closes smoothly and does not exceed the travel limit.

[0027] Furthermore, two sets of cover-opening sliders 406 are symmetrically arranged along the central axis of one side surface of the working housing 1. The cover-opening sliders 406 have a "T"-shaped cross section in the vertical direction, and the protective front cover 405 is slidably connected to one side surface of the cover-opening slide rail 407 through the cover-opening sliders 406. With the arrangement of the cover-opening sliders 406, the protective front cover 405 can slide precisely along the cover-opening slide rail 407 during use. The T-shaped structure prevents it from falling off the slide rail, and the symmetrical arrangement on both sides ensures the stability during sliding.

[0028] Furthermore, the memory spring 503 is rotatably connected to the inner wall surface of the self-locking housing 501 via the reset base 502. The memory spring 503 and the reset linkage 504 are perpendicularly intersecting in the vertical direction. With the setting of the memory spring 503, the memory spring 503 can be effectively stretched and reset when the reset plate 505 rotates during use. The perpendicularly intersecting structure ensures stable force transmission and ensures reliable locking and unlocking actions of the safety self-locking mechanism 5.

[0029] Furthermore, a release groove adapted to the release lever 511 is provided on one side surface of the self-locking housing 501, and the release groove ranges from 0 to 45 degrees. By providing the release groove, during use, the operator can precisely control the reset plate 505 to disengage from the reset groove 506 by rotating the release lever 511 at a specific angle, thus limiting the release range and avoiding misoperation.

[0030] Furthermore, there are two sets of safety self-locking mechanisms 5 symmetrically arranged around the central axis of one side surface of the working housing 1, and the protective front cover 405 forms a sealed structure through the safety self-locking mechanism 5. With the setting of the safety self-locking mechanism 5, during use, the protective front cover 405 and the working housing 1 can form a sealed space through the synchronous locking of the two sides of the safety self-locking mechanism 5. Combined with the circuit connection between the access plug 509 and the access socket 510, mechanical and electrical dual safety protection is achieved.

[0031] Working principle: When the device is started, the machining center is in the open state. In the synchronous opening mechanism 4, pushing one set of protective front covers 405 will cause the opening slider 406, which is fixedly connected to one side surface of the protective front cover 405, to slide steadily along the opening slide rail 407 on one side surface of the working shell 1. This will cause the linkage tooth plate 403 to drive the synchronous gear 402 meshing with its tooth surface to rotate, thereby driving the other set of protective front covers 405 to slide, realizing the relative movement of the two sets of protective front covers 405 away from or towards each other. When the two sets of protective front covers 405 are closed, the locking male part 507 of the safety self-locking mechanism 5 is inserted into the locking female groove 508, and the locking male part 507... The semi-circular reset disc 505 rotates clockwise along the inner wall surface of the reset groove 506, thereby driving the reset connecting rod 504 to rotate around the reset base 502. This stretches the memory spring 503. When the engaging male part 507 fully enters the engaging female part 508 and is in contact with its inner wall surface, the memory spring 503 releases its elastic potential energy, pulling the reset disc 505 counterclockwise along the inner wall surface of the reset groove 506 to reset, achieving synchronous locking of the two sets of safety self-locking mechanisms 5. At the same time, the access plug 509 and access socket 510 located on the surfaces of the two sets of self-locking housings 501 that are close to each other are in contact with each other, and the circuit is connected. Only when the protective front cover 405 is completely closed... When the self-locking mechanism 5 is successfully locked, the circuit signal will trigger the control system of the machining center, allowing the tool change drive module 2 and the positioning clamping module 3 to start working. At this time, the protective front cover 405 forms a sealed protective structure to prevent chips and coolant from splashing or operators from accidentally contacting dangerous areas during machining. During machining, the meshing state of the synchronous gear 402 and the linkage gear plate 403, as well as the engagement state of the reset plate 505 and the reset groove 506, together ensure that the protective front cover 405 cannot be easily opened. If it is necessary to stop the machine for maintenance or change the workpiece, the operator needs to manually move the release lever 511 to rotate it 45 degrees along the release slide groove opened in the self-locking housing 501, thereby driving the machine to stop. The reset plate 505 disengages from the reset slot 506, and the memory spring 503 is stretched again. The engaging male part 507 exits from the engaging female part 508. At this time, the access plug 509 separates from the access socket 510, the circuit is disconnected, the machining center automatically stops, and the operator can then push the protective front cover 405 to open. Throughout the process, the T-shaped structure of the opening slider 406 and the opening slide rail 407 ensures that the protective front cover 405 slides smoothly. The sliding range of the limit strip 404 in the synchronous slide groove 401 limits the movement of the linkage tooth plate 403 to prevent excessive movement. The coordinated operation of multiple structures realizes the safe and stable operation of the protective device, thus completing the use process of a protective device for a machining center.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A protective device for a machining center, comprising a working housing (1), wherein a tool changer drive module (2) is disposed on the inner wall surface of the working housing (1), and a positioning and clamping module (3) is disposed on the inner wall of the working housing (1) away from the tool changer drive module (2), characterized in that: The outer surface of the working housing (1) is provided with a synchronous opening mechanism (4), and one side surface of the synchronous opening mechanism (4) is provided with a safety self-locking mechanism (5). The synchronous opening mechanism (4) includes a synchronous slide groove (401), which is opened on one side surface of the working housing (1). A synchronous gear (402) is rotatably connected to one side surface of the synchronous slide groove (401). A linkage gear plate (403) is attached to the tooth surface of the synchronous gear (402). A limit strip (404) is fixedly connected to one side surface of the linkage gear plate (403). A protective front cover (405) is fixedly connected to the side surface of the linkage gear plate (403) away from the limit strip (404). An opening slider (406) is fixedly connected to the side surface of the protective front cover (405) away from the linkage gear plate (403). An opening slide rail (407) adapted to the opening slider (406) is opened on one side surface of the working housing (1).

2. The protective device for a machining center according to claim 1, characterized in that: The safety self-locking mechanism (5) includes a self-locking housing (501), which is fixedly connected to the inner wall surface of the protective front cover (405). A reset base (502) is rotatably connected to the inner wall surface of the self-locking housing (501). A memory spring (503) is fixedly connected to one side surface of the reset base (502). A reset connecting rod (504) is fixedly connected to the side surface of the memory spring (503) away from the reset base (502). A reset disc (505) is fixedly connected to one side surface of the reset connecting rod (504). The self-locking housing (501) has a reset groove (506) adapted to the reset plate (505) on one side surface. A locking male part (507) is fixedly connected to one side surface of the self-locking housing (501). A locking female part (508) adapted to the locking male part (507) is provided on one side surface of the self-locking housing (501). A passage plug (509) and a passage socket (510) are provided on one side surface of the self-locking housing (501). A release rod (511) penetrating the self-locking housing (501) is fixedly connected to one side of the reset plate (505).

3. A protective device for a machining center according to claim 1, characterized in that: The linkage toothed plate (403) and the limiting strip (404) are arranged symmetrically in two sets around the rotation axis of the synchronous gear (402). The linkage toothed plate (403) and the limiting strip (404) together with the synchronous gear (402) form a synchronous limiting structure.

4. A protective device for a machining center according to claim 1, characterized in that: Two sets of opening sliders (406) are symmetrically arranged on one side surface of the working shell (1). The opening sliders (406) have a "T" shaped cross section in the vertical direction, and the protective front cover (405) is slidably connected to one side surface of the opening slide rail (407) through the opening sliders (406).

5. A protective device for a machining center according to claim 2, characterized in that: The memory spring (503) is rotatably connected to the inner wall surface of the self-locking housing (501) through the reset base (502), and the memory spring (503) and the reset link (504) are perpendicularly intersecting each other in the vertical direction.

6. A protective device for a machining center according to claim 2, characterized in that: The self-locking housing (501) has a release groove on one side surface that is compatible with the release rod (511), and the release groove ranges from 0 to 45 degrees.

7. A protective device for a machining center according to claim 2, characterized in that: The safety self-locking mechanism (5) has two sets symmetrically arranged around the central axis of one side surface of the working shell (1), and the protective front cover (405) forms a sealed structure through the safety self-locking mechanism (5).

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