Folding machine tool protective door

Abstract

The invention belongs to the field of machining equipment, and provides a folding type machine tool protective door which comprises a machine tool protective cover body, a first-stage door plate, a second-stage door plate, a moving device, a safety limiting device and a locking device, the first-stage door plate is connected with the machine tool protective cover through hinges, the second-stage door plate is connected with the first-stage door plate through hinges, and the second-stage door plate is connected with the second-stage door plate through hinges. And a door handle, a moving device, a safety limiting device and a locking device are mounted on the secondary door plate. According to the folding type machine tool protection door, the occupied area of machine tool protection and the occupied foundation depth are effectively reduced, the protection structure is compact, the number of types of performance parts is small, the number of manufacturing and mounting procedures is small, and the quality is controllable.

Description

Technical Field

[0001] The invention belongs to the field of mechanical processing equipment, and in particular relates to a foldable machine tool protective door. Background Art

[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] The existing machine tool protective doors are of two types: vertical lift doors and left-right sliding doors. When the vertical lift door is opened, the door panel needs to move downward, which requires a high depth of the machine tool foundation. When the left-right sliding door is opened, the door panel needs to move left and right. The door panel has a large movement stroke, which requires the machine tool body and protective structure to have a large left-right length, resulting in the machine tool occupying a large floor space. Both protective door structures have certain disadvantages and limitations in the application of machine tools with a small footprint and shallow foundation. Summary of the invention

[0004] The purpose of the present invention is to solve the deficiencies in the above-mentioned prior art and to provide a foldable machine tool protection door that can reduce the floor space and foundation depth occupied by machine tool protection, has a compact protection structure, requires fewer manufacturing and installation processes, and has controllable quality.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows.

[0006] The present invention provides a foldable machine tool protective door, comprising a machine tool protective cover body, a primary door panel, a secondary door panel, a moving device, a safety limit device and a locking device, wherein the primary door panel is connected to the machine tool protective cover through a hinge, the secondary door panel is connected to the primary door panel through a hinge, and a door handle, a moving device, a safety limit device and a locking device are installed on the secondary door panel.

[0007] In the above technical solution, the first-level door panel includes a left first-level door panel and a right first-level door panel, the second-level door panel includes a left second-level door panel and a right second-level door panel, the machine tool protective cover body includes a left protective enclosure, a right protective enclosure and a protective chassis, the machine tool protective cover body is connected to the machine tool body, and the left protective enclosure and the right protective enclosure are located above the protective chassis; a left inner hinge is provided on the inner side of the left protective enclosure, and the left first-level door panel is connected to the left protective enclosure through the left inner hinge, so that the left first-level door panel can rotate relative to the machine tool protective cover body. A left outer hinge is provided on the outer side of the left first-level door panel, and the left second-level door panel is connected to the left first-level door panel through the left outer hinge, so that the left second-level door panel can rotate relative to the left first-level door panel. A right inner hinge is provided on the inner side of the right protective enclosure, and the right first-level door panel is connected to the right protective enclosure through the right inner hinge, so that the right first-level door panel can rotate relative to the machine tool protective cover body. A right outer hinge is arranged on the outer side of the right primary door panel, and the right secondary door panel is connected to the right primary door panel through the right outer hinge, so that the right secondary door panel can rotate relative to the right primary door panel. The outer sides of the left secondary door panel and the right secondary door panel are respectively provided with door handles, movement devices, safety limit devices and locking devices.

[0008] In the above technical solution, the motion device includes a rotating device and a linear motion device, and the rotating device is composed of a sleeve assembly, a rotating shaft, a slider mounting plate, an upper rolling bearing, a lower rolling bearing, a top cover and screw fasteners. The sleeve assembly is connected to the outer side of the left secondary door panel or the right secondary door panel, the rotating shaft is arranged in the inner cavity of the sleeve assembly, the slider mounting plate is connected to the lower end of the rotating shaft, the upper rolling bearing and the lower rolling bearing are respectively positioned at the upper and lower parts of the rotating shaft through the upper and lower step surfaces of the sleeve assembly, the lower rolling bearing is located above the slider mounting plate, and the top cover is arranged in the inner cavity of the sleeve assembly. Above the upper rolling bearing, it is connected to the upper rolling bearing by screw fasteners. The linear motion device consists of an upper guide rail, a lower guide rail, an upper slider and a lower slider. The upper guide rail is fixed to the outside of the protective chassis and is located below the left-side primary door panel or the right-side primary door panel. The lower guide rail is fixed to the outside of the protective chassis and is located directly below the upper guide rail. The upper slider is arranged between the slider mounting plate and the upper guide rail and is fixedly connected to the slider mounting plate. The upper slider and the upper guide rail form a linear guide pair. The lower slider is arranged between the slider mounting plate and the lower guide rail, is fixedly connected to the slider mounting plate, is located directly below the upper slider, and forms a linear guide pair with the lower guide rail.

[0009] In the above technical solution, the safety limit device includes a plug mounting plate, a safety switch plug and a safety switch body. The plug mounting plate is arranged on the outside of the slider mounting plate, the safety switch plug is fixed on the plug mounting plate, and the safety switch body is arranged on the outside of the protective chassis, and the height is suitable for the safety switch plug.

[0010] In the above technical solution, the locking device is composed of a latch seat, a latch and a spring. The latch seat is fixed to the outer side of the left secondary door panel or the right secondary door panel. The upper and lower plates of the latch seat are provided with concentric circular holes. The upper and lower plug plates are provided on the side of the latch seat. The round rod of the latch passes through the circular holes of the upper and lower plates of the latch seat and can rotate freely in the circular holes. The latch is fixed with a side plate, which can be inserted into the upper plug plate or the lower plug plate of the latch seat. The spring passes through the latch. When closing the door, the latch is The side plate of the pin is pushed away from the upper plug plate of the latch seat, and the spring is freely compressed when the latch moves downward. When the round rod of the latch is inserted into the locking limit hole of the protective chassis, the side plate of the latch is inserted into the lower plug plate position of the latch seat to achieve door closing and locking. When opening the door, the side plate of the latch is pushed away from the lower plug plate of the latch seat, and the latch moves upward while the spring rebounds freely. The round rod of the latch leaves the locking limit hole position of the protective chassis, unlocks the limit, and inserts the side plate of the latch into the upper plug plate position of the latch seat.

[0011] The foldable machine tool protection door of the present invention effectively reduces the floor space and foundation depth of the machine tool protection, has a compact protection structure, a small number of performance parts, a small number of manufacturing and installation processes, and controllable quality. In addition, since the door panel is folded and moved toward the working area when it is opened, it effectively prevents iron filings and cutting fluid from being taken out of the processing area with the door when the door panel is open, thereby causing pollution to the surrounding environment of the machine tool. Similar structures can be applied to the design of other types of machine tool protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic structural diagram of the foldable machine tool protective door of the present invention.

[0013] Figure 2 for Figure 1 Cross-section at AA.

[0014] Figure 3 for Figure 1 A partial enlarged view of point Ⅰ in the middle.

[0015] Among them: 1-left protective enclosure, 2-right protective enclosure, 3-protective chassis, 4-left inner hinge, 5-left primary door panel, 6-left outer hinge, 7-left secondary door panel, 8-right inner hinge, 9-right primary door panel, 10-right outer hinge, 11-right secondary door panel, 12-door handle, 13-sleeve assembly, 14-rotating shaft, 15-slider mounting plate, 16-upper rolling bearing, 17-lower rolling bearing, 18-top cover, 19-screw fasteners, 20-upper guide rail, 21-lower guide rail, 22-upper slider, 23-lower slider, 24-insert mounting plate, 25-safety switch insert, 26-safety switch body, 27-pin seat, 28-pin, 29-spring. DETAILED DESCRIPTION

[0016] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. The accompanying drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and thus only show the components related to the present invention.

[0017] like Figures 1 to 3 As shown, an embodiment of the present invention provides a foldable machine tool protective door, including a machine tool protective cover body, a primary door panel, a secondary door panel, a movement device, a safety limit device and a locking device, wherein the primary door panel is connected to the machine tool protective cover through a hinge, and the secondary door panel is connected to the primary door panel through a hinge, and a door handle, a movement device, a safety limit device and a locking device are installed on the secondary door panel.

[0018] When closing the door (taking the left door as an example), hold the door handle 12 on the outside of the left secondary door panel 7 and pull it inward, driving the left secondary door panel 7 to rotate inward with the left outer hinge 6 pin as the rotation axis. At the same time, the opening and closing movement of the child and parent leaves of the left outer hinge 6 drives the left primary door panel 5 to rotate outward, so that the left primary door panel 5 and the left secondary door panel 7 produce a folding rotation movement relative to the left protective enclosure 1. The rotating device and the linear motion device on the outside of the left secondary door panel 7 make the left secondary door panel 7 move rightward along the upper guide rail 20 and the lower guide rail 21 while rotating, thereby completing the folding compound movement. This compound action is transmitted to the left primary door panel 5 through the opening and closing of the door hinge, so as to realize the closing of the two-stage door panels. When the two-stage door panels are rotated to the horizontal state, that is, the closed state, the safety switch plug 25 is inserted into the safety switch body 26, and the normally closed contact of the safety switch body 26 is closed, driving the control system of the safety switch body 26 to be powered on, and the door is closed and locked by electromagnetic induction. Then hold the handle of the latch 28 and move it downward to insert the handle into the lower plug plate of the latch seat 27. At this time, the round rod of the latch 28 is inserted into the locking limit hole of the protective chassis 3 to achieve mechanical locking of the door panel in the closed position, ensuring that the door and the machine tool protective cover body are relatively still to avoid the door opening due to misoperation.

[0019] When opening the door (taking the left door panel as an example), remove the latch 28 from the lower plug plate of the latch seat 27, hold the handle of the latch 28 and move it upward, insert the handle into the upper plug plate of the latch seat 27, at this time, the round rod of the latch 28 is away from the locking limit hole of the protective chassis 3, release the mechanical lock of the door position, and then insert the side plate of the latch 28 into the upper plug plate position of the latch seat 27. Hold the door handle 12 on the outside of the left secondary door panel 7 and pull it outward, the safety switch insert 25 is pulled out of the safety switch body 26, the normally closed contact in the safety switch body 26 is disconnected by the mechanical rebound device, and its control system stops working, and the door can rotate relative to the machine tool protective cover body. At the same time, the door handle 12 on the outside of the left secondary door panel 7 is pulled outward to drive the left secondary door panel 7 to rotate outward with the left outer hinge 6 pin as the rotation axis to open, and at the same time, the opening and closing movement of the child and parent leaves of the outer hinge 6 drives the left primary door panel 5 to rotate inward, so that the left primary door panel 5 and the left secondary door panel 7 produce a folding rotational movement relative to the left protective enclosure 1. The rotating device and the linear motion device on the outside of the left secondary door panel 7 make the left secondary door panel 7 move to the left along the upper guide rail 20 and the lower guide rail 21 while rotating, thereby completing the folding compound movement. This compound action is transmitted to the left primary door panel 5 through the opening and closing of the door hinge, so that the two-stage door panel is opened.

[0020] The opening and closing method of the right door panel is the same as that of the left door panel.

[0021] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0022] The above description is based on the ideal embodiment of the present invention. Through the above description, relevant personnel can make various changes and modifications without departing from the technical concept of the present invention. The technical scope of the present invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A foldable machine tool protective door, characterized in that: It includes a machine tool protective cover body, a primary door panel, a secondary door panel, a motion device, a safety limit device and a locking device. The primary door panel is connected to the machine tool protective cover through a hinge, and the secondary door panel is connected to the primary door panel through a hinge. A door handle, a motion device, a safety limit device and a locking device are installed on the secondary door panel.

2. The foldable machine tool protective door according to claim 1, characterized in that: The first-level door panel includes a left-side first-level door panel and a right-side first-level door panel, the second-level door panel includes a left-side second-level door panel and a right-side second-level door panel, the machine tool protective cover body includes a left-side protective enclosure panel, a right-side protective enclosure panel and a protective chassis, the machine tool protective cover body is connected to the machine tool body, and the left-side protective enclosure panel and the right-side protective enclosure panel are located above the protective chassis; a left inner hinge is provided on the inner side of the left protective enclosure panel, the left-side first-level door panel is connected to the left-side protective enclosure panel through the left inner hinge, a left outer hinge is provided on the outer side of the left-side first-level door panel, the left-side second-level door panel is connected to the left-side first-level door panel through the left outer hinge, a right inner hinge is provided on the inner side of the right-side protective enclosure panel, the right-side first-level door panel is connected to the right-side protective enclosure panel through the right inner hinge, a right outer hinge is provided on the outer side of the right-side first-level door panel, and the right-side second-level door panel is connected to the right-side first-level door panel through the right outer hinge, and door handles, movement devices, safety limit devices and locking devices are provided on the outer sides of the left second-level door panel and the right second-level door panel, respectively.

3. The foldable machine tool protective door according to claim 1, characterized in that: The motion device includes a rotating device and a linear motion device, and the rotating device is composed of a sleeve assembly, a rotating shaft, a slider mounting plate, an upper rolling bearing, a lower rolling bearing, a top cover and screw fasteners. The sleeve assembly is connected to the outer side of the left secondary door panel or the right secondary door panel, the rotating shaft is arranged in the inner cavity of the sleeve assembly, the slider mounting plate is connected to the lower end of the rotating shaft, the upper rolling bearing and the lower rolling bearing are respectively positioned at the upper and lower parts of the rotating shaft through the upper and lower step surfaces of the sleeve assembly, the lower rolling bearing is located above the slider mounting plate, the top cover is arranged in the inner cavity of the sleeve assembly, and is located on the upper rolling shaft The upper part of the bearing is connected to the upper rolling bearing by screw fasteners. The linear motion device consists of an upper guide rail, a lower guide rail, an upper slider and a lower slider. The upper guide rail is fixed to the outside of the protective chassis and is located below the left-side primary door panel or the right-side primary door panel. The lower guide rail is fixed to the outside of the protective chassis and is located directly below the upper guide rail. The upper slider is arranged between the slider mounting plate and the upper guide rail and is fixedly connected to the slider mounting plate. The upper slider and the upper guide rail form a linear guide pair. The lower slider is arranged between the slider mounting plate and the lower guide rail, is fixedly connected to the slider mounting plate, is located directly below the upper slider, and forms a linear guide pair with the lower guide rail.

4. The foldable machine tool protective door according to claim 1, characterized in that: The safety limit device includes a plug-in mounting plate, a safety switch plug-in and a safety switch body. The plug-in mounting plate is arranged on the outside of the slider mounting plate, the safety switch plug-in is fixed on the plug-in mounting plate, and the safety switch body is arranged on the outside of the protective chassis, and its height is suitable for the safety switch plug-in.

5. The foldable machine tool protective door according to claim 1, characterized in that: The locking device is composed of a latch seat, a latch and a spring. The latch seat is fixed to the outer side of the left secondary door panel or the right secondary door panel. The upper and lower plates of the latch seat are provided with concentric circular holes. The upper and lower plug plates are provided on the side of the latch seat. The round rod of the latch passes through the circular holes of the upper and lower plates of the latch seat and can rotate freely in the circular holes. The latch is fixed with a side plate, which can be inserted into the upper plug plate or the lower plug plate of the latch seat. The spring passes through the latch. When closing the door, the side plate of the latch is pushed out of the way. When the door is opened, the side plate of the bolt is pushed away from the lower plug plate of the bolt seat. When the spring rebounds freely, the bolt moves upward, and the round rod of the bolt leaves the locking limit hole position of the protective chassis, unlocking the limit, and inserting the side plate of the bolt into the upper plug plate position of the bolt seat.

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