Light curtain support

Abstract

The utility model provides a light curtain support, relates to the technical field of light curtains of bending machines, and aims to solve the problem of low adjusting precision caused by the fact that a mounting support needs to be lifted to move when the height of the mounting support is adjusted by the light curtain support in the prior art, The light curtain support comprises a fixed seat, a vertical support and a positioning block, the fixing base is slidably connected with the vertical support, the positioning block is slidably connected to the vertical support on the upper side of the fixing base and can be locked on the vertical support through a first locking mechanism, and the light curtain device is installed on the vertical support. According to the light curtain support, the positioning block is arranged so that the moving distance of the vertical support can be calibrated on the vertical support, adjustment and positioning can be more accurate, after the positioning block is locked on the vertical support, the position of the vertical support can be adjusted under the action of gravity, and the positioning accuracy is improved. Therefore, the situation that the vertical support is locked after being accurately adjusted in position while being lifted is avoided, and more labor is saved in the adjusting process.

Description

TECHNICAL FIELD

[0001] The utility model relates to a bending machine light curtain technical field especially is related to a light curtain support. BACKGROUND

[0002] The safety light curtain is a kind of photoelectric safety protection device, which is composed of a light projector and a light receiver, the light projector emits modulated infrared light, which is received by the light receiver, forming a protection net, when an object enters the protection net, the light is blocked by the object, and through the internal control circuit, the light receiver circuit reacts immediately, that is, a signal is output in the output part for the emergency brake of machine tool such as punch and press machine.The safety light curtain is commonly used in some mechanical equipment with potential danger, such as stamping machine, shearing equipment, metal cutting equipment and mechanical conveying equipment, which need to be worked with machine, and the setting of safety light curtain can reduce the risk of personal injury of workers.

[0003] Bending machine is used in sheet metal processing, and bending machine is a kind of mechanical equipment with great potential danger, in order to protect the personal safety of operators, safety light curtain needs to be configured.The light curtain of bending machine needs to be installed by special support, which is used to install and adjust the installation position of light curtain.When the bending machine needs to replace different dies, the installation position of safety light curtain needs to be adjusted.The existing light curtain support, such as the fixed plate disclosed in the patent application file with application number 201821321792.2, is installed on the front surface of the vertical plate, one side of the fixed plate is provided with a clamping plate, the clamping plate is detachably connected with the fixed plate through a screw rod, the inside of the clamping plate is provided with a mounting bracket, the mounting bracket is slidably connected with the clamping plate through a sliding rail, and the emitter is connected to the bottom of the mounting bracket.This kind of light curtain support needs to be held up when adjusting the height of the mounting bracket, and then the mounting bracket is moved to the specified position relative to the clamping plate and locked, which is inconvenient to adjust the height of the mounting bracket, affects the adjustment efficiency and accuracy. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of light curtain support, to solve the problem of low adjustment accuracy in prior art when adjusting the height of mounting bracket of light curtain support, the light curtain support of the utility model can avoid adjusting the position of vertical support after being held up and then locking, make the adjustment process more labor-saving, and the adjustment positioning is more accurate.

[0005] The utility model provides a kind of light curtain support, including fixed seat, vertical support and locating block, the fixed seat with the vertical support can be slidably connected, the locating block can be slidably connected on the vertical support of the fixed seat upper side and can be locked on the vertical support by first locking mechanism, and light curtain device is installed on the vertical support.

[0006] As one preferred scheme of the utility model, the vertical support is provided with a linear guide rail arranged vertically, the fixed seat is provided with a first sliding block matched with the linear guide rail at one end close to the vertical support, and the fixed seat is arranged on the linear guide rail through the first sliding block.

[0007] As one preferred scheme of the utility model, the first locking mechanism comprises a shifting handle, a screw rod, a limiting block and a fixed plate, the fixed plate is arranged outside the vertical support and connected with the positioning block, a vertical connecting groove is arranged on the vertical support, one end of the screw rod is connected with the shifting handle, the other end of the screw rod penetrates through the fixed plate and extends into the connecting groove, and the limiting block is arranged in the connecting groove and connected with the screw rod.

[0008] As one preferred scheme of the utility model, the fixed seat comprises a first connecting plate and a second connecting plate, the first connecting plate and the second connecting plate are arranged in parallel, two supporting plates are arranged between the first connecting plate and the second connecting plate, and the two supporting plates are arranged on both sides of the first connecting plate and the second connecting plate and perpendicular to the plate surfaces of the first connecting plate and the second connecting plate.

[0009] As one preferred scheme of the utility model, the second connecting plate is connected with a sliding block fixed plate, the first sliding block is connected to one side of the sliding block fixed plate away from the second connecting plate, a second locking mechanism is connected to the lower side of the sliding block fixed plate through a pin shaft, the second locking mechanism is located on the lower side of the first locking mechanism and can be locked in the connecting groove of the vertical support.

[0010] As one preferred scheme of the utility model, a hinged block is arranged at the top end of the sliding block fixed plate, a hinged seat is arranged at the top end of the second connecting plate, the hinged seat is connected with the hinged block through a hinge shaft, and the bottom end of the second connecting plate is connected with the sliding block fixed plate through a bolt.

[0011] As one preferred scheme of the utility model, an indicating plate is arranged on the sliding block fixed plate, a scale is arranged on the vertical support, and the indicating head of the indicating plate is arranged towards the scale.

[0012] As one preferred scheme of the utility model, a buffer connecting frame is connected to the bottom end of the vertical support, and the light curtain device is installed on the bottom side of the buffer connecting frame.

[0013] As a preferred scheme of the utility model, an upper cover plate is arranged at the top end of the vertical support, and a bump block is arranged at the top end of the linear guide rail, and the bump block abuts against the upper cover plate.

[0014] As a preferred scheme of the utility model, a handle is arranged on the vertical support.

[0015] Compared with the prior art, the utility model has the following positive effects:

[0016] The light curtain support provided by the utility model comprises a fixing base, a vertical support and a positioning block, the fixing base is slidably connected with the vertical support, the positioning block is slidably connected to the vertical support on the upper side of the fixing base and can be locked to the vertical support through a first locking mechanism, and a light curtain device is installed on the vertical support. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical schemes in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced.

[0018] Figure 1 It is a structure schematic view of the first visual angle of the light curtain support of the utility model;

[0019] Figure 2 It is a structure schematic view of the second visual angle of the light curtain support of the utility model;

[0020] Figure 3 It is a front view of the light curtain support of the utility model;

[0021] Figure 4 For Figure 3 Cross-sectional view of A-A in the middle.

[0022] In the figure: 1, vertical support; 11, connecting groove; 12, linear guide rail; 13, anti-collision block; 14, upper cover plate; 2, fixed seat; 21, first connecting plate; 22, second connecting plate; 221, hinged seat; 23, support plate; 24, sliding block fixing plate; 241, hinged block; 25, first sliding block; 26, hinged shaft; 27, bolt;

[0023] 3, positioning block; 31, second sliding block; 4, first locking mechanism; 41, fixed plate; 42, indexing handle; 43, screw rod; 44, limiting block; 5, second locking mechanism; 51, pin shaft; 6, buffer connecting frame; 61, bottom plate; 62, buffer connecting plate; 7, handle; 8, scale; 9, indicating plate. DETAILED DESCRIPTION

[0024] In the description of the present application, it should be pointed out that, unless otherwise stated, the meaning of "multiple" is two or more; the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present application, it should be pointed out that, unless otherwise stated and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

[0027] Example 1:

[0028] The light curtain support provided in this embodiment, like Figures 1-4As shown, it comprises a fixed seat 2, a vertical support 1 and a positioning block 3, the fixed seat 2 is slidably connected with the vertical support 1, the positioning block 3 is slidably connected on the vertical support 1 on the upper side of the fixed seat 2 and can be locked on the vertical support 1 through a first locking mechanism 4, and the light curtain device is installed on the vertical support 1.

[0029] When the light curtain support of the embodiment is used by being installed on a bending machine, the fixed seat 2 is installed on the frame of the bending machine, when the installation height of the light curtain device needs to be adjusted, the positioning block 3 is first slid on the vertical support 1 to a specific position, and then is locked on the vertical support 1 through the first locking mechanism 4, the vertical support 1 can be lowered relative to the fixed seat 2 under the action of gravity until the fixed seat 2 abuts against the positioning block 3, thereby limiting the vertical support 1 from continuing to move through the positioning block 3, so as to adjust the up-and-down movement of the vertical support 1, and since the light curtain device is installed on the vertical support 1, the installation position of the light curtain device relative to the bending machine is adjusted.

[0030] The light curtain support in the embodiment can first demarcate the distance that the vertical support 1 needs to move on the vertical support 1 through the positioning block 3, so that the adjustment and positioning are more accurate, and after the positioning block 3 is locked on the vertical support 1, the vertical support 1 can adjust the position under the action of gravity, thereby avoiding the need to lock after the vertical support 1 is lifted and the position thereof is accurately adjusted at the same time, so that the adjustment process is more labor-saving.

[0031] As a preferred embodiment, as shown in the drawings, Figure 1 A linear guide rail 12 is arranged on the vertical support 1 in the vertical direction. The fixed seat 2 is provided with a first sliding block 25 matched with the linear guide rail 12 at one end close to the vertical support 1, and the fixed seat 2 is slidably arranged on the linear guide rail 12 through the first sliding block 25. The positioning block 3 is provided with a second sliding block 31, and the positioning block 3 is slidably arranged on the linear guide rail 12 through the second sliding block 31. The positioning block 3 and the second sliding block 31 are in an integrated structure. The second sliding block 31 is arranged on the upper side of the first sliding block 25, so that the second sliding block 31 can limit the upward movement of the first sliding block 25 along the linear guide rail 12 when being locked.

[0032] The fixed seat 2 and the positioning block 3 in the embodiment are slidably arranged on the linear guide rail 12 of the vertical support 1 through the sliding blocks, so that the relative displacement between the fixed seat 2, the positioning block 3 and the vertical support 1 is more accurate and easy to adjust.

[0033] As a preferred embodiment, as shown in the drawings, Figure 1 and Figure 4As shown, the first locking mechanism 4 comprises a shift handle 42, a screw rod 43, a limiting block 44 and a fixed plate 41, the fixed plate 41 is arranged outside the vertical support 1 and connected with the positioning block 3. A vertical connecting groove 11 is arranged on the vertical support 1, and an opening is arranged on the connecting groove 11 along the vertical direction of the vertical support 1. One end of the screw rod 43 is connected with the shift handle 42, and the other end extends into the connecting groove 11 through the fixed plate 41, and the limiting block 44 is arranged in the connecting groove 11 and connected with the screw rod 43. Specifically, the screw rod 43 is threadedly connected with the fixed plate 41, and the limiting block 44 is fixedly connected with the screw rod 43.

[0034] When the shift handle 42 is rotated, the shift handle 42 drives the screw rod 43 to rotate relative to the fixed plate 41, and drives the limiting block 44 to move in the connecting groove 11. When the limiting block 44 abuts against the side wall of the connecting groove 11, the first locking mechanism 4 locks the positioning block 3 on the vertical support 1; when the limiting block 44 is separated from the side wall of the connecting groove 11, the first locking mechanism 4 is unlocked, and the limiting block 44 can move up and down in the connecting groove 11. At this time, the positioning block 3 can move up and down relative to the vertical support 1.

[0035] As a preferred embodiment, as shown in the drawings, Figure 1 As shown, the fixed seat 2 comprises a first connecting plate 21 and a second connecting plate 22. The first connecting plate 21 and the second connecting plate 22 are arranged in parallel, and the first connecting plate 21 and the second connecting plate 22 are connected by two support plates 23. The two support plates 23 are respectively connected to the two sides of the first connecting plate 21 and the second connecting plate 22 and are arranged perpendicular to the plate surface of the first connecting plate 21 and the second connecting plate 22. The two support plates 23 are inclined, so that the height of the second connecting plate 22 is higher than that of the first connecting plate 21.

[0036] When the fixed seat 2 of the embodiment is installed on the bending machine, the first connecting plate 21 is installed on the rack of the bending machine by two upper and lower screws. The first connecting plate 21, the second connecting plate 22 and the two support plates 23 are connected into a frame structure, and the inclined support plates 23 make the fixed seat 2 have better support strength, so that the light curtain device on the vertical support 1 is more stable.

[0037] As a preferred embodiment, the second connecting plate 22 is connected with a sliding block fixed plate 24, and a first sliding block 25 is connected to one side of the sliding block fixed plate 24 away from the second connecting plate 22. The lower side of the sliding block fixed plate 24 is connected with a second locking mechanism 5 through a pin shaft 51, and the second locking mechanism 5 is located below the first locking mechanism 4 and can be locked in the connecting groove 11 of the vertical support 1. The locking principle of the second locking mechanism 5 is the same as that of the first locking mechanism 4, and the second locking mechanism 5 can drive the screw rod to rotate by tightening the lock.

[0038] When the vertical support 1 drives the positioning block 3 to move downward relative to the fixed seat 2 under the action of gravity until the positioning block 3 abuts against the upper side of the sliding block fixed plate 24, the fixed seat 2 is locked on the vertical support 1 through the second locking mechanism 5, further improving the stability of the light curtain device installation.

[0039] The lower side of the sliding block fixed plate 24 in the embodiment is connected with the second locking mechanism 5 through the pin shaft 51, which can facilitate the quick locking, disassembling and assembling of the fixed seat 2 and the vertical support 1 through plugging and unplugging the pin shaft 51, so as to quickly adjust the position of the vertical support 1 to avoid the installed die when the bending machine is replaced, avoiding affecting the replacement of the die.

[0040] As a preferred embodiment, a hinge block 241 is arranged at the top end of the sliding block fixed plate 24, a hinge seat 221 is arranged at the top end of the second connecting plate 22, the hinge seat 221 is connected with the hinge block 241 through a hinge shaft 26, and the bottom end of the second connecting plate 22 is connected with the sliding block fixed plate 24 through a bolt 27. A shock-absorbing pad is arranged between the bolt 27 and the second connecting plate 22.

[0041] The hinge between the sliding block fixed plate 24 and the second connecting plate 22 in the embodiment can reduce the influence of the vibration of the bending machine on the light curtain device installed on the vertical support 1, making the light curtain device more stable.

[0042] As a preferred embodiment, an indicating plate 9 is arranged on the sliding block fixed plate 24, a scale 8 is arranged on the vertical support 1, and the indicating head of the indicating plate 9 is arranged towards the scale 8. The fixed plates 41 of the first locking mechanism 4 and the second locking mechanism 5 are both arranged opposite to the scale 8.

[0043] The starting position of the scale 8 pointed by the indicating plate 9 can indicate the moving distance of the light curtain device.

[0044] As a preferred embodiment, a buffer connecting frame 6 is connected at the bottom end of the vertical support 1, and the light curtain device is installed at the bottom side of the buffer connecting frame 6.

[0045] As shown in Figure 1 The buffer connecting frame 6 includes a bottom plate 61 and a plurality of buffer connecting plates 62. The bottom plate 61 is provided with a plurality of strip-shaped holes and is connected with the light curtain device through the strip-shaped holes and bolts. The plurality of buffer connecting plates 62 are arranged on both sides of the bottom plate 61 respectively. The buffer connecting plate 62 is bent inward at the middle part. The top of the buffer connecting plate 62 is connected with the bottom plate of the vertical support 1. The buffer connecting plate 62 can reduce the influence of the vibration of the vertical support 1 on the light curtain device, so as to make the installation of the light curtain device more stable.

[0046] As a preferred embodiment, an upper cover plate 14 is arranged at the top end of the vertical support 1, and a bump stop 13 is arranged at the top end of the linear guide rail 12, and the bump stop 13 abuts against the upper cover plate 14. The upper cover plate 14 is connected with the vertical support 1 by a plurality of screws. The bump stop 13 is used to limit the moving distance of the positioning block 3, so as to avoid sliding out of the linear guide rail 12.

[0047] As a preferred embodiment, a handle 7 is arranged on the vertical support 1, so as to facilitate hand holding the handle 7 to move the vertical support 1.

[0048] In use, the fixed seat 2 is installed on the rack of the bending machine, the height of the positioning block 3 moving on the vertical support 1 is adjusted according to the position of the fixed plate 41 on the ruler 8, the positioning block 3 is locked on the vertical support 1 by the first locking mechanism 4 after reaching a specific position, the vertical support 1 drives the positioning block 3 to move downward relative to the fixed seat 2 under the action of gravity until the sliding block fixed plate 24 abuts against the positioning block 3, then the fixed seat 2 is locked on the vertical support 1 by the second locking mechanism 5, and the light curtain device is installed on the buffer connecting frame 6 at the bottom of the vertical support 1, so as to adjust the installation position of the light curtain device relative to the bending machine.

[0049] The above only describes the preferred embodiments of the present application, but the protection scope of the present application is not limited thereto, and any skilled person in the art can make some modifications and improvements without departing from the creative concept of the present application, which should be covered in the protection scope of the present application.

Claims

1. A light curtain support, characterized by, The utility model provides a light curtain device fixing device, including fixed seat (2), vertical support (1) and locating block (3), fixed seat (2) with vertical support (1) can slide connection, locating block (3) can slide connection in vertical support (1) on fixed seat (2) upside and can be locked in vertical support (1) through first locking mechanism (4), light curtain device is installed on vertical support (1).

2. A light curtain support according to claim 1, wherein, Linear guide rail (12) is arranged on vertical support (1) along its vertical direction, and first sliding block (25) matched with linear guide rail (12) is arranged on one end of fixed seat (2) close to vertical support (1), and fixed seat (2) is arranged on linear guide rail (12) through first sliding block (25), and second sliding block is arranged on locating block (3), and locating block (3) is arranged on linear guide rail (12) through second sliding block.

3. A light curtain support according to claim 1, wherein, First locking mechanism (4) includes index handle (42), screw rod (43), limit block (44) and fixed plate, fixed plate is arranged on the outside of vertical support (1) and is connected with locating block (3), vertical connecting groove (11) is arranged on vertical support (1), one end of screw rod (43) is connected with index handle (42), and the other end passes through fixed plate and extends into connecting groove (11), and limit block (44) is arranged in connecting groove (11) and is connected with screw rod (43).

4. A light curtain support according to claim 2, wherein, Fixed seat (2) includes first connecting plate (21) and second connecting plate (22), first connecting plate (21) is arranged in parallel with second connecting plate (22), and two supporting plates (23) are connected between first connecting plate (21) and second connecting plate (22), and two supporting plates (23) are connected on the two sides of first connecting plate (21) and second connecting plate (22) respectively and are arranged perpendicularly to the plate surface of first connecting plate (21) and second connecting plate (22).

5. A light curtain support according to claim 4, wherein, Second connecting plate (22) is connected with sliding block fixed plate (24), first sliding block (25) is connected to the side of sliding block fixed plate (24) away from second connecting plate (22), and second locking mechanism (5) is connected to the lower side of sliding block fixed plate (24) through pin shaft (51), and second locking mechanism is located on the lower side of first locking mechanism and can be locked in connecting groove (11) of vertical support (1).

6. A light curtain support according to claim 5, wherein, Hinge block (241) is arranged on the top end of sliding block fixed plate (24), hinge seat (221) is arranged on the top end of second connecting plate (22), hinge seat (221) is connected with hinge block (241) through hinge shaft (26), and the bottom end of second connecting plate (22) is connected with sliding block fixed plate (24) through bolt (27).

7. A light curtain support according to claim 5, wherein, Indicating plate is arranged on sliding block fixed plate (24), and scale (8) is arranged on vertical support (1), and the indicating head of indicating plate is arranged towards scale (8).

8. A light curtain support according to claim 1, wherein, A buffer connecting frame (6) is connected to the bottom end of the vertical support (1), and a light curtain device is installed on the bottom side of the buffer connecting frame (6).

9. A light curtain support according to claim 2, wherein, An upper cover plate (14) is arranged at the top end of the vertical support (1), and a bump stop (13) is arranged at the top end of the linear guide rail (12), and the bump stop (13) abuts against the upper cover plate (14).

10. A light curtain support according to claim 1, wherein, A handle (7) is arranged on the vertical support (1).

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