Grating reading head protective shell of grating ruler

Abstract

The utility model relates to the technical field of grating rulers, in particular to a grating read head protective shell of a grating ruler, which comprises a grating read head body and a protective piece, the protective piece is arranged at the transmitting end of the grating read head body and comprises a rotating stand, a first sliding frame, a protective cylinder and a cleaning piece, and the rotating stand is vertically fixed on the vertical end face of the outer side of the grating read head body. And a first sliding frame is vertically and rotatably connected to the lower portion of the rotating frame, a sliding block is vertically and slidably assembled in the first sliding frame, a protection cylinder is vertically arranged on the output end face of the sliding block and vertically arranged at the transmitting end of the grating reading head body in a sleeving mode, and a mirror plate is assembled at the bottom end of the protection cylinder. According to the grating reading head, the protection cylinder is arranged to form safety protection for the transmitting end part of the grating reading head body, so that the problems that the protection window of the grating reading head is scratched or stained during use, the emission of light is influenced, and the later detection accuracy is reduced are solved, and the overall protection property of the grating reading head is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to grating ruler technical field, especially relate to a grating ruler grating reading head protection shell. BACKGROUND

[0002] Grating ruler is a kind of high-precision displacement sensor, is widely used in numerical control machine tool, measuring instrument and other need accurate position feedback automation equipment, it detects the linear displacement of object by optical principle, and converts displacement information into electrical signal output.

[0003] The utility model discloses a new type dustproof intelligent machine tool grating ruler device, including bottom plate, aluminum profile shell, grating ruler, left end cover, left end cover mounting hole, cable head, right end cover, right end cover mounting hole, reading head structure and dust strip, bottom plate setting is in the lowermost part of aluminum profile shell, grating ruler is installed in the inside of aluminum profile shell, left end cover is fixedly arranged in the left end of aluminum profile shell by left end cover mounting hole, cable head is inserted and is arranged in the right side of reading head structure, right end cover is fixedly arranged in the right end of aluminum profile shell by right end cover mounting hole, by the setting of cable head, reading head structure and reading head structure, it is favorable to prevent corrosion oxidation and signal interference, and then prevent the entry of dust, to be favorable to improve intelligent degree, real-time display position information, so that convenient to use, further improve the protection effect, enhance stability, prolong service life.

[0004] But the grating reading head of grating ruler lacks protection component, when machine tool processes workpiece, the cooling liquid or metal chips of machining splashing will impact sputtering on the grating reading head of grating ruler, to cause the scratch or stain of the protective window of grating reading head, to affect the emission of light, cause the detection accuracy of later stage to reduce. Utility model content

[0005] The utility model solves the problem in relevant art, and proposes a grating ruler grating reading head protection shell.

[0006] In order to solve the above technical problems, the utility model is through following technical scheme realizes: a grating read head protection shell of grating ruler, including grating read head body and protection piece, grating read head body's emission end is provided with protection piece, protection piece includes rotating support, first sliding frame, protection cylinder and cleaning spare, rotating support is fixed on the outside vertical end face of grating read head body perpendicularly, and rotating support below vertical rotation is connected with first sliding frame, the sliding block is vertically slidably assembled in first sliding frame, and the output end surface of sliding block is vertically provided with protection cylinder, protection cylinder is vertically set in the emission end of grating read head body, and the bottom end of protection cylinder is assembled with mirror plate, the outer wall of protection cylinder is horizontally fixed with second sliding frame, and the other end of second sliding frame is fixed in sliding block end, and the cleaning spare is horizontally slidably assembled in second sliding frame.

[0007] As a preferred scheme, the other end of the sliding block is vertically fixed with a pull spring, and the other end of the pull spring is fixed on the top surface of the first sliding frame.

[0008] As a preferred scheme, the outer wall bottom of the protection cylinder is horizontally fixed with a hole seat, the outer wall one end of the mirror plate is vertically fixed with a stud, and the stud is inserted into the hole seat, and a nut is threadedly assembled on the stud.

[0009] As a preferred scheme, the cleaning spare includes a sliding plate, the sliding plate is arranged below the second sliding frame, and the top end of the sliding plate is horizontally slidably assembled in the second sliding frame.

[0010] As a preferred scheme, one end of the second sliding frame is horizontally fixed with an electric telescopic rod, and the output end of the electric telescopic rod is fixed on the sliding plate.

[0011] As a preferred scheme, the lower side bottom surface of the sliding plate is vertically fixed with a cleaning motor, and the output end of the cleaning motor is horizontally fixed with a rotating cylinder plate.

[0012] As a preferred scheme, the top surface of the rotating cylinder plate is slidably inserted with a top plate, a cloth cover is sleeved on the top surface of the top plate, a pressing spring is vertically arranged between the top plate and the rotating cylinder plate, and the two ends of the pressing spring are respectively fixed on the adjacent end surfaces of the top plate and the rotating cylinder plate.

[0013] Compared with the prior art, the protective tube is pulled out from the emitting end of the grating reading head body, then the mirror plate is installed at the bottom end of the protective tube, the slider of the second sliding frame end is loosened and vertically moves upward in the first sliding frame, the protective tube is sleeved on the emitting end of the grating reading head body, the emitting end of the grating reading head body is protected by the protective tube, then the mirror plate is convenient for light transmission, the emitting end of the grating reading head body is protected by the protective tube, the problem that scratches or stains appear on the protective window of the grating reading head during use, thereby affecting the light emission and reducing the detection accuracy in the later period is solved, and the overall protection of the grating reading head is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is the overall structure schematic diagram of the utility model;

[0015] Figure 2 is the exploded structure schematic diagram of the utility model;

[0016] Figure 3 is the structure schematic diagram of the protection piece in the exploded state in the embodiment of the utility model;

[0017] Figure 4 is the structure schematic diagram of the protective tube in the exploded state in the embodiment of the utility model;

[0018] Figure 5 is the structure schematic diagram of the cleaning piece in the exploded state in the embodiment of the utility model.

[0019] In the drawing: 1, grating reading head body; 2, protection piece; 21, rotating frame; 22, first sliding frame; 23, slider; 24, protective tube; 241, second sliding frame; 242, electric telescopic rod; 243, hole seat; 244, nut; 245, mirror plate; 246, stud; 25, cleaning piece; 251, sliding plate; 252, cleaning motor; 253, rotating cylinder plate; 254, pressing spring; 255, top plate; 256, cloth cover; 26, pull spring. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. The description of the at least one exemplary embodiment is merely illustrative in nature and in no way should be construed as any limitation on the present application and its applications or uses. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0021] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, components, and / or groups thereof, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0022] The relative arrangement of components and steps, numerical expressions, and numerical values set forth in the embodiments are not intended to limit the scope of the present application unless specifically stated otherwise. At the same time, it should be understood that the sizes of the various parts shown in the drawings are not drawn in proportion to the actual proportions. Techniques, methods and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered as part of the authorized description. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary, and not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numbers and letters represent similar items in the following drawings, so further discussion is not necessary once an item is defined in one drawing.

[0023] In the description of the present application, it should be understood that the orientation words such as "front, rear, upper, lower, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" 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 the description, and in the absence of contrary statements, these orientation words do not indicate and imply that the indicated device or element must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the scope of protection of the present application; the orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.

[0024] For purposes of the description hereinafter, spatial relative terms, such as "above", "below", "upper", "lower", and the like, can be used to describe the relative position of one element or feature to another as illustrated in the figures. It will be understood that the spatial relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. For example, if a device in the figures is inverted, then a dependent "above" or "up" can be oriented "below" or "down" in the inverted configuration. Thus, the exemplary term "above" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatial relative descriptors used herein interpreted accordingly.

[0025] In addition, it should be noted that the use of "first", "second", and the like, terminology to describe various components in the above description is used only for the convenience of the reader and is in no way intended to limit the scope of the application. The terms "first", "second", and the like, are intended to distinguish between two or more components, but are not intended to limit the scope of the application.

[0026] As Figures 1 to 5As shown, a grating reader protective shell of a grating ruler includes a grating reader body 1 and a protective piece 2, the emitting end of the grating reader body 1 is provided with the protective piece 2, the protective piece 2 includes a rotating frame 21, a first sliding frame 22, a protective cylinder 24 and a cleaning piece 25, the rotating frame 21 is vertically fixed on the vertical end surface of the outer side of the grating reader body 1, and the first sliding frame 22 is vertically rotatably connected below the rotating frame 21, the sliding block 23 is vertically slidably assembled in the first sliding frame 22, the protective cylinder 24 is vertically arranged on the output end surface of the sliding block 23, the protective cylinder 24 is vertically sleeved on the emitting end of the grating reader body 1, and the mirror plate 245 is assembled at the bottom end of the protective cylinder 24, the second sliding frame 241 is horizontally fixed on the outer wall of the protective cylinder 24, and the other end of the second sliding frame 241 is fixed on the end of the sliding block 23, the cleaning piece 25 is horizontally slidably assembled in the second sliding frame 241, the other end of the sliding block 23 is vertically fixed with the pull spring 26, and the other end of the pull spring 26 is fixed on the top surface of the first sliding frame 22, in use, the sliding block 23 at the end of the second sliding frame 241 is vertically moved downward in the first sliding frame 22, so that the protective cylinder 24 is pulled out downward from the emitting end of the grating reader body 1, then after the appropriate mirror plate 245 is installed at the bottom end of the protective cylinder 24, the sliding block 23 at the end of the second sliding frame 241 is vertically moved upward in the first sliding frame 22, driving the protective cylinder 24 to be sleeved on the emitting end of the grating reader body 1, so that the protective cylinder 24 sleeved on the emitting end of the grating reader body 1 forms safety protection for the emitting end of the grating reader body 1, then the mirror plate 245 is arranged to facilitate the transmission of light, so that the arrangement of the protective cylinder 24 forms safety protection for the emitting end of the grating reader body 1, avoids scratches or stains on the protective window of the grating reader in use, thereby affecting the emission of light, causing the detection accuracy to be reduced in the later stage, and improving the overall protection of the grating reader.

[0027] In one embodiment, as shown in Figure 3 and 4 , the outer wall bottom of the protective cylinder 24 is horizontally fixed with a hole seat 243, the outer wall of the mirror plate 245 is vertically fixed with a threaded hole 246 at one end, and the threaded hole 246 is inserted into the hole seat 243, and the threaded hole 246 is threadedly assembled with a nut 244, in use, when the mirror plate 245 is assembled with the bottom end of the protective cylinder 24, the threaded hole 246 penetrates the hole seat 243 on the outer wall of the protective cylinder 24, and the nut 244 is threadedly assembled on the threaded hole 246, ensuring the effectiveness of the assembly of the mirror plate 245 at the bottom end of the protective cylinder 24.

[0028] In one embodiment, as shown in Figure 3 , Figure 4 and Figure 5As shown, the cleaning member 25 comprises a sliding plate 251 arranged below the second sliding frame 241, and the top end of the sliding plate 251 is horizontally slidingly assembled in the second sliding frame 241, one end of the second sliding frame 241 is horizontally fixed with an electric telescopic rod 242, and the output end of the electric telescopic rod 242 is fixed on the sliding plate 251, and the lower side of the sliding plate 251 is vertically fixed with a cleaning motor 252, and the output end of the cleaning motor 252 is horizontally fixed with a rotating drum plate 253, the top surface of the rotating drum plate 253 is slidingly inserted with a top plate 255, and the top plate 255 is sleeved with a cloth cover 256, and the press spring 254 is vertically arranged between the top plate 255 and the rotating drum plate 253, and the two ends of the press spring 254 are respectively fixed on the adjacent end surfaces of the top plate 255 and the rotating drum plate 253. In use, in order to clean the scratches and stains on the mirror plate 245, the electric telescopic rod 242 is started to extend to push the sliding plate 251 to horizontally slide in the second sliding frame 241, the cleaning motor 252 is started to drive the rotating drum plate 253 to rotate, and the cloth cover 256 is driven to clean the scratches and stains on the mirror plate 245, thereby effectively ensuring the permeability of the mirror plate 245 and ensuring the accuracy of the later detection.

[0029] In the embodiment, the sliding block 23 at the end of the second sliding frame 241 is pulled to vertically move downward in the first sliding frame 22, so that the protection cylinder 24 is pulled out downward from the emitting end of the grating reader body 1, then after the mirror plate 245 is installed at the bottom end of the protection cylinder 24, the sliding block 23 at the end of the second sliding frame 241 is loosened to vertically move upward in the first sliding frame 22, so that the protection cylinder 24 is sleeved on the emitting end of the grating reader body 1, thereby forming safety protection for the emitting end of the grating reader body 1 by sleeving the protection cylinder 24 on the emitting end of the grating reader body 1, and then the mirror plate 245 is arranged to facilitate the transmission of light. In order to clean the scratches and stains on the mirror plate 245, the electric telescopic rod 242 is started to extend to push the sliding plate 251 to horizontally slide in the second sliding frame 241, the cleaning motor 252 is started to drive the rotating drum plate 253 to rotate, and the cloth cover 256 is driven to clean the scratches and stains on the mirror plate 245.

[0030] The above is the preferred embodiment of the present application, and the person skilled in the art of the present application can also make changes and modifications to the above embodiment, therefore, the present application is not limited to the above specific embodiments, and any obvious improvement, replacement or modification made by the person skilled in the art on the basis of the present application shall fall within the protection scope of the present application.

Claims

1. A grating reader protection housing for a grating scale, characterised in that, The utility model provides a light barrier reading head protection device, including the light barrier reading head body (1) and the protection piece (2), the emission end of light barrier reading head body (1) is provided with protection piece (2), protection piece (2) includes rotating stand (21), first sliding frame (22), protection cylinder (24) and cleaning piece (25), rotating stand (21) is fixed vertically on the outside vertical end face of light barrier reading head body (1), and rotating stand (21) is vertically rotatably connected with first sliding frame (22) below, sliding block (23) is vertically slidably assembled in first sliding frame (22), and protection cylinder (24) is vertically arranged on the output end surface of sliding block (23), protection cylinder (24) is vertically sleeved in the emission end of light barrier reading head body (1), and mirror plate (245) is assembled at the bottom end of protection cylinder (24), second sliding frame (241) is fixed horizontally on the outer wall of protection cylinder (24), and the other end of second sliding frame (241) is fixed in the end of sliding block (23), and cleaning piece (25) is horizontally slidably assembled in second sliding frame (241).

2. A grating scale grating reader protective housing according to claim 1, characterised in that: The other end of sliding block (23) is vertically fixed with pull spring (26), and the other end of pull spring (26) is fixed on the top surface of first sliding frame (22).

3. A grating scale shielded enclosure for a grating scale reader as claimed in claim 1, characterised in that: The outer wall bottom of protection cylinder (24) is fixed with hole seat (243), and the outer wall one end of mirror plate (245) is vertically fixed with stud (246), and stud (246) is inserted into hole seat (243), and nut (244) is threadedly assembled on stud (246).

4. A grating scale shielded enclosure for a grating scale reader as claimed in claim 1, characterised in that: Cleaning piece (25) includes sliding plate (251), sliding plate (251) is arranged below second sliding frame (241), and the top end of sliding plate (251) is horizontally slidably assembled in second sliding frame (241).

5. A grating scale grating reader protective housing according to claim 4, characterised in that: One end of second sliding frame (241) is fixed with electric telescopic rod (242), and the output end of electric telescopic rod (242) is fixed on sliding plate (251).

6. A grating scale grating reader protective housing according to claim 4, wherein: The downside bottom surface of sliding plate (251) is vertically fixed with cleaning motor (252), and the output end of cleaning motor (252) is fixed with rotating cylinder plate (253).

7. A grating scale grating reader protective housing according to claim 6, characterised in that: The top surface of rotating cylinder plate (253) is slidably inserted with top plate (255), and cloth cover (256) is sleeved on the top surface of top plate (255), and pressing spring (254) is vertically arranged between top plate (255) and rotating cylinder plate (253), and the two ends of pressing spring (254) are fixed on the adjacent end surfaces of top plate (255) and rotating cylinder plate (253) respectively.

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