CN213179879U - Casing of grating ruler reading head - Google Patents

Abstract

The utility model relates to a casing, concretely relates to grating ruler reading head's casing. Including box body and lid, admittedly be equipped with lid, its characterized in that on the box body: the box body be the cuboid, be provided with in the box body and put the thing groove, be provided with the cable groove on putting the box body at thing groove both ends, be provided with more than one interior pilot hole on the box body of cable groove both sides, one side of box body bottom is provided with the mounting flange, the symmetry is provided with the slider on the mounting flange, the opposite side of box body bottom is provided with preceding protruding grain. The shell has the advantages of small sliding resistance and easy assembly, the contact surface of the shell and the base of the grating ruler is reduced through the front convex particles and the rear convex particles at the bottom of the shell, the friction force is further reduced, and the sliding fluency is increased; the box body is connected in a wiring mode through the cable groove and the cable hole, the strength is guaranteed, meanwhile, the good sealing performance is kept, the problems that the existing shell is large in sliding resistance and difficult to assemble are solved, and the using requirement of the grating ruler reading head is met.

Description

Casing of grating ruler reading head

Technical Field

The utility model relates to a casing, concretely relates to grating ruler reading head's casing.

Background

A grating scale is a commonly used measuring device in a closed-loop servo system of a numerical control machine, and is also called as a grating scale displacement sensor, and is generally used for detecting linear displacement or angular displacement. The grating ruler uses a reading head moving on a scale grating to carry out measurement and feedback, a specially-made shell is usually arranged outside the reading head to protect electronic devices of the reading head, and meanwhile, the reading head can smoothly slide on a base, so that the measurement work is conveniently finished.

Although the shell of the existing reading head has higher strength due to the structure, the shell has larger frictional resistance with the base and unsmooth sliding, so that the relative sliding between the reading head and the scale grating is influenced, the measurement precision of the grating ruler is reduced, and the use requirement cannot be met; on the other hand, for making the grating chi can adapt to multiple operational environment, improve the performance such as waterproof and resistance to compression of grating chi, the casing of grating chi reading head needs to have good leakproofness, but the casing of current reading head can increase the degree of difficulty of assembly when realizing the leakproofness for electron device in the casing of reading head is difficult to be connected with parts such as the coaster of grating chi, consequently needs a new casing to solve foretell not enough.

SUMMERY OF THE UTILITY MODEL

In order to overcome the technical defects of large sliding resistance and difficult assembly of the existing shell, the utility model provides a shell of a grating ruler reading head, which has small sliding resistance and is easy to assemble.

In order to solve the above problem, the utility model discloses realize according to following technical scheme:

a casing of grating chi reading head, including box body and lid, be equipped with lid, its characterized in that on the box body admittedly: the box body be the cuboid, be provided with in the box body and put the thing groove, be provided with the cable groove on putting the box body at thing groove both ends, be provided with more than one interior pilot hole on the box body of cable groove both sides, one side of box body bottom is provided with the mounting flange, the symmetry is provided with the slider on the mounting flange, the opposite side of box body bottom is provided with preceding protruding grain.

The front convex particles are arc-shaped bulges.

The bottom of the storage groove is symmetrically provided with reinforced flanges.

The top of the box body is symmetrically provided with fixing holes.

The two ends of the mounting flange are in an acute angle shape, and more than one cable hole is formed in the mounting flange.

The sliding block is a rectangular body.

The slider be the lambda font, two stabilizer blades of slider lambda font are the dislocation form setting.

The box cover is a rectangular body, limiting flanges are symmetrically arranged on the box cover, more than one outer assembly holes are formed in the box cover on two sides of each limiting flange, and rear convex particles are symmetrically arranged on one side of the box cover.

The limiting flange is provided with an avoiding groove which is arc-shaped.

Compared with the prior art, the beneficial effects of the utility model are that:

the casing of the grating ruler reading head has the advantages of small sliding resistance and easy assembly, the casing is assembled on the base of the grating ruler through the inverted V-shaped sliding block, the sliding groove is matched to play a limiting role, the friction between the casing and the base of the grating ruler can be reduced, the contact surface between the casing and the base of the grating ruler is reduced through the front convex particles and the rear convex particles at the bottom of the casing, the friction force is further reduced, and the smoothness of sliding is increased; the box body is connected in a wiring mode through the cable groove and the cable hole, the strength is guaranteed, meanwhile, the good sealing performance is kept, the problems that the existing shell is large in sliding resistance and difficult to assemble are solved, and the using requirement of the grating ruler reading head is met.

Drawings

The following detailed description of embodiments of the invention is provided with reference to the accompanying drawings, in which:

fig. 1 is a schematic top view of the present invention;

fig. 2 is a left side view structure diagram of the present invention;

fig. 3 is a schematic front view of the box body of the present invention;

fig. 4 is a schematic bottom view of the case of the present invention;

FIG. 5 is a schematic sectional view taken along line A-A in FIG. 3;

fig. 6 is a schematic bottom view of the box body of the inverted v-shaped slider according to the embodiment of the present invention;

fig. 7 is a left side view structural diagram of the box body of the inverted V-shaped slider according to the embodiment of the present invention;

fig. 8 is a schematic view of the structure of the box cover of the present invention.

In the figure: 1. the box body 11, the object placing groove 12, the cable groove 13, the inner assembling hole 14, the mounting flange 15, the sliding block 16, the front convex particle 17, the reinforcing flange 18, the fixing hole 19, the cable hole 2, the box cover 21, the limiting flange 22, the outer assembling hole 23, the rear convex particle 24 and the avoiding groove.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

As shown in fig. 1 to 8, the housing of a grating ruler reading head according to the present invention comprises a housing 1 and a housing cover 2, wherein the housing 1 is a rectangular body, a storage groove 11 is provided in the housing 1, and the storage groove 11 is used for placing an electronic device for processing a measurement signal, as a preferred embodiment of the present invention, a reinforcing flange 17 is symmetrically provided at the bottom of the storage groove 11, so as to improve the strength of the housing 1 and prevent the housing 1 from deforming at the weak point of the storage groove 11; be provided with cable groove 12 on the box body 1 of putting thing groove 11 both ends, cable groove 12 is used for making things convenient for outside data line to pass through to on transmitting the displacement data of grating chi to outside host computer, further, the bottom of cable groove 12 sets up to the arc, with the scraping damage of reduction to the data line.

More than one inner assembling holes 13 are formed in the box body 1 on two sides of the cable groove 12, the inner assembling holes 13 are used for being matched with screws to perform assembling work, and one side of the bottom of the box body 1 is provided with an installing flange 14, as a better implementation mode of the utility model, two ends of the installing flange 14 are in an acute angle shape so as to reduce the friction force between the installing flange 14 and a grating ruler base and ensure that the sliding process of the shell is smoother, and more than one cable hole 19 is also formed in the installing flange 14 so as to facilitate a data line inside the box body 1 to pass through and ensure that an electronic device arranged in the object placing groove 11 can be connected with a measuring head outside the shell;

the symmetry is provided with slider 15 on mounting flange 14, slider 15 is the cuboid, and slider 15 imbeds in the spout of grating chi base in the course of the work to make this casing slide under the condition that can't break away from the base, as the utility model relates to an embodiment of preferred, slider 15 be the lambda font, two stabilizer blades of 15 lambda fonts of slider are dislocation form setting, the advantage of this structure lies in: the sliding block 15 further reduces the contact area of the sliding block 15 and the sliding groove of the grating ruler base while keeping the strength of the sliding block, reduces the sliding friction force, reduces the size of the sliding block 15, and saves the production cost.

The other side of the bottom of the box body 1 is provided with the front convex particle 16, the front convex particle 16 is an arc-shaped bulge, and the arrangement has the advantages that the front convex particle 16 enables the bottom of the box body 1 not to be directly contacted with the base of the grating ruler, but supports are provided by the front convex particle 16, so that the contact area of the shell and the base of the grating ruler is obviously reduced, and the sliding friction force is reduced; the top symmetry of box body 1 be provided with fixed orifices 18, fixed orifices 18 are used for fixing box body 1 to the removal work piece of awaiting measuring to make the removal work piece drive grating ruler's reading head motion, realize measuring the function of displacement.

The box cover 2 is fixedly installed on the box body 1, the box cover 2 is a rectangular body, the box cover 2 is symmetrically provided with limiting flanges 21, the limiting flanges 21 are clamped in cable grooves 12, the limiting flanges 21 limit the box cover 2 through matching with the cable grooves 12, so that the box cover 2 cannot rotate relative to the box body 1, furthermore, the limiting flanges 21 are provided with avoidance grooves 24, the avoidance grooves 24 are arc-shaped, the arc-shaped avoidance grooves 24 are used for reducing scraping damage to data lines, more than one outer assembly holes 22 are formed in the box cover 2 on two sides of the limiting flanges 21, and the outer assembly holes 22 are used for matching with screws and the inner assembly holes 13 to fixedly connect the box cover 2 with the box body 1; one side of the box cover 2 is symmetrically provided with rear convex particles 23, and the rear convex particles 23 are used for being matched with the front convex particles 16 to keep the shell horizontal and reduce the contact area between the box body 1 and the grating ruler base so as to reduce friction.

The shell has the advantages of small sliding resistance and easy assembly, the shell is assembled on the base of the grating ruler through the inverted V-shaped sliding block 15, the shell not only is matched with the sliding groove to play a limiting role, but also can reduce the friction between the shell and the base of the grating ruler, the contact surface between the shell and the base of the grating ruler is reduced through the front convex particles 16 and the rear convex particles 23 at the bottom of the shell, the friction force is further reduced, and the sliding smoothness is increased; the box body 1 is connected in a wiring mode through the cable groove 12 and the cable hole 19, the strength is guaranteed, meanwhile, the good sealing performance is kept, the problems that the existing shell is large in sliding resistance and difficult to assemble are solved, and the using requirement of the grating ruler reading head is met.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, so that any modification, equivalent change and modification made by the technical spirit of the present invention to the above embodiments do not depart from the technical solution of the present invention, and still fall within the scope of the technical solution of the present invention.

Claims (9)

1. The utility model provides a casing of grating chi reading head, includes box body (1) and lid (2), admittedly is equipped with lid (2) on box body (1), its characterized in that: the box body (1) be the cuboid, be provided with in the box body (1) and put thing groove (11), be provided with cable groove (12) on box body (1) of putting thing groove (11) both ends, be provided with more than one interior pilot hole (13) on box body (1) of cable groove (12) both sides, one side of box body (1) bottom is provided with mounting flange (14), the symmetry is provided with slider (15) on mounting flange (14), the opposite side of box body (1) bottom is provided with preceding protruding grain (16).

2. The housing for a grating scale head of claim 1, wherein: the front convex particles (16) are arc-shaped bulges.

3. The housing for a grating scale head of claim 1, wherein: the bottom of the storage groove (11) is symmetrically provided with reinforced flanges (17).

4. The housing for a grating scale head of claim 1, wherein: the top of the box body (1) is symmetrically provided with fixing holes (18).

5. The housing for a grating scale head of claim 1, wherein: both ends of the mounting flange (14) are in an acute angle shape, and more than one cable hole (19) is arranged on the mounting flange (14).

6. The housing for a grating scale head of claim 1, wherein: the sliding block (15) is a rectangular body.

7. The housing for a grating scale head of claim 1, wherein: slider (15) be the lambda font, two stabilizer blades of slider (15) lambda font are dislocation form setting.

8. The housing for a grating scale head of claim 1, wherein: the box cover (2) is a rectangular body, the box cover (2) is symmetrically provided with limit flanges (21), the box cover (2) on two sides of each limit flange (21) is provided with more than one outer assembly hole (22), and one side of the box cover (2) is symmetrically provided with rear convex particles (23).

9. The housing for a grating scale head of claim 8, wherein: the limiting flange (21) is provided with an avoiding groove (24), and the avoiding groove (24) is arc-shaped.

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