CN213004159U - Mounting structure of grating ruler - Google Patents
Mounting structure of grating ruler Download PDFInfo
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- CN213004159U CN213004159U CN202021517930.1U CN202021517930U CN213004159U CN 213004159 U CN213004159 U CN 213004159U CN 202021517930 U CN202021517930 U CN 202021517930U CN 213004159 U CN213004159 U CN 213004159U
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- grating ruler
- reading head
- grating
- ruler
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Abstract
The utility model discloses a grating ruler mounting structure, which is used on a numerical control machine tool, wherein part of the machine tool comprises a base, a Z sliding plate and an X sliding block connecting seat, the Z sliding plate adopts a guide rail pair to be connected with the base in a sliding way, the X sliding block connecting seat is fixedly connected with the base, the Z sliding plate is vertically arranged with the X sliding block connecting seat, a marble square ruler is fixed outside the X sliding block connecting seat and is parallel to the Z sliding plate, and the grating ruler mounting structure comprises a grating ruler component, a reading head and a connecting plate; the grating ruler component is fixed on the marble square ruler and is parallel to the axial direction of the marble square ruler; the reading head is fixed on a connecting plate, and the connecting plate is fixed on the side surface of the lower end of the Z sliding plate; the reading head and the grating ruler component are arranged oppositely, and the reading head moves along the arrangement direction of the grating ruler component. The utility model discloses the utilization changes the conventional mounting method of grating chi on the numerical control vertical lathe, solves the drawback that originally exists in the design, and it is big that this design has grating chi mounted position installation base face, and fixed connection rigidity is high, and high accuracy is not influenced by the thermal expansion characteristics such as.
Description
Technical Field
The utility model relates to a machine tool equipment technical field, more specifically the mounting structure who relates to a grating chi that says so.
Background
A grating scale, also called a grating scale displacement sensor (grating scale sensor), is a measurement feedback device that operates using the optical principle of a grating. Grating scales are often applied to closed-loop servo systems of numerically controlled machine tools and can be used for detecting linear displacement or angular displacement. The signal output by the sensor is digital pulse, and the sensor has the characteristics of large detection range, high detection precision and high response speed. More specifically, the numerical control system performs machining according to the position information fed back by the grating ruler, so that the precision of the grating ruler directly determines the machining precision of the numerical control machine tool.
The traditional structure is composed of a scale grating and a grating reading head. The scale grating is generally fixed on a machine tool transmission part, and a grating reading head is arranged on the machine tool fixing part and used for detecting the coordinates of a cutter and a workpiece to observe and track a feed error, so that the function of compensating the motion error of the cutter is achieved. However, due to the structure, the grating ruler generates measurement deviation under the action of operation thermal expansion on a transmission part of the lathe, and the grating mounting surface of the ruler is small in size and low in rigidity, so that the machining precision of the machine tool is influenced.
Therefore, how to provide a mounting structure of a grating ruler with high rigidity, high precision and stable operation is a problem that needs to be solved urgently by the technical personnel in the field.
Disclosure of Invention
In view of this, the utility model provides a high rigidity, high accuracy, a mounting structure of grating chi operates steadily.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a mounting structure of a grating ruler is used on a numerical control machine tool, wherein part of parts of the machine tool comprise a base, a Z sliding plate and an X sliding block connecting seat, the Z sliding plate is connected with the base in a sliding mode through a guide rail pair, the X sliding block connecting seat is fixedly connected with the base, the Z sliding plate is perpendicular to the X sliding block connecting seat, a marble square ruler is fixed outside the X sliding block connecting seat and is parallel to the Z sliding plate, and the mounting structure comprises a grating ruler component, a reading head and a connecting plate;
the grating ruler component is fixed on the marble square ruler and is axially parallel to the marble square ruler;
the reading head is fixed on the connecting plate, and the connecting plate is fixed on the side surface of the lower end of the Z sliding plate;
the reading head and the grating ruler component are arranged oppositely, and the reading head moves along the arrangement direction of the grating ruler component.
The utility model utilizes the conventional installation method of the grating ruler on the numerical control vertical lathe to solve the defects existing in the original design, and the design has the characteristics of large installation base surface of the installation position of the grating ruler, high rigidity of fixed connection, high precision, no thermal expansion influence and the like;
specifically, the grating scale component is fixed on one side surface of the marble square scale, so that the problem that the grating scale component cannot normally work due to the fact that the grating scale is directly installed on the ram and oil mist is immersed in the grating scale is avoided, and the grating scale component has the characteristics of large installation base surface and high fixed connection rigidity; and the reading head is fixed on the connecting plate, and the connecting plate is fixed on the side surface of the lower end of the Z sliding plate, so that the influence of thermal expansion of a moving casting on the precision of the moving casting is avoided, the running stability is ensured, and the machining precision of a machine tool is further ensured.
Furthermore, grating chi subassembly including connect in first mount and second mount and the grating chi of marble square chi lateral part, first mount with the second mount is fixed in along the length direction of grating chi both ends about the grating chi, the reading head with the grating chi corresponds.
The utility model discloses a fixed stable installation that makes grating chi on the lathe of mount improves grating chi's measurement accuracy. When the reading head slides relative to the fixed grating ruler, the grating ruler can move and measure.
Furthermore, the connecting plate comprises an L-shaped fixing plate fixed on the side surface of the lower end of the Z sliding plate at one end and a reading head fixing plate fixedly connected with the other end of the L-shaped fixing plate;
the reading head is fixed the other end of the reading head fixing plate and is abutted to the grating ruler.
Adopt above-mentioned fixed knot to construct and can satisfy the relative design of reading head and grating chi to connect the reading head through the connecting plate and make reading head rigidity better, move the operation more stable.
Further, when the Z sliding plate is located at the lowest position, the reading head corresponds to the zero position of the grating ruler; and when the Z sliding plate is positioned at the highest position, the reading head corresponds to three quarters to four fifths of the scale of the grating ruler.
The utility model discloses grating ruler's length is greater than the displacement of reading head, is favorable to improving the number of degrees precision to prevent that the reading head from surpassing the grating ruler scope when moving along with the Z slide transfinites.
The utility model discloses high rigidity, high accuracy, operate steadily.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic view of an overall structure of a mounting structure of a grating ruler according to the present invention;
fig. 2 is a schematic structural diagram of a grating scale assembly in the mounting structure of the grating scale of the present invention;
fig. 3 is a schematic view of an enlarged structure of a portion a in the mounting structure of the grating ruler according to the present invention;
wherein, 1 is a base; 2 is a Z sliding plate; 3 is an X sliding block connecting seat; 4 is a marble square ruler; 5 is a grating ruler component; 6 is a reading head; 7 is a connecting plate; 51 is a first fixing frame; 52 is a second fixing frame; 53 is a grating ruler; 71 is an L-shaped fixing plate; and 72 is a reading head fixing plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1 to 3, the embodiment of the present embodiment discloses a mounting structure of a grating ruler, which is used for a numerical control machine tool, where part of the machine tool includes a base 1, a Z sliding plate 2 and an X sliding block connecting seat 3, the Z sliding plate 2 is slidably connected to the base 1 by a guide rail pair, the X sliding block connecting seat 3 is fixedly connected to the base 1, the Z sliding plate 2 is perpendicular to the X sliding block connecting seat 3, a marble square ruler 4 is fixed on the outer side of the X sliding block connecting seat 3 and is parallel to the Z sliding plate, and the mounting structure includes a grating ruler component 5, a reading head 6 and a connecting plate 7;
the grating ruler component 5 is fixed on the marble square ruler 4 and is axially parallel to the marble square ruler 4;
the reading head 6 is fixed on the connecting plate 7, and the connecting plate 7 is fixed on the side surface of the lower end of the Z sliding plate 2;
the reading head 6 is arranged opposite to the grating ruler component 5, and the reading head 6 moves along the arrangement direction of the grating ruler component 5.
The conventional installation method of the grating ruler on the numerically controlled vertical lathe is changed, so that the defects existing in the original design are overcome, and the design has the characteristics of large installation base surface of the grating ruler installation position, high fixed connection rigidity, high precision, no thermal expansion influence and the like;
specifically, the grating scale component 5 is fixed on one side surface of the marble square scale 4, so that the problem that the grating scale component 5 cannot normally work due to the fact that the grating scale is directly installed on a ram and oil mist is immersed in the grating scale is avoided, and the grating scale component 5 is large in installation base surface and high in fixed connection rigidity; and the reading head 6 is fixed on the connecting plate 7, and the connecting plate 7 is fixed on the side surface of the lower end of the Z sliding plate 2, so that the influence of thermal expansion of a moving casting on the precision is avoided, the running stability is ensured, and the machining precision of a machine tool is further ensured.
In this embodiment, the grating scale assembly 5 includes a first fixing frame 51 and a second fixing frame 52 connected to the side of the marble square scale 4, and a grating scale 53, the first fixing frame 51 and the second fixing frame 52 are fixed to the upper and lower ends of the grating scale 53 along the length direction of the grating scale 53, and the reading head 6 corresponds to the grating scale 53.
The embodiment makes the grating ruler 53 stably installed on the machine tool by fixing the fixing frame, and improves the measurement accuracy of the grating ruler. When the reading head 6 slides relative to the fixed grating ruler 53, the grating ruler movement measurement is realized.
In this embodiment, the connecting plate 7 includes an L-shaped fixing plate 71 fixed to a side surface of a lower end of the Z sliding plate 2 at one end, and a reading head fixing plate 72 fixedly connected to the other end of the L-shaped fixing plate 71;
the reading head 6 fixes the other end of the reading head fixing plate 72 and abuts against the grating ruler 53.
Adopt above-mentioned fixed knot to construct and can satisfy reading head 6 and grating chi 53's relative design to connect reading head 6 through connecting plate 7 and make reading head 6 rigidity better, move the operation more stable.
In this embodiment, when the Z sliding plate 2 is located at the lowest position, the reading head 6 corresponds to the zero position of the grating scale 53; when the Z slide 2 is located at the highest position, the reading head 6 corresponds to three-quarters to four-fifths of the scale of the grating ruler 53.
The length of grating scale 53 of this embodiment is greater than the displacement of reading head 6, is favorable to improving the degree precision to prevent that reading head 6 from surpassing the grating scale 53 scope when moving along with Z slide 2 transfinites.
The embodiment has high rigidity, high precision and stable operation.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present embodiments. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the embodiments. Thus, the present embodiments are not intended to be limited to the embodiments shown herein but are to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (4)
1. A grating ruler mounting structure is used on a numerical control machine tool, part of parts of the numerical control machine tool comprise a base (1), a Z sliding plate (2) and an X sliding block connecting seat (3), the Z sliding plate (2) is connected with the base (1) in a sliding mode through a guide rail pair, the X sliding block connecting seat (3) is fixedly connected with the base (1), the Z sliding plate (2) and the X sliding block connecting seat (3) are vertically arranged, a marble square ruler (4) is fixed outside the X sliding block connecting seat (3) and is parallel to the Z sliding plate, and the grating ruler mounting structure is characterized by comprising a grating ruler component (5), a reading head (6) and a connecting plate (7);
the grating ruler component (5) is fixed on the marble square ruler (4) and is axially parallel to the marble square ruler (4);
the reading head (6) is fixed on the connecting plate (7), and the connecting plate (7) is fixed on the side surface of the lower end of the Z sliding plate (2);
the reading head (6) and the grating ruler component (5) are arranged oppositely, and the reading head (6) moves along the arrangement direction of the grating ruler component (5).
2. The mounting structure of a grating ruler as claimed in claim 1, wherein the grating ruler assembly (5) comprises a first fixing frame (51) and a second fixing frame (52) connected to the side of the marble square ruler (4) and a grating ruler (53), the first fixing frame (51) and the second fixing frame (52) are fixed at the upper and lower ends of the grating ruler (53) along the length direction of the grating ruler (53), and the reading head (6) corresponds to the grating ruler (53).
3. A mounting structure of a grating ruler according to claim 2, wherein the connecting plate (7) comprises an L-shaped fixing plate (71) fixed on the lower end side of the Z-shaped sliding plate (2) at one end and a reading head fixing plate (72) fixedly connected with the other end of the L-shaped fixing plate (71);
the reading head (6) is fixed at the other end of the reading head fixing plate (72) and is abutted against the grating ruler (53).
4. A mounting structure of a grating ruler according to claim 3, characterized in that the reading head (6) corresponds to the zero position of the grating ruler (53) when the Z sliding plate (2) is at the lowest position; when the Z sliding plate (2) is located at the highest position, the reading head (6) corresponds to three quarters to four fifths of the scale of the grating ruler (53).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021517930.1U CN213004159U (en) | 2020-07-28 | 2020-07-28 | Mounting structure of grating ruler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021517930.1U CN213004159U (en) | 2020-07-28 | 2020-07-28 | Mounting structure of grating ruler |
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| CN213004159U true CN213004159U (en) | 2021-04-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111730415A (en) * | 2020-07-28 | 2020-10-02 | 北京博鲁斯潘精密机床有限公司 | Mounting structure of grating ruler |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111730415A (en) * | 2020-07-28 | 2020-10-02 | 北京博鲁斯潘精密机床有限公司 | Mounting structure of grating ruler |
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