CN220761903U - Cooling structure of numerical control machine tool grating ruler - Google Patents
Cooling structure of numerical control machine tool grating ruler Download PDFInfo
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- CN220761903U CN220761903U CN202322610076.3U CN202322610076U CN220761903U CN 220761903 U CN220761903 U CN 220761903U CN 202322610076 U CN202322610076 U CN 202322610076U CN 220761903 U CN220761903 U CN 220761903U
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- 238000001816 cooling Methods 0.000 title claims abstract description 49
- 230000003287 optical effect Effects 0.000 claims abstract description 10
- 239000003595 mist Substances 0.000 claims abstract description 8
- 230000000149 penetrating effect Effects 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 abstract description 9
- 238000006073 displacement reaction Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 241000606706 Chione <angiosperm> Species 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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Abstract
The application relates to a cooling structure of digit control machine tool grating chi, including grating chi and air feeder. The grating ruler is used for detecting the position of the motion module of the numerical control machine tool, a cooling channel penetrating through the whole length of the grating ruler is arranged on the grating ruler, a slit-shaped air outlet is arranged on the side wall of the cooling channel, and the air outlet corresponds to an optical path of the grating ruler; the air feeder is used for providing compressed air for the cooling channel of the grating ruler, and is communicated with the cooling channel through an air supply pipe. Compressed air enters from the air inlet at one end of the cooling channel and is sprayed out from the slit-shaped air outlet, in the process, the compressed air takes away the heat of part of the grating ruler, and plays a role in air cooling on the grating ruler, so that the grating ruler can keep a relatively constant temperature, and meanwhile, oil mist on the optical path of the grating ruler is blown away, and the accuracy of the measuring result of the grating ruler is further guaranteed.
Description
Technical Field
The application relates to the technical field of numerically-controlled machine tools, in particular to a cooling structure of a grating ruler of a numerically-controlled machine tool.
Background
Grating scales are often used as position detection devices for numerically controlled machine tools. The grating ruler is also called as a grating ruler displacement sensor, and the grating ruler measures the displacement of an object through an optical principle and converts the displacement into a digital signal for processing and control. The grating ruler has the advantages of high resolution, high precision, high stability and the like, can be used for detecting linear displacement or angular displacement, and can be used for realizing high-precision measurement and control of machine tool movement.
The numerically-controlled machine tool can generate a large amount of heat during operation, and the heat can be conducted to an area near the grating ruler through the machine tool structure, so that the temperature of the grating ruler is increased, and particularly under the condition that a heat source of the numerically-controlled machine tool is close to the grating ruler, the heat generated during operation of the numerically-controlled machine tool is transmitted to the grating ruler in a radiation mode, so that the temperature of the grating ruler is increased rapidly. However, as the temperature of the grating scale increases, the optical elements in the grating scale undergo changes in refractive index due to temperature changes, which may cause changes in the optical interference effects, thereby affecting the accuracy of the measurement results.
Disclosure of Invention
In order to overcome the technical problem that the accuracy of a measuring result is affected due to the fact that the temperature of the grating ruler is increased, the application provides a cooling structure of the grating ruler of the numerical control machine tool.
The application adopts following technical scheme, a cooling structure of digit control machine tool grating chi includes:
the grating ruler is used for detecting the position of the movement module of the numerical control machine tool, a cooling channel penetrating through the whole length of the grating ruler is arranged on the grating ruler, a slit-shaped air outlet is formed in the side wall of the cooling channel, and the air outlet corresponds to an optical path of the grating ruler;
the air feeder is used for providing compressed air for the cooling channel of the grating ruler, the air feeder is communicated with the cooling channel through an air supply pipe, the compressed air enters from an air inlet at one end of the cooling channel and is sprayed out from a slit-shaped air outlet so as to air-cool the grating ruler, and meanwhile oil mist on the optical path of the grating ruler is blown away.
Through adopting above-mentioned technical scheme, the compressed air of air feeder manufacturing gets into the cooling channel of grating chi through the air inlet of grating chi one end, and this compressed air is spouted from slit-shaped gas outlet. In the process, the compressed air takes away the heat of part of the grating ruler, plays a role in air cooling on the grating ruler, so that the grating ruler can keep a relatively constant temperature, and further the accuracy of the measuring result of the grating ruler is ensured.
Because the air feeder provides compressed air and continuously supplies air to the grating ruler, strong air flow can be generated in the process that the compressed air flows through the grating ruler, and oil mist generated during processing can be prevented from entering the grating ruler, so that the detection precision of the grating ruler is affected.
Optionally, the air feeder further comprises an air feeding body connected with the air feeding pipe and an air inlet pipe connected with the air feeding body.
Through adopting above-mentioned technical scheme, the inside air compression mechanism of air feeder of intake-tube connection can let the air feeder absorb the air of different scope, can absorb the air of keeping away from the digit control machine tool.
Optionally, the air inlet pipe and the air supply pipe are both connected to the side surface of the air supply body.
Through adopting above-mentioned technical scheme, supply intake pipe and air supply pipe to set up in the side of air feed body, be favorable to the transport, the installation and the dismantlement of air feeder.
Optionally, the grating ruler comprises a ruler body and fixing structures connected to two ends of the ruler body.
Through adopting above-mentioned technical scheme, set up in the fixed knot at the chi body both ends of grating chi constructs, can play the effect of protection to the chi body.
Optionally, the fixed structure is provided with mutually perpendicular penetrating ruler body mounting holes for being mounted on a numerical control machine tool.
Through adopting above-mentioned technical scheme, grating chi passes through the chi body mounting hole and installs on external equipment, and the ruler body mounting hole of mutually perpendicular setting has satisfied the demand of different installation scenes.
Optionally, the grating ruler further comprises a reading head, the reading head is provided with a sliding block, and a guide rail for the sliding block to slide is arranged on the grating ruler.
Optionally, the air supply machine is an adjustable air compressor and is used for providing constant-temperature, dry and clean compressed air for the grating ruler.
By adopting the technical scheme, the adjustable air compressor can suck air in the surrounding environment and convert the air into high-pressure, dry and clean air through compression.
Optionally, the reading head is provided with a reading head mounting hole and a cable connector.
Through adopting above-mentioned technical scheme, the setting of reading head mounting hole provides the mounted position for the reading head, and the setting of cable connector provides the hookup location for connecting outside cable.
In summary, the technical solution of the embodiments of the present application includes at least one of the following beneficial technical effects:
1. compressed air produced by the air feeder enters a cooling channel of the grating ruler through an air inlet at one end of the grating ruler, and the compressed air is sprayed out from a slit-shaped air outlet. In the process, the compressed air takes away the heat of part of the grating ruler, plays a role in air cooling on the grating ruler, so that the grating ruler can keep a relatively constant temperature, and further the accuracy of a grating ruler measurement result is ensured;
2. because the air feeder provides compressed air and continuously supplies air to the grating ruler, strong air flow can be generated in the process that the compressed air flows through the grating ruler, and oil mist generated during processing can be prevented from entering the grating ruler, so that the detection precision of the grating ruler is affected.
Drawings
Fig. 1 is a schematic diagram showing the overall structure of a cooling structure of a grating ruler of a numerical control machine tool;
fig. 2 is a schematic diagram of a three-dimensional structure of a grating ruler of the cooling structure of the grating ruler of the numerical control machine tool.
Reference numerals illustrate: 10. a grating ruler; 11. an air inlet; 12. an air outlet; 13. a ruler body; 14. a fixed structure; 15. a ruler body mounting hole; 16. a guide rail; 17. a reading head; 18. a reading head mounting hole; 19. a cable connection port; 20. a gas supply machine; 21. a gas supply body; 22. an air supply pipe; 23. and an air inlet pipe.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. Based on the embodiments in the present application, other embodiments obtained by those of ordinary skill in the art under the premise of understanding the inventive concept of the present application are all within the scope of protection of the present application.
It should be noted that, in the embodiment of the present application, directional indications (such as up, down, left, right, front, and rear … …) are referred to, and the directional indications are merely used to explain the relative positional relationship, movement conditions, and the like between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In order to facilitate understanding of the technical scheme of the application, the cooling structure of the numerical control machine tool grating ruler of the application is described in further detail below, but is not taken as a protection scope defined by the application.
Referring to fig. 1, an embodiment of the present application discloses a cooling structure of a grating ruler of a numerical control machine tool, which includes a grating ruler 10 and an air feeder 20. The grating ruler 10 is used for detecting the position of a motion module of the numerical control machine tool, a cooling channel penetrating through the whole length of the grating ruler 10 is arranged on the grating ruler 10, a slit-shaped air outlet 12 is arranged on the side wall of the cooling channel, and the air outlet 12 corresponds to a light path of the grating ruler 10; optionally, the side wall of the cooling channel is provided with a plurality of slit-shaped air outlets 12, wherein one air outlet 12 corresponds to the light path of the grating ruler 10; the air supply machine is used for supplying compressed air to the cooling channel of the grating ruler 10, the compressed air flows to each slit-shaped air outlet 12 on the grating ruler 10, and the design of the slit-shaped air outlets 12 can increase the contact area between the inside of the grating ruler 10 and the compressed air, so that the heat dissipation efficiency is improved. The air feeder 20 is communicated with the cooling channel through an air supply pipe 22, compressed air enters from an air inlet 11 at one end of the cooling channel and is sprayed out from a slit-shaped air outlet so as to air-cool the grating ruler 10, and meanwhile, oil mist on the optical path of the grating ruler 10 is blown away. The length of the air supply pipe 22 can be prolonged or shortened as required, and the air supply body 21 is beneficial to being far away from the numerical control machine under the prolonged condition, so that the air supply body is not influenced by the surrounding thermal environment of the numerical control machine. Alternatively, the air supply machine 20 may adjust the temperature of the output compressed air.
The air feeder also comprises an air supply body connected with the air supply pipe and an air inlet pipe connected with the air supply body. The air supply pipe and the air supply pipe 22 are connected to the side surface of the air supply body 21. The air inlet pipe can be prolonged or shortened as required, and under the prolonged condition, the air inlet 11 of the air inlet pipe can be far away from the numerical control machine tool or the manufacturing workshop so as to absorb clean air.
Referring to fig. 1, the air feeder 20 produces dry, clean compressed air at a constant temperature. Meanwhile, the air supply pipe 22 of the air supply machine 20 is connected to the air inlet 11 at one end of the grating scale 10, compressed air enters the cooling passage of the grating scale 10 through the air inlet 11, and the compressed air is ejected from the slit-shaped air outlet 12. In the process, the compressed air takes away part of heat of the grating ruler 10, and plays a role in air cooling of the grating ruler 10, so that the grating ruler 10 can keep a relatively constant temperature, and further accuracy of a measuring result of the grating ruler 10 is guaranteed.
Because the air supply machine 20 supplies compressed air and continuously supplies air to the grating ruler 10, strong air flow can be generated in the process that the compressed air flows through the grating ruler 10, and impurities such as oil mist generated during processing can be prevented from entering the grating ruler 10, so that the detection precision of the grating ruler 10 is affected.
Referring to fig. 2, the grating scale 10 includes a scale body 13 and fixing structures 14 connected to two ends of the scale body 13, wherein the fixing structures 14 are fixedly connected with the scale body 13. The fixing structure 14 is provided with mutually perpendicular through type ruler body 13 mounting holes for being mounted on external equipment. Optionally, the mounting hole of the ruler body 13 is a round hole for the screw type connecting piece to penetrate and connect. The grating scale 10 is provided with a guide rail 16, and the guide rail 16 is disposed on one side surface of the scale body 13. Preferably, the guide rail 16 is disposed on the bottom surface of the rule 13, and penetrates the entire bottom surface in the longitudinal direction.
The grating ruler 10 further comprises a reading head 17, wherein the reading head 17 is provided with an integrally formed sliding block, and the sliding block can slide on the guide rail 16, so that the reading head 17 is movably connected with the guide rail 16. The reading head 17 is provided with two reading head mounting holes 18 and a cable connection port 19.
The implementation principle of the cooling structure of the grating ruler of the numerical control machine tool is as follows: when the cooling structure of the grating ruler of the numerical control machine works, the air supply body 21 of the air supply machine 20 sucks air far away from the numerical control machine through the air inlet pipe and processes the air into constant-temperature, dry and clean compressed air. The air supply machine 20 delivers the compressed air to the grating ruler 10 through the air supply pipe 22. The compressed air is introduced into the grating scale 10 from the air inlet 11 of the grating scale 10, and then flows out through the slit-shaped air outlet 12 of the grating scale 10. In the process, the compressed air takes away the heat on the grating ruler 10, plays a role in cooling the grating ruler 10, so that the grating ruler 10 can be at a relatively constant temperature, and meanwhile, impurities such as oil mist and the like can be prevented from entering an optical path of the grating ruler 10, and the accuracy of a measuring result of the grating ruler 10 is further ensured.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (8)
1. The utility model provides a cooling structure of digit control machine tool grating chi which characterized in that includes:
the grating ruler (10) is used for detecting the position of the movement module of the numerical control machine tool, a cooling channel penetrating through the whole length of the grating ruler (10) is arranged on the grating ruler (10), a slit-shaped air outlet (12) is arranged on the side wall of the cooling channel, and the air outlet (12) corresponds to the light path of the grating ruler (10);
the air feeder (20) is used for providing compressed air for the cooling channel of the grating ruler (10), the air feeder (20) is communicated with the cooling channel through an air supply pipe (22), the compressed air enters from an air inlet (11) at one end of the cooling channel and is sprayed out from a slit-shaped air outlet (12) so as to air-cool the grating ruler (10), and meanwhile oil mist on an optical path of the grating ruler (10) is blown away.
2. The cooling structure of the numerical control machine tool grating ruler according to claim 1, wherein the air feeder (20) further comprises an air feeding body (21) connected with the air feeding pipe (22) and an air inlet pipe (23) connected with the air feeding body (21).
3. The cooling structure of the numerical control machine tool grating scale according to claim 2, wherein the air inlet pipe (23) and the air supply pipe (22) are both connected to the side face of the air supply body (21).
4. The cooling structure of the grating scale of the numerical control machine tool according to claim 1, wherein the grating scale (10) comprises a scale body (13) and fixing structures (14) connected to two ends of the scale body (13).
5. The cooling structure of the grating ruler of the numerical control machine tool according to claim 4, wherein the fixing structure (14) is provided with mutually perpendicular penetrating ruler body mounting holes (15) for being mounted on the numerical control machine tool.
6. The cooling structure of the grating ruler of the numerical control machine tool according to claim 4, wherein the grating ruler (10) further comprises a reading head (17), the reading head (17) is provided with a sliding block, and a guide rail (16) for sliding the sliding block is arranged on the grating ruler (10).
7. The cooling structure of the grating scale of the numerical control machine tool according to claim 6, characterized in that the air supply machine (20) is an adjustable air compressor for supplying constant temperature, dry, clean compressed air to the grating scale (10).
8. The cooling structure of the grating ruler of the numerical control machine tool according to claim 7, wherein the reading head (17) is provided with a reading head mounting hole (18) and a cable connection port (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322610076.3U CN220761903U (en) | 2023-09-25 | 2023-09-25 | Cooling structure of numerical control machine tool grating ruler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322610076.3U CN220761903U (en) | 2023-09-25 | 2023-09-25 | Cooling structure of numerical control machine tool grating ruler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220761903U true CN220761903U (en) | 2024-04-12 |
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ID=90603218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322610076.3U Active CN220761903U (en) | 2023-09-25 | 2023-09-25 | Cooling structure of numerical control machine tool grating ruler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220761903U (en) |
-
2023
- 2023-09-25 CN CN202322610076.3U patent/CN220761903U/en active Active
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