Protective device for grating ruler

Abstract

The utility model relates to a protection device for a grating ruler, and aims to solve the problems that when a current grating ruler is fixed on some machines to monitor the machines, a large number of chippings are possibly accumulated on a sliding surface of the grating ruler due to long-term use of the grating ruler, normal sliding of a reading head is affected, the machines cannot be accurately monitored, and the working efficiency is high. The grating ruler comprises a grating ruler body and end covers detachably installed at the two ends of the grating ruler body, guide grooves are formed in the centers of the top ends of the grating ruler body and the two end covers, and reading assemblies used for reading are arranged in the guide grooves in a sliding mode. The reading assembly comprises a reading head and a sliding driving assembly arranged in the guide groove in a sliding mode, chippings accumulated in the guide groove can be pushed out, so that the chippings accumulated on the surface of the grating ruler are reduced, the sliding smoothness of the reading head is improved, a machine can be conveniently and accurately monitored, and the influence on a monitoring result is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of grating rulers, in particular to a protective device for grating rulers. Background Art

[0002] Grating ruler, also known as grating ruler displacement sensor (grating ruler sensor), is a measurement feedback device that works based on the optical principle of grating. Grating ruler is often used in closed-loop servo systems of CNC machine tools. It can be used to detect linear displacement or angular displacement. Its measurement output signal is a digital pulse, which has the characteristics of large detection range, high detection accuracy and fast response speed.

[0003] However, when using a grating ruler, it is found that when the grating ruler is fixed on some machines for monitoring the machines, long-term use may cause debris to accumulate on the sliding surface of the grating ruler, affecting the normal sliding of the reading head and making it impossible to accurately monitor the machine. Therefore, a protective device for the grating ruler is particularly needed.

[0004] However, after long-term use of the existing grating ruler, the staff found that when the grating ruler is fixed on some machines for monitoring the machine, a large amount of debris may accumulate on the sliding surface of the grating ruler due to long-term use, affecting the normal sliding of the reading head, making it impossible to accurately monitor the machine, and seriously affecting the monitoring results. In view of this, we propose a protective device for grating rulers. Utility Model Content

[0005] The purpose of the utility model is to overcome the shortcomings of the prior art, meet the actual needs, and provide a protective device for a grating ruler to solve the technical problem that when the current grating ruler is fixed on some machines to monitor the machines, a large amount of debris may be accumulated on the sliding surface of the grating ruler due to long-term use, affecting the normal sliding of the reading head, making it impossible to accurately monitor the machine, and seriously affecting the monitoring results.

[0006] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is: designing a protective device for a grating ruler, including a grating ruler body and end covers detachably installed at both ends of the grating ruler body;

[0007] A guide groove is centrally provided at the top of the grating ruler body and the two end covers, and a reading component for reading is slidably arranged in the guide groove;

[0008] The reading component includes a reading head and a sliding drive component slidably arranged in the guide groove, the sliding drive component includes a T-shaped slider, the T-shaped slider is slidably arranged in the guide groove, and both ends of the T-shaped slider are provided with mounting grooves, a driving mechanism is fixedly installed between the two sides of the mounting groove, and both ends of the T-shaped slider are fixedly installed with a pushing component that cooperates with the driving mechanism to push the debris in the guide groove, and the pushing component abuts the bottom of the guide groove.

[0009] Preferably, the driving mechanism comprises a servo motor, the servo motor is fixedly mounted on one side of the mounting slot, and a driving wheel rotatably disposed in the mounting slot is fixedly mounted on one end of a motor shaft of the servo motor.

[0010] Preferably, two protective covers are symmetrically constructed at both ends of the T-shaped slider, and the protective covers are arranged on the servo motor.

[0011] Preferably, the pusher assembly comprises a pusher plate constructed on the top of one side of the T-shaped slider, the pusher plate is slidably arranged in the guide groove, and a rubber strip is bonded and fixedly arranged on one end of the pusher plate away from the T-shaped slider.

[0012] Preferably, a support plate is constructed on one side of the bottom end of the push plate, and the support plate is constructed at the bottom of one side of the T-shaped sliding block.

[0013] Preferably, the push plate and the support plate are respectively provided with a matching groove A and a matching groove B centered on one end facing the T-shaped slider to match the two driving wheels, and a gap cleaning key is centrally constructed on one side of the matching groove B to be inserted between the two driving wheels.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model uses a T-shaped slider with the help of two driving mechanisms to push out the debris accumulated in the guide groove by two pushing components, thereby reducing the debris accumulated on the surface of the grating scale, improving the smoothness of the sliding of the reading head, facilitating accurate monitoring of the machine, and reducing the impact on the monitoring results.

[0016] 2. The utility model completes the pushing of debris in the guide groove through the pushing assembly. When pushing the debris out, the pushing plate provided with a rubber strip is supported by the support plate to complete the pushing of the debris in the guide groove. When pushing the debris out, the two driving wheels rotate in the matching groove A and the matching groove B, and the residual debris between the two driving wheels is cleaned through the gap cleaning key, thereby further improving the sliding stability of the reading head. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the reading component in the utility model;

[0019] Figure 3 It is a schematic diagram of the splitting of the reading component in the utility model;

[0020] Figure 4 It is a structural schematic diagram of the material pushing component in the utility model.

[0021] In the figure: 1. Grating ruler body; 2. End cover; 3. Guide groove; 4. Reading assembly; 401. Reading head; 5. Sliding drive assembly; 501. T-type slider; 502. Servo motor; 503. Driving wheel; 504. Protective cover; 6. Pushing assembly; 601. Pushing plate; 602. Rubber strip; 603. Matching groove A; 604. Matching groove B; 605. Gap cleaning key; 606. Support plate. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0023] Example 1: A protective device for a grating ruler, see Figure 1 , Figure 2 , Figure 3 , including a grating ruler body 1 and end caps 2 detachably mounted at both ends of the grating ruler body 1, the tops of the grating ruler body 1 and the two end caps 2 are centrally provided with a guide groove 3, and a reading component 4 for reading is slidably arranged in the guide groove 3, the reading component 4 includes a reading head 401 and a sliding drive component 5 slidably arranged in the guide groove 3, the sliding drive component 5 includes a T-shaped slider 501, the T-shaped slider 501 is slidably arranged in the guide groove 3, and both ends of the T-shaped slider 501 are provided with mounting grooves A driving mechanism is fixedly installed between the two sides of the installation groove, and both ends of the T-shaped slider 501 are fixedly installed with a pushing assembly 6 that cooperates with the driving mechanism to push out the debris in the guide groove 3. The pushing assembly 6 abuts against the bottom of the guide groove 3. With the help of the two driving mechanisms, the T-shaped slider 501 pushes out the debris accumulated in the guide groove 3 by two pushing assemblies 6, thereby reducing the debris accumulated on the surface of the grating scale, improving the smoothness of the sliding of the reading head 401, facilitating its accurate monitoring of the machine, and reducing the impact on the monitoring results.

[0024] For further information, see Figure 3In order to achieve stable sliding of the reading head 401, the driving mechanism includes a servo motor 502, which is fixedly installed on one side of the mounting groove, and one end of the motor shaft of the servo motor 502 is fixedly installed with a driving wheel 503 rotatably arranged in the mounting groove. Both ends of the T-shaped slider 501 are symmetrically constructed with two protective covers 504, and the protective covers 504 are covered on the servo motor 502. The driving wheel 503 is driven to rotate by the servo motor 502 to push the T-shaped slider 501 to slide in the guide groove 3, thereby achieving stable sliding of the reading head 401.

[0025] Further, see Figure 3 , Figure 4 In order to further improve the sliding stability of the reading head 401, the push assembly 6 includes a push plate 601 constructed on the top of one side of the T-shaped slider 501, the push plate 601 is slidably set in the guide groove 3, and the end of the push plate 601 away from the T-shaped slider 501 is bonded and fixed with a rubber strip 602, one side of the bottom end of the push plate 601 is constructed with a support plate 606, and the support plate 606 is constructed at the bottom of one side of the T-shaped slider 501, and the push plate 601 and the end of the support plate 606 facing the T-shaped slider 501 are respectively centrally opened with matching grooves A6 for matching the two driving wheels 503 03 and matching groove B604, a gap cleaning key 605 inserted between the two driving wheels 503 is centrally constructed on one side of the matching groove B604, and the debris in the guide groove 3 is pushed out through the pushing assembly 6. When pushing out the debris, the pushing plate 601 provided with a rubber strip 602 is supported by the support plate 606 to push out the debris in the guide groove 3. When pushing out the debris, the two driving wheels 503 rotate in the matching groove A603 and the matching groove B604, and the residual debris between the two driving wheels 503 is cleaned through the gap cleaning key 605, thereby further improving the sliding stability of the reading head 401.

[0026] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A protective device for a grating ruler, characterized in that: It comprises a grating ruler body (1) and end covers (2) detachably mounted on both ends of the grating ruler body (1); A guide groove (3) is centrally provided at the top ends of the grating ruler body (1) and the two end covers (2), and a reading component (4) for reading is slidably arranged in the guide groove (3); The reading component (4) comprises a reading head (401) and a sliding drive component (5) slidably arranged in the guide groove (3), the sliding drive component (5) comprises a T-shaped slider (501), the T-shaped slider (501) is slidably arranged in the guide groove (3), and both ends of the T-shaped slider (501) are provided with mounting grooves, a driving mechanism is fixedly installed between the two sides of the mounting groove, and a pushing component (6) is fixedly installed at both ends of the T-shaped slider (501) to cooperate with the driving mechanism to push out debris in the guide groove (3), and the pushing component (6) is abutted against the bottom of the guide groove (3).

2. The protective device for a grating ruler according to claim 1, characterized in that: The driving mechanism comprises a servo motor (502), the servo motor (502) is fixedly mounted on one side of the mounting slot, and a driving wheel (503) rotatably arranged in the mounting slot is fixedly mounted on one end of the motor shaft of the servo motor (502).

3. The protective device for a grating ruler according to claim 2, characterized in that: Two protective covers (504) are symmetrically constructed at both ends of the T-shaped slide block (501), and the protective covers (504) are arranged on the servo motor (502).

4. The protective device for a grating ruler according to claim 2, characterized in that: The pusher assembly (6) comprises a pusher plate (601) constructed on the top of one side of the T-shaped slider (501), the pusher plate (601) is slidably arranged in the guide groove (3), and a rubber strip (602) is bonded and fixedly arranged on one end of the pusher plate (601) away from the T-shaped slider (501).

5. The protective device for a grating ruler according to claim 4, characterized in that: A support plate (606) is constructed on one side of the bottom end of the push plate (601), and the support plate (606) is constructed at the bottom of one side of the T-shaped sliding block (501).

6. The protective device for a grating ruler according to claim 5, characterized in that: The push plate (601) and the support plate (606) are respectively provided with a matching groove A (603) and a matching groove B (604) centered on one end facing the T-shaped slider (501) for matching the two driving wheels (503), and a gap cleaning key (605) is centrally constructed on one side of the matching groove B (604) for inserting into the gap between the two driving wheels (503).

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