Grating ruler support

Abstract

The utility model discloses a grating ruler support, which relates to the technical field of grating ruler supports and comprises a plate frame, a grating ruler body is mounted at the top of the plate frame, a protection box is mounted at the top of the plate frame and located on the outer side of the grating ruler body, and a mounting cavity is formed in the protection box. The top of the interior of the mounting cavity is rotatably provided with two gears, the outer sides of the gears are provided with toothed chains, and the bottoms of the toothed chains are fixedly provided with protective flexible steel sheets. When the electronic scanning module moves, the protective flexible steel sheet can drive the toothed chain to rotate on the gear, the protective flexible steel sheet and the electronic scanning module can move together without applying large force, meanwhile, the protective flexible steel sheet can protect the grating ruler body all the time, the grating ruler body is protected, and meanwhile the grating ruler body is prevented from being damaged. And the detection accuracy is not influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of grating scale brackets, and particularly relates to a grating scale bracket. Background Technique

[0002] In the fields of precision measurement and automatic control, gratings are often used as benchmarks and are recognized as the most practical, economical, and reliable technical measures to obtain high precision. Grating scales are widely used in numerical control machine tools due to their advantages such as large detection range, high detection accuracy, and fast response speed. The numerical control system performs machining based on the position information fed back by the grating scale.

[0003] According to a grating scale bracket with the application number 202320699975.2, through the mutual cooperation relationship between the protective steel sheet component and the electronic scanning module component, the electronic scanning module component can drive the protective steel sheet through the connecting drive plate, and at the same time, the device can automatically wind up the protective steel sheet on the rotating drum through the coil spring, achieving the effect that the extended protective steel sheet always protects the surface of the grating scale.

[0004] However, the above grating scale bracket has certain deficiencies. The device winds up the protective steel sheet through the coil spring. However, when the electronic scanning module displaces during the detection of the grating scale, a relatively large displacement force is required to pull the protective steel sheet to displace with it for detection. If the displacement force is insufficient, the protective steel sheet cannot be pulled to unfold, which will instead affect the accuracy of the displacement detection of the electronic scanning module. Moreover, the grating scale needs to be disassembled and repaired regularly or replaced when damaged. The installation and disassembly of the grating scale of the above grating scale bracket are relatively inconvenient and also have certain deficiencies. For this reason, we propose a grating scale bracket. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a grating scale bracket, which solves the problems raised in the above background technique.

[0006] To achieve the above objectives, the utility model is realized through the following technical solutions: A grating scale bracket includes a plate frame. A grating scale body is installed on the top of the plate frame. A protective box is installed on the top of the plate frame and outside the grating scale body. An installation cavity is opened inside the protective box. Two gears are rotatably installed on the top inside the installation cavity. A toothed chain is installed on the outside of the gears. A protective flexible steel sheet is fixedly installed at the bottom of the toothed chain. An electronic scanning module is arranged on one side of the grating scale body. A connecting block is fixedly installed on one side of the electronic scanning module. Plugging slots are opened inside both sides of the connecting block. Limit plugging strips are fixedly installed at both ends of the protective flexible steel sheet. The limit plugging strips cooperate with the plugging slots.

[0007] Preferably, limiting plates are fixedly installed on both sides of the grating scale body. Plug plates are fixedly installed at the tops of both sides of the plate frame. Positioning grooves are formed inside the limiting plates. The positioning grooves cooperate with the plug plates. Slots are formed inside the bottoms of both sides of the protective box. The slots cooperate with the plug plates. A chute is formed inside the protective box and on one side of the slots. A latch is slidably installed inside the chute. A pin hole is formed inside the plug plate. The latch cooperates with the pin hole. A sliding plate is fixedly installed on the outer side of the latch. A spring is installed on the outer side of the latch and on one side of the sliding plate. One end of the latch extends to the outside of the protective box and is fixedly installed with a pulling plate.

[0008] Preferably, a connecting drive plate is arranged at the bottom of the electronic scanning module. A side groove is formed on one side of the protective box. A track groove is formed inside the plate frame. The connecting drive plate cooperates with the track groove.

[0009] Preferably, a rotating shaft that cooperates with the gear is rotatably installed at the top inside the installation cavity.

[0010] Preferably, holes that cooperate with the latch are formed on both sides of the chute inside the protective box. The latch is slidably connected to the protective box.

[0011] Preferably, the sliding plate is slidably connected to the inner wall of the chute. The sliding plate cooperates with the spring.

[0012] The utility model provides a grating scale support, which has the following beneficial effects:

[0013] 1. For this grating scale support, through the cooperation of the protective box, installation cavity, gear, chain, protective flexible steel sheet, electronic scanning module, connecting block, insertion slot and limiting insertion strip, the protective flexible steel sheet is connected to the connecting block through the limiting insertion strip. When the electronic scanning module is displaced, the chain can be driven to rotate on the gear through the protective flexible steel sheet. Without applying a large force, the protective flexible steel sheet can be displaced together with the electronic scanning module, and at the same time, the protective flexible steel sheet can always protect the grating scale body. While protecting the grating scale body, it will not affect the accuracy of its detection.

[0014] 2. For this grating scale support, through the cooperation of the limiting plate, plug plate, positioning groove, slot, chute, latch, pin hole, sliding plate, spring and pulling plate, when it is necessary to disassemble the grating scale body and the protective box, only need to pull the pulling plate laterally to pull out the latch from the pin hole to release the limit on the plug plate, and then the protective box can be disassembled from the outside of the grating scale body. At the same time, by pulling out the limiting insertion strip from above the insertion slot, the protective box can be disassembled. After the protective box is disassembled, the limit on the limiting plate is released, and then the grating scale body can be disassembled from the plate frame. The disassembly is convenient and fast. Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a cross-sectional view of the present utility model;

[0017] Figure 3 is a top cross-sectional view of the protective box of the present utility model;

[0018] Figure 4 is of the present utility model Figure 2 an enlarged view of part A in;

[0019] Figure 5 is of the present utility model Figure 2 an enlarged view of part B in.

[0020] In the figure: 1, plate frame; 2, grating ruler body; 3, protective box; 4, installation cavity; 5, gear; 6, tooth chain; 7, protective flexible steel sheet; 8, electronic scanning module; 9, connection block; 10, insertion slot; 11, limit insertion bar; 12, connection drive plate; 13, side slot; 14, track slot; 15, limit plate; 16, insertion plate; 17, positioning slot; 18, slot; 19, sliding slot; 20, insertion pin; 21, pin hole; 22, sliding plate; 23, spring; 24, pull plate. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0022] Please refer to Figures 1 to 5 , the present utility model provides a technical solution: a grating ruler bracket, including a plate frame 1, a grating ruler body 2 is installed on the top of the plate frame 1, a protective box 3 is installed on the top of the plate frame 1 and outside the grating ruler body 2, an installation cavity 4 is opened inside the protective box 3, two gears 5 are rotatably installed on the top inside the installation cavity 4, a rotating shaft cooperating with the gear 5 is rotatably installed on the top inside the inner side of the installation cavity 4, a tooth chain 6 is installed outside the gear 5, a protective flexible steel sheet 7 is fixedly installed at the bottom of the tooth chain 6, an electronic scanning module 8 is arranged on one side of the grating ruler body 2, a connection block 9 is fixedly installed on one side of the electronic scanning module 8, insertion slots 10 are opened inside both sides of the connection block 9, limit insertion bars 11 are fixedly installed at both ends of the protective flexible steel sheet 7, the limit insertion bars 11 cooperate with the insertion slots 10, a connection drive plate 12 is arranged at the bottom of the electronic scanning module 8, a side slot 13 is opened on one side of the protective box 3, a track slot 14 is opened inside the plate frame 1, and the connection drive plate 12 cooperates with the track slot 14.

[0023] Both sides of the bottom of the plate frame 1 and both sides of the top of the protection box 3 are provided with fixing ears, and bolt holes are opened inside the fixing ears, and it can be fixedly installed at a specified position through bolts.

[0024] Limit plates 15 are fixedly installed on both sides of the grating ruler body 2. Plug plates 16 are fixedly installed on the tops of both sides of the plate frame 1. Positioning grooves 17 are opened inside the limit plates 15, and the positioning grooves 17 cooperate with the plug plates 16. Slots 18 are opened inside the bottoms of both sides of the protection box 3, and the slots 18 cooperate with the plug plates 16. A chute 19 is opened inside the protection box 3 and on one side of the slot 18. A plug pin 20 is slidably installed inside the chute 19. Holes cooperating with the plug pin 20 are opened on both sides of the chute 19 inside the protection box 3. The plug pin 20 is slidably connected to the protection box 3. A pin hole 21 is opened inside the plug plate 16, and the plug pin 20 cooperates with the pin hole 21. A slide plate 22 is fixedly installed on the outer side of the plug pin 20. A spring 23 is installed on the outer side of the plug pin 20 and on one side of the slide plate 22. The slide plate 22 is slidably connected to the inner wall of the chute 19, and the slide plate 22 cooperates with the spring 23. One end of the plug pin 20 extends to the outside of the protection box 3 and is fixedly installed with a pull plate 24.

[0025] In summary, for this grating ruler support, when in use, when the electronic scanning module 8 is displaced, the toothed chain 6 can be driven to rotate on the gear 5 through the protective flexible steel sheet 7. Without applying a large force, the protective flexible steel sheet 7 can be displaced together with the electronic scanning module 8, and at the same time, the protective flexible steel sheet 7 can always protect the grating ruler body 2. While protecting the grating ruler body 2, it will not affect the accuracy of its detection. When it is necessary to disassemble the grating ruler body 2 and the protection box 3, only need to laterally pull the pull plate 24 to pull out the plug pin 20 from the pin hole 21 to release the limit on the plug plate 16, and then the protection box 3 can be disassembled from the outside of the grating ruler body 2. At the same time, pulling out the limit insertion strip 11 from above the insertion slot 10 can disassemble the protection box 3. At the same time, after the protection box 3 is disassembled, the limit on the limit plate 15 is released, and then the grating ruler body 2 can be disassembled from the plate frame 1. The disassembly is convenient and fast.

[0026] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A grating ruler bracket, characterized in that: include: A plate frame (1), a grating ruler body (2) is installed on the top of the plate frame (1), and a protective box (3) is installed on the top of the plate frame (1) and outside the grating ruler body (2); A protective box (3), wherein an installation cavity (4) is provided inside the protective box (3), two gears (5) are rotatably installed at the top of the installation cavity (4), a toothed chain (6) is installed on the outer side of the gears (5), and a protective flexible steel sheet (7) is fixedly installed at the bottom of the toothed chain (6); Wherein, an electronic scanning module (8) is provided on one side of the grating ruler body (2), a connecting block (9) is fixedly installed on one side of the electronic scanning module (8), plug-in slots (10) are provided inside both sides of the connecting block (9), and limiting inserts (11) are fixedly installed on both ends of the protective flexible steel sheet (7), and the limiting inserts (11) cooperate with the plug-in slots (10).

2. The grating ruler bracket according to claim 1, characterized in that: Limit plates (15) are fixedly installed on both sides of the grating ruler body (2), plug plates (16) are fixedly installed on the tops of both sides of the plate frame (1), positioning grooves (17) are provided inside the limit plates (15), and the positioning grooves (17) cooperate with the plug plates (16), and slots (18) are provided inside the bottoms of both sides of the protective box (3), and the slots (18) cooperate with the plug plates (16), and the interior of the protective box (3) and on one side of the slots (18) are opened. A slide groove (19) is provided, a latch (20) is slidably installed inside the slide groove (19), a pin hole (21) is opened inside the plug plate (16), the latch (20) cooperates with the pin hole (21), a slide plate (22) is fixedly installed on the outside of the latch (20), a spring (23) is installed on the outside of the latch (20) and on one side of the slide plate (22), and one end of the latch (20) extends to the outside of the protective box (3) and is fixedly installed with a pull plate (24).

3. The grating ruler bracket according to claim 1, characterized in that: A connecting transmission plate (12) is provided at the bottom of the electronic scanning module (8), a side groove (13) is provided on one side of the protective box (3), a track groove (14) is provided inside the plate frame (1), and the connecting transmission plate (12) cooperates with the track groove (14).

4. The grating ruler bracket according to claim 1, characterized in that: A rotating shaft cooperating with the gear (5) is rotatably mounted on the top of the inner side of the mounting cavity (4).

5. The grating ruler bracket according to claim 1, characterized in that: Holes cooperating with the latch (20) are provided inside the protection box (3) and on both sides of the slide groove (19), and the latch (20) is slidably connected to the protection box (3).

6. The grating ruler bracket according to claim 2, characterized in that: The slide plate (22) is slidably connected to the inner wall of the slide groove (19), and the slide plate (22) cooperates with the spring (23).

Images