Anti-drop linear grating ruler

Abstract

The utility model relates to the technical field of grating rulers, and discloses an anti-drop linear grating ruler, which comprises a measuring basis, a plurality of mask blocks are fixedly connected to the top of the measuring basis, a supporting assembly is arranged outside the measuring basis, a shell is slidably connected to the outside of the supporting assembly, and the shell is fixedly connected with the measuring basis. The bottom of the inner wall of the shell is fixedly connected with a photocell pack, the left side and the right side of the measuring datum are both slidably connected with a protection assembly, two fixing blocks are fixedly connected into the protection assembly, the close sides of the two fixing blocks on the same side are fixedly connected with a connecting rod, and the outer portion of the connecting rod is slidably connected with two sliding blocks. And an elastic assembly is arranged outside the connecting rod, a connecting shaft is fixedly connected to the bottom of the sliding block, and a rotating assembly is arranged outside the connecting shaft. According to the anti-falling device, in the using process of the device, the spring provides elastic force to resist impact force on the sliding block, and the problem that part of devices are insufficient in anti-falling capacity is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of grating rulers, in particular to a drop-proof linear grating ruler. Background Art

[0002] Linear grating ruler is a kind of precision measuring equipment, which is usually used in industrial manufacturing and precision machining to measure the position and moving distance of objects. It is based on optical principles and uses the periodic structure of grating to achieve high-precision position measurement. Linear grating ruler usually consists of two parts: grating ruler body and reading head.

[0003] After searching: Chinese patent publication number: CN215432808U, it relates to the field of linear grating rulers, and discloses a linear grating ruler with simple structure, low cost, easy installation and high measurement efficiency. The utility model includes a grating ruler arranged on a machine tool and a reading head device located above the grating ruler. An incremental grating scale group and an absolute grating scale group are arranged side by side on the front of the grating ruler. The incremental grating scale group includes a number of equally spaced incremental scale lines arranged neatly, and the absolute grating scale group includes a number of unequally spaced absolute scale lines arranged neatly and encoding information according to certain rules. The reading head device is arranged on the moving device of the machine tool, and the grating ruler is parallel to the moving direction of the moving device. The reading head device is provided with a sensor 1 that matches the incremental scale and a sensor 2 that matches the absolute scale, and the back of the grating ruler is provided with adhesive. The utility model can be applied to the technical field of measuring equipment.

[0004] The above patent embodiment records that "the utility model includes a grating ruler 1 provided on a machine tool and a reading head device 2 located above the grating ruler 1, an incremental grating line group and an absolute grating line group are arranged side by side on the front of the grating ruler 1, the incremental grating line group includes a number of equally spaced incremental scale lines arranged neatly, the absolute grating line group includes a number of absolutely scale lines arranged neatly with non-equal spacing and encoding information according to certain rules, and the reading head device 2 is arranged on the moving device of the machine tool", which can achieve the advantages of simple structure, low cost, easy installation and high measurement efficiency, but it cannot protect against falling in special circumstances, which may easily cause damage to the device. Therefore, in view of the above-mentioned deficiencies, a new anti-fall linear grating ruler is proposed. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a drop-proof linear grating ruler, aiming to improve the problem that some devices have insufficient drop-proof capabilities.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A drop-proof linear grating ruler comprises a measuring reference, wherein a plurality of mask blocks are fixedly connected to the top of the measuring reference, a supporting assembly is arranged outside the measuring reference, holes are opened on both the left and right sides of the measuring reference, a shell is slidably connected to the outside of the supporting assembly, a light source interface is fixedly connected to the top of the shell, a condenser is fixedly connected to the inner wall of the shell, a scanning mask is fixedly connected to the inside of the shell, a plurality of masks are fixedly connected to the bottom of the scanning mask, a photocell group is fixedly connected to the bottom of the inner wall of the shell, a protective assembly is slidably connected to the left and right sides of the measuring reference, two fixed blocks are fixedly connected to the inside of the protective assembly, a connecting rod is fixedly connected to the adjacent sides of the two fixed blocks on the same side, two sliding blocks are slidably connected to the outside of the connecting rod, an elastic assembly is arranged outside the connecting rod, a connecting shaft is fixedly connected to the bottom of the sliding block, and a rotating assembly is arranged outside the connecting shaft.

[0008] Furthermore, the protection component includes a rubber protective shell, the exterior of the rubber protective shell is slidably connected to the interior of the measurement reference, and the exterior of the rubber protective shell is in contact with the inner wall of the hole.

[0009] Furthermore, the elastic component includes a spring, the spring is sleeved on the outside of the connecting rod, one end of the spring is fixedly connected to the outer side of the sliding block, and the other end of the spring is fixedly connected to the outer side of the fixed block.

[0010] Furthermore, the rotating assembly includes four circular rings, two support rods, and a rotating shaft, the inner walls of the circular rings are rotatably connected to the outside of the connecting shaft, the adjacent sides of the two diagonal circular rings are fixedly connected to the outside of the support rods, and the outside of the rotating shaft is rotatably connected to the inside of the two support rods.

[0011] Furthermore, the exteriors of a plurality of the fixing blocks are fixedly connected to the bottom of the inner wall of the rubber protective shell, and the exteriors of another plurality of the fixing blocks are fixedly connected to the bottom of the measurement reference.

[0012] Furthermore, the support assembly includes two connection blocks and a base, the exteriors of the two connection blocks are fixedly connected to the exterior of the measurement reference, and the exterior left and right sides of the base are respectively fixed to adjacent sides of the two connection blocks.

[0013] The utility model has the following beneficial effects:

[0014] In the utility model, with the coordinated use of structures such as the connecting rod, the sliding block, the spring, and the connecting shaft, the device can provide elastic force through the spring to counteract the impact force on the sliding block during use, thereby solving the problem of insufficient anti-fall ability of some devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional diagram of a drop-proof linear grating ruler proposed by the utility model;

[0016] Figure 2 This is a cross-sectional view of the shell structure of a drop-proof linear grating ruler proposed by the utility model;

[0017] Figure 3 The utility model provides a schematic diagram of the connecting rod structure of a drop-proof linear grating ruler.

[0018] Legend:

[0019] 1. Measuring reference; 2. Mask block; 3. Connecting block; 4. Base; 5. Hole; 6. Outer shell; 7. Light source interface; 8. Condenser; 9. Scanning mask; 10. Mask; 11. Photocell group; 12. Rubber protective shell; 13. Fixed block; 14. Connecting rod; 15. Sliding block; 16. Spring; 17. Connecting shaft; 18. Ring; 19. Support rod; 20. Rotating shaft. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Reference Figure 1 - Figure 3The utility model provides an embodiment: a drop-proof linear grating ruler, including a measuring reference 1, a plurality of mask blocks 2 are fixedly connected to the top of the measuring reference 1, which can block part of the light to form a dark area, and a support assembly is arranged outside the measuring reference 1 to support the sliding of the external structure, and the support assembly includes two connecting blocks 3 and a base 4, the outside of the two connecting blocks 3 is fixedly connected to the outside of the measuring reference 1, and the left and right sides of the outside of the base 4 are respectively fixed to the adjacent sides of the two connecting blocks 3, and the left and right sides of the measuring reference 1 are provided with holes 5 to facilitate the movement of the internal structure, and the support assembly includes two connecting blocks 3 and a base 4. The outer part of the component is slidably connected to a shell 6. In order to protect the operation of the internal structure and maintain stability, a light source interface 7 is fixedly connected to the top of the shell 6 to provide light for the device. A condenser 8 is fixedly connected to the inner wall of the shell 6 to convert oblique light into a straight line. A scanning mask 9 is fixedly connected to the inside of the shell 6 to convert light into an optical signal. A plurality of masks 10 are fixedly connected to the bottom of the scanning mask 9. A photocell group 11 is fixedly connected to the bottom of the inner wall of the shell 6 to receive optical signals. Protective components are slidably connected to the left and right sides of the measuring reference 1 to protect the device. The protective component includes a rubber protective shell 12, the outer portion of the rubber protective shell 12 is slidably connected to the inner portion of the measuring reference 1, the outer portion of the rubber protective shell 12 contacts the inner wall of the hole 5, the inner portion of the protective component is fixedly connected to two fixed blocks 13, the adjacent sides of the two fixed blocks 13 on the same side are fixedly connected to a connecting rod 14 to provide a base point for the external sliding structure, the outer portion of the connecting rod 14 is slidably connected to two sliding blocks 15 that can slide on the connecting rod 14, the outer portion of the connecting rod 14 is provided with an elastic component to provide a protective function for the device, the elastic component includes a spring 16, the spring 1 6 is sleeved on the outside of the connecting rod 14, one end of the spring 16 is fixedly connected to the outside side of the sliding block 15, the other end of the spring 16 is fixedly connected to the outside side of the fixed block 13, the bottom of the sliding block 15 is fixedly connected with a connecting shaft 17, and a rotating component is arranged on the outside of the connecting shaft 17. The rotating component includes four rings 18, two support rods 19, and a rotating shaft 20. The inner wall of the ring 18 is rotatably connected to the outside of the connecting shaft 17, the adjacent sides of the two diagonal rings 18 are fixedly connected to the outside of the support rod 19, and the outside of the rotating shaft 20 is rotatably connected to the inside of the two support rods 19.

[0022] Compared with some existing technologies, the above content enables the device to provide elastic force through the spring 16 to resist the impact force on the sliding block 15 during use, thereby solving the problem of insufficient anti-fall ability of some devices.

[0023] Working principle: First, install the device in a suitable position, and use the connecting block 3 to firmly connect the measurement reference 1 and the base 4. The shell 6 can slide on the outside of the base 4, and the light source interface 7 is connected to the circuit. The light source interface 7 will emit light and hit the top of the condenser 8, which can refract the light downward, thereby refracting the light downward along a straight line. The light passes through the scanning mask 9 but the multiple masks 10 cannot penetrate, so that the light remains refracted through the gap. The measurement reference 1 slides inside the shell 6, and multiple mask blocks 2 are fixed on the measurement reference 1. When the shell 6 slides outside the measurement reference 1, the mask block 2 will refract the signal of the light spot. The signal is received, so the photocell group 11 can receive the optical signal, so different optical codes can be generated at different speeds and distances, so the moving data is converted into a pulse signal, rubber protective shells 12 are sliding on both sides of the device, a plurality of fixed blocks 13 are fixed inside the rubber protective shell 12, a connecting rod 14 is fixed between two fixed blocks 13, and a sliding block 15 slides outside the connecting rod 14. When encountering an impact, the rubber protective shell 12 will receive the impact force. In this process, the spring 16 will store elastic force to provide elastic force for the sliding block 15, thereby providing support force for the two support rods 19, thereby counteracting the impact force on the device.

[0024] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A drop-proof linear grating ruler, comprising a measuring reference (1), characterized in that: The top of the measuring reference (1) is fixedly connected to a plurality of mask blocks (2); a support assembly is arranged outside the measuring reference (1); holes (5) are provided on both left and right sides of the measuring reference (1); a housing (6) is slidably connected to the outside of the support assembly; a light source interface (7) is fixedly connected to the top of the housing (6); a condenser (8) is fixedly connected to the inner wall of the housing (6); a scanning mask (9) is fixedly connected to the inside of the housing (6); a plurality of masks (10) are fixedly connected to the bottom of the scanning mask (9); A photocell group (11) is fixedly connected to the bottom of the inner wall, and protective components are slidably connected to the left and right sides of the measuring reference (1), and two fixed blocks (13) are fixedly connected inside the protective component. A connecting rod (14) is fixedly connected to the adjacent side of the two fixed blocks (13) on the same side, and two sliding blocks (15) are slidably connected to the outside of the connecting rod (14). An elastic component is arranged outside the connecting rod (14), and a connecting shaft (17) is fixedly connected to the bottom of the sliding block (15), and a rotating component is arranged outside the connecting shaft (17).

2. The drop-proof linear grating ruler according to claim 1, characterized in that: The protective component comprises a rubber protective shell (12), the exterior of the rubber protective shell (12) is slidably connected to the interior of the measurement reference (1), and the exterior of the rubber protective shell (12) is in contact with the inner wall of the hole (5).

3. The drop-proof linear grating ruler according to claim 1, characterized in that: The elastic component comprises a spring (16), wherein the spring (16) is sleeved on the outside of the connecting rod (14), one end of the spring (16) is fixedly connected to the outside side of the sliding block (15), and the other end of the spring (16) is fixedly connected to the outside side of the fixed block (13).

4. The drop-proof linear grating ruler according to claim 3, characterized in that: The rotating assembly comprises four circular rings (18), two supporting rods (19), and a rotating shaft (20); the inner wall of the circular ring (18) is rotatably connected to the outside of the connecting shaft (17); the adjacent sides of two diagonally opposite circular rings (18) are fixedly connected to the outside of the supporting rod (19); and the outside of the rotating shaft (20) is rotatably connected to the inside of the two supporting rods (19).

5. The drop-proof linear grating ruler according to claim 2, characterized in that: The exteriors of a plurality of the fixing blocks (13) are fixedly connected to the bottom of the inner wall of the rubber protective shell (12), and the exteriors of another plurality of the fixing blocks (13) are fixedly connected to the bottom of the measuring reference (1).

6. The drop-proof linear grating ruler according to claim 1, characterized in that: The support assembly comprises two connection blocks (3) and a base (4), the exteriors of the two connection blocks (3) are fixedly connected to the exterior of the measurement reference (1), and the exterior left and right sides of the base (4) are respectively fixed to adjacent sides of the two connection blocks (3).

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