A grating measuring device

Abstract

The utility model discloses a grating measuring device, including a fixed seat, a first column, a second column, a power supply and communication line of the first column, a power supply and communication line of the second column, a receiver, and a protector. The fixed seat is installed on the ground, and the first column and the second column are arranged on the fixed seat. The first column and the second column are arranged opposite to each other, the first column is connected to the power supply and communication line of the first column, the second column is connected to the power supply and communication line of the second column, a receiver is installed on the opposite side of the second column to the first column, and the first column and the second column are provided with a bearing-mounted protector on both sides. The protectors on both sides of the first column are arranged in an upper and lower staggered manner, and the protectors on both sides of the second column are arranged in an upper and lower staggered manner. The utility model has a reasonable design; the transmitter on the first column and the receiver on the second column do not need to be installed with a dedicated synchronization line, which is easy to inspect and maintain later.

Description

Technical Field

[0001] The utility model relates to a grating measuring device. Background Art

[0002] In the existing optical measurement technology, grating measurement devices are widely used in various high-precision measurement occasions. However, most traditional grating measurement devices adopt line synchronization, which requires a line to be pulled between the transmitter and the receiver to achieve communication. This not only increases the complexity of installation, but also limits the flexibility and convenience of measurement. In addition, if the grating measurement device is missing or displaced, it cannot be discovered in time, affecting subsequent measurements. Utility Model Content

[0003] The purpose of the utility model is to provide a grating measurement device to solve the above technical problems.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A grating measuring device comprises a fixed seat, a first column, a second column, a power supply and communication line of the first column, a power supply and communication line of the second column, a receiver and a protector. The fixed seat is installed on the ground, and the first column and the second column are arranged on the fixed seat. The first column and the second column are arranged opposite to each other. The first column is connected to the power supply and communication line of the first column, and the second column is connected to the power supply and communication line of the second column. A receiver is installed on the side of the second column opposite to the first column. Protectors installed in bearings are arranged on both sides of the first column and the second column. The protectors on both sides of the first column are arranged alternately up and down, and the protectors on both sides of the second column are arranged alternately up and down.

[0006] Preferably, a transmitter is provided on the side opposite to the second column, and the first channel, the last channel and other channels are installed on the transmitter. The first channel, other channels and the last channel are on the same vertical line. When the transmitter controls the channel to emit light, the first channel and the last channel emit light multiple times, and the frequencies are different. A synchronization channel is provided, and there is no special requirement for the illumination of other channels.

[0007] Preferably, a plurality of pads are installed at the bottom of the fixing seat, and at least three round holes are opened on the pads. Springs are installed at the round holes, and vertical poles are installed on the tops of the springs. Both the springs and the vertical poles are coated with yellow fluorescent powder. When the springs are compressed, the vertical poles can enter the round holes.

[0008] Preferably, the protector includes a disc, a notch, an extension rod, and a screw rod. The disc is connected to the first column and the second column via a bearing. A notch is provided on the disc, and a spring sheet mounted with a screw is provided on the inner side of the notch. The extension rod is connected to the notch, and a screw rod is provided with a threaded connection at the upper and lower ends of the extension rod. A threaded screw rod is provided on one side of the disc, and the screw rod can penetrate the disc and contact the first column and the second column.

[0009] Compared with the prior art, the utility model has the following advantages: the utility model has a reasonable design; the first channel and the last channel at the transmitter on the first column are synchronous channels, so there is no need to install a dedicated synchronization line between the transmitter and the receiver, which is easy to install and improves the flexibility of measurement; the extension rod on the protector can extend outward to avoid damage to the transmitter and the receiver caused by collision, and the extension rod can rotate with the turntable. When protection is needed, the extension rod is perpendicular to the first column and the second column, and when protection is not needed, the extension rod is parallel to the first column and the second column; the spring and the rod at the bottom of the fixed seat can promptly remind people when the first column and the second column are displaced or missing. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the grating measurement device of the utility model.

[0011] Figure 2 It is a schematic diagram of the first column of the grating measurement device of the utility model.

[0012] Figure 3 It is a schematic diagram of a pad of the grating measuring device of the utility model.

[0013] Figure 4 The figure is a schematic diagram of a protector of the grating measuring device of the utility model. DETAILED DESCRIPTION

[0014] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0015] like Figure 1-4As shown, a grating measuring device includes a fixed base 1, a first column 2, a second column 3, a first column power supply communication line 4, a second column power supply communication line 5, a receiver 6, and a protector 7. The fixed base 1 is installed on the ground, and the fixed base 1 is provided with a first column 2 and a second column 3. The first column 2 and the second column 3 are arranged opposite to each other. The first column 2 is connected to the first column power supply communication line 4, and the second column 3 is connected to the second column power supply communication line 5. A receiver 6 is installed on the second column 3 opposite to the first column 2. The receiver receives, amplifies, and shapes infrared light signals and transmits them to a computing unit. The first column 2 and the second column 3 are provided with a bearing-mounted protector 7 on both sides. The protectors 7 on both sides of the first column 2 are staggered up and down, and the protectors 7 on both sides of the second column 3 are staggered up and down. A transmitter is provided on the first column 2 and the second column 3 opposite to each other. The transmitter controls the emission of infrared light sources. The transmitter is provided with a first channel 8, a last channel 10, and other channels 9. The first channel 8, other channels 9, the last channel 10 is on the same vertical line. When the transmitter controls the channel to emit light, the first channel 8 and the last channel 10 emit light multiple times, and the frequencies are not the same. A synchronous channel is provided. There is no special requirement for the other channels 9 to emit light. A plurality of pads 11 are installed at the bottom of the fixing seat 1. At least three round holes 18 are opened on the pads 11. A spring 19 is installed at the round hole 18. A vertical rod 20 is installed on the top of the spring 19. The spring 19 and the vertical rod 20 are coated with yellow fluorescent powder. After the spring 19 is compressed, the vertical rod 20 can enter In the circular hole 18, the protector 7 includes a disc 12, a notch 13, an extension rod 15, and a screw 16. The disc 12 is connected to the first column 2 and the second column 3 via a bearing. The disc 12 is provided with a notch 13, and a spring sheet 14 mounted with a screw is provided on the inner side of the notch 13. The extension rod 15 is connected to the notch 13. The upper and lower ends of the extension rod 15 are provided with a screw 16 connected by a thread. A screw 17 connected by a thread is provided on one side of the disc 12, and the screw 17 can penetrate the disc 12 and contact the first column 2 and the second column 3.

[0016] The working principle of the utility model is as follows: when the transmitter controls the channel to emit light, the first channel and the last channel emit light multiple times, and the frequencies are different. The receiver accepts the light source for synchronization head recognition; there is no special requirement for the emission of other channels, which is mainly used to judge the objects blocked by the middle channel.

[0017] Control algorithm:

[0018] 1. First find the synchronization header of the first channel. If the synchronization header is found, the timing can continue;

[0019] 2. If the synchronization header of the first channel cannot be found, switch to the last channel to find the synchronization header. If the synchronization header is found, the timing can continue to run;

[0020] 3. If the synchronization header of the last channel cannot be found, the search will switch to the synchronization header of the first channel. Repeat this cycle.

[0021] After the timing is running, as long as there are more than 2 channels in the light-transmitting state, the timing will be maintained.

[0022] The above is a preferred embodiment of the present invention. For ordinary technicians in this field, according to the teachings of the present invention, without departing from the principles and spirit of the present invention, changes, modifications, substitutions and variations made to the implementation methods are still within the scope of protection of the present invention.

Claims

1. A grating measuring device, comprising a fixing seat (1), a first column (2), a second column (3), a first column power supply and communication line (4), a second column power supply and communication line (5), a receiver (6), and a protector (7), characterized in that: The fixing base (1) is installed on the ground. A first column (2) and a second column (3) are provided on the fixing base (1). The first column (2) and the second column (3) are arranged opposite to each other. The first column (2) is connected to a power supply and communication line (4) of the first column. The second column (3) is connected to a power supply and communication line (5) of the second column. A receiver (6) is installed on a side of the second column (3) opposite to the first column (2). Bearing-mounted protectors (7) are provided on both sides of the first column (2) and the second column (3). The protectors (7) on both sides of the first column (2) are arranged in an upper and lower staggered manner. The protectors (7) on both sides of the second column (3) are arranged in an upper and lower staggered manner.

2. A grating measuring device according to claim 1, characterized in that: A transmitter is provided on a side opposite to the first column (2) and the second column (3), and a first channel (8), a last channel (10), and other channels (9) are installed on the transmitter. The first channel (8), other channels (9), and last channel (10) are on the same vertical line. When the transmitter controls the channel to emit light, the first channel (8) and the last channel (10) emit light multiple times, and the frequencies are not exactly the same. A synchronization channel is provided, and there is no special requirement for the other channels (9) to emit light.

3. A grating measuring device according to claim 1, characterized in that: A plurality of cushion blocks (11) are installed at the bottom of the fixing seat (1), and at least three circular holes (18) are opened on the cushion blocks (11). A spring (19) is installed at the circular hole (18), and a vertical rod (20) is installed on the top of the spring (19). Both the spring (19) and the vertical rod (20) are coated with yellow fluorescent powder, and the vertical rod (20) can enter the circular hole (18) after the spring (19) is compressed.

4. A grating measuring device according to claim 1, characterized in that: The protector (7) comprises a disc (12), a notch (13), an extension rod (15), and a screw (16). The disc (12) is connected to a first column (2) and a second column (3) via a bearing. The disc (12) is provided with a notch (13). A spring sheet (14) mounted with a screw is provided inside the notch (13). The extension rod (15) is connected to the notch (13). The upper and lower ends of the extension rod (15) are provided with a screw (16) connected by a thread. A screw (17) connected by a thread is provided on one side of the disc (12), and the screw (17) can penetrate the disc (12) and contact the first column (2) and the second column (3).

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