High-precision linear displacement measurement grating ruler

Abstract

The utility model relates to the technical field of measuring grating rulers, and discloses a high-precision linear displacement measuring grating ruler which comprises a grating ruler, a sliding block is slidably connected in the grating ruler, mounting grooves are formed in the front end and the rear end of the grating ruler, and limiting baffles are fixedly connected to the left end and the right end of the grating ruler; the surface of the grating ruler is fixedly connected with a fixed supporting column. According to the utility model, the distance adjusting support rod is in threaded connection with the fixed transverse plate through the limiting screw rod, so that a micro-distance adjusting function can be realized, and the expansion and contraction amount of the distance adjusting support rod can be accurately controlled by rotating the limiting screw rod, thereby adjusting the position of the mounting clamping frame, adapting to mounting bases or measurement objects with different sizes, improving the universality and flexibility of the device, and reducing the cost. And through sliding adjustment of the limiting screw rod from the interior of the fixed transverse plate, limiting and clamping can be carried out according to the distance between the limiting supporting plate and the bottom of the grating ruler, and the using balance and clamping stability of the grating ruler are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of measuring grating ruler, especially to a high accuracy linear displacement measurement grating ruler. BACKGROUND

[0002] Grating ruler is a kind of sensor for position measurement using optical principle, mainly consisting of scale grating and grating reading head two parts.Scale grating is engraved with a large number of equidistant stripes, when light source passes these stripes, moire phenomenon will be produced.Grating reading head can accurately measure the change of position by analyzing these optical signals, the core of grating ruler lies in the moire effect of grating.When two gratings with the same period overlap each other and have a small angle or displacement, moire stripes of light and shade will be produced.The change of these stripes can be converted into electrical signal, by analyzing these signals, extremely accurate position information can be obtained, grating reading head usually includes light source, converging lens, indicating grating, photoelectric element and adjusting mechanism etc., moire change is captured by photoelectric detector or sensor, thereby determining displacement.

[0003] The existing high-precision linear displacement measurement grating ruler, when the equipment is used in different positions, causes the measuring equipment to move in the internal position of the grating ruler, and there is no stable limiting when the force is large, which causes the grating ruler to move and affects the measurement result and stability of the whole equipment during use. UTILITY MODEL CONTENTS

[0004] To solve the above technical problems, the utility model provides a kind of high-precision linear displacement measurement grating ruler.

[0005] The utility model adopts the following technical scheme realization: a kind of high-precision linear displacement measurement grating ruler, including grating ruler, the inside sliding connection of grating ruler has sliding block, the front and rear ends of grating ruler are equipped with installation recess, the left and right ends of grating ruler are fixedly connected with limit baffle;

[0006] The surface of the grating ruler is fixedly connected with a fixed support, the surface of the fixed support is rotatably connected with a rotating support plate, the top of the rotating support plate is fixedly connected with an installation clamping block, the inside of the installation clamping block is clamped with a fixed horizontal plate, the inside of the fixed horizontal plate is slidably connected with a distance adjusting support rod, the inside of the distance adjusting support rod is threadedly connected with a limit screw, the bottom of the distance adjusting support rod is fixedly connected with an installation clamping frame, and the inside of the installation clamping frame is slidably connected with a limit support plate.

[0007] Through the above technical scheme, two limit baffle are symmetrically distributed around the grating ruler, which can effectively limit the displacement range of the sliding block, prevent it from deviating or falling off due to external force or vibration during sliding, and improve the stability and safety of the measurement process.

[0008] As a further improvement of the above-mentioned scheme, the number of the limiting baffle is two, and the two limiting baffles are symmetrically distributed left and right around the grating ruler.

[0009] As a further improvement of the above-mentioned scheme, the fixed support is fixedly connected in the inside of the mounting groove, and the rotating support plate is located in the inside of the mounting groove and the grating ruler.

[0010] Through the above technical scheme, the rotating support plate can rotate the mounting clamping block and the internal fixed horizontal plate at different angles.

[0011] As a further improvement of the above-mentioned scheme, the number of the fixed support and the rotating support plate is four, and each two is a group, and the four fixed supports and rotating support plates are symmetrically distributed left and right around the grating ruler.

[0012] As a further improvement of the above-mentioned scheme, the bottom of the fixed horizontal plate is in surface contact with the top surface of the rotating support plate, and the limiting screw extends through the fixed horizontal plate to the inside of the distance adjusting support rod.

[0013] As a further improvement of the above-mentioned scheme, the number of the mounting clamping frame and the limiting support plate is four, and each two is a group, and the four mounting clamping frames and limiting support plates are symmetrically distributed left and right around the grating ruler.

[0014] As a further improvement of the above-mentioned scheme, the limiting support plate is located at the bottom of the grating ruler, and the limiting support plate is located at the bottom of the rotating support plate.

[0015] As a further improvement of the above-mentioned scheme, the surface of the rotating support plate is in surface contact with the front and rear end surfaces of the grating ruler, and the number of the mounting grooves is two, and the two mounting grooves are symmetrically distributed front and rear around the grating ruler.

[0016] Compared with the prior art, the beneficial effects of the present application are as follows:

[0017] The distance adjusting support rod is threadedly connected with the fixed horizontal plate through the limiting screw, so that the macro distance adjusting function can be realized, the extension amount of the distance adjusting support rod can be accurately controlled by rotating the limiting screw, the position of the mounting clamping frame is adjusted, different sizes of mounting bases or measurement objects are adapted, the versatility and flexibility of the device are improved, the limiting and clamping can be performed according to the distance between the limiting support plate and the bottom of the grating ruler by sliding adjustment of the limiting screw from the inside of the fixed horizontal plate, and the balance and clamping stability of the grating ruler during use are ensured.

[0018] The utility model discloses a limit baffle is set to the left and right two ends of grating ruler can guarantee the inside sliding of sliding block in grating ruler, also can guarantee the support stability of grating ruler when using, the flexibility of stable installation and angle rotation adjustment of fixed pillar and rotary support plate can be guaranteed through setting grating ruler and installation recess. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is whole structure schematic diagram of the utility model;

[0020] Figure 2 It is structure enlarged schematic diagram of the utility model A place;

[0021] Figure 3 It is front dissection structure schematic diagram of the utility model;

[0022] Figure 4 It is structure schematic diagram of the utility model from the bottom;

[0023] Figure 5 It is structure schematic diagram of the utility model from the right;

[0024] Main symbol explanation:

[0025] 1, grating ruler;2, sliding block;3, installation recess;4, limit baffle;5, fixed pillar;6, rotary support plate;7, installation clamping block;8, fixed crossbeam;9, distance adjusting support rod;10, limit screw;11, installation clamping frame;12, limit support plate. DETAILED DESCRIPTION

[0026] Below, combining the drawings and specific implementation, the utility model is described further, need explaining is, under the premise of not conflicting, the following described each embodiment between or each technical feature between can be combined to form new embodiment.

[0027] Embodiment:

[0028] Please combine Figures 1-5 The utility model discloses a kind of high-precision linear displacement measurement grating rulers of the embodiment, including grating ruler 1, the inside sliding connection of grating ruler 1 has sliding block 2, installation recess 3 is set to the front and rear ends of grating ruler 1, the left and right ends of grating ruler 1 are fixedly connected with limit baffle 4;

[0029] The surface of the grating ruler 1 is fixedly connected with a fixed support 5, the surface of the fixed support 5 is rotatably connected with a rotating support plate 6, the top of the rotating support plate 6 is fixedly connected with a mounting clamping block 7, the inside of the mounting clamping block 7 is clamped with a fixed horizontal plate 8, the inside of the fixed horizontal plate 8 is slidably connected with a distance adjusting support 9, the inside of the distance adjusting support 9 is threadedly connected with a limiting screw 10, the bottom of the distance adjusting support 9 is fixedly connected with a mounting clamping frame 11, and the inside of the mounting clamping frame 11 is slidably connected with a limiting support plate 12. By threadedly connecting the distance adjusting support 9 with the fixed horizontal plate 8 through the limiting screw 10, the micro-distance adjustment function can be realized, the extension amount of the distance adjusting support 9 can be accurately controlled by rotating the limiting screw 10, the position of the mounting clamping frame 11 is adjusted, the mounting base or the measuring object of different sizes is adapted, and the versatility and flexibility of the device are improved. By slidingly adjusting the inside of the fixed horizontal plate 8 through the limiting screw 10, the limiting and clamping can be performed according to the distance between the limiting support plate 12 and the bottom of the grating ruler 1, and the balance and clamping stability of the grating ruler 1 during use are ensured.

[0030] The two limiting baffle plates 4 are symmetrically distributed left and right around the grating ruler 1, can effectively limit the displacement range of the sliding block 2, prevent it from deviating or falling off during sliding due to external force or vibration, and improve the stability and safety of the measuring process.

[0031] The number of limiting baffle plates 4 is two, and the two limiting baffle plates 4 are symmetrically distributed left and right around the grating ruler 1.

[0032] The fixed support 5 is fixedly connected in the inside of the mounting groove 3, and the rotating support plate 6 is located in the inside of the mounting groove 3 and the grating ruler 1.

[0033] The rotating support plate 6 can rotate the mounting clamping block 7 and the fixed horizontal plate 8 inside it at different angles.

[0034] The number of fixed supports 5 and rotating support plates 6 is four, and each two is a group, and the four fixed supports 5 and rotating support plates 6 are symmetrically distributed left and right around the grating ruler 1. By setting the limiting baffle plates 4 at the left and right ends of the grating ruler 1, it can be ensured that the sliding block 2 slides in the inside of the grating ruler 1, and the supporting stability of the grating ruler 1 during use can also be ensured. By setting the grating ruler 1 and the mounting groove 3, the fixed support 5 and the rotating support plate 6 can be stably installed and flexibly adjusted in angle rotation.

[0035] The bottom of the fixed horizontal plate 8 is in surface contact with the top of the rotating support plate 6, and the limiting screw 10 extends through the fixed horizontal plate 8 to the inside of the distance adjusting support 9.

[0036] The number of mounting clamping frames 11 and limiting support plates 12 is four, and each two is a group, and the four mounting clamping frames 11 and limiting support plates 12 are symmetrically distributed left and right around the grating ruler 1.

[0037] The limiting support plate 12 is located at the bottom of the grating ruler 1, and the limiting support plate 12 is located at the bottom of the rotating support plate 6.

[0038] The surface of the rotating support plate 6 is in contact with the front and rear end surfaces of the grating ruler 1, and the number of the mounting grooves 3 is set to two, and the two mounting grooves 3 are symmetrically distributed in front and back of the grating ruler 1.

[0039] The implementation principle of the high-precision linear displacement measurement grating ruler in the embodiment of the application is as follows: the distance adjusting support rod 9 is threadedly connected with the fixed horizontal plate 8 through the limiting screw rod 10, so that the micro distance adjustment function can be realized, the extension amount of the distance adjusting support rod 9 can be accurately controlled by rotating the limiting screw rod 10, so that the position of the mounting clamping frame 11 is adjusted, different sizes of the mounting base or the measurement object are adapted, and the versatility and flexibility of the device are improved, the limiting screw rod 10 is slidably adjusted from the inside of the fixed horizontal plate 8, the limiting and clamping can be performed according to the distance between the limiting support plate 12 and the bottom of the grating ruler 1, the balance and clamping stability of the grating ruler 1 during use are ensured, the limiting baffle 4 at the left and right ends of the grating ruler 1 is arranged, so that the sliding block 2 can slide in the grating ruler 1, and the supporting stability of the grating ruler 1 during use is ensured, the grating ruler 1 and the mounting groove 3 are arranged, so that the fixed support column 5 and the rotating support plate 6 can be stably installed and flexibly adjusted in the angle rotation.

[0040] The above embodiment is only a preferred embodiment of the application, and cannot be used to limit the range of protection of the application, and any non-substantial change and replacement made by a person skilled in the art on the basis of the application belongs to the range of protection of the application.

Claims

1. A high-precision linear displacement measuring grating ruler, characterized in that, Includes a grating ruler (1), a sliding block (2) is slidably connected inside the grating ruler (1), mounting grooves (3) are provided at the front and rear ends of the grating ruler (1), and limit baffles (4) are fixedly connected to the left and right ends of the grating ruler (1). The surface of the grating ruler (1) is fixedly connected to a fixed support column (5), the surface of the fixed support column (5) is rotatably connected to a rotating support plate (6), the top of the rotating support plate (6) is fixedly connected to a mounting block (7), the inside of the mounting block (7) is engaged with a fixed horizontal plate (8), the inside of the fixed horizontal plate (8) is slidably connected to an adjusting support rod (9), the inside of the adjusting support rod (9) is threadedly connected to a limit screw (10), the bottom of the adjusting support rod (9) is fixedly connected to a mounting frame (11), the inside of the mounting frame (11) is slidably connected to a limit support plate (12).

2. The high-precision linear displacement measuring grating ruler as described in claim 1, characterized in that: The number of the limiting baffles (4) is set to two, and the two limiting baffles (4) are symmetrically distributed on the left and right sides with the grating ruler (1) as the center.

3. The high-precision linear displacement measuring grating ruler as described in claim 1, characterized in that: The fixed support (5) is fixedly connected inside the mounting groove (3), and the rotating support plate (6) is located inside the mounting groove (3) and the grating ruler (1).

4. The high-precision linear displacement measuring grating ruler as described in claim 1, characterized in that: The number of fixed support pillars (5) and rotating support plates (6) is set to four, and each pair is a group. The four fixed support pillars (5) and rotating support plates (6) are symmetrically distributed on the left and right with the grating ruler (1) as the center.

5. A high-precision linear displacement measuring grating ruler as described in claim 1, characterized in that: The bottom of the fixed horizontal plate (8) contacts the top surface of the rotating support plate (6), and the limiting screw (10) extends through the fixed horizontal plate (8) into the interior of the adjusting support rod (9).

6. The high-precision linear displacement measuring grating ruler as described in claim 1, characterized in that: The number of the mounting frame (11) and the limiting support plate (12) is set to four, and each pair is a group of four. The four mounting frames (11) and the limiting support plate (12) are symmetrically distributed on the left and right with the grating ruler (1) as the center.

7. A high-precision linear displacement measuring grating ruler as described in claim 1, characterized in that: The limiting support plate (12) is located at the bottom of the grating ruler (1), and the limiting support plate (12) is located at the bottom of the rotating support plate (6).

8. A high-precision linear displacement measuring grating ruler as described in claim 1, characterized in that: The surface of the rotating support plate (6) is in contact with the front and rear end surfaces of the grating ruler (1), and the number of the mounting grooves (3) is set to two, with the two mounting grooves (3) symmetrically distributed in front and behind with the grating ruler (1) as the center.

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