Semi-digital internal reading zero position instrument based on linear displacement sensor

Abstract

The invention relates to the technical field of semi-digital internal reading, in particular to a semi-digital internal reading zero position instrument based on a linear displacement sensor, which comprises a substrate, a machine body is fixedly mounted at the top end of the substrate, a sensor is fixedly connected to the top end of the substrate, and a cavity is formed in the inner wall of the machine body. The inner wall of the cavity is slidably connected with two rectangular plates distributed in a mirror image mode, the top ends of the rectangular plates are fixedly connected with cushion rods slidably connected with the top end of the machine body, the top end of the sensor is provided with an air cylinder capable of moving in a lifting mode, a rotary knob is rotated to drive the two cushion rods to move oppositely to be adjusted, and a round block is pushed to rotate after the cushion rods are adjusted to proper positions. The rotary knob cannot drive the rotating rod to rotate, the situation that the adjusted cushion rod moves again due to the fact that the rotary knob is touched by mistake is avoided, the applicability and flexibility of the device are improved, a user can more conveniently conduct adjustment according to the length of the gradienter in the using process, and therefore the accuracy and stability of measurement are guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of semi-digital internal reading, and particularly to a semi-digital internal reading zero position instrument based on a linear displacement sensor. Background Art

[0002] This semi-digital internal reading zero position instrument based on a linear displacement sensor is essentially a zero position instrument. It uses a linear displacement sensor to measure the displacement change of an object and provides an intuitive measurement result through a semi-digital reading method. The main function of the zero position instrument is to help determine the accurate position of the spindle axis or the fixture edge on equipment such as machine tools, electric discharge machine tools, or numerically controlled machine tools, so as to set the zero position on the workpiece.

[0003] Place the zero position instrument on a stable and flat workbench. According to the characteristics of the object to be measured and the measurement requirements, select a suitable installation position and method, correctly connect the output cable of the sensor to the input port of the reading system. Before measurement, perform zero calibration to ensure the accuracy of the starting point of the measurement result. Turn on the power switch of the reading system, start the equipment, move the object to be measured, so that the sensor captures the displacement change, observe the display result of the reading system, record the measurement data. According to the need, process and analyze the measurement data, such as calculating the average value, standard deviation, etc., and the measurement data can be exported to a computer or other devices for further processing.

[0004] However, the height and position of the cushion column of the existing semi-digital internal reading zero position instrument device of the linear displacement sensor are fixedly installed and cannot be adjusted according to actual needs. When facing the cushion column for supporting the level gauge, it cannot be moved and adjusted, resulting in the device being unable to adapt to level gauges of other lengths, restricting the use range and flexibility of the device, and may cause users to need to purchase multiple devices of different specifications to meet different needs. Summary of the Invention

[0005] (1) Technical Problems to be Solved

[0006] The problem of adjusting the cushion rod is solved, avoiding the need to purchase devices of different specifications to meet different needs, and improving the applicability and flexibility of the device.

[0007] (2) Technical Solutions

[0008] In view of the above problem of cushion rod adjustment, the present invention is proposed.

[0009] To solve the above technical problems, the present invention provides the following technical solution: a semi-digital internal reading zero position instrument based on a linear displacement sensor, including a base plate, a body is fixedly installed on the top end of the base plate, a sensor is fixedly connected to the top end of the base plate, a cavity is provided on the inner wall of the body, two mirror-image distributed rectangular plates are slidably connected to the inner wall of the cavity, a cushion rod fixedly connected to the top end of the rectangular plate and slidably connected to the top end of the body is provided, a liftable and movable cylinder is installed on the top end of the sensor, and a detector is slidably connected to the top end of the body.

[0010] As a preferred scheme of the semi-digital internal reading zero position instrument based on a linear displacement sensor of the present invention, wherein: two mirror-image distributed positioning rods fixedly connected to the inner wall of the cavity and slidably connected to the inner wall of the rectangular plate are provided, a rack is fixedly connected to the outer wall of the rectangular plate, and a rotating gear meshing with the outer wall of the rack and slidably connected to the cavity is provided.

[0011] As a preferred scheme of the semi-digital internal reading zero position instrument based on a linear displacement sensor of the present invention, wherein: a first bevel gear is fixedly connected to the bottom end of the rotating gear, a second bevel gear meshes with the outer wall of the first bevel gear, a rotating rod fixedly connected to the outer wall of the second bevel gear and slidably connected to the inner wall of the body is provided, and a knob is slidably connected to the outer wall of the body.

[0012] As a preferred scheme of the semi-digital internal reading zero position instrument based on a linear displacement sensor of the present invention, wherein: a round block is slidably connected to the inner wall of the knob, a connecting rod fixedly connected to the outer wall of the round block and slidably connected to the inner wall of the rotating rod is provided, a limiting block is fixedly connected to the outer wall of the connecting rod, a round plate is slidably connected to the inner wall of the rotating rod, and a spring is connected between the outer wall of the round plate and the outer wall of the limiting block.

[0013] As a preferred scheme of the semi-digital internal reading zero position instrument based on a linear displacement sensor of the present invention, wherein: a mounting plate is fixedly installed on the top end of the base plate, a motor is fixedly installed on the inner wall of the mounting plate, a lead screw is fixedly connected to the output end of the motor, and a square plate is threadedly sleeved on the outer wall of the lead screw.

[0014] As a preferred scheme of the semi-digital internal reading zero position instrument based on a linear displacement sensor of the present invention, wherein: a push plate fixedly connected to the bottom end of the cylinder is fixedly connected to the top end of the square plate, a push rod fixedly connected to the outer wall of the rack is fixedly connected to the output end of the cylinder, and a top plate slidably connected to the top end of the rack is fixedly installed on the outer wall of the cylinder.

[0015] As a preferred scheme of the semi-digital internal reading zero position instrument based on a linear displacement sensor of the present invention, wherein: a moving rod is fixedly connected to the bottom end of the top plate, a mounting block fixedly connected to the outer wall of the body is slidably connected to the outer wall of the moving rod, and a support foot in contact with the ground is fixedly connected to the bottom end of the base plate.

[0016] Advantages of the present invention:

[0017] 1. By rotating the knob to drive the two cushion rods to move towards each other for adjustment, after adjusting to the appropriate position, push the round block and rotate it, so that the knob cannot drive the rotating rod to rotate, avoiding accidental touch of the knob and causing the adjusted cushion rod to move again, improving the applicability and flexibility of the device, enabling the user to adjust more conveniently according to the length of the level during use, thereby ensuring the accuracy and stability of the measurement.

[0018] 2. The detector installed on the push rod is driven by the motor to perform lifting adjustment to adapt to measured objects of different sizes and shapes. This flexibility enables the device to be widely applied to various industrial detection scenarios, meet different detection requirements, reduce the manual operation links, lower the labor intensity of workers, and at the same time improve the accuracy and consistency of the detection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0020] Wherein:

[0021] Figure 1 is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 is a schematic diagram of the overall sectional structure of the present invention.

[0023] Figure 3 is a schematic diagram of the overall structure of the cushion rod of the present invention.

[0024] Figure 4 is a schematic diagram of the installation structure of the rotating gear of the present invention.

[0025] Figure 5 is a schematic diagram of the installation structure of the round block of the present invention.

[0026] Figure 6 is a schematic diagram of the installation structure of the motor of the present invention.

[0027] Description of the reference numerals: 1, substrate; 2, body; 3, support feet; 4, sensor; 5, mounting plate; 6, cylinder; 7, push rod; 8, detector; 9, top plate; 10, cushion rod; 11, mounting block; 12, moving rod; 13, rectangular plate; 14, rack; 15, positioning rod; 16, motor; 17, rotating gear; 18, first bevel gear; 19, second bevel gear; 20, rotating rod; 21, lead screw; 22, knob; 23, round block; 24, connecting rod; 25, square plate; 26, limit block; 27, round plate; 28, spring; 29, push plate. Detailed implementation manners

[0028] To make the above objects, features, and advantages of the present invention more apparent and understandable, the following provides a detailed description of the specific implementation manners of the present invention in conjunction with the accompanying drawings of the specification.

[0029] Embodiment 1

[0030] Referring to Figures 1-5 , for the first embodiment of the present invention, a semi-digital internal reading zero instrument based on a linear displacement sensor is provided, including a substrate 1. A body 2 is fixedly installed at the top end of the substrate 1. A sensor 4 is fixedly connected to the top end of the substrate 1. A cavity is formed in the inner wall of the body 2. Two mirror-image distributed rectangular plates 13 are slidably connected to the inner wall of the cavity. A cushion rod 10 slidably connected to the top end of the body 2 is fixedly connected to the top end of the rectangular plate 13. A cylinder 6 capable of lifting and moving is installed at the top end of the sensor 4. A detector 8 is slidably connected to the top end of the body 2. The data detected by the detector 8 is transmitted to the sensor 4.

[0031] Two mirror-image distributed positioning rods 15 fixedly connected to the inner wall of the cavity and slidably connected to the inner wall of the rectangular plate 13 are provided. The positioning rods 15 ensure the horizontal movement of the rectangular plate 13. A rack 14 is fixedly connected to the outer wall of the rectangular plate 13. A rotating gear 17 slidably connected to the cavity is meshed with the outer wall of the rack 14. The rotating gear 17 is used to drive the movement and adjustment of the cushion rod 10.

[0032] A first bevel gear 18 is fixedly connected to the bottom end of the rotating gear 17. A mounting frame for facilitating the sliding of the rotating gear 17 is installed on the inner wall of the cavity. A second bevel gear 19 is meshed with the outer wall of the first bevel gear 18. A rotating rod 20 slidably connected to the inner wall of the body 2 is fixedly connected to the outer wall of the second bevel gear 19. A cylinder for facilitating the rotation of the rotating rod 20 is installed at the bottom end of the cavity. A knob 22 is slidably connected to the outer wall of the body 2. The knob 22 is used to drive the rotation of the rotating rod 20.

[0033] A round block 23 is slidably connected to the inner wall of the knob 22. A convex block is provided on the outer wall of the round block 23 to facilitate the knob 22 to push the round block 23. A round groove for the convex block to slide is provided on the inner wall of the knob 22. A connecting rod 24 fixedly connected to the outer wall of the round block 23 and slidably connected to the inner wall of the rotating rod 20 is provided. A limiting block 26 is fixedly connected to the outer wall of the connecting rod 24. An activity groove for the limiting block 26 to slide is provided on the inner wall of the rotating rod 20. A round plate 27 is slidably connected to the inner wall of the rotating rod 20. A spring 28 is connected between the outer wall of the round plate 27 and the outer wall of the limiting block 26. The spring 28 is used to push the limiting block 26.

[0034] During the use process, rotating the knob 22 drives the round block 23 to rotate. The round block 23 drives the limiting block 26 to rotate. The limiting block 26 drives the rotating rod 20 to rotate. The rotating rod 20 drives the first bevel gear 18 to rotate through the second bevel gear 19. The first bevel gear 18 drives the two racks 14 to rotate through the rotating gear 17. The racks 14 drive the rectangular plate 13 to move along the positioning rod 15. The rectangular plate 13 drives the cushion rod 10 to move to an appropriate position. Pushing the round block 23 drives the limiting block 26 to move through the connecting rod 24. The limiting block 26 squeezes the spring 28 and then rotates the round block 23, driving the limiting block 26 to move through the connecting rod 24. At this time, the limiting block 26 disengages from the clamping connection with the rotating rod 20, and the knob 22 no longer drives the rotation of the rotating rod 20, avoiding accidental touch.

[0035] Embodiment 2

[0036] Refer to Figure 1 、 Figure 2 and Figure 6 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that: an installation plate 5 is fixedly installed at the top end of the substrate 1. A motor 16 is fixedly installed inside the installation plate 5. The motor 16 is used to drive the cylinder 6 to move up and down. The output end of the motor 16 is fixedly connected to a lead screw 21. A square plate 25 is threadedly sleeved on the outer wall of the lead screw 21. Threads sleeving the lead screw 21 are provided inside the square plate 25.

[0037] A push plate 29 fixedly connected to the top end of the square plate 25 and fixedly connected to the bottom end of the cylinder 6 is provided. A push rod 7 fixedly connected to the outer wall of the rack 14 is fixedly connected to the output end of the cylinder 6. A top plate 9 slidably connected to the top end of the rack 14 is fixedly installed on the outer wall of the cylinder 6. The top plate 9 facilitates the movement of the detector 8.

[0038] A moving rod 12 fixedly connected to the bottom end of the top plate 9 is provided. The moving rod 12 is used to cooperate with the movement of the cylinder 6. An installation block 11 fixedly connected to the outer wall of the machine body 2 is slidably connected to the outer wall of the moving rod 12. Support feet 3 in contact with the ground are fixedly connected to the bottom end of the substrate 1.

[0039] During use, start the motor 16 to drive the lead screw 21 to rotate. The lead screw 21 drives the square plate 25 to move. The square plate 25 drives the cylinder 6 to move through the push plate 29. The cylinder 6 drives the moving rod 12 to move along the mounting block 11 through the top plate 9. Start the cylinder 6 to drive the detector 8 to move horizontally along the top plate 9 through the push rod 7 for detection. The detected data is transmitted to the sensor 4 for display. Thus, the operation is completed.

[0040] The remaining structures are the same as those in Embodiment 1.

[0041] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A semi-digital internal reading zero position instrument based on a linear displacement sensor, comprising a substrate (1), wherein a body (2) is fixedly installed at the top end of the substrate (1), a sensor (4) is fixedly connected to the top end of the substrate (1), and a cavity is formed in the inner wall of the body (2), characterized in that: Two mirror - distributed rectangular plates (13) are slidably connected to the inner wall of the cavity. A cushion rod (10) fixedly connected to the top of the rectangular plate (13) is slidably connected to the top of the machine body (2). A cylinder (6) capable of lifting and moving is installed at the top of the sensor (4). A detector (8) is slidably connected to the top of the machine body (2).

2. The semi-digital internal reading zero position instrument based on a linear displacement sensor according to claim 1, wherein: Two mirror - distributed positioning rods (15) fixedly connected to the inner wall of the cavity and slidably connected to the inner wall of the rectangular plate (13) are provided. A rack (14) is fixedly connected to the outer wall of the rectangular plate (13). A rotating gear (17) meshing with the outer wall of the rack (14) is slidably connected to the cavity.

3. A semi-digital internal reading zero position instrument based on a linear displacement sensor according to claim 2, characterized in that: A first bevel gear (18) is fixedly connected to the bottom end of the rotating gear (17). A second bevel gear (19) meshes with the outer wall of the first bevel gear (18). A rotating rod (20) fixedly connected to the outer wall of the second bevel gear (19) and slidably connected to the inner wall of the machine body (2) is provided. A knob (22) is slidably connected to the outer wall of the machine body (2).

4. A semi-digital internal reading zero position instrument based on a linear displacement sensor according to claim 3, characterized in that: A round block (23) is slidably connected to the inner wall of the knob (22). A connecting rod (24) fixedly connected to the outer wall of the round block (23) and slidably connected to the inner wall of the rotating rod (20) is provided. A limiting block (26) is fixedly connected to the outer wall of the connecting rod (24). A round plate (27) is slidably connected to the inner wall of the rotating rod (20). A spring (28) is connected between the outer wall of the round plate (27) and the outer wall of the limiting block (26).

5. A semi-digital internal reading zero position instrument based on a linear displacement sensor according to claim 1, characterized in that: An installation plate (5) is fixedly installed at the top of the substrate (1). A motor (16) is fixedly installed in the inner wall of the installation plate (5). A lead screw (21) is fixedly connected to the output end of the motor (16). A square plate (25) is threadedly sleeved on the outer wall of the lead screw (21).

6. The semi-digital internal reading zero position instrument based on a linear displacement sensor according to claim 5, characterized in that: A push plate (29) fixedly connected to the bottom end of the cylinder (6) is fixedly connected to the top of the square plate (25). A push rod (7) fixedly connected to the outer wall of the rack (14) is fixedly connected to the output end of the cylinder (6). A top plate (9) fixedly installed on the outer wall of the cylinder (6) and slidably connected to the top of the rack (14) is provided.

7. A semi-digital internal reading zero position instrument based on a linear displacement sensor according to claim 6, characterized in that: A moving rod (12) is fixedly connected to the bottom end of the top plate (9). The moving rod (12) is slidably connected to a mounting block (11) fixedly connected to the outer wall of the machine body (2). Support feet (3) in contact with the ground are fixedly connected to the bottom end of the substrate (1).

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