Positioning auxiliary jig for optical interferometer

Abstract

The utility model discloses a positioning auxiliary jig for an optical interferometer, which comprises a fixed seat, a guide rail and a detection instrument are fixed above the fixed seat, a movable sliding block is slidably mounted on the surface of the guide rail, an article mounting seat is fixed at the top of the movable sliding block, and an article mounting hole is formed in the article mounting seat along the connecting line direction of two ends of the guide rail in a penetrating manner. A fixing ring is fixedly mounted in the article mounting hole, a plurality of slidable adjusting sliding blocks are distributed on the inner side of the fixing ring in a circular array mode, clamping electric telescopic rods are fixed to the outer portions of the adjusting sliding blocks and point to the circle center of the fixing ring, and clamping blocks are fixed to the movable ends of the clamping electric telescopic rods. The device has the advantages that the clamping electric telescopic rod, the connecting ball, the reset block, the connecting rope, the reinforcing pressing rod and the reinforcing friction gasket are utilized, so that the position of a detected object can be rapidly fixed, and it is guaranteed that the position of the detected object cannot deviate or rotate in the detection process.

Description

Technical Field

[0001] The utility model relates to the technical field of optical interferometers, in particular to a positioning auxiliary fixture for optical interferometers. Background Art

[0002] Interferometer is a general term for a very broad class of experimental techniques. The idea is to use the superposition of waves to obtain the phase information of waves, so as to obtain the physical quantity of interest in the experiment. Interferometer is not limited to optical interferometers. Interferometer is widely used in astronomy, optics, engineering measurement, oceanography, seismology, spectrum analysis, quantum physics experiments, remote sensing radar and other precision measurement fields.

[0003] An optical interferometer is an instrument used to conduct optical interference phenomena. Optical interference phenomena refers to splitting a monochromatic light beam into two beams and then allowing them to overlap in a certain area in space. It will be found that the light intensity in the overlapping area is not evenly distributed: its brightness varies with its position in space. The brightest place exceeds the sum of the intensities of the original two beams, while the darkest place may have zero light intensity. This redistribution of light intensity is called "interference fringes."

[0004] However, in the prior art, when the object to be tested is clamped, the friction between the object to be tested and the clamping fixture is relatively small, which causes the position of the object to be tested to shift or deflect after being clamped, thus affecting the accuracy of the test results. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a positioning auxiliary fixture for an optical interferometer.

[0006] In order to solve the above technical problems, the technical solution of the utility model is:

[0007] A positioning auxiliary fixture for an optical interferometer comprises a fixed seat, a guide rail and a detection instrument are fixed above the fixed seat, a movable slider is slidably installed on the surface of the guide rail, an object mounting seat is fixed on the top of the movable slider, an object mounting seat is penetrated and opened with an object mounting hole along the direction of the line connecting the two ends of the guide rail, a fixed ring is fixedly installed inside the object mounting hole, a plurality of slidable adjustment sliders are distributed in a circular array inside the fixed ring, a clamping electric telescopic rod is fixed outside the adjustment slider and the clamping electric telescopic rod points to the center of the fixed ring, and a clamping block is fixed to the movable end of the clamping electric telescopic rod.

[0008] Preferably, two reinforcing pressure rods are installed on the inner side of the clamping block, one end of the reinforcing pressure rod is slidably inserted into the clamping block and a reset spring is fixed between the clamping block, and the other end of the reinforcing pressure rod is fixed with a reinforced friction gasket, which is made of rubber and has a spherical protrusion on the outer surface.

[0009] Preferably, a reset block is installed between the two reinforcing pressure rods, one end of the reset block is slidably inserted into the clamping block and a reset spring is fixed between the clamping block, and a connecting rope is fixed between the end of the reset block inserted into the clamping block and the two reinforcing pressure rods.

[0010] Preferably, a plurality of positioning pins are distributed on the side of the reset block, and both ends of the positioning pins are fixed to the clamping block.

[0011] Preferably, a plurality of connecting balls are installed on the inner side of the adjusting slider, the connecting balls are in rolling contact with the fixing ring and a ball pressure plate is installed between the connecting balls and the fixing ring, both sides of the ball pressure plate are clamped in the inner wall of the adjusting slider, and a clamping screw is installed through one side of the adjusting slider.

[0012] Compared with the prior art, the utility model has the following advantages: when the clamping electric telescopic rod pushes the clamping block to contact the detection object, the reset block will be squeezed into the clamping block and compress the reset spring, the reset block will pull the connecting rope and make the reinforced pressure rod extend from the inside of the clamping block and squeeze and compress the reinforced friction gasket to the outside of the detection object, the reinforced pressure rod and reinforced friction gasket are used to increase the friction resistance between the detection object and the clamping block, ensure the stability of the detection object after being clamped, and prevent the detection object from position displacement or rotation during the detection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a side view of the article mounting seat of the utility model;

[0015] Figure 3 It is a cross-sectional view of the adjusting slider of the utility model;

[0016] Figure 4 It is a structural schematic diagram of the clamping block of the utility model.

[0017] In the figure: 1. fixed seat; 2. guide rail; 3. movable slider; 4. detection instrument; 5. object mounting seat; 6. object mounting hole; 7. fixing ring; 8. adjusting slider; 9. clamping electric telescopic rod; 10. connecting ball; 11. ball pressure plate; 12. clamping screw; 13. reinforcement pressure rod; 14. connecting rope; 15. reset tension spring; 16. reset block; 17. reset spring; 18. positioning pin; 19. reinforcement friction gasket; 20. clamping block. DETAILED DESCRIPTION

[0018] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0019] like Figure 1 and Figure 2 As shown, a guide rail 2 and a detection instrument 4 are fixed above the fixed seat 1, a movable slider 3 is slidably installed on the surface of the guide rail 2, an article mounting seat 5 is fixed on the top of the movable slider 3, an article mounting hole 6 is penetrated and opened on the article mounting seat 5 along the direction of the connecting line of the two ends of the guide rail 2, a fixing ring 7 is fixedly installed inside the article mounting hole 6, a plurality of slidable adjustment sliders 8 are distributed in a circular array inside the fixing ring 7, a clamping electric telescopic rod 9 is fixed to the outside of the adjustment slider 8 and the clamping electric telescopic rod 9 points to the center of the fixing ring 7, a clamping block 20 is fixed to the movable end of the clamping electric telescopic rod 9, and the clamping block 20 is pushed to move by the clamping electric telescopic rod 9, so that the article to be inspected can be clamped and positioned quickly, and the axis of the inspected article can be ensured to coincide with the axis of the article mounting hole 6, and the position of the clamping block 20 can be changed by sliding the adjustment slider 8, so that the device can clamp and fix articles of different shapes.

[0020] As the preferred technical solution of this embodiment, Figure 4 As shown, two reinforcing pressure rods 13 are installed on the inner side of the clamping block 20, one end of the reinforcing pressure rod 13 is slidably inserted into the clamping block 20 and a reset spring 15 is fixed between the clamping block 20, and a reinforced friction gasket 19 is fixed to the other end of the reinforcing pressure rod 13. The reinforced friction gasket 19 is made of rubber and has a spherical protrusion on the outer surface. A reset block 16 is installed between the two reinforcing pressure rods 13, one end of the reset block 16 is slidably inserted into the clamping block 20 and a reset spring 17 is fixed between the clamping block 20, and a connecting rope 14 is fixed between the end of the reset block 16 inserted into the clamping block 20 and the two reinforcing pressure rods 13. The reinforcing pressure rod 13 and the reinforced friction gasket 19 are used to increase the friction resistance between the detected object and the clamping block 20, so that there is no relative rotation between the detected object and the clamping block 20.

[0021] In this embodiment, a plurality of positioning pins 18 are distributed on the sides of the connecting rope 14, and both ends of the positioning pins 18 are fixed to the clamping block 20. The connecting rope 14 is fixed by the positioning pins 18 to ensure that the reinforcing pressure rod 13 can extend from the inside of the clamping block 20 when the reset block 16 is squeezed.

[0022] As the preferred technical solution of this embodiment, Figure 3As shown, a plurality of connecting balls 10 are installed on the inner side of the adjusting slider 8, the connecting balls 10 are in rolling contact with the fixing ring 7 and a ball pressure plate 11 is installed between the connecting balls 10 and the fixing ring 7, both sides of the ball pressure plate 11 are clamped in the inner wall of the adjusting slider 8, and a clamping screw 12 is installed through one side of the adjusting slider 8. The existence of the connecting balls 10 allows the adjusting slider 8 to slide well on the inner side of the fixing ring 7 so as to adjust the position of the adjusting slider 8, and the clamping screw 12 can increase the pressure between the adjusting slider 8 and the fixing ring 7, and fix the position of the adjusting slider 8 after adjusting the outer wall of the adjusting slider 8.

[0023] Working principle: first place the object to be detected inside the object installation hole 6, then adjust the position of the clamping block 20 according to the external shape of the object to be detected, unscrew the clamping screw 12 from the adjusting slider 8 during adjustment, and then push the adjusting slider 8 to slide inside the fixing ring 7, so that the clamping block 20 reaches the specified position, then screw the clamping screw 12 into the adjusting slider 8 and the end of the clamping screw 12 is squeezed against the side wall of the fixing ring 7 to fix the position of the adjusting slider 8, the clamping electric telescopic rod 9, and the connecting ball 10. After the position of all the connecting balls 10 is adjusted, although some of the clamping electric telescopic rods 9 are powered on and started at the same time, the clamping electric telescopic rod 9 will push The movable clamping block 20 approaches the inspection object. At this time, the reset block 16 inside the clamping block 20 will first contact the outer wall of the inspection object, and the reset block 16 will be squeezed into the clamping block 20. At this time, the reset block 16 will pull the reinforcement pressure rod 13 through the connecting rope 14, so that the reinforcement pressure rod 13 extends from the inside of the connecting ball 10 and squeezes the reinforcement friction gasket 19 on the outer wall of the inspection object. The position of the inspection object can be quickly fixed by clamping the electric telescopic rod 9, the clamping block 20, the reset block 16, the connecting rope 14, the reinforcement pressure rod 13, and the reinforcement friction gasket 19, and it is ensured that the inspection object will not be displaced or rotated during the inspection process.

[0024] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A positioning auxiliary fixture for an optical interferometer, comprising a fixed seat (1), a guide rail (2) and a detection instrument (4) are fixed above the fixed seat (1), a movable slider (3) is slidably mounted on the surface of the guide rail (2), an object mounting seat (5) is fixed on the top of the movable slider (3), and an object mounting hole (6) is formed on the object mounting seat (5) along the direction of the connecting line between the two ends of the guide rail (2), characterized in that: A fixing ring (7) is fixedly installed inside the article installation hole (6), and a plurality of slidable adjustment sliders (8) are distributed in a circular array inside the fixing ring (7). A clamping electric telescopic rod (9) is fixed outside the adjustment slider (8), and the clamping electric telescopic rod (9) points to the center of the fixing ring (7), and a clamping block (20) is fixed to the movable end of the clamping electric telescopic rod (9).

2. The positioning auxiliary fixture for an optical interferometer according to claim 1, characterized in that: Two reinforcing pressure rods (13) are installed on the inner side of the clamping block (20), one end of the reinforcing pressure rod (13) is slidably inserted into the inside of the clamping block (20) and a reset tension spring (15) is fixed between the clamping block (20), and the other end of the reinforcing pressure rod (13) is fixed with a reinforcing friction gasket (19), the reinforcing friction gasket (19) is made of rubber and has a spherical protrusion on the outer surface.

3. The positioning auxiliary fixture for an optical interferometer according to claim 2, characterized in that: A reset block (16) is installed between the two reinforcing pressure rods (13), one end of the reset block (16) is slidably inserted into the clamping block (20) and a reset spring (17) is fixed between the clamping block (20), and a connecting rope (14) is fixed between the end of the reset block (16) inserted into the clamping block (20) and the two reinforcing pressure rods (13).

4. The positioning auxiliary fixture for an optical interferometer according to claim 3, characterized in that: A plurality of positioning pins (18) are distributed on the side of the reset block (16), and both ends of the positioning pins (18) are fixed to the clamping block (20).

5. The positioning auxiliary fixture for an optical interferometer according to claim 1, characterized in that: A plurality of connecting balls (10) are installed on the inner side of the adjusting slider (8), the connecting balls (10) are in rolling contact with the fixing ring (7) and a ball pressure plate (11) is installed between the connecting balls (10) and the fixing ring (7), both sides of the ball pressure plate (11) are clamped in the inner wall of the adjusting slider (8), and a clamping screw (12) is installed through one side of the adjusting slider (8).

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