CN110806164B

CN110806164B - A device and method for detecting the angle of a small-sized sample block

Info

Publication number: CN110806164B
Application number: CN201910882460.4A
Authority: CN
Inventors: 饶红斌; 邬理凡; 童新建; 刘正兵; 郑建勇
Original assignee: Hubei New Huaguang Information Materials Co Ltd
Current assignee: Hubei New Huaguang Information Materials Co Ltd
Priority date: 2019-09-18
Filing date: 2019-09-18
Publication date: 2021-10-01
Anticipated expiration: 2039-09-18
Also published as: CN110806164A

Abstract

The invention discloses a device and a method for detecting an angle of a small-size sample block. Belongs to the technical field of angle measurement of optical or mechanical parts. The angle detection device mainly solves the problems that the angle is relatively fixed, the processing batch is large, and the angle needs to be timely and accurately detected. It is mainly characterized in that: the dial gauge comprises a working platform, a pressure plate, a dial gauge and a dial gauge position adjusting mechanism; a groove for placing small-sized sample blocks and a sample block firming mechanism are arranged on the working platform, and an included angle between one side surface of the groove and the upper surface of the working platform is 90 degrees; the pressure plate is arranged on the working platform beside the groove through an adjustable firm mechanism; the dial indicator is arranged on the dial indicator position adjusting mechanism, and the adjusting mechanism is fixed on the working platform. After the sample block to be measured is positioned, the knob data and dial indicator data in the X, Y axial direction are adjusted and recorded, and the angular deviation of the sample block to be measured is determined by calculating the deviation in unit distance. The invention is suitable for detecting the angle of the refractive index of the V prism, can find the processing deviation and improves the detection precision.

Description

Device and method for detecting angle of small-size sample block

Technical Field

The invention belongs to the technical field of angle measurement of optical or mechanical parts, and particularly relates to a method and a device for accurately and rapidly measuring large-batch and fixed angles of small-specification sample blocks, which can be used for detecting the fixed angles of optical constant samples.

Background

In the process of machining optical or mechanical parts, some small-specification parts, such as sample blocks with the length and the width of only 10-40 mm, have fixed angles, are large in machining batch, need to accurately measure the machining angles in time, and then carry out subsequent machining and measurement, but some existing measuring devices or instruments, such as a comparative goniometer, an angle gauge and the like have some defects, mainly embodied in that the measured angles of some instruments, such as the comparative goniometer, need to be polished, the measuring speed is low, or the angles are measured by the angle gauge, only rough estimation can be carried out, accurate values cannot be read, the small-specification parts are not suitable for large-scale, rapid and accurate measurement of the angles of the sample blocks on a machining site, and the accuracy of subsequent measurement data is influenced. The influence on the quenching sample with the optical glass constant is larger, and the inaccuracy of the angle of the sample can influence the accuracy of direct subsequent measurement data, so that the accuracy of the constant data of batch optical products produced by the batch of glass with the measurement data as the reference is influenced.

Disclosure of Invention

The invention provides a measuring device and a method for accurately measuring the angle of a small-specification sample block.

The technical solution of the detection device of the invention is as follows: the utility model provides a detect device of small dimension appearance piece angle which characterized in that: the dial gauge comprises a working platform, a pressure plate, a dial gauge and a dial gauge position adjusting mechanism; the working platform is provided with a groove for placing a small-specification sample block and a sample block firming mechanism, and the included angle between the side surface of the groove, which is in contact with the sample block, and the upper surface of the working platform is 90 degrees; the pressing plate is arranged on the working platform beside the groove through an adjustable fastening mechanism; the dial indicator is installed on the dial indicator position adjusting mechanism, and the dial indicator position adjusting mechanism is fixed on the working platform.

The invention discloses a technical solution of a detection device, wherein a sample block firmness mechanism comprises an adjusting and fastening knob and a horizontal threaded hole; the horizontal threaded hole is communicated with the groove; the adjusting and fastening knob is provided with a thread matched with the horizontal threaded hole and is arranged in the horizontal threaded hole.

The adjustable firm mechanism in the technical scheme of the detection device comprises a locking screw and a mounting groove on a pressure plate; the upper surface of the working platform is provided with a matched longitudinal threaded hole, and the locking screw penetrates through the mounting groove to fix the pressing plate on the working platform.

In the technical scheme of the detection device, the dial indicator position adjusting mechanism comprises an adjusting platform capable of being adjusted in the horizontal X-axis and Y-axis directions and a dial indicator frame capable of adjusting the height; but the adjustment platform that horizontal X axle and Y axle direction were adjusted installs on work platform, and the amesdial frame is fixed on adjusting the platform, and the amesdial is installed on the amesdial frame.

The adjusting platform in the technical scheme of the detection device comprises a Y-axis direction adjusting knob, an X-axis direction moving carriage, an X-axis direction adjusting knob, a Y-axis direction moving carriage and a platform bottom plate, wherein the platform bottom plate is fixed on a working platform; the dial indicator stand comprises a vertical rod seat, a fastening screw rod, a first fastening chuck, a cross rod, a first locking knob, a vertical rod, a second locking knob and a second fastening chuck, the vertical rod and the vertical rod seat are fixed on a Y-axis direction moving carriage, one end of the cross rod is installed on the vertical rod through the first fastening chuck and the first locking knob, and the dial indicator is installed at the other end of the cross rod through the second locking knob and the second fastening chuck. When the knob in the X direction is adjusted, the adjusting platform drives the gauge stand fixed and adjusting the height of the dial gauge to move in the X direction, and when the knob in the Y direction is adjusted, the adjusting platform drives the gauge stand fixed and adjusting the height of the dial gauge to move in the Y direction.

The dial indicator in the technical scheme of the detection device has the division value of 0.001mm and the precision of +/-0.0003 mm.

The working platform in the technical scheme of the detection device is made of wear-resistant stainless steel metal materials, has smooth surface and good flatness, is provided with a groove for placing and fixing a small-sized sample block to be detected, a beta angle with a standard 90-degree angle error of +/-2' and a threaded hole for connecting an adjusting platform, a pressing plate and a fastening knob.

According to the technical scheme of the detection device, the front end of the adjusting and fastening knob is adhered with the elastic rubber sheet, so that one side surface of the small-size sample block to be detected with the angle is convenient to cling to the working platform.

The technical solution of the detection method of the invention is as follows: a method for detecting the angle of a small-format sample block by using the apparatus of claim 1, comprising the steps of:

firstly, placing and fixing a pressing plate above the groove;

placing the small-specification sample block in the groove, enabling one side surface of a to-be-side corner of the small-specification sample block to be tightly attached to the side surface of the groove, which is in contact with the sample block, and the other side surface of the to-be-side corner of the small-specification sample block to be tightly attached to the bottom surface of the pressing plate, and fastening the small-specification sample block through a sample block fastening adjusting mechanism;

adjusting the dial indicator position adjusting mechanism to enable the dial indicator head to press the working platform tightly, moving and observing the dial indicator pointer to be placed at a zero position when the change is minimum;

and after the pressure plate is moved away from the upper part of the groove, the position adjusting mechanism of the dial indicator is adjusted to enable the dial indicator to move on the other side surface of the small-specification sample block, and the deviation of the waiting side angle of the small-specification sample block is obtained according to the movement amount and the reading change of the dial indicator.

The steps in the technical solution of the detection method of the present invention include:

loosening the locking screw, moving the pressing plate to a position for placing the small-specification sample block, and screwing the locking screw so that the lower surface of the pressing plate is tightly attached to the working platform;

placing the small-specification sample block in the groove by hand, enabling one side surface of a to-be-side corner of the small-specification sample block to be close to the side surface of the groove, which is contacted with the sample block, and the other side surface of the to-be-side corner of the small-specification sample block to be close to the bottom surface of the pressing plate, supporting the small-specification sample block by hand, rotating the adjusting and fastening knob, and loosening the hand after tightly pressing the small-specification sample block;

adjusting to enable a dial indicator head to tightly press the working platform, enabling the dial indicator to read for 0.5-1.0 mm, observing the change of a pointer when the dial indicator moves in the direction of an X, Y shaft on the working platform, and enabling the pointer of the dial indicator to be arranged at a zero position when the change of the pointer is small;

and loosening the locking screw, moving the pressure plate from the position of the small-specification sample block to a non-working position, adjusting the Y-axis direction knob and the X-axis direction knob to enable the dial indicator to move on the other side surface of the measured small-specification sample block, recording and adjusting the scale number on the Y-axis direction knob and the X-axis direction knob, obtaining X, Y axial movement amount and reading change of the dial indicator, and calculating the deviation of the waiting side angle of the small-specification sample block.

The invention is suitable for detecting the angle of the refractive index of the V prism, can find the processing deviation and improves the detection precision.

Drawings

FIG. 1 is a schematic view of a state where a small-sized sample is placed according to the present invention.

FIG. 2 is a schematic view showing a state where a small-sized sample is tested according to the present invention.

In the figure: 1. a Y-axis direction adjusting knob; 2. moving the carriage in the X-axis direction; 3. an X-axis direction adjusting knob; 4. moving the carriage in the Y-axis direction; 5. a vertical rod seat; 6. fastening a screw rod; 7. a first fastening collet; 8. a cross bar; 9. a first locking knob; 10. erecting a rod; 11. a dial indicator; 12. a second locking knob; 13. a second fastening collet; 14. locking the screw rod; 15. pressing a plate; 16. adjusting a fastening knob; 17. rubber sheets; 18. a working platform; 19. and (5) small-specification sample blocks.

Detailed Description

As shown in fig. 1 and 2, the apparatus for detecting the angle of the small-sized sample block of the present invention mainly comprises: the device comprises a Y-axis direction adjusting knob 1, an X-axis direction moving carriage 2, an X-axis direction adjusting knob 3, a Y-axis direction moving carriage 4, a vertical rod seat 5, a fastening screw 6, a first fastening chuck 7, a cross rod 8, a first locking knob 9, a vertical rod 10, a dial indicator 11, a second locking knob 12, a second fastening chuck 13, a locking screw 14, a pressure plate 15, an adjusting fastening knob 16, a rubber sheet 17, a working platform 18 and a small-specification sample block 19. The working platform 18 is a rectangular body and made of wear-resistant stainless steel metal materials, a groove for placing the small-specification sample block 19 is formed in the working platform, and the groove is a rectangular groove with an opening on one side and a through upper surface and a through lower surface. The side of the groove that contacts the sample block and is closer to the middle of the working platform 18 forms an angle beta with the upper surface of the working platform 18 of 90 degrees (the angle error is +/-2%). The adjustment fastening knob 16 and the horizontal threaded hole constitute a proof mass securing mechanism. The inner end hole of the horizontal thread hole is communicated with the side surface of the groove close to the end part of the working platform 18, the outer end hole is communicated with the end surface of the working platform 18, and the axial direction of the hole is vertical to the side surface of the groove close to the middle part of the working platform 18. The adjustment tightening knob 16 is provided with threads that mate with the horizontal threaded hole and is mounted in the horizontal threaded hole. The rubber sheet 17 is arranged at the end part of the adjusting and fastening knob 16, so that the A surface of the small-size sample block 19 to be measured is tightly attached to the side surface of the groove of the working platform 18. The locking screw 14 and the mounting groove on the pressure plate 15 form an adjustable firm mechanism, and the pressure plate 15 is a rectangular metal plate. The upper surface of the working platform 18 is provided with a matched longitudinal threaded hole, and the locking screw 14 passes through the mounting groove to fix the pressure plate 15 on the working platform 18. The pressure plate 15 is positioned on the working platform 18 beside the groove, and can be adjusted to be positioned above the groove when fixing the sample block and moved away from the groove when measuring. An adjusting platform is composed of a Y-axis direction adjusting knob 1, an X-axis direction moving carriage 2, an X-axis direction adjusting knob 3, a Y-axis direction moving carriage 4 and a platform bottom plate, the platform bottom plate is fixed on a working platform 18, a sliding mechanism is arranged between the X-axis direction moving carriage 2 and the platform bottom plate, and sliding mechanisms such as a sliding rail sliding chute are arranged between the Y-axis direction moving carriage 4 and the X-axis direction moving carriage 2. Upright post seat 5, fastening screw 6, first fastening chuck 7, horizontal pole 8, first locking knob 9, upright post 10, second locking knob 12 and second fastening chuck 13 constitute the amesdial frame, upright post 10 is fixed on upright post seat 5, upright post seat 5 is fixed on Y axle direction removes planker 4 through fastening screw 6, horizontal pole 8 one end is through first fastening chuck 7, first locking knob 9 is installed in upright post 10, amesdial 11 is through second locking knob 12, the other end at horizontal pole 8 is installed to second fastening chuck 13. The adjusting platform and the dial indicator frame form a dial indicator position adjusting mechanism. The dial gauge 11 has a division value of 0.001mm and a precision of + -0.0003 mm.

When the Y-axis direction adjusting knob 1 is adjusted, the Y-axis direction moving planker 4 moves towards the Y-axis direction, the Y-axis direction moving planker 4 is driven to be connected with the vertical rod seat 5 through the fastening screw 6, and then the vertical rod 10, the first fastening chuck 7, the cross rod 8 and the second fastening chuck 13 drive the dial indicator 11 to move in the Y-axis direction; when the adjusting knob 3 in the X-axis direction is adjusted, the movable planker 2 in the X-axis direction moves towards the X-axis direction, the movable planker 2 in the X-axis direction drives the movable planker 4 in the Y-axis direction to be connected with the upright rod seat 5 through the fastening screw 6, and then the dial indicator 11 is driven to move in the X-axis direction through the upright rod 10, the first fastening chuck 7, the cross rod 8 and the second fastening chuck 13.

The included angle beta of the working platform 18 of the measuring device is a standard angle, the working platform is made of wear-resistant stainless steel metal materials, the surface is smooth, the flatness is good, and the groove can be used for placing and fixing a small-specification sample block 19 to be measured.

Before the small-size sample block 19 to be measured is placed, the locking screw 14 is loosened, the pressure plate 15 is moved to the position where the small-size sample block 19 is placed, and the locking screw 14 is screwed, so that the lower surface of the pressure plate 15 is tightly attached to the working platform 18. The angle alpha to be measured of the small-specification sample block 19 is an angle to be measured, the surface A of the angle alpha to be measured is tightly attached to the side surface of the groove when the small-specification sample block is placed, the surface B of the angle alpha to be measured is tightly attached to the pressing plate 15, the small-specification sample block 19 is held by a hand and placed well, the adjusting and fastening knob 16 is screwed, the small-specification sample block 19 is tightly pressed, the hand is loosened, the locking screw 14 is loosened, and the pressing plate 15 is moved to a non-working position. The pressing end of the adjusting and fastening knob 16 is rubber 17, so that the surface A of the to-be-side angle alpha is tightly attached to the side surface of the groove of the working platform 18.

After the dial indicator 11 of the measuring device is placed and locked with the small-specification sample block 19 and before the side angle alpha is measured, the head of the dial indicator 11 presses the working platform 18 tightly, so that the reading of the dial indicator 11 is 0.5-1.0 mm, when the dial indicator 11 moves in the direction of the X, Y shaft on the working platform 18, the change of a pointer is observed, and when the change of the pointer is small, the pointer of the dial indicator 11 is placed at a zero position.

And adjusting the Y-axis direction adjusting knob 1 and the X-axis direction adjusting knob 3 to enable the dial indicator 11 to move on the surface B of the small-specification sample block 19 to be measured, recording and adjusting the scale number on the Y-axis direction adjusting knob 1 and the X-axis direction adjusting knob 3 to obtain X, Y axial direction movement amount and dial indicator 11 reading change, and calculating the deviation of the alpha angle.

Claims

1. A device for detecting the angle of a small-sized sample block, characterized in that it comprises a working platform (18), a pressure plate (15), a dial indicator (11) and a dial indicator position adjustment mechanism; the working platform (18) There is a groove for placing small-sized sample blocks and a sample block fastening mechanism. The groove is a rectangular groove with a side opening and an upper and lower penetrating through. The side contacting the sample block and the upper surface of the working platform (18) The included angle (β) is a 90° angle with an angle error of ±2"; the pressure plate (15) is installed on the working platform (18) beside the groove through an adjustable fastening mechanism, and can be adjusted to fix the sample block when It is located above the groove and moves away from the top of the groove during measurement; the dial indicator (11) is installed on the dial indicator position adjustment mechanism, and the dial indicator position adjustment mechanism is fixed on the working platform (18); the sample The block tightening mechanism includes an adjustment tightening knob (16) and a horizontal threaded hole; the horizontal threaded hole communicates with the groove; the adjustment tightening knob (16) is provided with a thread matched with the horizontal threaded hole, and is installed on the horizontal in the threaded hole; the dial indicator position adjustment mechanism includes an adjustment platform that can be adjusted in the horizontal X-axis and Y-axis directions and a dial indicator frame that can be adjusted in height; the adjustment platform that can be adjusted in the horizontal X-axis and Y-axis directions Installed on the working platform (18), the dial indicator frame is fixed on the adjustment platform, and the dial indicator (11) is installed on the dial indicator frame.

2. A device for detecting the angle of a small-sized sample block according to claim 1, characterized in that: the adjustable fastening mechanism comprises a locking screw (14) and a mounting groove on the pressing plate (15); The upper surface of the working platform (18) is provided with matching longitudinal threaded holes, and the locking screw (14) passes through the installation groove to fix the pressing plate (15) on the working platform (18).

3. A device for detecting the angle of a small-sized sample block according to claim 1 or 2, characterized in that: the adjustment platform comprises a Y-axis direction adjustment knob (1), an X-axis direction moving carriage (2) , X-axis direction adjustment knob (3), Y-axis direction moving carriage (4) and platform bottom plate, the platform bottom plate is fixed on the working platform (18), and the X-axis direction moving carriage (2) and the platform bottom plate are provided with A sliding mechanism, a sliding mechanism is provided between the moving carriage (4) in the Y-axis direction and the moving carriage (2) in the X-axis direction; the dial indicator stand includes a vertical rod seat (5), a fastening screw ( 6), the first tightening chuck (7), the cross bar (8), the first locking knob (9), the vertical rod (10), the second locking knob (12) and the second tightening chuck ( 13) The vertical rod (10) and the vertical rod seat (5) are fixed on the moving carriage (4) in the Y-axis direction, and one end of the horizontal rod (8) passes through the first tightening chuck (7) and the first locking knob (9) Installed on the vertical rod (10), and the dial indicator (11) is installed on the other end of the crossbar (8) through the second locking knob (12) and the second tightening chuck (13).

4 . The device for detecting the angle of a small-sized sample block according to claim 1 or 2 , wherein the index value of the dial indicator ( 11 ) is 0.001mm, and the precision is ±0.0003mm. 5 .

5 . The device for detecting the angle of a small-sized sample block according to claim 1 or 2 , wherein the working platform ( 18 ) is made of wear-resistant stainless steel metal material. 6 .

6. A device for detecting the angle of a small-sized sample block according to claim 1 or 2, characterized in that: the end of the adjusting and tightening knob (16) is provided with a rubber cover (17).

7. A method for detecting the angle of a small-sized sample block using the device according to claim 1, characterized in that it comprises the following steps: (1) firstly placing the pressing plate (15) above the groove and fixing it; (2) placing the small The standard sample block (19) is placed in the groove, and one side of the small-sized sample block (19) to be measured for the angle (α) is close to the side of the groove and the sample block, and the other side is in contact with the pressing plate (15). The bottom surface is close to each other, and the small-sized sample block (19) is fastened by adjusting the sample block fastening mechanism; (3) Adjust the position adjustment mechanism of the dial indicator so that the head of the dial indicator (11) presses the working platform (18), and moves And observe that the pointer of the dial indicator (11) is placed at the zero position when the change is the smallest; (4) after removing the pressure plate (15) from the top of the groove, adjust the position adjustment mechanism of the dial indicator so that the indicator (11) is in the small position. The specification sample block (19) moves on the other side, and according to the movement amount and the reading change of the dial indicator (11), the deviation of the angle to be measured (α) of the small specification sample block (19) is obtained.

8. The method for detecting the angle of a small-size sample block according to claim 7, characterized by comprising the following steps: (1) loosening the locking screw (14), moving the pressing plate (15) to place the small-size sample block (19) ) position, tighten the locking screw (14) so that the lower surface of the pressure plate (15) is close to the working platform (18); (2) Place the small-size sample block (19) in the groove by hand, and make the small-size sample block (19) One side of the sample block (19) to be measured (α) is close to the side of the groove that is in contact with the sample block, and the other side is close to the bottom surface of the pressure plate (15). Hold the small size sample block (19) by hand, Rotate the adjusting and tightening knob (16), press the small-sized sample block (19), and then let go; (3) Adjust so that the head of the dial indicator (11) is pressed against the working platform (18), so that the dial indicator (11) reads Between 0.5~1.0mm, when the dial indicator (11) moves in the X and Y axis directions on the working platform (18), observe the change of the pointer. If the pointer changes very little, set the pointer of the dial indicator (11) to the zero position. ;(4) Loosen the locking screw (14), move the pressure plate (15) from the position of the small size sample block (19) to the non-working position, adjust the Y-axis direction knob (1) and the X-axis direction knob (3) , move the dial indicator (11) on the other side of the small-sized sample block (19) under test, record the scale numbers on the adjustment knob (1) of the Y-axis direction and the adjustment knob (3) of the X-axis direction, and obtain The amount of movement in the X and Y axis directions and the change in the reading of the dial indicator (11) can calculate the deviation of the angle to be measured (α) of the small-sized sample block (19).