An auxiliary fixture for image measuring instrument used for parts inspection

Abstract

The present invention discloses an auxiliary fixture of an image measuring instrument for part inspection, relates to the field of part measuring fixtures, and solves the problem that the auxiliary fixture of the existing image measuring instrument for part inspection is difficult to adjust the horizontal degree of the part according to the required top surface position when in use. The auxiliary fixture comprises a body, a calibration mechanism, a support mechanism and a clamping mechanism. The calibration mechanism comprises a lifting frame and a positioning rod. The support mechanism comprises a mounting plate, a fixing tube, a support rod and an airbag. The auxiliary fixture of the image measuring instrument for part inspection performs preliminary support by placing the part to be measured on the upper end of the support rod. After the positioning rod is moved to the required position, the bottom of the part is lifted up by inflating the airbag. The bottom end of the positioning rod is positioned and abutted against the position that needs to be in the same plane, so that the top surface of the part abuts against the bottom surfaces of multiple groups of positioning rods, thereby realizing calibration of the required measuring plane. The two sides of the adjusted part are clamped and fixed by the clamping mechanism.

Description

Technical Field

[0001] The present invention relates to the technical field of part measuring fixtures, in particular to an auxiliary fixture of an image measuring instrument used for part detection. Background Art

[0002] With technological advancements, the use of visual image inspection is becoming increasingly common in automated production. Visual image inspection, which directly replaces the human eye in measurement and judgment, uses machines, such as image measuring instruments, to achieve higher measurement accuracy and effectively reduce inspection costs. Image measuring instruments are based on CCD digital imaging, leveraging computer screen measurement technology and powerful software capabilities for spatial geometry calculations. They can quickly read the displacement value of an optical scale, obtain the desired result by capturing a top view of the part, and generate a graphic on the screen for the operator to compare the image and the result, thereby intuitively identifying possible deviations in the measurement results.

[0003] Existing image measuring instruments for part inspection typically place the part to be inspected directly on a measuring table and perform image measurement by moving the top camera. However, since the surface of the measuring table is relatively flat, the bottom shapes of parts vary. When placed directly on the measuring table, the part tends to tilt, affecting the accuracy of the image measurement. Existing auxiliary fixtures can only clamp and fix the part, making it difficult to adjust the horizontality of the part surface. As a result, even after clamping, the part may still be tilted. In this case, the top view of the part is directly captured by the top camera, and the dimensional measurement data obtained from the captured image will have certain errors. Therefore, we propose an auxiliary fixture for image measuring instruments for part inspection. Summary of the Invention

[0004] The object of the present invention is to provide an auxiliary fixture of an image measuring instrument for part inspection, which is convenient for adjusting and fixing the required surface of a part when placing the part, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an auxiliary fixture of an image measuring instrument for part inspection, comprising a body, a calibration mechanism, a support mechanism and a clamping mechanism, wherein two sets of fixed plates are fixedly connected to the body, a sliding frame that can be controlled to slide horizontally is provided on the body, a measuring instrument that can be adjusted to slide horizontally is provided on the sliding frame, the calibration mechanism comprises a lifting frame connected to the fixed plates on both sides in a vertical direction, a plurality of positioning rods are provided on the lifting frame, which are used to position and interfere with the positions that need to be in the same plane through the bottom ends of the positioning rods to realize calibration of the required measuring plane, the support mechanism comprises a lifting frame connected to the top surface of the body in a horizontal direction The mounting plate is connected, and multiple groups of fixed tubes are fixedly connected to the mounting plate, and support rods are respectively connected in a vertical sliding manner in the multiple groups of fixed tubes. Multiple groups of air bags are fixedly connected to the mounting plate, and the multiple groups of air bags are respectively located between adjacent fixed tubes, and are used to place the part to be tested on the upper end of the support rod for preliminary support. After the positioning rod is moved to the required position, the bottom of the part is lifted up by inflating the air bag, so that the top surface of the part contacts the bottom surface of the multiple groups of positioning rods, thereby realizing the leveling function. The clamping mechanism is installed on the lifting frame, and is used to clamp and fix the two sides of the adjusted part, so as to facilitate the adjustment and fixation of the required surface of the part when the part is placed.

[0006] Preferably, the support mechanism also includes sliding blocks fixedly mounted on both sides of the mounting plate, the sliding blocks are fixedly connected to an inflator, the inflator is connected to a delivery pipe, multiple groups of the air bags are connected to the delivery pipe, and the fixed pipe is provided with a control member for limiting the position of the support rod in the required area after being moved down by pressing, so as to avoid continuously lifting the raised position of the bottom of the part, so as to facilitate the initial support by placing the part to be tested on the upper end of the support rod. After the positioning rod moves to the required position, the bottom of the part is lifted up by inflating the air bag, so that the top surface of the part collides with the bottom surface of the multiple groups of positioning rods, thereby realizing the leveling function.

[0007] The top of described sliding panel also is provided with an interlocking structure, and the interlocking structure of described sliding panel also is provided with an interlocking structure, and the interlocking structure of described sliding panel also is provided with an interlocking structure.

[0008] Preferably, the control component also includes a first spring fixedly installed on the upper side of the lifting block, and the bottom of the fixing tube is fixedly connected to a second spring, and the top surface of the second spring is rotatably fitted with the bottom surface of the lifting block. The mounting plate is provided with a driving component for synchronously controlling the support rod to move downward after the part is fixed and clamped, and removing the mounting plate from the bottom of the part, so as to facilitate supporting the position of the lifting block and the support rod.

[0009] Preferably, the driving member includes a first tension spring fixedly mounted on the sliding block, one end of the first tension spring is fixedly connected to the machine body, a sliding frame is slidably connected to the mounting plate, a plurality of connecting rods are evenly fixedly connected to the sliding frame, and a plurality of connecting ropes are evenly fixedly connected to the side surfaces of the connecting rod, the connecting rope passes through the mounting plate and the fixed tube, and is slidably connected to the mounting plate and the inner wall of the fixed tube, one end of the connecting rope away from the connecting rod is rotatably connected to the bottom surface of the lifting block through a rotating buckle, and a second tension spring fixedly connected to the connecting rod is fixedly connected to the mounting plate, the elastic force of the first tension spring is greater than the elastic force of the second tension spring, so that after the parts are fixed and clamped, the support rod is synchronously controlled to move downward and the mounting plate is moved away from the bottom of the part.

[0010] Preferably, the calibration mechanism also includes multiple groups of fixed cylinders fixedly mounted on the lifting frame, a lifting column is slidably connected in the vertical direction in the fixed cylinder, the bottom of the lifting column is fixedly connected to a third tension spring fixedly connected to the fixed cylinder, the top surface of the lifting column is rotatably connected to a telescopic sleeve rod, and the positioning rod is fixedly mounted on the lower side of one end of the telescopic sleeve rod to facilitate adjustment of the position of the positioning rod.

[0011] Preferably, the calibration mechanism also includes a first electric telescopic rod fixedly mounted on the fixed plate, the telescopic end of the first electric telescopic rod is fixedly connected to the bottom surface of the lifting frame, and the top surface of the fixed cylinder is rotatably connected to a limit block for limiting the lifting column, so as to facilitate the adjustment of the height of the lifting frame and limit the lifting column by the limit block.

[0012] Preferably, the clamping mechanism includes multiple groups of second electric telescopic rods fixedly mounted on the lifting frame, the telescopic ends of the second electric telescopic rods are fixedly connected to a guide frame, a guide rod is slidably connected to the guide frame in a vertical direction, a clamping block for clamping and fixing the parts is fixedly connected to the side of the bottom end of the guide rod, and a fixing nut for limiting the position of the guide rod is provided on the guide frame, so as to facilitate clamping and fixing both sides of the parts.

[0013] Preferably, an elastic card block is provided on the machine body, and a side surface of the sliding block is provided with a card slot that can be engaged with one end of the elastic card block, so as to facilitate preliminary limiting of the position of the mounting plate after the mounting plate is pulled out.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The invention provides an auxiliary fixture of an image measuring instrument for part inspection, which solves the problem that the auxiliary fixture of the existing image measuring instrument for part inspection is difficult to adjust the horizontal degree of the part placement according to the required top surface position when in use, resulting in inaccurate measurement results. The part to be measured is placed on the upper end of the support rod for preliminary support. After the positioning rod is moved to the required position, the air bag is inflated to lift the bottom of the part. The bottom end of the positioning rod is positioned and interfered with the position that needs to be in the same plane, so that the top surface of the part is interfered with the bottom surfaces of multiple groups of positioning rods, so as to realize the calibration of the required measurement plane, and the two sides of the adjusted part are clamped and fixed by the clamping mechanism. The device has a simple structure and is easy to use. It can quickly place and support parts with different bottom surfaces, and finally lifts the part so that the positioning point is interfered with by the positioning support of the top surface that needs to be leveled, so as to realize the leveling of the positioning point position, realize image measurement of the required top surface, and achieve more accurate measurement results. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of the parts of the present invention in a positioning and fixing state;

[0018] Figure 3 It is a schematic diagram of the local structure of the calibration mechanism of the present invention;

[0019] Figure 4for Figure 3 Enlarged view of area A in the middle;

[0020] Figure 5 It is a schematic diagram of the partial structure of the clamping mechanism of the present invention;

[0021] Figure 6 for Figure 5 Enlarged view of area B in the middle;

[0022] Figure 7 It is a schematic diagram of the partial structure of the support mechanism of the present invention;

[0023] Figure 8 This is a schematic diagram of the local structure of the driving member of the present invention;

[0024] Figure 9 This is a schematic diagram of the local structure of the control component of the present invention;

[0025] Figure 10 for Figure 9 Enlarged view of area C in the middle;

[0026] Figure 11 This is an exploded view of the local structure of the control component of the present invention;

[0027] Figure 12 for Figure 11 Enlarged view of area D in the middle.

[0028] In the figure: 1-body; 2-fixed plate; 3-sliding frame; 4-measuring instrument; 5-calibration mechanism; 6-lifting frame; 7-positioning rod; 8-support mechanism; 9-mounting plate; 10-fixed tube; 11-support rod; 12-airbag; 13-clamping mechanism; 14-sliding block; 15-inflator; 16-delivery pipe; 17-control part; 18-limiting tube; 19-limiting groove; 20-lifting block; 21-limiting rod; 22-pushing block; 23-lifting ring; 24-first oblique tooth groove; 25-second oblique tooth groove Tooth groove; 26-first spring; 27-second spring; 28-driving member; 29-first tension spring; 30-sliding frame; 31-connecting rod; 32-connecting rope; 33-second tension spring; 34-fixing cylinder; 35-lifting column; 36-third tension spring; 37-telescopic sleeve; 38-first electric telescopic rod; 39-limiting block; 40-second electric telescopic rod; 41-guide frame; 42-guide rod; 43-clamping block; 44-fixing nut; 45-elastic clamping block; 46-clamping groove; 47-parts. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0030] See also Figures 1-12 , an auxiliary fixture of an image measuring instrument for part inspection shown in the figure includes a body 1, a calibration mechanism 5, a support mechanism 8 and a clamping mechanism 13. Two sets of fixed plates 2 are fixedly connected to the body 1. A sliding frame 3 that can be controlled to slide horizontally is provided on the body 1. A measuring instrument 4 that can be adjusted for horizontal sliding is provided on the sliding frame 3. The calibration mechanism 5 includes a lifting frame 6 that is slidably connected to the fixed plates 2 on both sides in the vertical direction. The lifting frame 6 is provided with multiple groups of positioning rods 7, which are used to locate and interfere with the positions that need to be in the same plane through the bottom ends of the positioning rods 7 to achieve calibration of the required measuring plane. The support mechanism 8 includes a lifting frame 6 that is slidably connected to the top surface of the body 1 in the horizontal direction. The mounting plate 9 has multiple groups of fixed tubes 10 fixedly connected to it, and each group of fixed tubes 10 is respectively connected with a support rod 11 in a vertical sliding direction. The mounting plate 9 has multiple groups of air bags 12 fixedly connected to it, and each group of air bags 12 is respectively located between adjacent fixed tubes 10, and is used to place the part 47 to be tested on the upper end of the support rod 11 for preliminary support. After the positioning rod 7 is moved to the desired position, the bottom of the part 47 is lifted up by inflating the air bag 12, so that the top surface of the part 47 is in conflict with the bottom surface of the multiple groups of positioning rods 7, thereby realizing the leveling function. The clamping mechanism 13 is installed on the lifting frame 6, and is used to clamp and fix the two sides of the adjusted part 47.

[0031] The support mechanism 8 also includes a sliding block 14 fixedly mounted on both sides of the mounting plate 9, to which an inflator 15 is fixedly connected, and a delivery pipe 16 is connected to the inflator 15. Multiple groups of airbags 12 are connected to the delivery pipe 16. A control component 17 is provided in the fixed tube 10 for limiting the position of the support rod 11 in the required area by pressing it downward to avoid continuously lifting the raised position at the bottom of the part 47.

[0032] The control member 17 includes a limit tube 18 fixedly installed in the fixed tube 10, and a plurality of limit grooves 19 are evenly arranged on the side of the limit tube 18. The outer wall of the support rod 11 is movably sleeved with the inner wall of the limit tube 18. A lifting block 20 is movably sleeved in the fixed tube 10. The top surface of the lifting block 20 is fixedly connected to a plurality of limit rods 21 that can be plugged into the limit groove 19 in the vertical direction. The side of the support rod 11 is fixedly connected to a push block 22 that is slidably connected to the limit groove 19 in the vertical direction. The lifting block 20 is fixedly connected to a lifting block 20. Ring 23, the upper side of the lifting ring 23 is evenly provided with multiple groups of first oblique tooth grooves 24 that can slide and fit with the bottom surface of the pushing block 22, and the bottom of the limiting tube 18 is evenly provided with multiple groups of second oblique tooth grooves 25 that can slide and fit with the top surface of the limiting rod 21. The top surface of the limiting rod 21 and the bottom surface of the pushing block 22 are both inclined designs, similar to the principle of pressing a ballpoint pen, so that each time the support rod 11 is pressed to the bottom end, the limiting and rebound states will be intermittently realized. When it is not pressed to the bottom end, the state before pressing will be maintained.

[0033] The control member 17 also includes a first spring 26 fixedly installed on the upper side of the lifting block 20, and a second spring 27 is fixedly connected to the bottom of the fixed tube 10. The top surface of the second spring 27 is rotatably fitted with the bottom surface of the lifting block 20. The mounting plate 9 is provided with a driving member 28 for synchronously controlling the support rod 11 to move downward and remove the mounting plate 9 from the bottom of the part 47 after the part 47 is fixed and clamped.

[0034] The driving member 28 includes a first tension spring 29 fixedly mounted on the sliding block 14, one end of the first tension spring 29 is fixedly connected to the body 1, and a sliding frame 30 is slidably connected in the mounting plate 9. A plurality of connecting rods 31 are evenly fixedly connected in the sliding frame 30, and a plurality of connecting ropes 32 are evenly fixedly connected on the side of the connecting rod 31. The connecting rope 32 passes through the mounting plate 9 and the fixed tube 10, and is slidably connected to the inner wall of the mounting plate 9 and the fixed tube 10. One end of the connecting rope 32 away from the connecting rod 31 is rotatably connected to the bottom surface of the lifting block 20 through a rotating buckle. A second tension spring 33 fixedly connected to the connecting rod 31 is fixedly connected in the mounting plate 9. The elastic force of the first tension spring 29 is greater than the elastic force of the second tension spring 33. An elastic card block 45 is provided on the body 1, and a card slot 46 that can be carded with one end of the elastic card block 45 is opened on the side of the sliding block 14.

[0035] In this embodiment, the measuring surface of the part 47 to be measured is facing upwards and the bottom surface is placed on the support rod 11, and the part 47 is pushed downwards for a distance so that the convex position of the bottom surface of the part 47 pushes the support rod 11 at this location to the lowest point. The pushing block 22 on the side of the support rod 11 pushes the limiting rod 21 downwards out of the limiting groove 19, and pushes the first oblique tooth groove 24 to rotate to a set angle through the inclined surface at the bottom of the pushing block 22. After sliding out of the limiting groove 19, the limiting rod 21 rotates with the lifting ring 23. As the part 47 moves upwards, the second spring 27 rebounds and pushes the lifting block 20 upwards. When the part 47 is released, the top of the limit rod 21 will move up to the second bevel tooth groove 25 due to the rotation of a certain angle, so that the lifting block 20 can no longer push the support rod 11 to lift it up. The support rod 11 here is in a limited state. As for the support rod 11 at a position where there is no protrusion on the bottom surface of the part 47, when the part 47 moves downward, the support rod 11 at this position cannot reach the bottom end, so that the limit rod 21 has not been pushed out of the limit groove 19. After the part 47 is released, the support rod 11 here will be lifted up again by the lifting block 20 and the second spring 27, thereby achieving the purpose of automatically supporting the bottom of the part 47.

[0036] After the part 47 is placed, the position of the positioning rod 7 is adjusted so that the bottom of the positioning rod 7 is directly above the top surface of the plane to be measured. Then, the inflation and deflation machine 15 is started to inflate the conveying tube 16 and the airbag 12. The airbag 12 gradually expands from the bottom of the part 47 to lift the bottom of the part 47 as a whole, until the top surface to be measured of the part 47 is tightly in contact with the bottom end of the positioning rod 7. At this time, the surface to be measured is already in a horizontal state. The part 47 is clamped and fixed by the clamping mechanism 13 on both sides. The mounting plate 9 and the support rod 11 can be pulled out from under the part 47 as a whole for subsequent measurement. By adjusting the horizontal position of the sliding frame 3 and the measuring instrument 4, the top view of the top surface to be measured is photographed. The precise size of the top surface can be obtained by analyzing the top view, thereby improving the measurement accuracy.

[0037] When moving out of the mounting plate 9, it is necessary to first evacuate the delivery pipe 16 through the inflator 15 to shrink the airbag 12 and release the support on the bottom of the part 47, and then pull the sliding frame 30, which drives the connecting rod 31 to slide horizontally in the mounting plate 9. At this time, since the tension of the first tension spring 29 is much greater than the tension of the second tension spring 33, the sliding frame 30 and the connecting rod 31 will move first, and the connecting rod 31 will drive the connecting rope 32 to pull the lifting block 20 down, thereby driving all the support rods 11 to move down to the bottom position together, and the top of the support rod 11 will release the support for the part 47 is supported. At this time, the sliding frame 30 can no longer slide out relative to the mounting plate 9. Thereafter, continuing to pull the sliding frame 30 can drive the mounting plate 9 to slide horizontally away from the bottom position of the part 47. The first tension spring 29 is stretched until the sliding block 14 reaches the position of the elastic block 45. At this time, the clamping groove 46 is clamped by the elastic block 45, completing the fixation of the position of the mounting plate 9. Thereafter, the image measurement of the part 47 can ensure that the bottom of the part 47 is in a relatively unobstructed state, thereby avoiding interference with the measurement of the image of the part 47 by the large number of support rods 11 at the bottom.

[0038] After the measurement is completed, the elastic blocks 45 on both sides can be pushed aside to release the limit of the clamping groove 46. Under the pull of the first tension spring 29, the mounting plate 9 can be driven to slide back and reset. At this time, it is also necessary to pull the sliding frame 30 to prevent the protruding support rod 11 from hitting the bottom of the part 47. At the same time, it will also drive the support rod 11 to move down to the bottom position again. The opening and closing state of the elastic block 45 can be controlled by a mechanical button.

[0039] It is worth noting that: through the setting of this device, the raised position at the bottom of the part 47 is prevented from being lifted up high when the part 47 is placed, which affects the placement of the part 47. After the measurement of the part 47 is completed, the part 47 can be pressed down again after the clamping state of the part 47 is released, so that the raised bottom surface of the part 47 pushes the support rod 11 at this position down a distance again, so that after the limit rod 21 slides out of the limit groove 19, the bottom surface of the pushing block 22 pushes the first oblique tooth groove 24 again, so that the lifting block 20 rotates a certain angle. Thereafter, the part 47 is released, and the second spring 27 rebounds, so that the limit rod 21 moves up and slides into the limit groove 19 again, which can push the support rod 11 at this position to move up to the highest point again, and be in the same plane with the top of the support rod 11 at other positions, so as to facilitate the support and fixation of other parts 47. Example 2

[0040] See also Figures 1-12Example 2 is described. This example further illustrates Example 1. The calibration mechanism 5 shown in the figure also includes multiple groups of fixed cylinders 34 fixedly mounted on the lifting frame 6. A lifting column 35 is slidably connected to the fixed cylinder 34 in the vertical direction. The bottom of the lifting column 35 is fixedly connected to a third tension spring 36 fixedly connected to the fixed cylinder 34. The top surface of the lifting column 35 is rotatably connected to a telescopic sleeve rod 37. The positioning rod 7 is fixedly mounted on the lower side of one end of the telescopic sleeve rod 37.

[0041] The calibration mechanism 5 also includes a first electric telescopic rod 38 fixedly mounted on the fixed plate 2. The telescopic end of the first electric telescopic rod 38 is fixedly connected to the bottom surface of the lifting frame 6. The top surface of the fixed cylinder 34 is rotatably connected to a limit block 39 for limiting the lifting column 35.

[0042] In this embodiment, the height of the lifting frame 6 can be controlled by controlling the telescopic length of the first electric telescopic rod 38. The height of the lifting frame 6 is adjusted so that it is slightly higher than the top surface of the part 47. The telescopic sleeve 37 is pulled up to make the lifting column 35 move up in the fixed tube 34, and the telescopic sleeve 37 is rotated to adjust the length of the telescopic sleeve 37. The positioning rod 7 is adjusted to the required positioning position, the telescopic sleeve 37 is released, the third tension spring 36 is pulled back, and the limit block 39 is rotated to limit the position of the telescopic sleeve 37. When the positioning of multiple groups of positioning rods 7 is completed, as the bottom surface of the part 47 is lifted, it can be ensured that the positions where the bottoms of several positioning rods 7 conflict with each other are all in the same horizontal plane. At this time, the top view size taken from the top view of the plane is relatively accurate.

[0043] It should be noted that after the positioning and clamping of part 47 is completed, it is necessary to release the limiting state of the limit block 39, pull the telescopic sleeve 37 and rotate it, so that the positioning rod 7 is rotated to a position away from part 47 to avoid interference with the top view of part 47 during shooting. Example 3

[0044] See also Figures 1-12 Example 3 is described. This example further describes Example 1. The clamping mechanism 13 shown in the figure includes a plurality of second electric telescopic rods 40 fixedly mounted on the lifting frame 6. The telescopic ends of the second electric telescopic rods 40 are fixedly connected to a guide frame 41. A guide rod 42 is connected to the guide frame 41 for sliding in a vertical direction. A clamping block 43 for clamping and fixing a part 47 is fixedly connected to the side surface of the bottom end of the guide rod 42. A fixing nut 44 for limiting and fixing the position of the guide rod 42 is provided on the guide frame 41.

[0045] In this embodiment, the clamping blocks 43 of appropriate shapes are replaced on the guide rod 42 according to the shapes of the two sides of the part 47. After the bottom end of the part 47 is lifted up and the top surface to be measured is tightly in contact with the bottom of the positioning rod 7, the second electric telescopic rod 40 can be controlled to push the guide frame 41 to the two sides of the part 47. After adjusting the height of the guide rod 42 so that the clamping blocks 43 just stably clamp the two sides of the part 47, the position of the guide rod 42 is fixed by the fixing nut 44 to complete the clamping operation on both sides of the part 47. Thereafter, the auxiliary structures such as the airbag 12, the positioning rod 7, and the support rod 11 can be removed. The part 47 can be fixed and clamped only by the clamping blocks 43 on both sides, thereby reducing the impact on the image of the part 47.

[0046] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0047] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An auxiliary fixture for an image measuring instrument used for parts inspection, characterized in that: include: The machine body is fixedly connected to two sets of fixed plates, the machine body is provided with a sliding frame capable of controlling horizontal sliding, and the sliding frame is provided with a measuring instrument capable of horizontal sliding adjustment; Also includes: The calibration mechanism includes a lifting frame connected to the fixed plates on both sides in a vertical sliding direction. The lifting frame is provided with multiple sets of positioning rods for positioning and resisting the positions that need to be in the same plane through the bottom ends of the positioning rods; The supporting mechanism includes a mounting plate connected to the top surface of the machine body in a horizontal sliding direction, a plurality of fixed tubes are fixedly connected to the mounting plate, and the plurality of fixed tubes are respectively connected to support rods in a vertical sliding direction. The mounting plate is fixedly connected to a plurality of air bags, and the plurality of air bags are respectively located between adjacent fixed tubes. The bottom of the part is lifted up by inflating the air bags so that the top surface of the part contacts the bottom surface of the plurality of positioning rods. The supporting mechanism also includes sliding blocks fixedly mounted on both sides of the mounting plate. A control member is provided in the fixed tube. The control member includes a limiting tube fixedly mounted in the fixed tube. The side of the limiting tube is evenly Multiple groups of limit grooves are provided, the outer wall of the support rod is movably connected to the inner wall of the limit tube, a lifting block is movably connected in the fixed tube, the top surface of the lifting block is fixedly connected to multiple groups of limit rods that can be plugged into the limit grooves in the vertical direction, the side of the support rod is fixedly connected to a push block that is slidably connected to the limit grooves in the vertical direction, a lifting ring is fixedly connected to the lifting block, and the upper side of the lifting ring is evenly provided with multiple groups of first oblique tooth grooves that can slide and fit with the bottom surface of the push block, the bottom of the limit tube is evenly provided with multiple groups of second oblique tooth grooves that can slide and fit with the top surface of the limit rod, and the top surface of the limit rod and the bottom surface of the push block are both inclined designs; The clamping mechanism is installed on the lifting frame and is used to clamp and fix the two sides of the adjusted parts.

2. The auxiliary fixture of an image measuring instrument for parts inspection according to claim 1, characterized in that: The control component also includes a first spring fixedly installed on the upper side of the lifting block, an inflator and deflation machine is fixedly connected to the sliding block, a delivery pipe is connected to the inflator and deflation machine, multiple groups of air bags are connected to the delivery pipe, and a second spring is fixedly connected to the bottom of the fixed pipe. The top surface of the second spring is rotatably fitted with the bottom surface of the lifting block. A driving component is provided on the mounting plate for synchronously controlling the support rod to move downward and moving the mounting plate away from the bottom of the part after the part is fixed and clamped.

3. The auxiliary fixture of an image measuring instrument for parts inspection according to claim 2, characterized in that: The driving member includes a first tension spring fixedly mounted on the sliding block, one end of the first tension spring is fixedly connected to the machine body, a sliding frame is slidably connected in the mounting plate, a plurality of connecting rods are evenly fixedly connected in the sliding frame, a plurality of connecting ropes are evenly fixedly connected on the side surfaces of the connecting rods, the connecting ropes pass through the mounting plate and the fixed tube, and are slidably connected to the mounting plate and the inner wall of the fixed tube, an end of the connecting rope away from the connecting rod is rotatably connected to the bottom surface of the lifting block through a rotating buckle, a second tension spring fixedly connected to the connecting rod is fixedly connected in the mounting plate, and the elastic force of the first tension spring is greater than the elastic force of the second tension spring.

4. The auxiliary fixture of an image measuring instrument for parts inspection according to claim 1, characterized in that: The calibration mechanism also includes multiple groups of fixed cylinders fixedly installed on the lifting frame, in which a lifting column is slidably connected in the vertical direction. The bottom of the lifting column is fixedly connected to a third tension spring fixedly connected to the fixed cylinder. The top surface of the lifting column is rotatably connected to a telescopic sleeve rod, and the positioning rod is fixedly installed on the lower side of one end of the telescopic sleeve rod.

5. The auxiliary fixture of an image measuring instrument for parts inspection according to claim 4, characterized in that: The calibration mechanism also includes a first electric telescopic rod fixedly mounted on the fixed plate, the telescopic end of the first electric telescopic rod is fixedly connected to the bottom surface of the lifting frame, and the top surface of the fixed cylinder is rotatably connected to a limit block for limiting the lifting column.

6. The auxiliary fixture of an image measuring instrument for parts inspection according to claim 1, characterized in that: The clamping mechanism includes multiple groups of second electric telescopic rods fixedly mounted on the lifting frame, the telescopic ends of the second electric telescopic rods are fixedly connected to the guide frame, a guide rod is slidably connected in the guide frame in the vertical direction, the bottom end side of the guide rod is fixedly connected to a clamping block for clamping and fixing the parts, and the guide frame is provided with a fixing nut for limiting and fixing the position of the guide rod.

7. The auxiliary fixture of an image measuring instrument for parts inspection according to claim 1, characterized in that: An elastic clamping block is arranged on the machine body, and a clamping groove capable of being clamped with one end of the elastic clamping block is opened on the side surface of the sliding block.

Images