Optical projection detection equipment

Abstract

The invention relates to optical projection detection equipment which comprises a machine base, a jacking base arranged on the machine base, a lifting barrel connected to the jacking base in a sealed and inserted mode, a workbench capable of horizontally moving on the lifting barrel and a projection box, and the projection box is arranged above the workbench and fixed to the machine base. The jacking seat is provided with a telescopic assembly used for pushing the lifting barrel to move up and down, an objective lens and a horizontal detector are arranged at the bottom of the projection box, a rectangular cavity is formed in the upper side face in the workbench, and a plurality of horizontal adjusting assemblies arranged in a rectangular array are arranged at the bottom of the rectangular cavity. A driving cavity formed in the workbench is formed in the lower side of the rectangular cavity, the driving cavity is rotationally connected with a plurality of driving shafts, the driving shafts are connected with a driving motor fixed to the workbench, and the driving shafts are in transmission with the horizontal adjusting assembly; the method has the advantage of being convenient to detect.

Description

Technical Field

[0001] The invention belongs to the technical field of optical projection detection, and in particular relates to an optical projection detection device. Background Art

[0002] Optical projection testing equipment, also known as optical projection measuring instrument, is a measuring instrument that uses the principle of optical projection to project the contour or surface of the workpiece to be measured onto an observation screen for measurement or comparison. It can efficiently detect the contour and surface condition of workpieces of various complex shapes, such as templates, stampings, taps and other tools and parts, and is widely used in the machinery manufacturing industry.

[0003] When using the optical projection measuring instrument in the prior art, the product to be tested is placed on a workbench, and then adjusted and tested according to the position of the product. However, since the side of the workbench is a horizontal plane, it is inconvenient to test when the surface contour of the product is uneven and a specific angle needs to be tested. Summary of the invention

[0004] The object of the present invention is to overcome the deficiencies of the prior art and provide an optical projection detection device that is convenient for detection.

[0005] The technical solution of the present invention is as follows:

[0006] An optical projection detection device comprises a machine base, a lifting seat arranged on the machine base, a lifting bucket sealed and plugged on the lifting seat, a workbench capable of horizontal displacement on the lifting bucket, and a projection box, wherein the projection box is arranged above the workbench and fixed on the machine base, the lifting seat is provided with a telescopic component for pushing the lifting bucket to move up and down, and an objective lens and a level detector are arranged at the bottom of the projection box;

[0007] A rectangular cavity is provided on the upper side of the workbench, a plurality of horizontal adjustment components arranged in a rectangular array are provided at the bottom of the rectangular cavity, a driving cavity provided on the workbench is provided at the lower side of the rectangular cavity, a plurality of driving shafts are rotatably connected to the driving cavity, the driving shafts are connected to driving motors fixed on the workbench, the driving shafts are driven by the horizontal adjustment components, an air intake cavity provided on the workbench is provided below the driving cavity, and the lower end of the horizontal adjustment component is sealed and connected to the air intake cavity;

[0008] The lifting bucket extracts air and injects it into the air inlet cavity when moving up and down;

[0009] The bottom of the horizontal adjustment component is connected to an exhaust control valve for controlling the internal pressure of the horizontal adjustment component. When the internal pressure of the horizontal adjustment component reaches a limited value, the horizontal adjustment component expands and contracts as the drive shaft rotates.

[0010] Further, the horizontal adjustment assembly includes a secondary telescopic assembly, a driven column sealed and plugged in the secondary telescopic assembly, a lifting rod sealed and plugged in the secondary telescopic assembly, a passive gear plate connected to the bottom of the driven column, a transmission assembly rotatably connected to the driving cavity, and an intake and exhaust control assembly rotatably and sealedly connected to the transmission assembly, the intake and exhaust control assembly is connected to the exhaust control valve and the intake cavity, and the transmission assembly is driven by the drive shaft;

[0011] The driven column is vertically provided with a center hole, and the secondary telescopic assembly is provided with a vertical cylinder sealably inserted in the center hole. The driven column is inserted into the rotating seal connected transmission assembly. When the intake and exhaust control assembly controls the gas to enter the transmission assembly, the air enters the secondary telescopic assembly along the driven column and the vertical cylinder and pushes the lifting rod to move upward, and when the pressure in the driven assembly reaches a limited value, the transmission assembly and the passive gear disk are transmitted to drive the driven column to work. When the driven column rotates, the secondary telescopic assembly telescopes and retracts with the rotation of the driven column.

[0012] Furthermore, the secondary telescopic assembly includes a fixed cylinder fixed in the rectangular cavity, a threaded ring threadedly connected in the fixed cylinder, a primary lifting barrel fixed on the threaded ring, a secondary lifting barrel threadedly connected in the primary lifting barrel, and a guide assembly arranged in the driven column, the driven column, the fixed cylinder, the threaded ring, the primary lifting barrel and the secondary lifting barrel are arranged coaxially, the upper end opening of the fixed cylinder is provided with a convex ring, the convex ring is smaller than the maximum diameter of the threaded ring but larger than the maximum diameter of the primary lifting barrel;

[0013] At least one guide bar is axially arranged on the outer circular side surface of the driven column, and the threaded ring and the secondary lifting barrel are both provided with guide grooves for the guide bar to be inserted, and the guide bar is provided with a notch whose length is greater than the axial length of the threaded ring, and when the threaded ring is located in the notch, the threaded ring contacts the convex ring, so that the threaded ring no longer rotates;

[0014] The guide assembly is arranged at the notch. When the primary lifting bucket moves upward, the guide assembly is not located in the notch. When the secondary lifting bucket moves downward and resets, the guide assembly is located in the notch.

[0015] A sealing barrel is fixed to the upper inner end of the secondary lifting barrel, a gap is provided between the sealing barrel and the secondary lifting barrel, the upper end of the driven column is a pressure barrel sealably inserted between the sealing barrel and the secondary lifting barrel, the guide assembly is connected to the pressure barrel, the sealing barrel is connected to the vertical cylinder, and the lifting rod is sealably inserted in the sealing barrel.

[0016] Furthermore, the upper end of the driven column is provided with plug-in holes having the same number as the guide strip, the guide assembly comprises a guide plate sealed and plugged into the plug-in hole, a chamber provided on the inner wall of the driven column, and an air supply module fixed on the driven column, the guide plate can be inserted into the notch from the plug-in hole, the cross section of the guide plate extending out of the notch is the same as the cross section of the guide strip, the chamber is respectively connected with the plug-in hole and the air supply module, and the plug-in hole is connected with the pressure barrel;

[0017] The air replenishing module is used to replenish gas into the chamber when the secondary lifting barrel is reset so that the guide plate can be inserted into the gap. The air replenishing module can discharge excess gas in the chamber when the primary lifting barrel is reset so that when the primary lifting barrel moves up to the gap, the guide plate retracts into the plug-in hole.

[0018] Further, the air supply module includes an air supply block fixed in the driven column, a displacement chamber provided on the upper and lower sides of the air supply block, a displacement piston sealingly and slidably connected in the displacement chamber, a second orifice plate with two ends fixed on the two displacement pistons, an air supply check valve and a spring check valve, the air supply block is provided with an air supply hole in the horizontal direction, the air supply block is provided with a plug-in strip hole in the vertical direction, the second orifice plate is plugged into the plug-in strip hole, and the hole on the second orifice plate corresponds to the left and right positions of the air supply hole when the displacement piston located below is moved up to a limit position;

[0019] The air supply hole is connected to the air supply one-way valve and the center hole, the air supply one-way valve is connected to the chamber, the driven column is provided with an air storage chamber, the air storage chamber is connected to the displacement chamber located below, the displacement chamber located above is connected to the chamber, the spring one-way valve is connected to the chamber, and when the one-time lifting barrel moves down and resets, the spring one-way valve discharges part of the gas in the chamber, so that when the one-time lifting barrel moves up to the uppermost end, the pressure in the chamber can drive the guide plate to retract into the plug hole.

[0020] Further, the transmission assembly includes a transmission cylinder rotatably connected to the driving cavity, a guide cylinder sealably inserted in the transmission cylinder, an active toothed disc fixed on the guide cylinder, and an air cylinder sealably passing through the active toothed disc and sealably inserted in the guide cylinder. The transmission cylinder is transmitted to the driving shaft, the guide cylinder rotates with the rotation of the transmission cylinder, the air cylinder is rotatably connected to the guide cylinder, the active toothed disc gradually moves up and meshes with the passive toothed disc as the pressure of the transmission cylinder increases, the transmission cylinder is fixed with a return spring fixed to the guide cylinder, two third orifice plates in sealing contact are arranged in the air cylinder, the upper third orifice plate is fixed to the air cylinder, the holes of the two third orifice plates correspond to each other up and down, and the lower third orifice plate is fixed with an orifice cylinder fixed to the transmission cylinder.

[0021] Furthermore, the intake and exhaust control assembly includes a connecting cylinder, a lifting one-way valve connected to the connecting cylinder, and an exhaust control module connected to the connecting cylinder, the exhaust control module is connected to the exhaust control valve, the connecting cylinder and the lifting one-way valve are both located in the intake cavity, and the connecting cylinder seal passes through the intake cavity and is connected to the transmission cylinder.

[0022] Furthermore, the exhaust control module includes a connecting block fixed inside the air intake chamber, a first orifice plate sealed and inserted in the connecting block, a magnet fixed on the first orifice plate, and an electromagnet located on the side of the magnet away from the first orifice plate, the electromagnet is fixed on the air intake chamber, the connecting block is provided with a through hole connected to the connecting tube and the exhaust control valve, the hole on the first orifice plate is offset up and down from the through hole and is connected when the electromagnet magnetically attracts the magnet.

[0023] Furthermore, a concave ring is provided on one side of the driven column above the notch, no guide strip is provided at the concave ring, a sealing ring is fixed inside the concave ring, the sealing ring is in contact and seal with the secondary telescopic cylinder, and the sealing ring is provided with a contact strip which is sealably inserted in the guide groove.

[0024] Furthermore, a displacement plate is slidably connected to the top of the lifting barrel, and the workbench is slidably connected to the displacement plate. First cavities are opened on the left and right sides of the top of the lifting barrel, a first intermediate cavity is arranged between the two first cavities, a first hole is opened on the top of the first cavity, the lifting barrel is fixedly connected with an outlet one-way valve connected with the first cavity, the lifting barrel is fixedly connected with an inlet one-way valve, an inlet valve connected with the first hole is fixed inside the displacement plate, second cavities are opened at the front and back of the top of the displacement plate, a second intermediate cavity is arranged between the two second cavities, the inlet valve is connected with the second cavity, and the second cavity is connected with the inlet cavity, the displacement plate and the workbench are both provided with a horizontal plate located in the first intermediate cavity and the second intermediate cavity, and the horizontal plate is connected with a displacement component fixed on the displacement plate or the lifting barrel to push the displacement plate and the workbench to move.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. The present invention realizes the supply of gas through the cooperation of the lifting bucket and the lifting seat, realizes the driving control of the horizontal adjustment component through the driving shaft, the driving motor, the exhaust control valve and the air intake chamber, and based on the change of the pressure of the horizontal adjustment component itself, only the horizontal adjustment component located below the product works, and realizes adaptive adjustment according to the shape of the product to be tested through the horizontal adjustment component, thereby ensuring the detection of the product;

[0027] 2. The present invention realizes pressure regulation of the chamber through the air supply module, thereby ensuring the normal operation of the secondary telescopic assembly.

[0028] In summary, the present invention has the advantage of being easy to detect. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 For the present invention Figure 1 A schematic diagram of the structure of the workbench part;

[0031] Figure 3 For the present invention Figure 1 A schematic diagram of a top view structure;

[0032] Figure 4 For the present invention Figure 2 A schematic diagram of the structure of a horizontal adjustment component;

[0033] Figure 5 For the present invention Figure 2 A schematic diagram of the enlarged structure of part A;

[0034] Figure 6 For the present invention Figure 4 A schematic diagram of the enlarged structure of part B;

[0035] Figure 7 For the present invention Figure 4 Schematic diagram of the enlarged structure of part C;

[0036] Figure 8 For the present invention Figure 6 Schematic diagram of the structure of the sealing ring.

[0037] In the figure, 1, projection box, 2, level detector, 3, workbench, 31, exhaust control valve, 32, drive motor, 33, drive shaft, 34, drive chamber, 4, displacement plate, 41, hand wheel, 42, intake valve, 43, screw, 5, machine base, 6, lifting seat, 61, electric telescopic rod, 7, lifting barrel, 71, intake check valve, 72, exhaust check valve, 8, objective lens, 9, level adjustment component, 91, exhaust control module, 911, connecting block, 912, first orifice plate, 913, electromagnet, 914, magnet, 92, air supply module, 921, second orifice plate, 922, displacement piston, 924, displacement chamber, 925, air supply block, 926. Air replenishment one-way valve, 927. Spring one-way valve, 93. Secondary lifting barrel, 94. Primary lifting barrel, 95. Threaded ring, 96. Air storage chamber, 97. Passive gear disc, 98. Air delivery cylinder, 981. Third orifice plate, 982. Orifice cylinder, 99. Lifting one-way valve, 90. Connecting cylinder, 901. Transmission cylinder, 902. Guide cylinder, 903. Active gear disc, 904. Chamber, 905. Driven column, 9051. Plug-in hole, 9052. Guide plate, 9053. Sealing ring, 9054. Contact strip, 906. Vertical cylinder, 907. Lifting rod, 9071. Lifting piston, 908. Fixed cylinder, 909. Inlet chamber, 10. Top plate. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0039] like Figure 1-8 As shown, an optical projection detection device includes a base 5, a lifting seat 6 arranged on the base 5, a lifting bucket 7 sealed and plugged on the lifting seat 6, a workbench 3 capable of horizontal displacement on the lifting bucket 7, and a projection box 1, wherein the projection box 1 is arranged above the workbench 3 and fixed on the base 5, the lifting seat 6 is provided with a telescopic component for pushing the lifting bucket 7 to move up and down, and the telescopic component can specifically adopt a telescopic device such as an electric telescopic rod 61, and an objective lens 8 and a level detector 2 are arranged at the bottom of the projection box 1;

[0040] The level detector 2 can specifically be a laser rangefinder, which detects the position of multiple points of the product placed on the flat plate to detect the levelness. Of course, other levelness testing instruments can also be used;

[0041] A rectangular cavity is provided on the upper side of the workbench 3, and a plurality of horizontal adjustment components 9 arranged in a rectangular array are provided at the bottom of the rectangular cavity. A driving cavity 34 provided on the workbench 3 is provided on the lower side of the rectangular cavity. The driving cavity 34 is rotatably connected to a plurality of driving shafts 33, which are arranged front and back and driven by a driving wheel and a driving belt. One of the driving shafts 33 is connected to a driving motor 32 fixed on the workbench 3, and the driving shaft 33 is driven by the horizontal adjustment component 9. An air inlet cavity 909 provided on the workbench 3 is provided below the driving cavity 34, and the lower end of the horizontal adjustment component 9 is sealed and connected to the air inlet cavity 909.

[0042] The lifting bucket 7 extracts air and injects it into the air inlet cavity 909 when it moves up and down;

[0043] The bottom of the horizontal adjustment component 9 is connected to an exhaust control valve 31 for controlling the internal pressure of the horizontal adjustment component 9. When the internal pressure of the horizontal adjustment component 9 reaches a limited value, the horizontal adjustment component 9 rotates and expands and contracts with the driving shaft 33;

[0044] When in use, the product to be tested is placed on the horizontal adjustment component 9, and then the horizontal degree is tested. After the test is completed, the lifting barrel 7 moves up to extract air and moves down. At this time, the personnel presses the product to be tested with their hands, and the lifting barrel 7 injects air into the air inlet chamber 909 when it moves down. At this time, the horizontal adjustment component 9 moves up, and for the horizontal adjustment component 9 in contact with the product to be tested, since the personnel press the product to be tested with their hands, the internal pressure component of the horizontal adjustment component 9 in contact with the product to be tested increases until it reaches the limit value. At this time, the personnel releases the product to be tested, and the driving motor 32 drives the horizontal adjustment component 9 in contact with the product to be tested to move up through the driving shaft 33. After moving up a certain distance, the corresponding horizontal adjustment component 9 is controlled to stop moving up according to the horizontal degree, and the remaining horizontal adjustment components 9 move up normally until the upper side of the product to be tested is in a horizontal state, and then the projector box 1 can be used for testing;

[0045] Preferably, a top plate 10 is placed on the upper side of the rectangular cavity, and when testing a flat object, the top plate 10 can be used for testing;

[0046] The circles or lines formed between the overhead level adjustment components 9 are fixed, so the circles or lines at the fixed points can be removed by an algorithm during the projection test.

[0047] In this embodiment, the horizontal adjustment assembly 9 includes a secondary telescopic assembly, a driven column 905 sealed and plugged into the secondary telescopic assembly, a lifting rod 907 sealed and plugged into the secondary telescopic assembly through a lifting piston 9071, a passive gear plate 97 connected to the bottom of the driven column 905, a transmission assembly rotatably connected to the drive chamber 34, and an intake and exhaust control assembly rotatably and sealedly connected to the transmission assembly, the intake and exhaust control assembly is connected to the exhaust control valve 31 and the intake chamber 909, and the transmission assembly is driven by the drive shaft 33;

[0048] The driven column 905 is vertically provided with a center hole, and the secondary telescopic assembly is provided with a vertical cylinder 906 which is sealed and plugged into the center hole. The driven column 905 is plugged into the rotating seal and connected to the transmission assembly. When the air intake and exhaust control assembly controls the gas to enter the transmission assembly, the air enters the secondary telescopic assembly along the driven column 905 and the vertical cylinder 906 and pushes the lifting rod 907 to move upward. When the pressure in the driven assembly reaches a limited value, the transmission assembly and the passive gear disc 97 are transmitted to drive the driven column 905 to work. When the driven column 905 rotates, the secondary telescopic assembly telescopes with the rotation of the driven column 905.

[0049] When in use, the air intake and exhaust control assembly controls the air self-transmission assembly, the driven column 905, the vertical cylinder 906 and pushes the lifting rod 907 to move upward. When the lifting rod 907 no longer moves upward, the transmission assembly extends and engages with the passive gear plate 97 for transmission. The transmission assembly drives the driven column 905 to rotate, and the driven column 905 drives the secondary telescopic assembly to telescope and adjust.

[0050] When resetting is required, the drive shaft 33 is flipped, the secondary telescopic assembly is reset, and then the intake and exhaust control assembly controls the gas discharge, and the transmission assembly is reset.

[0051] In this embodiment, the secondary telescopic assembly includes a fixed cylinder 908 fixed in a rectangular cavity, a threaded ring 95 threadedly connected in the fixed cylinder 908, a primary lifting barrel 94 fixed on the threaded ring 95, a secondary lifting barrel 93 threadedly connected in the primary lifting barrel 94, and a guide assembly arranged in a driven column 905. The driven column 905, the fixed cylinder 908, the threaded ring 95, the primary lifting barrel 94 and the secondary lifting barrel 93 are coaxially arranged. The upper opening of the fixed cylinder 908 is provided with a convex ring, which is smaller than the maximum diameter of the threaded ring 95 but larger than the maximum diameter of the primary lifting barrel 94.

[0052] The outer side of the driven column 905 is provided with three guide strips along the axial direction. The threaded ring 95 and the secondary lifting barrel 93 are provided with guide grooves for the guide strips to be inserted. The guide strip is provided with a notch whose length is greater than the axial length of the threaded ring 95. When the threaded ring 95 is located in the notch, the threaded ring 95 contacts the convex ring, so that the threaded ring 95 no longer rotates.

[0053] The guide assembly is arranged at the notch. When the primary lifting bucket 94 moves upward, the guide assembly is not located in the notch. When the secondary lifting bucket 93 moves downward and resets, the guide assembly is located in the notch.

[0054] A sealing barrel is fixed to the upper inner end of the secondary lifting barrel 93, and a gap is provided between the sealing barrel and the secondary lifting barrel 93. The upper end of the driven column 905 is a pressure barrel that is sealed and plugged between the sealing barrel and the secondary lifting barrel 93. The guide assembly is connected to the pressure barrel, the sealing barrel is connected to the vertical cylinder 906, and the lifting rod 907 is sealed and plugged into the sealing barrel.

[0055] When in use, the driven column 905 drives the threaded ring 95 and the secondary lifting barrel 93 to rotate through the guide bar, and the threaded ring 95 rotates and moves upward. At this time, as the sealing cylinder moves upward, the pressure between the sealing barrel and the pressure barrel decreases and the air in the guide component is extracted. When the threaded ring 95 is located at the notch, the guide component retracts into the driven column 905, and then the threaded ring 95 contacts the convex ring and stops rotating. The secondary lifting barrel 93 continues to rotate and move upward until the product adjustment is completed. When the driven column 905 reverses, the secondary lifting barrel 93 moves downward and resets. At this time, the guide component gradually resets and completes its extension after the secondary lifting barrel 93 resets. At this time, the guide component can drive the threaded ring 95 to rotate and move downward to drive the threaded ring 95 to reset.

[0056] Precise adjustment can be achieved through the thread to ensure horizontal adjustment.

[0057] In this embodiment, the upper end of the driven column 905 is provided with plug holes 9051 having the same number as the guide strips, and the guide assembly includes a guide plate 9052 sealed and plugged into the plug hole 9051, a chamber 904 provided on the inner wall of the driven column 905, and an air supply module 92 fixed on the driven column 905, the guide plate 9052 can be inserted into the notch from the plug hole 9051, and the cross section of the guide plate 9052 extending out of the notch is the same as the cross section of the guide strip, the chamber 904 is respectively connected with the plug hole 9051 and the air supply module 92, and the plug hole 9051 is connected with the pressure barrel;

[0058] The air supply module 92 is used to supply air into the chamber 904 when the secondary lifting barrel 93 is reset, so that the guide plate 9052 can be inserted into the gap. The air supply module 92 can discharge the excess air in the chamber 904 when the primary lifting barrel 94 is reset, so that when the primary lifting barrel 94 moves up to the gap, the guide plate 9052 is retracted into the plug hole 9051;

[0059] When in use, the primary lifting barrel 94 moves upward. During the upward movement, the pressure between the sealing barrel and the pressure barrel decreases and the air in the chamber 904 is extracted until the guide plate 9052 retracts into the plug hole 9051. Then the secondary lifting barrel 93 continues to move upward. Through the setting of the chamber 904, the damage of the guide plate 9052 due to excessive negative pressure is reduced. During the upward movement of the secondary lifting barrel 93, the air replenishing module 92 gradually replenishes air into the chamber 904 as the pressure of the chamber 904 decreases, so that before the secondary lifting barrel 93 moves down and resets, the guide plate 9052 extends out of the gap to ensure the normal downward movement of the primary lifting barrel 94. When the primary lifting barrel 94 moves to the bottom, excess gas is discharged through the air replenishing module 92.

[0060] In this embodiment, the air supply module 92 includes an air supply block 925 fixed in the driven column 905, a displacement chamber 924 opened on the upper and lower sides of the air supply block 925, a displacement piston 922 sealed and slidably connected in the displacement chamber 924, a second orifice plate 921 fixed at both ends on the two displacement pistons 922, an air supply check valve 926 and a spring check valve 927, the air supply block 925 is provided with air supply holes in the horizontal direction, the air supply block 925 is provided with plug-in strip holes in the vertical direction, the second orifice plate 921 is plugged into the plug-in strip holes, and the holes on the second orifice plate 921 correspond to the left and right positions of the air supply holes when the displacement piston 922 located below moves up to a limit position;

[0061] The air supply hole is connected to the air supply one-way valve 926 and the center hole, the air supply one-way valve 926 is connected to the chamber 904, the driven column 905 is provided with an air storage chamber 96, the air storage chamber 96 is connected to the displacement chamber 924 located below, the displacement chamber 924 located above is connected to the chamber 904, the spring one-way valve 927 is connected to the chamber 904, when the lifting barrel 94 moves down and resets, the spring one-way valve 927 discharges part of the gas in the chamber 904, so that when the lifting barrel 94 moves up to the uppermost end, the pressure in the chamber 904 can drive the guide plate 9052 to retract into the plug-in hole 9051, and the air storage chamber 96 is connected to a valve nozzle fixed on the driven column 905, which is used to inject air into the air storage chamber 96.

[0062] When the secondary lifting barrel 93 moves upward, since the guide plate 9052 has retracted into the plug hole 9051, and when the secondary lifting barrel 93 continues to move upward, the pressure in the chamber 904 continues to decrease. When the pressure of the air storage chamber 96 is greater than the pressure of the chamber 904, the displacement piston 922 moves upward, so that the air replenishing hole is connected, and air enters the chamber 904 from the center hole to replenish the air. When the primary lifting barrel 94 moves downward and resets, since a certain amount of air is replenished in the chamber 904, the pressure in the chamber 904 increases after the primary lifting barrel 94 moves downward and resets. As the pressure in the chamber 904 increases, the spring one-way valve 927 opens and discharges part of the air until the pressure in the chamber 904 is in the initial state, thereby ensuring subsequent normal use.

[0063] In this embodiment, the transmission assembly includes a transmission cylinder 901 rotatably connected to the drive chamber 34, a guide cylinder 902 sealed and plugged in the transmission cylinder 901, an active toothed disc 903 fixed on the guide cylinder 902, and an air cylinder 98 sealed and passed through the active toothed disc 903 and sealed and plugged in the guide cylinder 902. The transmission cylinder 901 is transmitted with the drive shaft 33, the guide cylinder 902 rotates as the transmission cylinder 901 rotates, the air cylinder 98 is rotatably connected with the guide cylinder 902, the active toothed disc 903 gradually moves up and meshes with the passive toothed disc 97 as the pressure of the transmission cylinder 901 increases, the transmission cylinder 901 is fixed with a return spring fixed with the guide cylinder 902, and two third orifice plates 981 in sealing contact are arranged in the air cylinder 98, the third orifice plate 981 located at the top is fixed with the air cylinder 98, the holes of the two third orifice plates 981 correspond to each other up and down, and the third orifice plate 981 located at the bottom is fixed with an orifice cylinder 982 fixed on the transmission cylinder 901;

[0064] When in use, due to the pressure of the product to be tested and the personnel, some of the lifting rods 907 cannot move up, while the other lifting rods 907 continue to move up, which results in the lifting rods 907 not moving up under a pressure slightly greater than the pressure of the lifting rods 907 moving up. At this time, the guide cylinder 902 moves up and pushes the active toothed disc 903 to move up and approach the passive toothed disc 97. Then the driving shaft 33 rotates a certain angle, such as 30°, 45°, etc., so that the holes of the two third orifice plates 981 are misaligned up and down, and the lifting rods 907 are positioned. Then, air is added to the air intake chamber 909 through the lifting barrel 7, so that the active toothed disc 903 moves up again for a distance, so that the active toothed disc 903 and the passive toothed disc 97 are engaged, and the active toothed disc 903 and the passive toothed disc 97 of the other level adjustment components 9 in contact with the product to be tested do not move up a certain distance, so they will not engage, thereby ensuring use;

[0065] When resetting is required, the exhaust can be controlled by the intake and exhaust control assembly and the exhaust control valve 31. After the exhaust is completed, the third orifice plate 981 located below is driven by the drive shaft 33 to rotate and reset.

[0066] In this embodiment, the intake and exhaust control assembly includes a connecting cylinder 90, a lifting check valve 99 connected to the connecting cylinder 90, and an exhaust control module 91 connected to the connecting cylinder 90, the exhaust control module 91 is connected to the exhaust control valve 31, the connecting cylinder 90 and the lifting check valve 99 are both located in the intake cavity 909, the connecting cylinder 90 seals through the intake cavity 909 and is connected to the transmission cylinder 901;

[0067] When in use, the gas in the air inlet chamber 909 is controlled by lifting the one-way valve 99 to enter the transmission cylinder 901 through the connecting cylinder 90, and the exhaust is controlled by the exhaust control module 91.

[0068] In this embodiment, the exhaust control module 91 includes a connecting block 911 fixed inside the air intake chamber 909, a first orifice plate 912 sealed and plugged into the connecting block 911, a magnet 914 fixed on the first orifice plate 912, and an electromagnet 913 located on the side of the magnet 914 away from the first orifice plate 912, the electromagnet 913 is fixed on the air intake chamber 909, the connecting block 911 is provided with a through hole connected to the connecting cylinder 90 and the exhaust control valve 31, the hole on the first orifice plate 912 is offset from the through hole up and down and is connected when the electromagnet 913 magnetically attracts the magnet 914;

[0069] When in use, the displacement of the magnet 914 is achieved by controlling the magnetic pole conversion of the electromagnet 913 , and the corresponding first orifice plate 912 is driven by the magnet 914 , thereby achieving the control of the exhaust of the connecting block 911 .

[0070] In this embodiment, a concave ring is provided on one side of the driven column 905 located above the notch, and no guide strip is provided at the concave ring. A sealing ring 9053 is fixed in the concave ring, and the sealing ring 9053 is in contact and sealed with the secondary telescopic cylinder. The sealing ring 9053 is provided with a contact strip 9054 which is sealed and plugged into the guide groove.

[0071] When in use, the sealing contact between the secondary telescopic cylinder and the driven column 905 is achieved through the sealing ring 9053 and the contact strip 9054 to ensure sealing;

[0072] In the present embodiment, a displacement plate 4 is slidably connected to the top of the lifting barrel 7, and the workbench 3 is slidably connected to the displacement plate 4. First cavities are opened on the left and right sides of the top of the lifting barrel 7, a first intermediate cavity is arranged between the two first cavities, a first hole is opened on the top of the first cavity, the lifting barrel 7 is fixedly connected with an outlet check valve 72 connected with the first cavity, the lifting barrel 7 is fixedly connected with an inlet check valve 71, an inlet valve 42 connected with the first hole is fixed inside the displacement plate 4, second cavities are opened at the front and back of the top of the displacement plate 4, a second intermediate cavity is arranged between the two second cavities, the inlet valve 42 is connected with the second cavity, and the second cavity is connected with the inlet cavity 909, the displacement plate 4 and the workbench 3 are both provided with a horizontal plate located in the first intermediate cavity and the second intermediate cavity, the horizontal plate is connected with a displacement assembly fixed on the displacement plate 4 or the lifting barrel 7, so as to push the displacement plate 4 and the workbench 3 to move;

[0073] When in use, the displacement plate 4 is sealed with the lifting bucket 7 and the workbench 3, and the lifting bucket 7 is lifted and displaced, so that air enters the lifting bucket 7 from the air inlet check valve 71 and enters the first cavity from the air outlet check valve 72. The air in the first cavity enters the second cavity through the first hole and the air inlet valve 42, and enters the air inlet cavity 909 through the second cavity. When the horizontal adjustment is completed, the displacement can be performed through the displacement assembly;

[0074] The displacement assembly is specifically a lead screw 43 and a hand wheel 41. The lead screw 43 is threadedly connected to the cross plate. By rotating the lead screw 43, the cross plate is displaced and the corresponding displacement plate 4 or workbench 3 is displaced.

[0075] Preferably, the displacement assembly can also be replaced by an electric slide rail or the like.

[0076] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An optical projection detection device, characterized in that: It includes a machine base, a lifting seat arranged on the machine base, a lifting bucket sealed and plugged on the lifting seat, a workbench capable of horizontal displacement on the lifting bucket, and a projection box, wherein the projection box is arranged above the workbench and fixed on the machine base, the lifting seat is provided with a telescopic component for pushing the lifting bucket to move up and down, and an objective lens and a level detector are arranged at the bottom of the projection box; A rectangular cavity is provided on the upper side of the workbench, a plurality of horizontal adjustment components arranged in a rectangular array are provided at the bottom of the rectangular cavity, a driving cavity provided on the workbench is provided at the lower side of the rectangular cavity, a plurality of driving shafts are rotatably connected to the driving cavity, the driving shafts are connected to driving motors fixed on the workbench, the driving shafts are driven by the horizontal adjustment components, an air intake cavity provided on the workbench is provided below the driving cavity, and the lower end of the horizontal adjustment component is sealed and connected to the air intake cavity; The lifting bucket extracts air and injects it into the air inlet cavity when moving up and down; The bottom of the horizontal adjustment component is connected to an exhaust control valve for controlling the internal pressure of the horizontal adjustment component. When the internal pressure of the horizontal adjustment component reaches a limited value, the horizontal adjustment component expands and contracts as the drive shaft rotates.

2. The optical projection detection device according to claim 1, characterized in that: The horizontal adjustment assembly includes a secondary telescopic assembly, a driven column sealed and plugged in the secondary telescopic assembly, a lifting rod sealed and plugged in the secondary telescopic assembly, a passive gear plate connected to the bottom of the driven column, a transmission assembly rotatably connected to the driving cavity, and an intake and exhaust control assembly rotatably and sealedly connected to the transmission assembly, the intake and exhaust control assembly is connected to the exhaust control valve and the intake cavity, and the transmission assembly is driven by the drive shaft; The driven column is vertically provided with a center hole, and the secondary telescopic assembly is provided with a vertical cylinder sealably inserted in the center hole. The driven column is inserted into the rotating seal connected transmission assembly. When the intake and exhaust control assembly controls the gas to enter the transmission assembly, the air enters the secondary telescopic assembly along the driven column and the vertical cylinder and pushes the lifting rod to move upward, and when the pressure in the driven assembly reaches a limited value, the transmission assembly and the passive gear disk are transmitted to drive the driven column to work. When the driven column rotates, the secondary telescopic assembly telescopes and retracts with the rotation of the driven column.

3. The optical projection detection device according to claim 2, characterized in that: The secondary telescopic assembly includes a fixed cylinder fixed in the rectangular cavity, a threaded ring threadedly connected in the fixed cylinder, a primary lifting barrel fixed on the threaded ring, a secondary lifting barrel threadedly connected in the primary lifting barrel, and a guide assembly arranged in the driven column. The driven column, the fixed cylinder, the threaded ring, the primary lifting barrel and the secondary lifting barrel are arranged coaxially. The upper end opening of the fixed cylinder is provided with a convex ring, which is smaller than the maximum diameter of the threaded ring but larger than the maximum diameter of the primary lifting barrel. At least one guide bar is axially arranged on the outer circular side surface of the driven column, and the threaded ring and the secondary lifting barrel are both provided with guide grooves for the guide bar to be inserted, and the guide bar is provided with a notch whose length is greater than the axial length of the threaded ring, and when the threaded ring is located in the notch, the threaded ring contacts the convex ring, so that the threaded ring no longer rotates; The guide assembly is arranged at the notch. When the primary lifting bucket moves upward, the guide assembly is not located in the notch. When the secondary lifting bucket moves downward and resets, the guide assembly is located in the notch. A sealing barrel is fixed to the upper inner end of the secondary lifting barrel, a gap is provided between the sealing barrel and the secondary lifting barrel, the upper end of the driven column is a pressure barrel sealably inserted between the sealing barrel and the secondary lifting barrel, the guide assembly is connected to the pressure barrel, the sealing barrel is connected to the vertical cylinder, and the lifting rod is sealably inserted in the sealing barrel.

4. The optical projection detection device according to claim 3, characterized in that: The upper end of the driven column is provided with the same number of plug-in holes as the guide strips, the guide assembly comprises a guide plate sealed and plugged into the plug-in hole, a chamber provided on the inner wall of the driven column, and an air supply module fixed on the driven column, the guide plate can be inserted into the notch from the plug-in hole, the cross section of the guide plate extending out of the notch is the same as the cross section of the guide strip, the chamber is respectively connected with the plug-in hole and the air supply module, and the plug-in hole is connected with the pressure barrel; The air replenishing module is used to replenish gas into the chamber when the secondary lifting barrel is reset so that the guide plate can be inserted into the gap. The air replenishing module can discharge excess gas in the chamber when the primary lifting barrel is reset so that when the primary lifting barrel moves up to the gap, the guide plate retracts into the plug-in hole.

5. The optical projection detection device according to claim 4, characterized in that: The air supply module includes an air supply block fixed in the driven column, a displacement chamber provided on the upper and lower sides of the air supply block, a displacement piston sealingly and slidingly connected in the displacement chamber, a second orifice plate with two ends fixed on the two displacement pistons, an air supply check valve and a spring check valve, the air supply block is provided with an air supply hole in the horizontal direction, the air supply block is provided with a plug-in strip hole in the vertical direction, the second orifice plate is plugged into the plug-in strip hole, and the hole on the second orifice plate corresponds to the left and right positions of the air supply hole when the displacement piston located below is limited upward; The air supply hole is connected to the air supply one-way valve and the center hole, the air supply one-way valve is connected to the chamber, the driven column is provided with an air storage chamber, the air storage chamber is connected to the displacement chamber located below, the displacement chamber located above is connected to the chamber, the spring one-way valve is connected to the chamber, and when the one-time lifting barrel moves down and resets, the spring one-way valve discharges part of the gas in the chamber, so that when the one-time lifting barrel moves up to the uppermost end, the pressure in the chamber can drive the guide plate to retract into the plug hole.

6. The optical projection detection device according to claim 5, characterized in that: The transmission assembly includes a transmission cylinder rotatably connected to the driving cavity, a guide cylinder sealably inserted in the transmission cylinder, an active toothed disc fixed on the guide cylinder, and an air cylinder sealably passing through the active toothed disc and sealably inserted in the guide cylinder. The transmission cylinder is transmitted to the driving shaft, the guide cylinder rotates as the transmission cylinder rotates, the air cylinder is rotatably connected to the guide cylinder, the active toothed disc gradually moves up as the pressure of the transmission cylinder increases and meshes with the passive toothed disc, the transmission cylinder is fixed with a return spring fixed to the guide cylinder, two third orifice plates in sealing contact are arranged in the air cylinder, the third orifice plate located above is fixed to the air cylinder, the holes of the two third orifice plates correspond to each other up and down, and the third orifice plate located below is fixed with an orifice cylinder fixed to the transmission cylinder.

7. The optical projection detection device according to claim 6, characterized in that: The intake and exhaust control assembly includes a connecting cylinder, a lifting one-way valve connected to the connecting cylinder, and an exhaust control module connected to the connecting cylinder. The exhaust control module is connected to the exhaust control valve. The connecting cylinder and the lifting one-way valve are both located in the intake cavity. The connecting cylinder seal passes through the intake cavity and is connected to the transmission cylinder.

8. The optical projection detection device according to claim 7, characterized in that: The exhaust control module includes a connecting block fixed inside the air intake chamber, a first orifice plate sealed and inserted in the connecting block, a magnet fixed on the first orifice plate, and an electromagnet located on the side of the magnet away from the first orifice plate. The electromagnet is fixed on the air intake chamber. The connecting block is provided with a through hole connected to the connecting tube and the exhaust control valve. The hole on the first orifice plate is offset from the through hole up and down and is connected when the electromagnet magnetically attracts the magnet.

9. The optical projection detection device according to claim 8, characterized in that: A concave ring is provided on one side of the driven column above the notch, no guide strip is provided at the concave ring, a sealing ring is fixed inside the concave ring, the sealing ring is in contact and sealed with the secondary telescopic cylinder, and the sealing ring is provided with a contact strip which is sealably inserted in the guide groove.

10. The optical projection detection device according to claim 9, characterized in that: A displacement plate is slidably connected to the top of the lifting bucket, and the workbench is slidably connected to the displacement plate. First cavities are opened on the left and right sides of the top of the lifting bucket, a first intermediate cavity is arranged between the two first cavities, a first hole is opened on the top of the first cavity, the lifting bucket is fixedly connected with an outlet one-way valve connected with the first cavity, the lifting bucket is fixedly connected with an inlet one-way valve, an inlet valve connected with the first hole is fixed inside the displacement plate, second cavities are opened at the front and back of the top of the displacement plate, a second intermediate cavity is arranged between the two second cavities, the inlet valve is connected with the second cavity, and the second cavity is connected with the inlet cavity, the displacement plate and the workbench are both provided with a horizontal plate located in the first intermediate cavity and the second intermediate cavity, the horizontal plate is connected with a displacement component fixed on the displacement plate or the lifting bucket, so as to push the displacement plate and the workbench to move.

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