Optical axis parallelism detection device

Abstract

The present invention belongs to the technical field of optical equipment, and specifically is an optical axis parallelism detection device, comprising a positioning guide rail, one end of which is provided with a reflector; the other end of the positioning guide rail is fixedly connected to a simulated light source; one side of the positioning guide rail is provided with an image processing device, and a clamp assembly is provided between the image processing device and the positioning guide rail; the optical axis parallelism detection device described in the present invention is provided with a positioning cylinder, and a plurality of pressure sensors are provided on the positioning cylinder, and the vacuum suction cup at the end of the positioning rod is adsorbed to the optical lens of the device to be tested, and then the position of the device to be tested is adjusted by the pressure sensor, so that the center line of the optical lens of the device to be tested is adjusted to coincide with the center line of the reflector. This detection method has small error and is convenient and easy to operate.

Description

Technical Field

[0001] The invention belongs to the technical field of optical equipment, in particular to an optical axis parallelism detection device. Background Art

[0002] Optical axis parallelism is an important indicator to measure the performance of an optoelectronic stabilized platform. Whether it is an airborne optoelectronic reconnaissance pod, or a vehicle-mounted or ship-mounted optoelectronic reconnaissance device, there are index requirements for the optical axis parallelism of the multi-spectral optical payload it carries to ensure that different optical payloads obtain images or distance information of the same area.

[0003] At present, there is a method for measuring the parallelism of the optical axis using a parabolic reflector, such as a Chinese patent with publication number CN104567738B, a system and method for accurately measuring the parallelism of the optical axis; the system of this scheme includes an optical axis positioning guide rail fixed on a test bench and having a scale; a parabolic reflector locked on the optical axis positioning guide rail; a composite simulated light source locked on the optical axis positioning guide rail and positioned at the focus of the parabolic reflector; an image processing calculation unit electrically connected to the device to be tested;

[0004] The above scheme uses an optical axis positioning guide to accurately position the composite light source simulator at the focus of a large-aperture parabolic reflector to reduce measurement errors; image processing software is used to track and identify the optical axis offset off-target amount, eliminating the operator's subjective error in the optical axis deviation identification and calculation, and improving the measurement accuracy of the optical axis parallelism; however, in the actual detection process, it is necessary to adjust the center line of the optical lens of the device under test to coincide with the center line of the reflector in the preparation stage; during the detection process of the above scheme, when testing devices under test of different sizes, shapes, shell structures, and products, it is difficult to ensure that the optical lens on the device under test is in the same position on the device under test, so it is more difficult to adjust the position of the device under test; the staff needs to constantly adjust the clamping position of the fixture, and the adjustment needs to be made in multiple dimensions such as up, down, left, and right; so that the center line of the optical lens of the device under test coincides with the center line of the reflector after clamping; once an error occurs in the accuracy, it will affect the detection result; therefore, the fixture position adjustment process needs to be further optimized.

[0005] To this end, the present invention provides an optical axis parallelism detection device. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve the technical problem is: an optical axis parallelism detection device described in the present invention comprises a positioning rail, one end of which is provided with a reflector; the other end of which is fixedly connected with a simulated light source;

[0008] An image processing device is arranged on one side of the positioning rail close to one end of the simulated light source, and a clamp assembly is arranged between the image processing device and the positioning rail; the clamp assembly is used to clamp the device to be tested, and a positioning assembly capable of reciprocating movement is arranged between the clamp assembly and the simulated light source, and the distance of the reciprocating movement is a fixed distance;

[0009] The fixture assembly includes a pair of third hydraulic cylinders, which can relatively extend and retract to clamp the device under test and push the device under test to move horizontally; and a second hydraulic cylinder, which pushes the device under test to move vertically when the second hydraulic cylinder is extended and retracted;

[0010] The positioning assembly includes a positioning cylinder, a plurality of pressure sensors are circumferentially arranged on the inner wall of the positioning cylinder, and a positioning rod made of rubber material, one end of the positioning rod is inserted into the positioning cylinder, and the outer wall is in contact with the sensing end of the pressure sensor, and a vacuum suction cup is provided at one end of the positioning rod.

[0011] Preferably, the clamp assembly further comprises an annular frame, which is fixedly connected to the top end of the output end of the second hydraulic cylinder and is used to support the third hydraulic cylinder; the output end of the third hydraulic cylinder is provided with a first clamping plate.

[0012] Preferably, the positioning assembly also includes a support frame, a first hydraulic cylinder is provided at the bottom end of the support frame, and the first hydraulic cylinder is fixedly connected to the end of the positioning guide rail close to the simulated light source; the output end of the first hydraulic cylinder is connected to the bottom end of the support frame; a circular limit plate is provided at the end of the positioning rod away from the device to be tested; the diameter of the limit plate is larger than the diameter of the mouth of the positioning cylinder; the sensing end of the pressure sensor is provided with an arc plate, and the arc plate is attached to the annular circumferential surface of the positioning rod with the arc surface facing the pressure sensor.

[0013] Preferably, a conveyor is provided on the side of the annular frame away from the positioning guide rail, a pair of fixed frames are provided above the conveyor, a sliding guide rail is provided between the pair of fixed frames, and the sliding guide rail is slidably connected with a sliding member; a fourth hydraulic cylinder is provided on the side of the fixed frame, and the output end of the fourth hydraulic cylinder passes through the sliding guide rail and is connected to the sliding member; a connecting column is fixedly connected to the bottom end of the sliding member, and a mounting plate is fixedly connected to the bottom end of the connecting column, and a pair of fifth hydraulic cylinders are symmetrically provided on the top end of the mounting plate, a connecting frame is provided at the end of the output end of the fifth hydraulic cylinder, and a second clamping plate is fixedly connected to the bottom end of the connecting frame.

[0014] Preferably, a groove is formed on the clamping surface of the first clamping plate.

[0015] Preferably, a sixth hydraulic cylinder is fixedly connected to the side of the image processing device, a connecting rod is provided at the top of the output end of the sixth hydraulic cylinder, an annular ring is fixedly connected to the end of the connecting rod away from the sixth hydraulic cylinder, an annular airbag is provided on the inner ring of the annular ring, and the annular airbag surrounds the plug-in hole of the image processing device; the annular airbag is externally connected to a second air pump.

[0016] Preferably, the connecting member is specifically a connecting spring; both ends of the connecting spring are respectively connected to the receiving column and the fixing rod.

[0017] Preferably, a plurality of protrusions are evenly arranged on the surface of the annular airbag.

[0018] Preferably, a pair of docking plates are symmetrically arranged on both sides of the image processing device, a support plate is arranged on one side of the docking plate, a seventh hydraulic cylinder is installed on the side of the support plate, and a linkage plate is arranged between the output end of the seventh hydraulic cylinder and the docking plate; the docking plate can extend to the upper position of the image processing device.

[0019] Preferably, a buffer pad is provided at the top end of the receiving plate.

[0020] The beneficial effects of the present invention are as follows:

[0021] 1. The optical axis parallelism detection device described in the present invention is provided with a positioning cylinder, on which a plurality of pressure sensors are provided. The vacuum suction cup at the end of the positioning rod is adsorbed to the optical lens of the device to be tested, and the position of the device to be tested is adjusted by the pressure sensor so that the center line of the optical lens of the device to be tested is adjusted to coincide with the center line of the reflector. This detection method has small error and is convenient and easy to operate.

[0022] 2. The optical axis parallelism detection device described in the present invention, by setting an expansion airbag, after the first clamping plate clamps and fixes the device to be tested, starts the first air pump connected to the inflation tube, the first air pump inflates the inflation box through the inflation tube, the inflation box inflates the expansion airbag at the box mouth, the expansion airbag expands after being inflated, and when expanded, it squeezes the device to be tested clamped by the first clamping plate, that is, the device to be tested is fixed for the second time, thereby improving the stability of the clamping and fixation of the device to be tested. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] Figure 1 is a stereogram of the present invention;

[0025] Figure 2 is a schematic diagram of the position of the image processing device of the present invention;

[0026] Figure 3 It is a schematic diagram of the annular frame connection structure of the present invention;

[0027] Figure 4 It is a schematic diagram of the connection structure of the positioning tube of the present invention;

[0028] Figure 5 is a schematic diagram of a first splint of the present invention;

[0029] Figure 6 It is a schematic diagram of the annular frame connection structure of the present invention;

[0030] Figure 7 is a three-dimensional diagram of the positioning rod connection structure of the present invention;

[0031] Figure 8 is a schematic diagram of the connection structure of the pressure sensor of the present invention;

[0032] Fig. 9 is a schematic diagram of a conveyor of the present invention;

[0033] Fig.10 It is a schematic diagram of the position of the sliding guide rail of the present invention;

[0034] Fig.11 is a schematic diagram of the second splint connection structure of the present invention;

[0035] Fig.12 It is a schematic diagram of the position of the material receiving plate of the present invention;

[0036] Fig.13 is a schematic diagram of the connection structure of the image processing device of the present invention;

[0037] Fig.14 It is a schematic diagram of an annular airbag of the present invention.

[0038] In the figure: 1, positioning rail; 11, reflector; 12, simulated light source; 13, device to be tested; 14, image processing device; 2, second hydraulic cylinder; 21, annular frame; 22, third hydraulic cylinder; 23, first clamping plate; 231, groove; 3, support frame; 31, first hydraulic cylinder; 32, positioning cylinder; 33, pressure sensor; 34, arc plate; 35, positioning rod; 36, vacuum suction cup; 37, limit plate; 4, conveyor; 41. Fixed frame; 42. Sliding guide rail; 43. Sliding member; 431. Fourth hydraulic cylinder; 44. Connecting column; 45. Mounting plate; 46. Fifth hydraulic cylinder; 47. Connecting frame; 48. Second clamping plate; 5. Annular ring; 51. Annular airbag; 52. Sixth hydraulic cylinder; 53. Linking rod; 6. Supporting column; 61. Connecting member; 62. Fixed rod; 7. Receiving plate; 71. Linking plate; 72. Support plate; 73. Seventh hydraulic cylinder. DETAILED DESCRIPTION

[0039] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0040] The optical axis parallelism detection device is used to detect the optical axis parallelism of optoelectronic equipment such as laser rangefinders, and the optoelectronic equipment such as laser rangefinders is waiting for the detection device 13 to include a wire and a plug connector at the end of the wire;

[0041] The device to be tested 13 may be an optoelectronic device such as a laser rangefinder;

[0042] like Figures 1 to 9 As shown, an optical axis parallelism detection device according to an embodiment of the present invention comprises a positioning rail 1, a reflector 11 is disposed at one end of the positioning rail 1, and a simulated light source 12 is fixedly connected to the other end of the positioning rail 1;

[0043] An image processing device 14 is provided on one side of the positioning rail 1 close to one end of the simulated light source 12, and a fixture assembly is provided between the image processing device 14 and the positioning rail 1; the fixture assembly is used to clamp the device to be tested 13, and a positioning assembly capable of reciprocating movement is provided between the fixture assembly and the simulated light source 12, and the reciprocating distance is a fixed distance;

[0044] The fixture assembly includes a pair of third hydraulic cylinders 22, which can relatively retract to clamp the device under test 13 and push the device under test 13 to move horizontally; and a second hydraulic cylinder 2, which pushes the device under test 13 to move vertically when the second hydraulic cylinder 2 retracts;

[0045] The positioning assembly includes a positioning cylinder 32, a plurality of pressure sensors 33 are arranged circumferentially on the inner wall of the positioning cylinder 32, and a positioning rod 35 made of rubber material, one end of the positioning rod 35 is inserted into the positioning cylinder 32, and the outer wall is in contact with the sensing end of the pressure sensor 33, and one end of the positioning rod 35 is provided with a vacuum suction cup 36;

[0046] In the actual detection process, when testing the device 13 of different sizes, shapes, shell structures, and products, it is difficult to ensure that the optical lens on the device 13 is in the same position on the device 13, that is, it is difficult to ensure that the center line of the optical lens of the device 13 under test coincides with the center line of the reflector 11. Before the detection, the staff needs to constantly adjust the placement position of the device 13 under test, and the adjustment needs to be made in multiple dimensions up, down, left, and right, so that the center line of the optical lens of the device 13 under test coincides with the center line of the reflector after clamping; once an error occurs in the accuracy, it will affect the detection result; therefore, it is necessary to further optimize the fixture position adjustment process; to solve the above problems, the embodiment of the present invention provides a positioning component; when in use, it is predetermined that the center line of the optical lens of the device 13 under test is adjusted to When the center line of the positioning cylinder 32 coincides with the center line of the simulated light source 12 and the reflector 11, the pressure values ​​of different pressure sensors 33 are measured, that is, when the center line of the positioning rod 35 and the vacuum suction cup 36 coincides with the center line of the positioning cylinder 32, the center line of the simulated light source 12 and the reflector 11, and the pressure values ​​of different pressure sensors 33 are measured. When the center line of the vacuum suction cup 36 coincides with the center line of the positioning cylinder 32, it means that the center line of the optical lens on the device to be tested 13 coincides with the center line of the positioning cylinder 32 at the same time; the center line of the positioning cylinder 32 coincides with the center line of the simulated light source 12 and the reflector 11, so the center line of the device to be tested 13 coincides with the center line of the simulated light source 12 and the reflector 11; the detection requirements are met; specifically, the device to be tested 13 is clamped and fixed by the third hydraulic cylinder 22 in the clamp assembly, and then the staff clamps the vacuum suction cup 36 and the center line of the positioning cylinder 32. The suction cup 36 is adsorbed to the center of the optical lens of the device under test 13; and the plug connector at the end of the wire on the device under test 13 is inserted into the plug hole of the image processing device 14. At this time, the center line of the positioning cylinder 32 coincides with the center line of the simulated light source 12 and the reflector 11, but it is difficult to ensure that the center line of the vacuum suction cup 36 and the positioning rod 35 coincides with the center line of the positioning cylinder 32 and the center line of the simulated light source 12 and the reflector 11; this is because when the center line of the optical lens of the device under test 13 does not coincide with the center line of the positioning cylinder 32 and the center line of the simulated light source 12 and the reflector 11, the optical lens of the device under test 13 will drive the rubber positioning rod 35 to bend through the vacuum suction cup 36; the image processing device 14 uses an image processing system, including image digitization, Image enhancement and restoration, image digital coding, image segmentation, image recognition and image understanding, etc.; when working, the image processing device 14 receives the image signal sent by the device under test 13; then performs analysis and calculation, and finally analyzes the parallelism of the optical axis of the optical lens of the device under test 13; specifically, when adjusting the position of the device under test 13, the pressure sensor 33 is started, and the pressure sensor 33 receives the squeezing force of the positioning rod 35 located in the positioning tube 32 on the arc plate 34 through the arc plate 34, and the staff adjusts the output of the second hydraulic cylinder 2 and the third hydraulic cylinder 22 through the display value of the pressure sensor 33; the pressure sensor 33 stops when it reaches the preset pressure value, and at this time, the center line of the optical lens of the device under test 13 is adjusted to coincide with the center line of the reflector 11;That is, the optical lens on the device to be tested 13 is adjusted in multiple dimensions up, down, left, and right, so that the center line of the device to be tested 13 coincides with the center line of the reflector 11; this detection method has small errors and is convenient and easy to operate; it should be pointed out that before the detection, the vacuum suction cup 36 is first released from the adsorption of the optical lens of the device to be tested 13; then the first hydraulic cylinder 31 and the support frame 3 drive the positioning cylinder 32 away from the device to be tested 13, so that the positioning rod 35 drives the vacuum suction cup 36 away from the optical lens of the device to be tested 13; avoid blocking the reflected light of the reflector 11 during the detection process; specifically, during the detection, the simulated light source 12 is turned on, and the simulated light source 12 emits light to the reflector 11, and the light is reflected by the reflector 11 to the center of the optical lens of the device to be tested 13, and the parallelism of the optical axis of the device to be tested 13 is calculated by the image processing device 14. ;

[0047] The fixture assembly also includes an annular frame 21, which is fixedly connected to the top end of the output end of the second hydraulic cylinder 2 and is used to support the third hydraulic cylinder 22; a first clamping plate 23 is provided at the output end of the third hydraulic cylinder 22; specifically, when clamping the device to be tested 13, it is clamped by the first clamping plate 23 at the end of the second hydraulic cylinder 2; and when adjusting, the annular frame 21 is controlled to move up and down by the third hydraulic cylinder 22, thereby controlling the device to be tested 13 clamped by the first clamping plate 23 to move up and down, thereby facilitating the operation of adjusting the position of the device to be tested 13.

[0048] The positioning assembly also includes a support frame 3, a first hydraulic cylinder 31 is provided at the bottom end of the support frame 3, and the first hydraulic cylinder 31 is fixedly connected to the end of the positioning guide rail 1 close to the simulated light source 12; the output end of the first hydraulic cylinder 31 is connected to the bottom end of the support frame 3; a circular limit plate 37 is provided at the end of the positioning rod 35 away from the device to be tested 13; the diameter of the limit plate 37 is larger than the diameter of the tube mouth of the positioning tube 32; the sensing end of the pressure sensor 33 is provided with an arc plate 34, and the arc plate 34 faces the arc of the pressure sensor 33 The surface is attached to the annular circumference of the positioning rod 35; it is used to receive the positioning rod 35 in the positioning tube 32; the setting of the limit plate 37 can limit the position of the positioning rod 35 to prevent the positioning rod 35 from being pulled out of the positioning tube 32, and the support frame 3 is used to support the positioning tube 32. The first hydraulic cylinder 31 drives the positioning tube 32 to move back and forth through the support frame 3, and the moving distance is fixed. Initially, the center line of the positioning tube 32 coincides with the center line of the simulated light source 12 and the reflector 11, ensuring that the position of the device under test 13 is accurately adjusted.

[0049] like Figures 9 to 13As shown, a conveyor 4 is provided on one side of the annular frame 21 away from the positioning guide rail 1, a pair of fixed frames 41 are provided above the conveyor 4, a sliding guide rail 42 is provided between the pair of fixed frames 41, and the sliding guide rail 42 is slidably connected with a sliding member 43; a fourth hydraulic cylinder 431 is provided on the side of the fixed frame 41, and the output end of the fourth hydraulic cylinder 431 passes through the sliding guide rail 42 and is connected to the sliding member 43; a connecting column 44 is fixedly connected to the bottom end of the sliding member 43, a mounting plate 45 is fixedly connected to the bottom end of the connecting column 44, a pair of fifth hydraulic cylinders 46 are symmetrically provided on the top end of the mounting plate 45, a connecting frame 47 is provided at the end of the output end of the fifth hydraulic cylinder 46, and a second clamping plate 48 is fixedly connected to the bottom end of the connecting frame 47;

[0050] When testing the devices 13 to be tested in batches, the staff conveys the devices 13 to one side of the annular frame 21 through the conveyor 4, and then controls the sliding member 43 to slide on the sliding guide rail 42 through the fourth hydraulic cylinder 431. The sliding guide rail 42 drives the mounting plate 45 to move synchronously through the connecting column 44. The fifth hydraulic cylinder 46 on the mounting plate 45 drives the second clamping plate 48 to move synchronously through the connecting frame 47, and stops when the second clamping plate 48 moves to the clamping position. At this time, a pair of second clamping plates 48 are located on both sides of the devices 13 to be tested. Then The fifth hydraulic cylinder 46 drives the second clamping plate 48 to clamp the device under test 13 through the connecting frame 47, and then drives the device under test 13 into the annular frame 21. At this time, the third hydraulic cylinder 22 drives the first clamping plate 23 to be located on both sides of the device under test 13 inside the annular frame 21, and then clamps the device under test 13 through the first clamping plate 23. After the first clamping plate 23 clamps and fixes the device under test 13, the second clamping plate 48 is released, and then the second clamping plate 48 is controlled to leave the inside of the annular frame 21 through the sliding guide rail 42; after the detection is completed, the control The second clamping plate 48 extends into the inside of the annular frame 21 to clamp and fix the device to be tested 13, and then the clamping of the first clamping plate 23 on the device to be tested 13 is released, and then the second clamping plate 48 is controlled to move the device to be tested 13 away from the annular frame 21 and move it between the annular frame 21 and the conveyor 4 for unloading; after unloading, the device to be tested 13 to be tested is further conveyed to the clamping position of the second clamping plate 48 through the conveyor 4; then the second clamping plate 48 continues to clamp the device to be tested 13 on the conveyor 4, and the above operation is repeated; the whole This process can improve the automation of loading the device 13 under test; it should be pointed out that a groove 231 is provided on the clamping surface of the first clamping plate 23; when the second clamping plate 48 extends into the interior of the annular frame 21, it is at the same height as the groove 231. Therefore, when the device 13 under test is clamped by the first clamping plate 23, the second clamping plate 48 will be embedded in the groove 231, and then the second clamping plate 48 can release the clamping of the device 13 under test in the groove 231, and then the second clamping plate 48 can be pulled out to prevent interference between the first clamping plate 23 and the second clamping plate 48.

[0051] A pair of fixing rods 62 are provided on both sides of the image processing device 14, and a connecting piece 61 is provided at the top of the fixing rod 62. A receiving column 6 is fixedly connected between the pair of connecting pieces 61; the receiving column 6 is used to receive the wire so that the plug connector at the bottom end of the wire is located directly above the plug hole of the image processing device 14;

[0052] A sixth hydraulic cylinder 52 is fixedly connected to the side of the image processing device 14, a linkage rod 53 is arranged at the top of the output end of the sixth hydraulic cylinder 52, an annular ring 5 is fixedly connected to the end of the linkage rod 53 away from the sixth hydraulic cylinder 52, an annular airbag 51 is arranged inside the annular ring 5, and the annular airbag 51 surrounds the plug-in hole of the image processing device 14; the annular airbag 51 is externally connected to the second air pump;

[0053] When the device to be tested 13 moves from the conveyor 4 to the annular frame 21, the wire will be received by the receiving column 6, so that the plug connector at the bottom of the wire is located directly above the plug hole on the image processing device 14, and then the annular ring 5 is driven to move upward by the sixth hydraulic cylinder 52 and the linkage rod 53. Since the plug connector is located directly above the plug hole on the image processing device 14, the plug connector can pass through the annular ring 5 and the annular airbag 51 inside. When the annular ring 5 moves to the upper end position of the plug connector, it stops, and then the second air pump connected to the annular airbag 51 is started, and the second air pump inflates the annular airbag 51, so that the annular airbag 51 moves inward. The expansion binds and fixes the upper end of the plug connector, and then the annular ring 5 is controlled to move downward by the sixth hydraulic cylinder 52, and the plug connector is driven by the annular airbag 51 to move downward synchronously, and finally inserted into the plug hole above the image processing device 14. Similarly, when unloading the device 13 to be tested, the plug connector inserted into the plug hole can be pulled out and released by the annular airbag 51, thereby further improving the automation effect of the device 13 to be tested; it should be pointed out that the staff will control the height of the receiving column 6 according to the length of the wire to ensure that the plug connector is located directly above the plug hole of the image processing device 14 after the device 13 to be tested is clamped and fixed.

[0054] The connecting member 61 is specifically a connecting spring; the two ends of the connecting spring are respectively connected to the receiving column 6 and the fixing rod 62; when the plug connector is driven downward and inserted into the plug hole of the image processing device 14, when the wire is shorter, the wire will squeeze the receiving column 6, and the two ends of the connecting spring are respectively connected to the receiving column 6 and the fixing rod 62, so when the receiving column 6 is squeezed, the connecting spring can be deformed synchronously to provide a certain buffer for the wire, thereby protecting the wire; it should be pointed out that when the length of the wire is short to a certain extent, it is necessary to adjust the position of the image processing device 14 to ensure the use effect of the annular airbag 51.

[0055] The surface of the annular airbag 51 is evenly provided with a plurality of protrusions (not shown in the drawings of the specification); when the annular airbag 51 squeezes the plug connector, the protrusions on the surface can increase the friction between the annular airbag 51 and the plug connector, which is beneficial to improving the use effect of the annular airbag 51.

[0056] A docking plate 7 is symmetrically arranged on both sides of the image processing device 14, and a support plate 72 is arranged on one side of the docking plate 7. A seventh hydraulic cylinder 73 is installed on the side of the support plate 72, and a linkage plate 71 is arranged between the output end of the seventh hydraulic cylinder 73 and the docking plate 7; the docking plate 7 can extend into the upper position of the image processing device 14; after the detection is completed, the seventh hydraulic cylinder 73 drives the docking plate 7 to move to the lower position of the second clamping plate 48 through the linkage plate 71, and then the device to be tested 13 is clamped out of the annular frame 21 through the second clamping plate 48, and finally moved to the upper part of the docking plate 7, and then the clamping of the device to be tested 13 is released, and the device to be tested 13 falls onto the docking plate 7 below. It should be pointed out that after the image processing device 14 determines whether the device to be tested 13 is qualified, the staff controls the corresponding one in a pair of docking plates 7 to receive the device to be tested 13, distinguishes qualified and unqualified ones in the device to be tested 13, and assists in unloading through the docking plate 7, thereby reducing the work intensity of the staff.

[0057] A buffer pad is provided at the top of the receiving plate 7 to provide buffering when the device to be tested 13 falls, thereby protecting the device to be tested 13 .

[0058] The present application sets a clamp assembly and a positioning assembly, and the direction and distance of the telescopic movement of the first hydraulic cylinder 31 are fixed, and cooperates with the support frame 3 to achieve the coincidence of the center line of the positioning cylinder 32 with the center lines of the simulated light source 12 and the reflector 11 before detection, and then after determining the positions of the positioning cylinder 32, the positioning rod 35, the vacuum suction cup 36, the pressure sensor 33, and the arc plate 34, the optical lens of the device to be tested 13 is adsorbed by the vacuum suction cup 36. It should be noted that the positioning rod 35 is a rubber setting that can rotate and retract. If the center line of the optical lens is not aligned with the center line of the positioning cylinder 32 at this time, the positioning rod 35 will be offset and bent. At this time, different pressure sensors 33 are subjected to different pressures. Based on this, adjustments are made to ensure that the pressures of the pressure sensors 33 at different positions reach a predetermined pressure value to achieve the coincidence of the center line of the device to be tested 13 with the center line of the reflector 11; thereby optimizing the detection effect, facilitating the detection process, and improving the adjustment accuracy of the position of the device to be tested 13.

[0059] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An optical axis parallelism detection device, characterized in that: It comprises a positioning guide rail (1), one end of which is provided with a reflector (11); the other end of the positioning guide rail (1) is fixedly connected with a simulated light source (12); An image processing device (14) is arranged on one side of the positioning guide rail (1) close to one end of the simulated light source (12), and a clamp assembly is arranged between the image processing device (14) and the positioning guide rail (1); the clamp assembly is used to clamp the device to be tested (13), and a positioning assembly capable of reciprocating movement is arranged between the clamp assembly and the simulated light source (12), and the distance of the reciprocating movement is a fixed distance; The clamp assembly comprises a pair of third hydraulic cylinders (22), which can relatively retract to clamp the device to be tested (13) and push the device to be tested (13) to move horizontally; and a second hydraulic cylinder (2), which pushes the device to be tested (13) to move vertically when the second hydraulic cylinder (2) retracts. The positioning assembly comprises a positioning cylinder (32), the center line of the positioning cylinder (32) coincides with the center lines of the simulated light source (12) and the reflector (11); a plurality of pressure sensors (33) are arranged circumferentially on the inner wall of the positioning cylinder (32), and the positioning cylinder (32) further comprises a positioning rod (35) made of rubber material, one end of the positioning rod (35) is inserted into the positioning cylinder (32), and the outer wall is in contact with the sensing end of the pressure sensor (33); one end of the positioning rod (35) is provided with a vacuum suction cup (36); the vacuum suction cup (36) is adsorbed to the center of the optical lens of the device to be tested (13).

2. The optical axis parallelism detection device according to claim 1, characterized in that: The clamp assembly further comprises an annular frame (21), the annular frame (21) being fixedly connected to the top end of the output end of the second hydraulic cylinder (2) and used to support the third hydraulic cylinder (22); the output end of the third hydraulic cylinder (22) is provided with a first clamping plate (23).

3. The optical axis parallelism detection device according to claim 2, characterized in that: The positioning assembly further comprises a support frame (3), a first hydraulic cylinder (31) being arranged at the bottom end of the support frame (3), the first hydraulic cylinder (31) being fixedly connected to the end of the positioning rail (1) close to the simulated light source (12); an output end of the first hydraulic cylinder (31) being connected to the bottom end of the support frame (3); a circular limiting piece (37) being arranged at one end of the positioning rod (35) away from the device to be tested (13); a diameter of the limiting piece (37) being larger than a diameter of the opening of the positioning tube (32); and an arc plate (34) being arranged at the sensing end of the pressure sensor (33), the arc surface of the arc plate (34) facing the pressure sensor (33) being attached to the annular circumferential surface of the positioning rod (35).

4. The optical axis parallelism detection device according to claim 3, characterized in that: A conveyor (4) is arranged on the side of the annular frame (21) away from the positioning guide rail (1), a pair of fixed frames (41) are arranged above the conveyor (4), a sliding guide rail (42) is arranged between the pair of fixed frames (41), and the sliding guide rail (42) is slidably connected to a sliding member (43); a fourth hydraulic cylinder (431) is arranged on the side of the fixed frame (41), and the output end of the fourth hydraulic cylinder (431) passes through the sliding guide rail (42) and is connected to the sliding member (43); a connecting column (44) is fixedly connected to the bottom end of the sliding member (43), and a mounting plate (45) is fixedly connected to the bottom end of the connecting column (44), and a pair of fifth hydraulic cylinders (46) are symmetrically arranged on the top end of the mounting plate (45), and a connecting frame (47) is arranged at the end of the output end of the fifth hydraulic cylinder (46), and a second clamping plate (48) is fixedly connected to the bottom end of the connecting frame (47).

5. The optical axis parallelism detection device according to claim 4, characterized in that: The clamping surface of the first clamping plate (23) is provided with a groove (231).

6. The optical axis parallelism detection device according to claim 5, characterized in that: A pair of fixing rods (62) are provided on both sides of the image processing device (14); a connecting piece (61) is provided at the top of the fixing rod (62); and a receiving column (6) is fixedly connected between the pair of connecting pieces (61); A sixth hydraulic cylinder (52) is fixedly connected to the side of the image processing device (14); a connecting rod (53) is provided at the top of the output end of the sixth hydraulic cylinder (52); an annular ring (5) is fixedly connected to the end of the connecting rod (53) away from the sixth hydraulic cylinder (52); an annular airbag (51) is provided on the inner ring of the annular ring (5); the annular airbag (51) surrounds the plug-in hole of the image processing device (14); and a second air pump is externally connected to the annular airbag (51).

7. The optical axis parallelism detection device according to claim 6, characterized in that: The connecting member (61) is specifically a connecting spring; both ends of the connecting spring are respectively connected to the receiving column (6) and the fixing rod (62).

8. The optical axis parallelism detection device according to claim 7, characterized in that: The surface of the annular airbag (51) is evenly provided with a plurality of protrusions.

9. The optical axis parallelism detection device according to claim 6, characterized in that: A pair of receiving plates (7) are symmetrically arranged on both sides of the image processing device (14); a support plate (72) is arranged on one side of the receiving plate (7); a seventh hydraulic cylinder (73) is installed on the side of the support plate (72); and a linkage plate (71) is arranged between the output end of the seventh hydraulic cylinder (73) and the receiving plate (7); the receiving plate (7) can extend to a position above the image processing device (14).

10. The optical axis parallelism detection device according to claim 9, characterized in that: A buffer pad is provided at the top end of the receiving plate (7).

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