A multi-head optical lens pressing ring locking device and its use method

Abstract

The present invention discloses a multi-head optical lens pressure ring locking device and a method for using the same. The locking device includes a power output part and several jig rotating platforms matched with the driving end of the power output part. The rotating end of each jig rotating platform is fixed with a pressure ring jig for clamping the pressure ring to lock the optical lens pressure ring. The power output part drives the rotating end of the jig rotating platform to rotate, driving the pressure ring jig and the clamped pressure ring to rotate synchronously to lock the pressure ring. Each jig rotating platform is connected to the driving end of the power output part by a rotating shaft assembly, and the rotating shaft assembly has the freedom of extension and contraction along the axial direction. During the pressure ring locking process of the present invention, there is no need to lift the locking device as a whole, which reduces the operating load, thereby reducing the operating difficulty and ensuring accurate control of the locking axial movement stroke.

Description

Technical Field

[0001] The present invention relates to the technical field of optical lens assembly, and in particular to a multi-head optical lens pressure ring locking device and a use method thereof. Background Art

[0002] Optical lens products are widely used in vehicle-mounted autonomous driving, drones, and aerospace, such as visible light optical lenses, infrared optical lenses, laser lenses, etc.; during the optical lens production process, the pressure ring needs to be rotated to the optical lens knob to press the O-ring to achieve sealing of the optical lens.

[0003] The traditional pressing ring locking equipment adopts single-head locking. To meet the high production capacity requirements, additional machines need to be added. The equipment occupies a large area and is costly. In addition, during the locking process, the pressing ring locking equipment will move up and down at the same time. The locking mechanism is heavily loaded, the locking clamping force control accuracy is poor, and there is no locking height inspection function, which makes it impossible to accurately install the pressing ring. At the same time, the locking torque of the pressing ring relies on the torque sensor for detection and feedback. There is a lag in the signal transmission, which makes it impossible to accurately control the locking process. Summary of the Invention

[0004] Technical purpose: In response to the shortcomings of the above-mentioned existing pressure ring locking equipment, the present invention discloses a multi-head optical lens pressure ring locking device and its use method, which can realize multiple pressure ring locking installations, reduce the load during the locking process, and achieve precise control of the locking torque.

[0005] Technical solution: To achieve the above technical objectives, the present invention adopts the following technical solution:

[0006] A multi-head optical lens pressure ring locking device includes a power output part and several jig rotating platforms matched with the driving end of the power output part. The rotating end of each jig rotating platform is fixed with a pressure ring jig for clamping the pressure ring for optical lens pressure ring locking. The power output part drives the rotating end of the jig rotating platform to rotate, driving the pressure ring jig and the clamped pressure ring to rotate synchronously to lock the pressure ring; each jig rotating platform is connected to the driving end of the power output part by a rotating shaft assembly, and the rotating shaft assembly has the freedom of axial extension and contraction. During the pressure ring locking process, each jig rotating platform independently moves axially relative to the power output part.

[0007] Preferably, the rotating shaft assembly of the present invention includes a driven shaft and a spline shaft that cooperates with the driven shaft through a spline nut. The driven shaft and the output shaft of the power output part are transmitted through a gear transmission structure, and the driven shaft and the spline nut are key-connected; the jig rotating platform is provided with a hollow rotating shaft for cooperating with the spline shaft to transmit torque, and the hollow rotating shaft is fixed in the jig rotating platform through a bearing. The hollow rotating shaft and the spline shaft are axially slidably matched, and the end of the hollow rotating shaft close to the side where the pressing ring jig is located is connected to the pressing ring jig.

[0008] Preferably, the jig rotating platform of the present invention is driven to move axially by a sliding mechanism arranged parallel to the axis of the spline shaft. The sliding mechanism includes a fixed plate and a cylinder and a slide rail arranged on the fixed plate. The jig rotating platform slides with the slide rail through a slider. The driving end of the cylinder is connected to the slider. The slider is pushed by the action of the cylinder to drive the jig rotating platform and the hollow rotating shaft to move along the slide rail.

[0009] Preferably, when the optical lens pressure ring is locked, the present invention clamps the pressure ring through the pressure ring fixture and moves the pressure ring locking device as a whole to the optical lens, so that the pressure ring corresponds to the position of the optical lens, and the power output part drives the pressure ring fixture to rotate to lock the pressure ring, and the cylinder performs axial feeding synchronously according to the rotation of the power output part, driving the fixture rotating platform and the pressure ring fixture to move synchronously with the pressure ring rotation and locking process.

[0010] Preferably, the jig rotating platform of the present invention is connected to the pressing ring jig through a floating mechanism, and the floating mechanism provides axial elastic support force for the pressing ring jig, and the floating mechanism includes a floating mounting seat, a spring and a baffle, and the baffle is rotatably mounted on the jig rotating platform, and the floating mounting seat is provided with a mounting hole that cooperates with the spring, one end of the spring is fixed in the mounting hole, and the other end abuts on the baffle; the hollow rotating shaft is passed through the floating mounting seat and is key-connected to the floating mounting seat; a limiting structure is provided at the end of the hollow rotating shaft on the side of the floating mounting seat away from the spring, and the limiting structure is fixedly connected to the hollow rotating shaft, which limits the floating mounting seat to the area between the limiting structure and the baffle, and the pressing ring jig is fixed to the end of the floating mounting seat.

[0011] Preferably, the power output part of the present invention includes a servo motor and a power helical gear. Torque is transmitted between the rotating end of each jig rotating platform and the power helical gear through a gear transmission structure composed of helical gears. The servo motor drives the rotating end of the jig rotating platform to rotate synchronously through the gear transmission structure.

[0012] Preferably, the pressing ring jig of the present invention includes a jig main body connected to the jig rotating platform, and a clamping cylinder for clamping the pressing ring is provided in the jig main body. The clamping cylinder clamps the pressing ring by cooperating with the inner wall of the pressing ring through a clamping piece fixed on the clamping jaw. A quick-change locking piece that cooperates with the positioning groove on the pressing ring is detachably provided at one end of the jig main body close to the pressing ring.

[0013] Preferably, the quick-change lock plate of the present invention includes a lock plate body and a lock head arranged below the lock plate body for cooperating with the positioning groove. The jig body is correspondingly provided with a lock plate mounting groove for quick-change lock plate disassembly and assembly. The lock plate mounting groove and the clip are staggered in the circumferential direction of the jig body. The upper cross-section of the lock plate mounting groove adopts an inverted trapezoidal structure. The shape of the lock plate body matches the shape of the lock plate mounting groove. The lock head protrudes from the lower end of the jig body and cooperates with the positioning groove of the pressure ring to perform positioning and torque transmission for locking the pressure ring.

[0014] The present invention discloses a method for using the above-mentioned multi-head optical lens pressure ring locking device, wherein the pressure ring is clamped by a pressure ring fixture and moved as a whole with the pressure ring locking device to a position corresponding to the optical lens, the power output part provides a rotational torque, and the rotational torque is transmitted through the corresponding rotating shaft assembly, and the rotating end of the jig rotating platform is driven by the rotating shaft assembly to drive the pressure ring fixture to rotate, and the pressure ring fixture drives the pressure ring to rotate to lock and install the pressure ring of the optical lens. During the pressure ring locking process, the sliding mechanism connected to the jig rotating platform pushes the jig rotating platform and the pressure ring fixture to feed synchronously according to the axial displacement generated by the pressure ring locking rotation according to the locking process, so as to keep the axial relative position of the pressure ring fixture and the pressure ring unchanged.

[0015] Preferably, the power output part of the present invention uses a servo motor to provide the original rotational torque. Before the optical lens pressure ring is formally locked and installed, the torque provided by the servo motor is calibrated by a high-precision torque sensor to establish a corresponding relationship between the current and torque of the servo motor. When the pressure ring is locked, the output torque is directly controlled in real time by the running current of the servo motor.

[0016] Beneficial effects: The multi-head optical lens pressing ring locking device and the use method disclosed in the present invention have the following beneficial effects:

[0017] 1. The present invention sets up multiple fixture rotating platforms and drives them through the same power output part, which can realize the pressing ring locking operation of various optical lenses, meet the production capacity requirements while reducing equipment costs.

[0018] 2. The shaft assembly of the present invention is designed with the freedom of extension and contraction in the axial direction, which eliminates the need for the locking device to be raised or lowered as a whole, thereby reducing the operating load and thus lowering the operating difficulty, and ensuring accurate control of the locking axial movement stroke.

[0019] 3. The present invention utilizes a spline shaft and a hollow rotating shaft to transmit torque and perform axial relative movement, thereby ensuring stable transmission of torque during movement and improving locking efficiency.

[0020] 4. The present invention sets a floating mechanism between the fixture rotating platform and the pressing ring fixture. The floating mechanism can provide stable axial pressure for the pressing ring locking and avoid the problem of product and equipment damage caused by rigid contact.

[0021] 5. The shaft assembly of the present invention uses a hollow rotating shaft for torque transmission. At the same time, the hollow rotating shaft can serve as a passage for the air source required by the clamping cylinder. There is no need to set up an air pipe outside the equipment separately, which solves the problem of air pipe tangling caused by the traditional air pipe supply method, simplifies the overall structure of the device, and facilitates assembly.

[0022] 6. The pressing ring fixture of the present invention clamps and fixes the pressing ring through the cooperation of the clamping claw cylinder and the inner ring of the pressing ring, and transmits torque through the quick-change locking plate and the positioning groove on the pressing ring. Compared with the method of using the clamping force of the cylinder to rotate the pressing ring to lock it, the present invention can increase the upper limit of the rotational torque and avoid slipping, thereby achieving that the pressing rings of each optical mirror can be smoothly locked and fixed when driven by the same power output part.

[0023] 7. The power output part of the present invention adopts a servo motor to provide power. Before the pressing ring is locked, the torque is calibrated by a high-precision torque sensor to establish a corresponding relationship between the current and the torque of the servo motor. During the continuous pressing ring locking process, the torque is directly monitored and controlled in real time through the current of the servo motor. Compared with the method of using sensors for detection and feedback, the present invention can effectively eliminate the influence of signal lag on the locking process, and ensure the precise control of the locking installation of the pressing ring of the optical lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for describing the embodiments or the prior art.

[0025] Figure 1 This is an overall structural diagram of the locking device of the present invention;

[0026] Figure 2 This is a structural diagram of the power output part of the present invention;

[0027] Figure 3 This is an exploded view of the power output part and the rotating shaft assembly structure of the present invention;

[0028] Figure 4 This is an exploded view of the rotating platform structure of the fixture of the present invention;

[0029] Figure 5 This is a schematic diagram of the clamping state of the pressing ring of the present invention;

[0030] Figure 6 This is an exploded view of the pressing ring fixture structure of the present invention;

[0031] Among them, 1-power output part, 2-fixture rotating platform, 3-pressing ring, 4-pressing ring fixture, 5-output shaft, 6-driven shaft, 7-spline nut, 8-spline shaft, 9-hollow rotating shaft, 10-fixed plate, 11-cylinder, 12-slide rail, 13-slider, 14-floating mechanism, 15-floating mounting seat, 16-spring, 17-blocking plate, 18-servo motor, 19-power helical gear, 20-fixture body, 2 1-grip cylinder, 22-clamp, 23-positioning slot, 24-quick-change lock plate, 25-lock plate body, 26-lock head, 27-lock plate mounting slot, 28-transmission bevel gear, 29-intermediate bevel gear, 30-hydraulic buffer, 31-mounting block, 32-floating joint, 33-rotating air joint, 34-trachea joint, 35-first support plate, 36-second support plate, 37-bearing, 38-limit block, 39-latch. DETAILED DESCRIPTION

[0032] Reference will now be made in detail to the embodiments of the present disclosure, one or more examples of which are set forth herein below. Each embodiment and example is provided by way of explanation of the apparatus, composition, and materials of the present disclosure, and is not intended to be limiting. On the contrary, the following description provides a convenient illustration of exemplary embodiments for implementing the present disclosure. In fact, it will be apparent to those skilled in the art that various modifications and variations can be made within the teachings of the present disclosure without departing from the scope or spirit of the present disclosure.

[0033] like Figures 1-6 As shown, the present invention discloses a multi-head optical lens pressure ring locking device, including a power output part 1, and several jig rotating platforms 2 matched with the driving end of the power output part 1. The rotating end of each jig rotating platform 2 is fixed with a pressure ring jig 4 for clamping the pressure ring 3 to lock the optical lens pressure ring. The power output part 1 drives the rotating end of the jig rotating platform 2 to rotate, driving the pressure ring jig 4 and the clamped pressure ring 3 to rotate synchronously to lock the pressure ring; each jig rotating platform 2 is connected to the driving end of the power output part 1 by a rotating shaft assembly, and the rotating shaft assembly has the freedom of extension and contraction along the axial direction. During the locking process of the pressure ring 3, each jig rotating platform 2 independently moves axially relative to the power output part 1.

[0034] like Figure 2 and Figure 3As shown, the power output part 1 of the present invention includes a servo motor 18 and a power bevel gear 19. The torque is transmitted between the rotating end of each fixture rotating platform 2 and the power bevel gear 19 through a gear transmission structure composed of bevel gears. The servo motor 18 drives the rotating end of the fixture rotating platform 2 to rotate synchronously through the gear transmission structure. In an embodiment of the present invention, the number of the fixture rotating platforms 2 is three, which are arranged side by side on the same horizontal line. A transmission bevel gear 28 is provided at the end of the rotating shaft assembly of each fixture rotating platform 2. In order to realize the same-direction synchronous drive of the three transmission bevel gears 28, the three transmission bevel gears 28 of the present invention are The same specifications as the power bevel gear 19 are adopted, and an intermediate bevel gear 29 is set between the power bevel gear 19 and the transmission bevel gear 28 to engage with each other. When the power bevel gear 19 rotates, it drives the two intermediate bevel gears 29 to rotate, and the two intermediate bevel gears 29 drive the transmission bevel gear 28 to rotate, thereby realizing the use of the same power output part 1 to drive the rotating ends of multiple fixture rotating platforms 2. According to the arrangement position of the fixture rotating platform 2, a transmission structure can also be set between the corresponding transmission bevel gear 28 and the power bevel gear 19 for power transmission, and is not limited to the arrangement method of the fixture rotating platform 2 in the embodiment of the present invention.

[0035] like Figure 3 As shown, the rotating shaft assembly of the present invention includes a driven shaft 6 and a spline shaft 8 that passes through the driven shaft 6 and cooperates with the driven shaft 6 through a spline nut 7. The driven shaft 6 and the output shaft 5 of the power output part 1 are transmitted through a gear transmission structure. The power output part 1 is installed on the first support plate 35. The upper part of the spline shaft 8 passes through the first support plate 35. The upper end of the rotating shaft of the intermediate helical gear 29 and the spline shaft 8 are rotatably matched with the first support plate 35 through bearings. The servo motor 18 and the positions of each shaft in the height direction are kept fixed by the first support plate 35. The transmission helical gear 28 is fixedly connected to the corresponding driven shaft 6 to drive the driven shaft 6 to rotate. The driven shaft 6 and the spline nut 7 are key-connected. A second support plate 36 is provided in the axial direction, and the lower ends of the rotating shafts of the driven shaft 6 and the intermediate bevel gear 29 are also matched with the second support plate 36 through bearings to support each shaft; the jig rotating platform 2 is provided with a hollow rotating shaft 9 for cooperating with the spline shaft 8 to transmit torque, and the hollow rotating shaft 9 is fixed in the jig rotating platform 2 through bearings, and the hollow rotating shaft 9 and the spline shaft 8 slide in the axial direction and are clamped in the radial direction by screws to transmit torque, and the inner wall of the hollow rotating shaft 9 can also be designed to a shape that cooperates with the surface of the spline shaft 8 to achieve relative sliding between the two without affecting the transmission of torque; the end of the hollow rotating shaft 9 close to the side where the pressing ring jig 4 is located is connected to the pressing ring jig 4; Figure 3In the exploded view, for the bearings 37 at various positions, since the rotational cooperation between the shaft and the corresponding components is achieved through bearings, which is a mature prior art in this field, and the present invention has clearly stated that the components are matched through bearings, the assembly of the bearings in the corresponding support plates is a matter for those skilled in the art to freely select and design based on the contents of the invention, and the different bearing installation methods and structures do not affect the transmission of torque in the present invention.

[0036] The jig rotating platform 2 of the present invention is driven to move axially by a sliding mechanism arranged parallel to the axis of the spline shaft 8. When the optical lens pressure ring is locked, the pressure ring is clamped by the pressure ring jig 4 and the pressure ring locking device is moved as a whole to the optical lens, so that the pressure ring 3 corresponds to the position of the optical lens. The power output part 1 drives the pressure ring jig 4 to rotate to lock the pressure ring. The sliding mechanism performs axial feeding synchronously according to the rotation of the power output part 1, driving the jig rotating platform 2 and the pressure ring jig 4 to move synchronously with the pressure ring rotation and locking process.

[0037] like Figure 4 As shown, in a specific embodiment, the sliding mechanism of the present invention includes a fixed plate 10 and a cylinder 11 and a slide rail 12 arranged on the fixed plate 10. The jig rotating platform 2 slides with the slide rail 12 through a slider 13. The driving end of the cylinder 11 is connected to the slider 13 through a floating joint 32. The slider 13 is pushed by the action of the cylinder 11 to drive the jig rotating platform 2 and the hollow rotating shaft 9 to move along the slide rail. A hydraulic buffer 30 is provided at the sliding end of the slider 13. The hydraulic buffer 30 is fixed to the fixed plate 10 through a mounting block 31 to buffer and limit the sliding of the slider 13.

[0038] In order to avoid the damage of the optical lens product and the locking device caused by rigid contact when the sliding mechanism drives the jig rotating platform 2 and the pressing ring jig 4 to move axially during the pressing ring process, the jig rotating platform 2 and the pressing ring jig 4 of the present invention are connected by a floating mechanism 14, and the floating mechanism 14 provides an axial elastic support force for the pressing ring jig 4. The floating mechanism includes a floating mounting seat 15, a spring 16 and a baffle 17. The baffle 17 is rotatably mounted on the jig rotating platform 2 and can rotate freely relative to the jig rotating platform 2. The floating mounting seat 15 is provided with a mounting hole that cooperates with the spring 16. One end of the spring 16 is fixed in the mounting hole, and the other end abuts against the baffle 17; hollow The rotating shaft 9 is passed through the floating mounting seat 15 and is key-connected to the floating mounting seat 15. The length of the keyway opened in the floating mounting seat 15 is greater than the length of the corresponding key, so that it can float axially along the hollow rotating shaft 9 when subjected to force; a limiting structure is provided at the end of the hollow rotating shaft 9 on the side of the floating mounting seat 15 away from the spring 16, and the limiting structure is fixedly connected to the hollow rotating shaft 9. The limiting structure includes a limiting block 38 and a pin 39. The limiting block 38 is sleeved and fixed on the hollow rotating shaft 9, and is inserted through the pin 39 in a direction perpendicular to the axis of the hollow rotating shaft 9, so that the limiting block 38 and the hollow rotating shaft 9 remain fixed; the floating mounting seat 15 is restricted to the area between the limiting structure and the baffle 17.

[0039] The springs 16 are preferably provided in plurality and are evenly arranged along the circumferential direction of the floating mounting seat 15. During axial movement, the springs 16 are used to maintain a stable axial thrust. When the force exceeds the limit, the presence of the springs 16 enables the floating mounting seat 15 to expand and contract along the axial direction of the hollow rotating shaft 9, thereby avoiding rigid collision and protecting the equipment and products. At the same time, a locking height detection sensor can be added to the jig rotating platform 2 or the pressing ring jig 4 to detect the overall moving distance of the pressing ring during the locking process, thereby preventing the undesirable situation of insufficient locking torque and insufficient height due to misalignment of the thread of the optical lens and deviation of the pressing ring, thereby further ensuring the quality of the pressing ring locking installation.

[0040] like Figure 5 and Figure 6As shown, the pressing ring jig 4 of the present invention includes a jig body 20 connected to the jig rotating platform 2, and a clamping claw cylinder 21 for clamping the pressing ring 3 is provided in the jig body 20. The clamping claw cylinder 21 cooperates with the inner wall of the pressing ring 3 through a clamping piece 22 fixed on the clamping claw to clamp the pressing ring 3. A quick-change locking piece 24 that cooperates with the positioning groove 23 on the pressing ring 3 is detachably provided at one end of the jig body 20 close to the pressing ring 3; the quick-change locking piece 24 of the present invention includes a locking piece body 25 and a quick-change locking piece 24 provided on the locking piece body. Below the body 25 is a lock head 26 for cooperating with the positioning groove 23. The fixture body 20 is correspondingly provided with a lock piece mounting groove 27 for quick-change lock piece 24 disassembly and assembly. The lock piece mounting groove 27 and the clip 22 are staggered in the circumferential direction of the fixture body 20. The upper cross-section of the lock piece mounting groove 27 adopts an inverted trapezoidal structure. The shape of the lock piece body 25 matches the shape of the lock piece mounting groove 27. The lock head 26 protrudes from the lower end of the fixture body 20 and cooperates with the positioning groove 23 of the pressure ring 3 to transmit torque for positioning and locking.

[0041] The air source of the clamping cylinder 21 is supplied through the rotating shaft assembly. The spline shaft 8 is set to be hollow, and a rotating air joint 33 is connected at the end. The compressed air is transmitted to the fixture body 20 through the spline shaft 8 and the hollow rotating shaft 9. The corresponding air pipe joint on the fixture body 20 is connected to the clamping cylinder 21 for air supply, thereby avoiding the air pipe entanglement problem caused by using an external air pipe; a sealing ring is set at the junction of each shaft for sealing to ensure the smooth transmission of compressed air.

[0042] The setting of the quick-change locking plate 24 of the present invention enables the locking device to flexibly replace the quick-change locking plate 24 according to the specifications of the locking pressure ring. The quick-change locking plate 24 is a consumable material and is disassembled during structural design, which greatly improves the convenience of replacement and reduces the replacement cost. At the same time, the design of the locking head 26 ensures the stable transmission of torque, improves the stability of the locking process, and contributes to the realization of a multi-head locking device.

[0043] The present invention also discloses a method for using the above-mentioned multi-head optical lens pressure ring locking device, wherein the pressure ring is clamped by a pressure ring fixture and moved as a whole with the pressure ring locking device to a position corresponding to the optical lens, and the power output part provides a rotational torque, which is transmitted through the corresponding rotating shaft assembly, and the rotating end of the jig rotating platform is driven by the rotating shaft assembly to drive the pressure ring fixture to rotate, and the pressure ring fixture drives the pressure ring to rotate to lock and install the pressure ring of the optical lens. During the pressure ring locking process, the sliding mechanism connected to the jig rotating platform pushes the jig rotating platform and the pressure ring fixture to feed synchronously according to the axial displacement generated by the pressure ring locking rotation according to the locking process, so as to keep the axial relative position of the pressure ring fixture and the pressure ring unchanged; the present invention can realize the locking and installation of multiple pressure rings by driving the pressure ring fixture to rotate through the power output part.

[0044] The power output part of the present invention uses a servo motor to provide the original rotational torque. Before the optical lens pressure ring is officially locked and installed, the torque provided by the servo motor is calibrated through a high-precision torque sensor to establish a corresponding relationship between the current and torque of the servo motor. When the pressure ring is locked, the output torque is directly controlled in real time through the operating current of the servo motor, thereby eliminating the influence of signal lag on the locking process.

[0045] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A multi-head optical lens pressing ring locking device, characterized in that: The invention comprises a power output part (1), a plurality of jig rotating platforms (2) matched with the driving end of the power output part (1), a pressing ring jig (4) for clamping a pressing ring (3) for locking the optical lens pressing ring is fixed to the rotating end of each jig rotating platform (2), the power output part (1) drives the rotating end of the jig rotating platform (2) to rotate, drives the pressing ring jig (4) and the clamped pressing ring (3) to rotate synchronously, and locks the pressing ring (3); each jig rotating platform (2) is connected to the driving end of the power output part (1) through a rotating shaft assembly, and the rotating shaft assembly has the freedom of axial expansion and contraction, and during the process of locking the pressing ring (3), each jig rotating platform (2) independently moves axially relative to the power output part (1); The rotating shaft assembly includes a driven shaft (6) and a spline shaft (8) matched with the driven shaft (6) via a spline nut (7); the driven shaft (6) and the output shaft (5) of the power output part (1) are transmitted via a gear transmission structure, and the driven shaft (6) and the spline nut (7) are key-connected; the jig rotating platform (2) is provided with a hollow rotating shaft (9) for cooperating with the spline shaft (8) to transmit torque, the hollow rotating shaft (9) is fixed in the jig rotating platform (2) via a bearing, the hollow rotating shaft (9) and the spline shaft (8) are axially slidably matched, and the end of the hollow rotating shaft (9) close to the side where the pressing ring jig (4) is located is connected to the pressing ring jig (4); The jig rotating platform (2) is driven to move axially by a sliding mechanism arranged parallel to the axis of the spline shaft (8), the sliding mechanism comprising a fixed plate (10) and a cylinder (11) and a slide rail (12) arranged on the fixed plate (10), the jig rotating platform (2) is slidably matched with the slide rail (12) via a slider (13), the driving end of the cylinder (11) is connected to the slider (13), and the cylinder (11) moves to push the slider (13) to drive the jig rotating platform (2) and the hollow rotating shaft (9) to move along the slide rail (12); When the optical lens pressing ring is locked, the pressing ring (3) is clamped by the pressing ring fixture (4) and the pressing ring locking device is moved as a whole to the optical lens, so that the pressing ring (3) corresponds to the position of the optical lens, the power output part (1) drives the pressing ring fixture (4) to rotate to lock the pressing ring, and the cylinder (11) is synchronously fed axially according to the rotation of the power output part (1), driving the fixture rotating platform (2) and the pressing ring fixture (4) to move synchronously with the pressing ring rotation and locking process; The jig rotating platform (2) and the pressing ring jig (4) are connected via a floating mechanism (14), and the floating mechanism (14) provides an axial elastic support force for the pressing ring jig (4). The floating mechanism includes a floating mounting seat (15), a spring (16) and a baffle (17). The baffle (17) is rotatably mounted on the jig rotating platform (2). The floating mounting seat (15) is provided with a mounting hole that matches the spring (16). One end of the spring (16) is fixed in the mounting hole. , the other end abuts against the baffle (17); the hollow rotating shaft (9) is passed through the floating mounting seat (15) and is key-connected to the floating mounting seat (15); a limiting structure is provided at the end of the hollow rotating shaft (9) on the side of the floating mounting seat (15) away from the spring (16), and the limiting structure is fixedly connected to the hollow rotating shaft (9) to limit the floating mounting seat (15) to the area between the limiting structure and the baffle (17); the pressing ring fixture (4) is fixed to the end of the floating mounting seat (15).

2. The multi-head optical lens pressing ring locking device according to claim 1, characterized in that: The power output part (1) includes a servo motor (18) and a power helical gear (19). Torque is transmitted between the rotating end of each fixture rotating platform (2) and the power helical gear (19) via a gear transmission structure composed of helical gears. The servo motor (18) drives the rotating end of the fixture rotating platform (2) to rotate synchronously through the gear transmission structure.

3. The multi-head optical lens pressing ring locking device according to claim 1, characterized in that: The pressing ring jig (4) includes a jig body (20) connected to the rotating end of the jig rotating platform (2), a clamping claw cylinder (21) for clamping the pressing ring (3) is provided in the jig body (20), and the clamping claw cylinder (21) clamps the pressing ring (3) by cooperating with the inner wall of the pressing ring (3) through a clamping piece (22) fixed on the clamping claw, and a quick-change locking piece (24) cooperating with the positioning groove (23) on the pressing ring (3) is detachably provided at one end of the jig body (20) close to the pressing ring (3).

4. The multi-head optical lens pressing ring locking device according to claim 3, characterized in that: The quick-change lock plate (24) comprises a lock plate body (25) and a lock head (26) arranged below the lock plate body (25) for cooperating with the positioning groove (23); the fixture body (20) is correspondingly provided with a lock plate mounting groove (27) for disassembling and assembling the quick-change lock plate (24); the lock plate mounting groove (27) and the clip (22) are staggered in the circumferential direction of the fixture body (20); the upper cross-section of the lock plate mounting groove (27) adopts an inverted trapezoidal structure; the shape of the lock plate body (25) matches the shape of the lock plate mounting groove (27); the lock head (26) protrudes from the lower end of the fixture body (20) and cooperates with the positioning groove (23) of the pressure ring (3) to perform positioning and torque transmission for locking the pressure ring.

5. A method for using a multi-head optical lens pressing ring locking device according to any one of claims 1 to 4, characterized in that: The pressing ring is clamped by the pressing ring jig and moved as a whole with the pressing ring locking device to the position corresponding to the optical lens. The power output part provides rotational torque, which is transmitted through the corresponding rotating shaft assembly. The rotating end of the jig rotating platform is driven by the rotating shaft assembly to drive the pressing ring jig to rotate. The pressing ring jig drives the pressing ring to rotate to lock and install the pressing ring of the optical lens. During the pressing ring locking process, the sliding mechanism connected to the jig rotating platform pushes the jig rotating platform and the pressing ring jig to feed synchronously according to the axial displacement generated by the pressing ring locking rotation according to the locking process, so as to keep the axial relative position of the pressing ring jig and the pressing ring unchanged.

6. The method for using the multi-head optical lens pressing ring locking device according to claim 5, characterized in that: The power output part uses a servo motor to provide the original rotational torque. Before the optical lens pressure ring is officially locked and installed, the torque provided by the servo motor is calibrated through a high-precision torque sensor to establish a corresponding relationship between the operating current and torque of the servo motor. When the pressure ring is locked, the output torque is directly controlled in real time through the operating current of the servo motor.

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