Lens loading machine

Abstract

The application discloses a lens feeding machine, characterized in that the lens feeding machine comprises a rack, a feeding mechanism, a first transfer mechanism, a second transfer mechanism and a taking and placing mechanism arranged on the rack. In the application, the first transfer mechanism and the second transfer mechanism are arranged, two groups of taking fixtures and two groups of placing fixtures are arranged on the first transfer mechanism and the second transfer mechanism respectively, the two groups of taking fixtures and the two groups of placing fixtures are arranged in a high-low staggered mode or a horizontal staggered mode, and the taking and placing mechanism is used for transferring a workpiece on a first carrier plate on the first transfer mechanism to a second carrier plate on the second transfer mechanism. The application can ensure that the workpiece is transferred and the feeding (the first carrier plate) of the first transfer mechanism and the discharging (the second carrier plate) of the second transfer mechanism are simultaneously performed, and the production efficiency is greatly improved.

Description

Technical Field

[0001] This invention relates to a lens loading machine. Background Technology

[0002] In the processing of mobile phone camera lens barrels and lenses, they need to be moved from one carrier plate to another. The entire transfer process is carried out on a jig table. Before the transfer process, the carrier plate needs to be removed and the movable clips on the carrier plate need to be disassembled. Then, the plate body and cover plate of the carrier plate need to be separated. Only then can the lens barrel or lens and other workpieces on the plate be transferred. After the transfer is completed, the plate body and cover plate are recycled. The above process in the prior art has a low degree of automation. Summary of the Invention

[0003] The purpose of this invention is to propose a lens loading machine with a higher degree of automation.

[0004] To address the aforementioned problems, this invention provides a lens loading machine for transferring lenses, which are workpieces, from a first carrier plate to a second carrier plate. The first carrier plate includes a first plate body for placing the workpiece and a first cover plate movably covering the first plate body. The first plate body and the first cover plate are movably connected by a snap-fit ​​mechanism. Both the first plate body and the second carrier plate are provided with cavities for accommodating the workpiece. The machine is characterized by including a frame and a loading mechanism, a first transfer mechanism, a second transfer mechanism, and a pick-and-place mechanism disposed on the frame, wherein:

[0005] The feeding mechanism is used to remove the first carrier plate from the accumulating area and transfer it to the first transfer mechanism;

[0006] The first transfer mechanism has at least two picking fixture plates, which are used to place the first carrier plate. Each picking fixture plate can move along the length of the first transfer mechanism. The two picking fixture plates are configured to have a height difference or a horizontal position difference so that the two picking fixture plates do not interfere with each other when they move relative to each other. The first transfer mechanism is provided with a first station and a second station where the picking fixture plates stop. When one of the picking fixture plates is located at the first station, the loading mechanism moves the first carrier plate to the picking fixture plate.

[0007] The second transfer mechanism can place at least two said material loading fixture plates, said material loading fixture plates are used for the placement of said second carrier plate, said material loading fixture plates can move along the length direction of said second transfer mechanism, two said material loading fixture plates are configured to have a height difference or a horizontal position difference, so that the relative motion of two said material loading fixture plates does not interfere with each other, said second transfer mechanism is provided with third and fourth stations where said material loading fixture plates stop, when said material loading fixture plates are located in the fourth station, the second carrier plate on said material loading fixture plates is taken out.

[0008] Said material loading and unloading mechanism is used to grab the workpiece on the material loading fixture plate in the second station from said first transfer mechanism and place it on the second carrier plate of the material loading fixture plate in the third station on said second transfer mechanism.

[0009] As a further improvement of the present application, said material loading mechanism comprises a plurality of fixture tables and a first mechanical hand, wherein said first mechanical hand is used to clamp said fixture tables and said first carrier plate on said material loading fixture plate in said first station and move between each said fixture table and said material loading fixture plate, said fixture tables comprise:

[0010] A first fixture table is used to place said first carrier plate loaded with workpieces, a first rack is arranged below said first fixture table, said first rack is loaded with a plurality of said first carrier plates from top to bottom, and said first carrier plates are sequentially sent to said first fixture table by lifting motion through a first lifting mechanism;

[0011] A second fixture table is used to place said first carrier plate without load, a second rack is arranged below said second fixture table, said second rack is loaded with a plurality of said first carrier plates from top to bottom, and said first carrier plates are sequentially moved out of said second fixture table from top to bottom by lifting motion through a second lifting mechanism;

[0012] A third fixture table is used to place said first carrier plate, a pushing mechanism is arranged on the side of said third fixture table, said pushing mechanism pushes away the movable buckle connecting said plate body and said first cover plate by horizontal linear motion;

[0013] A fifth fixture table is used to place said first cover plate.

[0014] As a further improvement of the present application, said pushing mechanism comprises:

[0015] A pushing arm is fixed below said third fixture table, when said third fixture table is loaded with said first carrier plate, said pushing arm can extend to the side of said first carrier plate, the horizontal distance from said pushing arm to the side of said first carrier plate is less than the horizontal distance from the outermost shell of said movable buckle to the side of said first carrier plate;

[0016] a second horizontal driving mechanism for driving the horizontal movement of the toggle arm, the second horizontal driving mechanism driving the toggle arm to contact the movable buckle and push the movable buckle away from the first carrier plate.

[0017] As a further improvement of the present application, the first transfer mechanism is provided with at least two first horizontal moving rails, two said pick-up tool plates are respectively installed on one of said first horizontal moving rails and can move along the length direction of said first horizontal moving rails, and a height difference is provided between the two said pick-up tool plates so that one of said pick-up tool plates can pass below the other pick-up tool plate.

[0018] As a further improvement of the present application, the second transfer mechanism is provided with at least two second horizontal moving rails, said second horizontal moving rails are arranged in parallel and a gap is provided between them, said material placing tool plates can respectively slide on one of said second horizontal moving rails, and said gap can ensure that the two material placing tool plates do not contact when moving horizontally.

[0019] As a further improvement of the present application, the material picking and placing mechanism comprises:

[0020] at least two fixed arms fixed above said rack, two said fixed arms are respectively fixed outside said first transfer mechanism and said second transfer mechanism;

[0021] a third horizontal moving rail connecting two said fixed arms;

[0022] a second mechanical arm slidingly installed on said third horizontal moving rail, said second mechanical arm can pick up workpieces from said first carrier plate and place them on said material placing tool plates.

[0023] As a further improvement of the present application, the first mechanical hand comprises:

[0024] a mounting fixed seat;

[0025] at least two first mechanical arms horizontally slidingly arranged on said mounting fixed seat, a downward extending clamping part is provided at the outer free end of said first mechanical arm, and said clamping part is provided with a vertical clamping surface;

[0026] a first horizontal driving mechanism for driving said first mechanical arm to make horizontal relative movement and reverse movement;

[0027] a third lifting mechanism for driving said mounting fixed seat to lift and lower.

[0028] As a further improvement of the present application, the first rack and the second rack are both provided with a magazine, the magazine is internally threaded and fixedly connected with a lifting block, and the lifting block is threadedly connected with a vertically arranged lead screw.

[0029] As a further improvement of the present application,

[0030] The first transfer mechanism and the second transfer mechanism are both provided with a lead screw and a nut cooperating with the lead screw, and the material taking jig plate and the material placing jig plate are fixed on the nut, and each lead screw is driven to rotate by a motor.

[0031] One side of the first transfer mechanism and / or the second transfer mechanism is provided with a position sensor fixedly arranged and electrically connected therewith, and the material taking jig plate and / or the material placing jig plate is provided with a moving block, and the motor is controlled to stop moving through cooperation of the moving block and the position sensor.

[0032] As a further improvement of the present application, the position sensor is provided with a light receiver and a light emitter emitting straight light to the light receiver, and when the moving block passes through and stays in the gap between the light receiver and the light emitter, the position sensor controls the motor electrically connected therewith to stop moving.

[0033] The present application has the beneficial effect that the first transfer mechanism and the second transfer mechanism are arranged in the present application, two groups of material taking jig plates and material placing jig plates are arranged in the first transfer mechanism and the second transfer mechanism respectively, the two groups of material taking jig plates and material placing jig plates are arranged in high or horizontal staggered manner respectively, the workpieces on the first carrier plate on the first transfer mechanism are transferred to the second carrier plate on the second transfer mechanism through the material taking and placing mechanism, the present application can ensure that the workpiece transfer is carried out at the same time as the feeding of the first transfer mechanism (the first carrier plate) and the discharging of the second transfer mechanism (the second carrier plate), and the production efficiency is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 is a structural schematic view of the present application;

[0035] Figure 2 is a top view of Figure 1 ;

[0036] Figure 3 is a structural schematic view of the jig table and the shifting mechanism in Figure 1 ;

[0037] Figure 4 is a structural schematic view of the first mechanical hand.

[0038] Figure 5 is a structural schematic view of the material taking and placing mechanism;

[0039] Figure 6 Fig. 1 is a structural schematic diagram of a loading mechanism, a first transfer mechanism and a second transfer mechanism according to the present application.

[0040] Figure 7 Fig. 2 is a structural schematic diagram of the loading mechanism according to the present application. Figure 6 Fig. 3 is a structural schematic diagram of the first transfer mechanism according to the present application.

[0041] Figure 8 Fig. 4 is a structural schematic diagram of the second transfer mechanism according to the present application.

[0042] Figure 9 Fig. 5 is a structural schematic diagram of the second transfer mechanism according to the present application.

[0043] Fig. 1 is a structural schematic diagram of a loading mechanism, a first transfer mechanism and a second transfer mechanism according to the present application. DETAILED DESCRIPTION

[0044] The technical solutions of the present application will be further described below in combination with the drawings and through specific embodiments.

[0045] As shown in Fig. 1, the present application is used to transfer a lens as a workpiece from a first carrier plate 20 to a second carrier plate, the first carrier plate 20 comprises a first plate body for placing the workpiece, and a first cover plate movably covering above the first plate body, the first plate body and the first cover plate are movably connected through a movable buckle, and the first plate body and the second carrier plate are both provided with an acupuncture point for accommodating the workpiece. Figures 1-9

[0046] ​In one embodiment of the present application, the feeding mechanism is used to take out the first carrier plate 20 from the accumulation area and transfer to the first transfer mechanism 204; the first transfer mechanism 204 is provided with at least two taking fixtures 202 for placing the first carrier plate 20, and the taking fixtures 202 are movable along the length direction of the first transfer mechanism 204, and the two taking fixtures 202 are configured to have a height difference or a horizontal position difference, so that the two taking fixtures 202 do not interfere with each other when moving relatively, and the first transfer mechanism 204 is provided with a first station and a second station for stopping the taking fixtures 202, and when one of the taking fixtures 202 is located at the first station, the feeding mechanism transfers the first carrier plate 20 to the taking fixture 202; the second transfer mechanism 208 is provided with at least two placing fixtures 206 for placing the second carrier plate, and the placing fixtures 206 are movable along the length direction of the second transfer mechanism 208, and the two placing fixtures 206 are configured to have a height difference or a horizontal position difference, so that the two placing fixtures 206 do not interfere with each other when moving relatively, and the second transfer mechanism 208 is provided with a third station and a fourth station for stopping the placing fixtures 206, and when the placing fixture 206 is located at the fourth station, the second carrier plate on the placing fixture 206 is taken out; the taking and placing mechanism 400 is used to take the workpiece on the taking fixture 202 located at the second station of the first transfer mechanism 204 and place it on the second carrier plate of the placing fixture 206 located at the second station of the second transfer mechanism 208, and the taking and placing mechanism 400 is used to take the workpiece on the taking fixture 202 located at the second station of the first transfer mechanism 204 and place it on the second carrier plate of the placing fixture 206 located at the third station of the second transfer mechanism 208.

[0047] In addition, the feeding mechanism includes a plurality of fixture tables and a first robot 118, wherein the first robot 118 is used to clamp the fixture tables and the first carrier plate 20 on the taking fixture 202 located at the first station, and move between the fixture tables and the taking fixture 202, and the fixture tables include:

[0048] The first jig table 102 is used for placing the first carrier plate 20 loaded with workpieces, and a first rack 104 is arranged below the first jig table 102, the first rack 104 is loaded with a plurality of first carrier plates 20 from top to bottom, and the first carrier plates 20 are sequentially sent to the first jig table 102 through lifting movement by a first lifting mechanism; the second jig table 106 is used for placing the first carrier plate 20 without load, and a second rack 108 is arranged below the second jig table 106, the second rack 108 is loaded with a plurality of first carrier plates 20 from top to bottom, and the first carrier plates 20 are sequentially moved out of the second jig table 106 from top to bottom through lifting movement by a second lifting mechanism; the third jig table 110 is used for placing the first carrier plate 20, and a poking mechanism 112 is arranged on the side of the third jig table 110, the poking mechanism 112 pushes away the movable buckle connecting the plate body and the first cover plate through horizontal linear movement; and the fifth jig table 116 is used for placing the first cover plate.

[0049] In the embodiment, the first transplanting mechanism and the second transplanting mechanism are arranged, two groups of material taking jig plates 202 and material placing jig plates 206 are arranged in the first transplanting mechanism and the second transplanting mechanism respectively, the two groups of material taking jig plates 202 and material placing jig plates 206 are arranged in high and low or horizontally staggered, the workpieces on the first carrier plate 20 located on the first transplanting mechanism are transferred to the second carrier plate located on the second transplanting mechanism through the material taking and placing mechanism 400, and the first transplanting mechanism feeding (the first carrier plate 20) and the second transplanting mechanism discharging (the second carrier plate) can be simultaneously performed when the workpieces are transferred, so that the production efficiency is greatly improved.

[0050] In addition, the embodiment is arranged with the table top 200 on the rack 300, a plurality of jig tables are arranged on the table top 200, are used for placing the carrier plates in different processes, and in addition, the automatic cover removing of the carrier plate can be realized, so that the automation level of the equipment is significantly improved.

[0051] Specifically, the first carrier plate 20 in the first rack 104 is fed to the first jig table 102 in turn under the action of the first lifting mechanism, which can generally adopt a screw lifting mechanism; the first carrier plate 20 on the first jig table 102 is grabbed by the first manipulator 118 to the third jig table 110; the toggle arm 122 on the toggle mechanism 112 is driven by the second horizontal driving mechanism to move horizontally in a straight line, thereby pushing the movable buckle off the first carrier plate 20; the third jig table 110 is grabbed by the first manipulator 118 to the material taking jig plate 202 located at the first station; the first manipulator 118 grabs the cover plate above the first carrier plate 20 located on the material taking jig plate 202 and places it on the fifth jig table 116; after the first carrier plate 20 on the material taking jig plate 202 is processed and returned to the first station, the first manipulator 118 grabs the cover plate on the fifth jig table 116 and places it above the empty plate body on the material taking jig plate 202, and then grabs and places the entire first carrier plate 20 on the second jig table 106; the first carrier plate 20 on the second jig table 106 is moved downward in turn through the second lifting mechanism on the second rack 108, which can generally adopt a screw lifting mechanism.

[0052] In another embodiment of the present application, the toggle mechanism 112 comprises:

[0053] The toggle arm 122 is fixed below the third jig table 110, and when the third jig table 110 is loaded with the first carrier plate 20, the toggle arm 122 can extend to the side of the first carrier plate 20, and the horizontal distance from the toggle arm 122 to the side of the first carrier plate 20 is less than the horizontal distance from the outermost shell of the movable buckle to the side of the first carrier plate 20.

[0054] The second horizontal driving mechanism drives the horizontal movement of the toggle arm 122, and the second horizontal driving mechanism drives the toggle arm 122 to contact the movable buckle, thereby pushing the movable buckle away from the first carrier plate 20.

[0055] The toggle mechanism 112 is provided, which can automatically remove the movable buckle on the first carrier plate 20.

[0056] In another embodiment of the present application, the first transfer mechanism 204 is provided with at least two first horizontal moving rails 210, and two pick-up tool plates 202 are respectively installed on the first horizontal moving rails 210 and can move along the length direction of the first horizontal moving rails 210, and a height difference is provided between the two pick-up tool plates 202, so that one pick-up tool plate 202 can pass below the other pick-up tool plate 202. The second transfer mechanism 208 is provided with at least two second horizontal moving rails 212, the second horizontal moving rails 212 are provided in parallel and a gap is provided between the second horizontal moving rails 212, and the material placing tool plates 206 can respectively slide on the second horizontal moving rails 212, and the gap can ensure that the two material placing tool plates 206 do not contact when moving horizontally.

[0057] The pick-up tool plates 202 on the first transfer mechanism 204 are provided with a height difference, and the material placing tool plates 206 on the second transfer mechanism 208 are provided with a horizontal position difference, so as to ensure that the two groups of tool plates do not interfere with each other when moving.

[0058] In an embodiment of the present application, the pick-up and placing mechanism 400 comprises:

[0059] At least two fixed arms 402 are fixed above the rack 300, and the two fixed arms 402 are respectively fixed on the outer sides of the first transfer mechanism 204 and the second transfer mechanism 208;

[0060] A third horizontal moving rail 404 is connected between the two fixed arms;

[0061] A second mechanical arm 406 is slidingly installed on the third horizontal moving rail 404, and the second mechanical arm 406 can pick up the workpiece from the first carrier plate 20 and place the workpiece on the material placing tool plate 206.

[0062] The pick-up and placing mechanism 400 can be used to transfer the workpiece at the second station and the third station.

[0063] In an embodiment of the present application, the first mechanical hand 118 comprises: a mounting fixed seat; at least two first mechanical arms 120 horizontally slidingly arranged on the mounting fixed seat, and a downward extending clamping part is arranged at the outer free end of the first mechanical arm 120, and the clamping part is provided with a vertical clamping surface; a first horizontal driving mechanism for driving the first mechanical arm 120 to move horizontally and reversely; and a third lifting mechanism for driving the mounting fixed seat to lift.

[0064] In an embodiment of the present application, the first rack 104 and the second rack 108 are both provided with a material bin, and the material bin is used to vertically and spacedly arrange the first carrier plate 20, the material bin is fixedly connected with a lifting block provided with an internal thread, and the lifting block is threadedly connected with a vertically arranged screw rod.

[0065] In one embodiment of the present application, the first transfer mechanism 204 and the second transfer mechanism 208 are each provided with a screw rod and a nut cooperating with the screw rod, the pick-up fixture plate 202 and the drop-off fixture plate 206 are fixed on the nut, and each screw rod is driven to rotate by a motor.

[0066] In one embodiment of the present application, the first robot 118 is installed on a fixed block 124 in a lifting manner, the fixed block 124 is slidingly installed on the first horizontal guide rail 126, and the two free ends of the first horizontal guide rail 126 are slidingly installed on the two second horizontal guide rails 128 respectively.

[0067] One side of the first transfer mechanism 204 and / or the second transfer mechanism 208 is provided with a position sensor 214 fixed in position and electrically connected thereto, and the pick-up fixture plate 202 and / or the drop-off fixture plate 206 is provided with a moving block 216, and the motor is controlled to stop moving through the cooperation of the moving block 216 and the position sensor 214.

[0068] In one embodiment of the present application, the position sensor 214 is provided with a light receiver and a light emitter emitting linear light to the light receiver, and when the moving block 216 passes through and stays in the gap between the light receiver and the light emitter, the position sensor 214 controls the motor electrically connected thereto to stop moving.

[0069] The position sensor 214 is arranged on the first transfer mechanism 204 and the second transfer mechanism 208, and is respectively used to control the first transfer mechanism 204 to stop moving when moving to the first station and the second station and the second transfer mechanism 208 to stop moving when moving to the third station and the fourth station.

[0070] The technical principles of the present application are described above in combination with specific embodiments. These descriptions are only for explaining the principles of the present application, and cannot be explained as limiting the protection scope of the present application in any way. Based on the explanations herein, other specific embodiments of the present application can be conceived by those skilled in the art without creative labor, and these embodiments will fall within the protection scope of the present application.

Claims

1. A lens loading machine for transferring a lens, which is a workpiece, from a first carrier plate (20) to a second carrier plate, the first carrier plate (20) comprising a first plate body for placing the workpiece and a first cover plate movably covering the first plate body, the first plate body and the first cover plate being movably connected by a movable snap fastener, and both the first plate body and the second carrier plate being provided with a cavity for accommodating the workpiece, characterized in that, The device comprises a rack (300) and a feeding mechanism, a first transfer mechanism (204), a second transfer mechanism (208) and a pick-and-place mechanism (400) arranged on the rack (300), wherein: The feeding mechanism is used to take out the first carrier plate (20) from the accumulation area and transfer it to the first transfer mechanism (204); The first transfer mechanism (204) is provided with at least two pick-up jigs (202) for placing the first carrier plate (20), and each pick-up jig (202) can move along the length direction of the first transfer mechanism (204). The two pick-up jigs (202) are configured to have a height difference or a horizontal position difference, so that the two pick-up jigs (202) can move relative to each other without interfering with each other. The first transfer mechanism (204) is provided with a first station and a second station where the pick-up jigs (202) stop. When one of the pick-up jigs (202) is located at the first station, the feeding mechanism transfers the first carrier plate (20) to the pick-up jig (202); The second transfer mechanism (208) can place at least two drop-off jigs (206) for placing the second carrier plate, and each drop-off jig (206) can move along the length direction of the second transfer mechanism (208). The two drop-off jigs (206) are configured to have a height difference or a horizontal position difference, so that the two drop-off jigs (206) can move relative to each other without interfering with each other. The second transfer mechanism (208) is provided with a third station and a fourth station where the drop-off jigs (206) stop. When the drop-off jig (206) is located at the fourth station, the second carrier plate on the drop-off jig (206) is taken out; The pick-and-place mechanism (400) is used to pick up the workpiece on the pick-up jig (202) located at the second station on the first transfer mechanism (204) and place it on the second carrier plate of the drop-off jig (206) located at the third station on the second transfer mechanism (208).

2. The lens loading machine of claim 1, wherein, The feeding mechanism comprises a plurality of jig tables and a first robot (118), wherein the first robot (118) is used to clamp the jig tables and the first carrier plate (20) on the pick-up jig (202) located at the first station and move between the jig tables and the pick-up jig (202). The jig tables comprise: A first jig table (102) for placing the first carrier plate (20) loaded with workpieces. A first rack (104) is arranged below the first jig table (102), and a plurality of first carrier plates (20) are loaded from top to bottom on the first rack (104). The first carrier plates (20) are sequentially sent to the first jig table (102) by lifting movement through a first lifting mechanism. A second jig table (106) is used for placing the first carrier plate (20) without load, and a second rack (108) is arranged below the second jig table (106), the second rack (108) is loaded with a plurality of first carrier plates (20) from top to bottom, and the first carrier plates (20) are sequentially moved out of the second jig table (106) by lifting movement through a second lifting mechanism; A third jig table (110) is used for placing the first carrier plate (20), and a poking mechanism (112) is arranged on the side of the third jig table (110), the poking mechanism (112) pushes away the movable buckle connecting the plate body and the first cover plate through horizontal linear motion; A fifth jig table (116) is used for placing the first cover plate.

3. A lens loading machine according to claim 2, wherein, The poking mechanism (112) comprises: A poking arm (122) fixed below the third jig table (110), when the third jig table (110) is loaded with the first carrier plate (20), the poking arm (122) can extend to the side of the first carrier plate (20), and the horizontal distance from the poking arm (122) to the side of the first carrier plate (20) is less than the horizontal distance from the outermost shell of the movable buckle to the side of the first carrier plate (20); A second horizontal driving mechanism drives the horizontal movement of the poking arm (122), and the second horizontal driving mechanism drives the poking arm (122) to contact the movable buckle, so as to push the movable buckle away from the first carrier plate (20).

4. The lens loading machine of claim 3, wherein The first transfer mechanism (204) is provided with at least two first horizontal moving guide rails (210), two material taking jig plates (202) are respectively installed on one first horizontal moving guide rail (210) and can move along the length direction of the first horizontal moving guide rail (210), and a height difference is arranged between the two material taking jig plates (202), so that one material taking jig plate (202) can pass below the other material taking jig plate (202).

5. A lens loading machine according to claim 4, wherein, The second transfer mechanism (208) is provided with at least two second horizontal moving guide rails (212), the second horizontal moving guide rails (212) are arranged in parallel and a gap is arranged between them, the material placing jig plate (206) can slide on one second horizontal moving guide rail (212) respectively, and the gap can ensure that the two material placing jig plates (206) do not contact when moving horizontally.

6. A lens loading machine according to claim 5, wherein, The material taking and placing mechanism (400) comprises: At least two fixed arms (402) are fixed above the rack (300), and the two fixed arms (402) are respectively fixed outside the first transfer mechanism (204) and the second transfer mechanism (208); A third horizontal moving guide rail (404) connects the two fixed arms (402), and the third horizontal moving guide rail (404) is located directly above the second station and the third station; A second mechanical arm (406) is slidingly installed on the third horizontal moving guide rail (404), and the second mechanical arm (406) can grab a workpiece from the first carrier plate (20) on the material taking jig plate and place the workpiece on the second carrier plate of the material placing jig plate (206).

7. A lens loading machine according to claim 6, wherein, The first mechanical hand (118) comprises: A mounting fixed seat; At least two first mechanical arms (120) are horizontally slidingly arranged on the mounting fixed seat, and a downward clamping part is arranged at the outer free end of each first mechanical arm (120), and the clamping part is provided with a vertical clamping surface; A first horizontal driving mechanism is arranged for driving the first mechanical arms (120) to move horizontally and reversely; A third lifting mechanism is arranged for driving the mounting fixed seat to lift.

8. A lens loading machine according to claim 7, wherein, The first rack (104) and the second rack (108) are each provided with a rack, and the rack is internally threaded and fixedly connected with a lifting block, and the lifting block is in threaded connection with a vertically arranged lead screw.

9. The lens loading machine according to claim 8, wherein, The first transfer mechanism (204) and the second transfer mechanism (208) are each provided with a lead screw and a nut matched with the lead screw, the material taking jig plate (202) and the material placing jig plate (206) are fixed on the nut, and each lead screw is driven to rotate by a motor; One side of the first transfer mechanism (204) and / or the second transfer mechanism (208) is provided with a position sensor (214) fixed in position and electrically connected therewith, the material taking jig plate (202) and / or the material placing jig plate (206) is provided with a moving block (216), and the motor is controlled to stop moving through cooperation of the moving block (216) and the position sensor (214).

10. A lens loading machine according to claim 9, wherein, The position sensor (214) is provided with a light receiver and a light emitter emitting linear light to the light receiver, and when the moving block (216) passes through and stays in the gap between the light receiver and the light emitter, the position sensor (214) controls the motor electrically connected therewith to stop moving.

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