Device for reducing internal stress of free-form surface reflector

Abstract

A free-form surface reflector internal stress reducing device comprises a multi-layer support, a pair of chain conveying devices is arranged on the multi-layer support, each chain conveying device comprises transmission gears arranged at the two ends of each layer, and a transmission chain of each chain conveying device is meshed with the transmission gears of each layer. A connecting rod is fixed on the transmission chain between the pair of chain conveying devices, and a hook for hanging the reflecting mirror is arranged on the connecting rod; temperature control assemblies for reducing stress are arranged on one side of the multi-layer support from top to bottom at intervals, a feeding assembly is arranged on one side of the multi-layer support, a discharging assembly is arranged on the other side of the multi-layer support, and a driving assembly for driving the transmission chain is further arranged on the multi-layer support; according to the utility model, the heating fan is used for heating the reflecting mirror, so that the temperature of the passing reflecting mirror is gradually reduced to be close to the temperature of a workshop, and the stress pressure generated when the reflecting mirror is just produced is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of devices for reducing internal stress in reflectors, and in particular to a device for reducing internal stress in a freeform surface reflector. Background Technology

[0002] Freeform surface mirrors have extremely high requirements for optical imaging, but the release of internal stress during manufacturing is a significant factor contributing to surface shape changes. The internal stress of freeform surface mirrors mainly arises during the injection molding process. When removed from the mold, the mirror is at a high temperature, but its temperature drops rapidly upon contact with room temperature air, preventing the timely release of internal stress. Currently, the method for eliminating internal stress during freeform surface mirror manufacturing involves baking in an oven. After baking at a constant temperature for a certain period, the internal stress of the freeform surface mirror is released, and its surface shape tends to stabilize. However, this manufacturing process is difficult to automate with subsequent processes, and its implementation incurs high labor and time costs, affecting the manufacturing efficiency of freeform surface mirrors. Utility Model Content

[0003] The purpose of this invention is to provide a device for reducing internal stress in a freeform surface reflector by gradually cooling the reflector to ensure the surface shape requirements of the reflector.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] This utility model proposes a device for reducing internal stress in a freeform surface reflector, comprising a multi-layer support, a pair of chain conveying devices on the multi-layer support, each chain conveying device including a transmission gear at both ends of each layer, the transmission chain of each chain conveying device meshing with the transmission gear of each layer, a connecting rod fixed to the transmission chain between the pair of chain conveying devices, and a hook for hanging the reflector on the connecting rod; temperature control components for stress reduction are spaced from top to bottom on one side of the multi-layer support, a feeding component is provided on one side of the multi-layer support, a discharging component is provided on the other side of the multi-layer support, and a drive component for driving the transmission chain is also provided on the multi-layer support.

[0006] Furthermore, the multi-layer support structure consists of a first layer support, a second layer support, a third layer support, a fourth layer support, a fifth layer support, a sixth layer support, a seventh layer support, and an eighth layer support from top to bottom. The temperature control component includes a heating fan disposed on one side of the third layer support, the fourth layer support, and the sixth layer support, and the temperature generated by the heating fan decreases layer by layer from top to bottom.

[0007] Furthermore, temperature zone isolation doors are also provided on the third, fourth, and sixth layer supports at the air outlet of the heating fan.

[0008] Furthermore, the drive assembly includes a drive motor mounted on the eighth layer bracket, the output shaft of the drive motor being fixed with a drive gear, the drive gear being sleeved on the transmission chain to drive the transmission chain.

[0009] The further described feeding assembly includes a T-shaped plate disposed on one side of the multi-layer support, a feeding sprocket hinged to the T-shaped plate, a transmission chain passing around the feeding sprocket, an opening being formed on the multi-layer support, and the T-shaped plate being disposed on the opening and extending outward.

[0010] Furthermore, the feeding end of the feeding assembly is also provided with a feeding lifting door.

[0011] Furthermore, the discharge assembly includes an extension plate extending upward on the other side of the multi-layer support, with a discharge sprocket hinged to the upper end of the extension plate, the transmission chain passing around the discharge sprocket, and an openable discharge gate also provided on the extension plate.

[0012] Furthermore, temperature sensors for monitoring temperature are installed on the second, fifth, and sixth layer supports.

[0013] The beneficial effects of this utility model are as follows: by setting up a heating fan to heat the reflector, and the heating fan is set with three temperature zones, the temperature of the reflector passing through it gradually decreases to close to the temperature of the workshop, reducing the stress pressure generated when the reflector is first produced, so that the internal stress no longer affects the surface effect of the reflector. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the present invention.

[0015] Figure 2 This is a cross-sectional view of the structure of the present invention. Figure 1 .

[0016] Figure 3 This is a cross-sectional view of the structure of the present invention. Figure 2 .

[0017] Figure 4 for Figure 3 Enlarged view of the structure at point A in the middle.

[0018] Figure 5 for Figure 3 Enlarged view of the structure at point B in the middle.

[0019] In the diagram, 1-multi-layer support, 101-first layer support, 102-second layer support, 103-third layer support, 104-fourth layer support, 105-fifth layer support, 106-sixth layer support, 107-seventh layer support, 108-eighth layer support, 2-transmission gear, 3-transmission chain, 4-connecting rod, 5-hook, 6-heating fan, 7-temperature zone isolation door, 8-drive motor, 9-drive gear, 10-T-shaped plate, 11-feed sprocket, 12-feed lifting door, 13-extension plate, 14-discharge sprocket, 15-discharge door, 16-temperature sensor, 17-reflector. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Please see Figures 1 to 5 This utility model provides an embodiment:

[0022] Please see Figure 1 and Figure 5 A device for reducing internal stress in a freeform surface reflector includes a multi-layer support 1. The multi-layer support 1 has a pair of chain conveying devices. Each chain conveying device includes a transmission gear 2 at both ends of each layer. The transmission chain 3 of each chain conveying device meshes with the transmission gear 2 of each layer. A connecting rod 4 is fixed to the transmission chain 3 between the pair of chain conveying devices. The connecting rod 4 is provided with a hook 5 for hanging the reflector 17. Temperature control components for reducing stress are arranged at intervals from top to bottom on one side of the multi-layer support 1. A feeding component is arranged on one side of the multi-layer support 1. A discharging component is arranged on the other side of the multi-layer support 1. A drive component for driving the transmission chain 3 is also provided on the multi-layer support 1.

[0023] Please see Figure 1 The multi-layer support 1 consists of a first layer support 101, a second layer support 102, a third layer support 103, a fourth layer support 104, a fifth layer support 105, a sixth layer support 106, a seventh layer support 107, and an eighth layer support 108, from top to bottom. The temperature control component includes a heating fan 6 disposed on one side of the third layer support 103, the fourth layer support 104, and the sixth layer support 106. The temperature generated by the heating fan 6 decreases layer by layer from top to bottom.

[0024] Please see Figure 1 Temperature zone isolation doors 7 are also installed at the air outlet of the heating fan 6 on the third layer support 103, the fourth layer support 104, and the sixth layer support 106. The temperature zone isolation doors 7 ensure that the set temperature of each temperature zone can be kept stable and prevent cross-temperature.

[0025] Please see Figure 1The drive assembly includes a drive motor 8 mounted on the eighth-layer support 108. The output shaft of the drive motor 8 is fixed with a drive gear 9, which is sleeved on the transmission chain 3 to drive the chain. When the drive motor 8 is turned on, it drives the transmission chain 3. The connecting rod 4 is fixed between a pair of chain transmission devices, which in turn drives the reflector 17 within this invention.

[0026] Please see Figure 1 The feeding assembly includes a T-shaped plate 10 disposed on one side of the multi-layer support 1. A feeding sprocket 11 is hinged to the T-shaped plate 10. A transmission chain 3 passes around the feeding sprocket 11. An opening is formed in the multi-layer support 1, and the T-shaped plate 10 is disposed on the opening and extends outward. When the material moves with the transmission chain 3, it will rise along the trajectory of the transmission chain 3 and then gradually descend.

[0027] Please see Figure 1 The feeding end of the feeding component is also equipped with a feeding lifting door 12.

[0028] Please see Figure 1 The discharge assembly includes an extension plate 13 extending upwards on the other side of the multi-layer support 1. A discharge sprocket 14 is hinged to the upper end of the extension plate 13, and a transmission chain 3 passes around the discharge sprocket 14. An openable discharge gate 15 is also provided on the extension plate 13. When the material moves with the transmission chain 3, it rises along the trajectory of the transmission chain 3, passes through the discharge gate 15 for material collection, and then passes through the eighth layer support 108, repeating this process.

[0029] Please see Figure 1 Temperature sensors 16 for monitoring temperature are installed on the second layer support 102, the fifth layer support 105, and the sixth layer support 106. The temperature sensors 16 can monitor temperature changes within the temperature zone at any time.

[0030] Working principle: After the reflector 17 is injection molded, it is at a high temperature. A robotic arm removes the reflector 17 from the mold. The feeding lift door 12 is opened, and the reflector 17 is hung on the hook 5 on the connecting rod 4. The drive motor 8 is started. The output shaft of the drive motor 8 is fixed with a drive gear 9, which is sleeved on the transmission chain 3. When the drive motor 8 starts, it drives the transmission chain 3. The connecting rod 4 is fixed between a pair of chain conveyors, which in turn drives the reflector 17 within the device. The reflector 17 gradually passes through the first support 101, the second support 102, the third support 103, the fourth support 104, the fifth support 105, the sixth support 106, and the seventh support 107. The third support 103, the fourth support 104, and the sixth support 107... A heating fan 6 is provided on one side of the reflector 17. When the reflector 17 passes through the third support 103, the fourth support 104 and the sixth support 106, the hot air generated by the heating fan 6 will raise the temperature of the area within the range. The hot air generated by the heating fan 6 from top to bottom has a temperature of 100℃, 90℃ and 80℃, which will gradually cool the reflector 17 as it passes through, reducing the stress generated inside it. Temperature sensors 16 are provided on the second support 102, the fifth support 105 and the sixth support 106 to monitor the temperature changes in the temperature zone at any time. Then the reflector 17 will pass through the discharge assembly between the seventh support 107 and the eighth support 108. By opening the discharge door 15, the reflector 17 can be moved out by the robot. At this time, the reflector 17 has been cooled to a state close to the workshop temperature, which can eliminate the impact of the internal stress of the reflector 17.

[0031] The embodiments of this utility model are given for the purpose of illustration and description. Although embodiments of this utility model have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this utility model. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this utility model.

Claims

1. A device for reducing internal stress in a freeform surface reflector, characterized in that: The system includes a multi-layer support structure with a pair of chain conveying devices. Each chain conveying device includes transmission gears at both ends of each layer. The transmission chain of each chain conveying device meshes with the transmission gears of each layer. A connecting rod is fixed to the transmission chain between the pair of chain conveying devices, and a hook for hanging the reflector is provided on the connecting rod. Temperature control components for stress reduction are spaced from top to bottom on one side of the multi-layer support structure. A feeding component is provided on one side of the multi-layer support structure, and a discharging component is provided on the other side. A drive component for driving the transmission chain is also provided on the multi-layer support structure.

2. The apparatus for reducing internal stress of a free-form mirror according to claim 1, wherein: The multi-layer support structure consists of a first layer, a second layer, a third layer, a fourth layer, a fifth layer, a sixth layer, a seventh layer, and an eighth layer, arranged from top to bottom. The temperature control component includes a heating fan disposed on one side of the third, fourth, and sixth layer supports, and the temperature generated by the heating fan decreases layer by layer from top to bottom.

3. The apparatus for reducing internal stress of a freeform mirror according to claim 2, wherein: Temperature zone isolation doors are also provided on the third, fourth, and sixth layer supports at the air outlet of the heating fan.

4. The apparatus for reducing internal stress of a freeform mirror according to claim 2, wherein: The drive assembly includes a drive motor mounted on the eighth layer bracket. The output shaft of the drive motor is fixed with a drive gear, which is sleeved on the transmission chain to drive the transmission chain.

5. The apparatus for reducing internal stress of a freeform mirror according to claim 1, wherein: The feeding assembly includes a T-shaped plate disposed on one side of the multi-layer support, a feeding sprocket is hinged to the T-shaped plate, the transmission chain passes around the feeding sprocket, an opening is opened on the multi-layer support, and the T-shaped plate is disposed on the opening and extends outward.

6. The apparatus for reducing internal stress of a freeform mirror according to claim 5, wherein: The feeding end of the feeding assembly is also equipped with a feeding lifting door.

7. The apparatus for reducing internal stress of a freeform mirror according to claim 1, wherein: The discharge assembly includes an extension plate extending upward on the other side of the multi-layer support. A discharge sprocket is hinged to the upper end of the extension plate, and the transmission chain passes around the discharge sprocket. An openable and closable discharge gate is also provided on the extension plate.

8. The apparatus for reducing internal stress of a freeform mirror according to claim 2, wherein: Temperature sensors for monitoring temperature are installed on the second, fifth, and sixth layer supports.

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