Polishing restraining mechanism

Abstract

The utility model relates to the technical field of clamps, and particularly discloses a polishing restraining mechanism. Comprising a mounting base and a restraining mechanism arranged on the mounting base; the restraining mechanism comprises a first restraining arm and a second restraining arm; a lens mounting space is formed between the end parts of the first restraint arm and the second restraint arm; the first restraining arm and the second restraining arm are arranged on the two sides of a lead screw respectively, and a spiral line on the lead screw extends from the middle part to the two ends to form a first installation end and a second installation end. Spiral lines of the first mounting end and the second mounting end are opposite in rotation direction; when the lead screw rotates forwards, the lens installation space between the first restraining arm and the second restraining arm is increased, and the lens is released. When the lead screw rotates reversely, the lens installation space between the first restraining arm and the second restraining arm is enlarged, and the lens is clamped. By means of the structure, the problem that lenses of different sizes need to be clamped and polished by replacing different clamps is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a polishing constraint mechanism. Background Art

[0002] During the lens manufacturing process, finished lenses typically undergo a frosting treatment in a polishing machine to achieve the desired optical surface quality. To ensure surface smoothness and precision, at least two polishing steps are typically required. The first step is a rough polish, which removes most surface imperfections and unevenness. This is followed by a fine polish, which further improves the surface quality and ensures it meets optical standards. Currently, rough polishing and frosting equipment primarily utilizes a clamping mechanism to secure the lens, then uses a rotating wiper head to approach and wipe the lens surface. The cylinder in the clamping mechanism is designed to match the cross-sectional shape of the lens, ensuring precise insertion and positioning. To prevent the lens from loosening or shifting during processing, operators manually adjust the clamping jaws around the cylinder to ensure a secure grip. Existing clamping mechanisms typically utilize three- or four-finger pneumatic grippers to secure and hold the glass lens. However, this hard-contact clamping method presents certain challenges. Because hard contact exerts significant pressure on the lens surface, especially during polishing, this pressure can cause scratches, dents, or other forms of damage to the lens surface. This damage not only affects the optical performance of the lens, but can also cause the lens to fail to meet quality standards, requiring reprocessing or scrapping, increasing production costs and time.

[0003] The patent "A Collet for CNC Polishing of Lenses" (publication number CN211220049U, hereinafter referred to as Prior Art 1) discloses that Prior Art 1 comprises a circular sleeve and a cup-shaped ring. A cup-shaped ring is designed inside the circular sleeve, ensuring a tight fit between the two. To further optimize performance, a flexible spring pad is incorporated into the upper wall of the circular sleeve. This design not only increases the device's elasticity and adaptability but also effectively absorbs and cushions external forces, protecting the lens from damage. A layer of balls is cleverly positioned between the circular sleeve and the cup-shaped ring. These balls act as bearings, allowing the cup-shaped ring to rotate freely within the circular sleeve without friction. This design not only extends the device's service life but also ensures that the cup-shaped ring does not damage the lens's side during the CNC polishing process. A connecting rod is positioned midway along the lower wall of the circular sleeve. This connecting rod not only enhances the overall structural stability of the device but also provides a convenient grip for the operator, making operation more convenient and safer. At the same time, the outer side wall of the cup-shaped collar is in close contact with the ball, ensuring that the ball will not fall off during operation, thereby ensuring the stability and reliability of the entire device.

[0004] Although the solution of prior art 1 effectively protects the sides of the lens during CNC polishing by introducing a ball bearing design, thereby preventing damage that may occur during the polishing process, this technical solution is not ideal in practical applications. Specifically, for each lens of different sizes, the operator needs to replace the sleeve of the corresponding size to ensure that the ball bearings can properly protect the sides of the lens. This frequent replacement operation is not only cumbersome but also wastes valuable time during the replacement process. Therefore, this technical solution is not suitable for production environments that require processing lenses of multiple different sizes, thus limiting its widespread application in actual production. Utility Model Content

[0005] In view of this, an embodiment of the present invention provides a polishing constraint mechanism to solve the problem in the prior art that lenses of various sizes cannot be clamped and processed by one mechanism.

[0006] An embodiment of the utility model provides a polishing constraint mechanism, including a mounting seat and a constraint mechanism arranged on the mounting seat; the constraint mechanism includes a first constraint arm and a second constraint arm; a lens installation space is formed between the ends of the first constraint arm and the second constraint arm; the first constraint arm and the second constraint arm are respectively arranged on both sides of a screw rod, and the spiral line on the screw rod extends from the middle part to both ends to be set as a first mounting end and a second mounting end; the spiral lines of the first mounting end and the second mounting end rotate in opposite directions; the first constraint arm and the second constraint arm are hinged to the first mounting end and the second mounting end respectively; when the screw rod rotates forward, the lens installation space between the first constraint arm and the second constraint arm increases, and the lens is released; when the screw rod is reversed, the lens installation space between the first constraint arm and the second constraint arm decreases, and the lens is clamped.

[0007] Preferably, the restraint mechanism further includes a third restraint arm; the third restraint arm is arranged below the first restraint arm and the second restraint arm through a support mechanism provided on the mounting seat.

[0008] Preferably, the mounting base includes a side plate and a bottom plate vertically assembled with the side plate; a first supporting short arm and a second supporting short arm are respectively provided near both sides of the side plate; a motor is provided on the outer side of the first supporting short arm; and both ends of the screw rod are respectively hinged to the inner sides of the motor and the second supporting short arm.

[0009] Preferably, the first mounting end is provided with a first support arm on the inner side of the first constraint arm; the second mounting end is provided with a second support arm on the inner side of the second constraint arm; the first support arm and the second support arm are hinged to the first mounting end and the second mounting end respectively; when the screw rod rotates forward, the first support arm and the second support arm move to both sides of the screw rod; when the screw rod rotates reversely, the first support arm and the second support arm move toward the inner side of the screw rod.

[0010] Preferably, the side plate is provided with a first support groove and a second support groove respectively adapted to the first support arm and the second support arm on the surface on which the base plate is installed; the first support arm and the second support arm are respectively arranged in the first support groove and the second support groove, and move based on the first support groove and the second support groove.

[0011] Preferably, one end of the first restraining arm and the second restraining arm is a clamping end; and the clamping end is arranged in a preset arc.

[0012] Preferably, the support mechanism includes a first support long arm and a second support long arm arranged on both sides of the side plate; a crossbeam is provided between the first support long arm and the second support long arm.

[0013] Preferably, the third restraint arm is provided on the crossbeam and rotates based on the crossbeam.

[0014] Preferably, one end of the third restraint arm is provided with an angle adjustment mechanism and is hinged to the angle adjustment mechanism; the third restraint arm adjusts the restraint angle between the third restraint arm and the lens through the angle adjustment mechanism.

[0015] Preferably, the end of the third restraining arm in contact with the lens is configured as an elastic end; the elastic end is provided with a restraining surface, and the third restraining arm is in contact with the lens through the restraining surface.

[0016] The polishing constraint mechanism provided by the utility model has the following beneficial effects:

[0017] This polishing constraint mechanism enables rapid adjustment to accommodate lenses of varying sizes. Because the first and second constraint arms increase or decrease the lens installation space through the forward and reverse rotation of the lead screw, operators simply rotate the lead screw to load and unload the lens, significantly improving production efficiency. This structure ensures lens stability during the polishing process. Because the first and second constraint arms are hinged to the ends of the lead screw, the lens is evenly clamped during polishing, preventing lens displacement or deformation caused by unstable clamping. This stability is crucial to ensuring lens polishing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work, and these are all within the scope of protection of the present invention.

[0019] Figure 1 It is a schematic diagram of the overall structure of a polishing constraint mechanism;

[0020] Figure 2 is a structural schematic diagram of a polishing constraint mechanism in Example 1;

[0021] Figure 3 It is a schematic diagram of the partial structure of a polishing constraint mechanism;

[0022] Figure 4 It is a schematic diagram of the angle adjustment mechanism structure of a polishing constraint mechanism;

[0023] Figure 5 It is a schematic diagram of the screw structure of a polishing constraint mechanism;

[0024] Figure 6 It is a structural diagram of a polishing constraint mechanism and a polishing machine thereof;

[0025] Parts and numbers in the picture:

[0026] 100 - mounting base, 110 - side plate, 111 - first support slot, 112 - second support slot, 113 - first support short arm, 114 - second support short arm, 115 - first support long arm, 116 - second support long arm, 117 - crossbeam; 120 - bottom plate; 130 - motor;

[0027] 210 - first restraining arm; 220 - second restraining arm, 221 - clamping end; 230 - third restraining arm, 231 - elastic end, 232 - restraining surface; 240 - screw rod, 241 - first mounting end, 242 - second mounting end, 243 - first support arm, 244 - second support arm;

[0028] 310-Lens installation space;

[0029] 400-lens, 410-protective case;

[0030] 500-angle adjustment mechanism, 510-driving member, 520-turntable, 530-column;

[0031] 600-Polishing machine, 610-Mounting arm, 620-Working arm. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. It should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. Moreover, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, elements defined by the phrase "comprises..." do not exclude the presence of additional identical elements in the process, method, article, or device that includes the elements. If there is no conflict, the embodiments of the present invention and the various features therein may be combined with each other and are all within the scope of protection of the present invention.

[0033] Example 1

[0034] See Figure 2 , an embodiment of the present invention provides a polishing constraint mechanism. After the lens 400 is formed, it needs to undergo multiple fine polishing processes to ensure that it achieves the required optical performance and surface quality. Lenses 400 of different sizes and shapes need to be clamped using fixtures of specific sizes during the polishing process to fix the lens 400 and ensure that it remains stable during the polishing process. Traditional polishing methods often require special fixtures for each size of lens 400, which not only increases production costs but also reduces production efficiency. However, through the polishing constraint mechanism of the present invention, adaptation and polishing of lenses 400 of various sizes can be achieved. This polishing constraint mechanism has high versatility and can adapt to lenses 400 of different specifications, thereby greatly reducing dependence on special fixtures. In this way, not only is production efficiency improved, but production costs are also reduced, making the entire polishing process more flexible and efficient.

[0035] The present invention relates to a polishing constraint mechanism, which primarily comprises a mounting seat 100 and a constraint mechanism disposed on the mounting seat 100. The mounting seat 100, as a bearing mechanism, primarily functions to bear and secure the constraint mechanism, ensuring that the constraint mechanism can be stably mounted thereon. In this manner, the constraint mechanism can effectively constrain the position of the lens 400, thereby ensuring that the lens 400 remains in a fixed and accurate position during the polishing process, thereby ensuring the polishing effect. This arrangement not only improves the stability and reliability of the polishing process, but also significantly enhances the quality and efficiency of the polishing of the lens 400.

[0036] See Figure 3 The constraint mechanism mainly includes two parts, namely the first constraint arm 210 and the second constraint arm 220. The ends of the two constraint arms together form a spatial area for installing the lens 400. Through the coordinated action of the two constraint arms, the degrees of freedom of the lens 400 can be effectively restricted and constrained. Specifically, the ends of the first constraint arm 210 and the second constraint arm 220 cooperate with each other to form a specific structure, thereby ensuring that the lens 400 can be accurately installed and fixed in a predetermined position and direction. In this way, the degrees of freedom of the lens 400, such as movement and rotation, are effectively controlled, ensuring the stability and accuracy of the lens 400 during use.

[0037] In the present invention, the first restraint arm 210 and the second restraint arm 220 are respectively arranged on either side of a screw rod 240. The main function of the screw rod 240 is to install and fix the first restraint arm 210 and the second restraint arm 220 and ensure that they can move based on the screw rod 240. With this arrangement, the first restraint arm 210 and the second restraint arm 220 can move along a predetermined trajectory under the guidance of the spiral line set on the screw rod 240.

[0038] For further information, see Figure 5 The spiral line on the screw rod 240 extends from the middle part to both ends, namely the first mounting end 241 and the second mounting end 242. The spiral lines of the two mounting ends are arranged in opposite directions, that is, one is left-handed and the other is right-handed. The first constraint arm 210 and the second constraint arm 220 are respectively connected to the first mounting end 241 and the second mounting end 242 in a hinged manner. This makes the screw rod 240 more stable during movement and can also effectively transmit torque to ensure the normal operation of the equipment. Through such a setting, when the screw rod 240 rotates, it can drive the lens installation space 310 between the first constraint arm 210 and the second constraint arm 220 to increase or decrease.

[0039] As the screw 240 rotates forward, the first and second restraining arms 210, 220 move toward the ends of the screw 240 as the screw 240 rotates. Consequently, the lens installation space 310 between the first and second restraining arms 210, 220 gradually increases. As the space increases, the previously clamped lens 400 is released, allowing it to be freely moved or adjusted. This design makes installation, replacement, or adjustment of the lens 400 much more convenient and quicker.

[0040] Conversely, when the screw 240 rotates in the reverse direction, the first and second restraining arms 210, 220 move toward the center of the screw 240 as the screw 240 rotates. The lens mounting space 310 between the first and second restraining arms 210, 220 gradually decreases. As the space decreases, the previously free lens 400 is gradually clamped, ensuring its fixed position and stability within the device. This reverse rotation mechanism ensures that the lens 400 remains in the correct position during use, preventing loosening or displacement that could affect the performance of the optical system.

[0041] For further information, see Figures 1 to 3 The mounting base 100 includes two main parts: a side panel 110 and a bottom panel 120. The side panel 110 is assembled perpendicular to the bottom panel 120 to ensure the stability and sturdiness of the entire structure. In order to further enhance the stability of the structure, a first supporting short arm 113 and a second supporting short arm 114 are respectively provided near both sides of the side panel 110. These two supporting short arms form a solid support point on both sides of the side panel 110, making the entire mounting base 100 more stable. A motor 130 is provided on the outside of the first supporting short arm 113. The motor 130 is provided to drive the mechanical components connected thereto, namely the lead screw. Ensure that it can effectively drive the components connected thereto while maintaining the balance and stability of the entire mounting base 100.

[0042] For further information, see Figure 3 The base plate 120 is provided with an arc-shaped opening. When supporting the lens 400 or the protective shell 410, the first restraint arm 210 and the second restraint arm 220 respectively clamp most of the lens 400 or the protective shell 410, and the remaining part can be supported in whole or in part by the arc-shaped opening of the base plate 120.

[0043] Furthermore, the ends of the screw rod 240 are hingedly connected to the motor 130 and the inner side of the second support arm 114. The screw rod 240 is a key component connecting the motor 130 and the second support arm 114. Through the hinged design at its ends, the motor 130 can drive the screw rod 240 to rotate, thereby driving the movement of other components connected to the screw rod 240. This arrangement not only ensures the movement of mechanical components, but also improves the flexibility and reliability of the entire mounting base 100.

[0044] In this example, see Figure 1 and Figure 2 A first support arm 243 is provided on the inner side of the first mounting end 241. This setting is intended to enhance the stability and load-bearing capacity of the entire device. Similarly, a second support arm 244 is also provided on the inner side of the second mounting end 242 to ensure that sufficient support force can be provided during use. The two support arms are respectively connected to the first mounting end 241 and the second mounting end 242 in a hinged manner, thereby ensuring that they can flexibly cooperate during movement. The setting of the support arms has a dual function. First, they can significantly improve the rigidity of the screw rod 240, making it less likely to deform or be damaged when subjected to heavy loads or frequent use. Secondly, the support arms can exert a certain driving or squeezing effect on the first constraint arm 210 and the second constraint arm 220 during movement, thereby ensuring that the entire device can remain smooth and stable during operation. Such a setting increases the service life of the device and enhances its adaptability and reliability in the working environment.

[0045] When the motor 130 starts to operate and drives the connected screw 240 to rotate, if the screw 240 rotates in the forward direction, the first support arm 243 and the second support arm 244 will correspondingly move to the sides of the screw 240. At the same time, the first restraint arm 210 and the second restraint arm 220 will also follow this movement and move to the sides of the screw 240. As a result of this movement, the space originally used to install the lens 400 is expanded, making it easier to insert or release the lens 400.

[0046] Conversely, when the motor 130 drives the screw 240 to reverse, that is, when the screw 240 rotates in the opposite direction, the first support arm 243 and the second support arm 244 will move inward of the screw 240. Similarly, the first restraint arm 210 and the second restraint arm 220 will follow this movement and move inward of the screw 240. As a result of this movement, the space originally used to install the lens 400 becomes more compact, thereby allowing the lens 400 to be firmly clamped and ensured to remain stable during use.

[0047] Two slots, specifically designed to mate with the first support arm 243 and the second support arm 244, are provided on the mounting surface of the side panel 110. These slots, namely the first support slot 111 and the second support slot 112, are located at corresponding positions on the side panel 110 to precisely accommodate or position the first support arm 243 and the second support arm 244. The first support arm 243 and the second support arm 244 can be smoothly inserted and installed in their slots.

[0048] See Figure 2 , the first support arm 243 and the second support arm 244 are respectively arranged in the corresponding support grooves, that is, the first support arm 243 is located in the first support groove 111, and the second support arm 244 is located in the second support groove 112. This arrangement enables the support arms to move along the setting direction of the grooves, thereby achieving flexible support and adjustment of the side plate 110. In this way, the first support arm 243 and the second support arm 244 can move in both directions in the first support groove 111 and the second support groove 112 to adapt to the rotation of different screws in different directions. The operator can adjust the positions of the first support arm 243 and the second support arm 244 in the first support groove 111 and the second support groove 112 according to actual needs to achieve the best support effect and installation effect.

[0049] See Figure 1 One end of the first and second restraining arms 210 and 220 is configured as a clamping end 221, each of which exhibits a predetermined curvature. Furthermore, considering that the optical lens 400 being processed is typically circular, the clamping end 221 is designed to be curved to better accommodate the circular lens 400. In most cases, lenses 400 can be roughly categorized into two main types: glass lenses 400 and resin lenses 400. Glass lenses 400 are widely praised for their excellent optical performance and wear resistance, but they are relatively heavy and fragile, requiring extra care during use. Resin lenses 400, on the other hand, are favored for their lightness and strong impact resistance. Resin lenses 400 are lighter and more comfortable to wear, making them particularly suitable for children and sports enthusiasts. Therefore, when processing different types of lenses 400, the decision to install a protective case 410 is typically based on the specific conditions of the lens 400 and the processing requirements. The lens 400 with the protective shell 410 is then clamped for polishing to ensure that the surface smoothness and optical performance of the lens 400 reach the best state.

[0050] Example 2

[0051] See Figure 1 and Figure 4The embodiment of the present utility model provides a polishing constraint mechanism. The difference from embodiment 1 is that, in this embodiment, the constraint mechanism is specially provided with a third constraint arm 230. Generally, the first constraint arm 210 and the second constraint arm 220 clamp the lens 400 to complete the preliminary clamping. For lenses 400 of normal size, this clamping method is sufficient to fix them. However, for those lenses 400 with larger sizes, after they are clamped by the first constraint arm 210 and the second constraint arm 220, an opening will be left in the lens installation space 310 due to the larger size of the lens 400. The existence of this opening may cause the lens 400 to be unstable during the clamping process, and even during the polishing process, the lens 400 may move or fall off, thereby affecting the processing quality and accuracy. In order to solve this problem, the third constraint arm 230 is specially provided in this embodiment. The third restraining arm 230 supports and closes the opening left by the first and second restraining arms 210, 220 in the lens mounting space 310, thereby ensuring that the larger lens 400 remains stable during the clamping and processing process, preventing it from moving or falling off. This effectively improves the stability and safety of the lens 400 during processing, ensuring the quality and precision of the polishing process.

[0052] In this example, see Figure 1 The third restraining arm 230 is secured in place by a support mechanism mounted below the first restraining arm 210 and the second restraining arm 220. Specifically, this support mechanism comprises two main components: a first long support arm 115 and a second long support arm 116, positioned on either side of the side panel 110. These two long support arms correspond in structure and are located on either side of the side panel 110, ensuring the stability and reliability of the entire support mechanism.

[0053] See Figure 1To further enhance the stability of the support mechanism, a crossbeam 117 is provided between the first and second support arms 115, 116. This crossbeam 117 not only connects and secures the two support arms but also provides a sturdy lateral support for the entire support mechanism. This arrangement effectively distributes the weight and forces exerted on the third restraining arm 230, thereby ensuring the stability and durability of the entire device. Furthermore, the third restraining arm 230 is mounted on and can rotate relative to the crossbeam 117. This rotational capability provides greater flexibility and adaptability during use, allowing the third restraining arm 230 to adjust its position and angle as needed, better meeting the requirements of working at different angles. This arrangement not only effectively constrains and secures the target lens 400 but also provides more precise and flexible control during operation.

[0054] See Figure 1 and Figure 4 An angle adjustment mechanism 500 is installed at one end of the third restraining arm 230. This angle adjustment mechanism 500 is hingedly connected to the corresponding portion of the third restraining arm 230, allowing the third restraining arm 230 to flexibly adjust the restraining angle between the third restraining arm 230 and the lens 400. This design allows the operator to easily adjust the angle between the third restraining arm 230 and the lens 400 as needed to achieve the optimal restraining effect.

[0055] Furthermore, to ensure more stable and reliable contact between the third restraining arm 230 and the lens 400, the end of the third restraining arm 230 that contacts the lens 400 is designed to have an elastic structure. This elastic end 231 not only accommodates minor surface deformations of the lens 400 but also, to a certain extent, absorbs and cushions forces caused by external vibrations or impacts. To further enhance the contact effect, a restraining surface 232 is specifically provided on the elastic end 231. This restraining surface 232 is the direct interface with the lens 400. Through this restraining surface 232, the third restraining arm 230 can maintain more stable contact with the lens 400, thereby ensuring that the lens 400 is effectively restrained and fixed in place under various circumstances.

[0056] For further information, see Figure 4The angle adjustment mechanism 500 includes a driving member 510 and a turntable 520 firmly connected to the driving member 510. The turntable 520 realizes its rotation or movement function by being driven by the driving member 510. A column 530 is specially provided at the edge of the turntable 520, and the column 530 is connected to one end of the third constraint arm 230 by a hinge. In this way, when the driving member 510 drives the turntable 520 to rotate or move, the angle of the elastic end 231 of the third constraint arm 230 will also be adjusted accordingly due to the change in the position of the column 530. This design enables the angle adjustment mechanism 500 to flexibly adjust the elastic end 231 of the third constraint arm 230 to adapt to different usage requirements and environmental conditions.

[0057] Example 3

[0058] See Figure 6 The present invention provides a polishing machine comprising the polishing constraint mechanism described in the above embodiment. The polishing machine 600 can be mounted on the mounting base 100 or separately. In this embodiment, the polishing machine 600 is mounted on the mounting base 100. The polishing machine 600 is connected to the side plate 110 of the mounting base 100 via a mounting arm 610. The polishing machine 600 performs the polishing operation by moving the working arm 620 closer to or further away from the lens 400.

[0059] Furthermore, the mounting arm 610 is slidably connected to the side plate 111 of the mounting base 100. Through an existing sliding mechanism, the polishing machine 600 can perform polishing operations based on the side plate 110 approaching or moving away from the lens 400; at this time, the working arm 620 is a fixed length.

[0060] Furthermore, the mounting arm 610 is fixedly connected to the side plate 111 of the mounting seat 110 , and the working arm 620 is a retractable structure, and the polishing operation is performed by moving the working arm 620 closer to or farther away from the lens 400 .

[0061] Furthermore, the mounting arm 610 is slidably connected to the side plate 110 of the mounting base 100, and the working arm 620 is a retractable structure, which can control the polishing machine 600 to approach or move away from the lens 400 for polishing through a variety of adjustment methods.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A polishing constraint mechanism, characterized in that: The invention comprises a mounting seat (100) and a restraining mechanism provided on the mounting seat (100); the restraining mechanism comprises a first restraining arm (210) and a second restraining arm (220); a lens mounting space (310) is formed between the ends of the first restraining arm (210) and the second restraining arm (220); The first restraining arm (210) and the second restraining arm (220) are respectively arranged on both sides of a screw rod (240); the spiral line on the screw rod (240) extends from the middle part to the two ends to form a first mounting end (241) and a second mounting end (242); the spiral lines of the first mounting end (241) and the second mounting end (242) have opposite rotation directions; the first restraining arm (210) and the second restraining arm (220) are respectively hinged to the first mounting end (241) and the second mounting end (242); When the screw rod (240) rotates forward, the lens installation space (310) between the first constraint arm (210) and the second constraint arm (220) increases, and the lens (400) is released; when the screw rod (240) rotates reversely, the lens installation space (310) between the first constraint arm (210) and the second constraint arm (220) decreases, and the lens (400) is clamped.

2. A polishing constraint mechanism according to claim 1, characterized in that: The restraint mechanism further comprises a third restraint arm (230); the third restraint arm (230) is arranged below the first restraint arm (210) and the second restraint arm (220) via a support mechanism provided on the mounting seat (100).

3. A polishing constraint mechanism according to claim 2, characterized in that: The mounting seat (100) comprises a side plate (110) and a bottom plate (120) vertically assembled with the side plate (110); a first supporting short arm (113) and a second supporting short arm (114) are respectively provided near two sides of the side plate (110); a motor (130) is provided on the outer side of the first supporting short arm (113); and two ends of the screw rod (240) are respectively hinged to the inner side of the motor (130) and the second supporting short arm (114).

4. A polishing constraint mechanism according to claim 3, characterized in that: The first mounting end (241) is provided with a first support arm (243) on the inner side of the first constraint arm (210); the second mounting end (242) is provided with a second support arm (244) on the inner side of the second constraint arm (220); the first support arm (243) and the second support arm (244) are hinged to the first mounting end (241) and the second mounting end (242), respectively; When the screw rod (240) rotates forward, the first support arm (243) and the second support arm (244) move toward both sides of the screw rod (240); When the screw rod (240) is reversed, the first support arm (243) and the second support arm (244) move toward the inside of the screw rod (240).

5. A polishing constraint mechanism according to claim 4, characterized in that: The side plate (110) is provided with a first supporting groove (111) and a second supporting groove (112) respectively adapted to the first supporting arm (243) and the second supporting arm (244) on the surface where the bottom plate (120) is installed; the first supporting arm (243) and the second supporting arm (244) are respectively arranged in the first supporting groove (111) and the second supporting groove (112), and move based on the first supporting groove (111) and the second supporting groove (112).

6. A polishing constraint mechanism according to claim 1, characterized in that: One end of the first restraining arm (210) and the second restraining arm (220) is a clamping end (221); the clamping end (221) is arranged in a preset arc.

7. A polishing constraint mechanism according to claim 5, characterized in that: The support mechanism comprises a first support long arm (115) and a second support long arm (116) arranged on both sides of the side plate (110); a crossbeam (117) is provided between the first support long arm (115) and the second support long arm (116).

8. A polishing constraint mechanism according to claim 7, characterized in that: The third restraining arm (230) is arranged on the crossbeam (117) and rotates based on the crossbeam (117).

9. A polishing constraint mechanism according to claim 8, characterized in that: One end of the third restraining arm (230) is provided with an angle adjustment mechanism (500) and is hinged to the angle adjustment mechanism (500); the third restraining arm (230) adjusts the restraining angle with the lens (400) through the angle adjustment mechanism (500).

10. The polishing constraint mechanism according to claim 2, characterized in that: One end of the third constraint arm (230) in contact with the lens (400) is provided as an elastic end (231); the elastic end (231) is provided with a constraint surface (232), and the third constraint arm (230) is in contact with the lens (400) via the constraint surface (232).

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