Carrying seat and machining table

Abstract

The utility model discloses a carrying seat and a workbench, the carrying seat is used for fixing an artificial lens, and the carrying seat comprises a base, a bearing structure and a centering positioning structure. The bearing structure is arranged on the base, the bearing structure comprises a bearing part and a limiting part, the bearing part is provided with an attaching face, the attaching face is used for being attached to a containing face of the intraocular lens, and the limiting part is arranged on the outer side of the circumferential direction of the bearing part and used for limiting the intraocular lens to move towards the outer side of the circumferential direction of the bearing part; the centering positioning structure is arranged on the base and used for being matched with the locking mechanism and enabling the carrying seat to be centered on the locking mechanism. The loading seat can accurately position the intraocular lens, ensures the stability and the consistency of products in the machining process, and is favorable for improving the machining quality and the production efficiency of the products.

Description

Technical Field

[0001] This utility model relates to the field of workpiece clamping technology, and in particular to a carrier and processing table. Background Technology

[0002] As an ophthalmic medical device, the intraocular lens (IOL) requires extremely high surface precision, necessitating clamping and fixation using a carrier during processing. Traditional carriers, such as vises and clamping blocks, employ relatively crude clamping and positioning methods, failing to accurately position the IOL and hindering the stability and consistency of the product during processing. This severely restricts product quality and production efficiency. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a carrier and processing stage that can accurately position the artificial lens, ensuring the stability and consistency of the product during processing, and thus improving product processing quality and production efficiency.

[0004] In a first aspect, this utility model provides a carrier for fixing an artificial lens, characterized in that it includes a base, a support structure, and a centering positioning structure;

[0005] The support structure is set on the base. The support structure includes a support part and a limiting part. The support part is provided with a contact surface for contacting the placement surface of the artificial lens. The limiting part is set on the circumferential outer side of the support part for restricting the movement of the artificial lens toward the circumferential outer side of the support part.

[0006] A centering positioning structure is set on the base. The centering positioning structure is used to cooperate with the locking mechanism and to center the carrier in the locking mechanism.

[0007] The carrier according to the embodiments of this utility model has at least the following technical effects:

[0008] By providing a contact surface on the support portion for contacting the placement surface of the intraocular lens, the external force applied to the intraocular lens during processing can be transmitted to the support portion and its corresponding contact positions, resulting in more uniform force distribution and preventing deformation or damage to the intraocular lens due to uneven force. Furthermore, by providing a limiting portion on the circumferential outer side of the support portion to restrict the intraocular lens from moving towards the support portion, the intraocular lens can be securely attached to the support portion, preventing movement relative to the support portion during processing. Secondly, by providing a centering positioning structure to center the carrier on the locking mechanism, precise positioning of the carrier and the intraocular lens placed on it can be achieved. Thus, when processing different batches of intraocular lenses on the carrier, all batches can be positioned in the same location by the carrier. Therefore, the carrier of this embodiment can ensure the stability and consistency of the product during processing, which is beneficial to improving product processing quality and production efficiency.

[0009] According to an embodiment of the present invention, the carrier has a central positioning structure including a positioning hole and a supporting surface. The positioning hole is defined in the base, and the supporting surface is disposed in the positioning hole. The distance between the supporting surface and the axis of the positioning hole gradually increases along the direction from the opening of the positioning hole to the bottom wall of the positioning hole. The positioning hole is used for the locking mechanism to extend into, and the supporting surface is used to abut against the locking mechanism along the direction from the bottom wall of the positioning hole to the opening of the positioning hole, so that the carrier is centered and fixed to the locking mechanism.

[0010] According to the embodiments of the present invention, the support surface is arranged around the axis of the positioning hole, and the support surface is a frustum side or a spherical side.

[0011] According to the embodiment of the present utility model, the centering positioning structure further includes a groove, which is recessed into the inner wall of the positioning hole along the radial direction of the positioning hole, and the abutting surface is disposed on the side of the groove near the opening of the positioning hole. The groove is used for the portion of the locking mechanism that abuts against the abutting surface to extend into.

[0012] According to an embodiment of the present invention, the base defines an exhaust hole that penetrates the side wall of the base and communicates with a positioning hole. The exhaust hole is used to discharge air from the positioning hole when the locking mechanism is inserted into the positioning hole.

[0013] According to the embodiment of the present utility model, the contact surface of the carrier includes a contact convex surface and a contact plane, the contact plane surrounds the circumferential outer side of the contact convex surface, and the contact convex surface protrudes relative to the contact plane.

[0014] According to the embodiment of the present invention, the carrier structure defines a discharge groove for discharging the adhesive medium on the carrier part outward.

[0015] According to the embodiment of the present invention, the discharge groove includes at least two sub-grooves, which are evenly distributed along the circumference of the bearing portion, and each sub-grooves extends from the outer circumference of the bearing portion toward the center of the bearing portion.

[0016] According to an embodiment of the present invention, the carrier further includes a rotation limiting structure disposed on the base. The rotation limiting structure is used to cooperate with the locking mechanism to limit the rotation of the carrier relative to the locking mechanism.

[0017] Secondly, this utility model embodiment also provides a processing table, which includes a carrier and a locking mechanism as described above.

[0018] The processing table of this utility model embodiment has the beneficial effect of a carrier, which will not be described in detail here.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0021] Figure 1 This is a schematic diagram of the structure of the carrier according to an embodiment of the present utility model;

[0022] Figure 2 This is a cross-sectional view of the carrier according to an embodiment of the present utility model;

[0023] Figure 3 This is a structural cross-sectional view of the cooperation between the carrier and the locking mechanism in an embodiment of this utility model;

[0024] Figure 4 This is a schematic diagram of the processing table according to an embodiment of the present utility model.

[0025] Figure label:

[0026] Workbench 1000;

[0027] Carrier 100; Base 10; Vent 11; Bearing structure 20; Bearing part 21; Fitting surface 211; Fitting convex surface 2111; Fitting plane 2112; Limiting part 22; Discharge groove 23; Sub-groove 231; Centering positioning structure 30; Positioning hole 31; Supporting surface 32; Groove 33; Rotation limiting structure 40;

[0028] Intraocular lens 200;

[0029] Locking mechanism 300; bushing 310; receiving hole 3101; shaft hole 3102; ball 320; pull rod 330; pushing surface 3301;

[0030] Support base 400. Detailed Implementation

[0031] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0032] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0034] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0035] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] like Figures 1 to 3 As shown, this embodiment of the utility model provides a carrier 100 for fixing an artificial lens 200.

[0037] The carrier 100 includes a base 10, a load-bearing structure 20, and a centering positioning structure 30;

[0038] The support structure 20 is disposed on the base 10. The support structure 20 includes a support part 21 and a limiting part 22. The support part 21 is provided with a contact surface 211, which is used to contact the placement surface of the artificial lens 200. The limiting part 22 is disposed on the circumferential outer side of the support part 21, and the limiting part 22 is used to restrict the artificial lens 200 from moving toward the circumferential outer side of the support part 21.

[0039] A centering positioning structure 30 is disposed on the base 10. The centering positioning structure 30 is used to cooperate with the locking mechanism 300 and to center the carrier 100 on the locking mechanism 300.

[0040] The bonding surface 211 and the placement surface can be bonded and fixed together using an adhesive medium. The adhesive medium can be wax. During the bonding process, solid wax can be melted into liquid wax. After applying liquid wax to the bonding surface 211, the artificial lens 200 is placed on the support part 21, and the placement surface and the bonding surface 211 are made to adhere to each other. After the liquid wax solidifies and fixes, the artificial lens 200 is fixed on the support part 21.

[0041] In this embodiment of the present invention, in a first aspect, by providing a fitting surface 211 on the support portion 21 for fitting with the placement surface of the artificial lens 200, the external force on the artificial lens 200 during processing can be transmitted to the support portion 21 and its corresponding fitting positions, resulting in more uniform force distribution on the product and preventing deformation or damage to the artificial lens 200 due to uneven force distribution. Furthermore, by providing a limiting portion 22 on the circumferential outer side of the support portion 21 to restrict the artificial lens 200 from oriented towards the circumferential outer side of the support portion 21, a limiting portion 22 is provided on the circumferential outer side of the support portion 21. First, by providing a centering positioning structure 30 to center the carrier 100 on the locking mechanism 300, the carrier 100 and the intraocular lens 200 placed on the carrier 100 can be precisely positioned. This ensures that when processing different batches of intraocular lenses 200 on the carrier 100, all batches can be positioned in the same location by the carrier 100. Therefore, the carrier 100 of this embodiment can ensure the stability and consistency of the product during processing, which is beneficial to improving product processing quality and production efficiency.

[0042] like Figure 2 and Figure 3As shown, in some embodiments, the centering positioning structure 30 includes a positioning hole 31 and a supporting surface 32. The positioning hole 31 is defined in the base 10, and the supporting surface 32 is disposed in the positioning hole 31. Along the direction from the opening of the positioning hole 31 to the bottom wall of the positioning hole 31, the distance between the supporting surface 32 and the axis of the positioning hole 31 gradually increases. The positioning hole 31 is used for the locking mechanism 300 to extend into, and the supporting surface 32 is used to abut against the locking mechanism 300 along the direction from the bottom wall of the positioning hole 31 to the opening of the positioning hole 31, so that the carrier 100 is centered and fixed to the locking mechanism 300. With the above configuration, when the abutting surface 32 and the locking mechanism 300 abut against each other along the bottom wall of the positioning hole 31 pointing towards the opening of the positioning hole 31, the locking mechanism 300 can generate an axial force on the abutting surface 32. Furthermore, because the distance between the abutting surface 32 and the axis of the positioning hole 31 gradually increases, this axial force can generate a radial pushing force on the abutting surface 32 along the positioning hole 31, or a pair of pushing forces symmetrically distributed about the axis of the positioning hole 31, or three or more forces centered on the axis of the positioning hole 31. The circumferentially spaced pushing force forces the carrier 100 to be centered within the locking mechanism 300, thereby achieving precise positioning of the carrier 100 and the intraocular lens 200 placed on it. Simultaneously, the axial and radial forces generated by the locking mechanism 300 on the abutment surface 32 respectively limit the axial and radial movement of the carrier 100 relative to the locking mechanism 300 along the positioning hole 31, thus fixing the carrier 100 to the locking mechanism 300. In other words, through the cooperation of the abutment surface 32 and the locking mechanism 300, the carrier 100 is both centered and fixed.

[0043] The base 10 is cylindrical, and the positioning hole 31 is a blind hole.

[0044] Optionally, the axis of the base 10 and the axis of the positioning hole 31 are coaxially arranged.

[0045] In some embodiments, the abutment surface 32 is arranged around the axis of the positioning hole 31, such that the abutment surface 32 has a closed-loop surface structure, and the abutment surface 32 is a frustum side or a spherical side.

[0046] In some other embodiments, the abutment surface 32 may also be provided separately. For example, the abutment surface 32 includes two sub-abutment surfaces, which are symmetrically distributed about the axis of the positioning hole 31. In this way, when the locking mechanism 300 abuts against the two sub-abutment surfaces respectively, a pair of pushing forces symmetrically distributed about the axis of the positioning hole 31 can be generated to force the carrier 100 to be centered relative to the locking mechanism 300.

[0047] like Figure 2 and Figure 3 As shown, in some embodiments, the centering positioning structure 30 further includes a groove 33. The groove 33 is recessed into the inner wall of the positioning hole 31 along the radial direction of the positioning hole 31. The abutting surface 32 is disposed on the side of the groove 33 near the opening of the positioning hole 31. The groove 33 is used for the portion of the locking mechanism 300 that abuts against the abutting surface 32 to extend into. In this way, the groove 33 can avoid the portion of the locking mechanism 300 that abuts against the abutting surface 32, thus preventing the inner wall of the positioning hole 31 from interfering with the portion of the locking mechanism 300 that abuts against the abutting surface 32, thereby ensuring the normal centering fit between the carrier 100 and the locking mechanism 300.

[0048] In some embodiments, the gap between the inner wall of the positioning hole 31 and the outer wall of the portion of the locking mechanism 300 extending into the positioning hole 31 is 0.005 mm to 0.01 mm. By setting this gap parameter, the positioning accuracy between the carrier 100 and the locking mechanism 300 can be significantly improved, achieving high-precision clamping and positioning, meeting the high-precision requirements of intraocular lens processing, effectively reducing processing errors on the intraocular lens 200 on the carrier 100, and ensuring processing quality.

[0049] Understandably, when the gap between the inner wall of the positioning hole 31 and the outer wall of the locking mechanism 300 is too small, during the process of the locking mechanism 300 being inserted into the positioning hole 31, the air cannot escape quickly in the small gap. As a result, the locking mechanism 300 will compress the air in the positioning hole 31, causing a gradually increasing high-pressure area to form in the positioning hole 31. This high-pressure area will generate a reaction force on the locking mechanism 300, hindering the locking mechanism 300 from continuing to advance.

[0050] like Figure 2 and Figure 3 As shown, in some embodiments, the base 10 defines an exhaust port 11 that penetrates the sidewall of the base 10 and communicates with the positioning hole 31. The exhaust port 11 is used to discharge the air in the positioning hole 31 when the locking mechanism 300 is inserted into the positioning hole 31, so as to avoid the locking mechanism 300 compressing the air in the positioning hole 31 during the process of penetrating the positioning hole 31 and forming a high-pressure area, so that the locking mechanism 300 can be easily inserted into the positioning hole 31.

[0051] Typically, the placement surface of the intraocular lens 200 to be processed is concave in the middle and flat around the perimeter.

[0052] like Figure 1 and Figure 2As shown, in order to adapt to the shape of the placement surface of the intraocular lens 200, in some embodiments, the fitting surface 211 includes a fitting convex surface 2111 and a fitting plane 2112. The fitting plane 2112 surrounds the circumferential outer side of the fitting convex surface 2111, and the fitting convex surface 2111 protrudes relative to the fitting plane 2112. In this way, the fitting convex surface 2111 can fit with the central recessed portion of the placement surface, and the fitting plane 2112 can fit with the peripheral flush portion of the placement surface, which is beneficial to the tight and stable fit between the fitting surface 211 and the placement surface.

[0053] The specific shape of the conforming convex surface 2111 can be designed according to the shape of the central concave part of the artificial lens 200.

[0054] In some embodiments, the limiting portion 22 is disposed on the circumferential outer side of the mating plane 2112, the limiting portion 22 extends circumferentially along the mating plane 2112, the limiting portion 22 protrudes relative to the mating plane 2112, and the limiting portion 22 and the mating convex surface 2111 together define a placement groove for accommodating the periphery of the artificial lens 200.

[0055] In some embodiments, the limiting part 22 is spaced apart from the artificial lens 200. During use, the gap between the limiting part 22 and the artificial lens 200 is filled by an adhesive medium. After the adhesive medium is cured, the circumferential outer side of the artificial lens 200 indirectly abuts against the limiting part 22 through the cured adhesive medium, thereby restricting the movement of the artificial lens 200 toward the limiting part 22.

[0056] In other embodiments, the limiting portion 22 directly abuts against the circumferential outer side of the artificial lens 200 to restrict the movement of the artificial lens 200 toward the limiting portion 22.

[0057] like Figure 1 As shown, in some embodiments, the support structure 20 defines a discharge groove 23 for discharging adhesive medium on the support portion 21 outward. This allows excess adhesive medium between the support portion 21 and the artificial lens 200 to be discharged outward, preventing the bonding surface 211 and the placement surface from not being able to fit tightly together.

[0058] In some embodiments, the discharge groove 23 includes at least two sub-grooves 231, which are evenly distributed around the circumference of the support portion 21, and each sub-groove 231 extends from the outer circumference of the support portion 21 toward the center of the support portion 21. Thus, when the artificial lens 200 is placed on the discharge groove 23, the adhesive medium filled in each sub-groove 231 can be bonded and fixed to the artificial lens 200, thereby improving the rigidity of the artificial lens 200 during processing and making the processing conditions of the artificial lens 200 more stable.

[0059] like Figure 1As shown, in some embodiments, the carrier 100 further includes a rotation limiting structure 40, which is disposed on the base 10 and is used to cooperate with the locking mechanism 300 to limit the rotation of the carrier 100 relative to the locking mechanism 300. Through the above arrangement, the carrier 100 can be further fixed, preventing rotation during processing and further ensuring the stability and consistency of the product during processing.

[0060] In some embodiments, the rotation limiting structure 40 includes a positioning groove for engaging with a positioning protrusion of the locking mechanism 300; or, the rotation limiting structure 40 includes a positioning protrusion for engaging with a positioning groove of the locking mechanism 300.

[0061] like Figure 4 As shown, in a second aspect, the present invention also provides a processing table 1000, which includes a carrier 100 as described in any of the above embodiments and a locking mechanism 300.

[0062] like Figure 3 As shown, in some embodiments, the locking mechanism 300 may be a ball lock mechanism.

[0063] Specifically, the locking mechanism 300 includes a bushing 310, a ball 320, and a pull rod 330. The bushing 310 defines a receiving hole 3101 and a shaft hole 3102. The ball 320 is received in the receiving hole 3101. The pull rod 330 is movably disposed in the shaft hole 3102. The pull rod 330 is provided with a pushing surface 3301. The pull rod 330 can move along the axis of the shaft hole 3102 so that the pushing surface 3301 approaches or moves away from the ball 320. When the pull rod 330 moves along the axis of the shaft hole 3102 and causes the pushing surface 3301 to move close to the ball 320, the pushing surface 3301 can push the ball 320 radially along the shaft hole 3102, so that the ball 320 extends out of the receiving hole 3101 and abuts against the holding surface 32, thereby achieving the centering positioning of the carrier 100 and fixing the carrier 100 to the locking mechanism 300; when the pull rod 330 moves along the axis of the shaft hole 3102 and causes the pushing surface 3301 to move away from the ball 320, the ball 320 can get rid of the pushing surface 3301 and reset, thereby releasing the centering positioning and fixing of the carrier 100.

[0064] The push surface 3301 is arranged on the outer wall of the pull rod around the axis of the pull rod 330, so that the push surface 3301 has a closed-loop surface structure, and the push surface 3301 is a frustum side or a table side.

[0065] Optionally, the axis of the bushing 310 and the axis of the tie rod 330 are coaxial.

[0066] In some embodiments, the number of balls 320 is two, and the two balls 320 are symmetrically distributed on the bushing 310 with the axis of the shaft hole 3102 as the center, so that the two balls 320 can generate a pair of pushing forces symmetrically distributed about the axis of the positioning hole 31 on the bearing surface 32. Alternatively, the number of balls 320 is three or more, and each ball 320 is evenly distributed circumferentially on the bushing 310 with the axis of the shaft hole 3102 as the center, so that each ball 320 can generate three or more pushing forces spaced apart circumferentially with the axis of the positioning hole 31 as the center on the bearing surface 32.

[0067] The bushing 310 is provided with receiving holes corresponding to each ball 320.

[0068] The portion of the locking mechanism 300 that abuts against the bearing surface 32 is the ball bearing 320; the outer wall of the portion of the locking mechanism 300 that extends into the positioning hole 31 is the outer wall of the bushing 310.

[0069] In some embodiments, the processing table 1000 further includes a support base 400, on which a plurality of carriers 100 and a plurality of locking mechanisms 300 are provided. One carrier 100 is connected to one locking mechanism 300. In this way, multiple intraocular lenses on carriers 100 can be processed simultaneously in the same processing table 1000, which is beneficial to improving production efficiency.

[0070] Within the scope of knowledge possessed by those skilled in the art, various modifications can be made without departing from the spirit of this utility model. Furthermore, embodiments of this utility model and features thereof can be combined with each other, unless otherwise specified.

Claims

1. A carrier for securing an intraocular lens, comprising: The base, the bearing structure and the centering structure are provided. The bearing structure is arranged on the base, and comprises a bearing part and a limiting part. The centering structure is arranged on the base, and is used for cooperating with the locking mechanism and centering the carrier seat in the locking mechanism.

2. The carrier of claim 1, wherein The centering structure comprises a positioning hole and an abutting surface.

3. The carrier of claim 2, wherein, The abutting surface is arranged in the positioning hole and gradually increases in distance from the axis of the positioning hole.

4. The carrier of claim 2, wherein, The abutting surface is arranged around the axis of the positioning hole and is in the form of a conical side surface or a spherical side surface.

5. The carrier of claim 2, wherein, The centering structure further comprises a groove arranged on the inner wall of the positioning hole along the radial direction of the positioning hole.

6. The carrier of claim 1, wherein The base defines an exhaust hole penetrating the side wall of the base and communicating with the positioning hole.

7. The carrier of claim 1, wherein The abutting surface comprises an abutting convex surface and an abutting flat surface.

8. The carrier of claim 7, wherein, The bearing structure defines a discharge groove for discharging the adhesive medium on the bearing part outward.

9. The carrier of claim 1, wherein, The discharge groove comprises at least two sub-grooves uniformly distributed along the circumference of the bearing part.

10. A processing station characterized by, The carrier seat further comprises a rotation limiting structure arranged on the base and used for cooperating with the locking mechanism to limit the rotation of the carrier seat relative to the locking mechanism. The carrier seat and the locking mechanism are provided.

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