Crystal center hole machining device

Abstract

The utility model provides a crystal center hole machining device, and relates to the field of crystal machining. The machining device comprises a punching tool, the punching tool comprises a base, a transfer tool and a box clamp, and the base is provided with a positioning hole; one end of the transfer tool is inserted into the positioning hole; the box body clamp is arranged on the peripheral face of the base in a sleeving mode, a through hole and at least two exhaust outlets are formed in the upper surface of the box body clamp, the box body clamp is arranged on the peripheral face of the transfer tool in a sleeving mode through the through hole, the at least two exhaust outlets are formed in the periphery of the transfer tool at intervals, and the exhaust outlets are used for exhausting air outwards so as to reduce pressure in the air channel. Due to the fact that the box body clamp is arranged on the peripheral face of the transfer tool in a sleeving mode through the through hole, the transfer tool is wrapped by the box body clamp, cold air is conveyed to the transfer tool from the periphery of the transfer tool through the air channel, diffusion of the cold air to the peripheral area is reduced, the temperature of the surface of a crystal is reduced, and the hardness of a crystal material is improved; the machining quality of the inner surface of the center hole is improved.

Description

Technical Field

[0001] This utility model relates to the field of crystal processing, and in particular to a crystal center hole processing device. Background Technology

[0002] Lenses with a central hole are mainly used for vision correction in aphakic eyes after cataract extraction in adults. The presence of the central hole provides an outflow channel for aqueous humor in these patients who have had lenses implanted. If glaucoma or persistent high intraocular pressure occurs after surgery, a secondary surgery, including but not limited to laser posterior capsulotomy, can be performed to reduce intraocular pressure.

[0003] The existing processing equipment has a large loss of cold air. The temperature of the air outlet of the freezing gun is -30℃, which blows directly to the bottom of the fixture. Because the fixture is exposed to the air, the cold air temperature spreads to the surroundings. The actual temperature environment for crystal surface processing is -5℃ to -10℃. Since the crystal material itself is relatively soft and does not have enough hardness, directly processing the center hole will cause the inner surface of the center hole to be rough. Utility Model Content

[0004] This invention provides a drilling fixture for a crystal center hole processing device, which solves the problem of rough inner surface of existing crystal center holes.

[0005] This utility model provides a crystal center hole processing device, including a drilling fixture, the drilling fixture comprising:

[0006] The base is provided with positioning holes;

[0007] A transfer fixture, one end of which is inserted into the positioning hole;

[0008] A box-shaped clamp is fitted onto the outer circumferential surface of the base. The upper surface of the box-shaped clamp is provided with a through hole and at least two exhaust ports. The box-shaped clamp is fitted onto the outer circumferential surface of the transfer fixture through the through hole. The at least two exhaust ports are arranged at intervals on the outer circumference of the transfer fixture. The box-shaped clamp is provided with at least two air passages for supplying cold air to the transfer fixture. The outer circumference of the box-shaped clamp is provided with at least two air inlets, which are connected to the exhaust ports one by one through the corresponding air passages.

[0009] According to the crystal center hole processing device provided by this utility model, the upper surface of the box fixture is provided with two exhaust ports, and the exhaust ports are arranged at intervals with the transfer tooling.

[0010] According to the present invention, a crystal center hole processing device is provided, wherein the two exhaust ports are symmetrically arranged about the transfer tooling.

[0011] According to the crystal center hole processing device provided by this utility model, the exhaust port is a circular hole, and the inner diameters of the two exhaust ports are equal.

[0012] According to the present invention, a crystal center hole processing device is provided, wherein the exhaust port is disposed at the edge of the through hole.

[0013] According to the crystal center hole processing device provided by this utility model, the air inlet is provided with a quick connector, which is used to connect to the air supply pipeline.

[0014] According to the present invention, a crystal center hole processing device is provided, wherein the inner diameter of each of the gas channels is equal.

[0015] According to the crystal center hole processing device provided by this utility model, a polishing fixture is also included, the polishing fixture comprising:

[0016] The tooling body has a head at one end, and the outer diameter of the head is smaller than the outer diameter of the tooling body.

[0017] A polishing sleeve is fitted onto the head and is used to polish the central hole.

[0018] According to the crystal center hole processing device provided by this utility model, a slot is provided at one end of the head near the tooling body, and the polishing sleeve is fitted into the slot.

[0019] According to the present invention, in a crystal center hole processing device, the outer diameter of the head near the tooling body is smaller than the outer diameter of the head away from the tooling body.

[0020] The punching fixture provided by this utility model, because the box fixture is sleeved on the outer periphery of the transfer fixture through the through hole, realizes the box fixture to wrap the transfer fixture. Cold air is delivered from the outer periphery of the transfer fixture to the transfer fixture through the exhaust port, reducing the diffusion of cold air to the surrounding area, lowering the temperature of the crystal surface, increasing the hardness of the crystal material, and improving the processing quality of the inner surface of the central hole. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is one of the three-dimensional structural schematic diagrams of the punching fixture provided by this utility model.

[0023] Figure 2 This is one of the side view cross-sectional structural schematic diagrams of the punching fixture provided by this utility model.

[0024] Figure 3 This is the second three-dimensional structural schematic diagram of the punching fixture provided by this utility model.

[0025] Figure 4 This is the second side view sectional structural schematic diagram of the punching fixture provided by this utility model.

[0026] Figure 5 This is a schematic diagram of the main body of the tooling provided in one embodiment of the present invention.

[0027] Figure 6 yes Figure 5 A partially enlarged structural diagram.

[0028] Figure 7 This is a schematic diagram showing the connection relationship between the polishing sleeve and the head according to one embodiment of the present invention.

[0029] Figure 8 This is a schematic diagram of the head structure provided in another embodiment of the present invention.

[0030] Figure 9 This is a schematic diagram showing the connection relationship between the polishing sleeve and the head according to another embodiment of this utility model.

[0031] Figure label:

[0032] 110. Base; 120. Transfer fixture; 130. Box clamp; 140. Exhaust vent; 150. Air duct; 160. Quick connector; 170. Fixture body; 180. Head; 190. Polishing sleeve; 200. Slot. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0034] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of 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 the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0036] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0037] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "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 the present invention. 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0038] like Figure 1 and Figure 2As shown, the crystal center hole processing device includes a drilling fixture, which comprises a base 110, a transfer fixture 120, and a box clamp 130. The base 110 is provided with a positioning hole, and one end of the transfer fixture 120 is inserted into the positioning hole. The box clamp 130 is sleeved on the outer peripheral surface of the base 110. The upper surface of the box clamp 130 is provided with a through hole and at least two exhaust ports 140. The box clamp 130 is sleeved on the outer peripheral surface of the transfer fixture 120 through the through hole. At least two exhaust vents 140 are spaced apart on the outer periphery of the transfer fixture 120. The exhaust vents 140 are used to exhaust air to the outside to reduce the pressure in the air duct and prevent the air duct from bursting. The box clamp 130 is provided with at least two air ducts 150 inside and at least two air inlets are provided on the outer periphery of the box clamp 130. The air ducts 150 are used to supply cold air to the transfer fixture 120. The air inlets are connected to the exhaust vents 140 one by one through the corresponding air ducts 150.

[0039] The punching fixture provided by this utility model, because the box clamp 130 is sleeved on the outer peripheral surface of the transfer fixture 120 through the through hole, realizes the box clamp 130 wrapping the transfer fixture 120. Cold air is delivered from the outer periphery of the transfer fixture 120 to the transfer fixture 120 through the air channel 150, reducing the diffusion of cold air to the surrounding area, lowering the temperature of the crystal surface, increasing the hardness of the crystal material, and improving the processing quality of the inner surface of the central hole.

[0040] In one embodiment of this utility model, such as Figure 2 As shown, the base 110 is used to fix the box clamp 130. The box clamp 130 has an opening at the bottom and is fitted onto the outer circumferential surface of the base 110 through the opening at the bottom. The upper part of the box clamp 130 is a circular plane, and the through hole is located at the center of the circular plane.

[0041] In one embodiment of this utility model, such as Figure 2 As shown, the air duct 150 connects the exhaust port 140 and the air inlet, and is located on the top cover of the housing clamp 130. The number of air ducts 150 is the same as the number of exhaust ports 140, and they are arranged in a one-to-one correspondence with the exhaust ports 140. The air ducts 150 extend radially along the housing clamp 130. Of course, only one air duct 150 and one air inlet can be provided, connecting all the exhaust ports 140 and air inlets together through one air duct 150. In this case, the inner diameter of the air inlet and the inner diameter of the air duct 150 are both larger than the inner diameter of the exhaust port 140.

[0042] In one embodiment of this utility model, the upper surface of the box clamp 130 is provided with two exhaust ports 140, which are arranged at intervals with the transfer fixture 120, and the two exhaust ports 140 are symmetrically arranged about the transfer fixture 120. Specifically, as shown... Figure 1As shown, an exhaust port 140 is provided on the left side of the transfer fixture 120 and an exhaust port 140 is provided on the right side of the transfer fixture 120. The two exhaust ports 140 are on the same straight line passing through the center of the transfer fixture 120, and the distances between the two exhaust ports 140 and the transfer fixture 120 are equal.

[0043] It should be noted that the number of exhaust vents 140 is not limited to two; three, four, or more can also be set, depending on the actual needs.

[0044] In one embodiment of this utility model, such as Figure 1 As shown, the exhaust vent 140 is a circular hole, and the inner diameters of the two exhaust vents 140 are equal. Since the two exhaust vents 140 are symmetrically arranged about the transfer fixture 120, and the inner diameters of the two exhaust vents 140 are equal, the exhaust volume of the two exhaust vents 140 is the same. This makes the cold air blown from the air passage 150 onto the transfer fixture 120 symmetrical and evenly distributed. The cold air blows directly onto the transfer fixture 120, and the transfer fixture 120 is in a low-temperature state, which improves the hardness of the crystal material.

[0045] In one embodiment of this utility model, such as Figure 3 and Figure 4 As shown, there are two exhaust vents 140. The two exhaust vents 140 are the same size and shape. The exhaust vents 140 are located at the edge of the through hole and are semi-circular notches. This creates a gap between the box fixture 130 and the transfer fixture 120. Cold air is discharged directly through the gap and can directly act on the transfer fixture 120, making the temperature of the transfer fixture 120 even lower.

[0046] In one embodiment of this utility model, such as Figure 1 and Figure 2 As shown, the air inlet is equipped with a quick connector 160, which is used to connect to the air supply line. The quick connector 160 is threaded or snap-fit ​​connected to the air inlet. By setting the quick connector 160, the air supply line can be easily connected to the air inlet, which improves the assembly efficiency.

[0047] In one embodiment of this utility model, the inner diameter of each air passage 150 is equal, which makes the flow rate of cold air output from each exhaust port 140 the same, ensuring uniform distribution of cold air and enhancing the cooling effect.

[0048] The following is combined Figures 1 to 2 A specific embodiment of this utility model is described, such as... Figures 1 to 2As shown, the punching fixture includes a base 110, a transfer fixture 120, and a box clamp 130. The base 110 is used to fix the box clamp 130 and is provided with a positioning hole. One end of the transfer fixture 120 is inserted into the positioning hole. The box clamp 130 has an opening at the bottom and is fitted onto the outer circumferential surface of the base 110 through the bottom opening, and onto the outer circumferential surface of the transfer fixture 120 through a through hole. The upper part of the box clamp 130 is a circular plane, and the through hole is located at the center of the circular plane. Two air inlets are provided on the side wall of the box clamp 130, and the two air inlets are arranged symmetrically.

[0049] A ventilation port 140 is located on the left and right sides of the transfer fixture 120. The two ventilation ports 140 are aligned on the same straight line passing through the center of the transfer fixture 120, and the distances from the two ventilation ports 140 to the transfer fixture 120 are equal. The ventilation ports 140 are circular holes with equal inner diameters. An air duct 150 connects the ventilation ports 140 to the air inlets and is located on the top cover of the housing clamp 130. There are two air ducts 150, with each air inlet connected to a corresponding ventilation port 140. The air ducts 150 extend radially along the housing clamp 130. Each air duct 150 has the same inner diameter and length. A quick connector 160 is provided at the air inlet for connection to the air supply line, and the quick connector 160 is threaded into the air inlet.

[0050] Using the existing processing method, the output cold air temperature is -30℃, the crystal surface temperature is only -7℃, the inner surface of the central hole is relatively rough, and the processing quality of the inner surface of the central hole is poor.

[0051] Using the drilling fixture of this embodiment, the output cold air temperature is -30℃, the crystal surface temperature is -18℃, the inner surface of the central hole is relatively smooth, and the processing quality of the inner surface of the central hole is good.

[0052] The following is combined Figures 3 to 4 A specific embodiment of this utility model is described, such as... Figures 3 to 4 As shown, the punching fixture includes a base 110, a transfer fixture 120, and a box clamp 130. The base 110 is used to fix the box clamp 130 and is provided with a positioning hole. One end of the transfer fixture 120 is inserted into the positioning hole. The box clamp 130 has an opening at the bottom and is fitted onto the outer circumferential surface of the base 110 through the bottom opening, and onto the outer circumferential surface of the transfer fixture 120 through a through hole. The upper part of the box clamp 130 is a circular plane, and the through hole is located at the center of the circular plane. Two air inlets are provided on the side wall of the box clamp 130, and the two air inlets are arranged symmetrically.

[0053] A ventilation port 140 is located on the left and right sides of the transfer fixture 120. Both ventilation ports 140 are aligned on the same straight line passing through the center of the transfer fixture 120, and the distances between them and the fixture 120 are equal. The ventilation ports 140 are located at the edge of the through-hole and are semi-circular notches. Air ducts 150 connect the ventilation ports 140 to the air inlets and are located on the top cover of the housing clamp 130. There are two air ducts 150, with each air inlet connected to a corresponding ventilation port 140. The air ducts 150 extend radially along the housing clamp 130. Each air duct 150 has the same inner diameter and length. A quick connector 160 is provided at the air inlet for connection to the air supply line; the quick connector 160 is threaded into the air inlet.

[0054] Using the drilling fixture of this embodiment, the output cold air temperature is -30℃, the crystal surface temperature is -21℃, the inner surface of the central hole is relatively smooth, and the processing quality of the inner surface of the central hole is good.

[0055] In one embodiment of this utility model, such as Figures 5 to 7 As shown, the crystal center hole processing device also includes a polishing fixture, which comprises a fixture body 170 and a polishing sleeve 190. The fixture body 170 is cylindrical, and a head 180 is provided at one end of the fixture body 170. The head 180 is integrally formed with the fixture body 170, and is cylindrical with a circular cross-section. The outer diameter of the head 180 is smaller than the outer diameter of the fixture body 170. The polishing sleeve 190 is fitted onto the head 180 and is used to polish the center hole. The polishing sleeve 190 is made of degreased cotton, polishing cloth, or a nylon wheel, and has a surface roughness of 1000-1600 mesh. In use, the fixture body 170 is fixed on a milling machine, and the milling machine spindle drives the fixture body 170 to rotate. The rotating fixture body 170 drives the polishing sleeve 190 to rotate at high speed, achieving the polishing effect on the center hole.

[0056] In one embodiment of this utility model, a groove 200 is provided at the end of the head 180 near the tooling body 170, and a polishing sleeve 190 is fitted into the groove 200. By fitting the polishing sleeve 190 into the groove 200, the polishing sleeve 190 can be fixed, preventing it from rotating relative to the head 180 during rotation, thus enhancing the polishing effect. Preferably, the diameter of the groove 200 is 0.15~0.3mm, and the width of the groove 200 is 0.5~2mm.

[0057] In one embodiment of this utility model, the outer diameter of the end of the head 180 near the tooling body 170 is smaller than the outer diameter of the end of the head 180 away from the tooling body 170. Specifically, as shown... Figure 8and Figure 9 As shown, the head 180 is a frustum, with a smaller outer diameter at the upper end and a larger outer diameter at the lower end. After the polishing sleeve 190 is fitted onto the head 180, it can be fixed to the head 180 without the need for a retaining groove 200. Preferably, in this embodiment, the angle between the outer circumferential surface of the head 180 and the central axis of the head 180 is 0.5° to 3°. The polishing sleeve 190 is made of degreased cotton, polishing cloth, or a nylon wheel, and its roughness is 1000 mesh to 1600 mesh.

[0058] Using the two aforementioned tooling bodies 170 to polish the center hole, the inner surface quality of the center hole was significantly improved after polishing. Slit lamp inspection revealed a smooth inner surface with no obvious machining marks. Polishing with the cylindrical head 180 was stable and quick; polishing with the conical head 180 required sequential polishing from top to bottom via a pre-programmed sequence, resulting in a longer polishing time. Therefore, the cylindrical head 180 is the preferred choice for polishing.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A crystal center hole processing apparatus comprising a hole drilling tool, characterized by, The punching tool comprises: a base (110) provided with a positioning hole; a transfer tool (120) having one end inserted into the positioning hole; a box clamp (130) sleeved on the outer circumferential surface of the base (110), the upper surface of the box clamp (130) being provided with a through hole and at least two air outlets (140), the box clamp (130) being sleeved on the outer circumferential surface of the transfer tool (120) through the through hole, the at least two air outlets (140) being arranged at intervals on the outer circumferential surface of the transfer tool (120), the inside of the box clamp (130) being provided with at least two air channels (150) for conveying cold air to the transfer tool (120), and the outer circumferential surface of the box clamp (130) being provided with at least two air inlets in one-to-one correspondence with the air outlets (140) through the corresponding air channels (150).

2. The crystal center hole processing apparatus according to claim 1, wherein The upper surface of the box clamp (130) is provided with two air outlets (140) arranged at intervals with the transfer tool (120).

3. The crystal center hole processing apparatus according to claim 2, wherein The two air outlets (140) are symmetrically arranged about the transfer tool (120).

4. The crystal center hole machining apparatus according to claim 1, characterized by The air outlets (140) are circular holes, and the inner diameters of the two air outlets (140) are equal.

5. The crystal center hole machining apparatus according to claim 1, wherein The air outlets (140) are arranged at the edges of the through hole.

6. The crystal center hole processing apparatus according to any one of claims 1 to 5, characterized by The air inlets are provided with quick connectors (160) for connecting with gas conveying pipelines.

7. The crystal center hole processing apparatus according to any one of claims 1 to 5, characterized by The inner diameters of the air channels (150) are equal.

8. The crystal center hole processing apparatus according to any one of claims 1 to 5, characterized by The polishing tool comprises: a tool body (170) having one end provided with a head (180) with an outer diameter smaller than that of the tool body (170); a polishing sleeve (190) sleeved on the head (180) for polishing the central hole.

9. The crystal center hole machining apparatus according to claim 8, wherein The head (180) is provided near one end of the tool body (170) with a clamping groove (200) in which the polishing sleeve (190) is sleeved.

10. The crystal center hole machining apparatus according to claim 8, wherein The outer diameter of the head (180) near one end of the tool body (170) is smaller than that of the head (180) away from one end of the tool body (170).

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