A centering apparatus for an edging machine

Abstract

A centering instrument for an edging machine, comprising a machine body base plate system, a rotating centering system is arranged on the machine body base plate system, the rotating centering system is connected with a damping system, a light source centering system is arranged on one side of the machine body base plate system; the position of the lead seal screw on the damping plate is adjusted to change the tension of the tension spring, the tension spring provides a force to the damping system towards the center of the rotating centering system, so that the rotating centering system is in full contact and friction with the rubber plug in the damping system during the rotation and pressing process, so as to increase the damping and adjust the operation feeling, in addition, the friction contact between the rotating centering system and the damping system can effectively buffer the force generated by the deformation of the main spring under the pressure, and increase the service life of the product.

Description

Technical Field

[0001] This invention relates to the field of edge grinding machine technology, and more particularly to a centering instrument for edge grinding machines. Background Technology

[0002] A centering instrument is a type of instrument used in conjunction with an edging machine to determine the lens processing center and install suction cups, ensuring that the horizontal distance, height, and cylindrical axis of the lens's optical center meet the quality requirements for fitting eyeglasses.

[0003] The existing centering instrument's rotating pressing structure applies a rotational force to the center column during pressing before and after rotation, causing the center column to wobble. At the same time, the scale plate also experiences center offset and a large eccentricity error. In addition, the operator needs to apply a large force to achieve the rotation during positioning, which makes the product feel and provide a poor user experience. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a centering instrument for an edge grinding machine.

[0005] The objective of this invention is achieved through the following technical solution: a centering instrument for an edge grinding machine, comprising a machine base plate system, wherein a rotation centering system is provided on the machine base plate system, the rotation centering system is connected to a damping system, and a light source centering system is provided on one side of the machine base plate system of the rotation centering system.

[0006] Furthermore, the rotation centering system includes a rotation frame centering cylinder, the bottom end of which is connected to a rotation positioning ring. A rotation frame positioning post is provided inside the rotation frame centering cylinder, and multiple oil-impregnated bearings are sleeved on the rotation frame positioning post. A main spring is sleeved on the rotation frame positioning post below the oil-impregnated bearings. A rubber pad is provided on the outside of the main spring. The bottom end of the rotation frame positioning post is fixed to a positioning post fixing frame by rotation frame positioning post fasteners. Multiple first studs are fixed to the bottom end of the positioning post fixing frame, and multiple second studs are fixed to the top end of the positioning post fixing frame. The first studs and second studs are connected.

[0007] Furthermore, a rotating frame positioning cover is provided on the upper side of the rotating positioning ring.

[0008] Furthermore, the rotating positioning ring is equipped with a short positioning post, and the positioning post fixing bracket is equipped with a long positioning post.

[0009] Furthermore, the damping system includes a damping plate fixed to the positioning cover of the rotating frame, and a rubber plug is provided on the damping plate; one side of the damping plate is connected to one end of a tension spring, and the other end of the tension spring is connected to the positioning cover of the rotating frame.

[0010] Furthermore, a T-shaped washer is provided between the damping plate and the positioning cover of the rotating frame; a flat washer is provided between the rubber plug and the damping plate.

[0011] Furthermore, one side of the damping plate is connected to one end of the tension spring via a first lead-sealed screw, and the other end of the tension spring is connected to the rotating frame positioning cover via a second lead-sealed screw. A washer is provided between the second lead-sealed screw and the rotating frame positioning cover.

[0012] Furthermore, the light source centering system includes a lamp box base, a lens support plate inside the lamp box base, a lens spacer on the lower side of the lens support plate, a Fresnel lens on the lower side of the lens spacer, and a lens retaining ring on the lower side of the Fresnel lens; a light shield is provided on the lower side of the lamp box base, a light source base is provided inside the light shield, and a light source is provided inside the light source base.

[0013] Furthermore, the lens support plate is equipped with a lens support column, and the lens support column is provided with a lens support column sleeve.

[0014] Furthermore, the light box holder is connected to the chassis base plate system via a third stud.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] 1. This invention changes the tension of the tension spring by adjusting the position of the lead-seal screw on the damping plate. The tension spring applies a force to the damping system toward the center of the rotating centering system, so that the rotating centering system makes full contact and friction with the rubber plug in the damping system during the rotation and pressing process. This increases the damping and adjusts the operating feel. In addition, the frictional contact between the rotating centering system and the damping system can effectively buffer the force generated by the deformation of the main spring during the pressing process, thereby increasing the service life of the product.

[0017] 2. This invention effectively solves the problem of overall shaking of the central column when the product is rotated and pressed down by installing two long positioning columns on the positioning column fixing frame and setting three slots on the outer circumference of the rotating positioning ring. In addition, by installing two short positioning columns on the rotating positioning ring, the repeatability of product centering is effectively reduced, the error is smaller, and the centering is more accurate.

[0018] 3. The light shield of this invention suppresses the scattering of light from the light source and prevents ambient scattered light from entering the light source centering system, thus avoiding the generation of halos and affecting the centering accuracy of the product. Simultaneously, it employs a Fresnel lens with a unique groove structure, whose special groove structure achieves the focusing effect of a convex lens. Light passing through the Fresnel lens is brighter than light passing through an ordinary lens. By adjusting the position of the LED so that the LED's light-emitting point is located at the lens's focal point, the Fresnel lens, after refracting the scattered light emitted from the light source into parallel light and focusing it, maintains consistent brightness throughout the image, ensuring clear and accurate centering. The use of the Fresnel lens significantly reduces costs and improves the product's brightness and centering accuracy. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present invention;

[0020] Figure 2 This is a schematic diagram of the rotating centering system of the present invention;

[0021] Figure 3 This is a schematic diagram of the damping system of the present invention;

[0022] Figure 4 This is a schematic diagram of the light source centering system of the present invention;

[0023] Figure 5 This is a schematic diagram showing the position of the light shield of the present invention;

[0024] Figure 6 This is a schematic diagram showing the position of the rotating frame positioning cover of the present invention;

[0025] Figure 7 This is a schematic diagram showing the position of the rubber stopper of the present invention. Detailed Implementation

[0026] The present invention will now be further described with reference to the accompanying drawings and embodiments.

[0027] like Figure 1-7 As shown, a centering instrument for an edge grinding machine includes a machine base plate system 400, on which a rotation centering system 100 is provided. The rotation centering system 100 is connected to a damping system 200, and a light source centering system 300 is provided on one side of the machine base plate system 400.

[0028] The rotation centering system 100 includes a rotation frame centering cylinder 101, the bottom end of which is connected to a rotation positioning ring 103. A rotation frame positioning post 105 is provided inside the rotation frame centering cylinder 101. Multiple oil-impregnated bearings 102 are sleeved on the rotation frame positioning post 105, and a main spring 112 is sleeved on the rotation frame positioning post 105 below the oil-impregnated bearings 102. A rubber pad 111 is provided on the outside of the main spring 112. The bottom end of the rotation frame positioning post 105 is fixed to a positioning post fixing frame 107 by a rotation frame positioning post fastener 106. Multiple first studs 109 are fixed to the bottom end of the positioning post fixing frame 107, and multiple second studs 110 are fixed to the top end of the positioning post fixing frame 107. The first studs 109 and second studs 110 are connected. A rotation frame positioning cover 113 is provided on the upper side of the rotation positioning ring 103. The rotating positioning ring 103 is equipped with a short positioning post 104, and the positioning post fixing bracket 107 is equipped with a long positioning post 108.

[0029] The damping system 200 includes a damping plate 201 fixed on the positioning cover 113 of the rotating frame, and a rubber plug 203 is provided on the damping plate 201; one side of the damping plate 201 is connected to one end of the tension spring 208, and the other end of the tension spring 208 is connected to the positioning cover 113 of the rotating frame.

[0030] A T-shaped washer 202 is provided between the damping plate 201 and the rotating frame positioning cover 113; a flat washer 204 is provided between the rubber plug 203 and the damping plate 201. One side of the damping plate 201 is connected to one end of the tension spring 208 through a first lead-sealing screw 205, and the other end of the tension spring 208 is connected to the rotating frame positioning cover 113 through a second lead-sealing screw 206. A washer 207 is provided between the second lead-sealing screw 206 and the rotating frame positioning cover 113.

[0031] It should be noted that the present invention drives the rotating positioning ring 103 to rotate around the rotating positioning post 105 by rotating the centering cylinder 101 of the rotating frame. During the rotation, the heads of the two short positioning posts 104 engage with the limiting holes of the positioning cover 113 of the rotating frame to limit and center the entire rotating centering system, thereby improving the centering accuracy. At the same time, by pressing down the centering cylinder 101 of the rotating frame, the rotating positioning ring 103 is driven to move downward to compress the main spring 112. The force generated by the compression of the main spring 112 provides a mechanical power for the entire structure. When pressed down, the positioning groove on the edge of the rotating positioning ring 103 passes through the two long positioning posts 108. The tight fit between the groove and the two long positioning posts 108 achieves centering and positioning under pressure, eliminating gaps and improving centering accuracy. In addition, when rotating and pressing the rotating frame centering cylinder 101, the tension generated by the tension spring 208 makes the outer wall of the rotating frame centering cylinder 101 fully rub against the head of the rubber plug 203 on the damping plate 201, thereby obtaining resistance during rotation, pressing down and resetting. The existence of resistance plays a buffering and protective role for the entire device, improving the service life of the product.

[0032] The light source centering system 300 includes a lamp holder 304, within which a lens support plate 306 is provided. A lens spacer 309 is located below the lens support plate 306, and a Fresnel lens 310 is located below the lens spacer 309. A lens retaining ring 311 is located below the Fresnel lens 310. A light shield 303 is located below the lamp holder 304, within which a light source holder 301 is located, and a light source 302 is located within the light source holder 301. The light source 302 is an LED point light source. A small-diameter light-transmitting hole is added above the point light source, making the LED's emitting surface approximately a point. Using a point light source ensures that most of the emitted light is refracted by the Fresnel lens 310 into approximately parallel light that directly hits the centering target, improving the product's centering accuracy. The use of a point light source also extends the product's lifespan.

[0033] A Fresnel lens 310 is mounted below the lens spacer 309. The purpose of the lens spacer 309 is to isolate the lens support plate and the Fresnel lens 310. The Fresnel lens 310 has a unique groove structure, which achieves the focusing effect of a convex lens. By adjusting the position of the LED, the LED light-emitting point is located at the focal point of the lens. After the Fresnel lens 310 refracts the scattered light emitted from the light source into parallel light and focuses it for projection, it can maintain consistent brightness throughout the image. The use of the Fresnel lens 310 greatly reduces costs and improves the brightness and centering accuracy of the product. A lens retaining ring 311 is mounted below the Fresnel lens 310. The lens retaining ring 311 is fixed inside the light box base by a locking screw. The lens retaining ring 311 provides a limiting and protective function for the Fresnel lens 310.

[0034] It should be noted that the light shield is made of PP material, which is energy-saving and environmentally friendly, and has excellent mechanical properties and chemical stability. The light shield suppresses the scattering of light from the light source and prevents the surrounding scattered light from entering the light source centering system, thus avoiding the generation of halos and affecting the centering accuracy of the product.

[0035] The lens support plate 306 is equipped with a lens support column 307, and the lens support column 307 is provided with a lens support column sleeve 308. The lamp holder 304 is connected to the camera body base plate system 400 via a third stud 305. It should be noted that the length of the third stud 305 can be adjusted according to different needs to achieve the purpose of adjusting the focal length.

[0036] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications and improvements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be defined by the claims.

Claims

1. A centering instrument for an edge grinding machine, characterized in that, Includes a fuselage base plate system (400), on which a rotation centering system (100) is provided, the rotation centering system (100) is connected to a damping system (200), and a light source centering system (300) is provided on one side of the fuselage base plate system (400); The rotation centering system (100) includes a rotation frame centering cylinder (101), the bottom end of which is connected to a rotation positioning ring (103). A rotation frame positioning column (105) is provided inside the rotation frame centering cylinder (101). Multiple oil-impregnated bearings (102) are sleeved on the rotation frame positioning column (105). A main spring (112) is sleeved on the rotation frame positioning column (105) below the oil-impregnated bearings (102). A rubber pad (111) is provided on the outside of the main spring (112). The bottom end of the rotating frame positioning column (105) is fixed to the positioning column fixing frame (107) by the rotating frame positioning column fastener (106). The bottom end of the positioning column fixing frame (107) is fixed with a plurality of first studs (109), and the top end of the positioning column fixing frame (107) is fixed with a plurality of second studs (110). The first studs (109) and the second studs (110) are connected together. The upper side of the rotating positioning ring (103) is provided with a rotating frame positioning cover (113); The rotating positioning ring (103) is equipped with a short positioning post (104), and the positioning post fixing bracket (107) is equipped with a long positioning post (108). The damping system (200) includes a damping plate (201) fixed on the positioning cover (113) of the rotating frame, and the damping plate (201) is provided with a rubber stopper (203); One side of the damping plate (201) is connected to one end of the tension spring (208), and the other end of the tension spring (208) is connected to the rotating frame positioning cover (113); One side of the damping plate (201) is connected to one end of the tension spring (208) by a first lead-sealing screw (205), and the other end of the tension spring (208) is connected to the rotating frame positioning cover (113) by a second lead-sealing screw (206). A washer (207) is provided between the second lead-sealing screw (206) and the rotating frame positioning cover (113).

2. The centering instrument for an edge grinding machine according to claim 1, characterized in that: A T-shaped washer (202) is provided between the damping plate (201) and the rotating frame positioning cover (113); A flat washer (204) is provided between the rubber stopper (203) and the damping plate (201).

3. The centering instrument for an edge grinding machine according to claim 2, characterized in that: The light source centering system (300) includes a lamp box base (304), a lens support plate (306) is provided inside the lamp box base (304), a lens spacer (309) is provided on the lower side of the lens support plate (306), a Fresnel lens (310) is provided on the lower side of the lens spacer (309), and a lens retaining ring (311) is provided on the lower side of the Fresnel lens (310). The light box holder (304) is provided with a light shield (303) on the lower side, and a light source holder (301) is provided inside the light shield (303), and a light source (302) is provided inside the light source holder (301).

4. The centering instrument for an edge grinding machine according to claim 3, characterized in that: The lens support plate (306) is equipped with a lens support column (307), and the lens support column (307) is provided with a lens support column sleeve (308).

5. The centering instrument for an edge grinding machine according to claim 4, characterized in that: The light box holder (304) is connected to the fuselage base plate system (400) via a third stud (305).

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