Lens mold clamping device with positioning and diameter measuring functions

Abstract

The utility model relates to a lens mold clamping device with positioning and diameter measurement functions, which comprises a manipulator, a positioning device and a diameter measurement device, a lens mold is arranged in the lens mold placing jig; the positioning and measuring mechanism is used for positioning the lens mold in the lens mold placing jig and measuring the diameter of the lens mold; the positioning measuring mechanism comprises a lifting driving assembly, a positioning supporting frame, an electric clamping jaw and two symmetrically-arranged clamping jaw grippers, the positioning supporting frame is connected with the lifting driving assembly, the electric clamping jaw is arranged on the positioning supporting frame, and the two symmetrically-arranged clamping jaw grippers are connected with the electric clamping jaw. The electric clamping jaw drives the two symmetrically-arranged clamping jaw grippers to be opened or closed. According to the lens mold clamping device with the positioning and diameter measuring functions, controllable positioning of the clamping force of the lens is achieved through the integrated design of the electric clamping jaws, the diameter of the lens can be measured at the same time, and lens production equipment can conveniently position and measure lenses of different sizes.

Description

TECHNICAL FIELD

[0001] The utility model relates to a lens production technical field especially a lens mould clamping device with positioning and diameter measurement. BACKGROUND

[0002] The spectacle lens processing industry, especially resin spectacle lenses, can be divided into two types: resin injection lenses and resin injection molding lenses. Currently, the market produces lenses by using the injection method to obtain resin injection lenses. With the gradual expansion of the resin lens market and the diversification of consumer requirements, the performance, process, and equipment of resin injection lenses are constantly improving and perfecting.

[0003] In the production process of resin injection lenses, two half-molds are first bonded together, then liquid resin is injected between the two molds, and after sealing, it is placed in an oven for curing. After curing, the lens between the two molds needs to be removed, and the final lens is obtained. In this process, the lens needs to be removed from between the two molds, i.e., the two molds and the lens need to be separated, which is called mold opening. Mold opening is to open the two molds to remove the lens that has been cured in the middle.

[0004] In the process of opening the lens mold, the existing production method has the following problems:

[0005] 1. The current lens positioning method uses a clamping cylinder, which cannot achieve precise positioning of the spectacle lens, and the positioning force cannot be adjusted, which can easily damage the lens.

[0006] 2. The measurement of the lens diameter is measured manually or by using a displacement sensor, which cannot achieve simultaneous positioning and measurement. UTILITY MODEL CONTENT

[0007] Therefore, the technical problem to be solved by the utility model is to solve the problem of being unable to position and measure the diameter of the lens mold in the existing lens production equipment.

[0008] To solve the above technical problems, the utility model provides a kind of lens mold clamping device with positioning and diameter measurement, comprising: manipulator, it is used for the adsorption of lens mold;Lens mold placement fixture is connected with manipulator, and lens mold placement fixture is equipped with lens mold in it;Positioning measurement mechanism is located below lens mold placement fixture, and the positioning measurement mechanism is used to position and diameter measurement for the lens mold in lens mold placement fixture;The positioning measurement mechanism includes lifting drive assembly, positioning support frame, electric clamp jaw and two symmetrically arranged clamping hand, the positioning support frame is connected with lifting drive assembly, the electric clamp jaw is arranged on positioning support frame, the two symmetrically arranged clamping hand is connected with electric clamp jaw, and the electric clamp jaw drives two symmetrically arranged clamping hand to open or close.The lens mold clamping device with positioning and diameter measurement of the utility model realizes the positioning of controllable lens clamping force by the integrated design of electric clamp jaw, and lens diameter can be measured simultaneously, and it is convenient for lens production equipment to position and measure different size lenses.

[0009] In an embodiment of the utility model, the two symmetrically arranged positioning rods are connected on the clamping hand, and the electric clamp jaw drives two symmetrically arranged clamping hand to close to realize that positioning rod is in contact with lens mold positioning.

[0010] In an embodiment of the utility model, the upper end surface of positioning support frame is equipped with positioning mounting plate, the positioning mounting plate is equipped with mold support block, and lifting drive assembly drives mold support block to move up to realize that it is in contact with the lens mold in lens mold placement fixture.

[0011] In an embodiment of the utility model, the lifting drive assembly includes lifting mounting seat, lifting drive motor, screw mounting seat, lifting drive screw and lifting plate, lifting drive motor and screw mounting seat are all arranged on lifting mounting seat, lifting drive screw is arranged on screw mounting seat, lifting drive motor is connected with lifting drive screw, and lifting plate is fixedly connected with screw nut on lifting drive screw.

[0012] In an embodiment of the utility model, the linear guide rail is equipped on lifting mounting seat, the linear sliding block is equipped on lifting plate, and the linear sliding block and linear guide rail are slidably connected.

[0013] In an embodiment of the utility model, the lens mold placement fixture includes right-angle connecting plate, side plate one, two symmetric side plate two and bottom plate, the upper end of right-angle connecting plate is connected with manipulator, the lower end of right-angle connecting plate is fixedly connected with side plate one, side plate one and two symmetric side plate two are connected with three adjacent sides of bottom plate respectively, the lens mold is placed on bottom plate, and the lens mold is located in the range surrounded by side plate one and two symmetric side plate two.

[0014] In one embodiment of the utility model, bottom plate is equipped with through -hole one and through -hole two, the end that side board two and bottom plate meet is equipped with through -hole three, through -hole two and through -hole three communicate.

[0015] In one embodiment of the utility model, the mechanical hand includes mechanical hand mounting seat, clamping drive cylinder, mechanical hand lifting plate, mold suction nozzle, ball spline and rotary drive assembly, the clamping drive cylinder is fixedly arranged on mechanical hand mounting seat, and the piston rod of clamping drive cylinder is connected with mechanical hand lifting plate, the rotary drive assembly is installed on mechanical hand mounting seat, and the outer wall of the middle position of ball spline axis direction is connected with the rotary drive assembly, the upper end of ball spline is connected with mechanical hand lifting plate, and the lower end of ball spline is connected with mold suction nozzle.

[0016] In one embodiment of the utility model, the rotary drive assembly includes rotary drive motor, driving wheel, driven wheel, belt and rotary support seat, the rotary support seat is fixedly connected with mechanical hand mounting seat, the rotary drive motor, driving wheel and driven wheel are all arranged on rotary support seat, the rotary shaft of rotary drive motor is connected with driving wheel, driving wheel is connected with driven wheel through belt, and the driven wheel is connected with ball spline.

[0017] In one embodiment of the utility model, the lower end of ball spline is equipped with limit ring, and buffer spring is arranged between limit ring and rotary support seat.

[0018] The above technical scheme of the utility model has the following advantages compared with prior art:

[0019] The lens mold clamping device with positioning and diameter measurement functions disclosed by the utility model places the lens mold on the lens mold placing jig after the lens mold is adsorbed by the mechanical hand, at this time, the electric clamping jaw is in an open state, when the electric clamping jaw is closed to drive the positioning rod to move inward, the lens mold is positioned, the clamping force of the lens mold can be set, the moving distance of the left and right grippers of the electric clamping jaw is calculated to obtain the diameter parameter of the positioned lens, compared with prior art, the device can be used in the industry that needs to position and measure lenses, such as lens production and manufacturing, the positioning and measurement accuracy is improved, the clamping force is controllable, and the defective rate of lens products in the production process is reduced. ACCURACY

[0020] In order to make the content of the utility model more easily understood clearly, the utility model is further explained in detail below according to specific embodiments of the utility model and in conjunction with the drawings, wherein

[0021] Figure 1It is the structure schematic view of the lens mold clamping device with positioning and diameter measurement of the utility model;

[0022] Figure 2 It is the structure schematic of the positioning measurement mechanism of the utility model Figure One ;

[0023] Figure 3 It is the structure schematic of the positioning measurement mechanism of the utility model Figure Two ;

[0024] Figure 4 It is the structure schematic view of the lens mold placing jig of the utility model;

[0025] Figure 5 It is the structure schematic of the manipulator of the utility model Figure One ;

[0026] Figure 6 It is the structure schematic of the manipulator of the utility model Figure Two .

[0027] Description of the drawings of the specification: manipulator 201, lens mold placing jig 202, positioning measurement mechanism 203, lifting drive assembly 204, positioning support frame 205, electric clamping jaw 206, clamping jaw gripper 207, positioning rod 208, positioning mounting plate 209, mold support block 210, lifting mounting seat 211, lifting drive motor 212, screw mounting seat 213, lifting drive screw 214, lifting plate 215, linear guide rail 216, linear sliding block 217, circular recess 218, right-angle connecting plate 219, side plate one 220, side plate two 221, bottom plate 222, rectangular through hole 223, through hole one 224, through hole two 225, through hole three 226, manipulator mounting seat 227, clamping drive cylinder 228, manipulator lifting plate 229, mold suction nozzle 230, ball spline 231, rotary drive assembly 232, guide slide rail 234, guide sliding block 235, rotary drive motor 236, driving wheel 237, driven wheel 238, belt 239, rotary support seat 240, limit ring 241, detection camera 243. DETAILED DESCRIPTION

[0028] The utility model will be further explained in combination with the drawings and specific embodiment, so that the person skilled in the art can better understand the utility model and can be implemented, but the embodiment is not as the limitation of the utility model.

[0029] Reference Figure 1As shown, the lens mold clamping device with positioning and diameter measurement function comprises: a mechanical hand 201 for adsorbing the lens mold; a lens mold placing jig 202 connected with the mechanical hand 201, and the lens mold placing jig 202 is internally provided with a lens mold; a positioning and measuring mechanism 203 located below the lens mold placing jig 202, and the positioning and measuring mechanism 203 is used for positioning and diameter measurement of the lens mold in the lens mold placing jig 202.

[0030] Referring to Figure 2 , 3 As shown, the positioning and measuring mechanism 203 comprises a lifting driving assembly 204, a positioning support frame 205, an electric clamping jaw 206 and two symmetrically arranged clamping jaw grippers 207, the positioning support frame 205 is connected with the lifting driving assembly 204, the electric clamping jaw 206 is arranged on the positioning support frame 205, the two symmetrically arranged clamping jaw grippers 207 are connected with the electric clamping jaw 206, and the electric clamping jaw 206 drives the two symmetrically arranged clamping jaw grippers 207 to open or close.

[0031] In the above structure, the clamping jaw gripper 207 is connected with two symmetrically arranged positioning rods 208, and the electric clamping jaw 206 drives the two symmetrically arranged clamping jaw grippers 207 to close to realize the positioning of the positioning rod 208 in contact with the lens mold. The positioning rod 208 is a cylindrical rod. Since the two symmetrically arranged clamping jaw grippers 207 are arranged, and the two symmetrically arranged positioning rods 208 are connected on the clamping jaw gripper 207, there are four positioning rods 208 in total, and the four positioning rods 208 are located at the four corner positions of the rectangular cross section. The lens mold is located in the cross section range of the four positioning rods 208, and the four positioning rods 208 can be close to the lens mold and contact the outer wall of the lens mold under the driving contraction of the electric clamping jaw 206, so as to measure the diameter of the lens mold. The lens mold 400 is a hamburger-shaped structure with three layers stacked together, and the radial cross section of the lens mold 400 is circular, and the axis direction of the positioning rod 208 is perpendicular to the radial cross section of the lens mold 400.

[0032] In the structure, the upper end surface of the positioning support frame 205 is provided with a positioning mounting plate 209, the positioning mounting plate 209 is provided with a mold support block 210, and the lifting driving assembly 204 drives the mold support block 210 to move upward to realize contact with the lens mold in the lens mold placing jig 202. The positioning mounting plate 209 is a U-shaped plate, and the positioning mounting plate 209 is located between the two symmetrically arranged clamping jaw grippers 207. After the lens mold is lifted from the lens mold placing jig 202 by the lifting driving assembly 204, the diameter of the lens mold is measured by the four positioning rods 208. The end surface of the mold support block 210 in contact with the lens mold is provided with a circular groove 218, which is used to reduce the viscous resistance between the lens mold and the mold support block 210.

[0033] Referring to Figure 3 As shown, the lifting driving assembly 204 includes a lifting mounting seat 211, a lifting driving motor 212, a screw mounting seat 213, a lifting driving screw 214 and a lifting plate 215. The lifting driving motor 212 and the screw mounting seat 213 are arranged on the lifting mounting seat 211, the lifting driving screw 214 is arranged on the screw mounting seat 213, the lifting driving motor 212 and the lifting driving screw 214 are connected, and the lifting plate 215 and the screw nut on the lifting driving screw 214 are fixedly connected. The lifting mounting seat 211 is provided with a linear guide rail 216, the lifting plate 215 is provided with a linear sliding block 217, and the linear sliding block 217 and the linear guide rail 216 are slidingly connected.

[0034] Referring to Figure 4As shown, the lens mold placement jig 202 includes a right-angle connecting plate 219, a side plate one 220, two symmetrical side plates two 221, and a bottom plate 222. The upper end of the right-angle connecting plate 219 is connected with the manipulator 201, and the lower end of the right-angle connecting plate 219 is fixedly connected with the side plate one 220. The side plate one 220 and the two symmetrical side plates two 221 are respectively connected with three adjacent sides of the bottom plate 222. The lens mold is placed on the bottom plate 222, and the lens mold is located within the range surrounded by the side plate one 220 and the two symmetrical side plates two 221. The side plate one 220 and the two symmetrical side plates two 221 are vertically arranged with the bottom plate 222. A rectangular through hole 223 is arranged on the side plate one 220. A through hole one 224 and a through hole two 225 are arranged on the bottom plate 222. The end portion of the side plate two 221 connected with the bottom plate 222 is provided with a through hole three 226, and the through hole two 225 is in communication with the through hole three 226. The through hole one 224 is arranged opposite to the mold support block 210, and the sectional area of the through hole one 224 is greater than that of the mold support block 210. The mold support block 210 can pass through the through hole one 224 to contact the lens mold. The four positioning rods 208 can pass through the through hole two 225 and the through hole three 226 to enter the range surrounded by the side plate one 220 and the two symmetrical side plates two 221 to measure the lens mold under the driving of the electric clamping jaw 206. The material of the mold support block 210 is preferably bakelite, which can provide good support effect.

[0035] Referring to Figure 5 , 6 As shown, the manipulator 201 includes a manipulator mounting seat 227, a clamping driving cylinder 228, a manipulator lifting plate 229, a mold suction nozzle 230, a ball spline 231, and a rotary driving assembly 232. The clamping driving cylinder 228 is fixedly arranged on the manipulator mounting seat 227, and the piston rod of the clamping driving cylinder 228 is connected with the manipulator lifting plate 229. The rotary driving assembly 232 is installed on the manipulator mounting seat 227, and the rotary driving assembly 232 is connected with the outer wall of the middle position of the axis direction of the ball spline 231. The upper end of the ball spline 231 is connected with the manipulator lifting plate 229, and the lower end of the ball spline 231 is connected with the mold suction nozzle 230. The manipulator mounting seat 227 is provided with a guide sliding rail 234, and the manipulator lifting plate 229 is provided with a guide sliding block 235. The guide sliding block 235 and the guide sliding rail 234 are in sliding connection.

[0036] In the structure, the rotating driving assembly 232 comprises a rotating driving motor 236, a driving wheel 237, a driven wheel 238, a belt 239 and a rotating support base 240, the rotating support base 240 is fixedly connected with the manipulator mounting base 227, the rotating driving motor 236, the driving wheel 237 and the driven wheel 238 are arranged on the rotating support base 240, the rotating shaft of the rotating driving motor 236 is connected with the driving wheel 237, the driving wheel 237 is connected with the driven wheel 238 through the belt 239, and the driven wheel 238 is connected with the ball spline 231.

[0037] In the structure, the lower end of the ball spline 231 is provided with a limiting ring 241, and a buffer spring is arranged between the limiting ring 241 and the rotating support base 240. The rotating driving assembly 232 drives the ball spline 231 to rotate, so as to drive the lens mold adsorbed by the mold suction nozzle 230 to rotate. The rotating support base 240 is provided with a detection camera 243, which is used for detecting the gap between the mold and the lens.

[0038] Obviously, the above embodiments are only examples for clearly illustrating the present application, and are not intended to limit the embodiments. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the embodiments cannot be exhausted, and the obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A lens mold clamping device with positioning and diameter measurement, characterized in that, include: A robotic arm used for adsorbing lens molds; A lens mold placement fixture is connected to a robotic arm, and a lens mold is disposed inside the lens mold placement fixture; A positioning and measuring mechanism is located below the lens mold placement fixture. The positioning and measuring mechanism is used to position and measure the diameter of the lens mold within the lens mold placement fixture. The positioning and measuring mechanism includes a lifting drive assembly, a positioning support frame, an electric gripper, and two symmetrically arranged gripper handles. The positioning support frame is connected to the lifting drive assembly, the electric gripper is mounted on the positioning support frame, and the two symmetrically arranged gripper handles are connected to the electric gripper. The electric gripper drives the two symmetrically arranged gripper handles to open or close.

2. The lens mold clamping device with positioning and diameter measurement according to claim 1, characterized in that: The gripper is connected to two symmetrically arranged positioning rods. When the electric gripper drives the two symmetrically arranged gripper to close, it is used to make the positioning rods contact and position the lens mold.

3. The lens mold clamping device with positioning and diameter measurement according to claim 2, characterized in that: The upper surface of the positioning support frame is provided with a positioning mounting plate, and the positioning mounting plate is provided with a mold support block. The lifting drive component drives the mold support block to move upward to make contact with the lens mold in the lens mold placement fixture.

4. The lens mold clamping device with positioning and diameter measurement according to claim 1, characterized in that: The lifting drive assembly includes a lifting mounting base, a lifting drive motor, a lead screw mounting base, a lifting drive lead screw, and a lifting plate. The lifting drive motor and the lead screw mounting base are both mounted on the lifting mounting base, and the lifting drive lead screw is mounted on the lead screw mounting base. The lifting drive motor and the lifting drive lead screw are connected, and the lifting plate is fixedly connected to the lead screw nut on the lifting drive lead screw.

5. The lens mold clamping device with positioning and diameter measurement according to claim 4, characterized in that: The lifting mounting base is provided with a linear guide rail, and the lifting plate is provided with a linear slider, which is slidably connected to the linear guide rail.

6. The lens mold holding device with positioning and diameter measurement according to claim 1, characterized in that: The lens mold placement fixture includes a right-angle connecting plate, a first side plate, two symmetrical second side plates, and a base plate. The upper end of the right-angle connecting plate is connected to a robotic arm, and the lower end of the right-angle connecting plate is fixedly connected to the first side plate. The first side plate and the two symmetrical second side plates are respectively connected to three adjacent sides of the base plate. The lens mold is placed on the base plate, and the lens mold is located within the area enclosed by the first side plate and the two symmetrical second side plates.

7. The lens mold clamping device with positioning and diameter measurement according to claim 6, characterized in that: The base plate is provided with through hole one and through hole two, and the end of the side plate two that connects with the base plate is provided with through hole three, and through hole two and through hole three are connected.

8. The lens mold clamping device with positioning and diameter measurement according to claim 1, characterized in that: The robotic arm includes a robotic arm mounting base, a clamping drive cylinder, a robotic arm lifting plate, a mold suction nozzle, a ball spline, and a rotary drive assembly. The clamping drive cylinder is fixedly mounted on the robotic arm mounting base, and its piston rod is connected to the robotic arm lifting plate. The rotary drive assembly is mounted on the robotic arm mounting base, and it is connected to the outer wall at the midpoint of the ball spline's axial direction. The upper end of the ball spline is connected to the robotic arm lifting plate, and the lower end of the ball spline is connected to the mold suction nozzle.

9. The lens mold clamping device with positioning and diameter measurement according to claim 8, characterized in that: The rotating driving assembly comprises a rotating driving motor, a driving wheel, a driven wheel, a belt and a rotating support base, the rotating support base and the manipulator mounting base are fixedly connected, the rotating driving motor, the driving wheel and the driven wheel are arranged on the rotating support base, the rotating shaft of the rotating driving motor is connected with the driving wheel, the driving wheel is connected with the driven wheel through the belt, and the driven wheel is connected with the ball spline.

10. The lens mold clamping device with positioning and diameter measurement according to claim 9, characterized in that: The lower end of the ball spline is provided with a limiting ring, and a buffer spring is arranged between the limiting ring and the rotating support base.

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