Processing technology and device of PPG spherical glass

Abstract

The invention discloses a PPG spherical glass machining process and device, and belongs to the technical field of lens grinding, the PPG spherical glass machining device comprises a rack, a spindle box, a moving seat, a grinding wheel, a first clamp, a second clamp and a first adsorption mechanism, the spindle box is installed on the rack, and the second clamp is installed on a spindle of the spindle box; the second clamp is provided with an annular second matching face used for being matched with the convex face of the spherical glass, the rotating shaft is sleeved with a clamping spring used for forcing the first clamp to slide towards the second clamp, and the first clamp is provided with an annular first matching face used for being matched with the plane of the spherical glass. The first adsorption mechanism comprises a first suction cup, a first connecting plate and a first negative pressure assembly, the first suction cup is fixedly connected with the first connecting plate, the first negative pressure assembly enables the first suction cup to be adsorbed to the plane of the spherical glass, and a first force transmission cylinder extending in the axial direction of the first clamp is fixed to the outer diameter of the first connecting plate; the outer wall of the first force transmission cylinder is attached to the inner circumferential wall of the first clamp. The coring processing quality can be improved.

Description

Technical Field

[0001] The present application belongs to the technical field of lens grinding, and relates to a processing technology and device for PPG spherical glass. Background Art

[0002] PPG spherical lenses are divided into biconvex lenses, biconcave lenses, plano-convex lenses, plano-concave lenses and meniscus-convex lenses. Regardless of the type of lens, both sides of the lens need to be cut, roughly ground, polished and cored during processing.

[0003] Among them, core processing is extremely important, because, in a multi-lens system, it is generally composed of several to more than ten lenses. In order to meet the optical performance, it is necessary to make the central axis of the cylinder containing the lenses and the axis formed by the center of each lens consistent. Core processing refers to the use of two clamps to clamp the two sides of the lens respectively, one of the clamps is in contact with one side of the lens through the elastic force of the clamping spring, the geometric axes of the two clamps (clamp rotation axes) coincide, and the axes of the clamps coincide with the optical axes of the centers of curvature of the two sides of the lens. The clamp drives the lens to rotate along its own optical axis, and then the grinding wheel is used to grind the outer circle of the lens so that the axis of the outer circle of the lens coincides with the optical axes of the centers of curvature of the two sides of the lens. Therefore, the outer circle of the lens can be used as the installation reference surface for assembling the multi-lens system, so that the optical axes of each lens are consistent, and the coaxiality of the lens system is achieved.

[0004] During the core extraction process, the two clamps apply axial clamping pressure to the lens under the action of the clamping spring to ensure the stability of the lens installation. Secondly, under the axial clamping pressure, the clamps abut against the two sides of the lens to correct the position of the lens, that is, the elastic force of the clamping spring has the function of clamping and positioning the lens.

[0005] However, during core extraction, the grinding wheel applies radial grinding force to the outer circle of the lens. When the radial grinding force is large, it is easy to cause radial movement and deviation of the lens, thereby resulting in a decrease in the coaxial machining accuracy. In order to resist the radial grinding force of the grinding wheel, the elastic force of the clamping spring needs to be set relatively large, especially for plano-convex lenses. One side of the plano-convex lens is a plane and the other side is a convex surface. The clamp only applies axial force to the plane of the plano-convex lens. The force of the plane of the plano-convex lens to resist the radial grinding force of the grinding wheel only comes from the friction between the clamp and the plane of the plano-convex lens. The plane is relatively smooth and the friction is relatively low. Therefore, under the condition of large radial grinding force of the grinding wheel, the plano-convex lens is more prone to radial movement and deviation, and the core extraction machining accuracy is low. Moreover, even if the elastic force of the clamping spring is increased, it is difficult to have a better improvement. Summary of the invention

[0006] Aiming at the problem of low processing precision of existing plano-convex lens core extraction, a processing technology and device for PPG spherical glass are provided.

[0007] The present application provides a PPG spherical glass processing device, which is specifically implemented by the following technical solutions: A processing device for PPG spherical glass, comprising a frame, a spindle box, a movable seat, a grinding wheel, a first clamp, a second clamp and a first adsorption mechanism, wherein the spindle box is installed on the frame, the movable seat and the frame are slidably arranged in a direction close to or away from the spindle box, the second clamp is installed on the spindle of the spindle box, the second clamp is provided with an annular second mating surface for mating with the convex surface of the spherical glass, the movable seat is provided with a rotating shaft coaxial with the spindle, the first clamp and the rotating shaft are axially slidable and anti-rotationally matched, the rotating shaft sleeve is provided with a clamping spring for forcing the first clamp to slide toward the second clamp, the first clamp is provided with an annular first mating surface for mating with the plane of the spherical glass; the first adsorption mechanism comprises a first suction cup, a first connecting plate and a first negative pressure component, the first suction cup is fixedly connected to the first connecting plate, the first negative pressure component enables the first suction cup to be adsorbed on the plane of the spherical glass, a first force transmission cylinder extending axially along the first clamp is fixed at the outer diameter of the first connecting plate, and the outer wall of the first force transmission cylinder is fitted to the inner circumferential wall of the first clamp.

[0008] Through the above technical scheme, during the core extraction process, the movable seat moves in the direction close to the spindle box, and under the elastic force of the clamping spring, the first clamp and the second clamp clamp the spherical glass together, and the first matching surface and the second matching surface respectively match with the plane and convex surface of the spherical glass to position the spherical glass, so that the center of curvature of the plane and convex surface of the spherical glass coincides with the axis of the spindle, and then the first negative pressure component is started, and the first negative pressure component makes the first suction cup adsorbed on the plane of the spherical glass, and then the spindle rotates to drive the first clamp, the second clamp and the spherical glass, the first suction cup and the first connecting plate to rotate together, and the grinding wheel approaches the outer circle of the spherical glass in the radial direction to grind the spherical glass. During this period, the radial grinding force of the grinding wheel is applied to the outer circle of the spherical glass, and the radial force of the spherical glass is applied to the first clamp through the first suction cup, the first connecting plate and the first force transmission tube, and the first clamp effectively resists the radial grinding force of the grinding wheel, thereby greatly improving the radial force resistance of the spherical glass, so as to greatly reduce radial movement and offset, and thus greatly improve the core extraction processing accuracy.

[0009] In summary, by setting the first adsorption mechanism, the first negative pressure component enables the first suction cup to be adsorbed on the plane of the spherical glass, so that the radial grinding force of the grinding wheel can be transmitted to the first suction cup, the first connecting plate and the first force transmission cylinder through the spherical glass, and the first clamp has a radial limit for the first force transmission cylinder, thereby effectively resisting the radial grinding force of the grinding wheel, thereby greatly improving the radial force resistance of the spherical glass, so as to greatly reduce radial movement and deviation, and further greatly improve the core processing accuracy.

[0010] Optionally, it also includes a second adsorption mechanism, which includes a second suction cup, a connecting ring, a second connecting plate and a second negative pressure assembly. The second suction cup is coaxially arranged with the second mating surface. The cross-section of the connecting ring is circular. The connecting ring is fixed to the outer diameter of the second suction cup. The connecting ring is fixedly connected to the second connecting plate. The second negative pressure assembly enables the second suction cup to be adsorbed on the convex surface of the spherical glass. A second force transmission tube extending axially along the second clamp is fixed to the outer diameter of the second connecting plate, and the outer wall of the second force transmission tube is in contact with the inner circumferential wall of the second clamp.

[0011] Through the above technical scheme, by setting the second adsorption mechanism, the second negative pressure component enables the second suction cup to be adsorbed on the convex surface of the spherical glass, so that the radial grinding force of the grinding wheel can be transmitted to the second suction cup, the connecting ring, the second connecting plate and the second force transmission cylinder through the spherical glass, and the second clamp has a radial limit for the second force transmission cylinder, so as to effectively resist the radial grinding force of the grinding wheel, thereby greatly improving the radial force resistance of the spherical glass, so as to greatly reduce radial movement and deviation, and then greatly improve the core processing accuracy.

[0012] Optionally, the first negative pressure component includes a negative pressure tube, an annular rotary joint and an air pump, the rotating shaft has a flow channel, the rotary joint is rotatably sleeved on the outside of the rotating shaft, an annular groove is provided at the inner diameter of the rotary joint, an air hole connected to the annular groove is provided at the outer diameter of the rotary joint, the air hole is connected to the air pump through an air pipe, the annular groove is connected to the air outlet end of the flow channel, and the air inlet end of the flow channel is connected to the first suction cup through a negative pressure tube.

[0013] Through the above technical solution, the air pump is started to extract the air in the first suction cup from the negative pressure tube, the flow channel, the annular groove, the air hole and the air pipe in sequence, so that the first suction cup can be negatively adsorbed on the plane of the spherical glass. In addition, by setting a rotating joint, the position of the air pipe will not be interfered with during the rotation of the rotating shaft, so as to ensure the stability of maintaining the negative pressure.

[0014] Optionally, it also includes a sealing and pressing assembly, the first clamp is a cylindrical structure, one end face of the first clamp is the first mating surface, the other end face of the first clamp is fixed with a sliding sleeve, the sliding sleeve is arranged on the outside of the rotating shaft, and the sliding sleeve is matched with the rotating shaft to prevent rotation; the first suction cup is set as one and is coaxially arranged with the first clamp, the first connecting plate is provided with a center hole, and the inner wall of the center hole is coaxially provided with a first conical surface, the first suction cup includes a circular adsorption body and an annular mating ring from the inside to the outside, the thickness of the mating ring is greater than the adsorption body, the outer circumferential surface of the mating ring is provided with a second conical surface, the inner circumferential surface of the mating ring is provided with a third conical surface, and the mating ring and An annular embedding groove is provided at the connection of the adsorption body, and the cross-section of the embedding groove is V-shaped; the sealing and clamping assembly includes a clamping cylinder and a limiting structure, the clamping cylinder is coaxially arranged with the rotating shaft, one end of the clamping cylinder is threadedly matched with the rotating shaft, and the other end of the clamping cylinder has a fourth conical surface and a clamping ring, and the limiting structure is used to fix the clamping cylinder and the first clamp; when the clamping cylinder moves toward the second clamp, the fourth conical surface of the clamping cylinder first fits against the third conical surface to force the matching ring to expand elastically, and the second conical surface of the matching ring fits against the first conical surface of the center hole, and the clamping ring of the clamping cylinder then enters the embedding groove to force the outer edge of the adsorption body to fit against the plane of the spherical glass.

[0015] Through the above technical solution, during the core extraction process, the movable seat moves in the direction close to the spindle box, and under the elastic force of the clamping spring, the first clamp and the second clamp jointly clamp the spherical glass, and the first mating surface and the second mating surface respectively cooperate with the plane and convex surface of the spherical glass to position the spherical glass, so that the curvature center of the plane and convex surface of the spherical glass coincides with the axis of the spindle, and then the clamping cylinder is rotated, and the clamping cylinder moves toward the second clamp through threaded cooperation, and the fourth conical surface of the clamping cylinder first fits against the third conical surface to force the fitting ring to elastically expand outward, so that the second conical surface of the fitting ring fits against the first conical surface of the center hole. In this process, the elastic expansion of the fitting ring will force the adsorption body to unfold and lay flat, and the adsorption body will fit more closely. On the plane of the spherical glass, and the matching ring is compressed between the first conical surface and the fourth conical surface, the matching ring is compressed and hardened, and the structural strength of the matching ring is greatly improved; then the pressing cylinder continues to be rotated, and the pressing cylinder continues to move toward the second clamp, and the pressing ring of the pressing cylinder will enter the embedding groove to force the outer edge of the adsorption body to fit the plane of the spherical glass, that is, the part of the adsorption body pressed by the pressing ring becomes an annular sealing area to improve the sealing of the first suction cup; then the limiting structure is activated to fix the pressing cylinder and the first clamp to prevent the pressing cylinder from spinning, thereby ensuring the abutment stability between the pressing cylinder and the matching ring; finally, the first negative pressure component is started to make the first suction cup adsorbed on the plane of the spherical glass.

[0016] In summary, by setting up a sealing and clamping assembly, the mating ring is first compressed and hardened, and the structural strength of the mating ring is greatly improved, so as to improve the radial force transmission effect between the mating ring and the first connecting plate, thereby improving the radial displacement resistance of the spherical glass. Secondly, the elastic expansion of the mating ring will force the adsorption body to spread out and lay flat, so that the adsorption body is more closely attached to the plane of the spherical glass, and the part of the adsorption body pressed by the clamping ring becomes an annular sealing area, so that the adsorption area of ​​the first suction cup is more evenly distributed and the sealing is improved, thereby greatly improving the adsorption effect of the first suction cup, and then improving the radial displacement resistance of the spherical glass.

[0017] Optionally, the limiting structure includes a bolt and a nut, and the first clamp is provided with a track groove, the bolt passes through the track groove, the bolt is parallel to the axis of the first clamp, the bolt is fixedly connected to the clamping cylinder, the end face of the nut has a first rubber pad, and the surface of the first clamp facing away from the second clamp is fixed with a second rubber pad extending along the track groove, the nut is threadedly connected to the bolt and the first rubber pad and the second rubber pad are in fit.

[0018] Through the above technical solution, the bolt is moved along the direction of the trajectory groove to drive the clamping cylinder to rotate relative to the first clamp to achieve axial movement of the clamping cylinder. After the axial movement of the clamping cylinder is completed, the nut is tightened to make the first rubber pad and the second rubber pad fit together. The friction between the first rubber pad and the second rubber pad is used to limit the continued movement of the bolt along the trajectory groove, thereby limiting the axial position of the clamping cylinder.

[0019] Furthermore, the tightened nut will apply axial pressure to the first clamp to improve the clamping effect of the first clamp on the spherical glass.

[0020] Optionally, the sealing and pressing assembly also includes a slide cylinder and a slide rod, the slide rod is parallel to the axis of the first clamp, the slide rod slides through the track groove, the slide cylinder axially slides and penetrates the inner wall of the pressing cylinder, and the slide rod is fixedly connected to the slide cylinder; a support frame is provided at one end of the slide cylinder, the support frame includes a connecting ring coaxially arranged with the first clamp and a plurality of ribs arranged concentrically and radially, and the two ends of the rib are respectively fixed to one end of the slide cylinder and the outer wall of the connecting ring, the surface of the first suction cup is provided with a card groove, the cross-section of the card groove is trapezoidal, the notch size of the card groove is smaller than the groove bottom size of the card groove, the rib is stuck in the card groove and forces the notch edges of the card groove to elastically expand outward; a plurality of V-shaped spring pieces evenly arranged circumferentially are fixed to the end of the slide cylinder away from the supporting frame, and a limiting ring for cooperating with the V-shaped spring piece is coaxially fixed to the inner wall of the pressing cylinder, and the cross-section of the limiting ring is triangular.

[0021] Through the above technical solution, when the spherical glass is not clamped and positioned, the inner surface of the V-shaped spring piece is in contact with the surface of the limiting ring. At this time, the supporting frame of the slide tube is higher than the first suction cup.

[0022] When the mating ring elastically expands outward and forces the adsorption body to unfold and lay flat, the adsorption body is attached to the plane of the spherical glass, the nut is tightened to limit the axial position of the pressing cylinder, and the first negative pressure component is started, so that the first suction cup is adsorbed on the plane of the spherical glass, and then the sliding rod is moved axially to drive the sliding cylinder to move axially toward the second clamp. During this process, the V-shaped spring piece elastically deflects inwardly to avoid the limit ring, and the ribs of the sliding cylinder are embedded in the slot, and the ribs force the edges of the notch of the slot to elastically expand outward and deform. If the ribs are not located directly above the slot, the sliding rod can be rotated to adjust the circumferential positions of the sliding cylinder and the ribs, so that the ribs are located directly above the slot to facilitate the accurate insertion of the ribs. After the ribs are inserted into the slots, the ribs form the skeleton of the first suction cup to improve the structural strength and force transmission effect of the first suction cup, thereby reducing the deformation and displacement of the first suction cup caused by excessive radial force on the spherical glass, that is, improving the spherical glass's ability to resist radial displacement.

[0023] The present application provides a processing technology for PPG spherical glass, which is specifically implemented by the following technical solutions: A processing technology for PPG spherical glass comprises the following steps: S1, cleaning of incoming materials; S2, testing of incoming material size; S3, plane grinding and cleaning of PPG spherical glass; S4, plane polishing of PPG spherical glass; S5, polishing and cleaning; S6, inspection of semi-finished products; S7, roughing of convex surface of PPG spherical glass; S8, fine grinding of convex surface of PPG spherical glass; S9, plane fine grinding of PPG spherical glass; S10, coring of PPG spherical glass: coring of PPG spherical glass by using a processing device for PPG spherical glass; S11, fine polishing of convex surface of PPG spherical glass; S12, plane fine polishing of PPG spherical glass; S13, ultrasonic cleaning; S14, inspection of finished products; S15, packaging.

[0024] Optionally, in step S13, the ratio of the cleaning liquid is 1200-1500 ml of detergent / 50 kg of water, the cleaning liquid is ultrasonically heated to 35°-50°, and the cleaning is carried out for 4-6 minutes.

[0025] The beneficial effects of this application are: 1. By setting the first adsorption mechanism, the first negative pressure component makes the first suction cup adsorbed on the plane of the spherical glass, so that the radial grinding force of the grinding wheel can be transmitted to the first suction cup, the first connecting plate and the first force transmission cylinder through the spherical glass, and the first clamp has a radial limit for the first force transmission cylinder, so as to effectively resist the radial grinding force of the grinding wheel, thereby greatly improving the radial force resistance of the spherical glass, greatly reducing radial movement and deviation, and thus greatly improving the core processing accuracy; 2. By setting a sealing and pressing assembly, the matching ring is first compressed and hardened, and the structural strength of the matching ring is greatly improved, so as to improve the radial force transmission effect between the matching ring and the first connecting plate, thereby improving the radial displacement resistance of the spherical glass. Secondly, the elastic expansion of the matching ring will force the adsorption body to spread out and lay flat, so that the adsorption body is more closely attached to the plane of the spherical glass, and the part of the adsorption body pressed by the pressing ring becomes an annular sealing area, so that the adsorption area of ​​the first suction cup is more evenly distributed and the sealing is improved, thereby greatly improving the adsorption effect of the first suction cup, and then improving the radial displacement resistance of the spherical glass; 3. By setting a support frame, the ribs form the frame of the first suction cup to improve the structural strength and force transmission effect of the first suction cup, thereby reducing the deformation and displacement of the first suction cup caused by excessive radial force of the spherical glass, that is, improving the ability of the spherical glass to resist radial displacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the processing device of Example 1.

[0027] Figure 2 4 is a cross-sectional view of the first clamp and the second clamp of Example 1.

[0028] Figure 3 3 is a top view of the first connecting plate of Example 1.

[0029] Figure 4 It is a flowchart of the processing technology of Example 1.

[0030] Figure 5 It is a cross-sectional view of the first clamp and the second clamp of Example 2.

[0031] Figure 6 yes Figure 5 A partial enlarged view of point A in the middle.

[0032] Figure 7 It is a cross-sectional view of the first clamp and the second clamp of Example 3.

[0033] Figure 8 yes Figure 7 A partial enlarged view of point B in the middle.

[0034] Fig. 9 It is a partial cross-sectional view of the first suction cup of Example 3.

[0035] Fig.10 It is a top view of the first clamp of Example 3.

[0036] Fig.11 It is a cross-sectional view of the first clamp and the second clamp of Example 4.

[0037] Fig.12 yes Fig.11 A partial enlarged view of point C in the middle.

[0038] Fig.13 It is a schematic diagram of the slide barrel of Example 4.

[0039] Fig.14 It is a schematic diagram of displacement change of Example 4 for demonstrating the matching process between the rib and the slot.

[0040] Explanation of reference numerals: 1. first fixture; 2. second fixture; 10. frame; 100. spherical glass; 101. spindle box; 102. moving seat; 103. spindle; 104. grinding wheel; 105. rotating shaft; 1051. keyway; 1052. shoulder; 1053. clamping spring; 1054. flow channel; 1055. internal thread; 11. first mating surface; 12. sleeve; 121. key block; 13. first vent hole; 130. track groove; 21. second mating surface; 22. second vent hole; 31. first suction cup; 311. suction body; 312. mating ring; 313. second conical surface; 314. third conical surface; 315. embedding groove; 316. card Groove; 32, first connecting plate; 321, mounting hole; 322, first cone; 33, first force transmission cylinder; 34, rotating joint; 341, annular groove; 342, air hole; 351, negative pressure tube; 352, air pipe; 41, second suction cup; 42, second connecting plate; 43, second force transmission cylinder; 44, connecting ring; 51, clamping cylinder; 511, threaded tube; 512, third vent hole; 513, lower pressure cylinder; 514, fourth cone; 515, clamping ring; 516, limiting ring; 52, bolt; 53, nut; 531, first rubber pad; 532, second rubber pad; 61, sliding rod; 62, sliding cylinder; 63, V-shaped spring piece; 65, rib; 66, connecting ring. DETAILED DESCRIPTION

[0041] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the attached Figure 1-Figure 14 Shown in.

[0042] In the description of this specification, the description with reference to the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0043] Example 1 Example 1 discloses a processing device for PPG spherical glass, such as Figure 1 , Figure 2 As shown, the processing device of PPG spherical glass includes a frame 10, a spindle box 101, a movable seat 102, a grinding wheel 104, a first fixture 1, a second fixture 2 and a first adsorption mechanism, wherein the spindle box 101 is installed on the frame 10, the spindle 103 of the spindle box 101 is vertically arranged upward, the spindle box 101 drives the spindle 103 to rotate, and the second fixture 2 is installed on the spindle 103 of the spindle box 101.

[0044] like Figure 2 As shown, the second fixture 2 is a cylindrical structure, the second fixture 2 is coaxial with the main shaft 103 , and the upper end surface of the second fixture 2 is set as a second matching surface 21 , and the second matching surface 21 is used to abut and match with the convex surface of the spherical glass 100 .

[0045] like Figure 1 , Figure 2 As shown, the movable seat 102 is slidably matched with the slide rail of the frame 10 (not shown in the figure). In this embodiment, the movable seat 102 is arranged to move vertically, that is, the movable seat 102 can slide towards or away from the spindle box 101. The movable seat 102 is provided with a rotating shaft 105, and the rotating shaft 105 is rotatably arranged with the movable seat 102. The rotating shaft 105 is arranged vertically downward, and the rotating shaft 105 is coaxial with the spindle 103. The first clamp 1 slides axially with the rotating shaft 105 and is locked. Specifically, the first clamp 1 It is a cylindrical structure. The first clamp 1 is coaxial with the rotating shaft 105. A sliding sleeve 12 is coaxially fixed to the upper end face of the first clamp 1. The sliding sleeve 12 is slidingly sleeved on the outside of the rotating shaft 105. The outer wall of the rotating shaft 105 is provided with a key groove 1051 extending along its own axial direction. A key block 121 is fixed to the inner wall of the sliding sleeve 12. The key block 121 and the key groove 1051 are slidingly matched, so that the first clamp 1 can slide axially relative to the rotating shaft 105, and the torque of the first clamp 1 can be transmitted to the rotating shaft 105, that is, a anti-rotation fit.

[0046] The lower end surface of the first fixture 1 is set as a first matching surface 11, and the first matching surface 11 is used to abut and match with the plane of the spherical glass 100. The first fixture 1 is also provided with a first vent hole 13 connected to its inner cavity.

[0047] The rotating shaft 105 is sleeved with a clamping spring 1053 , one end of the clamping spring 1053 abuts against the shaft shoulder 1052 of the rotating shaft 105 , and the other end of the clamping spring 1053 abuts against the upper end surface of the sliding sleeve 12 . The clamping spring 1053 is used to force the first clamp 1 to slide toward the second clamp 2 .

[0048] like Figure 2 , Figure 3As shown, the first adsorption mechanism includes a first suction cup 31, a first connecting plate 32 and a first negative pressure assembly. The first connecting plate 32 is a circular plate. The first connecting plate 32 is coaxially arranged with the first clamp 1. The first connecting plate 32 has an outer diameter integrally formed with a first force transmission cylinder 33 extending axially along the first clamp 1. The outer wall of the first force transmission cylinder 33 is fitted to the inner circumferential wall of the first clamp 1, so that the first force transmission cylinder 33 can slide axially relative to the first clamp 1. In other embodiments, a guide flat key connection can be set between the first force transmission cylinder 33 and the first clamp 1 to achieve anti-rotation fit.

[0049] In this embodiment, the number of the first suction cup 31 is 4. In other embodiments, the number of the first suction cup 31 can be 1, 3 or 5. The first suction cup 31 is fixedly connected to the first connecting plate 32. Specifically, the first connecting plate 32 is penetrated by a plurality of mounting holes 321, and the mounting holes 321 are evenly arranged around the circumference of the axis of the first connecting plate 32. The outer diameter of the first suction cup 31 is bonded and fixed to the hole wall of the mounting hole 321.

[0050] The first negative pressure component enables the first suction cup 31 to be adsorbed on the plane of the spherical glass 100. Specifically, the first negative pressure component includes a negative pressure tube 351, an annular rotary joint 34 and an air pump (not shown in the figure). The rotating shaft 105 has a flow channel 1054. The rotary joint 34 is rotatably sleeved on the outside of the rotating shaft 105. An annular groove 341 is provided at the inner diameter of the rotary joint 34. An air hole 342 connected to the annular groove 341 is provided at the outer diameter of the rotary joint 34. The air hole 342 is connected to the air pump through an air pipe 352. The annular groove 341 is connected to the air outlet end of the flow channel 1054. The air inlet end of the flow channel 1054 is connected to the first suction cup 31 through the negative pressure tube 351. The negative pressure tube 351 can be a hose.

[0051] When the air pump is started, the air in the first suction cup 31 is extracted from the negative pressure tube 351, the flow channel 1054, the annular groove 341, the air hole 342 and the air tube 352 in sequence, so that the first suction cup 31 can be negatively adsorbed on the plane of the spherical glass 100. In addition, by setting the rotating joint 34, the position of the air tube 352 will not be interfered with during the rotation of the rotating shaft 105, so as to ensure the stability of the negative pressure maintenance.

[0052] Embodiment 1 also discloses a processing technology of PPG spherical glass 100, such as Figure 4 As shown, the processing technology of the PPG spherical glass 100 includes the following steps: S1. Incoming material cleaning: The cleaning liquid ratio is 1200-1500ml detergent / 50KG water, the cleaning liquid is ultrasonically heated to 40°-50°, and the cleaning is carried out for 3-5 minutes.

[0053] S2. Incoming material size test.

[0054] S3. Surface grinding and cleaning of the PPG spherical glass 100.

[0055] S4. Plane polishing of the PPG spherical glass 100.

[0056] S5. Polishing and cleaning.

[0057] S6. Inspection of semi-finished products.

[0058] S7. Roughening the convex surface of the PPG spherical glass 100.

[0059] S8. Fine grinding of the convex surface of the PPG spherical glass 100.

[0060] S9. Surface fine grinding of PPG spherical glass 100.

[0061] S10, coring of PPG spherical glass 100: The PPG spherical glass processing device mentioned above is used to perform coring processing on the PPG spherical glass 100. Specifically, during the coring processing, the movable seat 102 moves in a direction close to the spindle box 101, and under the elastic force of the clamping spring 1053, the first clamp 1 and the second clamp 2 jointly clamp the spherical glass 100, and the first matching surface 11 and the second matching surface 21 are respectively matched with the plane and convex surface of the spherical glass 100 to position the spherical glass 100, so that the curvature center of the plane and convex surface of the spherical glass 100 coincides with the axis of the spindle 103, and then the first negative pressure component is started, and the first negative pressure component causes the first suction cup 31 to be adsorbed on the plane of the spherical glass 100, and then the spindle 1 03 rotates to drive the first fixture 1, the second fixture 2 and the spherical glass 100, the first suction cup 31 and the first connecting plate 32 to rotate together, and the grinding wheel 104 radially approaches the outer circle of the spherical glass 100 to grind the spherical glass 100. During this period, the radial grinding force of the grinding wheel 104 is applied to the outer circle of the spherical glass 100, and the radial force of the spherical glass 100 is applied to the first fixture 1 through the first suction cup 31, the first connecting plate 32 and the first force transmission cylinder 33, and the first fixture 1 has a radial limit for the first force transmission cylinder 33, that is, the first fixture 1 effectively resists the radial grinding force of the grinding wheel 104, thereby greatly improving the radial force resistance of the spherical glass 100, so as to greatly reduce radial movement and offset, and further greatly improve the core processing accuracy.

[0062] In other embodiments, in order to improve the fitting effect between the first suction cup 31 and the plane of the spherical glass 100 and to improve the subsequent adsorption effect, a spring can be provided on the first clamp 1. The spring is provided coaxially with the first clamp 1, and the two ends of the spring respectively abut against the inner end surface of the first clamp 1 and the end surface of the first force transmission cylinder 33 to force the first force transmission cylinder 33 to move in a direction close to the second clamp 2.

[0063] S11. Fine polishing of the convex surface of PPG spherical glass 100.

[0064] S12, plane fine polishing of PPG spherical glass 100.

[0065] S13, ultrasonic cleaning: the cleaning liquid ratio is 1200-1500ml detergent / 50KG water, the cleaning liquid is ultrasonically heated to 35°-50°, and the cleaning time is 4-6 minutes.

[0066] S14. Finished product inspection.

[0067] S15. Packaging.

[0068] Example 2 The difference between Example 2 and Example 1 is that Figure 5 , Figure 6 As shown, the processing device of the PPG spherical glass also includes a second adsorption mechanism, which includes a second suction cup 41, a connecting ring 44, a second connecting plate 42 and a second negative pressure assembly. The second suction cup 41 is coaxially arranged with the second mating surface 21, and the cross-section of the connecting ring 44 is circular. The connecting ring 44 is bonded and fixed to the outer diameter of the second suction cup 41, that is, the connecting ring 44 is coaxially arranged with the second fixture 2, and the second connecting plate 42 is an annular structure. The connecting ring 44 is coaxially fixed to the inner diameter of the second connecting plate 42.

[0069] A second force transmission cylinder 43 extending axially along the second clamp 2 is fixed at the outer diameter of the second connecting plate 42, and the outer wall of the second force transmission cylinder 43 is fitted to the inner circumferential wall of the second clamp 2, so that the second force transmission cylinder 43 can slide axially relative to the second clamp 2. In other embodiments, a guide flat key connection can be set between the second force transmission cylinder 43 and the second clamp 2 to achieve anti-rotation fit. The second clamp 2 is also provided with a second vent hole 22 connected to its own inner cavity.

[0070] The second negative pressure assembly enables the second suction cup 41 to be adsorbed onto the convex surface of the spherical glass 100 . The structure of the second negative pressure assembly is consistent with that of the first negative pressure assembly, and will not be described in detail herein.

[0071] The second negative pressure assembly causes the second suction cup 41 to be adsorbed on the convex surface of the spherical glass 100, so that the radial grinding force of the grinding wheel 104 can be transmitted to the second suction cup 41, the connecting ring 44, the second connecting plate 42 and the second force transmission cylinder 43 through the spherical glass 100, and the second fixture 2 has a radial limit for the second force transmission cylinder 43, thereby effectively resisting the radial grinding force of the grinding wheel 104, thereby greatly improving the radial force resistance of the spherical glass 100, greatly reducing radial movement and deviation, and further greatly improving the core processing accuracy.

[0072] In other embodiments, in order to improve the fitting effect between the second suction cup 41 and the convex surface of the spherical glass 100 and to improve the subsequent adsorption effect, a spring can be provided on the second clamp 2. The spring is provided coaxially with the second clamp 2, and the two ends of the spring respectively abut against the inner end surface of the second clamp 2 and the end surface of the second force transmission cylinder 43 to force the second force transmission cylinder 43 to move in a direction close to the first clamp 1.

[0073] Example 3 The difference between Example 3 and Example 1 is that Figure 7 , Figure 8 , Fig. 9 As shown, the first suction cup 31 is set as one and is coaxially arranged with the first clamp 1, the first connecting plate 32 is provided with a center hole, and the inner wall of the center hole is coaxially provided with a first conical surface 322, and the first suction cup 31 includes a circular adsorption body 311 and an annular matching ring 312 from the inside to the outside, the matching ring 312 and the adsorption body 311 are integrally formed and connected, the thickness of the matching ring 312 is greater than the adsorption body 311, the outer peripheral surface of the matching ring 312 is provided with a second conical surface 313, the inner peripheral surface of the matching ring 312 is provided with a third conical surface 314, and an annular embedding groove 315 is provided at the junction of the matching ring 312 and the adsorption body 311, and the cross-section of the embedding groove 315 is V-shaped.

[0074] The processing device of the PPG spherical glass also includes a sealing and pressing assembly, which includes a pressing cylinder 51 and a limiting structure. The pressing cylinder 51 is coaxially arranged with the rotating shaft 105. A third vent hole 512 is opened through the cylinder wall of the pressing cylinder 51. The upper end of the pressing cylinder 51 is threadedly matched with the rotating shaft 105. Specifically, a threaded tube 511 is coaxially fixed to the upper end of the pressing cylinder 51, and an internal thread 1055 is opened at the lower end of the rotating shaft 105. The threaded tube 511 is threadedly matched with the internal thread 1055; the lower end of the pressing cylinder 51 is coaxially rotatably matched with a lower pressing cylinder 513, and a pressing ring 515 is coaxially fixed to the lower end surface of the lower pressing cylinder 513. The cross section of the pressing ring 515 is V-shaped, and a fourth conical surface 514 is provided at the junction of the lower end surface of the lower pressing cylinder 513 and the outer peripheral surface.

[0075] The limiting structure is used to fix the pressing cylinder 51 and the first clamp 1. Specifically, the limiting structure includes a bolt 52 and a nut 53. The first clamp 1 is penetrated by a track groove 130 (such as Fig.10 As shown), the bolt 52 passes through the track groove 130, the bolt 52 is parallel to the axis of the first clamp 1, the bolt 52 is fixedly connected to the clamping cylinder 51, the nut 53 is threadedly connected to the bolt 52, the end face of the nut 53 has a first rubber pad 531, and the surface of the first clamp 1 facing away from the second clamp 2 is fixed with a second rubber pad 532 extending along the track groove 130.

[0076] During the core extraction process, the movable seat 102 moves in the direction close to the spindle box 101, and under the elastic force of the clamping spring 1053, the first clamp 1 and the second clamp 2 clamp the spherical glass 100 together, and the first matching surface 11 and the second matching surface 21 respectively match with the plane and convex surface of the spherical glass 100 to position the spherical glass 100, so that the curvature center of the plane and convex surface of the spherical glass 100 coincides with the axis of the spindle 103, and the bolt 52 is moved along the direction of the track groove 130 to bring The dynamic pressing cylinder 51 rotates relative to the first clamp 1, and through the threaded fit, the pressing cylinder 51 moves toward the second clamp 2. The fourth conical surface 514 of the pressing cylinder 51 first fits the third conical surface 314 to force the matching ring 312 to expand elastically, so that the second conical surface 313 of the matching ring 312 fits the first conical surface 322 of the center hole. In this process, the elastic expansion of the matching ring 312 will force the adsorption body 311 to unfold and lay flat, so that the adsorption body 311 fits more closely to the plane of the spherical glass 100, and The matching ring 312 is compressed between the first conical surface 322 and the fourth conical surface 514, and the matching ring 312 is compressed and hardened, and the structural strength of the matching ring 312 is greatly improved. Then, the pressing cylinder 51 continues to rotate, and the pressing cylinder 51 continues to move toward the second clamp 2, and the pressing ring 515 enters the embedding groove 315, so as to force the outer edge of the adsorption body 311 to fit the plane of the spherical glass 100, that is, the part of the adsorption body 311 pressed by the pressing ring 515 becomes an annular sealing area, so as to improve The sealing of the first suction cup 31 is then performed, and the nut 53 is then tightened to make the first rubber pad 531 and the second rubber pad 532 fit together. The friction between the first rubber pad 531 and the second rubber pad 532 is used to limit the continued movement of the bolt 52 along the track groove 130, thereby limiting the axial position of the clamping cylinder 51, thereby ensuring the abutment stability between the clamping cylinder 51 and the matching ring 312. Finally, the first negative pressure assembly is started to allow the first suction cup 31 to be adsorbed on the plane of the spherical glass 100.

[0077] In summary, by setting up a sealing and clamping assembly, the mating ring 312 is first compressed and hardened, and the structural strength of the mating ring 312 is greatly improved, so as to improve the radial force transmission effect between the mating ring 312 and the first connecting plate 32, thereby improving the radial displacement resistance of the spherical glass 100. Secondly, the elastic expansion of the mating ring 312 will force the adsorption body 311 to unfold and lay flat, and the adsorption body 311 is more closely attached to the plane of the spherical glass 100, and the part of the adsorption body 311 that is clamped by the clamping ring 515 becomes an annular sealing area, so that the adsorption area distribution of the first suction cup 31 is more evenly distributed and the sealing is improved, thereby greatly improving the adsorption effect of the first suction cup 31, and then improving the radial displacement resistance of the spherical glass 100.

[0078] Example 4 The difference between Example 4 and Example 3 is that Fig.11 , Fig.12, Fig.13 , Fig.14 As shown, the third vent hole 512 is arranged to extend along the circumference of the clamping cylinder 51 to avoid interference with the slide rod 61. The sealing clamping assembly also includes a slide cylinder 62 and a slide rod 61. The slide cylinder 62 is axially slidable and penetrates the inner wall of the clamping cylinder 51, that is, the slide cylinder 62 is coaxial with the clamping cylinder 51. A plurality of V-shaped spring pieces 63 evenly arranged around the circumference are fixed to the upper end of the slide cylinder 62, and the opening of the V-shaped spring piece 63 is arranged outward. A limit ring 516 is coaxially fixed to the inner wall of the clamping cylinder 51, and the cross section of the limit ring 516 is triangular.

[0079] A support frame is provided at the lower end of the slide cylinder 62, and the support frame includes a connecting ring 66 coaxially arranged with the first clamp 1 and a plurality of concentrically radially arranged ribs 65, and the two ends of the rib 65 are respectively fixed to one end of the slide cylinder 62 and the outer wall of the connecting ring 66, and both side edges of the upper and lower surfaces of the rib 65 are chamfered.

[0080] A slot 316 is formed on the surface of the adsorption body 311 . The cross section of the slot 316 is trapezoidal, and the size of the slot opening of the slot 316 is smaller than the size of the slot bottom of the slot 316 .

[0081] The sliding rod 61 is parallel to the axis of the first clamp 1 , and the sliding rod 61 slides through the track groove 130 . The sliding rod 61 is fixedly connected to the sliding cylinder 62 .

[0082] When the spherical glass 100 is not clamped and positioned, the inner surface of the V-shaped spring piece 63 is in contact with the surface of the limiting ring 516 . At this time, the supporting frame of the slide tube 62 is higher than the first suction cup 31 .

[0083] After the mating ring 312 elastically expands outwards to force the adsorption body 311 to unfold and lay flat, the adsorption body 311 is attached to the plane of the spherical glass 100, the nut 53 is tightened to limit the axial position of the pressing cylinder 51, and the first negative pressure component is started, so that the first suction cup 31 is adsorbed on the plane of the spherical glass 100, the slide rod 61 is moved axially to drive the slide cylinder 62 to move axially toward the second clamp 2. During this process, the V-shaped spring piece 63 elastically deflects inwards to avoid the limit ring 516, and the rib 65 of the slide cylinder 62 is embedded in the card slot 316, and the rib 65 forces the notch edge of the card slot 316 to elastically expand outwards (the rib 65 is The width is greater than the slot width of the slot 316). If the rib 65 is not located directly above the slot 316, the slide bar 61 can be rotated along the direction of the track groove 130 to adjust the circumferential position of the slide cylinder 62 and the rib 65, so that the rib 65 is located directly above the slot 316 to facilitate the accurate insertion of the rib 65. After the rib 65 is inserted into the slot 316, the rib 65 forms the skeleton of the first suction cup 31 to improve the structural strength and force transmission effect of the first suction cup 31, thereby reducing the deformation and displacement of the first suction cup 31 due to excessive radial force on the spherical glass 100, that is, improving the anti-radial displacement capability of the spherical glass 100.

[0084] Moreover, after the rib 65 is inserted into the slot 316, the V-shaped spring piece 63 is lower than the limiting ring 516, and the upper end of the V-shaped spring piece 63 elastically abuts against an inclined surface of the limiting ring 516. The elastic abutment is used to axially limit the slide 62 to increase the difficulty of the slide 62 moving upward to disengage the rib 65 from the slot 316.

[0085] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A PPG spherical glass processing device, characterized in that: The invention comprises a frame (10), a spindle box (101), a movable seat (102), a grinding wheel (104), a first fixture (1), a second fixture (2) and a first adsorption mechanism, wherein the spindle box (101) is mounted on the frame (10), the movable seat (102) and the frame (10) are arranged to slide along a direction approaching or moving away from the spindle box (101), the second fixture (2) is mounted on a spindle (103) of the spindle box (101), the second fixture (2) is provided with an annular second mating surface (21) for mating with a convex surface of a spherical glass (100), the movable seat (102) is provided with a rotating shaft (105) coaxial with the spindle (103), the first fixture (1) and the rotating shaft (105) are axially slidable and have a rotation-stopping mating The rotating shaft (105) is sleeved with a clamping spring (1053) for forcing the first clamp (1) to slide toward the second clamp (2); the first clamp (1) is provided with an annular first matching surface (11) for matching with the plane of the spherical glass (100); the first adsorption mechanism comprises a first suction cup (31), a first connecting plate (32) and a first negative pressure component; the first suction cup (31) is fixedly connected to the first connecting plate (32); the first negative pressure component enables the first suction cup (31) to be adsorbed on the plane of the spherical glass (100); a first force transmission cylinder (33) extending along the axial direction of the first clamp (1) is fixed at the outer diameter of the first connecting plate (32); the outer wall of the first force transmission cylinder (33) is in contact with the inner circumferential wall of the first clamp (1).

2. The PPG spherical glass processing device according to claim 1, characterized in that: The invention also includes a second adsorption mechanism, which includes a second suction cup (41), a connecting ring (44), a second connecting plate (42) and a second negative pressure assembly. The second suction cup (41) is coaxially arranged with the second mating surface (21). The cross section of the connecting ring (44) is circular. The connecting ring (44) is fixed to the outer diameter of the second suction cup (41). The connecting ring (44) is fixedly connected to the second connecting plate (42). The second negative pressure assembly enables the second suction cup (41) to be adsorbed on the convex surface of the spherical glass (100). A second force transmission tube (43) extending along the axial direction of the second fixture (2) is fixed to the outer diameter of the second connecting plate (42). The outer wall of the second force transmission tube (43) is in contact with the inner circumferential wall of the second fixture (2).

3. The PPG spherical glass processing device according to claim 1, characterized in that: The first negative pressure component comprises a negative pressure tube (351), an annular rotating joint (34) and an air pump; the rotating shaft (105) has a flow channel (1054); the rotating joint (34) is rotatably sleeved on the outside of the rotating shaft (105); an annular groove (341) is provided at the inner diameter of the rotating joint (34); an air hole (342) connected to the annular groove (341) is provided at the outer diameter of the rotating joint (34); the air hole (342) is connected to the air pump through an air pipe (352); the annular groove (341) is connected to the air outlet end of the flow channel (1054); and the air inlet end of the flow channel (1054) is connected to the first suction cup (31) through the negative pressure tube (351).

4. The PPG spherical glass processing device according to claim 1 or 2, characterized in that: The invention also comprises a sealing and pressing assembly, wherein the first clamp (1) is a cylindrical structure, one end surface of the first clamp (1) is the first mating surface (11), and the other end surface of the first clamp (1) is fixed with a sliding sleeve (12), the sliding sleeve (12) is slidingly arranged on the outside of the rotating shaft (105), and the sliding sleeve (12) and the rotating shaft (105) are anti-rotationally matched; the first suction cup (31) is provided as one and is coaxially arranged with the first clamp (1), and the first connecting plate (3 2) a central hole is provided, the inner wall of the central hole is coaxially provided with a first conical surface (322), the first suction cup (31) comprises, from the inside to the outside, a circular adsorption body (311) and an annular matching ring (312), the thickness of the matching ring (312) is greater than that of the adsorption body (311), the outer peripheral surface of the matching ring (312) is provided with a second conical surface (313), the inner peripheral surface of the matching ring (312) is provided with a third conical surface (314), and the connection between the matching ring (312) and the adsorption body (311) is open. An annular embedding groove (315) is provided, and the cross section of the embedding groove (315) is V-shaped; the sealing and pressing assembly comprises a clamping cylinder (51) and a limiting structure, the clamping cylinder (51) is coaxially arranged with the rotating shaft (105), one end of the clamping cylinder (51) is threadedly matched with the rotating shaft (105), and the other end of the clamping cylinder (51) has a fourth conical surface (514) and a clamping ring (515), and the limiting structure is used to fix the clamping cylinder (51) and the first clamp (1); when the clamping cylinder (51) is When (51) moves toward the second clamp (2), the fourth conical surface (514) of the clamping cylinder (51) first fits against the third conical surface (314) to force the matching ring (312) to expand elastically, and the second conical surface (313) of the matching ring (312) fits against the first conical surface (322) of the center hole, and the clamping ring (515) of the clamping cylinder (51) then enters the embedded groove (315) to force the outer edge of the adsorption body (311) to fit against the plane of the spherical glass (100).

5. The PPG spherical glass processing device according to claim 4, characterized in that: The limiting structure comprises a bolt (52) and a nut (53); a track groove (130) is formed through the first clamp (1); the bolt (52) passes through the track groove (130); the bolt (52) is parallel to the axis of the first clamp (1); the bolt (52) is fixedly connected to the clamping cylinder (51); the end face of the nut (53) has a first rubber pad (531); a second rubber pad (532) extending along the track groove (130) is fixed to the surface of the first clamp (1) facing away from the second clamp (2); the nut (53) is threadedly connected to the bolt (52) and the first rubber pad (531) and the second rubber pad (532) are in close contact with each other.

6. The PPG spherical glass processing device according to claim 5, characterized in that: The sealing and clamping assembly also includes a slide cylinder (62) and a slide rod (61), the slide rod (61) is parallel to the axis of the first clamp (1), the slide rod (61) slides through the track groove (130), the slide cylinder (62) axially slides and penetrates the inner wall of the clamping cylinder (51), and the slide rod (61) is fixedly connected to the slide cylinder (62); a support frame is provided at one end of the slide cylinder (62), and the support frame includes a connecting ring (66) coaxially arranged with the first clamp (1) and a plurality of ribs (65) arranged concentrically and radially, and the two ends of the ribs (65) are respectively connected to one end of the slide cylinder (62) and the connecting ring (66). The outer wall is fixed, a slot (316) is provided on the surface of the first suction cup (31), the cross section of the slot (316) is trapezoidal, the notch size of the slot (316) is smaller than the bottom size of the slot (316), the rib (65) is inserted into the slot (316) and forces the notch edge of the slot (316) to elastically expand outward and deform; a plurality of V-shaped spring pieces (63) evenly arranged around the circumference are fixed to the end of the slide cylinder (62) away from the support frame, a limiting ring (516) for cooperating with the V-shaped spring piece (63) is coaxially fixed to the inner wall of the clamping cylinder (51), and the cross section of the limiting ring (516) is triangular.

7. A processing technology for PPG spherical glass, characterized in that: The following steps are involved: S1, cleaning of incoming materials; S2, testing of incoming material dimensions; S3, plane grinding and cleaning of PPG spherical glass (100); S4, plane polishing of PPG spherical glass (100); S5, polishing and cleaning; S6, inspection of semi-finished products; S7, roughing of convex surface of PPG spherical glass (100); S8, fine grinding of convex surface of PPG spherical glass (100); S9, fine grinding of plane of PPG spherical glass (100); S10, coring of PPG spherical glass (100): coring of PPG spherical glass (100) is performed using the processing device for PPG spherical glass according to claim 1; S11, fine polishing of convex surface of PPG spherical glass (100); S12, fine polishing of plane of PPG spherical glass (100); S13, ultrasonic cleaning; S14, inspection of finished products; S15, packaging.

8. The processing technology of PPG spherical glass according to claim 7, characterized in that: In step S13, the cleaning liquid ratio is 1200-1500ml of detergent / 50KG of water, the cleaning liquid is ultrasonically heated to 35°-50°, and the cleaning is carried out for 4-6 minutes.

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