Positioning device capable of being used for processing special-shaped glass

Abstract

The utility model provides a positioning device for processing special-shaped glass, which comprises a cylindrical base and a supporting seat, the supporting seat is coaxially and rotatably mounted at the top end of the cylindrical base, a concave storage space is formed in the center of the top of the supporting seat, and a negative pressure adsorption component is further arranged in the storage space. The negative pressure adsorption assembly produces suction force to suck the surface of the glass; a plurality of sliding grooves are further formed in the top of the supporting base and are arranged in the radial direction of the upper surface of the supporting base, positioning assemblies are further arranged on the sliding grooves and are arranged in a sliding mode along the sliding grooves, so that the positioning assemblies can slide to the outer edge of the glass, and the elastic pieces apply elastic force towards the center position of the supporting base to the positioning assemblies. The glass positioning fixture solves the problems that an existing glass positioning fixture or glass tool is single in function and cannot meet the positioning requirement during processing of special-shaped glass, and the glass can be freely rotated to meet the processing requirement of the glass in different directions, and the processing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of glass processing, in particular to a positioning device applicable to the processing of special-shaped glass. Background Art

[0002] Optical glass is the foundation and an important part of the optoelectronic technology industry. The milling and grinding machine is one of the commonly used devices in the process of optical glass processing. During operation, the glass is fixed on the workbench through a fixture, and then the driving device drives the milling and grinding head to polish the surface or edge position of the glass, thereby realizing the grinding, chamfering or polishing processing of the glass.

[0003] Most of the existing milling and grinding machines use some fixed fixtures or fixed toolings to fix the glass, and most of them are used for glass with regular shapes. Although it is also possible to fix special-shaped glass such as non-parallelogram and non-regular polygon glass, due to the irregular shape of the special-shaped glass, the force applied by the fixture cannot be evenly applied to the glass, resulting in instability problems. And when the glass is fixed on the fixture or tooling, the position of the glass is fixed. When some parts of the glass need to be polished, the glass may need to be released from the positioning state, rotated by an angle, and repositioned before milling and grinding. This makes the process cumbersome and reduces the processing efficiency.

[0004] In summary, the existing positioning fixtures or toolings have a single function and cannot meet the positioning requirements during the processing of some special-shaped glass. And sometimes during processing, the glass needs to be readjusted and repositioned for some parts, resulting in a relatively low processing efficiency problem. Therefore, improvement is needed. Summary of the Utility Model

[0005] Aiming at the deficiencies in the prior art, the utility model provides a positioning device applicable to the processing of special-shaped glass, which solves the problems that the existing glass positioning fixtures or glass toolings have a single function and cannot meet the positioning requirements during the processing of some special-shaped glass, and sometimes during processing, the glass needs to be readjusted and repositioned for some parts, resulting in a relatively low processing efficiency problem.

[0006] According to an embodiment of the utility model, a positioning device applicable to the processing of special-shaped glass includes a cylindrical base and a support seat. The support seat is coaxially and rotatably installed at the top of the cylindrical base. An inwardly concave storage space is provided at the center of the top of the support seat, and a negative pressure adsorption component is further provided in the storage space. The negative pressure adsorption component creates suction to hold the surface of the glass.

[0007] The top of the support base is also provided with a plurality of sliding grooves, the sliding grooves are arranged radially along the upper surface of the support base, and a positioning component is also arranged on the sliding grooves, the positioning component is slidably arranged along the sliding grooves, so that the positioning component can slide to the outer edge of the glass, and an elastic member is further included, the elastic member applies an elastic force towards the center position of the support base to the positioning component.

[0008] Further, there are four sliding grooves, which are arranged equidistantly around the center of the upper surface of the support base.

[0009] Further, a rotating ring is arranged at the bottom of the support base, a ring groove is arranged at the corresponding position of the cylindrical base and the rotating ring, a ring-shaped toothed plate is also arranged around the outer side wall of the support base near the bottom, a steering gear is also rotatably arranged on the inner side wall of the cylindrical base, the steering gear is connected with the ring-shaped toothed plate by bevel gears, a rotating shaft is also connected to the center of the steering gear, and the rotating shaft extends out of the outer side wall of the base to the outside and is fixedly connected with a control wheel.

[0010] Further, the positioning component includes a slider fixedly connected to the bottom of the positioning component, the slider is slidably arranged in the sliding groove, and the positioning component controls the size range of the positioning glass through the displacement of the slider in the sliding groove.

[0011] Preferably, the negative pressure adsorption component includes a suction cup arranged at the top of the storage space and an air bag arranged below the suction cup, a trachea is also arranged at the center of the top of the air bag, the trachea extends vertically upward from the storage space and is connected to the narrowed end of the suction cup, and a counterweight plate is further included, the counterweight plate is fixedly connected to the bottom of the air bag, the positioning component further includes a pull rope, one end of the pull rope is fixedly connected to one side of the slider in the direction of displacement towards the support seat, a through channel leading to the inside of the storage space is opened on the inner wall of one end of the sliding groove close to the central axis of the support seat, the other end of the pull rope extends into the storage space along the channel and is connected to the edge of the counterweight plate, and the contraction and expansion of the air bag are controlled by pulling up or lowering the counterweight plate through the displacement of the slider.

[0012] Preferably, the elastic member is arranged between one side of the bottom of the slider and one end of the sliding groove close to the outer side of the support base, and the elastic member includes a spring.

[0013] Preferably, the positioning component further includes a support block and a positioning block rotatably connected to the support block, the support block is fixedly connected to the top of the slider, a bearing is also arranged on one side of the support block close to the center of the support base, a connecting rope is arranged on the other side, a hook is arranged at the free end of the connecting rope, a hook ring is fixedly connected to the corresponding position at the top of the cylindrical base for hooking the hook, a convex shaft is arranged at the corresponding position at the bottom of the positioning block, and the positioning block is arranged in the bearing through the convex shaft and can freely rotate on the top of the support block.

[0014] Preferably, one side of the positioning block is a V-shaped concave surface with an included angle of the V-shaped concave surface less than 180°, and the other side is a sunken inner arc curved surface.

[0015] The technical principle of the present utility model is as follows: By rotatably connecting the cylindrical base with the support seat, the support seat can freely rotate on the top of the cylindrical base. After fixing the glass with the positioning components on several chutes, the glass can be freely rotated, enabling the processing tool to grind the glass from all directions; an elastic member is arranged in the chute to apply an elastic force to the positioning components, and the suction force provided by the negative pressure adsorption component in the storage space of the support seat is used to jointly and stably control the processing state of the glass. According to the different positions of the positioning components in the chute, the positioning components on multiple chutes cooperate with each other to process glass of various sizes and shapes, solving the problem that the existing glass positioning fixtures or glass tooling have a single function and cannot meet the positioning requirements during the processing of some special-shaped glasses, and can freely rotate the glass to meet the processing requirements for different orientations of the glass, improving the glass processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of an embodiment of the present utility model.

[0017] Figure 2 It is a top view of the cylindrical base of the present utility model.

[0018] Figure 3 It is a distribution diagram of the chute and the positioning components of the present utility model.

[0019] Figure 4 It is a structural diagram of the positioning component of the present utility model.

[0020] Figure 5 It is a top view distribution diagram of the chute and the positioning components of the present utility model.

[0021] Figure 6 It is a structural diagram of the negative pressure adsorption component of the present utility model.

[0022] In the above-mentioned drawings:

[0023] 1. Cylindrical base; 11. Ring groove; 12. Steering gear; 121. Rotating shaft; 122. Control wheel;

[0024] 2. Support seat; 21. Rotating ring; 22. Annular toothed plate; 23. Chute; 24. Storage space; 25. Channel; 26. Hook ring;

[0025] 3. Positioning component; 31. Slide block; 32. Support block; 321. Connecting rope; 322. Hook; 33. Positioning block; 331. V-shaped concave surface; 332. Inner arc curved surface; 34. Convex shaft; 35. Bearing; 36. Pull rope; 37. Spring;

[0026] 4. Negative pressure adsorption assembly; 41. Suction cup; 42. Air pipe; 43. Airbag; 44. Counterweight plate. Specific embodiments

[0027] The technical solutions in the present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0028] As Figure 1 shown, an embodiment of the present utility model provides a positioning device that can be used for processing special-shaped glass, including a cylindrical base 1 and a support base 2. The support base 2 is coaxially and rotatably installed at the top of the cylindrical base 1. An inwardly concave storage space 24 is provided at the center of the top of the support base 2. A negative pressure adsorption assembly 4 is further provided in the storage space 24, and the negative pressure adsorption assembly 4 creates suction to hold the surface of the glass.

[0029] A plurality of sliding grooves 23 are further provided at the top of the support base 2. The sliding grooves 23 are arranged radially along the upper surface of the support base 2. A positioning assembly 3 is further provided on the sliding grooves 23. The positioning assembly 3 is slidably arranged along the sliding grooves 23, so that the positioning assembly 3 can slide to the outer edge of the glass. An elastic member is further included, and the elastic member applies an elastic force towards the center position of the support base 2 to the positioning assembly 3.

[0030] By rotatably connecting the cylindrical base 1 and the support base 2, the support base 2 can freely rotate at the top of the cylindrical base 1. After the glass is fixed by the positioning assembly 3 on a plurality of sliding grooves 23, the glass can be freely rotated, allowing the processing tool to grind the glass from all directions. An elastic member is arranged in the sliding grooves 23 to apply an elastic force to the positioning assembly 3, and the suction force provided by the negative pressure adsorption assembly 4 in the storage space 24 of the support base 2 is used to jointly and stably control the processing state of the glass. According to the different positions of the positioning assembly 3 in the sliding grooves 23, the positioning assemblies 3 on a plurality of sliding grooves 23 cooperate with each other to process glass of various sizes and shapes.

[0031] Further, as Figure 3 and Figure 5 shown, four sliding grooves 23 are provided and are equidistantly arranged around the center of the upper surface of the support base 2. The four sliding grooves 23 can stabilize the glass from four angles.

[0032] Further, as Figure 1 and Figure 2As shown, a rotating ring 21 is provided at the bottom of the support base 2, and a ring groove 11 is provided at the corresponding position on the cylindrical base 1 for the rotating ring 21. By the mutual engagement of the rotating ring 21 and the ring groove 11, the support base 2 can rotate on its own. An annular toothed plate 22 is also provided around the outer wall of the support base 2 near the bottom. A steering gear 12 is rotatably provided on the inner wall of the cylindrical base 1. The steering gear 12 is bevel-geared to the annular toothed plate 22 to change the transmission direction of the gear. The center of the steering gear 12 is also connected to a rotating shaft 121. The rotating shaft 121 extends out of the outer wall of the base to the outside and is fixedly connected to a control wheel 122, so that the rotation of the support base 2 can be controlled manually or electrically from the side.

[0033] Further, as Figure 1 、 Figure 3 and Figure 4 The positioning assembly 3 includes a slider 31 fixedly connected to the bottom of the positioning assembly 3. The slider 31 is slidably disposed in a chute 23. The positioning assembly 3 controls the size range of the positioning glass through the displacement of the slider 31 in the chute 23. When the positioning assembly 3 fixes the glass, different-shaped glasses can be fixed by the sliders 31 of each positioning assembly 3 at different positions in the chute 23.

[0034] Preferably, as Figure 1 、 Figure 4 and Figure 5 and Figure 6 shown, the negative pressure adsorption assembly 4 includes a suction cup 41 provided at the top of the storage space 24 and an airbag 43 provided below the suction cup 41. A trachea 42 is also provided at the center of the top of the airbag 43. The trachea 42 extends vertically upward from the storage space 24 and is connected to the narrowed end of the suction cup 41. It also includes a counterweight plate 44. The counterweight plate 44 is fixedly connected to the bottom of the airbag 43;

[0035] The positioning assembly 3 also includes a pull rope 36. One end of the pull rope 36 is fixedly connected to one side of the slider 31 in the displacement direction towards the support base 2. A channel that penetrates into the storage space 24 is opened on the inner wall of one end of the chute 23 near the central axis of the support base 2. The horizontal height of the channel 25 is not lower than the highest height after the counterweight plate 44 is lifted. The other end of the pull rope 36 extends into the storage space 24 along the channel 25 and is connected to the edge of the counterweight plate 44, and the contraction and expansion of the airbag 43 are controlled by pulling up or lowering the counterweight plate 44 through the displacement of the slider 31 to drive the pull rope 36.

[0036] As Figure 1 、 Figure 5 and Figure 6As shown in the figure, when it is necessary to fix the glass, each positioning component 3 is controlled and slid to the other end of the chute 23. The glass is placed on the suction cup 41. At the same time, since multiple pull ropes 36 are pulled, and because the horizontal height of the channel is not lower than the maximum height at which the counterweight plate can be lifted, when the pull ropes 36 in all directions apply a pulling force to the counterweight plate 44, the counterweight plate 44 is lifted. The airbag 43 contracts under the extrusion of the counterweight plate 44, and the air is discharged from the contact position between the not yet fully fixed glass and the suction cup 41. At this time, the positioning component 3 is slowly released. Under the action of the elastic member, the positioning component 3 displaces towards the center of the support base 2 and clamps the glass after contacting the glass. After the pull rope 36 becomes loose, the counterweight plate 44 drops, and at the same time the airbag 43 begins to expand and inhale. However, because the suction cup 41 is in contact with the glass surface, air cannot quickly enter the airbag 43 from the contact position. Thus, the contact position between the glass surface and the suction cup 41 is sealed, and the glass is sucked by negative pressure, cooperating with the positioning component 3 to achieve a double-stable glass state.

[0037] Preferably, as Figure 1 and Figure 4 shown, the elastic member is arranged between one side of the bottom of the slider 31 and one end of the chute 23 close to the outer side of the support base 2. The elastic member is a spring 37. The cost of the spring 37 is relatively low, and the elastic force provided can meet the rebound requirements of the positioning component 3.

[0038] Preferably, as Figure 1 、 Figure 3 and Figure 4 as well as Figure 5 shown, the positioning component 3 further includes a support block 32 and a positioning block 33 rotatably connected to the support block 32. The support block 32 is fixedly connected to the top of the slider 31. One side of the support block 32 close to the center of the support base 2 is also provided with a bearing 35, and the other side is provided with a connecting rope 321. The free end of the connecting rope 321 is also provided with a hook 322. A hook ring 26 is fixedly connected to the corresponding position at the top of the cylindrical base 1 for hooking the hook 322. Through the above mechanism, after the positioning component 3 is slid to the other end of the chute, as Figure 1 、 Figure 3 and Figure 5 shown, the hook 322 on the connecting rope 321 can be used to hook the hook ring 26 at the corresponding position at the bottom of the cylindrical base 1, so that the position of the positioning component 3 can be temporarily fixed. Then, after the glass is placed on the negative pressure adsorption component 4, the fixing of two opposite positioning components 3 can be released in sequence. By loosening the connection between the hook 322 and the hook ring 26, the positioning component 3 returns to its original position under the action of the elastic force, thereby cooperating with the negative pressure adsorption component 4 to stably control the glass.

[0039] As Figure 4 、 Figure 5As shown, a convex shaft 34 is provided at the corresponding position at the bottom of the positioning block 33. The positioning block 33 is arranged in the bearing 35 through the convex shaft 34 and can rotate freely on the top of the support block 32. One side of the positioning block 33 is a V-shaped concave surface 331, and the included angle of the V-shaped concave surface 331 is less than 180°. The other side is a sunken inner arc surface 332. Sometimes the edges of glass with different shapes are uneven. The rotatable positioning block 33 can better adapt to the shape of the glass. By choosing to set different docking surfaces on both sides of the positioning block 33, the glass shape fixed by the positioning block 33 can be more comprehensive. The V-shaped concave surface 331 can handle straight edges, while the inner arc surface 332 can handle curved edges.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A positioning device that can be used for processing special-shaped glass, characterized in that: It includes a cylindrical base and a support base, wherein the support base is coaxially rotatably mounted on the top of the cylindrical base, a concave storage space is provided at the center of the top of the support base, and a negative pressure adsorption component is provided in the storage space, and the negative pressure adsorption component generates suction to absorb the surface of the glass; The top of the support seat is also provided with a plurality of slide grooves, which are radially arranged along the upper surface of the support seat. A positioning assembly is also provided on the slide groove, and the positioning assembly is slidably arranged along the slide groove so that the positioning assembly can slide to the outer edge of the glass. It also includes an elastic member, which applies an elastic force to the positioning assembly toward the center position of the support seat.

2. A positioning device for processing special-shaped glass as claimed in claim 1, characterized in that: The slide grooves are provided with four and are arranged equidistantly around the center of the upper surface of the support seat.

3. A positioning device for processing special-shaped glass as claimed in claim 1, characterized in that: A rotating ring is provided at the bottom of the support seat, and a ring groove is provided on the cylindrical base at a position corresponding to the rotating ring. An annular gear plate is also provided on the outer wall of the support seat close to the bottom, and a steering gear is rotatably provided on the inner wall of the cylindrical base. The steering gear is connected to the annular gear plate bevel gear, and a rotating shaft is also connected to the center of the steering gear. The rotating shaft extends out of the outer wall of the base and is fixedly connected to a control wheel.

4. A positioning device for processing special-shaped glass as claimed in claim 1, characterized in that: The positioning assembly comprises a sliding block fixedly connected to the bottom of the positioning assembly, and the sliding block is slidably arranged in a sliding groove.

5. A positioning device for processing special-shaped glass as claimed in claim 4, characterized in that: The negative pressure adsorption component includes a suction cup arranged at the top of the storage space and an air bag arranged below the suction cup. An air tube is also provided at the top center of the air bag. The air tube extends vertically upward from the storage space and is connected to the narrowed end of the suction cup. It also includes a counterweight plate, which is fixedly connected to the bottom of the air bag. The positioning component also includes a pull rope, one end of which is fixedly connected to one side of the slider in the direction of displacement of the support seat. A channel that passes through the storage space is opened on the inner wall of one end of the slide groove close to the central axis of the support seat. The other end of the pull rope extends along the channel into the storage space and is connected to the edge of the counterweight plate. The pull rope is driven by the displacement of the slider to pull up or lower the counterweight plate to control the contraction and expansion of the air bag.

6. A positioning device for processing special-shaped glass as claimed in claim 4, characterized in that: The elastic member is arranged between one side of the bottom of the sliding block and one end of the sliding groove close to the outer side of the supporting seat, and the elastic member includes a spring.

7. A positioning device for processing special-shaped glass as claimed in claim 4, characterized in that: The positioning assembly also includes a support block and a positioning block rotatably connected to the support block, the support block is fixedly connected to the top of the slider, a bearing is provided on one side of the support block close to the center of the support seat, and a connecting rope is provided on the other side, a hook is provided at the free end of the connecting rope, a hook ring is fixedly connected to the corresponding position of the top of the cylindrical base for hooking the hook, a cam is provided at the corresponding position of the bottom of the positioning block, and the positioning block is arranged in the bearing through the cam and can rotate freely on the top of the support block.

8. A positioning device for processing special-shaped glass as claimed in claim 7, characterized in that: One side of the positioning block is a V-shaped concave surface, the angle of the V-shaped concave surface is less than 180 degrees, and the other side is a concave inner arc surface.

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