A spherical detection fixture for optical components

Abstract

The invention discloses a spherical detection fixture for optical elements, which relates to the field of infrared optical technology, and comprises a clamping mechanism, wherein an optical glass lens is arranged above the clamping mechanism, and the clamping mechanism comprises: a fixed base, wherein the fixed base is a square block structure, and an arc-shaped clamping placement plate is arranged on the top of the fixed base, which relates to the field of infrared optical technology. By arranging the clamping mechanism, an elastic sealing cushion can seal the gap between the optical glass lens and the negative pressure exhaust hole to complete the placement and support of the optical glass lens, and realize the stable clamping of the optical glass lens by uniform negative pressure adsorption of several negative pressure exhaust holes, thereby avoiding the problem of excessive pressure at some positions that are easy to deform and break due to conventional single-point or multi-point clamping, and at the same time, a certain buffer is given to the optical glass lens through the elastic sealing cushion, thereby reducing the problem of partial extrusion damage when the optical glass lens is adsorbed and clamped.

Description

Technical Field

[0001] The invention relates to the field of infrared optical technology, in particular to a spherical detection fixture for optical elements. Background Art

[0002] Optical parts, also known as optical elements. The basic building blocks of optical systems. Most optical parts play the role of imaging, such as lenses, prisms, reflectors, etc. In addition, there are some parts that play special roles in optical systems (such as splitting, image transmission, filtering, etc.), such as reticles, filters, gratings for optical fiber parts, etc. Holographic lenses, gradient refractive index lenses, binary optical elements, etc. are new optical parts that have appeared in the past ten or twenty years. Lenses are an optical element made of transparent materials (such as glass, crystal, etc.). Convex lens: thick in the middle and thin at the edges, there are three types: biconvex, plano-convex, and concave-convex; concave lens: thin in the middle and thick at the edges, there are three types: biconcave, plano-concave, and convex-concave. Lenses play an important role in astronomy, military, transportation, medicine, art and other fields;

[0003] An optical element spherical shape detection fixture described in the patent application with announcement number CN213748748U comprises a support block, a bottom plate, a connecting rod and a limit rod, wherein two connecting rods are provided, and a movable rod and a long fixed rod are respectively welded to the lower side of one end of the two connecting rods, and a bearing is fixed to one end of each of the two connecting rods, and a first connecting block and a second connecting block are respectively fixed to the ends of the two bearings away from the connecting rods, and a limit block is fixed to the outer annular array of the second connecting block, and a fixed block is fixed to the middle of the upper end of the connecting rod on one side of the second connecting block, and there are two fixed blocks in total, and a rotating shaft is fixed to the middle of the two fixed blocks;

[0004] Currently, when inspecting the lens of an optical component, it is necessary to clamp it. The cross-section of most lenses is spherical. Therefore, when the lens is clamped by a clamp, the contact clamping point is the tangent point on the arc surface. The clamping of this tangent point will cause a certain degree of pressure at the clamping position, which can easily cause deformation and damage to the lens of the optical component. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a spherical detection fixture for an optical element, which achieves the purpose of solving the above-mentioned problems.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an optical element spherical detection fixture, comprising a clamping mechanism, an optical glass lens is arranged above the clamping mechanism;

[0007] The clamping mechanism comprises:

[0008] A fixed base, the fixed base is a square block structure, an arc-shaped clamping and placing plate is arranged on the top of the fixed base, the optical glass lens is arranged on the top of the arc-shaped clamping and placing plate, and the fixed base is used to support the arc-shaped clamping and placing plate;

[0009] The counterweight block connecting plate is a plate-like structure, one side of the counterweight block connecting plate is fixedly connected to the outer wall of the arc-shaped clamping and placing plate, the outer wall of the arc-shaped clamping and placing plate is fixedly connected with an external connecting air pipe, the external connecting air pipe is used to act as an external pipeline, the surface of the arc-shaped clamping and placing plate is provided with negative pressure exhaust holes, and the counterweight block connecting plate is used to counterweight and balance the external connecting air pipe.

[0010] Preferably, the interior of the external connecting air pipe is connected to the interior of the arc-shaped clamping and placing plate, and the interior of the arc-shaped clamping and placing plate is connected to the interior of the negative pressure exhaust hole, and the negative pressure exhaust hole is used to play the role of negative pressure adsorption of the optical glass lens.

[0011] Preferably, an elastic sealing cushion is fixedly connected to the top of the arc-shaped clamping and placing plate, the elastic sealing cushion is made of rubber material, and the elastic sealing cushion is used to play a buffering role for the optical glass lens.

[0012] Preferably, an arc-shaped sliding groove is provided on the outer wall of the arc-shaped clamping and placing plate, and the arc-shaped clamping and placing plate is slidably connected to the inner wall of the fixed base through the arc-shaped sliding groove. The arc-shaped clamping and placing plate is a semicircular ring structure, and the arc-shaped clamping and placing plate is used to place an optical glass lens. The elastic sealing cushion is a semicircular ring structure, and the arc-shaped sliding groove is a semicircular ring groove. The external connecting air pipe has the same weight as the counterweight block connecting plate. There are two arc-shaped sliding grooves, and the two arc-shaped sliding grooves are distributed on the front and back of the arc-shaped clamping and placing plate.

[0013] Preferably, an adjustment mechanism is provided inside the fixed base, and the adjustment mechanism includes a rectangular empty groove, and the rectangular empty groove is opened in the inner wall of the fixed base. The inner wall of the elastic sealing cushion is fixedly connected to a fixed sliding bar, and the inner wall of the rectangular empty groove is slidably connected to an internal threaded sleeve through the fixed sliding bar. The inner wall of the internal threaded sleeve is threadedly connected to an external threaded rod, and one end of the external threaded rod is fixedly connected to a lifting and sliding block.

[0014] Preferably, the outer wall of the lifting sliding block is slidably connected to the inner wall of the arc-shaped sliding slot, one end of the external threaded rod is fixedly connected to a knob round block, and a buckle is provided between the internal threaded sleeve and the fixed sliding bar.

[0015] Preferably, a self-inspection mechanism is provided inside the negative pressure exhaust hole, and the self-inspection mechanism includes a fixed sliding sleeve, the inner wall of the fixed sliding sleeve is slidably connected to a lifting sliding rod, the inner wall of the fixed sliding sleeve is provided with a built-in spring, one end of the built-in spring is fixedly connected to the inner wall of the fixed sliding sleeve, and the other end of the built-in spring is fixedly connected to one end of the lifting sliding rod.

[0016] Preferably, the outer wall of the fixed sliding sleeve is fixedly connected with a long fixed rod, one end of the long fixed rod is fixedly connected to the inner wall of the negative pressure exhaust hole, the fixed sliding strip is used to limit the vertical sliding of the internal threaded sleeve, the lifting sliding block is used to extend into the arc-shaped sliding groove to play a role of limiting sliding, and the internal threaded sleeve is used to allow the external threaded rod to rotate on its inner wall thread to play a role of horizontal movement.

[0017] The present invention provides a spherical detection fixture for optical components, which has the following beneficial effects:

[0018] 1. The present invention sets a clamping mechanism, and the elastic sealing cushion can be deformed to seal the gap between the optical glass lens and the negative pressure exhaust hole, so as to complete the placement and support of the optical glass lens, and realizes the stable clamping of the optical glass lens by uniform negative pressure adsorption of several negative pressure exhaust holes, thereby avoiding the problem of excessive pressure and easy deformation and damage in some positions caused by conventional single-point or multi-point clamping. At the same time, the elastic sealing cushion also provides a certain buffer for the optical glass lens, thereby reducing the problem of partial extrusion damage when the optical glass lens is adsorbed and clamped.

[0019] 2. The present invention provides a clamping mechanism, so that the staff can rotate the arc-shaped clamping and placing plate. The arc-shaped clamping and placing plate slides in the inner wall of the fixed base through the arc-shaped sliding groove, so that the arc-shaped clamping and placing plate can rotate synchronously with the clamped optical glass lens. After clamping the optical glass lens, the rotating arc-shaped clamping and placing plate can be adjusted in real time according to different detection angles and detection methods to adjust the rotation angle of the optical glass lens, so as to adapt to the optical detection work of different positions and angles of the optical glass lens.

[0020] 3. The present invention sets a clamping mechanism. When optical glass lenses of different specified specifications are subjected to optical inspection, the arc-shaped clamping placement plate on the fixed base can be replaced with the corresponding specifications, so that the arc-shaped clamping placement plate of the corresponding specifications can be adapted to the corresponding optical glass lens, thereby ensuring stable and uniform adsorption and clamping work, and protecting the high-precision optical glass lens from damage during optical inspection as much as possible.

[0021] 4. The present invention sets a clamping mechanism. By setting the clamping mechanism, it is observed whether the positions of the left and right ends of the arc-shaped clamping plate are at the same horizontal position to determine whether the clamped optical glass lens has an internal quality unevenness problem. If the arc-shaped clamping plate is originally in a stable horizontal state, once clamped, the arc-shaped clamping plate shifts, which means that the quality distribution inside the optical glass lens is uneven, or the clamping angle is shifted, thereby completing the self-inspection function of the clamping work and the quality of the optical glass lens itself.

[0022] 5. The present invention is equipped with an adjustment mechanism to adapt to the curvature of different arc-shaped sliding grooves on different arc-shaped clamping and placing plates, ensuring that even when arc-shaped clamping and placing plates of different specifications are fixed, they can still be stably rotated and swayed in the fixed base, and the method of replacing the arc-shaped clamping and placing plates is quick and simple, ensuring accurate clamping of the optical glass lens while facilitating operation.

[0023] 6. The present invention provides a self-checking mechanism to facilitate the staff to quickly detect the clamping and adsorption state of the optical glass lens, thereby avoiding the situation where the optical glass lens appears to be placed on the arc-shaped clamping and placement plate and adsorbed, but in fact the optical glass lens does not completely cover the negative pressure exhaust hole due to the problem of placement operation angle deviation, resulting in loose clamping, thereby realizing the self-checking function of the clamping and adsorption of the optical glass lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the present invention;

[0025] Figure 2 The disassembled structure of the clamping mechanism of the present invention is shown in FIG. Figure 1 ;

[0026] Figure 3 The disassembled structure of the clamping mechanism of the present invention is shown in FIG. Figure 2 ;

[0027] Figure 4 It is a structural schematic diagram of the arc-shaped clamping and placing plate of the present invention;

[0028] Figure 5 This is a schematic diagram of the structure of a rectangular empty slot of the present invention;

[0029] Figure 6 The motion state of the clamping mechanism of the present invention is shown in FIG. Figure 1 ;

[0030] Figure 7 The structure diagram of the adjustment mechanism of the present invention is shown in FIG. Figure 1 ;

[0031] Figure 8 For the present invention Figure 5A magnified image of point A;

[0032] Fig. 9 The structure diagram of the adjustment mechanism of the present invention is shown in FIG. Figure 2 ;

[0033] Fig.10 For the present invention Figure 4 Enlarged view of point B.

[0034] In the figure: 1 optical glass lens, 2 clamping mechanism, 201 fixed base, 202 arc-shaped clamping placement plate, 203 external connection air pipe, 204 counterweight block connecting plate, 205 arc-shaped sliding slot, 206 negative pressure exhaust hole, 207 elastic sealing cushion, 3 adjustment mechanism, 301 knob round block, 302 external threaded rod, 303 internal threaded sleeve, 304 lifting and sliding block, 305 fixed sliding bar, 307 rectangular empty slot, 4 self-inspection mechanism, 401 fixed sliding sleeve, 402 lifting and sliding rod, 403 long fixed rod. DETAILED DESCRIPTION

[0035] Example 1: Please refer to Figure 1-6 , the present invention provides a technical solution: an optical element spherical detection fixture, comprising a clamping mechanism 2, an optical glass lens 1 is arranged above the clamping mechanism 2;

[0036] The clamping mechanism 2 comprises:

[0037] A fixed base 201, which is a square block structure, is provided with an arc-shaped clamping and placing plate 202 on the top of the fixed base 201, and the optical glass lens 1 is provided on the top of the arc-shaped clamping and placing plate 202, and the fixed base 201 is used to support the arc-shaped clamping and placing plate 202;

[0038] The counterweight block connecting plate 204 is a plate-like structure, one side of the counterweight block connecting plate 204 is fixedly connected to the outer wall of the arc-shaped clamping and placing plate 202, the outer wall of the arc-shaped clamping and placing plate 202 is fixedly connected with an external connecting air pipe 203, the external connecting air pipe 203 is used to act as an external pipeline, and a negative pressure exhaust hole 206 is opened on the surface of the arc-shaped clamping and placing plate 202. The counterweight block connecting plate 204 is used for counterweighting and balancing the external connecting air pipe 203.

[0039] The interior of the external connecting air pipe 203 is connected to the interior of the arc-shaped clamping and placing plate 202 , and the interior of the arc-shaped clamping and placing plate 202 is connected to the interior of the negative pressure exhaust hole 206 . The negative pressure exhaust hole 206 is used to play the role of negative pressure adsorption of the optical glass lens 1 .

[0040] An elastic sealing cushion 207 is fixedly connected to the top of the arc-shaped clamping and placing plate 202 . The elastic sealing cushion 207 is made of rubber and is used to buffer the optical glass lens 1 .

[0041] The outer wall of the arc-shaped clamping and placing plate 202 is provided with an arc-shaped sliding slot 205, and the arc-shaped clamping and placing plate 202 is slidably connected to the inner wall of the fixed base 201 through the arc-shaped sliding slot 205. The arc-shaped clamping and placing plate 202 is a semicircular ring structure, and the arc-shaped clamping and placing plate 202 is used to place the optical glass lens 1. The elastic sealing cushion 207 is a semicircular ring structure, and the arc-shaped sliding slot 205 is a semicircular ring groove. The external connecting air pipe 203 has the same weight as the counterweight block connecting plate 204. There are two arc-shaped sliding slots 205, and the two arc-shaped sliding slots 205 are distributed on the front and back of the arc-shaped clamping and placing plate 202;

[0042] When in use, various types of visible light are used to penetrate and detect the optical glass lens 1. When the optical glass lens 1 with a spherical cross section needs to be clamped, the optical glass lens 1 is placed on an arc-shaped clamping placement plate 202 of a specified matching specification, and then connected to the external connecting air pipe 203 through an external air pump and an air pump tube. By starting the air pump, the inside of the external connecting air pipe 203 is evacuated;

[0043] The external connecting air pipe 203 is connected to the inside of the negative pressure exhaust hole 206 through the arc-shaped clamping placement plate 202. When the air pump exhausts air into the external connecting air pipe 203, the air inside the negative pressure exhaust hole 206 and the arc-shaped clamping placement plate 202 will be extracted. As a result, when the optical glass lens 1 is attached to the negative pressure exhaust holes 206, the air pressure inside the arc-shaped clamping placement plate 202 and the negative pressure exhaust holes 206 is lower than the external air pressure, and the negative pressure formed can firmly suck the optical glass lens 1 to the elastic sealing cushion 207 on the inner wall of the arc-shaped clamping placement plate 202, and the elastic sealing cushion 207 can be deformed to achieve The gap between the optical glass lens 1 and the negative pressure exhaust hole 206 is sealed, so that the arc-shaped clamping and placing plate 202 that fits the arc-shaped surface of the optical glass lens 1 is used to complete the placement and support of the optical glass lens 1, and the uniform negative pressure adsorption of the negative pressure exhaust holes 206 is used to achieve a stable clamping effect on the optical glass lens 1, thereby avoiding the problem of excessive pressure and easy deformation and damage at some positions caused by conventional single-point or multi-point clamping. At the same time, the elastic sealing cushion 207 is also used to give the optical glass lens 1 a certain buffer, thereby reducing the problem of partial extrusion damage when the optical glass lens 1 is adsorbed and clamped;

[0044] After the optical glass lens 1 is clamped stably and evenly by negative pressure adsorption, during the detection period, when the light beam passes through the optical glass lens 1 to complete the detection, the staff can rotate the arc clamping and placing plate 202, and the arc clamping and placing plate 202 slides in the inner wall of the fixed base 201 through the arc sliding groove 205, so that the arc clamping and placing plate 202 can rotate synchronously with the clamped optical glass lens 1, which can be convenient for adjusting the rotation angle of the optical glass lens 1 by rotating the arc clamping and placing plate 202 in real time according to different detection angles and detection methods after clamping the optical glass lens 1, so as to adapt to the optical detection work of the optical glass lens 1 at different positions and angles;

[0045] When optical glass lenses 1 of different specified specifications are optically inspected, the arc-shaped clamping and placing plates 202 on the fixed base 201 can be replaced with corresponding specifications, so that the arc-shaped clamping and placing plates 202 of corresponding specifications can be adapted to the corresponding optical glass lenses 1, thereby ensuring stable and uniform adsorption and clamping work, and protecting the high-precision optical glass lenses 1 from damage during optical inspection as much as possible;

[0046] Example 2: Please refer to Figure 1-9 On the basis of the first embodiment, the present invention provides a technical solution: an adjustment mechanism 3 is arranged inside the fixed base 201, and the adjustment mechanism 3 includes a rectangular empty groove 307, and the rectangular empty groove 307 is opened in the inner wall of the fixed base 201. The inner wall of the elastic sealing cushion 207 is fixedly connected with a fixed sliding bar 305, and the inner wall of the rectangular empty groove 307 is slidably connected with an internal threaded sleeve 303 through the fixed sliding bar 305. The inner wall of the internal threaded sleeve 303 is threadedly connected with an external threaded rod 302, and one end of the external threaded rod 302 is fixedly connected with a lifting sliding block 304.

[0047] The outer wall of the lifting sliding block 304 is slidably connected to the inner wall of the arc-shaped sliding slot 205, one end of the external thread rod 302 is fixedly connected to the knob round block 301, and a buckle is provided between the internal thread sleeve 303 and the fixed sliding bar 305;

[0048] When replacing the arc-shaped clamping and placing plate 202, the outer threaded rod 302 is driven to rotate and slide out on the inner wall of the inner threaded sleeve 303 by rotating the knob round block 301, so that the lifting and sliding block 304 at one end of the outer threaded rod 302 is disengaged from the inner wall of the arc-shaped sliding groove 205, and then the three lifting and sliding blocks 304 on the front and back sides of the arc-shaped clamping and placing plate 202 are no longer embedded in the arc-shaped sliding groove 205. At this time, the arc-shaped clamping and placing plate 202 is taken out and replaced with another arc-shaped clamping and placing plate. The arc-shaped clamping and placing plate 202 is placed into the arc-shaped clamping and placing plate 202, and the middle knob round block 301 is rotated first, so that the external threaded rod 302 pushes the lifting and sliding card block 304 to be clamped into the arc-shaped sliding card slot 205, and then the lifting and sliding card blocks 304 on both sides are adjusted and clamped into the arc-shaped sliding card slot 205 of the arc-shaped clamping and placing plate 202, and the lifting and sliding card blocks 304 on both sides are kept at the same horizontal height, thereby completing the fixation of another specification of the arc-shaped clamping and placing plate 202;

[0049] A buckle is provided between the internal thread sleeve 303 and the fixed sliding bar 305, so that the internal thread sleeve 303 can be fixed at a certain height of the fixed sliding bar 305, thereby completing the fixation of the internal thread sleeve 303;

[0050] The knob block 301 can be pushed up and down, so that the knob block 301 can drive the external thread rod 302 and the internal thread sleeve 303 to move up and down at the fixed sliding bar 305, so that the three lifting sliding blocks 304 can freely extend into the arc sliding slot 205 in the specified arc clamping and placing plate 202, so as to adapt to the curvature of the different arc sliding slots 205 on the arc clamping and placing plates 202, so as to ensure that even when the arc clamping and placing plates 202 of different specifications are fixed, they can still be stably rotated and swung in the fixed base 201, and the method of replacing the arc clamping and placing plates 202 is quick and simple, which ensures that the optical glass lens 1 is clamped accurately and is also easy to operate;

[0051] When the arc-shaped clamping plate 202 has finished clamping the optical glass lens 1, it can be judged whether the clamped optical glass lens 1 has an internal quality unevenness problem by observing whether the positions of the left and right ends of the arc-shaped clamping plate 202 are at the same horizontal position. If the arc-shaped clamping plate 202 is originally in a stable horizontal state, once it is clamped, the arc-shaped clamping plate 202 is offset, which means that the quality distribution inside the optical glass lens 1 is uneven, or the clamping angle is offset, so that the clamping work and the quality of the optical glass lens 1 itself can be completed. Self-inspection function;

[0052] Example 3: Please refer to Figure 1-10On the basis of Embodiment 1 and Embodiment 2, the present invention provides a technical solution: a self-inspection mechanism 4 is arranged inside the negative pressure exhaust hole 206, and the self-inspection mechanism 4 includes a fixed sliding sleeve 401, and the inner wall of the fixed sliding sleeve 401 is slidably connected with a lifting sliding rod 402, and the inner wall of the fixed sliding sleeve 401 is provided with a built-in spring, one end of the built-in spring is fixedly connected to the inner wall of the fixed sliding sleeve 401, and the other end of the built-in spring is fixedly connected to one end of the lifting sliding rod 402.

[0053] The outer wall of the fixed sliding sleeve 401 is fixedly connected with a long fixed rod 403, one end of which is fixedly connected to the inner wall of the negative pressure exhaust hole 206, the fixed sliding strip 305 is used to limit the internal thread sleeve 303 to slide vertically, the lifting sliding block 304 is used to extend into the arc-shaped sliding slot 205 to limit the sliding, and the internal thread sleeve 303 is used to give the external thread rod 302 a threaded rotation on its inner wall to achieve horizontal movement;

[0054] When the optical glass lens 1 is placed on the arc-shaped clamping placement plate 202, the bottom of the optical glass lens 1 will first contact the top of the lifting sliding rod 402 and push the lifting sliding rod 402, so that the lifting sliding rod 402 is pushed into the inner wall of the fixed sliding sleeve 401 and squeezes the built-in spring between the inner wall of the fixed sliding sleeve 401 and the lifting sliding rod 402, until the bottom of the optical glass lens 1 is completely in contact with the elastic sealing cushion 207 and is adsorbed by the negative pressure in the negative pressure exhaust hole 206, so that during adsorption, each lifting sliding rod 402 in the negative pressure exhaust hole 206 will push the optical glass lens 1 back with the elastic force of the built-in spring, so that the optical glass lens 1 is pushed by several lifting sliding rods. The movable rod 402 is pushed slightly. If the clamping and adsorption position is offset and the adsorption force is insufficient, the optical glass lens 1 will be pushed out by the lifting and sliding rods 402. If the clamping is relatively tight, several lifting and sliding rods 402 cannot push out the optical glass lens 1, thereby facilitating the staff to quickly detect the clamping and adsorption state of the optical glass lens 1, thereby avoiding the situation where the optical glass lens 1 appears to be placed on the arc-shaped clamping placement plate 202 and is adsorbed, but in fact the optical glass lens 1 does not completely cover the negative pressure exhaust hole 206 due to the problem of the placement operation angle offset, resulting in loose clamping, thereby realizing the self-inspection function of the clamping and adsorption of the optical glass lens 1.

[0055] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A spherical shape detection fixture for an optical element, comprising a clamping mechanism (2), characterized in that: An optical glass lens (1) is arranged above the clamping mechanism (2); The clamping mechanism (2) comprises: A fixed base (201), the fixed base (201) being a square block structure, a curved clamping and placing plate (202) being arranged on the top of the fixed base (201), the optical glass lens (1) being arranged on the top of the curved clamping and placing plate (202), and the fixed base (201) being used to support the curved clamping and placing plate (202); A counterweight block connecting plate (204), the counterweight block connecting plate (204) being a plate-shaped structure, one side of the counterweight block connecting plate (204) being fixedly connected to the outer wall of the arc-shaped clamping and placing plate (202), the outer wall of the arc-shaped clamping and placing plate (202) being fixedly connected with an external connecting air pipe (203), the external connecting air pipe (203) being used to function as an external pipeline, a negative pressure exhaust hole (206) being provided on the surface of the arc-shaped clamping and placing plate (202), the counterweight block connecting plate (204) being used to counterweight and function to balance the external connecting air pipe (203); An elastic sealing cushion (207) is fixedly connected to the top of the arc-shaped clamping and placing plate (202); the elastic sealing cushion (207) is made of rubber and is used to provide a buffer for the optical glass lens (1); The interior of the external connecting air pipe (203) is connected to the interior of the arc-shaped clamping and placing plate (202), and the interior of the arc-shaped clamping and placing plate (202) is connected to the interior of the negative pressure exhaust hole (206), and the negative pressure exhaust hole (206) is used to play a role in negative pressure adsorption of the optical glass lens (1); An arc-shaped sliding slot (205) is provided on the outer wall of the arc-shaped clamping and placing plate (202); the arc-shaped clamping and placing plate (202) is slidably connected to the inner wall of the fixed base (201) via the arc-shaped sliding slot (205); the arc-shaped clamping and placing plate (202) is a semicircular ring structure; the arc-shaped clamping and placing plate (202) is used to place an optical glass lens (1); the elastic sealing cushion (207) is a semicircular ring structure; the arc-shaped sliding slot (205) is a semicircular ring groove; the external connecting air pipe (203) and the counterweight block connecting plate (204) have the same weight; there are two arc-shaped sliding slots (205), which are distributed on the front and back sides of the arc-shaped clamping and placing plate (202).

2. The optical element spherical shape detection fixture according to claim 1, characterized in that: An adjustment mechanism (3) is provided inside the fixed base (201), the adjustment mechanism (3) comprising a rectangular hollow groove (307), the rectangular hollow groove (307) being formed in the inner wall of the fixed base (201), the inner wall of the elastic sealing cushion (207) being fixedly connected to a fixed sliding bar (305), the inner wall of the rectangular hollow groove (307) being slidably connected to an internal threaded sleeve (303) via the fixed sliding bar (305), the inner wall of the internal threaded sleeve (303) being threadedly connected to an external threaded rod (302), and one end of the external threaded rod (302) being fixedly connected to a lifting sliding block (304).

3. The optical element spherical shape detection fixture according to claim 2, characterized in that: The outer wall of the lifting sliding block (304) is slidably connected to the inner wall of the arc-shaped sliding slot (205); one end of the external threaded rod (302) is fixedly connected to a knob round block (301); and a buckle is provided between the internal threaded sleeve (303) and the fixed sliding bar (305).

4. The optical element spherical shape detection fixture according to claim 3, characterized in that: A self-checking mechanism (4) is arranged inside the negative pressure exhaust hole (206), and the self-checking mechanism (4) comprises a fixed sliding sleeve (401), the inner wall of the fixed sliding sleeve (401) is slidably connected to a lifting sliding rod (402), and the inner wall of the fixed sliding sleeve (401) is provided with a built-in spring, one end of the built-in spring is fixedly connected to the inner wall of the fixed sliding sleeve (401), and the other end of the built-in spring is fixedly connected to one end of the lifting sliding rod (402).

5. The optical element spherical shape detection fixture according to claim 4, characterized in that: The outer wall of the fixed sliding sleeve (401) is fixedly connected to a long fixed rod (403), one end of the long fixed rod (403) is fixedly connected to the inner wall of the negative pressure exhaust hole (206), the fixed sliding strip (305) is used to limit the internal thread sleeve (303) to slide vertically, the lifting sliding block (304) is used to extend into the arc-shaped sliding slot (205) to limit the sliding, and the internal thread sleeve (303) is used to allow the external thread rod (302) to rotate on its inner wall thread to achieve horizontal movement.

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