CN117532442A - Fixing device for cylindrical lens processing - Google Patents

Abstract

The application relates to the technical field of cylindrical lens processing, and in particular relates to a fixing device for cylindrical lens processing, which comprises a base, wherein a cover body is connected onto the base in a sealing way, a sealing cavity is formed between the cover body and the base, and a vacuum generating device which is communicated with the sealing cavity in a sealing way is connected onto the base. The side of keeping away from the base on the lid has the locating plane, and cylindrical mirror work piece and the laminating of locating plane seal can realize carrying out accurate fixed to cylindrical mirror work piece with the locating plane on the lid. The cover body is provided with a vacuum hole penetrating through the positioning plane, and the vacuum hole is communicated with the sealed cavity. After the air in the sealed cavity is pumped out by the vacuum generating device, the cylindrical mirror workpiece is placed on the cover body, and the sealed cavity can adsorb and fix the cylindrical mirror workpiece placed on the cover body through the vacuum holes. The cylindrical mirror workpiece is fixed in a vacuum adsorption mode, and the cylindrical mirror workpiece can be quickly fixed and detached in a vacuum manufacturing and vacuum breaking mode.

Description

Fixing device for cylindrical lens processing

Technical Field

The application relates to the technical field of cylindrical lens processing, in particular to a fixing device for cylindrical lens processing.

Background

In the machining process of the cylindrical lens, a fixing device is generally required to fix a cylindrical lens workpiece so as to facilitate the machining procedures of rough grinding, fine grinding, grinding and the like. In the related art, a fixing device used for cylindrical mirror processing is generally provided with a placing groove on a main body of the fixing device, when the fixing device is used, a cylindrical mirror workpiece is required to be firstly brushed with wax in the placing groove, then placed in the placing groove, and finally compacted, so that the cylindrical mirror workpiece is fixed.

At present, when the fixing device in the related art is used for fixing a workpiece, because a gap exists between the side face of the placing groove of the fixing device and the side face of the workpiece, the fixing mode of brushing wax is difficult to ensure the uniformity degree of a wax layer, and the difference of the height of the workpiece on the same axis is easily caused, so that the positioning accuracy is influenced. Meanwhile, the fixation mode of coating wax is not convenient for quickly taking off the workpiece after processing.

Therefore, how to accurately fix and conveniently take the workpiece is a problem to be solved by those skilled in the art.

Disclosure of Invention

In order to solve the problem of how to realize carrying out accurate fixed and convenient taking to the work piece, the application provides a fixing device for cylindrical mirror processing.

The application provides a fixing device for cylindrical mirror processing adopts following technical scheme:

the utility model provides a fixing device for cylindrical mirror processing, includes the base, sealing connection has the lid on the base, the lid with be formed with sealed cavity between the base, be connected with on the base with sealed cavity seals the vacuum generating device of intercommunication, keep away from on the lid the side of base has locating plane, locating plane is used for the location of cylindrical mirror work piece, cylindrical mirror work piece with locating plane seals the laminating, set up a plurality of running through on the lid locating plane's vacuum hole, the vacuum hole with sealed cavity intercommunication.

Through adopting above-mentioned technical scheme, in the use, only need open vacuum generating device and take out the inside air of sealed cavity, place a plurality of cylindrical mirror work piece on the lid with the locating plane as the benchmark again, sealed cavity just can adsorb and fix the cylindrical mirror work piece of placing on the lid through the vacuum hole with it intercommunication. According to the technical scheme, the cylindrical mirror workpiece is fixed in a vacuum adsorption mode, and the cylindrical mirror workpiece can be quickly fixed and detached in a vacuum manufacturing and vacuum breaking mode. Meanwhile, the cylindrical mirror workpiece can be accurately fixed by utilizing the positioning plane on the cover body. And through setting up sealed cavity, make sealed cavity and a plurality of vacuum hole intercommunication simultaneously again, can make the suction that each vacuum hole produced in the course of the work equal, this design has ensured the vacuum adsorption mode and has carried out the stability of fixing to a plurality of cylindrical mirror work pieces simultaneously.

Optionally, the locating plane includes first locating plane and second locating plane, the vacuum hole run through in first locating plane, the second locating plane with the contained angle of first locating plane is alpha, the cylindrical mirror work piece has two crisscross first locating surface and second locating surface, first locating surface with contained angle between the second locating surface is beta, satisfies: α=β.

Through adopting above-mentioned technical scheme, in the use, place the cylindrical mirror work piece on the first locating plane on the lid, make the parallel laminating of first locating plane and first locating plane of cylindrical mirror work piece after, the position of readjustment cylindrical mirror work piece makes the parallel laminating of second locating plane and second locating plane of cylindrical mirror work piece, the position of adjustment cylindrical mirror work piece that corresponds according to the position of vacuum hole again, the first locating plane of the parallel laminating of messenger cylindrical mirror work piece and first locating plane covers on corresponding vacuum hole, can restrict all degrees of freedom of cylindrical mirror work piece through vacuum adsorption's mode. According to the technical scheme, the cylindrical mirror workpiece is positioned by utilizing the two intersected first positioning planes and the two intersected second positioning planes, so that the accuracy of fixing the workpiece can be effectively guaranteed.

Optionally, the inside elastic connection of vacuum hole has the valve subassembly, the valve subassembly can be blocked the vacuum hole with the intercommunication of sealed cavity, the valve subassembly wears to locate in the vacuum hole, the valve subassembly with cylinder mirror work piece elasticity butt is connected, through promoting cylinder mirror work piece can the roof pressure the valve subassembly opens the vacuum hole with the intercommunication of sealed cavity.

By adopting the technical scheme, in the use process, when the number of cylindrical mirror workpieces in a certain batch does not meet the requirement of covering all vacuum holes when a single cylindrical mirror workpiece is subjected to trial production or mass processing, the communication between the vacuum holes covered by the cylindrical mirror workpiece and the sealed cavity can be blocked through the valve assembly, so that the single cylindrical mirror workpiece or a small number of cylindrical mirror workpieces can be adsorbed and fixed; the technical scheme increases the application range of adsorbing and fixing the cylindrical lens workpiece.

Optionally, the valve assembly includes the valve stem, the valve stem wears to locate in the vacuum hole, the vacuum hole with be equipped with the elastic component between the valve stem, the valve stem is close to the one end fixedly connected with valve body of sealed cavity, the valve body has first sealed conical surface, the vacuum hole is close to the one end of sealed cavity has the sealed conical surface of second, first sealed conical surface with the sealed laminating of second under the effect of elastic component.

Through adopting above-mentioned technical scheme, in the use, the elastic component can drive valve stem and valve body voluntarily when not receiving the exogenic action and remove to the one end of keeping away from sealed cavity to make sealed laminating of first sealed conical surface and second sealed conical surface, when needs are fixed cylindrical mirror work piece, only need promote valve stem and valve body and remove towards sealed cavity's one end when placing cylindrical mirror work piece, can open the intercommunication of this vacuum hole and sealed cavity, and then realize fixing cylindrical mirror work piece. The technical scheme ensures the operability and practicability of the valve assembly in the use process.

Optionally, the valve stem is kept away from the one end of sealed cavity is equipped with the top cap, offer first step hole on the lid, first step hole with the coaxial setting of vacuum hole, the elastic component set up in between the step face of first step hole with the top cap.

Through adopting above-mentioned technical scheme, in the use, utilize the top cap to carry out spacingly to the elastic component to can make the elastic component drive the valve stem through the top cap and move to the direction of keeping away from sealed cavity. Meanwhile, the valve rod can be directly pushed to move towards the direction of the sealed cavity through the top cap. The technical scheme ensures the stability of the valve assembly in the use process.

Optionally, the elastic component is configured as the spring, the spring housing is located the valve stem outside and butt in between the step face in first step hole with the top cap, the top cap is close to the internal thread has been seted up to sealed cavity's one end, the valve stem is kept away from sealed cavity's one end has been seted up the external screw thread, the top cap with the valve stem passes through the internal screw thread with external screw thread threaded connection.

Through adopting above-mentioned technical scheme, in the use, with top cap and valve stem through threaded connection can change the step face of first step hole and the distance between the top cap according to actual demand to can realize adjusting the degree that the spring is compressed. The technical scheme ensures the convenience of installation and adjustment of the valve assembly in the use process.

Optionally, the second step hole has been seted up on the lid, the second step hole with the coaxial setting of vacuum hole, second step hole internally mounted has the otter board that has ventilative function, the lateral surface of otter board with the medial surface sliding connection in second step hole, the otter board orientation one side of sealed cavity with the top cap butt is connected, the otter board adopts the copper product sintering to form.

Through adopting above-mentioned technical scheme, when using, fix the cylindrical lens work piece, place the cylindrical lens work piece on the otter board, can drive the otter board and slide in the direction that the inboard face of second step hole is close to sealed cavity through pressing the cylindrical lens work piece, and then drive top cap and valve stem and remove to the direction that is close to sealed cavity, just can open the intercommunication of this vacuum hole and sealed cavity, can realize fixing the cylindrical lens work piece. In the working process, the screen plate can also prevent foreign matters such as dust from entering the vacuum holes, so that the normal work of the valve assembly is prevented from being influenced by the foreign matters such as dust, and the stability of the valve assembly in use is ensured. And the cylindrical mirror workpiece can be directly contacted with the copper material by utilizing the characteristic of lower hardness of the copper material without damaging the surface of the cylindrical mirror workpiece by pressing, so that the processing quality of the cylindrical mirror workpiece is ensured.

Optionally, be equipped with first sealing washer between the lid with the base, the base is close to the surface of lid has seted up first mounting groove, first sealing washer interference fit install in the first mounting groove, first sealing washer keep away from the lateral surface of base with the surface butt of lid.

Through adopting above-mentioned technical scheme, in the use, set up the sealing performance between lid and base can be increased to the first sealing washer between lid and base to the leakproofness of sealed cavity has been guaranteed.

Optionally, the lid is located offer a plurality of second mounting groove on the locating plane, the second mounting groove is annular closed and surrounds at least one the vacuum hole, the outward flange of second mounting groove can be simultaneously by the surface cover of cylindrical mirror work piece, the inside interference fit of second mounting groove installs the second sealing washer, the second sealing washer keep away from the lateral surface of lid with the surface butt of cylindrical mirror work piece.

Through adopting above-mentioned technical scheme, in the use, the second sealing washer of setting in the inside second mounting groove can guarantee the location plane with the leakproofness between the surface of cylindrical mirror work piece.

Optionally, an air inlet valve fixedly connected with the sealing cavity in a sealing way is arranged on the base.

Through adopting above-mentioned technical scheme, in the use, when the processing of cylindric mirror work piece is accomplished the back, when need take off the cylindric mirror work piece, only need open the admission valve, outside air just can enter into in the sealed cavity after the admission valve is opened to destroy the vacuum environment in the sealed cavity, and then release the absorption to the cylindric mirror work piece.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the cylindrical mirror workpiece is fixed in a vacuum adsorption mode, and the cylindrical mirror workpiece can be quickly fixed and detached in a vacuum manufacturing and vacuum breaking mode.

2. The positioning plane on the cover body is utilized to realize accurate fixation of the cylindrical mirror workpiece.

3. This application is through setting up sealed cavity and a plurality of vacuum hole intercommunication, can make every vacuum hole equal at the suction that produces in the course of the work, and this design has ensured the vacuum adsorption mode and has carried out the stability of fixing to a plurality of cylindrical mirror work pieces simultaneously.

Drawings

Fig. 1 is a schematic structural view showing an assembled state of a cylindrical mirror processing fixing device according to an embodiment of the present application.

Fig. 2 is an exploded view of a cylindrical lens processing fixture according to an embodiment of the present application.

Fig. 3 is a schematic structural view showing a sectional state of a cylindrical mirror processing fixing device according to an embodiment of the present application.

Fig. 4 is a schematic view of the structure of fig. 3 in a cross-sectional view.

FIG. 5 is an enlarged schematic view of the structure of the portion I in FIG. 3.

Fig. 6 is an enlarged schematic view of the structure of the part ii in fig. 3.

Fig. 7 is an exploded view of a valve assembly according to an embodiment of the present application.

Reference numerals illustrate: 100. a base; 101. a first seal ring; 102. a first mounting groove; 103. a groove; 104. a first mounting hole; 105. a connecting pipe; 106. a second mounting hole; 200. a cover body; 201. a first stepped hole; 202. a second stepped hole; 203. a screen plate; 204. a second mounting groove; 205. a second seal ring; 300. sealing the cavity; 301. an intake valve; 400. positioning a plane; 401. a first positioning plane; 402. a second positioning plane; 500. a cylindrical mirror workpiece; 501. a first positioning surface; 502. a second positioning surface; 600. a vacuum hole; 700. a valve assembly; 701. a valve stem; 702. an elastic member; 703. a valve body; 704. a first sealing conical surface; 705. a second sealing conical surface; 706. a top cap; 707. a clamping groove.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-7.

In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

Referring to fig. 1 and fig. 2, the embodiment of the application discloses a fixing device for cylindrical lens processing, which comprises a base 100, wherein the base 100 is in a cuboid shape, a groove 103 is formed on the surface of the base 100, a cover 200 is hermetically connected to one side of the base 100, which is provided with the groove 103, the cover 200 and the base 100 are detachably connected through screw locking, and after the cover 200 is hermetically connected with the base 100, the groove 103 forms a sealed cavity 300 between the cover 200 and the base 100. The base 100 is provided with a first mounting hole 104, the first mounting hole 104 is communicated with the sealing cavity 300, a connecting pipe 105 is arranged in the first mounting hole 104 in a sealing manner, the connecting pipe 105 is connected with the vacuum generating device in a sealing manner, one side, far away from the first mounting hole 104, of the base 100 is provided with a second mounting hole 106, the second mounting hole 106 is communicated with the sealing cavity 300, and an air inlet valve 301 is arranged in the second mounting hole 106 in a sealing manner.

In the working process, the vacuum generating device can extract the air in the sealed cavity 300, so that the inside of the sealed cavity 300 forms a negative pressure or vacuum environment; by opening the air inlet valve 301, external air can be introduced into the sealed cavity 300 through the air inlet valve 301, thereby breaking the negative pressure or vacuum environment inside the sealed cavity 300.

Specifically, the vacuum generating device is configured as a vacuum pump.

Of course, in other embodiments of the present application, the vacuum generating device may also be configured as other devices or apparatuses capable of evacuating air to generate negative pressure, such as a vacuum generator.

Referring to fig. 2 and 3, in an embodiment of the present application, a first sealing ring 101 is disposed between the cover 200 and the base 100, a first mounting groove 102 is formed on a surface of the base 100, which is close to the cover 200, the first sealing ring 101 is mounted in the first mounting groove 102 in an interference fit manner, and an outer side surface of the first sealing ring 101, which is far away from the base 100, is abutted against the surface of the cover 200.

In use, the first sealing ring 101 disposed between the cover 200 and the base 100 can increase the sealing performance between the cover 200 and the base 100, thereby ensuring the sealing performance of the sealed cavity 300.

It should be appreciated that in other embodiments of the present application, the sealing performance between the cover 200 and the base 100 may be ensured by providing a sealant, a gasket, or the like, or other manners that are beneficial to ensuring the sealing performance.

Referring to fig. 2 and fig. 5, in an embodiment of the present application, the cover 200 is located on the positioning plane 400 and provided with a plurality of second mounting grooves 204, the second mounting grooves 204 are annular and closed to enclose at least one vacuum hole 600, the outer edges of the second mounting grooves 204 can be covered by the surface of the cylindrical mirror workpiece 500 at the same time, a second sealing ring 205 is installed in the second mounting grooves 204 in an interference fit manner, and the second sealing ring 205 is far away from the outer side surface of the cover 200 and is in contact with the surface of the cylindrical mirror workpiece 500.

During use, the second seal 205 disposed within the second mounting groove 204 may ensure tightness between the locating plane 400 and the surface of the cylindrical mirror workpiece 500.

Referring to fig. 2 and 3 together, in one embodiment of the present application, a positioning plane 400 is provided on a side of the cover 200 away from the base 100, the positioning plane 400 is used for positioning the cylindrical mirror workpiece 500, when the cylindrical mirror workpiece 500 is placed on and attached to the positioning plane 400, the cylindrical mirror workpiece 500 and the positioning plane 400 can form a sealed connection, a plurality of vacuum holes 600 penetrating through the positioning plane 400 are provided on the cover 200, and the vacuum holes 600 are communicated with the sealed cavity 300.

In the working process, after the vacuum generating device is started to pump out the air in the sealed cavity 300, a plurality of cylindrical mirror workpieces 500 are placed on the cover body 200 by taking the positioning plane 400 as a reference, and the sealed cavity 300 can adsorb and fix the cylindrical mirror workpieces 500 placed on the cover body 200 through the vacuum holes 600 communicated with the sealed cavity. The design utilizes a vacuum adsorption mode to fix the cylindrical lens workpiece 500, and can realize quick fixing and dismounting of the cylindrical lens workpiece 500 by means of vacuum manufacturing and vacuum breaking. Meanwhile, the cylindrical mirror workpiece 500 can be precisely fixed by using the positioning plane 400 on the cover 200. And, through setting up sealed cavity 300, make sealed cavity 300 and a plurality of vacuum hole 600 intercommunication simultaneously again, can make the suction that each vacuum hole 600 produced in the course of the work equal, this design has ensured the vacuum adsorption mode and has carried out the stability of fixed to a plurality of cylindrical mirror work pieces simultaneously.

Referring to fig. 3 and fig. 6 together, in an embodiment of the present application, the positioning plane 400 includes a first positioning plane 401 and a second positioning plane 402, the vacuum hole 600 penetrates through the first positioning plane 401, an included angle between the second positioning plane 402 and the first positioning plane 401 is α, the cylindrical mirror workpiece 500 has a first positioning plane 501 and a second positioning plane 502 that intersect with each other, and an included angle between the first positioning plane 501 and the second positioning plane 502 is β, α=β.

In the use process, through setting up two crisscross first locating plane 401 and second locating plane 402, can be quick accurate place cylindrical mirror work piece 500 on lid 200, firstly place cylindrical mirror work piece 500 on first locating plane 401, make cylindrical mirror work piece 500 first locating plane 501 and first locating plane 401 parallel laminating after, the position of readjustment cylindrical mirror work piece 500 makes cylindrical mirror work piece 500's second locating plane 502 and second locating plane 402 parallel laminating, and the position of readjustment cylindrical mirror work piece 500 according to the position correspondence of vacuum hole 600, make cylindrical mirror work piece 500 and first locating plane 401 parallel laminating first locating plane 501 cover on corresponding vacuum hole 600, can restrict all degrees of freedom of cylindrical mirror work piece 500 through the mode of vacuum absorption. The manner of positioning the cylindrical mirror workpiece 500 by using the two intersected first positioning planes 401 and the second positioning planes 402 can effectively ensure the accuracy of fixing the workpiece.

Referring to fig. 2 and fig. 3 together, in an embodiment of the present application, a valve assembly 700 is elastically connected to the inside of the vacuum hole 600, the valve assembly 700 can block the communication between the vacuum hole 600 and the sealed cavity 300, the valve assembly 700 is inserted into the vacuum hole 600, the valve assembly 700 is elastically connected to the cylindrical mirror workpiece 500 in an abutting manner, and the valve assembly 700 can be pushed to open the communication between the vacuum hole 600 and the sealed cavity 300 by pushing the cylindrical mirror workpiece 500.

In the use process, when the number of cylindrical mirror workpieces in a certain batch does not meet the requirement of covering all the vacuum holes 600 when a single cylindrical mirror workpiece is required to be subjected to trial production or mass processing, the communication between the vacuum holes 600 covered by the cylindrical mirror-free workpiece 500 and the sealed cavity 300 can be blocked through the valve assembly 700, so that the single cylindrical mirror workpiece or a small number of cylindrical mirror workpieces can be adsorbed and fixed; the design increases the application range of the cylindrical lens workpiece for adsorption fixation.

Referring to fig. 3 and 5, in an embodiment of the present application, the valve assembly 700 includes a valve rod 701, the valve rod 701 is disposed in the vacuum hole 600 in a penetrating manner, an elastic member 702 is disposed between the vacuum hole 600 and the valve rod 701, one end of the valve rod 701, which is close to the sealed cavity 300, is fixedly connected with a valve body 703, the valve body 703 has a first sealing conical surface 704, one end of the vacuum hole 600, which is close to the sealed cavity 300, has a second sealing conical surface 705, and the first sealing conical surface 704 and the second sealing conical surface 705 are in sealing fit under the action of the elastic member 702.

In the use, the elastic component 702 can drive the valve rod 701 and the valve body 703 to move towards the end far away from the sealed cavity 300 when not receiving the external force, thereby making the first sealed conical surface 704 and the second sealed conical surface 705 seal and attach, when the cylindrical mirror workpiece needs to be fixed, only the valve rod 701 and the valve body 703 need to be pushed to move towards the end of the sealed cavity 300 when the cylindrical mirror workpiece is placed, the communication between the vacuum hole 600 and the sealed cavity 300 can be opened, and further the fixation of the cylindrical mirror workpiece is realized. The design ensures the operability and practicality of the valve assembly in use.

Referring to fig. 5 and fig. 7 together, in one embodiment of the present application, a top cap 706 is disposed at an end of the valve stem 701 away from the sealed cavity 300, a first stepped hole 201 is formed in the cover 200, the first stepped hole 201 and the vacuum hole 600 are coaxially disposed, and the elastic member 702 is disposed between a stepped surface of the first stepped hole 201 and the top cap 706.

In use, the top cap 706 is utilized to limit the elastic member 702, so that the elastic member drives the valve stem 701 to move away from the sealed cavity 300 through the top cap. At the same time, the valve stem 701 can be directly pushed to move toward the sealed cavity 300 by the top cap 706. The design ensures the stability of the valve assembly during use.

Referring to fig. 5 and 7, in an embodiment of the present application, the elastic member 702 is configured as a spring, the spring is sleeved on the outer side of the valve rod 701 and abuts against between the step surface of the first step hole 201 and the top cap 706, an internal thread is provided at one end of the top cap 706 close to the sealing cavity 300, a clamping groove 707 is provided at one end of the top cap 706 far away from the sealing cavity 300, an external thread is provided at one end of the valve rod 701 far away from the sealing cavity 300, and the top cap 706 and the valve rod 701 are in threaded connection through the internal thread and the external thread.

In the use process, the top cap 706 and the valve rod 701 are connected through threads, and the top cap 706 can be screwed conveniently through the clamping groove 707, so that the distance between the step surface of the first step hole 201 and the top cap 706 can be changed according to actual requirements, and the degree of compression of the spring can be adjusted. The design ensures the convenience of installation and adjustment of the valve assembly in the use process.

Referring to fig. 3 and fig. 5, in an embodiment of the present application, a second step hole 202 is formed in the cover 200, the second step hole 202 and the vacuum hole 600 are coaxially disposed, a mesh plate 203 with a ventilation function is installed in the second step hole 202, an outer side surface of the mesh plate 203 is slidably connected with an inner side surface of the second step hole 202, one side of the mesh plate 203 facing the sealed cavity 300 is in abutting connection with the top cap 706, and the mesh plate 203 is sintered by copper material.

In the working process, when the cylindrical lens workpiece is fixed, the cylindrical lens workpiece is placed on the screen 203, the screen 203 can be driven to slide in the direction of the inner side surface of the second step hole 202, which is close to the sealed cavity 300, by pressing the cylindrical lens workpiece 500, and then the top cap 706 and the valve rod 701 are driven to move in the direction of the second step hole 300, so that the vacuum hole 600 and the sealed cavity 300 can be opened to be communicated, and the cylindrical lens workpiece can be fixed. The screen 203 can also prevent foreign matters such as external dust from entering the vacuum holes, so that the normal work of the valve assembly is prevented from being influenced by the foreign matters such as dust, and the stability of the valve assembly in use is ensured. And the cylindrical mirror workpiece can be directly contacted with the copper material by utilizing the characteristic of lower hardness of the copper material without damaging the surface of the cylindrical mirror workpiece by pressing, so that the processing quality of the cylindrical mirror workpiece is ensured.

The implementation principle of the fixing device for cylindrical mirror machining in the embodiment of the application is as follows:

in the use process, when the cylindrical lens workpiece 500 needs to be fixed, the vacuum generating device is started to pump out the air in the sealed cavity 300, and the valve assembly 700 is arranged, so that the vacuum hole 600 and the sealed cavity 300 are in a closed state in the initial state. And then sequentially placing a plurality of cylindrical mirror workpieces 500 on the screen 203 on the cover body 200 one by one with the positioning plane 400 as a reference, and simultaneously pressing the cylindrical mirror workpieces 500 can drive the screen 203 to slide in the second step hole 202 towards the direction close to the sealed cavity 300, so as to drive the top cap 706 and the valve rod 701 to move towards the direction close to the sealed cavity 300, and then the communication between the vacuum hole 600 and the sealed cavity 300 can be opened. Meanwhile, since pressing the cylindrical mirror workpiece 500 causes the first positioning surface 501 of the cylindrical mirror workpiece 500 to be attached to the first positioning plane 401 in parallel to form a sealed connection, the vacuum environment inside the sealed cavity 300 acts on the cylindrical mirror workpiece 500 through the vacuum holes 600 and the screen 203, and adsorbs and fixes the cylindrical mirror workpiece 500.

When the cylindrical lens workpiece 500 is removed after being processed, only the air inlet valve 301 is opened, and external air can enter the sealed cavity after the air inlet valve 301 is opened, thereby breaking the vacuum environment in the sealed cavity. The valve assembly 700 rebounds again under the action of the spring and closes the vacuum hole 600, thereby releasing the suction of the cylindrical mirror workpiece 500. Meanwhile, the top cap 706 pushes the screen 203 and the cylindrical lens workpiece 500 to move away from the cover 200, so as to avoid adhesion between the cylindrical lens workpiece 500 and the cover 200, and the worker can directly collect the cylindrical lens workpiece 500 after finishing processing.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (10)

1. A fixing device for cylindrical mirror processing, its characterized in that: including base (100), sealing connection has lid (200) on base (100), lid (200) with be formed with sealed cavity (300) between base (100), be connected with on base (100) with vacuum generating device of sealed cavity (300) sealed intercommunication, keep away from on lid (200) the side of base (100) has locating plane (400), locating plane (400) are used for the location of cylindrical mirror work piece (500), cylindrical mirror work piece (500) with locating plane (400) seal laminating, offer a plurality of and run through on lid (200) vacuum hole (600) of locating plane (400), vacuum hole (600) with sealed cavity (300) intercommunication.

2. The fixture for cylindrical mirror machining according to claim 1, wherein: the locating plane (400) comprises a first locating plane (401) and a second locating plane (402), the vacuum hole (600) penetrates through the first locating plane (401), the included angle between the second locating plane (402) and the first locating plane (401) is alpha, the cylindrical mirror workpiece (500) is provided with a first locating surface (501) and a second locating surface (502) which are intersected, the included angle between the first locating surface (501) and the second locating surface (502) is beta, and the following conditions are satisfied: α=β.

3. The fixture for cylindrical mirror machining according to claim 1, wherein: the vacuum hole (600) is internally and elastically connected with a valve assembly (700), the valve assembly (700) can block the vacuum hole (600) from being communicated with the sealed cavity (300), the valve assembly (700) is arranged in the vacuum hole (600) in a penetrating mode, the valve assembly (700) is elastically connected with the cylindrical mirror workpiece (500) in an abutting mode, and the valve assembly (700) can be pushed to open the vacuum hole (600) and the sealed cavity (300) from being communicated by pushing the cylindrical mirror workpiece (500).

4. A fixture for cylindrical mirror machining according to claim 3, wherein: valve subassembly (700) are including valve stem (701), valve stem (701) wear to locate in vacuum hole (600), vacuum hole (600) with be equipped with elastic component (702) between valve stem (701), valve stem (701) are close to one end fixedly connected with valve body (703) of sealed cavity (300), valve body (703) have first sealed conical surface (704), vacuum hole (600) are close to one end of sealed cavity (300) has second sealed conical surface (705), first sealed conical surface (704) with second sealed conical surface (705) are in sealed laminating under the effect of elastic component (702).

5. The fixture for cylindrical mirror machining according to claim 4, wherein: the valve rod (701) is far away from one end of the sealed cavity (300) and is provided with a top cap (706), a first step hole (201) is formed in the cover body (200), the first step hole (201) and the vacuum hole (600) are coaxially arranged, and the elastic piece (702) is arranged between the step surface of the first step hole (201) and the top cap (706).

6. The fixture for cylindrical mirror machining according to claim 5, wherein: the elastic piece (702) is configured into a spring, the spring is sleeved on the outer side of the valve rod (701) and is abutted to the space between the step surface of the first step hole (201) and the top cap (706), an internal thread is formed at one end, close to the sealing cavity (300), of the top cap (706), an external thread is formed at one end, far away from the sealing cavity (300), of the valve rod (701), and the top cap (706) is in threaded connection with the valve rod (701) through the internal thread and the external thread.

7. The fixture for cylindrical mirror machining according to claim 5, wherein: the cover body (200) is provided with a second step hole (202), the second step hole (202) and the vacuum hole (600) are coaxially arranged, a screen plate (203) with a ventilation function is arranged in the second step hole (202), the outer side face of the screen plate (203) is in sliding connection with the inner side face of the second step hole (202), the screen plate (203) faces one side of the sealing cavity (300) and is in butt connection with the top cap (706), and the screen plate (203) is formed by sintering copper materials.

8. The fixture for cylindrical mirror machining according to claim 1, wherein: the novel sealing device comprises a cover body (200) and a base (100), wherein a first sealing ring (101) is arranged between the cover body (200) and the base (100), a first mounting groove (102) is formed in the surface of the base (100) close to the cover body (200), the first sealing ring (101) is mounted in the first mounting groove (102) in an interference fit mode, and the first sealing ring (101) is far away from the outer side face of the base (100) and is in surface butt joint with the cover body (200).

9. The fixture for cylindrical mirror machining according to claim 1, wherein: the cover body (200) is located offer a plurality of second mounting groove (204) on locating plane (400), second mounting groove (204) are annular closed and enclose at least one vacuum hole (600), the outward flange of second mounting groove (204) can be simultaneously by the surface covering of cylindrical mirror work piece (500), second sealing washer (205) are installed to inside interference fit of second mounting groove (204), second sealing washer (205) are kept away from the lateral surface of cover body (200) with the surface butt of cylindrical mirror work piece (500).

10. The fixture for cylindrical mirror machining according to any one of claims 1-9, wherein: an air inlet valve (301) fixedly and hermetically connected with the sealing cavity (300) is arranged on the base (100).