CN214669794U

CN214669794U - Gluing centering device for spherical products

Info

Publication number: CN214669794U
Application number: CN202120561146.9U
Authority: CN
Inventors: 杨子玄; 武锐; 杜金花
Original assignee: Beijing Trans Manufacture And Trade Co ltd
Current assignee: Beijing Trans Manufacture And Trade Co ltd
Priority date: 2021-03-18
Filing date: 2021-03-18
Publication date: 2021-11-09
Anticipated expiration: 2031-03-18

Abstract

The utility model discloses a spherical product gluing centering device, which relates to the technical field of optical measurement and comprises a mounting platform, a tool and at least two groups of adjusting structures, wherein the tool is arranged on the upper end surface of the mounting platform and is used for placing a cemented lens, and the cemented lens comprises a gluing upper piece and a gluing lower piece which are arranged up and down; each group of adjusting structures is respectively arranged on the mounting platform along different radial directions of the cemented lens, each group of adjusting structures comprises a measuring component and an adjusting component, the measuring component and the adjusting component are arranged in the same direction and are respectively positioned on two side parts of the cemented upper piece, and each measuring component and each adjusting component can respectively stretch along the self setting direction and are propped against the outer peripheral surface of the cemented upper piece. So set up, each measuring unit and each adjusting part combine to support in the veneer piece periphery, realize the rigidity of piece in the veneer, avoid taking place the displacement in the measurement process, reduce the measurement deviation, need not to adjust many times, reduce the veneer degree of difficulty, improve veneer efficiency.

Description

Gluing centering device for spherical products

Technical Field

The utility model relates to an optical measurement technical field, more specifically say, relate to a spherical product veneer centering device.

Background

The cemented lens is formed by cementing two lenses made of different materials together, can correct the chromatic dispersion of glass and eliminate the chromatic aberration problem, and is widely applied to an objective lens system, an imaging system and a laser measurement system. In order to ensure the coaxiality of the optical system, the centers of the two lenses must be aligned.

In the process of gluing the high-precision lens, a central deviation measuring instrument is used for measuring gluing while ensuring that the central deviation is within an allowable range. After the center deviation measuring instrument finishes measuring, offset data of the center of each surface is given, and an operator finely adjusts the position of the glued upper sheet according to the data so as to achieve the purpose of centering.

In the gluing process, the lower gluing sheet is placed in the tool, the upper gluing sheet is placed on the lower gluing sheet, and an uncured glue layer is arranged between the upper gluing sheet and the lower gluing sheet. The central deviation measuring instrument needs to rotate in the measuring process, and the gluing upper piece can slightly displace relative to the gluing lower piece in the rotating process because the glue layer is in a liquid state, so that the measuring result is inaccurate, an operator needs to repeatedly measure for many times to complete center adjustment, namely, the centers of the gluing upper piece and the gluing lower piece are on the same straight line, the gluing difficulty is increased in the whole process, and the gluing efficiency is reduced.

Therefore, how to solve the problems of measurement result deviation, complicated adjustment process, increased gluing difficulty and reduced gluing efficiency caused by displacement of the glued upper piece in the gluing process in the prior art becomes an important technical problem to be solved by technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sphere product veneer centering device takes place the displacement in order to solve among the prior art in the veneer in-process and leads to the technical problem that measuring result deviation, accommodation process are loaded down with trivial details, the veneer degree of difficulty increase, veneer efficiency reduces. The utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.

The utility model provides a sphere product veneer centering device, include:

mounting a platform;

the tool is arranged on the upper end face of the mounting platform and used for placing a cemented lens, and the cemented lens comprises a cemented upper piece and a cemented lower piece which are arranged up and down;

at least two sets of regulation structures, follow respectively cemented lens's different radial settings are in on the mounting platform, each group the regulation structure all includes measurement component and adjusting part, measurement component with the adjusting part syntropy sets up and is located respectively the both sides portion of piece on the veneer, each measurement component, each adjusting part can set up the direction respectively along self and stretch out and draw back, in order to support the outer peripheral face of piece on the veneer.

Preferably, the adjusting structures are arranged in two groups and are respectively arranged on the mounting platform along a first horizontal direction and a second horizontal direction, and the first horizontal direction and the second horizontal direction are perpendicular to each other.

Preferably, still including setting up two at least bracket components of mounting platform up end, the bracket component with adjust the structure one-to-one, and each the bracket component all includes two supports, two the support corresponds respectively measurement component with adjusting part, measurement component with adjusting part sets up respectively in the correspondence on the support.

Preferably, the bracket is movably arranged on the mounting platform, and the moving direction is the same as the arrangement direction of the adjusting structure corresponding to the bracket.

Preferably, the measuring assembly and the adjusting assembly are movably disposed on the corresponding brackets, and the moving direction is the same as the thickness direction of the cemented lens.

Preferably, each bracket is of an L-shaped structure, each L-shaped structure includes a first connecting portion and a second connecting portion, each first connecting portion is provided with a first strip-shaped hole, the length direction of each first strip-shaped hole is the same as the arrangement direction of the corresponding adjusting structure, the mounting platform is provided with a first fastening hole, and a first fastening piece penetrates through the first strip-shaped hole and the first fastening hole and is fastened to fixedly connect the bracket and the mounting platform; the second connecting portion are provided with second strip-shaped holes, the length direction of the second strip-shaped holes is the same as the thickness direction of the cemented lens, and the measuring assembly or the adjusting assembly penetrates through the second strip-shaped holes and is fastened through a second fastener, so that the support is fixedly connected with the measuring assembly or the adjusting assembly.

Preferably, the adjusting part includes bolt, sleeve and first thimble, the bolt sets up on the support, the sleeve includes first port and second port, first thimble is movably set up in the sleeve and by second port part is stretched out, in order to support the outer peripheral face of veneer upper segment, the sleeve is close to the position of first port and is equipped with the internal thread, the bolt by first port stretch into in the sleeve and with sleeve screw-thread fit, in order to act on first thimble.

Preferably, the adjusting assembly further comprises an elastic piece arranged in the sleeve, the elastic piece is located between the first thimble and the bolt, and two ends of the elastic piece respectively act on the first thimble and the bolt.

Preferably, the measuring component comprises a differential head and a second thimble for abutting against the peripheral surface of the upper cemented piece, the differential head is arranged on the bracket, and the second thimble is arranged at the end part of the differential head close to the cemented lens.

Preferably, the first thimble and the second thimble are made of plastic.

In the technical scheme provided by the utility model, the gluing and centering device for spherical products comprises a mounting platform, a tool and at least two groups of adjusting structures, wherein the tool is arranged on the upper end surface of the mounting platform and is used for placing a cemented lens, and the cemented lens comprises a gluing upper piece and a gluing lower piece which are arranged up and down; each group of adjusting structures is respectively arranged on the mounting platform along the different radial directions of the cemented lens, each group of adjusting structures comprises a measuring component and an adjusting component, the measuring component and the adjusting component are used for abutting against the outer peripheral surface of the cemented upper piece, the measuring component and the adjusting component are arranged in the same direction and are respectively positioned at the two side parts of the cemented upper piece, and each measuring component and each adjusting component can respectively extend and retract along the self direction, so that the end parts of the measuring components and the adjusting components abut against the outer peripheral surface of the cemented upper piece.

So set up, each measuring unit and each adjusting part combine to support the different positions at the veneer upper segment outer peripheral face, realize the rigidity of veneer upper segment for the relative veneer lower segment rigidity of veneer upper segment avoids mounting platform rotatory in-process veneer upper segment to take place small displacement, so, can quick alignment center, reduced the measurement deviation, need not many times to measure and adjust, reduce the veneer degree of difficulty, improve veneer efficiency. And when the position of the gluing upper piece is adjusted according to the offset data, the positions of each measuring assembly and each adjusting assembly are changed and moved, so that each measuring assembly and each adjusting assembly still abut against the outer peripheral surface of the gluing upper piece, and the fixing and the adjustment of the gluing upper piece are realized.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a gluing centering device for spherical products in an embodiment of the present invention;

FIG. 2 is a top view of a gluing and centering device for spherical products in an embodiment of the present invention;

fig. 3 is a cross-sectional view of a gluing and centering device for spherical products in an embodiment of the present invention.

In FIGS. 1-3:

1. mounting a platform; 2. assembling; 3. gluing a lower sheet; 4. gluing and laminating; 5. a support; 51. a first connection portion; 511. a first bar-shaped hole; 52. a second connecting portion; 521. a second bar-shaped hole; 6. an adjustment assembly; 61. a bolt; 62. a sleeve; 63. a first thimble; 64. a spring; 7. a measurement assembly; 71. differentiating the head; 72. a second thimble; 8. fastening screws; 9. and (6) mounting the nut.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The purpose of this embodiment is to provide a spherical product gluing centering device, solve among the prior art problem that displacement takes place to lead to measuring result deviation, accommodation process loaded down with trivial details, the veneer degree of difficulty increases, the veneer efficiency reduces in the veneer in-process.

Hereinafter, embodiments will be described with reference to the drawings. The embodiments described below do not limit the scope of the invention described in the claims. Further, the entire contents of the configurations shown in the following embodiments are not limited to those necessary as a solution of the invention described in the claims.

Referring to fig. 1-3, in the present embodiment, the gluing and centering device for spherical products includes a mounting platform 1, a tooling 2 and at least two sets of adjusting structures, the tooling 2 is disposed on the upper end surface of the mounting platform 1 and is used for placing a cemented lens, the cemented lens includes a gluing upper piece 4 and a gluing lower piece 3 disposed up and down, specifically, the gluing lower piece 3 is disposed on the tooling 2, the gluing upper piece 4 is disposed on the gluing lower piece 3, and a glue layer that is not yet solidified is disposed between the gluing upper piece 4 and the gluing lower piece 3. The adjusting structures extend along the radial direction of the cemented lens, each group of adjusting structures are respectively arranged on the mounting platform 1 along different radial directions of the cemented lens, the included angle a between the directions of any two adjacent adjusting structures is 0-90 degrees, and preferably, the included angles between any two adjacent adjusting structures are the same. Optionally, the number of the adjusting structures can be three, and the included angle between the directions of any two adjacent adjusting structures is 60 degrees; the adjusting structures are arranged into two, and the included angle between the directions of any two adjacent adjusting structures is 90 degrees. In this embodiment, each group of adjusting structures includes a measuring component 7 and an adjusting component 6, both of which extend along the radial direction of the cemented lens, the measuring component 7 and the adjusting component 6 are disposed in the same direction and located at both sides of the cemented upper piece 4 respectively, and are used for abutting against the outer circumferential surface of the cemented upper piece 4 respectively, each measuring component 7 and each adjusting component 6 can be extended and shortened by a certain length along the setting direction thereof, so as to ensure that the position abutting against the end of the cemented upper piece 4 can be moved and abutted against the outer circumferential surface of the cemented upper piece 4, thereby realizing the adjustment of the position of the cemented upper piece 4.

So set up, each measuring unit 7 combines with each adjusting part 6 to support the different positions at 4 outer peripheral faces on the veneer, realize the rigidity of 4 on the veneer, make 3 rigidity of 4 relative veneer lower plate on the veneer, avoid 1 rotatory in-process veneer upper plate 4 relative veneer lower plate 3 of mounting platform to take place small displacement, so, can quick alignment center, reduced the measurement deviation, need not many times to measure and adjust, reduce the veneer degree of difficulty, improve gluing efficiency. When the position of the upper adhesive sheet 4 is adjusted based on the offset data, the positions of the respective measuring units 7 and the respective adjusting units 6 are changed and moved so that the respective measuring units 7 and the respective adjusting units 6 are still abutted against the outer peripheral surface of the upper adhesive sheet 4, thereby fixing and adjusting the upper adhesive sheet 4.

In a preferred embodiment, as shown in fig. 1-3, the adjustment structures are arranged in two groups and are arranged on the mounting platform 1 in a first horizontal direction and a second horizontal direction, respectively, which are perpendicular to each other.

As an optional embodiment, the gluing and centering device for spherical products further comprises at least two bracket assemblies, wherein the bracket assemblies are arranged on the upper end surface of the mounting platform 1, and the bracket assemblies correspond to the adjusting structures one by one. Specifically, each bracket component all includes two supports 5, and two supports 5 correspond measuring unit 7 and the adjusting part 6 of same regulation structure respectively, and measuring unit 7 and adjusting part 6 set up respectively on corresponding support 5.

So set up, support measuring unit 7 and adjusting part 6 above mounting platform 1 through corresponding support 5 to realize measuring unit 7 and adjusting part 6 and support the outer peripheral surface at veneer upper plate 4.

As an alternative embodiment, the brackets 5 are movably arranged on the mounting platform 1, and the moving direction is the same as the arrangement direction of their corresponding adjusting structures, i.e. each bracket 5 and the corresponding measuring assembly 7/adjusting assembly 6 are movably arranged on the mounting platform 1 in the radial direction of the cemented lens.

Among the prior art, according to cemented lens's height some frock 2 of temporarily bonding come fixed veneer upper plate 4, can tentatively satisfy the demand of veneer operation, but the lens of different diameters of different thickness will bond repeatedly and demolish interim frock 2 when gluing, can influence the overall efficiency of veneer. So set up, support 5 removes and can drive measuring component 7/adjusting part 6 that corresponds and can be close to and keep away from on the veneer piece 4, can fix the veneer piece 4 on different diameters size, is applicable to the cemented lens of different diameters, enlarges application scope, improves veneer efficiency.

As an alternative embodiment, the measuring assembly 7 and the adjusting assembly 6 are movably disposed on the corresponding brackets 5, respectively, and the moving direction is the same as the thickness direction of the cemented lens. Specifically, the thickness direction of the cemented lens is a direction perpendicular to the paper as shown in fig. 2.

So set up, measuring component 7, adjusting part 6 can rise or descend relatively cemented lens and come the adjusting position, can fix the upper glued piece 4 of different thickness, are applicable to the cemented lens of different thickness, further enlarge application scope, improve veneer efficiency.

Specifically, as shown in fig. 1, each bracket 5 is of an "L" type structure, the "L" type structure includes a first connecting portion 51 and a second connecting portion 52, the first connecting portion 51 is provided with a first strip-shaped hole 511, the length direction of the first strip-shaped hole 511 is the same as the arrangement direction of the corresponding adjusting structure, the mounting platform 1 is provided with a first fastening hole, and a first fastening member penetrates through the first strip-shaped hole 511 and the first fastening hole and is fastened, so that the bracket 5 is fixedly connected with the mounting platform 1. In this way, the first fastening member is inserted and fastened at different positions of the first strip-shaped hole 511, so that the position of the bracket 5 relative to the mounting platform 1 is changed, and the position of the adjusting assembly 6 or the measuring assembly 7 in the radial direction relative to the cemented lens is also changed.

Specifically, the second connecting portion 52 is provided with a second bar-shaped hole 521, the length direction of the second bar-shaped hole 521 is the same as the thickness direction of the cemented lens, and the measuring unit 7 or the adjusting unit 6 penetrates through the second bar-shaped hole 521 and is tightened by a second fastener, thereby fixedly connecting the bracket 5 with the measuring unit 7 or the adjusting unit 6. In this way, the measuring component 7 or the adjusting component 6 penetrates and is fastened at different positions of the second bar-shaped hole 521, and the height position of the adjusting component 6 or the measuring component 7 relative to the cemented lens can be changed.

In this embodiment, the first connecting portion 51 is a horizontal plate parallel to the upper end surface of the mounting platform 1, the second connecting portion 52 is a vertical plate perpendicular to the upper end surface of the mounting platform 1, the first bar-shaped hole 511 is horizontally disposed, and the second bar-shaped hole 521 is vertically disposed. In a preferred embodiment, the first fastening member is a fastening screw 8, and the first fastening hole is a threaded hole and is matched with the fastening screw 8; the second fastener is provided as a mounting nut 9.

In a preferred embodiment, as shown in fig. 3, the adjustment assembly 6 comprises a bolt 61, a sleeve 62 and a first thimble 63, the bolt 61 being arranged on the support 5. Specifically, the bolt 61 passes through the second strip-shaped hole 521 of the second connecting portion 52 and is fastened by the mounting nut 9, and the bolt 61 is engaged with the mounting nut 9, so that the bolt 61 is fixedly disposed on the bracket 5. The sleeve 62 includes a first port and a second port, the first thimble 63 is movably disposed in the sleeve 62 and partially extends from the second port, the extending end of the first thimble 63 can abut against the outer peripheral surface of the upper glue piece 4, an internal thread is disposed at a position of the sleeve 62 close to the first port, the bolt 61 extends into the sleeve 62 from the first port and is in threaded fit with the sleeve 62, so as to adjust the length of the bolt 61 extending into the sleeve 62, so that the end of the bolt 61 can act on the first thimble 63, and further the first thimble 63 can abut against the outer peripheral surface of the upper glue piece 4.

In this embodiment, the first thimble 63 includes a cylindrical portion and a protruding portion, the protruding portion is disposed at an end of the cylindrical portion and protrudes from an outer surface of the cylindrical portion, the cylindrical portion protrudes from the second port, and the second port is shaped to match the cylindrical portion so as to prevent the protruding portion from being separated from the second port.

With this arrangement, the first thimble 63 can move along the axial direction of the sleeve 62, the overall length of the adjusting assembly 6 is changed, and the bolt 61 acts on the first thimble 63 and makes the first thimble 63 abut against the outer peripheral surface of the upper plywood sheet 4 by adjusting the relative positions of the sleeve 62 and the bolt 61.

Preferably, the adjusting assembly 6 further comprises an elastic member disposed in the sleeve 62, the elastic member is located between the first thimble 63 and the bolt 61, and two ends of the elastic member respectively act on the first thimble 63 and the bolt 61. In the present embodiment, the elastic member is provided as a spring 64.

With such an arrangement, when the position of the cemented lens is adjusted, the position of the end part of the measuring component 7, which abuts against the upper cemented piece 4, changes, and simultaneously the spring 64 in the adjusting component 6 on the other side of the upper cemented piece 4 contracts or extends, so as to change the overall length of the measuring component 7 and ensure that the first thimble 63 continuously abuts against the outer circumferential surface of the upper cemented piece 4; moreover, by adjusting the relative position of the sleeve 62 and the bolt 61, the elastic force of the spring 64 can be adjusted to ensure that the force of the first thimble 63 against the upper glue piece 4 is proper.

As an alternative embodiment, the measuring assembly 7 comprises a differential head 71 and a second thimble 72, the second thimble 72 is also used for abutting against the outer peripheral surface of the glue upper 4, the differential head 71 is arranged on the bracket 5, and the second thimble 72 is arranged at the end of the differential head 71 close to the glue lens. Specifically, the differential head 71 is also called a micrometer head, and is a measuring instrument which reads the axial movement amount of a micrometer screw and is provided with an installation part by using the principle of a screw pair, and the differential head 71 is composed of an immovable part installation sleeve, a shaft sleeve, a movable part measuring rod, a micro-cylinder and a micro-button, which is the prior art and is not described in detail herein. In this embodiment, the differential head 71 is a purchased product, one end of the differential head 71 is provided with a fine adjustment button, the other end is provided with a movable part measuring rod, the second thimble 72 is fixedly connected with the movable part measuring rod, and the second thimble 72 at the other end can advance or retreat synchronously by rotating the fine adjustment button, with the precision of 0.01 mm.

With such an arrangement, the gluing upper sheet 4 is precisely pushed to move through the differential head 71 and the second ejector pin 72, the position of the gluing upper sheet 4 is adjusted, and the precise distance of the movement can be known while the gluing upper sheet is moved.

In a preferred embodiment, the first needle 63 and the second needle 72 are made of plastic.

So set up, the thimble of plastics material supports on 4 surfaces on the veneer, avoids the thimble to crowd and hinders veneer upper segment 4.

It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments. The utility model provides a plurality of schemes contain the basic scheme of itself, mutual independence to restrict each other, but it also can combine each other under the condition of not conflicting, reaches a plurality of effects and realizes jointly.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A spherical product gluing centering device, comprising:

a mounting platform (1);

the tool (2) is arranged on the upper end face of the mounting platform (1) and is used for placing a cemented lens, and the cemented lens comprises an upper cemented sheet (4) and a lower cemented sheet (3) which are arranged up and down;

at least two sets of regulation structures, follow respectively cemented lens's different radial settings are in on mounting platform (1), each group the regulation structure all includes measurement component (7) and adjusting part (6), measurement component (7) with adjusting part (6) syntropy sets up and is located respectively the both sides portion of piece (4) on the veneer, each measurement component (7), each adjusting part (6) can set up the direction respectively along self and stretch out and draw back, in order to support the outer peripheral face of piece (4) on the veneer.

2. Spherical product gluing centering device according to claim 1, characterized in that said adjustment structures are provided in two groups and are arranged on said mounting platform (1) in a first horizontal direction and a second horizontal direction, respectively, said first horizontal direction and said second horizontal direction being perpendicular to each other.

3. The gluing centering device for spherical products according to claim 1, further comprising at least two bracket assemblies disposed on the upper end surface of said mounting platform (1), said bracket assemblies corresponding to said adjusting structures one to one, and each of said bracket assemblies comprising two brackets (5), two of said brackets (5) corresponding to said measuring assembly (7) and said adjusting assembly (6), respectively, said measuring assembly (7) and said adjusting assembly (6) being disposed on the corresponding brackets (5), respectively.

4. A spherical product gluing and centering device according to claim 3, characterized in that said bracket (5) is movably arranged on said mounting platform (1) in the same direction as the arrangement direction of its corresponding adjusting structure.

5. A spherical product cemented centering device according to claim 4, characterized in that the measuring component (7) and the adjusting component (6) are movably arranged on the corresponding brackets (5) respectively, and the moving direction is the same as the thickness direction of the cemented lens.

6. The gluing and centering device for spherical products according to claim 5, wherein each bracket (5) is of an L-shaped structure, the L-shaped structure comprises a first connecting part (51) and a second connecting part (52), the first connecting part (51) is provided with a first strip-shaped hole (511), the length direction of the first strip-shaped hole (511) is the same as the arrangement direction of the corresponding adjusting structure, the mounting platform (1) is provided with a first fastening hole, and a first fastening piece penetrates through the first strip-shaped hole (511) and the first fastening hole and is tightened to fixedly connect the bracket (5) and the mounting platform (1); the second connecting portion (52) is provided with a second strip-shaped hole (521), the length direction of the second strip-shaped hole (521) is the same as the thickness direction of the cemented lens, and the measuring component (7) or the adjusting component (6) penetrates through the second strip-shaped hole (521) and is tightened through a second fastener, so that the bracket (5) is fixedly connected with the measuring component (7) or the adjusting component (6).

7. A spherical product gluing and centering device as claimed in claim 3, wherein said adjusting assembly (6) comprises a bolt (61), a sleeve (62) and a first thimble (63), said bolt (61) being arranged on said support (5), said sleeve (62) comprising a first port and a second port, said first thimble (63) being movably arranged in said sleeve (62) and projecting from said second port portion to abut against the outer peripheral surface of said gluing top piece (4), said sleeve (62) being internally threaded near said first port, said bolt (61) projecting from said first port into said sleeve (62) and being threadedly engaged with said sleeve (62) to act on said first thimble (63).

8. The gluing and centering device for spherical products according to claim 7, wherein said adjusting assembly (6) further comprises an elastic member disposed inside said sleeve (62), said elastic member being located between said first needle (63) and said bolt (61), and both ends of said elastic member acting on said first needle (63) and said bolt (61), respectively.

9. The gluing and centering device for spherical products according to claim 7, wherein said measuring assembly (7) comprises a differential head (71) and a second thimble (72) for abutting against the outer peripheral surface of said gluing upper plate (4), said differential head (71) being arranged on said support (5), said second thimble (72) being arranged at the end of said differential head (71) close to said gluing lens.

10. The gluing and centering device for spherical products according to claim 9, wherein said first needle (63) and said second needle (72) are made of plastic.