Upper clamping device of optical fiber array connector

Abstract

The utility model provides an upper clamping device of an optical fiber array connector, which comprises a first fixing table 1, a second fixing table 2 and a position adjusting assembly 3, and is characterized in that the first fixing table 1 and the second fixing table 2 are respectively arranged on the position adjusting assembly 3; the first fixing table 1 is used for fixing the emergent port 41 and is arranged below the first clamp 51; the second fixing table 2 is used for fixing the receiving port 42 and is arranged below the second clamp 52; the position adjusting assembly 3 is used for adjusting the position of the first fixing table 1 and the position of the second fixing table 2, so that an emitting port 41 in the first fixing table 1 corresponds to the first clamp 51, and a receiving port 42 in the second fixing table 2 corresponds to the second clamp 52. And the problems of pollution and damage to the port caused by manual touch during manual clamping operation are avoided.

Description

Technical Field

[0001] This utility model relates to the field of optical communication technology, and in particular to an upper clamping device for a fiber optic array connector. Background Technology

[0002] With the increasing demand in the optical communication market and the surge in data transmission volume, the need for high-speed optical devices and modules is also growing. Coupling, as a key process step in the packaging of optical devices, directly determines the product's optical path loss and stability performance indicators through its methods and technologies. Optical device coupling is divided into optical transmitter coupling and optical receiver coupling. In existing coupling technologies, the initial coupling position of each optical device's port is manually adjusted based on experience. After manual adjustment, the port is clamped and subsequent coupling is performed.

[0003] In the above process, manually adjusting the initial coupling position of the port is often inefficient, resulting in low clamping efficiency. In addition, human touch may also cause contamination and damage to the port.

[0004] Therefore, overcoming the shortcomings of the existing technology is an urgent problem to be solved in this technical field. Utility Model Content

[0005] The problem this invention aims to solve is how to improve the positioning efficiency of the initial coupling position of the optical device port before clamping it, and reduce the probability of contamination and damage to the optical device port.

[0006] In a first aspect, a clamping device for a fiber optic array connector is provided, comprising: a first fixing stage 1, a second fixing stage 2, and a position adjustment assembly 3, wherein:

[0007] The first fixed platform 1 and the second fixed platform 2 are respectively disposed on the position adjustment component 3;

[0008] The first fixing platform 1 is used to fix the output port 41 and is placed below the first clamp 51; the second fixing platform 2 is used to fix the receiving port 42 and is placed below the second clamp 52.

[0009] The position adjustment component 3 is used to adjust the positions of the first fixed platform 1 and the second fixed platform 2 respectively, so that the emission port 41 on the first fixed platform 1 corresponds to the first clamp 51, and the receiving port 42 on the second fixed platform 2 corresponds to the second clamp 52.

[0010] Preferably, the position adjustment component 3 includes: a guide rail component 31, a first moving component 32, and a second moving component 33, wherein:

[0011] The first moving component 32 and the second moving component 33 are both disposed on the guide rail assembly 31, the first fixed platform 1 is disposed on the first moving component 32, and the second fixed platform 2 is disposed on the second moving component 33;

[0012] The guide rail assembly 31 is used for the second moving assembly 33 to move in the horizontal direction, the first moving assembly 32 is used to adjust the position of the first fixed platform 1 in the vertical direction, and the second moving assembly 33 is used to adjust the position of the second fixed platform 2 in the vertical direction.

[0013] Preferably, the guide rail assembly 31 includes: a horizontal guide rail 311 and a slide table 312, wherein:

[0014] The slide table 312 is slidably mounted on the horizontal guide rail 311;

[0015] The first moving component 32 is fixedly disposed at one end of the horizontal guide rail 311, and the second moving component 33 is disposed on the slide table 312;

[0016] The second moving component 33 is used to slide on the horizontal guide rail 311 via the slide table 312 to change the horizontal interval distance between the second moving component 33 and the first moving component 32, thereby changing the horizontal interval distance between the first fixed platform 1 and the second fixed platform 2.

[0017] Preferably, the first moving component 32 includes: a first docking member 321, a first vertical guide rail 322, and a first vertical moving member 323, wherein:

[0018] The first docking member 321 is fixedly disposed at one end of the horizontal guide rail 311, the first vertical guide rail 322 is fixedly disposed on the side wall of the first docking member 321 and extends in the vertical direction, and the first vertical moving member 323 is slidably disposed on the first vertical guide rail 322.

[0019] The first fixed platform 1 is disposed on the first vertical moving member 323.

[0020] Preferably, the second moving component 33 includes: a second docking member 331, a second vertical guide rail 332, and a second vertical moving member 333, wherein:

[0021] The second docking member 331 is disposed on the slide table 312, the second vertical guide rail 332 is fixedly disposed on the side wall of the second docking member 331 and extends in the vertical direction, and the second vertical moving member 333 is slidably disposed on the second vertical guide rail 332.

[0022] The second fixed platform 2 is disposed on the second vertical moving member 333.

[0023] Preferably, a first compression spring 34 is provided between the first vertical moving member 323 and the first docking member 321.

[0024] Preferably, a second compression spring 35 is provided between the second vertical moving member 333 and the second docking member 331.

[0025] Preferably, the guide rail assembly 31 further includes a motor 313, which is disposed at one end of the horizontal guide rail 311. The horizontal guide rail 311 is used to drive the slide table 312 so that the slide table 312 moves on the horizontal guide rail 311.

[0026] Preferably, the first fixed platform 1 is provided with a first adsorption hole 11, which is used to place the emission port 41 and to adsorb and fix the emission port 41.

[0027] Preferably, the second fixing platform 2 is provided with a second adsorption hole 21, which is used to place the receiving port 42 and to adsorb and fix the receiving port 42.

[0028] This utility model provides a clamping device for a fiber optic array connector, comprising: a first fixing platform 1, a second fixing platform 2, and a position adjustment component 3, wherein: the first fixing platform 1 and the second fixing platform 2 are respectively disposed on the position adjustment component 3; the first fixing platform 1 is used to fix the output port 41 and is placed below the first clamp 51; the second fixing platform 2 is used to fix the receiving port 42 and is placed below the second clamp 52; the position adjustment component 3 is used to adjust the positions of the first fixing platform 1 and the second fixing platform 2 respectively, so that the output port 41 on the first fixing platform 1 corresponds to the first clamp 51, and the receiving port 42 on the second fixing platform 2 corresponds to the second clamp 52; thus avoiding the problem of contamination and damage to the ports caused by human touch during manual clamping operations. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 A schematic diagram of the upper clamping device of a fiber optic array connector provided for an embodiment of this utility model;

[0031] Figure 2 A schematic diagram of the upper clamping device of another fiber array connector provided in an embodiment of this utility model;

[0032] Figure 3 A schematic diagram of the upper clamping device of another fiber array connector provided in an embodiment of this utility model;

[0033] Figure 4 A schematic diagram of the upper clamping device of another fiber optic array connector provided in this embodiment of the present utility model;

[0034] Figure 5 A schematic diagram of the clamp in the upper clamping device of a fiber optic array connector provided in an embodiment of the present invention during clamping;

[0035] The attached figures are numbered as follows:

[0036] First fixed platform 1; first suction hole 11; second fixed platform 2; second suction hole 21; position adjustment assembly 3; guide rail assembly 31; horizontal guide rail 311; slide table 312; motor 313; first moving assembly 32; first docking piece 321; first vertical guide rail 322; first vertical moving piece 323; second moving assembly 33; second docking piece 331; second vertical guide rail 332; second vertical moving piece 333; first compression spring 34; second compression spring 35; ejection port 41; receiving port 42; first clamp 51; second clamp 52. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0038] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0039] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this disclosure, unless otherwise stated, "a plurality of" means two or more. Furthermore, for example, the description may use the prefix "A" or "B" to describe the same type of nouns as two independent entities. In this case, the features defined with "A" and "B" are used only to distinguish between similar entities and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features.

[0040] In describing some embodiments, the terms "coupled," "coupled," and "connected," and their derivative expressions, may be used. For example, the term "connected" may be used in describing some embodiments to indicate that two or more components have direct physical or electrical contact with each other. Similarly, the term "coupled" may be used in describing some embodiments to indicate that two or more components have direct physical or electrical contact. However, the terms "connected" or "coupled" may also refer to two or more components that do not have direct contact with each other but still cooperate or interact with each other, such as "optical coupling" or "wireless connection." The embodiments disclosed herein are not necessarily limited to the scope of this invention.

[0041] In the description of this utility model, "A and / or B" will be used to represent specific features. The corresponding expressions include the following three combinations: only A, only B, and a combination of A and B.

[0042] As used in this invention, “about,” “approximately,” or “approximately” includes the stated value and the average value within an acceptable range of deviation from the specified value, wherein the acceptable range of deviation is determined by a person skilled in the art taking into account the measurement under discussion and the error associated with the measurement of the specified quantity, i.e., the limitations of the measurement system.

[0043] Unless the context otherwise requires, throughout the specification and claims, the term "comprising" is interpreted as openly inclusive, meaning "including, but not limited to." In the description of the specification, terms such as "one embodiment," "some embodiments," "exemplary embodiment," "example," "specific example," or "some examples" are intended to indicate that a particular feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of this disclosure. The illustrative representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics mentioned may be included in any suitable manner in any one or more embodiments or examples; that is, although they may be incorporated into embodiments or examples using the above terms for reasons such as order and position, it does not limit them to be incorporated in combination by a single embodiment or example.

[0044] Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0045] Example 1:

[0046] This embodiment provides an upper clamping device for a Mechanical Transfer Fiber Array (MT-FA) connector, such as... Figure 1 As shown, it includes: a first fixed platform 1, a second fixed platform 2, and a position adjustment assembly 3, wherein:

[0047] The first fixing platform 1 and the second fixing platform 2 are respectively disposed on the position adjustment component 3; the first fixing platform 1 is used to fix the output port 41 and is placed below the first clamp 51; the second fixing platform 2 is used to fix the receiving port 42 and is placed below the second clamp 52; the position adjustment component 3 is used to adjust the positions of the first fixing platform 1 and the second fixing platform 2 respectively, so that the output port 41 on the first fixing platform 1 corresponds to the first clamp 51, and the receiving port 42 on the second fixing platform 2 corresponds to the second clamp 52.

[0048] The output port 41 is the output port of the MT-FA, and the receiving port 42 is the receiving port of the MT-FA. The output port 41 and the receiving port 42 are connected by multiple optical fibers and connectors. In practical applications, the output port 41 and the receiving port 42 need to be clamped using appropriate fixtures, i.e., clamping operation. Based on this, the output port 41 and the receiving port 42 are loaded, i.e., other devices are coupled to the output port 41 and the receiving port 42 of the MT-FA.

[0049] The position adjustment component 3 is used to independently adjust the positions of the first fixed platform 1 and the second fixed platform 2, including vertical and horizontal position adjustments. By adjusting the positions of the first fixed platform 1 and the second fixed platform 2 individually, a preset interval distance and corresponding height position can be achieved between the output port 41 and the receiving port 42. The position adjustment component 3 can be driven by a stepper motor. Compared with manual adjustment, the device provided in this embodiment provides more precise position adjustment for the output port 41 and the receiving port 42, and also avoids damage and contamination to the output port 41 and the receiving port 42 caused by manual adjustment.

[0050] Furthermore, in this embodiment, it is necessary to adjust the positions of the output port 41 and the receiving port 42 separately. This requires a corresponding structural design for the position adjustment component 3. Therefore, this embodiment also involves the following design:

[0051] like Figure 2 As shown, the position adjustment component 3 includes: a guide rail component 31, a first moving component 32, and a second moving component 33, wherein: the first moving component 32 and the second moving component 33 are both disposed on the guide rail component 31, the first fixed platform 1 is disposed on the first moving component 32, and the second fixed platform 2 is disposed on the second moving component 33.

[0052] The guide rail assembly 31 is used for the second moving assembly 33 to move in the horizontal direction, the first moving assembly 32 is used to adjust the position of the first fixed platform 1 in the vertical direction, and the second moving assembly 33 is used to adjust the position of the second fixed platform 2 in the vertical direction.

[0053] The guide rail assembly 31 includes a horizontal guide rail 311 and a slide table 312, wherein the slide table 312 is slidably disposed on the horizontal guide rail 311; the first moving component 32 is fixedly disposed at one end of the horizontal guide rail 311, and the second moving component 33 is disposed on the slide table 312; the second moving component 33 is used to change the horizontal distance between the second moving component 33 and the first moving component 32 by sliding the slide table 312 on the horizontal guide rail 311, thereby changing the horizontal distance between the first fixed platform 1 and the second fixed platform 2.

[0054] The guide rail assembly 31 further includes a motor 313, which is disposed at one end of the horizontal guide rail 311. The horizontal guide rail 311 drives the slide table 312 to move on the horizontal guide rail 311. The motor 313 can be a linear motor, which drives the slide table 312 to move on the horizontal guide rail 311.

[0055] In this embodiment, by adjusting the position of the slide table 312 on the horizontal guide rail 311, the relative interval between the first moving component 32 and the second moving component 33 is adjusted, thereby adjusting the interval between the output port 41 and the receiving port 42. Under the condition that the optical fibers corresponding to the output port 41 and the receiving port 42 are not subjected to large stress, the interval between the output port 41 and the receiving port 42 is ensured to be consistent with the interval between the first clamp 51 and the second clamp 52, so that the output port 41 corresponds to the first clamp 51 and the receiving port 42 corresponds to the second clamp 52.

[0056] The specific adjustment method can be as follows: After placing the transmitting port 41 and the receiving port 42 on the first fixed platform 1 and the second fixed platform 2 respectively, image recognition is performed on the transmitting port 41 and the receiving port 42 to obtain their coordinate positions. The coordinate positions of the transmitting port 41 and / or the receiving port 42 are compared with preset coordinate positions. When the difference between the coordinate positions of the transmitting port 41 and / or the receiving port 42 and the preset coordinate positions is greater than a preset threshold, it is determined that the position of the transmitting port 41 and / or the receiving port 42 does not meet the requirements. The interval between the first moving component 32 and / or the second moving component 33 is adjusted, and the current coordinate positions of the transmitting port 41 and the receiving port 42 are acquired in real time and compared with preset coordinate positions until the difference between the coordinate positions of the transmitting port 41 and the receiving port 42 and the preset coordinate positions is less than or equal to a preset threshold. It is then determined that the positions of the transmitting port 41 and the receiving port 42 meet the requirements. Based on the above, a clamping operation is performed on the transmitting port 41 and the receiving port 42 to ensure that the transmitting port 41 and the receiving port 42 correspond to their respective clamps. The preset coordinate positions and preset thresholds are set by those skilled in the art based on actual conditions.

[0057] Furthermore, in order to enable the first fixed platform 1 and the second fixed platform 2 to move in the vertical direction, this embodiment relates to the following design for the first moving component 32 and the second moving component 33:

[0058] like Figure 3 As shown, the first moving component 32 includes: a first docking member 321, a first vertical guide rail 322, and a first vertical moving member 323, wherein: the first docking member 321 is fixedly disposed at one end of the horizontal guide rail 311, the first vertical guide rail 322 is fixedly disposed on the side wall of the first docking member 321 and extends vertically, and the first vertical moving member 323 is slidably disposed on the first vertical guide rail 322; the first fixed platform 1 is disposed on the first vertical moving member 323. Furthermore, a housing (not shown in the figure) is fixedly disposed on the outside of the first vertical guide rail 322, and this housing is disposed on other structural components (not shown in the figure).

[0059] like Figure 3 As shown, the second moving component 33 includes: a second docking member 331, a second vertical guide rail 332, and a second vertical moving member 333, wherein: the second docking member 331 is disposed on the slide table 312, the second vertical guide rail 332 is fixedly disposed on the side wall of the second docking member 331 and extends vertically, and the second vertical moving member 333 is slidably disposed on the second vertical guide rail 332; the second fixed platform 2 is disposed on the second vertical moving member 333. A housing (not shown in the figure) is also fixedly disposed on the outside of the second vertical guide rail 332, and this housing is disposed on other structural components (not shown in the figure).

[0060] In this embodiment, both the first moving component 32 and the second moving component 33 can be cylinder slides.

[0061] Furthermore, in this embodiment, after adjusting the output port 41 and the receiving port 42 to the required positions by adjusting in the horizontal and / or vertical directions, the output port 41 can be clamped by the first clamp 51, and the receiving port 42 can be clamped by the second clamp 52. Considering that during the clamping process, the first clamp 51 and the second clamp 52 need to press down from above the corresponding ports to allow the corresponding ports to enter the openings of the clamps before clamping, if the height of the ports is too high or the downward pressure of the clamps is too great, it may put excessive pressure on the ports, thereby causing damage to the ports. Therefore, this embodiment also involves the following design:

[0062] like Figure 3 As shown, a first compression spring 34 is provided between the first vertical moving member 323 and the first docking member 321. A second compression spring 35 is provided between the second vertical moving member 333 and the second docking member 331.

[0063] In this embodiment, when the height of the port is too high or the downward pressure of the clamp is too great, the first compression spring 34 or the second compression spring 35 will be compressed, and the pressure applied by the clamp to the port will be absorbed by the first compression spring 34 or the second compression spring 35, so as to avoid the port being subjected to excessive pressure from the clamp and causing damage to the port.

[0064] Furthermore, in this embodiment, when the transmitting port 41 and the receiving port 42 are respectively fixed on the first fixing platform 1 and the second fixing platform 2, while ensuring the stability of the fixing, it is necessary to avoid damage to the ports caused by the force applied by the fixing. Therefore, this embodiment also involves the following design:

[0065] like Figure 3 and Figure 4As shown, the first fixing platform 1 is provided with a first adsorption hole 11, which is used to place the emission port 41 and to adsorb and fix the emission port 41. The second fixing platform 2 is provided with a second adsorption hole 21, which is used to place the receiving port 42 and to adsorb and fix the receiving port 42.

[0066] It should be noted that in this embodiment, different sizes of adsorption holes can be designed according to different models of optical module products, so that the adsorption holes on the fixing platform can correspond to the size of the port of the corresponding product.

[0067] like Figure 5 The diagram shows the clamping of the first clamp 51 and the second clamp 52 on the output port 41 and the receiving port 42, respectively.

[0068] In summary, the upper clamping device for a fiber optic array connector provided in this embodiment can achieve the following beneficial effects:

[0069] 1. When clamping the output port 41 and the receiving port 42, this device can be used to adjust the position of the corresponding ports instead of manually, avoiding problems such as dirt and damage to the output port 41 and the receiving port 42 caused by human touch.

[0070] 2. Fixing the ejector port 41 and receiver port 42 through the adsorption hole ensures the accuracy of their positions, thereby guaranteeing the clamping accuracy of the ejector port 41 and receiver port 42. Based on this, the equipment identifies and picks up the ejector port 41 and receiver port 42, thus ensuring high consistency in subsequent feeding of the ejector port 41 and receiver port 42.

[0071] 3. Before the clamping operation, the above-mentioned device is used to fix and adjust the position of the output port 41 and the receiving port 42, thereby ensuring clamping efficiency and automation, which is beneficial for mass production.

[0072] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An upper clamp device for a fiber array connector, comprising: include: The system comprises a first fixed platform (1), a second fixed platform (2), and a position adjustment assembly (3), wherein: The first fixed platform (1) and the second fixed platform (2) are respectively disposed on the position adjustment component (3); The first fixing platform (1) is used to fix the output port (41) and is placed below the first clamp (51); the second fixing platform (2) is used to fix the receiving port (42) and is placed below the second clamp (52); The position adjustment component (3) is used to adjust the positions of the first fixed platform (1) and the second fixed platform (2) respectively, so that the emission port (41) on the first fixed platform (1) corresponds to the first clamp (51), and the receiving port (42) on the second fixed platform (2) corresponds to the second clamp (52).

2. The optical fiber array connector upper clamp apparatus of claim 1, wherein, The position adjustment component (3) includes: a guide rail component (31), a first moving component (32), and a second moving component (33), wherein: The first moving component (32) and the second moving component (33) are both disposed on the guide rail assembly (31), the first fixed platform (1) is disposed on the first moving component (32), and the second fixed platform (2) is disposed on the second moving component (33); The guide rail assembly (31) is used for the second moving assembly (33) to move horizontally, the first moving assembly (32) is used to adjust the position of the first fixed platform (1) in the vertical direction, and the second moving assembly (33) is used to adjust the position of the second fixed platform (2) in the vertical direction.

3. The optical fiber array connector upper clamp device of claim 2, wherein, The guide rail assembly (31) includes: a horizontal guide rail (311) and a slide (312), wherein: The slide table (312) is slidably mounted on the horizontal guide rail (311); The first moving component (32) is fixedly disposed at one end of the horizontal guide rail (311), and the second moving component (33) is disposed on the slide table (312); The second moving component (33) is used to slide on the horizontal guide rail (311) via the slide table (312) to change the horizontal distance between the second moving component (33) and the first moving component (32), thereby changing the horizontal distance between the first fixed platform (1) and the second fixed platform (2).

4. The optical fiber array connector upper clamp device of claim 3, wherein, The first moving component (32) includes: a first docking member (321), a first vertical guide rail (322), and a first vertical moving member (323), wherein: The first docking member (321) is fixedly disposed at one end of the horizontal guide rail (311), the first vertical guide rail (322) is fixedly disposed on the side wall of the first docking member (321) and extends in the vertical direction, and the first vertical moving member (323) is slidably disposed on the first vertical guide rail (322). The first fixed platform (1) is disposed on the first vertical moving member (323).

5. The over clamp device of the fiber array connector according to claim 3, wherein, The second moving component (33) includes: a second docking member (331), a second vertical guide rail (332), and a second vertical moving member (333), wherein: The second docking piece (331) is arranged on the sliding table (312), the second vertical guide rail (332) is fixedly arranged on the side wall of the second docking piece (331) and extends in the vertical direction, and the second vertical moving piece (333) is slidingly arranged on the second vertical guide rail (332). The second fixed table (2) is arranged on the second vertical moving piece (333).

6. The optical fiber array connector upper clamp apparatus of claim 4, wherein, A first compression spring (34) is arranged between the first vertical moving piece (323) and the first docking piece (321).

7. The optical fiber array connector upper clamp apparatus of claim 5, wherein, A second compression spring (35) is arranged between the second vertical moving piece (333) and the second docking piece (331).

8. The over clamp device of the fiber array connector according to claim 3, wherein, The guide rail assembly (31) further comprises a motor (313), which is arranged at one end of the horizontal guide rail (311), and the horizontal guide rail (311) is used for driving the sliding table (312) to move on the horizontal guide rail (311).

9. The over clamp device of a fiber array connector of claim 1, wherein, The first fixed table (1) is provided with a first adsorption hole (11), the first adsorption hole (11) is used for placing an emitting port (41), and the first adsorption hole (11) is used for adsorbing and fixing the emitting port (41).

10. The over clamp device of the fiber array connector of claim 1, wherein, The second fixed table (2) is provided with a second adsorption hole (21), the second adsorption hole (21) is used for placing a receiving port (42), and the second adsorption hole (21) is used for adsorbing and fixing the receiving port (42).

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