clamping mechanism
By coordinating the carrier component, the conduction component, and the pressure cover component, the test board and the circuit board to be tested are clamped simultaneously, which solves the problems of oxidation and copper leakage of the test board and improves the test accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FU TAI HUA IND SHENZHEN
- Filing Date
- 2025-04-02
- Publication Date
- 2026-06-16
AI Technical Summary
In existing technologies, frequent bonding of the detection board and the circuit board under test leads to oxidation and copper leakage on the detection board, affecting the accuracy of the detection.
By employing the coordinated operation of load-bearing components, conductive components, and pressure cap components, and through a layered clamping structure, the first and second products are simultaneously clamped, avoiding direct and frequent contact between the mating plates.
To ensure the stability of the test board, improve the test accuracy of the circuit board under test, and avoid problems such as oxidation and copper leakage.
Smart Images
Figure CN224366073U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of product clamping fixture technology, specifically to a clamping mechanism. Background Technology
[0002] In actual production and processing, product testing is usually required, such as testing newly produced circuit boards and testing circuit boards with defects. Currently, the general method for testing circuit boards is as follows: the circuit board to be tested and the test board are heated and joined together, then the joined circuit board to be tested is placed in the testing position, and after the test is completed, the circuit board to be tested and the test board are removed from the testing position and separated. However, because the test board needs to be joined with the circuit board to be tested frequently, the test board is prone to oxidation, copper leakage, etc., which can lead to inaccurate testing of the circuit board to be tested and adversely affect the accuracy of the testing. Utility Model Content
[0003] In view of the above, it is necessary to propose a clamping mechanism to achieve synchronous clamping of the first product and the second product, avoid poor contact caused by direct and frequent mating of the first product and the second product, ensure the stability of the first product in use, and thus improve the detection accuracy of the second product.
[0004] This application provides a clamping mechanism for clamping a first product and a second product, including:
[0005] A support component for supporting the first product;
[0006] The conductive component includes a base and a plurality of guide pins. The plurality of guide pins are arranged on the base according to a preset trajectory. Each guide pin passes through the base. One end of the plurality of guide pins is used to abut against the first product, and the other end of the plurality of guide pins is used to support and abut against the second product.
[0007] A pressure cap assembly is connected to the carrier assembly to press and fix the second product, the conductive assembly, and the first product onto the carrier assembly.
[0008] In some embodiments, the base includes an upper plate and a lower plate, the upper plate being connected to the lower plate, each guide pin penetrating both the upper plate and the lower plate, the upper plate being disposed opposite to the pressure cap assembly, and the lower plate being disposed opposite to the support assembly.
[0009] In some embodiments, the base further includes a plurality of guide pins, which pass through the upper plate and the lower plate, and the two ends of the plurality of guide pins are respectively adapted to be inserted into the first socket of the first product and the second socket of the second product.
[0010] In some embodiments, the supporting assembly includes a carrier plate, a plurality of limiting members, and a plurality of guide rods. The carrier plate is used to support the first product, the conductive assembly, and the second product. The plurality of limiting members are all disposed on the side of the carrier plate facing the conductive assembly, and the plurality of limiting members are distributed around the periphery of the carrier plate. The plurality of limiting members are used to enclose the first product, the conductive assembly, and the second product. The plurality of guide rods are selectively disposed on the side of at least one of the limiting members away from the carrier plate. The pressure cap assembly has a plurality of guide holes on the side facing the supporting assembly. When the pressure cap assembly is connected to the supporting assembly, the pressure cap assembly abuts against the plurality of limiting members, and the plurality of guide rods are respectively adapted to be inserted into the plurality of guide holes.
[0011] In some embodiments, the bearing assembly further includes a rotating shaft, a snap-fit member, a hook, and a stop portion. The rotating shaft is disposed on one of the limiting members. The middle part of the snap-fit member is rotatably disposed on the rotating shaft. The hook and the stop portion are respectively disposed at both ends of the snap-fit member. The hook has an arc-shaped barb structure. The stop portion is located on the side of the carrier plate away from the limiting member. The periphery of the cover assembly is provided with a snap-fit portion adapted to the hook. When the cover assembly is connected to the bearing assembly, the snap-fit portion cooperates with the hook to connect the cover assembly to the bearing assembly.
[0012] In some embodiments, the conductive component further includes a plurality of protrusions disposed on the periphery of the base. When the bearing component carries the first product, the conductive component and the second product, each protrusion falls between two adjacent limiting members, and the plurality of protrusions surround the first product.
[0013] In some embodiments, the carrier plate has a plurality of through holes, and the plurality of through holes are distributed on the carrier plate according to a preset rule.
[0014] In some embodiments, the cap assembly includes a pressure plate and a clamping member. The pressure plate has an annular structure, and the clamping member is connected to the pressure plate and located inside the pressure plate. When the cap assembly is connected to the carrier assembly, the pressure plate is connected to the carrier assembly, and the clamping member presses the second product.
[0015] In some embodiments, each guide needle has hemispherical head-shaped structures at both ends.
[0016] In some embodiments, the carrier component and / or the gland component are made of stainless steel, which is coated with Teflon; and / or, the base is made of glass.
[0017] In actual use, the aforementioned clamping mechanism involves placing a first product, such as a test board, on the carrier component, then placing the conductive component on the first product, with one end of each of the multiple guide pins abutting against the first product. Next, a second product, such as a circuit board to be tested, is placed on the conductive component, with the other ends of the multiple guide pins bearing and abutting against the second product. A pressure cap component is then placed on the second product and connected to the carrier component. This connection secures the second product, the conductive component, and the first product to the carrier component, thereby enabling electrical communication between the first and second products through the guide pins of the conductive component. The clamping mechanism, holding the first and second products, is placed in the test position for testing. After testing, the clamping mechanism is removed from the test position and disassembled, allowing the first and second products to be retrieved, thus achieving the clamping and testing of the first and second products.
[0018] The clamping mechanism provided in this application embodiment, through the coordinated cooperation of the bearing component, the conductive component and the pressure cover component, achieves synchronous clamping of the first product and the second product through a layered clamping structure. This avoids poor contact caused by direct and frequent board assembly of the first product and the second product, and avoids oxidation, copper leakage and other problems caused by frequent board assembly of the first product with the second product. This ensures the stability of the first product in use and improves the detection accuracy of the second product. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the clamping mechanism, the first product, and the second product provided in the embodiments of this application.
[0020] Figure 2 yes Figure 1 The diagram shows an exploded view of the clamping mechanism, the first product, and the second product.
[0021] Figure 3 yes Figure 2 An exploded view of the conducting component in the clamping mechanism shown.
[0022] Explanation of main component symbols: clamping mechanism 100, bearing assembly 10, carrier plate 11, through hole 111, limiting member 12, guide rod 13, rotating shaft 14, snap-fit member 15, hook 16, blocking part 17, bearing part 18, connecting assembly 20, base 21, upper plate 211, upper insertion hole 212, lower plate 213, lower insertion hole 214, guide pin 215, guide pin 22, protrusion 23, first protrusion 231, second protrusion 232, pressure cap assembly 30, guide hole 31, snap-fit part 32, pressure plate 33, clamping member 34, clearance groove 35, first product 200, first insertion hole 201, second product 300, second insertion hole 301. Detailed Implementation
[0023] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.
[0024] In the description of this application, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application. Furthermore, 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. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, it should be noted that "a plurality of" means two or more, unless otherwise explicitly specified.
[0025] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that allows communication between the components; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0026] The following will describe some embodiments of this application in detail with reference to the accompanying drawings.
[0027] Please see Figure 1 This application provides a clamping mechanism 100. The clamping mechanism 100 is used to clamp a first product 200 and a second product 300. The first product 200 can be a test board, and the second product 300 can be a circuit board to be tested. The test board can be used to simulate the circuit of the circuit board after it is installed, thereby realizing the operational testing of the circuit board to be tested. It is understood that in other embodiments, the first product 200 can be the circuit board to be tested, and the second product 300 can be the test board; or, the first product 200 and the second product 300 can be other products, and this application does not specifically limit this.
[0028] Please see Figure 1 , Figure 2 and Figure 3The clamping mechanism 100 includes a support component 10, a conductive component 20, and a pressure cap component 30. The conductive component 20 is connected between the first product 200 and the second product 300, that is, the first product 200 and the second product 300 are electrically connected through the conductive component 20. The support component 10 is used to support the first product 200, the conductive component 20, and the second product 300. The pressure cap component 30 is used to press and fix the second product 300, the conductive component 20, and the first product 200 onto the support component 10, thereby ensuring a stable connection between the first product 200, the conductive component 20, and the second product 300 and ensuring the clamping stability of the clamping mechanism 100.
[0029] Specifically, the support component 10 is used to support the first product 200, that is, when the clamping mechanism 100 clamps the first product 200 and the second product 300, the first product 200 is placed on the support component 10. The conductive component 20 includes a base 21 and a plurality of guide pins 22. The shape of the base 21 is roughly similar to the shape of the first product 200 and the second product 300. The plurality of guide pins 22 are arranged on the base 21 according to a preset trajectory, and each guide pin 22 penetrates the base 21. The preset trajectory can be understood as the approximate trajectory of the circuit on the first product 200 and the second product 300. The two ends of the plurality of guide pins 22 protrude from opposite sides of the base 21, one end of the plurality of guide pins 22 is used to abut against the first product 200, and the other end of the plurality of guide pins 22 is used to support and abut against the second product 300. The pressure cap component 30 is connected to the support component 10 to press and fix the second product 300, the conductive component 20 and the first product 200 to the support component 10.
[0030] In actual use, the clamping mechanism 100 places the first product 200 on the carrier component 10, then places the conductive component 20 on the first product 200, so that one end of the plurality of guide pins 22 abuts against the first product 200. Then, the second product 300 is placed on the conductive component 20, so that the other end of the plurality of guide pins 22 carries and abuts against the second product 300. Then, the capping component 30 is placed on the second product 300, and the capping component 30 is connected to the carrier component 10. By connecting the capping component 30 to the carrier component 10, the capping component 30 presses and fixes the second product 300, the conductive component 20 and the first product 200 on the carrier component 10, thereby making the first product 200 and the second product 300 electrically connected through the guide pins 22 of the conductive component 20. The clamping mechanism 100 that clamps the first product 200 and the second product 300 is placed in the test position for testing. After the test is completed, the clamping mechanism 100 is removed from the test position and disassembled, and then the first product 200 and the second product 300 are taken out, thereby realizing the clamping and testing of the first product 200 and the second product 300.
[0031] In this embodiment, the supporting component 10 includes a carrier plate 11, a plurality of limiting members 12, and a plurality of guide rods 13. The carrier plate 11 is used to support the first product 200, the conductive component 20, and the second product 300. The plurality of limiting members 12 are all disposed on the side of the carrier plate 11 facing the conductive component 20, and the plurality of limiting members 12 are distributed around the periphery of the carrier plate 11. The plurality of limiting members 12 are used to enclose the first product 200, the conductive component 20, and the second product 300, and the plurality of limiting members 12 can also be used to support the capping component 30. The plurality of guide rods 13 are selectively disposed on the side of at least one limiting member 12 away from the carrier plate 11. The capping component 30 has a plurality of guide holes 31 on the side facing the supporting component 10, and the number of guide holes 31 is equal to the number of guide rods 13 and they correspond one-to-one. When the capping component 30 is connected to the supporting component 10, the capping component 30 abuts against the plurality of limiting members 12, and the plurality of guide rods 13 are respectively adapted to be inserted into the plurality of guide holes 31. In this embodiment, the number of guide rods 13 and guide holes 31 can both be three, with the three guide rods 13 disposed on three limiting members 12. It is understood that in other embodiments, the number of guide rods 13 and guide holes 31 can be more or fewer, depending on the actual situation. More or fewer guide rods 13 can be disposed on one, two, four, or more limiting members 12.
[0032] Thus, by setting the specific structure of the above-mentioned bearing component 10, the first product 200, the conductive component 20 and the second product 300 are surrounded by multiple limiting members 12 to ensure the positional accuracy of the first product 200, the conductive component 20 and the second product 300; through the cooperation of multiple guide rods 13 and multiple guide holes 31, the connection accuracy between the cap component 30 and the bearing component 10 is high, which is conducive to improving the clamping accuracy.
[0033] To ensure a stable connection between the support assembly 10 and the cap assembly 30, in this embodiment, the support assembly 10 further includes a rotating shaft 14, a snap-fit member 15, a hook 16, and a stop portion 17. The rotating shaft 14 is disposed on one of the limiting members 12; specifically, the rotating shaft 14 is disposed on the outer side of a limiting member 12 on the short side of the carrier plate 11. The middle part of the snap-fit member 15 is rotatably disposed on the rotating shaft 14. The hook 16 and the stop portion 17 are respectively disposed at the upper and lower ends of the snap-fit member 15. The hook 16 has an arc-shaped barb structure, and the stop portion 17 is located on the side of the carrier plate 11 opposite to the limiting member 12. The cap assembly 30 has a snap-fit portion 32 on its periphery that matches the hook 16; specifically, the short side of the cap assembly 30 has a snap-fit portion 32. When the cap assembly 30 is connected to the support assembly 10, the snap-fit portion 32 engages with the hook 16 to connect the cap assembly 30 to the support assembly 10. Among them, the four corners of the carrier plate 11 opposite to the pressure cap assembly 30 are respectively provided with support parts 18. By providing support parts 18, the space below the carrier plate 11 is provided to accommodate the snap-fit member 15 and the blocking part 17.
[0034] In this embodiment, there are two of each of the following components: pivot 14, snap-fit 15, hook 16, stop 17, and snap-fit 32, which are respectively disposed on the two short sides of the carrier plate 11 and the pressure cap assembly 30. It is understood that in other embodiments, the number of each component may be greater than that specified in this application; however, this embodiment does not impose a specific limitation on this.
[0035] Thus, by configuring the aforementioned rotating shaft 14, latching member 15, latching hook 16, abutting part 17, and latching part 32, when the cap assembly 30 is connected to the carrier assembly 10, the latching part 32 cooperates with the latching hook 16, causing the cap assembly 30 to be pressed against the multiple limiting members 12 under the pressure of the latching hook 16. Furthermore, the abutting part 17 ensures that the position of the latching hook 16 does not easily change, ensuring a stable connection between the cap assembly 30 and the carrier assembly 10. Moreover, by rotating the latching member 15 on the rotating shaft 14, the latching member 15 can be slightly offset, allowing the latching part 32 on the cap assembly 30 to pass over the latching hook 16, ensuring smooth clamping and unclamping of the cap assembly 30 and the carrier assembly 10.
[0036] In this embodiment, a plurality of through holes 111 are formed on the carrier plate 11. The plurality of through holes 111 are distributed on the carrier plate 11 according to a preset rule, wherein the preset rule can be distributed at preset intervals, and the through holes 111 can be strip-shaped holes. In this way, by forming a plurality of through holes 111 on the carrier plate 11, it is ensured that the first product 200, the conductive component 20 and the second product 300 can dissipate heat during testing, and damage to the first product 200, the conductive component 20 and the second product 300 due to poor heat dissipation is avoided.
[0037] In this embodiment, at least one of the following components of the bearing assembly 10—the carrier plate 11, the limiting member 12, the guide rod 13, the rotating shaft 14, the snap-fit member 15, the hook 16, the abutment part 17, and the bearing part 18—is made of stainless steel, and Teflon is applied to the stainless steel. Thus, by limiting the material of the bearing assembly 10 to stainless steel, the structural strength of the bearing assembly 10 is ensured. The Teflon coating on the stainless steel increases its protection and prevents the bearing assembly 10 from scratching other mechanisms.
[0038] In this embodiment, the cap assembly 30 includes a pressure plate 33 and a clamping member 34. The pressure plate 33 has an annular structure, specifically a rectangular annular structure. The clamping member 34 is connected to the pressure plate 33 and located inside the pressure plate 33. When the cap assembly 30 is connected to the carrier assembly 10, the pressure plate 33 is connected to the carrier assembly 10, and the clamping member 34 clamps the second product 300. In this embodiment, there are two clamping members 34. It is understood that in other embodiments, the number of clamping members 34 may be more or less. Thus, by setting the specific structure of the cap assembly 30 described above, the weight of the cap assembly 30 is reduced, making it easier to pick up and put down the cap assembly 30, and also facilitating the clamping and unclamping of the cap assembly 30 with the carrier assembly 10. A guide hole 31 is formed on the pressure plate 33, and two snap-fit parts 32 are respectively provided on the two short sides of the pressure plate 33.
[0039] In this embodiment, at least one of the pressure plate 33, the clamping member 34, and the snap-fit portion 32 of the cap assembly 30 is made of stainless steel, and Teflon is applied to the stainless steel. Thus, by limiting the material of the cap assembly 30 to stainless steel, the structural strength of the cap assembly 30 is ensured; by applying Teflon to the stainless steel, protection of the stainless steel is increased, while preventing the cap assembly 30 from scratching other mechanisms.
[0040] In this embodiment, the base 21 includes an upper plate 211 and a lower plate 213. The upper plate 211 is connected to the lower plate 213, and each guide pin 22 passes through both the upper plate 211 and the lower plate 213. The upper plate 211 is disposed opposite to the pressure cap assembly 30, and the lower plate 213 is disposed opposite to the support assembly 10. Thus, by setting the base 21 as having a detachable upper plate 211 and lower plate 213, it is beneficial to reduce the difficulty of the guide pin 22 passing through the base 21.
[0041] To improve the connection accuracy between the conductive component 20 and the first product 200 and the second product 300, in this embodiment, the base 21 further includes multiple guide pins 215. The multiple guide pins 215 penetrate the upper plate 211 and the lower plate 213, and their two ends are respectively adapted to be inserted into the first insertion hole 201 of the first product 200 and the second insertion hole 301 of the second product 300. The upper plate 211 has an upper insertion hole 212, and the lower plate 213 has a lower insertion hole 214; the guide pins 215 penetrate both the upper insertion hole 212 and the lower insertion hole 214. In this embodiment, the number of guide pins 215 is three. Understandably, in other embodiments, the number of guide pins 215 can be adaptively increased or decreased according to the number of first sockets 201 on the first product 200 and second sockets 301 on the second product 300, and the setting position of the guide pins 215 can also be adaptively changed according to the position of the first sockets 201 on the first product 200 and the second sockets 301 on the second product 300. This application embodiment does not specifically limit this. Thus, by setting the aforementioned guide pins 215, the guide pins 215 are inserted into the first sockets 201 and the second sockets 301, thereby improving the connection accuracy between the conductive component 20 and the first product 200 and the second product 300.
[0042] To improve the accuracy of the conductive component 20, the first product 200, and the second product 300 when placed on the supporting component 10, in this embodiment, the conductive component 20 further includes a plurality of protrusions 23. The plurality of protrusions 23 are disposed on the periphery of the base 21. When the supporting component 10 carries the first product 200, the conductive component 20, and the second product 300, each protrusion 23 falls between two adjacent limiting members 12, and the plurality of protrusions 23 surround the first product 200. The protrusions 23 may include a first protrusion 231 disposed on the upper plate 211 and a second protrusion 232 disposed on the lower plate 213. The first protrusion 231 and the second protrusion 232 are connected to form the protrusion 23. Thus, by setting the aforementioned protrusions 23, when the supporting assembly 10 carries the first product 200, the conducting assembly 20, and the second product 300, each protrusion 23 falls between two adjacent limiting members 12, thereby improving the accuracy of the conducting assembly 20, the first product 200, and the second product 300 when placed on the supporting assembly 10. Furthermore, since multiple protrusions 23 can also enclose the first product 200, the connection accuracy between the conducting assembly 20 and the first product 200 is further improved.
[0043] In this embodiment, in order to avoid the protrusions 23 on the base 21, the pressure plate 33 of the pressure cap assembly 30 is provided with a number of avoidance grooves 35 on the side facing the conduction assembly 20, which are equal to and correspond one-to-one with the protrusions 23. In this way, by providing avoidance grooves 35 on the pressure plate 33, the pressure plate 33 avoids the protrusions 23 through the avoidance grooves 35, ensuring a smooth connection between the pressure cap assembly 30 and the support assembly 10.
[0044] In this embodiment, both ends of each guide pin 22 are hemispherical head structures. Thus, by limiting both ends of the guide pin 22 to hemispherical head structures, a stable connection can be achieved between the guide pin 22 and the first product 200 and the second product 300, avoiding gaps between the guide pin 22 and the first product 200 and the second product 300 that would affect detection accuracy.
[0045] In this embodiment, the base 21 can be made of glass, meaning both the upper plate 211 and the lower plate 213 are made of glass. Thus, by limiting the material of the base 21 to glass, firstly, the hardness of the base 21 is ensured, enabling it to stably support the second product 300 and accommodate the multiple guide pins 22; secondly, electrical conductivity of the base 21 is prevented, ensuring the detection accuracy of the first product 200 and the second product 300.
[0046] The clamping mechanism 100 provided in this application embodiment, through the coordinated cooperation of the bearing component 10, the conductive component 20 and the pressure cover component 30, achieves synchronous clamping of the first product 200 and the second product 300 through a layered clamping structure. This avoids poor contact caused by the direct and frequent mating of the first product 200 and the second product 300, and avoids oxidation, copper leakage and other problems caused by the frequent mating of the first product 200 and the second product 300. This ensures the stability of the first product 200 in use, thereby improving the detection accuracy of the second product 300.
[0047] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be embraced within this application.
[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.
Claims
1. A clamping mechanism for clamping a first product and a second product, characterized in that, The utility model relates to a product loading and fixing device, including: A bearing assembly for bearing the first product; A lead-through assembly including a base and a plurality of lead-through pins, the plurality of lead-through pins are arranged on the base according to a preset track, each of the lead-through pins penetrates the base, one end of the plurality of lead-through pins is used for abutting against the first product, and the other end of the plurality of lead-through pins is used for bearing and abutting against the second product; A gland assembly connected with the bearing assembly to tightly fix the second product, the lead-through assembly and the first product on the bearing assembly.
2. The clamping mechanism of claim 1, wherein, The base includes an upper plate and a lower plate, the upper plate is connected with the lower plate, each of the lead-through pins penetrates the upper plate and the lower plate, the upper plate is oppositely arranged with the gland assembly, and the lower plate is oppositely arranged with the bearing assembly.
3. The clamping mechanism of claim 2, wherein, The base further includes a plurality of guide pins, the plurality of guide pins penetrates the upper plate and the lower plate, and two ends of the plurality of guide pins are respectively adapted to be inserted into a first insertion hole of the first product and a second insertion hole of the second product.
4. The clamping mechanism of claim 1, wherein The bearing assembly includes a carrier plate, a plurality of limiting members and a plurality of guide rods, the carrier plate is used for bearing the first product, the lead-through assembly and the second product, the plurality of limiting members are arranged on one side of the carrier plate facing the lead-through assembly, and the plurality of limiting members are distributed on the periphery of the carrier plate, the plurality of limiting members are used for enclosing the first product, the lead-through assembly and the second product, and the plurality of guide rods are selectively arranged on one side of at least one limiting member away from the carrier plate, wherein a plurality of guide holes are formed on one side of the gland assembly facing the bearing assembly, when the gland assembly is connected with the bearing assembly, the gland assembly abuts against the plurality of limiting members, and the plurality of guide rods are respectively adapted to be inserted into the plurality of guide holes.
5. The clamping mechanism of claim 4, wherein, The bearing assembly further includes a pivot, a clamping member, a clamping hook and a blocking part, the pivot is arranged in one of the limiting members, the middle part of the clamping member is rotationally arranged on the pivot, the clamping hook and the blocking part are respectively arranged on two ends of the clamping member, the clamping hook is an arc-shaped hook structure, and the blocking part is located on one side of the carrier plate away from the limiting member, wherein a clamping part matched with the clamping hook is arranged on the periphery of the gland assembly, when the gland assembly is connected with the bearing assembly, the clamping part cooperates with the clamping hook to connect the gland assembly with the bearing assembly.
6. The clamping mechanism of claim 4, wherein, The lead-through assembly further includes a plurality of protruding members, the plurality of protruding members are arranged on the periphery of the base, when the bearing assembly bears the first product, the lead-through assembly and the second product, each of the protruding members falls between the corresponding adjacent two limiting members, and the plurality of protruding members enclose the first product.
7. The clamping mechanism of claim 4, wherein The carrier plate is provided with a plurality of through holes, and the plurality of through holes are distributed on the carrier plate according to a preset rule.
8. The clamping mechanism of claim 1, wherein, The gland assembly includes a pressing plate and a pressing member, the pressing plate is a ring structure, the pressing member is connected with the pressing plate and located on the inner side of the pressing plate, when the gland assembly is connected with the bearing assembly, the pressing plate is connected with the bearing assembly, and the pressing member tightly presses the second product.
9. The clamping mechanism of claim 1, wherein Both ends of each lead-through pin are in a hemispherical head structure.
10. The clamping mechanism of claim 1, wherein, The material of the bearing assembly and / or the gland assembly is stainless steel, and the stainless steel is coated with Teflon; and / or, the material of the base is glass.