Universal fixing device for AOI detection circuit board assembly

Abstract

The utility model relates to a universal fixing device for an AOI detection circuit board assembly, and relates to the technical field of circuit board assembly performance detection, the universal fixing device comprises a frame body, and the opposite side of the frame body is provided with an embedded side edge embedded with a clamping edge gap of a conveyor belt; a first sliding part is arranged in the frame body in a longitudinal sliding mode, a second sliding part is arranged in the frame body in a transverse sliding mode, and an area defined by the inner side of the frame body, the first sliding part and the second sliding part is arranged to be a circuit board assembly embedding and fixing area. The frame body, the first sliding piece and the second sliding piece are provided with limiting assemblies used for forming abutting limiting with the circuit board assembly, the arrangement of the circuit board assembly embedding and fixing area is combined, and therefore the circuit board assemblies of different specifications can be subjected to multi-directional embedding and matching, universal fixing of the circuit board assemblies can be achieved, and the practicability is high. And meanwhile, the stability of the circuit board assembly in the AOI detection process is ensured.

Description

Technical Field

[0001] This application relates to the technical field of performance detection of circuit board components, and particularly relates to a universal fixing device for AOI detection of circuit board components. Background Art

[0002] Currently, for circuit board components of different specifications, during the manufacturing process, it is necessary to detect common defects in the soldered circuit board components. Usually, AOI detection equipment is used to detect common defects encountered in the welding production of circuit board components. There is a conveyor belt for transporting circuit board components below the AOI detection equipment, and clamping edge gaps are respectively arranged on both sides of the conveyor belt.

[0003] In order to facilitate placing both sides of the circuit board component into the clamping edge gaps, for any circuit board component of any specification, clamping edges that form an embedded fit with the clamping edge gaps are preset on both sides thereof. During actual transportation, the clamping edges on both sides of the circuit board component are placed in the clamping edge gaps of the conveyor belt and transported to the AOI detection equipment for detection.

[0004] After AOI detection of the circuit board component, in the subsequent process flow, the staff will cut off the clamping edges of the circuit board component to be suitable for the next process and facilitate the smooth sale of the circuit board component. However, in the subsequent process flow, if the circuit board component has problems and needs to be reinspected, since the clamping edges on both sides of the circuit board component have been cut off and cannot be placed in the clamping edge gaps on both sides of the conveyor belt, for circuit board components of different specifications, the inspectors can only conduct manual inspection, which is time-consuming and laborious. Utility Model Content

[0005] In order to solve the clamping and fixing problem of circuit board components of different specifications during reinspection, this application provides a universal fixing device for AOI detection of circuit board components.

[0006] A universal fixing device for AOI detection of circuit board components provided by this application adopts the following technical solutions:

[0007] A universal fixing device for AOI detection of circuit board components, characterized in that: it includes a frame body, and on opposite sides of the frame body, there are provided embedded side edges that are embedded with the clamping edge gaps of the conveyor belt;

[0008] A first sliding member is longitudinally slidably arranged in the frame body, and a second sliding member is transversely slidably arranged. On one side of the frame body close to the first sliding member and the second sliding member, there is a first stepped embedding edge that forms an embedding fit with the circuit board assembly. On the inner side of the first sliding member close to the frame body, there is a second stepped embedding edge that forms an embedding fit with the circuit board assembly. On the inner side of the second sliding member close to the frame body, there is a third stepped embedding edge that forms an embedding fit with the circuit board assembly; the area surrounded by the inner side of the frame body, the first sliding member and the second sliding member is set as a circuit board assembly embedding and fixing area;

[0009] The first sliding member, the second sliding member and the frame body are respectively provided with a first limiting component, a second limiting component and a third limiting component for forming abutting limits with the circuit board assembly.

[0010] By adopting the above technical solution, by using the embedding side edges arranged on the opposite sides of the frame body, the frame body is embedded and fitted with the clamping edge gap of the conveyor belt, so that the conveyor belt can convey the circuit board assembly fixed on the frame body to the AOI detection device for detection. Combining the settings of the first stepped embedding edge on the frame body, the second stepped embedding edge of the first sliding member and the third stepped embedding edge of the second sliding member, multi-directional embedding fit of the circuit board assembly is realized. At the same time, the settings of the first limiting component, the second limiting component and the third limiting component abut and limit the circuit board assembly, so as to adapt to different specifications of circuit board assemblies, and the universal fixing of the circuit board assembly can be realized, and the stability of the circuit board assembly during the AOI detection process is ensured.

[0011] Preferably, a first guiding chute is opened on the frame body. First bolts are respectively inserted through both ends of the first sliding member and the second sliding member in the length direction. Any one of the first bolts is threadedly connected with a first slider, and any one of the first sliders is located in the first guiding chute and forms an embedding fit with it.

[0012] By adopting the above technical solution, by connecting the first sliding member and the second sliding member with the first bolts respectively, and at the same time the first slider forms an embedding fit with the first guiding chute, the first sliding member and the second sliding member respectively realize longitudinal sliding and transverse sliding in the frame body, so as to adapt to circuit boards of different sizes and improve the versatility and practicability of the device.

[0013] Preferably, a sliding opening is longitudinally penetrated through the first sliding member. A second bolt is arranged in the sliding opening. A clamping plate is arranged below the sliding opening. The second bolt forms an embedding and sliding fit with the sliding opening and is threadedly connected with the clamping plate.

[0014] By adopting the above technical solution, the second bolt and the sliding opening form an embedded sliding fit and a threaded connection with the clamping plate. Thus, the clamping plate is guided and slid on the first sliding member to a proper position, and the second bolt is tightened to fix the clamping plate, thereby realizing the fixation of the circuit board assembly at the position of the clamping plate.

[0015] Preferably, the second stepped embedded edges are symmetrically arranged on the outer edge of the clamping plate.

[0016] By adopting the above technical solution, by using the second stepped embedded edges arranged on the outer edge of the clamping plate, the stability of the circuit board assembly during the AOI detection process is further ensured.

[0017] Preferably, the first limiting component is arranged on the clamping plate. The first limiting component includes a third bolt and a first limiting block. The third bolt passes through the first limiting block and forms a rotational connection with it, and the bottom of the third bolt is threadedly connected to the clamping plate.

[0018] By adopting the above technical solution, by using the first limiting component arranged on the clamping plate, the position of the first limiting component moves along with the movement of the clamping plate. At the same time, by using the rotational connection formed by the third bolt and the first limiting block, it is convenient for the staff to rotate the first limiting block to quickly abut against the position on the circuit board assembly where there are no components arranged.

[0019] Preferably, the first limiting component includes an elastic member, and the elastic member is arranged between the third bolt and the first limiting block.

[0020] By adopting the above technical solution, by using the arrangement of the elastic member, the elastic member provides a certain pressing force and buffering force to the first limiting block when abutting and limiting the circuit board assembly, thereby ensuring the pressing of the circuit board assembly while also avoiding damaging the circuit board assembly.

[0021] Preferably, a backing plate is arranged below the second sliding member, and the third stepped embedded edges are arranged at both ends in the width direction of the backing plate.

[0022] By adopting the above technical solution, by using the arrangement of the third stepped embedded edges of the backing plate, the first stepped embedded edges of the frame and the third stepped embedded edges of the backing plate cooperate to fix the circuit board assembly, thereby increasing the supporting and fixing area of the circuit board assembly and further improving the stability of the circuit board assembly during the AOI detection process.

[0023] Preferably, a second guide chute is provided on the second sliding member, the second limiting assembly is arranged on the second guide chute, and the second limiting assembly includes a fourth bolt, a second limiting block and a second slider. The fourth bolt passes through the second limiting block and is rotatably connected thereto, and the bottom of the fourth bolt is threadedly connected to the second slider. The second slider is in an embedded fit with the second guide chute.

[0024] By adopting the above technical solution, the fourth bolt is rotatably connected with the second limiting block and the second slider is in an embedded sliding fit with the second guide chute, so that the second limiting assembly is guided and slid to a proper position in the second guide chute through the fourth bolt and the fourth bolt is tightened to fix the circuit board assembly.

[0025] Preferably, the third limiting assembly is arranged on the first guide chute, and the third limiting assembly includes a fifth bolt, a third limiting block and a third slider. The fifth bolt passes through the third limiting block and is rotatably connected thereto, and the bottom of the fifth bolt is threadedly connected to the third slider. The third slider is in an embedded fit with the first guide chute.

[0026] By adopting the above technical solution, the fifth bolt is rotatably connected with the third limiting block and the third slider is in an embedded sliding fit with the first guide chute, so that the third limiting assembly is guided and slid to a proper position in the first guide chute through the fifth bolt and the fifth bolt is tightened to fix the circuit board assembly.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. By using the embedded side edges provided on the opposite sides of the frame body, the frame body is in an embedded fit with the clamping edge gap of the conveyor belt, so that the conveyor belt can convey the circuit board assembly fixed on the frame body to the AOI detection device for detection. Combining the settings of the first stepped embedded edge on the frame body, the second stepped embedded edge of the first sliding member and the third stepped embedded edge of the second sliding member, this setting realizes the multi-directional embedded fit of the circuit board assembly. At the same time, the settings of the first limiting assembly, the second limiting assembly and the third limiting assembly abut and limit the upper surface of the circuit board assembly, further ensuring the stability of the circuit board assembly during the AOI detection process;

[0029] 2. Combining the settings of the first limiting block and the elastic member, the first limiting block abuts and limits the upper surface of the circuit board assembly, and at the same time the elastic member can provide a certain pressing force and buffering force, thereby ensuring the pressing of the circuit board assembly while avoiding damage to the circuit board assembly;

[0030] 3. The second bolt forms an embedded sliding fit with the sliding opening and a threaded connection with the clamping plate, so as to realize the guiding movement of the clamping plate to adapt to circuit boards of different sizes. At the same time, the first limiting component is fixedly connected to the clamping plate to realize the abutting limit on the surface of the circuit board assembly. Brief Description of the Drawings

[0031] Figure 1 is an isometric schematic diagram mainly showing the overall structure in the embodiment of the present application;

[0032] Figure 2 is Figure 1 a partial enlarged view of part A in [the figure], mainly showing the structural schematic diagram of the cooperation between the first sliding member and the first sliding guide groove in the embodiment of the present application;

[0033] Figure 3 is the structural schematic diagram mainly showing the cooperation between the second sliding member and the first sliding guide groove in the embodiment of the present application;

[0034] Figure 4 is the structural schematic diagram mainly showing the clamping plate and the first limiting component in the embodiment of the present application;

[0035] Figure 5 is Figure 1 a partial enlarged view of part B in [the figure], mainly showing the structural schematic diagram of the second limiting component in the embodiment of the present application;

[0036] Figure 6 is Figure 1 a partial enlarged view of part C in [the figure], mainly showing the structural schematic diagram of the third limiting component in the embodiment of the present application.

[0037] Reference Signs: 1, frame body; 11, embedded side; 12, first stepped embedded side; 13, first sliding guide groove; 131, first bolt; 132, first slider; 14, third limiting component; 141, fifth bolt; 142, third limiting block; 143, third slider; 2, first sliding member; 21, sliding opening; 211, second bolt; 22, clamping plate; 221, second stepped embedded side; 23, first limiting component; 231, third bolt; 232, first limiting block; 233, elastic member; 3, second sliding member; 31, moving member; 32, connecting member; 33, backing plate; 331, third stepped embedded side; 34, second sliding guide groove; 35, second limiting component; 351, fourth bolt; 352, second limiting block; 353, second slider. Detailed Description of the Embodiment

[0038] The following Figure 1 - Figure 6 further describes the present application in detail with reference to the

[0039] An embodiment of the present application discloses a universal fixing device for AOI detection of circuit board assemblies.

[0040] Referring to Figure 1 , a universal fixing device for AOI detection of circuit board assemblies includes a frame 1 with a quadrilateral structure. On one side of the opposite sides of the frame 1, there are embedded side edges 11 that are embedded in the clamping edge gap of the conveyor belt, so that the frame 1 is embedded and cooperated with the clamping edge gap of the conveyor belt. Furthermore, the conveyor belt can convey the circuit board assembly fixed on the frame 1 to the AOI detection device for detection.

[0041] Referring to Figure 1 , a first sliding member 2 is longitudinally slidably arranged in the frame 1 and a second sliding member 3 is transversely slidably arranged. The first sliding member 2 and the second sliding member 3 are cross-shaped. On one side of the frame 1 close to the first sliding member 2 and the second sliding member 3, there is a first stepped embedding edge 12 that forms an embedding fit with the circuit board assembly. On the inner side of the first sliding member 2 close to the frame 1, there is a second stepped embedding edge 221 that forms an embedding fit with the circuit board assembly. On the inner side of the second sliding member 3 close to the frame 1, there is a third stepped embedding edge 331 that forms an embedding fit with the circuit board assembly; when detecting the circuit board assembly, the area surrounded by the inner side of the frame 1, the first sliding member 2 and the second sliding member 3 provides a stable multi-directional embedding area for the circuit board assembly, ensuring the stability of the circuit board assembly during the AOI detection process.

[0042] Referring to Figure 2 and Figure 3 , a first guide chute 13 is arranged on the frame 1. The second sliding member 3 includes a moving member 31 and a connecting member 32. There are two connecting members 32, and the two connecting members 32 are respectively connected to both ends of the moving member 31 in the length direction by bolts. One end of any connecting member 32 away from the moving member 31 and both ends of the first sliding member 2 in the length direction are provided with first bolts 131. Any first bolt 131 is threadedly connected with a first slider 132, and any first slider 132 is located in the first guide chute 13 and forms an embedded sliding fit with it. Thus, the first sliding member 2 and the moving member 31 respectively achieve longitudinal sliding and transverse sliding on the first guide chute 13. At the same time, when the first sliding member 3 and the moving member 31 move to appropriate positions, the operator tightens the corresponding first bolts 131 to fix the first sliding member 2 and the connecting member 32, thereby improving the versatility and practicality of the device.

[0043] Referring to Figure 1 , a backing plate 33 is screwed to the lower part of the moving member 31. Both ends of the backing plate 33 in the length direction are abutted against the first stepped embedding edge 12. The third stepped embedding edge 331 is arranged at both ends of the backing plate 33 in the width direction. The third stepped embedding edge 331 and the first stepped embedding edge 12 cooperate to fix the circuit board assembly, thereby improving the stability of the circuit board assembly fixed on the device.

[0044] Referring to Figure 1 and Figure 4 , a sliding opening 21 is formed through the first sliding member 2 in its height direction. There are two sliding openings 21 arranged at intervals along the length direction of the first sliding member 2. A clamping plate 22 is arranged below any one of the sliding openings 21. A second bolt 211 is symmetrically arranged at intervals on any one of the clamping plates 22. And any one of the second bolts 211 passes through the sliding opening 21 and is threadedly connected to the clamping plate 22. Any one of the second bolts 211 forms an embedded sliding fit with the sliding opening 21. Thus, the two clamping plates 22 are guided and slid to a proper position on the first sliding member 2 and tightened, thereby realizing the flexible fixing of the clamping plate 22 to the circuit board assembly.

[0045] Referring to Figure 1 and Figure 4 , the second stepped embedded edge 221 is symmetrically arranged on the outer edge of any one of the clamping plates 22 with respect to the first sliding member 2. The second stepped embedded edge 221 cooperates with the third stepped embedded edge 331 to fix the circuit board assembly, thereby increasing the support and fixing area of the circuit board assembly and further improving the stability of the circuit board assembly during the AOI detection process.

[0046] Referring to Figure 1 and Figure 4 , on both sides of the upper surface of any one of the clamping plates 22 close to the second stepped embedded edge 221, first limiting components 23 are respectively arranged. The first limiting components 23 can abut and limit the upper surface of the circuit board assembly, facilitating the fixing operation of the circuit board assembly by the staff.

[0047] Referring to Figure 1 and Figure 4 , since the structures and connection methods of the two first limiting components 23 are the same, one of the first limiting components 23 will be taken as an example for description.

[0048] Referring to Figure 1 and Figure 4, the first limiting component 23 includes a third bolt 231 and a first limiting block 232. The third bolt 231 passes through the first limiting block 232 and forms a rotational connection therewith, and the bottom of the third bolt 231 is threadedly connected to the clamping plate 22. Then, the position of the first limiting component 23 moves with the movement of the clamping plate 22, so that the first limiting block 232 smoothly abuts against the position on the circuit board where no components are arranged, thereby enabling the device to fix circuit board components of different specifications; the first limiting component 23 includes an elastic member 233 sleeved on the third bolt 231. The upper end of the elastic member 233 abuts against the lower surface of the bolt head of the third bolt 231, and at the same time, the lower end of the elastic member 233 abuts against the upper surface of the first limiting block 232. When the first limiting block 232 abuts against and limits the circuit board component, the elastic member 233 can provide a certain pressing force to the first limiting block 232 to ensure that the first limiting component 23 can press the circuit board component. When the first limiting component 23 is impacted by an external force, the elastic member 233 can also provide a buffering force to relieve the damage caused to the circuit board component by the impact. In the embodiment of the present application, the elastic member 233 is set as a compression spring.

[0049] Referring to Figure 1 and Figure 5 , a second guiding chute 34 is formed on the moving member 31, and a second limiting component 35 is arranged in the second guiding chute 34. A plurality of second limiting components 35 are provided. In the embodiment of the present application, two second limiting components 35 are provided. Since the structures and connection methods of the two second limiting components 35 are the same, one of the second limiting components 35 will be taken as an example for description.

[0050] Referring to Figure 1 and Figure 5 , the second limiting component 35 includes a fourth bolt 351, a second limiting block 352 and a second slider 353. The fourth bolt 351 passes through the second limiting block 352 and forms a rotational connection therewith, and the bottom of the fourth bolt 351 is threadedly connected to the second slider 353. The second slider 353 forms an embedded fit with the second guiding chute 34, so that the second limiting block 352 is guided and slid to a proper position in the second guiding chute 34 through the fourth bolt 351 and the fourth bolt 351 is tightened to fix the position of the second limiting block 352, thereby abutting against and limiting the position on the upper surface of the circuit board component where no components are arranged.

[0051] Referring to Figure 1 and Figure 6 , since the frame 1 is a quadrilateral frame, that is, four first guiding chutes are provided on the frame, and a third limiting component 14 is arranged in the first guiding chute 13. Correspondingly, in the embodiment of the present application, three third limiting components 14 are provided. Since the structures and connection methods of the three third limiting components 14 are the same, one of the third limiting components 14 will be taken as an example for description.

[0052] Referring toFigure 1 and Figure 6 The third limiting component 14 includes a fifth bolt 141, a third limiting block 142 and a third sliding block 143. The fifth bolt 141 passes through the third limiting block 142 and forms a rotational connection therewith, and the bottom of the fifth bolt 141 is threadedly connected to the third sliding block 143. The third sliding block 143 forms an embedded fit with the first guide chute 13, so that the third limiting block 142 is guided and slid to a proper position in the first guide chute 13 through the fifth bolt 141 and the fifth bolt 141 is tightened, realizing the fixation of the third limiting block 142, thereby abutting and limiting the position where no components are arranged on the upper surface of the circuit board assembly, and further adapting to circuit board assemblies of different specifications, and thus realizing the universal fixation of the circuit board assembly.

[0053] The implementation principle of the embodiment of the present application is as follows: During actual operation, the staff first unscrew the first bolts 131 on the first sliding member 2 and the connecting member 32 respectively, so that the first sliding member 2 and the moving member 31 longitudinally slide and laterally slide along the first guide chute 13 in the frame 1. Then the staff embed the circuit board assembly to be AOI detected into the circuit board assembly embedding and fixing area surrounded by the first stepped embedding edge 12 on the inner side of the frame 1, the second stepped embedding edge 221 on the clamping plate 22 and the third stepped embedding edge 331 on the cushion plate 33. Then the first sliding member 2 and the moving member 31 are respectively slid to the positions corresponding to and cooperating with the circuit board assembly for fixation and the first bolts 131 at both ends are tightened, thereby completing the preliminary fixation of the circuit board assembly.

[0054] Then the staff unscrew the second bolts 211 for fixing the clamping plate 22 and slide the clamping plate 22 to a proper position, then tighten the second bolts 211 to fix the position of the clamping plate 22. Then the third bolts 231 on the first limiting component 23, the fourth bolts 351 on the second limiting component 35 and the fifth bolts 141 on the third limiting component 14 are unscrewed respectively, and the first limiting block 232, the second limiting block 352 and the third limiting block 142 are respectively slid to proper positions and rotated to abut against the positions where no components are arranged on the circuit board assembly. After that, the third bolts 231, the fourth bolts 351 and the fifth bolts 141 are tightened respectively, realizing the position fixation of the first limiting block 232, the second limiting block 352 and the third limiting block 142, so as to ensure the universal abutting fixation of circuit board assemblies of different specifications while avoiding damaging the components.

[0055] Finally, after ensuring that the above operations are correct, the staff utilize the embedding side edges 11 arranged on the opposite sides of the frame 1, so that the embedding side edges 11 on the frame 1 are in an embedded fit with the clamping edge gap of the conveyor belt, so that the conveyor belt can convey the circuit board assembly fixed on the frame 1 to the AOI detection device for detection.

[0056] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A universal fixing device for AOI detection of circuit board components, characterized in that: It includes a housing (1), and on opposite sides of the housing (1), there are provided insertion side edges (11) that are inserted into the clamping edge gap of the conveyor belt. A first sliding member (2) is longitudinally slidably arranged in the housing (1), and a second sliding member (3) is transversely slidably arranged. On one side of the housing (1) close to the first sliding member (2) and the second sliding member (3), there is provided a first stepped insertion edge (12) that forms an insertion fit with the circuit board assembly. On the inner side of the first sliding member (2) close to the housing (1), there is provided a second stepped insertion edge (221) that forms an insertion fit with the circuit board assembly. On the inner side of the second sliding member (3) close to the housing (1), there is provided a third stepped insertion edge (331) that forms an insertion fit with the circuit board assembly. The area surrounded by the inner side of the housing (1), the first sliding member (2), and the second sliding member (3) is set as the circuit board assembly insertion and fixing area. On the first sliding member (2), the second sliding member (3), and the housing (1), there are respectively provided a first limiting component (23), a second limiting component (35), and a third limiting component (14) for forming abutting limits with the circuit board assembly.

2. The universal fixing device for AOI detection of circuit board components according to claim 1, wherein: A first guiding chute (13) is opened on the housing (1). At both ends in the length direction of the first sliding member (2) and the second sliding member (3), a first bolt (131) is inserted. Any one of the first bolts (131) is threadedly connected with a first slider (132), and any one of the first sliders (132) is located in the first guiding chute (13) and forms an insertion fit with it.

3. The universal fixing device for AOI detection of circuit board assemblies according to claim 1, characterized in that: A sliding opening (21) is penetrated through the first sliding member (2) along its height direction. A second bolt (211) is arranged in the sliding opening (21). Below the sliding opening (21), there is provided a clamping plate (22). The second bolt (211) forms an insertion and sliding fit with the sliding opening (21) and is threadedly connected with the clamping plate (22).

4. The universal fixing device for AOI detection of circuit board assemblies according to claim 3, wherein: The second stepped insertion edge (221) is symmetrically arranged on the outer edge of the clamping plate (22).

5. The universal fixing device for AOI detection of circuit board components according to claim 3, characterized in that: The first limiting component (23) is arranged on the clamping plate (22). The first limiting component (23) includes a third bolt (231) and a first limiting block (232). The third bolt (231) penetrates through the first limiting block (232) and forms a rotational connection with it, and the bottom of the third bolt (231) is threadedly connected with the clamping plate (22).

6. The universal fixing device for AOI detection of circuit board assemblies according to claim 5, characterized in that: The first limiting component (23) includes an elastic member (233). The elastic member (233) is arranged between the third bolt (231) and the first limiting block (232).

7. The universal fixing device for AOI detection of circuit board assemblies according to claim 1, wherein: A cushion plate (33) is arranged below the second sliding member (3). The third stepped insertion edge (331) is arranged at both ends in the width direction of the cushion plate (33).

8. The universal fixing device for AOI detection of circuit board components according to claim 7, wherein: A second guide chute (34) is provided on the second sliding member (3), and the second limiting assembly (35) is arranged on the second guide chute (34). The second limiting assembly (35) includes a fourth bolt (351), a second limiting block (352) and a second sliding block (353). The fourth bolt (351) passes through the second limiting block (352) and is rotatably connected thereto, and the bottom of the fourth bolt (351) is threadedly connected to the second sliding block (353). The second sliding block (353) is in an embedded fit with the second guide chute (34).

9. The universal fixing device for AOI detection of circuit board components according to claim 2, characterized in that: The third limiting assembly (14) is arranged on the first guide chute (13), and the third limiting assembly (14) includes a fifth bolt (141), a third limiting block (142) and a third sliding block (143). The fifth bolt (141) passes through the third limiting block (142) and is rotatably connected thereto, and the bottom of the fifth bolt (141) is threadedly connected to the third sliding block (143). The third sliding block (143) is in an embedded fit with the first guide chute (13).

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