Mounting clamp

Abstract

The utility model belongs to the technical field of surface mounting, and discloses a surface mounting clamp which comprises a supporting carrier and a surface mounting jig, the surface mounting jig comprises a pressing plate, a gravity pressing block and a gravity correction assembly, the pressing plate is detachably connected to one side of the supporting carrier, and the gravity pressing block is slidably connected to the pressing plate in the gravity direction; the gravity correction assembly is rotationally connected to the pressing plate. The mounting clamp provided by the utility model can realize the position correction of the element to be assembled, and has higher correction efficiency.

Description

Technical Field

[0001] This utility model relates to the field of patch technology, and in particular to a patch fixture. Background Technology

[0002] SMT, or Surface Mount Technology, is currently the most popular technology and process in the electronics assembly industry. SMT is a circuit assembly technology that mounts leadless or short-lead surface mount components onto the surface of a printed circuit board (PCB) or other substrates, and then assembles them using methods such as reflow soldering or dip soldering.

[0003] In the placement process, taking a circuit board as an example, the component placement tool first applies solder paste to the circuit board. Then, the circuit board is positioned on a clamping carrier. Next, the placement fixture is locked onto the clamping carrier. The pressure blocks on the placement fixture pre-press the components to prevent misalignment or displacement of the components during reflow and assembly line processes. Since the position and angle of the components on the circuit board are fixed, and components may become misaligned when placed, manual adjustment is required to move the components to meet the required position and angle. However, manual adjustment is inefficient and labor-intensive. Utility Model Content

[0004] The purpose of this invention is to provide a mounting fixture to solve the technical problem of low component correction efficiency in the prior art.

[0005] Based on the above concept, the technical solution adopted by this utility model is as follows:

[0006] Placement fixtures, including:

[0007] Support vehicle;

[0008] The patch fixture includes a pressure plate, a gravity block, and a gravity correction assembly. The pressure plate is detachably connected to one side of the support carrier, and the gravity block is slidably connected to the pressure plate along the direction of gravity. The gravity correction assembly is rotatably connected to the pressure plate.

[0009] In one embodiment, the gravity correction component has a corrected state and an original state relative to the pressure plate. The gravity correction component in the corrected state abuts against the component to be assembled, while the gravity correction component in the original state is spaced apart from the component to be assembled.

[0010] In one embodiment, the gravity correction assembly includes a locking member and a gravity correction member. The locking member is movably connected to the pressure plate along the direction of gravity, and the gravity correction member is rotatably connected to the pressure plate. When the gravity correction assembly is in the correction state, one end of the gravity correction member abuts against the component to be assembled, and the distance between the locking member and the pressure plate is a first distance. When the gravity correction assembly is in the original state, the distance between the locking member and the pressure plate is a second distance, and the gravity correction member is connected to the locking member. One end of the gravity correction member has a first gap with the component to be assembled. The first distance is greater than the second distance.

[0011] In one embodiment, the locking member is provided with a first magnetic element, the gravity correction member is provided with a second magnetic element, the gravity correction component is in the original state, and the locking member and the gravity correction member are magnetically connected through the first magnetic element and the second magnetic element.

[0012] In one embodiment, the pressure plate is provided with a fixing block, and the surface of the fixing block facing the pressure plate is provided with a rotating groove. The groove wall of the rotating groove is connected to a rotating shaft. The gravity correction element is sleeved on the rotating shaft and can rotate around the rotating shaft. The fixing block restricts the rotation range of the gravity correction element.

[0013] In one embodiment, the gravity correction component includes a gravity part, a connecting part, and a pushing part connected in sequence, wherein the weight of the gravity part is greater than the weight of the pushing part; the second magnetic component is disposed on the connecting part, which is located on the same side of the pressure plate opposite to the support carrier, and has a rotating hole for the rotating shaft to pass through, the rotating hole being closer to the pushing part than the second magnetic component; the pressure plate has a first through hole, and the pushing part is bent relative to the connecting part and passes through the first through hole.

[0014] In one embodiment, the pushing part is an inverted T-shaped structure, and the extending direction of the end of the pushing part away from the connecting part is the same as the length direction or width direction of the component to be assembled; and / or, the pushing part is provided with a boss, and the boss abuts against the component to be assembled.

[0015] In one embodiment, the gravity correction assembly further includes a connecting rod, the locking member is disposed on the side of the pressure plate facing away from the support carrier, the pressure plate is provided with a second through hole, one end of the connecting rod is connected to the locking member, and the other end passes through the second through hole and abuts against the support carrier; the length of the connecting rod is greater than the thickness of the pressure plate.

[0016] In one embodiment, the gravity correction assembly further includes a first connector and an elastic member. The first connector includes a head and a rod. The head is located on the side of the locking member facing away from the pressure plate. The rod passes through the locking member and is connected to the pressure plate. The elastic member is sleeved on the rod and abuts against the head and the locking member. The elastic member always has a tendency to drive the locking member closer to the pressure plate.

[0017] In one embodiment, multiple gravity correction elements are provided, and the multiple gravity correction elements can be connected to the same locking element.

[0018] In one embodiment, a plurality of gravity correction elements are provided, and the plurality of gravity correction elements are arranged at circumferential intervals along the element to be assembled.

[0019] The beneficial effects of this utility model are:

[0020] The mounting fixture provided by this utility model has a pressure plate detachably connected to a support carrier, and a gravity correction component rotatably connected to the pressure plate. This allows the gravity correction component to come into contact with the component to be assembled when it rotates relative to the pressure plate. As the gravity correction component rotates relative to the pressure plate, it pushes the component to be assembled relative to the circuit board, thereby correcting the position of the component to be assembled. Compared with manual correction, the correction by gravity correction component can improve the efficiency of correction and reduce the intensity of manual labor. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model 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 the content of the embodiments of this utility model and these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the mounting fixture provided in this embodiment of the utility model;

[0023] Figure 2 This is a top view of the mounting fixture provided in this embodiment of the utility model;

[0024] Figure 3 This is an exploded view of the mounting fixture provided in this embodiment of the utility model;

[0025] Figure 4 This is a first sectional view of the mounting fixture provided in this embodiment of the utility model;

[0026] Figure 5This is a second sectional view of the mounting fixture provided in this embodiment of the utility model;

[0027] Figure 6 This is a schematic diagram of the structure of some mounting fixtures provided in the embodiments of this utility model;

[0028] Figure 7 This is an exploded view of part of the mounting fixture provided in this embodiment of the utility model;

[0029] Figure 8 This is a schematic diagram of the structure of the fixing block provided in an embodiment of this utility model.

[0030] In the picture:

[0031] 100. Support carrier; 200. Patch fixture; 210. Pressure plate; 211. First through hole; 212. Second through hole; 213. Third through hole; 220. Gravity block; 221. Gravity head; 222. Connecting post; 223. Pressing part; 230. Gravity correction assembly; 231. Locking element; 232. Gravity correction component; 2321. Gravity part; 2322. Connecting part; 2323. 2324. Pushing part; 233. Rotating hole; 234. First magnetic component; 235. Second magnetic component; 236. Connecting rod; 237. First connecting component; 2361. Head; 2362. Rod part; 237. Elastic component; 240. Fixing block; 241. Rotating groove; 250. Rotating shaft; 300. Connecting assembly; 310. Spring lock; 320. Guide post; 1. Component to be assembled; 2. Circuit board. Detailed Implementation

[0032] To make the technical problem solved by this utility model, the technical solution adopted, and the technical effect achieved clearer, the technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining this utility model and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this utility model are shown in the accompanying drawings, not all of them.

[0033] It should be understood that the phrase "one embodiment" or "an embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the present invention. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0034] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0035] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. In the description of this embodiment, unless otherwise specified, "multiple" specifically refers to two or more.

[0037] In the description of this embodiment, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., are based on the orientation or positional relationships shown in the accompanying drawings and are only for ease of description and simplification of operation. They 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 utility model. Furthermore, the terms "first" and "second" are merely used for distinction in description and have no special meaning.

[0038] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on the other component or it can be located in between the component.

[0039] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0040] This embodiment provides a mounting fixture that can achieve positional correction of components to be assembled, with high correction efficiency and good correction effect.

[0041] The mounting fixture provided in this embodiment can be used to pre-fix the circuit board and the components to be assembled during the surface mount process, so as to prevent the components to be assembled and the circuit board from shaking during the reflow oven, thereby improving the yield of the assembled products.

[0042] For example, such as Figures 1 to 8 As shown, the mounting fixture includes a support carrier 100 and a mounting jig 200. The support carrier 100 supports and positions the circuit board 2. For example, the support carrier 100 may have multiple contoured slots (not shown in the figure), and the circuit board 2 is placed in these slots so that it does not move relative to the support carrier 100. In this embodiment, the mounting jig 200 is connected to the support carrier 100.

[0043] For example, such as Figure 1 As shown, the mounting fixture 200 includes a pressure plate 210, a gravity block 220, and a gravity correction assembly 230. The pressure plate 210 is detachably connected to one side of the support carrier 100; specifically, the pressure plate 210 and the circuit board 2 are located on the same side of the support carrier 100. The gravity block 220 is slidably connected to the pressure plate 210 along the direction of gravity and is used to press the component 1 to be assembled onto the circuit board 2 using its own weight. This ensures that the pressure received by the component 1 is equal to the weight of the gravity block 220, facilitating control of the minimum distance between the component 1 and the circuit board 2, and ensuring that the position of the component 1 relative to the circuit board 2 in the direction of gravity meets the requirements. In some optional embodiments, the weight of the gravity block 220 can be 15 grams, 16 grams, etc., but this embodiment does not limit this.

[0044] In some alternative embodiments, such as Figure 4As shown, the pressure plate 210 has a third through hole 213, and the gravity block 220 is slidably inserted through the third through hole 213, such that a portion of the gravity block 220 is located on the side of the pressure plate 210 facing away from the support carrier 100, and a portion is located between the pressure plate 210 and the support carrier 100 to press the component 1 to be assembled. Exemplarily, the gravity block 220 may include a gravity head 221, a connecting post 222, and a pressing part 223 connected in sequence. The gravity head 221 is located on the side of the pressure plate 210 facing away from the support carrier 100, and the cross-sectional area of ​​the gravity head 221 is larger than the area of ​​the third through hole 213. The connecting post 222 is inserted through the third through hole 213. The pressing part 223 is used to contact the component 1 to be assembled, and the cross-sectional area of ​​the pressing part 223 is larger than the cross-sectional area of ​​the connecting post 222, so that the pressing part 223 and the component 1 to be assembled can have a larger contact area, improving the pressing effect on the component 1 to be assembled. The above-described structure of the gravity block 220 enables the movable connection between the gravity block 220 and the pressure plate 210, thereby ensuring that the gravity block 220 will not detach from the pressure plate 210 while pressing the component 1 to be assembled.

[0045] In this embodiment, the gravity correction component 230 is rotatably connected to the pressure plate 210, and the component to be assembled 1 is provided with the gravity correction component 230 on at least one side in the horizontal direction. The gravity correction component 230 is rotatable relative to the pressure plate 210, and the component to be assembled 1 is located on one side of the gravity correction component 230, so that when the gravity correction component 230 rotates relative to the eye 210, it can abut against or push the component to be assembled 1, thereby realizing the position adjustment of the component to be assembled 1 on the circuit board 2.

[0046] When using the mounting fixture provided in this embodiment, the mounting jig 200 is first detached from the support carrier 100. Then, a circuit board 2 with solder paste is placed on the support carrier 100, and the component 1 to be assembled is placed on the circuit board 2 with solder paste. Next, the mounting jig 200 is placed over the support carrier 100 and the support carrier 100 and the mounting jig 200 are connected. During or after connecting the support carrier 100 and the mounting jig 200, the gravity correction component 230 is controlled to rotate relative to the pressure plate 210, generating a horizontal thrust. This horizontal thrust pushes the component 1 to be assembled relative to the circuit board 2, thereby pushing it to the assembly position, achieving correction of the component 1 to be assembled. Then, the gravity pressure block 220 is controlled to press the component 1 to be assembled, achieving a limit in the gravity direction.

[0047] The mounting fixture provided in this embodiment has a pressure plate 210 detachably connected to a support carrier 100, and a gravity correction component 230 rotatably connected to the pressure plate 210. This allows the gravity correction component 230 to abut against the component 1 to be assembled when rotating relative to the pressure plate 210. As the gravity correction component 230 rotates relative to the pressure plate 210, it pushes the component 1 to be assembled relative to the circuit board 2, thereby correcting the position of the component 1 to be assembled. Compared with manual correction, the correction by the gravity correction component 230 can improve the correction efficiency and reduce the intensity of manual labor.

[0048] Furthermore, each component 1 to be assembled can correspond to one or more gravity correction components 230, so that multiple components 1 to be assembled can be corrected simultaneously, thereby further improving the efficiency of correction.

[0049] In some optional embodiments, the gravity correction component 230 has a corrected state and an original state relative to the pressure plate 210. Wherein, Figure 4 This is a schematic diagram of the gravity correction component 230 in its original state. Figure 5 This is a schematic diagram of the gravity correction component 230 in the correction state. In the correction state, the gravity correction component 230 abuts against the component 1 to be assembled; that is, when the gravity correction component 230 is in the correction state, it can abut against the component 1 to be assembled, thereby adjusting the position of the component 1 on the circuit board 2. In the original state, the gravity correction component 230 is spaced apart from the component 1 to be assembled; that is, when the gravity correction component 230 is in the original state, it does not contact the component 1 to be assembled.

[0050] In this embodiment, during the process of connecting the support carrier 100 and the patch fixture 200, or after connecting the support carrier 100 and the patch fixture 200, the gravity correction component 230 is converted from the original state to the correction state. During the conversion process, the gravity correction component 230 rotates relative to the pressure plate 210 and generates a horizontal thrust. This horizontal thrust pushes the component 1 to be assembled relative to the circuit board 2 and is then pushed to the assembly position, thereby realizing the correction of the component 1 to be assembled.

[0051] In some optional embodiments, the correction principle of the gravity correction component 230 in this embodiment is similar to that of a seesaw. That is, one end of the gravity correction component 230 is a free-fall end, and the other end is the end that contacts the component to be assembled. When the free-fall end falls under the action of gravity, the other end can contact the component to be assembled 1 and push the component to be assembled 1 to move in the horizontal direction. Furthermore, during the furnace process, the gravity correction component 230 can always be in contact with the component to be assembled 1 to achieve the limiting of the component to be assembled 1.

[0052] There are various ways in which the pressure plate 210 is connected to the support carrier 100. For example, this embodiment provides one way in which the pressure plate 210 is connected to the support carrier 100. For example... Figure 1 As shown, the support carrier 100 and the pressure plate 210 are connected by a connecting assembly 300. Specifically, the connecting assembly 300 includes a guide post 320 and a spring lock 310. The guide post 320 guides the support carrier 100 and the pressure plate 210, and the spring lock 310 locks the support carrier 100 and the pressure plate 210. The spring lock 310 can be any spring lock 310 in the prior art, and this embodiment is not limited to it. For example, the spring lock 310 includes a stud (not shown in the figure) and a screw block (not shown in the figure) connected to one end of the stud. The other end of the stud passes through the pressure plate 210 and is screwed to the support carrier 100. A spring (not shown in the figure) is provided between the screw block and the pressure plate 210. The spring presses the pressure plate 210 onto the support carrier 100 to achieve the connection between the two.

[0053] Optionally, this embodiment provides a gravity correction component 230. For example, as shown... Figure 2 As shown, the gravity correction assembly 230 includes a locking member 231 and a gravity correction member 232. The locking member 231 is movably connected to the pressure plate 210 along the direction of gravity, and the gravity correction member 232 is rotatably connected to the pressure plate 210. When the gravity correction assembly 230 is in the correction state, one end of the gravity correction member 232 abuts against the component 1 to be assembled, and the distance between the locking member 231 and the pressure plate 210 is a first distance d1; the gravity correction member 232 and the locking member 231 are not connected. When the gravity correction assembly 230 is in its original state, the distance between the locking member 231 and the pressure plate 210 is a second distance d2, and the gravity correction member 232 is connected to the locking member 231 to lock the gravity correction member 232. One end of the gravity correction member 232 has a first gap with the component 1 to be assembled. The first distance d1 is greater than the second distance d2.

[0054] By setting the locking element 231, when the gravity correction element 232 needs correction, the locking element 231 will not connect with the gravity correction element 232, allowing the gravity correction element 232 to abut against the assembly component 1 under the action of gravity. When the gravity correction element 232 does not need correction, it connects with the locking element 231, locking the gravity correction element 232 and preventing it from accidentally touching the assembly component 1, thus improving reliability. By setting the first distance d1 to be greater than the second distance d2, on the one hand, the locking element 231 will not interfere with the rotation of the gravity correction element 232 relative to the pressure plate 210, and on the other hand, it facilitates the connection between the gravity correction element 232 and the locking element 231 in the original state of the gravity correction assembly 230.

[0055] In some optional embodiments, the difference between the first distance d1 and the second distance d2 is 2.5mm-3mm. For example, the difference between the first distance d1 and the second distance d2 is 2.5mm, 2.8mm, 3mm, etc.

[0056] Optionally, the size of the first gap is 2.5mm-4mm. It should be noted that the size of the first gap can be the width of the first gap. For example, the size of the first gap can be 2.5mm, 3mm, 3.5mm, 4mm, etc.

[0057] Optionally, the connection between the locking member 231 and the gravity correction member 232 can be varied. In one possible implementation, such as... Figure 4 or Figure 5 As shown, the locking member 231 is provided with a first magnetic element 233, and the gravity correction member 232 is provided with a second magnetic element 234. When the gravity correction assembly 230 is in its original state, the locking member 231 and the gravity correction member 232 are magnetically connected through the first magnetic element 233 and the second magnetic element 234 to achieve the connection between the locking member 231 and the gravity correction member 232. When the distance between the locking member 231 and the pressure plate 210 is a first distance d1, the magnetic connection between the first magnetic element 233 and the second magnetic element 234 fails. That is, the distance between the first magnetic element 233 and the second magnetic element 234 is greater than the magnetic force range. At this time, the gravity correction member 232 is no longer affected by the locking member 231 and can rotate freely relative to the pressure plate 210. When the distance between the locking member 231 and the pressure plate 210 is the second distance d2, the spacing between the first magnetic member 233 and the second magnetic member 234 is within the magnetic force range, so that the locking member 231 and the gravity correction member 232 can be magnetically connected together.

[0058] The connection between the locking member 231 and the gravity correction member 232 provided in this embodiment is relatively simple, resulting in a simpler overall structure and lower cost for the mounting fixture. For example, both the first magnetic member 233 and the second magnetic member 234 can be magnets.

[0059] It should be noted that in this embodiment, the adsorption force between the first magnetic component 233 and the second magnetic component 234 is greater than the gravity of the gravity correction component 232, so that the gravity correction component 232 will not separate from the locking component 231 under the action of gravity, thereby improving the reliability of the connection between the locking component 231 and the gravity correction component 232.

[0060] In some optional embodiments, the surface of the locking member 231 facing the gravity correction member 232 and the surface of the gravity correction member 232 facing the locking member 231 may be provided with grooves (not shown in the figure), the first magnetic member 233 is disposed in the groove of the locking member 231, and the second magnetic member 234 is disposed in the groove of the gravity correction member 232.

[0061] For example, such as Figure 3 As shown, the gravity correction assembly 230 also includes a connecting rod 235, and a locking member 231 is disposed on the side of the pressure plate 210 facing away from the support carrier 100. The pressure plate 210 has a second through hole 212. One end of the connecting rod 235 is connected to the locking member 231, and the other end passes through the second through hole 212 and abuts against the support carrier 100. In this embodiment, the length of the connecting rod 235 is greater than the thickness of the pressure plate 210, so that when the pressure plate 210 is connected to the support carrier 100, the connecting rod 235 contacts the support carrier 100 before the pressure plate 210. After the pressure plate 210 is connected to the support carrier 100, the connecting rod 235 lifts the locking member 231, so that the distance between the locking member 231 and the pressure plate 210 changes from a second distance d2 to a first distance d1, thereby releasing the lock on the gravity correction assembly 232.

[0062] To ensure that the gravity correction element 232 only separates from the locking element 231 when in the correction state, and remains connected to the locking element 231 otherwise, in some optional embodiments, such as... Figure 6 and Figure 7 As shown, the gravity correction assembly 230 also includes a first connector 236 and an elastic member 237. The first connector 236 includes a head 2361 and a rod 2362. The head 2361 is located on the side of the locking member 231 facing away from the pressure plate 210. The rod 2362 passes through the locking member 231 and is connected to the pressure plate 210. The elastic member 237 is sleeved on the rod 2362 and abuts against the head 2361 and the locking member 231. The elastic member 237 always has a tendency to drive the locking member 231 closer to the pressure plate 210, so that the locking member 231 can always be close to the gravity correction member 232, thereby reducing the distance between the locking member 231 and the gravity correction member 232, and magnetically connecting the gravity correction member 232 and the locking member 231, allowing the gravity correction member 232 to be locked by the locking member 231. Exemplarily, the elastic member 237 includes, but is not limited to, a spring.

[0063] It should be noted that when the connecting rod 235 abuts against the support carrier 100 and the pressure plate 210 is connected to the support carrier 100, the connecting rod 235 drives the locking member 231 to squeeze the elastic member 237, so that the elastic member 237 stores elastic potential energy. When the external force applied by the connecting rod 235 to the locking member 231 is exhausted, under the action of the elastic force of the elastic member 237, the elastic member 237 pushes the locking member 231 closer to the gravity correction member 232 (or the pressure plate 210) to connect with the gravity correction member 232.

[0064] In one embodiment, to limit the range of rotation of the gravity corrector 232 relative to the pressure plate 210, such as Figures 4 to 6As shown, the pressure plate 210 is provided with a fixing block 240, which optionally can be detachably connected to the side of the pressure plate 210 facing away from the support carrier 100. Figure 8 As shown, the surface of the fixing block 240 facing the pressure plate 210 is provided with a rotating groove 241, which provides space for the gravity correction member 232 to rotate. Furthermore, a rotating shaft 250 is connected to the wall of the rotating groove 241, and the gravity correction member 232 is fitted onto the rotating shaft 250. That is, the rotating shaft 250 can pass through the gravity correction member 232, allowing the gravity correction member 232 to rotate around the rotating shaft 250, thus realizing the rotation of the gravity correction member 232 relative to the pressure plate 210. The fixing block 240 limits the rotation range of the gravity correction member 232 to prevent excessive movement of the gravity correction member 232.

[0065] By setting the fixing block 240, on the one hand, the gravity correction component 232 is limited when rotating, avoiding the problem of how much distance the gravity correction component 232 pushes the component 1 to be assembled to move. On the other hand, the rotating shaft 250 is fixedly installed so that the gravity correction component 232 can rotate smoothly relative to the pressure plate 210.

[0066] Optionally, this embodiment provides a gravity correction element 232, such as... Figure 5 As shown, the gravity correction component 232 includes a gravity part 2321, a connecting part 2322, and a pushing part 2323 connected in sequence. A second magnetic component 234 is disposed on the connecting part 2322, which is located on the same side of the pressure plate 210 facing away from the support carrier 100 and has a rotation hole 2324 for the rotating shaft 250 to pass through. The pressure plate 210 has a first through hole 211. The pushing part 2323 is bent relative to the connecting part 2322 and passes through the first through hole 211, so that one end of the pushing part 2323 facing away from the connecting part 2322 can abut against the component 1 to be assembled located between the pressure plate 210 and the support carrier 100.

[0067] In some alternative embodiments, the push portion 2323 is provided with a boss facing the component 1 to be assembled, the boss being used to push the component 1 to be assembled.

[0068] It should be noted that the weight of the gravity part 2321 is greater than the weight of the pushing part 2323. When the locking member 231 is no longer connected to the gravity correction member 232, the gravity part 2321 falls under the action of gravity (i.e., moves towards the support carrier 100). At this time, the pushing part 2323 will move upward and in a direction away from the gravity part 2321 to correct the position of the component 1 to be assembled. By providing the connecting part 2322, a certain distance can be maintained between the gravity part 2321 and the pushing part 2323, thereby facilitating the linkage between the gravity part 2321 and the pushing part 2323, and enabling the pushing part 2323 to move in both the gravity direction and the horizontal direction.

[0069] In one embodiment, the rotating hole 2324 is closer to the pushing part 2323 than the second magnetic element 234. That is, the rotating hole 2324 is located between the second magnetic element 234 and the pushing part 2323. This facilitates the magnetic connection between the first magnetic element 233 and the second magnetic element 234, and also ensures that the position of the fixing block 240 does not interfere with the gravity pressing block 220, thus guaranteeing the pressing effect of the gravity pressing block 220 on the component 1 to be assembled.

[0070] It is understandable that, given sufficient space, the rotating hole 2324 could also be positioned between the gravity part 2321 and the second magnetic element 234; this embodiment does not limit this.

[0071] In some alternative embodiments, such as Figure 6 As shown, to increase the contact area between the pushing part 2323 and the component 1 to be assembled, the pushing part 2323 has an inverted T-shaped structure. That is, the cross-sectional area of ​​the portion connecting the pushing part 2323 and the connecting part 2322 is smaller than the cross-sectional area of ​​the portion used to contact the component 1 to be assembled. This configuration increases the contact area between the pushing part 2323 and the component 1 to be assembled. Furthermore, the extension direction of the end of the pushing part 2323 away from the connecting part 2322 is the same as the length or width direction of the component 1 to be assembled, to avoid the component 1 to be assembled from point contact and to improve the correction effect on the component 1 to be assembled.

[0072] Optionally, to prevent the pushing part 2323 from damaging the component 1 to be assembled, in this embodiment, the surface of the pushing part 2323 used to abut against the component 1 to be assembled is curved. In this way, the sharp corners of the pushing part 2323 can be prevented from directly contacting the component 1 to be assembled and causing damage to the component 1, thereby improving the yield.

[0073] In one embodiment, the gravity correction element 232 and the locking element 231 can be in a one-to-one correspondence, that is, each gravity correction element 232 corresponds to one locking element 231.

[0074] In other embodiments, such as Figure 3 As shown, multiple gravity correction elements 232 can be provided, and multiple gravity correction elements 232 can be connected to the same locking element 231, so that one locking element 231 can lock multiple gravity correction elements 232, which improves the utilization rate of the locking element 231, reduces the number of structures in the mounting fixture, and makes the structure of the mounting fixture simpler.

[0075] In some optional embodiments, each component 1 to be assembled may correspond to a gravity correction element 232. That is, the gravity correction element 232 pushes the component 1 to be assembled against one side of the component 1, so that the component 1 is positioned on the circuit board 2 to meet the requirements. It should be noted that when placing the component 1 to be assembled on the circuit board 2, it is usually placed close to one edge of the circuit board 2 (called the feature edge), and the position where the component 1 meets the requirements will be closer to the center of the circuit board 2 than the placement position. At this time, the gravity correction element 232 is located on one side of the feature edge. During the correction process, the gravity correction element 232 pushes the component 1 to be assembled a certain distance towards the center of the circuit board 2, thereby reaching the position that meets the requirements.

[0076] In some alternative embodiments, multiple gravity correction elements 232 are provided, and the multiple gravity correction elements 232 are arranged at intervals along the circumference of the component 1 to be assembled, so as to cooperate with each other to form a limiting space for limiting the component 1 to be assembled. In this way, the component 1 to be assembled can be limited in both the gravity direction and the horizontal direction, further ensuring the position of the component 1 to be assembled on the circuit board 2 and preventing the component 1 to be assembled from shifting position during the reflow process.

[0077] In this embodiment, the mounting fixture disconnects the attraction between the first magnetic component 233 and the second magnetic component 234 during correction. The gravity correction component 232, under the influence of gravity, rotates via the pivot 250 at its heavier end (i.e., the gravity part 2321), causing the lighter end (i.e., the pushing part 2323) to rotate. During rotation, the protrusion of the pushing part 2323 contacts the component 1 to be assembled, using the gravity during rotation to push the component 1 towards the inside of the circuit board 2, achieving the purpose of lateral dimension correction of the component 1. Furthermore, the mounting fixture utilizes the elastic force of the elastic component 237 and the magnetic force of the magnetic component. When the pressure plate 210 and the support carrier 100 are not engaged, the locking component 231 automatically springs back to its initial position under the action of the elastic component 237, causing the first magnetic component 233 and the second magnetic component 234 to automatically attract each other, thereby keeping the gravity correction component 230 in its original state. The mounting fixture provided in this embodiment is used in environments with small spaces and low pressure to effectively solve the problem of component 1 being misaligned.

[0078] When using the mounting fixture provided in this embodiment, the pressure plate 210 is first installed onto the support carrier 100 containing the circuit board 2 and the component 1 to be assembled. Multiple guide posts 320 guide the plate first, and multiple spring latches 310 lock the pressure plate 210 and the support carrier 100 together. Before locking, the connecting rod 235 contacts the surface of the support carrier 100. To lock the support carrier 100 and the pressure plate 210 together, the connecting rod 235 and the locking member 231 need to move upwards by 2.8 mm.

[0079] As the locking member 231 and connecting rod 235 move upward, the second magnetic member 234 on the gravity correction member 232 and the first magnetic member 233 on the locking member 231 form a magnetic attraction structure. Furthermore, the gravity correction member 232 is connected to the fixing block 240 via a rotating shaft 250. When the locking member 231 exceeds a certain height, the magnetic force between the first magnetic member 233 and the second magnetic member 234 fails. Due to gravity, the gravity correction member 232 rotates via the rotating shaft 250, and the smaller, more powerful pushing part 2323 moves upward. During this upward movement, the boss pushes the component 1 to be assembled towards the inside of the circuit board 2. After being pushed to the edge, the gravity correction member 232 stops rotating under the protection of the fixing block 240, and the component 1 to be assembled reaches the designated edge position, achieving the correction purpose.

[0080] Specifically, in Figure 4 and Figure 5 In the indicated orientation, during the upward movement of the locking member 231, the magnetic force between the first magnetic member 233 and the second magnetic member 234 fails. At this time, the gravity correction member 232 rotates downward along the right side of the rotating shaft 250, while simultaneously lifting to the left and upward on the left side. When the boss of the gravity correction member 232 contacts the side of the component 1 to be assembled, the gravity correction member 232 pushes the component 1 to be assembled towards the center of the circuit board 2 through gravity. After pushing the component 1 to the side, the gravity correction member 232 stops moving under the restriction of the fixing block 240. At this time, the gravity pressure block 220 pre-presses the moved component 1 to be assembled. The gravity pressure block 220 and the gravity correction member 232 cooperate with each other to prevent the component 1 to be assembled from shifting during the reflow process. The support carrier 100 and the pressure plate 210 are fully engaged, and the bottom of the connecting rod 235 is in contact with the surface of the support carrier 100, which has pushed the component 1 to be assembled smoothly to the side position. At this time, the purpose of lateral push correction of the component 1 to be assembled has been completed.

[0081] It should be noted that, due to the varying mounting states of the components 1 to be assembled, the movable distance on the circuit board 2 is 0.1 mm. The initial distance between the gravity correction component 232 and the components 1 to be assembled is set to 0.3 mm to ensure that it does not interfere with the components 1 to be assembled on the circuit board 2 when connecting the pressure plate 210 and the support carrier 100. When it is necessary to remove the pressure plate 210 and the support carrier 100, the control spring latch 310 is opened, and the locking component 231 moves downward (closer to the pressure plate 210) due to the action of the elastic component 237, causing the first magnetic component 233 and the second magnetic component 234 to attract each other, so that the gravity correction component 232 is attracted to the initial position, that is, the gravity correction component 230 is in its original state.

[0082] In this embodiment, each locking member 231 is connected to multiple connecting rods 235 to improve the stability of the locking member 231 during the upward process. The elastic member 237 can be recessed and embedded in the locking member 231. When the gravity correction member 232 and the locking member 231 are fixed to the pressure plate 210, due to the recessed design of the elastic member 237, the locking member 231 is in an ejected state on the pressure plate 210 in the initial position due to the elastic force of the elastic member 237, thereby ensuring that the connecting rods 235 contact the surface of the support carrier 100 first.

[0083] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A mounting fixture, characterized in that, include: Support vehicle (100); The patch fixture (200) includes a pressure plate (210), a gravity block (220), and a gravity correction assembly (230). The pressure plate (210) is detachably connected to one side of the support carrier (100), and the gravity block (220) is slidably connected to the pressure plate (210) along the direction of gravity. The gravity correction assembly (230) is rotatably connected to the pressure plate (210).

2. The mounting fixture according to claim 1, characterized in that, The gravity correction component (230) has a corrected state and an original state relative to the pressure plate (210). The gravity correction component (230) in the corrected state abuts against the component to be assembled (1), while the gravity correction component (230) in the original state is spaced apart from the component to be assembled (1).

3. The mounting fixture according to claim 2, characterized in that, The gravity correction component (230) includes a locking element (231) and a gravity correction element (232); The locking member (231) is movably connected to the pressure plate (210) along the direction of gravity, the gravity correction member (232) is rotatably connected to the pressure plate (210), the gravity correction assembly (230) is in the correction state, one end of the gravity correction member (232) abuts against the component (1) to be assembled, and the distance between the locking member (231) and the pressure plate (210) is the first distance; When the gravity correction component (230) is in the original state, the distance between the locking member (231) and the pressure plate (210) is a second distance, and the gravity correction component (232) is connected to the locking member (231). One end of the gravity correction component (232) has a first gap with the component to be assembled (1); the first distance is greater than the second distance.

4. The mounting fixture according to claim 3, characterized in that, The locking member (231) is provided with a first magnetic element (233), the gravity correction member (232) is provided with a second magnetic element (234), the gravity correction component (230) is in the original state, and the locking member (231) and the gravity correction member (232) are magnetically connected by the first magnetic element (233) and the second magnetic element (234).

5. The mounting fixture according to claim 4, characterized in that, The pressure plate (210) is provided with a fixing block (240). The surface of the fixing block (240) facing the pressure plate (210) is provided with a rotating groove (241). The groove wall of the rotating groove (241) is connected to a rotating shaft (250). The gravity correction element (232) is sleeved on the rotating shaft (250) and can rotate around the rotating shaft (250). The fixing block (240) restricts the rotation range of the gravity correction element (232).

6. The mounting fixture according to claim 5, characterized in that, The gravity correction component (232) includes a gravity part (2321), a connecting part (2322), and a pushing part (2323) connected in sequence. The weight of the gravity part (2321) is greater than the weight of the pushing part (2323). The second magnetic component (234) is disposed on the connecting part (2322). The connecting part (2322) is disposed on the same side of the pressure plate (210) facing away from the support carrier (100) and is provided with a rotating hole (2324) for the rotating shaft (250) to pass through. The rotating hole (2324) is closer to the pushing part (2323) than the second magnetic component (234). The pressure plate (210) is provided with a first through hole (211). The pushing part (2323) is bent relative to the connecting part (2322) and passes through the first through hole (211).

7. The mounting fixture according to claim 6, characterized in that, The pushing part (2323) is an inverted T-shaped structure, and the extension direction of the end of the pushing part (2323) away from the connecting part (2322) is the same as the length direction or width direction of the component (1) to be assembled; and / or, the pushing part (2323) is provided with a boss, and the boss abuts against the component (1) to be assembled.

8. The mounting fixture according to any one of claims 3-7, characterized in that, The gravity correction assembly (230) further includes a connecting rod (235), and the locking member (231) is located on the side of the pressure plate (210) facing away from the support carrier (100). The pressure plate (210) is provided with a second through hole (212). One end of the connecting rod (235) is connected to the locking member (231), and the other end passes through the second through hole (212) and abuts against the support carrier (100). The length of the connecting rod (235) is greater than the thickness of the pressure plate (210).

9. The mounting fixture according to any one of claims 3-7, characterized in that, The gravity correction component (230) further includes a first connector (236) and an elastic member (237). The first connector (236) includes a head (2361) and a rod (2362). The head (2361) is located on the side of the locking member (231) facing away from the pressure plate (210). The rod (2362) passes through the locking member (231) and is connected to the pressure plate (210). The elastic member (237) is sleeved on the rod (2362) and abuts against the head (2361) and the locking member (231). The elastic member (237) always has a tendency to drive the locking member (231) to move closer to the pressure plate (210).

10. The mounting fixture according to any one of claims 3-7, characterized in that, The gravity correction element (232) is provided in multiple ways, and the multiple gravity correction elements (232) can be connected to the same locking element (231).

11. The mounting fixture according to any one of claims 3-7, characterized in that, The gravity correction component (232) is provided in multiple ways, and the multiple gravity correction components (232) are arranged at intervals along the circumference of the component (1) to be assembled.

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