A reflow soldering machine clamping plate positioning device

Abstract

The utility model relates to surface mounting process technical field especially is a kind of reflow soldering machine splint positioning device, including reflow soldering machine ontology, the top of reflow soldering machine ontology is fixedly arranged with the transmission channel for transmission PCB board, the top of transmission channel is fixedly connected with heating bin, the heating bin is used to realize the welding processing of tantalum capacitor, transmission channel's inner wall is provided with transmission chain ontology, the top of transmission chain ontology is fixedly arranged with several limit protrusions at equal intervals, the top of limit protrusion is provided with clamping assembly. The device can be placed fixed PCB board quickly without stopping equipment by the setting of independent first frame and second frame, cooperation limit protrusion, without stopping equipment operation, and by the setting of coating layer, whether extruding block is rotated and adhered on PCB board can be observed by auxiliary staff.

Description

Technical Field

[0001] This utility model relates to the field of surface mount technology, specifically to a reflow soldering machine clamp positioning device. Background Technology

[0002] Reflow soldering is a core process in the surface mount manufacturing process that determines the quality of the final product. Its core principle is to use forced hot air circulation with precise temperature control in multiple temperature zones to melt the pre-printed solder paste on the PCB board according to the set temperature curve, wet the pads and component leads, and then cool and solidify to achieve a reliable electrical and mechanical connection between the components and the PCB, especially in the process of adapting tantalum capacitor soldering.

[0003] In the typical soldering process, PCB boards are transported via a transmission chain. To prevent the PCB boards from shifting in position during the reflow soldering machine, a clamping positioning structure is required to hold the PCB boards in place.

[0004] Chinese utility model patent CN217551369U discloses a reflow soldering machine clamping plate positioning device, which includes "mounting plates bolted to both the left and right sides of the front and rear parts of the reflow soldering machine workbench, and a rotating shaft connected to the middle of the inner side of the mounting plate by a transverse bearing, wherein a sprocket is keyed to the inner end of the rotating shaft; the two sprockets on the left and the two sprockets on the right are connected by a transmission chain"; however, in the prior art, the automatic reset positioning clamping plate structure is integrated into the transmission chain, which requires the operator to stop the machine intermittently to install the PCB board with tantalum capacitor when continuous soldering is required, making continuous soldering operation inconvenient. Summary of the Invention

[0005] The purpose of this utility model is to provide a reflow soldering machine clamp positioning device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a reflow soldering machine clamp positioning device, comprising a reflow soldering machine body, a transmission channel for transmitting PCB boards fixedly provided at the top of the reflow soldering machine body, a heating chamber fixedly connected at the top of the transmission channel, the heating chamber being used for soldering tantalum capacitors, a transmission chain body being provided in the inner wall of the transmission channel, and a plurality of limiting protrusions being fixedly provided at equal intervals at the top of the transmission chain body, the limiting protrusions being used to limit the position of the clamping components;

[0007] The top of the limiting protrusion is provided with a clamping component for clamping the PCB board.

[0008] Preferably, the clamping assembly includes a first frame, on which a support platform is fixedly connected to both inner walls of the first frame. The support platform is used to abut against the corner of the PCB board to achieve bottom support. Two pressing blocks are symmetrically hinged to the inner wall of the first frame. The two pressing blocks are arranged one-to-one with the two support platforms. The gap between the pressing blocks and the support platforms forms an installation space for placing the PCB board. The pressing blocks are used to clamp the PCB board.

[0009] The inner wall of the first frame is also provided with a locking element for controlling the opening, closing and locking of the extrusion block.

[0010] Preferably, the first frame is a U-shaped structure, and a second frame with the same structure is slidably fitted on the outer wall of the first frame. The first frame and the second frame are combined to form a mounting bracket that fits the PCB board.

[0011] The outer wall of the first frame is threaded with a threaded rod, and one end of the threaded rod is fixedly connected to a handle. The bottom of both sides of the first and second frames are provided with mounting holes that are engaged with the limiting protrusions.

[0012] Preferably, the locking member includes a mounting cavity formed inside the first frame, a transmission rod rotatably connected to the inner wall of the mounting cavity, and the outer peripheral wall of the transmission rod being fixedly connected to the shaft ends of the two pressing blocks.

[0013] The outer wall of the transmission rod is provided with a threaded groove, which is used to control the maximum rotation angle of the transmission rod. A protrusion is slidably fitted in the inner wall of the threaded groove. A push plate is slidably fitted in the outer wall of the transmission rod, and the inner wall of the push plate is fixedly connected to the protrusion.

[0014] Preferably, a locking plate for limiting the position of the push plate is hinged to the outer wall of the push plate, a torsion spring is provided on the shaft end of the locking plate, and a plug hole is provided on the locking plate. A limit rod is inserted into the plug hole, and the limit rod is fixedly connected to the top end of the first frame.

[0015] Preferably, the locking component further includes a movable groove formed inside the first frame, the movable groove being connected to the mounting cavity, a display panel being slidably connected to the inner wall of the movable groove, and a coating layer being coated on the top of the display panel for displaying the installation status of the PCB board;

[0016] The outer wall of the display panel is provided with an inclined groove, and a slider is slidably fitted in the inner wall of the inclined groove. One end of the slider is hinged to a telescopic rod, and the end of the telescopic rod away from the slider is hinged to a guide block. The guide block is fixedly connected to the outer peripheral wall of the transmission rod.

[0017] To facilitate observation by staff:

[0018] Further configuration: The paint layer consists of two color sections, red and yellow.

[0019] By adopting the above technical solution, when the coating layer slides in the movable tank, the staff can only observe one color, thereby helping the staff to identify whether the PCB board is installed in place.

[0020] The beneficial effects of this utility model are as follows:

[0021] In this invention, by setting up independent first and second frames, and with the help of limiting protrusions, a fixed PCB board can be quickly placed without stopping the equipment, and the equipment operation can be stopped.

[0022] In this invention, the coating layer helps workers observe whether the extrusion block rotates and adheres to the PCB board.

[0023] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0025] Figure 2 This is a three-dimensional structural diagram of the transmission channel of this utility model;

[0026] Figure 3 This is a schematic diagram of the three-dimensional structure of the clamping component of this utility model. Figure 1 ;

[0027] Figure 4 This is a schematic diagram of the three-dimensional structure of the clamping component of this utility model. Figure 2 ;

[0028] Figure 5 This is a schematic cross-sectional view of the first frame structure of this utility model;

[0029] Figure 6 This is a schematic diagram of the connection structure between the push plate and the transmission rod of this utility model;

[0030] Figure 7 This is a three-dimensional structural diagram of the display panel of this utility model.

[0031] In the diagram: 1. Reflow soldering machine body; 2. Transmission channel; 3. Heating chamber; 4. Transmission chain body; 5. Limiting protrusion; 6. Clamping assembly; 61. First frame; 62. Support platform; 63. Extrusion block; 64. Locking component; 641. Mounting cavity; 642. Transmission rod; 643. Threaded groove; 644. Protrusion; 645. Push plate; 646. Locking plate; 647. Insertion hole; 648. Limiting rod; 649. Movable groove; 6410. Display board; 6411. Coating layer; 6412. Inclined groove; 6413. Slider; 6414. Telescopic rod; 6415. Guide block; 65. Second frame; 66. Threaded rod; 67. Handle; 68. Mounting hole. Detailed Implementation

[0032] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.

[0033] Please see Figures 1 to 7 A reflow soldering machine clamping plate positioning device includes a reflow soldering machine body 1. A transmission channel 2 for transmitting PCB boards is fixedly provided at the top of the reflow soldering machine body 1. A heating chamber 3 is fixedly connected to the top of the transmission channel 2. The heating chamber 3 is used to perform soldering of tantalum capacitors. A transmission chain body 4 is provided in the inner wall of the transmission channel 2. A plurality of limiting protrusions 5 are fixedly provided at equal intervals at the top of the transmission chain body 4. The limiting protrusions 5 are used to limit the position of the clamping component 6.

[0034] The top of the limiting protrusion 5 is provided with a clamping component 6 for clamping the PCB board.

[0035] In this embodiment, as Figure 2 , Figure 3 and Figure 4 As shown, the clamping assembly 6 includes a first frame 61, and a support platform 62 is fixedly connected to the inner walls on both sides of the first frame 61. The support platform 62 is used to abut against the corner of the PCB board to achieve bottom support. Two pressing blocks 63 are symmetrically hinged to the inner wall of the first frame 61. The two pressing blocks 63 are set one-to-one with the two support platforms 62. The gap between the pressing block 63 and the support platform 62 forms an installation space for placing the PCB board. The pressing block 63 is used to clamp the PCB board.

[0036] The inner wall of the first frame 61 is also provided with a locking element 64 for controlling the opening, closing and locking of the extrusion block 63.

[0037] In this embodiment, as Figure 2 , Figure 3 and Figure 5As shown, the first frame 61 has a U-shaped structure, and a second frame 65 with the same structure is slidably fitted on the outer wall of the first frame 61. The first frame 61 and the second frame 65 are combined to form a mounting bracket that fits the PCB board.

[0038] The outer wall of the first frame 61 is threaded with a threaded rod 66, and one end of the threaded rod 66 is fixedly connected to a handle 67. The bottom of both sides of the first frame 61 and the second frame 65 are provided with mounting holes 68 that are inserted into the limiting protrusions 5.

[0039] In this embodiment, as Figure 5 , Figure 6 and Figure 7 As shown, the locking member 64 includes a mounting cavity 641 opened inside the first frame 61. A transmission rod 642 is rotatably connected to the inner wall of the mounting cavity 641. The outer peripheral wall of the transmission rod 642 is fixedly connected to the shaft ends of the two pressing blocks 63.

[0040] A threaded groove 643 is provided on the outer wall of the transmission rod 642. The threaded groove 643 is used to control the maximum rotation angle of the transmission rod 642. A protrusion 644 is slidably fitted in the inner wall of the threaded groove 643. A push plate 645 is slidably fitted on the outer wall of the transmission rod 642. The inner wall of the push plate 645 is fixedly connected to the protrusion 644.

[0041] In this embodiment, as Figure 5 and Figure 6 As shown, a locking plate 646 for limiting the position of the push plate 645 is hinged to the outer wall of the push plate 645. A torsion spring is provided on the shaft end of the locking plate 646. An insertion hole 647 is provided on the locking plate 646. A limit rod 648 is inserted into the insertion hole 647. The limit rod 648 is fixedly connected to the top end of the first frame 61.

[0042] In this embodiment, as Figure 5 , Figure 6 and Figure 7 As shown, the locking member 64 also includes a movable groove 649 opened inside the first frame 61. The movable groove 649 is connected to the mounting cavity 641. A display panel 6410 is slidably connected in the inner wall of the movable groove 649. A coating layer 6411 is coated on the top of the display panel 6410. The coating layer 6411 is used to display the installation status of the PCB board.

[0043] The outer wall of the display panel 6410 is provided with a sloping groove 6412. A slider 6413 is slidably fitted in the inner wall of the sloping groove 6412. One end of the slider 6413 is hinged to a toggle telescopic rod 6414. The end of the toggle telescopic rod 6414 away from the slider 6413 is hinged to a guide block 6415. The guide block 6415 is fixedly connected to the outer peripheral wall of the transmission rod 642.

[0044] The coating layer 6411 is composed of two color sections: red and yellow.

[0045] The computer software involved in the hardware carriers such as the reflow soldering machine body and the drive chain body in the technical solution is software technology known to those skilled in the art. It is merely applied to the aforementioned hardware carriers. In other words, the computer software portion of the technical solution is an essential technical feature for solving the aforementioned technical problem, constituting a necessary technical feature for the technical problem solved by this application, but it is not a differentiating technical feature or a point of technical improvement. The applicant has not made any technical improvements to the computer software portion involved in the aforementioned related hardware carriers, nor is it a key technical point of the utility model application.

[0046] Therefore, the "reflow soldering machine body" and "transmission chain body" involved in this application are physical functional modules that combine computer software programs or protocols in the prior art with the hardware carrier of this application. The computer software programs involved in these physical functional modules are all technologies known to those skilled in the art and are not improvements of this application. The improvement of this application should be the interaction relationship between the various physical functional modules, that is, the improvement of the overall structure of this application, in order to solve the corresponding technical problems to be solved by this application.

[0047] The working process of the reflow soldering machine clamp positioning device is as follows:

[0048] First, the PCB board containing the tantalum capacitor is placed between the first frame 61 and the second frame 65. The PCB board is stably supported by the support platform 62 on the first frame 61 and the second frame 65. Then, the push plate 645 in the first frame 61 is manually pushed forward. The protrusion 644 on the push plate 645 slides in the threaded groove 643, thereby pushing the groove wall of the threaded groove 643, causing the transmission rod 642 to rotate clockwise. The transmission rod 642 drives the two pressing blocks 63 to rotate synchronously. The pressing blocks 63 rotate downward and fit against the PCB board, restricting the PCB board between the pressing blocks 63 and the support platform 62. At the same time, the locking plate 646 is manually pushed upward until the locking plate 646 passes the limit rod 648. The locking plate 646 is released and the locking plate 646 is reset by the torsion spring and rotates clockwise. The limit rod 648 is partially inserted into the insertion hole 647. At this time, the locking plate 646 is restricted, so the push plate 645 is locked, which restricts the transmission rod 642 from rotating.

[0049] Simultaneously, as the transmission rod 642 rotates, the guide block 6415 on the transmission rod 642 drives the actuating telescopic rod 6414 to rotate clockwise. Since the actuating telescopic rod 6414 is hinged to both the guide block 6415 and the slider 6413, the actuating telescopic rod 6414 rotates clockwise synchronously. The actuating telescopic rod 6414 pulls the slider 6413 upward, causing the slider 6413 to slide upward in the inclined groove 6412. As a result, the slider 6413 abuts against the groove wall of the inclined groove 6412, which can then push the display panel 6410 to move to the right. Figure 7 As shown, the left half of the coating layer 6411 can be observed. When the color of the display area of ​​the coating layer 6411 changes, it means that the installation is in place. Similarly, the same operation process is performed on the push plate 645 on the second frame 65. The extrusion block 63 on the second frame 65 is rotated onto the PCB board and the PCB board is pressed against the support platform 62.

[0050] Finally, the mounting bracket formed by the first frame 61 and the second frame 65 is placed on the transmission chain body 4. The mounting holes 68 on the first frame 61 and the second frame 65 are inserted into the limiting protrusions 5 to limit the displacement of the entire mounting bracket and facilitate the operation of the staff.

[0051] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0052] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0053] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. A reflow soldering machine clamp positioning device, comprising a reflow soldering machine body (1), wherein a transmission channel (2) for transmitting PCB boards is fixedly provided at the top end of the reflow soldering machine body (1), and a heating chamber (3) is fixedly connected to the top end of the transmission channel (2), wherein the heating chamber (3) is used for soldering tantalum capacitors, characterized in that: The inner wall of the transmission channel (2) is provided with a transmission chain body (4), and a number of limiting protrusions (5) are fixedly provided at equal intervals at the top of the transmission chain body (4). The limiting protrusions (5) are used to limit the position of the clamping component (6). The top of the limiting protrusion (5) is provided with a clamping component (6) for clamping the PCB board.

2. The reflow soldering machine clamp positioning device as described in claim 1, characterized in that: The clamping assembly (6) includes a first frame (61), and a support platform (62) is fixedly connected to the inner walls on both sides of the first frame (61). The support platform (62) is used to abut against the corner of the PCB board to achieve bottom support. Two pressing blocks (63) are symmetrically hinged on the inner wall of the first frame (61). The two pressing blocks (63) are arranged in a one-to-one correspondence with the two support platforms (62). The gap between the pressing blocks (63) and the support platforms (62) forms an installation space for placing the PCB board. The pressing blocks (63) are used to clamp the PCB board. The inner wall of the first frame (61) is also provided with a locking element (64) for controlling the opening and closing and locking of the squeezing block (63).

3. The reflow soldering machine clamp positioning device as described in claim 2, characterized in that: The first frame (61) is a U-shaped structure, and a second frame (65) with the same structure is slidably fitted on the outer wall of the first frame (61). The first frame (61) and the second frame (65) are combined to form a mounting bracket that fits the PCB board. The outer wall of the first frame (61) is threaded with a threaded rod (66), and one end of the threaded rod (66) is fixedly connected to a handle (67). The threaded rod (66) is used to press against the second frame (65) to lock the distance between the second frame (65) and the first frame (61). The first frame (61) and the second frame (65) are provided with mounting holes (68) at the bottom of both sides corners, which are engaged with the limiting protrusions (5).

4. The reflow soldering machine clamp positioning device as described in claim 2, characterized in that: The locking member (64) includes a mounting cavity (641) opened inside the first frame (61), and a transmission rod (642) is rotatably connected to the inner wall of the mounting cavity (641). The transmission rod (642) is used to control the rotation of the extrusion block (63), and the outer peripheral wall of the transmission rod (642) is fixedly connected to the shaft ends of the two extrusion blocks (63). The outer wall of the transmission rod (642) is provided with a threaded groove (643), which is used to control the maximum rotation angle of the transmission rod (642). A protrusion (644) is slidably fitted in the inner wall of the threaded groove (643). A push plate (645) is slidably fitted in the outer wall of the transmission rod (642). The inner wall of the push plate (645) is fixedly connected to the protrusion (644). The push plate (645) is threadedly fitted with the transmission rod (642) through the protrusion (644) and the threaded groove (643).

5. The reflow soldering machine clamp positioning device as described in claim 4, characterized in that: A locking plate (646) for limiting the position of the push plate (645) is hinged to the outer wall of the push plate (645). A torsion spring is provided on the shaft end of the locking plate (646). A plug hole (647) is provided on the locking plate (646). A limit rod (648) is inserted into the plug hole (647). The limit rod (648) is fixedly connected to the top end of the first frame (61). The limit rod (648) is used to cooperate with the locking plate (646) to lock the position of the push plate (645).

6. The reflow soldering machine clamp positioning device as described in claim 5, characterized in that: The locking component (64) also includes a movable groove (649) opened inside the first frame (61), the movable groove (649) is connected to the mounting cavity (641), and a display panel (6410) is slidably connected in the inner wall of the movable groove (649). The top of the display panel (6410) is coated with a paint layer (6411), and the paint layer (6411) is used to display the installation status of the PCB board. The outer wall of the display panel (6410) is provided with a sloping groove (6412), and a slider (6413) is slidably fitted in the inner wall of the sloping groove (6412). One end of the slider (6413) is hinged to a telescopic rod (6414), and the end of the telescopic rod (6414) away from the slider (6413) is hinged to a guide block (6415). The guide block (6415) is fixedly connected to the outer peripheral wall of the transmission rod (642).

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