Adapter PCB board fixing jig

Abstract

The utility model provides an adapter PCB board fixing jig, including jig base, support vertical board, pressure tight cover, first pressure tight subassembly, second pressure tight subassembly and third pressure tight subassembly, be equipped with the placement groove on the jig base, the lower extreme of support vertical board is fixed on the jig base, support vertical board sets up two groups and respectively corresponds to the left and right sides of placement groove, support vertical board upper end is equipped with installation boss and positioning boss, installation boss corresponds to the front and back sides of positioning boss, first pressure tight subassembly includes pressure plate, pull -out block, first pressure block, first bolt, first spring and adjusting block, second pressure tight subassembly includes second pressure block, second bolt and second spring, third pressure tight subassembly includes third pressure block, third bolt and third spring, the advantage of this design is in: can in the process of conveying and to PCB board heating, always ensure that there is no relative displacement between electronic component and PCB board, improve the quality of welding.

Description

Technical Field

[0001] This utility model relates to the field of PCB board welding technology, and in particular to a PCB board fixing fixture for adapters. Background Technology

[0002] In the production process of adapter PCBs, after solder paste application, the PCB enters the component insertion station. At this point, an automated placement machine or manual operation precisely inserts or attaches the corresponding electronic components to the solder paste-coated pads. The PCB with inserted components is then sent to a dedicated PCB oven, where the solder paste is heated and cured according to a preset temperature profile, fixing the electronic components to the PCB. As the electronic components move along with the PCB into the oven via a conveyor belt, the PCB is placed on a fixture. However, traditional fixtures typically only consider the PCB's stability, neglecting the electronic components. During transport, the electronic components are prone to misalignment due to vibration, affecting the soldering effect and even causing them to detach. Therefore, it is necessary to develop an adapter PCB fixture to address these issues. Utility Model Content

[0003] The purpose of this invention is to provide an adapter PCB board fixing fixture to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] An adapter PCB board fixing fixture includes a fixture base, a support plate, a clamping cover plate, a first clamping assembly, a second clamping assembly, and a third clamping assembly. The fixture base has a placement groove. The lower end of the support plate is fixed to the fixture base. Two sets of support plates are provided, corresponding to the left and right sides of the placement groove, respectively. The upper end of the support plate has a mounting boss and a positioning boss, with the mounting boss corresponding to the front and rear sides of the positioning boss. The left and right ends of the clamping cover plate correspond to the top of the two sets of support plates, respectively. The clamping cover plate has an outwardly opening mounting groove and a positioning groove. The mounting boss is inserted into the outer end of the mounting groove, and the positioning boss is inserted into the positioning groove. The first clamping assembly includes a pressure plate, a lifting block, a first pressure block, a first bolt, a first spring, and an adjusting block. The lifting block and the first pressure block are fixed to the upper and lower sides of one end of the pressure plate, respectively. The first pressure block corresponds to the placement groove. Above, the first bolt passes downward through the other end of the pressure plate and the fixture base in sequence. The head of the first bolt is pressed against the upper end face of the pressure plate, and the lower end of the first bolt is threadedly connected to the adjusting block. The first spring is sleeved on the first bolt and corresponds to the space between the fixture base and the adjusting block. The second clamping assembly includes a second clamping block, a second bolt, and a second spring. The second bolt passes through the clamping cover plate and its lower end is threadedly connected to the second clamping block. The head of the second bolt is pressed against the upper end face of the clamping cover plate. The second spring is sleeved on the second bolt and corresponds to the space between the clamping cover plate and the second clamping block. The third clamping assembly includes a third clamping block, a third bolt, and a third spring. The third bolt passes through the third clamping block and its lower end is threadedly connected to the mounting boss. The third spring is sleeved on the third bolt and corresponds to the space between the head of the third bolt and the third clamping block. Both the front and rear ends of the third clamping block are in contact with the upper end face of the clamping cover plate.

[0006] Further description of the present invention: The base includes a mounting base plate and a positioning outer frame. The mounting base plate is provided with a placement groove, and the positioning outer frame is fixed on the mounting base plate and corresponds to the outer periphery of the two sets of support plates.

[0007] Further description of this utility model: The mounting base plate is also provided with an electroplating shield, which is located below the placement groove and has clearance holes.

[0008] Further description of this utility model: The mounting base plate is also provided with a part-retrieving slot, and two sets of part-retrieving slots are provided, corresponding to the left and right sides of the placement slot. The inner side of the part-retrieving slot is connected to the placement slot.

[0009] Further description of this utility model: The distance between the positioning boss and the mounting bosses on the front and rear sides is not equal.

[0010] Further description of this utility model: The support plate is also provided with weight-reducing through holes.

[0011] Further description of the present invention: It also includes a limiting component, which includes a limiting plate and a fourth bolt. The limiting plate passes through the clamping cover plate, and the upper end of the limiting plate is fixed to the clamping cover plate by the fourth bolt. The lower end of the limiting plate is provided with a limiting groove.

[0012] The beneficial effects of this utility model are as follows: Before the PCB board is placed in the fixture, the clamping cover is not yet assembled. The lifting block is held and lifted a certain distance, and the lifting block is rotated so that the first pressing block rotates outside the placement groove. At this time, the PCB board can be placed downward in the placement groove. The lifting block is lifted again and the first pressing block is rotated above the PCB board. The lifting block is released so that the first pressing block presses the PCB board. At this time, the third pressing block is rotated 90°, that is, the third pressing block is set in the left and right direction. Then, the clamping cover is placed on the support plate, the mounting boss corresponds to the mounting groove, and the positioning boss corresponds to the positioning groove. Then, the third pressing block is rotated to the front and back direction so that the front and back ends of the third pressing block press the clamping cover downward. At the same time, the second pressing block, under the action of the second spring, presses the electronic components on the PCB board, thereby ensuring that there is no relative displacement between the electronic components and the PCB board. The fixing fixture is placed on the conveyor belt and transported to the PCB oven for soldering of the electronic components. The advantage of this design is that it can ensure no relative displacement between electronic components and the PCB board during the conveying and heating process, thereby improving the quality of soldering. Attached Figure Description

[0013] Figure 1 This is an overall structural diagram of the present invention;

[0014] Figure 2 This is a partial sectional view of the present invention;

[0015] Figure 3 yes Figure 2 A magnified view of a portion of position A in the middle;

[0016] Figure 4 yes Figure 2 A magnified view of a portion of position B in the middle;

[0017] Explanation of reference numerals in the attached figures:

[0018] 1. Fixture base; 11. Mounting base plate; 111. Placement slot; 112. Electroplating shield; 1121. Clearance hole; 113. Part removal slot; 12. Positioning outer frame; 2. Support plate; 21. Mounting boss; 22. Positioning boss; 3. Pressing cover plate; 31. Mounting slot; 32. Positioning slot; 33. Weight reduction through hole; 4. First pressing assembly; 41. Pressure plate; 42. Lifting block; 43. First pressing block; 44. First bolt; 45. First spring; 46. Adjusting block; 5. Second pressing assembly; 51. Second pressing block; 52. Second bolt; 53. Second spring; 6. Third pressing assembly; 61. Third pressing block; 62. Third bolt; 63. Third spring; 7. Limiting assembly; 71. Limiting plate; 711. Limiting slot; 72. Fourth bolt. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings:

[0020] like Figures 1 to 4As shown, an adapter PCB board fixing fixture includes a fixture base 1, a support plate 2, a clamping cover plate 3, a first clamping assembly 4, a second clamping assembly 5, and a third clamping assembly 6. The fixture base 1 has a placement groove 111. The lower end of the support plate 2 is fixed to the fixture base 1. Two sets of support plates 2 are provided, corresponding to the left and right sides of the placement groove 111 respectively. The upper end of the support plate 2 has a mounting boss 21 and a positioning boss 22. The mounting boss 21 corresponds to the front and rear sides of the positioning boss 22. The left and right sides of the clamping cover plate 3 are... The two ends correspond to the top of the two sets of supporting uprights 2 respectively. The pressing cover plate 3 is provided with an outwardly opening mounting groove 31 and a positioning groove 32. The mounting boss 21 is inserted into the mounting groove 31 at the outer end, and the positioning boss 22 is inserted into the positioning groove 32. The first pressing assembly 4 includes a pressure plate 41, a lifting block 42, a first pressing block 43, a first bolt 44, a first spring 45, and an adjusting block 46. The lifting block 42 and the first pressing block 43 are respectively fixed to the upper and lower sides of one end of the pressure plate 41. The first pressing block 43 corresponds to the placement groove 111. Above, the first bolt 44 passes downward through the other end of the pressure plate 41 and the fixture base 1. The head of the first bolt 44 is pressed against the upper end face of the pressure plate 41. The lower end of the first bolt 44 is threadedly connected to the adjusting block 46. The first spring 45 is sleeved on the first bolt 44 and corresponds between the fixture base 1 and the adjusting block 46. The second clamping assembly 5 includes a second clamping block 51, a second bolt 52, and a second spring 53. The second bolt 52 passes through the clamping cover plate 3 and its lower end is threadedly connected to the second clamping block 51. The head of the second bolt 52... The first part is pressed against the upper end face of the pressing cover plate 3. The second spring 53 is sleeved on the second bolt 52 and corresponds between the pressing cover plate 3 and the second pressing block 51. The third pressing assembly 6 includes a third pressing block 61, a third bolt 62 and a third spring 63. The third bolt 62 passes through the third pressing block 61 and its lower end is threaded to the mounting boss 21. The third spring 63 is sleeved on the third bolt 62 and corresponds between the head of the third bolt 62 and the third pressing block 61. Both the front and rear ends of the third pressing block 61 are in contact with the upper end face of the pressing cover plate 3.

[0021] Before the PCB board is placed in the fixture, the clamping cover 3 is not yet assembled. Hold the lifting block 42 and lift it a short distance, then rotate the lifting block 42 to rotate the first pressing block 43 outside the placement slot 111. At this point, the PCB board can be placed face down in the placement slot 111. Lift the lifting block 42 again and rotate the first pressing block 43 above the PCB board. Release the lifting block 42 to press the first pressing block 43 against the PCB board. At this time, the third pressing block 61 is rotated 90°, i.e., the third pressing block 61 is positioned in the left-right direction. Then, the clamping cover... Plate 3 is placed on support plate 2, with mounting boss 21 corresponding to mounting groove 31 and positioning boss 22 corresponding to positioning groove 32. Next, the third pressure block 61 is rotated to a front-to-back position, causing its front and rear ends to press down on the pressure cover plate 3. Simultaneously, the second pressure block 51, under the action of the second spring 53, presses down on the electronic components on the PCB board, ensuring no relative displacement between the electronic components and the PCB board. The fixing fixture is placed on a conveyor belt and transported to the PCB oven for soldering. The advantage of this design is that it ensures no relative displacement between the electronic components and the PCB board during transport and PCB board heating, improving soldering quality.

[0022] The base includes a mounting base plate 11 and a positioning outer frame 12. The mounting base plate 11 is provided with a placement groove 111, and the positioning outer frame 12 is fixed on the mounting base plate 11 and corresponds to the outer periphery of the two sets of support plates 2.

[0023] The mounting base plate 11 is placed on the conveyor belt for conveying. The left and right sides of the conveying mechanism have guide baffles, which, in cooperation with the positioning frame 12, enable the fixing fixture to be conveyed in an accurate position on the conveyor belt.

[0024] The mounting base plate 11 is also provided with an electroplating shield 112, which is located below the placement groove 111 and has a clearance hole 1121.

[0025] By setting up the electroplating shield 112, after the PCB board is placed in the fixing fixture, electroplating can be performed on a specific area on the bottom of the PCB board, namely the location of the clearance hole 1121.

[0026] The mounting base plate 11 is also provided with a component retrieval slot 113. Two sets of component retrieval slots 113 are provided and correspond to the left and right sides of the placement slot 111. The inner side of the component retrieval slot 113 is connected to the placement slot 111. The component retrieval slot 113 is provided to facilitate the retrieval and placement of the PCB board.

[0027] The positioning boss 22 is not equidistant from the mounting bosses 21 on the front and rear sides. This serves to prevent incorrect placement and avoid the pressing cover plate 3 being placed in the wrong direction.

[0028] The support plate 2 is also provided with a weight-reducing through hole 33. The weight-reducing through hole 33 can reduce the weight of the fixing fixture on the one hand, and facilitate the observation of the clamping of the electronic components by the second clamping component 5 on the other hand.

[0029] This design also includes a limiting component 7, which includes a limiting plate 71 and a fourth bolt 72. The limiting plate 71 passes through the clamping cover plate 3. The upper end of the limiting plate 71 is fixed to the clamping cover plate 3 by the fourth bolt 72. The lower end of the limiting plate 71 is provided with a limiting groove 711.

[0030] The PCB board has some raised positions, such as positioning posts, and a limiting groove 711 is set to fit on the raised positions to further position the PCB board. On the other hand, the raised positions on the PCB board are generally asymmetrically distributed. Therefore, the asymmetrically distributed limiting groove 711 can also further prevent the pressing cover 3 from being placed in the wrong direction.

[0031] The above does not limit the technical scope of this utility model. Any modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall still fall within the scope of the technical solution of this utility model.

Claims

1. A PCB board fixing fixture for an adapter, characterized in that: The fixture includes a base, supporting plates, a clamping cover plate, a first clamping assembly, a second clamping assembly, and a third clamping assembly. The base has a placement groove. The lower end of the supporting plates is fixed to the base. Two sets of supporting plates are provided, corresponding to the left and right sides of the placement groove. The upper end of the supporting plates has a mounting boss and a positioning boss, with the mounting boss corresponding to the front and rear sides of the positioning boss. The left and right ends of the clamping cover plate correspond to the tops of the two sets of supporting plates. The clamping cover plate has an outwardly opening mounting groove and a positioning groove. The mounting boss is inserted into the outer end of the mounting groove, and the positioning boss is inserted into the positioning groove. The first clamping assembly includes a pressure plate, a lifting block, a first pressure block, a first bolt, a first spring, and an adjusting block. The lifting block and the first pressure block are fixed to the upper and lower sides of one end of the pressure plate, respectively. The first pressure block corresponds to the top of the placement groove. The first bolt passes downwards through the... The other end of the pressure plate and the fixture base are connected. The head of the first bolt is pressed against the upper end face of the pressure plate. The lower end of the first bolt is threadedly connected to the adjusting block. The first spring is sleeved on the first bolt and corresponds between the fixture base and the adjusting block. The second clamping assembly includes a second clamping block, a second bolt, and a second spring. The second bolt passes through the clamping cover plate and its lower end is threadedly connected to the second clamping block. The head of the second bolt is pressed against the upper end face of the clamping cover plate. The second spring is sleeved on the second bolt and corresponds between the clamping cover plate and the second clamping block. The third clamping assembly includes a third clamping block, a third bolt, and a third spring. The third bolt passes through the third clamping block and its lower end is threadedly connected to the mounting boss. The third spring is sleeved on the third bolt and corresponds between the head of the third bolt and the third clamping block. Both the front and rear ends of the third clamping block are in contact with the upper end face of the clamping cover plate.

2. The adapter PCB board fixing fixture according to claim 1, characterized in that: The base includes a mounting base plate and a positioning outer frame. The mounting base plate is provided with the placement groove, and the positioning outer frame is fixed on the mounting base plate and corresponds to the outer periphery of the two sets of supporting uprights.

3. The adapter PCB board fixing fixture according to claim 2, characterized in that: The mounting base plate is also provided with an electroplating shield, which is located below the placement groove and has clearance holes.

4. The adapter PCB board fixing fixture according to claim 2, characterized in that: The mounting base plate is also provided with a part retrieval slot. Two sets of part retrieval slots are provided and correspond to the left and right sides of the placement slot. The inner side of the part retrieval slot is connected to the placement slot.

5. The adapter PCB board fixing fixture according to claim 1, characterized in that: The distance between the positioning boss and the mounting bosses on the front and rear sides is not equal.

6. The adapter PCB board fixing fixture according to claim 1, characterized in that: The support plate is also provided with weight-reducing through holes.

7. The adapter PCB board fixing fixture according to claim 1, characterized in that: It also includes a limiting component, which includes a limiting plate and a fourth bolt. The limiting plate passes through the pressing cover plate, and the upper end of the limiting plate is fixed to the pressing cover plate by the fourth bolt. The lower end of the limiting plate is provided with a limiting groove.

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