Furnace passing jig

Abstract

The utility model provides a furnace passing jig. The furnace passing jig comprises a base, a first abutting piece and a second abutting piece. The base is used for being connected to an external chain and moves along with the movement of the external chain; the base is provided with an accommodating groove and a plurality of first via holes; the accommodating groove is used for accommodating a circuit board; the plurality of first via holes are communicated with the same accommodating groove and are exposed out of the welding pins of the circuit board; the first pressing piece is rotatably connected to the base and can press the circuit board in the accommodating groove; the number of the first pressing pieces is multiple, and the multiple first pressing pieces abut against the peripheral side position of the circuit board. The second abutting piece is connected to the base in a positioning mode and abuts against the middle position of the circuit board, the first abutting piece and the second abutting piece abut against the circuit board at different positions, the connecting effect of the circuit board and the base is guaranteed, the circuit board is prevented from being disengaged, the position precision of the circuit board of the furnace jig is improved, and meanwhile the circuit board is prevented from being disengaged. And the welding effect of the pins of the circuit board under the action of the furnace jig is ensured.

Description

Technical Field

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

[0002] With the development of technology, reflow oven fixtures are applied in industry to support circuit boards to be soldered. In existing technology, conventional reflow oven fixtures include a base connected to an external chain and moving with the chain; the base has a receiving groove and multiple first through holes; the receiving groove is used to accommodate the circuit board; the multiple first through holes are all connected to the same receiving groove and exposed to the soldering pins of the circuit board. However, the circuit board is prone to misalignment, resulting in poor positional accuracy of the circuit board in existing reflow oven fixtures. Utility Model Content

[0003] The purpose of this utility model is to provide a reflow fixture. A base is connected to an external chain and moves with the movement of the external chain. The base has a receiving groove and multiple first through holes. The receiving groove is used to receive a circuit board. All the first through holes are connected to the same receiving groove and expose the soldering pins of the circuit board. A first pressing member is rotatably connected to the base and can press against the circuit board in the receiving groove. Multiple first pressing members are present, each pressing against the periphery of the circuit board. A second pressing member is positioned and connected to the base and presses against the center of the circuit board. The first and second pressing members press against the circuit board at different positions, ensuring the connection between the circuit board and the base, preventing the circuit board from detaching, improving the positional accuracy of the circuit board in the reflow fixture, and simultaneously ensuring the soldering effect of the circuit board pins under the action of the reflow fixture.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a reflow fixture for supporting circuit boards to be soldered, the reflow fixture comprising:

[0005] A base for connecting to an external chain and moving with the movement of the external chain; the base has a receiving groove and a plurality of first through holes; the receiving groove is for accommodating a circuit board; the plurality of first through holes are all connected to the same receiving groove and exposed to the solder pins of the circuit board;

[0006] The first pressing member is rotatably connected to the base and is capable of pressing against the circuit board in the receiving groove; there are multiple first pressing members, and the multiple pressing members press against the peripheral side of the circuit board respectively;

[0007] The second pressing member is positioned and connected to the base, and presses against the middle of the circuit board.

[0008] Optionally, the base is provided with a positioning groove, which is located above the receiving groove;

[0009] The second pressing member is elongated and inserted into the positioning groove. The peripheral sidewall of the second pressing member is horizontally restricted by the inner sidewall of the positioning groove, so that the second pressing member can be detachably positioned on the base.

[0010] Optionally, the positioning groove is recessed in the peripheral sidewall of the base, the positioning groove has an upper opening, and the second pressing member passes through the upper opening in the vertical direction and is positioned and connected with the positioning groove.

[0011] Optionally, a plurality of the first pressing members are arranged sequentially along the outer contour of the receiving groove, and the plurality of the first pressing members are all installed on the same base and located on both sides of the positioning groove.

[0012] Optionally, the first pressing member includes a first body and a first operating part;

[0013] The first body is rotatably connected to the base and can be positioned above the receiving groove; when the first body is positioned above the receiving groove, the lower sidewall of the first body presses against the upper surface of the circuit board, and the pins of the circuit board are exposed through the first through hole;

[0014] The first operating part is connected to the first body and is located away from the part of the first body that is connected to the base; the first operating part is used for user operation and drives the first body to rotate relative to the base under the user's manual force.

[0015] Optionally, the first operating part is disposed above the first body and protrudes upward from the upper surface of the first body; the first operating part is cylindrical.

[0016] Optionally, the base is provided with a threaded hole for screw connection;

[0017] The first body is provided with a second through hole, the second through hole exposes a threaded hole, the screw passes through the second through hole, and the screw is clearance-fitted with the second through hole;

[0018] The end of the screw is housed within the first body.

[0019] Optionally, the first via is a square hole or an irregularly shaped hole.

[0020] Optionally, the furnace fixture further includes a baffle plate disposed on the lower side of the base;

[0021] The shield is connected to the base and can block part of the first via to prevent solder from reaching non-pin parts of the circuit board.

[0022] Optionally, the furnace fixture also includes a handle, which is located on the upper side of the base and is used for the user to grip;

[0023] The base has a groove on its peripheral sidewall, and the sidewall of the groove is used to contact the chain.

[0024] Compared with the prior art, the beneficial effects of this utility model are:

[0025] This utility model provides a furnace reflow fixture. A base is connected to an external chain and moves with the chain. The base has a receiving groove and multiple first through holes. The receiving groove accommodates a circuit board. All first through holes connect to the same receiving groove and expose the soldering pins of the circuit board. A first pressing member is rotatably connected to the base and presses against the circuit board in the receiving groove. Multiple first pressing members press against the periphery of the circuit board. A second pressing member is positioned and connected to the base and presses against the center of the circuit board. The first and second pressing members press against the circuit board at different positions, ensuring the connection between the circuit board and the base, preventing the circuit board from detaching, improving the positional accuracy of the circuit board in the furnace reflow fixture, and simultaneously ensuring the soldering effect of the circuit board pins under the action of the furnace reflow fixture. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings. In the following description, the same reference numerals denote the same parts.

[0028] Figure 1 A schematic diagram of a reflow fixture according to a first embodiment of this application is shown.

[0029] Figure 2 Another schematic diagram of the reflow fixture according to the first embodiment of this application is shown.

[0030] Figure 3 A cross-sectional view of a reflow fixture according to a first embodiment of this application is shown.

[0031] Figure 4 An exploded view of a furnace fixture according to a first embodiment of this application is shown.

[0032] Figure 5A schematic diagram of the base of the reflow fixture according to a third embodiment of this application is shown.

[0033] Figure 6 A schematic diagram of the first pressing member of the furnace fixture according to a third embodiment of this application is shown.

[0034] Figure Labels

[0035] 100. Furnace passing jig;

[0036] 10. Base; 10a. Receiving groove; 10b. First through hole; 10c. Positioning groove; 10d. Threaded hole; 10e. Groove;

[0037] 20. First pressing member; 21. First main body; 21a. Second through hole; 22. First operating part;

[0038] 30. Second pressing component;

[0039] 40. Blindfold;

[0040] 50. Handle. Detailed Implementation

[0041] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0042] Please refer to the attached document. Figures 1-6 This application provides a reflow fixture 100 for supporting circuit boards to be soldered.

[0043] Please refer to the attached document. Figures 1-6In this embodiment, the reflow fixture 100 includes a base 10, a first pressing member 20, and a second pressing member 30. The base 10 is connected to an external chain and moves with the movement of the external chain. The base 10 is provided with a receiving groove 10a and a plurality of first through holes 10b. The receiving groove 10a is used to receive a circuit board. The plurality of first through holes 10b are all connected to the same receiving groove 10a and exposed to the soldering pins of the circuit board. The first pressing member 20 is rotatably connected to the base 10 and can press against the circuit board located in the receiving groove 10a. The circuit board has multiple first pressing members 20, which press against the peripheral side of the circuit board. The second pressing member 30 is positioned and connected to the base 10 and presses against the middle of the circuit board. The first pressing members 20 and the second pressing members 30 press against the circuit board at different positions, which ensures the connection between the circuit board and the base 10, prevents the circuit board from detaching, improves the positional accuracy of the circuit board in the reflow fixture 100, and ensures the soldering effect of the circuit board pins under the action of the reflow fixture 100.

[0044] Please refer to the attached document. Figures 1-6 In this embodiment of the application, the base 10 serves as a support component of the furnace fixture 100, and the base 10 is used to support the circuit board, the first pressing member 20, and the second pressing member 30.

[0045] The base 10 is used to connect to an external chain and moves with the movement of the external chain to facilitate position adjustment of the base 10. The base 10 is provided with a receiving groove 10a and a plurality of first through holes 10b. The receiving groove 10a is recessed from the base 10 from top to bottom, with the opening of the receiving groove 10a facing upward. The receiving groove 10a is used to receive a circuit board to facilitate the placement of the circuit board from top to bottom in the receiving groove 10a. The plurality of first through holes 10b are all connected to the same receiving groove 10a and exposed to the solder pins of the circuit board.

[0046] The first pressing member 20 is disposed on the upper side of the base 10. The first pressing member 20 is rotatably connected to the base 10. The first pressing member 20 rotates along the axial direction of the connection between the first pressing member 20 and the base 10 to adjust the position of the first pressing member 20 relative to the base 10. The first pressing member 20 can press against the circuit board in the receiving groove 10a. There are multiple first pressing members 20, and the multiple first pressing members 20 press against the peripheral position of the circuit board respectively.

[0047] The second pressing member 30 is disposed on the upper side of the base 10. The second pressing member 30 is positioned and connected to the base 10 and presses against the middle position of the circuit board. The first pressing member 20 and the second pressing member 30 press against the circuit board at different positions, ensuring the connection effect between the circuit board and the base 10, preventing the circuit board from detaching, improving the positional accuracy of the circuit board in the furnace fixture 100, and ensuring the soldering effect of the circuit board pins under the action of the furnace fixture 100.

[0048] Please refer to the attached document. Figures 1-5 In this embodiment, the base 10 is provided with a positioning groove 10c, which is located above the receiving groove 10a. The inner contour of the positioning groove 10c is adapted to the outer contour of the circuit board. The second pressing member 30 is elongated and inserted into the positioning groove 10c. The peripheral sidewall of the second pressing member 30 is horizontally restricted by the inner sidewall of the positioning groove 10c, which ensures the positional accuracy of the second pressing member 30 relative to the base 10 and avoids the offset of the pressing position of the second pressing member 30 relative to the circuit board in the receiving groove 10a. This improves the pressing effect of the second pressing member 30 relative to the circuit board in the receiving groove 10a, and makes the second pressing member 30 detachably positioned on the base 10 so that the second pressing member 30 can be connected to or removed from the base 10, thereby improving the ease of mounting and dismounting the circuit board.

[0049] Please refer to the attached document. Figures 1-5 In this embodiment, the positioning groove 10c is recessed in the peripheral sidewall of the base 10. The positioning groove 10c has an upper opening. The second pressing member 30 passes through the upper opening in the vertical direction, which improves the assembly convenience of the second pressing member 30. The second pressing member 30 is positioned and connected with the positioning groove 10c, so that the second pressing member 30 can be positioned and connected relative to the base 10 through the positioning groove 10c, thus ensuring the positional accuracy of the second pressing member 30 relative to the base 10.

[0050] Please refer to the attached document. Figures 1-5 In this embodiment, multiple first pressing members 20 are arranged sequentially along the outer contour of the receiving groove 10a. All first pressing members 20 are mounted on the same base 10 and positioned on both sides of the positioning groove 10c. This allows the multiple first pressing members 20 to press against different positions on the periphery of the circuit board, facilitating multiple pressing positions of the circuit board by the first pressing members 20 and the second pressing members 30. This ensures the connection between the circuit board and the base 10, prevents the circuit board from detaching, improves the positional accuracy of the circuit board in the reflow fixture 100, and simultaneously ensures the soldering effect of the circuit board pins under the action of the reflow fixture 100. Specifically, there are four first pressing members 20, each arranged relative to one of the four corners of the circuit board.

[0051] Please refer to the attached document. Figures 1-6In this embodiment, the first pressing member 20 includes a first body 21 and a first operating part 22. The first body 21 is rotatably connected to the base 10 to adjust the position of the first body 21 relative to the base 10, thereby facilitating the rotation of the first pressing member 20 relative to the base 10 via the first body 21. The first body 21 can be positioned above the receiving groove 10a. When the first body 21 is positioned above the receiving groove 10a, the lower sidewall of the first body 21 presses against the upper surface of the circuit board to restrict the circuit board from moving in the vertical direction, ensuring the vertical position of the circuit board. The pins of the circuit board are exposed through the first through hole 10b, facilitating the user to perform soldering on the pins of the circuit board and ensuring the soldering effect of the circuit board pins under the action of the reflow fixture 100.

[0052] Please refer to the attached document. Figures 1-6 The first operating part 22 is connected to the first main body 21 and is located away from the part of the first main body 21 that is connected to the base 10. The first operating part 22 is used for user operation and drives the first main body 21 to rotate relative to the base 10 under the user's manual force, thereby improving the rotation convenience of the first main body 21.

[0053] Please refer to the attached document. Figures 1-6 In this embodiment of the application, the first operation part 22 is disposed above the first main body 21 and protrudes upward from the upper surface of the first main body 21; the first operation part 22 is arranged in the form of a column, which can make full use of space and improve the user's convenience in operating the first operation part 22.

[0054] Please refer to the attached document. Figures 1-6 In this embodiment, the base 10 has a threaded hole 10d for screw connection; the first body 21 has a second through hole 21a, which exposes the threaded hole 10d. The screw passes through the second through hole 21a with a clearance fit. This allows the first body 21 to rotate relative to the base 10 via the screw, ensuring the rotation effect of the first body 21 relative to the base 10, thus facilitating the first body 21 to press against or detach from the circuit board during rotation. The end of the screw is housed within the first body 21, allowing the screw end to fully utilize the internal space of the first body 21 and preventing the screw end from interfering with the user's operation of the first operating part 22.

[0055] Please refer to the attached document. Figures 1-5 In this embodiment, the first via 10b is a square hole or an irregular hole, so that the inner contour of the first via 10b can be adapted to the outer contour of the soldering pins of the circuit board, thereby facilitating the soldering pins of the circuit board to pass through the first via 10b.

[0056] Please refer to the attached document. Figures 1-4In this embodiment of the application, the reflow fixture 100 further includes a baffle plate 40, which is disposed on the lower side of the base 10. The baffle plate 40 is connected to the base 10 and can block part of the first through hole 10b so that the baffle plate 40 is fixed relative to the base 10, thereby preventing solder from reaching the non-pin parts of the circuit board, avoiding over-soldering of the circuit board, and improving the soldering effect of the circuit board pins under the action of the reflow fixture 100.

[0057] Please refer to the attached document. Figure 1 In this embodiment of the application, the furnace fixture 100 also includes a handle 50, which is disposed on the upper side of the base 10 and is used for the user to grasp; so that the user can grasp the handle 50 to transfer the furnace fixture 100, thereby improving the handling convenience of the furnace fixture 100.

[0058] Please refer to the attached document. Figure 1 The base 10 has a groove 10e on its peripheral sidewall. The sidewall of the groove 10e is used to contact the chain so that the chain can make full use of the space of the groove 10e, thereby connecting the base 10 with the chain through the groove 10e.

[0059] Compared with the prior art, the beneficial effects of this utility model are:

[0060] This utility model provides a furnace fixture 100. A base 10 is used to connect to an external chain and moves with the movement of the external chain. The base 10 is provided with a receiving groove 10a and a plurality of first through holes 10b. The receiving groove 10a is used to receive a circuit board. The plurality of first through holes 10b are all connected to the same receiving groove 10a and exposed to the soldering pins of the circuit board. A first pressing member 20 is rotatably connected to the base 10 and can press against the circuit board in the receiving groove 10a. There are multiple first pressing members 20, and the multiple first pressing members 20 press against the peripheral position of the circuit board respectively. A second pressing member 30 is positioned and connected to the base 10 and presses against the middle position of the circuit board. The first pressing members 20 and the second pressing members 30 press against the circuit board at different positions, ensuring the connection effect between the circuit board and the base 10, preventing the circuit board from detaching, improving the positional accuracy of the circuit board in the furnace fixture 100, and ensuring the soldering effect of the circuit board pins under the action of the furnace fixture 100.

[0061] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indicator will also change accordingly.

[0062] It should also be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or may be connected to an intermediary component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component through an intermediary component.

[0063] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0064] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A furnace reflow fixture, characterized in that, The reflow fixture, used to support circuit boards to be soldered, includes: A base for connecting to an external chain and moving with the movement of the external chain; the base has a receiving groove and a plurality of first through holes; the receiving groove is for accommodating a circuit board; the plurality of first through holes are all connected to the same receiving groove and exposed to the solder pins of the circuit board; The first pressing member is rotatably connected to the base and is capable of pressing against the circuit board in the receiving groove; there are multiple first pressing members, and the multiple pressing members press against the peripheral side of the circuit board respectively; The second pressing member is positioned and connected to the base, and presses against the middle of the circuit board.

2. The furnace fixture according to claim 1, characterized in that, The base is provided with a positioning groove, which is located above the receiving groove; The second pressing member is elongated and inserted into the positioning groove. The peripheral sidewall of the second pressing member is horizontally restricted by the inner sidewall of the positioning groove, so that the second pressing member can be detachably positioned on the base.

3. The furnace fixture according to claim 2, characterized in that, The positioning groove is recessed in the peripheral sidewall of the base, and the positioning groove has an upper opening. The second pressing member passes through the upper opening in the vertical direction and is positioned and connected to the positioning groove.

4. The furnace fixture according to claim 2, characterized in that, Multiple first pressing members are arranged sequentially along the outer contour of the receiving groove, and all multiple first pressing members are installed on the same base and located on both sides of the positioning groove.

5. The furnace fixture according to claim 4, characterized in that, The first pressing member includes a first body and a first operating part; The first body is rotatably connected to the base and can be positioned above the receiving groove; when the first body is positioned above the receiving groove, the lower sidewall of the first body presses against the upper surface of the circuit board, and the pins of the circuit board are exposed through the first through hole; The first operating part is connected to the first body and is located away from the part of the first body that is connected to the base; the first operating part is used for user operation and drives the first body to rotate relative to the base under the user's manual force.

6. The furnace fixture according to claim 5, characterized in that, The first operating part is disposed above the first main body and protrudes upward from the upper surface of the first main body; the first operating part is cylindrical.

7. The furnace fixture according to claim 5, characterized in that, The base is provided with a threaded hole for screw connection; The first body is provided with a second through hole, the second through hole exposes a threaded hole, the screw passes through the second through hole, and the screw is clearance-fitted with the second through hole; The end of the screw is housed within the first body.

8. The furnace fixture according to claim 1, characterized in that, The first via is a square hole or an irregularly shaped hole.

9. The furnace fixture according to claim 1, characterized in that, The furnace fixture also includes a baffle plate, which is disposed on the lower side of the base; The shield is connected to the base and can block part of the first via to prevent solder from reaching non-pin parts of the circuit board.

10. The furnace fixture according to claim 1, characterized in that, The furnace fixture also includes a handle, which is located on the upper side of the base and is used for the user to grip; The base has a groove on its peripheral sidewall, and the sidewall of the groove is used to contact the chain.

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