Positioning jig for PCB (printed circuit board) to pass through furnace

Abstract

The utility model relates to the technical field of PCB (printed circuit board) jigs, in particular to a PCB furnace-passing positioning jig, which comprises a carrier plate and a pressing piece, the periphery of the carrier plate is convexly provided with a plurality of groups of protection blocks, the plurality of groups of protection blocks are connected with each other, the inner walls of the plurality of groups of protection blocks and the carrier plate enclose to form an accommodating cavity, and the pressing piece is arranged in the accommodating cavity. A plurality of avoiding holes are formed in the carrier plate facing the accommodating cavity; the pressing and holding piece comprises a mounting frame, an adjusting structure and a pressing structure, the mounting frame abuts against the carrier plate and is connected to the inner wall of the protection block, the mounting frame is provided with a mounting part facing the receding hole, the pressing structure is rotationally connected to the mounting part, the adjusting structure is connected to the pressing structure, and the adjusting structure is connected to the pressing structure. And a locking part is arranged relative to the mounting frame. According to the utility model, the PCB can be installed efficiently and stably.

Description

TECHNICAL FIELD

[0001] The utility model relates to PCB fixture technical field, especially a kind of PCB board furnace positioning fixture. BACKGROUND

[0002] PCB is usually called printed circuit board, and is called printed board, and is one of core components in electronic industry system.No matter the size shape of electronic equipment, and it is not divided into military equipment and civil equipment, as long as the electronic equipment involves integrated circuit and other electronic components, in order to make each electronic component be connected, control, printed board is needed.

[0003] And in the production process of printed board, electronic component is inserted on PCB board, then PCB board is installed on transmission mechanism, and the pin of component faces furnace setting, PCB board is transmitted through furnace, and pin will contact tin water to reach the effect of tin.

[0004] In the related art, the jig is provided with a containing bin, and the containing bin is provided with a through hole relative to the component pin, so that the component pin can be conveniently soldered by penetrating the jig, a plurality of bolts are arranged on the side of the containing bin, and each bolt is rotatably connected to a set of adjustable pressure blocks facing the through hole, so that the adjustable pressure blocks can clamp the PCB board by cooperating with the containing bin, so that the PCB board can be stably soldered without affecting other positions. However, only one adjustable pressure block cannot guarantee that the PCB board can be stably installed at a specified position, and the adjustable pressure block will also be heated after soldering, which will make it difficult to take out the PCB board. UTILITY MODEL CONTENTS

[0005] The main purpose of the utility model is to provide a kind of PCB board furnace positioning jig, to enable efficient and stable installation of PCB board.

[0006] To achieve the above purpose, the utility model provides a kind of PCB board furnace positioning jig, including carrier plate and pressure holding piece:

[0007] The periphery of the carrier plate is provided with a protective block, the protective block is provided with multiple groups, the multiple groups of protective blocks are connected to each other, the inner wall of the multiple groups of protective blocks and the carrier plate form a containing cavity, and the carrier plate is provided with a plurality of avoiding holes facing the containing cavity;And

[0008] The pressure holding piece includes mounting frame, adjusting structure and pressing structure, the mounting frame is abutted to the carrier plate and connected to the inner wall of the protective block, the mounting frame is provided with mounting portion facing the avoiding hole, the pressing structure is rotatably connected to the mounting portion, and the adjusting structure is connected to the pressing structure and provided with locking portion relative to the mounting frame.

[0009] In an embodiment of the present application, the pressing structure comprises a pressure piece and a pressing piece.

[0010] The pressure piece is rotationally connected to the mounting frame and has a mounting slot facing the avoiding hole; and

[0011] The pressing piece is arranged in the mounting slot and has a locking structure opposite to the mounting slot, the locking structure abuts against the pressure piece, and the pressing piece has a pressing block facing the carrier plate.

[0012] In an embodiment of the present application, the locking structure comprises a clamping piece and a bolt, the clamping piece is clamped to the pressure piece, the bolt is screwed to the pressing piece and abuts against the clamping piece, and two groups of the locking structure are oppositely arranged, and the two groups of the locking structure are wrapped around the pressure piece.

[0013] In an embodiment of the present application, the adjusting structure comprises an adjusting segment, a locking part and a handle:

[0014] The adjusting segment comprises a first locking end and a second locking end, the first locking end is rotationally connected to the end of the pressure piece close to the mounting frame, the second locking end abuts against the mounting frame, and the end of the second locking end away from the first locking end is provided with a matching slot;

[0015] One end of the locking part is rotationally connected to the second locking end, the other end is rotationally connected to one end of the mounting frame away from the pressure piece, and the locking part is slidingly connected to the matching slot; and

[0016] The handle is connected to the matching slot and gradually extends along the extension direction of the adjusting segment.

[0017] In an embodiment of the present application, the mounting frame is provided with a limiting part facing the mounting slot, the limiting part is between the pressure piece and the locking part, and the second locking end abuts against the limiting part.

[0018] In an embodiment of the present application, the pressing piece is provided with a plurality of groups, the plurality of groups of the pressing piece are uniformly distributed at intervals, each of the pressing pieces corresponds to one of the protective blocks, the handle is connected to the protective blocks and has a grip along the extension direction of the corresponding protective blocks, and the connected grips are connected together to form an adjusting part.

[0019] In an embodiment of the present application, the avoiding hole is provided with a plurality of groups, the plurality of groups of the avoiding hole are arranged at intervals in the accommodating cavity, the plurality of groups of the avoiding hole and the carrier plate form a loading part, the loading part is provided facing the protective blocks and has a contact part at the end away from the loading part, the outer edge of the contact part is provided with a first protective part opposite to the avoiding hole, and the first protective part wraps around the contact part.

[0020] In an embodiment of the present application, the avoiding hole is provided with a second protection part facing the loading part, the second protection part is wrapped around the avoiding hole, and an outer edge of the second protection part is provided with a third protection part wrapped around the second protection part.

[0021] The utility model discloses technical scheme through adopting the positioning fixture is divided into the carrier plate and the pressure holding piece from structure, the carrier plate is used for preventing PCB board, is used for guaranteeing the stability of PCB board installation, and the protection is carried out to PCB board, avoids the pollution of other positions of board while soldering in the specified position, and the pressure holding piece is used for guaranteeing that PCB board can be placed more stably on the carrier plate, and the material of the carrier plate itself is the material such as synthetic stone that can effectively resist high temperature, and this material is not easy to damage, but in order to improve the protection effect to PCB board, a plurality of protection blocks are protruded on the circumference of the carrier plate, and the protection block can be a whole set of synthetic stone carved out, but this will waste a lot of stone materials, and heat-resistant plastic or other materials can also be used, fixed through the bolt or connecting structure, which can save cost and facilitate the replacement of the protection block, the protection block and the carrier plate enclose the accommodating cavity, which is used for installing the PCB board, a plurality of avoiding grooves are arranged in the accommodating cavity to allow the pins of the electronic components to pass through, facilitating soldering, the carrier plate is provided with a connecting part away from the protection block, the connecting part can facilitate the mounting of the soldering mechanism on the carrier plate, and the pressure holding piece is composed of a mounting frame, an adjusting structure and a pressing structure, the mounting frame is mounted in the accommodating cavity and located at the side edge of the avoiding hole, the mounting frame is provided with a mounting part facing the direction of the avoiding groove, the adjusting structure and the pressing structure can be mounted on the mounting part and face the PCB board, which can facilitate the pressing of the board, the pressing structure is rotationally connected to the mounting part, the adjusting structure can be connected to the pressing structure and has a locking part relative to the mounting frame, the locking part can utilize the lever principle to make the pressing structure press down when the adjusting structure is pulled, the locking part is connected to the adjusting structure, and the mounting frame is also provided with a matching locking piece, when the pressing structure presses the board due to the adjusting structure, the locking part abuts against the locking piece, achieving the purpose of locking the whole structure, through the above structure, the PCB board can be quickly and stably mounted / dismounted, and the soldering efficiency can be effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained according to the structures shown in these drawings without creative labor for those skilled in the art.

[0023] Figure 1 It is an embodiment of the structure schematic view of the present application PCB board furnace positioning jig;

[0024] Figure 2 Figure 1 is a perspective view of the PCB furnace positioning jig according to the present application;

[0025] Figure 3 Figure 1 is a perspective view of the PCB furnace positioning jig according to the present application;

[0026] Brief Description of the Drawings:

[0027] 1, carrier plate; 11, protective block; 12, containing cavity; 13, avoiding hole; 2, loading part; 21, second protective part; 22, third protective part; 3, contact part; 31, first protective part; 4, pressing piece; 5, mounting frame; 51, limiting part; 52, mounting groove; 6, adjusting structure; 61, adjusting section; 611, first locking end; 612, second locking end; 613, matching groove; 62, locking part; 63, handle; 631, grip; 7, pressing structure; 71, pressure piece; 72, pressing piece; 73, locking structure; 731, clamping piece; 732, bolt; 74, pressing block.

[0028] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application.

[0030] Reference Figures 1 to 3 In an embodiment of the present application, a PCB furnace positioning jig is provided, which comprises a carrier plate 1 and a pressing piece 4. The peripheral edge of the carrier plate 1 is provided with protective blocks 11, the protective blocks 11 are provided in multiple groups, the multiple groups of protective blocks 11 are connected to each other, the inner walls of the multiple groups of protective blocks 11 and the carrier plate 1 form a containing cavity 12, and the carrier plate 1 is provided with a plurality of avoiding holes 13 facing the containing cavity 12. The pressing piece 4 comprises a mounting frame 5, an adjusting structure 6 and a pressing structure 7. The mounting frame 5 is abutted to the carrier plate 1 and connected to the inner wall of the protective block 11. The mounting frame 5 is provided with a mounting part facing the avoiding hole 13. The pressing structure 7 is rotationally connected to the mounting part. The adjusting structure 6 is connected to the pressing structure 7 and provided with a locking part 62 relative to the mounting frame 5.

[0031] In a PCB furnace positioning jig of the application, the positioning jig is divided into a carrier plate 1 and a pressing piece 4 in structure. The carrier plate 1 is used to prevent the PCB, to ensure the stability of the PCB installation, and to protect the PCB, to avoid the pollution of other positions of the board while soldering in the designated position. The pressing piece 4 is used to ensure that the PCB can be placed more stably on the carrier plate 1. The material of the carrier plate 1 itself is a synthetic stone or other material that can effectively resist high temperature. This material is not easy to damage, but in order to improve the protection effect of the PCB, a plurality of protection blocks 11 are protruded on the periphery of the carrier plate 1. The protection blocks 11 can be a whole set of synthetic stone carved out, but this will waste a lot of stone materials. Heat-resistant plastic or other materials can also be used, fixed by bolts 732 or connecting structures. In this way, the cost can be saved, and the protection blocks 11 can be replaced conveniently. The protection blocks 11 and the carrier plate 1 enclose a receiving cavity 12 for installing the PCB. A plurality of avoiding grooves are provided in the receiving cavity 12 to allow the pins of the electronic components to pass through, facilitating soldering. The carrier plate 1 away from the protection blocks 11 is provided with a connecting part. The connecting part can facilitate the installation of the soldering mechanism on the carrier plate 1. The pressing piece 4 is composed of a mounting frame 5, an adjusting structure 6 and a pressing structure 7. The mounting frame 5 is installed in the receiving cavity 12 and located at the side edge of the avoiding hole 13. The mounting frame 5 is provided with a mounting part facing the direction of the avoiding groove. The adjusting structure 6 and the pressing structure 7 can be installed on the mounting part, so that they face the PCB, facilitating the pressing of the board. The pressing structure 7 is rotationally connected to the mounting part, and the adjusting structure 6 can be connected to the pressing structure 7 and provided with a locking part 62 relative to the mounting frame 5. The locking part 62 can utilize the lever principle to make the pressing structure 7 press down when the adjusting structure 6 is pulled. The locking part 62 is connected to the adjusting structure 6, and the mounting frame 5 is also provided with a matching locking piece. When the pressing structure 7 presses the board due to the adjusting structure 6, the locking part 62 abuts against the locking piece, achieving the purpose of locking the entire structure. Through the above structure, the PCB can be quickly and stably installed / dismounted, and the soldering efficiency can be effectively improved.

[0032] For reference Figure 3 In an embodiment of the application, the pressing structure 7 includes a pressure piece 71 and a pressing piece 72. The pressure piece 71 is rotationally connected to the mounting frame 5 and provided with a mounting groove 52 facing the avoiding hole 13. The pressing piece 72 is provided in the mounting groove 52 and provided with a locking structure 73 relative to the mounting groove 52. The locking structure 73 abuts against the pressure piece 71. The pressing piece 72 is provided with a pressing block 74 facing the carrier plate 1.

[0033] In the PCB positioning jig, the pressing structure 7 comprises a pressure piece 71 and a pressing piece 72. The pressure piece 71 is rotationally connected to the mounting frame 5 and is provided with a mounting groove 52 facing the carrier plate 1. The mounting groove 52 is used for mounting the pressing piece 72. The pressing piece 72 is arranged in the mounting groove 52 and is provided with a locking structure 73. The locking structure 73 can facilitate the maintenance of the pressing piece 72. Because the pressing piece 72 is always in a high-temperature working state, it is easy to be damaged. The structure can facilitate the replacement of the pressing piece 72. The pressing piece 72 is provided with a pressing block 74 facing the carrier plate 1. In the embodiment, the pressing block 74 is a circular table structure. The small table surface of the circular table faces the carrier plate 1 and is made of heat-resistant plastic silica gel material. The pressing block 74 can increase the contact area with the PCB and improve the stability of the pressing.

[0034] For your reference Figure 3 In an embodiment of the present application, the locking structure 73 comprises a clamping piece 731 and a bolt 732. The clamping piece 731 is clamped to the pressure piece 71. The bolt 732 is screwed to the pressing piece 72 and abuts against the clamping piece 731. The locking structure 73 is oppositely provided with two groups. The two groups of locking structures 73 are wrapped around the pressure piece 71.

[0035] In the PCB positioning jig, the locking structure 73 is composed of the clamping piece 731 and the bolt 732. In the embodiment, the outer wall of the pressing piece 72 is provided with a threaded structure. Because the locking structure 73 needs to be oppositely provided with at least two groups, the two groups of clamping pieces 731 clamp the pressure piece 71. The bolt 732 can limit the positions of the clamping piece 731 and the bolt 732 relative to the pressure piece 71. The purpose of fixing the pressing block 74 is achieved.

[0036] For your reference Figure 3 In an embodiment of the present application, the adjusting structure 6 comprises an adjusting section 61, a locking part 62 and a handle 63. The adjusting section 61 comprises a first locking end 611 and a second locking end 612. The first locking end 611 is rotationally connected to the end of the pressure piece 71 close to the mounting frame 5. The second locking end 612 abuts against the mounting frame 5. The end of the second locking end 612 away from the first locking end 611 is provided with a matching groove 613. The locking part 62 is rotationally connected to one end of the second locking end 612 and rotationally connected to the end of the mounting frame 5 away from the pressure piece 71. The locking part 62 is slidingly connected to the matching groove 613. The handle 63 is connected to the matching groove 613 and gradually extends along the extension direction of the adjusting section 61.

[0037] In the PCB positioning jig, the adjusting structure 6 comprises an adjusting section 61, a locking portion 62 and a handle 63. The adjusting section 61 comprises a first locking end 611 and a second locking end 612. The first locking end 611 is rotationally connected to the end of the pressing member 71 close to the mounting frame 5, which is the main driving part of the adjusting structure 6 to the pressing structure 7. When the first locking end 611 and the second locking end 612 abut against the mounting frame 5, the pressing member 4 is in the releasing and pressing states respectively. The end of the second locking end 612 away from the first locking end 611 is provided with a matching groove 613. The locking portion 62 is rotationally connected to the end of the second locking end 612 and the mounting frame 5 away from the pressing member 71. The locking portion 62 is slidingly connected to the matching groove 613. When the second locking end 612 abuts against the mounting frame 5, the locking portion 62 coincides with the matching groove 613, and the force arms of the two coincide, so as to lock the pressing member 4. In order to facilitate the staff to adjust the state of the pressing member 4, the matching groove 613 away from the pressing member 71 is provided with the handle 63, which can facilitate the user to operate.

[0038] For reference Figure 3 In an embodiment of the present application, the mounting frame 5 is provided with a limiting portion 51 facing the mounting groove 52. The limiting portion 51 is between the pressing member 71 and the locking portion 62. The second locking end 612 abuts against the limiting portion 51.

[0039] In the PCB positioning jig, in order to facilitate the adjustment of the state of the pressing member 4, the mounting frame 5 is provided with a limiting portion 51 relative to the mounting groove 52. When the pressing member 4 is adjusted by the handle 631, the limiting portion 51 will abut against a group of locking ends in different states, so as to facilitate the adjustment of the overall assembly, and facilitate the mounting / dismounting of the PCB.

[0040] For reference Figures 1 to 3 In an embodiment of the present application, the pressing member 4 is provided with a plurality of groups. The plurality of groups of pressing members 4 are uniformly distributed. Each pressing member 4 corresponds to a protection block 11. The handle 63 is connected to the protection block 11 and is provided with a handle 631 along the extension direction of the corresponding protection block 11. The connected handles 631 are connected together to form an adjusting portion.

[0041] In the PCB positioning jig, the pressing structure 7 is provided with a plurality of groups. The plurality of groups of pressing members 4 are uniformly distributed. In the embodiment, the pressing structure 7 is divided into two groups. The two groups are correspondingly arranged and are respectively connected to the inner edges of the protection blocks 11 on one side. The handle 63 is connected to the protection block 11. In order to facilitate the operation of a group of handles 631, the connected handles 631 in each group are connected together to form a whole. The operation of the handle 631 can synchronously adjust a group of pressing members 4. The mounting frames 5 of a group of pressing members 4 are connected together to form a limiting structure. The PCB can be limited by the limiting structure, so that the whole structure is more convenient to use.

[0042] With reference to Figures 1 to 2 In an embodiment of the present application, the plurality of groups of the avoiding holes 13 are arranged at intervals in the accommodating cavity 12, and the plurality of groups of the avoiding holes 13 and the carrier plate 1 form the loading part 2, the loading part 2 is arranged to face the protection block 11, and the end part away from the loading part 2 is arranged to have the contact part 3, and the outer edge of the contact part 3 is arranged to have the first protection part 31 surrounding the contact part 3.

[0043] In a PCB passing through the oven positioning jig of the present application, the plurality of groups of the avoiding holes 13 are arranged according to requirements, and the avoiding holes 13, the carrier plate 1 and the mounting frame 5 of the pressing part 4 together form the loading part 2, and the end surface of the carrier plate 1 away from the loading part 2 is arranged to have the contact part 3, because when the PCB is installed in the loading part 2, the orthographic projection will completely surround the contact part 3, and the side edge of the PCB is easy to deform after being subjected to high temperature, therefore, in order to protect the side edge of the PCB, the first protection part 31 is arranged at the outer edge of the contact part 3 and surrounds the avoiding holes 13, and the PCB can be protected by using asbestos net and other materials that can prevent burning and heat concentration.

[0044] With reference to Figure 1 In an embodiment of the present application, the avoiding holes 13 are arranged to have the second protection part 21 facing the loading part 2, the second protection part 21 surrounds the avoiding holes 13, the outer edge of the second protection part 21 is arranged to have the third protection part 22, and the third protection part 22 surrounds the second protection part 21.

[0045] In a PCB passing through the oven positioning jig of the present application, the loading part 2 is arranged to have the second protection part 21 and the third protection part 22, the second protection part 21 and the first protection part 31 are similar, and the structure surrounds the avoiding holes 13 arranged to face one end of the pressing part 4, which is used to avoid heat concentration and burning of the PCB, and the third protection part 22 surrounds the second protection part 21 and fills other positions of the loading part 2, the third protection part 22 can be flexible and made of silica gel, plastic and other materials with strong heat protection capability, which can make the pressing part 4 more easily press the PCB, make the whole jig work stably, further protect the PCB, through the above structure, the whole jig can more quickly and stably load the PCB, improve the soldering efficiency, avoid the board shaking, and improve the product quality.

[0046] The same or similar reference numerals in the drawings of the embodiments correspond to the same or similar components; in the description of the present application, it is understood that if the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right" and the like are based on the orientations or positional relationships shown in the drawings, they are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationships in the drawings are only used for exemplary illustration, and cannot be understood as a limitation on the present patent, for those skilled in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0047] The above is only a preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A PCB board furnace positioning jig, characterized in that, The utility model provides a kind of protective block and pressure holding piece for supporting and protecting the wafer, comprising: The peripheral flange of the carrier plate is provided with a plurality of protective blocks, the inner walls of the plurality of protective blocks are connected to each other, and the carrier plate and the inner walls of the plurality of protective blocks form a containing cavity. The carrier plate is provided with a plurality of avoiding holes facing the containing cavity.

2. The PCB board through furnace positioning jig according to claim 1, wherein, The pressure holding piece comprises a mounting frame, an adjusting structure and a pressing structure. The mounting frame is connected to the inner wall of the protective block and abuts against the carrier plate. The mounting frame is provided with a mounting portion facing the avoiding hole.

3. The PCB board through furnace positioning jig of claim 2, wherein, The pressing structure is rotatably connected to the mounting portion.

4. The PCB board through furnace positioning jig of claim 3, wherein, The adjusting structure is connected to the pressing structure and is provided with a locking portion relative to the mounting frame. The pressing structure comprises: A pressure piece is rotatably connected to the mounting frame and is provided with a mounting slot facing the avoiding hole. A pressing piece is provided in the mounting slot and is provided with a locking structure relative to the mounting slot.

5. The PCB board through furnace positioning jig of claim 4, wherein, The locking structure abuts against the pressure piece.

6. The PCB board through furnace positioning jig of claim 4, wherein, The locking structure is provided with two groups relative to each other.

7. The PCB board through furnace positioning jig according to any one of claims 1 to 4, characterized in that, The two groups of locking structures wrap around the pressure piece.

8. The PCB board through furnace positioning jig of claim 7, wherein, The adjusting structure comprises: An adjusting section comprises a first locking end and a second locking end. The first locking end is rotatably connected to the end of the pressure piece close to the mounting frame. The second locking end abuts against the mounting frame. The end of the second locking end away from the first locking end is provided with a matching slot. A locking portion is rotatably connected to one end of the second locking end and the other end of the mounting frame away from the pressure piece. The locking portion is slidably connected to the matching slot. A handle is connected to the matching slot and gradually extends along the extension direction of the adjusting section. The mounting frame is provided with a limiting portion facing the mounting slot. The limiting portion is between the pressure piece and the locking portion. The second locking end abuts against the limiting portion. The pressure holding piece is provided with a plurality of groups. Each pressure holding piece corresponds to a protective block. The handle is connected to the protective block and is provided with a grip along the extension direction of the corresponding protective block. The avoiding holes are provided with a plurality of groups. The plurality of avoiding holes are spaced apart in the containing cavity. The plurality of avoiding holes form a loading portion with the carrier plate. The loading portion is provided facing the protective block and is provided with a contact portion at the end away from the loading portion. The outer edge of the contact portion is provided with a first protective portion relative to the avoiding hole. The first protective portion wraps around the contact portion. The avoiding hole is provided with a second protective portion facing the loading portion. The second protective portion wraps around the avoiding hole. The outer edge of the second protective portion is provided with a third protective portion. The third protective portion wraps around the second protective portion.

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