PCBA burning jig

Abstract

The utility model relates to a PCBA (Printed Circuit Board Assembly) burning jig which comprises a base, a plurality of support plates and crimping units, wherein the support plates are movably arranged on the base up and down; the crimping units are arranged on the base and are in one-to-one correspondence with the support plates; a plurality of elastic guide units are arranged between the carrier plate and the base, a jig plate is detachably arranged on the face, away from the base, of the carrier plate, and a profiling groove used for containing a PCBA is formed in the jig plate; and the crimping unit comprises a pressing plate positioned above the jig plate and a pressing plate driving piece for driving the pressing plate to ascend and descend so as to press and fix the PCBA plate in the profiling groove. The PCBA burning jig designed by the utility model can be compatible with different PCBAs, and meanwhile, the problem that the PCBA is pressed too loosely or too tightly due to the fact that the pressing force of the PCBAs with different thicknesses cannot be effectively adjusted is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to circuit board test technical field especially relates to a kind of PCBA programming fixture. BACKGROUND

[0002] PCBA programming refers to in PCBA processing, the program written in advance is written into the memory of PCBA, so that PCBA can realize specific function. When programming, programming fixture is needed to be used to fix PCBA, so as to automatically connect interface, in prior art, automatic fixing mode is mostly used, i.e. PCBA is fixed on programming fixture by crimping device, but programming fixture is poor in compatibility for different PCBA, and pressure force cannot be effectively adjusted for PCBA of different thickness, leading to PCBA being too loose or too tight. UTILITY MODEL CONTENT

[0003] In view of the above problems, the utility model aims at designing a kind of PCBA programming fixture, which can be compatible with different PCBA, and solve the problem that PCBA of different thickness cannot be effectively adjusted in pressure force, leading to PCBA being too loose or too tight.

[0004] The utility model aims to realize the following technical scheme:

[0005] A kind of PCBA programming fixture is designed, including base, several upper and lower movably arranged on the base carrier plate and the crimping unit being set on the base and corresponding with the carrier plate;Several elastic guide units are arranged between the carrier plate and the base, and the one side of the carrier plate away from the base is detachably provided with fixture plate, and the fixture plate is provided with profiling groove for placing PCBA;The crimping unit includes the pressing plate located above the fixture plate and the pressing plate driving part for lifting the pressing plate to press and fix PCBA plate in the profiling groove.

[0006] The PCBA programming fixture designed by the utility model realizes the programming of compatible different PCBA by configuring different types of fixture plate, and the fixture plate can be fixed on the carrier plate by bolt tightening, and when different PCBA needs to be programmed, the fixture plate can be replaced by disassembling. Meanwhile, several elastic guide units are arranged between the carrier plate and the base, and the elastic guide unit plays the role of bearing and buffer for the carrier plate, and when the pressing plate is lowered to press PCBA, the carrier plate can be lowered to a certain extent to buffer, to avoid that PCBA surface appears indentation due to excessive instantaneous pressure. In addition, for PCBA of different thickness, the descending stroke of pressing plate can be adjusted to provide appropriate pressure, and the problem of PCBA being too loose or too tight can be avoided by cooperating with the buffer function of elastic guide unit.

[0007] Further, the carrier plate comprises a first through hole corresponding to each elastic guiding unit, the elastic guiding unit comprises a first guiding column vertically arranged on the base through the first through hole, and an elastic member sleeved on the first guiding column, one end of the elastic member abuts against the base, and the other end abuts against the carrier plate.

[0008] The elastic guiding unit is composed of the first guiding column and the elastic member sleeved on the first guiding column. The elastic member can be a spring, which provides a bearing support force for the carrier plate. When the carrier plate is subjected to downward pressure, the spring can play a supporting and buffering role. The end of the first guiding column is provided with a threaded structure and is screwed on the base. During the lifting of the carrier plate, the first guiding column can play a guiding role, avoiding the phenomenon of tilting and jamming of the carrier plate.

[0009] Further, the elastic guiding unit is provided in two groups, and the two groups of elastic guiding units are located at the two ends of the carrier plate along the length direction.

[0010] The elastic guiding unit is arranged at the two ends of the carrier plate along the length direction, so that the carrier plate is evenly supported, and when the pressing plate is pressed down, the phenomenon of uneven force at the two ends and tilting is avoided.

[0011] Further, the base is further provided with a support block, the support block is located between the two first guiding columns and below the carrier plate, and the top surface of the support block is lower than the bottom surface of the carrier plate.

[0012] The support block is arranged below the carrier plate, and the carrier plate is supported when the force of the carrier plate is balanced, i.e. the carrier plate is lowered to the position, so as to improve the stability of the carrier plate.

[0013] Further, the pressing plate further comprises a plurality of pressing columns on the side facing the jig plate, and the pressing columns are used to press and fix the PCBA plate in the profiling groove.

[0014] A plurality of mounting holes are arranged on the pressing plate, the pressing columns are detachably inserted and fixed in the mounting holes, the pressing columns need to avoid the electronic elements on the PCBA, and appropriate mounting holes are selected to install the pressing columns according to the positions of the electronic elements to be avoided. In order to avoid indentation of the pressing columns on the PCBA, the end of the pressing column in contact with the PCBA can be made of silica gel material.

[0015] Further, the base is further provided with a plurality of second guiding columns, and the carrier plate is provided with a first guiding sleeve corresponding to each second guiding column.

[0016] In order to further improve the stability of the up and down movement of the carrier plate, according to the size of the carrier plate, a plurality of second guiding columns can be arranged on the base, and the carrier plate is provided with a first guiding sleeve corresponding to each second guiding column. The top ends of the second guiding columns can be connected by a connecting rod to improve the stability.

[0017] Further, four second guide columns are arranged on the base, two of which are arranged adjacent to the sides of the pressing plate driving element, and the pressing plate is provided with two second guide sleeves through which the two second guide columns pass.

[0018] The number of second guide columns can be four, each of which is located at a corner of the rectangular carrier plate, and the second guide columns adjacent to the sides of the pressing plate driving element are heightened, passing through the second guide sleeves of the pressing plate to guide the lifting of the pressing plate and improve the stability of the lifting of the pressing plate.

[0019] Further, the jig plate is also provided with a clearance around the profiling groove.

[0020] The jig plate is provided with a clearance around the profiling groove, which facilitates the removal of the PCBA from the profiling groove, and also reduces the weight of the jig plate.

[0021] Further, the base is also provided with a pushing driving element located below the carrier plate, and the pushing end of the pushing driving element can lift the PCBA plate to separate it from the profiling groove.

[0022] In addition, in order to facilitate the removal of the PCBA from the profiling groove, a through hole can be formed in the jig plate and the carrier plate at the corresponding position of the profiling groove, and a pushing driving element is installed on the base, which can be a pneumatic cylinder. The extension shaft of the pneumatic cylinder can pass through the through hole and contact the bottom of the PCBA. After the pressing plate is lifted after the PCBA is burned, the extension shaft of the pneumatic cylinder can lift the PCBA from the profiling groove, which facilitates the removal of the PCBA.

[0023] Further, the base is also provided with a quick release knob which can be fixedly connected with the burning test machine.

[0024] The quick release knob can realize the quick installation and disassembly of the burning jig, and further realize the quick mold changing. When the burning test machine needs to change the burning jig, the efficiency of mold changing can be improved, the utilization rate of the machine can be improved, and the burning output can be improved.

[0025] Compared with the prior art, the beneficial effects of the present application are:

[0026] The PCBA burning fixture designed by the utility model realizes the burning compatibility of different PCBAs by configuring different types of fixture plates, the fixture plates can be fixed on the carrier plate by screwing, and when different PCBAs need to be burned, the fixture plates can be replaced by disassembling. Meanwhile, a plurality of elastic guide units are arranged between the carrier plate and the base, the elastic guide units play the roles of bearing and buffering the carrier plate in the downward movement, when the pressing plate presses the PCBA, the carrier plate can be buffered to a certain extent to avoid the excessive instantaneous pressing force from causing the indentation on the surface of the PCBA. In addition, for the PCBAs with different thicknesses, the downward stroke of the pressing plate can be adjusted to provide appropriate downward pressure, and the elastic guide unit buffering function can avoid the problems of too loose or too tight PCBA pressing. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a structure diagram of the PCBA burning fixture of an embodiment of the utility model.

[0028] Figure 2 It is a left view. Figure 1

[0029] Figure 3 It is a structure diagram of the PCBA burning fixture (without pressing plate) of an embodiment of the utility model.

[0030] Figure 4 It is a structure of the PCBA burning fixture of an embodiment of the utility model Figure Two .

[0031] Illustration: 1, base; 11, support block; 12, second guide column; 13, quick release knob; 2, carrier plate; 21, first through hole; 22, first guide sleeve; 3, pressure connection unit; 31, pressing plate; 32, pressing plate driving piece; 33, pressure connection column; 34, second guide sleeve; 4, elastic guide unit; 41, first guide column; 42, elastic piece; 5, fixture plate; 51, profiling groove; 52, empty space; 6, push driving piece. DETAILED DESCRIPTION

[0032] In order to facilitate the understanding of the utility model, the utility model will be described more fully below with reference to the relevant drawings. The preferred embodiments of the utility model are shown in the drawings. However, the utility model can be realized in many different forms, and is not limited to the embodiments described herein.

[0033] Embodiment one:

[0034] As Figures 1 to 3 ​As shown, the embodiment provides a PCBA burning jig, which comprises a base 1, a carrier plate 2 movably arranged on the base 1, and a crimping unit 3 arranged on the base 1 and corresponding to the carrier plate 2. A plurality of elastic guide units 4 are arranged between the carrier plate 2 and the base 1. The carrier plate 2 is detachably provided with a jig plate 5 on the side away from the base 1. The jig plate 5 is provided with a profiling groove 51 for placing the PCBA. The jig plate 5 is also provided with a clearance 52 located on the side of the profiling groove 51, which facilitates the operator to take out the PCBA from the profiling groove 51 and also reduces the weight of the jig plate 5. The crimping unit 3 comprises a pressing plate 31 above the jig plate 5 and a pressing plate driving member 32 for driving the pressing plate 31 to rise and fall to press and fix the PCBA plate in the profiling groove 51. The side of the pressing plate 31 facing the jig plate 5 is also provided with a plurality of crimping columns 33 for pressing and fixing the PCBA plate in the profiling groove 51. A plurality of mounting holes are arranged on the pressing plate 31, and the crimping columns 33 are detachably inserted and fixed in the mounting holes. The crimping columns 33 need to avoid the electronic elements on the PCBA. According to the position of the electronic elements to be avoided, the appropriate mounting holes are selected to install the crimping columns 33. In order to avoid the crimping columns 33 from leaving marks on the PCBA, the end of the crimping column 33 in contact with the PCBA can be made of silica gel material. In the embodiment, the pressing plate driving member 32 is a driving air cylinder, which is vertically arranged and has an output end connected with the pressing plate 31. In addition, the connection of the PCBA interface can be in the form of automatic connection. According to the position of the PCBA interface, an automatic plug-in unit is arranged. After the PCBA is fixed, the automatic plug-in unit is controlled to plug into the interface of the PCBA, thereby realizing the burning of the PCBA.

[0035] As shown, Figures 1 to 3 In the embodiment, two groups of elastic guide units 4 are arranged. Of course, in other possible examples, the number of elastic guide units 4 can be different, which is not specifically limited here. The two groups of elastic guide units 4 are located at the two ends of the carrier plate 2 along the length direction. The elastic guide units 4 are arranged at the two ends of the carrier plate 2 along the length direction, so that the carrier plate 2 is evenly supported and is prevented from tilting due to uneven force at the two ends when the pressing plate 31 is pressed down. The carrier plate 2 comprises a first through hole 21 corresponding to each elastic guide unit 4. The elastic guide unit 4 comprises a first guide column 41 passing through the first through hole 21 and vertically arranged on the base 1, and an elastic member 42 sleeved on the first guide column 41. One end of the elastic member 42 abuts against the base 1, and the other end abuts against the carrier plate 2. The elastic member 42 can be a spring, which provides a bearing support force for the carrier plate 2. When the carrier plate 2 is subjected to downward pressure, the spring can play a supporting and buffering role. The end of the first guide column 41 is provided with a threaded structure and is screwed and fixed on the base 1. During the lifting of the carrier plate 2, the first guide column 41 can play a guiding role, thereby preventing the carrier plate from tilting and being stuck.

[0036] The PCBA burning jig of the embodiment can realize the burning of different PCBAs by configuring different types of jig plates 5. The jig plate 5 can be fixed on the carrier plate 2 by screwing, and when different PCBAs need to be burned, the jig plate 5 can be replaced by disassembling. At the same time, a plurality of elastic guide units 4 are arranged between the carrier plate 2 and the base 1, which play the role of bearing and buffering the carrier plate 2. When the pressing plate 31 is lowered to press the PCBA, the carrier plate 2 can be lowered to a certain extent to buffer, avoiding the problem that the PCBA surface is scratched due to excessive instantaneous pressing force. In addition, for PCBAs of different thicknesses, the downward stroke of the pressing plate 31 can be adjusted to provide appropriate downward pressure, which can avoid the problem of too loose or too tight PCBA pressing by cooperating with the buffering function of the elastic guide unit 4.

[0037] As shown in Figure 2 , the base 1 is also provided with a support block 11, which is located between the two first guide columns 41 and below the carrier plate 2, and the top surface of the support block 11 is lower than the bottom surface of the carrier plate 2. The support block 11 is arranged below the carrier plate 2 to support the carrier plate 2 when the carrier plate 2 is balanced, i.e. the carrier plate 2 is lowered in place, to improve the stability of the carrier plate 2.

[0038] As shown in Figures 1 to 3 , in order to further improve the stability of the upward and downward movement of the carrier plate 2, according to the size of the carrier plate 2, a plurality of second guide columns 12 can be arranged on the base 1, and the carrier plate 2 is correspondingly provided with first guide sleeves 22. The top ends of the second guide columns 12 can be connected by connecting rods to improve stability. In this embodiment, the number of second guide columns 12 can be four, located at the four corners of the rectangular carrier plate. Of course, in other possible examples, the number of second guide columns 12 can be different, which is not limited here. Two of the second guide columns 12 are arranged adjacent to the pressing plate driving member 32 and are raised, and the pressing plate 31 is provided with two second guide sleeves 34. The two second guide columns 12 pass through the second guide sleeves 34 to guide the lifting of the pressing plate 31 and improve the stability of the lifting of the pressing plate 31.

[0039] As shown in Figure 2 , the base 1 is also provided with a pushing driving member 6, which is located below the carrier plate 2. The pushing end of the pushing driving member 6 can lift the PCBA board to separate it from the profiling groove 51. In order to facilitate the removal of the PCBA from the profiling groove 51, a through hole can be formed in the jig plate 5 and the carrier plate 2 at the corresponding position of the profiling groove 51, and the pushing driving member 6 is installed on the base 1. The pushing driving member 6 can be a driving cylinder, and the telescopic shaft of the driving cylinder can contact the bottom of the PCBA through the through hole. After the PCBA is burned and the pressing plate 31 is lifted, the telescopic shaft of the cylinder can be driven to lift the PCBA from the profiling groove 51, which is convenient for the operator to take the PCBA.

[0040] As Figure 1 The base 1 is further provided with quick release knobs 13 which can be fixedly connected with the burning test platform, the quick release knobs 13 are arranged at the edge of the base 1, and the number thereof is arranged according to the actual situation. The quick release knobs 13 are used for realizing quick installation and dismounting of the burning fixture, and then realizing quick mold changing. When the burning test platform needs to change the burning fixture, the efficiency of mold changing can be improved, the utilization rate of the platform is improved, and the burning output is improved.

[0041] Embodiment two:

[0042] As Figure 4 shown, embodiment two is a deformation of embodiment one, and is suitable for another type of PCBA. The specific difference lies in that five carrier plates 2 are arranged on the base 1, and the corresponding crimping units 3 are also five, so that the burning efficiency can be improved. In addition, since the structure of the PCBA is small, it is convenient to take, so the push driving part 6 is not arranged below the carrier plate 2 for jacking the PCBA plate to separate from the profiling groove 51. The other structures of the burning fixture are similar to those of embodiment one, and will not be described in detail here.

[0043] In the description of the present application, it should be understood that the terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0044] In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0045] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A PCBA burning fixture, characterized in that, The device comprises a base, a plurality of upper and lower movable loading plates arranged on the base, and a plurality of crimping units arranged on the base and corresponding to the loading plates; a plurality of elastic guide units are arranged between the loading plates and the base, and a jig plate is detachably arranged on the side of the loading plate away from the base, and the jig plate is provided with a profiling groove for placing a PCBA; the crimping unit comprises a pressing plate above the jig plate and a pressing plate driving member for driving the pressing plate to rise and fall to press and fix the PCBA plate in the profiling groove.

2. The PCBA burning fixture of claim 1, wherein, The loading plate comprises a first through hole corresponding to the elastic guide unit, the elastic guide unit comprises a first guide column passing through the first through hole and vertically arranged on the base, and an elastic member sleeved on the first guide column, one end of the elastic member abuts against the base, and the other end abuts against the loading plate.

3. The PCBA burning fixture of claim 2, wherein, The elastic guide unit is arranged in two groups, and the two groups of elastic guide units are located at the two ends of the loading plate along the length direction.

4. The PCBA burning fixture of claim 2, wherein, The base is further provided with a support block, the support block is located between the two first guide columns and below the loading plate, and the top surface of the support block is lower than the bottom surface of the loading plate.

5. The PCBA burning fixture of claim 1, wherein, The side of the pressing plate facing the jig plate is further provided with a plurality of crimping columns for pressing and fixing the PCBA plate in the profiling groove.

6. The PCBA burning fixture of claim 1, wherein, The base is further provided with a plurality of second guide columns, and the loading plate is provided with a first guide sleeve corresponding to the second guide column.

7. The PCBA burning fixture of claim 6, wherein, The base is provided with four second guide columns, two of which are arranged adjacent to the pressing plate driving member, and the pressing plate is provided with two second guide sleeves, and the two second guide columns pass through the second guide sleeves.

8. The PCBA burning fixture of claim 1, wherein, The jig plate is further provided with an empty space located around the profiling groove.

9. The PCBA burning fixture of claim 1, wherein, The base is further provided with a pushing driving member located below the loading plate, and the pushing end of the pushing driving member can lift the PCBA plate to separate from the profiling groove.

10. The PCBA burning fixture of claim 1, wherein, The base is further provided with a quick release knob which can be fixedly connected with a burning test machine.

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