Stable PCB test fixture

Abstract

The utility model discloses a stable PCB test fixture, which comprises a PCB test fixture main body, the PCB test fixture main body comprises a test host, the middle position of the upper surface of the test host is provided with a test bottom plate, and the upper surface of the test host is fixedly provided with a vertical frame at the edge of the test bottom plate; by designing the drying processing mechanism, a proper amount of a drying agent can be injected into a drying agent storage box through an inlet, a cover plate is fixedly closed, a clamping plate is clamped into a clamping groove, so that the drying agent storage box is clamped and fixed into a mounting groove, and the PCB test fixture main body is placed at a dark position when being operated or not used; when the interior of the test host is moist, the interior of the test host is dried by a drying agent in the drying agent storage box through the meshes, so that the damage of electronic components is not easy to accelerate during use, and the convenience of drying the interior of the PCB test fixture main body during the test of a printed circuit board is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to test fixture technical field, concretely relates to a stable type PCB test fixture. BACKGROUND

[0002] PCB is called printed circuit board, also called printed wiring board, is important electronic component, is the support body of electronic components, is the carrier of electrical connection of electronic components, needs to test when processing and producing, usually tests operation through test fixture, and the existing test fixture is the equipment used for testing when processing and producing printed circuit board, is convenient for the stable down movement operation of the down pressure test plate when the test fixture tests, makes the test more stable and accurate;

[0003] The existing test fixture is directly placed in the inside of the test base when testing operation of printed circuit board, and the surface of printed circuit board is tested when the down pressure test plate is driven by the cylinder to move down, therefore, when the test fixture is not used and placed in the dark place, it is easy to cause the inside of the test fixture main machine to be humid when being placed in the dark place for a long time, and it is not convenient to dry when the test fixture is placed in the dark and humid place for a long time, which easily causes the inside to be humid and the electronic components to be damaged, and affects the convenience of the inside dry treatment of the test fixture when testing printed circuit board, therefore, the utility model provides a stable type PCB test fixture. SUMMARY

[0004] The utility model discloses a stable type PCB test fixture to solve the problem of the test fixture test operation or not using place in the dark place when being placed in the dark place for a long time, which is easy to cause the inside of the test fixture main machine to be humid, and it is not convenient to dry when the test fixture is placed in the dark and humid place for a long time, which easily causes the inside to be humid and the electronic components to be damaged, and affects the convenience of the inside dry treatment of the test fixture when testing printed circuit board.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: a stable type PCB test fixture, including PCB test fixture main body, the PCB test fixture main body includes test host computer, the upper surface middle position of test host computer is provided with test bottom plate, the upper surface of test host computer is fixedly installed with stand at the edge of test bottom plate, the top of stand is fixedly installed with cylinder through mounting bolt, the end of cylinder is provided with down pressure test plate in the inside of stand, the inside of both sides of stand is provided with stable control groove, the inside of stable control groove is provided with stable control block, stable control block is fixed with the end of down pressure test plate through mounting bolt, the PCB test fixture main body still is provided with:

[0006] The drying treatment mechanism comprises a drying agent placing assembly arranged on both sides of the test main machine, and the drying agent placing assembly is provided with an inlet and outlet assembly at the end thereof, and is provided with a clamping mounting assembly on both sides thereof.

[0007] The cleaning mechanism comprises a blowing cleaning assembly arranged inside the tail end of the test base plate.

[0008] Preferably, the drying agent placing assembly comprises a mounting groove arranged on both sides of the test main machine, and the mounting groove is provided with a drying agent storage box inside, and the inner surface of the drying agent storage box is provided with a mesh hole.

[0009] Preferably, the inlet and outlet assembly comprises an inlet arranged at the end of the mounting groove, and the inlet is provided with a clamping hole at both ends inside, and is provided with a cover plate inside, and both ends of the inner surface of the cover plate are provided with an elastic clamping body.

[0010] Preferably, the cover plate is consistent with the internal structure of the inlet, and the cover plate and the inlet are clamped and mounted through the elastic clamping body and the clamping hole.

[0011] Preferably, the clamping mounting assembly comprises a clamping groove arranged on both sides inside the mounting groove, and the drying agent storage box is integrally formed with a clamping plate on both sides, and the clamping plate is clamped and connected with the inside of the clamping groove.

[0012] Preferably, one end of the clamping plate is provided with an internal thread groove on the side surface, and the tail end of the test main machine is provided with a locking bolt which is screwed, and the end of the locking bolt is consistent with the internal structure of the internal thread groove.

[0013] Preferably, the air inlet channel is provided with an air hole at equal intervals on the inside of the test base plate, and the tail end of the test base plate is provided with an air inlet pipe which is mounted on the rear surface of the stand.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] Through the design of the drying treatment mechanism, the drying agent storage box can be clamped and fixed in the inside of the mounting groove through the clamping of the clamping plate in the inside of the clamping groove, the PCB test fixture body can be placed in a dark place during operation or non-use, the inside of the test main machine can be dried by the drying agent in the drying agent storage box through the mesh hole when the inside of the test main machine is humid, the PCB test fixture body can be dried for a long time in the dark place, the electronic components are not easy to be damaged during use, and the convenience of the drying treatment of the PCB test fixture body during the test of the printed circuit board is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1The utility model discloses a structure schematic diagram for the utility model;

[0017] Figure 2 The utility model discloses a test host computer, desiccant storage box and mesh section structure schematic diagram for the utility model;

[0018] Figure 3 The utility model discloses a structure schematic diagram for the utility model Figure 2 The utility model discloses a structure schematic diagram for the utility model

[0019] Figure 4 The utility model discloses a desiccant storage box, mesh and cover plate structure schematic diagram for the utility model;

[0020] Figure 5 The utility model discloses a desiccant storage box, inlet and cover plate local section structure schematic diagram for the utility model;

[0021] Figure 6 The utility model discloses a test base plate, air inlet channel and test host computer local section structure schematic diagram for the utility model;

[0022] In the drawing: 100, PCB test fixture main part;101, test host computer;1011, installation slot;1012, desiccant storage box;1013, locking bolt;1014, mesh;1015, internal thread groove;1016, clamping plate;1017, clamping groove;1018, inlet;1019, cover plate;1010, elastic clamping body;102, test base plate;1021, air hole;1022, air inlet pipe;1023, air inlet channel;103, stable control block;104, stable control groove;105, stand;106, air cylinder;107, press down test plate. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Please refer to Figures 1 to 6The utility model provides a technical scheme: a stable type PCB test fixture, including PCB test fixture main body 100, PCB test fixture main body 100 includes test host computer 101, the upper surface middle position department of test host computer 101 is provided with test bottom plate 102, through the bottom end contact placement surface of test host computer 101, PCB test fixture main body 100 is stably placed, the printed circuit board of needing test is placed on the surface of test bottom plate 102, the upper surface of test host computer 101 is located at the edge of test bottom plate 102 and is fixedly installed with stand 105, the top of stand 105 is fixedly installed with cylinder 106 through mounting bolt, the end of cylinder 106 is located in the inside of stand 105 and is provided with down pressure test plate 107, the inside of stand 105 both sides is provided with stable control groove 104, stable control groove 104 is provided with stable control block 103, and stable control block 103 is fixed with the end of down pressure test plate 107 through mounting bolt, cylinder 106 movement drives down pressure test plate 107 to move down, when down pressure test plate 107 moves down, stable control block 103 is in the inside stable control of stable control groove 104, thereby down pressure test plate 107 is stably controlled and moves down to the surface of test bottom plate 102 and contacts the surface of printed circuit board and tests, PCB test fixture main body 100 still is provided with:

[0025] Drying treatment mechanism, and the drying treatment mechanism includes setting at test host computer 101 both sides drying agent placement subassembly, the end of drying agent placement subassembly is provided with access subassembly, and the both sides of drying agent placement subassembly are provided with clamping installation subassembly, when PCB test fixture main body 100 is at the position of dark and humid and tests or places, when the inside of test host computer 101 is humid, it is convenient to dry the inside of test host computer 101 by drying treatment mechanism, and it is not easy to accelerate electronic component damage when using, improve the convenience of internal drying treatment of PCB test fixture main body 100 when printed circuit board test.

[0026] In order to place drying agent by drying agent placement subassembly and facilitate the internal drying treatment of test host computer 101, in the embodiment, preferably, the drying agent placement subassembly includes installation groove 1011 set at the both sides of test host computer 101, the inside of installation groove 1011 is provided with drying agent storage box 1012, the inside of drying agent storage box 1012 is filled with drying agent and is fixed in the inside of installation installation groove 1011, the inner surface of drying agent storage box 1012 is provided with mesh 1014, after drying agent storage box 1012 is fixed, the inside of test host computer 101 is treated by drying agent through mesh 1014.

[0027] In order to facilitate the injection of desiccant into the interior of the desiccant storage box 1012 through the access assembly, and facilitate the periodic replacement of the interior desiccant, in this embodiment, the access assembly preferably includes an inlet 1018 formed at the end of the mounting groove 1011, the interior of the inlet 1018 is provided with a clamping hole at both ends, the interior of the inlet 1018 is provided with a cover plate 1019, the inner surface of the cover plate 1019 is provided with an elastic clamping body 1010 at both ends, and the elastic clamping body 1010 is clamped in the clamping hole to fix and install the cover plate 1019 after placing desiccant or replacing the interior of the desiccant storage box 1012 through the inlet 1018.

[0028] In order to facilitate the clamping and installation of the desiccant storage box 1012 in the interior of the mounting groove 1011 through the clamping and installation assembly, and facilitate the clamping and installation operation, in this embodiment, the clamping and installation assembly preferably includes a clamping groove 1017 formed at both sides of the interior of the mounting groove 1011, and the desiccant storage box 1012 is integrally formed with a clamping plate 1016 at both sides, the clamping plate 1016 is clamped and connected with the interior of the clamping groove 1017, the desiccant storage box 1012 is clamped and installed on the side of the test host 101 by clamping the clamping plate 1016 in the interior of the clamping groove 1017, and the end side of the clamping plate 1016 is provided with an internal thread groove 1015, the tail end of the test host 101 is threadedly rotated with locking bolts 1013 at both sides, the end of the locking bolt 1013 is consistent with the internal structure of the internal thread groove 1015, and the locking bolt 1013 is embedded in the interior of the internal thread groove 1015 after the clamping and installation of the desiccant storage box 1012 is rotated again to reinforce and install it.

[0029] The cleaning mechanism includes a blowing and cleaning assembly arranged in the interior of the tail end of the test base plate 102, which can clean the interior of the test base plate 102 by blowing before the PCB test fixture body 100 is placed for testing the printed circuit board, so that the test base plate 102 is not easily disturbed by dust during testing to cause poor contact, and the convenience of cleaning the interior of the test base plate 102 during testing of the PCB test fixture body 100 is improved, and the test is more stable and accurate.

[0030] In order to facilitate the cleaning process of the test base plate 102 inside before placing the printed circuit board, in the embodiment, the air blowing cleaning assembly preferably comprises an air inlet channel 1023 opened at the tail end of the test base plate 102, and the inner side of the air inlet channel 1023 is equidistantly provided with air holes 1021 inside the test base plate 102. The tail end of the test base plate 102 is extended to the rear surface of the stand 105 and is provided with an air inlet pipe 1022. Before use, when the test base plate 102 is exposed to the outside and dust falls in and needs to be cleaned, the air inlet pipe 1022 is used to air into the inside of the air inlet channel 1023, and then the air holes 1021 are used to blow air into the inside of the test base plate 102, so as to facilitate the cleaning process of the inside of the test base plate 102 before testing.

[0031] The working principle and use process of the utility model: the stable PCB test fixture, in use, directly place the printed circuit board to be tested on the surface of the test base plate 102, the cylinder 106 moves to drive the lower pressing test plate 107 to move down, the lower pressing test plate 107 moves down to drive the stable control block 103 to be stably controlled inside the stable control groove 104, so as to stably control the lower pressing test plate 107 to move down to the surface of the test base plate 102 to contact the surface of the printed circuit board for testing, and the test result is displayed at the end of the test host 101.

[0032] Then when the PCB test fixture body 100 is used before testing, a proper amount of drying agent is injected into the inside of the drying agent storage box 1012 through the inlet 1018, the elastic clamping body 1010 is clamped inside the clamping hole again to close and fix the cover plate 1019 at the end of the drying agent storage box 1012, the drying agent storage box 1012 is clamped inside the mounting groove 1011 again by clamping the clamping plate 1016 inside the clamping groove 1017, until the end of the cover plate 1019 is pressed inside the mounting groove 1011 for reinforcement, and the clamping plate 1016 is clamped inside the clamping groove 1017. After clamping, the locking bolt 1013 is embedded inside the internal thread groove 1015 to fix and install the drying agent storage box 1012, so that when the PCB test fixture body 100 is operated or not used and placed in a dark place, the inside of the test host 101 is humid, the drying agent in the drying agent storage box 1012 is used to dry the inside of the test host 101 through the mesh 1014, so that the PCB test fixture body 100 can still be dried for a long time in the dark place, and the electronic components are not easily damaged during use, thereby improving the convenience of the PCB test fixture body 100 in the drying process of the printed circuit board test.

[0033] Finally when the PCB test fixture body 100 is before test use, first the end of the air inlet pipe 1022 is connected with the outside blowing equipment, after the air inlet pipe 1022 is inhaled to the inside of the air inlet channel 1023, again through the air hole 1021 to the inside of the test board 102 blowing treatment, convenient to the inside of the test board 102 clean processing before test, not easy to be interfered by dust to contact badly when test, improve the PCB test fixture body 100 when printed circuit board test to the inside of the test board 102 clean convenience, more stable and accurate test.

[0034] Although the embodiments of the present application have been shown and described in detail (see the above detailed description), 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 stable PCB test fixture, comprising a PCB test fixture body (100), the PCB test fixture body (100) comprises a test host (101), a test base plate (102) is arranged at the middle position of the upper surface of the test host (101), a stand (105) is fixedly installed at the edge of the upper surface of the test host (101) and located at the test base plate (102), a gas cylinder (106) is fixedly installed at the top end of the stand (105) through mounting bolts, a pressing test plate (107) is arranged at the end of the gas cylinder (106) and located inside the stand (105), stable control grooves (104) are formed at both sides of the inside of the stand (105), stable control blocks (103) are arranged in the stable control grooves (104), and the stable control blocks (103) are fixed with the end of the pressing test plate (107) through mounting bolts. The PCB test fixture body (100) is also provided with: The drying treatment mechanism comprises drying agent placing assemblies arranged on both sides of the test host (101), end portions of the drying agent placing assemblies are provided with access assemblies, and both sides of the drying agent placing assemblies are provided with clamping installation assemblies. The cleaning mechanism comprises a blowing cleaning assembly arranged inside the tail end of the test base plate (102).

2. The stable PCB test fixture of claim 1, wherein: The drying agent placing assembly comprises installation grooves (1011) opened on both sides of the test host (101), the drying agent placing assembly comprises drying agent storage boxes (1012) arranged in the installation grooves (1011), and the inner surfaces of the drying agent storage boxes (1012) are provided with mesh holes (1014).

3. The stable PCB test fixture of claim 2, wherein: The access assembly comprises inlets (1018) opened at the end portions of the installation grooves (1011), both ends of the inlets (1018) are provided with clamping holes, the inlets (1018) are provided with cover plates (1019) inside, and both ends of the inner surfaces of the cover plates (1019) are provided with elastic clamping bodies (1010).

4. The stable PCB test fixture of claim 3, wherein: The cover plate (1019) is matched with the internal structure of the inlet (1018), and the cover plate (1019) and the inlet (1018) are clamped and installed through the elastic clamping body (1010) and the clamping hole.

5. The stable PCB test fixture of claim 2, wherein: The clamping installation assembly comprises clamping grooves (1017) opened on both sides of the installation grooves (1011), and the drying agent storage boxes (1012) are integrally formed with clamping plates (1016) on both sides.

6. The stable PCB test fixture of claim 5, wherein: One end of the clamping plate (1016) is provided with an internal thread groove (1015), and the tail end of the test host (101) is screwed with locking bolts (1013) on both sides.

7. The stable PCB test fixture of claim 1, wherein: The blowing cleaning assembly comprises an air inlet channel (1023) opened at the tail end of the test base plate (102), air holes (1021) are equidistantly arranged on the inner side of the air inlet channel (1023) and located inside the test base plate (102), and the tail end of the test base plate (102) is extended to the rear surface of the stand (105) and is provided with an air inlet pipe (1022).

Images