CN217385717U - Drawer type test fixture - Google Patents

Abstract

The utility model aims at providing a thereby reasonable in design, can compatible manual work and automation mechanized operation, adopt replaceable form's test module to realize recycling use reduce cost's drawer type test fixture. The utility model discloses a looks articulated goes up box and lower box, the left and right sides of going up the box all is equipped with the couple, the left and right sides of box all is provided with the lower couple subassembly with last couple looks adaptation down, be provided with support plate elevating system and support plate moving mechanism in the lower box, go up the internal interchangeable anchor clamps that are equipped with of box, interchangeable anchor clamps cooperate with support plate elevating system, interchangeable anchor clamps include the faller, test module and butt joint are public, the both sides of going up the box are all arranged and are provided with a plurality of auxiliary pulley, it sets up on two rows of auxiliary pulleys to go up the faller, the inboard of going up the box is provided with and docks public first matched with butt joint female head, the change mouth with last faller looks adaptation is seted up to one side of going up the box. The utility model discloses be applied to the technical field of PCB board test.

Description

Drawer type test fixture

Technical Field

The utility model relates to a technical field of PCB board test, in particular to drawer type test fixture.

Background

With the function of the electronic product becoming more and more complex, the testing work of the electronic product becomes more and more cumbersome. Generally, the functions of electronic products need to be connected through the PCB, so the quality of the PCB is very important to the electronic products. The functional test is one of very important links in the production process of electronic products, and functional defects such as open circuit, short circuit and the like which are difficult to find visually can be found through detection. When a functional test is performed, a probe module is generally used to perform contact conduction on each test point of a PCB, thereby implementing the test.

Patent CN208953562U discloses a drawer-type automatic test fixture, which comprises an upper-layer box body and a lower-layer box body, wherein the upper-layer box body is provided with upper hooks which are symmetrical left and right, and the lower-layer box body is provided with a lower hook assembly, a support plate lifting mechanism, a limiting column assembly and first horizontal moving devices which are symmetrically arranged at the left side and the right side of a support plate in the support plate lifting mechanism; the wire winding machine meets the requirements of different wire bodies, improves the universality of equipment, reduces the cost, can realize automatic operation, and improves the working efficiency. However, when the above-mentioned patent is used, it can only adapt to a single product, and can not adapt to multiple products, and the adaptability is poor, and after the product is updated, a new whole test fixture needs to be newly made, so that the production cost is increased, and the economic benefit is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that overcome prior art not enough, thereby provide a reasonable in design, can compatible manual work and automation mechanized operation, adopt replaceable form's test module to realize recycling use reduce cost's drawer type test fixture.

The utility model adopts the technical proposal that: the utility model comprises an upper box body and a lower box body which are hinged with each other, wherein the left side and the right side of the upper box body are both provided with an upper hook, the left side and the right side of the lower box body are both provided with lower hook components matched with the upper hooks, a support plate lifting mechanism and a support plate moving mechanism are arranged in the lower box body, the carrier plate lifting mechanism is positioned below the carrier plate moving mechanism, the upper box body is internally provided with a replaceable clamp, the replaceable fixture is matched with the support plate lifting mechanism, the replaceable fixture comprises an upper needle plate, and a test module and a butt joint male joint which are both arranged on the upper needle plate, a plurality of auxiliary pulleys are arranged on both sides of the upper box body, the upper needle plate is arranged on the two rows of auxiliary pulleys, the inner side of the upper box body is provided with a butt joint female head matched with the butt joint male head, and one side of the upper box body is provided with a replacement opening matched with the upper needle plate.

Further, the support plate moving mechanism is in including the symmetry two support frames in the lower box, two be provided with the slide rail on the support frame, two it places the frame to slide to be provided with the support plate on the slide rail, the support plate is placed the frame and is gone up the activity and be provided with the product support plate, one of them be provided with first gas pole on the support frame, the output of first gas pole with the frame is placed to the support plate and is connected, one side of lower box set up with the frame looks adaptation's access & exit is placed to the support plate.

Further, support plate elevating system is including driving actuating cylinder, connecting plate, lifter plate and two guide rails, two the guide rail level sets up in the nowel, the connecting plate slides and sets up two on the guide rail, it sets up to drive actuating cylinder in the nowel and the output with the connecting plate is connected, be provided with a plurality of lift guide pin bushing in the nowel, the lifter plate through a plurality of with the lift guide shaft activity of lift guide pin bushing looks adaptation sets up on the lift guide pin bushing, the lower extreme of lifter plate is provided with a plurality of extension boards, be provided with rolling bearing on the extension board, be provided with a plurality of fin boards on the connecting plate, the inclined plane of fin board with rolling bearing cooperatees.

Furthermore, the inclined plane of the fin plate is divided into three sections, and the joints of the three sections of inclined planes are in arc transition.

Furthermore, one side of the guide rail is provided with an in-place sensor, and the connecting plate is provided with an in-place induction sheet matched with the in-place sensor.

Furthermore, a positioning cylinder is vertically arranged on one side of the driving cylinder, a positioning bolt is arranged at the output end of the positioning cylinder, and the positioning bolt is matched with a positioning pin hole formed in the lifting plate and the product carrier plate.

Furthermore, a plurality of positioning guide sleeves are arranged on the product carrier plate, and a plurality of positioning guide shafts matched with the plurality of positioning guide sleeves are arranged at the lower end of the upper needle plate.

Further, the left side and the right side of the upper end of the carrier plate placing frame are provided with a plurality of guide bearings in rows, the product carrier plates are positioned between the two rows of guide bearings, and the inner ends of the carrier plate placing frame are provided with limiting blocks matched with the product carrier plates.

Furthermore, be provided with two spacing long boards in the last box, two spacing long board is located two rows respectively the top of auxiliary pulley, go up the needle board and be in spacing long board with between the auxiliary pulley, be provided with fixed bolt on the spacing long board, the lower extreme of fixed bolt passes spacing long board and with set up fixed pin hole looks adaptation on the last needle board.

Furthermore, an auxiliary handle is arranged at the front end of the upper needle plate.

The utility model has the advantages that: the utility model adopts a replaceable fixture in the upper box body to be matched with the support plate lifting mechanism, thereby testing the product jacked up by the support plate lifting mechanism; the interchangeable anchor clamps include faller, test module and butt joint public head, and test module is used for conducting the test with the product contact, thereby butt joint public head makes test module can realize electrical connection with the butt joint female head butt joint, changes and takes out or send into when mouthful being used for changing interchangeable anchor clamps. As can be seen from the above, the utility model has the advantages of reasonable design, can manual operation also can with the cooperation operation of automation equipment when using, compatible manual work and two kinds of modes of automation mechanized operation adopt the test module of interchangeable form, have realized overall structure recycling to manufacturing cost has been reduced, economic benefits is better.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic perspective view of another angle of the present invention;

FIG. 3 is a schematic perspective view of the present invention when opened;

FIG. 4 is an enlarged view of portion A of FIG. 3;

fig. 5 is a schematic perspective view of the upper case of the present invention with the top plate removed;

fig. 6 is a schematic perspective view of the carrier plate moving mechanism of the present invention;

fig. 7 is a schematic perspective view of the carrier plate lifting mechanism of the present invention;

fig. 8 is a schematic perspective view of the support plate lifting mechanism of the present invention.

Detailed Description

As shown in fig. 1 to 8, in this embodiment, the present invention comprises an upper case 1 and a lower case 2 hinged to each other, wherein upper hooks are provided on both sides of the upper case 1, lower hook assemblies adapted to the upper hooks are provided on both sides of the lower case 2, a carrier plate lifting mechanism 3 and a carrier plate moving mechanism 4 are provided in the lower case 2, the carrier plate lifting mechanism 3 is located below the carrier plate moving mechanism 4, an exchangeable fixture 5 is provided in the upper case 1, the exchangeable fixture 5 is matched with the carrier plate lifting mechanism 3, the exchangeable fixture 5 comprises an upper needle plate 51, a test module 52 and a butt joint male 53 both provided on the upper needle plate 51, a plurality of auxiliary pulleys 6 are arranged on both sides of the upper case 1, the upper needle plate 51 is provided on two rows of the auxiliary pulleys 6, a butt joint female 7 matched with the butt joint male 53 is provided on the inner side of the upper case 1, one side of the upper box body 1 is provided with a replacing opening 8 matched with the upper needle plate 51.

In the above, the upper box body 1 and the lower box body 2 are connected in a hinged manner, so that the upper box body 1 and the lower box body 2 can be opened relatively to install components and maintain, and the upper box body 1 and the lower box body 2 can be locked by matching the upper hook and the lower hook component, so that the stability of the whole structure is ensured during use, and the smooth performance of test work is ensured; the support plate lifting assembly is used for driving a product to move up and down so as to realize the conduction of the product and the test module 52 and further realize the function test, the support plate moving mechanism 4 is used for driving the product to move back and forth so as to enable a worker or a mechanical hand to put in or take out the product, and the support plate lifting mechanism 3 is positioned below the support plate moving mechanism 4 and can smoothly jack up the product placed on the support plate moving mechanism 4 so as to carry out the test; the replaceable clamp 5 is arranged in the upper box body 1 and above the carrier plate lifting mechanism 3, so that the replaceable clamp is in contact with a product jacked up by the carrier plate lifting mechanism 3 during testing to realize conduction; the replaceable fixture 5 comprises an upper needle plate 51, a test module 52 and a butt joint male head 53, wherein the upper needle plate 51 is used for installing the test module 52 and the butt joint male head 53, the test module 52 is fixed on the upper needle plate 51, a probe of the test module 52 passes through the upper needle plate 51, the butt joint male head 53 is arranged at the inner end of the upper needle plate 51, the butt joint male head 53 is integrated with various plug-in connectors and is connected with various electric parts of the test module 52, the butt joint female head 7 is arranged at the inner end in the upper box body 1, the butt joint female head 7 is integrated with various plug-in ports and is matched with the butt joint male head 53, so that the plug-in communication can be realized, the test can be ensured, the compactness of the whole structure of the utility model can be realized through the matching of the butt joint male head 53 and the butt joint female head 7, the wiring and the maintenance is more convenient, in addition, a plurality of auxiliary pulleys 6 are arranged on the left side surface and the right side surface in the upper box body 1, the auxiliary pulleys 6 on the same side surface are horizontally arranged and connected into a row, the upper needle plate 51 is erected on the two rows of auxiliary pulleys 6 and can be conveniently pushed in and pulled out through the rolling effect of the auxiliary pulleys 6, and the replacement port 8 is formed in the front end of the upper box body 1 and used for the inlet and outlet of the upper needle plate 51, so that replacement is realized; when a product is replaced, the replaceable fixture 5 is pulled out of the upper box body 1, then a new replaceable fixture 5 is fed, and other parts can be recycled, so that the test work can be normally carried out. Therefore, by the aforesaid, the utility model discloses overall structure reasonable in design can manual operation also can with the automation equipment cooperation operation when using, compatible manual work and automation mechanized operation two kinds of modes adopt interchangeable form's test module 52, have realized overall structure recycling to manufacturing cost has been reduced, economic benefits is better.

In this embodiment, the carrier moving mechanism 4 includes two support frames 41, two that are symmetrically disposed in the lower box 2, a slide rail 42 is disposed on each support frame 41, two a carrier placing frame 43 is slidably disposed on each slide rail 42, a product carrier 44 is movably disposed on each carrier placing frame 43, a first air rod 45 is disposed on each support frame 41, an output end of the first air rod 45 is connected to the carrier placing frame 43, and an entrance 46 adapted to the carrier placing frame 43 is disposed on one side of the lower box 2. The two support frames 41 are respectively arranged at the left side and the right side in the lower box body 2, the two slide rails 42 are respectively arranged on the two support frames 41, the lower ends of the two sides of the support plate placing frame 43 are provided with slide blocks matched with the slide rails 42 so as to be matched with the slide rails 42 in a sliding manner, the product support plate 44 is arranged on the support plate placing frame 43 so as to move along with the movement of the support plate placing frame 43, the product support plate 44 is provided with a product groove matched with a product for positioning and placing the product, the first air cylinder is used for driving the support plate placing frame 43 to move back and forth so as to drive the support plate placing frame 43 to be sent out of the lower box body 2 or be brought into the lower box body 2, so that the product is loaded and unloaded, and the product support plate 44 is movably placed on the support plate placing frame 43, so that the product 44 can be driven to ascend or descend together with the product when the carrier plate lifting mechanism 3 is driven, thereby realizing functional testing.

In this embodiment, the carrier plate lifting mechanism 3 includes a driving cylinder 31, a connecting plate 32, a lifting plate 33 and two guide rails 34, two guide rails 34 are horizontally disposed in the lower box 2, the connecting plate 32 is slidably disposed on two guide rails 34, the driving cylinder 31 is disposed in the lower box 2, an output end of the driving cylinder is connected to the connecting plate 32, a plurality of lifting guide sleeves 35 are disposed in the lower box 2, the lifting plate 33 is movably disposed on the lifting guide sleeves 35 through a plurality of lifting guide shafts 36 adapted to the lifting guide sleeves 35, a plurality of extending plates 37 are disposed at a lower end of the lifting plate 33, rotating bearings 38 are disposed on the extending plates 37, a plurality of fin plates 39 are disposed on the connecting plate 32, and inclined planes of the fin plates 39 are matched with the rotating bearings 38. The connecting plate 32 is in sliding fit with the two guide rails 34 so as to move back and forth in the lower box body 2, the driving cylinder 31 is used for driving the connecting plate 32 to move, the lifting plate 33 is vertically and movably arranged above the connecting plate 32 through the four lifting guide shafts 36 and the four lifting guide sleeves 35, two extending plates 37 are arranged on two sides of the lower end of the lifting plate 33, rotating bearings 38 are arranged on inner sides of the lower ends of the four extending plates 37, two fin plates 39 are arranged on two sides of the connecting plate 32, the four fin plates 39 are respectively positioned below the four extending plates 37 and are opposite to the rotating bearings 38, the fin plates 39 are provided with inclined planes, and the rotating bearings 38 are matched with the inclined planes; therefore, when the driving cylinder 31 is driven forward, the connecting plate 32 moves forward, the fin 39 also moves forward, and the inclined surface of the fin 39 guides the rotating bearing 38 when moving forward, so that the rotating bearing 38 rotates and forces the rotating bearing 38 to rotate along the inclined surface of the fin 39, thereby moving the lifting plate 33 upward and lifting the product carrier plate 44. Therefore, the structure can save the occupation of the structure in the longitudinal space, and the whole structure is more compact.

In this embodiment, the inclined surface of the fin plate 39 is divided into three sections, and the joints between the three sections of inclined surfaces are all in arc transition. The inclined planes on the fish fin plate 39 are three in number, the inclination gradually decreases according to the sequence from bottom to top, and the connection between the inclined planes at two ends adopts circular arc transition, so that the rotating bearing 38 can be more smoothly and stably attached and moved, the phenomenon that the lifting plate 33 jumps or shakes due to the existing inclined plane and plane structure can be avoided, noise or abnormal sound is reduced, and the service life of the component can be prolonged.

In this embodiment, one side of the guide rail 34 is provided with an in-place sensor 310, and the connecting plate 32 is provided with an in-place sensing piece 311 matched with the in-place sensor 310. The in-place sensor 310 is matched with the in-place sensing piece 311 to sense the forward movement distance of the connecting plate 32, so as to judge whether the lifting plate 33 is lifted in place or not, and to control the driving cylinder 31 and other related components.

In this embodiment, a positioning cylinder 312 is vertically disposed at one side of the driving cylinder 31, and a positioning pin 313 is disposed at an output end of the positioning cylinder 312, wherein the positioning pin 313 is adapted to a positioning pin hole disposed on the lifting plate 33 and the product carrier plate 44. The positioning cylinder 312 is used to drive the positioning pin 313 to move up and down, so as to be inserted into the positioning pin holes on the lifting plate 33 and the product carrier plate 44 to position and fix the product carrier plate 44, so that the product carrier plate 44 can be firmly fixed before being jacked up, which is beneficial to alignment.

In this embodiment, the product carrier plate 44 is provided with a plurality of positioning guide sleeves 47, and the lower end of the upper needle plate 51 is provided with a plurality of positioning guide shafts 54 adapted to the plurality of positioning guide sleeves 47. The product carrier plate 44 and the test carrier plate are aligned by three positioning guide sleeves 47 and three positioning guide shafts 54, so that the probes of the test module 52 can be ensured to contact with the contacts of the product on the product carrier plate 44, and conduction is realized, thereby performing testing.

In this embodiment, the left and right sides of the upper end of the carrier placing frame 43 are all provided with a plurality of guide bearings 48 in rows, the product carrier 44 is located between the two rows of guide bearings 48, and the inner end of the carrier placing frame 43 is provided with a limiting block 49 matched with the product carrier 44. When the product carrier plate 44 is placed, two rows of the guide bearings 48 are right the product carrier plate 44 plays a limiting role, and simultaneously, the guide bearings 48 can rotate, so that the product carrier plate 44 is placed only by putting the front end of the product carrier plate 44 at the front end of the carrier plate placing frame 43, and then the product carrier plate is directly pushed after being aligned with the front end of the product carrier plate 44, and the product carrier plate 44 is directly pulled out, so that the product carrier plate 44 is quite convenient to push in, and the limit blocks 49 are right the product carrier plate 44 is limited and positioned, so that the product carrier plate 44 is pushed to a proper position.

In this embodiment, be provided with two spacing long boards 9 in the last box 1, two spacing long boards 9 are located two rows respectively auxiliary pulley 6's top, go up faller 51 and be in spacing long board 9 with between the auxiliary pulley 6, be provided with fixing bolt 10 on the spacing long board 9, the lower extreme of fixing bolt 10 passes spacing long board 9 and with set up fixed pin hole looks adaptation on the last faller 51. The long limiting plate 9 and the auxiliary pulley 6 are matched to limit the upper needle plate 51, so that the upper needle plate 51 can be limited at a proper position, and the fixing bolt 10 is used for fixing the upper needle plate 51, so that the upper needle plate 51 after being placed can be kept at a set position, and a test is performed.

In this embodiment, the front end of the upper needle plate 51 is provided with an auxiliary handle 55. The auxiliary handle 55 is arranged at the front end of the upper needle plate 51, so that an armrest is provided for an operator, the operator can conveniently pull out the upper needle plate 51 from the upper box 1 or push the upper needle plate 51 into the upper box 1 during use, and the operator can conveniently work.

The utility model discloses a theory of operation is: the first air rod 45 is driven, the carrier plate placing frame 43 drives the product carrier plate 44 to extend out of the entrance 46, after a worker places a product through a manipulator, the first air rod 45 is reset, the product is sent into the lower box body 2, then the positioning cylinder 312 is driven to enable the positioning bolt 313 to fix the product carrier plate 44, and the loading work is completed; the driving cylinder 31 drives, the connecting plate 32 drives the fin plate 39 to move, the extending plate 37 is jacked upwards under the action of the rotating bearing 38 and the inclined plane of the fin plate 39, the jacking plate jacks upwards, so that the product carrier plate 44 is communicated with products to jack up, in the jacking process, the positioning guide sleeve 47 on the product carrier plate 44 is matched with the positioning guide shaft 54 of the upper needle plate 51 to realize alignment, and therefore the contact conduction of a probe of the testing module 52 and the products is ensured, and the testing is carried out.

While the embodiments of the present invention have been described in terms of practical embodiments, they are not intended to limit the scope of the invention, and modifications of the embodiments and combinations with other embodiments will be apparent to those skilled in the art in light of the present description.

Claims (10)

1. The utility model provides a drawer type test fixture, includes looks articulated last box (1) and lower box (2), the left and right sides of going up box (1) all is equipped with the couple, the left and right sides of box (2) all be provided with down with the lower couple subassembly of last couple looks adaptation down, be provided with support plate elevating system (3) and support plate moving mechanism (4) down in box (2), support plate elevating system (3) are in the below of support plate moving mechanism (4), its characterized in that: go up be equipped with in box (1) interchangeable anchor clamps (5), interchangeable anchor clamps (5) with support plate elevating system (3) cooperate, interchangeable anchor clamps (5) include faller (51) and all set up go up test module (52) and butt joint public head (53) on faller (51), the both sides of going up box (1) are all arranged and are provided with a plurality of auxiliary pulley (6), it sets up two rows to go up faller (51) on auxiliary pulley (6), the inboard of going up box (1) be provided with butt joint public head (53) matched with butt joint female head (7), go up one side of box (1 seted up with change mouth (8) of going up faller (51) looks adaptation.

2. The drawer-type test fixture of claim 1, wherein: support plate moving mechanism (4) set up including the symmetry two support frame (41) in box (2) down, two be provided with slide rail (42) on support frame (41), two slide rail (42) are gone up to slide and are provided with the support plate and place frame (43), the support plate is placed the activity on frame (43) and is provided with product support plate (44), one of them be provided with first gas pole (45) on support frame (41), the output of first gas pole (45) with frame (43) are placed to the support plate and are connected, down one side of box (2) seted up with frame (43) looks adaptation's access & exit (46) are placed to the support plate.

3. The drawer-type test fixture of claim 2, wherein: the carrier plate lifting mechanism (3) comprises a driving cylinder (31), a connecting plate (32), a lifting plate (33) and two guide rails (34), the two guide rails (34) are horizontally arranged in the lower box body (2), the connecting plate (32) is arranged on the two guide rails (34) in a sliding manner, the driving cylinder (31) is arranged in the lower box body (2), the output end of the driving cylinder is connected with the connecting plate (32), a plurality of lifting guide sleeves (35) are arranged in the lower box body (2), the lifting plate (33) is movably arranged on the lifting guide sleeves (35) through a plurality of lifting guide shafts (36) matched with the lifting guide sleeves (35), a plurality of extending plates (37) are arranged at the lower end of the lifting plate (33), a rotating bearing (38) is arranged on the extending plates (37), a plurality of fin plates (39) are arranged on the connecting plate (32), the inclined surface of the fin plate (39) is matched with the rotating bearing (38).

4. The drawer-type test fixture of claim 3, wherein: the inclined plane of the fin plate (39) is divided into three sections, and the joints of the three sections of inclined planes are in arc transition.

5. The drawer-type test fixture of claim 3, wherein: an in-place sensor (310) is arranged on one side of the guide rail (34), and an in-place sensing piece (311) matched with the in-place sensor (310) is arranged on the connecting plate (32).

6. The drawer-type test fixture of claim 3, wherein: one side of the driving cylinder (31) is vertically provided with a positioning cylinder (312), the output end of the positioning cylinder (312) is provided with a positioning bolt (313), and the positioning bolt (313) is matched with a positioning pin hole formed in the lifting plate (33) and the product carrier plate (44).

7. The drawer-type test fixture of claim 2, wherein: the product carrier plate (44) is provided with a plurality of positioning guide sleeves (47), and the lower end of the upper needle plate (51) is provided with a plurality of positioning guide shafts (54) matched with the plurality of positioning guide sleeves (47).

8. The drawer-type test fixture of claim 2, wherein: the upper end left and right sides that frame (43) was placed to the support plate all is provided with a plurality of guide bearing (48) in a row, product support plate (44) are located two rows between guide bearing (48), the inner end that frame (43) was placed to the support plate be provided with product support plate (44) matched with stopper (49).

9. The drawer-type test fixture of claim 1, wherein: go up and be provided with two spacing long boards (9) in box (1), two spacing long board (9) are located two rows respectively the top of auxiliary pulley (6), it is in to go up faller (51) spacing long board (9) with between auxiliary pulley (6), be provided with fixing bolt (10) on spacing long board (9), the lower extreme of fixing bolt (10) passes spacing long board (9) and with set up last fixed pin hole looks adaptation on faller (51).

10. The drawer-type test fixture of claim 1, wherein: an auxiliary handle (55) is arranged at the front end of the upper needle plate (51).

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