CN108072774B

CN108072774B - Automatic detection pressing device for PCBA board test

Info

Publication number: CN108072774B
Application number: CN201710970083.0A
Authority: CN
Inventors: 罗鹏; 梁强; 钟飞飞
Original assignee: Suzhou Qiuyeyi Machinery Co ltd
Current assignee: Suzhou Qiuyeyi Machinery Co ltd
Priority date: 2017-10-18
Filing date: 2017-10-18
Publication date: 2020-11-20
Anticipated expiration: 2037-10-18
Also published as: CN108072774A

Abstract

The automatic detection and pressing device for the PCBA (printed Circuit Board Assembly) Board test mainly comprises the following components: the automatic test device comprises a driving device, driving device fixing seats on two sides, a memory bank, DIMM slots and toggle switches which are positioned at two ends of the DIMM slots and can partially rotate with the bottoms of the two ends of the DIMM slots, wherein the driving device comprises a middle main driving device and side push driving devices on two sides, the two sides of the automatic test pressing device are provided with DIMM slot buckling fixing frames, the main driving device is used for pushing the memory bank to lift, the side push driving devices are used for operating the DIMM slot buckling fixing frames to operate and further controlling the automatic locking and opening operations of the toggle switches, the manual operation of the toggle switches is not needed, the machine test is more convenient, the manual output in the manual adjustment process is saved, the automatic operation of the machine operation is reflected, and the labor cost of enterprises is also saved.

Description

Automatic detection pressing device for PCBA board test

Technical Field

The invention relates to the field of printed circuit board testing, in particular to an automatic detection pressing device for PCBA board testing.

Background

Pcb (printed Circuit board), which is called printed Circuit board in chinese, is an important electronic component, is a support for electronic components, and is a carrier for electrical connection of electronic components. The pcba (printed Circuit Board assembly) is a printed Circuit Board assembly Board formed by mounting a component on a PCB Board by SMT (Surface Mount Technology) and then performing DIP-mounting.

After the PCBA board is installed, performance testing is required to be carried out to ensure the use performance of the PCBA board. According to the needs of PCBA board test board, drive arrangement need assemble into the module: the memory module is called a memory module, in which the driving device is fixed by the driving device fixing seat and the memory bank is fixed below the driving device. Then the test carrier plate is inserted into the DIMM slot and is inserted onto the test carrier plate through the DIMM slot, thereby completing a series of test actions. The traditional memory module is fixed by manually pulling up the toggle switch, and because the drive device pushes down to finish the rising process, the toggle switch can naturally bounce, and when the drive device pushes down again, the support plate can be pulled out again to pull up the toggle switch to fix the memory module. Repeated manual fixation consumes too much manpower, and repeated taking out of the support plate easily causes plate fatigue.

Aiming at the technical problem, the invention provides an automatic detection pressing device for PCBA board test, which mainly comprises the following components: the automatic test device comprises a driving device, driving device fixing seats on two sides, a memory bank, DIMM slots and toggle switches which are positioned at two ends of the DIMM slots and can partially rotate with the bottoms of the two ends of the DIMM slots, wherein the driving device comprises a middle main driving device and side push driving devices on two sides, the two sides of the automatic test pressing device are provided with DIMM slot buckling fixing frames, the main driving device is used for pushing the memory bank to lift, the side push driving devices are used for operating the DIMM slot buckling fixing frames to operate and further controlling the automatic locking and opening operations of the toggle switches, the manual operation of the toggle switches is not needed, the machine test is more convenient, the manual output in the manual adjustment process is saved, the automatic operation of the machine operation is reflected, and the labor cost of enterprises is also saved.

Disclosure of Invention

Automatic detection pushes down device for PCBA board test, and the essential element includes: the testing device comprises a driving device 1, driving device fixing seats 2 at two sides, a memory bank 3, DIMM slots 4 and toggle switches 5 which are positioned at two ends of the DIMM slots 4 and can partially rotate with the bottoms of the two ends of the DIMM slots 4, wherein after the memory bank 3 is inserted into the DIMM slots 4 downwards, the toggle switches 5 at two sides rotate and are buckled in buckle grooves in the memory bank 3 to tightly buckle and fix the memory bank 3 positioned in the DIMM slots 4, so that the normal program action of the PCBA board test is ensured; the double-DIMM groove buckling fixing frames are respectively arranged on two sides of the automatic detection pressing device, the driving device 1 comprises a main driving device and side pushing driving devices positioned on two sides of the main driving device, and the main driving device is used for pressing and pushing the memory bank 3; the double-memory-card-slot-buckle-fixing frame is characterized in that a power output end of a side-push driving device is contacted with the position right above the double-memory-card-slot-buckle-fixing frame, the position right below the double-memory-card-buckle-fixing frame is positioned above a toggle switch 5, after a driving device 1 is started, the side-push driving device and a main driving device synchronously press down and drive a memory bank 3 and double-memory-card-slot-buckle-fixing frame structures on two sides to move downwards together, and when the memory bank 3 moves downwards, the double-memory-card-slot-buckle-fixing frames on two sides move downwards and contact the toggle switch 5, so that the toggle switch 5 completes locking or poking away from the memory bank 3.

Preferably, the PCBA board test automatic detection pressing device comprises a DIMM groove buckling and fixing frame, a DIMM shifting block 61, a DIMM bracket 62 and a DIMM contact 63 are sequentially arranged from top to bottom, wherein the upper end face of the DIMM shifting block 61 is contacted with the power output end of the side push driving device; the upper end of the DIMM bracket 62 is provided with a sliding groove 621, the lower end part of the DIMM dial block 61 is fixed in the sliding groove 621 of the DIMM bracket 62 by a screw and nut component, and the lower end part of the DIMM bracket 62 is arranged in a receiving groove 631 of the DIMM contact 63 and is locked by a screw; the side surface of the DIMM contact 63 far away from the DIMM slot 4 is an inner inclined surface, one side of the upper end surface of the toggle switch 5 near the DIMM slot 4 is provided with a groove 51 extending inwards, one side of the upper end surface of the DIMM contact 5 far away from the DIMM slot 4 is provided with a step surface 52 increasing step by step, the integral gradient of the step surface 52 is the same as the gradient of the inner inclined surface in the DIMM contact 63, and when the DIMM contact 63 presses the upper end surface of the toggle switch 5 downwards and the toggle switch 5 is in a locking state, the inner inclined surface of the DIMM contact 63 is ensured to be tightly attached to the step surface 52 on the upper.

Preferably, the automatic detection pressing device for the PCBA board test further comprises fixing plates 7 on the front side and the rear side, the fixing plates 7 are fixed on the front side and the rear side of the driving device fixing seat, and the bolt and nut assemblies are inserted into holes in the DIMM shifting block 61 and vertical waist-shaped holes 71 in the front fixing plate 7 and the rear fixing plate 7 in a penetrating manner, so that the shifting block 61 can vertically move up and down in the vertical waist-shaped holes 71 in the fixing plates 7; the bolt and nut assembly is inserted into the holes at the upper end of the DIMM bracket 62 and the inclined waist-shaped holes 72 in the front and rear fixing plates 7, so that the DIMM bracket 62 connected with the DIMM dial block 61 through the sliding groove 621 can vertically move up and down on the dial block 61, and simultaneously allows the DIMM bracket 62 to perform inclined movement in the inclined waist-shaped holes 72, namely the DIMM bracket 62 can perform inclined lifting movement after rotating a certain angle around a connecting screw rod in the sliding groove 621 in the lifting and descending processes, and the DIMM contact 63 can incline along with the inclination of the DIMM bracket 62, thereby realizing the locking and opening actions of the toggle switch 5.

Preferably, the automatic detection pressing device for the PCBA board test is characterized in that the upper end and the lower end of the sliding groove 621 at the upper end of the DIMM support 62 are vertical sliding grooves, the middle part of the sliding groove 621, where the two ends are connected to each other, is a bending sliding groove with a certain bending angle, where the bending sliding groove includes a first bending sliding groove 6211 and a second bending sliding groove 6212, and the bending direction of the bending sliding groove in the DIMM groove fastening fixing frames at the two sides points to the DIMM groove fastening fixing frame at the opposite side.

When the driving device 1 performs a vertical downward pressing action, the DIMM stirring block 61 also performs a vertical linear motion in the sliding groove 621, and in the sliding process of the first bending sliding groove 6211 and the second bending sliding groove 6212, the DIMM support 62 and the DIMM contact 63 both perform a downward inclined motion together, wherein the inclined direction of the DIMM support 62 and the DIMM contact 63 is opposite to the bending direction of the bending sliding groove, so that the DIMM contact 63 performs an outward inclined downward motion when being pressed downward close to the toggle switch 5, the toggle switch 5 locked at the upper end of the DIMM slot 4 is stirred away (when the memory stick 3 is not inserted, the toggle switch 5 is locked in the DIMM slot 4, the groove 51 at the upper end face extends into the DIMM slot 4 for a distance, and the memory stick 3 at the upper end can be normally inserted into the DIMM slot 4 only by stirring away the toggle switch 5), and the toggle switch 5 is completely stirred away; when the DIMM stirring block 61 moves into the second bending slide 6212, the DIMM support 62 and the DIMM contact 63 make a downward tilting movement toward the inner side together, and the DIMM contact 63 moves transversely to the inner side end face of the toggle switch 5; the DIMM shifting block 61 then vertically descends in the vertical sliding slot at the lower end to force the upper end of the toggle switch 5 to perform a turning motion toward the DIMM slot 4, meanwhile, the memory bank 3 still vertically moves downwards, at a certain time point of cooperative operation, the extension groove 51 at the inner side of the toggle switch 5 is just buckled in the buckling groove at the side edge of the memory bank 3, and after the two are completely buckled, the memory bank 3 has descended to the correct position and is tightly locked at the correct position under the buckling action of the toggle switch 5. After the detection is finished, the driving device 1 is lifted, the running tracks of related parts are opposite, and the toggle switch 5 can automatically perform the actions of dialing off and locking under the action of the DIMM groove locking fixing frames on the two sides.

Preferably, the automatic detection and pressing device for testing the PCBA board is characterized in that the bottom end face of the inner inclined plane at the lower end of the DIMM contact 63 is provided with an upward inclined touch prevention table 632 in the opposite direction, and the boundary edge between the inclined plane and the upward inclined touch prevention table 632 is provided with a chamfer. The tilt-up anti-touch block 632 is used to prevent the DIMM contact 63 from colliding with the upper end surface of the toggle switch 5 during the tilt lifting process to cause the relative collision force between the toggle switch 5 and the DIMM slot buckle fixing frame to damage the two structures, thereby shortening the service life of the equipment.

Preferably, in the automatic detection press-down device for PCBA board testing, a guide post hole 611 is formed in a position of the DIMM stirring block 61 corresponding to the output shaft of the side push driving device, wherein the side push driving device is inserted into the guide post hole 611 in the press-down process of the output shaft of the side push driving device. The guide post hole 611 plays a role in guiding the whole pressing process of the driving device 1, and the phenomenon that the driving device 1 is transversely deviated when operated in the long-term use process to influence the smooth test of the PCBA board is avoided.

Description of the drawings:

the embodiments are further described with reference to the accompanying drawings, in which:

FIG. 1 is a schematic structural view of an automatic press-down detecting device for PCBA board testing according to the present invention (the fixing plate is not shown);

FIG. 2 is a schematic structural diagram of a toggle switch in the automatic detection press-down device according to the present invention;

FIG. 3 is a schematic view of the configuration of the sliding slot in the DIMM slot fastening rack on both sides of the automatic detection hold-down device according to the present invention;

FIG. 4 is a schematic diagram of a DIMM contact in a DIMM slot snap fixture in an automatic detection hold-down device in accordance with the present invention;

FIG. 5 is a schematic structural diagram of a fixing plate of the automatic detecting and pressing device according to the present invention;

FIG. 6 is a schematic diagram of the configuration of the DIMM paddle in the auto detect hold down device of the present invention;

description of main structural sequence numbers

The following detailed description will further illustrate the invention in conjunction with the above-described figures.

Detailed Description

Specific embodiment example 1:

The DIMM groove clamping and fixing frame sequentially comprises a DIMM shifting block 61, a DIMM bracket 62 and a DIMM contact 63 from top to bottom, wherein the upper end face of the DIMM shifting block 61 is contacted with the power output end of the side push driving device; the upper end of the DIMM bracket 62 is provided with a sliding groove 621, the lower end part of the DIMM dial block 61 is fixed in the sliding groove 621 of the DIMM bracket 62 by a screw and nut component, and the lower end part of the DIMM bracket 62 is arranged in a receiving groove 631 of the DIMM contact 63 and is locked by a screw; the side surface of the DIMM contact 63 far away from the DIMM slot 4 is an inner inclined surface, one side of the upper end surface of the toggle switch 5 near the DIMM slot 4 is provided with a groove 51 extending inwards, one side far away from the DIMM slot 4 is provided with a step surface 52 increasing step by step, the integral gradient of the step surface 52 is the same as the gradient of the inner inclined surface in the DIMM contact 63, and when the DIMM contact 63 presses the upper end surface of the toggle switch 5 downwards and the toggle switch 5 is in a locking state, the inner inclined surface of the DIMM contact 63 is ensured to be tightly attached to the step surface 52 on the upper end surface of the toggle switch 5; the automatic detection pressing device also comprises fixing plates 7 at the front side and the rear side, the fixing plates 7 are fixed on the front side and the rear side of a driving device fixing seat, and bolt and nut assemblies are inserted into holes in the DIMM shifting block 61 and vertical waist-shaped holes 71 in the front fixing plate and the rear fixing plate 7 in a penetrating manner, so that the shifting block 61 can vertically move up and down in the vertical waist-shaped holes 71 in the fixing plates 7; the bolt and nut assembly is inserted into the holes at the upper end of the DIMM bracket 62 and the inclined waist-shaped holes 72 in the front and rear fixing plates 7, so that the DIMM bracket 62 connected with the DIMM shifting block 61 through the sliding groove 621 can vertically move up and down while the shifting block 61 allows the DIMM bracket 62 to obliquely move in the inclined waist-shaped holes 72, namely the DIMM bracket 62 can obliquely move up and down after rotating a certain angle around a connecting screw rod in the sliding groove 621 in the process of ascending and descending, and the DIMM contact 63 can be inclined along with the inclination of the DIMM bracket 62, thereby realizing the locking and opening actions of the toggle switch 5; the upper end and the lower end of the sliding groove 621 at the upper end of the DIMM bracket 62 are vertical sliding grooves, the middle part of the upper end of the DIMM bracket 62, which is connected with the vertical sliding grooves, is a bending sliding groove with a certain bending angle, wherein the bending sliding groove comprises a first bending sliding groove 6211 and a second bending sliding groove 6212, and the bending directions of the bending sliding grooves in the DIMM groove fastening and fixing frames at the two sides point to the DIMM groove fastening and fixing frame at the opposite side; the bottom end face of the inner inclined plane at the lower end of the DIMM contact 63 is provided with an upward inclined anti-touch platform 632 in the opposite direction, and the boundary edge between the inclined plane and the upward inclined anti-touch platform 632 is provided with a chamfer; the function of the upward-inclined anti-touch table 632 is to prevent the DIMM contact 63 from colliding with the upper end surface of the toggle switch 5 in the inclined lifting process to cause the relative collision force between the toggle switch 5 and the DIMM groove buckle fixing frame to damage the two structures, thereby shortening the service life of the equipment; a guide post hole 611 is formed in the position, corresponding to the output shaft of the side push driving device, of the DIMM stirring block 61, wherein the output shaft of the side push driving device is inserted into the guide post hole 611 in the pressing process.

The conventional memory module has the disadvantage that the memory module must be manually fixed repeatedly during the machine test. Novel integral type drive arrangement module is through changing structural design, and newly-increased side pushes away little drive arrangement and follow DIMM slot buckle mount, makes the board test more convenient, has saved the output that must manual adjustment in-process manpower, has both embodied the convenience of board operation, has also saved enterprise's labour cost.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

Automatic detection pushes down device for PCBA board test, and the essential element includes: the drive arrangement fixing base of drive arrangement and both sides, the memory strip, DIMM slot are located DIMM slot both ends and with DIMM slot both ends bottom partly pivoted toggle switch, after inserting DIMM slot under the memory strip, both sides toggle switch rotates and tightly buckles in the buckle recess of memory strip and fixes the memory strip that is located DIMM slot, guarantees the normal program action of PCBA board test, its characterized in that: the two sides of the automatic detection pressing device are respectively provided with a DIMM groove buckle fixing frame, the driving device comprises a main driving device and side pushing driving devices positioned on the two sides of the main driving device, and the main driving device is used for pressing down and pushing the memory bank; the double-DIMM groove buckle fixing frame is characterized in that a power output end of a side push driving device is contacted with the upper part of the DIMM groove buckle fixing frame, the lower part of the DIMM groove buckle fixing frame is positioned above a toggle switch, after the driving device is started, the side push driving device and a main driving device synchronously press down and drive a memory bank and DIMM groove buckle fixing frame structures at two sides to move downwards together, and when the memory bank moves downwards, the DIMM groove buckle fixing frames at two sides move downwards and contact the toggle switch to enable the toggle switch to complete locking or poking-off operation of the memory bank in the lifting process of the DIMM groove buckle fixing frames at two sides;

the DIMM groove clamping and fixing frame sequentially comprises a DIMM shifting block, a DIMM bracket and a DIMM contact from top to bottom, wherein the upper end surface of the DIMM shifting block is contacted with the lower end surface of a power output shaft center of the side push driving device; the upper end of the DIMM bracket is provided with a sliding groove, the lower end part of the DIMM shifting block is fixed in the sliding groove of the DIMM bracket by a screw and nut component, and the lower end part of the DIMM bracket is arranged in the accommodating groove of the contact and is locked by a screw; the side face, far away from the DIMM slot, of the DIMM contact is an inner inclined face, one side, close to the DIMM slot, of the upper end face of the toggle switch is provided with a groove extending inwards, one side, far away from the DIMM slot, of the upper end face of the toggle switch is provided with a step face gradually increased step by step, the overall inclination of the step face is the same as that of the inner inclined face in the DIMM contact, and when the DIMM contact presses the upper end face of the toggle switch and the toggle switch is in a locking state, the inner inclined face of the DIMM contact is enabled to be tightly attached to the.
2. The automatic detecting and pressing device for testing the PCBA board as recited in claim 1, wherein: the automatic detection pressing device also comprises fixing plates at the front side and the rear side, the fixing plates are fixed on the front side and the rear side of the driving device fixing seat, and the bolt and nut assemblies are inserted into the holes in the DIMM shifting block and the vertical waist-shaped holes in the front fixing plate and the rear fixing plate in a penetrating manner, so that the shifting block can vertically move up and down in the vertical waist-shaped holes in the fixing plates; the bolt and nut assembly is inserted into a hole at the upper end of the DIMM bracket and an inclined waist-shaped hole in the front fixing plate and the back fixing plate in a penetrating way, so that the DIMM bracket connected with the DIMM poking block through the sliding groove can vertically move up and down while the poking block allows the DIMM bracket to perform inclined motion in the inclined waist-shaped hole, namely, the DIMM bracket can perform inclined lifting motion after rotating for a certain angle around a connecting screw rod in the sliding groove in the lifting and descending processes, the DIMM contact can incline along with the inclination of the DIMM bracket, and the locking and opening actions of the toggle switch are realized.
3. The automatic detecting and pressing device for testing the PCBA board as recited in claim 1, wherein: the upper end and the lower end of a sliding groove in the DIMM bracket are vertical sliding grooves, the middle part of the upper vertical sliding groove and the lower vertical sliding groove which are connected is a bending sliding groove with a certain bending angle, the bending sliding groove comprises a first bending sliding groove and a second bending sliding groove, and the bending directions of the bending sliding grooves in the DIMM groove clamping fixing frames at the two sides are all pointed to the DIMM groove clamping fixing frame at the opposite side.
4. The automatic detecting and pressing device for testing the PCBA board as recited in claim 1, wherein: the bottom end face of the inner inclined plane at the lower end of the DIMM contact is provided with an upward inclined touch prevention platform in the opposite direction, and a chamfer angle is arranged at a junction edge between the inclined plane and the upward inclined touch prevention platform.
5. The automatic detecting and pressing device for testing the PCBA board as recited in claim 1, wherein: and a guide post hole is formed in the position, corresponding to the output end shaft of the side pushing driving device, of the DIMM poking block, wherein the output end shaft of the side pushing driving device is inserted into the guide post hole in the pressing process.