CN113009312A - Microwave PCB welding-free connection experiment table - Google Patents

Microwave PCB welding-free connection experiment table Download PDF

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Publication number
CN113009312A
CN113009312A CN202110075323.7A CN202110075323A CN113009312A CN 113009312 A CN113009312 A CN 113009312A CN 202110075323 A CN202110075323 A CN 202110075323A CN 113009312 A CN113009312 A CN 113009312A
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China
Prior art keywords
clamping
pcb
locking
buckle
left end
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CN202110075323.7A
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Chinese (zh)
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CN113009312B (en
Inventor
吴勇标
羊恺
张兰海
李国鹏
彭代慧
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University of Electronic Science and Technology of China
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University of Electronic Science and Technology of China
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Priority to CN202110075323.7A priority Critical patent/CN113009312B/en
Publication of CN113009312A publication Critical patent/CN113009312A/en
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Publication of CN113009312B publication Critical patent/CN113009312B/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/28Testing of electronic circuits, e.g. by signal tracer
    • G01R31/2801Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP]
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02General constructional details
    • G01R1/04Housings; Supporting members; Arrangements of terminals
    • G01R1/0408Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
    • G01R1/0425Test clips, e.g. for IC's
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/28Testing of electronic circuits, e.g. by signal tracer
    • G01R31/2801Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP]
    • G01R31/2806Apparatus therefor, e.g. test stations, drivers, analysers, conveyors
    • G01R31/2808Holding, conveying or contacting devices, e.g. test adapters, edge connectors, extender boards
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/28Testing of electronic circuits, e.g. by signal tracer
    • G01R31/2801Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP]
    • G01R31/2818Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP] using test structures on, or modifications of, the card under test, made for the purpose of testing, e.g. additional components or connectors

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • General Engineering & Computer Science (AREA)
  • Clamps And Clips (AREA)

Abstract

The utility model provides a microwave PCB exempts from to weld and connects laboratory bench, relates to PCB and detects technical field, and it includes: the device comprises a bottom plate, a connecting mechanism, two clamping mechanisms and two connectors; the two clamping mechanisms are arranged on the bottom in a bilateral symmetry mode and respectively clamp the left end and the right end of the fixed PCB, the two connectors are fixed on the two clamping mechanisms in a one-to-one correspondence mode and are respectively electrically connected with the left end and the right end of the PCB, and the left end and the right end of the connecting mechanism are respectively connected with the two clamping mechanisms. This laboratory bench easy operation, nimble practical, the tight PCB board of various not unidimensional of clamp that can rapid and stable, and can fix a position the PCB board fast and make it be in the intermediate position, need not drill the PCB board simultaneously, simplify the tight operation of location clamp of PCB board greatly, improve detection efficiency.

Description

Microwave PCB welding-free connection experiment table
Technical Field
The invention relates to the technical field of PCB detection, in particular to a microwave PCB solderless connection experiment table.
Background
When the PCB is inspected, the PCB is required to be fixed on a test table with a connector. The existing mode is that two fixing holes are symmetrically arranged at the front and the back of the left end and the right end of the PCB, the fixing holes are fixed through bolts, the positioning and fastening effects are achieved, the positions of the fixing holes have high requirements, the PCB is centered after clamping is required, meanwhile, the PCB and the connector are required to be normally connected, the drilling requirement is high, the drilling is damaged to some extent, the overall detection efficiency of the PCB is low, and the operation is complex.
Therefore, it is necessary to design a microwave PCB solderless connection experimental bench to solve the above problems.
Disclosure of Invention
In order to solve the problems, the microwave PCB solderless connection experiment table is designed, is simple to operate, flexible and practical, can quickly and stably clamp various PCBs with different sizes, can quickly position the PCBs to enable the PCBs to be located at the middle positions, does not need to drill the PCBs, greatly simplifies the positioning and clamping operation of the PCBs, and improves the detection efficiency.
The invention provides a microwave PCB solderless connection experiment table, which comprises: the device comprises a bottom plate, a connecting mechanism, two clamping mechanisms and two connectors;
the two clamping mechanisms are arranged on the bottom in a bilateral symmetry mode and respectively clamp and fix the left end and the right end of the PCB, the two connectors are fixed on the two clamping mechanisms in a one-to-one correspondence mode and are respectively electrically connected with the left end and the right end of the PCB, and the left end and the right end of the connecting mechanism are respectively connected to the two clamping mechanisms;
wherein, clamping mechanism includes the mounting panel, the mount pad, press from both sides tight seat and thrust subassembly, in left clamping mechanism, the mounting panel is installed in the bottom plate left part, the mount pad is fixed on the mounting panel, mount pad right-hand member top is equipped with presss from both sides tight piece, press from both sides tight seat can reciprocate setting of adjusting and just be located and press from both sides tight piece below at the mount pad right-hand member, thrust subassembly sets up and presss from both sides the ascending thrust of tight seat in pressing from both sides tight seat below for press from both sides tight the fixing on pressing from both sides tight piece with the PCB board left end, the connector of left end is installed on mount pad upper portion and is connected with PCB board left end electricity, the coupling.
Preferably, the mounting plate of the right clamping mechanism is mounted to the right portion of the base plate so as to be movable left and right, unlike the left clamping mechanism.
Preferably, the thrust assembly comprises a guide post and a thrust spring, the lower end of the guide post extending in the vertical direction is fixed on the mounting plate, the upper end of the guide post can relatively move up and down and stretch into the clamping seat, and the thrust spring in a compressed state is sleeved on the guide post.
Preferably, all be equipped with buckle mechanism on two clamping mechanism, buckle mechanism includes buckle spare, buckle spring and buckle piece, in left clamping mechanism, the cover that the buckle piece can reciprocate is established on the guide post, the mount pad middle part is equipped with the mounting groove, the buckle spare middle part rotation of high right-hand member low in the left side is installed in the mounting groove, buckle spare left end passes through buckle spring coupling in the mounting groove, the buckle spring has a decurrent effort to buckle spare left end, buckle spare right-hand member tip stretches out the mounting groove right and stretches into in the buckle piece, buckle piece left end is equipped with the draw-in groove that holds buckle spare right-hand member tip card income.
Preferably, the clamping block and the clamping seat are directly provided with a tripping spring, the tripping spring is sleeved on the guide post, the left end of the bottom of the clamping seat is downwards provided with a tripping part, and the tripping part is positioned on the left side of the clamping block.
Preferably, coupling mechanism includes the connecting rod, the connecting block, the elasticity lasso, cover circle foot and guide foot, the fixed cover of connecting block is established at connecting rod central authorities, both ends are controlled the connecting rod that the direction extends and are controlled in the clamping mechanism's that stretches into about both ends mount pad that can control the left and right sides respectively, both ends all are equipped with the cover circle foot around the mount pad bottom at both ends, lasso foot bilateral symmetry on two mount pads, symmetry around the lasso foot on the same mount pad, connecting block bottom central authorities bilateral symmetry be equipped with two guide feet, the upset of elasticity lasso middle part is crisscross, both ends overlap respectively on two cover circle feet of controlling both ends mount pad about the elasticity lasso, the upset staggered joint in elasticity lasso middle part is located between two guide feet, and two guide feet stretch into in the.
Preferably, the center of the bottom of the connecting block is symmetrically provided with two limiting feet in front and back, and the two limiting feet are respectively positioned on the front side and the back side of the overturning staggered position in the middle of the elastic ferrule.
Preferably, the connecting block is provided with a clamping mechanism, the clamping mechanism comprises a clamping shaft, two clamping rods, four clamping columns, a guide rod, two limiting rods and a torsion spring, the lower end of the clamping shaft extending in the vertical direction is fixed in the center of the connecting block, the middle parts of the two clamping rods are rotatably arranged on the clamping shaft, the bottoms of the four clamping columns are respectively arranged at the two ends of the two clamping rods, the middle parts of the guide rods extending in the left-right direction are fixed on the clamping shaft, the middle parts of the two limiting rods oppositely arranged in the left-right direction are respectively sleeved at the left end and the right end of the guide rod in a left-right movable manner, the two limiting rods are respectively provided with a limiting through groove extending in the front-back direction, the lower ends of the two clamping columns on the left side can be arranged in the limiting through groove of the, one end of the torsion spring is fixed on the connecting block, and the other end of the torsion spring is fixed on one of the clamping rods and drives the torsion spring to rotate in a state of extending towards the left and right directions.
Preferably, the connecting block is provided with a clamping groove for accommodating the clamping shaft and the torsion spring.
Preferably, the two limiting rods are provided with locking mechanisms for locking, each locking mechanism comprises a locking hook, a locking piece and a locking spring, the locking hook is fixed on one limiting rod, the locking piece capable of hooking the locking hook can be installed on the other limiting rod in a back-and-forth movement mode and is arranged opposite to the locking hook in the left-and-right direction, the locking spring is installed on the other limiting rod, and the locking hook is hooked by the driving locking piece.
Compared with the prior art, the invention has the following beneficial effects: this laboratory bench easy operation, nimble practical, the tight PCB board of various not unidimensional of clamp that can rapid and stable, and can fix a position the PCB board fast and make it be in the intermediate position, need not drill the PCB board simultaneously, simplify the tight operation of location clamp of PCB board greatly, improve detection efficiency.
Drawings
FIG. 1 is a schematic structural diagram of a microwave PCB solderless connection experiment table for detecting PCB boards according to a preferred embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a microwave PCB solderless connection experiment table according to a preferred embodiment of the present invention;
FIG. 3 is a front view of the clamping mechanism on the left side of a preferred embodiment of the present invention;
FIG. 4 is a front view of another state of the clamping mechanism on the left side of a preferred embodiment of the present invention;
FIG. 5 is an exploded view of the left clamping mechanism of a preferred embodiment of the present invention;
FIG. 6 is a schematic structural view of a connection mechanism according to a preferred embodiment of the present invention;
FIG. 7 is a schematic view of another angle configuration of a connection mechanism in accordance with a preferred embodiment of the present invention;
FIG. 8 is an exploded view of a clamping mechanism according to a preferred embodiment of the present invention;
FIG. 9 is a partially exploded view of a clamping mechanism in accordance with a preferred embodiment of the present invention;
FIG. 10 is a schematic structural view of a latch mechanism according to a preferred embodiment of the present invention;
FIG. 11 is a cross-sectional view of a latching mechanism in accordance with a preferred embodiment of the present invention;
the reference numbers illustrate:
1. a PCB board, a PCB board and a PCB board,
2. a connector is arranged on the base plate and is provided with a plurality of connectors,
3. a bottom plate, a plurality of first connecting plates,
4. a connecting mechanism 41, a connecting rod 42, a connecting block 43, an elastic ferrule 44, a ferrule pin 45, a guide pin 46 and a limit pin,
5. clamping mechanism, 51, mounting plate, 52, mounting seat, 521, mounting groove, 522, clamping block, 53, clamping seat, 531, trip portion, 54, thrust assembly, 541, guide post, 542, thrust spring, 55, snap mechanism, 551, snap, 552, snap spring, 553, snap block, 554, card slot, 56, trip spring,
6. the clamping mechanism 61, the clamping shaft 62, the clamping rod 63, the clamping column 64, the guide rod 65, the limiting rod 66, the torsion spring 67, the limiting through groove 68 and the clamping groove,
7. a locking mechanism 71, a locking hook 72, a locking piece 73 and a locking spring.
Detailed Description
The technical scheme of the invention is clearly and completely described in the following with reference to the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 11, the microwave PCB solderless connection experiment table provided in this embodiment includes: a base plate 3, a connecting mechanism 4, two clamping mechanisms 5 and two connectors 2.
As shown in fig. 1 and 2, the two clamping mechanisms 5 are symmetrically arranged on the bottom and respectively clamp and fix the left and right ends of the PCB 1, the two connectors 2 are correspondingly fixed on the two clamping mechanisms 5 one by one and are respectively electrically connected with the left and right ends of the PCB 1, and the left and right ends of the connecting mechanism 4 are respectively connected with the two clamping mechanisms 5.
As shown in fig. 1 to 5, the clamping mechanism 5 includes a mounting plate 51, a mounting seat 52, a clamping seat 53, and a thrust assembly 54. The structure of the clamping mechanism 5 on the left and right sides is symmetrical, in the clamping mechanism 5 on the left side, the mounting plate 51 is installed on the left part of the bottom plate 3, the mounting seat 52 is fixed on the mounting plate 51, the top of the right end of the mounting seat 52 is provided with the clamping block 522, the clamping seat 53 can be adjusted up and down and is arranged at the right end of the mounting seat 52 and below the clamping block 522, the thrust component 54 is arranged below the clamping seat 53 and pushes the clamping seat 53 upwards, the clamping seat is used for clamping and fixing the left end of the PCB 1 on the clamping block 522, the connector 2 at the left end is installed on the upper part of the mounting seat 52 and is electrically connected with the left end of the PCB 1, and the left end of the connecting mechanism 4.
Place on coupling mechanism 4 when PCB board 1, PCB board 1 left end is placed on pressing from both sides tight seat 53, thrust subassembly 54 will promote PCB board 1 to move up and press from both sides tightly on pressing from both sides tight piece 522, when pressing from both sides the rigidity of tight piece 522, then the tight position of the clamp of PCB board 1 will also be fixed, thereby install connector 2 in suitable position, just can ensure that PCB board 1 and connector 2 can effective electricity be connected, connector 2's rigidity back, when follow-up detection PCB board 1, it can directly press from both sides tightly it. The structures of the clamping mechanisms 5 on the left and right sides are symmetrical, so the clamping operation and principle are the same.
Furthermore, the left end of the clamping seat 53 is provided with a boss extending in the up-down direction, the boss is matched with the boss, the mounting seat 52 is provided with a sliding groove extending in the up-down direction, and the boss can be matched in the sliding groove in the up-down direction, so that the boss has a good guiding effect on the clamping seat 53. And two clamping blocks 522 which are symmetrical front and back are arranged at the top of the mounting seat 52, so that the middle part of the connection between the PCB 1 and the electric connector 2 is exposed while the PCB 1 can be clamped well, and a detector can visually check the connection condition.
Unlike the left clamp mechanism 5, the mounting plate 51 of the right clamp mechanism 5 is mounted on the right portion of the base plate 3 so as to be movable in the right-and-left direction. The distance between the left clamping mechanism 5 and the right clamping mechanism 5 is adjustable, and the clamping mechanism can be applied to the PCB boards 1 with different length sizes, and is flexible and practical.
As shown in fig. 1 to 5, the thrust assembly 54 includes a guiding post 541 and a thrust spring 542, the lower end of the guiding post 541 extending in the vertical direction is fixed on the mounting plate 51, the upper end of the guiding post 541 can relatively move up and down and extend into the clamping seat 53, and the thrust spring 542 in a compressed state is sleeved on the guiding post 541. The guide posts 541 can guide and limit the moving direction of the clamping seat 53, so as to ensure that the PCB 1 can be better clamped on the clamping block 522; meanwhile, the pushing force of the pushing spring 542 on the clamping seat 53 is upward, so that the pushing force of the pushing spring 542 is more stable.
Meanwhile, a click mechanism 55 is provided on both the clamping mechanisms 5, and the click mechanism 55 includes a click member 551, a click spring 552, and a click block 553. Since the clamping mechanisms 5 on the left and right sides are symmetrical, only one side of the structure is described.
In the left clamping mechanism 5, a buckling block 553 can be sleeved on a guide post 541 in an up-and-down moving way, and a mounting groove 521 is arranged in the middle of a mounting seat 52. The middle of the locking member 551 with a high left and a low right is rotatably mounted in the mounting groove 521, the left end of the locking member 551 is connected in the mounting groove 521 through the locking spring 552, the locking spring 552 has a downward acting force on the left end of the locking member 551, and the right end of the locking member 551 has an upward acting force. The right end of the fastening member 551 extends rightward out of the mounting groove 521 and into the fastening block 553, and the left end of the fastening block 553 is provided with a clamping groove 554 for clamping the right end of the fastening member 551. Because the locking part 551 is high at the left and low at the right, the locking block 553 can only move up and down, when the left end of the locking block 553 is locked in the locking groove 554, the locking part 551 can limit the locking block 553 to move up, then the thrust of the thrust spring 542 can not be transmitted to the clamping seat 53, at this time, the clamping seat 53 can not clamp the PCB 1, and is in a loose state.
Meanwhile, a tripping spring 56 is directly arranged on the buckling block 553 and the clamping seat 53, the tripping spring 56 is sleeved on the guide post 541, a tripping part 531 is downwards arranged at the left end of the bottom of the clamping seat 53, and the tripping part 531 is positioned at the left side of the buckling block 553; and the bottom of the trip part 531 is provided with an inclined plane with a higher left and a lower right.
When the left end of the buckling block 553 is clamped into the clamping groove 554, the clamping seat 53 is continuously pressed downwards, the tripping spring 56 is compressed, and the tripping part 531 abuts against the right end of the buckling block 553; when the releasing part is pressed downwards continuously, the right end of the fastening part 551 has downward acting force to push the fastening part 551 to rotate, the right end of the fastening part 551 slowly disengages from the fastening groove 554 to rotate to be completely positioned in the mounting groove 521, the fastening block 553 disengages from the limitation of the fastening part 551, the compressed thrust spring 542 pushes the fastening block 553 to move upwards, and the fastening groove 554 moves to the right side of the releasing part 531. The downward pressure of the clamping seat 53 is removed, under the dual acting force of the thrust spring 542 and the tripping spring 56, the clamping seat 53 and the buckling block 553 move upwards, the right end of the buckling piece 551 cannot extend into the clamping groove 554 due to the blocking of the tripping part 531, namely, the tripping operation is completed, the clamping seat 53 can continue to clamp the PCB board 1, and the right end of the buckling piece 551 also extends out of the mounting groove 521 under the acting force of the buckling spring 552.
On the contrary, when the PCB 1 is not clamped, the clamping seat 53 is pressed down, the trip spring 56 pushes the fastening block 553 to move down, the right end of the fastening member 551 is fastened in the fastening groove 554, and the clamping seat 53 is released, so that the PCB 1 cannot be clamped. And the left end of the bottom of the clamping block 553 is provided with an inclined plane which is higher at the left end and lower at the right end, so that the right end of the clamping piece 551 can be clamped into the clamping groove 554 conveniently, and the clamping device is simple, convenient, flexible and practical.
The clamping mechanisms 5 on the left side and the right side are symmetrical, the operation methods are the same, force is applied to the connecting mechanism, meanwhile, the clamping seats 53 on the two sides are acted, the clamping and loosening operation of the PCB 1 on the left side and the right side can be finished simultaneously, and the PCB clamping device is simple and practical.
As shown in fig. 1, 2, 6 and 7, the connection mechanism 4 includes a connection rod 41, a connection block 42, an elastic ferrule 43, a ferrule leg 44 and a guide leg 45. Wherein, the connecting block 42 is fixedly sleeved at the center of the connecting rod 41, and the left and right ends of the connecting rod 41 extending in the left and right direction can respectively move left and right and extend into the mounting seats 52 of the clamping mechanisms 5 at the left and right ends. And the front and rear ends of the bottom of the mounting seats 52 at the two ends are respectively provided with a ferrule pin 44, the ferrule pins 44 on the two mounting seats 52 are symmetrical left and right, and the ferrule pins 44 on the same mounting seat 52 are symmetrical front and rear. The two guide pins 45 are symmetrically arranged at the center of the bottom of the connecting block 42 left and right, the middle of the elastic ferrule 43 is turned and staggered, the left end and the right end of the elastic ferrule 43 are respectively sleeved on the two ferrule pins 44 of the mounting seats 52 at the left end and the right end, the turning and staggering position of the middle of the elastic ferrule 43 is positioned between the two guide pins 45, and the two guide pins 45 extend into the elastic ferrule 43.
The acting force of the elastic ferrule 43 which is turned and staggered on the ferrule feet 44 on the clamping seats 53 at the left end and the right end is the same, the middle turning and staggered position of the elastic ferrule 43 is always in the middle and is positioned between the two guide feet 45, and the centers of the bottoms of the fixed connecting blocks 42 which are symmetrical left and right of the two guide feet 45 are provided. In this case, if the connecting block 42 is not located at the center of the elastic loop 43, the elastic loop 43 has different forces on the two guide legs 45, and drives the guide legs 45 to move left or right until the central position, and the forces on the two guide legs 45 are balanced and stable, and the position of the connecting block 42 is also at the center. This allows the left and right ends of the connecting rod 41 to be inserted into the left and right clamping seats 53 by the same length, and the connecting block 42 is always in the middle regardless of the distance between the two clamping mechanisms 5.
Further, the center of the bottom of the connecting block 42 is symmetrically provided with two limiting feet 46 in the front and back directions, the two limiting feet 46 are respectively positioned at the front side and the back side of the turnover staggered position in the middle of the elastic ferrule 43, so that the elastic ferrule 43 has a limiting effect, and the elastic ferrule 43 can drive the connecting block 42 to move to the middle position faster and more stably.
As shown in fig. 1, 2, 8 and 9, a clamping mechanism 6 is provided on the connecting block 42, and the clamping mechanism 6 includes a clamping shaft 61, two clamping rods 62, four clamping posts 63, a guide rod 64, two limiting rods 65 and a torsion spring 66.
Wherein, the centre gripping axle 61 lower extreme that the upper and lower direction extends is fixed at connecting block 42 central authorities, and two centre gripping poles 62 middle parts are rotated and are installed on centre gripping axle 61, and the both ends at two centre gripping poles 62 are installed respectively to four centre gripping post 63 bottoms. The middle part of the guide rod 64 extending in the left-right direction is fixed on the clamping shaft 61, the middle parts of the two limiting rods 65 which are oppositely arranged on the left side and the right side can be respectively sleeved at the left end and the right end of the guide rod 64 by the sleeves which can move left and right, the two limiting rods 65 can only move in the left-right direction, and the two limiting rods 65 are respectively provided with a limiting through groove 67 extending in the front-back direction. The lower ends of the two left clamping columns 63 are arranged in the limiting through groove 67 of the limiting rod 65 on the left side in a movable mode in a front-and-back mode, and the lower ends of the two right clamping columns 63 are arranged in the limiting through groove 67 of the limiting rod 65 on the right side in a movable mode in a front-and-back mode. And the torsion spring 66 is sleeved on the clamping shaft 61, one end of the torsion spring 66 is fixed on the connecting block 42, and the other end of the torsion spring 66 is fixed on one of the clamping rods 62 to drive the clamping rod to rotate in a state of extending in the left-right direction.
Under the action of the torsion spring 66, one of the clamping rods 62 is driven to rotate until the left end and the right end are respectively close to the left clamping mechanism 5 and the right clamping mechanism 5; at this moment, the two limiting rods 65 move towards the two ends respectively under the action force of the clamping columns 63 on the clamping rods 62, and the two limiting rods 65 drive the two clamping columns 63 of the other clamping rod 62 to move, so that the other clamping rod 62 also rotates, and the two clamping columns 63 in the limiting through grooves 67 of the same limiting rod 65 gradually approach each other. The four clamping columns 63 are symmetrical front and back and left and right, and the center of each clamping column is the center of the connecting block 42 and the middle of the two clamping mechanisms 5.
When the PCB 1 needs to be clamped, the clamping mechanism 6 can clamp the PCB 1 forwards and backwards, namely the four clamping columns 63 are respectively clamped and pressed at the front end and the rear end of the PCB 1, the four clamping columns 63 are symmetrical forwards and backwards and are symmetrical leftwards and rightwards, the PCB 1 clamped by the clamping mechanism 6 is positioned in the middle of the test bed in the front and rear direction, the center of the PCB 1 can be fixed by clamping through the clamping mechanism 6, the position determination of the PCB 1 and the effective connection with the electric connection are facilitated, the clamping and clamping efficiency is improved, and the detection of the PCB 1 is ensured to be performed quickly and effectively; and such fixture 6 can adapt to the PCB board 1 of multiple width size, and is nimble practical.
The clamping groove 68 for installing the clamping shaft 61 and the torsion spring 66 is arranged on the connecting block 42, so that the normal operation of each mechanism component can be ensured, and the occupied space is greatly reduced.
As shown in fig. 1, 2, 10 and 11, the two position-limiting rods 65 are provided with a locking mechanism 7 for locking, and the locking mechanism 7 includes a locking hook 71, a locking piece 72 and a locking spring 73.
The locking hook 71 is fixed on one limiting rod 65, the locking piece 72 capable of hooking the locking hook 71 is arranged on the other limiting rod 65 in a manner of moving back and forth and is arranged opposite to the locking hook 71 left and right, the locking spring 73 is arranged on the other limiting rod 65, and the locking piece 72 is driven to hook the locking hook 71; and a locking groove is arranged on the other limiting rod 65, a locking spring 73 is arranged in the locking groove, a locking piece 72 can be arranged in the locking groove in a vertically moving mode, the locking spring 73 abuts against the locking piece 72, and the locking piece 72 is driven to move towards the direction of hooking the locking hook 71.
In this embodiment, latch hook 71 is fixed at left gag lever post 65 upper portion right-hand member, latch hook 71 upwards has colluded, the hasp groove sets up gag lever post 65 upper portion left end on right side and is located latch hook 71 right side, hasp piece 72 left end is equipped with decurrent colluding, hasp spring 73 is to the decurrent effort of hasp piece 72, when hasp piece 72 hooks latch hook 71, can effectively prevent both unhookings, ensure that latched device 7 can effectual hasp, two gag lever posts 65 are close to, the centre gripping post 63 at front and back both ends separates, be convenient for placing and the centre gripping of PCB board 1, just can operate the completion alone.
Meanwhile, the upper end of the right end of the latch hook 71 and the lower end of the left end of the latch member 72 are provided with inclined planes which are higher at the left and lower at the right. When the latch hook 71 and the latch member 72 are not hooked in a matching manner, the latch member 72 is positioned on the right side of the latch hook 71 under the action of the latch spring 73, when the latch hook 71 and the latch member 72 approach each other, the two inclined surfaces of the upper end portion of the right end of the latch hook 71 and the lower end portion of the left end of the latch member 72 are attached to each other, and when the latch hook 71 and the latch member 72 continue to approach each other, the latch member 72 moves leftwards and moves upwards under the guide of the inclined surfaces, when the hook portion of the left end of the latch member 72 moves to the upper side of the hook portion of the right end of the latch hook 71, the. And the left end hook part of the locking element 72 is internally provided with an inclined plane matched with the inclined plane at the upper end part of the right end of the locking hook 71, when the hook is continuously pushed to be close to the locking element 72, the inclined plane in the left end hook part of the locking element 72 is attached to the inclined plane at the upper end part of the right end of the locking hook 71, and the left end hook part of the locking element 72 is slowly separated from the locking hook 71 under the guide of the inclined plane. The locking and loosening operation of the locking mechanism 7 is simple and convenient, only two limiting rods 65 need to be drawn together, and the locking mechanism is simple, convenient, flexible and practical
This laboratory bench easy operation, nimble practical, the tight PCB board 1 of various not unidimensional of clamp that can rapid and stable, and can fix a position PCB board 1 fast and make it be in the intermediate position, need not drill 1 PCB board simultaneously, simplify the tight operation of the location clamp of PCB board 1 greatly, improve detection efficiency.
Novel solutions, not limitations thereof; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. The utility model provides a microwave PCB exempts from to weld connects laboratory bench which characterized in that includes: the device comprises a bottom plate, a connecting mechanism, two clamping mechanisms and two connectors;
the two clamping mechanisms are arranged on the bottom in a bilateral symmetry mode and respectively clamp and fix the left end and the right end of the PCB, the two connectors are fixed on the two clamping mechanisms in a one-to-one correspondence mode and are respectively electrically connected with the left end and the right end of the PCB, and the left end and the right end of the connecting mechanism are respectively connected to the two clamping mechanisms;
wherein, clamping mechanism includes the mounting panel, the mount pad, press from both sides tight seat and thrust subassembly, in left clamping mechanism, the mounting panel is installed in the bottom plate left part, the mount pad is fixed on the mounting panel, mount pad right-hand member top is equipped with presss from both sides tight piece, press from both sides tight seat can reciprocate setting of adjusting and just be located and press from both sides tight piece below at the mount pad right-hand member, thrust subassembly sets up and presss from both sides the ascending thrust of tight seat in pressing from both sides tight seat below for press from both sides tight the fixing on pressing from both sides tight piece with the PCB board left end, the connector of left end is installed on mount pad upper portion and is connected with PCB board left end electricity, the coupling.
2. The microwave PCB solderless connection laboratory table as in claim 1, wherein: unlike the left clamping mechanism, the right clamping mechanism has a mounting plate that is mounted to the right of the base plate in a laterally movable manner.
3. The microwave PCB solderless connection laboratory table as in claim 1, wherein: the thrust assembly comprises a guide post and a thrust spring, the lower end of the guide post extending in the up-down direction is fixed on the mounting plate, the upper end of the guide post can move up and down relatively and stretch into the clamping seat, and the thrust spring in a compressed state is sleeved on the guide post.
4. The microwave PCB solderless connection laboratory bench of claim 3, wherein: all be equipped with buckle mechanism on two clamping mechanism, buckle mechanism includes buckle spare, buckle spring and buckle piece, in left clamping mechanism, the cover that the buckle piece can reciprocate is established on the guide post, the mount pad middle part is equipped with the mounting groove, the buckle spare middle part rotation of high right-hand member is installed in the mounting groove, buckle spare left end passes through buckle spring coupling in the mounting groove, the buckle spring has a decurrent effort to the buckle spare left end, buckle spare right-hand member tip stretches out the mounting groove right and stretches into in the buckle piece, buckle piece left end is equipped with the draw-in groove that holds buckle spare right-hand member tip card income.
5. The microwave PCB solderless connection laboratory bench of claim 4, wherein: the clamping block and the clamping seat are directly provided with a tripping spring which is sleeved on the guide post, the left end of the bottom of the clamping seat is downwards provided with a tripping part, and the tripping part is positioned on the left side of the clamping block.
6. The microwave PCB solderless connection laboratory table as in claim 1, wherein: coupling mechanism includes the connecting rod, the connecting block, the elastic ferrule, cover circle foot and guide foot, the fixed cover of connecting block is established at connecting rod central authorities, the connecting rod of controlling the direction extension about both ends can control respectively stretching into about stretching into in the clamping mechanism's at both ends mount pad, both ends all are equipped with the cover circle foot around the mount pad bottom at both ends, the lasso foot bilateral symmetry on two mount pads, symmetry around the lasso foot on same mount pad, the central bilateral symmetry of connecting block bottom is equipped with two guide feet, the upset of elastic ferrule middle part is crisscross, both ends overlap respectively on two cover circle feet of controlling both ends mount pad about the elastic ferrule, the upset staggered position in the middle part of the elastic ferrule is located between two guide feet, and two guide feet stretch into in the elastic ferrule.
7. The microwave PCB solderless connection laboratory table as in claim 6, wherein: two limiting feet are symmetrically arranged in the front and back of the center of the bottom of the connecting block and are respectively positioned on the front side and the back side of the overturning staggered position in the middle of the elastic ferrule.
8. The microwave PCB solderless connection laboratory table as in claim 6, wherein: a clamping mechanism is arranged on the connecting block, the clamping mechanism comprises a clamping shaft, two clamping rods, four clamping columns, a guide rod, two limiting rods and a torsion spring, the lower end of the clamping shaft extending in the vertical direction is fixed in the center of the connecting block, the middle parts of the two clamping rods are rotatably arranged on the clamping shaft, the bottoms of the four clamping columns are respectively arranged at two ends of the two clamping rods, the middle parts of the guide rods extending in the left and right directions are fixed on the clamping shaft, the middle parts of the two limiting rods which can be oppositely arranged in the left and right directions are respectively sleeved at the left and right ends of the guide rod in a leftward and right movable manner, limiting through grooves extending in the front and back directions are respectively arranged on the two limiting rods, the lower ends of the two clamping columns on the left side can be arranged in the limiting through grooves of the limiting rods on the left side, the other end of the torsion spring is fixed on one of the clamping rods and drives the torsion spring to rotate in a state of extending towards the left and right directions.
9. The microwave PCB solderless connection laboratory table as in claim 8, wherein: and a clamping groove for accommodating the clamping shaft and the torsion spring is arranged on the connecting block.
10. The microwave PCB solderless connection laboratory table as in claim 8, wherein: the two limiting rods are provided with locking mechanisms used for locking, each locking mechanism comprises a locking hook, a locking piece and a locking spring, the locking hook is fixed on one limiting rod, the locking piece capable of hooking the locking hook can be installed on the other limiting rod in a back-and-forth movement mode and is arranged opposite to the locking hook in the left-and-right direction, the locking spring is installed on the other limiting rod, and a driving locking fastener hooks the locking hook.
CN202110075323.7A 2021-01-20 2021-01-20 Microwave PCB welding-free connection experiment table Active CN113009312B (en)

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US6170641B1 (en) * 1998-05-04 2001-01-09 Vantico, Inc. Apparatus for transporting thin boards, in particular printed circuit boards
KR20140035087A (en) * 2012-09-13 2014-03-21 주식회사 테크아이 Vision press clamp moving structure
CN204807582U (en) * 2015-07-20 2015-11-25 航天新长征电动汽车技术有限公司 Test fixture
TWI569698B (en) * 2015-11-06 2017-02-01 財團法人工業技術研究院 Circuit board clipping and stretching device and control method thereof
TW201835592A (en) * 2017-03-21 2018-10-01 德律科技股份有限公司 Circuit board test system and circuit board test method
CN109128650A (en) * 2018-10-11 2019-01-04 朱秀芹 Work fixture device for electronic component processing maintenance
CN210690751U (en) * 2019-08-29 2020-06-05 无锡华测电子系统有限公司 Microwave PCB circuit test tool structure

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6170641B1 (en) * 1998-05-04 2001-01-09 Vantico, Inc. Apparatus for transporting thin boards, in particular printed circuit boards
KR20140035087A (en) * 2012-09-13 2014-03-21 주식회사 테크아이 Vision press clamp moving structure
CN204807582U (en) * 2015-07-20 2015-11-25 航天新长征电动汽车技术有限公司 Test fixture
TWI569698B (en) * 2015-11-06 2017-02-01 財團法人工業技術研究院 Circuit board clipping and stretching device and control method thereof
TW201835592A (en) * 2017-03-21 2018-10-01 德律科技股份有限公司 Circuit board test system and circuit board test method
CN109128650A (en) * 2018-10-11 2019-01-04 朱秀芹 Work fixture device for electronic component processing maintenance
CN210690751U (en) * 2019-08-29 2020-06-05 无锡华测电子系统有限公司 Microwave PCB circuit test tool structure

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