Jig for processing circuit board

Abstract

The invention relates to the technical field of circuit board processing, in particular to a circuit board processing jig, which is characterized in that a detection head fixing plate and a movable seat are respectively arranged at the front end and the rear end of a jig frame body; the detection head fixing plate is movably connected to the jig frame body; the first sliding mechanism is used for driving the movable seat to slide and driving the detection head fixing plate to turn over; an upper supporting structure and a lower supporting structure are sequentially arranged on the jig frame in the height direction. The upper supporting structure is composed of two upper supporting assemblies arranged on the two sides of the jig frame correspondingly. The lower supporting structure is composed of two lower supporting assemblies arranged on the two sides of the jig frame correspondingly. The upper supporting assembly and the lower supporting assembly can stretch out and draw back in the jig frame. The detection head fixing plate, the movable seat, the upper supporting assembly and the lower supporting assembly are all connected to the first sliding mechanism. The circuit board feeding device has the beneficial effects that the circuit board feeding continuity is improved, the feeding efficiency in the detection process is improved, a power source structure is reduced, and the detection efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit board processing, and in particular to a jig for circuit board processing. Background Art

[0002] Circuit detection prevents safety hazards caused by electrical faults. By identifying problems such as short circuits, leakage, and poor contact, risks such as fire or equipment damage can be effectively avoided.

[0003] During the inspection of the circuit board, the process of loading, powering and unloading the board needs to be completed on the fixture.

[0004] The existing circuit board inspection fixtures have the following disadvantages: 1. The feeding channel and the discharging channel on the fixture are on the same side. Before each board loading, the circuit board in the fixture needs to be taken out of the original route. The material cannot be loaded during the inspection, and the loading and unloading efficiency of the fixture is low; 2. The positioning and power-on test of the circuit board on the fixture need to be completed step by step, and the detection efficiency is low; 3. Different power structures are used to drive the probe detection and the circuit board positioning, and the power structure is complicated. Summary of the invention

[0005] The purpose of the present invention is to provide a circuit board processing tool to address the defects and shortcomings of the prior art.

[0006] To achieve the above object, the technical solution adopted by the present invention is: A jig for processing a circuit board according to the present invention comprises a jig frame; a detection head fixing plate and a movable seat are respectively arranged at the front and rear ends of the jig frame; the detection head fixing plate is movably connected to the jig frame; the movable seat is slidably connected to the detection head fixing plate; a sliding mechanism is arranged on the jig frame; the sliding mechanism is used to drive the movable seat to slide and drive the detection head fixing plate to perform a flipping motion; The fixture frame is provided with an upper support structure and a lower support structure in sequence along the height direction; The upper support structure is composed of two upper support assemblies respectively arranged on both sides of the jig frame; the lower support structure is composed of two lower support assemblies respectively arranged on both sides of the jig frame; the upper support assembly and the lower support assembly are both able to extend and retract inside the jig frame; the detection head fixing plate, the movable seat, the upper support assembly and the lower support assembly are all connected to the sliding mechanism.

[0007] Furthermore, a push block is provided on the movable seat; a push block guide hole slidably connected to the push block is opened on the side wall of the jig frame; the detection head fixing plate is rotatably connected to the jig frame through the detection plate rotating shaft; a first torsion spring is sleeved on the detection plate rotating shaft; the two ends of the first torsion spring are respectively connected to the jig frame and the detection head fixing plate; a limited stop block is provided on the jig frame; the limited stop block is arranged on the flipping path of the detection head fixing plate; a detection plate pressure wheel is fixed on the top of the detection head fixing plate; a second wedge block is fixed on the sliding mechanism; a lower stop bar is provided inside the jig frame; the push block and the lower stop bar are both arranged between the upper support assembly and the lower support assembly.

[0008] Furthermore, there are two sliding mechanisms; the sliding mechanisms are respectively arranged on both sides of the jig frame; the sliding mechanism includes a fixed platform fixed on the jig frame and a sliding rod seat body slidably connected to the fixed platform; a connecting rod is arranged on the movable seat; the second wedge block and the connecting rod are both fixed on the sliding rod seat body; the sliding rod seat body includes a main slide seat; a circular motion module is arranged on the main slide seat; the circular motion module is used to drive the upper support assembly and the lower support assembly to perform telescopic movement.

[0009] Further, the annular motion module includes a side slide seat; a guide hole is opened on the main slide seat; a guide shaft slidably connected to the guide hole is fixed on the side slide seat; upper and lower surfaces of the side slide seat are rotatably connected to upper rollers and lower rollers respectively; the lower roller is used to drive the upper support assembly and the lower support assembly to move; A circulating follow-up groove is provided on the bottom surface of the fixed table; the circulating follow-up groove is in the shape of a parallelogram; the groove width of the circulating follow-up groove is equal to the diameter of the upper roller; the upper roller is inserted into the circulating follow-up groove; the circulating follow-up groove consists of a first straight groove, a first inclined groove, a second straight groove and a second inclined groove; the two ends of the first inclined groove are respectively connected to one end of the first straight groove and one end of the second straight groove; the two ends of the second inclined groove are respectively connected to the other end of the first straight groove and the other end of the second straight groove.

[0010] Furthermore, the fixed platform is fixed with a first attraction magnet and a second attraction magnet; the two sides of the side sliding seat are respectively fixed with a first magnet bracket and a second magnet bracket; the first sliding seat magnet is fixed on the first magnet bracket; and the second sliding seat magnet is fixed on the second magnet bracket.

[0011] Furthermore, the upper support assembly includes a connecting plate, a rocker arm, and two guide rods fixed on the connecting plate; a guide sleeve is slidably connected to the guide rod; the guide sleeve is fixed on the fixed platform; a spring is sleeved on the guide rod; the two ends of the spring are respectively pressed on the guide sleeve and the connecting plate; an upper support platform is arranged on the connecting plate; the rocker arm is hinged on the fixed platform through a hinge shaft; a strip hole is arranged on the connecting plate; the end of the rocker arm is rotatably connected to a follower wheel; the follower wheel is inserted into the strip hole.

[0012] Furthermore, the upper support platform is composed of multiple wheel structures; the wheel structures are arranged along the length direction of the connecting plate; the wheel structure is composed of a limiting roller module and a roller fixing seat; the roller fixing seat is fixed on the connecting plate; the limiting roller module is composed of a roller shaft fixed on the roller fixing seat and a side positioning roller rotatably connected to the roller shaft; a limiting roller is fixed to the bottom end of the side positioning roller; the roller shaft, the side positioning roller and the limiting roller are all coaxially arranged; the diameter of the limiting roller gradually decreases along the height direction.

[0013] Furthermore, the lower support assembly includes a rack, a rotating shaft rotatably connected to the jig frame, and a lower support platform fixed on the shaft body of the rotating shaft; a plurality of teeth are arranged around the shaft body of the rotating shaft; the plurality of teeth form a gear; a rack sliding seat is fixed to the bottom of the jig frame; a second guide rail is fixed to the bottom of the rack; a through hole for passing the rack is arranged on the rack sliding seat; a rack guide groove matching the second guide rail is arranged inside the through hole; the second guide rail is slidably connected to the rack guide groove; the rack is meshed with the gear; a first wedge block is fixed to the rack.

[0014] Furthermore, the lower support platform is composed of a plurality of support rollers; the support rollers are arranged along the length direction of the rotating shaft.

[0015] Beneficial effects of the present invention: 1. During the circuit board inspection process, the circuit boards are fed in and out of the fixture using channels in different directions, and the feeding and discharging do not interfere with each other. During the inspection process, another circuit board can be preliminarily loaded, which improves the continuity of circuit board loading and improves the loading efficiency during the inspection process; 2. The positioning of the circuit board on the lower support assembly and the connection between the detection circuit on the detection head fixing plate and the contact piece of the circuit board are synchronously completed using the same sliding mechanism, which reduces the power source structure and improves the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2is a first-person perspective view of the upper support assembly; Figure 3 is a second perspective stereogram of the upper support assembly; Figure 4 yes Figure 3 A magnified view of section A; Figure 5 It is the structural diagram of the limit roller module; Figure 6 is a structural diagram of the lower support assembly; Figure 7 It is a first-person perspective structural diagram of the connection between the lower support assembly, the upper support assembly and the sliding mechanism; Figure 8 is a second perspective structural diagram of the connection between the lower support assembly, the upper support assembly and the sliding mechanism; Fig. 9 It is a structural diagram of the sliding rod seat body; Fig.10 It is the structural diagram of the fixed station; Fig.11 It is a three-dimensional diagram of the fixture frame; Fig.12 It is a cross-sectional view of the fixture frame; Description of reference numerals: 1. Detection head fixing plate; 101. Detection plate pressure wheel; 102. Detection plate rotating shaft; 2. Fixed table; 201. Circulating follower groove; 20101. First straight groove; 20102. First inclined groove; 20103, second straight slot; 20104, second inclined slot; 202, first attracting magnet; 203, second attracting magnet; 3. Sliding rod seat; 301. Main sliding seat; 30101. Guide hole; 302. Side sliding seat; 303, guide shaft; 304, first slide magnet; 305, first magnet bracket; 306, second magnet bracket; 307, second slide magnet; 308, first guide rail; 309, lower roller; 3010, upper roller; 4. movable seat; 401. push block; 402. connecting rod; 5. Lower support assembly; 501. Rotating shaft; 502. Gear; 503. Support roller; 504. Rack; 505, first wedge block; 506, second guide rail; 6. Upper support assembly; 601. Position limiting roller module; 60101. Roller shaft; 60102, side positioning roller; 60103, limiting roller; 602, roller fixing seat; 603, spring; 604, guide sleeve; 605, guide rod; 606, connecting plate; 60601, strip hole; 607, swing rod; 60701, hinge shaft; 608, follower wheel; 7, fixture frame; 701, push block guide hole; 702, upper stop bar; 703, second wedge block; 704, rack sliding seat; 70401, rack guide groove; 705, lower stop bar; 706, lower support mounting groove; 707, upper support mounting sliding groove; 708, roller avoidance groove; 709, limit stopper; 8, first torsion spring. DETAILED DESCRIPTION

[0017] The present invention will be further described below in conjunction with the accompanying drawings.

[0018] like Figures 1 to 12 As shown, a jig for processing a circuit board according to the present invention comprises a jig frame 7; a detection head fixing plate 1 and a movable seat 4 are respectively arranged at the front and rear ends of the jig frame 7; the detection head fixing plate 1 is movably connected to the jig frame 7; the movable seat 4 is slidably connected to the detection head fixing plate 1; a sliding mechanism is arranged on the jig frame 7; the sliding mechanism is used to drive the movable seat 4 to slide and drive the detection head fixing plate 1 to perform a flipping motion; The fixture frame 7 is provided with an upper support structure and a lower support structure in sequence along the height direction; The upper support structure is composed of two upper support assemblies 6 respectively arranged on both sides of the jig frame 7; the lower support structure is composed of two lower support assemblies 5 respectively arranged on both sides of the jig frame 7; the upper support assembly 6 and the lower support assembly 5 are both able to extend and retract inside the jig frame 7; the detection head fixing plate 1, the movable seat 4, the upper support assembly 6 and the lower support assembly 5 are all connected to the sliding mechanism; There are two upper support assemblies 6 and two lower support assemblies 5; an opening is provided on one side of the jig frame 7 in a "U" shape, and the detection head fixing plate 1 is provided on one side of the opening of the jig frame 7; an upper stop bar 702 is fixed on the end surface of the opening of the jig frame 7; the circuit board is positioned by the upper stop bar 702 and the other three surfaces of the jig frame 7; the upper stop bar 702 does not hinder the circuit board from sliding on the lower support assembly 5; The detection head fixing plate 1 is an insulating plate, on which a connector is connected, and a metal contact piece is provided on the bottom surface of the connector, which is used to contact and energize the contact piece of the circuit board to be tested, and the other end of the connector is connected to an external detection circuit; The top and bottom of the jig frame 7 are both open; in the first step, the circuit board to be tested is first placed from the top opening of the jig frame 7 to the surface of the upper support assembly 6; in the second step, the upper support assembly 6 is retracted so that the circuit board on the upper support assembly 6 falls onto the surface of the lower support assembly 5; in the third step, the sliding mechanism drives the movable seat 4 and the detection head fixing plate 1 to start moving, so that the circuit board slides on the lower support assembly 5, and when the circuit board is pushed to the specified position and misaligned with the original position, the detection head fixing plate 1 just flips down to contact with the circuit board contact piece; in the fourth step, the detection head fixing plate 1 connects the circuit to detect the circuit of the circuit board; in the fifth step, the detection head fixing plate 1 and the movable seat 4 leave the circuit board on the lower support assembly 5, and the lower support assembly 5 is retracted to be misaligned with the inner hole of the jig frame 7, and the circuit board in the jig frame 7 falls onto the material receiving mechanism below; After the circuit board falls from the upper support assembly 6 to the lower support assembly 5, the upper support assembly 6 is reset to prepare for the next circuit board. After the upper support assembly 6 is reset, a new circuit board can be loaded without waiting for the lower support assembly 5 to complete the measurement before loading the board, thus reducing the waiting time for loading and unloading. Likewise, when the upper supporting assembly 6 and the lower supporting assembly 5 act alternately, the unloading of the lower supporting assembly 5 will not affect the loading of the upper supporting assembly 6 .

[0019] Beneficial effects of the present invention: 1. During the circuit board inspection process, the circuit boards are fed in and out of the fixture using channels in different directions, and the feeding and discharging do not interfere with each other. During the inspection process, another circuit board can be preliminarily loaded, thereby improving the loading efficiency during the circuit board inspection process; 2. The positioning of the circuit board on the lower support assembly 5 and the connection between the detection circuit on the detection head fixing plate 1 and the contact piece of the circuit board are synchronously completed using the same sliding mechanism, which reduces the power source structure and improves the detection efficiency.

[0020] As a preferred embodiment of the present invention, a push block 401 is provided on the movable seat 4; a push block guide hole 701 slidably connected to the push block 401 is opened on the side wall of the jig frame 7; the detection head fixing plate 1 is rotatably connected to the jig frame 7 through the detection plate rotating shaft 102; a first torsion spring 8 is sleeved on the detection plate rotating shaft 102; the two ends of the first torsion spring 8 are respectively connected to the jig frame 7 and the detection head fixing plate 1; a limited stopper 709 is provided on the jig frame 7; the limited stopper 709 is arranged on the flipping path of the detection head fixing plate 1; a detection plate pressure wheel 101 is fixed on the top of the detection head fixing plate 1; a second wedge block 703 is fixed on the sliding mechanism; a lower stopper 705 is provided inside the jig frame 7; the push block 401 and the lower stopper 705 are both arranged between the upper support assembly 6 and the lower support assembly 5; The detection plate pressure wheel 101 is a roller structure; before the lower support assembly 5 is put on the board, the push block 401 is retracted into the push block guide hole 701, which does not hinder the circuit board from entering the lower support assembly 5; Before the second wedge block 703 comes into contact with the detection plate pressure wheel 101, the elastic force of the first torsion spring 8 causes the detection head fixing plate 1 to flip up and fit tightly against the limit stopper 709; After the circuit board enters the surface of the lower support assembly 5, the sliding mechanism moves, driving the movable seat 4 and the second wedge block 703 to move; the push block 401 slides in the push block guide hole 701, and the push block 401 pushes the circuit board on the lower support assembly 5 forward until the other end of the circuit board is attached to the lower stop bar 705. In this state, the measuring interface on the circuit board is misaligned with the circuit board on the upper support assembly 6; because the push block 401 and the second wedge block 703 move synchronously with the sliding mechanism, the second wedge block 703 will push the detection plate pressure wheel 101, so that the detection head fixing plate 1 overcomes the elastic force of the first torsion spring 8 and flips downward; When the circuit board is pressed against the surface of the lower baffle 705, the circuit on the detection head fixing plate 1 is in contact with the circuit board and energized, and power-on detection is performed; when the sliding mechanism drives the movable seat 4 to reset, the push block 401 removes the pressure on the circuit board and does not prevent the circuit board from falling into the fixture frame 7; at the same time, the detection head fixing plate 1 moves away from the circuit board and is pressed against the limit block 709 again.

[0021] As a preferred embodiment of the present invention, there are two sliding mechanisms; the sliding mechanisms are respectively arranged on both sides of the fixture frame 7; the sliding mechanism includes a fixed platform 2 fixed on the fixture frame 7 and a sliding rod seat 3 slidably connected to the fixed platform 2; a connecting rod 402 is arranged on the movable seat 4; the second wedge block 703 and the connecting rod 402 are both fixed on the sliding rod seat 3; the sliding rod seat 3 includes a main slide 301; a circular motion module is arranged on the main slide 301; the circular motion module is used to drive the upper support assembly 6 and the lower support assembly 5 to perform telescopic movement; A slider is fixed to the bottom of the main slide 301; a first guide rail 308 slidably connected to the slider is fixed on the surface of the fixed platform 2; in actual application, the movable seat 4 is equipped with a cylinder or an electric cylinder, which can drive the movable seat 4 to perform translational motion along the first guide rail 308, thereby realizing the main slide 301 and the second wedge block 703 and the connecting rod 402 on the main slide 301 to move linearly. The second wedge block 703 and the connecting rod 402 can be driven to move by a single cylinder or an electric cylinder, which can save power costs; and the action sequence of the second wedge block 703 and the connecting rod 402 is fixed, making the fixture debugging simpler.

[0022] As a preferred embodiment of the present invention, the annular motion module includes a side slide seat 302; a guide hole 30101 is provided on the main slide seat 301; a guide shaft 303 slidably connected to the guide hole 30101 is fixed on the side slide seat 302; an upper roller 3010 and a lower roller 309 are rotatably connected to the upper and lower surfaces of the side slide seat 302 respectively; the lower roller 309 is used to drive the upper support assembly 6 and the lower support assembly 5 to move; The bottom surface of the fixed table 2 is provided with a circulating follow-up groove 201; the circulating follow-up groove 201 is in a parallelogram shape; the groove width of the circulating follow-up groove 201 is equal to the diameter of the upper roller 3010; the upper roller 3010 is inserted into the circulating follow-up groove 201; the circulating follow-up groove 201 is composed of a first straight groove 20101, a first inclined groove 20102, a second straight groove 20103 and a second inclined groove 20104; the two ends of the first inclined groove 20102 are respectively connected to one end of the first straight groove 20101 and one end of the second straight groove 20103; the two ends of the second inclined groove 20104 are respectively connected to the other end of the first straight groove 20101 and the other end of the second straight groove 20103; When the main slide 301 slides back and forth, it drives the side slide 302 to move together, because the upper roller 3010 forms a circular motion inside the circular follower groove 201; after the electric cylinder or the air cylinder drives the movable seat 4 to move, when the main slide 301 moves close to the side of the detection head fixing plate 1, the upper roller 3010 slides from the second straight groove 20103 to the second inclined groove 20104; during the process of the second straight groove 20103, the lower roller 309 causes the upper support assembly 6 to retract, and the circuit board on the surface of the upper support assembly 6 falls onto the lower support assembly 5; before the upper roller 3010 enters the second inclined groove 20104, the upper support assembly Part 6 is reset and re-extended into the inner cavity of the fixture frame 7 to prepare for the next loading of the circuit board to be tested; after the lower support component 5 is reset, the push block 401 pushes the circuit board on the lower support component 5 forward, and the detection head fixing plate 1 overcomes the first torsion spring 8 and flips; until the upper roller 3010 moves to the intersection of the second inclined groove 20104 and the first straight groove 20101, this state is the maximum stroke of the sliding rod seat body 3, the circuit on the detection head fixing plate 1 is connected with the circuit of the circuit board, and at the same time, the push block 401 presses the circuit board on the lower support component 5 against the lower baffle 705 to position the circuit board. The electric cylinder or the air cylinder drives the movable seat 4, and when the main slide 301 moves away from the detection head fixing plate 1, the upper roller 3010 enters the first straight groove 20101; when the upper roller 3010 slides in the first straight groove 20101, the push block 401 and the detection head fixing plate 1 are first separated from the circuit board on the lower support assembly 5, and then after the main slide 301 moves a certain distance, the lower support assembly 5 is pushed by the lower roller 309 to move, so that the lower support assembly 5 shrinks, and the circuit board on the lower support assembly 5 that has been tested falls to the material receiving mechanism below. Before the upper roller 3010 is in the first straight groove 20101 and does not enter the first inclined groove 20102, the lower support assembly 5 automatically resets and extends into the inner cavity of the fixture frame 7 to wait for material receiving; The upper roller 3010 enters the position where the second straight groove 20103 intersects the first inclined groove 20102 as the minimum stroke; when the main slide 301 continues to move away from the side of the detection head fixing plate 1 under the drive of the cylinder or electric cylinder, it re-enters the position where the second straight groove 20103 intersects the first inclined groove 20102 from the first inclined groove 20102 to complete a cycle.

[0023] By driving the movable seat 4 to do reciprocating motion through a power structure, the lower support assembly 5 and the upper support assembly 6 can be contracted in sequence, and a fixed motion relationship is formed between the sliding rod seat body 3, the lower support assembly 5 and the upper support assembly 6, forming an inherent motion logic, without the risk of interference, simplifying the structure of the circuit system, making the circuit system for controlling the loading and unloading of the fixture simpler and more stable in operation.

[0024] As a preferred embodiment of the present invention, the fixed platform is fixed with a first attraction magnet 202 and a second attraction magnet 203; the two sides of the side sliding seat 302 are respectively fixed with a first magnet bracket 305 and a second magnet bracket 306; the first magnet bracket 305 is fixed with a first sliding seat magnet 304; the second magnet bracket 306 is fixed with a second sliding seat magnet 307; When the upper roller 3010 moves to the intersection of the second straight groove 20103 and the first inclined groove 20102; the adsorption force between the second slide seat magnet 307 and the second attraction magnet 203 (at this time, the attraction force of the first attraction magnet 202 to the first slide seat magnet 304 can be ignored), the side slide seat 302 has a pulling force away from the first straight groove 20101, and the upper roller 3010 is closely attached to the second straight groove 20103, ensuring that the upper roller 3010 can smoothly enter the second straight groove 20103 when sliding from the intersection of the second straight groove 20103 and the first inclined groove 20102 to the second inclined groove 20104; Similarly, when the upper roller 3010 is at the intersection of the second inclined groove 20104 and the first straight groove 20101, the first attraction magnet 202 has an attraction on the first slide magnet 304 (at this time, the attraction generated between the second slide magnet 307 and the second attraction magnet 203 can be ignored), so that when the upper roller 3010 slides from the second inclined groove 20104 to the first inclined groove 20102, it can smoothly enter the side of the first straight groove 20101.

[0025] As a preferred embodiment of the present invention, the upper support assembly 6 includes a connecting plate 606, a swing rod 607, and two guide rods 605 fixed on the connecting plate 606; the guide rod 605 is slidably connected with a guide sleeve 604; the guide sleeve 604 is fixed on the fixed platform 5; the guide rod 605 is sleeved with a spring 603; the two ends of the spring 603 are respectively pressed on the guide sleeve 604 and the connecting plate 606; the connecting plate 606 is provided with an upper support platform; the swing rod 607 is hinged to the fixed platform 2 through a hinge shaft 60701; the connecting plate 606 is provided with a strip hole 60601; the end of the swing rod 607 is rotatably connected with a follower wheel 608; the follower wheel 608 is inserted into the strip hole 60601; An upper support slide groove 707 is provided on the side wall of the fixture frame 7 to provide space for the retraction of the connecting plate 606; the length of the upper support slide groove 707 is less than the length of the circuit board to ensure that both sides of the circuit board will not enter the upper support slide groove 707; When the lower roller 309 slides in the second straight groove 20103, the lower roller 309 squeezes the rocker rod 607, so that the follower wheel 608 pulls the upper support platform on the connecting plate 606 to retract; after the lower roller 309 releases the squeezing of the rocker rod 607, the spring 603 resets the connecting plate 606 and extends into the inner cavity of the fixture frame 7.

[0026] As a preferred embodiment of the present invention, the upper support platform is composed of a plurality of wheel structures; the wheel structures are arranged along the length direction of the connecting plate 606; the wheel structure is composed of a limiting roller module 601 and a roller fixing seat 602; the roller fixing seat 602 is fixed on the connecting plate 606; the limiting roller module 601 is composed of a roller shaft 60101 fixed on the roller fixing seat 602 and a side positioning roller 60102 rotatably connected to the roller shaft 60101; a limiting roller 60103 is fixed at the bottom end of the side positioning roller 60102; the roller shaft 60101, the side positioning roller 60102 and the limiting roller 60103 are all coaxially arranged; the diameter of the limiting roller 60103 gradually decreases along the height direction; the top surface of the limiting roller 60103 is used to support the circuit board, through The circuit board is supported in a balanced manner by multiple limiting rollers 60103 of the upper support components 6 on both sides; after the connecting plate 606 is retracted inward, the limiting roller module 601 is retracted as a whole into the upper support sliding groove 707, and the limiting roller 60103 no longer supports the circuit board, and the circuit board automatically falls to the bottom; after the upper support component 6 is reset, the conical surface structure of the limiting rollers 60103 on both sides can automatically press the circuit board down and fit it on the lower support component 5 to prevent the circuit board from tilting up when the detection head fixing plate 1 is pressed down; at the same time, the limiting roller 60103 with a frustum structure can form a rolling connection with the circuit board, reducing the resistance of the push block 401 when pushing the circuit board; the limiting roller 60103 with a gradually decreasing diameter forms a frustum structure; the fixture frame 7 is provided with a roller avoidance groove 708 at the position corresponding to the wheel structure, which is used for avoiding the wheel structure when the upper support component 6 is retracted.

[0027] As a preferred embodiment of the present invention, the lower support assembly 5 includes a rack 504, a rotating shaft 501 rotatably connected to the fixture frame 7, and a lower support platform fixed on the shaft body of the rotating shaft 501; a plurality of teeth are arranged around the shaft body of the rotating shaft 501; the plurality of teeth form a gear 502; a rack sliding seat 704 is fixed to the bottom of the fixture frame 7; a second guide rail 506 is fixed to the bottom of the rack 504; a through hole for passing the rack 504 is arranged on the rack sliding seat 704; a rack guide groove 70401 matching the second guide rail 506 is arranged inside the through hole; the second guide rail 506 is slidably connected to the rack guide groove 70401; the rack 504 is meshed with the gear 502; a first wedge block 505 is fixed to the rack 504; A second torsion spring is provided on the rotating shaft 501; the second torsion spring resets the lower support platform to a horizontal level and enables the lower support platform to form an elastic support for the circuit board; the rotating shaft 501 and the second torsion spring are installed in the lower support installation groove 706; When the upper roller 3010 slides in the first straight groove 20101, the lower roller 309 pushes the first wedge block 505, and the rack 504 slides in the rack guide groove 70401, so that the rotating shaft 501 rotates, and the lower support platform is swung downward, so that the support platform and the inner cavity of the fixture frame 7 are misaligned, and the circuit board can fall; after the lower roller 309 leaves the first wedge block 505, the elastic force of the second torsion spring causes the rotating shaft 501 to reset and extend into the fixture frame 7.

[0028] As a preferred embodiment of the present invention, the lower support platform is composed of a plurality of support rollers 503; the support rollers 503 are arranged along the length direction of the rotating shaft 501; the circuit board is formed into a rolling connection on the lower support assembly 5 through the support rollers 503, and the combined wheel structure can reduce the friction force when the circuit board is pushed by the push block 401, thereby better protecting the surface quality of the circuit board.

[0029] Working principle of the present invention: In the first step, the upper roller 3010 is reset to the intersection of the first inclined groove 20102 and the second straight groove 20103, and the circuit board is placed on the top surface of the limiting roller 60103; In this state, the lower roller 309 is not in contact with the first wedge block 505 and the second wedge block 703, and the supporting roller 503 and the limiting roller 60103 are both extended into the inner cavity of the fixture frame 7; In the second step, the movable seat 4 and the sliding rod seat body 3 move toward the direction of the detection head fixed plate 1. After the upper roller 3010 moves to the second straight groove 20103, the lower roller 309 pushes the swing rod 607, so that the connecting plate 606 and the limiting roller 60103 retract inward, and the circuit board falls from the surface of the limiting roller 60103 to the surface of the lower support assembly 5; it is supported by multiple support rollers 503 on both sides; In the third step, the movable seat 4 and the sliding rod seat body 3 continue to move toward the direction of the detection head fixed plate 1, and the upper roller 3010 slides from the second straight groove 20103 through the second inclined groove 20104 to the intersection of the second inclined groove 20104 and the first straight groove 20101; during this process, the circuit board begins to be pushed by the push block 401, and then the second wedge block 703 begins to push the detection plate pressure wheel 101, causing the detection head fixed plate 1 to flip. When the upper roller 3010 reaches the intersection of the second inclined groove 20104 and the first straight groove 20101, the travel of the movable seat 4 and the sliding rod seat body 3 reaches the maximum value; in this state, the circuit board is pressed against the lower stop bar 705 by the push block 401; the circuit on the detection head fixed plate 1 is just connected to the contact piece of the circuit board; In the fourth step, the movable seat 4 and the sliding rod seat body 3 move in the direction away from the detection head fixing plate 1. Since the first attraction magnet 202 attracts the first slide seat magnet 304 by attraction, the side slide seat 302 is sucked; the upper roller 3010 will not reverse to the second inclined groove 20104, and the upper roller 3010 directly enters the first straight groove 20101, and pushes the first wedge block 505 through the lower roller 309, so that the rotating shaft 501 rotates, and the supporting roller 503 flips downward, causing the circuit board to fall; Step 5: The movable seat 4 and the sliding rod seat body 3 continue to move away from the detection head fixed plate 1, the lower roller 309 leaves the first wedge block 505, the rotating shaft 501 is reset due to the action of the second torsion spring, and the supporting roller 503 re-enters the inner cavity of the fixture frame 7; In the sixth step, the movable seat 4 and the sliding rod seat body 3 continue to move away from the detection head fixing plate 1, and the upper roller 3010 enters the first inclined groove 20102 from the first straight groove 20101 to complete the reset. In addition, the upper roller 3010 is at the intersection of the first inclined groove 20102 and the second straight groove 20103. Due to the attraction between the second attraction magnet 204 and the second slide magnet 307, the side slide seat 302 is sucked, so that the upper roller 3010 will not re-enter the first inclined groove 20102, but directly enter the second straight groove 20103.

[0030] The above description is only a preferred embodiment of the present invention, so all equivalent changes or modifications made according to the structure, characteristics and principles described in the scope of the patent application of the present invention are included in the scope of the patent application of the present invention.

Claims

1. A jig for processing a circuit board, characterized in that: The jig frame (7) comprises a jig frame (7); a detection head fixing plate (1) and a movable seat (4) are respectively arranged at the front and rear ends of the jig frame (7); the detection head fixing plate (1) is movably connected to the jig frame (7); the movable seat (4) is slidably connected to the detection head fixing plate (1); a sliding mechanism is arranged on the jig frame (7); the sliding mechanism is used to drive the movable seat (4) to slide and drive the detection head fixing plate (1) to perform a flipping movement; An upper supporting structure and a lower supporting structure are sequentially arranged on the jig frame (7) along the height direction; The upper support structure is composed of two upper support assemblies (6) respectively arranged on both sides of the jig frame (7); the lower support structure is composed of two lower support assemblies (5) respectively arranged on both sides of the jig frame (7); the upper support assembly (6) and the lower support assembly (5) are both capable of extending and retracting inside the jig frame (7); and the detection head fixing plate (1), the movable seat (4), the upper support assembly (6) and the lower support assembly (5) are all connected to a sliding mechanism.

2. A circuit board processing jig according to claim 1, characterized in that: The movable seat (4) is provided with a push block (401); a push block guide hole (701) slidably connected to the push block (401) is opened on the side wall of the jig frame (7); the detection head fixing plate (1) is rotatably connected to the jig frame (7) via a detection plate rotating shaft (102); a first torsion spring (8) is sleeved on the detection plate rotating shaft (102); two ends of the first torsion spring (8) are respectively connected to the jig frame (7) and the detection head fixing plate (1); the jig frame ( 7) is provided with a limit stopper (709); the limit stopper (709) is arranged on the flipping path of the detection head fixing plate (1); a detection plate pressure wheel (101) is fixed on the top of the detection head fixing plate (1); a second wedge block (703) is fixed on the sliding mechanism; a lower stopper (705) is arranged inside the fixture frame (7); the push block (401) and the lower stopper (705) are both arranged between the upper support assembly (6) and the lower support assembly (5).

3. A circuit board processing jig according to claim 2, characterized in that: There are two sliding mechanisms; the sliding mechanisms are respectively arranged on both sides of the fixture frame (7); the sliding mechanism comprises a fixed platform (2) fixed on the fixture frame (7) and a sliding rod seat body (3) slidably connected to the fixed platform (2); a connecting rod (402) is arranged on the movable seat (4); the second wedge block (703) and the connecting rod (402) are both fixed on the sliding rod seat body (3); the sliding rod seat body (3) comprises a main sliding seat (301); a circular motion module is arranged on the main sliding seat (301); the circular motion module is used to drive the upper support assembly (6) and the lower support assembly (5) to perform telescopic movement.

4. A circuit board processing jig according to claim 3, characterized in that: The annular motion module comprises a side sliding seat (302); a guide hole (30101) is formed on the main sliding seat (301); a guide shaft (303) is fixed on the side sliding seat (302) and is slidably connected to the guide hole (30101); an upper roller (3010) and a lower roller (309) are rotatably connected to the upper and lower surfaces of the side sliding seat (302); the lower roller (309) is used to drive the upper support assembly (6) and the lower support assembly (5) to move; The bottom surface of the fixed table (2) is provided with a circulating follow-up groove (201); the circulating follow-up groove (201) is in a parallelogram shape; the groove width of the circulating follow-up groove (201) is equal to the diameter of the upper roller (3010); the upper roller (3010) is inserted into the circulating follow-up groove (201); the circulating follow-up groove (201) is composed of a first straight groove (20101), a first inclined groove (20102), a second straight groove (20103) and a second inclined groove (20104); the two ends of the first inclined groove (20102) are respectively connected to one end of the first straight groove (20101) and one end of the second straight groove (20103); the two ends of the second inclined groove (20104) are respectively connected to the other end of the first straight groove (20101) and the other end of the second straight groove (20103).

5. A circuit board processing jig according to claim 4, characterized in that: A first attraction magnet (202) and a second attraction magnet (203) are fixed on the fixed platform; a first magnet bracket (305) and a second magnet bracket (306) are respectively fixed on both sides of the side sliding seat (302); a first sliding seat magnet (304) is fixed on the first magnet bracket (305); and a second sliding seat magnet (307) is fixed on the second magnet bracket (306).

6. A circuit board processing jig according to claim 4, characterized in that: The upper support assembly (6) comprises a connecting plate (606), a swing rod (607), and two guide rods (605) fixed on the connecting plate (606); a guide sleeve (604) is slidably connected to the guide rod (605); the guide sleeve (604) is fixed to the fixed platform (5); a spring (603) is sleeved on the guide rod (605); two ends of the spring (603) are respectively pressed against the guide sleeve (604) and the connecting plate (606); an upper support platform is arranged on the connecting plate (606); the swing rod (607) is hinged to the fixed platform (2) via a hinge shaft (60701); a strip hole (60601) is arranged on the connecting plate (606); a follower wheel (608) is rotatably connected to the end of the swing rod (607); the follower wheel (608) is inserted into the strip hole (60601).

7. A circuit board processing jig according to claim 6, characterized in that: The upper support platform is composed of a plurality of wheel structures; the wheel structures are arranged along the length direction of the connecting plate (606); the wheel structure is composed of a limiting roller module (601) and a roller fixing seat (602); the roller fixing seat (602) is fixed on the connecting plate (606); the limiting roller module (601) is composed of a roller shaft (60101) fixed on the roller fixing seat (602) and a side positioning roller (60102) rotatably connected to the roller shaft (60101); a limiting roller (60103) is fixed at the bottom end of the side positioning roller (60102); the roller shaft (60101), the side positioning roller (60102) and the limiting roller (60103) are all coaxially arranged; the diameter of the limiting roller (60103) gradually decreases along the height direction.

8. A circuit board processing jig according to claim 4, characterized in that: The lower support assembly (5) comprises a rack (504), a rotating shaft (501) rotatably connected to a jig frame (7), and a lower support platform fixed to the shaft body of the rotating shaft (501); a plurality of teeth are arranged around the shaft body of the rotating shaft (501); the plurality of teeth form a gear (502); a rack sliding seat (704) is fixed to the bottom of the jig frame (7); a second guide rail (506) is fixed to the bottom of the rack (504); a through hole for passing the rack (504) is arranged on the rack sliding seat (704); a rack guide groove (70401) matching the second guide rail (506) is arranged inside the through hole; the second guide rail (506) is slidably connected to the rack guide groove (70401); the rack (504) is meshed with the gear (502); and a first wedge block (505) is fixed to the rack (504).

9. A circuit board processing jig according to claim 8, characterized in that: The lower support platform is composed of a plurality of support rollers (503); the support rollers (503) are arranged along the length direction of the rotating shaft (501).

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