PCBA placing jig

Abstract

The utility model discloses a PCBA (Printed Circuit Board Assembly) placing jig, which belongs to the technical field of PCBA processing and comprises a jig bottom plate, a mounting bedplate, a supporting bedplate, an air pressure valve, a pneumatic switch and two electric push rods are fixedly mounted on the upper surface of the jig bottom plate, a hinge is arranged on the upper surface of the mounting bedplate, and a protective cover plate is mounted on the upper surface of the mounting bedplate in a hinged manner through the hinge. A handle is fixedly installed on the upper edge of the protective cover plate, and two lock sleeve plates are fixed to the side face of the protective cover plate. According to the PCBA jig, the mounting table plate is arranged to be matched with the supporting table plate and the protective cover plate for use, the PCBA is placed on the surface of the jig bottom plate, and the abutting plate, the abutting plate and the pressing disc are matched for use, so that front-back side clamping, left-right side clamping and longitudinal clamping of the PCBA are achieved, the fixing effect is good, the deviation and dislocation phenomena cannot occur before and after vertical furnace operation is conducted, and the production efficiency is improved. And the problems that PCBA is prone to being damaged, deformed and bent when tweezers are manually operated for feeding and discharging are solved, and the working efficiency is effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of PCBA processing, and in particular relates to a PCBA placement jig. Background Art

[0002] The PCB blank board goes through the entire process of SMT loading or DIP plug-in, referred to as PCBA. In the process of PCBA processing and production, multiple production and processing procedures are required. One of the procedures is to use a vertical furnace to perform PCBA curing operation. During the operation, the PCBA needs to be placed on the placement carrier for material placement operations. The existing placement fixture is installed in the PCBA embedded, so when taking it out of the vertical furnace, it is necessary to manually use tweezers to lift the PCBA for sampling operations. The manual operation efficiency is low, and the tweezers operation is easy to scratch the PCB, causing the PCB to deform. If it flows out of the factory, it will lead to customer complaints. Utility Model Content

[0003] The utility model aims to provide a PCBA placement jig to solve the problem that the existing placement jig proposed in the above background technology is installed in an embedded manner in the PCBA. Therefore, when taking out the PCBA from the vertical furnace, it is necessary to manually use tweezers to lift the PCBA for sampling operation. The manual operation efficiency is low, and the tweezers operation is easy to scratch the PCB, causing the PCB to deform, which will lead to customer complaints if it flows out of the factory.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a PCBA placement jig, comprising a jig base plate, a mounting plate, a supporting plate, an air pressure valve, a pneumatic switch and two electric push rods are fixedly installed on the upper surface of the jig base plate, a hinge is provided on the upper surface of the mounting plate and a protective cover is hingedly installed through the hinge, a handle is fixedly installed on the upper side of the protective cover, two locking sleeve plates are fixedly fixed on the side of the protective cover, the locking sleeve plates are fitted and arranged on the upper surface of the supporting plate, two cylinders are fixed on the upper surface of the supporting plate, a locking sleeve rod is fixedly installed on the end of the piston rod of the cylinder, the locking sleeve rod and the locking sleeve plate are used in combination, the air pressure valve is used in combination with the cylinder, the pneumatic switch is used in combination with the electric push rod, a connecting strip is fixedly installed on the end of the piston rod of the electric push rod, and a resistance plate is fixedly installed on both ends of the connecting strip, a plurality of pressure plates are movably provided on the protective cover, and a tightening plate is movably provided on one side of the supporting plate.

[0005] By adopting the above scheme, a mounting plate is set to cooperate with a supporting plate and a protective cover plate, and the PCBA is placed on the surface of the fixture bottom plate. The contact plate, the top plate and the pressure plate are used in cooperation to achieve front and rear side clamping, left and right side clamping and longitudinal clamping of the PCBA, so that the fixing effect is good, and there will be no offset or misalignment before and after the vertical furnace operation. It is convenient to carry out the loading and unloading operations, avoiding the problem of PCBA damage, deformation and bending that is easy to occur when manually operating tweezers to load and unload, and effectively improving the working efficiency.

[0006] As a preferred embodiment, a trapezoidal sliding block is fixedly mounted on the outer surface of the locking sleeve rod, and a trapezoidal sliding groove for sliding the trapezoidal sliding block is formed on the upper surface of the supporting table.

[0007] With the above solution, when the cylinder drives the locking sleeve rod to move, the locking sleeve rod will drive the trapezoidal slider to slide in the trapezoidal slide groove, and then the trapezoidal slider and the trapezoidal slide groove are used together to ensure the stable movement of the locking sleeve rod.

[0008] As a preferred embodiment, a pushing groove is opened on the upper surface of the jig base plate and a limiting slide groove is fixedly installed on the inner wall of the pushing groove, the bottom end of the contact plate is located in the pushing groove and a limiting slider is fixedly installed on the side of the contact plate, the limiting slider is slidably installed on the inner wall of the limiting slide groove and a first spring is fixed on the side of the limiting slider, and the first spring is fixed on the inner wall of the limiting slide groove.

[0009] By adopting the above solution, the limiting slider is used in conjunction with the limiting slide groove to support the movement of the resistance plate, and the setting of the first spring can achieve a rapid reset effect.

[0010] As a preferred embodiment, a plurality of sliding rods are slidably installed on the protective cover plate, a top plate is fixedly installed on the top end of the sliding rod, the bottom end of the sliding rod is fixedly connected to the pressure plate, and the outer sleeve of the sliding rod is provided with a second spring whose two ends are respectively fixedly connected to the protective cover plate and the pressure plate.

[0011] By adopting the above scheme, the sliding rod is used in conjunction with the second spring. The sliding rod can ensure that the pressure plate moves up and down stably without shaking. The second spring can make the pressure plate always be subjected to a downward force when the protective cover is horizontal, thereby achieving a stable longitudinal pressure holding effect on the PCBA.

[0012] As a preferred embodiment, an adjustment groove is opened on the side of the support table, and a bidirectional threaded rod is rotatably installed in the adjustment groove, a knob is fixedly installed on one end of the bidirectional threaded rod, threaded sleeves are threadedly installed on the outer surfaces of the two sections of the threads of the bidirectional threaded rod, an articulated arm is hingedly installed on the threaded sleeve, and a tightening plate is hingedly installed on the other end of the articulated arm.

[0013] By adopting the above solution, the rotation of the bidirectional threaded rod drives the threaded sleeve to move, and then the clamping plate is driven to move under the action of the articulated arm, so that the left and right sides of the PCBA are clamped.

[0014] As a preferred embodiment, a plurality of slide rails are fixedly mounted on the inner wall of the adjustment groove on the support table, a plurality of slide rail blocks are fixed on the outer surface of the threaded sleeve, and the slide rail blocks are slidably mounted on the outer surface of the slide rails.

[0015] By adopting the above solution, the slide rail bar and the slide rail block are used together to provide limit support for the movement of the threaded sleeve, improve the movement stability and prevent shaking.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The PCBA placement jig is used by setting a mounting table to cooperate with a supporting table and a protective cover. The PCBA is placed on the surface of the jig bottom plate, and is used in cooperation with a contact plate, a top clamping plate and a pressure plate to achieve front and rear side clamping, left and right side clamping and longitudinal clamping of the PCBA, so that the fixing effect is good, and there will be no offset or misalignment before and after vertical furnace operation. It is convenient to carry out loading and unloading operations, avoiding the problem of PCBA damage, deformation and bending that is easy to occur when manually operating tweezers to load and unload, and effectively improving the working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the protective cover of the utility model when it is opened;

[0020] Figure 3 This is a structural schematic diagram of the support platform of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the electric push rod of the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the pressure plate of the utility model;

[0023] Figure 6 It is a cross-sectional schematic diagram of the support platform of the utility model.

[0024] In the figure: 1. fixture base plate; 2. mounting plate; 3. supporting plate; 4. air pressure valve; 5. pneumatic switch; 6. electric push rod; 7. hinge; 8. protective cover; 9. handle; 10. locking plate; 11. cylinder; 12. locking rod; 13. connecting strip; 14. contact plate; 15. pressure plate; 16. trapezoidal slider; 17. limit slider; 18. first spring; 19. sliding rod; 20. top plate; 21. second spring; 22. bidirectional threaded rod; 23. threaded sleeve; 24. articulated arm; 25. tightening plate; 26. slide rail block; 27. slide rail. DETAILED DESCRIPTION

[0025] See also Figures 1-5 The utility model provides a PCBA placement fixture, including a fixture base plate 1, a mounting table plate 2, a supporting table plate 3, an air pressure valve 4, a pneumatic switch 5 and two electric push rods 6 are fixedly installed on the upper surface of the fixture base plate 1, a hinge 7 is arranged on the upper surface of the mounting table plate 2, and a protective cover plate 8 is hingedly installed through the hinge 7, a handle 9 is fixedly installed on the upper side of the protective cover plate 8, and two locking sleeve plates 10 are fixed on the side of the protective cover plate 8, and the locking sleeve plates 10 are arranged on the upper surface of the supporting table plate 3, and the supporting table Two cylinders 11 are fixed on the upper surface of the plate 3, and a locking rod 12 is fixedly installed at the end of the piston rod of the cylinder 11. The locking rod 12 and the locking plate 10 are used in conjunction with each other, the air pressure valve 4 is used in conjunction with the cylinder 11, and the pneumatic switch 5 is used in conjunction with the electric push rod 6. A connecting strip 13 is fixedly installed at the end of the piston rod of the electric push rod 6, and a resistance plate 14 is fixedly installed at both ends of the connecting strip 13. A plurality of pressure plates 15 are movably provided on the protective cover plate 8, and a tightening plate 25 is movably provided on one side of the supporting table plate 3.

[0026] By setting up the installation table 2 for use with the support table 3 and the protective cover plate 8, the PCBA is placed on the surface of the fixture bottom plate 1, and the contact plate 14, the top clamping plate 25 and the pressure plate 15 are used in cooperation to achieve the front and rear side clamping, left and right side clamping and longitudinal clamping of the PCBA, so that the fixing effect is good, and there will be no offset or misalignment before and after the vertical furnace operation, and it is convenient to carry out the loading and unloading operations, avoiding the problem of PCBA damage, deformation and bending that is easy to occur when manually operating tweezers to load and unload, and effectively improving the working efficiency.

[0027] A trapezoidal slider 16 is fixedly installed on the outer surface of the locking sleeve rod 12, and a trapezoidal slide groove is provided on the upper surface of the supporting table 3 for the trapezoidal slider 16 to slide. When the cylinder 11 drives the locking sleeve rod 12 to move, the locking sleeve rod 12 will drive the trapezoidal slider 16 to slide in the trapezoidal slide groove, and then the trapezoidal slider 16 and the trapezoidal slide groove are used in combination to ensure the stable movement of the locking sleeve rod 12.

[0028] A pushing groove is provided on the upper surface of the jig base plate 1 and a limiting slide groove is fixedly installed on the inner wall of the pushing groove. The bottom end of the contact plate 14 is located in the pushing groove and a limiting slider 17 is fixedly installed on the side of the contact plate 14. The limiting slider 17 is slidably installed on the inner wall of the limiting slide groove and a first spring 18 is fixed on the side of the limiting slider 17. The first spring 18 is fixed on the inner wall of the limiting slide groove. The limiting slider 17 is used in conjunction with the limiting slide groove to support the movement of the contact plate 14. The setting of the first spring 18 can achieve a quick reset effect.

[0029] A plurality of sliding rods 19 are slidably mounted on the protective cover 8, a top plate 20 is fixedly mounted on the top of the sliding rod 19, the bottom end of the sliding rod 19 is fixedly connected to the pressure plate 15, and the outer sleeve of the sliding rod 19 is provided with a second spring 21 whose two ends are respectively fixedly connected to the protective cover 8 and the pressure plate 15. By using the setting of the sliding rod 19 in conjunction with the second spring 21, the sliding rod 19 can ensure that the pressure plate 15 can stably move up and down without shaking, and the second spring 21 can make the pressure plate 15 always be subjected to a downward force when the protective cover 8 is horizontal, thereby achieving a stable effect of longitudinally pressing and holding the PCBA.

[0030] An adjustment groove is provided on the side of the support table 3, and a bidirectional threaded rod 22 is rotatably installed in the adjustment groove, a knob is fixedly installed at one end of the bidirectional threaded rod 22, threaded sleeves 23 are threadedly installed on the outer surfaces of the two sections of the thread of the bidirectional threaded rod 22, an articulated arm 24 is hingedly installed on the threaded sleeve 23, and a tightening plate 25 is hingedly installed on the other end of the articulated arm 24. The rotation of the bidirectional threaded rod 22 drives the threaded sleeve 23 to move, and then the tightening plate 25 is driven to move under the action of the articulated arm 24, so as to tighten the left and right sides of the PCBA.

[0031] A plurality of slide rails 27 are fixedly installed on the inner wall of the adjustment groove on the support table 3, and a plurality of slide rail blocks 26 are fixed on the outer surface of the threaded sleeve 23. The slide rail blocks 26 are slidably installed on the outer surface of the slide rails 27. The slide rails 27 and the slide rail blocks 26 are used together to provide limited support for the movement of the threaded sleeve 23, thereby improving the smoothness of the movement and preventing shaking.

[0032] During use, the air cylinder 11 is controlled by the air pressure valve 4 to drive the lock sleeve rod 12 away from the lock sleeve plate 10. After unlocking the protective cover plate 8, the protective cover plate 8 is opened by cooperating the handle 9 and the hinge 7. The PCBA is placed on the surface of the fixture base plate 1. After placing it properly, the contact plate 14 is driven to move by starting the switch, and the PCBA is clamped on the front and rear sides by using the contact plate 14. The two-way threaded rod 22 is rotated by turning the knob, and then the threaded sleeve 23 is driven to move. Under the action of the hinge arm 24, the pressing plate 25 is driven to move to clamp the PCBA on the left and right sides. After clamping, the protective cover plate 8 is rotated and closed, and the lock sleeve rod 12 is driven by the air cylinder 11 to insert into the lock sleeve plate 10. At this time, the action of the second spring 21 will drive the pressure plate 15 to longitudinally press the PCBA, completing the feeding and placement. When discharging, the above steps are operated in reverse.

Claims

1. A PCBA placement jig, characterized in that: The jig comprises a jig base plate (1), the upper surface of which is fixedly mounted a mounting plate (2), a supporting plate (3), an air pressure valve (4), a pneumatic switch (5) and two electric push rods (6), the upper surface of which is provided with a hinge (7) and a protective cover plate (8) is hingedly mounted via the hinge (7), a handle (9) is fixedly mounted on the upper side of the protective cover plate (8), two locking plates (10) are fixedly mounted on the side of the protective cover plate (8), the locking plates (10) are fitted and arranged on the upper surface of the supporting plate (3), and two locking plates (10) are fixedly mounted on the upper surface of the supporting plate (3) A cylinder (11), a locking rod (12) is fixedly mounted on the piston rod end of the cylinder (11), the locking rod (12) and the locking plate (10) are used in conjunction with each other, the air pressure valve (4) is used in conjunction with the cylinder (11), the pneumatic switch (5) is used in conjunction with the electric push rod (6), a connecting strip (13) is fixedly mounted on the piston rod end of the electric push rod (6), both ends of the connecting strip (13) are fixedly mounted with abutment plates (14), a plurality of pressure plates (15) are movably mounted on the protective cover plate (8), and a tightening plate (25) is movably mounted on one side of the support plate (3).

2. The PCBA placement jig according to claim 1, characterized in that: A trapezoidal sliding block (16) is fixedly mounted on the outer surface of the locking sleeve rod (12), and a trapezoidal sliding groove for the trapezoidal sliding block (16) to slide is provided on the upper surface of the supporting platform (3).

3. The PCBA placement jig according to claim 1, characterized in that: The upper surface of the jig base plate (1) is provided with a pushing groove and a limiting sliding groove is fixedly installed on the inner wall of the pushing groove; the bottom end of the contact plate (14) is located in the pushing groove and a limiting sliding block (17) is fixedly installed on the side of the contact plate (14); the limiting sliding block (17) is slidably installed on the inner wall of the limiting sliding groove and a first spring (18) is fixed on the side of the limiting sliding block (17); the first spring (18) is fixed on the inner wall of the limiting sliding groove.

4. The PCBA placement jig according to claim 1, characterized in that: A plurality of sliding rods (19) are slidably mounted on the protective cover plate (8), a top plate (20) is fixedly mounted on the top end of the sliding rod (19), the bottom end of the sliding rod (19) is fixedly connected to the pressure plate (15), and the outer sleeve of the sliding rod (19) is provided with a second spring (21) whose two ends are respectively fixedly connected to the protective cover plate (8) and the pressure plate (15).

5. The PCBA placement jig according to claim 1, characterized in that: An adjustment groove is provided on the side of the support table (3), and a bidirectional threaded rod (22) is rotatably installed in the adjustment groove, a knob is fixedly installed on one end of the bidirectional threaded rod (22), threaded sleeves (23) are threadedly installed on the outer surfaces of the two sections of the thread of the bidirectional threaded rod (22), an articulated arm (24) is hingedly installed on the threaded sleeve (23), and a tightening plate (25) is hingedly installed on the other end of the articulated arm (24).

6. The PCBA placement jig according to claim 5, characterized in that: A plurality of slide rails (27) are fixedly mounted on the inner wall of the adjustment groove on the support table (3), a plurality of slide rail blocks (26) are fixedly mounted on the outer surface of the threaded sleeve (23), and the slide rail blocks (26) are slidably mounted on the outer surface of the slide rails (27).

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