A pneumatic quick mounting and demounting base for SMT furnace carrier

Abstract

The utility model belongs to the technical field of passing through the furnace carrier, and relates to a pneumatic quick loading and unloading base of SMT passing through the furnace carrier, including two support plates, the top of two support plates is fixed with the mounting panel, the mounting panel upper end face is equipped with the locating groove that is formed by four L type guide blocks, be connected with the fixture in the locating groove, the fixture includes the bottom plate, be equipped with the mounting slot on the bottom plate, the edge of mounting slot is equipped with a plurality of avoidance slot, two sides of mounting slot adjacent all are equipped with the clamping assembly, be equipped with the hole of lifting material in the mounting slot, be equipped with the lifting material assembly of facing the hole of lifting material on the mounting panel. The clamping assembly can clamp and fix the PCB product in the fixture, prevent loosening, the lifting material assembly is used for lifting the product from the fixture after the product is loosened by the clamping assembly, and the product is conveniently discharged.

Description

Technical Field

[0001] This utility model relates to the field of reflow carrier technology, and in particular to a pneumatic quick-loading and unloading base for an SMT reflow carrier. Background Technology

[0002] In current SMT production lines, the loading and unloading of packaging substrates mainly relies on manual operation. This method has problems such as low efficiency, large errors, high labor intensity and poor consistency. However, the loading and unloading process is one of the key links in production efficiency and product quality. Especially in the ball grid array packaging industry, accurate and rapid loading and unloading is crucial for maintaining the continuity of the production process and reducing operation time. The current process uses a steel plate as a carrier. The packaging substrate is manually placed on the steel plate, aligned with the openings on the substrate using pins on the steel plate, and then secured with high-temperature tape. This process is not only time-consuming and labor-intensive but also presents several significant problems: First, manual alignment of the pins is prone to misalignment, leading to inaccurate substrate fixation and affecting the precision of subsequent processes and the quality of the final product. Second, the high-temperature tape fixation method is unstable and susceptible to environmental factors, potentially causing the substrate to loosen or shift during processing. Furthermore, the high-temperature tape must be manually removed after unloading, which easily leaves adhesive residue, affecting the surface quality of the substrate and subsequent processes, increasing cleaning difficulty and production costs. Repetitive manual work is not only inefficient but also increases the labor intensity and fatigue of operators, further increasing the probability of errors. Inconsistencies in manual operation also affect production consistency and reliability. Therefore, this invention proposes a pneumatic quick-loading and unloading base for SMT reflow ovens. Utility Model Content

[0003] The main objective of this invention is to provide a pneumatic quick-loading and unloading base for SMT reflow carriers to solve the problems mentioned in the background art.

[0004] This utility model achieves the above-mentioned objective through the following technical solution: a pneumatic quick-loading and unloading base for an SMT reflow carrier, comprising two support plates, with a mounting plate fixed to the top of the two support plates. The upper surface of the mounting plate is provided with a positioning groove composed of four L-shaped guide blocks. A fixture is connected in the positioning groove. The fixture includes a base plate, with a mounting groove on the base plate. Multiple clearance grooves are provided on the edge of the mounting groove. Clamping components are provided on both adjacent sides of the mounting groove. A top material hole is provided in the mounting groove. A top material component is provided on the mounting plate facing the top material hole.

[0005] Preferably, the top material assembly includes a connecting plate vertically disposed on the lower end face of the mounting plate, the connecting plate is provided with a lifting cylinder, and a top block is connected to the top rod of the lifting cylinder facing the top material hole.

[0006] Preferably, the clamping assembly includes a T-shaped clamping block. The upper surface of the base plate has a first guide groove that matches the vertical portion of the T-shaped clamping block. The lower surface of the base plate, located behind the first guide groove, has a second guide groove that matches the horizontal portion of the T-shaped clamping block. The first guide groove and the second guide groove are connected. The horizontal portion of the T-shaped clamping block is slidably connected within the second guide groove. The vertical portion of the T-shaped clamping block extends into the first guide groove from the connecting portion. The end of the vertical portion of the T-shaped clamping block has a tapered clamping head. The upper surface of the clamping head... The first guide groove extends above the upper end of the vertical portion of the T-shaped clamping block. A tapered notch connecting to the mounting groove is provided at the end of the first guide groove. The clamping head extends into the mounting groove, which contains a clamping head clearance groove. A spring receiving groove perpendicular to the first guide groove is located at its middle position. A forked spring is installed in the spring receiving groove, with the head of the forked spring abutting against the side wall of the clamping head, and both ends of the forked spring abutting against the inner wall of the spring receiving groove. The forked spring is in a compressed state. A drive assembly for driving the T-shaped clamping block to slide is connected to the mounting plate.

[0007] Preferably, the driving assembly includes a second cylinder disposed on the lower end face of the mounting plate parallel to the sliding direction of the T-shaped clamping block. A connecting block is provided on the push rod of the second cylinder, and a protrusion is provided on the upper end face of the connecting block. A first through groove is provided on the mounting plate, and the protrusion extends into the first through groove. A second through groove along the length direction is provided on the vertical portion of the T-shaped clamping block behind the bifurcated spring. A third through groove is provided in the first guide groove behind the spring receiving groove. A push block is provided on the upper end face of the protrusion, and the push block extends into the second through groove through the third through groove.

[0008] The beneficial effects of this utility model are: the clamping component can clamp and fix the PCB product in the fixture, avoiding the problems of unstable fixing and residual adhesive caused by using high-temperature resistant tape in the prior art; the ejector component is used to eject the product from the fixture after the clamping component releases the product, which facilitates unloading. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the pneumatic quick-loading and unloading base structure of the SMT reflow carrier for an example.

[0010] Figure 2 This is a schematic diagram of the fixture structure.

[0011] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0012] Figure 4 This is one of the schematic diagrams of the base plate structure.

[0013] Figure 5 This is the second schematic diagram of the base plate structure.

[0014] Figure 6 This is a schematic diagram of the support plate structure.

[0015] Figure 7 This is a schematic diagram of the second cylinder structure.

[0016] The numbers in the diagram represent: 1. Support plate; 2. Mounting plate; 3. L-shaped guide block; 4. Base plate; 5. Mounting groove; 6. Clearance groove; 7. Top material hole; 8. Connecting plate; 9. Lifting cylinder; 10. Top block; 11. T-shaped clamping block; 12. First guide groove; 13. Second guide groove; 14. Clamping head; 15. Conical notch; 16. Clamping head clearance groove; 17. Spring receiving groove; 18. Forked spring; 19. Second cylinder; 20. Connecting block; 21. Protrusion; 22. First through groove; 23. Second through groove; 24. Push block; 25. Third through groove. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to specific embodiments.

[0018] Example: like Figure 1-7 As shown, this utility model discloses a pneumatic quick-loading and unloading base for an SMT reflow carrier, comprising two support plates 1, with a mounting plate 2 fixed to the top of the two support plates 1. The upper surface of the mounting plate 2 is provided with a positioning groove composed of four L-shaped guide blocks 3. A fixture is connected in the positioning groove. The fixture includes a base plate 4, and the base plate is provided with a mounting groove 5. The edge of the mounting groove 5 is provided with multiple clearance grooves 6. Clamping components are provided on both adjacent sides of the mounting groove 5. A top material hole 7 is provided in the mounting groove 5. A top material component is provided on the mounting plate 2 facing the top material hole 7.

[0019] The top material assembly includes a connecting plate 8 vertically disposed on the lower end surface of the mounting plate 2. A lifting cylinder 9 is provided on the connecting plate 8, and a top block 10 facing the top material hole 7 is connected to the top rod of the lifting cylinder 9.

[0020] The clamping assembly includes a T-shaped clamping block 11. The upper surface of the base plate has a first guide groove 12 that matches the vertical portion of the T-shaped clamping block 11. The lower surface of the base plate, located behind the first guide groove 12, has a second guide groove 13 that matches the horizontal portion of the T-shaped clamping block 11. The first guide groove 12 and the second guide groove 13 are connected. The horizontal portion of the T-shaped clamping block 11 is slidably connected within the second guide groove 13. The vertical portion of the T-shaped clamping block 11 extends into the first guide groove 12 through the connection point. The end of the vertical portion of the T-shaped clamping block 11 has a tapered clamping head 14. The upper surface of the clamping head 14 is higher than the upper surface of the vertical portion of the T-shaped clamping block 11. The end of the groove 12 is provided with a conical notch 15 that connects to the mounting groove 5. The clamping head 14 extends into the mounting groove 5. The mounting groove 5 is provided with a clamping head clearance groove 16. A spring receiving groove 17 perpendicular to the first guide groove 12 is provided at the middle position. A bifurcated spring 18 is installed in the spring receiving groove 17. The head of the bifurcated spring abuts against the side wall of the clamping head 14. The two ends of the bifurcated spring 18 abut against the inner wall of the spring receiving groove 17. The bifurcated spring 18 is in a compressed state. The elastic force provided by the bifurcated spring 18 keeps the clamping head 14 in the state of being extended into the mounting groove 5, i.e., in a clamped state. A drive assembly for driving the T-shaped clamping block 11 to slide is connected to the mounting plate 2.

[0021] The driving assembly includes a second cylinder 19 disposed on the lower end face of the mounting plate 2 parallel to the sliding direction of the T-shaped clamp 11. A connecting block 20 is provided on the top rod of the second cylinder 19. A protrusion 21 is provided on the upper end face of the connecting block 20. A first through groove 22 is provided on the mounting plate 2. The protrusion 21 extends into the first through groove 22. A second through groove 23 is provided on the vertical part of the T-shaped clamp 11 behind the bifurcated spring 18 along its length direction. A third through groove 25 is provided in the first guide groove behind the spring receiving groove. A push block 24 is provided on the upper end face of the protrusion 21. The push block 24 passes through the third through groove 25 and extends into the second through groove 23.

[0022] The mounting plate 2 is equipped with a first manual valve and a second manual valve for controlling the retraction of the lifting cylinder and the second cylinder 19, respectively.

[0023] The fixture is placed into the positioning groove, the push rod of the second cylinder 19 extends, thereby driving the push block 24 to slide outward. The push block 24 pushes the T-shaped clamping block 11 to slide outward, thereby causing the clamping head 14 to exit the mounting groove 5. The PCB product is placed into the mounting groove 5, the second cylinder 19 drives the push block 24 to reset, the T-shaped clamping block 11 returns to the clamping state, and the clamping head 14 clamps and fixes the PCB product. The fixture is then removed and sent to the soldering furnace. When it is necessary to remove the PCB product, the fixture is installed back into the positioning groove, the second cylinder 19 drives the clamping block to slide outward, releasing the PCB product, and the lifting cylinder drives the top block 10 to push the PCB product out.

[0024] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A pneumatic quick-loading and unloading base for an SMT reflow carrier, characterized in that: It includes two support plates, and a mounting plate is fixed to the top of the two support plates. The upper surface of the mounting plate is provided with a positioning groove composed of four L-shaped guide blocks. A fixture is connected in the positioning groove. The fixture includes a base plate, and the base plate is provided with a mounting groove. The edge of the mounting groove is provided with multiple clearance grooves. Clamping components are provided on both adjacent sides of the mounting groove. A top material hole is provided in the mounting groove. A top material component is provided on the mounting plate facing the top material hole.

2. The SMT reflow carrier pneumatic quick-release base according to claim 1, characterized in that: The top material assembly includes a connecting plate vertically disposed on the lower end face of the mounting plate, and a lifting cylinder is provided on the connecting plate. A top block is connected to the top rod of the lifting cylinder, which faces the top material hole.

3. The SMT reflow carrier pneumatic quick-release base according to claim 1, characterized in that: The clamping assembly includes a T-shaped clamping block. The upper surface of the base plate has a first guide groove that matches the vertical portion of the T-shaped clamping block. The lower surface of the base plate, located behind the first guide groove, has a second guide groove that matches the horizontal portion of the T-shaped clamping block. The first and second guide grooves are connected. The horizontal portion of the T-shaped clamping block is slidably connected within the second guide groove. The vertical portion of the T-shaped clamping block extends into the first guide groove from the connecting portion. The end of the vertical portion of the T-shaped clamping block has a tapered clamping head, the upper surface of which is higher than... On the upper end face of the vertical portion of the T-shaped clamping block, the end of the first guide groove is provided with a conical notch that connects to the mounting groove. The clamping head extends into the mounting groove, and the mounting groove is provided with a clamping head clearance groove. A spring receiving groove perpendicular to the first guide groove is provided at the middle position. A forked spring is installed in the spring receiving groove. The head of the forked spring abuts against the side wall of the clamping head, and the two ends of the forked spring abut against the inner wall of the spring receiving groove. The forked spring is in a compressed state. A drive assembly for driving the T-shaped clamping block to slide is connected to the mounting plate.

4. The SMT reflow carrier pneumatic quick-release base according to claim 3, characterized in that: The driving assembly includes a second cylinder disposed on the lower end face of the mounting plate parallel to the sliding direction of the T-shaped clamp. A connecting block is provided on the push rod of the second cylinder, and a protrusion is provided on the upper end face of the connecting block. A first through groove is provided on the mounting plate, and the protrusion extends into the first through groove. A second through groove along the length direction is provided on the vertical portion of the T-shaped clamp behind the bifurcated spring. A third through groove is provided in the first guide groove behind the spring receiving groove. A push block is provided on the upper end face of the protrusion, and the push block extends into the second through groove through the third through groove.

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