Width-adjusting suspension track structure of reflow soldering equipment

Abstract

The utility model discloses a width-adjusting suspension track structure of reflow soldering equipment. The width-adjusting suspension track structure comprises a suspension rod I and a supporting mechanism, the right end of the first hanging rod is fixedly connected with a connecting sleeve, a second hanging rod is inserted into the outer portion of the connecting sleeve, the left end of the first hanging rod and the right end of the second hanging rod are fixedly connected with mounting bases, and the middle of the first hanging rod and the right end of the second hanging rod are fixedly sleeved with connecting bases. The supporting mechanism comprises an ejection assembly, a base, sliding grooves and a top plate, the ejection assembly is arranged in the connecting sleeve, the base is arranged at the right end of the ejection assembly, the sliding grooves which are evenly distributed are formed in the outer arc face of the base, the bottom walls of the sliding grooves incline towards the exterior of a center shaft of the base from left to right, and the top plate is slidably connected into the sliding grooves. Arc-shaped plates are arranged at the ends, away from the base center shaft, of the top plates. According to the width-adjusting suspension track structure of the reflow soldering equipment, a thermal expansion gap is reserved in a manner of inserting the suspension rods, so that the positions of the two fixing plates are kept unchanged.

Description

Technical Field

[0001] This utility model relates to the technical field of reflow soldering equipment, specifically to a reflow soldering equipment adjustable suspension track structure. Background Technology

[0002] Reflow soldering technology is familiar in the electronics manufacturing industry. Components on various circuit boards used in our computers are soldered to the circuit boards using this process. This equipment has an internal heating circuit that heats air or nitrogen to a sufficiently high temperature and blows it onto the circuit board where the components have been attached, melting the solder on both sides of the components and bonding them to the motherboard. The advantages of this process are that the temperature is easy to control, oxidation can be avoided during the soldering process, and manufacturing costs are easier to control.

[0003] Adjusting the width of the reflow soldering track is a key process control step in SMT (Surface Mount Technology) production. By adjusting the track width, it can accommodate diverse product requirements from small chips to large substrates, ensuring that PCBs of different sizes remain horizontal and stable during transport, and avoiding jamming or dropping of boards due to size mismatch. To keep the track stable, multiple sets of suspension tracks are set in the middle of the reflow soldering equipment, which are suspended by suspension rods. However, when the suspension rods are heated, thermal expansion occurs. Due to the long length of the suspension rods, the deformation is large, causing displacement of the track on the fixed side, which can easily lead to jamming or dropping of boards. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a reflow soldering equipment with a widened suspension track structure. By inserting the suspension rods, a thermal expansion gap is left so that the positions of the two fixed plates remain unchanged, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a reflow soldering equipment adjustable suspension track structure, including a suspension rod and a support mechanism;

[0006] A connecting sleeve is fixedly connected to the right end of the first suspension rod, and a second suspension rod is inserted into the outside of the connecting sleeve. Mounting seats are fixedly connected to the left end of the first suspension rod and the right end of the second suspension rod. Connecting seats are fixedly sleeved on the middle part of the first suspension rod and the right end of the second suspension rod.

[0007] The support mechanism includes an ejector assembly, a base, a slide groove, and a top plate. The ejector assembly is installed inside the connecting sleeve. The base is installed at the right end of the ejector assembly. The outer arc surface of the base has evenly distributed slide grooves. The bottom wall of each slide groove is inclined from left to right towards the outside of the central axis of the base. The top plate is slidably connected inside each slide groove. The end of the top plate away from the central axis of the base is provided with an arc plate. The outer arc surface of the arc plate is slidably connected to the inner arc surface of the second suspension rod. A thermal expansion gap is left by inserting the suspension rod to keep the position of the two fixed plates unchanged.

[0008] Furthermore, the ejection assembly includes a second spring seat and a top block. The right side of the second spring seat is provided with evenly distributed top blocks. The outer arc surface of the top blocks is slidably connected to the interior of adjacent slide grooves. The right side of the top blocks contacts the left side of the top plate located in the same slide groove, thereby pushing the top plate.

[0009] Furthermore, the ejection assembly also includes a spring seat, a spring, and a recessed hole. A fixing bolt is threadedly connected to the middle of the left side of the base. The spring seat, spring, and spring seat are all movably sleeved on the outside of the fixing bolt. Recessed holes are opened on the opposite inner sides of the spring seat and spring seat. The spring is located between the two recessed holes. The right end of the fixing bolt contacts the bottom wall of the connecting sleeve and presses against the spring seat.

[0010] Furthermore, the support mechanism also includes limiting grooves and limiting strips. Limiting grooves are provided on the side walls of the slide, and limiting strips are provided on the side of the top plate near the side wall of the slide. The limiting strips are slidably connected to the interior of adjacent limiting grooves to prevent the top plate from detaching from the slide.

[0011] Furthermore, the support mechanism also includes a blocking plate, and the right end of the base is fixedly connected to the blocking plate. The top plate is located on the left side of the blocking plate to prevent the top plate from sliding out from the right side of the slide groove.

[0012] Furthermore, it also includes a fixing bolt one, which passes through the through hole one of the plug plate, the through hole two of the base, the through hole three of the spring seat two, and the through hole four of the spring seat one in sequence and is threaded to the bottom wall of the connecting sleeve. There are a total of four fixing bolts to fix the position of the parts that make up the whole support mechanism.

[0013] Furthermore, the outer diameter of the connecting sleeve is smaller than the inner diameter of the second suspension rod by -mm to prevent the second suspension rod from getting stuck.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] When the second suspension rod expands and lengthens due to thermal expansion, the increased length allows it to penetrate deeper into the connecting sleeve. Simultaneously, the inner diameter of the second suspension rod decreases due to thermal expansion, causing the spring's thrust to cancel out the compressive force on the top plate. This ensures that the curved plate of the top plate remains in contact with the inner curved surface of the second suspension rod, providing support and stability. The distance between the two connecting seats remains constant, reducing the occurrence of plate drop and jamming. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a partial cross-sectional view of the suspension rod at one location of the present invention.

[0018] Figure 3 This is an exploded structural diagram of the support mechanism of this utility model;

[0019] Figure 4 This is a cross-sectional structural diagram of the base of this utility model.

[0020] In the diagram: 1 Suspension rod one, 2 Suspension rod two, 3 Mounting seat, 4 Connecting sleeve, 5 Support mechanism, 51 Ejection assembly, 511 Spring seat one, 512 Spring, 513 Embedded hole, 514 Spring seat two, 515 Top block, 52 Base, 53 Slide groove, 54 Limiting groove, 55 Top plate, 56 Limiting strip, 57 Blocking plate, 6 Fixing bolt one, 7 Connecting seat, 8 Fixing bolt two. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 This embodiment provides a technical solution: a reflow soldering equipment adjustable suspension track structure, including a suspension rod 1 and a support mechanism 5; a connecting sleeve 4 is fixedly connected to the right end of the suspension rod 1, a suspension rod 2 is inserted into the outside of the connecting sleeve 4, a mounting seat 3 is fixedly connected to the left end of the suspension rod 1 and the right end of the suspension rod 2, a connecting seat 7 is fixedly sleeved on the middle part of the suspension rod 1 and the right end of the suspension rod 2, and the outer diameter of the connecting sleeve 4 is 1-2 mm smaller than the inner diameter of the suspension rod 2.

[0023] The support mechanism 5 includes an ejector assembly 51, a base 52, a slide groove 53, and a top plate 55. The ejector assembly 51 is installed inside the connecting sleeve 4. The base 52 is installed at the right end of the ejector assembly 51. The outer arc surface of the base 52 is provided with evenly distributed slide grooves 53. The bottom wall of the slide grooves 53 is inclined from left to right towards the outside of the central axis of the base 52. The top plate 55 is slidably connected inside the slide grooves 53. The end of the top plate 55 away from the central axis of the base 52 is provided with an arc plate. The outer arc surface of the arc plate is slidably connected to the inner arc surface of the suspension rod 2.

[0024] The ejection assembly 51 includes a second spring seat 514 and a top block 515. The right side of the second spring seat 514 is provided with evenly distributed top blocks 515. The outer arc surface of the top blocks 515 is slidably connected to the interior of the adjacent slide grooves 53. The right side of the top blocks 515 is in contact with the left side of the top plate 55 located in the same slide groove 53. The ejection assembly 51 also includes a first spring seat 511, a spring 512 and a recessed hole 513. The middle of the left side of the base 52 is threaded with a second fixing bolt 8. The first spring seat 511, the spring 512 and the second spring seat 514 are all movably sleeved on the outside of the second fixing bolt 8. The inner sides of the first spring seat 511 and the second spring seat 514 are provided with recessed holes 513. The spring 512 is located between the two recessed holes 513. The right end of the second fixing bolt 8 is in contact with the bottom wall of the connecting sleeve 4.

[0025] The support mechanism 5 also includes a limiting groove 54 and a limiting strip 56. The side walls of the slide 53 are all provided with limiting grooves 54, and the side of the top plate 55 near the side wall of the slide 53 is provided with limiting strips 56. The limiting strips 56 are slidably connected to the interior of the adjacent limiting grooves 54. The support mechanism 5 also includes a blocking plate 57. The right end of the base 52 is fixedly connected to the blocking plate 57, and the top plate 55 is located on the left side of the blocking plate 57.

[0026] Among them, there are also four fixing bolts 6. The fixing bolts 6 pass through the through hole 1 of the blocking plate 57, the through hole 2 of the base 52, the through hole 3 of the spring seat 2 514 and the through hole 4 of the spring seat 1 511 and are threaded to the bottom wall of the connecting sleeve 4. There are a total of four fixing bolts 6.

[0027] The working principle of this utility model is as follows:

[0028] Suspension rod 1 and suspension rod 2 are respectively installed inside the reflow soldering equipment via mounting base 3. A floating seat is installed on the outside of suspension rod 2. The lower ends of the floating seat and the connecting seat 7 are both engaged with rails. Adjusting the position of the floating seat allows for adjustment of the width between two adjacent rails.

[0029] When the reflow soldering equipment is running, the heated air or nitrogen melts the solder paste, and the internal components expand due to heat. The thermal expansion deformation of smaller components is very small and has almost no impact, but the second suspension rod 2 is longer and deforms more, and its length increases after thermal expansion. At the same time, its inner diameter decreases due to thermal expansion. Since the outer diameter of the connecting sleeve 4 is 1-2mm smaller than the inner diameter of the second suspension rod 2, the outer diameter of the connecting sleeve 4 never contacts the second suspension rod 2, which avoids the inner diameter of the second suspension rod 2 from excessively shrinking and getting stuck on the outer arc surface of the connecting sleeve 4. The left end of the second suspension rod 2 is inserted into the outside of the connecting sleeve 4. The increased length of the second suspension rod 2 after thermal expansion deformation allows the second suspension rod 2 to be inserted deeper into the outside of the connecting sleeve 4, so that the positions of the two connecting seats 7 remain unchanged.

[0030] After assembly, spring 512 remains compressed. Fixing bolt 6 fixes the position of the components that make up the support mechanism 5 and generates a reaction force on spring seat 511 and spring seat 514. Spring seat 511 contacts the head of fixing bolt 8 and remains in the same position. Spring seat 514 is pushed to the right. At the same time, top plate 55 moves away from the central axis of base 52. Top block 515 pushes top plate 55 located inside the same slide groove 53 to the right, causing top plate 55 to slide to the right inside slide groove 53.

[0031] When the inner diameter of the second suspension rod 2 decreases due to thermal expansion, the arc plate of the top plate 55 is compressed, and the top plate 55 slides to the left inside the slide groove 53. The bottom wall of the slide groove 53 is inclined from left to right towards the outside of the central axis of the base 52. At the same time, the top plate 55 moves closer to the central axis of the base 52. The thrust of the spring 512 and the compressive force on the top plate 55 cancel each other out, so that the arc plate of the top plate 55 always keeps in contact with the inner arc surface of the second suspension rod 2, providing support for the second suspension rod 2 and preventing the second suspension rod 2 from shaking.

[0032] When the top plate 55 slides inside the slide groove 53, the limiting strip 56 slides synchronously inside the adjacent limiting groove 54 to prevent the top plate 55 from leaving the slide groove 53. The blocking plate 57 blocks the right side of the slide groove 53 to prevent the top plate 55 from sliding out from the right side of the slide groove 53.

[0033] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A reflow soldering equipment adjustable suspension track structure, characterized in that: It includes a suspension rod (1) and a support mechanism (5); The right end of the first suspension rod (1) is fixedly connected to a connecting sleeve (4), and the outside of the connecting sleeve (4) is connected to a second suspension rod (2). The left end of the first suspension rod (1) and the right end of the second suspension rod (2) are both fixedly connected to a mounting seat (3), and the middle part of the first suspension rod (1) and the right end of the second suspension rod (2) are both fixedly fitted with a connecting seat (7). The support mechanism (5) includes an ejector assembly (51), a base (52), a slide groove (53), and a top plate (55). The ejector assembly (51) is provided inside the connecting sleeve (4). The base (52) is provided at the right end of the ejector assembly (51). The outer arc surface of the base (52) is provided with evenly distributed slide grooves (53). The bottom wall of the slide grooves (53) is inclined from left to right towards the outside of the central axis of the base (52). The top plate (55) is slidably connected inside the slide grooves (53). The end of the top plate (55) away from the central axis of the base (52) is provided with an arc plate. The outer arc surface of the arc plate is slidably connected to the inner arc surface of the second suspension rod (2).

2. The reflow soldering equipment adjustable suspension track structure according to claim 1, characterized in that: The ejection assembly (51) includes a second spring seat (514) and a top block (515). The right side of the second spring seat (514) is provided with evenly distributed top blocks (515). The outer arc surfaces of the top blocks (515) are slidably connected to the interior of adjacent slide grooves (53). The right side of the top blocks (515) is in contact with the left side of the top plate (55) located in the same slide groove (53).

3. The reflow soldering equipment adjustable suspension track structure according to claim 2, characterized in that: The ejection assembly (51) also includes a spring seat (511), a spring (512), and a recessed hole (513). A fixing bolt (8) is threadedly connected to the middle of the left side of the base (52). The spring seat (511), spring (512), and spring seat (514) are all movably sleeved on the outside of the fixing bolt (8). The inner sides of the spring seat (511) and spring seat (514) are provided with recessed holes (513). The spring (512) is located between the two recessed holes (513). The right end of the fixing bolt (8) is in contact with the bottom wall of the connecting sleeve (4).

4. The reflow soldering equipment adjustable suspension track structure according to claim 1, characterized in that: The support mechanism (5) also includes a limiting groove (54) and a limiting strip (56). The sidewalls of the slide (53) are provided with limiting grooves (54), and the sidewalls of the top plate (55) near the sidewalls of the slide (53) are provided with limiting strips (56). The limiting strips (56) are slidably connected to the interiors of adjacent limiting grooves (54).

5. The reflow soldering equipment adjustable suspension track structure according to claim 3, characterized in that: The support mechanism (5) also includes a blocking plate (57), and the right end of the base (52) is fixedly connected to the blocking plate (57), and the top plate (55) is located on the left side of the blocking plate (57).

6. The reflow soldering equipment adjustable suspension track structure according to claim 5, characterized in that: It also includes a fixing bolt (6), which passes through the through hole one of the blocking plate (57), the through hole two of the base (52), the through hole three of the spring seat two (514) and the through hole four of the spring seat one (511) and is threaded to the bottom wall of the connecting sleeve (4). There are a total of four fixing bolts (6).

7. The reflow soldering equipment adjustable suspension track structure according to claim 1, characterized in that: The outer diameter of the connecting sleeve (4) is 1-2 mm smaller than the inner diameter of the suspension rod (2).

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