Adjustable tin furnace jig

Abstract

The utility model discloses an adjustable tin furnace jig, which relates to the technical field of tin furnace jigs and comprises a bottom frame, a mounting frame is fixedly mounted at the upper end of the bottom frame, an adjusting mechanism is arranged on the inner side of the mounting frame, and an adjusting block is fixedly mounted on the outer side of the adjusting mechanism. By the adoption of the structure, the crank below the bottom frame is operated, so that the rotating rod connected with the crank drives the second bevel gear to be in meshed transmission with the first bevel gear in the middle of the driving rod, and the first bevel gears at the two ends are in synchronous meshed transmission with the third bevel gear through rotation of the driving rod; rotation of a third bevel gear enables two screws to synchronously rotate in a side groove of the mounting frame, due to rotation of the screws, moving blocks in threaded connection with the outer sides slide in the side groove, meanwhile, the opposite faces of the moving blocks and the same adjusting block are mounted, the moving blocks can drive the adjusting block to move on the bottom frame, and the adjusting block can move on the bottom frame; therefore, adjustment and use can be conveniently carried out according to PCBs of various different specifications.

Description

Technical Field

[0001] This utility model belongs to the technical field of soldering furnace fixtures, and specifically relates to an adjustable soldering furnace fixture. Background Technology

[0002] A reflow soldering fixture is a new type of PCB fixture designed for SMT (Surface Mount Technology) processing. It is suitable for various PCBs with SMD components on the solder side of the through-hole components. As we all know, PCBs play an extremely important role in electrical appliances as electronic components. They are both the support for electronic components and the platform for electrical connection of electronic components. When soldering electronic components onto the PCB, the reflow soldering fixture plays a role in supporting and fixing the PCB to facilitate soldering.

[0003] Currently, the specifications and dimensions of most existing solder reflow fixtures are fixed and cannot be adjusted. Therefore, the PCB capacity of each fixture cannot be adjusted according to actual needs. As a result, in practical applications, more costs need to be incurred to prepare solder reflow fixtures of various specifications to cope with different quantities of PCB processing. Of course, there are some adjustable solder reflow fixtures on the market, but these fixtures are mainly adjusted by screws. Each adjustment requires the use of special tools to loosen or tighten them, which is not very convenient to use. Utility Model Content

[0004] In view of the problems mentioned in the background art, the purpose of this utility model is to provide an adjustable tin-filling fixture to solve the problems mentioned in the background art.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] An adjustable soldering pot fixture includes a base frame, an mounting frame fixedly installed on the upper end of the base frame, an adjustment mechanism provided on the inner side of the mounting frame, an adjustment block fixedly installed on the outer side of the adjustment mechanism, a mating groove opened on the upper end of the adjustment block, a placement groove opened on the upper end of the base frame, and locking mechanisms symmetrically provided on the outer sides of both the adjustment block and the base frame.

[0007] The adjustment mechanism includes side grooves symmetrically located on the outer side of the mounting frame. A screw is rotatably connected to the inner side of the side groove, and a moving block is threadedly connected to the outer side of the screw. The moving block is slidably connected to the inner side of the side groove, and the opposite face of the moving block is fixedly installed with the adjustment block. An installation cavity is provided on the inner side of the mounting frame, and a drive rod is rotatably connected to the inner side of the installation cavity. A third bevel gear is fixedly installed at one end of the screw inside the installation cavity, and a first bevel gear is fixedly installed on the outer side of the drive rod. The first and third bevel gears at the left and right ends of the drive rod are meshed. A rotating rod is rotatably connected to the inner side of the mounting cavity, and a second bevel gear is fixedly installed at the upper end of the rotating rod. The second bevel gear and the first bevel gear in the middle of the drive rod are meshed. A crank handle is fixedly installed at the lower end of the rotating rod, penetrating the bottom end of the base frame.

[0008] The locking mechanism includes a movable block, one end of which is rotatably connected to the outside of an adjusting block or a bottom frame. An assembly cavity is formed on the inner side of the movable block, and a limit block is slidably connected to the inner side of the assembly cavity. A lifting rod is fixedly connected to the upper end of the limit block, and a lifting knob is fixedly installed on the upper end of the lifting rod through the upper cavity wall of the assembly cavity. A pressure block is fixedly installed on the lower end of the limit block, and the side of the pressure block away from the limit block slidably through the lower cavity wall of the assembly cavity. A spring is sleeved on the outer side of the lifting rod.

[0009] As a preferred technical solution, the inner side of the assembly cavity is symmetrically provided with sliding grooves, and the limiting block and the sliding groove of the assembly cavity are slidably connected.

[0010] As a preferred technical solution, a shaft column is fixedly installed on the outer side of the adjusting block or the bottom frame, a limit head is fixedly installed on the upper end of the shaft column, and one end of the movable block is rotatably connected to the outer side of the shaft column.

[0011] As a preferred technical solution, the lower end of the base frame is provided with a groove, and the lower end of the rotating rod extends into the groove and is fixedly installed with the crank handle.

[0012] As a preferred technical solution, connecting blocks are fixedly installed on the opposite sides of the movable block, and connecting holes are opened on the inner side of the connecting blocks. The connecting blocks are fixedly installed to the adjusting blocks by screws passing through the connecting holes.

[0013] As a preferred technical solution, a screw hole is provided on the inner side of the movable block, and the movable block is threadedly connected to the outer side of the screw rod through the screw hole.

[0014] In summary, the present invention has the following main advantages:

[0015] First, operate the crank handle below the bottom frame, causing the rotating rod connected to the crank handle to drive the second bevel gear to mesh with the first bevel gear in the middle of the drive rod. The rotation of the drive rod causes the first bevel gears at both ends to simultaneously mesh with the third bevel gear. The rotation of the third bevel gear causes the two screws to rotate synchronously in the side groove of the mounting frame. Due to the rotation of the screws, the moving block connected to the outer thread slides in the side groove. At the same time, the opposite face of the moving block is installed with the same adjustment block, so that the moving block can drive the adjustment block to move on the bottom frame. This allows for convenient adjustment according to various PCB boards of different specifications, thus greatly reducing the company's investment expenditure. Moreover, no auxiliary equipment is required during the adjustment process, and the operation process is simple and convenient.

[0016] Second, place the PCB board in the placement slot and mating slot, and then rotate the movable block by lifting the knob. When the pressure block is on the adjusting block or the bottom frame, the lifting knob drives the limit block to slide in the assembly cavity of the movable block through the lifting rod, so that the limit block compresses the spring on the lifting rod. When the movable block rotates, so that its pressure block is above the mating slot or the corresponding placement slot, the elastic action of the spring will make the pressure block press the PCB board tightly in the placement slot and mating slot. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the mounting cavity of this utility model;

[0019] Figure 3 This is a schematic diagram of the bottom structure of the bottom frame of this utility model;

[0020] Figure 4 This is a schematic diagram of the locking mechanism of this utility model.

[0021] Reference numerals: 1. Base frame; 2. Placement slot; 4. Mating slot; 5. Adjustment mechanism; 501. Side slot; 502. Screw; 503. Moving block; 504. Mounting cavity; 505. First bevel gear; 506. Second bevel gear; 507. Rotating rod; 508. Drive rod; 509. Third bevel gear; 5010. Handle; 6. Mounting frame; 7. Screw hole; 8. Connecting block; 9. Connecting hole; 10. Adjustment block; 11. Locking mechanism; 111. Moving block; 112. Assembly cavity; 113. Lifting rod; 114. Spring; 115. Limiting block; 116. Lifting knob; 117. Pressing block; 12. Groove; 13. Slide groove; 14. Shaft column; 15. Limiting head. Detailed Implementation

[0022] refer to Figures 1 to 4The adjustable soldering pot fixture described in this embodiment includes a base frame 1, an mounting frame 6 fixedly installed on the upper end of the base frame 1, an adjustment mechanism 5 provided on the inner side of the mounting frame 6, and an adjustment block 10 fixedly installed on the outer side of the adjustment mechanism 5. A mating groove 4 is provided on the upper end of the adjustment block 10, and a placement groove 2 is provided on the upper end of the base frame 1. Locking mechanisms 11 are symmetrically provided on the outer sides of both the adjustment block 10 and the base frame 1. The adjustment mechanism 5 drives the adjustment block 10 to move and adjust on the base frame 1, so that the mating groove 4 on the adjustment block 10 matches the placement groove 2 on the base frame 1, allowing for the placement of various PCB boards of different specifications.

[0023] The adjusting mechanism 5 includes a side groove 501, which is symmetrically opened on the outside of the mounting frame 6. A screw 502 is rotatably connected to the inside of the side groove 501, and a moving block 503 is threadedly connected to the outside of the screw 502. The moving block 503 is slidably connected to the inside of the side groove 501, and the opposite face of the moving block 503 is fixedly installed with the adjusting block 10. A mounting cavity 504 is opened on the inside of the mounting frame 6, and a drive rod 508 is rotatably connected to the inside of the mounting cavity 504. One end of the screw 502 extends into the inside of the mounting cavity 504 and is fixedly installed with a third cone. A first bevel gear 505 is fixedly mounted on the outer side of gear 509 and drive rod 508. The first bevel gear 505 and the third bevel gear 509 at the left and right ends of drive rod 508 are meshed. A rotating rod 507 is rotatably connected to the inner side of mounting cavity 504. A second bevel gear 506 is fixedly mounted on the upper end of rotating rod 507. The second bevel gear 506 and the first bevel gear 505 in the middle of drive rod 508 are meshed. A crank handle 5010 is fixedly mounted on the bottom end of rotating rod 507 through the bottom frame 1. When using adjustment mechanism 5... During adjustment, simply operate the crank 5010 below the bottom frame 1 according to the PCB board specifications. This will cause the rotating rod 507 connected to the crank 5010 to drive the second bevel gear 506 to mesh with the first bevel gear 505 in the middle of the drive rod 508. The rotation of the drive rod 508 will cause the first bevel gears 505 at both ends to simultaneously mesh with the third bevel gear 509. The rotation of the third bevel gear 509 will cause the two screws 502 to rotate synchronously in the side groove 501 of the mounting frame 6. Due to the rotation of the screws 502, The movable block 503 with the outer threaded connection slides in the side groove 501. At the same time, the opposite face of the movable block 503 is installed with the same adjusting block 10, so that the movable block 503 can drive the adjusting block 10 to move on the bottom frame 1. This allows for convenient adjustment according to various PCB boards of different specifications, thus greatly reducing the company's investment expenditure. A scale is also attached above the mounting frame 6. During adjustment, the jig can be used to measure the PCB board through the scale, and then the position of the adjusting block 10 can be adjusted according to the measured position.

[0024] The locking mechanism 11 includes a movable block 111. One end of the movable block 111 is rotatably connected to the outside of the adjusting block 10 or the bottom frame 1. An assembly cavity 112 is provided on the inner side of the movable block 111. A limit block 115 is slidably connected to the inner side of the assembly cavity 112. A lifting rod 113 is fixedly connected to the upper end of the limit block 115. A lifting button 116 is fixedly installed on the upper end of the lifting rod 113 through the upper cavity wall of the assembly cavity 112. A pressure block 117 is fixedly installed on the lower end of the limit block 115. The side of the pressure block 117 away from the limit block 115 slides through the lower cavity wall of the assembly cavity 112. A spring 114 is sleeved on the outer side of the lifting rod 113. The movable block 111 rotates on the corresponding adjusting block 10 or the bottom frame 1 via one side. During operation, the PCB board is placed in the placement slot 2 and the mating slot 4. Then, the movable block 111 is rotated by lifting button 116. Since the pressure block 117 is on the adjusting block 10 or the bottom frame 1, the spring 114 rotates on the outside of the lifting rod 113. When the lifting button 116 is used to drive the lifting rod 113 to move the limiting block 115 in the assembly cavity 112 of the movable block 111, the limiting block 115 compresses the spring 114 on the lifting rod 113. When the movable block 111 rotates, its pressing block 117 is positioned above the mating groove 4 or the corresponding placement groove 2. Under the elastic action of the spring 114, the pressing block 117 presses the PCB board tightly in the placement groove 2 and the mating groove 4. Currently, most locking structures on the market are external spring 114 structures. If impurities get stuck in the gap of the spring 114 during use, the locking structure cannot be used. In addition, in the locking structures on the market, the spring 114 is generally located between the locking block and the limiting seat of the rotating shaft. When the locking block is pulled and rotated, improper operation of the end of the spring 114 can easily damage the spring 114. However, the locking mechanism 11 in this solution will not have such a problem.

[0025] refer to Figure 4 The inner side of the assembly cavity 112 is symmetrically provided with sliding grooves 13. The limiting block 115 and the sliding grooves 13 of the assembly cavity 112 are slidably connected. The limiting plate can slide in the assembly cavity 112 through the sliding grooves 13 provided in the inner side of the assembly cavity 112.

[0026] refer to Figure 4 A shaft column 14 is fixedly installed on the outer side of the adjusting block 10 or the bottom frame 1. A limit head 15 is fixedly installed on the upper end of the shaft column 14. One end of the movable block 111 is rotatably connected to the outer side of the shaft column 14. By installing the shaft column 14 with the limit head 15 on the adjusting block 10 or the bottom frame 1, the movable block 111 can rotate on the shaft column 14.

[0027] refer to Figure 3The bottom of the base frame 1 has a groove 12. The bottom end of the rotating rod 507 extends into the groove 12 and is fixedly installed with the crank handle 5010. By opening the groove 12 at the bottom of the base frame 1, the crank handle 5010 is installed into the groove 12 so that the crank handle 5010 does not protrude, thus not affecting the processing.

[0028] refer to Figure 1 Connecting blocks 8 are fixedly installed on the opposite sides of the movable block 503. Connecting holes 9 are provided on the inner side of the connecting blocks 8. The connecting blocks 8 are fixedly installed with the adjusting block 10 by screws passing through the connecting holes 9. By installing the connecting blocks 8 with connecting holes 9 on the opposite sides of the movable block 503, the movable block 503 and the adjusting block 10 can be easily connected and installed.

[0029] refer to Figure 1 The inner side of the movable block 503 is provided with a screw hole 7. The movable block 503 is threadedly connected to the outer side of the screw rod 502 through the screw hole 7. By providing a screw hole 7 on the inner side of the movable block 503, the movable block 503 can be threadedly connected to the outer side of the screw rod 502.

[0030] Operating principle and advantages: During use, when adjusting using the adjustment mechanism 5, simply operate the crank 5010 below the bottom frame 1 according to the specifications of the PCB board. This will cause the rotating rod 507 connected to the crank 5010 to drive the second bevel gear 506 to mesh with the first bevel gear 505 in the middle of the drive rod 508. The rotation of the drive rod 508 will cause the first bevel gears 505 at both ends to mesh with the third bevel gear 509. The rotation of the third bevel gear 509 will cause the two screws 502 to rotate synchronously in the side groove 501 of the mounting frame 6. Due to the rotation of the screws 502, the moving block 503 connected to the outer thread will slide in the side groove 501. At the same time, the opposite face of the moving block 503 is installed with the same adjustment block 10, so that the moving block 503 can drive the adjustment block 10 to move and adjust on the bottom frame 1.

[0031] During operation, the PCB board is placed in the placement slot 2 and the mating slot 4. Then, the movable block 111 is rotated by the lifting button 116. When the pressure block 117 is on the adjusting block 10 or the bottom frame 1, the lifting button 116 drives the limiting block 115 to slide in the assembly cavity 112 of the movable block 111 through the lifting rod 113. This causes the limiting block 115 to compress the spring 114 on the lifting rod 113. When the movable block 111 rotates, the pressure block 117 is placed above the mating slot 4 or the corresponding placement slot 2. Under the elastic action of the spring 114, the pressure block 117 will press the PCB board firmly in the placement slot 2 and the mating slot 4.

Claims

1. An adjustable tin furnace fixture, characterized by, The utility model provides a kind of adjustable frame, including bottom frame (1), the upper end of the bottom frame (1) is fixedly installed with installation frame (6), the inner side of the installation frame (6) is equipped with adjusting mechanism (5), the outer side of the adjusting mechanism (5) is fixedly installed with adjusting block (10), the upper end of the adjusting block (10) is equipped with cooperation groove (4), the upper end of the bottom frame (1) is equipped with placing groove (2), the outer side of the adjusting block (10) and bottom frame (1) is symmetrically equipped with locking mechanism (11); The adjusting mechanism (5) includes side groove (501), the side groove (501) is symmetrically provided on the outer side of the installation frame (6), the inner side of the side groove (501) is rotatably connected with a screw rod (502), the outer side of the screw rod (502) is threadedly connected with a moving block (503), the moving block (503) is slidably connected to the inner side of the side groove (501), the opposite surface of the moving block (503) is fixedly installed with the adjusting block (10), the inner side of the installation frame (6) is provided with an installation cavity (504), the inner side of the installation cavity (504) is rotatably connected with a drive rod (508), one end of the screw rod (502) extends into the inner side of the installation cavity (504) and is fixedly installed with a third bevel gear (509), the outer side of the drive rod (508) is fixedly installed with a first bevel gear (505), the first bevel gears (505) and the third bevel gears (509) on the left and right of the drive rod (508) are meshingly connected, the inner side of the installation cavity (504) is rotatably connected with a rotating rod (507), the upper end of the rotating rod (507) is fixedly installed with a second bevel gear (506), the second bevel gear (506) and the first bevel gear (505) in the middle of the drive rod (508) are meshingly connected, and the lower end of the rotating rod (507) penetrates through the bottom end of the bottom frame (1) and is fixedly installed with a crank handle (5010).

2. The adjustable tin pot jig of claim 1, wherein: The locking mechanism (11) includes a movable block (111), one end of the movable block (111) is rotatably connected to the outer side of the adjusting block (10) or the bottom frame (1), the inner side of the movable block (111) is provided with an assembly cavity (112), the inner side of the assembly cavity (112) is slidably connected with a limiting block (115), the upper end of the limiting block (115) is fixedly connected with a lifting rod (113), the upper end of the lifting rod (113) slidably penetrates through the upper end cavity wall of the assembly cavity (112) and is fixedly installed with a lifting button (116), the lower end of the limiting block (115) is fixedly installed with a pressing block (117), the side, away from the limiting block (115), of the pressing block (117) slidably penetrates through the lower end cavity wall of the assembly cavity (112), and the outer side of the lifting rod (113) is sleeved with a spring (114).

3. The adjustable tin pot fixture of claim 2, wherein: The inner side of the assembly cavity (112) is symmetrically provided with a sliding groove (13), and the limiting block (115) and the sliding groove (13) of the assembly cavity (112) are slidably connected.

4. The adjustable tin pot fixture of claim 2, wherein: The outer side of the adjusting block (10) or the bottom frame (1) is fixedly installed with a shaft column (14), the upper end of the shaft column (14) is fixedly installed with a limiting head (15), and one end of the movable block (111) is rotatably connected to the outer side of the shaft column (14).

5. The adjustable tin furnace fixture of claim 1, wherein: The lower end of the bottom frame (1) is provided with a recess (12), and the lower end of the rotating rod (507) extends into the recess (12) and is fixedly installed with a handle (5010).

6. The adjustable tin furnace fixture of claim 1, wherein: Opposite surfaces of the moving block (503) are fixedly installed with connecting blocks (8), the inner side of the connecting block (8) is provided with a connecting hole (9), and the connecting block (8) is fixedly installed with an adjusting block (10) through the connecting hole (9).

7. The adjustable tin furnace fixture of claim 1, wherein: The inner side of the moving block (503) is provided with a screw hole (7), and the moving block (503) is threadedly connected to the outer side of the screw rod (502) through the screw hole (7).

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