An adjustable positioning device for internal welding of a small tin furnace

Abstract

The present invention discloses an adjustable positioning device for internal welding of a small tin furnace, comprising a furnace body, hinged seats are provided on both sides of one end surface of the furnace body, the surface of the hinged seat is hinged with a U-shaped frame, both side surfaces of the U-shaped frame are provided with sliding grooves, both end sides of the sliding grooves are rotatably mounted with rollers, one side surface of the roller is fixedly connected with a cross bar, both end surfaces of the cross bar are fixedly connected with a connecting rod, one end surface of the connecting rod is fixedly mounted with a connecting plate, one end surface of the connecting plate is provided with a transverse adjustment groove, the other end surface of the connecting plate is fixedly mounted with a fixed sleeve, the side surface of the transverse adjustment groove is slidably mounted with a sliding sleeve, the sides of the fixed sleeve and the sliding sleeve are both slidably mounted with sliding rods, and one end surface of the sliding rod is fixedly connected with a clamping block, which can greatly improve the convenience and stability of use and ensure the safety of welding positioning.

Description

Technical Field

[0001] The invention relates to the field of small tin furnaces, and more particularly to an adjustable positioning device for internal welding of a small tin furnace. Background Art

[0002] During the production and partial repair of circuit boards, the pins of components need to be positioned for welding. Generally, a small tin furnace is used for this operation. The circuit board can be directly placed for comprehensive welding, which is highly efficient. In order to ensure safety and stability, a positioning device is required to position the circuit board and then insert it into the solder liquid of the small tin furnace.

[0003] However, the existing small tin furnace positioning devices are mostly simple splint structures, which are positioned separately from the small tin furnace. This not only makes the installation and positioning more troublesome and has poor stability, but is also easily misaligned with the opening of the small tin furnace, resulting in the circuit board being unable to be stably placed in the soldering liquid, affecting operation and causing component pins to be misaligned or fall off, which is not conducive to use. In addition, during operation, the surface of the soldering liquid is easily oxidized and peeled, which needs to be scraped off separately, which is more troublesome and needs to be improved. Summary of the invention

[0004] In view of the problems existing in the prior art, the purpose of the present invention is to provide an adjustable positioning device for internal welding of a small tin furnace, by hingedly connecting a U-shaped frame on the surface of the furnace body, installing rollers and cross bars in combination with sliding grooves, and then installing a connecting plate, which is conducive to sliding and adjusting the position, and convenient for pushing the external clamping to the inside for welding, which is safe and stable, and the sliding rod and the clamping block are connected by a sleeve, and the spacing of the circuit board can be adjusted to clamp and position the circuit board, which is conducive to installation and use, and convenient for pushing welding, which can greatly improve the convenience and stability of use, and ensure the safety of welding positioning.

[0005] To solve the above problems, the present invention adopts the following technical solutions.

[0006] A positioning device for internal welding of an adjustable small tin furnace comprises a furnace body, hinged seats are provided on both sides of one end surface of the furnace body, a U-shaped frame is hingedly provided on the surface of the hinged seat, sliding grooves are provided on both side surfaces of the U-shaped frame, rollers are rotatably installed on both end sides of the sliding grooves, a cross bar is fixedly connected to one side surface of the roller, a connecting rod is fixedly connected to both end surfaces of the cross bar, a connecting plate is fixedly installed on one end surface of the connecting rod, a transverse adjustment groove is provided on one end surface of the connecting plate, a fixed sleeve is fixedly installed on the other end surface of the connecting plate, a sliding sleeve is slidably installed on the side surface of the transverse adjustment groove, sliding rods are slidably installed on the sides of the fixed sleeve and the sliding sleeve, a clamping block is fixedly connected to one end surface of the sliding rod, and the surface of the clamping block is located at the two end positions of the two side surfaces of the U-shaped frame.

[0007] Furthermore, a support spring is slidably sleeved on one end surface of the sliding rod, and one end surface of the support spring is fixedly connected to one end surface of the fixed sleeve and the sliding sleeve. By connecting the support spring to the sliding rod, the sliding rod can be reset and supported to ensure the stability of upward adjustment.

[0008] Furthermore, a pressure plate is fixedly connected to one side surface of the sliding rod, and the pressure plate is located on one side of the connecting plate and has the same length. By installing the pressure plate on the sliding rod, the two sliding rods can be pressed down synchronously, and interference during lateral adjustment can be avoided, which is convenient for operation.

[0009] Furthermore, one side surface of the sliding sleeve is rotatably connected to a rotating block, and one side surface of the rotating block is rotatably installed with a threaded rod. The threaded rod is located on one side of the sliding sleeve. The threaded rod is connected to the rotating block, and the sliding sleeve can be pushed by threaded rotation, which facilitates the adjustment of the spacing for clamping, and is efficient and stable.

[0010] Furthermore, the surface of the threaded rod is threadedly connected to one side of the connecting plate through a threaded hole, a handwheel is fixedly installed on one end surface of the threaded rod, and the surface of the handwheel is rotatably connected to one side surface of the connecting plate. The handwheel is installed through the threaded rod, which facilitates rotation adjustment and avoids interference, and is convenient and efficient.

[0011] Furthermore, a support block is fixedly connected to the middle position of one side surface of the U-shaped frame, and the surface of the support block is slidably connected to the other end surface of the furnace body. The support block is installed by the U-shaped frame to provide stable support and avoid shaking.

[0012] Furthermore, a scraper is fixedly connected to the other side surface of the cross bar, and a scraper groove is provided on one side surface of the scraper. By connecting the scraper with the scraper groove, the oxide on the surface of the welding liquid can be scraped off during pushing, thereby improving the welding quality.

[0013] Furthermore, one end surface of the scraper is located at the front end side of the connecting plate, and the other end side of the scraper is slidably connected to one end side of the furnace body.

[0014] Furthermore, there are two sliding rods and two clamping blocks, which are respectively located at two ends of one side surface of the connecting plate.

[0015] Furthermore, the U-shaped frame is located at the upper end of the furnace body, and its length is twice the width of the furnace body.

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] (1) This solution hinges a U-shaped frame on the surface of the furnace body, and installs rollers and cross bars in combination with sliding grooves, and then installs a connecting plate, which is conducive to sliding adjustment of the position, and is convenient for pushing it to the inside for welding after external clamping. It is safe and stable, and the sliding rod and the clamping block are connected by a sleeve, and the spacing can be adjusted to clamp and position the circuit board, which is convenient for installation and use, and convenient for pushing welding.

[0018] (2) By connecting the sliding rod to the support spring, the sliding rod can be reset and supported to ensure the stability of upward adjustment.

[0019] (3) By installing the pressure plate through the sliding rod, the two sliding rods can be pressed down synchronously, and interference during lateral adjustment can be avoided, which is convenient for operation.

[0020] (4) The threaded rod is connected by a rotating block, and the sliding sleeve can be pushed by rotating the thread, so that the spacing can be adjusted for clamping, which is efficient and stable.

[0021] (5) The hand wheel is installed through a threaded rod, which is convenient for rotation adjustment and avoids interference, making it convenient and efficient.

[0022] (6) Installing the support block through the U-shaped frame can provide stable support and avoid shaking.

[0023] (7) By connecting a scraper with a scraper groove, the oxide on the surface of the welding liquid can be scraped off during pushing, thereby improving the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a partial schematic diagram of the connection between the cross bar and the U-shaped frame of the present invention;

[0026] Figure 3 A partial cross-sectional view of the connection plate connection of the present invention;

[0027] Figure 4 For the present invention Figure 3 A magnified view of the middle sliding rod connection;

[0028] Figure 5 For the present invention Figure 1 Enlarged view of point B of the connection of the middle scraper.

[0029] Description of the numbers in the figure:

[0030] 1 furnace body, 11 hinge seat, 12 U-shaped frame, 13 sliding groove, 14 roller, 15 cross bar, 16 connecting rod, 17 connecting plate, 18 transverse adjustment groove, 2 fixed sleeve, 21 sliding sleeve, 22 sliding rod, 23 clamping block, 24 supporting spring, 25 pressure plate, 25 rotating block, 27 threaded rod, 28 hand wheel, 29 supporting block, 3 scraper, 31 scraping groove. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0032] See also Figure 1-5 , an adjustable positioning device for internal welding of a small tin furnace, comprising a furnace body 1, see Figure 1 , Figure 2 and Figure 3 The furnace body 1 can heat and melt the welding liquid inside, which is beneficial for the welding of the circuit board. No further details are given. Both sides of the surface of one end of the furnace body 1 are provided with hinged seats 11. The surface of the hinged seat 11 is hinged with a U-shaped frame 12, which can be flipped for inspection and cleaning, which is beneficial for maintenance and use. Both sides of the U-shaped frame 12 are provided with sliding grooves 13. Both end sides of the sliding groove 13 are rollingly installed with rollers 14. One side surface of the roller 14 is fixedly connected with a cross bar 15, which can be connected as a whole for rolling adjustment, which is convenient and efficient and avoids misalignment interference. The two end surfaces of the cross bar 15 are fixedly connected with connecting rods 16, and one end surface of the connecting rod 16 is fixedly installed with A connecting plate 17 is provided with a transverse adjustment groove 18 on one end surface of the connecting plate 17, and a fixed sleeve 2 is fixedly installed on the other end surface of the connecting plate 17. A sliding sleeve 21 is slidably installed on the side of the transverse adjustment groove 18, which can slide back and forth to adjust the spacing, and then move the position with the sliding rod 22 and the clamping block 23, which is conducive to clamping and positioning the circuit board, convenient and stable, and can also be isolated and protected to avoid splashing, safe and efficient, and easy to use. Sliding rods 22 are slidably installed on the sides of the fixed sleeve 2 and the sliding sleeve 21, and a clamping block 23 is fixedly connected to one end surface of the sliding rod 22. The surface of the clamping block 23 is located at both ends of the two side surfaces of the U-shaped frame 12.

[0033] See also Figure 3 and Figure 4 One end surface of the sliding rod 22 is slidably sleeved with a support spring 24, and one end surface of the support spring 24 is fixedly connected to one end surface of the fixed sleeve 2 and the sliding sleeve 21. The sliding rod 22 is connected to the support spring 24, so that the sliding rod 22 can be reset and supported to ensure the stability of the upward adjustment. One side surface of the sliding rod 22 is fixedly connected with a pressure plate 25, which is located on one side of the connecting plate 17 and has the same length. By installing the pressure plate 25 on the sliding rod 22, the two sliding rods 22 can be pressed down synchronously, and interference during lateral adjustment can be avoided, which is convenient for operation.

[0034] See also Figure 4A rotating block 26 is rotatably connected to one side surface of the sliding sleeve 21, and a threaded rod 27 is rotatably installed on one side surface of the rotating block 26. The threaded rod 27 is located at one side of the sliding sleeve 21. The threaded rod 27 is connected by the rotating block 26, and the sliding sleeve can be pushed by threaded rotation, which is convenient for adjusting the spacing for clamping, efficient and stable. The surface of the threaded rod 27 is threadedly connected to one side of the connecting plate 17 through a threaded hole, and a handwheel 28 is fixedly installed on one end surface of the threaded rod 27. The surface of the handwheel 28 is rotatably connected to one side surface of the connecting plate 17. The handwheel 28 is installed through the threaded rod 27, which is conducive to rotation adjustment, avoids interference, and is convenient and efficient.

[0035] See also Figure 1 and Figure 5 A support block 29 is fixedly connected to the middle position of one side surface of the U-shaped frame 12, and the surface of the support block 29 is slidably connected to the other end surface of the furnace body 1. The support block 29 is installed by the U-shaped frame 12, which can be stably supported to avoid shaking. A scraper 3 is fixedly connected to the other side surface of the cross bar 15, and a scraping groove 31 is provided on one side surface of the scraper 3. By connecting the scraper 3 with the scraping groove 31, the oxide on the surface of the welding liquid can be scraped off during pushing, thereby improving the welding quality.

[0036] When in use, the circuit board with the components can be placed between the two clamping blocks 23, and then the hand wheel on one side is rotated to rotate the threaded rod 27, so that the sliding sleeve 21 can be pushed to move the position, and then the sliding rod 22 and the clamping block 23 can be moved to the position, and the spacing between the two clamping blocks 23 can be adjusted, so that both sides of the circuit board can be stably clamped, which is convenient for operation and relatively stable. In this way, it can be connected to one side of the connecting plate 17, and then pushed forward, and the roller 14 is used to roll and support in the sliding groove 13, which is convenient and stable. In this way, the scraper 3 can be pushed to move forward on the surface of the welding liquid, and then the oxides on the surface are pushed through the scraping groove 31 to avoid affecting the welding. At the same time, the connecting plate 17 and the circuit board are moved to the top of the furnace body 1, and then the pressing plate 25 is pushed, and the sliding rods 22 at both ends can be pushed synchronously, and the bottom of the circuit board can be brought into the welding liquid, and then pin welding can be performed, which is convenient for operation, safe and stable, and the connecting plate 17 is shielded and protected, so that there will be no splashing at the welding position, which is relatively safe and conducive to positioning connection and welding.

[0037] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An adjustable positioning device for internal soldering in a small tin furnace, comprising a furnace body (1), characterized in that: The furnace body (1) is provided with hinged seats (11) on both sides of one end surface, a U-shaped frame (12) is hingedly connected to the surface of the hinged seat (11), sliding grooves (13) are provided on both side surfaces of the U-shaped frame (12), rollers (14) are rotatably mounted on both end sides of the sliding grooves (13), a cross bar (15) is fixedly connected to one side surface of the roller (14), connecting rods (16) are fixedly connected to both end surfaces of the cross bar (15), and a connecting plate (16) is fixedly mounted on one end surface of the connecting rod (16). 7), a transverse adjustment groove (18) is provided on one end surface of the connecting plate (17), a fixed sleeve (2) is fixedly installed on the other end surface of the connecting plate (17), a sliding sleeve (21) is slidably installed on the side of the transverse adjustment groove (18), a sliding rod (22) is slidably installed on the side of the fixed sleeve (2) and the sliding sleeve (21), a clamping block (23) is fixedly connected to one end surface of the sliding rod (22), and the surface of the clamping block (23) is located at both ends of the two side surfaces of the U-shaped frame (12); A pressure plate (25) is fixedly connected to one side surface of the sliding rod (22), and the pressure plate (25) is located on one side of the connecting plate (17) and has the same length; a scraper (3) is fixedly connected to the other side surface of the cross bar (15), and a scraper groove (31) is provided on one side surface of the scraper (3); When in use, the circuit board with components is placed between the two clamping blocks (23), and then the sliding sleeve (21) is pushed to move, thereby moving the sliding rod (22) and the clamping block (23), adjusting the distance between the two clamping blocks (23), stably clamping both sides of the circuit board, and then pushing the connecting plate (17) forward, and supporting the roller (14) in the sliding groove (13), pushing the scraper (3) forward on the surface of the welding liquid, and then pushing the oxides gathered on the surface through the scraper groove (31) to avoid affecting the welding, and at the same time, moving the connecting plate (17) and the circuit board to the top of the furnace body (1), and then pushing the pressing plate (25), and simultaneously pushing the sliding rods (22) at both ends, and bringing the bottom of the circuit board into the welding liquid, and then performing pin welding.

2. The adjustable positioning device for internal welding of a small tin furnace according to claim 1, characterized in that: One end surface of the sliding rod (22) is slidably sleeved with a support spring (24), and one end surface of the support spring (24) is fixedly connected to one end surface of the fixed sleeve (2) and the sliding sleeve (21).

3. The adjustable positioning device for internal welding of a small tin furnace according to claim 1, characterized in that: A rotating block (26) is rotatably connected to one side surface of the sliding sleeve (21), a threaded rod (27) is rotatably mounted on one side surface of the rotating block (26), and the threaded rod (27) is located at one side of the sliding sleeve (21).

4. The adjustable positioning device for internal soldering of a small tin furnace according to claim 3, characterized in that: The surface of the threaded rod (27) is threadedly connected to a side position of the connecting plate (17) through a threaded hole, and a hand wheel (28) is fixedly mounted on one end surface of the threaded rod (27), and the surface of the hand wheel (28) is rotatably connected to a side surface of the connecting plate (17).

5. The adjustable positioning device for internal welding of a small tin furnace according to claim 1, characterized in that: A support block (29) is fixedly connected to the middle position of one side surface of the U-shaped frame (12), and the surface of the support block (29) is slidably connected to the other end surface of the furnace body (1).

6. The adjustable positioning device for internal soldering of a small tin furnace according to claim 1, characterized in that: One end surface of the scraper (3) is located on the front end side of the connecting plate (17), and the other end side of the scraper (3) is slidably connected to one end side of the furnace body (1).

7. The adjustable positioning device for internal welding of a small tin furnace according to claim 1, characterized in that: There are two sliding rods (22) and two clamping blocks (23), which are respectively located at two ends of one side surface of the connecting plate (17).

8. The adjustable positioning device for internal welding of a small tin furnace according to claim 1, characterized in that: The U-shaped frame (12) is located at the upper end of the furnace body (1), and its length is twice the width of the furnace body (1).

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