Welding machine for PCBA production

Abstract

The utility model discloses a welding machine for PCBA (printed circuit board assembly) production, which relates to the technical field of welding machines and comprises a base and vertical rods, the two vertical rods are fixedly arranged on two sides of the upper surface of the base, a sliding rail is fixedly arranged at the upper ends of the two vertical rods, a welding machine body is fixedly arranged on the front side of the sliding rail, and a cylinder is fixedly arranged on the lower side of the welding machine body. A welding head is fixedly arranged at the tail end of a piston rod of the cylinder; the outer wall of the lower end of a piston rod of the air cylinder is fixedly sleeved with a fixing shell, a first annular groove is formed in the lower side of the fixing shell, the inner side of the first annular groove is rotationally sleeved with a rotating shell, a second annular groove is formed in the upper side of the rotating shell, and air blowing pipes are fixedly arranged at the two ends of the lower side of the second annular groove. Fixing shells are fixedly arranged on the two sides of the welding machine body correspondingly, and pistons are slidably arranged in the fixing shells. The welding head can be efficiently cooled, and the welding head is prevented from being damaged due to long-time high-temperature work as much as possible.

Description

Technical Field

[0001] The utility model relates to the technical field of welding machines, in particular to a welding machine for PCBA production. Background Art

[0002] Welding is the process of connecting metal parts using various fusible alloys. The melting point of solder is lower than that of the material being welded, so that the parts can be welded through intermolecular contact on their surface without being melted. When circuit boards are manufactured, their internal circuits need to be welded so that the circuit boards can operate normally.

[0003] After the traditional PCBA production welding machine completes the welding work, the temperature of the welding head will increase. When performing batch PCBA welding production, the welding head will cause long-term high-temperature operation, thereby accelerating the aging speed of the welding head and reducing the service life of the welding head. Utility Model Content

[0004] In view of the above problems existing in the existing PCBA production welding machine, the present utility model is proposed.

[0005] Therefore, the purpose of the utility model is to provide a welding machine for PCBA production, which solves the problem in the prior art that after the welding work is completed, the temperature of the welding head of the welding machine for PCBA production will increase, which will cause the welding head to work at high temperature for a long time during batch PCBA welding production, thereby accelerating the aging speed of the welding head and reducing the service life of the welding head.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A welding machine for PCBA production, comprising a base and a vertical rod, wherein two vertical rods are fixedly arranged on both sides of the upper surface of the base, slide rails are fixedly arranged on the upper ends of the two vertical rods, a welding body is fixedly arranged on the front side of the slide rails, a cylinder is fixedly arranged on the lower side of the welding body, and a welding head is fixedly arranged at the end of the piston rod of the cylinder;

[0008] A fixed shell is fixedly sleeved on the outer wall of the lower end of the piston rod of the cylinder, a first annular groove is provided on the lower side of the fixed shell, a rotating shell is rotatably sleeved on the inner side of the first annular groove, a second annular groove is provided on the upper side of the rotating shell, and air blowing pipes are fixedly provided on both ends of the lower side of the second annular groove;

[0009] An inflatable shell is fixedly provided on both sides of the welding body, a piston is slidably provided inside the inflatable shell, a push rod is fixedly provided on the lower side of the piston, a connecting block is fixedly connected to the lower side of the push rod, one side of the connecting block is fixedly connected to the fixed shell, a connecting pipe is fixedly provided on the upper side of the inflatable shell, one end of the connecting pipe on one side is connected to the fixed shell, a transmission shell is fixedly provided on one side of the upper surface of the fixed shell, and the connecting pipe on the other side is connected to the transmission shell, and a transmission mechanism for driving the rotating shell to rotate is provided on the lower side of the transmission shell.

[0010] Preferably, the transmission mechanism includes a gear and an inner gear ring, the inner gear ring is fixedly sleeved on the inner wall of the rotating shell, a transmission rod is rotatably provided on the inner wall of the fixed shell and located on the lower side of the transmission shell, the gear is fixedly sleeved on the lower end of the transmission rod, the gear is meshingly connected with the inner gear ring, and the upper end of the transmission rod extends to the interior of the transmission shell and is fixedly sleeved with an impeller.

[0011] Preferably, the connecting pipes on both sides are hoses.

[0012] Preferably, both side outer walls of the rotating shell are rotatably connected to the fixed shell via sealed bearings.

[0013] Preferably, the lower ends of the two air blowing pipes are inclined toward the welding head.

[0014] Preferably, a filter screen is fixedly provided on the inner side of the lower end of the air blowing pipe.

[0015] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0016] 1. In the utility model, after the welding of the welding head is completed, the cylinder piston rod contracts to drive the welding head to reset, that is, the push rod pushes the piston to move, so that the piston on one side pushes the gas in the inflatable shell into the connecting pipe, and then flows into the fixed shell, and then blows out from the blowing pipes on both sides to blow air to cool the welding head, so as to prevent the welding head from being damaged due to long-term high-temperature work.

[0017] 2. In the utility model, the gas in the inflation shell is pushed into the connecting pipe through the piston on the other side, and then flows into the transmission shell. The airflow drives the impeller to rotate, so that the transmission rod rotates, the transmission rod drives the gear to rotate, the gear drives the inner gear ring to rotate, so that the rotating shell rotates, and the two blowing pipes rotate and blow air to the welding head, so that the welding head can be more comprehensively cooled by blowing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 This is a structural schematic diagram of a PCBA production welding machine proposed by the utility model;

[0020] Figure 2 for Figure 1 A schematic diagram of the structure of the local A part;

[0021] Figure 3 for Figure 2 A three-dimensional diagram of the connection structure between the fixed shell and the rotating shell.

[0022] Description of reference numerals:

[0023] 1. Base; 2. Vertical rod; 3. Slide rail; 4. Welding body; 5. Cylinder; 6. Welding head; 7. Fixed shell; 8. Rotating shell; 9. Blowing pipe; 10. Connecting block; 11. Inflatable shell; 12. Piston; 13. Push rod; 14. Connecting pipe; 15. Impeller; 16. Transmission shell; 17. Internal gear ring; 18. Gear; 19. Transmission rod. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] The utility model embodiment discloses a welding machine for PCBA production.

[0026] Reference Figure 1-3 A welding machine for PCBA production includes a base 1 and a vertical rod 2. The two vertical rods 2 are fixedly arranged on both sides of the upper surface of the base 1. The upper ends of the two vertical rods 2 are fixedly provided with slide rails 3. The front side of the slide rails 3 is fixedly provided with a welding body 4. The lower side of the welding body 4 is fixedly provided with a cylinder 5. The end of the piston rod of the cylinder 5 is fixedly provided with a welding head 6.

[0027] Reference Figure 1-3The outer wall of the lower end of the piston rod of the cylinder 5 is fixedly sleeved with a fixed shell 7, a first annular groove is provided on the lower side of the fixed shell 7, a rotating shell 8 is rotatably sleeved on the inner side of the first annular groove, a second annular groove is provided on the upper side of the rotating shell 8, and both ends of the lower side of the second annular groove are fixedly provided with blowing pipes 9, the lower ends of the two blowing pipes 9 are inclined toward the welding head 6, which can perform more efficient blowing and heat dissipation on the welding head 6, a filter screen is fixedly provided on the inner side of the lower end of the blowing pipe 9 to prevent foreign matter from entering the interior of the inflatable shell 11 from the blowing pipe 9 as much as possible, and the outer walls on both sides of the rotating shell 8 are rotatably connected to the fixed shell 7 through sealing bearings to improve the sealing between the rotating shell 8 and the fixed shell 7;

[0028] Reference Figure 1-3 An inflatable shell 11 is fixedly provided on both sides of the welding body 4, a piston 12 is slidably provided inside the inflatable shell 11, a push rod 13 is fixedly provided on the lower side of the piston 12, a connecting block 10 is fixedly connected to the lower side of the push rod 13, one side of the connecting block 10 is fixedly connected to the fixed shell 7, a connecting pipe 14 is fixedly provided on the upper side of the inflatable shell 11, one end of the connecting pipe 14 on one side is connected to the fixed shell 7, a transmission shell 16 is fixedly provided on one side of the upper surface of the fixed shell 7, and the connecting pipe 14 on the other side is connected to the transmission shell 16, and the connecting pipes 14 on both sides are hoses, which are convenient for following the movement of the fixed shell 7.

[0029] Reference Figure 1-3 A transmission mechanism for driving the rotating shell 8 to rotate is provided on the lower side of the transmission shell 16, and the transmission mechanism includes a gear 18 and an inner gear ring 17. The inner gear ring 17 is fixedly sleeved on the inner wall of the rotating shell 8, and a transmission rod 19 is rotatably provided on the inner wall of the fixed shell 7 and located at the lower side of the transmission shell 16. The gear 18 is fixedly sleeved on the lower end of the transmission rod 19, and the gear 18 is meshed and connected with the inner gear ring 17. The upper end of the transmission rod 19 extends to the inside of the transmission shell 16 and is fixedly sleeved with an impeller 15. When the impeller 15 rotates, it can drive the transmission rod 19 to rotate, and then drive the gear 18 to rotate. The gear 18 drives the inner gear ring 17 to rotate, that is, it can drive the rotating shell 8 to rotate.

[0030] In the utility model, after the welding of the welding head 6 is completed, the piston rod of the cylinder 5 contracts and drives the welding head 6 to reset, that is, the push rod 13 pushes the piston 12 to move, so that the piston 12 on one side pushes the gas in the inflatable shell 11 into the connecting pipe 14, and then flows into the fixed shell 7, and then blows out from the blowing pipes 9 on both sides, blowing and cooling the welding head 6, and trying to prevent the welding head 6 from being damaged due to long-term high-temperature work. The piston 12 on the other side pushes the gas in the inflatable shell 11 into the connecting pipe 14, and then flows into the transmission shell 16. The airflow drives the impeller 15 to rotate, that is, the transmission rod 19 rotates, the transmission rod 19 drives the gear 18 to rotate, the gear 18 drives the inner gear ring 17 to rotate, that is, the rotating shell 8 rotates, that is, the two blowing pipes 9 rotate and blow air to the welding head 6, that is, the welding head 6 can be blown and cooled more comprehensively.

[0031] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A welding machine for PCBA production, comprising a base (1) and a vertical rod (2), characterized in that: The two vertical rods (2) are fixedly arranged on both sides of the upper surface of the base (1); the upper ends of the two vertical rods (2) are fixedly provided with slide rails (3); the front side of the slide rails (3) is fixedly provided with a welding body (4); the lower side of the welding body (4) is fixedly provided with a cylinder (5); and the end of the piston rod of the cylinder (5) is fixedly provided with a welding head (6); The outer wall of the lower end of the piston rod of the cylinder (5) is fixedly sleeved with a fixed shell (7), the lower side of the fixed shell (7) is provided with a first annular groove, the inner side of the first annular groove is rotatably sleeved with a rotating shell (8), the upper side of the rotating shell (8) is provided with a second annular groove, and both ends of the lower side of the second annular groove are fixedly provided with air blowing pipes (9); An inflatable shell (11) is fixedly provided on both sides of the welding machine body (4), a piston (12) is slidably provided inside the inflatable shell (11), a push rod (13) is fixedly provided on the lower side of the piston (12), a connecting block (10) is fixedly connected to the lower side of the push rod (13), one side of the connecting block (10) is fixedly connected to the fixed shell (7), a connecting pipe (14) is fixedly provided on the upper side of the inflatable shell (11), one end of the connecting pipe (14) is connected to the fixed shell (7), a transmission shell (16) is fixedly provided on one side of the upper surface of the fixed shell (7), and the connecting pipe (14) is connected to the transmission shell (16) on the other side, and a transmission mechanism for driving the rotating shell (8) to rotate is provided on the lower side of the transmission shell (16).

2. The PCBA production welding machine according to claim 1, characterized in that: The transmission mechanism comprises a gear (18) and an inner gear ring (17), wherein the inner gear ring (17) is fixedly sleeved on the inner wall of the rotating shell (8), a transmission rod (19) is rotatably arranged on the inner wall of the fixed shell (7) and located at the lower side of the transmission shell (16), the gear (18) is fixedly sleeved on the lower end of the transmission rod (19), the gear (18) is meshingly connected with the inner gear ring (17), and the upper end of the transmission rod (19) extends to the inside of the transmission shell (16) and is fixedly sleeved on the impeller (15).

3. The PCBA production welding machine according to claim 1, characterized in that: The connecting pipes (14) on both sides are hoses.

4. The PCBA production welding machine according to claim 1, characterized in that: The outer walls on both sides of the rotating shell (8) are rotatably connected to the fixed shell (7) via sealed bearings.

5. The PCBA production welding machine according to claim 1, characterized in that: The lower ends of the two air blowing pipes (9) are both arranged to be inclined toward the welding head (6).

6. The PCBA production welding machine according to claim 1, characterized in that: A filter screen is fixedly arranged on the inner side of the lower end of the air blowing pipe (9).

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