Ball mounting needle welding clamp

Abstract

The utility model relates to a ball mounting needle welding clamp which comprises a carrier plate, a mounting groove is formed in the carrier plate, a lower ball mounting needle limiting plate is arranged above the mounting groove, a plurality of limiting sleeves are arranged on the lower end face of the lower ball mounting needle limiting plate, a cover plate assembly is arranged above the lower ball mounting needle limiting plate, and a plurality of clamping grooves are formed in the lower end face of the cover plate assembly. The cover plate assembly comprises a ball mounting needle baffle, a first upper limiting plate and a second upper limiting plate, the first upper limiting plate and the second upper limiting plate are vertically arranged above the ball mounting needle baffle, a plurality of coaxial limiting holes are formed in the first upper limiting plate and the second upper limiting plate, and the first upper limiting plate and the second upper limiting plate are fixed through pins and nuts. Guide grooves are formed in the two sides of the lower end face of the first upper limiting plate, and the ball mounting needle baffle is connected into the guide grooves in a sliding mode. According to the clamp, the substrate and the ball mounting needle can be respectively positioned in advance through the carrier plate and the cover plate assembly, and then the cover plate assembly with the ball mounting needle is mounted on the carrier plate, so that the working efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chip processing, in particular to a ball implanting needle welding fixture. Background Art

[0002] During the ball planting process, the ball planting needles on the ball planting tool are usually dipped in flux and brushed onto the pads of the printed circuit board, and then the corresponding solder balls are mounted and reflow soldering is performed. The ball planting tool includes a substrate and a plurality of ball planting needles welded on the substrate. The existing ball planting needle welding fixture usually includes a base and a ball planting needle limiting plate arranged on the base. The substrate is arranged in the base, and the ball planting needle limiting plate is provided with ball planting needle limiting holes. During welding, a carrier plate with the substrate is flowed over, and the ball planting needle limiting plate is installed on the carrier plate. The ball planting needles are inserted into the ball planting needle limiting plate one by one. The above actions can only be completed one by one, the operation is cumbersome, and the efficiency is low. Therefore, the utility model proposes a ball planting needle welding fixture. Utility Model Content

[0003] The main purpose of the utility model is to provide a ball planting needle welding fixture, which can pre-position the substrate and the ball planting needle respectively, and then install the cover plate assembly with the ball planting needle on the carrier plate, thereby greatly improving the work efficiency.

[0004] The utility model achieves the above-mentioned purpose through the following technical scheme: a ball planting needle welding fixture comprises a carrier plate, the carrier plate is provided with an installation groove for placing a substrate, a lower limit plate for ball planting needle is provided above the installation groove, the upper end surface of the carrier plate is provided with a lower limit plate positioning hole, the lower end surface of the lower limit plate of the ball planting needle is provided with a positioning protrusion, a plurality of limit sleeves are provided on the lower end surface of the lower limit plate of the ball planting needle, a cover plate assembly is provided above the lower limit plate of the ball planting needle, the cover plate assembly comprises a ball planting needle baffle plate and a first upper limit plate and a second upper limit plate which are arranged above and below the ball planting needle baffle plate, a plurality of coaxial limit holes are provided on the first upper limit plate and the second upper limit plate, the limit holes are coaxial with the limit sleeves, the first upper limit plate and the second upper limit plate are fixed by pins and nuts, guide grooves are provided on both sides of the lower end surface of the first upper limit plate, and the ball planting needle baffle plate is slidably connected in the guide grooves.

[0005] Preferably, a honeycomb avoidance hole is provided on the bottom surface of the mounting groove.

[0006] Preferably, the head of the pin faces downward, a positioning column is provided on the lower end surface of the pin, and a cover plate positioning hole is provided on the upper end surface of the carrier plate.

[0007] Preferably, the ball implanting needle lower limit plate is a hollow plate.

[0008] The beneficial effect of the technical solution of the utility model is: the clamp pre-installs and positions the substrate and the ball planting needle on the substrate, the carrier plate and the cover plate assembly respectively, and then the cover plate assembly with the ball planting needle is installed on the carrier plate, and the ball planting needle baffle is pulled out to allow the ball planting needle to naturally fall into the lower limit plate of the ball planting needle, thereby completing the positioning of the ball planting needle and greatly improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 FIG. 1 is a layout diagram of the ball implanting needle welding fixture of the embodiment when it is working.

[0010] Figure 2 It is a schematic diagram of the carrier board structure.

[0011] Figure 3 It is a schematic diagram of the structure of the lower limit plate of the ball planting needle.

[0012] Figure 4 It is a schematic diagram of the cover assembly structure.

[0013] The numbers in the figure indicate: 1. carrier plate; 2. mounting groove; 3. anti-displacement frame; 4. ball planting needle; 5. lower limit plate of ball planting needle; 6. positioning hole of lower limit plate; 7. limit sleeve; 8. ball planting needle baffle; 9. first upper limit plate; 10. second upper limit plate; 11. limit hole; 12. pin; 13. guide groove; 14. honeycomb avoidance hole; 15. positioning column; 16. positioning hole of cover plate. DETAILED DESCRIPTION

[0014] The utility model is further described in detail below in conjunction with specific embodiments.

[0015] Example:

[0016] like Figures 1 to 4As shown, a ball planting needle welding fixture of the utility model comprises a carrier plate 1, a mounting groove 2 is provided on the carrier plate 1, an anti-displacement frame 3 is provided in the mounting groove 2, a lower limit plate 5 for ball planting needles is provided above the mounting groove 2, a lower limit plate positioning hole 6 is provided on the upper end surface of the carrier plate 1, a positioning convex point is provided on the lower end surface of the lower limit plate 5 for ball planting needles, a plurality of limit sleeves 7 are provided on the lower end surface of the lower limit plate 5 for ball planting needles, the limit sleeves 7 penetrate the lower limit plate 5 for ball planting needles, and a cover plate is provided above the lower limit plate 5 for ball planting needles. The cover plate assembly includes a ball planting needle baffle 8 and a first upper limit plate 9 and a second upper limit plate 10 which are arranged above and below the ball planting needle baffle 8. The first upper limit plate 9 and the second upper limit plate 10 are provided with a plurality of coaxial limit holes 11, and the limit holes 11 are coaxial with the limit sleeve 7. The first upper limit plate 9 and the second upper limit plate 10 are fixed by pins 12 and nuts. Guide grooves 13 are arranged on both sides of the lower end surface of the first upper limit plate 9, and the ball planting needle baffle 8 is slidably connected in the guide grooves 13. Place the substrate into the mounting groove 2, place the anti-displacement frame 3 above the substrate, the protruding part of the upper end surface of the substrate extends into the anti-displacement frame 3 and fits the inner wall of the anti-displacement frame 3, so as to prevent the substrate from shifting, install the lower limit plate 5 of the ball planting needle on the carrier 1, insert a plurality of ball planting needles 4 into the limit holes 11 on the first upper limit plate 9 and the second upper limit plate 10 in sequence, the bottom end of the ball planting needle 4 rests on the upper end surface of the ball planting needle baffle 8, install the cover plate assembly with a plurality of ball planting needles 4 on the carrier 1, pull out the ball planting needle baffle 8, and the bottom of the ball planting needle 4 falls on the substrate along the limit sleeve 7 after no obstruction, so as to complete the positioning of the ball planting needle 4, and then the fixture flows into the reflow soldering furnace for welding. The clamp pre-installs and positions the substrate and the ball planting needle 4 on the substrate, the carrier plate 1 and the cover plate assembly respectively, and then installs the cover plate assembly with the ball planting needle 4 on the carrier plate 1, pulls out the ball planting needle baffle 8, and allows the ball planting needle 4 to naturally fall into the ball planting needle lower limit plate 5, completing the positioning of the ball planting needle 4 and greatly improving work efficiency.

[0017] The bottom surface of the installation groove 2 is provided with a honeycomb avoidance hole 14 to increase the welding heat conductivity.

[0018] The head of the pin 12 faces downward, a positioning column 15 is provided on the lower end surface of the pin 12, and a cover plate positioning hole 16 is provided on the upper end surface of the carrier plate 1 to facilitate the positioning of the cover plate assembly.

[0019] The ball implanting needle lower limit plate 5 is a hollow plate.

[0020] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A ball implant needle welding fixture, characterized in that: It includes a carrier plate, a mounting groove is provided on the carrier plate, a lower limit plate for a ball planting needle is provided above the mounting groove, a lower limit plate positioning hole is provided on the upper end surface of the carrier plate, a positioning protrusion is provided on the lower end surface of the lower limit plate for the ball planting needle, a plurality of limit sleeves are provided on the lower end surface of the lower limit plate for the ball planting needle, a cover plate assembly is provided above the lower limit plate for the ball planting needle, the cover plate assembly includes a ball planting needle baffle plate and a first upper limit plate and a second upper limit plate which are arranged above and below the ball planting needle baffle plate, a plurality of coaxial limit holes are provided on the first upper limit plate and the second upper limit plate, the first upper limit plate and the second upper limit plate are fixed by pins and nuts, guide grooves are provided on both sides of the lower end surface of the first upper limit plate, and the ball planting needle baffle plate is slidably connected in the guide grooves.

2. The ball implant needle welding fixture according to claim 1, characterized in that: The bottom surface of the installation groove is provided with a honeycomb avoidance hole.

3. The ball implant needle welding fixture according to claim 1, characterized in that: The head of the pin faces downward, a positioning column is provided on the lower end surface of the pin, and a cover plate positioning hole is provided on the upper end surface of the carrier plate.

4. The ball implant needle welding fixture according to claim 1, characterized in that: The ball implanting needle lower limit plate is a hollow plate.

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