PCB (Printed Circuit Board) welding support

Abstract

The utility model discloses a PCB (printed circuit board) welding support, and particularly relates to the technical field of circuit board processing, the PCB welding support comprises a bottom plate, support adjusting components are mounted at the bottom of the bottom plate close to four corners, a fixed clamping seat is fixedly arranged at the top of one end of the bottom plate, and a movable clamping seat is movably connected to the top of the bottom plate and located on the inner side of the fixed clamping seat. A fixed seat is fixedly arranged at the top of the other end of the bottom plate, a movable plate is fixedly connected to the outer wall of the top of the movable clamping seat in the horizontal direction, one end of the movable plate penetrates through and extends to the outside of the fixed seat, insections are evenly arranged on the upper surface of the movable plate, and a locking mechanism used for limiting the movable plate is arranged at the top of the fixed seat. According to the utility model, the effects of leveling and stably supporting the placement of the bottom plate can be achieved as required, the levelness of the PCB during welding is improved, the clamping of the PCB in the horizontal and vertical directions can be realized, the clamping of the PCB is not easy to damage, and the subsequent welding is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board processing, and more specifically, to a PCB circuit board welding support. Background Art

[0002] PCB, or printed circuit board, is an important electronic component and a carrier for electrical connection of electronic components. Because it is made by electronic printing, it is called a "printed" circuit board. In the development of electronic industry technology in recent years, a very obvious trend can be noticed, which is reflow soldering technology. The soldering support is to provide support during soldering operations.

[0003] After searching, a Chinese patent with application number CN201710501744.5 discloses a PCB circuit board welding seat. This technology sets a fixed card seat and a movable card seat. The distance between the fixed card seat and the movable card seat can be manually adjusted, so that the welding seat can fix different PCB circuit board welding seats, thereby improving the usability of the welding seat. By setting a first card slot, an opening and a limit plate are set at the side end of the first card slot. When the circuit board welder is ready, the limit plate can be rotated to pull out the circuit board. The structure is simple and disassembly is convenient.

[0004] When the above-mentioned PCB circuit board welding seat is actually used, the clamping control structure of the PCB circuit board adopts a hand-cranked driving screw to rotate and push the movable clamping seat to move horizontally. The disadvantage of this structural design is that the perception of the clamping force of the PCB circuit board is weak when it is manually cranked. Because it is a rotating method, it is easy to cause a large angle rotation due to the large force of the manual rotation, thereby causing damage to the PCB circuit board due to excessive clamping force. Therefore, it is necessary to design a PCB circuit board welding support structure that is convenient for sensing clamping resistance. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a PCB circuit board welding support.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a PCB circuit board welding support, comprising a bottom plate, wherein support adjustment components are installed at the bottom of the bottom plate near the four corners, and a fixed clamp seat is fixedly arranged on the top of one end of the bottom plate, the top of the bottom plate is located on the inner side of the fixed clamp seat and is movably connected with a movable clamp seat, and a fixed seat is fixedly arranged on the top of the other end of the bottom plate, and a movable plate is fixedly connected to the top outer wall of the movable clamp seat in the horizontal direction, one end of the movable plate passes through and extends to the outside of the fixed seat, and the upper surface of the movable plate is evenly provided with tooth patterns, and the fixed A locking mechanism for limiting the movable plate is provided on the top of the seat, and a through hole for the movable plate to move horizontally through is provided on the top of the fixed seat, grooves for placing the PCB circuit board are provided at the same height on the inner sides of the tops of the fixed clamp seat and the movable clamp seat, and silicone pads are fixedly bonded to the bottoms and inner walls of the two grooves, and adjustment plates are inserted into the tops of the fixed clamp seat and the movable clamp seat above the grooves in the vertical direction, and the bottom end of the adjustment plate extends to the inside of the groove and is fixedly connected to a pressure plate, and locking bolts for locking the position of the adjustment plate are provided on the top outer walls of the fixed clamp seat and the movable clamp seat.

[0007] As a further improvement of the technical solution of the utility model, the four support and adjustment components all include a fixed cylinder fixedly connected to the bottom of the base plate, the inner side of the bottom of each fixed cylinder is connected to a stud in the vertical direction, the bottom of each stud is connected to a suction cup, and the bottom of each stud is provided with a cavity connected to the interior of the suction cup, and a piston rod is inserted in the horizontal direction at the bottom of each stud, and one end of the piston rod extends to the inner wall of the cavity and is connected to a rubber plug.

[0008] As a further improvement of the technical solution of the utility model, the top of the fixed cylinder and the bottom of the base plate are fixed by bolts or welding, and the interior of the fixed cylinder is provided with an internal thread groove matching the external thread structure of the stud, the bottom outer wall of the stud is provided with a hole for the piston rod to pass through, and the interior of the cavity is provided with a cylinder cavity in the horizontal direction corresponding to the outside where the rubber plug is located, and the edge of the rubber plug is close to the inner wall of the cylinder cavity.

[0009] As a further improvement of the technical solution of the utility model, the locking mechanism includes a tooth block inserted on the top of the fixed seat in the vertical direction, the bottom of the tooth block is provided with teeth engaged with the tooth pattern, the top of the tooth block is located above the movable plate and is fixedly connected with a pull plate, and a spring is connected between the bottom of the pull plate and the top of the fixed seat.

[0010] As a further improvement of the technical solution of the utility model, a hole for the gear block to move in the vertical direction is provided on the top of the fixed seat, and metal sheets are welded to both ends of the spring. The two metal sheets are fixedly connected to the bottom of the pull plate and the top of the fixed seat by screws.

[0011] As a further improvement of the technical solution of the utility model, a limiting block is arranged at the top of the bottom plate at the bottom end of the movable clamp seat, and a limiting sliding groove is arranged in the horizontal direction outside the limiting block at the top of the bottom plate.

[0012] As a further improvement of the technical solution of the utility model, the tops of the fixed clamp seat and the movable clamp seat are both provided with holes for adjusting the vertical movement of the plate, the bottom of the pressure plate is bonded with a rubber pad, and the outer walls of the fixed clamp seat and the movable clamp seat are both provided with screw holes at the threaded connections corresponding to the locking bolts.

[0013] Beneficial effects of the utility model:

[0014] 1. By installing support adjustment components at the bottom of the base plate near the four corners, the base plate can be leveled and stably supported as needed. Taking the operation of one of the support adjustment components as an example, by rotating the position of the stud at the bottom of the fixed tube, it is convenient to control the protruding length of the stud at the bottom of the fixed tube. In this way, when performing welding operations, when the placement surface is not horizontal, the base plate can be leveled by adjusting the support adjustment components at the corresponding position, thereby improving the horizontality of the PCB circuit board during welding. When placing, the suction cup contacts the placement surface, and by pulling the piston rod outward to drive the rubber plug to move outward, a negative pressure can be formed inside the cavity, so that the suction cup can stably adsorb the placement surface, thereby improving the stability of the overall placement of the welding support;

[0015] 2. Through the provided locking mechanism and the movable plate that drives the movable clamp seat to move, the pull plate is pulled upward to drive the tooth block to move upward and disengage from the tooth pattern on the top of the movable plate. At this time, the spring is stretched, and the operator drives the movable clamp seat to move horizontally by pushing the movable plate to gradually place the two edges of the PCB circuit board in the grooves of the fixed clamp seat and the top of the movable clamp seat until the resistance is felt after contact and stops, and then the pull plate is released, and the spring reset drives the bottom of the tooth block to complete the clamping and locking of the tooth pattern on the movable plate. The operation is simple and it is not easy to cause damage to the clamping of the PCB circuit board. Finally, by loosening the locking bolt, the adjustment plate is lowered to make the bottom pressure plate press the edge of the PCB circuit board in the vertical direction, and then the locking bolt is tightened. The PCB circuit board can be clamped in the horizontal and vertical directions, which is convenient for subsequent welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 It is the front view of the utility model.

[0018] Figure 3It is a structural schematic diagram of the support and adjustment component in the utility model.

[0019] Figure 4 It is a structural schematic diagram of the locking mechanism in the utility model.

[0020] Figure 5 For this utility model Figure 2 Enlarged view of part A.

[0021] The accompanying drawings are marked as follows: 1, base plate; 2, support adjustment assembly; 3, fixed clamp seat; 4, movable clamp seat; 5, fixed seat; 6, movable plate; 7, tooth pattern; 8, pull plate; 9, tooth block; 10, spring; 11, groove; 12, silicone pad; 13, adjustment plate; 14, pressure plate; 15, rubber pad; 16, locking bolt; 17, limit block; 18, limit slide groove; 201, fixing cylinder; 202, stud; 203, suction cup; 204, internal thread groove; 205, cavity; 206, piston rod; 207, rubber plug; 501, through hole. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] As attached Figure 1-5 A PCB circuit board welding support shown in the figure includes a base plate 1, a support adjustment component 2 is installed at the bottom of the base plate 1 near the four corners, and a fixed clamp seat 3 is fixedly arranged on the top of one end of the base plate 1, and a movable clamp seat 4 is movably connected to the inner side of the fixed clamp seat 3 at the top of the base plate 1, and a fixed seat 5 is fixedly arranged on the top of the other end of the base plate 1, and a movable plate 6 is fixedly connected to the top outer wall of the movable clamp seat 4 in the horizontal direction, and one end of the movable plate 6 passes through and extends to the outside of the fixed seat 5, and the upper surface of the movable plate 6 is evenly provided with tooth patterns 7, and a lock for limiting the movable plate 6 is provided on the top of the fixed seat 5 A stop mechanism is provided, and a through hole 501 is provided on the top of the fixed seat 5 for the movable plate 6 to move horizontally through. Grooves 11 for placing PCB circuit boards are provided at the same height on the inner sides of the tops of the fixed clamp seat 3 and the movable clamp seat 4. Silicone pads 12 are fixedly bonded to the bottoms and inner walls of the two grooves 11. Adjustment plates 13 are inserted in the vertical direction on the tops of the fixed clamp seat 3 and the movable clamp seat 4, and the bottoms of the adjusting plates 13 extend to the inside of the grooves 11 and are fixedly connected to a pressure plate 14. Locking bolts 16 for locking the position of the adjusting plates 13 are provided on the outer walls of the tops of the fixed clamp seat 3 and the movable clamp seat 4.

[0024] As attached Figure 1-3 As shown, the four support adjustment components 2 all include a fixed cylinder 201 fixedly connected to the bottom of the base plate 1, the inner side of the bottom of each fixed cylinder 201 is connected to a stud 202 in the vertical direction, the bottom of each stud 202 is connected to a suction cup 203, and the bottom of each stud 202 is provided with a cavity 205 connected to the inside of the suction cup 203, and the bottom of each stud 202 is inserted with a piston rod 206 in the horizontal direction, one end of the piston rod 206 extends to the inner wall of the cavity 205 and is connected to a rubber plug 207, and the top of the fixed cylinder 201 is connected to the base plate. 1 are fixedly connected by bolts or welding, and the interior of the fixing cylinder 201 is provided with an internal thread groove 204 matching the external thread structure of the stud 202, and the bottom outer wall of the stud 202 is provided with a hole for the piston rod 206 to pass through, and the interior of the cavity 205 is provided with a cylinder cavity in the horizontal direction corresponding to the exterior where the rubber plug 207 is located, and the edge of the rubber plug 207 is close to the inner wall of the cylinder cavity. The four supporting adjustment components 2 are distributed at the four corners of the bottom plate 1, which can play the effect of leveling and stably supporting the placement of the bottom plate 1 as needed.

[0025] As attached Figure 1-2 and attached Figure 4 As shown, the locking mechanism includes a tooth block 9 inserted on the top of the fixed seat 5 in the vertical direction, the bottom of the tooth block 9 is provided with teeth engaged with the tooth pattern 7, the top of the tooth block 9 is located above the movable plate 6 and is fixedly connected with a pull plate 8, a spring 10 is connected between the bottom of the pull plate 8 and the top of the fixed seat 5, and the top of the fixed seat 5 is provided with a hole for the tooth block 9 to move in the vertical direction, both ends of the spring 10 are welded with metal sheets, and the two metal sheets are fixedly connected to the bottom of the pull plate 8 and the top of the fixed seat 5 by screws. The provided locking mechanism is used to lock the movable plate 6 when in use, thereby facilitating locking the position of the movable clamping seat 4 on the base plate 1.

[0026] As attached Figure 1-2 As shown, the bottom end of the movable clamp seat 4 is located at the top of the base plate 1 and a limiting block 17 is set. The top of the base plate 1 is provided with a limiting groove 18 in the horizontal direction corresponding to the outside of the limiting block 17, so as to improve the stability of the movable clamp seat 4 in the horizontal direction.

[0027] As attached Figure 1-2 and attached Figure 5As shown, the tops of the fixed clamp seat 3 and the movable clamp seat 4 are both provided with holes for the adjustment plate 13 to move vertically through, so that the adjustment plate 13 can be stably lifted and lowered in the vertical direction. A rubber pad 15 is bonded to the bottom of the pressure plate 14, which is convenient for protecting the PCB circuit board when it is vertically clamped. The outer walls of the fixed clamp seat 3 and the movable clamp seat 4 are provided with screw holes corresponding to the threaded connections of the locking bolts 16, which are convenient for the connection of the locking bolts 16, and then the rotation of the locking bolts 16 is used to achieve the loosening and clamping of the adjustment plate 13.

[0028] Working principle: This utility model designs a PCB circuit board welding support, the specific structure is as shown in the attached manual Figure 1-5 As shown, in the present technical solution, firstly, by installing support adjustment components 2 at the bottom of the bottom plate 1 near the four corners, the placement of the bottom plate 1 can be leveled and stably supported as needed. Taking the operation of one of the support adjustment components 2 as an example, by rotating the position of the stud 202 at the bottom of the fixed cylinder 201, it is convenient to control the protruding length of the stud 202 at the bottom of the fixed cylinder 201. In this way, when performing welding operations, when the placement surface is not horizontal, the support adjustment component 2 at the corresponding position is adjusted to facilitate the leveling of the bottom plate 1, thereby improving the horizontality of the PCB circuit board during welding. When placing, the suction cup 203 contacts the placement surface, and by pulling the piston rod 206 outward to drive the rubber plug 207 to move outward, a negative pressure can be formed inside the cavity 205, so that the suction cup 203 can stably adsorb the placement surface, thereby improving the stability of the overall placement of the welding support; secondly, prepare The PCB circuit board is placed between the fixed clamp seat 3 and the groove 11 of the movable clamp seat 4, and the locking mechanism is provided to cooperate with the movable plate 6 that drives the movable clamp seat 4 to move. The pull plate 8 is pulled upward to drive the tooth block 9 to move upward and disengage from the tooth pattern 7 on the top of the movable plate 6. At this time, the spring 10 is stretched (the bottom of the tooth block 9 is stuck on the tooth pattern 7 in the normal state of the spring 10). The operator drives the movable clamp seat 4 to move horizontally by pushing the movable plate 6 to gradually place the two edges of the PCB circuit board in the grooves 11 on the top of the fixed clamp seat 3 and the movable clamp seat 4 until the resistance is felt after the contact and stops, and then the pull plate 8 is released. The spring 10 is reset to drive the bottom of the tooth block 9 to complete the clamping and locking of the tooth pattern 7 on the movable plate 6. The operation is simple and it is not easy to cause damage to the clamping of the PCB circuit board. Finally, by loosening the locking bolt 16, the adjusting plate 13 is lowered to make the bottom pressure plate 14 press the edge of the PCB circuit board in the vertical direction, and then the locking bolt 16 is tightened.

[0029] Among them, the drawings of the embodiments disclosed in the present utility model only involve structures related to the embodiments disclosed in the present utility model, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0030] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A PCB circuit board welding support, comprising a bottom plate (1), characterized in that: The bottom of the base plate (1) is provided with support adjustment components (2) near the four corners, and a fixed clamp seat (3) is fixedly arranged on the top of one end of the base plate (1), and a movable clamp seat (4) is movably connected to the inner side of the fixed clamp seat (3) at the top of the base plate (1), and a fixed seat (5) is fixedly arranged on the top of the other end of the base plate (1), and a movable plate (6) is fixedly connected to the top outer wall of the movable clamp seat (4) in the horizontal direction, and one end of the movable plate (6) passes through and extends to the outside of the fixed seat (5), and the upper surface of the movable plate (6) is evenly provided with tooth patterns (7), and a locking mechanism for limiting the movable plate (6) is provided on the top of the fixed seat (5), and the fixed seat (5) is provided with a locking mechanism for limiting the movable plate (6). A through hole (501) is provided on the top for the movable plate (6) to move through laterally. A groove (11) for placing a PCB circuit board is provided at the same height on the inner side of the top of the fixed clamp seat (3) and the movable clamp seat (4). Silicone pads (12) are fixedly bonded to the bottom and inner wall of the two grooves (11). An adjustment plate (13) is inserted in the vertical direction above the top of the fixed clamp seat (3) and the movable clamp seat (4). The bottom end of the adjustment plate (13) extends to the inside of the groove (11) and is fixedly connected to a pressure plate (14). The outer wall of the top of the fixed clamp seat (3) and the movable clamp seat (4) is provided with a locking bolt (16) for locking the position of the adjustment plate (13).

2. The PCB circuit board welding support according to claim 1, characterized in that: The four support adjustment components (2) each comprise a fixed cylinder (201) fixedly connected to the bottom of the base plate (1); the inner side of the bottom of each fixed cylinder (201) is connected to a stud (202) in the vertical direction; the bottom of each stud (202) is connected to a suction cup (203); and the bottom of each stud (202) is provided with a cavity (205) connected to the inside of the suction cup (203); the bottom of each stud (202) is provided with a piston rod (206) in the horizontal direction; one end of the piston rod (206) extends to the inner wall of the cavity (205) and is connected to a rubber plug (207).

3. The PCB circuit board welding support according to claim 2, characterized in that: The top of the fixing cylinder (201) is fixed to the bottom of the base plate (1) by bolts or welding, and the interior of the fixing cylinder (201) is provided with an internal thread groove (204) matching the external thread structure of the stud (202), and the bottom outer wall of the stud (202) is provided with a hole for the piston rod (206) to pass through, and the interior of the cavity (205) is provided with a cylinder cavity in the horizontal direction corresponding to the exterior where the rubber plug (207) is located, and the edge of the rubber plug (207) is in close contact with the inner wall of the cylinder cavity.

4. The PCB circuit board welding support according to claim 1, characterized in that: The locking mechanism comprises a toothed block (9) inserted on the top of the fixed seat (5) in the vertical direction, the bottom of the toothed block (9) is provided with teeth engaged with the tooth pattern (7), the top of the toothed block (9) is located above the movable plate (6) and is fixedly connected with a pull plate (8), and a spring (10) is connected between the bottom of the pull plate (8) and the top of the fixed seat (5).

5. The PCB circuit board welding support according to claim 4, characterized in that: The top of the fixing seat (5) is provided with a hole for the inserting gear block (9) to move in the vertical direction. Both ends of the spring (10) are welded with metal sheets, and the two metal sheets are fixedly connected to the bottom of the pull plate (8) and the top of the fixing seat (5) by screws.

6. The PCB circuit board welding support according to claim 1, characterized in that: The bottom end of the movable clamp seat (4) is located at the top of the base plate (1) and a limit block (17) is provided. The top of the base plate (1) is provided with a limit slot (18) in the horizontal direction outside the limit block (17).

7. The PCB circuit board welding support according to claim 1, characterized in that: The tops of the fixed clamp seat (3) and the movable clamp seat (4) are both provided with holes for the adjustment plate (13) to vertically move through, the bottom of the pressure plate (14) is bonded with a rubber pad (15), and the outer walls of the fixed clamp seat (3) and the movable clamp seat (4) are both provided with screw holes at the threaded connections corresponding to the locking bolts (16).

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