Stable-connection PCB (Printed Circuit Board) welding fixture

Abstract

The utility model discloses a stably connected PCB (Printed Circuit Board) welding fixture which comprises a mounting seat, fixture assemblies are rotationally arranged on opposite sides of a first supporting plate and a second supporting plate, and positioning assemblies acting on the fixture assemblies are arranged on opposite sides of the first supporting plate and the second supporting plate. A moving assembly for driving the second supporting plate to move is arranged on the mounting base, the end of the fixing shaft is fixedly connected with the limiting disc and the clamp assembly, the clamping assembly is arranged on the side, away from the clamp assembly, of the second supporting plate, the clamping assembly is used for clamping and limiting the working angle of the clamp assembly, and the limiting assembly is used for limiting the clamping assembly in the unlocked state. According to the utility model, the clamp assemblies and the positioning assemblies are used cooperatively, and the limitation of the clamping assemblies on the clamp assemblies is released, so that the limiting assemblies can limit the clamping assemblies in an unlocking state, and rotation adjustment can be conveniently carried out on a circuit board clamped between the clamp assemblies.

Description

Technical Field

[0001] The utility model relates to the field of welding fixtures, in particular to a PCB circuit board welding fixture with stable connection. Background Art

[0002] There are many types of PCB circuit boards, including single-sided boards, double-sided boards and multi-layer boards. Single-sided boards have only one layer of copper foil, double-sided boards have two layers of copper foil, and multi-layer boards have multiple layers of copper foil. They are connected through holes between layers. When welding PCB circuit boards, a clamp is required to clamp the PCB circuit board.

[0003] For example, patent CN220312295U discloses a circuit board welding fixture, which belongs to the field of PLC controller processing technology. The circuit board welding fixture includes a base, two guide holes are provided on the top of the base, two symmetrically arranged moving seats are slidably connected in the guide holes, and a mounting column is fixedly connected to the top of the moving seat. The two clamps can be used to clamp and fix the circuit board, and the two clamps can drive the circuit board to turn over through the mutual cooperation of the clamping rod and the clamping slot, so as to avoid repeated disassembly and re-clamping of the circuit board, save time and labor, and greatly improve the welding efficiency of the circuit board. At the same time, the control and adjustment component can move the moving plate and, with the cooperation of the limit rod, make the two moving seats drive the clamps on the mounting column to approach or move away from each other, so as to facilitate rapid adjustment according to the size of the circuit board, thereby improving its applicability.

[0004] The clamping direction of the circuit board is adjusted by the cooperation of the clamping rod and the clamping slot, but the circuit board can only be in the front side facing up or the back side facing up, which is not convenient for changing the rotation and inclination angle of the circuit board according to the welding requirements of the circuit board, and the clamping rod is limited by a spring. When the tension on the clamping rod disappears, the clamping direction of the circuit board is fixed, which is not convenient for freely rotating the circuit board according to the requirements. Utility Model Content

[0005] The purpose of the utility model is to provide a PCB circuit board welding fixture with a stable connection to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a firmly connected PCB circuit board welding fixture, comprising a mounting seat, a first support plate is fixedly connected to one side of the top of the mounting seat, and a second support plate is arranged on the top of the mounting seat;

[0007] A clamp assembly is rotatably disposed on one side of the first support plate and the second support plate, a positioning assembly acting on the clamp assembly is disposed on one side of the first support plate and the second support plate opposite to each other, a moving assembly driving the second support plate to move is disposed on the mounting seat, and the positioning assembly includes:

[0008] A fixed shaft and a limiting disc, wherein the end of the fixed shaft is fixedly connected to the limiting disc and the clamp assembly;

[0009] A clamping assembly, the clamping assembly is arranged on a side of the second support plate away from the clamp assembly, and the clamping assembly is used to clamp and limit the working angle of the clamp assembly;

[0010] A limiting component is arranged at the bottom of the clamping component, and is used to limit the clamping component in an unlocked state.

[0011] Preferably, the clamping assembly comprises:

[0012] A mounting plate, the mounting plate being rotatably disposed on one side of the second supporting plate;

[0013] A clamping rod is fixedly connected to a side of the mounting plate facing the second supporting plate. One side of the limiting disc is provided with positioning holes in an annular array. The outer wall of the clamping rod is slidably clamped with the positioning holes.

[0014] Preferably, the first support plate and the second support plate are symmetrically fixedly connected with connecting blocks on the opposite sides thereof, a connecting shaft is rotatably inserted and sleeved on one side of the mounting plate, an end of the connecting shaft is fixedly connected to the connecting block, a fixing block is fixedly connected to the side of the mounting plate, and a tension spring is fixedly connected between the fixing block and the second support plate.

[0015] Preferably, the limiting component comprises:

[0016] A clamping piece, which is slidably disposed on one side of the second support plate and is used to clamp and limit the bottom of the mounting plate;

[0017] A fixing plate and a supporting spring, one side of the fixing plate is fixedly connected to the second supporting plate, and the supporting spring is located between the fixing plate and the clamping member.

[0018] Preferably, the bottom of the clamp is symmetrically fixedly connected with a guide rod, the outer wall of the guide rod is slidably sleeved with a support spring, the outer wall of the guide rod is slidably sleeved with a fixed plate, and the bottom of the guide rod is fixedly connected with a limiting plate.

[0019] Preferably, the clamp assembly comprises:

[0020] A connecting frame, one side of which is fixedly connected to the fixed shaft;

[0021] The limiting clamping plate is slidably sleeved inside the connecting frame, and a clamping space is formed between the bottom of the limiting clamping plate and the connecting frame.

[0022] Preferably, the top of the limiting clamp is symmetrically fixedly connected with a fixing rod, the outer wall of the fixing rod is slidably sleeved with a limiting spring, the limiting spring is located between the top of the limiting clamp and the connecting frame, the top of the outer wall of the fixing rod is slidably sleeved with the connecting frame, and the top of the fixing rod is fixedly connected with a handle through the connecting frame.

[0023] Preferably, the moving component comprises:

[0024] A bearing plate, the bearing plate is fixedly connected to the bottom of the second supporting plate;

[0025] A connecting piece, the top of which is fixedly connected to the bearing plate, and the top of the mounting seat is provided with a sliding hole matching the connecting piece;

[0026] An adjusting screw, the adjusting screw is rotatably connected to the bottom of the mounting seat, and the outer wall of the adjusting screw is threadably interlaced with the connecting piece;

[0027] A locking assembly is fixedly connected to the end of the adjusting screw.

[0028] Preferably, the locking assembly comprises:

[0029] A knob, wherein the knob is fixedly connected to the end of the adjusting screw;

[0030] A positioning rod, a through hole matching the positioning rod is symmetrically opened on one side of the knob, a positioning groove is opened on the side of the mounting seat facing the knob, and one end of the outer wall of the positioning rod is slidably engaged with the inner cavity of the positioning groove.

[0031] Preferably, one end of the through hole is fixedly sleeved with a limiting ring, one end of the positioning rod passes through the limiting ring and is fixedly connected to a handle, the outer wall of the positioning rod is fixedly sleeved with a fixing ring, the outer wall of the positioning rod is slidably sleeved with a positioning spring, and the positioning spring is located between the fixing ring and the limiting ring.

[0032] Technical effects and advantages of the utility model:

[0033] The utility model utilizes the coordinated use of a clamp assembly and a positioning assembly. The positioning assembly includes a fixed shaft, a limiting disc, a clamping assembly and a limiting assembly. When the clamping assembly clamps and limits the limiting disc, the clamp assembly can be clamped and limited. When the clamp assembly is released from the limitation of the clamp assembly, the limiting assembly can limit the clamping assembly in the unlocked state, thereby facilitating the rotational adjustment of the circuit board clamped between the clamp assemblies. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0035] Figure 2 It is a schematic diagram of the overall structure of the second supporting plate of the utility model.

[0036] Figure 3 It is a schematic diagram of the overall structure of the connection frame of the utility model.

[0037] Figure 4 It is a schematic diagram of the overall structure of the mounting plate of the utility model.

[0038] Figure 5 It is a schematic diagram of the overall structure of the load-bearing plate of the utility model.

[0039] Figure 6 It is a schematic diagram of the explosion structure of the knob of the utility model.

[0040] In the figure: 1, mounting seat; 2, first support plate; 3, second support plate; 4, clamp assembly; 41, connecting frame; 42, limiting clamp plate; 43, fixing rod; 44, limiting spring; 45, handle; 5, positioning assembly; 51, fixing shaft; 52, limiting disc; 53, clamping assembly; 531, mounting plate; 532, clamping rod; 533, positioning hole; 534, connecting block; 535, connecting shaft; 536, fixing block; 537, Tension spring; 54, limit assembly; 541, clamping piece; 542, fixing plate; 543, guide rod; 544, support spring; 545, limit plate; 6, moving assembly; 61, load-bearing plate; 62, connecting piece; 63, adjusting screw; 64, locking assembly; 641, knob; 642, positioning rod; 643, handle; 644, through hole; 645, positioning spring; 646, limit collar; 647, fixing collar; 65, sliding hole. DETAILED DESCRIPTION

[0041] 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.

[0042] The utility model provides Figure 1-6A PCB circuit board welding fixture with a stable connection shown in the figure comprises a mounting seat 1, a first support plate 2 is fixedly connected to one side of the top of the mounting seat 1, a second support plate 3 is arranged on the top of the mounting seat 1, a clamp assembly 4 is rotatably arranged on the opposite side of the first support plate 2 and the second support plate 3, two clamp assemblies 4 on the opposite side of the first support plate 2 and the second support plate 3 can clamp the circuit board, and the two clamp assemblies 4 are rotated between the first support plate 2 and the second support plate 3, so as to change the welding angle of the circuit board, a positioning assembly 5 acting on the clamp assembly 4 is arranged on the opposite side of the first support plate 2 and the second support plate 3, a moving assembly 6 for driving the second support plate 3 to move is arranged on the mounting seat 1, and the positioning assembly 5 comprises a fixed shaft 51, a limiting disc 52, a clamping assembly 53 and a limiting assembly 5 4, the end of the fixed shaft 51 is fixedly connected with the limiting disk 52 and the clamp assembly 4, and the two fixed shafts 51 are rotatably interlaced and sleeved with the first support plate 2 and the second support plate 3 respectively, the clamping assembly 53 is arranged on the side of the second support plate 3 away from the clamp assembly 4, the clamping assembly 53 is used to clamp and limit the working angle of the clamp assembly 4, the clamping assembly 53 is clamped and limited by the limiting disk 52, so as to limit the angle of the clamp assembly 4, the limiting assembly 54 is arranged at the bottom of the clamping assembly 53, the limiting assembly 54 is used to limit the clamping assembly 53 in the unlocked state, when the clamping assembly 53 is separated from the limiting disk 52, that is, the angle limit of the clamp assembly 4 is released, and the limiting assembly 54 can limit the clamping assembly 53 in the unlocked state, so that the two clamp assemblies 4 can drive the circuit board to rotate.

[0043] Furthermore, the clamping assembly 53 includes a mounting plate 531 and a clamping rod 532. The mounting plate 531 is rotatably arranged on one side of the second support plate 3. The clamping rod 532 is fixedly connected to the side of the mounting plate 531 facing the second support plate 3. One side of the limiting disk 52 is provided with a plurality of positioning holes 533 in a ring array. The outer wall of the clamping rod 532 is slidably engaged with the positioning holes 533, and the clamping rod 532 has a certain curvature. When the clamping rod 532 is engaged with the positioning holes 533 at different positions on one side of the limiting disk 52, the limiting disk 52 and the fixed shaft 51 can drive the clamp assembly 4 to be at a corresponding inclination angle, and the first support plate 2 and the second support The opposite sides of the plates 3 are symmetrically fixedly connected with connecting blocks 534, and a connecting shaft 535 is rotatably inserted and sleeved on one side of the mounting plate 531, and the end of the connecting shaft 535 is fixedly connected to the connecting block 534, and a fixing block 536 is fixedly connected to the side of the mounting plate 531, and a tension spring 537 is fixedly connected between the fixing block 536 and the second supporting plate 3. Under the action of the tension spring 537, the mounting plate 531 can drive the clamping rod 532 and the positioning hole 533 to maintain a stable clamping state, and a connecting shaft 535 rotates the mounting plate 531, so that the mounting plate 531 drives the clamping rod 532 to separate from the limiting disc 52, that is, at this time, the clamping assembly 53 is in an unlocked state.

[0044] In particular, the limiting assembly 54 includes a clamping member 541, a fixing plate 542 and a supporting spring 544. The clamping member 541 is L-shaped. When the mounting plate 531 drives the clamping rod 532 to be in an unlocked state, the clamping member 541 can clamp and limit the bottom of the mounting plate 531, so that the mounting plate 531 drives the clamping rod 532 to maintain a stable separation state with the limiting disc 52. The clamping member 541 is slidably arranged on one side of the second supporting plate 3. The clamping member 541 is used to clamp and limit the bottom of the mounting plate 531. One side of the fixing plate 542 is connected to the second supporting plate The support spring 544 is located between the fixing plate 542 and the clamping member 541. The bottom of the clamping member 541 is symmetrically fixedly connected with a guide rod 543. The outer wall of the guide rod 543 is slidably sleeved with the support spring 544. The outer wall of the guide rod 543 is slidably inserted and sleeved with the fixing plate 542. The bottom of the guide rod 543 is fixedly connected with a limiting plate 545. The guide rod 543 can guide the movement of the support spring 544 and the clamping member 541. Under the action of the support spring 544, the clamping member 541 can be stably clamped at the bottom of the mounting plate 531.

[0045] Specifically, the clamp assembly 4 includes a connecting frame 41 and a limiting clamp plate 42. One side of the connecting frame 41 is fixedly connected to the fixed shaft 51. The limiting clamp plate 42 is slidably sleeved inside the connecting frame 41. A clamping space is formed between the bottom of the limiting clamp plate 42 and the connecting frame 41. The top of the limiting clamp plate 42 is symmetrically fixedly connected with a fixing rod 43. The outer wall of the fixing rod 43 is slidably sleeved with a limiting spring 44. Under the action of the limiting spring 44, the limiting clamp plate 42 and the connecting frame 41 can clamp and lock the circuit board. The limiting spring 44 is located between the top of the limiting clamp plate 42 and the connecting frame 41. The top of the outer wall of the fixing rod 43 is slidably inserted and sleeved with the connecting frame 41. The top of the fixing rod 43 passes through the connecting frame 41 and is fixedly connected with a handle 45.

[0046] Furthermore, the moving assembly 6 includes a carrying plate 61, a connecting piece 62, an adjusting screw 63 and a locking assembly 64. The carrying plate 61 is fixedly connected to the bottom of the second supporting plate 3, the top of the connecting piece 62 is fixedly connected to the carrying plate 61, and a sliding hole 65 matching the connecting piece 62 is opened on the top of the mounting seat 1. The adjusting screw 63 is rotatably connected to the bottom of the mounting seat 1, and the outer wall of the adjusting screw 63 is threadedly inserted and sleeved with the connecting piece 62. By rotating the adjusting screw 63, the adjusting screw 63 can drive the connecting piece 62 to slide relative to the mounting seat 1, and then the carrying plate 61 drives the second supporting plate 3 to move toward or away from the first supporting plate 2. The locking assembly 64 is fixedly connected to the end of the adjusting screw 63, and the locking assembly 64 can clamp and lock the adjusting screw 63, thereby ensuring the stability of the second supporting plate 3 on the mounting seat 1 when the clamp assembly 4 clamps the circuit board.

[0047] Furthermore, the locking assembly 64 includes a knob 641 and a positioning rod 642. The knob 641 is fixedly connected to the end of the adjusting screw 63. A through hole 644 matching the positioning rod 642 is symmetrically opened on one side of the knob 641. A positioning groove is opened on the side of the mounting seat 1 facing the knob 641. One end of the outer wall of the positioning rod 642 is slidably engaged with the inner cavity of the positioning groove. One end of the through hole 644 is fixedly sleeved with a limiting collar 646. One end of the positioning rod 642 passes through the limiting collar 646 and is fixedly connected to a handle 643. The handle 643 is fixedly connected to the two positioning rods 642. The outer wall of the positioning rod 642 is fixedly sleeved with a limiting collar 646. There is a fixed ring 647, and the outer wall of the positioning rod 642 is slidably sleeved with a positioning spring 645, and the positioning spring 645 is located between the fixed ring 647 and the limiting ring 646. The positioning spring 645 can give an elastic force to the positioning rod 642 through the limiting ring 646 and the fixed ring 647, so that the positioning rod 642 and the positioning groove on the mounting seat 1 maintain a stable clamping state, and pull the handle 643 away from the knob 641 to move, the handle 643 can drive the two positioning rods 642 to separate from the positioning groove on one side of the mounting seat 1, so that the handle 643 and the knob 641 can be used to drive the adjusting screw 63 to rotate.

[0048] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A PCB circuit board welding fixture with a stable connection, comprising a mounting seat (1), a first support plate (2) being fixedly connected to one side of the top of the mounting seat (1), and a second support plate (3) being arranged on the top of the mounting seat (1); It is characterized in that A clamp assembly (4) is rotatably arranged on one side of the first support plate (2) and the second support plate (3), and a positioning assembly (5) acting on the clamp assembly (4) is arranged on the opposite side of the first support plate (2) and the second support plate (3). A moving assembly (6) for driving the second support plate (3) to move is arranged on the mounting seat (1), and the positioning assembly (5) comprises: A fixed shaft (51) and a limiting disc (52), wherein the end of the fixed shaft (51) is fixedly connected to the limiting disc (52) and the clamp assembly (4); A clamping assembly (53), the clamping assembly (53) being arranged on a side of the second support plate (3) away from the clamp assembly (4), the clamping assembly (53) being used to clamp and limit a working angle of the clamp assembly (4); A limiting component (54), wherein the limiting component (54) is arranged at the bottom of the clamping component (53), and the limiting component (54) is used to limit the clamping component (53) in an unlocked state.

2. A PCB circuit board welding fixture with stable connection according to claim 1, characterized in that: The clamping assembly (53) comprises: A mounting plate (531), wherein the mounting plate (531) is rotatably disposed on one side of the second supporting plate (3); A clamping rod (532) is fixedly connected to a side of the mounting plate (531) facing the second support plate (3); one side of the limiting disc (52) is provided with positioning holes (533) in a circular array; and the outer wall of the clamping rod (532) is slidably clamped with the positioning holes (533).

3. A PCB circuit board welding fixture with stable connection according to claim 2, characterized in that: The first support plate (2) and the second support plate (3) are symmetrically fixedly connected with connecting blocks (534) on opposite sides thereof; a connecting shaft (535) is rotatably inserted and sleeved on one side of the mounting plate (531); an end of the connecting shaft (535) is fixedly connected to the connecting block (534); a fixing block (536) is fixedly connected to the side of the mounting plate (531); and a tension spring (537) is fixedly connected between the fixing block (536) and the second support plate (3).

4. A PCB circuit board welding fixture with stable connection according to claim 2, characterized in that: The limiting component (54) comprises: A clamping member (541), the clamping member (541) being slidably disposed on one side of the second support plate (3), and the clamping member (541) being used to clamp and limit the bottom of the mounting plate (531); A fixing plate (542) and a supporting spring (544), one side of the fixing plate (542) is fixedly connected to the second supporting plate (3), and the supporting spring (544) is located between the fixing plate (542) and the clamping member (541).

5. A PCB circuit board welding fixture with stable connection according to claim 4, characterized in that: The bottom of the clamping member (541) is symmetrically fixedly connected to a guide rod (543); the outer wall of the guide rod (543) is slidably sleeved with a support spring (544); the outer wall of the guide rod (543) is slidably sleeved with a fixing plate (542); and the bottom of the guide rod (543) is fixedly connected to a limiting plate (545).

6. A PCB circuit board welding fixture with stable connection according to claim 1, characterized in that: The clamp assembly (4) comprises: A connecting frame (41), one side of the connecting frame (41) being fixedly connected to a fixed shaft (51); A limiting clamping plate (42) is slidably sleeved inside the connecting frame (41), and a clamping space is formed between the bottom of the limiting clamping plate (42) and the connecting frame (41).

7. A PCB circuit board welding fixture with stable connection according to claim 6, characterized in that: The top of the limiting clamp (42) is symmetrically fixedly connected with a fixing rod (43), the outer wall of the fixing rod (43) is slidably sleeved with a limiting spring (44), the limiting spring (44) is located between the top of the limiting clamp (42) and the connecting frame (41), the top of the outer wall of the fixing rod (43) is slidably inserted and sleeved with the connecting frame (41), and the top of the fixing rod (43) passes through the connecting frame (41) and is fixedly connected with a handle (45).

8. The PCB circuit board welding fixture with stable connection according to claim 1, characterized in that: The moving component (6) comprises: A bearing plate (61), wherein the bearing plate (61) is fixedly connected to the bottom of the second supporting plate (3); A connecting member (62), the top of the connecting member (62) being fixedly connected to the bearing plate (61), and the top of the mounting seat (1) being provided with a sliding hole (65) matching the connecting member (62); An adjusting screw (63), the adjusting screw (63) being rotatably connected to the bottom of the mounting seat (1), and the outer wall of the adjusting screw (63) being threadably interlaced with the connecting piece (62); A locking assembly (64), wherein the locking assembly (64) is fixedly connected to the end of the adjusting screw rod (63).

9. A PCB circuit board welding fixture with stable connection according to claim 8, characterized in that: The locking assembly (64) comprises: A knob (641), wherein the knob (641) is fixedly connected to the end of the adjusting screw (63); A positioning rod (642), a through hole (644) matching the positioning rod (642) is symmetrically provided on one side of the knob (641), a positioning groove is provided on the side of the mounting seat (1) facing the knob (641), and one end of the outer wall of the positioning rod (642) is slidably engaged with the inner cavity of the positioning groove.

10. A PCB circuit board welding fixture with stable connection according to claim 9, characterized in that: One end of the through hole (644) is fixedly sleeved with a limiting ring (646), one end of the positioning rod (642) passes through the limiting ring (646) and is fixedly connected to a handle (643), the outer wall of the positioning rod (642) is fixedly sleeved with a fixing ring (647), the outer wall of the positioning rod (642) is slidably sleeved with a positioning spring (645), and the positioning spring (645) is located between the fixing ring (647) and the limiting ring (646).

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