Fixing clamp convenient for welding circuit board

Abstract

The utility model discloses a stationary fixture convenient for welding a circuit board, which relates to the technical field of welding fixtures, and comprises a belt arranged between a front plate and a back plate, a fixed plate is fixed at the top of the belt, and two sides of the top of the fixed plate are connected with a side plate I and a side plate II in a sliding manner; the same two-way lead screw is in threaded connection between the first side plate and the second side plate, connecting parts on the first side plate and the second side plate are the same and are symmetrically arranged, the side wall, away from the first side plate, of the second side plate penetrates through and is rotationally connected with a half gear, the other end of the half gear is fixedly connected with an installation block, and an installation groove is formed in the side wall, close to the first side plate, of the installation block. A telescopic rod is slidably connected into the mounting groove, the top and the bottom of the telescopic rod are both engaged with missing gears, and clamping plates are fixed to the outer arc walls of the two missing gears. According to the utility model, the position of the clamp can be adjusted, the circuit board can be clamped and fixed, the fixation is firm, the circuit boards with different thicknesses can be clamped conveniently, and the application range is wide.

Description

Technical Field

[0001] The utility model relates to the technical field of welding fixtures, in particular to a fixing fixture used for welding circuit boards. Background Art

[0002] With the development of science and technology, electronic components are increasingly used in various fields. The production and manufacturing of electronic components usually adopts the method of fixing the pins of electronic components to the circuit board by soldering. Usually, the pin length of electronic components after leaving the factory is different from the actual required size during assembly and soldering. In order to meet the actual requirements of electronic components during assembly and soldering, the pin length of electronic components needs to be trimmed to the most appropriate length according to the working conditions of different products.

[0003] However, in the existing circuit board welding process, the clamping plate used is of fixed shape and cannot clamp circuit boards of different thicknesses, thus having a narrow application range.

[0004] In view of this, this application is hereby filed. Utility Model Content

[0005] The utility model aims to provide a fixing fixture for welding a circuit board, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the utility model provides a fixing fixture for facilitating welding of circuit boards, comprising a belt installed between a front plate and a back plate, a fixing plate being fixed on the top of the belt, both sides of the top of the fixing plate are slidably connected to the side plate one and the side plate two, a same bidirectional lead screw is threadedly connected between the side plate one and the side plate two, the connecting parts on the side plate one and the side plate two are the same and symmetrically arranged, a side wall of the side plate two away from the side plate one passes through and is rotatably connected with a half gear, the other end of the half gear is fixedly connected with a mounting block, a mounting groove is provided on the side wall of the mounting block close to the side plate one, a telescopic rod is slidably connected in the mounting groove, the top and bottom of the telescopic rod are meshed with missing gears, a clamping plate is fixed on the outer arc walls of the two missing gears, a circuit board is clamped between the two clamping plates, the outer wall of the missing gear away from the clamping plate is meshed with a ratchet, the outer wall of the ratchet away from the missing gear passes through a rotating column, the rotating column passes through and is rotatably connected with a support column fixed on the mounting block, and the inner wall of the storage slot is connected to the ratchet through a reset spring.

[0007] Furthermore, two welding seats arranged along the length direction of the belt are fixed on the top of the back plate, and the bottom of the welding seat is connected to a welding gun via a movable platform.

[0008] Furthermore, an outer wall of the side plate 2 away from the side plate 1 is provided with a mounting seat fixed to the top of the fixing plate, and a rotating motor for driving the bidirectional lead screw to rotate is fixed to the side wall of the mounting seat.

[0009] Furthermore, two transverse racks are fixed to the side walls of the front plate and the back plate that are close to each other. The two transverse racks are located in the same horizontal plane, and the transverse racks are matched with the half gears.

[0010] Furthermore, one end of the rotating column extends to the outside of the mounting block, and when the rotating column is rotated, the ratchet is separated from the missing gear.

[0011] Furthermore, a first rotating shaft and a second rotating shaft are rotatably connected between the front plate and the back plate, and a belt connects the first rotating shaft and the second rotating shaft.

[0012] Furthermore, a loading port is provided at the front end of the front plate, and a unloading port is provided at the rear end of the front plate.

[0013] Furthermore, an escape space is formed between the top of the bidirectional lead screw and the clamping plate, and when the clamping plate drives the circuit board to flip, the bottom ends of the clamping plate and the circuit board are located in the escape space.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows: by setting the side panel one and the side panel two that can be moved closer to or farther away from each other, the position adjustment of the clamp is achieved; by setting the telescopic rod, the missing gear and the clamping plate, the circuit board can be clamped and fixed, and the fixation is firm, which is convenient for clamping circuit boards of different thicknesses and has a wide range of applications; by setting the transverse rack and the half gear, the circuit board can be flipped, which is suitable for use with circuit boards that require double-sided welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A front view of a fixing fixture for facilitating soldering of circuit boards;

[0016] Figure 2 A schematic diagram of the structure of the connection between the horizontal rack and the half gear in a fixing fixture for facilitating the welding of circuit boards;

[0017] Figure 3 A fixing fixture for soldering a circuit board Figure 1 The enlarged structural diagram of the bidirectional lead screw installation position at A in the middle;

[0018] Figure 4 A schematic diagram of the structure of the connection between a belt and a fixing plate in a fixing fixture for facilitating the welding of a circuit board;

[0019] Figure 5 The present invention is a schematic structural diagram of the connection between a retractable rod and a missing gear in a fixing fixture for facilitating the welding of a circuit board.

[0020] In the figure: 1. front plate; 2. back plate; 3. welding seat; 31. moving platform; 32. welding gun; 4. horizontal rack; 5. half gear; 61. rotating shaft one; 62. rotating shaft two; 7. belt; 8. fixed plate; 9. side plate one; 91. side plate two; 10. mounting seat; 11. rotating motor; 110. bidirectional lead screw; 120. telescopic rod; 121. reset spring; 122. splint; 123. missing gear; 124. ratchet; 125. support column; 126. rotating column. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-5 , the utility model provides a technical solution:

[0023] See also Figure 1-5 As shown, a fixing fixture for welding circuit boards comprises a belt 7 installed between a front plate 1 and a back plate 2, a rotating shaft 1 61 and a rotating shaft 2 62 are rotatably connected between the front plate 1 and the back plate 2, the belt 7 connects the rotating shaft 1 61 and the rotating shaft 2 62, two welding seats 3 arranged along the length direction of the belt 7 are fixed on the top of the back plate 2, a welding gun 32 is connected to the bottom of the welding seat 3 through a moving platform 31, a fixing plate 8 is fixed on the top of the belt 7, both sides of the top of the fixing plate 8 are slidably connected to the side plate 1 9 and the side plate 2 91, a same bidirectional lead screw 110 is threadedly connected between the side plate 1 9 and the side plate 2 91, a mounting seat 10 fixed to the top of the fixing plate 8 is provided on the outer wall of the side plate 1 9 away from the side plate 1 9, a rotating motor 11 for driving the bidirectional lead screw 110 to rotate is fixed to the side wall of the mounting seat 10, and the side plate 10 is fixed to the side plate 10. The connecting parts on the plate 1 9 and the side plate 2 91 are identical and symmetrically arranged. The side wall of the side plate 2 91 away from the side plate 1 9 passes through and is rotatably connected with a half gear 5. The other end of the half gear 5 is fixedly connected with a mounting block. The mounting block is provided with a mounting groove near the side wall of the side plate 1 9. A telescopic rod 120 is slidably connected in the mounting groove. The top and bottom of the telescopic rod 120 are meshed with missing gears 123. Clamps 122 are fixed on the outer arc walls of the two missing gears 123. A circuit board is clamped between the two clamps 122. The outer wall of the missing gear 123 away from the clamp 122 is meshed with a ratchet 124. The outer wall of the ratchet 124 away from the missing gear 123 passes through a rotating column 126. The rotating column 126 passes through and is rotatably connected with a support column 125 fixed on the mounting block. The inner wall of the storage slot is connected to the ratchet 124 through a reset spring 121.

[0024] See also Figure 1-5 As shown, a fixing fixture for soldering circuit boards is provided, wherein two transverse racks 4 are fixed to the side walls of the front plate 1 and the back plate 2 close to each other, and the two transverse racks 4 are located in the same horizontal plane, and the transverse racks 4 are adapted to the half gear 5, and one end of the rotating column 126 extends to the outside of the mounting block, and when the rotating column 126 is rotated, the ratchet 124 is separated from the missing gear 123.

[0025] See also Figure 1-5 As shown, a fixing fixture for welding circuit boards is provided, a loading port is provided at the front end of the front plate 1, a unloading port is provided at the rear end of the front plate 1, an escape space is formed between the top of the bidirectional lead screw 110 and the clamp 122, and when the clamp 122 drives the circuit board to flip, the bottom of the clamp 122 and the circuit board are located in the escape space.

[0026] Working principle: when the circuit board moves between the two telescopic rods 120, the rotating motor 11 rotates the bidirectional lead screw 110, the side plate 1 9 and the side plate 2 91 approach each other, the two ends of the circuit board abut against the telescopic rod 120, and the two telescopic rods 120 move away from each other, so that the missing gear 123 rotates, driving the clamping plate 122 to clamp the circuit board, and at the same time, the ratchet 124 engages with the missing gear 123 to prevent it from resetting; after the single-sided welding of the circuit board is completed, the belt 7 drives the fixing plate 8 to move to the next station, the half gear 5 engages with the horizontal rack 4, and the half gear 5 drives the mounting block, the clamping plate 122 and the circuit board to flip, so as to realize the welding of the components on the other end surface of the circuit board at the next station.

[0027] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A fixing fixture for facilitating soldering of a circuit board, comprising a belt (7) installed between a front plate (1) and a back plate (2), a fixing plate (8) being fixed on the top of the belt (7), characterized in that: The top sides of the fixed plate (8) are slidably connected to the side plate one (9) and the side plate two (91); the side plate one (9) and the side plate two (91) are threadedly connected with a same bidirectional lead screw (110); the connecting parts on the side plate one (9) and the side plate two (91) are identical and symmetrically arranged; a half gear (5) is penetrated and rotatably connected to the side wall of the side plate two (91) away from the side plate one (9); the other end of the half gear (5) is fixedly connected to a mounting block; a mounting groove is provided on the mounting block near the side wall of the side plate one (9); a telescopic rod (120) is slidably connected in the mounting groove; the telescopic rod (120) The top and bottom of the gear (123) are meshed with missing gears (123), the outer arc walls of the two missing gears (123) are fixed with clamping plates (122), a circuit board is clamped between the two clamping plates (122), the outer wall of the missing gear (123) away from the clamping plates (122) is meshed with ratchets (124), the outer wall of the ratchet (124) away from the missing gear (123) is penetrated by a rotating column (126), the rotating column (126) penetrates and is rotatably connected to a support column (125) fixed to the mounting block, and the inner wall of the storage slot is connected to the ratchet (124) via a reset spring (121).

2. A fixing fixture for facilitating soldering of a circuit board as claimed in claim 1, characterized in that: Two welding seats (3) arranged along the length direction of the belt (7) are fixed on the top of the back plate (2), and the bottom of the welding seat (3) is connected to a welding gun (32) via a movable platform (31).

3. A fixing fixture for facilitating soldering of a circuit board as claimed in claim 1, characterized in that: The outer wall of the second side plate (91) away from the first side plate (9) is provided with a mounting seat (10) fixed to the top of the fixed plate (8), and a rotating motor (11) for driving the bidirectional lead screw (110) to rotate is fixed to the side wall of the mounting seat (10).

4. A fixing fixture for facilitating soldering of a circuit board as claimed in claim 1, characterized in that: Two transverse racks (4) are fixed to the mutually adjacent side walls of the front plate (1) and the back plate (2); the two transverse racks (4) are located on the same horizontal plane, and the transverse racks (4) are matched with the half gears (5).

5. A fixing fixture for facilitating soldering of a circuit board as claimed in claim 1, characterized in that: One end of the rotating column (126) extends to the outside of the mounting block, and when the rotating column (126) is rotated, the ratchet (124) is separated from the missing gear (123).

6. A fixing fixture for facilitating soldering of a circuit board as claimed in claim 1, characterized in that: A first rotating shaft (61) and a second rotating shaft (62) are rotatably connected between the front plate (1) and the back plate (2), and a belt (7) connects the first rotating shaft (61) and the second rotating shaft (62).

7. A fixing fixture for facilitating soldering of a circuit board as claimed in claim 1, characterized in that: The front end of the front plate (1) is provided with a loading port, and the rear end of the front plate (1) is provided with a unloading port.

8. A fixing fixture for facilitating soldering of a circuit board as claimed in claim 1, characterized in that: An escape space is formed between the top of the bidirectional lead screw (110) and the clamping plate (122); when the clamping plate (122) drives the circuit board to flip, the bottom ends of the clamping plate (122) and the circuit board are located in the escape space.

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