A circuit board fixing device for PCB circuit board welding

Abstract

The invention relates to the technical field of circuit board welding, and in particular to a circuit board fixing device for PCB circuit board welding, comprising a main body plate, an upper end of the main body plate is provided with an adjustable grinding and welding mechanism for drilling and welding the circuit board at any curvature, the adjustable grinding and welding mechanism comprises two first limit grooves symmetrically arranged on the upper end of the main body plate, a transmission shaft end of a third motor is fixedly connected with a second fixing body, a side surface of the second fixing body is fixedly connected with a first rotating shaft, an end of the first rotating shaft is rotatably arranged with a second connecting plate, and a clamping and fixing mechanism for clamping and adjusting a flexible circuit board is provided at the upper end of the main body plate; a support body at a telescopic end of a fourth electric telescopic rod has the same curvature as that of the circuit board installation, and then the first motor drives a roller to tighten the circuit board, so as to ensure that the circuit board can be completely fitted on the upper ends of a plurality of support bodies, and to ensure that the circuit board can be drilled and electronic components can be welded according to the curvature during installation.

Description

Technical Field

[0001] The invention relates to the technical field of circuit board welding, and in particular to a circuit board fixing device for PCB circuit board welding. Background Art

[0002] Circuit board, or PCB, is an important component used to support, connect and arrange electronic components in electronic devices. Existing circuit boards are divided into single-layer boards, multi-layer boards, rigid boards and flexible boards according to their materials and structures. Different types of circuit boards are used in different usage scenarios. Flexible boards are suitable for a variety of application scenarios that require flexibility and space efficiency due to their unique flexibility and bendability. They are mostly used in small electronic products and medical devices.

[0003] In the prior art, when welding electronic components on a flexible circuit board, the circuit board is generally first fixed on a horizontal support plate, and then holes are drilled on the surface of the circuit board, and then the electronic components are fixed to the circuit board by a welding mechanism. Since the flexible circuit board is generally installed according to a fixed arc, and the prior art fixes it in a horizontal direction during welding, the subsequent winding of the circuit board will cause the electronic components on the surface to collide and squeeze each other, which has low safety. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a circuit board fixing device for PCB circuit board welding.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: a circuit board fixing device for PCB circuit board welding, comprising a main body plate, the upper end of the main body plate is provided with an adjustable grinding and welding mechanism for drilling and welding the circuit board at any curvature, the adjustable grinding and welding mechanism comprises two first limiting grooves symmetrically opened at the upper end of the main body plate, first limiting bodies are respectively slidably arranged in the two first limiting grooves, the upper ends of the two first limiting bodies are respectively fixedly connected with fifth electric telescopic rods, the telescopic end of one of the fifth electric telescopic rods is fixedly connected with the second connecting plate, the telescopic end of the other fifth electric telescopic rod is fixedly connected with the third motor, the transmission shaft end of the third motor is fixedly connected with the second fixing body, the side of the second fixing body is fixedly connected with the first rotating shaft, the end of the first rotating shaft is rotatably arranged with the second connecting plate, and the upper end of the main body plate is provided with a clamping and fixing mechanism for clamping and adjusting the flexible circuit board.

[0006] Preferably, two second motors are fixedly connected to the side surfaces of the main body plate, and the transmission shaft ends of the two second motors are fixedly connected to the first threaded rods, and the two first threaded rods are respectively arranged with the first limiting body through threaded cooperation, and a second limiting groove is opened at the lower end of the second fixed body, and a third limiting body and a fourth limiting body are respectively slidably arranged in the second limiting groove.

[0007] Preferably, the second fixed body is fixedly connected to the fourth motor in the second limiting groove, the transmission shaft end of the fourth motor is fixedly connected to the second threaded rod, the third limiting body and the fourth limiting body are arranged with the second threaded rod by threaded cooperation, the lower end of the third limiting body is fixedly connected to the sixth electric telescopic rod, and the telescopic end of the sixth electric telescopic rod is fixedly connected to a welding head.

[0008] Preferably, a seventh electric telescopic rod is fixedly connected to the lower end of the fourth limiting body, the telescopic ends of the seventh electric telescopic rod are respectively fixedly connected to the fifth motor, and the transmission shaft end of the fifth motor is fixedly connected to the grinding rod.

[0009] Preferably, a plurality of second placement grooves are provided at the lower end of the main body plate at a position below the second fixed body, and a plurality of the second placement grooves are provided at the upper end of the main body plate in an equidistant manner, and a fourth electric telescopic rod is fixedly connected to a plurality of the second placement grooves, and a plurality of the telescopic ends of the fourth electric telescopic rods are fixedly connected to support bodies, and a plurality of the support bodies are slidably matched with the second placement grooves.

[0010] Preferably, a plurality of the fourth electric telescopic rods are connected to the controller via wires, and upper ends of a plurality of the support bodies are respectively rounded structures.

[0011] Preferably, the clamping and fixing mechanism includes two first empty grooves symmetrically opened at the upper end of the main body plate, the two first empty grooves are respectively fixedly connected with a first electric telescopic rod, the telescopic end of one of the first electric telescopic rods is fixedly connected to the first fixed body, the telescopic end of the other first electric telescopic rod is fixedly connected to the support plate, the upper end of the support plate is symmetrically provided with a third electric telescopic rod, the telescopic end of one of the third electric telescopic rods is fixedly connected to the first motor, the telescopic end of the other third electric telescopic rod is fixedly connected to the first connecting plate, the transmission shaft end of the first motor is fixedly connected to a fixing rod, the other end of the fixing rod is rotatably arranged with the first connecting plate, and the side of the fixing rod is fixedly connected to a roller.

[0012] Preferably, the upper end of the support plate is fixedly connected to a rotating roller, a first placement groove is opened on the side of the first fixed body, the upper end of the first fixed body is fixedly connected to a second electric telescopic rod, the telescopic end of the second electric telescopic rod is fixedly connected to a clamping plate that slides with the first placement groove, and the first fixed body is fixedly connected to a first anti-skid plate on the lower end surface of the first placement groove.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The second electric telescopic rod drives the clamping plate to move downward, and then the clamping plate and the first anti-slip plate fix and clamp the end of the circuit board, and then the two third electric telescopic rods are extended at the same time, and the two third electric telescopic rods drive the rollers to move upward, and then the other end of the flexible circuit board is placed under the rollers, and then the two third electric telescopic rods are retracted so that the rollers and the rotating rollers clamp the circuit board, and then the first motor drives the fixed rod to rotate, and the fixed rod drives the rollers to rotate, so as to control the tightness of the flexible circuit board. At the same time, according to the curvature of the circuit board installation, several fourth electric telescopic rods are extended and retracted, so that the support body at the telescopic end of the fourth electric telescopic rod is the same as the curvature of the circuit board installation, and then the first motor drives the rollers to tighten the circuit board to ensure that the circuit board can be completely fitted on the upper ends of several support bodies, and to ensure that the circuit board can be drilled and electronic components can be welded according to the curvature during installation, thereby improving the reliability of the device;

[0015] The second motor drives the first threaded rod to rotate, and the first threaded rod cooperates to drive the first limiting body to move above the position where a hole needs to be drilled, and then the fourth motor is started, and the fourth motor drives the second threaded rod to rotate, and the second threaded rod cooperates to drive the fourth limiting body to move along the second limiting groove to above the position where a hole needs to be drilled, and then the third motor is started, and the third motor drives the second fixed body to rotate, so that the second fixed body rotates to an angle tangent to the drilling position, and then the fifth motor is started while the seventh electric telescopic rod is extended, and the fifth motor drives the grinding rod to rotate, so as to ensure that the grinding rod can be tangent to the installation arc of the circuit board during drilling, and ensure that when the circuit board is installed, there will be no collision or extrusion between the electronic components on its surface, thereby improving the safety of the device, and then the electronic components are placed in the drilled hole, and then the fourth motor is started, and the fourth motor drives the third limiting body to move above the installation hole through the cooperation of the second threaded rod, and then the sixth electric telescopic rod is extended, and the welding head is driven to fix the electronic components in the installation hole through solder, so as to ensure that the electronic components are fixed according to the installation arc of the circuit board, and when the circuit board is subsequently installed, the position and angle of the electronic components will not change, thereby improving the safety of the electronic components. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 The present invention is a sectional view of the whole Figure 1 ;

[0018] Figure 3 The present invention is a sectional view of the whole Figure 2 ;

[0019] Figure 4 The present invention is a sectional view of the whole Figure 3 ;

[0020] Figure 5 For the present invention Figure 2 A magnified image of point A;

[0021] Figure 6 For the present invention Figure 2 The enlarged view of point B;

[0022] Figure 7 For the present invention Figure 2 Enlarged view of point C;

[0023] Figure 8 For the present invention Figure 4 Enlarged view of point D.

[0024] 1. Main body plate; 2. Clamping and fixing mechanism; 3. Adjustable grinding and welding mechanism; 21. First empty slot; 22. First electric telescopic rod; 23. First fixed body; 24. Second electric telescopic rod; 25. First placement slot; 26. Clamping plate; 27. First anti-slip plate; 28. Support plate; 29. ​​Third electric telescopic rod; 210. First connecting plate; 211. Roller; 212. Rotating roller; 213. First motor; 214. Fixed rod; 31. First limiting slot; 32. First limiting body; 33. Second placement slot; 34 , fourth electric telescopic rod; 35, first threaded rod; 36, fifth electric telescopic rod; 37, second connecting plate; 38, first rotating shaft; 39, second motor; 310, third motor; 312, second fixed body; 313, fourth motor; 314, second threaded rod; 315, second limiting groove; 316, third limiting body; 317, sixth electric telescopic rod; 318, welding head; 319, supporting body; 320, fourth limiting body; 321, seventh electric telescopic rod; 322, fifth motor; 323, grinding rod. DETAILED DESCRIPTION

[0025] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0026] See also Figure 1-Figure 8A circuit board fixing device for PCB circuit board welding comprises a main body plate 1, and an adjustable grinding and welding mechanism 3 for drilling and welding the circuit board at any arc is arranged on the upper end of the main body plate 1.

[0027] In this embodiment, the adjustable grinding and welding mechanism 3 includes two first limit grooves 31 symmetrically opened at the upper end of the main body plate 1, and the first limit bodies 32 are respectively slidably arranged in the two first limit grooves 31, and the upper ends of the two first limit bodies 32 are respectively fixedly connected with the fifth electric telescopic rod 36, the telescopic end of one of the fifth electric telescopic rods 36 is fixedly connected with the second connecting plate 37, and the telescopic end of the other fifth electric telescopic rod 36 is fixedly connected with the third motor 310, the transmission shaft end of the third motor 310 is fixedly connected with the second fixed body 312, and the side of the second fixed body 312 is fixedly connected with the first rotating shaft 38, and the end of the first rotating shaft 38 is rotatably arranged with the second connecting plate 37.

[0028] Two second motors 39 are fixedly connected to the side surfaces of the main body plate 1, and the transmission shaft ends of the two second motors 39 are fixedly connected with first threaded rods 35 respectively. The two first threaded rods 35 are respectively arranged with the first limiting body 32 through threaded cooperation. A second limiting groove 315 is opened at the lower end of the second fixed body 312, and a third limiting body 316 and a fourth limiting body 320 are respectively slidably arranged in the second limiting groove 315.

[0029] The second fixed body 312 is fixedly connected to the fourth motor 313 in the second limiting groove 315, the transmission shaft end of the fourth motor 313 is fixedly connected to the second threaded rod 314, the third limiting body 316 and the fourth limiting body 320 are arranged with the second threaded rod 314 through threaded cooperation, the lower end of the third limiting body 316 is fixedly connected to the sixth electric telescopic rod 317, and the telescopic end of the sixth electric telescopic rod 317 is fixedly connected to the welding head 318.

[0030] A seventh electric telescopic rod 321 is fixedly connected to the lower end of the fourth limiting body 320 , and the telescopic ends of the seventh electric telescopic rod 321 are respectively fixedly connected to the fifth motor 322 , and the transmission shaft end of the fifth motor 322 is fixedly connected to the polishing rod 323 .

[0031] The lower end of the main body plate 1 is provided with a plurality of second placement grooves 33 at a position below the second fixed body 312. The plurality of second placement grooves 33 are arranged at an equidistant manner at the upper end of the main body plate 1. The plurality of second placement grooves 33 are respectively fixedly connected with fourth electric telescopic rods 34. The telescopic ends of the plurality of fourth electric telescopic rods 34 are respectively fixedly connected with support bodies 319. The plurality of support bodies 319 are respectively slidably matched with the second placement grooves 33.

[0032] The plurality of fourth electric telescopic rods 34 are connected to the controller via wires, and the upper ends of the plurality of support bodies 319 are respectively rounded structures.

[0033] Specifically, the second motor 39 drives the first threaded rod 35 to rotate, and the first threaded rod 35 cooperates to drive the first limiting body 32 to move above the position where a hole needs to be drilled, and then the fourth motor 313 is started, and the fourth motor 313 drives the second threaded rod 314 to rotate, and the second threaded rod 314 cooperates to drive the fourth limiting body 320 to move along the second limiting groove 315 to above the position where a hole needs to be drilled, and then the third motor 310 is started, and the third motor 310 drives the second fixed body 312 to rotate, so that the second fixed body 312 rotates to an angle tangent to the drilling position, and then the seventh electric telescopic rod 321 is extended while the fifth motor 322 is started, and the fifth motor 322 drives the grinding rod 323 to rotate, to ensure that the grinding rod 323 can be tangent to the installation arc of the circuit board when drilling.

[0034] In this embodiment, a clamping and fixing mechanism 2 for clamping and adjusting the flexible circuit board is disposed at the upper end of the main body plate 1 .

[0035] The clamping and fixing mechanism 2 includes two first empty grooves 21 symmetrically opened at the upper end of the main body plate 1, and the first electric telescopic rods 22 are fixedly connected in the two first empty grooves 21 respectively, the telescopic end of one of the first electric telescopic rods 22 is fixedly connected to the first fixed body 23, and the telescopic end of the other first electric telescopic rod 22 is fixedly connected to the support plate 28, and the upper end of the support plate 28 is symmetrically provided with a third electric telescopic rod 29, the telescopic end of one of the third electric telescopic rods 29 is fixedly connected to the first motor 213, and the telescopic end of the other third electric telescopic rod 29 is fixedly connected to the first connecting plate 210, the transmission shaft end of the first motor 213 is fixedly connected to the fixing rod 214, the other end of the fixing rod 214 is rotatably arranged with the first connecting plate 210, and the side of the fixing rod 214 is fixedly connected to the roller 211.

[0036] The upper end of the support plate 28 is fixedly connected to a rotating roller 212, a first placement groove 25 is opened on the side of the first fixed body 23, the upper end of the first fixed body 23 is fixedly connected to a second electric telescopic rod 24, the telescopic end of the second electric telescopic rod 24 is fixedly connected to a clamping plate 26 that slides with the first placement groove 25, and the first fixed body 23 is fixedly connected to a first anti-slip plate 27 on the lower end surface of the first placement groove 25.

[0037] Specifically, the second electric telescopic rod 24 drives the clamping plate 26 to move downward, and then the clamping plate 26 and the first anti-slip plate 27 fix the end of the circuit board, and then the two third electric telescopic rods 29 are extended at the same time, and the two third electric telescopic rods 29 drive the roller 211 to move upward, and then the other end of the flexible circuit board is placed under the roller 211, and then the two third electric telescopic rods 29 are retracted, so that the roller 211 and the rotating roller 212 clamp the circuit board, and then the first motor 213 drives the fixing rod 214 to rotate, and the fixing rod 214 drives the roller 211 to rotate, thereby controlling the tightness of the flexible circuit board.

[0038] When in use, the main body plate 1 is placed on a horizontal surface, and then the flexible circuit board is taken out, and one end of the circuit board is placed in the first placement groove 25, and then the second electric telescopic rod 24 is extended, and the second electric telescopic rod 24 drives the clamping plate 26 to move downward, and then the clamping plate 26 and the first anti-slip plate 27 fix and clamp the end of the circuit board, and then the two third electric telescopic rods 29 are extended at the same time, and the two third electric telescopic rods 29 drive the roller 211 to move upward, and then the other end of the flexible circuit board is placed under the roller 211, and then the two third electric telescopic rods 29 are retracted to clamp the roller 211 and the rotating roller 212. The circuit board is held, and then the first motor 213 drives the fixing rod 214 to rotate, and the fixing rod 214 drives the roller 211 to rotate, so as to control the tightness of the flexible circuit board. At the same time, the plurality of fourth electric telescopic rods 34 are extended and retracted according to the curvature of the circuit board installation, so that the support body 319 at the telescopic end of the fourth electric telescopic rod 34 has the same curvature as the circuit board installation. Then the first motor 213 drives the roller 211 to tighten the circuit board to ensure that the circuit board can be completely fitted on the upper ends of the plurality of support bodies 319, and to ensure that the circuit board can be drilled and electronic components can be welded according to the curvature during installation, thereby improving the reliability of the device.

[0039] After the flexible circuit board is fixed to the upper end of the support body 319 according to the installation arc, the second motor 39 drives the first threaded rod 35 to rotate, and the first threaded rod 35 cooperates to drive the first limiting body 32 to move above the position where a hole needs to be drilled, and then the fourth motor 313 is started, and the fourth motor 313 drives the second threaded rod 314 to rotate, and the second threaded rod 314 cooperates to drive the fourth limiting body 320 to move along the second limiting groove 315 to above the position where a hole needs to be drilled, and then the third motor 310 is started, and the third motor 310 drives the second fixed body 312 to rotate, so that the second fixed body 312 rotates to an angle tangent to the drilling position, and then the seventh electric telescopic rod 321 is extended while the fifth motor 322 is started, and the fifth motor 322 The grinding rod 323 is driven to rotate, ensuring that the grinding rod 323 can be tangent to the installation arc of the circuit board when drilling, ensuring that when the circuit board is installed, there will be no collision or squeezing between the electronic components on its surface, thereby improving the safety of the device; then the electronic component is placed in the drilled hole, and then the fourth motor 313 is started. The fourth motor 313 drives the third limit body 316 to move to the top of the installation hole through the second threaded rod 314, and then the sixth electric telescopic rod 317 is extended to drive the welding head 318 to fix the electronic component in the installation hole through soldering, which can ensure that the electronic component is fixed according to the installation arc of the circuit board. When the circuit board is installed later, the position and angle of the electronic component will not change, thereby improving the safety of the electronic component.

[0040] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A circuit board fixing device for PCB circuit board welding, comprising a main plate (1), characterized in that: The upper end of the main body plate (1) is provided with an adjustable grinding and welding mechanism (3) for drilling and welding the circuit board at any arc. The adjustable grinding and welding mechanism (3) comprises two first limiting grooves (31) symmetrically arranged at the upper end of the main body plate (1). First limiting bodies (32) are respectively slidably arranged in the two first limiting grooves (31). The upper ends of the two first limiting bodies (32) are respectively fixedly connected to fifth electric telescopic rods (36). The telescopic end of one of the fifth electric telescopic rods (36) is fixedly connected to a second connecting plate (37). The telescopic end of the other fifth electric telescopic rod (36) is fixedly connected to a third motor (310). The transmission shaft end of the third motor (310) is fixedly connected to a second fixed body (312). The side of the second fixed body (312) is fixedly connected to a first rotating shaft (38). The end of the first rotating shaft (38) is rotatably arranged with the second connecting plate (37). The main body plate ( 1) is provided with a clamping and fixing mechanism (2) for clamping and adjusting the flexible circuit board at the upper end, a second limiting groove (315) is provided at the lower end of the second fixing body (312), a third limiting body (316) and a fourth limiting body (320) are respectively slidably provided in the second limiting groove (315), a seventh electric telescopic rod (321) is fixedly connected in the lower end of the fourth limiting body (320), the telescopic ends of the seventh electric telescopic rod (321) are respectively fixedly connected to the fifth motor (322), the transmission shaft end of the fifth motor (322) is fixedly connected to the grinding rod (323), a plurality of second placement grooves (33) are provided at the lower end of the main body plate (1) at a position below the second fixing body (312), a fourth electric telescopic rod (34) is respectively fixedly connected in the plurality of second placement grooves (33), and a plurality of fourth electric telescopic rods (34) are respectively fixedly connected to the telescopic ends of the plurality of fourth electric telescopic rods (34) are respectively fixedly connected to the support body (319); The clamping and fixing mechanism (2) comprises two first empty slots (21) symmetrically arranged at the upper end of the main body plate (1), wherein first electric telescopic rods (22) are respectively fixedly connected in the two first empty slots (21), a telescopic end of one of the first electric telescopic rods (22) is fixedly connected to a first fixing body (23), and a telescopic end of the other first electric telescopic rod (22) is fixedly connected to a support plate (28), a third electric telescopic rod (29) is symmetrically arranged at the upper end of the support plate (28), a telescopic end of one of the third electric telescopic rods (29) is fixedly connected to a first motor (213), and a telescopic end of the other third electric telescopic rod (29) is fixedly connected to a first connecting plate (210), a transmission shaft end of the first motor (213) is fixedly connected to a fixing rod (214), the other end of the fixing rod (214) is rotatably arranged with the first connecting plate (210), and a roller (211) is fixedly connected to a side surface of the fixing rod (214).

2. A circuit board fixing device for PCB circuit board welding according to claim 1, characterized in that: Two second motors (39) are fixedly connected to the side surfaces of the main body plate (1), the transmission shaft ends of the two second motors (39) are fixedly connected to first threaded rods (35), the two first threaded rods (35) are respectively arranged with the first limiting bodies (32) by threaded engagement, and the second fixing body (312) is fixedly connected to a fourth motor (313) in the second limiting groove (315).

3. A circuit board fixing device for PCB circuit board welding according to claim 2, characterized in that: The transmission shaft end of the fourth motor (313) is fixedly connected to the second threaded rod (314); the third limiting body (316) and the fourth limiting body (320) are arranged with the second threaded rod (314) by threaded engagement; a sixth electric telescopic rod (317) is fixedly connected inside the lower end of the third limiting body (316); and a welding head (318) is fixedly connected to the telescopic end of the sixth electric telescopic rod (317).

4. A circuit board fixing device for PCB circuit board welding according to claim 1, characterized in that: A plurality of the second placement grooves (33) are arranged at equal intervals on the upper end of the main body plate (1), and a plurality of the support bodies (319) are respectively arranged in sliding cooperation with the second placement grooves (33).

5. A circuit board fixing device for PCB circuit board welding according to claim 4, characterized in that: A plurality of the fourth electric telescopic rods (34) are connected to the controller via electric wires, and the upper ends of a plurality of the support bodies (319) are respectively rounded structures.

6. A circuit board fixing device for PCB circuit board welding according to claim 1, characterized in that: The upper end of the support plate (28) is fixedly connected to a rotating roller (212), a first placement groove (25) is provided on the side of the first fixed body (23), the upper end of the first fixed body (23) is fixedly connected to a second electric telescopic rod (24), the telescopic end of the second electric telescopic rod (24) is fixedly connected to a clamping plate (26) that slidably cooperates with the first placement groove (25), and the first fixed body (23) is fixedly connected to a first anti-slip plate (27) at the lower end surface of the first placement groove (25).

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