A printed circuit board repair assistance device

Abstract

The printed circuit board repair auxiliary device belongs to the technical field of circuit board repair equipment, and comprises a base, a horizontal suspension arm is arranged on the base and can ascend and descend, a sliding block is slidably arranged on the suspension arm, a welding gun is arranged on the sliding block, two clamping plates are arranged below the suspension arm and are slidably arranged on the base, a through slot is arranged on the clamping plate, a supporting plate capable of placing a printed circuit board is arranged in the through slot of the two clamping plates, and a position reaching prompting assembly capable of emitting a sound prompt is arranged between the supporting plate and the clamping plate. The printed circuit board is placed on the supporting plate, the two clamping plates complete clamping and fixing operations, the position reaching prompting assembly is used to prompt the operator in the operation process, the welding gun is adjusted to correspond to the position of the printed circuit board by sliding the sliding block, and then the height of the suspension arm is adjusted, so that stable and efficient maintenance operations on the printed circuit board are completed, and damage to the printed circuit board in the clamping process is prevented.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of circuit board repair equipment, in particular to a printed circuit board repair auxiliary device. BACKGROUND

[0002] The name of the circuit board is: ceramic circuit board, alumina ceramic circuit board, aluminum nitride ceramic circuit board, circuit board, PCB board, aluminum substrate, high-frequency board, thick copper board, impedance board, PCB, ultra-thin circuit board, ultra-thin circuit board, printed (copper etching technology) circuit board, etc. Circuit board makes circuit miniaturization and visualization, and plays an important role in batch production of fixed circuit and optimization of electric appliance layout. The circuit board can be called printed circuit board or printed circuit board, and the English name is (printed circuit board) PCB, (flexible printed circuit board) FPC circuit board (FPC circuit board is also called flexible circuit board. It is a highly reliable, excellent flexible printed circuit board made of polyimide or polyester film. It has the characteristics of high wiring density, light weight, thin thickness and good bending property.) and soft and hard combination plate (reechas, soft and hard combination plate)-FPC and PCB give birth to and develop soft and hard combination plate. Therefore, the soft and hard combination plate is the combination of flexible circuit board and hard circuit board through pressing and other processes according to the relevant process requirements, which forms a circuit board with the characteristics of FPC and PCB. Among them, the PCB board (printed circuit board) is the carrier of electronic components and an important part of electronic industry. Electronic components are generally welded on the PCB board through SMT (surface mount technology) process, which is called PCBA (printed circuit board assembly). When electronic components are installed incorrectly or damaged, the PCB board needs to be repaired to replace the components.

[0003] For defective boards, the already welded components need to be removed and re-welded to complete the repair. This process requires the worker to hold a soldering iron, heat the solder to melt it, and remove the components; after cleaning the pads, the worker holds a soldering iron in one hand and a solder wire in the other hand, aligns the pads on the PCB with the solder wire, and continuously heats the pads, component pins and solder wire with the soldering iron to weld. This manual repair requires high technical skills from the operator. The operator's control of the heating temperature and time of the soldering iron, the control of the amount of solder, and the alignment deviation of the solder wire during welding will directly affect the welding quality of the components, and even damage other normal components and PCB, affecting product yield. In addition, the operator is prone to fatigue, which will affect the repair effect and efficiency.

[0004] At present, there are welding tools for assisting the printing circuit board, which can reduce the working strength of the operator and improve the yield, but in the process of clamping the printing circuit board, due to different size specifications of the printing circuit board, flexible adjustment is required in the clamping process, so that the clamping is unstable or the printing circuit board is damaged due to clamping too tightly. SUMMARY

[0005] In order to solve the problem of high labor intensity and high scrap rate of manual operation, and although the use of auxiliary welding tools can effectively solve the problem of high labor intensity and high scrap rate, there is still a problem of clamping adaptability for different size specifications of the printing circuit board, and the present application provides a circuit board repair auxiliary device.

[0006] The present application is realized by the following technical solutions:

[0007] A printing circuit board repair auxiliary device, comprising a base, a horizontal suspension arm is arranged on the base and can be raised and lowered, a sliding block is arranged on the suspension arm, a welding gun is arranged on the sliding block, two clamping plates are arranged below the suspension arm and are arranged on the base in a sliding manner, a through slot is arranged on each clamping plate, a supporting plate capable of placing a printing circuit board is arranged in the through slot of each clamping plate, and a position reaching prompting component capable of emitting a sound prompt is arranged between the supporting plate and the clamping plate.

[0008] The printing circuit board is placed on the supporting plate, and clamping and fixing are completed by the two clamping plates, the sound generated by the position reaching prompting component is used to prompt the operator during operation, the position of the welding gun on the suspension arm is adjusted to correspond to the position of the printing circuit board, and then the height of the suspension arm is adjusted so that the welding gun acts on the printing circuit board, so that stable and efficient maintenance operation of the printing circuit board can be completed, and damage to the printing circuit board during clamping can be prevented.

[0009] Further improvement of the present application is that a first guide slot is arranged on the side wall of the length direction of the suspension arm, a horizontal first threaded rod is arranged in the first guide slot, and the first threaded rod is driven by a first driving motor arranged outside the suspension arm, the sliding block is arranged in the first guide slot in a sliding manner, and the sliding block is threadedly connected to the outside of the first threaded rod. The rotation of the first threaded rod driven by the first driving motor and the sliding block threadedly connected to the first threaded rod move along the first guide slot under the action of the first guide slot, so that the position of the welding gun is adjusted.

[0010] Further improvement of the present application has still, the base is equipped with U type support column, the U type support column is equipped with electric telescopic push rod, the top of electric telescopic push rod is connected with movable block that realizes up and down sliding with U type support column inner wall cooperation, movable block is connected with suspension arm. Through the lifting of electric telescopic push rod, the adjustment of suspension arm in height is completed by movable block, to realize the distance controllable of welding and printed circuit board.

[0011] Further improvement of the present application has still, the base is equipped with U type support column, the U type support column is equipped with electric telescopic push rod, the top of electric telescopic push rod is connected with movable block that realizes up and down sliding with U type support column inner wall cooperation, movable block is connected with suspension arm. Through the lifting of electric telescopic push rod, the adjustment of suspension arm in height is completed by movable block, to realize the distance controllable of welding and printed circuit board.

[0012] Further improvement of the present application has still, the base is equipped with U type support column, the U type support column is equipped with electric telescopic push rod, the top of electric telescopic push rod is connected with movable block that realizes up and down sliding with U type support column inner wall cooperation, movable block is connected with suspension arm. Through the lifting of electric telescopic push rod, the adjustment of suspension arm in height is completed by movable block, to realize the distance controllable of welding and printed circuit board.

[0013] Further improvement of the present application has still, the base is equipped with U type support column, the U type support column is equipped with electric telescopic push rod, the top of electric telescopic push rod is connected with movable block that realizes up and down sliding with U type support column inner wall cooperation, movable block is connected with suspension arm. Through the lifting of electric telescopic push rod, the adjustment of suspension arm in height is completed by movable block, to realize the distance controllable of welding and printed circuit board.

[0014] Further improvement of the present application has still, the base is equipped with U type support column, the U type support column is equipped with electric telescopic push rod, the top of electric telescopic push rod is connected with movable block that realizes up and down sliding with U type support column inner wall cooperation, movable block is connected with suspension arm. Through the lifting of electric telescopic push rod, the adjustment of suspension arm in height is completed by movable block, to realize the distance controllable of welding and printed circuit board.

[0015] Further improvement of the present application has still, the base is also provided with a second guide groove, the second guide groove is perpendicular to the length direction of the suspension arm in the horizontal plane;The second threaded rod is rotatably arranged in the second guide groove, and the second threaded rod is driven by the second driving motor arranged outside the base;The support table extends into the second guide groove through the connecting piece and is threadedly connected with the second threaded rod. Under the action of the second driving motor, the support table moves along the second guide groove, which helps to complete the situation when the clamp plate is on one side of the suspension arm, the welding gun cannot be corresponded with the printed circuit board up and down.

[0016] Further improvement of the present application has still, the top surface of the base is provided with two parallel sliding grooves, the sliding grooves are perpendicular to the length direction of the suspension arm in the horizontal plane;The bottom surface of the support table is provided with sliding foot columns matched with the sliding grooves. Through the cooperation of the sliding foot columns and the sliding grooves, the moving flexibility of the support table on the base is improved.

[0017] Further improvement of the present application has still, the in-place prompting assembly comprises limiting blocks arranged at intervals along the length direction of the supporting plate, the limiting blocks are arranged on the supporting plate, a push rod matched with the limiting blocks is arranged above the limiting blocks, and the push rod is arranged in the through groove. The two ends of the supporting plate are respectively placed in the through grooves of the two clamping plates, when the clamping plate moves relative to the supporting plate, the sound generated by the contact between the push rod and the limiting block helps to form a sound prompt for the operator to observe the in-place situation of the clamping plate.

[0018] Further improvement of the present application has still, the in-place prompting assembly further comprises a passive top block, the passive top block is arranged in the through groove, the push rod is arranged outside the passive top block, and the upper end of the push rod is connected with the passive top block;In the initial state, the push rod does not contact with the limiting block. When the printed circuit board contacts with the passive top block, with the movement of the clamping plate, the passive top block is pushed out to the outside, the push rod contacts with the limiting block, so that when the printed circuit board is about to be pushed by the clamping plate, the push rod contacts with the limiting block to generate sound, thereby forming a prompt for the operator.

[0019] Further improvement of the present application has still, the clamping plate is further provided with an opening communicated with the through groove, the opening is arranged above the through groove, and the inner top edge of the opening is connected with the passive top block. It is helpful to reduce the opening area of the through groove, so that the through groove and the supporting plate cooperate to prevent the supporting plate from fluctuating up and down.

[0020] Further improvement of the present application has still, the limiting block is in the shape of a right triangle as a whole;The inclined surface of the limiting block is arranged away from the center of the length direction of the supporting plate. That is to say, the limiting blocks on both sides of the center of the length direction of the supporting plate are symmetrically arranged, so that when the push rod contacts with the limiting block, the resistance of the push rod is reduced through the inclined surface.

[0021] Further improvement of the present application is that the supporting plate is further provided with second buffer pads which are uniformly distributed and have a height greater than that of the limiting blocks. When the printed circuit board has pins on the back, the second buffer pads can reduce the wear degree of the printed circuit board.

[0022] Further improvement of the present application is that the inner side of the clamping plate is further provided with a bracket for supporting the supporting plate. The bracket supports the supporting plate.

[0023] From the above technical solutions, the beneficial effects of the present application are as follows: the printed circuit board is placed on the supporting plate, and the clamping and fixing operation is completed by the two clamping plates. In the operation process, the sound generated by the in-place prompting assembly is used to prompt the operator. The position of the welding gun on the suspension arm which slides with the sliding block corresponds to the printed circuit board up and down, and then the height of the suspension arm is operated so that the welding gun acts on the printed circuit board. Thus, stable and efficient maintenance operation of the printed circuit board can be completed, and damage to the printed circuit board during clamping can be prevented. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the present application, the drawings required in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0025] Figure 1 The structural schematic diagram of the specific embodiment of the present application.

[0026] Figure 2 The sectional structural schematic diagram of the specific embodiment of the present application.

[0027] Figure 3 The clamping plate and supporting plate combination schematic diagram of the specific embodiment of the present application.

[0028] Figure 4 The supporting plate and in-place prompting assembly combination schematic diagram of the specific embodiment of the present application.

[0029] Figure 5 The clamping plate structural schematic diagram of the specific embodiment of the present application.

[0030] In the drawings: 10, base, 11, second guide slot, 12, second threaded rod, 13, second drive motor, 14, slide, 20, support table, 21, third guide slot, 22, bidirectional threaded rod, 23, servo motor, 24, sliding foot column, 30, clamping plate, 31, through slot, 311, notch, 32, bracket, 33, first buffer pad, 34, support plate, 341, second buffer pad, 40, in-place prompting assembly, 41, lever, 42, passive top block, 43, limiting block, 50, U-shaped support column, 51, electric telescopic push rod, 52, movable block, 60, suspension arm, 61, first guide slot, 62, first threaded rod, 63, first drive motor, 64, sliding block, 70, welding gun, 80, waste residue collection opening, 81, vacuum pump, 90, air suction head, 91, air extractor. DETAILED DESCRIPTION

[0031] To make the objectives, characteristics and advantages of the present application more obvious and easy to understand, the technical solutions in the present application will be described clearly and completely below in combination with the drawings in the specific embodiments. Obviously, the embodiments described below are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present patent, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present patent.

[0032] As shown in the drawings, Figures 1-5 The printed circuit board repair auxiliary device provided by the present application comprises a base 10, a horizontal suspension arm 60 is arranged on the base 10 to be raised and lowered, a sliding block 64 is arranged on the suspension arm 60 to slide, a welding gun 70 is arranged on the sliding block 64, two clamping plates 30 are arranged below the suspension arm 60 to slide on the base 10, a through slot 31 is arranged on each clamping plate 30, a support plate 34 capable of placing a printed circuit board is arranged in the through slot 31 of each clamping plate 30, and an in-place prompting assembly 40 capable of giving an audible prompt is arranged between the support plate 34 and the clamping plate 30. The printed circuit board is placed on the support plate 34, and clamping and fixing are completed by the two clamping plates 30. In the operation process, the in-place prompting assembly 40 gives a prompt to the operator by sound. The position of the welding gun 70 on the suspension arm 60 is adjusted to correspond to the printed circuit board up and down, and then the height of the suspension arm 60 is adjusted so that the welding gun 70 acts on the printed circuit board. Thus, stable and efficient maintenance operation of the printed circuit board can be completed, and damage to the printed circuit board during clamping can be prevented.

[0033] As shown in the drawings, Figure 5As shown, the clamping plate 30 is further provided with a first buffer pad 33 on its opposite surface. The first buffer pad 33 can effectively increase the friction with the printed circuit board when it is clamped and in contact with the printed circuit board. At the same time, the first buffer pad 33 can also deform to cushion the printed circuit board, thereby reducing the impact of force when clamping the printed circuit board.

[0034] As attached Figure 4 As shown, the positioning indicator component 40 includes limiting blocks 43 spaced apart along the length of the support plate 34. The limiting blocks 43 are disposed on the support plate 34, and a lever 41 cooperating with each limiting block 43 is located above the limiting blocks 43, within a through groove 31. Both ends of the support plate 34 are placed within the through grooves 31 of two clamping plates 30. When the clamping plate moves relative to the support plate 34, the sound emitted by the lever 41 contacting the limiting blocks 43 helps to provide an audible prompt to the operator, encouraging them to observe the positioning of the clamping plates 30.

[0035] As attached Figure 4 As shown, the support plate 34 is also provided with evenly distributed second buffer pads 341, the height of which is greater than the height of the limiting block 43. When there are pins on the back of the printed circuit board, the second buffer pads 341 can reduce the wear on the printed circuit board.

[0036] As attached Figure 3 and 4 As shown, the clamping plate 30 is also provided with a notch 311 communicating with the through groove 31, and the notch 311 is located above the through groove 31; the positioning indicator component 40 also includes a passive top block 42, which is connected to the inner top edge of the notch 311. This helps to reduce the opening area of ​​the through groove 31, so that the through groove 31 cooperates with the support plate 34 to prevent the support plate 34 from fluctuating up and down. The lever 41 is located outside the passive top block 42, and the upper end of the lever 41 is connected to the passive top block 42; in the initial state, the lever 41 does not contact the limiting block 43. When the printed circuit board contacts the passive top block 42, as the clamping plate 30 moves, the passive top block 42 is pushed outward to one side, and the lever 41 contacts the limiting block 43, thus forming a sound only when the printed circuit board is about to be pushed by the clamping plate 30, the lever 41 contacts the limiting block 43, thus forming an urgent reminder to the operator.

[0037] As attached Figure 4As shown, the passive top block 42 is bent towards the inner side of the clamping plate 30 in this embodiment, and the end of the passive top block 42 away from the clamping plate 30 is above the second buffer pad 341, so as to be touched when contacting the printed circuit board. The lever 41 is arranged in an inclined manner, and the free end of the lever 41 is below the lowest point of the passive top block 42. When the passive top block 42 drives the lever 41 to move, the passive top block 42 only contacts the printed circuit board when the lever 41 contacts the limiting block 43, so as to avoid the passive top block 42 interfering with the contact state of the lever 41 and the limiting block 43.

[0038] As shown in the accompanying drawings, Figure 4 As shown, the limiting block 43 is in the shape of a right triangle as a whole; the inclined surface of the limiting block 43 is arranged away from the center of the length direction of the supporting plate 34. That is, the limiting blocks 43 on both sides of the center of the length direction of the supporting plate 34 are symmetrically arranged, so as to reduce the resistance of the lever 41 when the lever 41 contacts the limiting block 43 through the inclined surface.

[0039] In the initial state, the passive top block 42 cooperates with the second buffer pad 341, and the passive top block 42 is above the second buffer pad 341, the free end of the lever 41 is below the second buffer pad 341, and the lever 41 does not contact the limiting block 43, so as to realize that when there is enough safety distance between the clamping plate 30 and the printed circuit board, the supporting plate 34 can move freely relative to the clamping plate 30 without sound interference. When the clamping plate 30 approaches the printed circuit board, the printed circuit board first contacts the passive top block 42, so as to realize that the passive top block 42 rotates in an arc shape towards the outside of the clamping plate 30, at this time, the lever 41 is gradually close to the limiting block 43 under the pushing of the passive top block 42. The distance between the passive top block 42 protruding from the inner side of the clamping plate 30 is greater than the vertical distance between the free end of the lever 41 and the limiting block 43, so as to achieve that until the printed circuit board pushes the passive top block 42 to contact the inner side of the clamping plate 30, the lever 41 and the limiting block 43 can both emit prompt sound due to contact, without interruption, so as to ensure the prompt to the operator.

[0040] As shown in the accompanying drawings, Figures 1-3As shown, the printed circuit board repair auxiliary device comprises a base 10, a horizontal suspension arm 60 is arranged on the base 10 and can be lifted and lowered, a sliding block 64 is arranged on the suspension arm 60 and can slide, a welding gun 70 is arranged on the sliding block 64, two clamping plates 30 are arranged below the suspension arm 60 and can slide relative to each other on the base 10, a through slot 31 is arranged on each clamping plate 30, a supporting plate 34 capable of placing a printed circuit board is arranged in the through slot 31 of each clamping plate 30, and a position reaching prompting assembly 40 capable of giving a sound prompt is arranged between the supporting plate 34 and the clamping plate 30. The printed circuit board is placed on the supporting plate 34, and the clamping and fixing operation is completed by the two clamping plates 30. During the operation, the sound generated by the position reaching prompting assembly 40 prompts the operator. The welding gun 70 on the suspension arm 60 slides with the sliding block 64, and the position of the welding gun 70 is adjusted to correspond to the printed circuit board. Then, the height of the suspension arm 60 is adjusted so that the welding gun 70 acts on the printed circuit board. Thus, stable and efficient maintenance operation of the printed circuit board can be completed, and damage to the printed circuit board during clamping can be prevented.

[0041] As shown in the accompanying drawings, Figure 3 As shown, the inner side of the clamping plate 30 is further provided with a bracket 32 supporting the supporting plate 34. The bracket 32 supports the supporting plate 34. The bracket 32 is arranged in a whole eight-shaped structure on the clamping plate 30, and the two edges of the bracket 32 are long and short.

[0042] In the initial state, when the two clamping plates 30 move towards each other to clamp the printed circuit board, the bracket 32 is used to support the supporting plate 34. When the distance between the two clamping plates 30 is less than the length of the two brackets 32, the bracket 32 is in an eight-shaped structure, that is, the distance between the two edges of the bracket 32 gradually decreases away from the clamping plate 30. When the two brackets 32 on the two clamping plates 30 contact, they can be deformed due to the inclination, which helps to prevent the distance between the two clamping plates 30 from being adjusted.

[0043] As shown in the accompanying drawings, Figure 1 and 2As shown, the printed circuit board repair auxiliary device comprises a base 10, a horizontal suspension arm 60 is arranged on the base 10, a sliding block 64 is arranged on the suspension arm 60, a welding gun 70 is arranged on the sliding block 64, two clamping plates 30 are arranged below the suspension arm 60, and the two clamping plates 30 are arranged on the base 10 in a sliding manner; a through slot 31 is arranged on the clamping plate 30, a supporting plate 34 capable of placing a printed circuit board is arranged in the through slot 31 of the clamping plate 30, and a position prompting assembly 40 capable of giving a sound prompt is arranged between the supporting plate 34 and the clamping plate 30. The printed circuit board is placed on the supporting plate 34, and the clamping and fixing operation is completed by the two clamping plates 30. In the operation process, the sound generated by the position prompting assembly 40 prompts the operator; the position of the welding gun 70 on the suspension arm 60 is adjusted to correspond to the printed circuit board in an up-down manner, and then the height of the suspension arm 60 is adjusted so that the welding gun 70 acts on the printed circuit board; thereby, stable and efficient maintenance operation of the printed circuit board can be completed, and damage to the printed circuit board during clamping can be prevented.

[0044] As shown in the accompanying drawings, Figure 1 and 2 As shown in the accompanying drawings, a first guide groove 61 is arranged on the side wall of the length direction of the suspension arm 60, a horizontal first threaded rod 62 is arranged in the first guide groove 61, and the first threaded rod 62 is driven by a first driving motor 63 arranged outside the suspension arm 60. The sliding block 64 is arranged in the first guide groove 61 in a sliding manner, and the sliding block 64 is threadedly connected to the outside of the first threaded rod 62. The rotation of the first threaded rod 62 is driven by the first driving motor 63, the sliding block 64 threadedly connected to the first threaded rod 62 moves along the first guide groove 61 under the action of the first guide groove 61, and the position of the welding gun 70 is adjusted.

[0045] As shown in the accompanying drawings, Figure 1 and 2 As shown in the accompanying drawings, a U-shaped support column 50 is arranged on the base 10, an electric telescopic push rod 51 is arranged in the U-shaped support column 50, a movable block 52 capable of sliding up and down in cooperation with the inner wall of the U-shaped support column 50 is connected to the top end of the electric telescopic push rod 51, and the movable block 52 is connected to the suspension arm 60. The height of the suspension arm 60 is adjusted by the movable block 52 driven by the electric telescopic push rod 51, so that the distance between the welding gun and the printed circuit board is controllable.

[0046] As shown in the accompanying drawings, Figure 1 and 2As shown, the base 10 is also provided with a support table 20, the inside of the support table 20 is a hollow structure, and a two-way threaded rod 22 is rotatably arranged in the hollow structure, and the two-way threaded rod 22 is driven by a servo motor 23 arranged outside the support table 20; the tabletop of the support table 20 is provided with a third guide groove 21 in communication with the internal hollow structure, and two clamping plates 30 extend into the inside of the support table 20 through the third guide groove 21 and are threadedly connected to different threaded segments of the two-way threaded rod 22. Through the driving effect of the two-way threaded rod 22 under the action of the servo motor 23, the two clamping plates 30 on the different threaded segments of the two-way threaded rod 22 can move towards or away from each other along the third guide groove 21, which helps to complete the clamping and loosening operation of the printed circuit board.

[0047] As shown in the accompanying drawings Figure 1 and 2 As shown, the third guide groove 21 is provided with one or two; when the third guide groove 21 is one, the two clamping plates 30 are both in the same third guide groove 21 and can approach infinitely; when the third guide groove 21 is two, the two clamping plates 30 are respectively in two different third guide grooves 21, which helps to limit the minimum spacing of the two clamping plates 30 and prevent the printed circuit board from being damaged; at the same time, it can also prevent the probability of parts falling into the third guide groove 21.

[0048] As shown in the accompanying drawings Figure 1 and 2 As shown, the base 10 is also provided with a second guide groove 11, and the second guide groove 11 is perpendicular to the length direction of the suspension arm 60 in the horizontal plane; a second threaded rod 12 is rotatably arranged in the second guide groove 11, and the second threaded rod 12 is driven by a second drive motor 13 arranged outside the base 10; the support table 20 extends into the second guide groove 11 through a connecting piece and is threadedly connected with the second threaded rod 12. Under the driving effect of the second drive motor 13, the support table 20 moves along the second guide groove 11, which helps to complete the situation that the clamping plate 30 is on one side of the suspension arm 60 and cannot realize the up-and-down correspondence between the welding gun 70 and the printed circuit board.

[0049] As shown in the accompanying drawings Figure 1 and 2 As shown, the top surface of the base 10 is provided with two parallel slideways 14, and the slideways 14 are perpendicular to the length direction of the suspension arm 60 in the horizontal plane; the bottom surface of the support table 20 is provided with a sliding column 24 matched with the slideways 14. Through the cooperation of the sliding column 24 and the slideway 14, the moving flexibility of the support table 20 on the base 10 is improved.

[0050] As shown in the accompanying drawings Figure 1 and 2As shown, the printed circuit board repair auxiliary device comprises a base 10, a horizontal suspension arm 60 is arranged on the base 10 in a lifting manner, a sliding block 64 is arranged on the suspension arm 60 in a sliding manner, a welding gun 70 is arranged on the sliding block 64, two clamping plates 30 are arranged below the suspension arm 60, and the two clamping plates 30 are arranged on the base 10 in a sliding manner; a through slot 31 is arranged on the clamping plate 30, a supporting plate 34 capable of placing a printed circuit board is arranged in the through slot 31 of the clamping plate 30, and a position reaching prompting assembly 40 capable of giving a sound prompt is arranged between the supporting plate 34 and the clamping plate 30. The printed circuit board is placed on the supporting plate 34, and the clamping and fixing operation is completed by the two clamping plates 30. In the operation process, the sound generated by the position reaching prompting assembly 40 prompts the operator; the position of the welding gun 70 on the suspension arm 60 is adjusted to correspond to the printed circuit board in an up-down manner, and then the height of the suspension arm 60 is adjusted so that the welding gun 70 acts on the printed circuit board; thereby, stable and efficient maintenance operation of the printed circuit board can be completed, and damage to the printed circuit board during clamping can be prevented.

[0051] As shown in the accompanying drawings Figure 1 and 2 As shown, a waste residue collecting port 80 is arranged on the sliding block 64, the waste residue collecting port 80 is arranged on one side of the welding gun 70, and the waste residue collecting port 80 is communicated with a vacuum pump 81 arranged on the suspension arm 60 through a pipeline; an air suction head 90 is arranged on the sliding block 64 on the other side of the welding gun 70 away from the waste residue collecting port 80, and the air suction head 90 is communicated with an air extractor 91 arranged on the suspension arm 60 through a pipeline. After the printed circuit board is heated by the welding gun 70, for the processing point needing repair, the waste residue collecting port 80 is used to collect the melted welding point under the action of the vacuum pump 81, which helps to provide a clean and fast operation environment; the air suction head 90 on the other side can collect the smoke generated on the working surface due to high temperature under the action of the air extractor 91, which helps to improve the operator's vision.

[0052] As shown in the accompanying drawings Figure 1 In this embodiment, the sliding block 64 is in the shape of an inverted T, that is, the horizontal side of the T is arranged downward, which is used to support the waste residue collecting port 80 and the air suction head 90, and facilitate the timely treatment of waste residue and smoke generated during operation. Considering the convenience of actual operation, the horizontal side of the T-shaped structure of the sliding block 64 can rotate freely relative to the vertical side, which helps to realize the direction adjustment of different specifications of printed circuit boards.

[0053] The printed circuit board repair auxiliary device places the printed circuit board on the supporting plate 34, and completes the clamping and fixing operation through the two clamping plates 30, and prompts the operator by the sound generated by the in-place prompting assembly 40 during the operation; the welding gun 70 on the suspension arm 60 adjusts the position corresponding to the printed circuit board, and then operates the height of the suspension arm 60 so that the welding gun 70 acts on the printed circuit board; so as to complete the stable and efficient maintenance operation of the printed circuit board, and also help to prevent the printed circuit board from being damaged during clamping.

[0054] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same or similar parts between the various embodiments can be referred to each other.

[0055] The terms "upper", "lower", "outer", "inner" and the like in the specification and claims of the present application and the above-described drawings, if any, are used to distinguish the relative position relationship, and do not have to be given a nature. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0056] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to the embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A printed circuit board repair auxiliary device, comprising a base (10), a horizontal suspension arm (60) is arranged on the base (10) in a lifting and lowering manner, a sliding block (64) is arranged on the suspension arm (60) in a sliding manner, and a soldering gun (70) is arranged on the sliding block (64), characterized in that, Two clamping plates (30) are arranged below the suspension arm (60) and are arranged on the base (10) in a sliding manner; a through slot (31) is arranged on the clamping plate (30), and a supporting plate (34) capable of placing a printed circuit board is arranged in the through slot (31) of the two clamping plates (30); a to-position prompting assembly (40) capable of giving an audible prompt is arranged between the supporting plate (34) and the clamping plate (30); the to-position prompting assembly (40) comprises limiting blocks (43) arranged in a spaced manner along the length direction of the supporting plate (34), the limiting blocks (43) are arranged on the supporting plate (34), a push rod (41) matched with the limiting blocks (43) is arranged above the limiting blocks (43), and the push rod (41) is arranged in the through slot (31); the to-position prompting assembly (40) further comprises a passive top block (42), the passive top block (42) is arranged in the through slot (31), the push rod (41) is arranged outside the passive top block (42), and the upper end of the push rod (41) is connected with the passive top block (42); in an initial state, the push rod (41) is not in contact with the limiting blocks (43); the limiting blocks (43) have a whole right-angled triangular structure; the inclined surface of the limiting blocks (43) is arranged away from the center of the length direction of the supporting plate (34); the push rod (41) is arranged in an inclined manner, and the free end of the push rod (41) is below the lowest point of the passive top block (42); the limiting blocks (43) have a whole right-angled triangular structure; the inclined surface of the limiting blocks (43) is arranged away from the center of the length direction of the supporting plate (34); the distance from the passive top block (42) to the inner side of the clamping plate (30) is greater than the distance from the free end of the push rod (41) to the limiting blocks (43) in a perpendicular manner; an opening (311) in communication with the through slot (31) is further arranged on the clamping plate (30), and the opening (311) is arranged above the through slot (31); second buffer pads (341) are uniformly arranged on the supporting plate (34), and the height of the second buffer pads (341) is greater than the height of the limiting blocks (43); The inner side of the clamping plate (30) is provided with a splayed bracket (32) for supporting the supporting plate (34), and the two edges of the bracket (32) are of different lengths; the passive top block (42) has a structure bent towards the inner side of the clamping plate (30), and the end of the passive top block (42) away from the clamping plate (30) is above the second buffer pad (341); the free end of the push rod (41) is below the lowest point of the passive top block (42), and the push rod (41) is not in contact with the limiting blocks (43) in the initial state.

2. The printed circuit board rework aid of claim 1, wherein, A first guide slot (61) is arranged on the side wall in the length direction of the suspension arm (60), a horizontal first threaded rod (62) is arranged in the first guide slot (61), and the first threaded rod (62) is driven by a first driving motor (63) arranged outside the suspension arm (60); a sliding block (64) is arranged in the first guide slot (61) in a sliding manner, and the sliding block (64) is threadedly connected outside the first threaded rod (62).

3. The printed circuit board repair aid of claim 1, wherein, The base (10) is provided with a U-shaped support column (50), the U-shaped support column (50) is internally provided with an electric telescopic push rod (51), the top end of the electric telescopic push rod (51) is connected with a movable block (52) which realizes up and down sliding in cooperation with the inner wall of the U-shaped support column (50), and the movable block (52) is connected with the suspension arm (60).

4. The printed circuit board repair aid of claim 1, wherein, The sliding block (64) is provided with a waste residue collecting opening (80), the waste residue collecting opening (80) is arranged on one side of the welding gun (70), and the waste residue collecting opening (80) is in communication with a vacuum pump (81) arranged on the suspension arm (60) through a pipeline; the sliding block (64) on the other side of the welding gun (70) away from the waste residue collecting opening (80) is provided with a suction head (90), and the suction head (90) is in communication with an air extractor (91) arranged on the suspension arm (60) through a pipeline.

5. The printed circuit board repair aid of claim 1, wherein, The base (10) is further provided with a support table (20), the support table (20) is internally hollow, and a bidirectional threaded rod (22) is rotationally arranged in the hollow structure, and the bidirectional threaded rod (22) is driven by a servo motor (23) arranged outside the support table (20); the surface of the support table (20) is provided with a third guide groove (21) in communication with the internal hollow structure, and the two clamping plates (30) extend into the inside of the support table (20) through the third guide groove (21) and are threadedly connected to different threaded segments of the bidirectional threaded rod (22).

6. The printed circuit board repair aid of claim 5, wherein, The base (10) is further provided with a second guide groove (11), and the second guide groove (11) is perpendicular to the length direction of the suspension arm (60) in the horizontal plane; a second threaded rod (12) is rotationally arranged in the second guide groove (11), and the second threaded rod (12) is driven by a second driving motor (13) arranged outside the base (10); the support table (20) extends into the second guide groove (11) through a connecting piece and is threadedly connected with the second threaded rod (12).

7. The printed circuit board repair aid of claim 5, wherein, The top surface of the base (10) is provided with two parallel sliding grooves (14), and the sliding grooves (14) are perpendicular to the length direction of the suspension arm (60) in the horizontal plane; the bottom surface of the support table (20) is provided with sliding foot columns (24) matched with the sliding grooves (14).

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