CN219484476U

CN219484476U - Small-size circuit board centre gripping strutting arrangement

Info

Publication number: CN219484476U
Application number: CN202223104315.XU
Authority: CN
Inventors: 雷佩; 杨天标
Original assignee: Zhengzhou University of Light Industry
Current assignee: Zhengzhou University of Light Industry
Priority date: 2022-11-22
Filing date: 2022-11-22
Publication date: 2023-08-08
Anticipated expiration: 2032-11-22

Abstract

The utility model discloses a small circuit board clamping and supporting device, which solves the problems of low welding efficiency and poor welding effect of small circuit boards in the prior art. The utility model comprises a base and a rotary disk, wherein the rotary disk is rotatably arranged on the base, a fan bracket is fixedly arranged on the base, and a small fan with an adjustable angle is arranged on the fan bracket; two L-shaped clamping plates and a driving mechanism for driving the L-shaped clamping plates to move relatively are symmetrically arranged on the rotating disc; the L-shaped clamping plate is provided with a horizontal clamping boss on the opposite surface, the L-shaped clamping plate is provided with a mounting groove along the vertical direction, a telescopic tube is arranged in the mounting groove, and a turnover clamp is arranged on the telescopic tube. According to the utility model, the regular circuit board is stably clamped through the L-shaped clamping plate, the irregular and regular circuit board can be clamped through the turnover type clamp, and the circuit board can be driven to turn over, so that the front and back sides of the circuit board can be conveniently operated, and the welding efficiency and the welding safety are further improved.

Description

Small-size circuit board centre gripping strutting arrangement

Technical Field

The utility model relates to the technical field of circuit board welding, in particular to a small circuit board clamping and supporting device.

Background

In the existing engineering training, various electronic components are required to be welded on a small circuit board. In the existing training, a circuit board is placed on a tabletop, the circuit board is easy to slide, the accurate use of an electric soldering iron is affected, the contact performance of a welded electric element is poor, and the situation that the electric soldering iron cannot be used often occurs during testing; and when the electric soldering iron is used, the electric soldering iron is easy to scald skin due to the fact that a proper supporting and positioning device is not arranged, and potential safety hazards exist.

The existing circuit board positioning device, such as the circuit board welding fixture with publication number CN 211102041U, can clamp and fix the circuit board to a certain extent, but can not turn over, which is not beneficial to the front and back operation of the circuit board. And can not cool in time in the welding process, influence welding efficiency. In addition, the applicability to the special-shaped circuit board is not high, and the utilization rate of the special-shaped circuit board is further affected.

Disclosure of Invention

Aiming at the defects in the background technology, the utility model provides a small circuit board clamping and supporting device, which solves the problems of low welding efficiency and poor welding effect of the small circuit board in the prior art.

The technical scheme of the utility model is realized as follows: a small circuit board clamping and supporting device comprises a base and a rotating disk, wherein the rotating disk is rotatably arranged on the base, a fan bracket is fixedly arranged on the base, and a small fan with an adjustable angle is arranged on the fan bracket; two L-shaped clamping plates and a driving mechanism for driving the L-shaped clamping plates to move relatively are symmetrically arranged on the rotating disc; the L-shaped clamping plate is provided with a horizontal clamping boss on the opposite surface, the L-shaped clamping plate is provided with a mounting groove along the vertical direction, a telescopic tube is arranged in the mounting groove, and a turnover clamp is arranged on the telescopic tube.

The rotary disk comprises an upper disk body and a lower disk body, wherein the upper disk body and the lower disk body are rectangular disk bodies, a rotary shaft is fixed at the bottom of the lower disk body, the rotary shaft is rotatably arranged in a through hole formed in a base, the upper disk body and the lower disk body are fixedly arranged at the same central line, and a driving mechanism is positioned between the upper disk body and the lower disk body.

The four corners of the lower disc body are provided with screw sleeves, the upper disc body is fixedly connected with the lower disc body through the screw fit of the locking bolt and the screw sleeves, and the upper disc body can be provided with a limiting through groove for the sliding of the L-shaped clamping plate.

The driving mechanism comprises a spiral rotary table and a toothed plate arranged on the bottom surface of the L-shaped clamping plate, the spiral rotary table is rotationally arranged on a central shaft positioned at the center of the lower disc body, a spiral toothed rail is arranged on the upper surface of the upper disc body, the toothed plate is meshed with the spiral toothed rail, and the toothed plate drives the L-shaped clamping plate to perform relative or separation movement in the limiting through groove under the rotation action of the spiral rotary table.

The spiral turntable is a disc, and the diameter of the disc is greater than or equal to the length of the diagonal line of the rectangular disc body.

The telescopic sleeve comprises an outer rectangular sleeve fixed in the mounting groove, an inner rectangular sleeve is arranged in the rectangular sleeve, a jacking bolt corresponding to the inner rectangular sleeve is arranged on the outer rectangular sleeve, a support plate is arranged on the inner rectangular sleeve, and the turnover clamp is located on the support plate.

The turnover fixture comprises a horizontal sleeve fixed on the support plate, a turnover shaft is rotationally arranged in the horizontal sleeve, one end of the turnover shaft extends out of the horizontal sleeve and is provided with a U-shaped frame, and a plate clamp is arranged on the U-shaped frame.

The turning shaft is provided with a driven bevel gear, the horizontal sleeve is rotatably provided with a bevel gear shaft, the driven bevel gear is meshed with a bevel gear part of the bevel gear shaft, and a shaft part of the bevel gear shaft is connected with a hand wheel.

The beneficial effects of the utility model are as follows: according to the utility model, the regular circuit board is stably clamped through the L-shaped clamping plate, the irregular and regular circuit board can be clamped through the turnover type clamp, and the circuit board can be driven to turn over, so that the front and back sides of the circuit board can be conveniently operated, and the welding efficiency and the welding safety are further improved. The utility model adopts the spiral disc type driving mechanism, ensures the smoothness of opening and closing of the L-shaped clamping plate, is convenient for adjustment, and can carry out protective clamping on the circuit board. In addition, the utility model adopts the small fan to perform timely air cooling operation on the welding circuit board, improves the cooling efficiency of the welding circuit board, and simultaneously effectively prevents welding scalding. The utility model has smart mechanical structure design, can be manually operated, has low cost, is convenient for flexible operation, greatly reduces the potential safety hazard in engineering training, and has higher practicability.

Drawings

In order to more clearly illustrate the embodiments of the present utility model, the drawings that are required for the description of the embodiments will be briefly described below, it being apparent that the drawings in the following description are only some embodiments of the present utility model and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.

FIG. 1 is a schematic diagram of the overall structure of the present utility model.

Fig. 2 is a schematic diagram showing the cooperation between the L-shaped clamping plate and the spiral turntable in embodiment 2.

Fig. 3 is a schematic diagram showing the mounting state of the upper tray and the spiral turntable in embodiment 2.

Fig. 4 is a left side axial schematic view of the L-shaped clamping plate.

Fig. 5 is a right side axial schematic view of the L-shaped clamping plate.

Fig. 6 is a schematic diagram of a flip-type clamp structure.

Fig. 7 is a schematic view of the internal structure of the flip-type clamp.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1, in embodiment 1, a small circuit board clamping and supporting device includes a base 1 and a rotating disc 2, wherein the rotating disc 2 is rotatably disposed on the base 1, and the rotating disc can rotate relative to the base, so that an operation angle in a horizontal plane can be changed. The fan support 4 is fixedly arranged on the base 1, the small fan 5 with an adjustable angle is arranged on the fan support 4, the fan support can be a flexible support, the position of the small fan can be conveniently changed, the small fan is enabled to be opposite to the welding circuit board, the welding circuit board is subjected to air cooling operation, the cooling efficiency is improved, and meanwhile welding scalding is effectively prevented. The illuminating lamp can be arranged on the fan bracket as required, so that the welding definition is improved, and the welding safety operation is also convenient. Two L-shaped clamping plates 3 and a driving mechanism 6 for driving the L-shaped clamping plates 3 to move relatively are symmetrically arranged on the rotating disc 2; under the action of the driving mechanism, the two L-shaped clamping plates can move in opposite directions or in opposite directions, and the regular circuit board can be stably clamped under the action of the two L-shaped clamping plates; wherein the regular circuit board is a rectangular circuit board or two opposite side-planar circuit boards. The opposite surfaces of the L-shaped clamping plate 3 are provided with horizontal clamping bosses 7, the horizontal clamping bosses 7 are close to the upper parts of the L-shaped clamping plates, and the horizontal clamping bosses 7 are used for supporting regular circuit boards. The L-shaped clamping plate 3 is provided with a mounting groove 8 along the vertical direction, the mounting groove is communicated left and right, a telescopic tube 9 is arranged in the mounting groove 8, the telescopic tube 9 is provided with a turnover clamp 10, the height of the turnover clamp is adjustable under the action of the telescopic tube, the turnover clamp can be used for clamping irregular and regular circuit boards and can drive the circuit boards to turn over, and the front and back sides of the circuit boards are convenient to operate; when the telescopic tube 9 is in a contracted state, the turnover clamp 10 is positioned below the horizontal clamping boss 7 and in the mounting groove 8, and does not interfere with the circuit board on the horizontal clamping boss 7.

The rotary disc 2 in this embodiment includes an upper disc 21 and a lower disc 22, and the upper disc 21 and the lower disc 22 are rectangular discs and have the same size. A rotating shaft is fixed at the bottom of the lower disc body 22 and is rotatably arranged in a through hole formed in the base 1; to prevent unnecessary rotation of the shaft, a tightening screw may be provided on the sidewall of the lower tray 22. The upper tray 21 and the lower tray 22 are fixedly arranged with the same central line, and the driving mechanism 6 is positioned between the upper tray 21 and the lower tray 22. In this embodiment, the driving mechanism may adopt a screw rod and slide block mechanism, the slide blocks are fixedly connected with the corresponding L-shaped clamping plates, the directions of internal threads of the slide blocks on the two L-shaped clamping plates are opposite, and the motor or the manual driving screw rod rotates, so that the relative or separate movement of the two L-shaped clamping plates is realized.

Further preferably, threaded sleeves 23 are arranged at four corners of the lower disc body 22, the upper disc body 21 is fixedly connected with the lower disc body 22 through threaded matching of locking bolts 24 and the threaded sleeves 23, gaps convenient for installing a driving mechanism 6 are reserved between the upper disc body and the lower disc body due to arrangement of the threaded sleeves, limiting through grooves 25 for sliding of the L-shaped clamping plates 3 can be formed in the upper disc body 21, and the L-shaped clamping plates can only slide in the limiting grooves under the action of the driving mechanism, so that stable clamping of a circuit board is realized.

As shown in fig. 2 and 3, in embodiment 2, a small circuit board clamping and supporting device is different from embodiment 1 in that the driving mechanism 6 in this embodiment includes a spiral turntable 61 and a toothed plate 62 disposed on the bottom surface of the L-shaped clamping plate 3, and the teeth of the toothed plate are arc-shaped teeth matching with the spiral toothed rail. The screw rotary disk 61 is rotatably disposed on a central shaft located at the center of the lower disk 22, the central shaft is fixed on the lower disk, the height of the central shaft is not greater than the height of the threaded sleeve 23, and the screw rotary disk is connected with the central column through a bearing. The spiral turntable 61 is provided with a spiral toothed rail 62 on the upper surface facing the upper tray body 21, the toothed plate 62 is meshed with the spiral toothed rail 62, and under the rotation action of the spiral turntable 61, the toothed plate drives the L-shaped clamping plate 3 to perform relative or separation movement in the limiting through groove 25. As a preferred scheme, the spiral turntable 61 is a disc, the diameter of the disc is greater than or equal to the diagonal length of the rectangular disc body, so that the spiral turntable 61 can be exposed out of the upper disc body and the lower disc body, anti-skidding patterns are arranged on the outer circumference of the disc, and the opening and closing movement of the two L-shaped clamping plates 3 is realized by manually rotating the spiral turntable, so that the operation is convenient.

As shown in fig. 4 and 5, in this embodiment, the telescopic tube 9 includes an outer rectangular tube 91 fixed in the mounting groove 8, an inner rectangular tube 92 is disposed in the rectangular tube 91, a tightening bolt 93 corresponding to the inner rectangular tube 92 is disposed on the outer rectangular tube 91, and the inner rectangular tube is tightened in the outer rectangular tube by rotating the tightening bolt, so that the inner rectangular tube is at a stable and proper height. In order to improve the locking effect, a plurality of positioning holes can be formed in the inner rectangular sleeve, and the jacking bolts 93 are matched with the positioning holes to further achieve the locking effect. The inner rectangular sleeve can be made of a light material such as plastic, and the locking mechanism can be a tightening bolt in diameter. The inner rectangular sleeve 92 is provided with a support plate 94, and the flip-type clamp 10 is positioned on the support plate 94. The height of the turnover type clamp 10 is adjusted through the telescopic action of the telescopic tube, and the turnover type clamp extends out of the mounting groove when working and is lower than the horizontal clamping boss 7 when not working.

As shown in fig. 6, the turnover fixture 10 in this embodiment includes a horizontal sleeve 101 fixed on the support plate 94, a turnover shaft 102 is rotatably disposed in the horizontal sleeve 101, one end of the turnover shaft 102 extends out of the horizontal sleeve 101 and is provided with a U-shaped frame 103, and a plate clip 104 is disposed on the U-shaped frame 103. The direction of the circuit board on the board clamp is changed through rotation of the turnover shaft, so that front and back welding operation is conveniently performed on the circuit board, welding efficiency is improved, welding points and components are protected, and friction with a tabletop is avoided. The board clamp in this embodiment can adopt current anchor clamps, including the articulated punch holder of axle and lower plate promptly, is equipped with torsion spring between two splint, and articulated axle connects on U type frame, in order to avoid splint to cause the damage to the circuit board, can set up the cushion at its clamping part, can play the tight effect of clamp, can protect the circuit board again.

As shown in fig. 7, the following structure is adopted to facilitate the rotation of the turning shaft: the turning shaft 102 is provided with a driven bevel gear 105, the horizontal sleeve 101 is rotatably provided with a bevel gear shaft 106, the driven bevel gear 105 is meshed with a bevel gear part of the bevel gear shaft 106, and a shaft part of the bevel gear shaft 106 is connected with a hand wheel 107. When the automatic welding device is used, the bevel gear shaft 106 is driven to rotate through the hand wheel, the turnover shaft 102 is driven to rotate through the driven bevel gear, the front side and the back side of the circuit board clamped by the plate clamp are further switched, meanwhile, the bevel gear pair has a self-locking function, the circuit board is ensured to be in a stable plane state, and welding safety and welding efficiency are improved.

Other structures are the same as in embodiment 1.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. A small-size circuit board centre gripping strutting arrangement, its characterized in that: the intelligent air conditioner comprises a base (1) and a rotary disc (2), wherein the rotary disc (2) is rotatably arranged on the base (1), a fan bracket (4) is fixedly arranged on the base (1), and a small fan (5) with an adjustable angle is arranged on the fan bracket (4); two L-shaped clamping plates (3) and a driving mechanism (6) for driving the L-shaped clamping plates (3) to move relatively are symmetrically arranged on the rotating disc (2); the horizontal clamping boss (7) is arranged on the opposite surface of the L-shaped clamping plate (3), the L-shaped clamping plate (3) is provided with a mounting groove (8) along the vertical direction, a telescopic tube (9) is arranged in the mounting groove (8), and a turnover clamp (10) is arranged on the telescopic tube (9).

2. The miniature circuit board clamping and supporting device according to claim 1, wherein: the rotary disk (2) comprises an upper disk body (21) and a lower disk body (22), the upper disk body (21) and the lower disk body (22) are rectangular disk bodies, a rotary shaft is fixed at the bottom of the lower disk body (22), the rotary shaft is rotatably arranged in a through hole formed in the base (1), the upper disk body (21) and the lower disk body (22) are fixedly arranged on the same central line, and the driving mechanism (6) is located between the upper disk body (21) and the lower disk body (22).

3. The miniature circuit board clamping and supporting device according to claim 2, wherein: screw sleeves (23) are arranged at four corners of the lower disc body (22), the upper disc body (21) is fixedly connected with the lower disc body (22) through screw matching of locking bolts (24) and the screw sleeves (23), and limiting through grooves (25) for sliding of the L-shaped clamping plates (3) can be formed in the upper disc body (21).

4. A miniature circuit board clamping and supporting device according to claim 2 or 3, characterized in that: the driving mechanism (6) comprises a spiral rotary table (61) and a toothed plate (62) arranged on the bottom surface of the L-shaped clamping plate (3), the spiral rotary table (61) is rotationally arranged on a central shaft positioned at the center of the lower disc body (22), a spiral toothed rail is arranged on the upper surface of the upper disc body (21) in the direction of the spiral rotary table (61), the toothed plate (62) is meshed with the spiral toothed rail, and the toothed plate drives the L-shaped clamping plate (3) to perform relative or separation movement in the limiting through groove (25) under the rotation action of the spiral rotary table (61).

5. The miniature circuit board clamping and supporting device as set forth in claim 4, wherein: the spiral turntable (61) is a disc, and the diameter of the disc is larger than or equal to the diagonal length of the rectangular disc body.

6. The small circuit board clamping and supporting device according to any one of claims 1-3 and 5, wherein: the telescopic sleeve (9) comprises an outer rectangular sleeve (91) fixed in the mounting groove (8), an inner rectangular sleeve (92) is arranged in the rectangular sleeve (91), a jacking bolt (93) corresponding to the inner rectangular sleeve (92) is arranged on the outer rectangular sleeve (91), a support plate (94) is arranged on the inner rectangular sleeve (92), and the turnover clamp (10) is arranged on the support plate (94).

7. The miniature circuit board clamping and supporting device as set forth in claim 6, wherein: the turnover fixture (10) comprises a horizontal sleeve (101) fixed on the support plate (94), a turnover shaft (102) is rotationally arranged in the horizontal sleeve (101), one end of the turnover shaft (102) extends out of the horizontal sleeve (101) and is provided with a U-shaped frame (103), and a plate clamp (104) is arranged on the U-shaped frame (103).

8. The miniature circuit board clamping and supporting device as set forth in claim 7, wherein: the turnover shaft (102) is provided with a driven bevel gear (105), the horizontal sleeve (101) is rotatably provided with a bevel gear shaft (106), the driven bevel gear (105) is meshed with a bevel gear part of the bevel gear shaft (106), and a shaft part of the bevel gear shaft (106) is connected with a hand wheel (107).