CN211388408U

CN211388408U - Utilize frock of leaf spring anchor clamps fixed PCB board

Info

Publication number: CN211388408U
Application number: CN201921895576.3U
Authority: CN
Inventors: 麦伟东; 李金棠; 黄达许
Original assignee: Shenzhen Micronic Technology Co ltd
Current assignee: Shenzhen Micronic Technology Co ltd
Priority date: 2019-11-05
Filing date: 2019-11-05
Publication date: 2020-09-01
Anticipated expiration: 2029-11-05

Abstract

The utility model relates to a PCB board detects technical field, specifically is an utilize frock of leaf spring anchor clamps fixed PCB board, including two upper and lower centre gripping fixing device, two from top to bottom centre gripping fixing device's structure is identical, and the two is located between two first splint, every two second splint of two mutual symmetries around and two mutual symmetrical second splint around all including equal fixedly connected with on the first splint two fixed connecting rods that are parallel to each other. The utility model discloses a two upper and lower centre gripping fixing device's setting, can realize the leaf spring anchor clamps and put the fixed of lath to realize the PCB board at the leaf spring anchor clamps and put the fixed between the lath, guarantee to fly needle test machine PCB board can steady firm under normal operating condition, and through the setting of leaf spring, can float in a flexible way from top to bottom at the in-process of centre gripping, consequently can realize fixing no flange limit PCB board even to the narrow plate limit, and then promote full-automatic needle test machine complete machine performance that flies.

Description

Utilize frock of leaf spring anchor clamps fixed PCB board

Technical Field

The utility model relates to a PCB board detects technical field, specifically is a utilize frock of leaf spring anchor clamps fixed PCB board.

Background

The PCB is widely applied to the field of electronic equipment by virtue of the advantages of system miniaturization, light weight, high speed of signal transmission and the like, so that the demand of the PCB is more and more large, in the production process of the PCB, a flying probe tester can be used for carrying out delivery quality detection on the PCB, but a clamp on the existing flying probe tester generally realizes the fixation of the PCB by hard means such as screws, and the fixation mode is too hard and can not be loosened, so that the PCB with narrow process edges or even without process edges can not be fixed, and the test efficiency of the whole machine is greatly reduced. In view of this, we propose a fixture for fixing a PCB board using a plate spring clamp.

SUMMERY OF THE UTILITY MODEL

In order to compensate the above deficiency, the utility model provides an utilize frock of leaf spring anchor clamps fixed PCB board.

The technical scheme of the utility model is that:

a tool for fixing a PCB by using a plate spring clamp comprises an upper clamping fixing device and a lower clamping fixing device, wherein the upper clamping fixing device and the lower clamping fixing device are completely same in structure and respectively comprise a front first clamping plate and a rear first clamping plate which are symmetrical to each other and a front second clamping plate and a rear second clamping plate which are symmetrical to each other, the two second clamping plates are positioned between the two first clamping plates, each first clamping plate is fixedly connected with an upper fixed connecting rod and a lower fixed connecting rod which are parallel to each other, one side of each fixed connecting rod is respectively provided with a lower connecting rod and an upper connecting rod, a connecting plate is respectively arranged between the lower connecting rod and the fixed connecting rods and between the upper connecting rod and the fixed connecting rods, the tail ends of the lower connecting rod and the upper connecting rod are respectively fixedly connected with a lower rotating wheel and an upper rotating wheel, the lower rotating wheel and the upper rotating wheel are connected through belt transmission, the tail end of the, the plate placing strip is clamped and fixed between two second clamping plates on the clamping and fixing device positioned below, and the PCB is fixed between the plate spring clamp and the plate placing strip.

Preferably, the two second clamping plates are hinged with each other.

Preferably, the first clamping plate and the second clamping plate are fixedly connected.

As a preferable technical scheme, the output shaft of the motor is fixedly connected with the upper connecting rod.

As preferred technical scheme, leaf spring anchor clamps include the leaf spring support, the bottom surface of leaf spring support is equipped with a plurality of butt joint holes, the equal welded fastening of both sides face of leaf spring support has a plurality of locating pins, the top surface of leaf spring support is equipped with a plurality of dead slots, every the top of keeping away the dead slot all is equipped with the leaf spring, every the leaf spring all through a plurality of word fix with screws on the leaf spring support, and the equal welded fastening in end of every leaf spring has the holder, every the surface of holder all is equipped with the double-layered groove.

Preferably, the surface of the placing strip is provided with a placing groove.

As the preferred technical scheme, the section of the placing groove is V-shaped, and the surface of the groove wall of the placing groove is provided with a rubber pad for protecting the PCB.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a two upper and lower centre gripping fixing device's setting, can realize the leaf spring anchor clamps and put the fixed of lath to realize the PCB board at the leaf spring anchor clamps and put the fixed between the lath, guarantee to fly needle test machine PCB board can steady firm under normal operating condition, and through the setting of leaf spring, can float in a flexible way from top to bottom at the in-process of centre gripping, consequently can realize fixing no flange limit PCB board even to the narrow plate limit, and then promote full-automatic needle test machine complete machine performance that flies.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of the plate spring clamp of the present invention;

fig. 3 is a schematic view of the structure of the lath placing strip of the present invention.

In the figure: the clamping and fixing device comprises a clamping and fixing device 1, a first clamping plate 10, a second clamping plate 11, a fixing connecting rod 12, a lower connecting rod 13, an upper connecting rod 14, a connecting plate 15, a lower rotating wheel 16, an upper rotating wheel 17, a belt 18, a motor 19, a plate spring clamp 2, a plate spring support 20, a butt joint hole 21, a positioning pin 22, a clearance groove 23, a plate spring 24, a straight screw 25, a clamping seat 26, a clamping groove 27, a plate placing strip 3, a placing groove 30 and a PCB 4.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Referring to fig. 1-3, the present invention provides a technical solution:

a fixture for fixing a PCB by using a plate spring clamp comprises an upper clamping and fixing device 1 and a lower clamping and fixing device 1, wherein the upper clamping and fixing device 1 and the lower clamping and fixing device 1 are completely the same in structure and respectively comprise a front first clamping plate 10 and a rear first clamping plate 10 which are symmetrical to each other and a front second clamping plate 11 which are symmetrical to each other, the two second clamping plates 11 are positioned between the two first clamping plates 10, each first clamping plate 10 is fixedly connected with an upper fixing connecting rod 12 and a lower fixing connecting rod 12 which are parallel to each other, one side of each fixing connecting rod 12 is respectively provided with a lower connecting rod 13 and an upper connecting rod 14, a connecting plate 15 is respectively arranged between the lower connecting rod 13 and the fixing connecting rod 12 and between the upper connecting rod 14 and the fixing connecting rod 12, the tail ends of the lower connecting rod 13 and the upper connecting rod 14 are respectively fixedly connected with a lower rotating wheel 16 and an upper rotating wheel 17, the lower rotating wheel 16 and the upper rotating wheel 17 are in transmission connection through a belt 18, the plate placing strip 3 is clamped and fixed between two second clamping plates 11 on the lower clamping and fixing device 1, and the PCB 4 is fixed between the plate spring clamp 2 and the plate placing strip 3.

It should be noted that the upper first clamping plate 10 is two in front and back, the lower first clamping plate 10 is two in front and back, so the upper and lower upper connecting rods 14 are four in total, the end of each upper connecting rod 14 is connected with a motor 19, and the motors 19 at the ends of the upper two upper connecting rods 14 share one switch, so the upper and lower connecting rods rotate synchronously, and the rotation directions of the rotors in the upper and lower connecting rods 14 are opposite, and the motors 19 at the ends of the lower two upper connecting rods 14 share one switch, so the upper and lower first clamping plates 10 rotate synchronously and reversely, so that the clamping and fixing of the plate spring clamp 2 and the plate placing strip 3 can be realized.

In this embodiment, the two second clamping plates 11 are hinged to each other.

In this embodiment, the first splint 10 and the second splint 11 are fixedly connected.

In this embodiment, the output shaft of the motor 19 is fixedly connected to the upper link 14.

In this embodiment, leaf spring anchor clamps 2 includes leaf spring support 20, the bottom surface of leaf spring support 20 is equipped with a plurality of butt joint holes 21, the equal welded fastening of both sides face of leaf spring support 20 has a plurality of locating pins 22, the top surface of leaf spring support 20 is equipped with a plurality of dead slots 23 of keeping away, every top of keeping away dead slot 23 all is equipped with leaf spring 24, every leaf spring 24 all fixes on leaf spring support 20 through a plurality of word screws 25, and the equal welded fastening in end of every leaf spring 24 has holder 26, every holder 26's surface all is equipped with double-layered groove 27.

It should be noted that the plate springs 24 are arranged at equal intervals, and all the plate springs 24 are located on the same horizontal plane, so that the magnitude of the elastic force exerted by each plate spring 24 on the PCB 4 can be ensured to be uniform, and the PCB can be stably and firmly ensured to be under the normal working state of the flying probe testing machine.

It should be noted that the cross section of the clamping groove 27 is V-shaped, and both side edges of the notch of the clamping groove 27 are arc-shaped, and the V-shaped notch and the groove are arc-shaped, so that the clamping groove 27 is always tangent to the PCB 4 during the whole working process, thereby ensuring the firmness and reliability of the PCB 4.

In this embodiment, the surface of the batten 3 is provided with a placing groove 30.

In this embodiment, the cross-section of the placing groove 30 is V-shaped, and a rubber pad for protecting the PCB 4 is disposed on the surface of the groove wall of the placing groove 30.

It should be added that the first clamping plate 10 and the second clamping plate 11 are fixed by screws, the fixed connecting rod 12 and the first clamping plate 10 are welded and fixed, the two ends of the connecting plate 15 are welded and fixed with the fixed connecting rod 12 and the lower connecting rod 13, the two ends of the connecting plate 15 are welded and fixed with the fixed connecting rod 12 and the upper connecting rod 14, the lower rotating wheel 16 and the lower connecting rod 13 are welded and fixed, the upper rotating wheel 17 and the upper connecting rod 14 are welded and fixed, and the output shaft of the motor 19 and the upper connecting rod 14 are welded and fixed.

When the tool for fixing the PCB by using the plate spring clamp is used, the motors 19 at the tail ends of the upper connecting rod 14 and the lower connecting rod 14 are simultaneously connected with an external power supply to enable the tool to work, the motors 19 can drive the upper connecting rod 14 to rotate, the rotation of the upper connecting rod 14 can drive the lower connecting rod 13 to synchronously rotate through the belt 18, the lower connecting rod 13 and the upper connecting rod 14 are both connected with the fixed connecting rod 12 through the connecting plate 15, so the rotation of the lower connecting rod 13 and the upper connecting rod 14 can simultaneously drive the two first clamping plates 10 to rotate, and the tail ends of the upper connecting rods 14 at both sides are both connected with the motors 19, and the two motors 19 keep synchronously rotating in opposite directions, so the first clamping plates 10 at both sides can be driven to synchronously swing in opposite directions, the swing of the two first clamping plates 10 can drive the two second clamping plates 11 to synchronously swing in opposite directions, so the two second clamping plates 11 are close to each other, and before, the, the board placing strip 3 is placed between the two second clamping plates 11 at the lower part, therefore, the two second clamping plates 11 at the upper part can clamp and fix the plate spring clamp 2, the two second clamping plates 11 at the lower part can clamp and fix the board placing strip 3, then the PCB 4 is placed between the board placing strip 3 and the plate spring clamp 2, the bottom end of the PCB 4 is positioned in the placing groove 30, the top end is positioned in the clamping groove 27, and the clamping groove 27 and the placing groove 30 are both V-shaped, so that the PCB 4 can be stably placed, and due to the existence of the plurality of plate springs 24 arranged side by side, the PCB 4 has downward elastic force action, the stability and the firmness of the clamping of the PCB 4 between the board placing strip 3 and the plate spring clamp 2 are further ensured, moreover, due to the self elastic action of the plate springs 24, the PCB can flexibly float up and down in the clamping process, so that the narrow board edge or even the PCB without board edge can be fixed, thereby improving the overall performance of the full-automatic flying probe testing machine.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an utilize frock of leaf spring anchor clamps fixed PCB board, includes two upper and lower centre gripping fixing device (1), its characterized in that: the structure of the upper clamping fixing device and the lower clamping fixing device (1) is completely the same, the two clamping fixing devices comprise a front first clamping plate (10) and a rear first clamping plate (10) which are symmetrical to each other, the two second clamping plates (11) are positioned between the two first clamping plates (10), each first clamping plate (10) is fixedly connected with an upper fixing connecting rod (12) and a lower fixing connecting rod (12) which are parallel to each other, one side of each fixing connecting rod (12) is provided with a lower connecting rod (13) and an upper connecting rod (14) respectively, the lower connecting rod (13) and the fixing connecting rods (12) and the upper connecting rods (14) and the fixing connecting rods (12) are connected through connecting plates (15), the tail ends of the lower connecting rod (13) and the upper connecting rod (14) are fixedly connected with a lower rotating wheel (16) and an upper rotating wheel (17) respectively, and the lower rotating wheel (16) and the upper rotating wheel (17) are connected through, the tail end of the upper connecting rod (14) is further provided with a motor (19), the plate spring clamp (2) is clamped and fixed between two second clamping plates (11) on the clamping and fixing device (1) located above, the plate placing bar (3) is clamped and fixed between two second clamping plates (11) on the clamping and fixing device (1) located below, and the PCB (4) is fixed between the plate spring clamp (2) and the plate placing bar (3).

2. The tool for fixing the PCB using the plate spring clamp according to claim 1, wherein: the two second clamping plates (11) are hinged with each other.

3. The tool for fixing the PCB using the plate spring clamp according to claim 1, wherein: the first clamping plate (10) and the second clamping plate (11) are fixedly connected.

4. The tool for fixing the PCB using the plate spring clamp according to claim 1, wherein: the output shaft of the motor (19) is fixedly connected with the upper connecting rod (14).

5. The tool for fixing the PCB using the plate spring clamp according to claim 1, wherein: leaf spring anchor clamps (2) include leaf spring support (20), the bottom surface of leaf spring support (20) is equipped with a plurality of butt joint hole (21), the equal welded fastening of both sides face of leaf spring support (20) has a plurality of locating pins (22), the top surface of leaf spring support (20) is equipped with a plurality of clearance grooves (23), every the top of avoiding clearance groove (23) all is equipped with leaf spring (24), every leaf spring (24) are all fixed on leaf spring support (20) through a plurality of word screws (25), and the equal welded fastening in end of every leaf spring (24) has grip slipper (26), every the surface of grip slipper (26) all is equipped with double-layered groove (27).

6. The tool for fixing the PCB using the plate spring clamp according to claim 1, wherein: the surface of the placing strip (3) is provided with a placing groove (30).

7. The tool for fixing the PCB using the plate spring clamp according to claim 6, wherein: the cross section of the placing groove (30) is V-shaped, and a rubber pad used for protecting the PCB (4) is arranged on the surface of the groove wall of the placing groove (30).