CN200979561Y - Circuit Board Fixing Mechanism - Google Patents

Abstract

The utility model discloses a circuit board fixing mechanism, which is applied to a test device capable of testing a circuit board. A carrier which is arranged on a base of the test device and can move freely along the base is used to carry the circuit board, and a carrier which can be arranged on the test device and can move freely parallel to the base is provided, so that a pressing member and the carrier are located in different planes, so that the pressing member can press the circuit board downwardly from directly above the carrier in parallel to the carrier through an action part, thereby fixing the circuit board between the pressing member and the carrier by a plane force design.

Description

Circuit Board Fixing Mechanism

technical field

The utility model relates to a fixing technology, in more detail, it is a circuit board fixing mechanism applied in a circuit board testing device.

Background technique

At present, in the production process of Printing Circuit Board (PCB), it is inevitable to cause electrical defects such as short circuit, open circuit and leakage due to external factors. The trend of hierarchical evolution, if the bad boards are not screened out in time and allowed to flow into the manufacturing process, it will inevitably cause more cost waste. Therefore, the technology of improving testing is a solution for the industry to reduce scrap rate and improve product yield.

In the previous testing process, the circuit board was placed on the carrier board (download board) of the test device. The carrier board was provided with support columns and positioning columns for positioning the circuit board, and the carrier board could pass through the slider along the slide. slot and move to the predetermined test position. However, since this positioning method only exerts force on several points on the circuit board, it causes the problem of deformation due to uneven force on the circuit board when picking and placing the circuit board. At the same time, when testing some input/output (I/O) connection ports, it is necessary to perform the operation of plugging and unplugging such components on the edge of the circuit board; Warpage occurs on the opposite side of the circuit board that is not stressed, which affects the test work. In addition, the chutes of this prior art are mostly milled by electric wood, so the requirements for the accuracy and stability of the slider need to be increased.

In addition, in order to solve the above-mentioned deformation problem of the circuit board, another fixing technology is adopted, that is, adding a pressure plate as the upper board. The upper carrier plate (that is, the pressing plate) is located on the same plane as the lower plate of the aforementioned prior art, so that the upper carrier plate is pressed and fixed on the lower plate, so that the supporting force of the circuit board is provided by the lower plate, and the circuit board is supported by the lower plate. The upper carrier plate provides downforce to the board to avoid deformation problems caused by point applied force.

However, since the upper carrier board (ie, the pressure plate) and the lower board are located on the same plane, it is easy to cause the circuit board to contact or collide with the upper carrier board when the circuit board is placed or taken out, thus causing damage to the electronic components on the circuit board, causing Unnecessary trouble and loss. Moreover, in order to avoid the aforementioned situation, the operator must be very careful, which makes the operation extremely inconvenient, so that the work efficiency is low.

To sum up, how to find a fixation technology that solves the above-mentioned problems, can achieve good fixation of the circuit board, and at the same time can facilitate the placement and removal of the circuit board is an urgent problem to be solved at present.

Utility model content

In view of the above-mentioned shortcomings of the prior art, the main purpose of this utility model is to provide a circuit board fixing mechanism, so that the circuit board can be firmly fixed, and the circuit board testing operation can be prevented from being affected by external force.

Another object of the present invention is to provide a circuit board fixing mechanism that can conveniently place and take out the circuit board, so as to improve work efficiency.

Another object of the present invention is to provide a circuit board fixing mechanism that can avoid deformation of the circuit board.

Another object of the present invention is to provide a circuit board fixing mechanism that can avoid warping of the circuit board.

In order to achieve the above and other related purposes, the utility model provides a circuit board fixing mechanism, which is applied in a test device with a base and used for testing circuit boards. The circuit board fixing mechanism includes: a bearing member, which can be The base is movably arranged on the base to carry the circuit board, and has a first positioning portion for positioning the circuit board; the pressing part, which can be freely arranged on the testing device parallel to the base, has a A second positioning part for correspondingly combining the first positioning part for fixing the circuit board; and an action part, which is arranged on the testing device and connected to the pressing part, so that the pressing part can be operated to press the circuit board in parallel on the carrier, for fixing the circuit board between the pressed part and the carrier.

In the aforementioned circuit board fixing mechanism, the first positioning part can be one of the positioning column and the positioning protrusion, and the second positioning part can be one of the corresponding positioning hole and positioning groove; The first positioning part can be one of a positioning hole and a positioning groove, and the second positioning part can be one of a corresponding positioning post and a positioning protrusion.

In a preferred embodiment, the actuating part may optionally have a handle for actuating the pressed part to move up and down in a direction parallel to the supporting part/the base. Preferably, the carrier further includes an accommodating portion corresponding to the surface of the circuit board, and an operating portion for freely moving the carrier. Wherein, the accommodating part is a groove, and the operating part is a handle. At the same time, the bearing member may include a sliding portion disposed at the bottom for free movement along the base and parallel to the base. In addition, the pressed part may further include a limiting portion passing through the testing device, and at least one notch for correspondingly exposing a part of the circuit board. Wherein, the limiting portion is one of a slide bar and a perforation.

Compared with the prior art, the circuit board fixing mechanism of the present utility model mainly moves the carrier loaded with the circuit board to directly below the pressing part located on a different plane, and makes the pressing part parallel to the carrier to press The circuit board is placed on the carrier, and then the circuit board is fixed by combining the first positioning portion of the carrier and the second positioning portion of the pressed part. Therefore, the utility model can uniformly apply force/receive force on the plane, so that the circuit board can be firmly fixed, and the circuit board test operation can be prevented from being affected by the external force. , and can avoid deformation or warping of the circuit board. At the same time, since the pressing part can be staggered from the bearing part by the action part, the occurrence of the collision part in the prior art is avoided, thereby increasing the testing speed and greatly improving the working efficiency. Therefore, the utility model has overcome the defective of prior art.

Description of drawings

Fig. 1 is the schematic diagram of the three-dimensional appearance of the preferred embodiment of the circuit board fixing mechanism of the present invention applied to the test device;

2A to 2C are schematic side views of the operation of fixing the circuit board of the embodiment of the circuit board fixing mechanism of the present invention, wherein, FIG. 2A shows that the circuit board is placed on the carrier, and FIG. 2B shows the carrier that will carry the circuit board Moving to directly below the pressing part, FIG. 2C shows that the pressing part moves down to directly above the carrying part parallel to the carrying part, and the circuit board is fixed between the carrying part and the pressing part.

Symbol Description

1 circuit board fixing mechanism

10 bearing parts

100 First Positioning Department

101 Storage Department

103 Operation Department

11 pressed parts

110 Second Positioning Department

111 limit department

113 gaps

2 test device

20 base

201 slide rail

21 Wearing department

22 action department

220 handle

3 circuit boards

A, B, C arrows

Detailed ways

The implementation of the present utility model is described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification.

As shown in FIG. 1 , it is a perspective view illustrating a preferred embodiment of the circuit board fixing mechanism of the present invention applied to a testing device. As shown in the figure, the circuit board fixing mechanism 1 of the present invention is applied in a test device 2 for testing circuit boards. The test device 2 has a base 20 and a piercing portion 21 away from the base 20 . The circuit board fixing mechanism 1 mainly includes a carrier 10 , a pressing part 11 parallel to the carrier 10 , and an action part 22 for driving the pressing part 11 .

The carrier 10 can be freely moved along the base 20 on the base 20 to carry the circuit board, and has a first positioning portion 100 for positioning the circuit board and a capacity corresponding to the surface shape of the circuit board. The placing part 101, and the operating part 103 for freely moving the carrier 10.

In this embodiment, the carrier 10 can be a loading board. The first positioning portion 100 is preferably a positioning column, a positioning protrusion, or other equivalent structures. The accommodating part 101 is, for example, a groove that can be combined with a protruding part (for example, a connection port or other components to be tested on the circuit board) corresponding to the circuit board, so that it can be better engaged with the circuit board without There will be gaps. The operating part 103 can be, for example, a handle disposed on the carrier 10 , but it should be known that other equivalent structures that can freely move the carrier 10 along the base 20 are applicable to the present invention.

Meanwhile, the base 20 in this embodiment is provided with two sliding rails 201 , and the bottom of the carrier 10 may be provided with a sliding part (not shown) for freely moving along the sliding rails 201 parallel to the base 20 . The sliding portion can be a rail or other equivalent structure corresponding to the sliding rail 201 , and since such a structure should be understood and implemented by those skilled in the art, it will not be shown in another drawing.

It should be noted that although two sliding rails and corresponding sliding parts are provided in this embodiment, and they are all made of durable stainless steel materials, the number of the sliding rails 201 and sliding parts is not limited thereto, and of course The installation position and material of the slide rail 201 and the slide portion can also be selected according to actual needs, and are not limited to this embodiment; in addition, the slide portion can be, for example, a groove for fitting the slide rail 201 or other Equivalent structures, that is, as long as the carrier 10 can move smoothly on the slide rail 201 , it is not limited to the one shown in this embodiment.

The pressing part 11 can be freely arranged on the test device 2 parallel to the base 20, has a second positioning part 110 for correspondingly combining with the first positioning part 100 for fixing the circuit board, and passes through the first positioning part 100. The limiting portion 111 of the test device 2 and at least one notch 113 for exposing part of the circuit board (eg, the connection socket to be tested) are correspondingly provided. In this embodiment, the pressed part 11 can be an upper carrier plate, which is used to press the circuit board 3 on the carrier through the pressed part 11 when the carrier 10 moves to a fixed position corresponding to the pressed part 11. 10, and cooperate with the combination of the first positioning part 100 and the second positioning part 110 to fix the circuit board, so that the pressing part 11 can be operated to press the circuit board parallel to the carrier 10 for fixing the circuit A plate is between the pressing part 11 and the carrier part 10 .

Since the first positioning part 100 can be, for example, a positioning column, a positioning protrusion or other equivalent structures, the second positioning part 110 can be, for example, a corresponding positioning hole, a positioning groove or other corresponding equivalent structures; of course, If the first positioning portion 100 can be a positioning hole, a positioning groove or other equivalent structures, then the second positioning portion 110 can be a positioning post, a positioning protrusion or other corresponding equivalent structures. In this way, the carrier 10 can also be combined with the pressing part 11 to assist the pressing effect of the pressing part 11 , so as to fix the circuit board 3 between them.

However, generally speaking, since the circuit board is provided with fixing holes (not shown) at the four corners, if the first positioning part 100 is a positioning column or a positioning protrusion, it can be used when carrying the circuit board. Pass the first positioning part 100 through the fixing hole to limit the horizontal movement of the circuit board, so that the circuit board will not fall off during the process of moving with the carrier 10, and the second positioning part 110 can be compared The first positioning part 100 is well aligned and combined. In addition, the fixed position refers to the position directly below the pressed part 11, of course, a positioning mechanism (not shown) can be provided, so that the carrier 10 can be better positioned at the fixed position, because this type of positioning mechanism is currently There are and are not main features of the utility model, so they will not be described in detail here.

In this embodiment, the limiting portion 111 is a slide bar, and the piercing portion 21 is a corresponding perforation, and the size of the piercing portion 21 can just correspond to the limiting portion 111, thereby accommodating the limiting portion 111 The portion 111 passes through the piercing portion 21 to achieve the effect of defining the horizontal position of the pressed part 11 . Of course, in other embodiments, the setting positions of the limiting portion 111 and the piercing portion 21 can also be exchanged, for example, the piercing portion 21 is arranged on the pressed part 11, and the limiting portion 111 is fixed on the The testing device 2 is not limited to this embodiment as long as it can satisfy the condition of limiting the horizontal position of the pressed part 11 .

In addition, considering the subsequent testing steps, the plurality of notches 113 of the pressed part 11 correspond to the accommodating part 101 of the carrier 10, for users to plug and unplug such as input and output (I/O), universal serial bus (USB) Electronic components such as connection ports, but it should be known that the utility model is not limited thereto. For example, those skilled in the art can change the location, shape, and quantity of the accommodating portion 101 and the notch 113 .

Furthermore, the movable direction of the pressing part 11 is perpendicular to the carrier part 10. In order to achieve the effect of pressing the circuit board, the pressing part 11 can be optionally connected to the action part 22 on the testing device 2, as shown in FIG. 1, the The action part 22 is disposed on the testing device 2 and has a handle 220 for operation to vertically press down and lift the pressed part 11 . Since the pressing part 11 is provided with a limiting part 111 that can pass through the piercing part 21 on the testing device 2, the horizontal position of the pressing part 11 can be limited, so that the pressing part 11 can only move in the vertical direction (ie , move up and down parallel to the base 20).

In order to describe the principle and function of the present invention in detail, please refer to FIG. 2A to FIG. 2C , which are schematic diagrams of the operation of fixing the circuit board by the circuit board fixing mechanism according to the embodiment of the present invention.

First, as shown in FIG. 2A , place the circuit board 3 on the carrier 10 . At this time, for example, the first positioning portion 100 on the carrier 10 can be passed through the fixing hole (not shown) of the circuit board 3 , and at the same time, the groove 101 on the carrier 10 is accommodated on the circuit board 3 The protruding part makes the circuit board 3 fit well with the carrier 10; of course, if the first positioning part 100 is a groove, it can be kept corresponding to the fixing hole. It should be noted that the circuit board 3 can be any existing circuit board, and what is shown in this embodiment is for illustrative purposes only, rather than limiting the present invention. Then, push the carrier 10 in the direction indicated by arrow A, so that the carrier 10 loaded with the circuit board 3 moves along the base 20 to a fixed position corresponding to the pressing part 11 (that is, just below the pressing part 11 ). Here, the carrier 10 can be moved, for example, along the slide rail 201 and parallel to the base 20 with the sliding part at the bottom of the carrier 10; preferably, the carrier can also be carried by a positioning mechanism (not shown). The member 10 is positioned in this fixed position, but the positioning mechanism is not absolutely necessary.

Next, please refer to FIG. 2B, when the carrier 10 moves to the right below the pressing part 11, pull the handle 220 in the direction indicated by arrow B, so that the pressing part 11 moves vertically downward until As shown, the second positioning part 110 is combined with the first positioning part 100, and since the pressed part 11 also has a notch 113 corresponding to the protruding part on the circuit board 3 (as shown in FIG. 1 ), so The pressing part 11 can press the circuit board 3 on the carrier 10, and at the same time cooperate with the combination of the first positioning part 100 and the second positioning part 110 to fix the circuit board 3, and expose the circuit board 3 through the gap 113. A test connection port (not shown) is provided for users to insert and insert electronic components. Of course, the pressing part 11 can also be positioned at the fixed position by a positioning part (not shown), and the positioning part can be set, for example, at the limiting part, the action part 22, or other appropriate positions of the testing device 2 .

Furthermore, if the circuit board 3 is to be taken out after the test, it is only necessary to operate the handle 220 to loosen the pressing part 11, and then use the operating part 103 to remove the carrier part 10 from the base 20, so that the carrier part And pressing parts are staggered, can take out this circuit board 3 very conveniently. Of course, other ways can also be used to remove the carrier 10 from the base 20 , but not limited thereto. At the same time, the pressing part 11 can be moved directly above the carrier 10 through the action part 22, so that the pressing part 11 approaches or moves away from (staggers) the carrier 10, and the carrier 10 can use its own sliding part And remove this base 20, so no matter insert this circuit board 3 to this test device 2 or will take this circuit board 3 from this test device 2, all can guarantee that this circuit board 3 will not collide with this pressing part 11.

Compared with the prior art, the circuit board fixing mechanism of the present utility model is applied to a circuit board test device with a base, mainly by sliding the carrier loaded with the circuit board through the slide rail provided at the base of the test device. directly below the pressing part, and position it; then, by operating the action part connected with the pressing part, the pressing part presses the circuit board on the carrier in parallel; and at the same time cooperates with the first The combination of a positioning part and the second positioning part of the pressing part fixes the circuit board between the pressing part and the bearing part. In this way, the circuit board can be stably fixed by the pressing part and the bearing part located on different planes, so as to avoid affecting the circuit board testing operation due to external force.

Moreover, since the pressing part and the supporting part are provided with grooves corresponding to the protruding parts on the circuit board, the pressing part, the circuit board and the supporting part are all in close contact. Therefore, the subsequent plugging and unplugging of components will not have any impact on the circuit board, avoiding the disadvantages of the circuit board warping caused by unilateral force in the prior art; moreover, the carrier and the circuit board can be staggered when taking out the circuit board Pressed parts, so it can avoid the contact or collision between the circuit board and the upper board in the prior art. It can not only facilitate the placement and removal of the circuit board and speed up the test speed, thereby greatly improving the work efficiency, but also avoiding damage to the circuit board. out of shape.

The above-mentioned embodiments only illustrate the principles and effects of the present utility model, but are not intended to limit the present utility model. Any person skilled in the art can modify and change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Therefore, the protection scope of the utility model shall be based on the claims of this application.

Claims (9)

1. circuit board fixing mechanism, it is applied to one has in base and the proving installation in order to testing circuit board, it is characterized in that this circuit board fixing mechanism comprises:

Bearing part, it can move along this base and be located at this base freely, in order to carrying this circuit board, and has first location division for this circuit board of location;

Rolled-up stock, it can be parallel to this base and move and to be located at this proving installation freely, have be used for corresponding in conjunction with this first location division for second location division of fixing this circuit board; And

Operating member, it is located at this proving installation, and connects this rolled-up stock, suppresses in this bearing part this circuit board is parallel thereby can operate this rolled-up stock, for fixing this circuit board between this rolled-up stock and this bearing part.

2. circuit board fixing mechanism according to claim 1 is characterized in that: this first location division is wherein one of reference column and a locating convex block, and this second location division is wherein one of corresponding pilot hole and a detent.

3. circuit board fixing mechanism according to claim 1 is characterized in that: this first location division is wherein one of pilot hole and a detent, and this second location division is wherein one of corresponding reference column and a locating convex block.

4. circuit board fixing mechanism according to claim 1 is characterized in that: this operating member has handle.

5. circuit board fixing mechanism according to claim 1 is characterized in that: this bearing part comprises again to holding part of should circuit board surface and being provided with and the operating portion that is used for moving freely this bearing part.

6. circuit board fixing mechanism according to claim 5 is characterized in that: this holding part is a groove, and this operating portion then is a handle.

7. circuit board fixing mechanism according to claim 1 is characterized in that: this bearing part comprises the sliding part of being located at the bottom again.

8. circuit board fixing mechanism according to claim 1 is characterized in that: this rolled-up stock comprises limiting section that is arranged in this proving installation and at least one breach that exposes outside local this circuit board for correspondence again.

9. described according to Claim 8 circuit board fixing mechanism is characterized in that: this limiting section is wherein one of slide bar and perforation.

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