CN212646431U

CN212646431U - Element pulling and separating machine and pulling and separating set

Info

Publication number: CN212646431U
Application number: CN202021264803.5U
Authority: CN
Inventors: 许佳佳; 樊申腾; 彭荣; 邓伟; 张涛; 李蒙
Original assignee: Meixin Testing Technology Co ltd
Current assignee: Meixin Testing Technology Co ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2021-03-02
Anticipated expiration: 2030-06-30

Abstract

The utility model relates to a testing arrangement field provides the component and draws off the machine and draw off the suit. An element drawing and separating machine comprising: the limiting mechanism and the lifting mechanism are arranged on the base; the limiting mechanism is provided with an operating gap, the operating gap is used for exposing the pulled-out element on the sample substrate, and the limiting mechanism is used for limiting the sample substrate body; the lifting mechanism comprises a transmission mechanism and a connecting piece which are connected with each other, the transmission mechanism is used for driving the connecting piece to move up and down, and the bottom of the connecting piece is used for being connected with a connected piece connected to the pulled-out element. The element pulling-off sleeve comprises the element pulling-off machine. The utility model provides an element is drawn and is taken off the machine and draw and take off the suit, can be used to draw electronic components from the base plate is instantaneous to take off, avoids electronic components and base plate to damage, when surveying welding quality, obtains comparatively accurate test result.

Description

Element pulling and separating machine and pulling and separating set

Technical Field

The utility model relates to a testing arrangement field particularly, relates to the component and draws off the machine and draw and take off the suit.

Background

When inspecting the soldering quality of a BGA component on a PCBA board, a red ink test is usually performed to check whether the BGA has soldering defects such as empty soldering, insufficient soldering, cracks and the like after soldering so as to ensure the normal use function of the BGA. However, in the red ink test, the biggest difficulty is to separate the BGA from the solder substrate and then to check whether the staining phenomenon is present or not under a microscope.

There are now two methods of separation commonly available in the laboratory, the first being to pry the BGA from the substrate using a flat-headed screwdriver for separation. Secondly, the BGA is clamped by a clamp or pulled off the substrate by a pulling machine to achieve the purpose of separation. The two methods have obvious test defects and test failure rate, and the first prying method cannot easily control prying force and often damage the solder balls at the edge of the BGA due to different sizes and different packaged BGA in the test process, so that whether the solder balls have defects or not cannot be determined. In the second mechanical pulling method, since the size of the BGA is different from the size of the substrate, the requirement on the fixture is high, different fixtures are designed for different samples (according to the size of the BGA and the size of the substrate), and the design cost is high. In addition, because the thickness of the substrate is thinner, the substrate is not uniformly stressed and is broken to cause test failure when the test is frequently carried out. However, the tensile machine is not fast enough, and the test requires instantaneous brittle fracture separation to achieve the test.

In conclusion, the accuracy of the two methods has larger errors and high failure rate, which brings great operation difficulty to the experimenter.

In view of this, the present application is specifically made.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an element is drawn and is taken off machine and draw and take off suit in order to improve at least one kind of problem mentioned in the background art.

The embodiment of the utility model discloses a can realize like this:

in a first aspect, an embodiment of the present invention provides an element pulling and separating machine, which includes: the limiting mechanism and the lifting mechanism are arranged on the base;

the limiting mechanism is provided with an operating gap, the operating gap is used for exposing the pulled-out element on the sample substrate, and the limiting mechanism is used for limiting the sample substrate body;

the lifting mechanism comprises a transmission mechanism and a connecting piece which are connected with each other, the transmission mechanism is used for driving the connecting piece to move up and down, and the bottom of the connecting piece is used for being connected with a connected piece connected to the pulled-out element.

In optional embodiment, stop gear includes two parallel arrangement's the first cardboard that is rectangular shape, and the operating gap is located between two first cardboards, and the relative both ends of every first cardboard all are connected with the base through the bolt.

In an optional embodiment, the base is provided with at least one row of first screw hole groups and at least one row of second screw hole groups, the first screw hole groups and the second screw hole groups are respectively located at positions corresponding to two opposite ends of the first clamping plate, and the distribution direction of the screw holes in each row of the first screw hole groups and the distribution direction of the screw holes in each row of the second screw hole groups are perpendicular to the length direction of the first clamping plate.

In an optional embodiment, a sliding groove is arranged at the end part of each first clamping plate, the number of the rows of the first screw hole groups or the second screw hole groups is at least 2, and a bolt passes through the sliding groove to be connected with a screw hole in the first screw hole group or the second screw hole group;

in an alternative embodiment, the first catch plate is provided with a chute at each of its opposite ends.

In an optional implementation mode, the limiting mechanism further comprises two second clamping plates which are long-strip-shaped, when the limiting mechanism works, the two second clamping plates are located between each first clamping plate and the base, and the two second clamping plates and the two first clamping plates surround to form an operation gap.

In an optional embodiment, the transmission mechanism comprises a support column, a rack, a connecting sleeve, a gear and a gear rotating shaft, wherein the support column is arranged on the base, the rack is arranged along the length direction of the support column, the connecting sleeve is sleeved outside the gear and the support column and enables the gear to be meshed with the rack, the gear rotating shaft is connected with the gear and penetrates through the center of the gear and simultaneously penetrates through the connecting sleeve, and the connecting piece is connected with the connecting sleeve.

In an alternative embodiment, the lifting mechanism further comprises a force application wrench, the force application wrench being connected to an end of the gear shaft.

In an alternative embodiment, the connecting element comprises a vertical plate connected to the connecting sleeve and a clamping portion connected to the vertical plate, wherein the clamping portion has a clamping groove into which a vertical bolt connected to the pull-off element can be clamped.

In a second aspect, the embodiment of the present invention provides an element pull-off kit, including the element pull-off machine that the bonding was drawn mechanism and any of the above-mentioned embodiments to provide, the bonding was drawn the mechanism and is included can with drawn the firm bonding piece of component upper surface bonding to and be connected with bonding mechanism be used for can dismantle the connected by connecting piece with the connecting piece.

The utility model discloses beneficial effect includes, for example:

because the base, stop gear and hoist mechanism's specific setting for this component draws takes off the machine and can be used for drawing off electronic components from the base plate is instantaneous, and can avoid electronic components and base plate to damage, when surveying welding quality, can avoid the test to have great error and higher failure rate, thereby can obtain comparatively accurate test result.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a front view of an element pulling and separating machine according to an embodiment of the present invention;

fig. 2 is a left side view of an element pulling and separating machine according to an embodiment of the present invention;

FIG. 3 is a front view of a test specimen mounted on a component take-off machine according to an embodiment of the present invention;

fig. 4 is a left side view of a test specimen mounted on a component detachment machine according to an embodiment of the present invention;

FIG. 5 is a top view of a test specimen mounted on a component part puller apparatus according to an embodiment of the present invention;

FIG. 6 is a partial assembly structure view of the gear and the rack of FIG. 2 after the connecting sleeve is disassembled;

fig. 7 is a schematic diagram showing the structure of the BGA component after the bonding is performed by the pulling mechanism.

Icon: 100-element drawing and separating machine; 110-a base; 111-screw holes; 130-a limiting mechanism; 131-an operating gap; 132-a first card; 133-a chute; 134-bolt; 135-a second card; 150-a lifting mechanism; 151-a transmission mechanism; 152-support column; 153-rack; 154-connecting sleeve; 155-gear; 156-gear shaft; 157-force application wrench; 161-a connector; 162-a riser; 163-a card portion; 164-a card slot; 200-PCBA substrate; 210-BGA components; 220-a substrate body; 300-bonding a pulled mechanism; 310-vertical bolts; 320-adhesive member.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that, if the terms "upper", "lower", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the products of the present invention are used, the description is only for convenience of description and simplification, but the indication or suggestion that the indicated device or element must have a specific position, be constructed and operated in a specific orientation, and thus, should not be interpreted as a limitation of the present invention.

Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.

Referring to fig. 1 and 2, the present embodiment provides a component pulling and separating machine 100, which includes: a base 110, and a limiting mechanism 130 and a lifting mechanism 150 arranged on the base.

The position limiting mechanism 130 has an operation gap 131, the operation gap 131 is used for exposing the pulled-off element on the sample substrate, and the position limiting mechanism 130 is used for limiting the sample substrate body.

The lifting mechanism 150 comprises a transmission mechanism 151 and a connecting piece 161 which are connected with each other, the transmission mechanism 151 is used for driving the connecting piece 161 to move up and down, and the bottom of the connecting piece 161 is used for being connected with a connected piece connected to a pulled-off element.

The component pulling and separating machine 100 provided by the embodiment can be used for pulling and separating the electronic component relative to the substrate so as to examine the welding quality of the electronic component. As shown in fig. 3 to 6, the BGA component 210 on the PCBA substrate 200 is pulled off by using, for example, the component pulling-off machine 100 provided in the present embodiment. The sample substrate referred to above is referred to as the PCBA substrate 200, and the BGA component 210 is referred to as the pulled-out component referred to above. In use, the connected component is adhered to the BGA component 210 with an adhesive substance. The connected piece is connected and fastened with the connecting piece 161. Referring to fig. 3 and 4, the substrate body 220 of the PCBA substrate 200 is limited or clamped by the limiting mechanism 130, so that the BGA component 210 is exposed in the operating gap 131, and the user controls the connecting member 161 to move upward at a relatively high speed by controlling the transmission mechanism 151, and the connecting member 161 moves upward to generate an upward pulling force on the connected member, so that the BGA component 210 and the substrate body 220 can be separated in a brittle manner, and the occurrence of the solder ball damage at the edge of the BGA component 210 or the substrate body 220 fracture caused by the conventional separation of the BGA component 210 and the substrate body 220 can be effectively avoided.

Therefore, the embodiment of the utility model provides an element is drawn and is taken off machine 100 can be used to draw electronic components from the base plate instantaneously and take off, and can avoid electronic components and base plate to damage, when surveying welding quality, can avoid the test to have great error and higher failure rate to enough obtain comparatively accurate test result.

Preferably, the limiting mechanism 130 includes two first clamping plates 132 disposed in parallel and in an elongated shape, the operating gap 131 is located between the two first clamping plates 132, and two opposite ends of each first clamping plate 132 are connected to the base through bolts 134. It should be noted that the term "parallel" or "perpendicular" in the present invention refers to approximately parallel or perpendicular when viewed with the naked eye, and does not refer to absolute parallel or perpendicular.

When the BGA substrate clamping device is used, the substrate body 220 is clamped under the two first clamping plates 132, so that the BGA component is exposed in the operation gap 131 between the two first clamping plates 132, and the two first clamping plates 132 clamp the substrate body 220 through the adjusting bolts 134.

Further, the base 110 is provided with at least one row of first screw hole groups and at least one row of second screw hole groups, the first screw hole groups and the second screw hole groups are respectively located at positions corresponding to two opposite ends of the first clamping plate 132, and the distribution direction of the screw holes 111 in each row of the first screw hole groups and the distribution direction of the screw holes 111 in each row of the second screw hole groups are perpendicular to the length direction of the first clamping plate 132.

The bolts 134 are installed in different bolt holes 111 in the direction perpendicular to the first clamping plates 132 according to the size of the pulled-out component, so as to adjust the distance between the two first clamping plates 132. Due to the above arrangement of the plurality of screw holes 111, the component pulling and separating machine 100 can accommodate components of various sizes when in use.

Further, the end of each first clamping plate 132 is provided with a sliding groove 133, and the number of rows of the first screw hole group or the second screw hole group is at least 2 rows. The bolt 134 passes through the sliding groove 133 to be connected with the screw hole 111 in the first screw hole group or the second screw hole group.

When the structure is used, the bolt 134 can slide in the sliding groove 133 to select a proper installation position according to the size of the component, and the bolt 134 is connected with the screw holes 111 in the screw hole groups in different rows, so that the substrate body 220 can bear proper pressure.

Preferably, in order to make the connection position of the opposite ends of the first clamping plate 132 and the base 110 adjustable, the opposite ends of the first clamping plate 132 are provided with sliding grooves 133.

Further, the limiting mechanism further comprises two second catch plates 135. The position of the second catch plate 135 may be placed at will when the device is not in use. In use, two second cards 135 are positioned between each first card 132 and the base 110, the two second cards 135 and the two first cards 132 enclosing an operating gap 131.

During the use, make two first cardboard 132 and second cardboard 135 just enclose into the quadrangle and push down base plate body 220, can make BGA components and parts 210 and base plate body 220 can both receive the force more evenly when being pulled off by BGA components and parts 210.

In this embodiment, because the pulled-off BGA component 210 is square, when the second clamping plate 135 is used to clamp the substrate body 220, the second clamping plate 135 is perpendicular to the first clamping plate 132, and the distances between the four clamping plates and the pulled-off BGA component 210 are equal to ensure that the stress on each side of the pulling-off process is uniform to avoid the occurrence of damage to the component or the substrate. It should be noted that, in other embodiments of the present invention, the second engaging plate 135 and the first engaging plate 132 are generally configured according to the shape of the pulled-off component, i.e. the operating gap surrounded by the second engaging plate 135 and the first engaging plate 132 should match the shape of the pulled-off component to ensure that the pulling-off process is uniformly stressed.

Further, as shown in fig. 1 to 4 and 7, the lifting mechanism 150 further includes a supporting column 152, a rack 153, a connecting sleeve 154, a gear 155, and a gear rotating shaft 156, the supporting column 152 is disposed on the base 110, the rack 153 is disposed along a length direction of the supporting column 152, the connecting sleeve 154 is disposed outside the gear 155 and the supporting column 152 and engages the gear 155 with the rack 153, the gear rotating shaft 156 is connected with the gear 155 and passes through a center of the gear 155 and simultaneously passes through the connecting sleeve 154, and the connecting member 161 is connected with the connecting sleeve 154.

The above-mentioned arrangement enables the experimenter to roll the gear 155 along the rack 153 and drive the whole connecting sleeve 154 to move up and down along the supporting column 152 when rotating the gear rotating shaft 156.

Further, the lifting mechanism 150 further includes a force application wrench 157, and the force application wrench 157 is connected to an end of the gear rotating shaft 156.

When in use, an experimenter can rotate the gear rotating shaft 156 by holding the rotating force application wrench 157, so that the connecting sleeve 154 drives the connecting piece 161 to move upwards. The experimenter can realize the speed of separating the BGA component 210 from the substrate body 220 according to the speed of rotating the force application wrench 157.

Further, the connector 161 includes a vertical plate 162 connected to the connecting sleeve 154 and a clamping portion 163 connected to the vertical plate 162, and the clamping portion 163 has a clamping slot 164 for the vertical bolt 310 to be connected to the pulled-off component (BGA component 210).

In use, the vertical bolt 310 is used as a connector to be adhered to the surface of the BGA component 210. The vertical bolt 310 is engaged in the engaging groove 164, the vertical bolt 310 is tightened, and the force application wrench 157 is rotated to pull the BGA component 210 off.

As shown in fig. 3 and 4, an embodiment of the present invention further provides a component pulling-off kit, which includes a bonded pulled mechanism 300 and the component pulling-off machine 100 provided in this embodiment, wherein the bonded pulled mechanism 300 includes a bonding member 320 capable of bonding with a pulled component firmly, and a connected member (a vertical bolt 310) connected to the bonding member 320 for detachable connection with the connecting member 161.

When the device is used, the bonded pulled mechanism 300 is arranged on a pulled component (BGA component 210), the connected piece is connected with the connecting piece 161, the component pulling and separating machine 100 is started, the pulled component can be pulled off from the substrate, and the phenomenon of damage to the component and the substrate body caused by the pulling and separating process can be effectively improved.

As shown in fig. 3, fig. 4 and fig. 7, the embodiment of the present invention further provides an element pull-off method, which uses the element pull-off kit provided by the embodiment of the present invention, including:

first, the adhesive member 320 is adhered to the surface of the pulled-off component (BGA component 210) away from the substrate body 220, and the connected member (vertical bolt 310) is positioned at the center of the pulled-off component.

Then, the connected member is connected to the connecting member 161.

Finally, the actuator 151 is actuated to move the connecting member 161 vertically upward to pull the pulled-off member off the substrate body 220.

To sum up, the utility model provides an element is drawn and is taken off machine because base, stop gear and hoist mechanism's concrete setting for this element is drawn and is taken off machine and can be used to draw electronic components from the base plate instantaneously and take off, and can avoid electronic components and base plate to damage, when surveying welding quality, can avoid the test to have great error and higher failure ratio, thereby can obtain comparatively accurate test result.

The utility model provides an element draws takes off suit, because include the utility model provides an element draws the off-line, consequently this suit can be used to draw electronic components from the base plate is instantaneous to take off, and can avoid electronic components and base plate to damage, when surveying welding quality, can avoid the test to have great error and higher failure ratio to can obtain comparatively accurate test result.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A component pulling and separating machine comprising: the lifting mechanism is arranged on the base;

the limiting mechanism is provided with an operation gap used for exposing a pulled-out element on the sample substrate, and is used for limiting the sample substrate body;

2. A component pulling and separating machine as claimed in claim 1, wherein the limiting mechanism comprises two first clamping plates which are arranged in parallel and have an elongated shape, the operating gap is located between the two first clamping plates, and opposite ends of each first clamping plate are connected with the base through bolts.

3. The component pulling and separating machine according to claim 2, wherein the base is provided with at least one row of first screw hole groups and at least one row of second screw hole groups, each of the first screw hole groups and the second screw hole groups being located at positions corresponding to opposite ends of the first engaging plate, and a direction of distribution of the screw holes in each row of the first screw hole groups and a direction of distribution of the screw holes in each row of the second screw hole groups are perpendicular to a longitudinal direction of the first engaging plate.

4. The component pulling and separating machine according to claim 3, wherein each of the first engaging plates is provided at an end thereof with a slide groove, the number of rows of the first screw hole group or the second screw hole group is at least 2, and the bolt is connected to the screw hole in the first screw hole group or the second screw hole group through the slide groove.

5. A component pulling and separating machine according to claim 4, wherein the first clamping plate is provided with sliding grooves at opposite ends thereof.

6. A component pulling and separating machine as claimed in claim 2, wherein the spacing mechanism further comprises two second elongate straps, the two second straps being operatively positioned between each of the first straps and the base, the two second straps and the two first straps defining the operative gap.

7. The component pulling and separating machine according to claim 1, wherein the transmission mechanism comprises a support column, a rack, a connecting sleeve, a gear and a gear rotating shaft, the support column is arranged on the base, the rack is arranged along the length direction of the support column, the connecting sleeve is arranged outside the gear and the support column and enables the gear to be meshed with the rack, the gear rotating shaft is connected with the gear and penetrates through the center of the gear and simultaneously penetrates through the connecting sleeve, and the connecting piece is connected with the connecting sleeve.

8. The component pulling and separating machine of claim 7, wherein the lifting mechanism further comprises a force application wrench coupled to an end of the gear shaft.

9. The element pulling and releasing machine according to claim 7, wherein the connecting member comprises a vertical plate connected to the connecting sleeve and a clamping portion connected to the vertical plate, and the clamping portion has a clamping groove into which a vertical bolt connected to the pulled and released element can be clamped.

10. A component pull-off kit, comprising an adhesive pull-off mechanism and the component pull-off machine according to any one of claims 1 to 9, wherein the adhesive pull-off mechanism comprises an adhesive member capable of adhering firmly to the upper surface of a pulled component, and a connected member connected to the adhesive member for detachable connection to the connecting member.