CN218382893U - Floating testing device and testing sorting machine - Google Patents

Abstract

The utility model relates to a floating test device and a test sorting machine, wherein the floating test device is matched with an object stage on which electronic components are placed for use, at least one positioning hole is arranged on the object stage, and the floating test device comprises a frame, a floating mechanism and a test head, wherein the floating mechanism is arranged on the frame and can do up-and-down offset motion relative to the object stage on the frame; the test head is connected to the floating mechanism, the end part of the test head close to the objective table is provided with at least one positioning pin, the positioning pin can move towards the direction of inserting into or withdrawing from the positioning hole correspondingly, and when the positioning pin moves towards the direction of inserting into or withdrawing from the positioning hole, the floating mechanism can do deflection motion on the rack; the utility model provides a floating test device drives the test head through relocation mechanism and is deflection motion, and the cooperation position of adjustment locating pin and locating hole makes in the locating pin can the accurate insertion to the locating hole, and the test head can laminate completely on electronic components's (like IC chip) test surface.

Description

Floating testing device and testing sorting machine

Technical Field

The utility model relates to an electronic components tests technical field, especially relates to a testing arrangement and test sorter float.

Background

In manufacturing and modern industrial production, product performance, quality and the like of the product are detected before the product is put into use so as to ensure the qualification of the product. With the rapid increase of the market demand for electronic components, such as IC chips, the performance of the IC chips is tested before use. In the testing process of the IC chip, a testing head of the testing sorting machine is pressed on the chip, the testing head is attached to the surface of the chip, and the performance, the quality and the like of the chip are detected.

In order to ensure the accurate matching between the test head and the IC chip, a positioning hole is usually formed on the IC chip fixing frame, a positioning pin matched with the positioning hole is arranged on the test head, and the accuracy of the contact position between the test head and the IC chip is ensured by the matching between the positioning pin and the positioning hole. However, due to the existence of errors in machining and assembling precision, errors often exist in the matching position of the positioning hole and the positioning pin, so that the positioning pin is obliquely inserted into the positioning hole, the testing head and the chip testing surface cannot be completely attached to each other, and finally, the problems that the pressure applied to the chip testing surface by the testing head is uneven, the crimping is unstable, the testing yield of the testing device is low and the like are caused.

SUMMERY OF THE UTILITY MODEL

In view of this, it is necessary to provide a floating test apparatus and a test handler, which are capable of solving the problem that a test head of the test handler cannot be completely attached to a test surface of an electronic component due to errors in processing and assembly accuracy.

The utility model provides a floating test device, uses with the objective table cooperation that places electronic components, at least one locating hole has been seted up on the objective table, floating test device includes:

a frame;

the floating mechanism is arranged on the rack and can do vertical offset motion relative to the objective table on the rack;

the test head is connected to the floating mechanism, at least one positioning pin is arranged at the end part of the test head close to the objective table, the positioning pin can move towards the direction of inserting into or withdrawing from the positioning hole correspondingly, and when the positioning pin moves towards the direction of inserting into or withdrawing from the positioning hole, the floating mechanism can do deflection motion on the rack.

The floating testing device is matched with an objective table on which electronic components are placed for use, the testing head is connected to the floating mechanism, the positioning pin can move towards the direction of inserting into or withdrawing from the positioning hole correspondingly, the floating mechanism can move up and down in a manner of offsetting relative to the objective table on the frame, so that when the positioning pin moves towards the direction of inserting into or withdrawing from the positioning hole, the floating mechanism can move in a deflection manner on the frame to drive the testing head to move in a deflection manner on an XY plane, the matching position of the positioning pin and the positioning hole is adjusted, the positioning pin can be accurately inserted into the positioning hole, the testing head can be completely attached to the testing surface of the electronic components (such as an IC chip), the pressure applied to the testing surface of the electronic components by the testing head is uniform, the crimping stability is good, and the testing yield of the floating testing device is improved.

In one embodiment, the floating mechanism comprises a fixed plate and a floating plate detachably connected to the fixed plate, the fixed plate is fixed on the frame, and the floating plate can perform offset movement and deflection movement relative to the fixed plate.

In one embodiment, the floating mechanism further comprises at least one reset assembly disposed between the fixed plate and the floating plate for deflection and reset of the floating plate.

In one embodiment, the floating plate has at least one first blind hole, the fixing plate has a second blind hole coaxial with the first blind hole, the second blind hole is communicated with the first blind hole, the first blind hole is opened on the surface of the floating plate close to the fixing plate, a part of the reset assembly is embedded in the first blind hole, and the other part of the reset assembly is embedded in the second blind hole.

In one embodiment, the reset assembly includes a bowl seat, a steel ball, a retaining ring, a guide post and a first elastic member, the bowl seat is embedded in the first blind hole, the bowl seat has a tapered groove, the tapered groove opens on the surface of the bowl seat close to the fixing plate and shrinks towards the inside of the bowl seat, the steel ball is movably disposed in the bowl seat, the retaining ring is sleeved on the surface of the steel ball, the first elastic member is embedded in the second blind hole, one end of the guide post is connected to the elastic member, and the other end of the guide post abuts against the steel ball.

In one embodiment, the floating mechanism further comprises at least one connecting assembly, wherein the connecting assembly detachably connects the floating plate and the fixed plate together and can enable the floating plate to perform offset movement and deflection movement relative to the fixed plate.

In one embodiment, the fixing plate is provided with at least one through hole penetrating through the thickness of the fixing plate, the through hole penetrates through the floating plate, the connecting assembly comprises a stud, a bushing, a ball retainer and a gasket, the stud, the bushing, the ball retainer and the gasket are all inserted into the through hole, the bushing is sleeved on the stud, the ball retainer and the gasket are sequentially sleeved on the bushing, and a plurality of balls are embedded in the ball retainer.

In one embodiment, the test head further comprises a driving element and a force control element, the driving element comprises a housing, a second elastic part and a push rod movably arranged in the housing, the housing is fixed on the floating plate, one end of the second elastic part is fixed in the housing, the other end of the second elastic part is connected with one end of the push rod, the other end of the push rod is connected with the force control element, and the force control element is further connected with the test head and used for providing a set test pressure of the test head.

In one embodiment, the test device further comprises a connecting plate and a guiding mechanism, the connecting plate is fixed on the rack, the guiding mechanism comprises a guiding rod and a hook, one end of the guiding rod is fixed on the connecting plate, the test head is slidably sleeved on the guiding rod, the hook is arranged at the end part of the guiding rod far away from the connecting plate, and when the positioning pin moves towards the direction of withdrawing from the positioning hole, the hook can abut against the object stage.

The utility model provides a test sorting machine, includes objective table and a plurality of above-mentioned technical scheme any test device that floats, correspond on the objective table and seted up a plurality of silos that are used for holding electronic components.

Above-mentioned test sorting machine, including objective table and a plurality of test device that floats, floating mechanism can drive the test head and be deflection motion at the XY plane, the cooperation position of adjustment locating pin and locating hole, it can insert to the locating hole in to make the locating pin accurate, the test head can laminate completely on electronic components's (like IC chip) test face, the pressure that the test head was applyed on electronic components's test face is even, crimping stability is good, the test yield of test sorting machine has been improved, and the test sorting machine can test a plurality of electronic components simultaneously, the efficiency of software testing of test sorting machine has been improved.

Drawings

Fig. 1 is a schematic structural diagram of a floating test device and an objective table forming module provided by the present invention;

fig. 2 is an exploded schematic view of the floating mechanism provided by the present invention;

fig. 3 is a top view of the floating mechanism provided by the present invention;

FIG. 4 isbase:Sub>A sectional view of the structure taken along line A-A in FIG. 3;

fig. 5 is a schematic structural diagram of the floating plate and the fixed plate separated from each other in the floating testing device provided by the present invention.

Reference numerals are as follows:

100. a floating test device;

110. a floating mechanism; 111. a fixing plate; 1111. a second blind hole; 112. a floating plate; 1121. a first blind hole; 113. a reset assembly; 1131. a bowl seat; 1132. steel balls; 1133. a retaining ring; 1134. a guide post; 1135. a first elastic member; 114. a connection assembly; 1141. a stud; 1142. a bushing; 1143. a ball retainer; 1144. a gasket; 115. a through hole;

120. a drive source; 121. a drive element; 1211. a housing; 1212. a push rod; 1213. a second elastic member; 122. a force control element;

130. a test head; 131. positioning pins;

140. a connecting plate;

150. a guide mechanism; 151. a guide bar; 152. hooking;

200. an object stage; 210. positioning holes; 220. a trough.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be embodied in many other forms different from those described herein and similar modifications may be made by those skilled in the art without departing from the spirit and scope of the invention and, therefore, the invention is not to be limited to the specific embodiments disclosed below.

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", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and 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.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The technical solution provided by the embodiments of the present invention is described below with reference to the accompanying drawings.

As shown in fig. 1, the utility model provides a floating test device 100, floating test device 100 uses with objective table 200 cooperation, and objective table 200 is used for placing electronic components (like the IC chip), offers the silo 220 that is used for holding electronic components on objective table 200 promptly, has seted up at least one locating hole 210 on the objective table 200. The floating test apparatus 100 includes a frame (not shown), a floating mechanism 110, and a test head 130.

The floating mechanism 110 is disposed on the frame by screwing, welding, etc., and the floating mechanism 110 can perform a vertical offset motion on the frame relative to the stage 200. In other words, the floating mechanism 110 is movably mounted on the frame and can move toward or away from the object stage 200.

Test head 130 is attached to floating mechanism 110 by screwing, riveting, or the like. The test head 130 has at least one alignment pin 131 at an end portion close to the stage 200, and the alignment pin 131 is movable toward a direction of inserting into or withdrawing from the alignment hole 210, respectively. When the positioning pin 131 moves toward the direction of inserting into or withdrawing from the positioning hole 210, the floating mechanism 110 can perform a deflecting motion on the frame. Specifically, when the positioning pin 131 moves toward the direction of inserting into the positioning hole 210, if the positioning pin 131 and the positioning hole 210 are deviated, the floating mechanism 110 moves on the stage 200 in the direction away from the stage 200, so that the test head 130 can perform a deflection motion on the XY plane, and since the positioning pin 131 and the test head 130 are integrated, the positioning pin 131 can also perform a deflection motion on the XY plane, thereby adjusting the matching position of the positioning pin 131 and the positioning hole 210, so that the positioning pin 131 can be accurately inserted into the positioning hole 210. In the present embodiment, the number of the positioning pins 131 on the test head 130 is the same as the number of the positioning holes 210 on the stage 200.

According to the floating test device 100, when position errors are generated in the matching process of the positioning pin 131 and the positioning hole 210, the floating mechanism 110 drives the test head 130 to perform deflection motion on the XY plane, so that errors of the matching position of the positioning pin 131 and the positioning hole 210 caused by factors such as processing or assembly of the floating test device 100 are eliminated, the matching position of the positioning pin 131 and the positioning hole 210 is adjusted, the positioning pin 131 can be accurately inserted into the positioning hole 210, the test head 130 can be completely attached to the test surface of an electronic component, the pressure applied to the test surface of the electronic component by the test head 130 is uniform, the crimping stability is good, and the test yield of the floating test device 100 is improved.

In order to make the floating mechanism 110 capable of performing a deflecting motion on the rack, in a preferred embodiment, as shown in fig. 1 and 2, the floating mechanism 110 includes a fixed plate 111 and a floating plate 112, the floating plate 112 is detachably connected to the fixed plate 111, and the fixed plate 111 is fixed to the rack by screwing, welding, or the like, so as to integrally fix the floating mechanism 110 to the rack. The floating plate 112 can perform a shifting motion and a deflecting motion with respect to the fixed plate 111, and when the floating plate 112 performs a vertical shifting motion with respect to the fixed plate 111, the floating plate 112 can be separated from the fixed plate 111, and the floating plate 112 has a large rotation space, so that the floating plate 112 can perform a deflecting motion on the rack.

Specifically, as shown in fig. 2, the float mechanism 110 further includes at least one reset assembly 113. The reset assembly 113 is disposed between the fixed plate 111 and the floating plate 112, and is used for deflecting and resetting the floating plate 112. That is, under the action of the reset component 113, the floating plate 112 can perform a deflection motion with respect to the fixed plate 111, since the floating plate 112 and the fixed plate 111 are separable, when a matching position error occurs between the positioning pin 131 and the positioning hole 210, for example, when the positioning pin 131 is inserted into the positioning hole 210 in an inclined manner, the floating plate 112 and the fixed plate 111 are separated from each other, and the floating plate 112 performs a deflection motion with respect to the fixed plate 111 to adjust the matching position of the positioning pin 131 and the positioning hole 210, so that the positioning pin 131 can be accurately inserted into the positioning hole 210, and after the positioning pin 131 is accurately matched with the positioning hole 210, the reset component 113 can reset the floating plate 112, thereby facilitating the next detection of the floating testing device 100.

To fix the reset assembly 113, as shown in fig. 1, 2, 3 and 4, at least one first blind hole 1121 is formed in the floating plate 112, at least one second blind hole 1111 is formed in the fixing plate 111, the first blind hole 1121 is coaxial with the corresponding second blind hole 1111, and the first blind hole 1121 and the second blind hole 1111 are communicated with each other, that is, the open end of the first blind hole 1121 and the open end of the second blind hole 1111 are overlapped with each other. The first blind hole 1121 is opened to the surface of the floating plate 112 close to the fixed plate 111, and similarly, the second blind hole 1111 is opened to the surface of the fixed plate 111 close to the floating plate 112, so that the first blind hole 1121 and the second blind hole 1111 communicate with each other when the floating plate 112 and the fixed plate 111 are brought into contact with each other. One part of the reset component 113 is embedded in the first blind hole 1121, and the other part of the reset component 113 is correspondingly embedded in the second blind hole 1111, so that the reset component 113 can be correspondingly arranged between the floating plate 112 and the fixing plate 111, when the positioning pin 131 and the positioning hole 210 have a matching position error, the reset component 113 is convenient to adjust the angle between the floating plate 112 and the fixing plate 111, and further adjusts the matching position of the positioning pin 131 and the positioning hole 210, and the deflection reset of the floating plate 112 is realized after the positioning pin 131 and the positioning hole 210 are matched.

In this embodiment, four first blind holes 1121, four second blind holes 1111 and four reset components 113 are disposed, the four first blind holes 1121 are uniformly distributed on the floating plate 112 at intervals, the four second blind holes 1111 are uniformly distributed on the fixing plate 111 at intervals, and the four reset components 113 are correspondingly embedded in the four first blind holes 1121 and the four second blind holes 1111. By adopting the arrangement mode, all parts of the floating plate 112 are uniformly stressed in the adjusting process, and the floating plate 112 can perform deflection motion and deflection reset motion more smoothly. Of course, in other embodiments, the number of the first blind holes 1121, the second blind holes 1111 and the reset components 113 may be specifically set according to actual requirements, for example, two, six, eight or other numbers are set, and it is only necessary to satisfy that the number of the first blind holes 1121, the number of the second blind holes 1111 and the number of the reset components 113 are kept consistent and are preferably uniformly distributed on the floating plate at intervals, so as to ensure the uniformity of the stress of each part of the floating plate 112 in the adjustment process.

Further, as shown in fig. 1, fig. 2, fig. 3 and fig. 4, the reduction assembly 113 includes a bowl 1131, a steel ball 1132, a retaining ring 1133, a guide column 1134 and a first elastic member 1135. The bowl 1131 inlays and locates in first blind hole 1121, and bowl 1131 has a tapered slot, and the tapered slot opening is close to the surface of fixed plate 111 in bowl 1131, and the tapered slot is towards the inside shrink of bowl 1131, and steel ball 1132 movably sets up in bowl 1131 for the deflection and the reset of floating plate 112, and steel ball 1132 surface is located to retaining ring 1133 cover, carries on spacingly to steel ball 1132, avoids the biasing of steel ball 1132 emergence position. First elastic component 1135 inlays and locates in second blind hole 1111, and the one end of guide post 1134 is connected on first elastic component 1135, and the other end butt of guide post 1134 is on steel ball 1132, and first elastic component 1135 passes through guide post 1134 and acts on steel ball 1132 with elastic force all the time, ensures that steel ball 1132 keeps in contact with bowl seat 1131 all the time, and steel ball 1132 can only move about in bowl seat 1131. When a matching position error occurs between the positioning pin 131 and the positioning hole 210, under the action of an external force, the floating plate 112 and the fixed plate 111 are separated from each other, the first elastic member 1135 is stretched, and the steel ball 1132 moves in the tapered groove of the bowl 1131, so that the floating plate 112 can make a slight deflection motion relative to the fixed plate 111, that is, the floating mechanism 110 drives the test head 130 to make a slight deflection motion, so that the positioning pin 131 on the test head 130 is accurately matched with the positioning hole 210 on the object stage 200, and after the positioning pin 131 is matched with the positioning hole 210, along with disappearance of the external force, the steel ball 1132 continues to move in the tapered groove of the bowl 1131 to an initial position, and the floating plate 112 also makes a deflection reset.

In the present embodiment, the first elastic member 1135 is preferably a compression spring, and the first elastic member 1135 is deformable, so that the steel ball 1132 can be moved in the tapered groove of the bowl 1131 while the steel ball 1132 is always kept in contact with the bowl 1131, thereby deflecting and returning the floating plate 112. Of course, the first elastic member 1135 is also other elastic members, such as an elastic sheet, and the invention is not limited to the specific type of the first elastic member 1135.

In order to detachably couple the floating plate 112 to the fixed plate 111, in a preferred embodiment, as shown in fig. 1 and 2, the floating mechanism 110 further includes at least one coupling member 114, and the coupling member 114 detachably couples the floating plate 112 and the fixed plate 111 together and allows the floating plate 112 to perform a shifting movement and a deflecting movement with respect to the fixed plate 111.

Specifically, as shown in fig. 1 and 2, the fixed plate 111 has at least one through hole 115 penetrating through the thickness of the fixed plate 111 in the thickness direction thereof, and the through hole 115 penetrates the floating plate 112, in other words, the through hole 115 penetrates both the fixed plate 111, the through hole 115, and the floating plate 112. The connecting assembly 114 includes a stud 1141, a bushing 1142, a ball cage 1143, and a washer 1144, and the stud 1141, the bushing 1142, the ball cage 1143, and the washer 1144 are inserted into the through hole 115. The stud 1141 can realize the mutual connection between the floating plate 112 and the fixed plate 111, the bushing 1142 is sleeved on the stud 1141, so that the floating plate 112 and the fixed plate 111 only have the connection relationship and do not play a fastening role, and when the matching position between the positioning pin 131 and the positioning hole 210 needs to be adjusted, the floating plate 112 and the fixed plate 111 can be separated from each other due to the gap between the floating plate 112 and the fixed plate 111. The ball retainer 1143 and the washer 1144 are sequentially sleeved on the bushing 1142, a plurality of balls are embedded in the ball retainer 1143, when the deflection angle between the floating plate 112 and the fixed plate 111 is adjusted, the balls can move in the ball retainer 1143, and the movable balls, the bowl seat 1131 and the steel balls 1132 cooperate to adjust the deflection angle of the floating plate 112 and realize the deflection resetting of the floating plate 112.

In order to realize the deflecting motion and the offsetting motion of the floating mechanism 110 on the frame, in a preferred embodiment, as shown in fig. 1 and 5, the floating mechanism 110 further comprises a driving source 120, and the deflecting motion and the up-and-down offsetting motion of the floating mechanism 110 are realized under the action of the driving source 120. The driving source 120 includes a driving element 121 and a force control element 122. The driving element 121 includes a housing 1211, a second elastic element 1213 and a push rod 1212, wherein the push rod 1212 is movably disposed in the housing 1211, the housing 1211 is fixed to the floating plate 112 by screwing, welding, or the like, one end of the second elastic element 1213 is fixed in the housing 1211, the other end of the second elastic element 1213 is connected to one end of the push rod 1212, the other end of the push rod 1212 is connected to the force control element 122, the force control element 122 is further connected to the test head 130, the force control element 122 is configured to provide a set test pressure for the test head 130, and during a test process of the electronic component, a pressure applied to a surface of the electronic component by the test head 130 is set to be a set pressure value.

In the floating testing device 100, when the position of the positioning pin 131 and the positioning hole 210 has a matching position error, the push rod 1212 of the driving element 121 moves towards the direction of being received in the housing 1211, and in the process of compressing the second elastic element 1213, the driving element 121 drives the floating plate 112 to perform a deviation motion towards the direction away from the fixed plate 111, so that the floating plate 112 and the fixed plate 111 are separated from each other, because the testing head 130 is connected with the push rod 1212 through the force control element 122, the push rod 1212 can drive the testing head 130 to move towards the direction away from the stage 200, so that the positioning pin 131 moves towards the direction of being withdrawn from the positioning hole 210, and the testing head 130 performs a deflection motion at a slight angle, thereby adjusting the matching position of the positioning pin 131 and the positioning hole 210. After the positioning pins 131 are aligned with the positioning holes 210, the driving element 121 moves towards the direction extending out of the housing 1211, in the process of stretching the second elastic member 1213, the driving element 121 drives the floating plate 112 to perform a deviation motion towards the direction approaching the fixed plate 111, so that the floating plate 112 abuts against the fixed plate 111, the push rod 1212 drives the test head 130 to move towards the direction approaching the stage 200, the positioning pins 131 move towards the direction inserting into the positioning holes 210, so that the positioning pins 131 can be accurately inserted into the positioning holes 210, and the test head 130 can be completely attached to the test surface of the electronic component to apply a pressure required by the test to the electronic component.

In the present embodiment, the second elastic element 1213 is preferably a compression spring, and the second elastic element 1213 is deformable to ensure that the push rod 1212 can move in a direction of retracting into the housing 1211 or extending out of the housing 1211. Of course, the second elastic members 1213 may be other elastic members, such as elastic sheets, etc., and the present invention is not limited to the specific type of the second elastic members 1213.

As shown in fig. 1 and 5, the floating test apparatus 100 further includes a connection plate 140 and a guide mechanism 150. The connecting plate 140 is fixed on the rack by means of screwing, welding and the like, the guide mechanism 150 comprises a guide rod 151 and a hook 152, and one end of the guide rod 151 is fixed on the connecting plate 140, so that the guide mechanism 150 is fixedly connected with the rack. The test head 130 is slidably sleeved on the guide rod 151, and the guide rod 151 enables the test head 130 to move only along the axial direction of the guide rod 151 in the up-and-down movement process of the test head 130, so that the left-and-right direction deviation of the test head 130 in the movement process is prevented, and the position accuracy of the positioning pin 131 and the positioning hole 210 in the matching process is ensured. The hook 152 is provided at an end of the guide rod 151 away from the connection plate 140, and when the positioning pin 131 moves in a direction to withdraw from the positioning hole 210, the hook 152 may abut on the stage 200 to limit a separation state of the fixed plate 111 and the floating plate 112, and when the hook 152 abuts on the stage 200, it indicates that the fixed plate 111 and the floating plate 112 are separated from each other.

The following describes a specific adjustment process of the floating test apparatus 100 provided by the present invention with reference to fig. 1 to 5. In the present embodiment, the driving element 121 is a pneumatic element, and the force control element 122 is also a pneumatic element.

When the floating test device 100 is not tested, the interior of the casing 1211 of the driving element 121 is not inflated, the second elastic element 1213 is in the retracted position, the test head 130 is in the initial position, and under the action of gravity, the first elastic element 1135 in the reset assembly 113 is compressed, and the floating plate 112 abuts or fits on the fixed plate 111, as shown in fig. 1. When the floating test apparatus 100 performs a test, an electronic device (e.g., an IC chip, etc.) is placed in the trough 220 of the stage 200, the interior of the housing 1211 of the driving element 121 is inflated, the second elastic member 1213 is stretched, the push rod 1212 drives the test head 130 to move toward the stage 200 through the force control element 122, if the positioning pin 131 and the positioning hole 210 have a deviation of a matching position, the second elastic member 1213 is compressed under an abutting force of the positioning pin 131 and the stage 200, the floating plate 112 is separated from the fixed plate 111 under an elastic action of the second elastic member 1213, and the floating plate 112 drives the test head 130 to perform a slight deflection motion through the driving source 120 and the force control element 122 to adjust the matching position between the positioning pin 131 and the positioning hole 210, until the positioning pin 131 is inserted into the positioning hole 210, the test head 130 is attached to a test surface of the electronic device, and the test head 130 cannot move continuously. At this time, the interior of the force control element 122 is inflated, the force control element 122 pushes the push rod 1212, the second elastic element 1213 is compressed, the push rod 1212 drives the floating plate 112, the reset assembly 113 and the guide mechanism 150 to move together in a direction away from the stage 200 until the hook 152 abuts on the stage 200, which indicates that the fixed plate 111 and the floating plate 112 have been completely separated, and the force control element 122 controls the test head 130 to apply a set pressure value on the surface of the electronic component, as shown in fig. 5. At this time, since the test head 130 is completely attached to the test surface of the electronic component, the floating test apparatus 100 can test the electronic component.

After the electronic component is tested, the gas filled in the casing 1211 and the gas filled in the force control element 122 are sequentially exhausted, the second elastic element 1213 retracts, the positioning pin 131 exits from the positioning hole 210, the bowl 1131 drives the floating plate 112 to reset under the action of gravity and the rotation of the steel balls 1132, the floating plate 112 is abutted or attached to the fixed plate 111 again, the hook 152 is separated from the stage 200, and the test head 130 returns to the initial position, as shown in fig. 1, so that the next test on the electronic component is facilitated.

Additionally, the utility model also provides a test sorting machine, test sorting machine include objective table 200 and a plurality of above-mentioned technical scheme arbitrary unsteady testing arrangement 100, have seted up a plurality of silos 220 on the objective table 200, and silo 220 is used for holding electronic components.

The test sorting machine comprises an object stage 200 and a plurality of floating test devices 100, the floating mechanism 110 can drive the test head 130 to make deflection motion on an XY plane, the matching position of the positioning pin 131 and the positioning hole 210 is adjusted, the positioning pin 131 can be accurately inserted into the positioning hole 210, the test head 130 can be completely attached to a test surface of an electronic component (such as an IC chip), the pressure applied to the test surface of the electronic component by the test head 130 is uniform, the crimping stability is good, the test yield of the test sorting machine is improved, the test sorting machine can simultaneously test a plurality of electronic components, and the test efficiency of the test sorting machine is improved.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent several embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. The utility model provides a testing arrangement floats, uses with the objective table cooperation of placing electronic components, at least one locating hole has been seted up on the objective table, its characterized in that, the testing arrangement floats includes:

a frame;

the floating mechanism is arranged on the rack and can do vertical offset motion relative to the objective table on the rack;

the test head is connected to the floating mechanism, at least one positioning pin is arranged at the end part of the test head close to the objective table, the positioning pin can move towards the direction of inserting into or withdrawing from the positioning hole correspondingly, and when the positioning pin moves towards the direction of inserting into or withdrawing from the positioning hole, the floating mechanism can do deflection motion on the rack.

2. The floating test apparatus of claim 1, wherein the floating mechanism comprises a fixed plate and a floating plate detachably connected to the fixed plate, the fixed plate being fixed to the frame, the floating plate being capable of performing both a deflecting motion and a deflecting motion with respect to the fixed plate.

3. The floating test apparatus of claim 2, wherein the floating mechanism further comprises at least one reset assembly disposed between the fixed plate and the floating plate for deflection and resetting of the floating plate.

4. The floating testing device as claimed in claim 3, wherein the floating plate has at least a first blind hole, the fixed plate has a second blind hole coaxial with the first blind hole, the second blind hole is connected to the first blind hole, the first blind hole is opened on the surface of the floating plate close to the fixed plate, a part of the reset assembly is embedded in the first blind hole, and another part of the reset assembly is embedded in the second blind hole.

5. The floating testing device of claim 4, wherein the reset assembly comprises a bowl seat, a steel ball, a retaining ring, a guiding post and a first elastic member, the bowl seat is embedded in the first blind hole, the bowl seat has a tapered groove, the tapered groove is opened on the surface of the bowl seat close to the fixing plate and is contracted towards the inside of the bowl seat, the steel ball is movably arranged in the bowl seat, the retaining ring is sleeved on the surface of the steel ball, the first elastic member is embedded in the second blind hole, one end of the guiding post is connected to the elastic member, and the other end of the guiding post is abutted against the steel ball.

6. The floating test apparatus of claim 2, wherein the floating mechanism further comprises at least one coupling assembly detachably coupling the floating plate to the fixed plate and enabling the floating plate to perform both the deflecting and the offsetting movements with respect to the fixed plate.

7. The floating test device according to claim 6, wherein the fixing plate is provided with at least one through hole penetrating through the thickness of the fixing plate, the through hole penetrates through the floating plate, the connecting assembly comprises a stud, a bushing, a ball retainer and a gasket, the stud, the bushing, the ball retainer and the gasket are inserted into the through hole, the bushing is sleeved on the stud, the ball retainer and the gasket are sequentially sleeved on the bushing, and a plurality of balls are embedded in the ball retainer.

8. The floating test device of claim 2, further comprising a driving element and a force control element, wherein the driving element comprises a housing, a second elastic member and a push rod movably disposed in the housing, the housing is fixed on the floating plate, one end of the second elastic member is fixed in the housing, the other end of the second elastic member is connected to one end of the push rod, the other end of the push rod is connected to the force control element, and the force control element is further connected to the test head for providing a set test pressure of the test head.

9. The floating test device of claim 1, further comprising a connecting plate and a guiding mechanism, wherein the connecting plate is fixed on the frame, the guiding mechanism comprises a guiding rod and a hook, one end of the guiding rod is fixed on the connecting plate, the test head is slidably sleeved on the guiding rod, the hook is arranged at an end of the guiding rod far away from the connecting plate, and when the positioning pin moves towards a direction of withdrawing from the positioning hole, the hook can abut against the stage.

10. A test handler, comprising a stage and a plurality of floating test devices according to any one of claims 1 to 9, wherein the stage is correspondingly provided with a plurality of troughs for accommodating electronic components.

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