Mobile platform and electronic component transfer device

Abstract

The present invention provides a mobile platform and an electronic component transfer device. The mobile platform can be installed in the electronic component transfer device to move the electronic components to a position when the electronic component transfer device transports the electronic components for testing, hot pressing and other preset operations. The mobile platform drives a rotating part to rotate using a driving device. The rotating part has an eccentric shaft, and the eccentric shaft drives a connecting part to further drive the mobile platform to move, thereby providing an effect of accurately aligning the electronic components, eliminating the related components required by the floating mechanism, and achieving the characteristics of thinness, high alignment accuracy, elimination of the cost of floating airbags, and long service life.

Description

Technical Field

[0001] The invention relates to a mobile platform which can be used for moving electronic components for alignment. Background Art

[0002] Electronic component testing and sorting equipment can be used to test electronic components (such as ICs with solder balls). It mainly uses the sorting equipment to take out the electronic components from the electronic component trays one by one or in batches and transfer them to the testing equipment. After the testing equipment completes the test, the sorting equipment will classify, transfer and place the electronic components in designated locations according to the test results, such as on several different trays.

[0003] After the electronic components are manufactured, in addition to the above-mentioned test and classification operations, depending on the type and purpose of the electronic components, operations such as alignment installation and hot pressing may also need to be performed. The above-mentioned test equipment can be replaced with other different types of operation equipment to perform predetermined operations on the electronic components one by one or in batches. For example, the test and classification equipment includes Taiwan's TWI687289, TWI607223, TWI649247 and TWI641835 patents, and the hot pressing equipment includes Taiwan's TWI677774 patent, which can perform preset operations of test classification and hot pressing on electronic components respectively.

[0004] When the above-mentioned equipment performs predetermined operations on electronic components, it is necessary to pick up the electronic components and move them to predetermined positions. Due to the miniaturization and complexity of electronic components, the positions of electronic components must be precise and correctly aligned to avoid connecting the pins or circuit contacts of the electronic components to the wrong positions during testing or hot pressing, thereby causing circuit abnormalities.

[0005] For the precise alignment of the position of electronic components, reference may be made to Taiwan Patent No. TWI631651 and Taiwan Patent No. TWI543836. A floating mechanism may be used, such as the first sliding device and the second sliding device of Taiwan Patent No. TWI631651 or the airbag and movable part of Taiwan Patent No. TWI543836, in combination with guide columns and guide grooves, such as the detent member and the coupling member of Taiwan Patent No. TWI631651 or the docking portion and the mating portion of Taiwan Patent No. TWI543836, to float and translate the electronic components and automatically and accurately align them to the correct position.

[0006] Although the above-mentioned device can correctly align electronic components, the complexity of electronic components has led to an increasing number of circuit contacts of electronic components. When performing preset operations such as testing or hot pressing, the rated pressure applied to the electronic components is also increasing. The device contains air bags or passive sliding parts and guide columns for guiding alignment, which will be affected by pressure, sliding or deformation, and gradually wear out during each alignment and preset operation, affecting its service life. Summary of the invention

[0007] In view of this, one object of the present invention is to provide a device that can accurately align electronic components and has a longer service life.

[0008] To achieve the above-mentioned purpose, the present invention provides a mobile platform, including a fixed platform, a mobile platform, a plurality of driving devices, a plurality of rotating members and a plurality of connecting members. The driving device is arranged on the fixed platform, the rotating member has a rotating shaft and an eccentric shaft, the driving device can drive the rotating member to rotate around the rotating shaft, so that the eccentric shaft rotates around the rotating shaft, the connecting member has a first connecting part and a second connecting part, the first connecting part is connected to the mobile platform so that the mobile platform moves with the first connecting part, and the second connecting part is pivotally connected to the eccentric shaft.

[0009] In some embodiments, the first connection portion of the connection member of the mobile platform is pivotally connected to the mobile platform.

[0010] In some embodiments, the driving device of the mobile platform includes a motor and a reducer, wherein the reducer is connected between the motor and the rotating member, so that the motor can drive the rotating member to rotate via the reducer. The reducer can be embedded in the fixed platform.

[0011] In some embodiments, the moving platform of the moving platform has at least one slot, and the connecting member is movably received in the slot.

[0012] In some embodiments, the moving platform of the moving platform has an end surface, and the end surface is adjacent to the fixing platform and can be pressed against the fixing platform when under pressure.

[0013] In some embodiments, the movable platform further includes a fixing member and a plane bearing, the movable platform has a stepped portion, the plane bearing is clamped between the fixing member and the stepped portion, the fixing member has an extension portion, and the extension portion is disposed and fixed to the fixing platform.

[0014] In some embodiments, the above-mentioned mobile platform includes multiple driving devices, multiple rotating parts and multiple connecting parts. The multiple driving devices are respectively arranged on the fixed platform, the multiple driving devices are respectively connected to the multiple rotating parts and each can drive one of the rotating parts to rotate, the multiple rotating parts are respectively connected to the multiple connecting parts and each can drive one of the connecting parts to move, the multiple connecting parts are arranged along an intermediate plane, and the multiple connecting parts are driven by the multiple driving devices to move along the intermediate plane.

[0015] To achieve the above object, the present invention further provides an electronic component transfer device, which includes the mobile platform and further includes:

[0016] The substrate has an operation area, and the operation area is used for the electronic component operation device to perform a preset operation on the electronic component;

[0017] A storage device is disposed on the substrate, and the storage device is used to hold electronic components;

[0018] A transport device capable of transporting electronic components between the storage device and the working area;

[0019] A holder, located in the operation area, the holder can hold the position of the electronic component so that the electronic component operation device can perform a preset operation on the electronic component;

[0020] The movable platform is located at least one of the substrate, the storage device, the conveying device and the retainer to move the electronic component to a position.

[0021] To achieve the above object, the present invention further provides an electronic component transfer device, which includes the mobile platform and further includes:

[0022] The substrate has an operation area, and the operation area is used for the electronic component operation device to perform a preset operation on the electronic component;

[0023] A storage device is disposed on the substrate, and the storage device is used to hold electronic components;

[0024] A conveying device, disposed on the substrate, capable of conveying electronic components between the storage device and the working area;

[0025] A holder, located in the operation area, the holder can hold the position of the electronic component so that the electronic component operation device can perform a preset operation on the electronic component;

[0026] The movable platform is located at least one of the storage device, the conveying device and the retainer to move the electronic components to a position.

[0027] By utilizing the above-mentioned device, the present invention can apply the mobile platform to the electronic component transfer device, and use the mobile platform to accurately align the electronic components, thereby eliminating the related components required to implement the floating mechanism, thereby achieving the characteristics of reducing maintenance and equipment costs, improving alignment accuracy, thinning, and extending service life and maintenance cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a three-dimensional exploded view of the mobile platform of the present invention.

[0029] Figure 2 for Figure 1 AA cross-section diagram.

[0030] Figure 3 for Figure 1 BB cross-section diagram.

[0031] Figure 4 It is a top perspective view of the mobile station of the present invention.

[0032] Figure 5 for Figure 4 Schematic diagram of CC cross section.

[0033] Figures 6 to 8 Schematic diagram of the moving action of the mobile station of the present invention.

[0034] Fig. 9 It is a plan view of the electronic component transfer device of the present invention.

[0035] Fig.10 It is a schematic diagram of the mobile platform of the present invention being installed on the electronic component transfer device.

[0036] Fig.11 Another schematic diagram of the mobile platform of the present invention being installed on the electronic component transfer device.

[0037] Description of the reference numerals: fixed platform 1; containing grooves 11, 12, 13; movable platform 2; end surface 21; slots 22, 23, 24; extension hole 25; large diameter section 251; small diameter section 252; step surface 253; extension hole 26; large diameter section 261; small diameter section 262; step surface 263; support hole 28; first section 281; second section 282; third section 283; step portion 284; driving device 3, 3', 3"; motor 31; reducer 32; rotating member 4, 4', 4”; rotating shaft 41; eccentric shaft 42; connecting parts 5, 5', 5”; first connecting part 51; second connecting part 52; connecting arm 53; bearing 54; bearing 55; fixing part 6; head 61; extension part 62; plane bearing 7; base plate 81; working area 811; feeding device 821; discharging device 822; feeding arm 831; feeding platform 832; discharging platform 833; discharging arm 834; fixture 835; retainer 84; fixture 842; electronic component working device 85; electronic components 91, 92; tray 93. DETAILED DESCRIPTION

[0038] Please refer to Figure 1 The present invention provides a mobile platform, including a fixed platform 1, a mobile platform 2, three sets of driving devices 3, 3', 3", three rotating parts 4, 4', 4", three connecting parts 5, 5', 5", a fixed part 6 and a plane bearing 7.

[0039] The fixing platform 1 is a flat plate for fixing other components. However, if the fixing platform is changed to other shapes to meet the assembly requirements of other devices, it is also possible. The fixing platform 1 has three receiving grooves 11, 12, and 13, each of which extends and connects to the top and bottom surfaces of the fixing platform 1 respectively.

[0040] The movable platform 2 is a planar plate, arranged parallel to the fixed platform 1. Similar to the fixed platform 1, the movable platform can be configured to have other shapes other than a plate in combination with other devices. The top end surface 21 of the movable platform 2 is adjacent to the fixed platform 1. Please refer to Figures 1 to 3 The mobile platform 2 has three slots 22, 23, 24, each of which is recessed downward from the top end surface of the mobile platform 2. The mobile platform 2 also has three extension holes, each of which is recessed upward from the bottom end surface of the mobile platform 2. The three extension holes have the same shape and structure. Please refer to Figures 1 to 3 , taking the extension holes 25 and 26 as an example, Figure 3 As shown, the extension hole 25 has a large diameter section 251 and a small diameter section 252. The large diameter section 251 extends upward from the bottom end surface of the moving platform 2. The small diameter section 252 is connected between the large diameter section 251 and one of the slots 22. A step surface 253 is formed between the large diameter section 251 and the small diameter section 252. The moving platform 2 also has a support hole 28. The support hole 28 includes a first section 281, a second section 282 and a third section 283. The first section 281 and the third section 283 are respectively recessed in the top end surface 21 and the bottom end surface of the moving platform 2. The second section 282 is connected between the first section 281 and the third section 283. The inner diameter of the second section 282 is larger than the inner diameter of the first section 281. A step portion 284 is formed between the first section 281 and the second section 282. The inner diameter of the third section 283 is larger than the inner diameter of the second section 282.

[0041] The three groups of driving devices 3, 3', 3" are respectively connected to one of the three rotating parts 4, 4', 4", and the three rotating parts 4, 4', 4" are respectively connected to one of the three connecting parts 5, 5', 5", wherein the driving devices, rotating parts and connecting parts are three groups of the same or similar structures. The following only takes a single group of driving devices, rotating parts and connecting parts as a representative description. It should be noted that, in this embodiment, there are three groups of driving devices, rotating parts and connecting parts, which can jointly drive the mobile platform to move in three degrees of freedom, such as the x direction, the y direction and the θ rotation angle. However, if the mobile platform only needs a single degree of freedom, such as a single axial direction, or two degrees of freedom, such as a single axial direction and a rotation angle or two directions, the number of driving devices, rotating parts and connecting parts can be adjusted and changed, or even additional devices such as slide rails and pivots can be provided to assist the movement of the mobile platform.

[0042] Please refer to Figure 1 , Figure 4 and Figure 5The driving device 3 includes a motor 31 and a reducer 32. The motor 31 is connected to the reducer 32. The reducer 32 is embedded in and fixed to the fixed platform 1 and accommodated in the receiving groove 11 of the fixed platform 1, so that the driving device 3 is arranged and fixed to the fixed platform 1, and the overall volume of the alignment platform is reduced. Preferably, the reducer 32 can be a reducer with a larger reduction ratio (gear ratio) and no backlash in forward and reverse rotation; the motor 31 may be an electromagnetic motor such as a servo or stepper, or an ultrasonic motor driven by a piezoelectric element, depending on the requirements of cost, response capability, resolution or geometric appearance.

[0043] The rotating member 4 is accommodated in the slot 22. The rotating member 4 has a rotating shaft 41 and an eccentric shaft 42. The rotating shaft 41 is connected to the reducer 32. The extending direction of the rotating shaft 41 is defined as an axis. The motor 31 can drive the rotating member 4 to rotate around the axis through the reducer 32, so that the rotating member 4 can rotate around the axis relative to the fixed platform 1. The rotating shaft 41 and the eccentric shaft 42 are parallel and offset. When the rotating member 4 rotates, the eccentric shaft 42 also rotates around the axis.

[0044] The connecting member 5 is accommodated in the slot hole 22 and can move in the slot hole 22. The connecting member 5 has a first connecting portion 51, a second connecting portion 52 and a connecting arm 53 connected between the first connecting portion 51 and the second connecting portion 52. The first connecting portion 51 is a shaft extending downward and can be pivotally connected to the moving platform 2. In more detail, the connecting member 5 also includes a bearing 54, which is embedded in the moving platform 2 and located in the large diameter section 251 of the extension hole 25. The first connecting portion 51 extends downward from the slot hole 22 through the small diameter section 252 and is inserted into the bearing 54, so that the first connecting portion can pivot relative to the moving platform 2. The second connecting portion 52 has an axial hole and can be pivotally connected to the eccentric shaft 42. In more detail, the connecting member 5 also includes a bearing 55, which is embedded in the second connecting portion 52 and located in the axial hole of the second connecting portion 52. The eccentric shaft 42 is inserted into the bearing 55, so that the second connecting portion 52 can pivot relative to the rotating member. In the above embodiment, the first connecting portion 51 is rod-shaped, the movable platform 2 has a corresponding extension hole, the second connecting portion 52 has an axial hole, and the eccentric shaft 42 is rod-shaped. If the axial hole is formed in the first connecting portion and the movable platform forms a corresponding shaft rod, or the second connecting portion is rod-shaped and the eccentric shaft has a corresponding axial hole, it is feasible. Secondly, the bearings 54 and 55 are ball bearings, but it is also possible to use other types of bearings or directly omit the bearings.

[0045] Please refer to Figure 1 and Figure 5Each connecting member 5, 5', 5" is respectively connected between the reducer and the movable platform 2, and is accommodated in the slot of the movable platform. From the side view, the connecting members 5, 5', 5" are arranged along an intermediate plane, and move or swing along the intermediate plane when moving or swinging. The intermediate plane is parallel to the fixed platform 1 and the movable platform 2, and is perpendicular to the rotating shaft 41, the eccentric shaft 42 and the first connecting portion 51.

[0046] The fixing member 6 is, for example, a bolt, and has a head portion 61 with a larger outer diameter and an extending portion 62 with a smaller outer diameter. The extending portion 62 has threads and extends upward from the head portion 61 .

[0047] The plane bearing 7 has a through hole, and the plane bearing is accommodated in the second section 282 of the support hole. The fixing member 6 abuts against the plane bearing 7 and clamps the plane bearing 7 between the step portion 284 and the head 61. The extension portion 62 of the fixing member further passes through the through hole of the plane bearing 7 and is fixed upward to the fixing platform 2 by, for example, a screw lock. Preferably, the side edge of the plane bearing 7 abuts against the inner wall of the second section 282, and the longitudinal length of the plane bearing 7 is greater than the length of the second section 282, so that the plane bearing 7 partially protrudes and is accommodated in the third section 283.

[0048] Using the above device, please refer to Figures 6 to 8 The three driving devices 3, 3', 3" can each drive one of the three rotating members 4, 4', 4" to rotate, and further drive one of the three connecting members 5, 5', 5" to move. The three connecting members 5, 5', 5" can be pivotally arranged on the moving platform 2 and can drive the moving platform to move while swinging, so that the moving platform 2 can be moved as shown in FIG. Figure 6 Move in the x direction as shown, or Figure 7 Move in the y direction as shown, or Figure 8 It is shown to rotate but not move, but can drive the moving platform to move and rotate arbitrarily in the plane.

[0049] Based on the above, the mobile platform of the present invention can be installed in a holder, a conveying device or a storage device of an electronic component transfer device, please refer to Fig. 9The electronic component transfer device is, for example, a classifier in an electronic component test and classification device, including a substrate 81, a storage device, a conveying device and a retainer 84, which can be matched with an electronic component operation device 85, for example, a tester in an electronic component test and classification device, to perform classification and testing operations of electronic components, wherein the substrate 81 has an operation area 811 for placing electronic components, and the electronic component operation device 85 can be arranged below or above the operation area 811, and the electronic component operation device 85 performs preset operations such as electrical testing on the electronic components in the operation area 811; the storage device is arranged on the substrate 81, including a feeding device 821 and a discharging device 822, which can hold electronic components 91 and 92 to be operated and operated. Or a tray 93 for holding electronic components; the conveying device includes an infeed arm 831, an infeed carrier 832, an outfeed carrier 833 and an outfeed arm 834. The infeed arm 831 can pick up the electronic component 91 to be operated from the infeed device 821, and place it on the infeed carrier 832 after moving. The infeed carrier 832 can carry the electronic component and move it to the side of the working area 811, and then the electronic component is picked up by the retainer 84 and moved to the working area for a predetermined operation. After the predetermined operation is completed, the retainer 84 will move to the side of the working area 811 again. The outfeed carrier 833 can receive and carry the electronic component from the retainer 84 on the side of the working area 811, and move the electronic component away from the working area 811. The outfeed arm 834 can pick up the electronic component from the outfeed carrier, and according to the operation result of the preset operation of the electronic component, the operated electronic component 92 is moved and placed at the designated position in the outfeed device 822.

[0050] In the above device, the moving platform can be applied to the holder 84, for example, Fig. 9 and Fig.10 , the mobile platform can be first installed on the horizontal and vertical movement tracks by the fixed table 1 or the driving device 3, and then the base 841 is further installed under the mobile table 2, and then the jig 842 used for picking up and pressing down the electronic components is installed under the base 841. After the retainer picks up the electronic components and moves them to the working area, the position of the electronic components can be observed using the sensor or lens set on the retainer or its surroundings, and then the mobile platform is used to drive the mobile table to move, thereby driving the base 841 and the electronic components under the jig 842 to move. After the electronic components are actually moved to the right position, the electronic components are driven down and pressed against the electronic component working device. Secondly, the mobile platform can also be used in the feeding carrier 832, for example, refer to Fig. 9 and Fig.11The movable platform can be flipped upside down so that the movable platform 2 is positioned above the fixed platform 1, and the movable platform is installed on the horizontal moving track by the fixed platform 1 or the driving device 3, and then the platform and / or the jig 835 used to carry the electronic components are installed above the movable platform 2. Before the retainer 84 picks up the electronic components from the feed platform 832, the position of the electronic components can be observed by using the sensor or lens arranged on the feed platform or its surroundings, and the electronic components can be moved and aligned first, and the retainer 84 can directly pick up the electronic components with accurate alignment to perform the preset operation.

[0051] In addition to the above embodiments, the feeding device 821 and the feeding arm 831 can also hold or drive the electronic components to move. It is also possible to set a moving platform on the feeding device or the feeding arm to directly or indirectly move the electronic components for alignment.

[0052] In the above embodiment, a rigid connecting arm is provided between the first connecting portion and the second connecting portion of the connecting member, and the first connecting portion is swingably disposed on the mobile platform. In other possible embodiments of the present invention, the connecting arm may be changed to a component with elastic deformation capability such as a leaf spring, and the first connecting portion may be directly disposed on the mobile platform without swinging, and the mobile platform may be moved by virtue of the elastic deformation of the connecting arm, thereby achieving a similar use effect as the above embodiment.

[0053] In the above embodiment, the rotating member is connected to the reducer of the driving device, and the motor and reducer in the driving device are used to drive the rotating member to rotate. However, in other possible embodiments of the present invention, the rotating member can be rotatably set on a fixed table, and other forms of driving devices such as piezoelectric elements, ultrasonic motors or motor pulley groups can be used to drive the rotating member to rotate, which can also achieve similar usage effects as the above embodiment.

[0054] Using the above device, the electronic component transfer device can transport electronic components for the electronic component operation device to perform preset operations on the electronic components. During the process of transporting the electronic components, the electronic components can be accurately positioned to avoid incorrect connection of circuit contacts due to position offset, thereby ensuring that the preset operations are performed correctly.

[0055] Secondly, the reducer in the above-mentioned mobile platform can be embedded in the fixed platform, and the rotating parts and connecting parts can be accommodated in the slots of the mobile platform, so that the overall appearance of the mobile platform only has a motor, a mobile platform and a fixed platform, which can reduce the overall size and make it thinner, which is beneficial to the design and assembly of the machine.

[0056] In addition, the mobile platform uses a motor, a reducer, a rotating part and a connecting part to drive the mobile table. By matching the resolution of the motor, the reduction ratio of the reducer, the eccentric distance of the eccentric shaft of the rotating part and the length of the connecting part, the mobile table movement of several centimeters to dozens of centimeters can provide micron-level or even nano-level resolution and high positioning accuracy.

[0057] Furthermore, since the retainer needs to press the electronic component against the electronic component operating device, the position of the electronic component can be observed in advance by means of a sensor or lens, and the electronic component can be accurately aligned using a mobile platform. This can eliminate the sliding parts, airbags, guide columns, guide grooves and other components required for the floating mechanism, thereby reducing equipment costs. At the same time, it can avoid maintenance costs, labor costs and reduced equipment utilization rates caused by the exhaustion of the service life of components such as airbags.

[0058] The movable platform in the above movable platform can be close to the fixed platform with its top end surface. If it is squeezed by a large external force in the vertical direction, the top end surface of the movable platform can directly abut against the fixed platform, thereby avoiding excessive external force from being applied to internal parts such as rotating parts, connecting parts, and plane bearings, thereby increasing the service life of internal parts. When the movable platform is set in a retainer, even if the retainer presses downward against the electronic components, it will not affect the service life of the various components of the movable platform. It has the characteristics of stable structure and long service life.

[0059] In summary, the mobile platform of the present invention can be used to move electronic components for alignment, and has the characteristics of miniaturization, thinness and high precision, which can ensure that preset operations such as testing are carried out correctly, while eliminating related components of the floating mechanism and maintaining the service life in a repeatedly stressed use environment.

Claims

1. An electronic component transfer device, characterized in that: It includes a substrate, a mobile platform, a storage device, a conveying device and a retainer, wherein: The mobile platform comprises: Fixed table; The movable platform has an end surface that is adjacent to the fixed platform and can be pressed against the fixed platform when under pressure, and the movable platform has a plurality of slots and a plurality of extension holes that are interconnected; A plurality of rotating members, the rotating members can rotate relative to the fixed platform about an axis, and the rotating members have an eccentric shaft; A plurality of driving devices are respectively disposed on the fixed platform, and the plurality of driving devices are respectively connected to the plurality of rotating members and can each drive one of the rotating members to rotate, so that the eccentric shaft rotates around the axis; A plurality of connecting members, each having a first connecting portion, a second connecting portion, and a connecting arm connected between the first connecting portion and the second connecting portion, wherein the second connecting portion and the connecting arm of the connecting member are movably accommodated in the slot hole, and the first connecting portion of the connecting member is accommodated and can be pivoted in the extension hole, so that the first connecting portion is connected to the moving platform and the moving platform moves with the first connecting portion, and the second connecting portion is pivotally connected to the eccentric shaft, so that the plurality of connecting members drive the moving platform to perform multiple degrees of freedom adjustment in the XY direction and the θ rotation angle; A fixing member and a plane bearing, the movable platform has a stepped portion, the plane bearing is clamped between the fixing member and the stepped portion, the fixing member has an extension portion, and the extension portion is arranged and fixed to the fixing platform; The substrate has an operation area, and the operation area is used for the electronic component operation device to perform a preset operation on the electronic component; The storage device is arranged on the substrate, and the storage device is used for holding electronic components; The transport device can transport electronic components between the storage device and the working area; The holder is located in the working area, and the holder can hold the position of the electronic component so that the electronic component working device can perform a preset operation on the electronic component; The movable platform is located at least one of the substrate, the storage device, the conveying device and the retainer to move the electronic component to a position.

2. The electronic component transfer device according to claim 1, wherein: The driving device comprises a motor and a reducer, wherein the reducer is connected between the motor and the rotating member, so that the motor can drive the rotating member to rotate via the reducer.

3. The electronic component transfer device according to claim 2, characterized in that: The reducer is embedded in the fixing platform.

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