Gripping device and test handler

Abstract

The application relates to the technical field of semiconductor testing, and discloses a clamping device and a test sorting machine. The clamping device comprises a support plate, first limiting columns and first abutting pieces arranged at opposite ends of the support plate in a second direction and used for jointly clamping a tray, a first elastic piece, second limiting columns and second abutting pieces arranged at opposite ends of the support plate in a third direction and used for jointly clamping the tray, a second elastic piece and a driving mechanism. A driving assembly of the driving mechanism is used for driving a transmission piece of the driving mechanism to reciprocate in a direction parallel to the second direction. The transmission piece can move in the second direction under the driving of the driving assembly, so as to push the first abutting piece to move away from the first limiting column after overcoming the elastic force of the first elastic piece, and push the second abutting piece to move away from the second limiting column after overcoming the elastic force of the second elastic piece through the protruding part. In the above manner, the material cost and control cost of the clamping device can be reduced.

Description

Technical Field

[0001] This application relates to the field of semiconductor testing technology, and in particular to a clamping device and a test sorting machine. Background Technology

[0002] In the semiconductor manufacturing and good product management process, semiconductor devices that have undergone specified manufacturing processes must be tested for performance and parameters using a testing instrument. A test sorter is used to move the devices under test (DUTs) to the interface position of the testing instrument for electrical connection. During operation, the clamping device of the test sorter is used to hold and fix the tray during transfer, ensuring the stability of the DUTs during movement.

[0003] Existing clamping devices typically position the material tray by using two drive components to drive two grippers to clamp and position the tray from both sides. However, this positioning method requires two drive components, resulting in high material and control costs. Utility Model Content

[0004] In view of the problems existing in the background art, the purpose of this application is to provide a clamping device and a test sorting machine that overcomes or at least partially solves the above problems.

[0005] According to a first aspect of this application, a clamping device is provided, including a support plate, a first limiting post, a first abutment, a first elastic member, a second limiting post, a second abutment, a second elastic member, and a driving mechanism. The support plate includes a first surface and a second surface disposed opposite to each other along a first direction, the first surface being used to support a material tray. The first limiting post and the first abutment are disposed at opposite ends of the support plate along a second direction, the first abutment being slidably disposed on the support plate along the second direction, and the first abutment and the first limiting post jointly clamping the material tray. The first elastic member is connected to the first abutment and the support plate, and the first elastic member is used to generate an elastic force resisting the first abutment from moving away from the first limiting post. The second limiting post and the second abutment are disposed at opposite ends of the support plate along a third direction, the second abutment being movably disposed on the support plate, and the second abutment and the second limiting post jointly clamping the material tray. The second elastic member is connected to the second abutment and the support plate, and the second elastic member is used to generate an elastic force resisting the second abutment from moving away from the second limiting post. The driving mechanism includes a driving assembly and a transmission component connected to each other. The driving assembly drives the transmission component to reciprocate in a direction parallel to the second direction. The transmission component has a protrusion on the side facing the second abutment, and the second abutment abuts against the protrusion. The transmission component can move in the second direction under the drive of the driving assembly to push the first abutment away from the first limiting post, and to push the second abutment away from the second limiting post through the protrusion. The first direction, the second direction, and the third direction are all perpendicular to each other.

[0006] In one or more of the above optional embodiments, the support plate is provided with a mounting part, the mounting part having a mounting hole extending along a second direction. The first abutment member includes a connecting part, a telescopic rod, and an abutment part. One end of the telescopic rod is connected to the connecting part, and the other end of the telescopic rod is inserted into the mounting hole. The telescopic rod can reciprocate relative to the mounting hole in a direction parallel to the second direction. The abutment part is connected to the connecting part. A first elastic member is sleeved on the telescopic rod, and both ends of the first elastic member abut against the mounting part and the connecting part, respectively. The abutment part is used to clamp the material tray together with the first limiting post. The connecting part can overcome the elastic force of the first elastic member under the push of the transmission member, and drive the telescopic rod and the abutment part to move away from the first limiting post.

[0007] In one or more of the above optional embodiments, the support plate is provided with a clearance hole that penetrates the support plate along a first direction. The mounting part, the connecting part, and the telescopic rod are provided on the side facing away from the first surface. The abutting part is provided through the clearance hole. At least a portion of the abutting part protruding from the first surface is used to clamp the material tray together with the first limiting post. The abutting part can move relative to the clearance hole in a direction parallel to the second direction.

[0008] In one or more of the above optional embodiments, the second abutment includes a first rod and a second rod. One end of the first rod is connected to one end of the second rod, and the first and second rods are arranged at an included angle. The connection between the first and second rods is rotatably mounted on a support plate. The other end of the first rod is positioned closer to the transmission member than the other end of the second rod. The other end of the second rod is used to clamp the material tray together with the second limiting post. One end of the second elastic member is connected to the support plate, and the other end of the second elastic member is connected to the other end of the second rod. When the transmission member moves along the second direction, the protrusion pushes the other end of the first rod, causing the second abutment to overcome the elastic force of the second elastic member and rotate around the connection, thereby causing the other end of the second rod to move away from the second limiting post.

[0009] In one or more of the above optional embodiments, the second abutment, the transmission member, and the second limiting post are arranged sequentially along a third direction. The surface of the protrusion that abuts against the second abutment includes a connected flat portion and an inclined portion. The flat portion and the inclined portion are arranged sequentially along the second direction. The end of the inclined portion away from the flat portion is inclined towards the third direction relative to the flat portion. The flat portion and the inclined portion are used to abut against the second abutment sequentially when the transmission member moves along the second direction.

[0010] In one or more of the above optional embodiments, the number of protrusions, second abutments and second elastic members are both two and are arranged in a one-to-one correspondence, and the two second abutments are arranged sequentially along the first direction.

[0011] In one or more of the above optional embodiments, the second abutment is provided with a first roller, the first roller is used to abut against the protrusion, and the first roller is capable of rolling along the transmission member toward the surface of the second abutment; and / or the second abutment is provided with a second roller, the second roller is used to abut against the tray.

[0012] In one or more of the above optional embodiments, the drive mechanism includes a slide rail and a slider. The slide rail extends along a first direction and is disposed on a second surface. The slider is slidably disposed on the slide rail, and the transmission member is fixed to the slider. And / or along a third direction, a drive assembly is disposed on one side of the transmission member. The drive assembly includes a drive part and a push rod. The drive mechanism includes a connector. One end of the push rod is connected to the drive part, the other end of the push rod is connected to one end of the connector, and the other end of the connector is connected to the transmission member.

[0013] In one or more of the above optional embodiments, a photoelectric reflection sensor is provided at the edge of the first surface, and the photoelectric reflection sensor is used to detect whether the clamping device is clamping the material tray.

[0014] According to a second aspect of this application, a test sorting machine is provided, including the clamping device described above.

[0015] The beneficial effects of the embodiments of this application are as follows: The clamping device provided by this application drives the first abutment and the second abutment to clamp and lock the material tray by the elastic force of the first elastic member and the elastic force of the second elastic member, respectively. And by a drive component driving the transmission component to synchronously push the first abutment and the second abutment to overcome the elastic force and move away from the first limit post and the second limit post respectively to achieve unlocking. Compared with the prior art, which uses two drive components to drive two grippers respectively, it can meet the requirement of stable clamping of the material tray while reducing the material cost and control cost of the clamping device. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0017] Figure 1 A schematic diagram of a clamping device provided in an embodiment of this application; Figure 2 This is a schematic diagram of a clamping device clamping a material tray according to an embodiment of this application; Figure 3 This is a schematic diagram of a clamping device clamping a material tray according to an embodiment of this application; Figure 4 This is a schematic diagram of a clamping device clamping a material tray according to an embodiment of this application; Figure 5 This is a partial schematic diagram of the transmission component of a clamping device provided in an embodiment of this application. Detailed Implementation

[0018] To facilitate understanding of this application, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," "inner," "outer," and similar expressions used in this specification are for illustrative purposes only.

[0019] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0020] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0021] Please see Figures 1-4The clamping device 100 includes a support plate 1, a first limiting post 2, a first abutment 3, a first elastic member 4, a second limiting post 5, a second abutment 6, a second elastic member 7, and a driving mechanism 8. The support plate 1 includes a first surface 1a and a second surface 1b arranged opposite each other along a first direction X. The first surface 1a is used to support the material tray A. The first limiting post 2 and the first abutment 3 are disposed at opposite ends of the support plate 1 along a second direction Y. The first abutment 3 is slidably disposed on the support plate 1 along the second direction Y. The first abutment 3 and the first limiting post 2 are used to jointly clamp the material tray A. The first elastic member 4 is connected to the first abutment 3 and the support plate 1, and the first elastic member 4 is used to generate an elastic force against the first abutment 3 moving away from the first limiting post 2. The second limiting post 5 and the second abutment 6 are disposed at opposite ends of the support plate 1 along the third direction Z. The second abutment 6 is movably disposed on the support plate 1. The second abutment 6 and the second limiting post 5 are used to jointly clamp the material tray A. The second elastic member 7 is connected to the second abutment 6 and the support plate 1. The second elastic member 7 is used to generate an elastic force against the second abutment 6 moving away from the second limiting post 5. The driving mechanism 8 includes a driving assembly 81 and a transmission member 82 connected to each other. The driving assembly 81 is used to drive the transmission member 82 to reciprocate in a direction parallel to the second direction Y. The transmission member 82 has a protrusion 821 on the side facing the second abutment 6, and the second abutment 6 abuts against the protrusion 821. The transmission member 82 can move along the second direction Y under the drive of the driving assembly 81, pushing the first abutment 3 away from the first limiting post 2, and pushing the second abutment 6 away from the second limiting post 5 through the protrusion 821. Among them, the first direction X, the second direction Y and the third direction Z are mutually perpendicular.

[0022] During operation, the drive assembly 81 drives the transmission component 82 to move along the second direction Y. The transmission component 82 pushes the first abutment 3 to overcome the elastic force of the first elastic element 4 and move away from the first limiting post 2. The protrusion 821 pushes the second abutment 6 to overcome the elastic force of the second elastic element 7 and move away from the second limiting post 5. At this time, the clamping device 100 is in the unlocked state, and the tray A can be placed on the first surface 1a, which supports the tray A. After the tray A is placed, the drive assembly 81 drives the transmission component 82 to move in the opposite direction to the second direction Y. Under the action of the elastic force of the first elastic element 4, the first abutment 3 moves closer to the first limiting post 2, and at the same time, the second abutment 6 moves closer to the second limiting post 5 under the action of the elastic force of the second elastic element 7, until the first abutment 3 and the first limiting post 2 jointly clamp the opposite two edges of the tray A along the second direction Y, and the second abutment 6 and the second limiting post 5 jointly clamp the opposite two edges of the tray A along the third direction. Figure 4 As shown, the clamping device 100 is in a locked state at this time, firmly clamping the material tray A so that the device under test on the material tray A can be transferred and tested in the future.

[0023] The clamping device 100 provided in this application uses the elastic force of the first elastic member 4 and the elastic force of the second elastic member 7 to drive the first abutment member 3 and the second abutment member 6 to clamp and lock the material tray A. A drive assembly 81 drives the transmission member 82 to simultaneously push the first abutment member 3 and the second abutment member 6 away from the first limit post 2 and the second limit post 5 to overcome the elastic force and unlock. Compared with the prior art, which uses two drive assemblies to drive two grippers respectively, this method can meet the requirement of stable clamping of the material tray A while reducing the material cost and control cost of the clamping device 100.

[0024] Please see Figures 2-4 In some embodiments, the support plate 1 is provided with a mounting portion 11, and the mounting portion 11 is provided with a mounting hole 111. The mounting hole 111 extends along the second direction Y. The first abutment member 3 includes a connecting portion 31, a telescopic rod 32, and an abutment portion 33. One end of the telescopic rod 32 is connected to the connecting portion 31, and the other end of the telescopic rod 32 is inserted into the mounting hole 111. The telescopic rod 32 can slide back and forth relative to the mounting hole 111 in a direction parallel to the second direction Y. The abutment portion 33 is connected to the connecting portion 31. The first elastic member 4 is sleeved on the telescopic rod 32, and both ends of the first elastic member 4 abut against the mounting portion 11 and the connecting portion 31, respectively. The abutment portion 33 is used to clamp the material tray A together with the first limiting post 2. The connecting portion 31 can overcome the elastic force of the first elastic member 4 under the push of the transmission member 82, and drive the telescopic rod 32 and the abutment portion 33 away from the first limiting post 2.

[0025] During operation, the abutment part 33, under the action of the elastic force of the first elastic member 4, and the first limiting post 2 together clamp and fix the material tray A in the second direction Y. When it is necessary to release the limiting of the material tray A in the second direction Y, the transmission member 82 moves along the second direction Y under the drive of the drive assembly 81. After the transmission member 82 pushes the connecting part 31 to overcome the elastic force of the first elastic member 4, it drives the telescopic rod 32 and the abutment part 33 to move away from the first limiting post 2, so as to release the clamping and positioning effect of the clamping device 100 on the material tray A in the second direction Y.

[0026] It is understandable that the magnitude of the force exerted by the abutment portion 33 and the first limiting post 2 on the material tray A is related to the elastic coefficient of the first elastic element 4 and the stroke of the first elastic element 4 being compressed. When the elastic coefficient of the first elastic element 4 is large, the clamping force of the abutment portion 33 and the first limiting post 2 on the material tray A will also increase accordingly. When the material tray A is placed between the first limiting post 2 and the abutment portion 33, the material tray A abuts against the abutment portion 33 along the second direction Y, causing the first elastic element 4 to be compressed to a certain extent. The greater the stroke of the first elastic element 4 being compressed, the greater the clamping force of the abutment portion 33 and the first limiting post 2 on the material tray A.

[0027] In some embodiments, along the second direction Y, one end of the transmission member 82 facing the second abutment member 6 is fixedly connected to the connecting portion 31. When the transmission member 82 moves in a direction parallel to the second direction, the second abutment member 6 moves with the transmission member 82.

[0028] In other embodiments, the end of the transmission member 82 facing the second abutment member 6 abuts against the connecting portion 31 along the second direction Y. When the transmission member 82 moves along the second direction Y, it drives the connecting portion 31 to move through the abutment action.

[0029] In some embodiments, the first elastic element 4 is a spring.

[0030] In some embodiments, a sliding bearing (not shown) is provided in the mounting hole 111, and the telescopic rod 32 is slidably inserted into the sliding bearing. The sliding bearing helps to reduce the friction between the telescopic rod 32 and the mounting hole 111.

[0031] In some embodiments, the first abutment 3 includes two telescopic rods 32, and the number of mounting holes 111 and the number of first elastic elements 4 are the same as the number of telescopic rods 32 and are arranged in a one-to-one correspondence.

[0032] Please see Figure 1 and Figure 2 In some embodiments, the drive mechanism 8, the first elastic member 4 and the second elastic member 7 are all disposed on one side of the first surface 1a of the back box along the first direction X. Parts of the first abutment 3 and the second abutment 6 protrude from the first surface 1a after passing over the support plate 1 along the direction from the second surface 1b to the first surface 1a, so as to cooperate with the first limiting post 2 and the second limiting post 5 respectively to jointly hold the tray A carried on the first surface 1a.

[0033] In some embodiments, the support plate 1 is provided with a clearance hole 12, which penetrates the support plate 1 along the first direction X. The mounting part 11, the connecting part 31 and the telescopic rod 32 are all provided on the side facing away from the first surface 1a. The abutting part 33 is provided through the clearance hole 12. At least a portion of the abutting part 33 protrudes from the first surface 1a and is used to clamp the material tray A together with the first limiting post 2. The abutting part 33 can move relative to the clearance hole 12 in a direction parallel to the second direction Y.

[0034] In some embodiments, the first abutting member 3 includes two abutting portions 33, which are arranged side by side along the third direction Z on the connecting portion 31. The number of clearance holes 12 is the same as the number of abutting portions 33 and they are arranged in a one-to-one correspondence.

[0035] In some embodiments, the clearance hole 12 is a strip-shaped hole extending along a first direction X.

[0036] Please see Figures 1-3In some embodiments, the second abutment 6 includes a first rod portion 61 and a second rod portion 62. One end of the first rod portion 61 is connected to one end of the second rod portion 62. The first rod portion 61 and the second rod portion 62 are arranged at an included angle. The connection between the first rod portion 61 and the second rod portion 62 is rotatably mounted on the support plate 1. The end of the first rod portion 61 that is away from the second rod portion 62 is closer to the transmission member 82 than the end of the second rod portion 62 that is away from the first rod portion 61. The end of the second rod portion 62 that is away from the first rod portion 61 is used to clamp the material tray A together with the second limiting post 5. One end of the second elastic member 7 is connected to the support plate 1, and the other end of the second elastic member 7 is connected to the end of the second rod portion 62 that is away from the first rod portion 61.

[0037] When the transmission member 82 moves along the second direction Y, the protrusion 821 pushes the first rod 61 away from the end of the second rod 62, causing the second abutment 6 to overcome the elastic force of the second elastic member 7 and rotate around the connection between the first rod 61 and the second rod 62. This causes the end of the second rod 62 away from the first rod 61 to move away from the second limiting post 5. At this time, the clamping device 100 releases its clamping and positioning function on the material tray A in the third direction Z. When it is necessary to return to the locked state, the drive mechanism 8 drives the transmission member 82 to move in the opposite direction to the second direction Y, so that the protrusion 821 avoids the first rod 61 in the third direction Z. Under the elastic force of the second elastic member 7, the second abutment 6 rotates in the opposite direction around the connection between the first rod 61 and the second rod 62, thereby causing the end of the second rod 62 away from the first rod 61 to move closer to the second limiting post 5, until the second abutment 6 and the second limiting post 5 jointly clamp the material tray A. At this time, the clamping device 100 restores the clamping and positioning function of the material tray A in the third direction Z.

[0038] In some embodiments, the second elastic member 7 is a tension spring. When the transmission member 82 moves along the second direction Y under the drive of the drive assembly 81, and the protrusion 821 abuts against the end of the first rod 61 away from the second rod 62, the tension spring is stretched and stores elastic potential energy.

[0039] It is understandable that the magnitude of the force exerted by the second limiting post 5 and the second abutment 6 on the material tray A is related to the elastic coefficient of the second elastic element 7 and the stretching stroke of the second elastic element 7. When the elastic coefficient of the second elastic element 7 is large, the clamping force of the second abutment 6 and the second limiting post 5 on the material tray A will also increase accordingly. When the material tray A is placed between the second limiting post 5 and the second abutment 6, the material tray A abuts against the second abutment 6, causing the second elastic element 7 to be stretched to a certain extent. The greater the stretching stroke of the second elastic element 7, the greater the clamping force of the second abutment 6 and the second limiting post 5 on the material tray A.

[0040] Please see Figures 3-5In some embodiments, the second abutment 6, the transmission member 82, and the second limiting member 5 are arranged sequentially along the third direction Z. The surface of the protrusion 821 that abuts against the second abutment 6 includes a connected flat portion 8211 and a sloped portion 8212. Along the second direction Y, the flat portion 8211 and the sloped portion 8212 are arranged sequentially. The end of the sloped portion 8212 away from the flat portion 8211 is inclined towards the third direction Z relative to the flat portion 8211. The flat portion 8211 and the sloped portion 8212 are used to abut against the second abutment 6 sequentially when the transmission member 82 moves along the second direction Y. By setting the inclined portion 8212, during the movement of the transmission member 82 along the second direction Y, the end of the inclined portion 8212 away from the flat portion 8211 first contacts the second abutment member 6. As the transmission member 82 continues to move, the inclined portion 8212 gradually pushes the second abutment member 6 away from the second limiting post 5 after overcoming the elastic force of the second elastic member 7, until the second abutment member 6 abuts against the flat portion 8211. When the transmission member 82 moves in the opposite direction to the second direction Y, the flat portion 8211 first separates from the second abutment member 6, and then the inclined portion 8212 gradually reduces the pushing force on the second abutment member 6. Under the action of the elastic force of the second elastic member 7, the second abutment member 6 moves closer to the second limiting post 5 and returns to its initial position. This design reduces the impact generated when the second abutment member 6 contacts or separates from the protrusion 821, which helps to make the movement process of the second abutment member 6 more stable and improves the stability and reliability of the clamping device 100.

[0041] In some embodiments, the planar portion 8211 is disposed perpendicular to the third direction Z.

[0042] In some embodiments, the number of protrusions 821, second abutment 6 and second elastic member 7 are both two and are arranged in a one-to-one correspondence, and the two second abutment members 6 are arranged sequentially along the first direction X.

[0043] In some embodiments, the second abutment 6 is provided with a first roller 611, which abuts against the protrusion 821 and can roll along the surface of the transmission member 82 toward the second abutment 6. By providing the first roller 611, it is beneficial to reduce the friction between the protrusion 821 and the second abutment 6, making the movement of the transmission member 82 of the second abutment 6 smoother. In embodiments where the protrusion 821 is provided with a sloped portion 8212, the first roller 611 is located at the end of the first rod portion 61 away from the second rod portion 62, and the first roller 611 can reciprocate along the sloped portion 8212, thereby further reducing the frictional resistance of the second abutment 6 during movement.

[0044] In some embodiments, along the third direction Z, the support plate 1 has a mounting post 13 on the side edge away from the second limiting post 5, and the connection between the first rod portion 61 and the second rod portion 62 is rotatably disposed on the mounting post 13. The connection between the first rod portion 61 and the second rod portion 62 can rotate about the mounting post 13 along a rotation axis parallel to the first direction X.

[0045] In some embodiments, the second abutment 6 is provided with a second roller 621, which is used to abut against the tray A. By providing the second roller 621, it is beneficial to reduce the friction between the second abutment 6 and the tray A during the clamping and releasing of the tray A, thereby reducing the damage to the tray A and the device under test on it caused by friction or impact.

[0046] In some embodiments, a second roller 621 is disposed at the end of the second rod 62 away from the first rod 61, and the second roller 621 is rotatable about a rotation axis parallel to the first direction X.

[0047] In some embodiments, the first roller 611 and the second roller 621 include, but are not limited to, cam followers.

[0048] Please see Figure 2 In some embodiments, the drive mechanism 8 includes a slide rail 84 and a slider 85. The slide rail 84 extends along a first direction X and is disposed on the second surface 1b. The slider 85 is slidably disposed on the slide rail 84, and the transmission member 82 is fixed to the slider 85.

[0049] In some embodiments, along the third direction Z, the drive assembly 81 is disposed on one side of the transmission member 82. The drive assembly 81 includes a drive part 811 and a push rod 812. The drive mechanism 8 includes a connector 83. One end of the push rod 812 is connected to the drive part 811, and the other end of the push rod 812 is connected to one end of the connector 83. The other end of the connector 83 is connected to the transmission member 82. The fact that the drive assembly 81 is disposed on one side of the transmission member 82 helps to reduce the size of the clamping device 100 in the first direction X.

[0050] In some embodiments, the drive unit 811 is a cylinder, and the push rod 812 is connected to the piston part of the cylinder. The cylinder drives the push rod 812 to perform linear reciprocating motion through the reciprocating motion of the piston part. It is understood that the drive unit 811 is not limited to a cylinder. For example, in some other embodiments, the drive unit 811 may also be a motor.

[0051] In some embodiments, a photoelectric reflection sensor 9 is provided at the edge of the first surface 1a. The photoelectric reflection sensor 9 is used to detect whether the clamping device 100 is clamping the material tray A. The photoelectric reflection sensor 9 can be connected to the control system of the test sorting machine, and determines whether the material tray A is present by emitting light and receiving the reflected light.

[0052] Based on the same inventive concept, this application also provides a test sorting machine, including the clamping device 100 in any of the above embodiments.

[0053] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A clamping device, characterized in that, include: The support plate includes a first surface and a second surface disposed opposite to each other along a first direction, wherein the first surface is used to support the material tray; A first limiting post and a first abutting member are disposed at opposite ends of the support plate along the second direction. The first abutting member is slidably disposed on the support plate along the second direction. The first abutting member and the first limiting post are used to jointly clamp the material tray. A first elastic element is connected to the first abutment and the support plate. The first elastic element is used to generate an elastic force that resists the first abutment from moving away from the first limiting post. A second limiting post and a second abutment are disposed at opposite ends of the support plate along a third direction. The second abutment is movably disposed on the support plate. The second abutment and the second limiting post are used to jointly clamp the material tray. The second elastic element is connected to the second abutment and the support plate, and the second elastic element is used to generate an elastic force against the second abutment moving away from the second limiting post; The driving mechanism includes a driving component and a transmission component connected to each other. The driving component is used to drive the transmission component to reciprocate in a direction parallel to the second direction. The transmission component has a protrusion on the side facing the second abutment, and the second abutment abuts against the protrusion. The transmission component can move in the second direction under the drive of the driving component to push the first abutment away from the first limiting post, and to push the second abutment away from the second limiting post through the protrusion. Wherein, the first direction, the second direction, and the third direction are mutually perpendicular to each other.

2. The clamping device according to claim 1, characterized in that, The support plate is provided with a mounting part, the mounting part is provided with a mounting hole, the mounting hole extends along the second direction, the first abutment member includes a connecting part, a telescopic rod and an abutment part, one end of the telescopic rod is connected to the connecting part, the other end of the telescopic rod is inserted into the mounting hole, the telescopic rod can slide back and forth relative to the mounting hole in a direction parallel to the second direction, the abutment part is connected to the connecting part, the first elastic member is sleeved on the telescopic rod, and the two ends of the first elastic member abut against the mounting part and the connecting part respectively; The abutting part is used to clamp the material tray together with the first limiting post. The connecting part can overcome the elastic force of the first elastic member under the push of the transmission member, and drive the telescopic rod and the abutting part to move away from the first limiting post.

3. The clamping device according to claim 2, characterized in that, The support plate is provided with a clearance hole, which penetrates the support plate along the first direction. The mounting part, the connecting part, and the telescopic rod are located on the side facing away from the first surface. The abutting part passes through the clearance hole. At least a portion of the abutting part protrudes from the first surface to clamp the material tray together with the first limiting post. The abutting part can move relative to the clearance hole in a direction parallel to the second direction.

4. The clamping device according to claim 1, characterized in that, The second abutment includes a first rod and a second rod. One end of the first rod is connected to one end of the second rod. The first rod and the second rod are arranged at an angle. The connection between the first rod and the second rod is rotatably mounted on the support plate. The other end of the first rod is closer to the transmission member than the other end of the second rod. The other end of the second rod is used to clamp the material tray together with the second limiting post. One end of the second elastic member is connected to the support plate, and the other end of the second elastic member is connected to the other end of the second rod. When the transmission member moves along the second direction, the protrusion is used to push the other end of the first rod, so that the second abutment member overcomes the elastic force of the second elastic member and rotates around the connection, thereby causing the other end of the second rod to move away from the second limiting post.

5. The clamping device according to claim 4, characterized in that, The second abutment, the transmission member, and the second limiting post are arranged sequentially along the third direction. The surface of the protrusion that abuts against the second abutment includes a connected flat portion and an inclined portion. Along the second direction, the flat portion and the inclined portion are arranged sequentially. The end of the inclined portion away from the flat portion is inclined relative to the flat portion towards the third direction. The flat portion and the inclined portion are used to abut against the second abutment sequentially when the transmission member moves along the second direction.

6. The clamping device according to claim 4, characterized in that, The number of the protrusion, the second abutment and the second elastic member are all two and are arranged in a one-to-one correspondence. The two second abutments are arranged sequentially along the first direction.

7. The clamping device according to any one of claims 1-6, characterized in that, The second abutment is provided with a first roller, which abuts against the protrusion and is capable of rolling along the transmission member toward the surface of the second abutment; and / or The second abutment is provided with a second roller, which is used to abut against the tray.

8. The clamping device according to any one of claims 1-6, characterized in that, The driving mechanism includes a slide rail and a slider. The slide rail extends along the first direction and is disposed on the second surface. The slider is slidably disposed on the slide rail. The transmission component is fixed to the slider; and / or Along the third direction, the drive assembly is disposed on one side of the transmission member. The drive assembly includes a drive part and a push rod. The drive mechanism includes a connecting member. One end of the push rod is connected to the drive part, the other end of the push rod is connected to one end of the connecting member, and the other end of the connecting member is connected to the transmission member.

9. The clamping device according to any one of claims 1-6, characterized in that, The edge of the first surface is provided with a photoelectric reflection sensor, which is used to detect whether the clamping device is clamping the material tray.

10. A testing and sorting machine, characterized in that, Includes the clamping device as described in any one of claims 1-9.

Images