Workpiece conveying system

Abstract

The present invention relates to a workpiece conveying system, comprising: a linear transfer mechanism, the linear transfer mechanism comprises a first transmission member moving along a first direction; a side lifting mechanism, arranged on the first transmission member, comprising a lifting load plate and a first lifting assembly driving the lifting load plate; a rotary transfer mechanism, arranged on one side of the linear transfer mechanism, comprising a rotating platform and a rotary transfer plate driven to rotate by the rotating platform, the rotary transfer plate being provided with a first positioning assembly; a clamping mechanism, the clamping mechanism comprising a second lifting assembly and a second positioning assembly driven to lift by the second lifting assembly. The rotary transfer plate and the clamping mechanism are independently arranged, and the rotary transfer plate can receive the next carrier after transferring the carrier carrying the chip to be burned to the clamping mechanism. Each batch of chips is already under the burning tester before burning, and only needs a lifting action, thereby reducing the burning time and improving the burning efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of chip burning and programming, and in particular to a workpiece conveying system for conveying chips to burning and programming equipment. Background Art

[0002] Chip burning refers to burning the control program and data into a blank chip using a burning tester. This technology can be used to burn blank chips into chips with different functions as needed, so designers do not need to prepare many types of chips.

[0003] When burning a chip, it is necessary to transport the chip to a burning tester for burning. In the traditional technology, the chips at different positions on the circumference of the chip carrier are rotated and then lifted to the burning tester for burning in sequence. The defects of the above method are that the size of the chip carrier is large; it takes a long time to complete the burning of a batch of chips, and the burning efficiency is low. Especially when burning for a long time, it cannot meet the technical development requirements of chip burning. Summary of the invention

[0004] Based on this, it is necessary to propose a workpiece conveying system to address the problem of low chip burning efficiency.

[0005] A workpiece conveying system includes: a linear transfer mechanism for transporting a carrier that can carry a chip to be burned, the linear transfer mechanism including a first transmission member that moves along a first direction; a side lifting mechanism, the side lifting mechanism is arranged on the first transmission member, the side lifting mechanism includes a lifting and lowering load plate, and a first lifting component that drives the lifting and lowering of the lifting and lowering load plate; a rotary transfer mechanism, arranged on one side of the linear transfer mechanism, the rotary transfer mechanism includes a rotating platform, and a rotary transfer plate driven to rotate by the rotating platform, the rotary transfer plate is provided with a first positioning component for receiving the carrier transmitted by the lifting and lowering load plate; a clamping mechanism for receiving and positioning the carrier output by the rotary transfer plate, the clamping mechanism includes a second lifting component, and a second positioning component driven to lift and lower by the second lifting component.

[0006] When the above-mentioned workpiece conveying system is in use, the carrier carrying the chip to be burned is placed on the lifting and lowering plate of the side lifting mechanism, and the first transmission member is used to bring the carrier close to the rotary transfer mechanism. The first lifting component drives the lifting and lowering plate to rise, and at the same time, the first transmission member drives the side lifting mechanism to continue to move forward, so that the carrier enters the positioning range of the first positioning component, and then the first positioning component is used to position the carrier, and the side lifting mechanism retreats and separates from the carrier. The rotary transfer plate of the rotary transfer mechanism rotates to drive the carrier to move to the second positioning component and is positioned by the second positioning component, and then the rotary transfer plate is reset to receive the next carrier conveyed by the side lifting mechanism. The second positioning component rises under the drive of the second lifting component to make the chip contact and conduct with the burning tester above for chip burning. By repeating the above process, the chip can be continuously conveyed to the burning tester for burning. The rotating transfer plate and the clamping mechanism are independently arranged. The rotating transfer plate transfers the carrier carrying the chip to be burned to the clamping mechanism and can receive the next carrier. Before burning, each batch of chips is already under the burning tester and only needs a lifting action, which can reduce the burning time and improve the burning efficiency.

[0007] In one embodiment, the workpiece conveying system also includes a moving component, which is arranged on the first transmission member, and the moving component includes a second transmission member that can move along a second direction, the second transmission member moves in the same plane as the first transmission member, the second direction is perpendicular to the first direction, and the side lifting mechanism is arranged on the second transmission member.

[0008] In one embodiment, the linear transfer mechanism is a linear motor, the first transmission member includes a mover of the linear motor, the linear transfer mechanism includes a main body and a protective belt, the main body has a slide groove along the first direction, the first transmission member is slidably engaged with the slide groove, the protective belt is connected to the first transmission member, and the protective belt surrounds the main body and covers the slide groove.

[0009] In one embodiment, the first lifting component includes a base, a driving unit, a tilted lift block and a linkage member, the lifting bearing plate is movably connected to the base, the upper surface of the lifting bearing plate facing away from the base is a bearing surface, the tilted lift block is connected to the driving unit, the linkage member is connected to the lifting bearing plate, and the movement plane of the tilted lift block is set at an angle to the movement plane of the linkage member.

[0010] In one of the embodiments, the linkage member is connected to the lifting bearing plate via a pivot, the linkage member can rotate around the pivot, and the surface of the linkage member in contact with the inclined lift block is an outer cylindrical surface.

[0011] In one embodiment, the inclined lift block is provided with an inclined surface that can press the linkage member, and the inclined lift block is also provided with a top surface, the top surface is connected to the top end of the inclined surface, and the top surface is parallel to the movement direction of the inclined lift block.

[0012] In one embodiment, the first positioning assembly includes a first clamping member and a second clamping member, a clamping space is formed between the first clamping member and the second clamping member, at least one of the first clamping member and the second clamping member is a movable element, wherein the first clamping member and the second clamping member are arranged on the edge of the rotating transfer plate, and the edge of the rotating transfer plate is provided with a notch, and the first clamping member and the second clamping member are located on both sides of the notch.

[0013] In one embodiment, the second positioning component includes a vacuum suction plate, the vacuum suction plate is provided with a suction surface, the suction surface has a first suction area for adsorbing the chip and a second suction area for adsorbing the carrier, the vacuum suction plate is connected to a first vacuum adsorption pipeline and a second vacuum adsorption pipeline, the first vacuum adsorption pipeline is connected to the first adsorption area, and the second vacuum adsorption pipeline is connected to the second adsorption area.

[0014] In one embodiment, the second positioning assembly further includes a flexible buffer module, and the flexible buffer module is located between the second lifting assembly and the vacuum suction plate.

[0015] In one embodiment, the vacuum suction plate is movably connected to the flexible buffer module. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the overall structure of a chip conveying system according to an embodiment of the present invention.

[0017] Figure 2 for Figure 1 Side view of the chip delivery system shown.

[0018] Figure 3 It is a schematic diagram of the overall structure of the linear transfer mechanism and the moving components in the chip conveying system according to an embodiment of the present invention.

[0019] Figure 4 for Figure 3 Top view of the structure shown.

[0020] Figure 5 for Figure 4 Sectional view along AA direction.

[0021] Figure 6 for Figure 3 Schematic diagram of the structure shown after removing the protective strips and moving components.

[0022] Figure 7It is a schematic diagram of the overall structure of the side lifting mechanism in the chip conveying system according to an embodiment of the present invention.

[0023] Figure 8 for Figure 7 A side view of the side jacking mechanism shown.

[0024] Fig. 9 for Figure 7 Exploded view of the side lifting mechanism shown.

[0025] Fig.10 and Fig.11 They are schematic diagrams of the overall structure at different angles of the rotary transfer mechanism in the chip conveying system of the embodiment of the present invention.

[0026] Fig.12 and Fig.13 Schematic diagram of the overall structure of the second positioning component at different angles in the chip conveying system according to an embodiment of the present invention.

[0027] Fig.14 It is a schematic diagram of the structure of the vacuum suction plate in the second positioning assembly.

[0028] The corresponding numbers of the relevant components in the figure are as follows:

[0029] 10. Linear transfer mechanism; 110. First transmission member; 111. Moving member connecting plate; 120. Main body; 121. Slideway; 130. Protective belt; 140. Reversing roller; 150. Grating ruler;

[0030] 20, side lifting mechanism; 210, lifting bearing plate; 211, guide rod; 212, bearing surface; 213, positioning pin; 214, vacuum suction port; 215, air extraction port; 216, groove; 220, first lifting assembly; 221, base; 2211, accommodating chamber; 222, driving unit; 223, inclined lifting block; 2231, inclined surface; 2232, top surface; 224, linkage; 225, linear bearing; 226, pivot; 230, guide rail; 240, reset member; 250, sensor;

[0031] 30. Rotary transfer mechanism; 310. Rotary platform; 320. Rotary transfer plate; 321. Notch; 322. First end; 323. Second end; 330. First positioning assembly; 331. First clamping member; 332. Second clamping member; 333. Power source; 340. Displacement sensor;

[0032] 40. Clamping mechanism; 410. Second lifting assembly; 420. Second positioning assembly; 421. Vacuum suction plate; 4211. First adsorption area; 4212. Second adsorption area; 4213. First vacuum adsorption pipeline; 4214. Second vacuum adsorption pipeline; 4215. Sealing ring; 4216. Positioning column; 422. Flexible buffer module; 423. Pressure sensor; 424. First adapter plate; 425. Guide member; 426. Second adapter plate; 427. Slide rail;

[0033] 50, moving component; 510, second transmission component; 520, reading head;

[0034] 200, Vehicle;

[0035] 300. Chips. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0039] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0041] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0042] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings.

[0043] like Figure 1 , Figure 2 As shown, an embodiment of the present invention provides a workpiece conveying system, specifically a chip conveying system, for conveying a chip 300 to a burning tester (not shown) for burning. Figure 1 and Figure 2 The overall structure of the workpiece conveying system conveying the carrier 200 carrying the chip 300 is illustrated from different perspectives. The workpiece conveying system includes a linear transfer mechanism 10, a lateral lifting mechanism 20, a rotary transfer mechanism 30 and a clamping mechanism 40, wherein the linear transfer mechanism 10 is used to transport the carrier 200 carrying the chip 300 to be burned, the lateral lifting mechanism 20 is used to receive the carrier 200 and transfer it to the rotary transfer mechanism 30, the rotary transfer mechanism 30 is used to transfer the carrier 200 to the clamping mechanism 40, and the clamping mechanism 40 is used to position the carrier 200 and transport it to the burning device.

[0044] like Figures 3 to 6 As shown, the linear transfer mechanism 10 includes a first transmission member 110 that moves along a first direction, i.e., the Y direction, and the first transmission member 110 is used to drive the carrier 200 to move in a plane. The first transmission member 110 is usually configured to move in a horizontal plane, and accordingly, the carrier 200 is transported in the horizontal plane. The linear transfer mechanism 10 has the function of linearly transmitting the transmission object. In a preferred embodiment, the linear transfer mechanism 10 is a linear motor. However, it should be noted that in terms of meeting the basic requirement of linear transmission, the type of the linear transfer mechanism 10 is not limited in the embodiments of the present invention. When the linear transfer mechanism 10 is a linear motor, the first transmission member 110 is the mover of the linear motor. Accordingly, when the linear transfer mechanism 10 is other types of linear transmission modules, the first transmission member 110 is a linear motion element in the linear transmission module.

[0045] The side lifting mechanism 20 is disposed on the first transmission member 110 and is driven to move by the first transmission member 110. The side lifting mechanism 20 is used to position the carrier 200. In other words, the carrier 200 is placed on the side lifting mechanism 20 and moves linearly together with the side lifting mechanism 20 under the drive of the first transmission member 110. The side lifting mechanism 20 is used to transfer the carrier 200 to the rotary transfer mechanism 30.

[0046] like Figures 7 to 9 As shown, the side lifting mechanism 20 includes a lifting load plate 210 and a first lifting assembly 220 for driving the lifting load plate 210 to lift and lower. The lifting load plate 210 is used to lift the carrier 200 to facilitate the docking of the carrier 200 with the rotating transfer plate 320. The movement plane of the lifting load plate 210 and the movement plane of the first transmission member 110 are perpendicular to each other. The movement plane of the first transmission member 110 is usually a horizontal plane, and the movement plane of the lifting load plate 210 is a vertical plane. The type of the first lifting assembly 220 is not limited.

[0047] like Figure 1 and Figure 2 As shown, the rotary transfer mechanism 30 is disposed on one side of the linear transfer mechanism 10, and is used to receive the carrier 200 on the lifting and lowering carrier plate 210 and transfer it to the clamping mechanism 40. Fig.10 and Fig.11 As shown, the rotary transfer mechanism 30 includes a rotary platform 310 and a rotary transfer plate 320 driven to rotate by the rotary platform 310. The rotary transfer plate 320 rotates within the motion plane of the first transmission member 110. A first positioning assembly 330 is provided on the rotary transfer plate 320 for receiving the carrier 200. The rotary platform 310 is a platform that can output rotary motion, such as a servo motor platform with a rotary output shaft.

[0048] like Figure 1As shown, the clamping mechanism 40 is used to receive and position the carrier 200 output by the rotating transfer plate 320. The clamping mechanism 40 includes a second lifting assembly 410 and a second positioning assembly 420 driven to be lifted by the second lifting assembly 410. The movement plane of the second positioning assembly 420 and the movement plane of the first transmission member 110 are perpendicular to each other. When the movement plane of the first transmission member 110 is a horizontal plane, the movement plane of the second positioning assembly 420 is a vertical plane.

[0049] The working principle of the above workpiece conveying system is as follows: the carrier 200 carrying the chip 300 to be burned is placed on the lifting and lowering plate 210 of the side lifting mechanism 20, and the first transmission member 110 is used to bring the carrier 200 close to the rotary transfer mechanism 30. The first lifting assembly 220 drives the lifting and lowering plate 210 to rise, and at the same time, the first transmission member 110 drives the side lifting mechanism 20 to continue to move forward, so that the carrier 200 enters the positioning range of the first positioning assembly 330, and then the first positioning assembly 330 is used to position the carrier 200, and the side lifting mechanism 20 retreats and separates from the carrier 200. The rotary transfer plate 320 of the rotary transfer mechanism 30 rotates to drive the carrier 200 to move to the second positioning assembly 420 and is positioned by the second positioning assembly 420, and then the rotary transfer plate 320 is reset to receive the next carrier 200 conveyed by the side lifting mechanism 20. The second positioning assembly 420 is driven by the second lifting assembly 410 to rise so that the chip 300 is in contact with the burn tester above to burn the chip 300. By repeating the above process, the chip 300 can be continuously transported to the burn tester for burning.

[0050] In the above-mentioned workpiece conveying system, the rotating transfer plate 320 and the clamping mechanism 40 are independently arranged. The rotating transfer plate 320 transfers the carrier 200 carrying the chip 300 to be burned to the clamping mechanism 40 and can receive the next carrier 200. Each batch of chips 300 is already under the burning tester before burning, so only one lifting action is required, which can reduce the time consumption of burning and improve the burning efficiency.

[0051] When the first transmission member 110 of the linear transfer mechanism 10 moves in the first direction in the horizontal plane, it can drive the carrier 200 to approach the rotary transfer mechanism 30, and the first transmission member 110 drives the side lifting mechanism 20 to continue to move forward, so that the carrier 200 enters the positioning range of the first positioning assembly 330, and then the first positioning assembly 330 is used to position the carrier 200. In the above process, the position of the carrier 200 on the side lifting mechanism 20 may be deviated, which may cause the carrier 200 to fail to smoothly enter the positioning range of the first positioning assembly 330.

[0052] In order to solve the above problems, the workpiece conveying system is also provided with a moving assembly 50. The moving assembly 50 is arranged on the first transmission member 110, and the moving assembly 50 includes a second transmission member 510 that can move along the second direction. The second transmission member 510 moves in the same plane as the first transmission member 110, and the second direction is perpendicular to the first direction. The side lifting mechanism 20 is arranged on the second transmission member 510. When specifically arranged, the first transmission member 110 moves along the first direction, i.e., the Y direction, in the horizontal plane, and the second transmission member 510 moves along the second direction, i.e., the X direction, in the horizontal plane. In this way, the linear transfer mechanism 10 and the moving assembly 50 together constitute an X / Y two-dimensional transfer platform. In this way, when there is a deviation in the position of the carrier 200 on the side lifting mechanism 20, the position of the carrier 200 in the X direction in the horizontal plane can be adjusted by the second transmission member 510, so that it can be smoothly transferred to the rotary transfer mechanism 30. In a specific embodiment, the moving assembly 50 is a linear motor, which is an X-axis motor, and the second transmission member 510 is a mover of the linear motor. The second transmission member 510 is connected to the side lifting mechanism 20 via a connecting plate.

[0053] like Figures 3 to 6 As shown, the linear transfer mechanism 10 is a linear motor, which is a Y-axis motor, and the first transmission member 110 includes a mover of the linear motor. The linear motor itself is small in size and high in precision, and is suitable for use in places with narrow space widths. The length can be set arbitrarily according to needs. The linear transfer mechanism 10 includes a main body 120, wherein the main body 120 has a slide groove 121 along a first direction, and a stator (not marked) is arranged in the slide groove 121. The first transmission member 110 is slidably assembled in the slide groove 121. In the specific setting, the first transmission member 110 is connected to a mover connecting plate 111, and the mover connecting plate 111 is connected to the moving component 50.

[0054] In order to prevent dust from entering the slide groove 121 and protect the components in the slide groove 121, the linear transfer mechanism 10 is further provided with a protective belt 130 covering the slide groove 121. The protective belt 130 is connected to the first transmission member 110 and surrounds the main body 120 and covers the slide groove 121. Figure 3 As shown, the protective belt 130 bypasses the two ends of the main body 120 in the first direction, and the two ends of the protective belt 130 are located on both sides of the movable connecting plate 111 and are respectively connected to the movable connecting plate 111. When the first transmission member 110 moves along the first direction, the first transmission member 110 drives the protective belt 130 to move, so that the protective belt 130 reciprocates around the main body 120, so that the protective belt 130 can always cover the slide 121 to achieve the purpose of dust prevention. In the specific setting, the protective belt 130 is connected to the movable connecting plate 111. The protective belt 130 refers to an annular conveyor belt connected end to end. In other embodiments, the protective belt 130 can also be an annular belt, which passes through the movable connecting plate 111 and is fixedly connected to the movable connecting plate 111.

[0055] In the above-mentioned linear transfer mechanism 10, a protective belt 130 is used for protection, which can reduce the overall height of the linear motor transfer mechanism compared with the use of a metal cover plate for protection in a traditional linear motor; during the movement of the first transmission member 110, the protective belt 130 always shields the slide groove 121, and the protection effect is consistently maintained in a better state.

[0056] Furthermore, in some embodiments, the protective belt 130 is at least partially embedded in the slide groove 121. The protective belt 130 can be embedded in the slide groove 121, and its top can be flush with the top of the slide groove 121, or slightly higher than the top of the slide groove 121, or lower than the top of the slide groove 121. In this way, the protective belt 130 has little effect on the height dimension of the linear transfer mechanism 10.

[0057] The first transmission member 110 drives the protection belt 130 to move, so that the protection belt 130 moves around the main body 120. In order to make the protection belt 130 move smoothly, in the first direction, reversing rollers 140 are respectively provided between the two ends of the main body 120 and the protection belt 130. Figure 3 and Figure 5 As shown, a reversing roller 140 is provided between the left end of the main body 120 and the protective belt 130, and a reversing roller 140 is also provided between the right end of the main body 120 and the protective belt 130. When the protective belt 130 moves around the main body 120, the protective belt 130 passes through the surface of the reversing roller 140, so that the friction force of the protective belt 130 during the movement is small. In addition, the reversing roller 140 can tension the protective belt 130 and has a certain guiding effect on the protective belt 130. Furthermore, a guide groove can be provided on the reversing roller 140, and the width of the guide groove is slightly larger than the width of the protective belt 130, so as to better guide the movement of the protective belt 130.

[0058] like Figure 5 As shown, in a specific implementation, a reversing roller 140 is provided at each corner at both ends of the main body 120. As shown in the figure, a reversing roller 140 is provided at the upper corner of the left end of the main body 120, and a reversing roller 140 is also provided at the lower corner. A reversing roller 140 is provided at the upper corner of the right end of the main body 120, and a reversing roller 140 is also provided at the lower corner. Through the above arrangement, the friction force of the protection belt 130 is small when it changes direction at each corner.

[0059] In the width direction of the protection belt 130, the size of the protection belt 130 is smaller than the size of the main body 120. In the embodiment of the present invention, the width direction of the protection belt 130 is just consistent with the second direction, and the size of the main body 120 in the width direction of the protection belt 130 is defined as the width of the main body 120. The width of the protection belt 130 is set to be smaller than the size of the main body 120, and the provision of the protection belt 130 does not increase the width size of the linear transfer mechanism 10.

[0060] In a preferred embodiment, the size of the main body 120 is set to be less than 70mm, which can load less than 1kg and meet the needs of transmitting the chip 300; at the same time, due to its extremely small width, it is suitable for use in a narrow width space, solving the problem of insufficient operating width of the equipment space.

[0061] like Figure 3 As shown, the linear transfer mechanism 10 is provided with a grating ruler 150 along the first direction, and the moving assembly 50 is provided with a reading head 520. When the first transmission member 110 moves, the reading head 520 moves relative to the grating ruler 150 and reads the reading of the grating ruler 150, so that the position of the first transmission member 110 can be accurately known, thereby achieving the purpose of accurately controlling the position of the carrier 200 in the Y direction. As an example, the grating ruler 150 can be installed on the outer wall of the main body 120.

[0062] The linear transfer mechanism 10 and the X / Y two-dimensional transfer platform formed by the above embodiment are used to transfer the carrier 200 carrying the chip 300 as an example to illustrate its usage and its advantage of being suitable for use in a narrow width space. However, it should be noted that the above linear transfer mechanism 10 is not limited to being used for transferring the carrier 200 carrying the chip 300, and it can also be used in other fields that require the transfer of workpieces along a straight line, and is suitable for use in a narrow width space.

[0063] The first lifting assembly 220 in the side lifting mechanism 20 is used to lift the lifting load plate 210, so that the carrier 200 is raised to a position corresponding to the first positioning assembly 330. The specific type of the first lifting assembly 220 is not limited. Specifically, in one example, Fig. 9 As shown, the first lifting assembly 220 includes a base 221, a driving unit 222, a tilting block 223 and a linkage 224, wherein the lifting bearing plate 210 is movably connected to the base 221, and the lifting bearing plate 210 is also connected to the linkage 224. The driving unit 222 is used to drive the tilting block 223 to move, the tilting block 223 drives the linkage 224 to rise, and the linkage 224 drives the lifting bearing plate 210 to rise. After the driving unit 222 drives the tilting block 223 to reset, the lifting bearing plate 210 descends.

[0064] The lifting bearing plate 210 and the base 221 are specifically configured to be relatively slidably connected. In one implementation, Figure 7 and Figure 8As shown, one of the lifting load plate 210 and the base 221 is provided with a linear bearing 225, and the other is provided with a guide rod 211 matched with the linear bearing 225. Specifically, the lower surface of the lifting load plate 210 (i.e., the surface of the lifting load plate 210 facing the base 221) is installed with the guide rod 211, and the top of the base 221 is provided with a linear bearing 225, and the linear bearing 225 is slidably matched with the guide rod 211. Of course, the positions of the guide rod 211 and the linear bearing 225 can be interchanged. In addition, the above-mentioned relative sliding connection can be realized in other ways, such as a guide rail or a slide groove structure. The upper surface of the lifting load plate 210 facing away from the base 221 is a bearing surface 212, which is used to place the carrier 200.

[0065] Taking the motion plane of the first transmission member 110 as a reference, the motion direction of the linkage member 224 is defined as the height direction of the side lifting mechanism 20. Specifically in this embodiment, the height direction of the linkage member 224 is also the vertical direction, and the linkage member 224 drives the lifting and lowering bearing plate 210 to move in the vertical direction. In the height direction, the linkage member 224 needs to have a movement space. It can be understood that the inclined ejector block 223 that drives the linkage member 224 to move also needs a certain movement space, but in practice, the height dimension of the mechanism is limited, and the height space is often limited.

[0066] To solve the above problems, in an embodiment of the present invention, the movement plane of the inclined ejector block 223 and the movement plane of the linkage member 224 are set at an angle to each other. In the specific setting, the movement plane of the inclined ejector block 223 and the movement plane of the linkage member 224 are perpendicular to each other, and the movement direction of the inclined ejector block 223 is set to be perpendicular to the movement direction of the linkage member 224. Specifically, the inclined ejector block 223 moves in the horizontal plane, and the linkage member 224 moves in the vertical plane. When the inclined ejector block 223 moves in the horizontal direction, it pushes the linkage member 224 to move in the vertical direction. The movement space required by the inclined ejector block 223 and the movement space required by the linkage member 224 do not overlap. The driving unit 222 can be set on one side of the inclined ejector block 223 without occupying the height space, thereby reducing the height dimension of the side lifting mechanism 20. After testing, by adopting the above means, the height of the side lifting mechanism 20 can be as low as 30mm, which greatly saves space and is very suitable for application in the case of limiting the height of the mechanism. In other embodiments, the movement plane of the inclined lift block 223 and the movement plane of the linkage member 224 may also be set at an obtuse angle, such as the linkage member 224 moves in a vertical plane and the inclined lift block 223 moves in an upwardly inclined plane.

[0067] like Fig. 9As shown, in order to facilitate the driving of the linkage member 224 to rise, the inclined top block 223 is provided with an inclined surface 2231 that can press the linkage member 224. The angle between the inclined surface 2231 and the moving direction of the inclined top block 223 is specifically an obtuse angle. When the inclined top block 223 moves in the horizontal direction, the inclined surface 2231 acts on the linkage member 224, so that the linkage member 224 continuously climbs along the inclined surface 2231. It can be understood that the inclined surface 2231 can also be provided on the linkage member 224, so that when the inclined top block 223 moves, it first contacts the higher position of the inclined surface 2231, and then drives the linkage member 224 to climb.

[0068] Furthermore, after the lifting and lowering bearing plate 210 is lifted to a predetermined position, it is required to be in a relatively stable state. Fig. 9 As shown, the inclined lift block 223 is further provided with a top surface 2232, which is connected to the top of the inclined surface 2231, and the top surface 2232 is parallel to the movement direction of the inclined lift block 223. The top surface 2232 is also a plane along the horizontal direction. After the lifting and lowering bearing plate 210 rises to the predetermined position, the linkage member 224 just moves to the top surface 2232 and is stably supported on the top surface 2232.

[0069] When the inclined lift block 223 moves to just contact with the linkage member 224, the inclined lift block 223 encounters a large resistance, which may easily cause the linkage member 224 to start up unsteadily. Fig. 9 As shown, the linkage member 224 is connected to the lifting bearing plate 210 through a pivot 226, and the linkage member 224 can rotate with the pivot 226 as an axis, and the surface of the linkage member 224 in contact with the inclined top block 223 is an outer cylindrical surface. Through the above means, when the inclined top block 223 moves to just contact with the linkage member 224, the linkage member 224 rotates at the same time, thereby reducing the starting force when the linkage member 224 rises, so that the rising start of the linkage member 224 is smoother. The linkage member 224 is specifically selected from bearings. The bearings are standard parts and do not require customized processing, and the cost price is relatively low.

[0070] Combination Figures 7 to 9 As shown, the base 221 has a receiving cavity 2211, and the inclined lifting block 223 and the linkage member 224 are both located in the receiving cavity 2211. In this way, the height dimension of the side lifting mechanism 20 is relatively small. It should be noted that the linkage member 224 can be partially / entirely located in the receiving cavity 2211.

[0071] In order to ensure the stability of the lifting load plate 210, a guide rail 230 is further provided in the accommodating cavity 2211, and the inclined lift block 223 or the driving component of the driving unit 222 is slidably connected to the guide rail 230. In this way, when the inclined lift block 223 is driven by the driving unit 222 to move, it moves under the guidance of the guide rail 230, and the inclined lift block 223 moves more accurately and smoothly, thereby ensuring the stability of the lifting load plate 210.

[0072] The type of the driving unit 222 is not limited. Figure 7 and Fig. 9 As shown, in a specific configuration, the driving unit 222 is a cylinder, which is arranged outside the base 221 , and the piston rod of the cylinder extends into the base 221 and is connected to the inclined ejector block 223 .

[0073] Combination Figure 8 and Fig. 9 As shown, when the inclined top block 223 moves horizontally to the left, the linkage member 224 moves upward in the vertical direction. When the inclined top block 223 moves horizontally to the right, the linkage member 224 will move downward in the vertical direction. In order to separate the carrier 200 from the inclined surface 2231 as quickly as possible, in some embodiments, the side lifting mechanism 20 is further provided with a reset member 240. The reset member 240 is arranged between the lifting bearing plate 210 and the base 221, and is configured to provide a driving force for the lifting bearing plate 210 to move in a direction close to the base 221. The type of the reset member 240 is not limited. As an example, the reset member 240 is a tension spring, one end of which hooks the lifting bearing plate 210 and the other end hooks the base 221.

[0074] like Figure 7 As shown, a positioning pin 213 is also provided on the bearing surface 212. The positioning pin 213 is used to cooperate with the carrier 200 to position the carrier 200 so that the carrier 200 is at a predetermined position on the bearing surface 212, thereby ensuring that the carrier 200 is correctly positioned when docking with the first positioning assembly 330. Specifically, the carrier 200 is placed in the positioning space defined by the positioning pin 213.

[0075] like Figure 7 As shown, a vacuum suction port 214 is also provided on the carrying surface 212, and an air suction port 215 is provided on the side of the lifting carrying plate 210, and the air suction port 215 is connected to the vacuum suction port 214. The air suction port 215 is used to connect the vacuum adsorption pipeline, and the carrier 200 is pressed against the carrying surface 212 by vacuum adsorption, so that the carrier 200 is fixed in the above-mentioned predetermined position. Figure 1 , Fig.10 As shown, when the carrier 200 is docked with the first positioning assembly 330, the first positioning assembly 330 fixes the carrier 200 while the side lifting mechanism 20 removes the adsorption of the carrier 200, so that the carrier 200 is always reliably positioned during the transfer process to avoid accidental damage to the chip 300.

[0076] like Figure 7As shown, a groove 216 is provided on the carrying surface 212, and a sensor 250 is provided in the groove 216. The sensor 250 is used to detect whether there is a carrier 200 on the carrying surface 212. After the first positioning assembly 330 fixes the carrier 200, the rotating transfer plate 320 rotates to move the carrier 200 away from the carrying surface 212, and the sensor 250 detects that there is no carrier 200 on the carrying surface 212, then the first transmission member 110 can be immediately retreated, thereby facilitating the realization of automated continuous operation.

[0077] There may be many types of sensors 250, which are not limited in the embodiments of the present invention. For example, the sensor 250 may be a pressure sensor, which can determine whether there is a carrier 200 on the carrying surface 212 by changing the pressure value. For another example, the sensor 250 may be a photoelectric sensor, which uses the blocking or reflection of the light beam by the detected object to connect the circuit by the synchronization circuit, thereby detecting whether there is a carrier 200 on the carrying surface 212.

[0078] The side lifting mechanism 20 in the above embodiment can be used to achieve transmission and workpiece separation. Furthermore, the movement direction of the inclined lifting block 223 of the side lifting mechanism 20 is set to be perpendicular to the movement direction of the linkage member 224, which can reduce the height dimension of the side lifting mechanism 20 and is suitable for use in places with limited height. Although the above embodiment takes the transfer of the carrier 200 carrying the chip 300 as an example to illustrate the working mode of the side lifting mechanism 20, it should be noted that the above side lifting mechanism 20 is not limited to being used for the transmission of the carrier 200 carrying the chip 300.

[0079] refer to Fig.10 and Fig.11 The first positioning assembly 330 is provided on the rotating transfer plate 320 of the rotating transfer mechanism 30, and is used to receive the carrier 200 on the side lifting mechanism 20. The first positioning assembly 330 is used to fix the carrier 200, and its implementation method is not limited.

[0080] As an example, the first positioning assembly 330 includes a first clamping member 331 and a second clamping member 332, wherein a clamping space is formed between the first clamping member 331 and the second clamping member 332. At least one of the first clamping member 331 and the second clamping member 332 is a movable element, so that the two clamping members can be close to or away from each other. The two clamping members can clamp the carrier 200 when they are close to each other, and release the carrier 200 when the two clamping members are away from each other. The power source 333 of the above-mentioned movable element is a cylinder, specifically, the movable element is connected to the piston rod of the cylinder. Of course, the power source 333 is not limited to the cylinder. The first positioning assembly 330 can also be an adsorption mechanism.

[0081] In the specific configuration, both the first clamping member 331 and the second clamping member 332 are movable elements, and the power source 333 is a cylinder, which is specifically a slide cylinder.

[0082] Furthermore, the first clamping member 331 and the second clamping member 332 are arranged at the edge of the rotating transfer plate 320, and the edge of the rotating transfer plate 320 is provided with a notch 321, and the first clamping member 331 and the second clamping member 332 are located on both sides of the notch 321. By means of the above means, the carrier 200 on the lifting and lowering carrier plate 210 of the side lifting mechanism 20 can enter between the first clamping member 331 and the second clamping member 332 from the notch 321, which is beneficial to ensure that the base 221 will not interfere with the rotating transfer plate 320 when the side lifting mechanism 20 moves forward, and on the other hand, it can also reduce the lifting height requirement of the side lifting mechanism 20 to lift the carrier 200, thereby reducing the design difficulty and height size of the side lifting mechanism 20.

[0083] like Fig.10 As shown, the rotating transfer plate 320 has a first end 322 and a second end 323 located on both sides of the rotation axis X thereof, and the first positioning components 330 are respectively disposed on the first end 322 and the second end 323, and the first positioning components 330 on both sides are symmetrically disposed about the rotation axis X. When the rotating transfer plate 320 rotates around the rotation axis X, the first end 322 and the second end 323 can alternately move to the side lifting mechanism 20, thereby continuously transferring the carrier 200 with the chip 300 from the side lifting mechanism 20 to the clamping mechanism 40.

[0084] The rotary transfer mechanism 30 further includes a displacement sensor 340, which is connected to the rotary platform 310 and is located between the side lifting mechanism 20 and the rotary platform 310. The displacement sensor 340 is used to detect the position of the side lifting mechanism 20 so that the first positioning assembly 330 can work immediately.

[0085] Similar to the linear transfer mechanism 10 and the lateral lifting mechanism 20 , the rotary transfer mechanism 30 of the above embodiment is not limited to transferring the carrier 200 carrying the chip 300 .

[0086] like Figure 12 to Figure 14 As shown, the second positioning assembly 420 of the clamping mechanism 40 includes a vacuum suction plate 421, and the vacuum suction plate 421 is provided with a suction surface to position the carrier 200 on the vacuum suction plate 421 by vacuum suction. After the rotary transfer mechanism 30 rotates the carrier 200 to above the vacuum suction plate 421, the second lifting assembly 410 drives the second positioning assembly 420 to rise to support the carrier 200 and adsorb the carrier 200, while the first positioning assembly 330 releases the carrier 200; then the second lifting assembly 410 continues to drive the second positioning assembly 420 to rise, and the carrier 200 rises to make the chip 300 contact with the burn tester above so as to burn the chip 300.

[0087] In order to prevent the chip 300 and the pogo pin (spring contact pin) of the burning tester from being damaged due to uneven crimping, the second positioning assembly 420 further includes a flexible buffer module 422, which is located between the second lifting assembly 410 and the vacuum suction plate 421. The flexible buffer module 422 has a buffering function to ensure parallelism during the crimping test and prevent the pogo pin from being damaged, specifically, to prevent the pogo pin from being broken or deformed.

[0088] A pressure sensor 423 is provided between the flexible buffer module 422 and the vacuum suction plate 421. When the chip 300 contacts the pogo pin of the burning tester, the pressure sensor 423 monitors the current pressure value in real time, and stops the upward movement of the second lifting component 410 when the pressure reaches the test pressure. After the burning is completed, the chip 300 is separated from the burning tester when the second lifting component 410 moves downward, and then the carrier 200 is removed from the second positioning component 420 by the transfer mechanism.

[0089] In order to ensure the crimping accuracy between the chip 300 and the pogo pin of the burning tester, the vacuum suction plate 421 can be connected to the flexible buffer module 422 in a relatively movable manner. In this way, the vacuum suction plate 421 has a floating effect. When the chip 300 contacts the pogo pin of the burning tester, the docking position of the chip 300 and the pogo pin can be fine-tuned in real time, ultimately ensuring the crimping accuracy. In the specific setting, the flexible buffer module 422 is connected to the first adapter plate 424, the first adapter plate 424 is fixedly connected to the first guide member 425, the vacuum suction plate 421 is connected to the second adapter plate 426, the second adapter plate 426 is fixedly connected to the slide rail 427, and the slide rail 427 is slidably connected to the first guide member 425.

[0090] The burning tester is located above the first positioning assembly 330 . When the first positioning assembly 330 lifts the carrier 200 to make the chip 300 contact the pogo pin of the burning tester, the chip 300 may be driven out of position, which may cause the chip 300 to be damaged or lost.

[0091] To solve the above problems, the adsorption surface has a first adsorption area 4211 for adsorbing the chip 300 and a second adsorption area 4212 for adsorbing the carrier 200. The vacuum suction plate 421 is connected with a first vacuum adsorption pipeline 4213 and a second vacuum adsorption pipeline 4214. The first vacuum adsorption pipeline 4213 is connected to the first adsorption area 4211, and the second vacuum adsorption pipeline 4214 is connected to the second adsorption area 4212. That is, the second adsorption area 4212 is used to position the carrier 200; the first adsorption area 4211 is used to position the chip 300 to prevent the chip 300 from moving. At the same time, the first adsorption area 4211 can also be used to perform negative pressure detection on the chip 300 to detect whether the chip 300 package is intact.

[0092] After the carrier 200 is placed on the adsorption surface, the first vacuum adsorption pipeline 4213 adsorbs each chip 300 through the first adsorption area 4211; specifically, the first adsorption area 4211 is connected to the adsorption port at the bottom of the carrier 200, thereby communicating with the positioning cavity of each chip 300 on the carrier 200 to adsorb and position each chip 300. The second vacuum adsorption pipeline 4214 adsorbs the bottom of the carrier 200 through the second adsorption area 4212.

[0093] Furthermore, a sealing ring 4215 is provided at the periphery of the second adsorption area 4212. The sealing ring 4215 surrounds the second adsorption area 4212 to prevent air leakage when the chip 300 is adsorbed, thereby ensuring the adsorption effect of the chip 300.

[0094] A second adsorption area 4212 is disposed on at least one side of the first adsorption area 4211. Fig.14 As shown, in this embodiment, the second adsorption area 4212 is provided on both sides of the first adsorption area 4211, and the second adsorption areas 4212 on both sides are symmetrically arranged with respect to the first adsorption area 4211, so that the carrier 200 is evenly stressed and has good stability. When there are two second adsorption areas 4212, two second vacuum adsorption pipelines 4214 are correspondingly arranged.

[0095] In a specific configuration, the second adsorption area 4212 is a circular hole. The first adsorption area 4211 includes three circular holes arranged in a straight line, but it can be understood that the number is not limited to three.

[0096] like Fig.14 As shown, the adsorption surface is provided with positioning posts 4216 for positioning the carrier 200. Specifically, positioning posts 4216 are provided on both sides of the second adsorption area 4212, and the carrier 200 can be placed between the positioning posts 4216 on both sides. By providing the positioning posts 4216 and the first adsorption area 4211, the carrier 200 is fixed at a predetermined position on the adsorption surface.

[0097] The type of the second lifting assembly 410 is not limited, as long as it can drive the second positioning assembly 420 to rise and fall. In one example, the second lifting assembly 410 includes a servo motor and a linear motion module driven by the servo motor, and the second positioning assembly 420 is connected to the linear motion module.

[0098] It should be noted that the clamping mechanism 40 of the above embodiment can also be used to lift other workpieces, and is not limited to the carrier 200 equipped with the chip 300.

[0099] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0100] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A workpiece conveying system, characterized in that: include: A linear transfer mechanism, used for transporting a carrier capable of carrying a workpiece, the linear transfer mechanism comprising a first transmission member moving along a first direction; A side lifting mechanism, the side lifting mechanism is arranged on the first transmission member, and the side lifting mechanism comprises a lifting bearing plate and a first lifting component driving the lifting bearing plate to lift; A rotary transfer mechanism is arranged at one side of the linear transfer mechanism, the rotary transfer mechanism comprises a rotary platform and a rotary transfer plate driven to rotate by the rotary platform, the rotary transfer plate is provided with a first positioning assembly for receiving a carrier conveyed by the lifting carrier plate, the rotary transfer plate has a first end and a second end located at both sides of its rotation axis, the first end and the second end are respectively provided with the first positioning assembly, the first positioning assemblies on both sides are symmetrically arranged about the rotation axis, when the rotary transfer plate rotates around the rotation axis, the first end and the second end can alternately move to the side lifting mechanism, so as to transfer the carrier from the side lifting mechanism to the clamping mechanism; The clamping mechanism is used for receiving and positioning the carrier output by the rotating transfer plate, and the clamping mechanism includes a second lifting component and a second positioning component driven to rise and fall by the second lifting component.

2. The workpiece conveying system according to claim 1, characterized in that: The workpiece conveying system also includes a moving component, which is arranged on the first transmission member. The moving component includes a second transmission member that can move along a second direction. The second transmission member moves in the same plane as the first transmission member. The second direction is perpendicular to the first direction. The side lifting mechanism is arranged on the second transmission member.

3. The workpiece conveying system according to claim 1, characterized in that: The linear transfer mechanism is a linear motor, the first transmission member includes a mover of the linear motor, the linear transfer mechanism includes a main body and a protective belt, the main body has a slide groove along the first direction, the first transmission member is slidably matched with the slide groove, the protective belt is connected to the first transmission member, and the protective belt surrounds the main body and covers the slide groove.

4. The workpiece conveying system according to claim 1, characterized in that: The first lifting component includes a base, a driving unit, a tilted lift block and a linkage member. The lifting bearing plate is movably connected to the base, and the upper surface of the lifting bearing plate facing away from the base is a bearing surface. The tilted lift block is connected to the driving unit, and the linkage member is connected to the lifting bearing plate. The movement plane of the tilted lift block is set at an angle to the movement plane of the linkage member.

5. The workpiece conveying system according to claim 4, characterized in that: The linkage member is connected to the lifting bearing plate via a pivot, the linkage member can rotate with the pivot as an axis, and the surface of the linkage member in contact with the inclined top block is an outer cylindrical surface.

6. The workpiece conveying system according to claim 4, characterized in that: The inclined lift block is provided with an inclined surface that can press the linkage member, and the inclined lift block is also provided with a top surface, which is connected to the top of the inclined surface and is parallel to the movement direction of the inclined lift block.

7. The workpiece conveying system according to claim 1, characterized in that: The first positioning assembly includes a first clamping member and a second clamping member, a clamping space is formed between the first clamping member and the second clamping member, at least one of the first clamping member and the second clamping member is a movable element, wherein the first clamping member and the second clamping member are arranged on the edge of the rotating transfer plate, and a notch is provided at the edge of the rotating transfer plate, and the first clamping member and the second clamping member are located on both sides of the notch.

8. The workpiece conveying system according to claim 1, characterized in that The second positioning component includes a vacuum suction plate, which is provided with a suction surface, and the suction surface has a first suction area for sucking the workpiece and a second suction area for sucking the carrier. The vacuum suction plate is connected with a first vacuum suction pipeline and a second vacuum suction pipeline, the first vacuum suction pipeline is connected with the first suction area, and the second vacuum suction pipeline is connected with the second suction area.

9. The workpiece conveying system according to claim 8, characterized in that The second positioning assembly also includes a flexible buffer module, and the flexible buffer module is located between the second lifting assembly and the vacuum suction plate.

10. The workpiece conveying system according to claim 9, characterized in that , the vacuum suction plate can be connected to the flexible buffer module in a relatively movable manner.

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