Controllable constant force carrier system for ic test equipment

Abstract

The utility model discloses a controllable constant force carrying system for IC test equipment, including frame, suction nozzle subassembly, set in the frame and drive suction nozzle subassembly up and down movement Z axial drive assembly and drive suction nozzle subassembly rotation R axial drive mechanism, suction nozzle subassembly includes setting on the frame suction nozzle seat, setting on the support rod of suction nozzle seat, be equipped with the sliding block on the support rod, and the bottom of support rod is equipped with IC suction nozzle, Z axial drive assembly is connected with the sliding block for drive sliding block up and down movement, R axial drive mechanism sets up on suction nozzle seat for drive support rod R axial rotation, the utility model discloses Z axial drive assembly, R axial drive mechanism and suction nozzle subassembly all concentrate on the frame, and the layout is reasonable, and the compact structure can satisfy the design requirement of equipment miniaturization.

Description

Technical Field

[0001] This utility model belongs to the technical field of IC testing equipment, and specifically relates to a controllable constant force transport system for IC testing equipment. Background Technology

[0002] The IC Handler Transport System is one of the core modules in integrated circuit (IC) test equipment. It is mainly used for automated handling, positioning, and loading / unloading of chips to ensure that the chips can make accurate and efficient electrical contact with the tester to complete various tests.

[0003] IC test equipment transport systems typically consist of a nozzle assembly, a Z-axis drive assembly, and an R-axis drive assembly. The nozzle assembly is used to pick up and grip IC chips, the Z-axis drive assembly controls the vertical movement of the nozzle assembly, and the R-axis drive assembly controls the rotation of the nozzle assembly. Existing IC test equipment transport systems require significant installation space for their Z-axis and R-axis drive assemblies, resulting in bulky equipment that is not conducive to miniaturization design requirements; furthermore, they can only control a single nozzle, limiting testing efficiency.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide a controllable constant force transport system for IC testing equipment, thereby overcoming the defects in the prior art.

[0006] To achieve the above objectives, this utility model provides a controllable constant force transport system for IC testing equipment, including a frame, a nozzle assembly, a Z-axis drive assembly mounted on the frame to drive the nozzle assembly to move up and down, and an R-axis drive mechanism to drive the nozzle assembly to rotate. The nozzle assembly includes a nozzle seat mounted on the frame and a support rod mounted on the nozzle seat. A slider is provided on the support rod, and an IC nozzle is provided at the bottom of the support rod. The Z-axis drive assembly is connected to the slider and is used to drive the slider to move up and down. The R-axis drive mechanism is mounted on the nozzle seat and is used to drive the support rod to rotate in the R-axis direction.

[0007] Furthermore, as a preferred embodiment, the Z-axis drive assembly includes a Z-axis motor mounted on the frame and a belt connected to the Z-axis motor, with the slider connected to the belt.

[0008] Furthermore, preferably, the belt is provided in two sets, and the Z-axis motor controls both sets of belts simultaneously.

[0009] Furthermore, as a preferred embodiment, the Z-axis drive assembly includes a drive cylinder and a Z-axis guide rail mounted on the frame, the slider is mounted on the Z-axis guide rail, and the drive cylinder is used to drive the slider to slide on the Z-axis guide rail.

[0010] Furthermore, as a preferred embodiment, the nozzle seat is provided with two sets of support rods, and a slider is provided on the two sets of support rods.

[0011] Furthermore, as a preferred embodiment, the slider is provided with a limiting mechanism, which is used to limit the slider when it moves above the nozzle seat.

[0012] Furthermore, as a preferred embodiment, the limiting mechanism employs an adaptive spring mechanism.

[0013] Furthermore, as a preferred embodiment, the frame is also equipped with a camera assembly.

[0014] Furthermore, as a preferred embodiment, the camera assembly includes a camera slider mounted on a frame, an industrial camera mounted on the camera slider, and a camera drive mechanism mounted on the frame to drive the camera slider to move up and down.

[0015] Furthermore, as a preferred embodiment, the camera drive mechanism includes a camera guide rail mounted on the frame, a camera drive motor, and a camera belt connected to the camera drive motor; the camera slider is mounted on the camera guide rail and connected to the camera belt.

[0016] Compared with the prior art, the present invention has the following beneficial effects: This utility model integrates the Z-axis drive assembly, R-axis drive mechanism and nozzle assembly on the frame, with a reasonable layout and compact structure, which can meet the design requirements of equipment miniaturization. This invention sets the R-axis drive mechanism on the nozzle seat, and the nozzle is set on the nozzle seat by a support rod. Multiple support rods can be set on the nozzle seat, and multiple support rods can be controlled by one R-axis drive mechanism, which can improve testing efficiency. In one embodiment of this utility model, two sets of belt drives are controlled by a Z-axis motor to move the slider, thereby controlling the up and down position of the suction nozzle. The structure is compact and the transmission is smooth, which can reduce the vibration generated by the motor and help the suction nozzle work smoothly. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the controllable constant force transport system for IC testing equipment in Embodiment 1 of this utility model; Figure 2This is another structural schematic diagram of the controllable constant force transport system for IC testing equipment in Embodiment 1 of this utility model; Figure 3 For the present utility model Figure 1 Enlarged view of point A in the middle; Figure 4 For the present utility model Figure 2 Enlarged view of point B in the middle; Figure 5 This is a schematic diagram of the controllable constant force transport system for IC testing equipment in Embodiment 2 of this utility model; Figure 6 This is another structural schematic diagram of the controllable constant force carrier system for IC testing equipment in Embodiment 2 of this utility model; Figure 7 For the present utility model Figure 6 Enlarged view of point C in the middle; Reference numerals: 1-Frame, 2-Nozzle assembly, 21-Nozzle seat, 22-Support rod, 23-Slider, 24-IC nozzle, 25-Limiting mechanism, 3-Z-axis drive assembly, 31-Z-axis motor, 32-Belt, 33-Drive cylinder, 34-Z-axis guide rail, 4-R-axis drive mechanism, 5-Camera assembly, 51-Camera slider, 52-Industrial camera, 53-Camera drive mechanism, 531-Camera guide rail, 532-Camera drive motor, 533-Camera belt. Detailed Implementation

[0018] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0019] The following provides a brief overview of one or more aspects to offer a basic understanding of them. This overview is not an exhaustive summary of all conceived aspects, nor is it intended to identify key or decisive elements of all aspects, nor to define the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form to prepare for the more detailed descriptions that follow.

[0020] Example 1: like Figures 1-4As shown, a controllable constant force transport system for IC testing equipment includes a frame 1, a nozzle assembly 2, a Z-axis drive assembly 3 mounted on the frame 1 to drive the nozzle assembly 2 to move up and down, and an R-axis drive mechanism 4 to drive the nozzle assembly 2 to rotate. The nozzle assembly 2 includes a nozzle seat 21 mounted on the frame 1 and a support rod 22 mounted on the nozzle seat 21. A slider 23 is mounted on the support rod 22, and an IC nozzle 24 is mounted at the bottom of the support rod 22. The Z-axis drive assembly 3 is connected to the slider 23 and is used to drive the slider 23 to move up and down. The R-axis drive mechanism 4 is mounted on the nozzle seat 21 and is used to drive the support rod 22 to rotate in the R-axis direction.

[0021] In this embodiment, as a specific solution, the Z-axis drive assembly 3 includes a Z-axis motor 31 mounted on the frame 1 and a belt 32 connected to the Z-axis motor 31, and the slider 23 is connected to the belt 32.

[0022] In this embodiment, as a more specific solution, the belt 32 is provided in two sets, and the two sets of belts 32 are respectively located on both sides of the Z-axis motor 31. The slider 23 is connected to both sets of belts 32. The Z-axis motor 31 simultaneously controls the transmission of the two sets of belts 32, thereby controlling the movement of the slider 23 to adjust the up and down position of the IC nozzle 24.

[0023] In this embodiment, as a more specific solution, the Z-axis motor 31 has two modes: position mode and torque mode. The position mode is responsible for controlling the up and down movement of the IC nozzle 24, and the torque mode controls the constant force applied to the IC nozzle 24.

[0024] In this embodiment, as a more specific solution, the R-axis drive mechanism 4 adopts an R-axis drive motor. By setting a linkage gear inside the nozzle seat 21, the R-axis drive motor drives the support rod 22 to rotate through the linkage gear. The linkage gear is not shown in the figure. The linkage gear belongs to the prior art and will not be described in detail here.

[0025] In this embodiment, as a specific solution, the frame 1 is also provided with a camera assembly 5.

[0026] In this embodiment, as a more specific solution, the camera assembly 5 includes a camera slider 51 disposed on the frame 1, an industrial camera 52 disposed on the camera slider 51, and a camera drive mechanism 53 disposed on the frame 1 to drive the camera slider 51 to move up and down.

[0027] In this embodiment, as a more specific solution, the camera drive mechanism 53 includes a camera guide rail 531 mounted on the frame 1, a camera drive motor 532, and a camera belt 533 connected to the camera drive motor 532. The camera slider 51 is mounted on the camera guide rail 531 and connected to the camera belt 533. During operation, the camera drive motor 532 controls the transmission of the camera belt 533, thereby controlling the movement of the camera slider 51 on the camera guide rail 531 to achieve control of the vertical position of the industrial camera 52. The industrial camera can play a role in auxiliary positioning and auxiliary detection when the IC nozzle 24 is working.

[0028] In this embodiment, as a more specific solution, a miniature rotary motor can also be installed on the support rod 22 to control the rotation of the support rod 22 in the R-axis direction.

[0029] The working principle of this utility model is as follows: During operation, the Z-axis motor 31 drives the belt 32 for transmission, which in turn drives the slider 23 to move up and down, thereby causing the IC nozzle 24 to move up and down to transport the IC chip. At the same time, the R-axis drive mechanism 4 controls the support rod 22 to rotate to meet the rotation requirements of the IC nozzle 24 in the R-axis.

[0030] Example 2: like Figures 5-7 As shown, unlike Embodiment 1, the Z-axis drive assembly 3 includes a drive cylinder 33 and a Z-axis guide rail 34 mounted on the frame 1. The slider 23 is mounted on the Z-axis guide rail 34, and the drive cylinder 33 is used to drive the slider 23 to slide on the Z-axis guide rail 34.

[0031] In this embodiment, as a more specific solution, the nozzle holder 21 is provided with two sets of support rods 22, and the two sets of support rods 22 are provided with a slider 23. The two sets of support rods 22 are controlled by the slider 23 moving on the Z-axis guide rail 34, so that the two sets of IC nozzles 24 can be controlled to work at one time.

[0032] In this embodiment, as a more specific solution, the slider 23 is provided with a limiting mechanism 25, which is used to limit the slider 23 when it moves above the nozzle seat 21.

[0033] In this embodiment, as a more specific solution, the limiting mechanism 25 adopts an adaptive spring mechanism.

[0034] In this embodiment, as a specific solution, the R-axis drive mechanism 4 adopts an R-axis drive motor. By setting a linkage gear inside the nozzle seat 21, the linkage gear cooperates with two sets of support rods 22 respectively (not shown in the figure, the linkage gear is the prior art and will not be described in detail). The R-axis drive motor drives the support rods 22 to rotate through the linkage gear, thereby driving the IC nozzle 24 to rotate.

[0035] In this embodiment, as a more specific solution, a miniature rotary motor can also be installed on the support rod 22 to control the rotation of the support rod 22 in the R-axis direction.

[0036] Unlike Embodiment 1, the slider 23 is driven by the drive cylinder 33 to move up and down along the Z-axis guide rail 34, thereby causing the IC nozzle 24 to move up and down to transport the IC chip. At the same time, the support rod 22 is controlled to rotate by the R-axis drive mechanism 4 to meet the rotation requirements of the IC nozzle 24 in the R-axis.

[0037] This utility model has the following advantages: 1. This utility model integrates the Z-axis drive assembly, R-axis drive mechanism and nozzle assembly on the frame, which is reasonable in layout and compact in structure, and can meet the design requirements of equipment miniaturization. 2. In this utility model, the R-axis drive mechanism is set on the nozzle seat, and the nozzle is set on the nozzle seat through the support rod. Multiple support rods can be set on the nozzle seat, and multiple support rods can be controlled by one R-axis drive mechanism, which can improve the testing efficiency. 3. In Embodiment 1 of this utility model, the slider is moved by two sets of belt drives controlled by the Z-axis motor, thereby realizing the control of the up and down position of the suction nozzle. The structure is compact and the transmission is smooth, which can reduce the vibration generated by the motor and help the suction nozzle work smoothly.

[0038] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A controllable constant force transport system for IC testing equipment, comprising a frame, a nozzle assembly, a Z-axis drive assembly mounted on the frame for driving the nozzle assembly to move up and down, and an R-axis drive mechanism for driving the nozzle assembly to rotate, characterized in that: The nozzle assembly includes a nozzle seat mounted on a frame and a support rod mounted on the nozzle seat. The support rod has a slider and an IC nozzle at its bottom. The Z-axis drive assembly is connected to the slider and is used to drive the slider to move up and down. The R-axis drive mechanism is mounted on the nozzle seat and is used to drive the support rod to rotate in the R-axis direction.

2. The controllable constant force transport system for IC testing equipment according to claim 1, characterized in that: The Z-axis drive assembly includes a Z-axis motor mounted on the frame and a belt connected to the Z-axis motor, with the slider connected to the belt.

3. The controllable constant force transport system for IC testing equipment according to claim 2, characterized in that: The belt is provided in two sets, and the Z-axis motor controls both sets of belts simultaneously.

4. The controllable constant force transport system for IC testing equipment according to claim 1, characterized in that: The Z-axis drive assembly includes a drive cylinder and a Z-axis guide rail mounted on the frame. The slider is mounted on the Z-axis guide rail, and the drive cylinder is used to drive the slider to slide on the Z-axis guide rail.

5. The controllable constant force transport system for IC testing equipment according to claim 1, characterized in that: The nozzle holder is provided with two sets of support rods, and a slider is provided on the two sets of support rods.

6. The controllable constant force transport system for IC testing equipment according to claim 4, characterized in that: The slider is equipped with a limiting mechanism, which is used to limit the slider when it moves above the nozzle seat.

7. The controllable constant force transport system for IC testing equipment according to claim 6, characterized in that: The limiting mechanism adopts an adaptive spring mechanism.

8. The controllable constant force transport system for IC testing equipment according to claim 1, characterized in that: The frame is also equipped with camera components.

9. The controllable constant force transport system for IC testing equipment according to claim 8, characterized in that: The camera assembly includes a camera slider mounted on a frame, an industrial camera mounted on the camera slider, and a camera drive mechanism mounted on the frame that drives the camera slider to move up and down.

10. The controllable constant force transport system for IC testing equipment according to claim 9, characterized in that: The camera drive mechanism includes a camera guide rail mounted on the frame, a camera drive motor, and a camera belt connected to the camera drive motor. The camera slider is mounted on the camera guide rail and connected to the camera belt.

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