Method for dynamically adjusting pressure uniformity and test sorting machine

Abstract

The present invention discloses a method for dynamically adjusting pressure uniformity and a test sorting machine, which belongs to the technical field of test sorting machines. The method for dynamically adjusting pressure uniformity includes a driving source moving a test head with an upper jig downward, the standard plane of the upper jig abuts against the upper surface of the pressure sensor, and the pressure display displays the value of each pressure sensor in real time; when the square protrusion of the upper jig cannot be smoothly and unobstructedly inserted into the square groove of the lower jig, the translational freedom of the test support component relative to the test head in the XY plane is adjusted; when the pressure values ​​of no less than 3 pressure sensors exceed the set error range, the rotational freedom of the test support component relative to the test head in the X direction or Y direction is adjusted; until the square protrusion is smoothly and unobstructedly inserted into the square groove, and the pressure values ​​of the pressure sensors are all within the set error range, the dynamic adjustment is completed. The present invention dynamically and visually adjusts the test pressure, simplifies the debugging process, and reduces labor costs.

Description

Technical Field

[0001] The present invention relates to the technical field of test sorting machines, and in particular to a method for dynamically adjusting pressure uniformity and a test sorting machine. Background Art

[0002] The test head and test support components are key functional modules in the test sorting machine. The accuracy of their debugging will greatly affect the test yield of the chip. Therefore, the accuracy debugging of this part is particularly important. Therefore, a fast, convenient, and quantifiable debugging solution is crucial for mass production models. The existing technology for the accuracy debugging of the test station of the test sorting machine has the following problems:

[0003] 1. The test sorting machine has many test stations, and precision debugging takes a long time;

[0004] 2. The tightening degree of screws / jackscrews during the debugging process is uncontrollable, the debugging standard is difficult to quantify, and the degree of debugging varies from person to person;

[0005] 3. The debugging results cannot be checked intuitively and effectively during the debugging process.

[0006] Therefore, it is urgent to provide a method for dynamically adjusting pressure uniformity and a test sorting machine to solve the above problems. Summary of the Invention

[0007] The purpose of the present invention is to provide a method for dynamically adjusting pressure uniformity and a test sorting machine, which can dynamically and visually adjust the test pressure, simplify the debugging process and reduce labor costs.

[0008] To achieve the above objectives, the following technical solutions are provided:

[0009] The method for dynamically adjusting pressure uniformity comprises the following steps:

[0010] An upper fixture is installed on the test head, and a lower fixture is installed on the test support component, wherein the lower fixture is provided with no less than three pressure sensors;

[0011] A driving source moves the test head with the upper fixture downward, so that the standard plane of the upper fixture abuts against the upper surfaces of no less than three pressure sensors, and a pressure display displays the value of each pressure sensor in real time;

[0012] When the square protrusion of the upper jig cannot be smoothly inserted into the square groove of the lower jig without blocking, adjusting the translational freedom of the test support component relative to the test head in the XY plane with the test head as a reference;

[0013] When the pressure values ​​of at least three of the pressure sensors exceed a set error range, adjusting the rotational freedom of the test support component relative to the test head in the X direction or the Y direction with respect to the test head as a reference;

[0014] The dynamic adjustment is completed until the square protrusion is smoothly inserted into the square groove without any jamming, and the pressure values ​​of no less than three pressure sensors are within the set error range.

[0015] As an alternative to the method of dynamically adjusting the pressure uniformity, the test support component is moved translationally relative to the test head in the XY plane by adjusting an adjusting screw of the test support component.

[0016] As an alternative to the method of dynamically adjusting pressure uniformity, the test support component is rotated relative to the test head in the X direction or the Y direction by adjusting the adjusting screw of the test support component.

[0017] As an optional method for dynamically adjusting pressure uniformity, if during the debugging process, the square protrusion cannot be smoothly and smoothly inserted into the square groove, and the pressure values ​​of no less than 3 pressure sensors always exceed the set error range, then the accuracy of the workpiece and the assembly debugging accuracy are checked.

[0018] As an optional solution for the method of dynamically adjusting pressure uniformity, the pressure sensor is electrically connected to a host computer, and the pressure display is communicatively connected to the host computer using RS485 or RS232 communication protocol.

[0019] A test sorting machine, wherein the test sorting machine adopts the method of dynamically adjusting pressure uniformity as described in any of the above items to adjust the pressure of the test head on the test support component; the test sorting machine includes a test head, a test support component, a pressure sensor and a pressure display, a lower jig is provided on the test support component, no less than 3 pressure sensors are provided on the lower jig, and a square groove is provided on the lower jig; the test head is provided with an upper jig, and the upper jig is provided with a square protrusion.

[0020] As an optional solution for the test sorting machine, no less than three pressure sensors have the same height relative to the lower fixture.

[0021] As an optional solution for the test sorting machine, the test support component is provided with a waist-shaped hole, and the adjusting screw passes through the waist-shaped hole to be connected to the base.

[0022] As an optional solution for the test sorting machine, a threaded hole is provided on the test support component, an adjusting screw is connected to the threaded hole, and one end of the adjusting screw rests on the base.

[0023] As an optional solution for the test sorting machine, a plurality of waist-shaped holes and a plurality of threaded holes are provided.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The method for dynamically adjusting pressure uniformity provided by the present invention comprises the following steps: installing an upper jig on a test head, installing a lower jig on a test support component, and providing no less than three pressure sensors on the lower jig; a driving source moves the test head with the upper jig downward, and the standard plane of the upper jig abuts against the upper surfaces of no less than three pressure sensors, and a pressure display displays the values ​​of each pressure sensor in real time; when the square protrusion of the upper jig cannot be smoothly and without jamming inserted into the square groove of the lower jig, the translational freedom of the test support component relative to the test head in the XY plane is adjusted with the test head as a reference; when the pressure values ​​of no less than three pressure sensors exceed a set error range, the rotational freedom of the test support component relative to the test head in the X direction or Y direction is adjusted with the test head as a reference; until the square protrusion is smoothly and without jamming inserted into the square groove, and the pressure values ​​of no less than three pressure sensors are all within the set error range, the dynamic adjustment is completed. Since three points determine a plane, in order to verify whether the interface planes of the two modules are parallel, targeted debugging can be carried out through the digital pressure value of the pressure sensor, and the size of the screw adjustment amount / rotation angle can be adjusted in real time according to the change of the pressure value displayed on the pressure display. That is, effective adjustment can be carried out through the quantitative method of pressure indicators, which saves debugging time and labor costs to a certain extent.

[0026] The test sorting machine provided by the present invention realizes dynamic visual adjustment of test pressure by adding upper fixtures, lower fixtures, pressure sensors and pressure displays. The operation process is simple and convenient, which improves debugging efficiency, avoids the influence of uneven pressure debugging caused by different torques of manually locking screws, simplifies the debugging process and reduces labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in describing the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without any creative work.

[0028] Figure 1 This is a structural diagram of an upper jig, a lower jig, and a pressure sensor installed in a test and sorting machine according to an embodiment of the present invention;

[0029] Figure 2 Schematic diagram of the structure of the lower fixture in an embodiment of the present invention;

[0030] Figure 3 Schematic diagram of the structure of the upper fixture in an embodiment of the present invention.

[0031] Reference numerals:

[0032] 1. Test head; 2. Test support component; 3. Upper fixture; 31. Square protrusion; 32. Standard plane; 4. Lower fixture; 41. Square groove; 5. Pressure sensor; 6. Base;

[0033] 21. Waist-shaped hole; 22. Threaded hole. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0035] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0036] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0037] In the description of the present invention, it should be noted that the terms "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0038] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0039] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0040] In order to dynamically and visually adjust the test pressure, simplify the debugging process and reduce labor costs, this embodiment provides a method for dynamically adjusting pressure uniformity and a test sorting machine. Figures 1 to 3 The specific contents of this embodiment are described in detail.

[0041] In this embodiment, the method for dynamically adjusting pressure uniformity includes the following steps: installing an upper jig 3 on the test head 1, installing a lower jig 4 on the test support component 2, and providing no less than three pressure sensors 5 on the lower jig 4; a driving source moves the test head 1 with the upper jig 3 downward, the standard plane 32 of the upper jig 3 abuts against the upper surfaces of no less than three pressure sensors 5, and the pressure display displays the value of each pressure sensor 5 in real time; when the square protrusion 31 of the upper jig 3 cannot be smoothly and without jamming inserted into the square groove 41 of the lower jig 4, the translational degree of freedom of the test support component 2 relative to the test head 1 in the XY plane is adjusted with the test head 1 as a reference; when the pressure values ​​of no less than three pressure sensors 5 exceed the set error range, the rotational degree of freedom of the test support component 2 relative to the test head 1 in the X direction or Y direction is adjusted with the test head 1 as a reference; until the square protrusion 31 is smoothly and without jamming inserted into the square groove 41, and the pressure values ​​of no less than three pressure sensors 5 are all within the set error range, the dynamic adjustment is completed.

[0042] In short, the method for dynamically adjusting pressure uniformity provided by the present invention is as follows: an upper jig 3 is installed on a test head 1, a lower jig 4 is installed on a test support component 2, and no less than three pressure sensors 5 are provided on the lower jig 4; a driving source moves the test head 1 with the upper jig 3 downward, and the standard plane 32 of the upper jig 3 abuts against the upper surfaces of no less than three pressure sensors 5, and a pressure display displays the values ​​of each pressure sensor 5 in real time; when the square protrusion 31 of the upper jig 3 cannot be smoothly and without jamming inserted into the square groove 41 of the lower jig 4, the translational freedom of the test support component 2 relative to the test head 1 in the XY plane is adjusted with the test head 1 as a reference; when the pressure values ​​of no less than three pressure sensors 5 exceed the set error range, the rotational freedom of the test support component 2 relative to the test head 1 in the X direction or Y direction is adjusted with the test head 1 as a reference; until the square protrusion 31 is smoothly and without jamming inserted into the square groove 41, and the pressure values ​​of no less than three pressure sensors 5 are all within the set error range, the dynamic adjustment is completed. Since three points that are not located on the same straight line determine a plane, in order to verify whether the interface planes of the two modules are parallel, targeted debugging can be carried out through the digital pressure value of the pressure sensor 5, and the size of the screw adjustment amount / rotation angle can be adjusted in real time according to the change of the pressure value displayed on the pressure display, that is, effective adjustment can be carried out through the quantitative method of pressure indicators, which saves debugging time and labor costs to a certain extent.

[0043] For example, by adjusting the adjusting screw of the test support component 2, the test support component 2 can be moved horizontally in the XY plane relative to the test head 1, and by adjusting the adjusting screw of the test support component 2, the test support component 2 can be rotated in the X direction or Y direction relative to the test head 1. Since the process of adjusting the screw or adjusting the screw requires joint adjustment, that is, it is impossible to adjust the state of the adjusting screw by loosening the adjusting screw after adjusting one, the adjustment method can realize the function of joint adjustment of the adjusting screw and the adjusting screw. At the same time, since it has communication with the host computer and is displayed on the software UI interface, the adjustment result can be observed in real time, that is, the adjustment result has a dynamic and visible state, and the specific position can be adjusted in a targeted manner. Therefore, it has the beneficial effects of saving debugging time, effectively reducing the debugging labor cost, shortening the debugging time of the whole machine, and promoting the standardization of the debugging process of standard equipment in the debugging stage.

[0044] For example, if during the debugging process, the square protrusion 31 cannot be smoothly inserted into the square groove 41 without jamming, and the pressure values ​​of no less than three pressure sensors 5 always exceed the set error range, the accuracy of the workpiece and the assembly debugging accuracy are checked.

[0045] The pressure sensor 5 is electrically connected to the host computer, and the pressure display is connected to the host computer via RS485 or RS232 communication protocol.

[0046] This embodiment also provides a test sorting machine, which uses the above-mentioned method of dynamically adjusting pressure uniformity to adjust the pressure of the test head 1 on the test support component 2; the test sorting machine includes a test head 1, a test support component 2, a pressure sensor 5 and a pressure display, a lower jig 4 is provided on the test support component 2, no less than 3 pressure sensors 5 are provided on the lower jig 4, and a square groove 41 is provided on the lower jig 4; the test head 1 is provided with an upper jig 3, and the upper jig 3 is provided with a square protrusion 31. Among them, no less than 3 pressure sensors 5 have the same height relative to the lower jig 4. A waist-shaped hole 21 is provided on the test support component 2, and the adjusting screw passes through the waist-shaped hole 21 and is connected to the base 6. A threaded hole 22 is provided on the test support component 2, and the adjusting top screw is connected to the threaded hole 22, and one end of the adjusting top screw rests on the base 6.

[0047] Furthermore, a plurality of waist-shaped holes 21 and threaded holes 22 are provided. By increasing the number of waist-shaped holes 21 and threaded holes 22, the translational freedom of the test support component 2 relative to the test head 1 in the XY plane and the rotational freedom in the X direction or the Y direction are increased.

[0048] Note that the above are only preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A method for dynamically adjusting pressure uniformity, characterized in that: The steps include: An upper jig (3) is installed on the test head (1), and a lower jig (4) is installed on the test support component (2), wherein the lower jig (4) is provided with no less than three pressure sensors (5); A driving source moves the test head (1) with the upper fixture (3) downward, the standard plane (32) of the upper fixture (3) abuts against the upper surfaces of no less than three pressure sensors (5), and a pressure display displays the value of each pressure sensor (5) in real time; When the square protrusion (31) of the upper jig (3) cannot be smoothly inserted into the square groove (41) of the lower jig (4) without blocking, the translational freedom of the test support component (2) relative to the test head (1) in the XY plane is adjusted with the test head (1) as a reference; When the pressure values ​​of not less than three of the pressure sensors (5) exceed a set error range, the rotational freedom of the test support component (2) relative to the test head (1) in the X direction or the Y direction is adjusted with the test head (1) as a reference; The dynamic adjustment is completed until the square protrusion (31) is smoothly inserted into the square groove (41) without any obstruction, and the pressure values ​​of no less than three pressure sensors (5) are within the set error range.

2. The method for dynamically adjusting pressure uniformity according to claim 1, characterized in that: By adjusting the adjusting screw of the test support component (2), the test support component (2) is moved horizontally in the XY plane relative to the test head (1).

3. The method for dynamically adjusting pressure uniformity according to claim 1, characterized in that: By adjusting the adjusting screw of the test support component (2), the test support component (2) can be rotated relative to the test head (1) in the X direction or the Y direction.

4. The method for dynamically adjusting pressure uniformity according to claim 1, characterized in that: If during the debugging process, the square protrusion (31) cannot be smoothly inserted into the square groove (41) without blocking, and the pressure values ​​of no less than three of the pressure sensors (5) always exceed the set error range, then the accuracy of the processed parts and the assembly debugging accuracy are checked.

5. The method for dynamically adjusting pressure uniformity according to claim 1, characterized in that: The pressure sensor (5) is electrically connected to a host computer, and the pressure display is communicatively connected to the host computer using an RS485 or RS232 communication protocol.

6. Test sorting machine, characterized in that, The test sorting machine adopts the method of dynamically adjusting pressure uniformity as described in any one of claims 1 to 5 to adjust the pressure of the test head (1) on the test support component (2); the test sorting machine comprises a test head (1), a test support component (2), a pressure sensor (5) and a pressure display, a lower jig (4) is provided on the test support component (2), no less than 3 pressure sensors (5) are provided on the lower jig (4), and a square groove (41) is provided on the lower jig (4); the test head (1) is provided with an upper jig (3), and the upper jig (3) is provided with a square protrusion (31).

7. The test handler according to claim 6, characterized in that: No less than three pressure sensors (5) have the same height relative to the lower fixture (4).

8. The test handler according to claim 7, characterized in that: The test support component (2) is provided with a waist-shaped hole (21), and the adjusting screw passes through the waist-shaped hole (21) and is connected to the base (6).

9. The test handler according to claim 8, characterized in that: A threaded hole (22) is provided on the test support component (2), an adjusting top screw is connected to the threaded hole (22), and one end of the adjusting top screw abuts against the base (6).

10. The test handler according to claim 9, characterized in that: A plurality of waist-shaped holes (21) and a plurality of threaded holes (22) are provided.

Images