Sensing quantity test fixture applied to three-axis visual motion control system

Abstract

The utility model discloses a sensing value testing jig applied to a three-axis visual motion control system. The sensing value testing jig comprises a mother jig with a magnetic attraction piece, a son jig capable of being attracted by the magnetic attraction piece and a testing probe. The female jig is designed to be of a cavity structure, and the magnetic attraction piece is arranged at the bottom of the cavity structure. The sub-jig is designed to be of a protruding block structure capable of being attracted by the magnetic attraction piece, the protruding block structure is embedded into the cavity structure, and the front end face of the protruding block structure is attracted to the magnetic attraction piece of the cavity structure. The riveting columns of the mother jig are embedded into the riveting holes of the son jig, and assembling of the son jig and the mother jig is completed; the test probe is assembled in the vertical concave cavity on the sub-jig base structure; the female jig is assembled on the three-axis visual motion control system through a bolt; and the high-precision and short-time operation test of the test probe is realized through the three-axis visual motion control system table. The device has the advantages of being convenient to use, easy to operate and the like, can be suitable for continuous updating and upgrading of samples, batches and products, meets the requirement of automatic production, and is lower in cost compared with a flying probe testing machine.

Description

Technical Field

[0001] The utility model belongs to the technical field of module power supply testing, in particular to a sensor quantity testing fixture applied to a three-axis visual motion control system. Background Art

[0002] With the development of the high power density DC / DC module power supply market, planar transformer technology has been widely used, and inductance testing is increasingly pursuing accuracy and efficiency. The current inductance test is carried out through inductance testers and flying probe test equipment. The inductance tester test is a manual test; the manual test efficiency is slow, and the test point alignment is low; at the same time, inaccurate manual puncture leads to false touches, which will cause device damage. The cost of using flying probe test equipment is high, and a single inductance test will cause a waste of the flying probe test machine function. In addition, the high-density device layout makes the product test pad size tend to 0201, and the current domestic flying probe test machine only meets the test of 0402. Therefore, it is necessary to develop an efficient, low-cost, and module power supply inductance test method suitable for 0201 pad size. Utility Model Content

[0003] The purpose of the utility model is to provide a sensor measurement test fixture to address the problems existing in the above-mentioned prior art, which can achieve high-precision and high-efficiency sensor measurement testing by being integrated into a three-axis visual motion control system.

[0004] The technical solution to achieve the purpose of the utility model is as follows: on the one hand, a sensitivity test fixture applied to a three-axis visual motion control system is provided, the sensitivity test fixture comprising a mother fixture with a magnetic suction part, a sub-fixture that can be adsorbed by the magnetic suction part, and a test probe for performing a sensitivity test; the mother fixture is mounted on the three-axis visual motion control system, the sub-fixture is mounted on the mother fixture, and the test probe is mounted on the sub-fixture.

[0005] Furthermore, the mother fixture and the child fixture are embedded in each other.

[0006] Furthermore, the mother fixture is a cavity structure, and a magnetic attraction part is arranged inside the cavity structure; the sub-fixture is a convex block structure that can be adsorbed by the magnetic attraction part; when the mother fixture and the sub-fixture are assembled, the convex block structure is embedded in the cavity structure.

[0007] Furthermore, the mother fixture is assembled and limited with the three-axis visual motion control system and the sub-fixture respectively through riveting components.

[0008] Furthermore, the sub-jig is provided with a handle that can be pulled out for disassembly of the sub-jig.

[0009] Furthermore, the sub-jig is provided with a base for assembling the test probe.

[0010] Furthermore, the base is provided with a vertical cavity structure for assembling the test probe, the cross-section of the cavity structure is a connected circular structure and a rectangular structure, and the circular structure is located at one end of the rectangular structure; the position of the cavity structure is adjusted according to the position of the product sensitivity test point.

[0011] Furthermore, the test probe includes a probe body and a limiting structure; the probe body is an elastic probe structure, including a probe barrel, an elastic device installed in the probe barrel, and a needle connected to the elastic device for realizing sensitivity testing; the limiting structure is used to limit the test probe.

[0012] Furthermore, the probe body is assembled in a concave cavity with a circular cross-section to achieve movement in the Z-axis direction and limit the X and Y directions, wherein the Z-axis direction is the vertical direction; the limiting structure is oriented toward and embedded in the concave cavity with a rectangular cross-section to achieve limiting the clockwise and counterclockwise rotation directions of the test probe.

[0013] On the other hand, a testing device is provided, which includes the sensory measurement test fixture mounted on a three-axis visual motion control system and a sensory measurement instrument integrated on the three-axis visual motion control system.

[0014] Compared with the prior art, the utility model has the following significant advantages:

[0015] (1) The inductance test fixture adopts magnetic suction mother-child assembly, which makes replacement easier and faster.

[0016] (2) By integrating a high-precision inductance tester and a precision test probe, it is possible to test small pads and lower inductance.

[0017] (3) The cost of integrated equipment is lower than that of electrical test flying probe equipment.

[0018] (4) The three-axis visual motion control system can realize high-precision and high-efficiency sensitivity testing of the test probe.

[0019] (5) It can flexibly respond to the testing needs of continuous updates and upgrades of samples, batches and products, and can meet the needs of automated production.

[0020] The utility model is described in further detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of perspective 1 of the sensor test fixture structure in one embodiment.

[0022] Figure 2Schematic diagram of perspective 2 of the sensor test fixture structure in one embodiment.

[0023] Figure 3 FIG. 1 is a schematic diagram of assembling a test probe on a sub-jig in an embodiment.

[0024] Figure 4 FIG. 4 is a schematic diagram of a test probe structure in one embodiment.

[0025] Figure 5 Schematic diagram of an integrated sensor measurement device in an embodiment. DETAILED DESCRIPTION

[0026] In order to make the purpose and technical solution of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] The meaning of "inside" and "outside" in the present invention refers to the direction pointing to the inside of the sensitivity test fixture itself, and the direction opposite to the inside is outside, rather than being a specific limitation of the present invention.

[0028] The meanings of "upper" and "lower" in the present utility model are: "upper" refers to a high position, which is opposite to "lower", i.e., the upper side; "lower" refers to a low position, which is opposite to "upper", i.e., the lower layer. It is not a specific limitation of the utility model.

[0029] The meaning of “left and right” in the present invention refers to that when the reader is facing the accompanying drawings, the left side of the reader is the left and the right side of the reader is the right, rather than being a specific limitation of the present invention.

[0030] The term “connection” as used in the present invention may refer to a direct connection between components or an indirect connection between components via other components.

[0031] The meaning of "front" and "rear" in the present invention refers to that when a reader is facing the accompanying drawings, the one closer to the reader is the front and the one farther from the reader is the rear, rather than being a specific limitation of the present invention.

[0032] The terms "first", "second", "third", etc. (if any) described in the present invention are used to distinguish between similar elements, and are not necessarily used to describe a specific order or a chronological order. It is to be understood that these terms used in this way are interchangeable under appropriate circumstances, so that the implementation of the subject matter described herein is, for example, capable of operating in an order different from those described or in another order described herein.

[0033] In one embodiment, in combination Figure 1 to Figure 2 , a sensitivity test fixture for a three-axis visual motion control system is provided, the sensitivity test fixture comprises a mother fixture 1 with a magnetic suction part, a sub-fixture 2 that can be adsorbed by the magnetic suction part, and a test probe 3 for performing a sensitivity test; the mother fixture 1 is mounted on the three-axis visual motion control system, the sub-fixture 2 is mounted on the mother fixture 1, and the test probe 3 is mounted on the sub-fixture 2. The test probe 3 is connected to the data port of the three-axis visual motion control system through a lead wire.

[0034] Furthermore, in one of the embodiments, the mother fixture 1 and the child fixture 2 are embedded in each other.

[0035] In some embodiments, the mother fixture 1 is a cavity structure 1.1, and a magnetic component 1.1.1 is arranged inside the cavity structure 1.1; the sub-fixture 2 is a bump structure 2.1 that can be adsorbed by the magnetic component 1.1.1; when the mother fixture 1 and the sub-fixture 2 are assembled, the bump structure 2.1 is embedded in the cavity structure 1.1, and the front end surface of the bump structure 2.1 is adsorbed on the magnetic component 1.1.1.

[0036] Here, the cavity structure 1.1 and the bump structure 2.1 are matched in size.

[0037] Furthermore, in some embodiments, the mother fixture 1 is also assembled and limited with the three-axis visual motion control system and the sub-fixture 2 respectively through riveting components.

[0038] The riveting assembly includes a first riveting assembly and a second riveting assembly. The first riveting assembly is used to realize the assembly limit of the mother fixture 1 and the child fixture 2, including a first riveting column 1.1.2 arranged inside the cavity structure 1.1, and a first riveting hole 2.1.1 arranged on the front end surface of the bump structure 2.1, and the first riveting column 1.1.2 is assembled correspondingly to the first riveting hole 2.1.1. The second riveting assembly is used to realize the assembly limit of the mother fixture 1 and the three-axis visual motion control system, including a second riveting column 1.1.3 arranged outside the cavity structure 1.1, and a second riveting hole arranged on the three-axis visual motion control system, and the second riveting column 1.1.3 is assembled correspondingly to the second riveting hole.

[0039] Here, the front end surface of the bump structure 2.1 is a surface close to the cavity structure 1.1.

[0040] There is no particular limitation on the number and specific positions of the riveting columns.

[0041] The riveting assembly further comprises a third riveting hole 1.1.4 arranged outside the cavity structure 1.1 and fixed to the driving component of the three-axis visual motion control system by bolts.

[0042] Furthermore, in one of the embodiments, the sub-jig 2 is provided with a pullable handle 2.2 for disassembling the sub-jig 2.

[0043] Furthermore, in one of the embodiments, the sub-jig 2 is provided with a base 2 . 3 for assembling the test probe 3 .

[0044] Here, in some embodiments, combined Figure 3 The base 2.3 is provided with a vertical cavity structure 2.3.1 for assembling the test probe 3, and the cross-section of the cavity structure 2.3.1 is a connected circular structure 2.3.1.1 and a rectangular structure 2.3.1.2, and the circular structure 2.3.1.1 is located at one end of the rectangular structure 2.3.1.2; the position of the cavity structure 2.3.1 is adjusted according to the position of the product sensitivity test point.

[0045] Here, in some embodiments, combined Figure 4 The test probe 3 includes a probe body 3.1 and a limiting structure 3.2; the probe body 3.1 is an elastic probe structure, including a probe barrel 3.1.1, an elastic device 3.1.2 installed in the probe barrel 3.1.1, and a needle 3.1.3 connected to the elastic device 3.1.2 for realizing sensitivity testing; the limiting structure 3.2 is used to limit the test probe 3, and the elastic device 3.1.2 is used to realize elastic control of the needle 3.1.3.

[0046] The probe body 3.1 is assembled in a concave cavity with a circular structure 2.3.1.1 in cross section to realize movement in the Z-axis direction and limit in the X and Y directions, where the Z-axis direction is the vertical direction; the limiting structure 3.2 is oriented toward and embedded in the concave cavity with a rectangular structure 2.3.1.2 in cross section to limit the clockwise and counterclockwise rotation directions of the test probe 3.

[0047] Here, preferably, the elastic device 3.1.2 adopts but is not limited to a spring.

[0048] Here preferably, the needle 3.1.3 adopts a 4-terminal test probe to achieve low inductance, wide range, and high-precision inductance testing through the Kelvin test method.

[0049] Here preferably, the head size of the test probe 3 after being pressed is less than 0.4 mm, the pressing range is 3 mm-5 mm, and the pressing force is 3N-5N.

[0050] In one embodiment, a testing device is provided, Figure 5 The test device includes the sensor test fixture mounted on the three-axis visual motion control system, and the sensor tester integrated on the three-axis visual motion control system for collecting test data. The three-axis visual motion control system includes an X, Y, and Z three-axis drive system 6.1, a CCD automatic visual position recognition system 6.2, and a non-contact laser height detection system 6.3. The test probe 3 realizes high-precision and short-time operation test of the probe through the three-axis visual motion control system.

[0051] In summary, the sensor test fixture for the three-axis visual motion control system of the utility model has the advantages of high precision, high efficiency, easy use and simple operation. It can be applied to the continuous updating and upgrading of samples, batches and products to meet the needs of automated production, and has a lower cost than the flying probe tester.

[0052] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A sensory measurement fixture for a three-axis visual motion control system, characterized in that: The sensitivity test fixture includes a mother fixture with a magnetic suction part, a sub-fixture that can be adsorbed by the magnetic suction part, and a test probe for performing a sensitivity test; the mother fixture is mounted on a three-axis visual motion control system, the sub-fixture is mounted on the mother fixture, and the test probe is mounted on the sub-fixture.

2. The sensory measurement test fixture for a three-axis visual motion control system according to claim 1 is characterized in that: The mother fixture and the child fixture are embedded in each other.

3. The sensory measurement test fixture for a three-axis visual motion control system according to claim 2 is characterized in that: The mother fixture is a cavity structure, and a magnetic attraction piece is arranged inside the cavity structure; the sub-fixture is a convex block structure that can be adsorbed by the magnetic attraction piece; when the mother fixture and the sub-fixture are assembled, the convex block structure is embedded in the cavity structure.

4. The sensory measurement test fixture for a three-axis visual motion control system according to claim 2, characterized in that: The mother fixture is also assembled and limited with the three-axis visual motion control system and the sub-fixture through riveting components.

5. The sensory measurement test fixture for a three-axis visual motion control system according to claim 1, characterized in that: The sub-jig is provided with a handle that can be pulled out for disassembling the sub-jig.

6. The sensory measurement test fixture for a three-axis visual motion control system according to claim 1, characterized in that: The sub-jig is provided with a base for assembling the test probe.

7. The sensory measurement test fixture for a three-axis visual motion control system according to claim 6, characterized in that: The base is provided with a vertical cavity structure for assembling the test probe, the cross-section of the cavity structure is a connected circular structure and a rectangular structure, and the circular structure is located at one end of the rectangular structure; the position of the cavity structure is adjusted according to the position of the product sensitivity test point.

8. The sensory measurement test fixture for a three-axis visual motion control system according to claim 7, characterized in that: The test probe includes a probe body and a limiting structure; the probe body is an elastic probe structure, including a probe barrel, an elastic device installed in the probe barrel, and a needle connected to the elastic device for realizing sensitivity testing; the limiting structure is used to limit the test probe.

9. The sensory measurement test fixture for a three-axis visual motion control system according to claim 8, characterized in that: The probe body is assembled in a concave cavity with a circular cross-section to achieve movement in the Z-axis direction and limit the X and Y directions, where the Z-axis direction is the vertical direction; the limiting structure faces and is embedded in the concave cavity with a rectangular cross-section to limit the clockwise and counterclockwise rotation directions of the test probe.

10. A test device based on the sensitivity test fixture according to any one of claims 1 to 9, characterized in that: The testing device includes the sensory measurement test fixture mounted on the three-axis visual motion control system and the sensory measurement tester integrated on the three-axis visual motion control system.

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