Substrate detection jig rotation adjustment mechanism

Abstract

The utility model discloses a kind of substrate detection fixture rotation adjusting mechanism, including rack, base and the adjusting assembly of driving base rotation, the base is rotatably installed on rack, and rotating handle is provided on base and extends outward;The adjusting assembly includes X direction moving block, Y direction moving block, screw rod and adjusting motor, the X direction moving block and Y direction moving block are mutually sliding fit, and rotating handle is rotatably installed on Y direction moving block;The adjusting motor moves along X axis direction by screw rod driving X direction moving block and Y direction moving block synchronously, Y direction moving block is limited by rotating handle, relatively X direction moving block moves in Y axis direction, and rotating handle drives base to rotate.The utility model uses motor direct drive and screw rod, and linear displacement is converted into rotation angle control by the composite motion of X / Y axis, greatly simplifies the complex mechanical structure of traditional worm gear or multistage gear, small and nimble and fast response, can be quickly completed high-precision rotation fine adjustment.

Description

Technical Field

[0001] This utility model relates to the field of substrate testing technology, and in particular to a substrate testing fixture rotation adjustment mechanism. Background Technology

[0002] In the field of electronics manufacturing, printed circuit boards (PCBs), which are the core carriers of electronic devices, need to have their electrical performance and structural reliability verified by specialized testing fixtures. In traditional testing systems, testing fixtures are set on both the upper and lower sides of the testing station, with the upper and lower testing fixtures facing each other. After pressing, the high-density probe array on the fixtures makes reliable contact with the substrate pads to complete key tests such as conductivity, insulation resistance, and signal integrity.

[0003] In actual testing, the testing fixture needs to be positioned on the X and Y axes and rotated in the θ direction to ensure precise connection between the probe and the substrate pads. Traditional substrate testing fixtures typically employ worm gear drives, multi-stage gear sets, or linkage structures to mechanically adjust and fix the rotation angle. These mechanical transmission mechanisms rely on complex combinations of multi-stage gears or worm gears, resulting in a large overall structure that is difficult to adapt to the design requirements of compact testing equipment or miniaturized fixtures. Furthermore, maintenance is difficult, requiring repeated tightening and loosening of locking devices during adjustment, making operation cumbersome and hindering precise fine-tuning, thus affecting testing efficiency and accuracy. Utility Model Content

[0004] To address the aforementioned problems, this invention provides a substrate testing fixture rotation adjustment mechanism, which has a simple structure and high adjustment accuracy.

[0005] Therefore, the technical solution of this utility model is: a substrate testing fixture rotation adjustment mechanism, including a frame, a base, and an adjustment component for driving the base to rotate. The base is rotatably mounted on the frame, and a rotating handle extending outward is provided on the base. The adjustment component includes an X-axis moving block, a Y-axis moving block, a lead screw, and an adjustment motor. The X-axis moving block and the Y-axis moving block slide against each other, and the rotating handle is rotatably mounted on the Y-axis moving block. The adjustment motor drives the X-axis moving block and the Y-axis moving block to move synchronously along the X-axis direction through the lead screw. The Y-axis moving block is restricted by the rotating handle and moves relative to the X-axis moving block in the Y-axis direction, and the rotating handle drives the base to rotate.

[0006] Based on the above scheme and as a preferred embodiment of the above scheme: the X-axis moving block is provided with a threaded hole that engages with the lead screw thread, and the adjusting motor drives the X-axis moving block to move along the X-axis direction through the lead screw.

[0007] Based on the above scheme and as a preferred embodiment of the above scheme: the frame is further provided with an X-axis guide rail, and the X-axis moving block is slidably mounted on the X-axis guide rail; the X-axis moving block is provided with a Y-axis guide rail, and the Y-axis moving block is provided with a sliding groove, and can be slidably mounted on the Y-axis guide rail.

[0008] Based on the above scheme and as a preferred embodiment of the above scheme: the lead screw is connected to the X-direction moving block through an adapter plate, that is, one end of the adapter plate is threaded with the lead screw, and the other end is equipped with the X-direction moving block.

[0009] Based on the above scheme and as a preferred embodiment of the above scheme: the frame is further provided with an X-axis guide rail, and the adapter plate is slidably mounted on the X-axis guide rail; an adjusting block is fixed at one end of the adapter plate, and the adjusting block is threadedly engaged with the lead screw.

[0010] Based on the above scheme and as a preferred embodiment of the above scheme: the Y-axis moving block and the X-axis moving block slide together along the Y-axis direction, and the end of the rotating handle is rotatably connected to the Y-axis moving block through a bearing.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. It adopts a direct-drive motor and lead screw slider linkage design, which converts linear displacement into rotation angle control through the composite motion of X / Y axes, greatly simplifying the complex mechanical structure of traditional worm gears or multi-stage gears; the motor and lead screw work together directly to achieve transmission, which is compact and fast-responding, and can quickly complete high-precision rotational fine adjustment.

[0013] 2. An adapter plate connects the lead screw and the X-axis moving block. When the fixture is subjected to external impact or deflection load, the adapter plate acts as a transfer component, which can effectively absorb part of the impact force, avoid irreversible damage to the lead screw and adjusting motor, significantly extend the service life of the transmission components, and reduce the frequency of equipment maintenance. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of Example 1;

[0015] Figure 2 for Figure 1 A magnified view of a portion of the image;

[0016] Figure 3 This is a bottom view of the base structure in Example 1;

[0017] Figure 4 This is a structural cross-sectional view of Example 1;

[0018] Figure 5 This is a schematic diagram of the structure of Example 2;

[0019] Figure 6 for Figure 5 A magnified view of a portion of the image;

[0020] Figure 7 This is a bottom view of the base structure in Example 2;

[0021] Figure 8 This is a cross-sectional view of the structure of Example 2.

[0022] The components are labeled as follows: base 1, rotary handle 11, bearing 12, first adjustment component 2, first X-axis guide rail 21, first X-axis moving block 22, first Y-axis moving block 23, first lead screw 24, first adjustment motor 25, first Y-axis guide rail 26, first slide groove 27, second adjustment component 3, adapter plate 31, second X-axis moving block 32, second Y-axis moving block 33, second lead screw 34, second adjustment motor 35, second X-axis guide rail 36, adjustment block 37, and second slide groove 38. Detailed Implementation

[0023] In the description of this utility model, it should be noted that the directional terms such as "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" or "a number" means two or more, unless otherwise explicitly specified.

[0025] Example 1

[0026] The substrate testing fixture rotation adjustment mechanism described in this embodiment includes a frame, a base 1, and a first adjustment component 2 that drives the base to rotate. The base 1 is rotatably mounted on the frame and has an outwardly extending rotary handle 11. The first adjustment component 2 includes a first X-axis guide rail 21, a first X-axis moving block 22, a first Y-axis moving block 23, a first lead screw 24, and a first adjustment motor 25. The first X-axis guide rail 21 is mounted on a base plate, and the base plate is fixed to the frame. The first X-axis moving block 22 is slidably mounted on the first X-axis guide rail 21 and has a threaded hole that is threadedly engaged with the first lead screw 24. The first adjustment motor 25 drives the first X-axis moving block 22 to move along the X-axis direction through the first lead screw 24.

[0027] The first X-axis moving block 22 is provided with a first Y-axis guide rail 26, and the first Y-axis moving block 23 is provided with a first sliding groove 27, which can be slidably installed on the first Y-axis guide rail 26. The first Y-axis guide rail 26 can be a dovetail guide rail, and the first sliding groove 27 is a dovetail groove, which allows the first sliding groove 27 to be hung on the first Y-axis guide rail 26 and move along the Y-axis guide rail.

[0028] The end of the rotary handle 11 is rotatably mounted on the first Y-axis moving block 23 via the bearing 12; the first adjusting motor 25 drives the first X-axis moving block 22 to move along the X-axis direction via the first lead screw 24. At the same time, the first Y-axis moving block 23 and the rotary handle 11 are both subjected to the force in the X-axis direction. Under the restriction of the base 1, the rotary handle 11 can only drive the base 1 to rotate. Therefore, the rotary handle 11 will rotate relative to the first Y-axis moving block 23 and push the first Y-axis moving block 23 to move relative to the first X-axis moving block 22 in the Y-axis direction, thereby ensuring that the rotary handle 11 can smoothly drive the base 1 to rotate.

[0029] Example 2

[0030] The substrate testing fixture rotation adjustment mechanism described in this embodiment includes a frame, a base 1, and a second adjustment component 3 that drives the base to rotate. The base 1 is rotatably mounted on the frame, and the base 1 is provided with an outwardly extending rotary handle 11.

[0031] The second adjustment assembly 3 includes a transition plate 31, a second X-axis moving block 32, a second Y-axis moving block 33, a second lead screw 34, and a second adjustment motor 35. The second lead screw 34 is mounted on the output shaft of the second adjustment motor 35. The frame is also provided with a second X-axis guide rail 36. The transition plate 31 is slidably mounted on the second X-axis guide rail 36 via a slider. One end of the transition plate 31 is fixed with an adjustment block 37, which has a threaded hole that threadedly engages with the second lead screw 34. The other end of the transition plate 31 is fixed with a second X-axis moving block 32, which has a second Y-axis sliding groove 38 in the middle. The second Y-axis moving block 33 is placed in the second sliding groove 38, and the two slide in cooperation. The end of the rotating handle 11 is rotatably connected to the second Y-axis moving block 33 via a bearing 12.

[0032] In use, the substrate testing fixture mounting base is installed on the base 1. The second adjusting motor 35 drives the second lead screw 34 to rotate, causing the adjusting block 37 to move along the second lead screw 34. The adjusting block 37 drives the adapter plate 31 to translate along the second X-axis guide rail 36, thereby driving the second X-axis moving block 32 to move along the X-axis direction. At the same time, the second Y-axis moving block 33 and the rotating handle 11 are both subjected to the force in the X-axis direction. Under the restriction of the base 1, the rotating handle 11 can only drive the base 1 to rotate. The rotating handle 11 rotates relative to the second Y-axis moving block 33 and pushes the second Y-axis moving block 33 to move along the second slide groove 38, thereby ensuring that the rotating handle 11 can smoothly drive the base 1 to rotate.

[0033] This embodiment is applicable to the rotational adjustment of large jigs. The second lead screw 34 and the second X-axis moving block 32 are connected by an adapter plate 31. When the jig is subjected to external impact or deflection load, the adapter plate 31 and the second X-axis guide rail 36 can effectively absorb part of the impact force, avoid irreversible damage to the second lead screw 34 and the second adjusting motor 35, significantly extend the service life of the transmission components, and reduce the frequency of equipment maintenance.

[0034] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A substrate inspection fixture rotation adjustment mechanism, characterized in that: The system includes a frame, a base, and an adjustment assembly that drives the base to rotate. The base is rotatably mounted on the frame and has an outwardly extending rotary handle. The adjustment assembly includes an X-axis moving block, a Y-axis moving block, a lead screw, and an adjustment motor. The X-axis moving block and the Y-axis moving block slide against each other, and the rotary handle is rotatably mounted on the Y-axis moving block. The adjustment motor drives the X-axis moving block and the Y-axis moving block to move synchronously along the X-axis direction via the lead screw. The Y-axis moving block is restricted by the rotary handle and moves relative to the X-axis moving block in the Y-axis direction. The rotary handle also drives the base to rotate.

2. The substrate inspection fixture rotation adjustment mechanism as described in claim 1, characterized in that: The X-axis moving block is provided with a threaded hole that engages with the lead screw thread. The adjusting motor drives the X-axis moving block to move along the X-axis direction through the lead screw.

3. The substrate inspection fixture rotation adjustment mechanism as described in claim 2, characterized in that: The frame is also provided with an X-axis guide rail, and an X-axis moving block is slidably mounted on the X-axis guide rail; the X-axis moving block is provided with a Y-axis guide rail, and the Y-axis moving block is provided with a sliding groove, and can be slidably mounted on the Y-axis guide rail.

4. The substrate inspection fixture rotation adjustment mechanism as described in claim 1, characterized in that: The lead screw is connected to the X-axis moving block through an adapter plate, that is, one end of the adapter plate is threaded with the lead screw, and the other end is equipped with the X-axis moving block.

5. The substrate inspection fixture rotation adjustment mechanism as described in claim 4, characterized in that: The frame is also equipped with an X-axis guide rail, and the adapter plate is slidably mounted on the X-axis guide rail; an adjustment block is fixed at one end of the adapter plate, and the adjustment block is threadedly engaged with the lead screw.

6. The substrate inspection fixture rotation adjustment mechanism as described in claim 5, characterized in that: The Y-axis moving block and the X-axis moving block slide together along the Y-axis direction, and the end of the rotating handle is rotatably connected to the Y-axis moving block through a bearing.

Images