Line loss detection clamp compatible with circuit boards of different specifications
By designing a radio frequency pin mobile module with an adjustable carrier plate, the problem of difficulty in compatible with circuit boards of different specifications in the prior art for wire loss detection is solved, and an efficient and low-cost detection process is achieved.
Patent Information
- Application Number
- CN202420024582.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-05
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-01-05
AI Technical Summary
The prior art is difficult to compatible with circuit boards of different specifications for wire loss testing, resulting in frequent replacement of test fixtures, increasing workload and production costs.
A linear loss detection fixture including a radio frequency needle moving module, a carrier plate and a base is designed. The carrier plate is equipped with longitudinal and transverse step grooves, limit blocks and positioning blocks, which can be adjusted to adapt to circuit boards of different specifications.
It realizes compatible inspection of circuit boards of different specifications, improves work efficiency, reduces the cost of purchasing different inspection equipment, and reduces production costs.
Smart Images
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Abstract
Description
Technical Field
[0001] The utility model relates to a line loss detection fixture, in particular to a line loss detection fixture compatible with circuit boards of different specifications. Background Art
[0002] At present, there are many kinds of circuit boards, and the shapes and sizes of circuit boards of different specifications are all different. Different test fixtures are needed to meet the test requirements during the line loss detection of circuit boards. Most of the existing product RF connector tests are independent fixtures or manual inspections. Due to their specific positioning and installation, they cannot achieve compatibility testing for different products and different RF connectors, and can only detect a certain product separately. Obviously, the frequent replacement of test fixtures not only increases the daily workload of workers and reduces labor efficiency, but also greatly increases the company's production costs. Therefore, it is urgent to propose a new technical solution to solve the above problems. Utility Model Content
[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a line loss detection fixture which improves work efficiency, reduces production costs, is easy to operate and is compatible with circuit boards of different specifications.
[0004] The technical solution adopted by the utility model is: the utility model includes a radio frequency needle moving module, a carrier plate and a base, the carrier plate is provided with a plurality of longitudinal step grooves, a plurality of transverse step grooves, a plurality of limit blocks and a plurality of positioning blocks, a plurality of the limit blocks are detachably fixed on a plurality of the longitudinal step grooves, a plurality of the positioning blocks are detachably fixed on a plurality of the transverse step grooves, the radio frequency needle moving module includes a radio frequency needle and an XY axis moving carrier plate, the radio frequency needle is arranged at the movable end of the XY axis moving carrier plate, the radio frequency needle moving module is floatingly arranged on the base, and the carrier plate is slidably connected to the base.
[0005] Furthermore, the XY-axis transfer plate includes an X-axis sliding plate, a radio frequency needle fixing block and two Y-axis sliding plates, the X-axis sliding plate is provided with an X-axis sliding groove adapted to the radio frequency needle fixing block, and the two Y-axis sliding plates are provided with Y-axis sliding grooves adapted to the X-axis sliding plate.
[0006] Furthermore, the radio frequency needle moving module includes an upper pressing frame, on which a radio frequency needle adjustment groove corresponding to the carrier plate is provided, and the two Y-axis sliding plates are arranged at the lower end of the upper pressing frame.
[0007] Furthermore, the radio frequency needle moving module also includes a guide sleeve, a support guide column and a floating spring, the floating spring is sleeved on the support guide column, and the guide sleeve is adapted to the support guide column.
[0008] Furthermore, the radio frequency needle moving module also includes a quick clamp, and an anti-overpressure column corresponding to the quick clamp is provided on the base.
[0009] Furthermore, the upper pressing frame is provided with a guide column, and the carrier plate is provided with a guide hole adapted to the guide column.
[0010] Furthermore, a support plate is arranged between the carrier plate and the base, and equal-height screws and a support spring are arranged between the carrier plate and the support plate, and the support spring is adapted to the equal-height screws.
[0011] Furthermore, the support plate is connected to the base via a sliding structure.
[0012] Furthermore, a plurality of gasket nails are also arranged on the carrier plate.
[0013] Furthermore, a sliding handle is provided on one side of the carrier plate, and press-fit buckles adapted to the product are provided on both ends of the carrier plate.
[0014] The beneficial effects of the utility model are as follows: compared with the traditional test fixture, the utility model adopts the structural design of the carrier plate 9, and the plurality of positioning blocks 7 constrain the freedom of movement of the product in the X-axis direction, and the plurality of limit blocks 6 constrain the freedom of movement of the product in the Y-axis direction, and the plurality of positioning blocks 7 and the plurality of limit blocks 6 are adjustable, and can be positioned according to the different shapes of the products, thereby realizing the installation of circuit boards of different specifications and other products for line loss detection. At the same time, the installation and debugging is convenient and fast, and the test stability is good, which not only improves the work efficiency, but also reduces the cost of enterprises to purchase different testing equipment, thereby greatly reducing the production cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a three-dimensional view of the utility model;
[0016] Figure 2 It is a stereoscopic view of another viewing angle of the utility model;
[0017] Figure 3 is a schematic structural diagram of the carrier board 2;
[0018] Figure 4 It is a structural schematic diagram of the XY axis transfer plate. DETAILED DESCRIPTION
[0019] like Figures 1 to 4As shown, in this embodiment, the utility model includes a radio frequency needle moving module 1, a carrier plate 2 and a base 3, and the carrier plate 2 is provided with a plurality of longitudinal step grooves 4, a plurality of transverse step grooves 5, a plurality of limit blocks 6 and a plurality of positioning blocks 7, and a plurality of the limit blocks 6 are detachably fixed on a plurality of the longitudinal step grooves 4, and a plurality of the positioning blocks 7 are detachably fixed on a plurality of the transverse step grooves 5. The radio frequency needle moving module 1 includes a radio frequency needle 8 and an XY axis moving plate 9, and the radio frequency needle 8 is arranged at the movable end of the XY axis moving plate 9. The radio frequency needle moving module 1 is floatingly arranged on the base 3, and the carrier plate 2 is slidably connected to the base 3. It can be seen from the above scheme that the carrier plate 2 is located between the RF needle moving module 1 and the base 3, the carrier plate 2 is used to install the product, the plurality of longitudinal step grooves 4 are longitudinally arranged in parallel on the carrier plate 2 and slide with the plurality of limit blocks 6, the plurality of longitudinal step grooves 4 are located on the left side of the plurality of transverse step grooves 5, the plurality of transverse step grooves 5 are transversely arranged on the carrier plate 2 and slide with the plurality of positioning blocks 7, the plurality of limit blocks 6 and the plurality of longitudinal step grooves 4 are connected by screws, the plurality of positioning blocks 7 and the plurality of transverse step grooves 5 are connected by screws, the plurality of positioning blocks 7 are used to constrain the freedom of movement of the product in the X-axis direction, the plurality of limit blocks 6 are used to constrain the freedom of movement of the product in the Y-axis direction, the RF needle 8 is arranged at the active end of the XY-axis moving plate 9 and corresponds to the product, the XY-axis moving plate 9 can float up and down on the carrier plate 2, and the RF needle 8 is controlled to perform a pressing test on the product when the XY-axis moving plate 9 is pressed down. Therefore, the utility model not only has a simple structure, but also, compared with the traditional test fixture, through the structural design of the carrier board 9, it can install circuit boards of various specifications for line loss detection, and the installation and debugging are convenient and fast, which not only has high work efficiency, but also reduces the cost of enterprises to purchase different detection equipment, thereby greatly reducing production costs.
[0020] In this embodiment, the XY axis transfer plate 9 includes an X axis sliding plate 91, a radio frequency needle fixing block 92 and two Y axis sliding plates 93, the X axis sliding plate 91 is provided with an X axis slide groove 94 adapted to the radio frequency needle fixing block 92, and the two Y axis sliding plates 93 are provided with a Y axis slide groove 95 adapted to the X axis sliding plate 91. It can be seen that the radio frequency needle 8 is arranged on the radio frequency needle fixing block 92, the radio frequency needle fixing block 92 is detachably connected to the X axis sliding plate 91, the radio frequency needle fixing block 92 is slidably matched with the X axis sliding plate 91, and the X axis sliding plate 91 is slidably matched with the two Y axis sliding plates 93, so as to control the movement of the radio frequency needle 8 in the same plane, ensure the moving position accuracy of the radio frequency needle 8, and the testing of different products can be realized by replacing different radio frequency needle fixing blocks 92.
[0021] In this embodiment, the RF needle moving module 1 includes an upper pressing frame 10, and the upper pressing frame 10 is provided with a RF needle adjustment groove 11 corresponding to the carrier plate 2, and the two Y-axis sliding plates 93 are fixedly arranged at the lower end of the upper pressing frame 10. It can be seen that the upper pressing frame 10 is located above the carrier plate 2, and the RF needle 8 is located in the RF needle adjustment groove 11, so that the position adjustment of the RF needle 8 is more convenient.
[0022] In this embodiment, the RF needle moving module 1 further includes two guide sleeves 12, two support guide pillars 13 and two floating springs 14. The two floating springs 14 are sleeved on the two support guide pillars 13, and the two guide sleeves 12 are adapted to the two support guide pillars 13. It can be seen that the two guide sleeves 12 are both arranged on the upper pressing frame 10, one end of the two support guide pillars 13 is fixed on the base 3, and the two floating springs 14 are respectively sleeved on the two support guide pillars 13, so that the upper pressing frame 10 can be reset immediately after being pressed down by external force.
[0023] In this embodiment, the RF needle moving module 1 also includes a quick clamp 15, and an anti-overpressure column 16 corresponding to the quick clamp 15 is provided on the base 3. It can be seen that the quick clamp 15 is provided on the upper pressing frame 10, and the anti-overpressure column 16 is fixed on the base 3 and corresponds to the upper pressing frame 10. When the product line damage is detected, after the upper pressing frame 10 is pressed down, the quick clamp 15 is buckled to maintain the relative position of the RF needle 8 and the product. The anti-overpressure column 16 is used to prevent damage to the product due to excessive pressure, thereby improving the safety of the utility model.
[0024] In this embodiment, two guide posts 17 are respectively provided at both ends of the lower surface of the upper pressing frame 10, and the carrier plate 2 is provided with guide holes 18 adapted to the guide posts 17. It can be seen that the two guide posts 17 are fixed at both ends of the lower surface of the upper pressing frame 10, and the carrier plate 2 is provided with guide holes 18 corresponding to the guide posts 17, thereby improving the stability of the utility model.
[0025] In this embodiment, a support plate 19 is provided between the carrier plate 2 and the base 3, and six equal-height screws 20 and six support springs 21 are provided between the carrier plate 2 and the support plate 19, and the six support springs 21 are adapted to the six equal-height screws 20. It can be seen that the support plate 19 is connected to the carrier plate 2 through the six equal-height screws 20, and the six support springs 21 are respectively sleeved on the six equal-height screws 20. The carrier plate 2 floats on the support plate 19 through the six equal-height screws 20 and the six support springs 21, so that the carrier plate 2 can play a certain buffering role when it is pressed.
[0026] In this embodiment, the support plate 19 is connected to the base 3 through a sliding structure 22. It can be seen that the sliding structure 22 is mainly composed of two slide bars 31, two sliders 32, two linear slide rails 33, two pulleys 34 and two stoppers 35. The two slide bars 31 are fixed to the lower end of the support plate 19, the two pulleys 34 are arranged on the base 3 and correspond to the two linear slide rails 33, the two slide bars 31 are rollingly connected with the two slide bars 31, the two sliders 32 are fixed to the lower ends of the two slide bars 31, the two linear slide rails 33 are fixed to the base 3 and slidably cooperate with the two sliders 32, and the two stoppers 35 are fixed to the ends of the two linear slide rails 33, so that the support plate 19 and the carrier plate 2 are moved out together along the direction of the linear slide rails 33, thereby facilitating the rapid installation of the product.
[0027] In this embodiment, a plurality of spacer nails 25 are also provided on the carrier plate 2. It can be seen that the plurality of spacer nails 25 are used to support the product, reduce the friction between the product and the carrier plate 2, and improve the service life of the utility model.
[0028] In this embodiment, a sliding handle 23 is provided on one side of the carrier 2, and press buckles 24 adapted to the product are provided at both ends of the carrier 2. The sliding handle 23 is fixed on the carrier 2, and the press buckles 24 are used to constrain the freedom of movement of the product in the Z direction, further improving the test stability of this utility model.
[0029] In this embodiment, the working principle of the utility model is:
[0030] When it is necessary to perform line loss detection on the circuit board, first pull out the carrier 2 through the sliding handle 23, open the pressing buckle 24, then place the circuit board on the carrier 2, and fasten the pressing buckle 24. At this time, some of the limit blocks 6 and some of the positioning blocks 7 are in an active state. Some of the limit blocks 6 are adjusted to constrain the freedom of movement of the product in the Y-axis direction, and some of the positioning blocks 7 are adjusted to constrain the freedom of movement of the product in the X-axis direction. After positioning the circuit board, push the carrier 2 in, and then adjust the RF needle 8 to correspond to the circuit board through the XY-axis shift plate 9, then press down the upper pressure frame 10, and fasten the quick clamp 15 to perform line loss detection on the circuit board.
[0031] Although the embodiments of the present invention are described with practical solutions, they do not constitute limitations on the meaning of the present invention. For those skilled in the art, it is obvious to modify the implementation scheme and combine it with other solutions based on this description.
Claims
1. A line loss detection fixture compatible with circuit boards of different specifications, comprising a radio frequency needle moving module (1), a carrier board (2) and a base (3), characterized in that: The carrier plate (2) is provided with a plurality of longitudinal step grooves (4), a plurality of transverse step grooves (5), a plurality of limit blocks (6) and a plurality of positioning blocks (7); the plurality of limit blocks (6) are detachably fixed on the plurality of longitudinal step grooves (4); the plurality of positioning blocks (7) are detachably fixed on the plurality of transverse step grooves (5); the radio frequency needle moving module (1) comprises a radio frequency needle (8) and an XY axis moving plate (9); the radio frequency needle (8) is arranged at the movable end of the XY axis moving plate (9); the radio frequency needle moving module (1) is floatingly arranged on the base (3); and the carrier plate (2) is slidably connected to the base (3).
2. The line loss detection fixture compatible with circuit boards of different specifications according to claim 1 is characterized in that: The XY-axis transfer plate (9) comprises an X-axis sliding plate (91), a radio frequency needle fixing block (92) and two Y-axis sliding plates (93); the X-axis sliding plate (91) is provided with an X-axis sliding groove (94) adapted to the radio frequency needle fixing block (92); and the two Y-axis sliding plates (93) are provided with Y-axis sliding grooves (95) adapted to the X-axis sliding plate (91).
3. The line loss detection fixture compatible with circuit boards of different specifications according to claim 2 is characterized in that: The radio frequency needle moving module (1) comprises an upper pressing frame (10), on which a radio frequency needle adjustment groove (11) corresponding to the carrier plate (2) is arranged, and the two Y-axis sliding plates (93) are arranged at the lower end of the upper pressing frame (10).
4. The line loss detection fixture compatible with circuit boards of different specifications according to claim 1 is characterized in that: The radio frequency needle moving module (1) further comprises a guide sleeve (12), a supporting guide column (13) and a floating spring (14); the floating spring (14) is sleeved on the supporting guide column (13); and the guide sleeve (12) is adapted to fit the supporting guide column (13).
5. The line loss detection fixture compatible with circuit boards of different specifications according to claim 1 is characterized in that: The radio frequency needle moving module (1) further comprises a quick clamp (15), and the base (3) is provided with an overpressure prevention column (16) corresponding to the quick clamp (15).
6. The line loss detection fixture compatible with circuit boards of different specifications according to claim 3 is characterized in that: The upper pressing frame (10) is provided with a guide column (17), and the carrier plate (2) is provided with a guide hole (18) adapted to the guide column (17).
7. The line loss detection fixture compatible with circuit boards of different specifications according to claim 1 is characterized in that: A support plate (19) is arranged between the carrier plate (2) and the base (3), and equal-height screws (20) and a support spring (21) are arranged between the carrier plate (2) and the support plate (19), and the support spring (21) is adapted to the equal-height screws (20).
8. The line loss detection fixture compatible with circuit boards of different specifications according to claim 7 is characterized in that: The support plate (19) is connected to the base (3) via a sliding structure (22).
9. The line loss detection fixture compatible with circuit boards of different specifications according to claim 1, characterized in that: A plurality of spacer nails (25) are also provided on the carrier plate (2).
10. The line loss detection fixture compatible with circuit boards of different specifications according to claim 1, characterized in that: A sliding handle (23) is provided on one side of the carrier plate (2), and press-fit buckles (24) adapted to the product are provided at both ends of the carrier plate (2).