Universal test fixture for multi-model filters

Abstract

The utility model discloses a universal test fixture for filters of multiple models. The universal test fixture comprises a test platform, a clamping assembly and a moving assembly, a plurality of interfaces are arranged on the periphery of the test platform in an array manner; the clamping assembly comprises a base, a fixed seat and a rotating rod; one end of the rotating rod is fixedly connected with a clamping plate, and the other end is fixedly provided with a rotating round table; the moving assembly comprises a sliding rail, a sliding seat and a rotating seat; the rotating seat is arranged below the base; by arranging the slide rail on the test platform, the filter can move back and forth on the test platform to be close to the position where the interface is needed, and by arranging the rotating seat, the filter is driven to rotate, so that the interface position on the filter corresponds to the interface position on the test platform at a more appropriate angle, the addition of leads is reduced, and the test efficiency is improved. The problems that when the position of a wiring port is far, a plurality of leads are needed for guiding, so that wiring is complex, and follow-up adjustment or troubleshooting is difficult are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of filter testing devices, in particular to a universal testing fixture for multi-model filters. Background Art

[0002] A filter is an electronic device or circuit component used to process electrical signals, especially to selectively pass or suppress signals within a specific frequency range; its main function is to pass certain frequency components in the input signal while blocking or weakening other frequency components according to its design and configuration. When testing a filter, it needs to be fixedly clamped, so a testing fixture is required; among them, a fixture refers to a device used in the mechanical manufacturing process to fix the processing object, make it occupy the correct position to accept construction or detection, including welding fixtures, testing fixtures, assembly fixtures, etc.

[0003] In the prior art, when clamping and fixing a filter, a fixture of a fixed model is selected, and one testing fixture corresponds to one model of filter. When testing multi-model filters, that is, filters with different sizes cannot be universal, and they cannot be firmly clamped and tested; at the same time, after the filter is clamped and fixed, its position cannot be moved, and when wiring operations for multiple interfaces are required during testing, the fixed position causes certain difficulties in wiring processing. When the wiring ports are far away, multiple leads are needed for guidance, resulting in complicated wiring and difficulties in subsequent adjustment or troubleshooting.

[0004] Therefore, it is necessary to improve the universal testing fixture for filters in the prior art to solve the above problems. Summary of the Invention

[0005] The utility model overcomes the deficiencies of the prior art and provides a universal testing fixture for multi-model filters.

[0006] To achieve the above object, the technical solution adopted by the utility model is: a universal testing fixture for multi-model filters, including: a testing platform, a clamping component installed on the testing platform, and a moving component arranged in cooperation with the clamping component.

[0007] A number of interfaces are arranged in an array around the testing platform, and the clamping component is arranged on one side of the testing platform. The clamping component includes: a base, fixed seats symmetrically arranged on both sides of the base, and rotating rods arranged on each fixed seat; one end of the rotating rod is fixedly connected with a clamping plate, and a rotating turntable is fixedly installed at the end of the rotating rod far away from the clamping plate.

[0008] The moving component is arranged below the base, and the moving component includes: a plurality of slide rails, a sliding seat cooperatively arranged on the slide rails, and a rotating seat installed on the sliding seat; the rotating seat is arranged below the base, and the rotating seat is fixedly connected to the base.

[0009] In a preferred embodiment of the present invention, a circular hole is formed in each of the fixed seats, a threaded cylinder is cooperatively installed in the circular hole, and the rotating rod is cooperatively sleeved in the threaded cylinder.

[0010] In a preferred embodiment of the present invention, a plurality of chutes are formed in the test platform, the slide rails are cooperatively installed in the chutes, and the plurality of slide rails are symmetrically arranged in an array on the test platform.

[0011] In a preferred embodiment of the present invention, an electro-hydraulic push rod is installed at one end of the test platform, and the output end of the electro-hydraulic push rod is fixedly connected to the sliding seat.

[0012] In a preferred embodiment of the present invention, a plurality of positioning grooves are symmetrically formed in the base, the positioning grooves are arranged below the clamping plate, and a plurality of positioning sliders are arranged on the end surface of the bottom of the clamping plate close to one end of the positioning groove.

[0013] In a preferred embodiment of the present invention, the positioning groove is set as a convex groove structure, and the positioning slider is set as a convex structure, and the positioning slider is cooperatively arranged in the positioning groove.

[0014] In a preferred embodiment of the present invention, a rotating groove is formed in the sliding seat, and a rotating bearing is cooperatively installed in the rotating groove.

[0015] In a preferred embodiment of the present invention, a rotating shaft is cooperatively arranged at the center of the rotating seat, and the rotating shaft is rotatably sleeved in the rotating bearing.

[0016] In a preferred embodiment of the present invention, a limiting plate is cooperatively installed at one end of the rotating shaft close to the sliding seat, and a plurality of fixing holes are arrayed on the sliding seat and the limiting plate, and each fixing hole is cooperatively provided with a limiting pin.

[0017] In a preferred embodiment of the present invention, an anti-slip pad is cooperatively arranged on the clamping end surface of the clamping plate.

[0018] The present invention solves the defects in the background technology, and the present invention has the following beneficial effects:

[0019] (1) The utility model provides a universal test fixture for multi-model filters. By setting a slide rail on the test platform, the filter can move back and forth on the test platform, moving to a position near the interface to be tested. And by setting a rotating seat to drive the filter to rotate, the interface position on the filter corresponds to the interface position on the test platform at a more appropriate angle, reducing the addition of leads and making the wiring clearer. This solves the problem that when the wiring port position is far away, multiple leads are needed for guidance, resulting in complicated wiring and difficulties in subsequent adjustment or troubleshooting.

[0020] (2) The utility model symmetrically sets clamping plates and rotating rods on the base. By rotating the rotating rods, the filter to be tested can be clamped and fixed, which can adapt to multi-model filters and is universal for filters with different sizes. This solves the problem that when choosing a fixture of a fixed model, one test fixture corresponds to one model of filter.

[0021] (3) The utility model sets a limiting plate on the rotating shaft. After rotating to a suitable angle, the base is fixed by cooperating with the fixing hole and the limiting pin, preventing the fixed filter from shaking during the test and thus causing the interface to loosen. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The following further illustrates the present utility model in conjunction with the drawings and embodiments;

[0023] Figure 1 is a three-dimensional structure diagram of a preferred embodiment of the present utility model;

[0024] Figure 2 is a top view of a preferred embodiment of the present utility model;

[0025] Figure 3 is a left view of a preferred embodiment of the present utility model;

[0026] In the figure: 1, test platform; 2, clamping component; 21, base; 22, fixed seat; 23, rotating rod; 24, rotating turntable; 25, clamping plate; 26, positioning groove; 27, threaded cylinder; 28, anti-slip pad; 3, moving component; 31, moving groove; 32, slide rail; 33, sliding seat; 34, rotating shaft; 35, rotating seat; 36, limiting plate; 37, limiting pin; 4, electro-hydraulic push rod; 5, interface. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] Now, the present utility model will be further described in detail in conjunction with the drawings and embodiments. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0028] As Figure 1 andFigure 2 As shown in the figure, a universal test fixture for multi-model filters includes: a test platform 1, a clamping component 2 installed on the test platform 1, and a moving component 3 arranged in cooperation with the clamping component 2; a number of interfaces 5 are arranged in an array around the test platform 1. Among them, the interface 5 includes multiple output ports, multiple input ports, ground wires, DC bias ports, control signal ports, monitoring and feedback ports; and also includes RF input ports and RF output ports, and the types of RF input ports and RF output ports include SMA, BNC, N-type, etc.

[0029] The clamping component 2 is arranged on one side of the test platform 1. The clamping component 2 includes: a base 21, fixed seats 22 symmetrically arranged on both sides of the base 21, and a rotating rod 23 arranged on each fixed seat 22.

[0030] One end of the rotating rod 23 is fixedly connected with a clamping plate 25, and a rotating turntable 24 is fixedly installed at the end of the rotating rod 23 far away from the clamping plate 25; a circular hole is opened on each fixed seat 22, and a threaded cylinder 27 is installed in the circular hole in a matching manner, and the rotating rod 23 is sleeved in the threaded cylinder 27 in a matching manner.

[0031] By symmetrically arranging the clamping plate 25 and the rotating rod 23 on the base 21, and clamping and fixing the filter to be tested by rotating the rotating rod 23, it can adapt to multi-model filters and is universal for filters with different sizes, solving the problem that one test fixture corresponds to one model of filter when selecting a fixed-model fixture.

[0032] As Figure 3 As shown in the figure, the moving component 3 is arranged below the base 21, and the moving component 3 includes: a number of slide rails 32, a sliding seat 33 arranged in cooperation with the slide rails 32, and a rotating seat 35 installed on the sliding seat 33; the rotating seat 35 is arranged below the base 21, and the rotating seat 35 is fixedly connected with the base 21; a number of chutes are opened on the test platform 1, the slide rails 32 are installed in the chutes in a matching manner, and a number of slide rails 32 are symmetrically arranged in an array on the test platform 1.

[0033] An electro-hydraulic push rod 4 is installed at one end of the test platform 1, and the output end of the electro-hydraulic push rod 4 is fixedly connected with the sliding seat 33; a number of positioning grooves 26 are symmetrically opened on the base 21, the positioning grooves 26 are arranged below the clamping plate 25, and a number of positioning sliders are arranged on the end face of the bottom of the clamping plate 25 close to the positioning grooves 26; an anti-slip pad 28 is arranged in cooperation on the clamping end face of the clamping plate 25, making the clamping more stable and avoiding the phenomenon of sliding.

[0034] The positioning groove 26 is set as a convex groove structure, and the positioning slider is set as a convex structure. The positioning slider is fitted and arranged in the positioning groove 26. Among them, when clamping the filter, prepare multiple base pads with different sizes, place them at the bottom of the filter according to the model of the filter, and prevent the problem that the filter is unstable due to the setting of the convex groove.

[0035] A rotating groove is provided on the sliding seat 33, and a rotating shaft 34 bearing is fitted and installed in the rotating groove. A rotating shaft 34 is fitted at the center of the rotating seat 35, and the rotating shaft 34 is rotatably sleeved in the rotating shaft 34 bearing.

[0036] A limiting plate 36 is fitted and installed at one end of the rotating shaft 34 close to the sliding seat 33, and a number of fixing holes are arrayed on the sliding seat 33 and the limiting plate 36. Each fixing hole is fitted with a limiting pin 37. By setting the limiting plate 36 on the rotating shaft 34, when rotated to the appropriate angle, the base 21 is fixed by cooperating with the fixing hole and the limiting pin 37, and prevent the problem that the fixed filter shakes during the test, resulting in the loosening of the interface 5.

[0037] By setting the slide rail 32 on the test platform 1, the filter can move back and forth on the test platform 1, move to the vicinity of the position where the interface 5 needs to be carried out, and by setting the rotating seat 35, the filter is rotated, so that the position of the interface 5 on the filter corresponds to the position of the interface 5 on the test platform 1 at a more appropriate angle, reducing the addition of leads and making the wiring clearer.

[0038] When the utility model is in use, prepare the filter to be tested, select the interface 5 according to the model of the filter. After determining the position of the interface 5 on the test platform 1, push the sliding seat 33 through the electro-hydraulic push rod 4, so that the sliding seat 33 moves on the slide rail 32. After moving to the position where the interface 5 is needed, stop pushing. Place the base pad matching the filter model on the base 21, place the filter on the base pad, and rotate the rotating turntables 24 on both sides of the filter to make the rotating rods 23 move inward, driving the clamping plates 25 to clamp the filter. At the same time, the positioning sliders at the bottom of the clamping plates 25 slide in the positioning grooves 26, making the clamping plates 25 clamp the filter more stably. Then rotate the base 21, the rotating shaft 34 rotates in cooperation with the rotating shaft 34 bearing. After rotating to the appropriate angle, use the limiting pin 37 for positioning, and then carry out wiring after completion.

[0039] Based on the ideal embodiments of the present utility model as inspiration, through the above description, relevant personnel can completely make various changes and modifications without departing from the technical idea of this utility model. The technical scope of this utility model is not limited to the content in the specification, and the technical scope must be determined according to the scope of the claims.

Claims

1. A universal test fixture for multiple filter models, comprising: A test platform (1), a clamping assembly (2) mounted on the test platform (1), and a moving assembly (3) arranged in cooperation with the clamping assembly (2), characterized in that: The test platform (1) is provided with a plurality of interfaces (5) in an array around the periphery thereof, and the clamping assembly (2) is provided on one side of the test platform (1), and the clamping assembly (2) comprises: a base (21), fixed seats (22) symmetrically provided on both sides of the base (21), and a rotating rod (23) provided on each of the fixed seats (22); one end of the rotating rod (23) is fixedly connected to a clamping plate (25), and an end of the rotating rod (23) away from the clamping plate (25) is fixedly mounted with a rotating truncated table (24); The moving assembly (3) is arranged below the base (21), and the moving assembly (3) includes: a plurality of slide rails (32), a sliding seat (33) arranged on the slide rails (32), and a rotating seat (35) installed on the sliding seat (33); the rotating seat (35) is arranged below the base (21), and the rotating seat (35) is fixedly connected to the base (21).

2. The universal test fixture for multiple filter models according to claim 1, characterized in that: Each of the fixing seats (22) is provided with a circular hole, a threaded barrel (27) is fitted in the circular hole, and the rotating rod (23) is fitted in the threaded barrel (27).

3. The universal test fixture for multiple filter models according to claim 1, characterized in that: The test platform (1) is provided with a plurality of slide grooves, the slide rails (32) are cooperatively installed in the slide grooves, and the plurality of slide rails (32) are symmetrically arranged in an array on the test platform (1).

4. The universal test fixture for multiple filter models according to claim 1, characterized in that: An electro-hydraulic push rod (4) is installed at one end of the test platform (1), and the output end of the electro-hydraulic push rod (4) is fixedly connected to the sliding seat (33).

5. The universal test fixture for multiple filter models according to claim 1, characterized in that: A plurality of positioning grooves (26) are symmetrically provided on the base (21), the positioning grooves (26) are arranged below the clamping plate (25), and a plurality of positioning slide blocks are provided on an end surface of the bottom of the clamping plate (25) close to the positioning grooves (26).

6. The universal test fixture for multiple filter models according to claim 5, characterized in that: The positioning groove (26) is configured as a convex groove structure, and the positioning slider is configured as a convex structure, and the positioning slider is cooperatively arranged in the positioning groove (26).

7. The universal test fixture for multiple filter models according to claim 1, characterized in that: The sliding seat (33) is provided with a rotation groove, and a rotating shaft (34) is fitted in the rotation groove.

8. The universal test fixture for multiple filter models according to claim 7, characterized in that: A rotating shaft (34) is provided in cooperation with the center of the rotating seat (35), and the rotating shaft (34) is rotatably sleeved in the rotating shaft (34) bearing.

9. The universal test fixture for multiple filter models according to claim 8, characterized in that: A limiting plate (36) is mounted on one end of the rotating shaft (34) close to the sliding seat (33), and a plurality of fixing holes are arranged in an array on the limiting plate (36) and the sliding seat (33), and each of the fixing holes is provided with a limiting latch (37).

10. The universal test fixture for multiple filter models according to claim 1, characterized in that: An anti-slip pad (28) is provided on one end surface of the clamping plate (25).

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