A filter test fixture that is easy to adjust

Abstract

The application discloses a filter test fixture convenient to adjust, and particularly relates to the technical field of test fixtures.The interval between the first clamping plate and the second clamping plate can be adjusted by adjusting the sleeve to slide on the supporting strip, so that the test clamping operation of different models of filters can be satisfied by the interval adjustment between the first clamping plate and the second clamping plate.Secondly, during clamping, the first electric push rod is elongated to move, so that the adjustable elastic clamping assembly is extruded by the inclined plane plate to move, so that the adjustable elastic clamping assembly can complete the automatic clamping operation of the filter, the filter test is more convenient, and the automatic clamping and the adjustment mode are not conflicted with each other, so that the test fixture can satisfy the positioning of filters of various models, different test fixtures do not need to be invested, and therefore, the production cost can be reduced, and the subsequent disassembly and replacement operation can be avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of test fixture, more particularly, the present application relates to a filter test fixture convenient to adjust. BACKGROUND

[0002] The filter as a signal selector is essential in the use of communication equipment, especially the medium filter with low loss, small size and stable temperature characteristics is more and more favored by equipment operation, but at the same time, the cost control requirement of the medium filter manufacturer in the whole industry is more stringent, and the type of communication system is various, and the use of frequency conversion technology makes the common frequency of filter more and more, and the model is more and more.

[0003] The produced filter needs to be analyzed for impedance, which is usually carried out on an impedance analyzer. When the impedance analysis is carried out, the filter needs to be clamped, and then the power supply is turned on for testing. Since the models of the filter are various at present, and most of them correspond to one test fixture, the manufacturer often invests more in test fixtures, which increases the production cost. Especially for the products in the research and development stage, a new model needs to be designed with a corresponding test fixture, which is a great obstacle to the timeliness of product development. SUMMARY

[0004] In order to overcome the above defects, the present application provides a filter test fixture convenient to adjust, and the technical problems to be solved by the present application are that in the prior art, most of the filters correspond to one test fixture during testing, but the manufacturer often invests more in test fixtures, which increases the production cost.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a filter test fixture convenient to adjust, comprising an assembly plate, two detection adjusting mechanisms are symmetrically fixed and installed above the assembly plate, two fixed plates are symmetrically fixed and installed above the assembly plate, a supporting table is arranged between the two fixed plates, an adjustable elastic clamping assembly is arranged on the supporting table, a second clamping plate is installed at the side corner above the supporting table, a connecting block is fixedly connected to the lower middle part of the supporting table, one side of the connecting block is fixedly connected with a first electric push rod, the first electric push rod penetrates through and is installed on the fixed plate, a slope plate is fixedly connected to the upper part of the assembly plate, and the slope plate is slidably connected with the adjustable elastic clamping assembly.

[0006] As a further scheme of the present application: two guide sliding cylinders are symmetrically connected and fixed below the supporting table, the two guide sliding cylinders are respectively slidably arranged on two fixed rods, and the two ends of the two fixed rods are respectively fixedly connected with the opposite surfaces of the two fixed plates.

[0007] As a further scheme of the present application: the adjustable elastic clamping assembly comprises a support strip, a roller is fixedly connected to one end of the support strip close to the inclined panel, the roller is in sliding connection with the inclined panel, an adjusting sleeve is slidably sleeved on the outside of the support strip, and the adjusting sleeve is locked on the support strip through bolts.

[0008] As a further scheme of the present application: a fixed column is fixedly connected to the upper portion of the adjusting sleeve, a movable sleeve is fixedly connected to the top end of the fixed column, a first clamping plate is fixedly connected to the upper portion of the movable sleeve, and the position of the first clamping plate corresponds to the position of the second clamping plate.

[0009] As a further scheme of the present application: the movable sleeve is slidably sleeved on a connecting rod, the two ends of the connecting rod are fixedly connected to the two side walls of an opening, the opening is obliquely arranged on the support table, a spring is fixedly connected to the side wall of the opening, one end of the spring away from the side wall of the opening is fixedly connected to the movable sleeve, and the spring is sleeved on the connecting rod.

[0010] As a further scheme of the present application: the detection adjusting mechanism comprises two support plates, a longitudinal adjusting assembly and a transverse adjusting assembly, the two support plates are fixedly connected to the upper portion of the assembly plate, and a second electric push rod is installed through the upper portions of the two support plates.

[0011] As a further scheme of the present application: the longitudinal adjusting assembly comprises a connecting strip, one side of the connecting strip is fixedly connected to the telescopic ends of two first electric push rods, two support columns are fixedly connected to the lower portions of the first electric push rods in a symmetrical mode, adjusting cylinders are slidably sleeved on the two support columns, and the two adjusting cylinders are locked on the two support columns through second adjusting bolts.

[0012] As a further scheme of the present application: the transverse adjusting assembly comprises two guide strips, the two ends of the two guide strips are fixedly connected between the two adjusting cylinders, the two guide strips are in sliding connection with two guide openings, the two guide openings are arranged on the upper and lower surfaces of the movable plate respectively, a detection contact is embeddedly installed on the movable plate, a support is fixedly connected to the lower portion of the movable plate, a first adjusting bolt is threadedly connected to the support, and the first adjusting bolt is locked on the guide strip towards the upper end.

[0013] The present application has the following beneficial effects:

[0014] 1. This invention allows for adjustment of the distance between the first and second clamping plates by sliding the adjustable sleeve on the support bar. This adjustment of the distance between the first and second clamping plates can accommodate the testing and clamping of different filter models. Furthermore, during clamping, the extension movement of the first electric push rod causes the adjustable elastic clamping component to move under the pressure of the inclined plate, thus enabling the adjustable elastic clamping component to automatically clamp the filter, making filter testing more convenient. Moreover, the automatic clamping and adjustment methods do not conflict with each other, allowing the test fixture to meet the positioning of various filter models without the need for different test fixtures. This not only reduces production costs but also avoids the troublesome operation of subsequent disassembly and replacement.

[0015] 2. This invention allows the adjusting cylinder to slide up and down on the surface of the support column, enabling smooth adjustment of the cylinder's position on the support column. This allows for adjustment of the vertical position of the detection contact. The second adjusting bolt is then rotated and locked onto the support column, fixing the position of the detection contact. Furthermore, the movable plate slides along the guide rail via a wire opening, allowing for left-right adjustment of the detection contact. The first adjusting bolt is then locked onto the guide rail, locking the position of the movable plate. This allows for multi-directional adjustment of the detection contact in both longitudinal and lateral directions, accommodating the detection positions of different filter models and facilitating filter testing. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0017] Figure 2 This is a three-dimensional structural diagram of the support platform of the present invention;

[0018] Figure 3 This is a three-dimensional structural diagram of the support platform of the present invention viewed from below.

[0019] Figure 4 This is a three-dimensional structural schematic diagram of the adjustable elastic clamping component of the present invention;

[0020] Figure 5 This is a three-dimensional structural schematic diagram of the detection and adjustment mechanism of the present invention;

[0021] Figure 6 This is a three-dimensional structural schematic diagram of the lateral adjustment component of the present invention;

[0022] In the diagram: 1 Assembly plate, 2 Sloping panel, 3 Detection and adjustment mechanism, 31 Support plate, 32 Second electric push rod, 33 Lateral adjustment assembly, 331 Movable plate, 332 Detection contact, 333 First adjustment bolt, 334 Guide bar, 34 Longitudinal adjustment assembly, 341 Connecting bar, 342 Support column, 343 Adjusting cylinder, 344 Second adjustment bolt, 4 Support platform, 5 Opening, 6 Fixed rod, 7 Fixed plate, 8 Adjustable elastic clamping assembly, 81 Support bar, 82 Roller, 83 Fixed column, 84 Adjusting sleeve, 85 Movable sleeve, 86 First clamping plate, 87 Spring, 88 Connecting rod, 9 Connecting block, 10 Guide slide, 11 First electric push rod, 12 Second clamping plate. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] like Figures 1-6 As shown, the present invention provides an easily adjustable filter testing fixture, including an assembly plate 1. Two detection and adjustment mechanisms 3 are symmetrically fixedly installed on the upper part of the assembly plate 1. The detection and adjustment mechanism 3 includes two support plates 31, a longitudinal adjustment component 34, and a transverse adjustment component 33. The two support plates 31 are fixedly connected to the upper part of the assembly plate 1. A second electric push rod 32 is installed through the upper part of the two support plates 31. The support plates 31 can fix the position of the second electric push rod 32, so that the position of the second electric push rod 32 is fixed, and the extension and retraction movement of the second electric push rod 32 can control the movement of the longitudinal adjustment component 34, so that the detection contact 332 is attached to the detection part of the filter. At this time, the detection contact 332 can cooperate with the external detection equipment to automatically detect the filter. This method can realize automatic insertion and removal, which facilitates the testing of the filter.

[0025] The longitudinal adjustment assembly 34 includes a connecting strip 341. One side of the connecting strip 341 is fixedly connected to the telescopic ends of two first electric push rods 11. Two support columns 342 are symmetrically connected and fixed below the first electric push rods 11. An adjusting cylinder 343 is slidably sleeved on each of the two support columns 342. The two adjusting cylinders 343 are locked on the two support columns 342 by a second adjusting bolt 344. The adjusting cylinders 343 can slide smoothly on the support column to adjust the vertical position of the detection contact 332. Then, by rotating the second adjusting bolt 344, they are locked on the support column 342, so that the position of the detection contact 332 can be fixed, and the detection contact 332 can meet the longitudinal adjustment requirements.

[0026] The lateral adjustment assembly 33 includes two guide bars 334, with both ends of the two guide bars 334 fixedly connected between two adjustment cylinders 343. The two guide bars 334 are slidably connected to two guide ports, which are respectively opened on the upper and lower sides of the movable plate 331. A detection contact 332 is embedded in the movable plate 331. A bracket is fixedly connected to the lower part of the movable plate 331, and a first adjusting bolt 333 is threadedly connected to the bracket. The first adjusting bolt 333 is locked to the upper end of the guide bar 334. The movable plate 331 slides on the guide bar 334 through the wire port, so that the detection contact 332 can be adjusted to the left and right positions. Furthermore, the first adjusting bolt 333 can be locked to the guide bar 334, so that the position of the movable plate 331 is locked, and the detection contact 332 can meet the lateral position adjustment. This can meet the detection position corresponding to different models of filters, which facilitates the detection of filters.

[0027] Two fixed plates 7 are symmetrically fixedly installed on the top of the assembly plate 1. A support platform 4 is provided between the two fixed plates 7. Two guide cylinders 10 are symmetrically connected and fixed below the support platform 4. The two guide cylinders 10 slide on two fixed rods 6 respectively. The two ends of the two fixed rods 6 are fixedly connected to the opposite surfaces of the two fixed plates 7 respectively. The fixed rods 6 can guide the guide cylinders 10, so that the guide cylinders 10 can slide smoothly on the fixed rods 6. The sliding sleeve can also support the support platform 4, so that the support platform 4 can move smoothly.

[0028] The support platform 4 is equipped with an adjustable elastic clamping assembly 8, and a second clamping plate 12 is installed at the side corner above the support platform 4. A connecting block 9 is fixedly connected to the lower center of the support platform 4. One side of the connecting block 9 is fixedly connected to the first electric push rod 11. The first electric push rod 11 is installed through the fixed plate 7. An inclined plate 2 is fixedly connected to the upper part of the assembly plate 1. The connecting block 9 serves to connect the support platform 4 and the first electric push rod 11, so that the extension and retraction movement of the first electric push rod 11 can control the displacement of the support platform 4, which can drive the roller 82 to slide on the inclined plate 2. Due to the inclined design of the inclined plate 2, the roller 82 can be squeezed to generate displacement when the roller 82 moves, so that the support bar 81 and the adjusting sleeve 84 move. Then, the first clamping plate 86 is driven to move through the fixed column 83 and the movable sleeve 85, so that the first clamping plate 86 can automatically clamp and position the filter, and maintain the filter stable test operation.

[0029] The inclined plate 2 is slidably connected to the adjustable elastic clamping assembly 8. The adjustable elastic clamping assembly 8 includes a support bar 81. A roller 82 is fixedly connected to one end of the support bar 81 near the inclined plate 2. The roller 82 is slidably connected to the inclined plate 2. The roller 82 has good rolling properties, which allows the roller 82 to move smoothly on the inclined plate 2, reducing friction and making the entire clamping operation of the filter smoother.

[0030] An adjusting sleeve 84 is slidably fitted on the outside of the support bar 81. The adjusting sleeve 84 is locked onto the support bar 81 by bolts. The support bar 81 can guide the adjusting sleeve 84, so that the adjusting sleeve 84 can slide and adjust on the support bar 81. This allows the distance between the first clamping plate 86 and the second clamping plate 12 to be adjusted. The position of the adjusting sleeve 84 can be locked by bolts to maintain the connection between the adjusting sleeve 84 and the support bar 81. Thus, by adjusting the distance between the first clamping plate 86 and the second clamping plate 12, the test clamping operation of different types of filters can be met.

[0031] A fixed post 83 is fixedly connected to the top of the adjusting sleeve 84. A movable sleeve 85 is fixedly connected to the top of the fixed post 83. A first clamping plate 86 is fixedly connected to the top of the movable sleeve 85. The position of the first clamping plate 86 corresponds to the position of the second clamping plate 12. The first clamping plate 86 and the second clamping plate 12 are L-shaped, so that they can fit against the diagonal position of the filter. Thus, the clamping and cooperation of the first clamping plate 86 and the second clamping plate 12 can play a role in stabilizing the positioning of the filter.

[0032] The movable sleeve 85 is slidably mounted on the connecting rod 88. The two ends of the connecting rod 88 are fixedly connected to the two side walls of the opening 5 respectively. The connecting rod 88 can guide the movable sleeve 85 to slide, so that the movable sleeve 85 can slide stably along the connecting rod 88, which can maintain the stable movement of the first clamping plate 86, prevent the first clamping plate 86 from deviating, and allow the first clamping plate 86 to smoothly clamp the filter.

[0033] The opening 5 is obliquely opened on the support platform 4. A spring 87 is fixedly connected to the side wall of the opening 5. The end of the spring 87 away from the side wall of the opening 5 is fixedly connected to the movable sleeve 85. The spring 87 is sleeved on the connecting rod 88. When the roller 82 moves towards the thin surface of the oblique panel 2, the elastic force of the spring 87 can generate elastic reset, so that the spring 87 drives the movable sleeve 85 to reset, so that the first clamping plate 86 can be reset smoothly, thereby automatically releasing the positioning of the filter and facilitating the removal of the filter.

[0034] Working principle of this invention:

[0035] During testing, firstly, the position of the adjusting sleeve 84 is moved, causing the fixed column 83 to move, which in turn causes the movable sleeve 85 to move, which in turn causes the first clamping plate 86 to move, making the distance between the first clamping plate 86 and the second clamping plate 12 adjustable. Then, the adjusting sleeve 84 is locked onto the support bar 81 by rotating the bolt. Next, the filter is placed on the support platform 4, and the first electric push rod 11 is extended, causing the connecting block 9 to move. The connecting block 9 then moves the support platform 4, which in turn moves the roller 82. The roller 82 moves on the inclined plate 2. Due to the increased thickness of the inclined plate 2, the roller 82 is pressed against the inclined plate 2, causing the roller 82 to move, which in turn moves the support bar 81 and the adjusting sleeve 84. The adjusting sleeve 84 then moves the fixed column 83 and the movable sleeve 85, which in turn moves the first clamping plate 86, making the distance between the first clamping plate 86 and the second clamping plate 12 adjustable. 86 clamps and positions the filter. After positioning, the vertical position of the adjusting cylinder 343 is moved so that it slides on the support column 342. The position of the adjusting cylinder 343 is locked by the second adjusting bolt 344, locking the vertical adjustment position of the detection contact 332. Then, the position of the movable plate 331 is adjusted so that it slides on the guide bar 334 through the guide port, allowing the detection contact 332 to be horizontally adjusted. After adjustment, the position of the movable plate 331 is locked by the first adjusting bolt 333, positioning the detection contact 332. After the detection contact 332 is adjusted, the two detection contacts 332 correspond to the detection parts of the filter. Then, the second electric push rod 32 is controlled to extend, causing the connecting bar 341 to move, so that the detection contact 332 fits against the detection part of the filter. At this time, the detection contact 332 can be used in conjunction with the external detection equipment to detect the filter.

[0036] After the filter test, the second electric push rod 32 is retracted, causing the connecting bar 341 to reset, which in turn causes the support column 342 and guide bar 334 to reset, separating the detection contact 332 from the filter. The first electric push rod 11 is then retracted, causing the support platform 4 to reset, gradually moving the roller 82 towards the thin surface of the inclined panel 2. At this point, the elastic force of the spring 87 generates an elastic reset, causing the spring 87 to reset the movable sleeve 85, which in turn resets the first clamping plate 86, separating it from the filter. The filter is then removed and reinserted for repeated testing.

[0037] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0038] Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other.

[0039] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fixture for filter testing, which is easy to adjust, comprising an assembly plate (1), characterized in that: The upper part of the assembly plate (1) is symmetrically provided with two detection adjusting mechanisms (3), the upper part of the assembly plate (1) is symmetrically provided with two fixed plates (7), a supporting table (4) is arranged between the two fixed plates (7), an adjustable elastic clamping assembly (8) is arranged on the supporting table (4), a second clamping plate (12) is arranged at the side corner of the upper part of the supporting table (4), a connecting block (9) is fixedly connected to the lower middle part of the supporting table (4), one side of the connecting block (9) is fixedly connected with a first electric push rod (11), the first electric push rod (11) penetrates through the fixed plate (7), and the upper part of the assembly plate (1) is fixedly connected with an inclined plate (2); the inclined plate (2) is in sliding connection with the adjustable elastic clamping assembly (8). The lower part of the supporting table (4) is symmetrically provided with two guide sliding cylinders (10), the two guide sliding cylinders (10) are respectively arranged in sliding connection with two fixed rods (6), the two ends of the two fixed rods (6) are fixedly connected with the opposite surfaces of the two fixed plates (7), the adjustable elastic clamping assembly (8) comprises a supporting strip (81), one end of the supporting strip (81) close to the inclined plate (2) is fixedly connected with a roller (82), the roller (82) is in sliding connection with the inclined plate (2), an adjusting sleeve (84) is slidably arranged on the outer part of the supporting strip (81), the adjusting sleeve (84) is locked on the supporting strip (81) through bolts, a fixed column (83) is fixedly connected to the upper part of the adjusting sleeve (84), a movable sleeve (85) is fixedly connected to the top of the fixed column (83), a first clamping plate (86) is fixedly connected to the upper part of the movable sleeve (85), and the position of the first clamping plate (86) corresponds to the position of the second clamping plate (12). The movable sleeve (85) is slidably arranged on a connecting rod (88), the two ends of the connecting rod (88) are fixedly connected with the two side walls of an opening (5), the opening (5) is obliquely arranged on the supporting table (4), a spring (87) is fixedly connected to the side wall of the opening (5), one end of the spring (87) away from the side wall of the opening (5) is fixedly connected with the movable sleeve (85), and the spring (87) is arranged on the connecting rod (88).

2. The easily adjustable filter test fixture of claim 1, wherein: The detection adjusting mechanism (3) comprises two supporting plates (31), a longitudinal adjusting assembly (34) and a transverse adjusting assembly (33), the two supporting plates (31) are fixedly connected to the upper part of the assembly plate (1), and the upper part of the two supporting plates (31) penetrates through a second electric push rod (32).

3. The easily adjustable filter test fixture of claim 2, wherein: The longitudinal adjusting assembly (34) comprises a connecting strip (341), one side of the connecting strip (341) is fixedly connected with the telescopic ends of two first electric push rods (11), the lower part of the first electric push rod (11) is symmetrically provided with two supporting columns (342), an adjusting cylinder (343) is slidably arranged on each of the two supporting columns (342), and the two adjusting cylinders (343) are locked on the two supporting columns (342) through second adjusting bolts (344).

4. The easily adjustable filter test fixture of claim 3, wherein: The transverse adjusting assembly (33) comprises two guide strips (334), two ends of the two guide strips (334) are fixedly connected between two adjusting cylinders (343), the two guide strips (334) are slidably connected with two guide ports, the two guide ports are respectively arranged on upper and lower surfaces of a movable plate (331), a detection contact (332) is embedded and arranged on the movable plate (331), a support is fixedly connected below the movable plate (331), a first adjusting bolt (333) is threadedly connected on the support, and the first adjusting bolt (333) is locked on the guide strip (334) towards an upper end.

Images