Clamp for testing power amplifier circuit board

Abstract

The utility model discloses a clamp for testing a power amplifier circuit board. The clamp comprises a bottom plate, a profiling positioning seat, a guide plate, a lifting driving mechanism, a lifting plate and a pressing and fixing assembly, the profiling positioning seat is detachably connected with the bottom plate through screws, a vertical sliding groove is formed in the guide plate, a testing assembly is arranged at the bottom of the lifting plate, a sliding block connected with the vertical sliding groove is arranged at one end of the lifting plate, and the sliding block penetrates through the vertical sliding groove and is connected with the output end of the lifting driving mechanism. The pressing and fixing assembly comprises two guide sleeves located on the two sides of the testing assembly respectively, the guide sleeves are detachably connected with the lifting plate through screws, pressing rods are movably arranged in the guide sleeves in a penetrating mode, pressing blocks are arranged at the bottom ends of the pressing rods, springs arranged on the pressing rods in a sleeving mode are connected between the pressing blocks and the guide sleeves, and the top ends of the pressing rods penetrate through the lifting plate and are provided with limiting blocks. The lifting plate is provided with an adjusting hole for the pressing rod to penetrate through. The clamp for testing the power amplifier circuit board is convenient to operate, and effectively improves the testing efficiency, so that the practicability can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of clamps for power amplifier circuit board test. BACKGROUND

[0002] Power amplifier is the abbreviation of power amplifier, commonly known as "amplifier", is the most basic equipment in sound system, its task is to weak electrical signal from signal source is amplified to drive speaker to emit sound.Power amplifier circuit board is the core element of power amplifier, power amplifier circuit board has multiple input and output, when testing, clamp is needed to position and fix circuit board.

[0003] But the clamp for testing power amplifier circuit board, when positioning and fixing circuit board, operation is too complicated, time is wasted and efficiency is reduced, and practicality cannot be improved. Therefore, corresponding technical solutions need to be designed to solve the above problems. SUMMARY

[0004] The utility model aims at providing a kind of clamp for power amplifier circuit board test, its structure is reasonable, easy to operate, effectively improve the test efficiency, so that practicality can be improved.

[0005] To achieve the above object, the technical scheme of the utility model is to design a kind of clamp for power amplifier circuit board test, including bottom plate, profiling positioning seat, guide plate, lifting drive mechanism, lifting plate and compression fixed component;

[0006] Profiling positioning seat, guide plate and lifting drive mechanism are arranged on the top of bottom plate, the guide plate is located between profiling positioning seat and lifting drive mechanism, the profiling positioning seat is detachably connected with bottom plate by screw, and the top of profiling positioning seat is provided with profiling positioning groove, the guide plate is provided with vertical sliding slot, the output end of lifting drive mechanism is upwardly arranged, the lifting plate is arranged above profiling positioning seat, the bottom of the lifting plate is provided with test assembly, and one end of the lifting plate is provided with sliding block connected with vertical sliding slot, the sliding block penetrates vertical sliding slot and is connected with the output end of lifting drive mechanism, the compression fixed component includes two guide sleeves respectively located on the two sides of test assembly, the two guide sleeves are detachably connected with lifting plate by screw, and pressure rod is movably arranged in the two guide sleeves respectively, the bottom end of pressure rod is provided with pressing block, the pressing block is located below test assembly, and spring is arranged on pressure rod between pressing block and guide sleeve, the top end of pressure rod penetrates lifting plate and is provided with limiting block, the lifting plate is provided with adjusting hole for pressure rod to penetrate.

[0007] Preferably, the adjusting hole includes longitudinal adjusting hole, and a plurality of transverse adjusting holes communicated with the longitudinal adjusting hole.

[0008] Preferably, the bottom of the pressing block is provided with flexible pad.

[0009] Preferably, the top of the bottom plate is provided with a guide rod, the guide rod is located between the profiling positioning seat and the guide plate, and the top end of the guide rod penetrates the lifting plate.

[0010] Preferably, the lifting driving mechanism is a hydraulic cylinder or a pneumatic cylinder.

[0011] The power amplifier circuit board testing clamp has the advantages of reasonable structure, convenient operation, improved test efficiency, and improved practicability.

[0012] Moreover, the profiling positioning seat is detachably connected with the bottom plate, so that the profiling positioning seat can be replaced to position different models and specifications of power amplifier circuit boards; the guide sleeve is detachably connected with the lifting plate, and the adjusting hole is arranged on the lifting plate, so that the position of the pressing rod and the pressing block can be adjusted to adjust the pressing position of the power amplifier circuit board. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a schematic view of the present application.

[0014] Figure 2 is a schematic view of the lifting plate in the present application. DETAILED DESCRIPTION

[0015] The specific embodiments of the present application will be further described below in combination with the drawings and examples. The following examples are only used to more clearly illustrate the technical solutions of the present application, and cannot be used to limit the protection scope of the present application.

[0016] The technical solutions of the specific embodiments of the present application are:

[0017] As shown in Figure 1 and Figure 2 A power amplifier circuit board testing clamp, comprising a bottom plate 1, a profiling positioning seat 2, a guide plate 3, a lifting driving mechanism 4, a lifting plate 5 and a pressing and fixing assembly.

[0018] The profiling positioning seat 2, the guide plate 3 and the lifting driving mechanism 4 are arranged on the top of the bottom plate 1, the guide plate 3 is located between the profiling positioning seat 2 and the lifting driving mechanism 4, the profiling positioning seat 2 is detachably connected with the bottom plate 1 through screws, and the top of the profiling positioning seat 2 is provided with a profiling positioning groove, the guide plate 3 is provided with a vertical sliding groove, the output end of the lifting driving mechanism 4 is arranged upwards, the lifting plate 5 is arranged above the profiling positioning seat 2, the bottom of the lifting plate 5 is provided with a test assembly 6, and one end of the lifting plate 5 is provided with a sliding block 7 connected with the vertical sliding groove, the sliding block 7 penetrates through the vertical sliding groove and is connected with the output end of the lifting driving mechanism 4, the compression fixing assembly comprises two guide sleeves 8 located on the two sides of the test assembly 6 respectively, the two guide sleeves 8 are detachably connected with the lifting plate 5 through screws respectively, and a compression rod 9 is movably arranged in each of the two guide sleeves 8, the bottom end of the compression rod 9 is provided with a pressing block 10, the pressing block 10 is located below the test assembly 6, and a spring 11 sleeved on the compression rod 9 is connected between the pressing block 10 and the guide sleeve 8, and the top end of the compression rod 9 penetrates through the lifting plate 5 and is provided with a limiting block 12, and the lifting plate 5 is provided with an adjusting hole through which the compression rod 9 penetrates.

[0019] By adopting the above scheme, the power amplifier circuit board testing clamp has the following advantages: the power amplifier circuit board 100 to be tested is placed in the profiling positioning groove of the profiling positioning seat 2, the lifting plate 5 is driven to move downwards by the lifting driving mechanism 4, the test assembly 6 and the compression fixing assembly are driven to move downwards by the lifting plate 5, the pressing block 10 of the compression fixing assembly first contacts the power amplifier circuit board 100, the spring 11 is compressed as the lifting plate 5 continues to move downwards, the pressing block 10 is compressed and fixed to the power amplifier circuit board 100 by the elastic force of the spring 11, then the test assembly 6 contacts and tests the power amplifier circuit board 100, after the test is completed, the lifting plate 5 is driven to move upwards and reset by the lifting driving mechanism 4, the test assembly 6 and the pressing block 10 are separated from the power amplifier circuit board 100 in sequence, and finally the tested power amplifier circuit board 100 is taken out.

[0020] Further, the adjusting hole comprises a longitudinal adjusting hole 13 and a plurality of transverse adjusting holes 14 in communication with the longitudinal adjusting hole 13. By adopting the above scheme, the positions of the compression rod 9 and the pressing block 10 can be adjusted, and thus the compression position of the power amplifier circuit board 100 can be adjusted.

[0021] Further, the bottom of the pressing block 10 is provided with a flexible pad 15. By adopting the above scheme, the flexible pad 15 contacts the power amplifier circuit board 100, so that the power amplifier circuit board 100 is prevented from being pressed and damaged.

[0022] Further, the top of the bottom plate 1 is provided with a guide rod 16, the guide rod 16 is located between the profiling positioning seat 2 and the guide plate 3, and the top end of the guide rod 16 penetrates through the lifting plate 5. By adopting the above scheme, the stability of the lifting plate 5 during movement is improved.

[0023] Further, the lifting driving mechanism 4 is a hydraulic cylinder or a pneumatic cylinder.

[0024] It should be noted that the test assembly 6 in the utility model is prior art, and its specific form has multiple choices and does not serve as the invention point of the utility model, and will not be described in detail here.

[0025] The preferred embodiments of the utility model are described above, and it should be noted that, for ordinary skilled persons in the art, without departing from the technical principles of the utility model, a number of improvements and refinements can be made, and these improvements and refinements should also be considered within the protection scope of the utility model.

Claims

1. A fixture for testing power amplifier circuit boards, characterized in that, The device comprises a base plate, a profiling positioning seat, a guide plate, a lifting driving mechanism, a lifting plate and a pressing fixing assembly. The profiling positioning seat, the guide plate and the lifting driving mechanism are arranged on the top of the base plate, the guide plate is located between the profiling positioning seat and the lifting driving mechanism, the profiling positioning seat is detachably connected with the base plate through screws, the top of the profiling positioning seat is provided with a profiling positioning groove, the guide plate is provided with a vertical sliding slot, the output end of the lifting driving mechanism is arranged upward, the lifting plate is arranged above the profiling positioning seat, the bottom of the lifting plate is provided with a testing assembly, one end of the lifting plate is provided with a sliding block connected with the vertical sliding slot, the sliding block penetrates through the vertical sliding slot and is connected with the output end of the lifting driving mechanism, the pressing fixing assembly comprises two guide sleeves located on the two sides of the testing assembly respectively, the two guide sleeves are detachably connected with the lifting plate through screws, a pressing rod is movably arranged in each of the two guide sleeves, the bottom end of the pressing rod is provided with a pressing block, the pressing block is located below the testing assembly, a spring is arranged between the pressing block and the guide sleeve and surrounds the pressing rod, the top end of the pressing rod penetrates through the lifting plate and is provided with a limiting block, the lifting plate is provided with an adjusting hole through which the pressing rod penetrates.

2. The test fixture of claim 1, wherein The adjusting hole comprises a longitudinal adjusting hole and a plurality of transverse adjusting holes communicated with the longitudinal adjusting hole.

3. The power amplifier board test fixture of claim 1, wherein The bottom of the pressing block is provided with a flexible pad.

4. The power amplifier board test fixture of claim 1, wherein The top of the base plate is provided with a guide rod, the guide rod is located between the profiling positioning seat and the guide plate, and the top end of the guide rod penetrates through the lifting plate.

5. The power amplifier board test fixture of claim 1, wherein The lifting driving mechanism is a hydraulic cylinder or a pneumatic cylinder.

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