A test mechanism for use within an acoustic test chamber

Abstract

The utility model relates to acoustics test technical field, the technical problem that the utility model wants to solve is that test procedure is more complicated, spends time. In order to solve above technical problem, the utility model provides a kind of testing mechanism for inside acoustic test box. The utility model includes: test motor;Transmission shaft is connected in the output end of test motor;Jig assembly, locate in the side of test motor;The jig base of jig assembly is connected with acoustic test box;Product clamp is slidably connected in the top of jig base;The front side of product clamp is equipped with profiling groove;The rear side of profiling groove is equipped with the via for transmission shaft to set up;Two side walls of profiling groove are equipped with limit slot, and the wing on product is located in limit slot;The front end of limit slot is equipped with guide surface;Reset part is connected in the rear side of jig base, and reset part is used to drive product clamp to slide to approach test motor, for driving product clamp to slide reset. The utility model improves efficiency, reduces artificial cost.

Description

Technical Field

[0001] This utility model relates to the field of acoustic testing technology, and in particular to a testing mechanism for use in an acoustic testing chamber. Background Technology

[0002] When testing rotating products in an acoustic testing chamber, a motor is needed to drive the drive shaft to rotate the product. The alignment holes on these products that connect with the drive shaft are mostly square holes. Due to the limitations of the fixture, it is difficult to align the product with the drive shaft. Often, the product line needs to be placed on the fixture, then the drive shaft needs to be removed and aligned with the alignment holes on the product before the drive shaft is put back for testing. The testing process is cumbersome and time-consuming. Utility Model Content

[0003] Therefore, the technical problem to be solved by this utility model is to overcome the above-mentioned problems existing in the prior art.

[0004] To solve the above-mentioned technical problems, this utility model provides a testing mechanism for use in an acoustic testing chamber, comprising:

[0005] The test motor is connected inside the acoustic test chamber;

[0006] A drive shaft is connected to the output end of the test motor, and a mating shaft is provided at the end of the drive shaft;

[0007] A fixture assembly is located on one side of the test motor. The fixture assembly includes a fixture base, a product fixture, a sliding part, and a reset part. The fixture base is connected to the acoustic test chamber. The product fixture is slidably connected to the top of the fixture base via the sliding part. The front side of the product fixture has a contour groove for mounting the product. The rear side of the contour groove has a through hole for the drive shaft to pass through, and the through hole communicates with the contour groove. The two side walls of the contour groove have limiting grooves, and the wings on the product are located in the limiting grooves. The front end of the limiting groove has a guide surface. The reset part is connected to the rear side of the fixture base and is used to drive the product fixture to slide closer to the test motor and to drive the product fixture to slide and reset.

[0008] In one embodiment of the present invention, the reset part includes a spring base and a spring; the spring base is connected to the clamp base and is located behind the product clamp; the spring is connected between the spring base and the product clamp.

[0009] In one embodiment of this utility model, the product clamp is provided with a mounting hole on the rear side; the reset part also includes a spring pin, which is provided in a one-to-one correspondence with the spring; one end of the spring pin is connected to the spring base; the other end of the spring pin is connected to the mounting hole; and the spring is sleeved on the spring pin.

[0010] In one embodiment of this utility model, the application further includes at least one limiting pin, which is connected to the top of the fixture base; the limiting pin abuts against the front sidewall of the product fixture. In some embodiments, there are two limiting pins.

[0011] In one embodiment of this utility model, the sliding part includes a guide rail and a slider; the guide rail is connected to the fixture base; the slider is connected to the bottom of the product fixture; the guide rail and the slider are slidably connected.

[0012] In one embodiment of this utility model, the top of the clamp base is provided with a base mounting groove; the bottom of the product clamp is provided with a clamp mounting groove; the guide rail is installed in the base mounting groove, and the slider is installed in the clamp mounting groove; there is a gap between the lower surface of the product clamp and the upper surface of the clamp base.

[0013] In one embodiment of this utility model, the top of the contour groove is provided with an opening.

[0014] In one embodiment of this utility model, this application further includes a pair of through-beam photoelectric sensors; the pair of through-beam photoelectric sensors are disposed on the fixture base; the through-beam photoelectric sensors are projected onto the product.

[0015] In one embodiment of this utility model, the fixture base is provided with an oblong hole; the oblong hole extends along the axial direction of the drive shaft; the oblong hole is connected to the acoustic test box by bolts. In some embodiments, connecting brackets are symmetrically provided on both sides of the fixture base; a through-beam photoelectric sensor is connected to the connecting bracket.

[0016] In one embodiment of the present invention, the clamp assembly further includes multiple layers of gaskets; the multiple layers of gaskets are disposed at the bottom of the clamp base.

[0017] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:

[0018] The testing mechanism for use in an acoustic testing chamber, as described in this utility model, first slides the product clamp towards the test motor via a reset part. At this point, the drive shaft is exposed after passing through a through hole. The product is then held and aligned with the drive shaft. The reset part then slides the product clamp forward to reset, thus confining the product within the contour groove of the product clamp and the wings within the limiting groove, facilitating subsequent testing. Therefore, this application achieves rapid alignment between the drive shaft and the product without disassembling the drive shaft, simplifying operation, increasing efficiency, and reducing labor costs. Attached Figure Description

[0019] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0020] Figure 1 This is a schematic diagram of the structure of a testing mechanism used in an acoustic testing chamber according to a preferred embodiment of the present invention;

[0021] Figure 2 yes Figure 1 The diagram shown illustrates the structure of the test mechanism within the acoustic test chamber, excluding the test motor.

[0022] Figure 3 yes Figure 1 The diagram shown is a schematic representation of the fixture assembly in the test mechanism used within the acoustic test chamber, taken from one perspective.

[0023] Figure 4 yes Figure 1 A schematic diagram of the fixture assembly in the test mechanism used in the acoustic test chamber, shown from another perspective;

[0024] Figure 5 yes Figure 1 The diagram shows the connection between the fixture base and the product fixture in the testing mechanism used in the acoustic testing chamber.

[0025] Instruction manual illustration markings: 100, test motor;

[0026] 200. Drive shaft;

[0027] 300. Fixture assembly; 310. Fixture base; 311. Base mounting slot; 312. Waist-shaped hole; 320. Product fixture; 321. Contouring groove; 322. Through hole; 323. Limiting groove; 324. Guide surface; 325. Mounting hole; 326. Fixture mounting slot; 327. Opening; 328. Clearance hole; 330. Sliding part; 331. Guide rail; 332. Slider; 340. Reset part; 341. Spring base; 342. Spring; 343. Spring pin; 350. Washer;

[0028] 400. Product; 410. Wings;

[0029] 500, limit pin;

[0030] 600. Through-beam photoelectric sensor; 610. Connecting bracket. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0032] It should be noted that, along the axial direction of the drive shaft 200, the test motor 100 is located on the rear side of the drive shaft 200; the fixture assembly 300 is located on the front side of the drive shaft 200.

[0033] Reference Figures 1-5 As shown, this embodiment of the utility model provides a testing mechanism for use in an acoustic testing chamber, comprising:

[0034] Test motor 100 is connected to the base plate or telescopic tooling plate inside the acoustic test chamber;

[0035] The drive shaft 200 is connected to the output end of the test motor 100, and the end of the drive shaft 200 is provided with a docking shaft;

[0036] A fixture assembly 300 is located on one side of the test motor 100. The fixture assembly 300 includes a fixture base 310, a product fixture 320, a sliding part 330, and a reset part 340. The fixture base 310 is connected to the base plate or telescopic tooling plate inside the acoustic testing chamber. The product fixture 320 is slidably connected to the top of the fixture base 310 via the sliding part 330. A contour groove 321 is provided on the front side of the product fixture 320 to mount the product 400. A contour groove 321 is provided on the rear side of the contour groove 321. A through hole 322 is provided for the drive shaft 200 to pass through, and the through hole 322 is connected to the contour groove 321; the two side walls of the contour groove 321 are provided with limiting grooves 323, and the wings 410 on the product 400 are located in the limiting grooves 323; the front end of the limiting groove 323 is provided with a guide surface 324; the reset part 340 is connected to the rear side of the fixture base 310, and the reset part 340 is used to drive the product fixture 320 to slide close to the test motor 100 and to drive the product fixture 320 to slide and reset.

[0037] Specifically, in this embodiment, the product clamp 320 is first slid towards the test motor 100 via the reset part 340. At this time, the drive shaft 200 is exposed after passing through the through hole 322. The product 400 is then held and docked with the drive shaft 200. Then, under the action of the reset part 340, the product clamp 320 slides forward and resets, thereby confining the product 400 in the contour groove 321 of the product clamp 320 and confining the wings 410 in the limiting groove 323, which facilitates subsequent testing. Therefore, this application achieves quick docking of the drive shaft 200 and the product 400 without disassembling the drive shaft 200, making the operation simple and quick, improving efficiency, and reducing labor costs.

[0038] Further, the reset part 340 includes a spring base 341 and a spring 342; the spring base 341 is connected to the clamp base 310 and is located behind the product clamp 320; the spring 342 is connected between the spring base 341 and the product clamp 320. In some embodiments, there are two springs 342, and the two springs 342 are disposed on both sides of the sliding part 330.

[0039] Specifically, in this embodiment, by pulling (manually operating) the spring base 341, the product clamp 320 is brought closer to the test motor 100, during which the spring 342 is gradually compressed. Once the product 400 is properly aligned with the drive shaft 200, the product clamp 320 is released, and under the action of the spring 342, the product clamp 320 is driven to reset. This application features a simple structure, requires no complex automated components, has a more stable structure, and is low in cost.

[0040] Furthermore, the product fixture 320 has a mounting hole 325 on its rear side; the reset part 340 also includes a spring pin 343, which is configured to correspond one-to-one with the spring 342; one end of the spring pin 343 is connected to the spring base 341; the other end of the spring pin 343 is connected to the mounting hole 325; and the spring 342 is sleeved on the spring pin 343.

[0041] Specifically, the spring pin 343 in this embodiment can guide the deformation of the spring 342, preventing adverse situations such as bending during deformation.

[0042] Furthermore, this application also includes at least one limiting pin 500, which is connected to the top of the clamp base 310; the limiting pin 500 abuts against the front sidewall of the product clamp 320. In some embodiments, there are two limiting pins 500.

[0043] Specifically, in this embodiment, the product fixture 320 is limited by the limit pin 500 when it is reset, so as to prevent it from moving too far.

[0044] Furthermore, the sliding part 330 includes a guide rail 331 and a slider 332; the guide rail 331 is connected to the fixture base 310; the slider 332 is connected to the bottom of the product fixture 320; the guide rail 331 and the slider 332 are slidably connected.

[0045] Specifically, in this embodiment, the sliding part 330 makes the product clamp 320 slide more smoothly on the clamp base 310, while also guiding the sliding of the product clamp 320.

[0046] Furthermore, the top of the fixture base 310 is provided with a base mounting groove 311; the bottom of the product fixture 320 is provided with a fixture mounting groove 326; the guide rail 331 is installed in the base mounting groove 311, and the slider 332 is installed in the fixture mounting groove 326; there is a gap between the lower surface of the product fixture 320 and the upper surface of the fixture base 310.

[0047] Specifically, in this embodiment, the guide rail 331 and the slider 332 are installed through the base mounting groove 311 and the clamp mounting groove 326 respectively, thereby ensuring a compact and stable structure while maintaining a certain gap between the product clamp 320 and the clamp base 310 to avoid friction caused by contact between the two, which would affect the sliding of the product clamp 320 on the clamp base 310.

[0048] Furthermore, the top of the contour groove 321 is provided with an opening 327.

[0049] Specifically, the opening 327 is designed to facilitate the rapid docking of the drive shaft 200 and the product 400 by rotating the product 400 when docking. After docking, the product 400 is rotated to a horizontal position (the front end of the drive shaft 200 is a flexible structure that can rotate), so that when the product 400 is reset, the product 400 can enter the contour groove 321 and the wings 410 can enter the limiting groove 323.

[0050] Furthermore, this application also includes a pair of through-beam photoelectric sensors 600; the pair of through-beam photoelectric sensors 600 are disposed on the fixture base 310; the through-beam photoelectric sensors 600 are projected onto the product 400. In some embodiments, along the axial direction of the drive shaft 200, two clearance holes 328 are provided on the two side walls of the product fixture 320 at the end away from the test motor 100, thus ensuring that a portion of the product 400 is exposed, so that the through-beam photoelectric sensors 600 are projected onto the product 400 through the clearance holes 328. In some embodiments, connecting brackets 610 are symmetrically provided on both sides of the fixture base 310; the through-beam photoelectric sensors 600 are connected to the connecting brackets 610.

[0051] Specifically, this embodiment uses a pair of photoelectric sensors 600 to identify whether a product 400 is installed on the product fixture 320.

[0052] Furthermore, the fixture base 310 is provided with an oblong hole 312; the oblong hole 312 extends along the axial direction of the drive shaft 200; the oblong hole 312 is connected to the acoustic test box by bolts. Specifically, since the distance between the test motor 100 and the product 400 varies depending on the specifications of the product 400 being tested, this embodiment uses bolts to connect to different positions of the oblong hole 312, thereby adjusting the distance between the product fixture 320, the product 400, and the test motor 100 to suit the testing of products 400 of different specifications.

[0053] Furthermore, the clamp assembly 300 also includes a multi-layer gasket 350; the multi-layer gasket 350 is disposed on the bottom of the clamp base 310.

[0054] Specifically, since the height of product 400 varies depending on the specifications of the product being tested, it is necessary to ensure that the axis of the mating hole of product 400 coincides with the axis of the drive shaft 200 in order to ensure testing accuracy. Therefore, in this embodiment, different layers of shims 350 can be placed on the bottom of the fixture base 310 according to the height of the axis of the drive shaft 200, so as to adjust the height of the fixture assembly 300 and thus ensure that the axis of the mating hole of product 400 coincides with the axis of the drive shaft 200.

[0055] This application allows for quick and easy placement of the product 400 without disassembly, making it both efficient and convenient. Therefore, this invention solves the problem of the cumbersome and time-consuming process of removing the drive shaft 200, aligning it with the alignment holes of the product 400, and then reinstalling it when testing rotating products 400 in an acoustic testing chamber, specifically when placing the product 400 on the clamp assembly 300.

[0056] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A testing mechanism for use in an acoustic testing chamber, characterized in that: include: The test motor is connected inside the acoustic test chamber; A drive shaft is connected to the output end of the test motor, and the end of the drive shaft is provided with a mating shaft; A fixture assembly is disposed on one side of the test motor; the fixture assembly includes a fixture base, a product fixture, a sliding part, and a reset part; the fixture base is connected to the acoustic test chamber; the product fixture is slidably connected to the top of the fixture base via the sliding part; the front side of the product fixture is provided with a contour groove for mounting the product; the rear side of the contour groove is provided with a through hole for a drive shaft to pass through, the through hole communicating with the contour groove; the two side walls of the contour groove are provided with limiting grooves, and the wings on the product are located in the limiting grooves; the front end of the limiting groove is provided with a guide surface; the reset part is connected to the rear side of the fixture base, and the reset part is used to drive the product fixture to slide closer to the test motor and to drive the product fixture to slide and reset.

2. The testing mechanism for use in an acoustic testing chamber according to claim 1, characterized in that: The reset part includes a spring base and a spring; the spring base is connected to the clamp base and is located behind the product clamp. The spring is connected between the spring base and the product clamp.

3. The testing mechanism for use in an acoustic testing chamber according to claim 2, characterized in that: The product clamp has a mounting hole on its rear side; the reset part also includes a spring pin, which is configured to correspond one-to-one with the spring; one end of the spring pin is connected to the spring base; the other end of the spring pin is connected to the mounting hole; and the spring is sleeved on the spring pin.

4. The testing mechanism for use in an acoustic testing chamber according to claim 1, characterized in that: It also includes at least one limiting pin, which is connected to the top of the fixture base; the limiting pin abuts against the front side wall of the product fixture.

5. The testing mechanism for use in an acoustic testing chamber according to claim 1, characterized in that: The sliding part includes a guide rail and a slider; the guide rail is connected to the fixture base; the slider is connected to the bottom of the product fixture; the guide rail and the slider are slidably connected.

6. The testing mechanism for use in an acoustic testing chamber according to claim 5, characterized in that: The top of the fixture base is provided with a base mounting groove; the bottom of the product fixture is provided with a fixture mounting groove; the guide rail is installed in the base mounting groove, and the slider is installed in the fixture mounting groove; there is a gap between the lower surface of the product fixture and the upper surface of the fixture base.

7. The testing mechanism for use in an acoustic testing chamber according to claim 1, characterized in that: The top of the contour groove has an opening.

8. The testing mechanism for use in an acoustic testing chamber according to claim 1, characterized in that: It also includes a pair of through-beam photoelectric sensors; the pair of through-beam photoelectric sensors are disposed on the fixture base; the through-beam photoelectric sensors are directed at the product.

9. The testing mechanism for use in an acoustic testing chamber according to claim 1, characterized in that: The fixture base is provided with an oblong hole; the oblong hole extends along the axial direction of the drive shaft; the oblong hole is connected to the acoustic test box by bolts.

10. The testing mechanism for use in an acoustic testing chamber according to claim 1, characterized in that: The clamp assembly also includes multiple layers of gaskets; the multiple layers of gaskets are placed on the bottom of the clamp base.

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