Automobile air conditioner damper piece detection device

Abstract

The utility model relates to a kind of automobile air conditioner damping sheet detection devices, belong to damping sheet detection equipment technical field.It includes universal material testing machine, down pressure connecting rod assembly and quick-release workpiece locking head, the upper clamp jaw of universal material testing machine clamps down pressure connecting rod assembly, the lower clamp jaw of universal material testing machine clamps quick-release workpiece locking head, quick-release workpiece locking head includes left fan piece, right fan piece and center piece, center piece is rectangular piece, first guide rod is symmetrically fixed and installed in center piece left end, left fan piece is slidably installed on first guide rod, first spring is fixed to the left fan piece and center piece between first guide rod, second guide rod is symmetrically fixed and installed in center piece right end, right fan piece is slidably installed on second guide rod, second spring is fixed to the right fan piece and center piece between second guide rod.The automobile air conditioner damping sheet detection device is convenient to disassemble and assemble automobile air conditioner damping sheet, reduces artificial labor quantity, avoids hand injury safety hazard.

Description

Technical Field

[0001] This utility model relates to a testing device for automotive air conditioning damping sheets, belonging to the technical field of damping sheet testing equipment. Background Technology

[0002] Automotive air conditioning damping pads are components used in automotive air conditioning systems to reduce noise and vibration. They are ring-shaped and made of plastic.

[0003] After the production of automotive air conditioning damping pads is completed, their mechanical properties need to be tested. This is usually done using a universal testing machine. The specific process is as follows: the upper jaw of the universal testing machine holds the lower pressure head, the lower jaw of the universal testing machine holds the workpiece positioning head, and the workpiece positioning head is fitted with the automotive air conditioning damping pad. The lower pressure head is used to press down on one side of the automotive air conditioning damping pad by misalignment, thereby performing a compression test.

[0004] The existing workpiece positioning head is a semi-circular plate-shaped body. A connecting rod is located at the bottom of the workpiece positioning head, and a groove is provided on the circumference of the workpiece positioning head. Limiting protrusions are provided at both ends of the workpiece positioning head. (See attached document) Figure 5 In use, the workpiece positioning head uses a slot and a limiting piece to press against the automotive air conditioning damping plate. Since the automotive air conditioning damping plate is ring-shaped, it must be manually squeezed on both sides to make it elliptical before it can be fitted onto the workpiece positioning head. However, the automotive air conditioning damping plate has high rigidity, making it very difficult to deform by manual squeezing. This results in inconvenient disassembly of the damping plate. Furthermore, manually squeezing it into an elliptical shape is time-consuming, labor-intensive, and poses a safety hazard as it increases the risk of hand injury. Therefore, it is necessary to improve this design. Summary of the Invention

[0005] The purpose of this utility model is to provide a vehicle air conditioning damping pad testing device that facilitates the disassembly and assembly of vehicle air conditioning damping pads, reduces manual labor, and avoids hand injury hazards.

[0006] The technical solution of this utility model is: A testing device for automotive air conditioning damping plates includes a universal testing machine, a lowering linkage assembly, and a quick-release workpiece locking head. The upper jaw of the universal testing machine holds the lowering linkage assembly, and the lower jaw of the universal testing machine holds the quick-release workpiece locking head. The quick-release workpiece locking head comprises a left fan plate, a right fan plate, and a center plate. The center plate is rectangular. A first guide rod is symmetrically fixedly mounted on the left end of the center plate, and a left fan plate is slidably mounted on the first guide rod. A first spring is fixedly mounted between the left fan plate and the center plate between the first guide rods. A second guide rod is symmetrically fixedly mounted on the right end of the center plate, and a right fan plate is slidably mounted on the second guide rod. A second spring is fixedly mounted between the right fan plate and the center plate between the second guide rods.

[0007] A connecting piece is fixedly installed on the lower surface of the central piece.

[0008] Limiting annular grooves are formed on the arc edges of the left fan plate, right fan plate, and center plate.

[0009] The left and right fan blades are symmetrically fixed with limiting protrusions at one end of the limiting ring groove.

[0010] The aforementioned pressure link assembly includes a vertical rod, a horizontal rod, and a pressure rod. A horizontal rod is fixedly installed on the vertical rod, and a pressure rod is fixedly installed on the horizontal rod. The pressure rod is a rectangular plate with a "T" shaped cross-section.

[0011] The advantages of this utility model compared with the prior art are as follows: In testing automotive air conditioning damping pads, this device first moves the left and right fan blades closer to the center plate, thereby changing their diameter. Then, it fits the damping pads into the automotive air conditioning damping pad, aligning them with the limiting ring grooves of the left, right, and center plates. Releasing the left and right fan blades allows them to return to their original position under the elastic force of the first and second springs, thus achieving the desired alignment of the left, right, and center plates. The limiting ring groove is interference-fitted with the automotive air conditioning damping plate to lock it in place. Then, the quick-release workpiece locking head, with the damping plate installed, aligns with the lower jaw of the universal testing machine. The lower jaw of the universal testing machine grips the connecting piece, and the upper jaw grips the vertical rod. At this point, the pressure rod aligns with the suspended semi-ring of the automotive air conditioning damping plate. By moving the upper jaw of the universal testing machine downwards, the mechanical performance test of the automotive air conditioning damping plate can begin. This automotive air conditioning damping plate testing device facilitates the installation and removal of the damping plate, reducing manual labor and avoiding hand injuries. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2This is a three-dimensional structural diagram of the quick-release workpiece locking head in this utility model; Figure 3 This is a three-dimensional structural diagram of the lower pressure linkage assembly in this utility model; Figure 4 This is a top view of the quick-release workpiece locking head in this utility model. Figure 5 This is a three-dimensional structural diagram of the workpiece positioning head in this utility model.

[0013] In the diagram: 1. Universal testing machine; 2. Upper jaw; 3. Lower jaw; 4. Vertical bar; 5. Horizontal bar; 6. Pressure bar; 7. Left blade; 8. Right blade; 9. Center plate; 10. First guide rod; 11. First spring; 12. Second guide rod; 13. Second spring; 14. Limiting ring groove; 15. Limiting protrusion; 16. Workpiece positioning head; 17. Automotive air conditioning damping plate; 18. Connecting plate. Detailed Implementation

[0014] As attached Figure 1-5 As shown The automotive air conditioning damping plate testing device includes a universal testing machine 1, a pressure linkage assembly, and a quick-release workpiece locking head. The universal testing machine 1 is a commercially available part. The universal testing machine 1 can perform various mechanical property tests such as tensile, compression, bending, and shearing on a variety of materials, including metals and non-metals.

[0015] The upper jaw 2 of the universal material testing machine 1 clamps the lower pressure link assembly, which includes a vertical bar 4, a horizontal bar 5, and a pressure bar 6. The horizontal bar 5 is fixedly installed on the vertical bar 4, and the pressure bar 6 is fixedly installed on the horizontal bar 5. The pressure bar 6 is a rectangular plate with a "T" shaped cross section. During operation, the vertical bar 4 and the horizontal bar 5 cooperate to make the pressure bar 6 misaligned with the lower jaw head, which facilitates the compression test of the automotive air conditioning damping sheet.

[0016] The lower jaw 3 of the universal material testing machine 1 holds the quick-release workpiece locking head. The quick-release workpiece locking head includes a left fan 7, a right fan 8 and a center piece 9. The center piece 9 is a rectangular piece. A connecting piece 18 is fixedly installed on the lower surface of the center piece 9. During operation, the connecting piece 18 can easily cooperate with the lower jaw 3 to clamp.

[0017] A first guide rod 10 is symmetrically fixedly installed on the left end of the center piece 9. A left fan piece 7 is slidably installed on the first guide rod 10. A first spring 11 is fixedly installed between the left fan piece 7 and the center piece 9, with one end of the first spring 11 welded to the left fan piece 7 and the other end of the first spring 11 welded to the center piece 9. A second guide rod 12 is symmetrically fixedly installed on the right end of the center piece 9. A right fan piece 8 is slidably installed on the second guide rod 12. A second spring 13 is fixedly installed between the second guide rod 12 and the center piece 9. One end of the second spring 13 is welded to the left fan piece 7, and the other end of the second spring 13 is welded to the center piece 9. During operation, the left fan piece 7 and the right fan piece 8 can move closer to the center piece 9 through the cooperation of the first spring 11 and the second spring 13, thereby changing the diameter of the left fan piece 7, the right fan piece 8 and the center piece 9, so as to facilitate their installation in the damping plate of the car air conditioner.

[0018] Limiting grooves 14 are provided on the arc edges of the left fan blade 7, right fan blade 8 and center blade 9. During operation, the limiting grooves 14 facilitate the limiting of the semi-ring of the automotive air conditioning damping sheet.

[0019] Limiting tabs 15 are symmetrically fixedly installed at one end of the limiting ring groove 14 of the left fan blade 7 and the right fan blade 8. During operation, the limiting tabs 15 can further limit the damping sheet of the car air conditioner to prevent it from accidentally falling out during the test.

[0020] When testing the automotive air conditioning damping plate 17, the automotive air conditioning damping plate testing device first moves the left fan blade 7 and the right fan blade 8 closer to the center plate 9, thereby changing the diameter of the left fan blade 7, the right fan blade 8 and the center plate 9. Then, it is fitted into the automotive air conditioning damping plate 17, so that the automotive air conditioning damping plate 17 corresponds to the limiting ring groove 14 of the left fan blade 7, the right fan blade 8 and the center plate 9. The left fan blade 7 and the right fan blade 8 are then released, and under the elastic force of the first spring 11 and the second spring 13, the left fan blade 7 and the right fan blade 8 are reset. This achieves an interference fit between the limiting ring groove 14 of the left fan blade 7, the right fan blade 8 and the center plate 9 and the automotive air conditioning damping plate 17, thus locking the automotive air conditioning damping plate 17.

[0021] Then, the quick-release workpiece locking head with the installed automotive air conditioning damping plate is aligned with the lower jaw 3 of the universal testing machine 1. The lower jaw 3 of the universal testing machine 1 is controlled to clamp the connecting piece 18, and the upper jaw 2 of the universal testing machine 1 is controlled to clamp the vertical rod 4. At this time, the pressure rod 6 is aligned with the suspended semi-ring of the automotive air conditioning damping plate 17. The upper jaw 2 of the universal testing machine 1 moves down, and the mechanical performance test of the automotive air conditioning damping plate 17 can be started.

[0022] This automotive air conditioning damping pad testing device facilitates the disassembly and assembly of automotive air conditioning damping pads, reducing manual labor and avoiding potential hand injuries.

Claims

1. A testing device for automotive air conditioning damping plates, comprising a universal testing machine (1), a lowering linkage assembly, and a quick-release workpiece locking head, wherein the upper jaw (2) of the universal testing machine (1) holds the lowering linkage assembly, and the lower jaw (3) of the universal testing machine (1) holds the quick-release workpiece locking head, characterized in that: The quick-release workpiece locking head includes a left fan plate (7), a right fan plate (8), and a center plate (9). The center plate (9) is a rectangular plate. A first guide rod (10) is symmetrically fixedly installed on the left end of the center plate (9). The left fan plate (7) is slidably installed on the first guide rod (10). A first spring (11) is fixedly installed between the left fan plate (7) and the center plate (9) between the first guide rods (10). A second guide rod (12) is symmetrically fixedly installed on the right end of the center plate (9). A right fan plate (8) is slidably installed on the second guide rod (12). A second spring (13) is fixedly installed between the right fan plate (8) and the center plate (9) between the second guide rods (12).

2. The automotive air conditioning damping sheet testing device according to claim 1, characterized in that: A connecting piece (18) is fixedly installed on the lower surface of the central piece (9).

3. The automotive air conditioning damping plate testing device according to claim 1, characterized in that: Limiting annular grooves (14) are provided on the arc edges of the left fan plate (7), right fan plate (8) and center plate (9).

4. The automotive air conditioning damping sheet testing device according to claim 1, characterized in that: The left fan (7) and right fan (8) are symmetrically fixed with limiting protrusions (15) at one end of the limiting ring groove (14).

5. The automotive air conditioning damping sheet testing device according to claim 1, characterized in that: The pressure link assembly includes a vertical rod (4), a horizontal rod (5) and a pressure rod (6). The horizontal rod (5) is fixedly installed on the vertical rod (4), and the pressure rod (6) is fixedly installed on the horizontal rod (5). The pressure rod (6) is a rectangular plate with a "T" shaped cross section.

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