EOL testing machine

Abstract

The utility model relates to an EOL testing machine in the technical field of testing machines. When damage detection is carried out on a clutch bearing, a clutch is placed at the upper end of a fixed seat, and a reciprocating lead screw II is rotated, so that a lead screw nut drives a motor box to move up and down, the height of a connecting sleeve is adjusted according to clutches of different sizes, and the connecting sleeve is connected with a rotor of the clutch; when a contact structure is rotated clockwise, a contact block is rotated to the position between a telescopic stop block and a fixed stop block, a contact plate is pushed forwards, the contact plate abuts against a motor box, two clamping structures clamp a clutch through rotation of a first reciprocating lead screw, a first sensor probe abuts against the two sides of the clutch, and the motor box is clamped through a second reciprocating lead screw. The lead screw is matched with the mounting plate to control the mounting plate to move backwards, so that the second sensor probe abuts against the front end of the clutch, and the NVH detector can conduct detection conveniently.

Description

TECHNICAL FIELD

[0001] The utility model relates to test machine technical field especially is related to a kind of EOL test machines. BACKGROUND

[0002] EOL test purpose is to detect the working capacity of hybrid clutch before shipment, to ensure product performance.

[0003] The rotor of the hybrid clutch needs to be connected to the housing by bearings, and the rotor bearings can maintain the normal operation of the rotor. However, during assembly or transportation, the bearings may generate abnormal axial force, which can damage the functional surface of the bearings. This damage shortens the service life of the bearings, and the P2 hybrid clutch has a risk of failure, so damage detection of the bearings is needed to prevent the installation of damaged clutches from flowing into the vehicle and causing greater losses.

[0004] However, in the prior art, it is difficult to detect the damage of the bearings on the hybrid clutch. SUMMARY

[0005] To solve the problem of the prior art that it is difficult to detect the damage of the bearings on the hybrid clutch, the utility model provides the following technical scheme:

[0006] An EOL test machine includes an NVH detector and a clamping device for clamping the clutch.

[0007] One end of the NVH detector is connected to a first sensor probe and a second sensor probe for detecting the clutch housing, and the first sensor probe is provided with two.

[0008] The clamping device includes a fixed seat, the upper ends of the left and right sides of the fixed seat are symmetrically provided with clamping structures for clamping the clutch, and the first sensor probe is installed in the middle of the clamping structure, the front end of the clamping structure is provided with a mounting plate for limiting the second sensor probe, and one end of the mounting plate is provided with a lead screw for controlling the forward and backward movement of the mounting plate.

[0009] Further, a reciprocating screw is installed in the middle of the fixed seat for controlling the reverse movement of the two clamping structures, a lead screw nut is installed at the left end of the mounting plate for controlling the forward and backward movement of the mounting plate in cooperation with the lead screw, and a knob is installed at the front end of the lead screw for rotating the lead screw.

[0010] Further, an adjusting device is installed at the rear end of the fixed seat, the adjusting device includes a power structure for controlling the rotation of the clutch rotor, and the adjusting device includes a limiting structure for limiting the power structure.

[0011] Further, the power structure includes a motor box, a heat dissipation groove is formed in the upper end of the motor box, a screw nut is installed at the right end of the motor box, a motor is installed in the interior of the motor box, a transmission rod is installed at the output end of the motor, and a connecting sleeve connected with a rotor is installed at one end of the transmission rod.

[0012] Further, the limiting structure includes a limiting column for limiting the power structure, a reciprocating screw No.

[0013] Further, the limiting column is internally provided with a resisting plate for limiting the motor box, the limiting column is internally provided with a resisting structure for controlling the movement of the resisting plate, and the limiting column is internally provided with an adjusting structure for limiting the resisting structure.

[0014] Further, the resisting structure includes a long rod, a resisting block for resisting the resisting plate is installed at the middle portion of the long rod, and a torsion spring for controlling the resetting of the resisting block is installed at the lower end of the resisting block.

[0015] Further, the limiting column is internally provided with a fixed stopper for limiting the resisting block.

[0016] Further, the adjusting structure includes a telescopic stopper for limiting the resisting block, a connecting rod is installed at the rear end of the telescopic stopper, a handle for pulling the telescopic stopper is installed at the rear end of the connecting rod, and a spring for controlling the forward movement of the telescopic stopper is installed at the front end of the connecting rod.

[0017] Compared with the prior art, the utility model has the beneficial effects that:

[0018] When the damage of the clutch bearing is detected, the clutch is placed on the upper end of the fixed seat, the reciprocating screw No. 2 is rotated, the screw nut drives the motor box to move up and down, the height of the connecting sleeve is adjusted according to the different sizes of the clutch, the connecting sleeve is connected with the rotor of the clutch, the resisting structure is rotated clockwise, the resisting block is rotated to the space between the telescopic stopper and the fixed stopper, the resisting plate is pushed forward, the resisting plate is tightly contacted with the motor box, the reciprocating screw No. 1 is rotated, the two clamping structures are used for clamping the clutch, the first sensor probe is contacted with the two sides of the clutch, the mounting plate is controlled to move backward by the screw rod, the second sensor probe is contacted with the front end of the clutch, and the NVH detector is used for detection. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole structure schematic view of the utility model.

[0020] Figure 2 It is the structural schematic view of the clamping device of the utility model;

[0021] Figure 3 It is the connecting schematic view of the mounting plate and the screw rod of the utility model;

[0022] Figure 4 It is the structural schematic view of the adjusting device of the utility model;

[0023] Figure 5 It is the structural schematic view of the power structure of the utility model;

[0024] Figure 6 It is the structural schematic view of the limiting structure of the utility model;

[0025] Figure 7 It is the connecting schematic view of the abutting structure and the adjusting structure of the utility model;

[0026] Figure 8 It is the structural schematic view of the adjusting structure of the utility model.

[0027] In the drawing, the name list of the parts represented by each figure mark is as follows:

[0028] 10-NVH detector, 11-first sensor probe, 12-second sensor probe;

[0029] 001-clamping device;

[0030] 100-fixed seat, 110-clamping structure, 120-reciprocating screw No.1, 130-mounting plate, 131-screw rod nut, 140-screw rod, 141-turn button;

[0031] 002-adjusting device;

[0032] 200-power structure, 210-motor box, 211-screw nut, 212-radiating groove, 220-motor, 221-transmission rod, 222-connecting sleeve;

[0033] 300-limiting structure, 310-limiting column, 311-fixed stop block, 320-reciprocating screw No.2, 330-abutting plate, 340-abutting structure, 341-long rod, 342-abutting block, 343-torsional spring, 350-adjusting structure, 351-telescopic stop block, 352-connecting rod, 353-pull handle, 354-spring. DETAILED DESCRIPTION

[0034] The preferred specific embodiments for realizing the utility model are described in detail below, and clear and complete description is made in combination with the drawings.

[0035] Please refer toFigures 1-8 The utility model provides a kind of EOL testing machine, including NVH detector 10 and be used for clamping clutch's clamping device 001, so that clutch is more stable when detecting, one end of NVH detector 10 is connected with the first sensor probe 11 and second sensor probe 12 for detecting clutch housing, and first sensor probe 11 is provided with two, when testing clutch housing, two first sensor probe 11 respectively contact the two sides of clutch housing, second sensor probe 12 and the front end of clutch housing are contacted, clutch rotor is rotated, three probes simultaneously collect vibration signal, vibration signal is converted into analysable order spectrum by NVH detector 10, and abnormal vibration is found in the bearing failure on main probe by order curve, so that bearing damage is detected, which indicates that it cannot continue to use.

[0036] Clamping device 001 includes fixed seat 100, and the upper end of fixed seat 100 is symmetrically installed with clamping structure 110 for clamping clutch on left and right sides, and first sensor probe 11 is installed in the middle of clamping structure 110, for being contacted with clutch shell. The front end of clamping structure 110 is provided with mounting plate 130 for limiting second sensor probe 12, and second sensor probe 12 is installed at the right end of mounting plate 130, and one end of mounting plate 130 is provided with lead screw 140 for controlling mounting plate 130 to move forward and backward.

[0037] The middle of fixed seat 100 is provided with reciprocating screw No. 1 120 for controlling two clamping structures 110 to move reversely, so that the lower end of clamping structure 110 is synchronously fixedly installed with lead screw nut for controlling clamping structure 110 to move left and right in cooperation with reciprocating screw No. 1 120, so that reciprocating screw No. 1 120 can drive clamping structure 110 to move left and right when rotating. The spiral grooves at the left and right ends of reciprocating screw No. 1 120 are opposite in rotation direction, so that two clamping structures 110 move reversely to clamp clutch. The right end of reciprocating screw No. 1 120 is provided with hand wheel for rotating reciprocating screw No. 1 120, so that the rotation of reciprocating screw No. 1 120 is more convenient.

[0038] The left end of mounting plate 130 is fixedly installed with lead screw nut 131 for controlling mounting plate 130 to move forward and backward in cooperation with lead screw 140, and the front end of lead screw 140 is fixedly installed with knob 141 for rotating lead screw 140, so that lead screw 140 drives mounting plate 130 to move forward and backward in cooperation with lead screw nut 131 when knob 141 is rotated, so that second sensor probe 12 is contacted with the front end of clutch shell.

[0039] The rear end of the fixed seat 100 is provided with an adjusting device 002, which comprises a power structure 200 for controlling the rotation of the clutch rotor, and the adjusting device 002 comprises a limiting structure 300 for limiting the power structure 200.

[0040] The power structure 200 comprises a motor box 210, and a heat dissipation groove 212 is formed in the upper end of the motor box 210 to facilitate heat dissipation. A lead screw nut 211 is mounted at the right end of the motor box 210, and a motor 220 is mounted in the interior of the motor box 210. The output end of the motor 220 is provided with a transmission rod 221, and the front end of the transmission rod 221 is fixedly provided with a connecting sleeve 222 connected with the rotor. After the motor 220 is started, the transmission rod 221 is driven to rotate, so that the connecting sleeve 222 synchronously drives the clutch rotor to rotate, so as to facilitate the NVH detector 10 to cooperate with the first sensor probe 11 and the second sensor probe 12 to detect the clutch housing and detect whether there is abnormal vibration.

[0041] The limiting structure 300 comprises a limiting column 310 for limiting the power structure 200, and a reciprocating lead screw two 320 for controlling the motor box 210 to move up and down is mounted in the interior of the limiting column 310, and a hand chain for rotating the reciprocating lead screw two 320 is mounted at the upper end of the reciprocating lead screw two 320, and a slot cavity for the motor box 210 to move up and down is formed in the interior of the limiting column 310.

[0042] The left end of the motor box 210 is fixedly provided with a sliding block, and the interior of the limiting column 310 is provided with a limiting rod for limiting the sliding block, and the limiting rod is installed in the middle hole cavity of the sliding block, so that when the reciprocating lead screw two 320 rotates, the reciprocating lead screw two 320 can only drive the motor box 210 to move up and down through the lead screw nut 211, so as to adjust the position of the connecting sleeve 222 according to different sizes of the clutch.

[0043] The interior of the limiting column 310 is provided with a resisting plate 330 for limiting the motor box 210, and the resisting plate 330 is located at the rear of the motor box 210. The resisting plate 330 can abut against the rear wall of the motor box 210, and limiting rods are installed at the upper and lower ends of the rear of the resisting plate 330, so that the resisting plate 330 can only move forward and backward.

[0044] The inside of the limiting column 310 is provided with a resisting structure 340 for controlling the movement of the resisting plate 330, and the resisting structure 340 is located at the rear middle part of the resisting plate 330. The resisting structure 340 comprises a long rod 341, and the middle part of the long rod 341 is fixedly provided with a resisting block 342 for resisting the resisting plate 330. The resisting block 342 is a rhombic block, and the edge part of the resisting block 342 is arc-shaped so as to facilitate the resistance between the resisting block 342 and the resisting plate 330. The lower end of the resisting block 342 is provided with a torsion spring 343 for controlling the reset of the resisting block 342. The inside of the limiting column 310 is provided with a connecting block for limiting the torsion spring 343, so that the lower end of the torsion spring 343 is fixed on the connecting block, and the upper end of the torsion spring 343 is fixed on the bottom of the resisting block 342, so that when the resisting block 342 is reset, the resisting block 342 does not push the resisting plate 330 to the direction of the motor box 210.

[0045] The inside of the limiting column 310 is fixedly provided with a fixed stopper 311 for limiting the resisting block 342. The fixed stopper 311 is used for blocking the resisting block 342, so that the resisting block 342 cannot continue to rotate after rotating clockwise by 90 degrees. At this time, the resisting block 342 pushes the resisting plate 330 to the state of being tightly resisted by the motor box 210, so as to fasten the motor box 210, so that the motor 220 is not easy to vibrate when working, avoiding the influence of vibration of the motor 220 on the detection result when working.

[0046] The inside of the limiting column 310 is provided with an adjusting structure 350 for limiting the resisting structure 340. The adjusting structure 350 comprises a telescopic stopper 351 for limiting the resisting block 342. After the resisting block 342 pushes the resisting plate 330, the resisting block 342 is located between the fixed stopper 311 and the telescopic stopper 351, so that the resisting block 342 cannot rotate. The rear end of the telescopic stopper 351 is fixedly provided with a connecting rod 352, and the rear end of the connecting rod 352 is fixedly provided with a handle 353 for pulling the telescopic stopper 351, so as to control the telescopic stopper 351 to release the limiting of the resisting block 342. The front end of the connecting rod 352 is provided with a spring 354 for controlling the forward movement of the telescopic stopper 351. The inside of the limiting column 310 is provided with a hole for placing the spring 354. When the handle 353 pulls the telescopic stopper 351, the spring 354 is compressed. When the handle 353 is released, the spring 354 controls the telescopic stopper 351 to move forward, so that the telescopic stopper 351 and the fixed stopper 311 are in parallel, and the telescopic stopper 351 can limit the resisting block 342 together with the fixed stopper 311.

[0047] In the damage detection of the clutch bearing, the clutch is placed on the upper end of the fixed seat 100, the reciprocating screw rod two 320 is rotated, the screw nut 211 drives the motor box 210 to move up and down, the height of the connecting sleeve 222 is adjusted according to different sizes of the clutch, the connecting sleeve 222 and the rotor of the clutch are connected, the clockwise rotation of the resisting structure 340 is carried out, the resisting block 342 is rotated to the telescopic stop block 351 and the fixed stop block 311, the resisting plate 330 is pushed forward, the resisting plate 330 resists the motor box 210, the rotation of the reciprocating screw rod one 120 is carried out, the two clamping structures 110 clamp the clutch, the first sensor probe 11 and the two sides of the clutch are in contact, the screw rod 140 cooperates with the mounting plate 130 to control the rear movement of the mounting plate 130, the second sensor probe 12 and the front end of the clutch are in contact, so that the NVH detector 10 detects.

[0048] Based on the above content and the drawings, those skilled in the art can understand and implement the present application. In addition, any non-creative modification of the present application by those skilled in the art without creative labor still falls within the protection scope of the present application.

Claims

1. An EOL testing machine comprising an NVH detector (10) and a clamping device (001) for clamping a clutch, characterized in that: One end of the NVH detector (10) is connected with a first sensor probe (11) and a second sensor probe (12) for detecting a clutch housing, and the first sensor probe (11) is provided with two; The clamping device (001) comprises a fixed seat (100), the upper ends of the fixed seat (100) are symmetrically provided with clamping structures (110) for clamping the clutch on the left and right sides, the first sensor probe (11) is installed in the middle of the clamping structure (110), the front end of the clamping structure (110) is provided with a mounting plate (130) for limiting the second sensor probe (12), and one end of the mounting plate (130) is provided with a lead screw (140) for controlling the mounting plate (130) to move forward and backward.

2. The EOL tester of claim 1, wherein: The middle of the fixed seat (100) is provided with a reciprocating screw one (120) for controlling the two clamping structures (110) to move in opposite directions, the left end of the mounting plate (130) is provided with a lead screw nut (131) for controlling the mounting plate (130) to move forward and backward in cooperation with the lead screw (140), and the front end of the lead screw (140) is provided with a knob (141) for rotating the lead screw (140).

3. The EOL tester of claim 1, wherein: The rear end of the fixed seat (100) is provided with an adjusting device (002), the adjusting device (002) comprises a power structure (200) for controlling the rotation of the clutch rotor, and the adjusting device (002) comprises a limiting structure (300) for limiting the power structure (200).

4. The EOL tester of claim 3, wherein: The power structure (200) comprises a motor box (210), the upper end of the motor box (210) is provided with a heat dissipation groove (212), the right end of the motor box (210) is provided with a screw nut (211), the inside of the motor box (210) is provided with a motor (220), the output end of the motor (220) is provided with a transmission rod (221), and one end of the transmission rod (221) is provided with a connecting sleeve (222) connected with the rotor.

5. The EOL tester of claim 4, wherein: The limiting structure (300) comprises a limiting column (310) for limiting the power structure (200), and the inside of the limiting column (310) is provided with a reciprocating screw two (320) for controlling the motor box (210) to move up and down in cooperation with the screw nut (211).

6. The EOL tester of claim 5, wherein: The inside of the limiting column (310) is provided with a resisting plate (330) for limiting the motor box (210), the inside of the limiting column (310) is provided with a resisting structure (340) for controlling the resisting plate (330) to move, and the inside of the limiting column (310) is provided with an adjusting structure (350) for limiting the resisting structure (340).

7. The EOL tester of claim 6, wherein: The resisting structure (340) comprises a long rod (341), a resisting block (342) is installed at the middle part of the long rod (341) and is used for resisting the resisting plate (330), and a torsion spring (343) is installed at the lower end of the resisting block (342) and is used for controlling the reset of the resisting block (342).

8. The EOL tester of claim 7, wherein: The inside of the limiting column (310) is installed with a fixed stop block (311) which is used for limiting the resisting block (342).

9. The EOL tester of claim 7, wherein: The adjusting structure (350) comprises a telescopic stop block (351) which is used for limiting the resisting block (342), a connecting rod (352) is installed at the rear end of the telescopic stop block (351), a pull handle (353) is installed at the rear end of the connecting rod (352) and is used for pulling the telescopic stop block (351), and a spring (354) is installed at the front end of the connecting rod (352) and is used for controlling the forward movement of the telescopic stop block (351).

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