CN115144144A

CN115144144A - Vehicle-mounted product testing device with high stability

Info

Publication number: CN115144144A
Application number: CN202210839936.8A
Authority: CN
Inventors: 谢宝建; 李兴武; 李祖松
Original assignee: Guangzhou Shuangbao Intelligent Technology Co ltd
Current assignee: Guangzhou Shuangbao Intelligent Technology Co ltd
Priority date: 2022-07-18
Filing date: 2022-07-18
Publication date: 2022-10-04

Abstract

The invention relates to the technical field of vehicle-mounted product testing, in particular to a vehicle-mounted product testing device with high stability. The invention provides a vehicle-mounted product testing device which can carry out omnibearing fixing on a vehicle-mounted product and has high stability. The utility model provides an on-vehicle product testing arrangement with high stability, including test support frame, guide roller, test backup pad, first gag lever post and shock dynamo etc. both sides all are connected with first gag lever post around the test support frame upper portion, and the equal sliding connection in two first gag lever posts left and right sides has guide roller, and guide roller slides at the test support frame, is connected with the test backup pad between four guide roller tops, and test support frame mid-mounting has shock dynamo. U-shaped pressure strip cooperation test backup pad presss from both sides tight on-vehicle product, can carry on spacingly to both sides about on-vehicle product, and the side clamp plate inwards removes and presss from both sides tight on-vehicle product, can carry on spacingly to the on-vehicle product left and right sides.

Description

Vehicle-mounted product testing device with high stability

Technical Field

The invention relates to the technical field of vehicle-mounted product testing, in particular to a vehicle-mounted product testing device with high stability.

Background

The vehicle-mounted product is produced in a flow line mode, unqualified products can appear in the production process, various tests need to be carried out on the vehicle-mounted product in order to guarantee the quality of the vehicle-mounted product, and the vibration test is used for determining whether the product has the capacity of bearing a vibration environment and is suitable for an actual structural strength test. The conventional vehicle-mounted product testing device generally clamps from top to bottom simply, so that the vehicle-mounted product is fixed, the stability is not high, and when the vibration test is performed, the vehicle-mounted product drops off from the device easily, so that the vehicle-mounted product is damaged.

How to design a vehicle-mounted product testing device with high stability and capable of fixing the vehicle-mounted product in all directions is the technical problem to be solved by the patent.

Disclosure of Invention

In order to overcome prior art and press from both sides tightly through simple and easy upper and lower, realize fixing on-vehicle product, stability is not high, when shaking the test, on-vehicle product drops from the device easily, leads to the shortcoming of on-vehicle product damage, the technical problem that solves: the vehicle-mounted product testing device with high stability can be used for fixing vehicle-mounted products in all directions.

The technical scheme is as follows: the utility model provides a vehicle-mounted product testing arrangement with high stability, including the test support frame, guide roller, the test backup pad, first gag lever post, shock dynamo, hold-down mechanism and side clamping mechanism, both sides all are connected with first gag lever post around the test support frame upper portion, the equal slidingtype of two first gag lever post left and right sides is connected with guide roller, guide roller slides at the test support frame, be connected with the test backup pad between four guide roller tops, test support frame mid-mounting has shock dynamo, be equipped with hold-down mechanism in the test backup pad, hold-down mechanism removes down and presss from both sides tight on-vehicle product, it is spacing to four sides about the on-vehicle product is around, be equipped with side clamping mechanism in the test backup pad, side clamping mechanism removes inwards and presss from both sides tight on-vehicle product, it is spacing to carry out the on-vehicle product left and right sides.

Further, hold-down mechanism is including first guide arm, the U-shaped pressure strip, connecting block and first spring, the middle part of both sides all is connected with two first guide arms around the test backup pad top, equal sliding connection has the connecting block on the first guide arm, be connected with the U-shaped pressure strip between four connecting blocks, the connecting block bottom all with test backup pad top between be connected with first spring, first spring housing is on first guide arm, drive connecting block and U-shaped pressure strip downstream under the effect of first spring, the tight on-vehicle product of U-shaped pressure strip cooperation test backup pad clamp.

Furthermore, the side clamping mechanism comprises a second limiting rod, a second spring and a side clamping plate, the inner side of the upper portion of the test supporting plate is connected with the two second limiting rods, the side clamping plate is connected with the left side and the right side of the upper portion of the test supporting plate in a sliding mode, the two second springs are connected between the side clamping plate and the test supporting plate, the second spring is sleeved on the second limiting rod, and the side clamping plate is driven to move inwards under the action of the second springs to clamp the vehicle-mounted product.

Further, still widen the mechanism including being used for widening compressing tightly of U-shaped pressure strip, compress tightly and widen the mechanism including the second guide arm, extend clamp plate and third spring, U-shaped pressure strip upper portion inboard is connected with two second guide arms, the equal slidingtype in both sides is connected with the extension clamp plate between two second guide arms, extend the clamp plate all with be connected with two third springs between the U-shaped pressure strip, the third spring housing is on the second guide arm, extend the clamp plate and outwards remove and widen the U-shaped pressure strip, prevent that on-vehicle product from breaking away from when carrying out the shock test.

Further, still including the buffering clamping mechanism who is used for preventing noise emission during on-vehicle product shock test, buffering clamping mechanism is including the buffer board, third guide arm and fourth spring, it all is connected with the third guide arm to extend clamp plate bottom for two, it is connected with the buffer board all to slidingly on the third guide arm, be connected with two fourth springs between left buffer board and the left third guide arm, be connected with two fourth springs between buffer board on right side and the third guide arm on right side, it drives the buffer board and moves down the cooperation test support plate and presss from both sides tight on-vehicle product to extend the clamp plate, the fourth spring provides the buffering effort, noise emission during the on-vehicle product shock test is prevented.

Further, the buffer board is the rubber material, sends great noise when preventing on-vehicle product vibrations test.

Further, still including being used for carrying out spacing positioning mechanism to the U-shaped pressure strip, positioning mechanism is including the locating plate, first connecting plate, the fifth spring, fourth guide arm and elasticity stay cord, the centre of both sides all is connected with the locating plate around the test support plate top, both sides all are connected with two fourth guide arms around the U-shaped pressure strip, sliding connection has first connecting plate between two fourth guide arms of front side, sliding connection has first connecting plate between two fourth guide arms of rear side, the first connecting plate of front side and the locating plate contact of front side, the first connecting plate of rear side and the locating plate contact of rear side, first connecting plate all with be connected with two fifth springs between the U-shaped pressure strip, fifth spring housing is on the fourth guide arm, all be connected with the elasticity stay cord between two buffer plate front sides and the first connecting plate, the buffer plate drives first connecting plate through the elasticity stay cord and inwards removes the card on the locating plate, carry on-limit to the U-shaped pressure strip, the continuous slip of loosening vehicle-mounted product about preventing the U-shaped pressure strip when shaking.

Further, still including being used for carrying out spacing stop gear to the side pinch plate, stop gear is including the direction subassembly, the wedge stopper, the sixth spring, the second connecting plate, the connecting rod, L shape connecting rod and seventh spring, the symmetrical connection has the direction subassembly around test backup pad upper portion left and right sides is all, the direction subassembly has two guide bars, it is connected with the wedge stopper all to slide on the direction subassembly, wedge stopper rebound can carry on spacingly to the side pinch plate, be connected with the second connecting plate between two wedge stoppers of front side, be connected with the second connecting plate between two wedge stoppers of rear side, wedge stopper all with test backup pad between be connected with two sixth springs, the sixth spring housing is on the direction subassembly, all be connected with two connecting rods on two second connecting plates, the middle part of both sides all slides and is connected with two L shape connecting rods around the test backup pad, the connecting rod is connected with L shape connecting rod, L shape connecting rod top all is connected with the U-shaped pressure strip, be connected with the seventh spring between the connecting rod of left front side and the L shape connecting rod of left front side, be connected with the seventh spring between the connecting rod of right side and the left side rear side connecting rod, be connected with the L shape connecting rod of right side rear side.

The invention has the advantages that: the U-shaped pressing plate is matched with the test supporting plate to clamp the vehicle-mounted product, the front side, the rear side, the upper side and the lower side of the vehicle-mounted product can be limited, the side clamping plate moves inwards to clamp the vehicle-mounted product, and the left side and the right side of the vehicle-mounted product can be limited; the U-shaped pressing plate is widened by extending the pressing plate, so that the vehicle-mounted product is prevented from being separated out when the vibration test is carried out; the buffer plate is matched with the test support plate to clamp the vehicle-mounted product, the buffer plate is made of rubber, and the fourth spring provides buffer acting force to prevent the vehicle-mounted product from generating noise during vibration test; the first connecting plate is clamped on the positioning plate to limit the U-shaped pressing plate, so that the U-shaped pressing plate is prevented from continuously sliding up and down to loosen a vehicle-mounted product in a vibration process; the side clamping plate is limited by the wedge-shaped limiting block, so that the side clamping plate does not need to be fixed manually after people manually move the side clamping plate outwards.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic perspective view of a first compressing mechanism according to the present invention.

Fig. 3 is a schematic perspective view of a second pressing mechanism according to the present invention.

Fig. 4 is a schematic perspective view of the side clamping mechanism of the present invention.

Fig. 5 is a schematic perspective view of the pressing and widening mechanism of the present invention.

Fig. 6 is a schematic sectional perspective view of the pressing and widening mechanism of the present invention.

Fig. 7 is a schematic perspective view of the buffer clamping mechanism of the present invention.

Fig. 8 is a schematic sectional perspective view of a first buffer clamping mechanism according to the present invention.

Fig. 9 is a schematic cross-sectional perspective view of a second buffer clamping mechanism according to the present invention.

Fig. 10 is a schematic perspective view of a first positioning mechanism according to the present invention.

Fig. 11 is a schematic perspective view of a second positioning mechanism of the present invention.

Fig. 12 is a schematic perspective view of the limiting mechanism of the present invention.

Fig. 13 is a schematic sectional perspective view of the spacing mechanism of the present invention.

Fig. 14 is an enlarged perspective view of the present invention at a.

Reference numerals: 1_ test support frame, 2_ guide roller, 3_ test support plate, 4_ first limit rod, 5_ vibration motor, 6_ hold-down mechanism, 61_ first guide rod, 62 \ "u" -shaped hold-down plate, 63_ connection block, 64_ first spring, 7_ side clamping mechanism, 71_ second limit rod, 72_ second spring, 73_ side clamping plate, 8_ hold-down widening mechanism, 81_ second guide rod, 82_ extension pressing plate, 83_ third spring, 9_ buffer clamping mechanism, 91_ buffer plate, 92_ third guide rod, 93_ fourth spring, 10_ positioning mechanism, 101_ positioning plate, 102_ first connection plate, 103_ fifth spring, 104_ fourth guide rod, 105_ elastic pull rope, 11_ limit mechanism, 1101_ guide assembly, 1102_ wedge limit block, 1103_ sixth spring, 1104_ second connection plate, 1105_ connection rod, 1106_ l-shaped connection rod, 1107_ seventh spring.

Detailed Description

The invention is further described below with reference to the figures and examples.

Example 1

The utility model provides a vehicle-mounted product testing arrangement with high stability, refer to fig. 1-4, including test support frame 1, guide roller 2, test support plate 3, first gag lever post 4, shock dynamo 5, hold-down mechanism 6 and side clamping mechanism 7, both sides all are connected with first gag lever post 4 around test support frame 1 upper portion, the equal sliding type in two first gag lever post 4 left and right sides is connected with guide roller 2, guide roller 2 slides at test support frame 1, be connected with test support plate 3 between four guide roller 2 tops, test support frame 1 mid-mounting has shock dynamo 5, be equipped with hold-down mechanism 6 on the test support plate 3, hold-down mechanism 6 is used for spacing four sides about the vehicle-mounted product, be equipped with side clamping mechanism 7 on the test support plate 3, side clamping mechanism 7 is used for spacing the vehicle-mounted product left and right sides. Referring to fig. 2-3, the pressing mechanism 6 includes a first guide rod 61, a U-shaped pressing plate 62, a connecting block 63 and a first spring 64, two first guide rods 61 are connected to the middle portions of the front side and the rear side of the top of the test supporting plate 3, the connecting block 63 is connected to each of the first guide rods 61 in a sliding manner, the U-shaped pressing plate 62 is connected between the four connecting blocks 63, the U-shaped pressing plate 62 is used for being matched with the test supporting plate 3 to clamp a vehicle-mounted product, the first spring 64 is connected between the bottom of each of the connecting blocks 63 and the top of the test supporting plate 3, and the first spring 64 is sleeved on the first guide rod 61. Referring to fig. 4, the side clamping mechanism 7 includes a second limiting rod 71, a second spring 72 and a side clamping plate 73, the two second limiting rods 71 are connected to the inner side of the upper portion of the test supporting plate 3, the side clamping plates 73 are connected to the left and right sides of the two second limiting rods 71 in a sliding manner, the side clamping plates 73 are used for clamping vehicle-mounted products, the two second springs 72 are connected between the side clamping plates 73 and the test supporting plate 3, and the second springs 72 are sleeved on the second limiting rods 71. When the vehicle-mounted product vibration test device is used, a user manually moves the U-shaped pressing plate 62 upwards, the U-shaped pressing plate 62 drives the connecting block 63 to move upwards, the first spring 64 is stretched, then manually moves the side clamping plate 73 outwards, the second spring 72 is compressed, then the user places a vehicle-mounted product on the test supporting plate 3 and is positioned at the lower side of the U-shaped pressing plate 62 and between the side clamping plates 73, then the U-shaped pressing plate 62 is loosened, the U-shaped pressing plate 62 and the connecting block 63 are driven to move downwards under the action of the first spring 64, the U-shaped pressing plate 62 is matched with the test supporting plate 3 to clamp the vehicle-mounted product, the front side and the rear side of the vehicle-mounted product are limited, meanwhile, the side clamping plate 73 is loosened, the side clamping plate 73 drives the side clamping plate 73 to move inwards to clamp the vehicle-mounted product under the action of the second spring 72, then the left side and the right side of the vehicle-mounted product are limited, then the vibration motor 5 is started, so that the vehicle-mounted product is subjected to vibration test, after the test is finished, the U-mounted product is manually moved upwards, the U-shaped pressing plate 62 drives the connecting block 63 to move upwards, the first spring 64 is stretched and then the side clamping plate 73 is moved downwards, the side clamping plate 73 is reset spring 73, and the side reset spring 73 is released, and the side reset spring 73 is released.

Example 2

On the basis of embodiment 1, referring to fig. 5 and 6, the pressing and widening device 8 further comprises a pressing and widening mechanism 8, wherein the pressing and widening mechanism 8 comprises a second guide rod 81, an extension pressing plate 82 and a third spring 83, the inner side of the upper portion of the U-shaped pressing plate 62 is connected with the two second guide rods 81, the extension pressing plates 82 are connected between the two second guide rods 81 in a sliding mode on the left side and the right side, the extension pressing plates 82 are used for widening the U-shaped pressing plate 62, the two third springs 83 are connected between the extension pressing plates 82 and the U-shaped pressing plate 62, and the third springs 83 are sleeved on the second guide rods 81. When the U-shaped pressing plate 62 moves up and down, the second guide rod 81, the extension pressing plate 82 and the third spring 83 are driven to move up and down, the third spring 83 is compressed in an initial state, the force of the second spring 72 is larger than that of the third spring 83, when the side clamping plate 73 moves outwards, the extension pressing plate 82 is driven to move outwards under the reset action of the third spring 83 to widen the U-shaped pressing plate 62, the vehicle-mounted product is clamped by the extension pressing plate 82 in cooperation with the test supporting plate 3, the vehicle-mounted product is prevented from being separated during a vibration test, when the side clamping plate 73 moves inwards and resets, the side clamping plate 73 extrudes the extension pressing plate 82 inwards, and the third spring 83 is compressed.

Referring to fig. 7, fig. 8 and fig. 9, the vehicle-mounted test device further includes a buffering clamping mechanism 9, the buffering clamping mechanism 9 includes a buffer plate 91, a third guide rod 92 and a fourth spring 93, the bottoms of the two extending press plates 82 are connected with the third guide rod 92, the third guide rod 92 is connected with the buffer plate 91 in a sliding manner, the buffer plate 91 is used for being matched with the test support plate 3 to clamp a vehicle-mounted product, the buffer plate 91 is made of rubber, two fourth springs 93 are connected between the left buffer plate 91 and the left third guide rod 92, and two fourth springs 93 are connected between the right buffer plate 91 and the right third guide rod 92. When the extension pressing plate 82 moves upwards, the buffer plate 91 is driven, the third guide rod 92 and the fourth spring 93 move upwards, when the extension pressing plate 82 moves downwards, the buffer plate 91 is driven, the third guide rod 92 and the fourth spring 93 move downwards, the buffer plate 91 is in contact with a vehicle-mounted product, and the vehicle-mounted product is clamped by the cooperation test supporting plate 3, the vehicle-mounted product upwards extrudes the buffer plate 91, the fourth spring 93 is compressed to provide buffering acting force, the buffer plate 91 is made of rubber materials and can prevent the vehicle-mounted product from generating noise during vibration test, when the extension pressing plate 82 moves upwards, the buffer plate 91 is driven, the third guide rod 92 and the fourth spring 93 move upwards, the buffer plate 91 is separated from the vehicle-mounted product, the buffer plate 91 is driven to move downwards under the resetting effect of the fourth spring 93, and when the extension pressing plate 82 moves downwards, the buffer plate 91, the third guide rod 92 and the fourth spring 93 are driven to move downwards to reset.

Referring to the drawings, fig. 10 and 11, the testing device further comprises a positioning mechanism 10, the positioning mechanism 10 comprises a positioning plate 101, a first connecting plate 102, a fifth spring 103, a fourth guide rod 104 and an elastic pull rope 105, the positioning plate 101 is connected to the middle of the front side and the middle of the rear side of the top of the testing support plate 3, the two fourth guide rods 104 are connected to the front side and the rear side of the U-shaped pressing plate 62, the first connecting plate 102 is connected between the two fourth guide rods 104 on the front side in a sliding manner, the first connecting plate 102 on the front side is in contact with the positioning plate 101 on the front side, the first connecting plate 102 on the rear side is in contact with the positioning plate 101 on the rear side, the first connecting plate 102 is matched with the positioning plate 101 to limit the U-shaped pressing plate 62, the two fifth springs 103 are connected between the first connecting plate 102 and the U-shaped pressing plate 62, the fifth spring 103 is sleeved on the fourth guide rod 104, the elastic pull rope 105 is connected between the front sides of the two buffering plates 91 and the first connecting plate 102, and the elastic pull rope 105 is connected between the rear sides of the two buffering plates 91 and the first connecting plate 102. When the U-shaped pressing plate 62 moves up and down, the first connecting plate 102, the fifth spring 103 and the fourth guide rod 104 are driven to move up and down, after the vehicle-mounted product is clamped by the buffer plate 91 in cooperation with the test supporting plate 3, the vehicle-mounted product extrudes the buffer plate 91 upwards, the fourth spring 93 is compressed, the buffer plate 91 drives the first connecting plate 102 to move inwards to be clamped on the positioning plate 101 through the elastic pull rope 105, the fifth spring 103 is compressed, the U-shaped pressing plate 62 is limited, the U-shaped pressing plate 62 slides up and down continuously during vibration prevention, the buffer plate 91 is loosened from the vehicle-mounted product, when the extending pressing plate 82 moves upwards, the buffer plate 91 is driven, the third guide rod 92 and the fourth spring 93 move upwards, the buffer plate 91 is separated from the vehicle-mounted product, the buffer plate 91 is driven to move downwards to reset under the reset effect of the fourth spring 93, the elastic pull rope 105 is loosened, and the first connecting plate 102 is driven to move outwards to reset under the reset effect of the reset of the fifth spring 103.

Referring to fig. 12, fig. 13 and fig. 14, the test device further includes a limiting mechanism 11, the limiting mechanism 11 includes a guide assembly 1101, a wedge-shaped limiting block 1102, a sixth spring 1103, a second connecting plate 1104, a connecting rod 1105, an L-shaped connecting rod 1106 and a seventh spring 1107, the guide assembly 1101 is symmetrically connected to the front and the back of the left and the right sides of the upper portion of the test supporting plate 3, the guide assembly 1101 has two guide rods, the guide assembly 1101 is slidably connected with the wedge-shaped limiting block 1102, the side clamping plate 73 moves outwards to contact with the wedge-shaped limiting block 1102, the wedge-shaped limiting block 1102 is used for limiting the side clamping plate 73, the second connecting plate 1104 is connected between the two wedge-shaped limiting blocks 1102 at the front side, the second connecting plate 1104 is connected between the two wedge-shaped limiting blocks 1102 at the back side, two sixth springs 1103 are connected between the wedge-shaped limiting blocks 1102 and the test supporting plate 3, the sixth springs 1103 are sleeved on the guide assembly 1101, two connecting rods 1105 are connected to two second connecting plates 1104, two L-shaped connecting rods 1106 are connected to the middle portions of the front side and the rear side of the test supporting plate 3 in a sliding mode, the connecting rods 1105 are connected with the L-shaped connecting rods 1106 in a sliding mode, the tops of the L-shaped connecting rods 1106 are connected with the U-shaped pressing plate 62, a seventh spring 1107 is connected between the connecting rod 1105 of the left front side and the L-shaped connecting rod 1106 of the left front side, a seventh spring 1107 is connected between the connecting rod 1105 of the right front side and the L-shaped connecting rod 1106 of the right front side, and a seventh spring 1107 is connected between the connecting rod 1105 of the left rear side and the L-shaped connecting rod 1106 of the right rear side. The force of the sixth spring 1103 is smaller than the force of the seventh spring 1107, when the U-shaped pressing plate 62 moves upward, the L-shaped connecting rod 1106 is driven to move upward, the L-shaped connecting rod 1106 drives the connecting rod 1105 to move upward through the seventh spring 1107, and then the second connecting plate 1104 is driven to move upward, the second connecting plate 1104 drives the wedge stopper 1102 to move upward, the sixth spring 1103 is compressed, then the side clamping plate 73 moves outward, the second spring 72 is compressed, when the side clamping plate 73 contacts the wedge stopper 1102, the side clamping plate 73 presses the wedge stopper 1102 downward, the sixth spring 1103 is reset accordingly, the wedge stopper 1102 drives the second connecting plate 1104 and the connecting rod 1105 to move downward, the seventh spring 1107 is extended, when the side clamping plate 73 passes over the wedge stopper 1102, the connecting rod 1105 is driven by the reset of the seventh spring 1107, the second connecting plate and the wedge stopper 1102 move upward under the action of the reset of the seventh spring 1103, the seventh spring 1107 resets accordingly, the wedge stopper 73 limits the side clamping plate 73, thus, after the side clamping plate 73 moves outward manually, the connecting plate 1102 drives the side clamping plate 1104 to move downward, and then the second connecting plate 1104 drives the second spring 1104 to move downward, and the U-shaped connecting plate 1104 moves downward, and then the reset spring 1107 is driven by the reset spring 1104, and the reset spring 73, when the side clamping plate 73 moves downward, and the U-shaped connecting plate 1104 moves downward, and the U-shaped connecting plate 73, and the U-shaped connecting plate 1104 moves downward.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and shall cover the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. The utility model provides a vehicle-mounted product testing arrangement with high stability, including test support frame (1), guide roller (2), test backup pad (3), first gag lever post (4) and shock dynamo (5), be connected with two first gag lever posts (4) on test support frame (1), two first gag lever posts (4) left and right sides all slidingtype are connected with guide roller (2), be connected with test backup pad (3) between four guide roller (2), test support frame (1) mid-mounting has shock dynamo (5), a serial communication port, still including hold-down mechanism (6) and side clamping mechanism (7), be equipped with hold-down mechanism (6) on test backup pad (3), hold-down mechanism (6) downstream clamp tightly on-vehicle product, it is spacing to carry out four sides about on-vehicle product, be equipped with side clamping mechanism (7) on test backup pad (3), side clamping mechanism (7) inboard moving presss from both sides tight on-vehicle product, it is spacing to carry out on-vehicle product left and right sides.

2. The vehicle-mounted product testing device with high stability according to claim 1, wherein the pressing mechanism (6) comprises first guide rods (61), a U-shaped pressing plate (62), connecting blocks (63) and first springs (64), the middle portions of the front side and the rear side of the top of the testing supporting plate (3) are respectively connected with the two first guide rods (61), the connecting blocks (63) are respectively connected on the first guide rods (61) in a sliding manner, the U-shaped pressing plate (62) is connected between the four connecting blocks (63), the first springs (64) are respectively connected between the bottoms of the connecting blocks (63) and the top of the testing supporting plate (3), the first springs (64) are sleeved on the first guide rods (61), the connecting blocks (63) and the U-shaped pressing plate (62) are driven to move downwards under the action of the first springs (64), and the U-shaped pressing plate (62) is matched with the testing supporting plate (3) to clamp the vehicle-mounted product.

3. The vehicle-mounted product testing device with high stability according to claim 2, wherein the side clamping mechanism (7) comprises a second limiting rod (71), a second spring (72) and a side clamping plate (73), the two second limiting rods (71) are connected to the inner side of the upper portion of the testing support plate (3), the side clamping plates (73) are connected to the left side and the right side of the space between the two second limiting rods (71) in a sliding mode, the two second springs (72) are connected between the side clamping plate (73) and the testing support plate (3), the second spring (72) is sleeved on the second limiting rod (71), and the side clamping plate (73) is driven to move inwards under the action of the second spring (72) to clamp the vehicle-mounted product.

4. The vehicle-mounted product testing device with high stability according to claim 2, further comprising a pressing widening mechanism (8) for widening the U-shaped pressing plate (62), wherein the pressing widening mechanism (8) comprises a second guide rod (81), an extending pressing plate (82) and third springs (83), two second guide rods (81) are connected to the inner side of the upper portion of the U-shaped pressing plate (62), the extending pressing plates (82) are connected to the left side and the right side of the space between the two second guide rods (81) in a sliding mode, two third springs (83) are connected between the extending pressing plates (82) and the U-shaped pressing plate (62), the third springs (83) are sleeved on the second guide rods (81), and the extending pressing plates (82) move outwards to widen the U-shaped pressing plate (62) to prevent the vehicle-mounted product from being separated during the vibration test.

5. The vehicle-mounted product testing device with high stability according to claim 4, further comprising a buffering clamping mechanism (9) for preventing noise generated during vibration testing of the vehicle-mounted product, wherein the buffering clamping mechanism (9) comprises a buffer plate (91), a third guide rod (92) and a fourth spring (93), the bottoms of the two extension pressing plates (82) are connected with the third guide rod (92), the third guide rod (92) is connected with the buffer plate (91) in a sliding manner, two fourth springs (93) are connected between the left buffer plate (91) and the left third guide rod (92), two fourth springs (93) are connected between the right buffer plate (91) and the right third guide rod (92), the extension pressing plate (82) drives the buffer plate (91) to move downwards through the third guide rod (92) to cooperate with the testing supporting plate (3) to clamp the vehicle-mounted product, and the fourth springs (93) provide buffering acting force to prevent noise generated during vibration testing of the vehicle-mounted product.

6. The device for testing the vehicle-mounted product with high stability as claimed in claim 5, wherein the buffer plate (91) is made of rubber to prevent the vehicle-mounted product from generating large noise during vibration test.

7. The vehicle-mounted product testing device with high stability according to claim 6, further comprising a positioning mechanism (10) for limiting the U-shaped pressing plate (62), wherein the positioning mechanism (10) comprises a positioning plate (101), a first connecting plate (102), a fifth spring (103), a fourth guide rod (104) and an elastic pull rope (105), the positioning plate (101) is connected between the front side and the rear side of the top of the testing supporting plate (3), the two fourth guide rods (104) are connected to the front side and the rear side of the U-shaped pressing plate (62), the first connecting plate (102) is connected between the two fourth guide rods (104) at the front side in a sliding manner, the first connecting plate (102) is connected between the two fourth guide rods (104) at the rear side in a sliding manner, the first connecting plate (102) at the front side is in contact with the positioning plate (101) at the front side, the first connecting plate (102) at the rear side is in contact with the positioning plate (101) at the rear side, the two fifth springs (103) are connected between the first connecting plate (102) and the U-shaped pressing plate (62), the fifth spring (103) is sleeved on the fourth connecting plate (104), the elastic pull rope (105) at the rear side, the first connecting plate (102) is connected between the first connecting plate (102) at the rear side and the elastic pull rope (105), the first connecting plate (105), the buffer plate (91) drives the first connecting plate (102) to move inwards through the elastic pull rope (105) and is clamped on the positioning plate (101), the U-shaped pressing plate (62) is limited, and the U-shaped pressing plate (62) continuously slides up and down to loosen a vehicle-mounted product in the process of preventing vibration.

8. The vehicle-mounted product testing device with high stability according to claim 3, further comprising a limiting mechanism (11) for limiting the side clamping plate (73), wherein the limiting mechanism (11) comprises a guide assembly (1101), a wedge-shaped limiting block (1102), a sixth spring (1103), a second connecting plate (1104), a connecting rod (1105), an L-shaped connecting rod (1106) and a seventh spring (1107), the guide assembly (1101) is symmetrically connected to the left and right sides of the upper portion of the testing supporting plate (3) in a front-back manner, the guide assembly (1101) comprises two guide rods, the guide assembly (1101) is slidably connected to the wedge-shaped limiting block (1102), the wedge-shaped limiting block (1102) moves upwards to limit the side clamping plate (73), the second connecting plate (1102) is connected between the two wedge-shaped limiting blocks (1102) at the front side, the second connecting plate (1104) is connected between the two wedge-shaped limiting blocks (1102) at the rear side, the two wedge-shaped limiting blocks (1104) at the rear side, the two wedge-shaped limiting blocks (1102) are connected to the testing supporting plate (3), the two sixth springs (1103) are connected to the sliding connecting rod (1104), the six springs (1103) are sleeved on the guide assembly (1101), the two connecting rods (1105) are connected to the two connecting plates (1105) at the two sides of the sliding connecting rod (1106, and the L-shaped connecting rod (1106), the L-shaped connecting rod (1105) are connected to the middle of the testing supporting plate (1106), the top of the L-shaped connecting rod (1106) is connected with the U-shaped pressing plate (62), a seventh spring (1107) is connected between the connecting rod (1105) on the left front side and the L-shaped connecting rod (1106) on the left front side, a seventh spring (1107) is connected between the connecting rod (1105) on the right front side and the L-shaped connecting rod (1106) on the right front side, a seventh spring (1107) is connected between the connecting rod (1105) on the left rear side and the L-shaped connecting rod (1106) on the left rear side, and a seventh spring (1107) is connected between the connecting rod (1105) on the right rear side and the L-shaped connecting rod (1106) on the right rear side.