A performance testing device and a testing method for automobile parts

Abstract

The present invention relates to a performance testing device and a testing method for automobile accessories, and relates to the technical field of automobile parts testing, which comprises a testing platform and two side panels symmetrically mounted on the testing platform, a hood to be tested is placed on the two side panels, and a testing device is arranged on the testing platform; the testing device comprises a supporting crossbeam which is limitedly slidably arranged between the two side panels, a clamping seat is installed at the middle of the supporting crossbeam through an I-shaped base, a rectangular supporting plate is slidably arranged on the testing platform through an inner cylinder, an arc-shaped sliding groove for sliding installation of the inner cylinder is opened on the testing platform, a fixing mechanism is arranged on the clamping seat, and an extrusion assembly is arranged on the rectangular supporting plate; the present invention has the effect of being able to firmly clamp the automobile hood to perform strength testing on it in different directions and angles, and is not restricted by the clamping force during testing, so as to prevent the test result from having deviation, and provide a guarantee for the accuracy of the test.

Description

Technical Field

[0001] The present application relates to the technical field of automobile parts testing, and in particular to a performance testing device and a testing method for automobile parts. Background Art

[0002] Auto parts refer to various parts used to improve the performance, appearance, function or maintenance of a car. There are many types of auto parts, including but not limited to engine parts, chassis parts, body components, etc. Among them, the engine hood is the part covering the engine on the car, also called the hood. It is used to cover and protect the engine and other mechanical parts. If the hood is not strong enough, it may cause deformation, breakage or even fall off during driving, causing serious safety hazards. Therefore, in order to ensure the safety and stability of the car during driving, the hood needs to undergo relevant strength tests before leaving the factory to ensure that it meets the prescribed strength standards and safety requirements.

[0003] For example, in the existing Chinese patent with the publication number CN216284671U, a detection device for the production of the front cover of the engine compartment is disclosed, which includes a bottom plate, an L-shaped plate is fixedly connected to the top of the bottom plate, two fixing seats are fixedly fixed to the top of the bottom plate, a top bin is fixedly connected to the inner top wall of the L-shaped plate, two sleeves are provided at the bottom of the top bin, a lifting plate is fixedly connected to the outer side of the sleeve, a detection plate is fixedly connected to the bottom of the lifting plate, a lifting mechanism for driving the sleeve to move up and down is provided inside the top bin, and a fixing mechanism for fixing the front cover is provided at the bottom of the lifting plate. Through the above-mentioned prior art, the motor is started, so that the sleeve drives the lifting plate and the fixed pipe to move downward, when the lifting plate moves downward, the detection plate moves with it, and detects the cover after contacting with the cover, when the fixed pipe moves downward, it drives the contact plate to move downward, after the contact plate contacts with the cover, the contact plate fixes the cover, so as to achieve the effect of fixing the cover during detection.

[0004] However, the above prior art has the following technical defects:

[0005] When the above-mentioned prior art is in operation, it mainly compresses the cover plate during the process of the detection plate moving downward, and then drives the detection plate to move upward and reset, to check whether the cover plate is deformed or broken to detect whether it is qualified. However, when the detection plate performs resistance and extrusion detection on the cover plate, it can only perform resistance and extrusion on the middle part of the cover plate vertically from top to bottom, and the detection direction is single. When the actual cover plate is installed in the car and used, the extrusion direction of the cover plate is not fixed and uncertain when an accident occurs. Different extrusion directions and angles cause different degrees of deformation or fracture of the cover plate. As a result, the detection results obtained by the single detection direction of the above-mentioned device are not comprehensive; the overall strength of the cover plate cannot be detected.

[0006] Secondly, before the above-mentioned device performs resistance and extrusion, the contact plate will first fix the cover plate, and the fixing points are on both sides of the position where the detection plate resists and extrudes the cover plate; then when the detection plate moves downward to resist and extrudes the middle part of the cover plate, on the one hand, the cover plate will be subject to the resistance and fixing restriction force of the contact plate, and on the other hand, it will be subject to the downward pressure resistance force of the detection plate. The two forces will restrict each other, resulting in the detection result of the above-mentioned device to be biased and inaccurate.

[0007] Based on this, on the basis of the existing engine compartment front cover production detection device, in order to overcome the above-mentioned technical defects, there is still room for improvement. Summary of the invention

[0008] In order to be able to firmly clamp the automobile hood to perform strength testing on it in different directions and angles, and not be restricted by the clamping force during the test, prevent the test results from being biased, and provide a guarantee for the accuracy of the test, the present application provides a performance testing device and a testing method for automobile accessories.

[0009] In the first aspect, the present application provides a performance testing device for automobile parts, which adopts the following technical solution:

[0010] A performance testing device for automobile accessories, comprising a testing platform and two side panels symmetrically mounted on the testing platform, an engine hood to be tested is placed on the two side panels, and a testing device is provided on the testing platform;

[0011] The detection device includes a supporting beam that is limitedly slidably arranged between the two side panels, and a limiting sliding groove for the supporting beam to be slidably installed is opened on one side of the two side panels. A clamping seat is installed in the middle of the supporting beam through an I-shaped base. A rectangular supporting plate is slidably arranged on the detection platform through an inner cylinder. An arc-shaped sliding groove for the inner cylinder to be slidably installed is opened on the detection platform. A fixing mechanism is provided on the clamping seat, and an extrusion assembly is provided on the rectangular supporting plate.

[0012] Preferably, the fixing mechanism includes a bottom support plate, an upper pressure plate and a limiting unit, and the bottom support plate and the upper pressure plate are slidably arranged in a clamping seat in an upper and lower limit position in turn. The clamping seat is provided with an inner groove and a limiting slide for installing the bottom support plate and matching with the upper pressure plate. Rubber splints are installed on the upper side of the bottom support plate and the lower side of the upper pressure plate, and the limiting unit is arranged on the clamping seat and the upper pressure plate.

[0013] Preferably, the limiting unit includes a limit plate, a spring rod and a driving assembly, the limit plate vertically upwardly passes through the bottom support plate and the upper pressure plate and is installed in the groove in the clamping seat, the bottom support plate and the upper pressure plate are both penetrated by rectangular holes for the limit plate to penetrate, several telescopic ends of the spring rods are symmetrically penetrated downward in the upper pressure plate, the upper pressure plate is symmetrically penetrated by several circular through holes for the installation of the spring rods, the telescopic ends of the spring rods are provided with rubber round blocks, and the driving assembly is arranged between the clamping seat and the two side panels.

[0014] Preferably, the driving assembly includes a convex plate installed on the upper side of the clamping seat, and the convex plate is provided with a bidirectional threaded rod with threads passing through the upper pressure plate and the bottom support plate, which is rotated limited by the end circular ring, and the lower end of the bidirectional threaded rod penetrates the clamping seat and the I-shaped base and extends downward, and the upper pressure plate and the bottom support plate are threaded with internal threaded holes that are compatible with the bidirectional threaded rod, and the I-shaped base and the clamping seat are provided with round rod holes for the ends of the bidirectional threaded rod to penetrate and extend out.

[0015] Preferably, a driving gear is sleeved on the lower end of the bidirectional threaded rod, and a driving rack intermittently meshing with the driving gear is installed on one side of one of the side panels through an assembly plate.

[0016] Preferably, an end cross plate is provided at one end of the two side panels away from the rectangular support plate, a disc handle is inserted and rotatably provided on the end cross plate, an inner circular hole for the disc handle to be inserted and installed is opened through the end cross plate, a driving screw with a thread passing through a supporting cross beam is provided at one end of the disc handle, and a threaded through-hole matching the driving screw is opened through the thread of the supporting cross beam.

[0017] Preferably, the extrusion assembly includes a threaded rod and an extruder, the threaded rod penetrates the detection platform and is threadedly rotated on the bottom end of the inner cylinder, the detection platform is penetrated by an arc-shaped opening connected to the arc-shaped slide groove for the installation of the threaded rod, the inner cylinder is threaded with a threaded circular hole adapted for the threaded rod, a locking block is sleeved on the threaded rod located below the detection platform, and the extruder is arranged on a rectangular support plate.

[0018] Preferably, the extruder comprises a driving cylinder arranged on a rectangular support plate, a Z-shaped stop block is installed at the telescopic end of the driving cylinder, and an internal tooth insertion hole is penetrated through the Z-shaped stop block.

[0019] Preferably, a resistance plate is installed on one end of the Z-shaped resistance block away from the driving cylinder through an adapter rod.

[0020] In a second aspect, the present application also discloses a performance testing method for automotive parts, the testing method comprising the following steps:

[0021] The first step is to place the test piece: first, place the car hood to be tested on the upper side of the two side panels, and make one side of the hood in the clamping seat;

[0022] The second step is position adjustment: by cooperating with the extrusion assembly and the inner cylinder, the rectangular support plate is locked in different areas of the arc-shaped slideway to achieve the purpose of inspecting the hood from different directions;

[0023] The third step is clamping and fixing: the fixing mechanism then drives the supporting beam and the hood to move toward the rectangular support plate, and the hood is firmly clamped during the process;

[0024] Step 4: Extrusion test: Finally, the clamped and fixed hood is subjected to strength test under the operation of the extrusion assembly.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] When the staff rotates the disc handle, the driving screw can be driven to rotate, thereby driving the supporting beam and the clamping seat installed on the supporting beam to slide toward the extrusion assembly against the hood to be inspected. During the sliding process, the driving gear will engage with the driving rack, thereby driving the bidirectional threaded rod to rotate to drive the bottom support plate and the upper pressure plate to clamp and fix the hood.

[0027] After the hood is clamped, under the action of the limit plate, only part of the telescopic end of the spring rod together with the rubber round block contacts the upper side of the hood to play a clamping role, while another part of the telescopic end of the spring rod does not contact the hood, but will move down with the upper pressure plate and be on one side of the hood, thereby limiting the rotation of the hood to prevent the hood from rotating due to force during strength testing.

[0028] After driving the rectangular support plate to move to different positions of the arc-shaped slide groove, the position of the rectangular support plate can be locked by rotating the threaded rod handle, so that the strength test of the hood can be carried out in different directions. By adapting the different angles of the rod installation to adjust the angle at which the contact plate contacts the hood, the driving cylinder can be started to realize the test of the hood at different angles. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is an overall schematic diagram of the present invention.

[0030] Figure 2 It is an exploded view of some components of the detection device of the present invention.

[0031] Figure 3 It is a schematic diagram of the fixing mechanism of the present invention.

[0032] Figure 4 It is an exploded view of some components of the fixing mechanism of the present invention.

[0033] Figure 5 It is a schematic diagram of some components of the drive assembly of the present invention.

[0034] Figure 6 It is an exploded view of some components of the drive assembly of the present invention.

[0035] Figure 7 It is a cross-sectional view of the drive assembly of the present invention (viewed from bottom to top).

[0036] Figure 8 The present invention Figure 7 A magnified image of area A.

[0037] Fig. 9 It is a schematic diagram of the extrusion assembly of the present invention.

[0038] Fig.10 It is a cross-sectional view (viewed from bottom to top) of the extrusion assembly of the present invention.

[0039] Fig.11 The present invention Fig.10 Enlarged view of area B.

[0040] Fig.12 It is a schematic diagram of an extruder of the present invention.

[0041] Fig.13 It is an exploded view of some components of the extruder of the present invention.

[0042] Fig.14 The monitoring unit of the present invention is schematically shown Figure 1 .

[0043] Fig.15 The present invention Fig.14 Enlarged view of area C.

[0044] Fig.16 It is an exploded view of some components of the monitoring unit of the present invention.

[0045] Fig.17 The monitoring unit of the present invention is schematically shown Figure 2 .

[0046] Fig.18 It is a flow chart of the detection method of the present invention.

[0047] Explanation of reference numerals: 1. test bench; 11. side panel; 12. hood; 2. test device; 21. supporting beam; 111. limiting slide; 22. I-shaped base; 23. clamping seat; 24. inner cylinder; 25. rectangular support plate; 101. arc slide; 3. fixing mechanism; 4. extrusion assembly; 31. bottom support plate; 32. upper pressure plate; 5. limiting unit; 231. inner groove; 232. limiting slide; 33. rubber splint; 51. limiting plate; 52. spring rod; 6. driving assembly; 311. rectangular hole; 321. round through hole; 53. rubber round block; 61. convex plate; 62. end ring; 63. bidirectional threaded rod; 322. inner threaded hole; 221. round rod hole; 64. driving gear; 65. assembly plate; 66. Drive rack; 67. End cross plate; 68. Disc handle; 671. Inner circular hole; 69. Drive screw; 211. Threaded through hole; 41. Threaded rod handle; 7. Extruder; 102. Arc mouth; 241. Threaded circular hole; 42. Locking block; 71. Drive cylinder; 72. Z-shaped block; 721. Inner tooth socket; 73. Adapter rod; 74. Contact plate; 8. Monitoring unit; 81. Spring member; 82. Monitoring plate; 741. Rectangular plate groove; 742. Inner concave bayonet; 83. U-shaped seat; 84. Inner circular shaft; 85. Winding wheel; 86. Spring; 831. Spring groove; 87. Square rod; 88. U-shaped block; 251. Limiting groove; 89. Reset spring; 851. Monitoring rope; 252. Scale value. DETAILED DESCRIPTION

[0048] The following is combined with Figure 1-Figure 18 This application is described in further detail.

[0049] The embodiments of the present application disclose a performance testing device and method for automobile accessories, which can firmly clamp the automobile hood to perform strength testing in different directions and angles, and are not restricted by the clamping force during the testing, thereby preventing the test results from being biased and providing a guarantee for the accuracy of the test. Embodiment 1

[0050] Reference Figure 1 and Figure 2 As shown, in the first aspect, the present application provides a performance testing device for automobile accessories, including a testing platform 1 and two side panels 11 symmetrically mounted on the testing platform 1, on which the engine hood 12 to be tested is placed, and a testing device 2 is provided on the testing platform 1; the testing device 2 can first clamp and fix the engine hood 12 to be tested, and then perform strength testing on it in different directions and angles.

[0051] The detection device 2 includes a supporting crossbeam 21 that is limitedly slidably arranged between the two side panels 11. A limiting slide groove 111 is provided on one side of the two side panels 11 for the supporting crossbeam 21 to slide and install. When the supporting crossbeam 21 is subjected to force, it can slide between the two side panels 11. A clamping seat 23 is installed in the middle of the supporting crossbeam 21 through an I-shaped base 22. A rectangular support plate 25 is slidably arranged on the detection platform 1 through an inner cylinder 24. The rectangular support plate 25 is fixedly connected to the inner cylinder 24, and the contact surface between the rectangular support plate 25 and the detection platform 1 is a rough surface with high friction. An arc-shaped slide groove 101 is provided on the detection platform 1 for the inner cylinder 24 to slide and install. A fixing mechanism 3 is provided on the clamping seat 23 for clamping and fixing the hood 12. An extrusion component 4 is provided on the rectangular support plate 25 for testing the extrusion strength of the hood 12 in different directions and angles after being firmly clamped.

[0052] When in use, first place the hood 12 to be inspected on the upper side of the two side panels 11, and make one side of the hood 12 in the clamping seat 23, then adjust the position of the rectangular support plate 25 in the arc slide groove 101 according to the needs of the inspection direction, and then lock the position of the rectangular support plate 25 by cooperating with the corresponding components in the extrusion assembly 4 and the inner cylinder 24; the hood 12 can be driven to move toward the rectangular support plate 25 through the fixing mechanism 3, and the hood 12 can be clamped and fixed in the process, and finally cooperate with the extrusion assembly 4 on the rectangular support plate 25 to realize the ability to squeeze the hood 12 from different directions to detect the overall strength of the hood 12.

[0053] Reference Figure 3 and Figure 4 As shown, specifically, the fixing mechanism 3 includes a bottom support plate 31, an upper pressure plate 32 and a limiting unit 5; the bottom support plate 31 and the upper pressure plate 32 are slidably arranged in the clamping seat 23 in turn, and the clamping seat 23 is provided with an inner groove 231 and a limiting slide 232 for the installation of the bottom support plate 31 and the adaptation to the upper pressure plate 32. Rubber splints 33 are installed on the upper side of the bottom support plate 31 and the lower side of the upper pressure plate 32. It should be noted that the thickness of the bottom support plate 31 is greater than the thickness of the upper pressure plate 32, and the rubber splint 33 has a certain deformability when it is resisted to avoid damage when clamping the hood 12; the limiting unit 5 is arranged on the clamping seat 23 and the upper pressure plate 32, and is used to limit the position and rotation angle of the hood 12.

[0054] Continue to refer to Figure 3 and Figure 4As shown, considering the need to limit the clamping position and angle of the hood 12 and to drive the hood 12 to move toward the extrusion assembly 4, the clamped and fixed hood 12 is separated from the two side panels 11 for strength testing. The limiting unit 5 includes a limit plate 51, a spring rod 52 and a driving assembly 6; the limit plate 51 vertically penetrates the bottom support plate 31 and the upper pressure plate 32 and is installed in the groove 231 in the clamping seat 23. The bottom support plate 31 and the upper pressure plate 32 are both penetrated by rectangular holes 311 for the limit plate 51 to penetrate. In this embodiment, preferably, twelve spring rods 52 are symmetrically penetrated in the upper pressure plate 32 at their telescopic ends downward, and the upper pressure plate 32 is symmetrically penetrated by twelve round through holes 321 for the installation of the spring rods 52. The telescopic ends of the spring rods 52 are provided with rubber round blocks 53 to increase the friction force of the telescopic ends of the spring rods 52. The driving assembly 6 is disposed between the clamping seat 23 and the two side panels 11 , and is used to drive the supporting beam 21 to slide between the two side panels 11 and drive the bottom supporting plate 31 and the upper pressing plate 32 to move relative to each other.

[0055] When the hood 12 to be inspected is placed on the upper side of the two side panels 11 and one side of the hood 12 is in the clamping seat 23, the side of the hood 12 is pressed against one side of the limit plate 51 to limit the clamping position of the hood 12, to prevent the telescopic ends of the twelve spring rods 52 from all pressing against the upper side of the hood 12 when the upper pressure plate 32 is forced to move downward.

[0056] Reference Figure 5 and Figure 6 As shown, in order to be able to drive the bottom support plate 31 and the upper pressure plate 32 in the process of driving the hood 12 to move so as to firmly clamp the hood 12, the driving assembly 6 includes a convex plate 61 installed on the upper side of the clamping seat 23, and the convex plate 61 is limited in rotation by an end ring 62 and is provided with a bidirectional threaded rod 63 that passes through the upper pressure plate 32 and the bottom support plate 31 through threads, and the lower end of the bidirectional threaded rod 63 penetrates the clamping seat 23 and the I-shaped base 22 and extends downward, and the upper pressure plate 32 and the bottom support plate 31 are both threadedly penetrated with internal threaded holes 322 that are compatible with the bidirectional threaded rod 63, and the I-shaped base 22 and the clamping seat 23 are both provided with round rod holes 221 for the ends of the bidirectional threaded rod 63 to penetrate and extend out.

[0057] When the bidirectional threaded rod 63 is forced to rotate, it can cooperate with the internal threaded holes 322 opened on the upper pressure plate 32 and the bottom support plate 31, and can drive the upper pressure plate 32 to move downward and the bottom support plate 31 to move upward. Since the bottom support plate 31 is closer to the hood 12, when the bidirectional threaded rod 63 is forced to rotate and drive the upper pressure plate 32 and the bottom support plate 31 to move relative to each other, the bottom support plate 31 will first resist and lift the hood 12, so that when the upper pressure plate 32 and the bottom support plate 31 move to a certain extent to clamp the hood 12, the hood 12 will be separated from the two side panels 11 after being clamped.

[0058] Reference Figure 7 As shown, the lower end of the bidirectional threaded rod 63 is sleeved with a driving gear 64, and a driving rack 66 intermittently meshing with the driving gear 64 is installed on one side of the side panel 11 through an assembly plate 65. The side panel 11, the assembly plate 65 and the driving rack 66 are fixedly connected. It should be noted that the driving rack 66 of different lengths can be replaced according to the thickness of the engine hood 12 to be tested, so as to ensure that when the supporting beam 21 is driven to move toward the extrusion assembly 4 by force, during the period of time when the driving gear 64 is meshing with the driving rack 66, the rotation of the bidirectional threaded rod 63 can be driven to just drive the bottom support plate 31 and the upper pressure plate 32 to clamp and fix the engine hood 12.

[0059] Reference Figure 7 and Figure 8 As shown, an end cross plate 67 is provided at one end of the two side enclosures 11 away from the rectangular support plate 25, and a disc handle 68 is inserted and rotatably provided on the end cross plate 67. An inner circular hole 671 is penetrated through the end cross plate 67 for the disc handle 68 to be inserted and installed, and a driving screw 69 with a thread passing through the supporting cross beam 21 is provided at one end of the disc handle 68, and the disc handle 68 and the driving screw 69 are fixedly connected; a threaded through hole 211 matching the driving screw 69 is penetrated through the supporting cross beam 21.

[0060] After placing the hood 12 to be tested, the staff can drive the driving screw 69 to rotate by turning the disc handle 68, and with the cooperation of the threaded through hole 211 opened on the supporting beam 21, the supporting beam 21 can be driven to move toward the extrusion assembly 4 installed on the rectangular support plate 25. During the process, due to the interference between the limit plate 51 and the side of the hood 12, the hood 12 can be driven to move synchronously. When it moves to the point where the driving gear 64 engages with the driving rack 66, the two-way threaded rod 63 can be rotated to drive the bottom support plate 31 to move upward to support the hood 12, while the upper pressure plate 32 moves downward to clamp and fix the hood 12; during the clamping process, due to the position restriction of the limit plate 51 on the hood 12, only a part of the telescopic end of the spring rod 52 will be in contact with the upper side of the hood 12, and the other telescopic parts of the spring rod 52 will follow the upper pressure plate 32 to descend and be on both sides of the limit plate 51, thereby limiting the rotation of the hood 12 and preventing the hood 12 from rotating when it is squeezed.

[0061] Reference Figures 9 to 11As shown, since it is necessary to perform strength testing of the clamped and fixed hood 12 in different directions and angles, the extrusion assembly 4 includes a threaded rod 41 and an extruder 7; the threaded rod 41 penetrates the test platform 1 and is threadedly rotated to be arranged at the bottom end of the inner cylinder 24, and an arc-shaped opening 102 connected with the arc-shaped slide groove 101 is opened on the test platform 1 for the installation of the threaded rod 41, and a threaded circular hole 241 adapted to the threaded rod 41 is threadedly opened on the inner cylinder 24, and a locking block 42 is sleeved on the threaded rod 41 located below the test platform 1. It should be noted that the upper side surface of the locking block 42 is the same as the lower side surface of the rectangular support plate 25, both of which are rough surfaces with high friction; when the position of the rectangular support plate 25 is adjusted, the locking block 42 can be driven to rise and contact with the lower side of the test platform 1 by rotating the threaded rod 41, and cooperate with the lower side of the rectangular support plate 25 to contact with the upper side of the test platform 1, thereby achieving the purpose of locking the position of the rectangular support plate 25. The squeezer 7 is disposed on the rectangular support plate 25 and is used to apply a squeezing force to the hood 12 .

[0062] Reference Fig.12 and Fig.13 As shown, in order to be able to resist and squeeze the side of the hood 12, the squeezer 7 includes a driving cylinder 71 arranged on a rectangular support plate 25, and a Z-shaped resistance block 72 is installed at the telescopic end of the driving cylinder 71, and an internal tooth socket 721 is penetrated through the Z-shaped resistance block 72. A resistance plate 74 is installed on the end of the Z-shaped resistance block 72 away from the driving cylinder 71 through an adapter rod 73. It should be noted that the adapter rod 73 is adapted to the internal shape of the internal tooth socket 721; the installation inclination angle of the resistance plate 74 can be adjusted by different insertion angles. When the driving cylinder 71 is started, the hood 12 can be squeezed from different directions and angles, so as to detect the overall strength of the hood 12 from different directions and angles, and the detection effect is achieved by observing the deformation and rebound degree of the hood 12. Embodiment 2

[0063] Reference Figures 14 to 16As shown, on the basis of the first embodiment, in order to facilitate the staff to understand in real time the change in the stroke value of the contact plate 74 after the contact with the hood 12 driven by the driving cylinder 71, and to facilitate the staff to control the intensity of the extrusion detection, a monitoring unit 8 is also provided on the rectangular support plate 25 and the contact plate 74. In this embodiment, the monitoring unit 8 preferably includes a monitoring plate 82 slidably arranged on one side of the contact plate 74 through four spring members 81, and the monitoring plate 82 is fixedly connected to the telescopic end of the spring member 81; a rectangular plate groove 741 and a concave bayonet 742 for installing the monitoring plate 82 and the spring member 81 are provided on the contact plate 74, and a U-shaped seat 83 is installed on the side of the contact plate 74 away from the monitoring plate 82, and a winding wheel 85 is rotatably provided on the U-shaped seat 83 through an inner circular shaft 84, and a spring spring 86 is sleeved on the inner circular shaft 84, and the spring spring 86 can drive the winding wheel 85 to rotate through the inner circular shaft 84. The U-shaped seat 83 is provided with a spring slot 831 for installing the clockwork spring 86 .

[0064] When the driving cylinder 71 operates to drive the contact plate 74 to apply a contacting and squeezing force to the hood 12, the monitoring plate 82 will be the first to contact the hood 12. After contacting the hood 12, the monitoring plate 82 will be driven to shrink into the rectangular plate groove 741 and contact the hood 12 parallel to the outer side of the contact plate 74.

[0065] Reference Fig.17 As shown, a U-shaped block 88 is slidably provided on the rectangular support plate 25 through a square rod 87 limiting clamp, and a limiting groove 251 is provided on the rectangular support plate 25 for installing the square rod 87 and the U-shaped block 88. A reset spring 89 is sleeved on the square rod 87, and one end of the reset spring 89 is fixedly connected to the U-shaped block 88, and always has a driving force to drive the U-shaped block 88 to slide in the direction of the driving cylinder 71. It should be noted that the force of the reset spring 89 is greater than the driving force of the clockwork spring 86; a monitoring rope 851 is wound on the winding wheel 85, and one end of the monitoring rope 851 passes through the monitoring plate 82 and the rectangular plate groove 741 and is fixedly connected to the U-shaped block 88, and a scale value 252 is also provided on the upper side of the rectangular support plate 25 on one side of the limiting groove 251.

[0066] The driving cylinder 71 operates to drive the contact plate 74 to move toward the hood 12. Before it contacts the hood 12, the force of the spring spring 86 is less than the force of the return spring 89, so the U-shaped block 88 remains stationary. At this time, the reel 85 rotates to release the monitoring rope 851. Once the monitoring plate 82 contacts the hood 12 and shrinks into the rectangular plate groove 741, the monitoring rope 851 in the rectangular plate groove 741 will be clamped, so that the U-shaped block 88 can be pulled to slide by the monitoring rope 851, and the sliding value can be observed by the scale value 252. This makes it easy for the staff to control the extrusion strength of the driving cylinder 71 to drive the contact plate 74 to the hood 12.

[0067] Reference Fig.18 As shown, on the other hand, the present application also discloses a performance testing method for automobile accessories, and the steps of the testing method are as follows:

[0068] The first step is to place the test piece: first, place the car hood 12 to be tested on the upper side of the two side panels 11, and make one side of the hood 12 in the clamping seat 23; and make the side of the hood 12 contact one side of the limit plate 51 to limit the clamping position of the hood 12.

[0069] The second step is position adjustment: through the cooperation between the extrusion component 4 and the inner cylinder 24, the rectangular support plate 25 is locked in different areas of the arc-shaped slide groove 101, so as to achieve the purpose of detecting the hood 12 from different directions; specifically, the locking block 42 is driven to rise and abut against the lower side of the inspection platform 1 by rotating the threaded rod handle 41, and the rectangular support plate 25 is clamped to achieve the purpose of locking the position of the rectangular support plate 25.

[0070] The third step is clamping and fixing: the fixing mechanism 3 is then used to drive the supporting beam 21 and the hood 12 to move toward the rectangular support plate 25, so that the hood 12 is firmly clamped during the process; the supporting beam 21 can be driven to move toward the rectangular support plate 25 by rotating the disc handle 68, and during the movement, the driving gear 64 is engaged with the driving rack 66, so that the rotation of the bidirectional threaded rod 63 can drive the bottom support plate 31 and the upper pressure plate 32 to clamp and fix the hood 12; and the telescopic part of the part of the spring rod 52 will be on both sides of the limit plate 51 to limit the rotation of the hood 12.

[0071] Step 4: Extrusion test: Finally, the clamped and fixed hood 12 is tested for strength under the operation of the extrusion assembly 4; when the driving cylinder 71 operates to drive the contact plate 74 to move toward the hood 12, it will drive the reel 85 to rotate and release the monitoring rope 851. After the monitoring plate 82 contacts the hood 12 and shrinks into the rectangular plate groove 741, the monitoring rope 851 in the rectangular plate groove 741 will be clamped. At this time, the monitoring rope 851 pulls the U-shaped block 88 to slide, and the sliding value can be observed by the scale value 252. This is to facilitate the staff to control the extrusion strength applied to the hood 12.

[0072] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A performance testing device for automobile parts, comprising a testing platform (1) and two side panels (11) symmetrically mounted on the testing platform (1), wherein an engine hood (12) to be tested is placed on the two side panels (11), characterized in that: The detection platform (1) is provided with a detection device (2); The detection device (2) comprises a supporting crossbeam (21) which is limitedly slidably arranged between the two side panels (11), a limiting sliding groove (111) for slidingly installing the supporting crossbeam (21) is provided on one side of the two side panels (11), a clamping seat (23) is installed in the middle of the supporting crossbeam (21) through an I-shaped base (22), a rectangular supporting plate (25) is slidably arranged on the detection platform (1) through an inner cylinder (24), an arc-shaped sliding groove (101) is provided on the detection platform (1) for slidingly installing the inner cylinder (24), a fixing mechanism (3) is provided on the clamping seat (23), and an extrusion assembly (4) is provided on the rectangular supporting plate (25); The fixing mechanism (3) comprises a bottom supporting plate (31), an upper pressing plate (32) and a limiting unit (5); the bottom supporting plate (31) and the upper pressing plate (32) are sequentially slidably arranged in a clamping seat (23) in an upper and lower limited manner; the clamping seat (23) is provided with an inner groove (231) and a limiting sliding opening (232) for installing the bottom supporting plate (31) and matching with the upper pressing plate (32); the upper side of the bottom supporting plate (31) and the lower side of the upper pressing plate (32) are both provided with rubber clamps (33); the limiting unit (5) is arranged on the clamping seat (23) and the upper pressing plate (32); The limiting unit (5) comprises a limiting plate (51), a spring rod (52) and a driving assembly (6); the limiting plate (51) vertically penetrates the bottom supporting plate (31) and the upper pressing plate (32) upwards and is installed in a groove (231) in the clamping seat (23); the bottom supporting plate (31) and the upper pressing plate (32) are both provided with rectangular holes (311) for the limiting plate (51) to penetrate; a plurality of telescopic ends of the spring rods (52) are symmetrically penetrated in the upper pressing plate (32) downwards; a plurality of round through holes (321) for the spring rods (52) to be installed are symmetrically penetrated in the upper pressing plate (32); a rubber round block (53) is provided at the telescopic end of the spring rod (52); and the driving assembly (6) is arranged between the clamping seat (23) and the two side panels (11); The driving assembly (6) comprises a convex plate (61) mounted on the upper side of the clamping seat (23); the convex plate (61) is provided with a bidirectional threaded rod (63) threadedly penetrating the upper pressure plate (32) and the bottom support plate (31) through an end ring (62) for limited rotation; the lower end of the bidirectional threaded rod (63) penetrates the clamping seat (23) and the I-shaped base (22) and extends downward; the upper pressure plate (32) and the bottom support plate (31) are threadedly penetrated with an internal threaded hole (322) adapted to the bidirectional threaded rod (63); the I-shaped base (22) and the clamping seat (23) are provided with a round rod hole (221) for the end of the bidirectional threaded rod (63) to penetrate and extend out.

2. A performance testing device for automobile accessories according to claim 1, characterized in that: The lower end of the bidirectional threaded rod (63) is sleeved with a driving gear (64), and a driving rack (66) intermittently meshing with the driving gear (64) is installed on one side of the side panel (11) through an assembly plate (65).

3. A performance testing device for automobile parts according to claim 2, characterized in that: An end cross plate (67) is provided at one end of the two side panels (11) away from the rectangular support plate (25), a disc handle (68) is inserted and rotatably provided on the end cross plate (67), an inner circular hole (671) is penetrated through the end cross plate (67) for the disc handle (68) to be inserted and installed, one end of the disc handle (68) is provided with a driving screw (69) threadedly penetrating the supporting cross beam (21), and a threaded through hole (211) adapted to the driving screw (69) is threadedly penetrated through the supporting cross beam (21).

4. A performance testing device for automobile parts according to claim 1, characterized in that: The extrusion assembly (4) comprises a threaded rod (41) and an extruder (7); the threaded rod (41) penetrates the detection platform (1) and is threadedly rotatably arranged at the bottom end of the inner cylinder (24); an arc-shaped opening (102) is penetrated on the detection platform (1) and is connected to the arc-shaped slide groove (101) for the threaded rod (41) to be installed; a threaded circular hole (241) is threadedly opened on the inner cylinder (24) and is adapted to the threaded rod (41); a locking block (42) is sleeved on the threaded rod (41) located below the detection platform (1); and the extruder (7) is arranged on a rectangular support plate (25).

5. A performance testing device for automobile parts according to claim 4, characterized in that: The extruder (7) comprises a driving cylinder (71) arranged on a rectangular support plate (25), a Z-shaped stop block (72) being installed at the telescopic end of the driving cylinder (71), and an internal tooth insertion hole (721) is provided through the Z-shaped stop block (72).

6. A performance testing device for automobile parts according to claim 5, characterized in that: An end of the Z-shaped stop block (72) away from the driving cylinder (71) is provided with a stop plate (74) through an adapter rod (73).

7. A performance testing method for automobile parts, characterized in that: Using the performance testing device for automobile parts according to any one of claims 1 to 6, the operating steps are as follows: The first step is to place the test piece: first, the automobile hood (12) to be tested is placed on the upper side of the two side panels (11), and one side of the hood (12) is placed in the clamping seat (23); The second step is position adjustment: by cooperating the extrusion assembly (4) with the inner cylinder (24), the rectangular support plate (25) is locked in different areas of the arc-shaped slide groove (101), so as to achieve the purpose of detecting the engine cover (12) from different directions; The third step is clamping and fixing: the fixing mechanism (3) is then used to drive the supporting beam (21) and the engine cover (12) to move toward the rectangular support plate (25), and the engine cover (12) is firmly clamped during the process; Step 4: Extrusion test: Finally, the clamped and fixed engine cover (12) is subjected to strength test under the operation of the extrusion assembly (4).

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