Tension testing machine for automobile parts and use method of tension testing machine

Abstract

The invention discloses a tension testing machine for automobile parts and a use method thereof, and belongs to the technical field of tension testing machines. A tensile testing machine for automobile parts comprises a machine base provided with a testing cavity used for tensile testing, and further comprises a plurality of tensile testing parts which are arranged in the testing cavity at equal intervals and used for conducting tensile testing on the automobile parts; a plurality of groups of separation assemblies are arranged, and each group of separation assembly is arranged between two adjacent tension testing parts; the folding cover plate is arranged on the front side of the machine base and is used for shielding the test cavity; according to the automobile part tension testing device, tension testing can be carried out on multiple automobile parts at the same time, the separation assemblies are arranged, so that the automobile parts are mutually independent and do not interfere with one another, the falling or fractured automobile parts are prevented from influencing tension testing of other surrounding automobile parts, in addition, the folding cover plate is arranged to effectively shield and cover the testing cavity, and the testing efficiency is improved. And the safe working environment of personnel is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of tensile testing machines, and in particular to a tensile testing machine for automobile parts and a use method thereof. Background Art

[0002] With the increasingly fierce competition in the automotive parts processing market and the continuous upgrading and application of technology, the trend of supporting automotive parts processing systems and modular supply is in the ascendant, the transfer speed of the automotive parts processing industry is accelerating, and there are many types of automotive parts. In the process of automotive parts production, performance testing of automotive parts is also an important link.

[0003] When an existing tensile testing machine performs a tensile test on an automobile part, it is generally only capable of performing a tensile test on one part, and is unable to perform a tensile test on multiple parts at the same time. In order to ensure the accuracy of the tensile test results, multiple parts need to be tensile tested. Performing tensile tests on multiple automobile parts in sequence will reduce the efficiency of the tensile test; and during the test, the automobile parts may detach from the fixture or break due to the tensile force to produce debris, causing harm to the surrounding operators. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art and to propose a tensile testing machine for automobile parts and a method of using the same.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A tensile testing machine for automobile parts, comprising a machine base, a test chamber for tensile testing is provided on the machine base, and further comprising:

[0007] A tensile testing part, wherein a plurality of tensile testing parts are provided and are equidistantly arranged in the test chamber, and are used to perform tensile testing on automobile parts;

[0008] A partition assembly, wherein the partition assembly is provided in a plurality of groups, and each group of the partition assembly is provided between two adjacent tensile test parts; and

[0009] A folding cover plate, which is arranged at the front side of the machine base and is used to shield the test cavity;

[0010] Wherein, a traction rope is arranged between the folding cover plate and the partition assembly, and an auxiliary support assembly which is movable against the partition assembly is also arranged in the test chamber.

[0011] Preferably, the tension testing part includes an upper positioning seat and a lower positioning seat, the lower positioning seat is fixed to the bottom inner wall of the test chamber, a hydraulic cylinder for driving the upper positioning seat to rise and fall is arranged on the top of the machine base, and a tension sensor is arranged between the plunger rod of the hydraulic cylinder and the upper positioning seat.

[0012] Preferably, the upper positioning seat and the lower positioning seat have the same structure, both comprising a U-shaped plate, a screw threadedly connected to both ends of the U-shaped plate, and a knob and a clamping plate arranged at both ends of the screw, wherein the clamping plate is slidably connected to the U-shaped plate.

[0013] Preferably, the partition assembly includes a rotating rod arranged on the top of the base, a flexible metal sheet wrapped around the rotating rod, a rotating shaft rotatably connected to the bottom of the base, a first reel arranged on the rotating shaft, a pull rope wrapped around the first reel and connected to the end of the flexible metal sheet, and a driving motor fixed in the base for driving the rotating shaft to rotate, and the inner wall of the test chamber is provided with a first sliding groove for the flexible metal sheet to slide.

[0014] Preferably, the partition assembly also includes a threaded rod rotatably connected to the machine base and an upper bevel gear and a lower bevel gear fixed at both ends of the threaded rod, an active bevel gear meshing with the lower bevel gear is provided on the rotating shaft, and a driven bevel gear meshing with the upper bevel gear is provided on the rotating rod.

[0015] Preferably, a second slide groove is provided on the machine base, and the folding cover includes a first slider fixed in the second slide groove, a third slider slidably connected in the second slide groove, and a plurality of second sliders slidably connected between the first slider and the third slider, and two hinged plate bodies are movably hinged between the first slider and the second slider, between two adjacent second sliders, and between the second slider and the third slider.

[0016] Preferably, a double-wire drum is provided on the rotating shaft, the traction rope is wound around and connected to the double-wire drum and connected to the third slider, and the traction rope includes a first rope body connected to the upper side of the third slider and a second rope body connected to the lower side of the third slider.

[0017] Preferably, a limiting block is fixedly provided on the hinged plate body, and a limiting groove which is plugged into the flexible metal sheet is formed on the limiting block.

[0018] Preferably, the auxiliary support assembly includes a receiving groove opened on the inner wall of the test chamber, a plurality of swing rods rotatably connected to the receiving groove through a first pin shaft, an upper block rod rotatably connected to the upper side of the swing rod through a second pin shaft, and a lower block rod rotatably connected to the lower side of the swing rod through a third pin shaft, the upper block rod is provided with a slot matching with the lower block rod, the first pin shaft and the second pin shaft are both sleeved with torsion springs, and the threaded rod is threaded with a movable pressure plate that movably abuts against the end of the swing rod, and the movable pressure plate slides in the machine base.

[0019] The present invention also discloses a method for using a tensile testing machine for automobile parts, comprising the following steps:

[0020] S1: Fix multiple automobile parts of the same size to be tested through the tensile test part, and the upper positioning seat cooperates with the lower positioning seat to position the automobile parts;

[0021] S2: Then the driving motor is controlled to run, and the output shaft of the driving motor drives the rotating shaft to rotate, and when the rotating shaft rotates, the first reel and the double-line reel rotate;

[0022] When the rotating shaft drives the first reel to rotate, the pull rope is reeled in, the active bevel gear on the rotating shaft meshes with the lower bevel gear on the threaded rod for transmission, and the lower bevel gear drives the upper bevel gear through the threaded rod to mesh with the driven bevel gear on the rotating rod for transmission, so that the rotating rod rotates and cooperates with the pull rope to pull down the flexible metal sheet, and the flexible metal sheet moves down along the second slide groove on one side of the test cavity, so that the flexible metal sheet separates two adjacent tension test parts;

[0023] The double-wire drum reels up the second rope body of the traction rope and releases the first rope body, so that the third slider in the second slide groove moves downward, and the third slider drives the second slider to move downward in the second slide groove through the hinged plate body, so that the multiple hinged plates are in the same plane and shield the test cavity. When the hinged plate body is placed horizontally, the limit block arranged on the upper side thereof is engaged with the flexible metal sheet, so as to limit the end of the flexible metal sheet away from the first slide groove;

[0024] S3: When the threaded rod rotates, the movable pressure plate threadedly connected thereto moves up, and the movable pressure plate no longer abuts against one end of the swing rod. The swing rod rotates downward under the action of the torsion spring at the first pin shaft. After the swing rod no longer abuts against the inner wall of the accommodating groove, the upper stopper rod on the upper side of the swing rod quickly flips and resets under the action of the torsion spring at the second pin shaft, and the lower stopper rod on the lower side of the swing rod automatically droops and flips under the action of its own gravity. The drooping and flipped lower stopper rod is clamped with the upper stopper rod on the lower side swing rod, and the flipped and reset upper stopper rod is clamped with the drooping lower stopper rod at the upper side swing rod, so that the swing rod cooperates with the clamped upper stopper rod and the lower stopper rod to protect the flexible metal sheet;

[0025] S4: Finally, the hydraulic cylinder is controlled to operate so that the hydraulic cylinder drives the automobile parts being positioned to be pulled upward through the upper positioning seat, and the tension sensor detects the tension received.

[0026] Compared with the prior art, the present invention provides a tensile testing machine for automobile parts and a method of using the same, which has the following beneficial effects:

[0027] 1. The tensile testing machine for automobile parts and the method of using the same can simultaneously perform tensile tests on multiple automobile parts by setting multiple sets of tensile testing parts, thereby ensuring the working efficiency of the tensile test and the accuracy of the test results. The setting of the separation components makes each automobile part independent of each other and does not interfere with each other, thus preventing the automobile parts that fall off or break from affecting the tensile tests of other automobile parts around them, thereby ensuring the normal progress of the tensile test.

[0028] 2. The tensile testing machine for automobile parts and the method of using the same can facilitate the installation and fixation of automobile parts by rolling up the flexible metal sheet on the top of the machine base when not in use, thereby ensuring the operating space when positioning the automobile parts and avoiding the fixed setting of the partition assembly between two adjacent tensile testing parts, which leads to narrow space around the tensile testing parts, difficult operation, and increased difficulty for workers in tensile testing of automobile parts.

[0029] 4. The tensile testing machine for automobile parts and the method of using the same, when controlling the partition assembly to separate two adjacent tensile test parts, the folding cover automatically unfolds and covers the test cavity, which reduces the probability of internal materials flying out of the test cavity and facilitates material recovery, and ensures a safe working environment for personnel.

[0030] 5. The tensile testing machine for automobile accessories and the method of using the same, by enabling the limit block to clamp the flexible metal sheet when the folding cover is unfolded, facilitates improving the stability of the flexible metal sheet away from the side of the first slide groove, improves the separation and shielding stability of the flexible metal sheet, and the swing rod cooperates with the upper and lower baffles after clamping to protect the flexible metal sheet, enhances the stability of the flexible metal sheet structure, avoids excessive impact on the flexible metal sheet when the automobile tensile accessories are stressed and cracked, and ensures the service life of the equipment structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ;

[0032] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ;

[0033] Figure 3 It is a structural schematic diagram of the lower positioning seat of the present invention;

[0034] Figure 4 It is a structural schematic diagram of the folding cover plate of the present invention;

[0035] Figure 5 It is a schematic diagram of a partial cross-sectional structure of the present invention Figure 1 ;

[0036] Figure 6 It is a schematic diagram of a partial cross-sectional structure of the present invention Figure 2 ;

[0037] Figure 7 For the present invention Figure 6 A partial enlarged structural diagram of the middle part;

[0038] Figure 8 For the present invention Figure 6 A schematic diagram of the partially enlarged structure of the middle B part;

[0039] Fig. 9 It is a schematic diagram of the external structure of the rotating rod of the present invention;

[0040] Fig.10 It is a schematic diagram of the structure of the swing lever of the present invention when it is unfolded;

[0041] Fig.11 It is a schematic diagram of the structure of the swing rod of the present invention when it is stored.

[0042] In the figure: 1, machine base; 101, test chamber; 2, tension test part; 201, upper positioning seat; 202, lower positioning seat; 203, hydraulic cylinder; 204, U-shaped plate; 2041, screw; 2042, knob; 2043, clamp; 3, folding cover; 301, first slider; 302, second slider; 303, third slider; 304, hinged plate; 4, traction rope; 401, first rope body; 402, second rope body; 5, rotating rod; 501, flexible metal Attached piece; 502, first slide groove; 503, driven bevel gear; 6, rotating shaft; 601, first reel; 602, pull rope; 603, driving motor; 604, active bevel gear; 7, threaded rod; 701, upper bevel gear; 702, lower bevel gear; 8, second slide groove; 9, double-line reel; 10, limit block; 1001, limit groove; 11, accommodating groove; 111, swing rod; 112, upper stop rod; 1121, card slot; 113, lower stop rod; 12, movable pressure plate. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0044] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0045] Example 1: Reference Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 A tensile testing machine for automobile parts comprises a machine base 1, a test chamber 101 for tensile testing is provided on the machine base 1, and further comprises:

[0046] A tension testing part 2, wherein a plurality of tension testing parts 2 are provided and are equidistantly arranged in the test chamber 101, and are used for performing tension testing on automobile parts;

[0047] A partition assembly, wherein the partition assembly is provided in multiple groups, and each group of the partition assembly is provided between two adjacent tensile test parts 2; and

[0048] A folding cover plate 3, which is arranged at the front side of the base 1 and is used to shield the test chamber 101;

[0049] A traction rope 4 is provided between the folding cover plate 3 and the partition assembly, and an auxiliary support assembly that is movably opposed to the partition assembly is also provided in the test chamber 101 .

[0050] Furthermore, the tension testing part 2 includes an upper positioning seat 201 and a lower positioning seat 202. The lower positioning seat 202 is fixed to the bottom inner wall of the test chamber 101. A hydraulic cylinder 203 for driving the upper positioning seat 201 to rise and fall is provided on the top of the machine base 1. A tension sensor is provided between the plunger rod of the hydraulic cylinder 203 and the upper positioning seat 201.

[0051] Specifically, multiple automobile accessories of the same size to be tested are fixed by the tension testing part 2, and the upper positioning seat 201 cooperates with the lower positioning seat 202 to position the automobile accessories. Then, the action of the partition component is controlled so that each automobile accessory is independent of each other and does not interfere with each other during the tension test, so as to avoid the automobile accessories that fall off or break from affecting the tension test of other surrounding automobile accessories. When the partition component is working, the folding cover plate 3 is driven to unfold by the traction rope 4. The setting of the folding cover plate 3 effectively shields and covers the test chamber 101 to ensure a safe working environment for personnel. Then, the hydraulic cylinder 203 is controlled to operate so that the hydraulic cylinder 203 drives the automobile accessories in positioning to be pulled up through the upper positioning seat 201, and the tension sensor detects the tension received, so as to realize the tension test of multiple automobile accessories at the same time, and ensure the working efficiency of the tension test and the accuracy of the test results.

[0052] Example 2: Reference Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6, a tensile testing machine for automotive accessories, based on Example 1, further, the upper positioning seat 201 and the lower positioning seat 202 have the same structure, both including a U-shaped plate 204, a screw 2041 threadedly connected to both ends of the U-shaped plate 204, and a knob 2042 and a clamping plate 2043 arranged at both ends of the screw 2041, and the clamping plate 2043 is slidably connected to the U-shaped plate 204.

[0053] Specifically, when the upper positioning seat 201 and the lower positioning seat 202 fix the automobile accessories, by rotating the knob 2042, the knob 2042 drives the screw 2041 to rotate relative to the U-shaped plate 204, so that the screw 2041 drives the clamping plate 2043 to rotate on the U-shaped plate 204, and the clamping plates 2043 on both sides of the U-shaped plate 204 are relatively close, thereby fixing and limiting the automobile accessories.

[0054] Example 3: Reference Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Fig. 9 , a tensile testing machine for automobile accessories, based on Example 2, further, the partition component includes a rotating rod 5 arranged on the top of the base 1, a flexible metal sheet 501 wound and connected to the rotating rod 5, a rotating shaft 6 rotatably connected to the bottom of the base 1, a first reel 601 arranged on the rotating shaft 6, a pull rope 602 wound and connected to the first reel 601 and connected to the end of the flexible metal sheet 501, and a driving motor 603 fixed in the base 1 for driving the rotating shaft 6 to rotate, and a first slide groove 502 for sliding the flexible metal sheet 501 is opened on the inner wall of the test cavity 101.

[0055] Furthermore, the partition assembly also includes a threaded rod 7 rotatably connected to the machine base 1 and an upper bevel gear 701 and a lower bevel gear 702 fixed at both ends of the threaded rod 7, an active bevel gear 604 meshing with the lower bevel gear 702 is provided on the rotating shaft 6, and a driven bevel gear 503 meshing with the upper bevel gear 701 is provided on the rotating rod 5.

[0056] Specifically, when the separation assembly is working, the driving motor 603 is controlled to operate, and the output shaft of the driving motor 603 drives the rotating shaft 6 to rotate, and when the rotating shaft 6 rotates, the first reel 601 rotates;

[0057] When the rotating shaft 6 drives the first reel 601 to rotate, the pull rope 602 is reeled up, the active bevel gear 604 on the rotating shaft 6 is meshed with the lower bevel gear 702 on the threaded rod 7 for transmission, and the lower bevel gear 702 drives the upper bevel gear 701 through the threaded rod 7 to mesh with the driven bevel gear 503 on the rotating rod 5 for transmission, so that the rotating rod 5 rotates and cooperates with the pull rope 602 to pull down the flexible metal sheet 501, and the flexible metal sheet 501 moves down along the second slide groove 8 on one side of the test cavity 101, so that the flexible metal sheet 501 separates the two adjacent tension test parts 2;

[0058] By rolling up the flexible metal sheet 501 on the top of the base 1 when not in use, the automobile accessories can be conveniently installed and fixed, ensuring the operating space when positioning the automobile accessories, avoiding the fixed setting of the partition assembly between two adjacent tensile testing parts 2, resulting in a narrow space around the tensile testing part 2, difficult operation, and increased difficulty for staff to perform tensile testing on automobile accessories, thereby improving the efficiency of tensile testing of automobile accessories.

[0059] Example 4: Reference Figure 1 , Figure 2 , Figure 4 and Figure 6 , a tensile testing machine for automobile accessories, based on Example 3, further, a second slide groove 8 is opened on the machine base 1, the folding cover 3 includes a first slider 301 fixed in the second slide groove 8, a third slider 303 slidably connected in the second slide groove 8, and a plurality of second sliders 302 slidably connected between the first slider 301 and the third slider 303, and two hinged plate bodies 304 are movably hinged between the first slider 301 and the second slider 302, between two adjacent second sliders 302, and between the second slider 302 and the third slider 303.

[0060] Furthermore, a double-wire drum 9 is provided on the rotating shaft 6, the traction rope 4 is wound and connected to the double-wire drum 9 and connected to the third slider 303, and the traction rope 4 includes a first rope body 401 connected to the upper side of the third slider 303 and a second rope body 402 connected to the lower side of the third slider 303.

[0061] Specifically, by controlling the operation of the driving motor 603, the output shaft of the driving motor 603 drives the rotating shaft 6 to rotate, and when the rotating shaft 6 rotates, the double-line reel 9 rotates, and the double-line reel 9 reels the second rope body 402 of the traction rope 4 and releases the first rope body 401, so that the third slider 303 in the second slide groove 8 moves downward, and the third slider 303 drives the second slider 302 to move downward in the second slide groove 8 through the hinged plate body 304, so that multiple hinged plate bodies 304 are in the same plane and cover the test cavity 101. On the one hand, the probability of the material inside the test cavity 101 flying out of the test cavity 101 during the tensile test is reduced, which is convenient for material recovery. On the other hand, a safe working environment for personnel is ensured.

[0062] Example 5: Reference Figure 1 , Figure 2 and Figure 4 , a tensile testing machine for automobile parts, based on Example 4, further, a limit block 10 is fixedly provided on the hinged plate body 304, and a limit groove 1001 is opened on the limit block 10 to be plugged with the flexible metal sheet 501.

[0063] Specifically, when the double-wire reel 9 reels in the second rope body 402 of the traction rope 4 and releases the first rope body 401, the third slider 303 in the second slide groove 8 moves downward, and the third slider 303 drives the second slider 302 to move downward in the second slide groove 8 through the hinged plate body 304, so that the multiple hinged plate bodies 304 are in the same plane and block the test cavity 101. When the hinged plate body 304 is placed horizontally, the limit block 10 arranged on the upper side thereof is engaged with the flexible metal sheet 501, limiting the end of the flexible metal sheet 501 away from the first slide groove 502, so as to improve the stability of the flexible metal sheet 501 away from the side of the first slide groove 502, and improve the separation and shielding stability of the flexible metal sheet 501.

[0064] Example 6: Reference Figure 1 , Figure 2 , Figure 5 , Figure 6 , Fig.10 and Fig.11 , a tensile testing machine for automobile parts, based on Example 5, further, the auxiliary support assembly includes a receiving groove 11 opened on the inner wall of the test cavity 101, a plurality of swing rods 111 rotatably connected to the receiving groove 11 through a first pin shaft, an upper block rod 112 rotatably connected to the upper side of the swing rod 111 through a second pin shaft, and a lower block rod 113 rotatably connected to the lower side of the swing rod 111 through a third pin shaft, the upper block rod 112 is provided with a slot 1121 matched with the lower block rod 113, the first pin shaft and the second pin shaft are both sleeved with torsion springs, and a movable pressure plate 12 is threadedly provided on the threaded rod 7 and movably abuts against the end of the swing rod 111, and the movable pressure plate 12 slides in the machine base 1.

[0065] Specifically, when the partition assembly works, the movable pressure plate 12 threadedly connected to the threaded rod 7 rotates and moves upward, and the movable pressure plate 12 no longer abuts against one end of the swing rod 111. The swing rod 111 rotates downward under the action of the torsion spring at the first pin shaft. After the swing rod 111 no longer abuts against the inner wall of the accommodating groove 11, the upper stopper 112 on the upper side of the swing rod 111 quickly flips and resets under the action of the torsion spring at the second pin shaft, and the lower stopper 113 on the lower side of the swing rod 111 automatically droops and flips down under the action of its own gravity. The swing rod 111 cooperates with the upper and lower baffle rods 112 and 113 after being clamped to protect the flexible metal sheet 501, thereby enhancing the structural stability of the flexible metal sheet 501 and avoiding excessive impact on the flexible metal sheet 501 when the automobile tension accessories are subjected to stress and cracking, thereby ensuring the service life of the equipment structure.

[0066] The present invention also discloses a method for using a tensile testing machine for automobile parts, comprising the following steps:

[0067] S1: Fix multiple automobile parts of the same size to be tested through the tensile testing part 2, and the upper positioning seat 201 cooperates with the lower positioning seat 202 to position the automobile parts;

[0068] S2: Then the driving motor 603 is controlled to operate, and the output shaft of the driving motor 603 drives the rotating shaft 6 to rotate, and when the rotating shaft 6 rotates, the first reel 601 and the double-line reel 9 rotate;

[0069] When the rotating shaft 6 drives the first reel 601 to rotate, the pull rope 602 is reeled up, the active bevel gear 604 on the rotating shaft 6 is meshed with the lower bevel gear 702 on the threaded rod 7 for transmission, and the lower bevel gear 702 drives the upper bevel gear 701 through the threaded rod 7 to mesh with the driven bevel gear 503 on the rotating rod 5 for transmission, so that the rotating rod 5 rotates and cooperates with the pull rope 602 to pull down the flexible metal sheet 501, and the flexible metal sheet 501 moves down along the second slide groove 8 on one side of the test cavity 101, so that the flexible metal sheet 501 separates the two adjacent tension test parts 2;

[0070] The double-line drum 9 reels the second rope body 402 of the traction rope 4 and releases the first rope body 401, so that the third slider 303 in the second slide groove 8 moves downward, and the third slider 303 drives the second slider 302 to move downward in the second slide groove 8 through the hinged plate body 304, so that the multiple hinged plate bodies 304 are in the same plane and shield the test cavity 101. When the hinged plate body 304 is placed horizontally, the limit block 10 set on the upper side thereof is engaged with the flexible metal sheet 501, and the end of the flexible metal sheet 501 away from the first slide groove 502 is limited;

[0071] S3: When the threaded rod 7 rotates, the movable pressure plate 12 threadedly connected thereto moves upward, and the movable pressure plate 12 no longer abuts against one end of the swing rod 111. The swing rod 111 rotates downward under the action of the torsion spring at the first pin shaft. After the swing rod 111 no longer abuts against the inner wall of the accommodating groove 11, the upper stop rod 112 on the upper side of the swing rod 111 quickly flips and resets under the action of the torsion spring at the second pin shaft, and the lower stop rod 113 on the lower side of the swing rod 111 automatically droops and flips under the action of its own gravity, and the drooping and flipped lower stop rod 113 is clamped with the upper stop rod 112 on the lower side swing rod 111, and the flipped and reset upper stop rod 112 is clamped with the lower stop rod 113 drooping at the upper side swing rod 111, so that the swing rod 111 cooperates with the clamped upper stop rod 112 and the lower stop rod 113 to protect the flexible metal sheet 501;

[0072] S4: Finally, the hydraulic cylinder 203 is controlled to operate, so that the hydraulic cylinder 203 drives the automobile accessory being positioned to be pulled upward through the upper positioning seat 201, and the tension sensor detects the tension received.

[0073] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A tensile testing machine for automobile parts, comprising a machine base (1), wherein the machine base (1) is provided with a test chamber (101) for tensile testing, characterized in that: Also includes: A tensile testing part (2), wherein a plurality of the tensile testing parts (2) are arranged equidistantly in the test chamber (101) and are used to perform a tensile test on an automobile part; A partition assembly, wherein the partition assembly is provided in a plurality of groups, and each group of the partition assembly is provided between two adjacent tensile test parts (2); and A folding cover plate (3), the folding cover plate (3) being arranged on the front side of the machine base (1) and used for shielding the test chamber (101); A traction rope (4) is provided between the folding cover plate (3) and the partition assembly, and an auxiliary support assembly that is movably opposed to the partition assembly is also provided in the test chamber (101).

2. A tensile testing machine for automobile parts according to claim 1, characterized in that: The tension test part (2) comprises an upper positioning seat (201) and a lower positioning seat (202); the lower positioning seat (202) is fixedly mounted on the bottom inner wall of the test chamber (101); a hydraulic cylinder (203) for driving the upper positioning seat (201) to rise and fall is arranged on the top of the machine base (1); a tension sensor is arranged between the plunger rod of the hydraulic cylinder (203) and the upper positioning seat (201).

3. A tensile testing machine for automobile parts according to claim 2, characterized in that: The upper positioning seat (201) and the lower positioning seat (202) have the same structure, and both comprise a U-shaped plate (204), a screw rod (2041) threadedly connected to both ends of the U-shaped plate (204), and a knob (2042) and a clamping plate (2043) arranged at both ends of the screw rod (2041), wherein the clamping plate (2043) is slidably connected to the U-shaped plate (204).

4. A tensile testing machine for automobile parts according to claim 3, characterized in that: The partition assembly comprises a rotating rod (5) arranged at the top of the machine base (1), a flexible metal sheet (501) wound and connected to the rotating rod (5), a rotating shaft (6) rotatably connected to the bottom of the machine base (1), a first reel (601) arranged on the rotating shaft (6), a pull rope (602) wound and connected to the first reel (601) and connected to the end of the flexible metal sheet (501), and a driving motor (603) fixed in the machine base (1) for driving the rotating shaft (6) to rotate, and the inner wall of the test chamber (101) is provided with a first sliding groove (502) for the flexible metal sheet (501) to slide.

5. A tensile testing machine for automobile parts according to claim 4, characterized in that: The partition assembly further comprises a threaded rod (7) rotatably connected to the machine base (1), and an upper bevel gear (701) and a lower bevel gear (702) fixedly arranged at both ends of the threaded rod (7); a driving bevel gear (604) meshing with the lower bevel gear (702) is arranged on the rotating shaft (6); and a driven bevel gear (503) meshing with the upper bevel gear (701) is arranged on the rotating rod (5).

6. A tensile testing machine for automobile parts according to claim 5, characterized in that: The machine base (1) is provided with a second slide groove (8), and the folding cover (3) comprises a first slider (301) fixed in the second slide groove (8), a third slider (303) slidably connected in the second slide groove (8), and a plurality of second sliders (302) slidably connected between the first slider (301) and the third slider (303), and two hinged plate bodies (304) are movably hinged between the first slider (301) and the second slider (302), between two adjacent second sliders (302), and between the second slider (302) and the third slider (303).

7. A tensile testing machine for automobile parts according to claim 6, characterized in that: A double-line drum (9) is provided on the rotating shaft (6), the traction rope (4) is wound around and connected to the double-line drum (9) and is connected to the third slider (303), and the traction rope (4) comprises a first rope body (401) connected to the upper side of the third slider (303) and a second rope body (402) connected to the lower side of the third slider (303).

8. A tensile testing machine for automobile parts according to claim 8, characterized in that: A limiting block (10) is fixedly arranged on the hinged plate body (304), and a limiting groove (1001) for plugging into the flexible metal sheet (501) is provided on the limiting block (10).

9. A tensile testing machine for automobile parts according to claim 8, characterized in that: The auxiliary support assembly comprises a receiving groove (11) provided on the inner wall of the test chamber (101), a plurality of swinging rods (111) rotatably connected to the receiving groove (11) via a first pin shaft, an upper blocking rod (112) rotatably connected to the upper side of the swinging rod (111) via a second pin shaft, and a lower blocking rod (113) rotatably connected to the lower side of the swinging rod (111) via a third pin shaft, the upper blocking rod (112) being provided with a slot (1121) matching with the lower blocking rod (113), the first pin shaft and the second pin shaft being sleeved with a torsion spring, the threaded rod (7) being threadedly provided with a movable pressure plate (12) movably abutting against the end of the swinging rod (111), and the movable pressure plate (12) sliding in the machine base (1).

10. A method for using the tensile testing machine for automobile parts according to claim 9, characterized in that: The following steps are involved: S1: A plurality of automobile parts of the same size to be tested are fixed by means of a tensile testing part (2), and an upper positioning seat (201) cooperates with a lower positioning seat (202) to position the automobile parts; S2: Then, the driving motor (603) is controlled to operate, and the output shaft of the driving motor (603) drives the rotating shaft (6) to rotate, and when the rotating shaft (6) rotates, the first reel (601) and the double-line reel (9) are rotated; When the rotating shaft (6) drives the first reel (601) to rotate, the pull rope (602) is reeled in, the active bevel gear (604) on the rotating shaft (6) meshes with the lower bevel gear (702) on the threaded rod (7) for transmission, and the lower bevel gear (702) drives the upper bevel gear (701) through the threaded rod (7) to mesh with the driven bevel gear (503) on the rotating rod (5) for transmission, so that the rotating rod (5) rotates and cooperates with the pull rope (602) to pull down the flexible metal sheet (501), and the flexible metal sheet (501) moves down along the second slide groove (8) on one side of the test chamber (101), so that the flexible metal sheet (501) separates two adjacent tension test parts (2); The double-wire drum (9) reels the second rope body (402) of the traction rope (4) and releases the first rope body (401), so that the third slider (303) in the second slide groove (8) moves downward, and the third slider (303) drives the second slider (302) to move downward in the second slide groove (8) through the hinged plate body (304), so that the multiple hinged plate bodies (304) are in the same plane and shield the test cavity (101), and when the hinged plate body (304) is placed horizontally, the limit block (10) arranged on the upper side thereof is engaged with the flexible metal sheet (501), so as to limit the end of the flexible metal sheet (501) away from the first slide groove (502); S3: When the threaded rod (7) rotates, the movable pressure plate (12) threadedly connected thereto moves upward, and the movable pressure plate (12) no longer contacts one end of the swing rod (111). The swing rod (111) rotates downward under the action of the torsion spring at the first pin shaft. After the swing rod (111) no longer contacts the inner wall of the receiving groove (11), the upper stopper (112) on the upper side of the swing rod (111) quickly flips and resets under the action of the torsion spring at the second pin shaft, and the swing rod (111) is rotated downward. 1) The lower blocking rod (113) on the lower side automatically droops and flips under the action of its own gravity, and the drooping and flipping lower blocking rod (113) is clamped with the upper blocking rod (112) on the lower swing rod (111), and the flipped and reset upper blocking rod (112) is clamped with the drooping lower blocking rod (113) at the upper swing rod (111), so that the swing rod (111) cooperates with the clamped upper blocking rod (112) and the lower blocking rod (113) to protect the flexible metal sheet (501); S4: Finally, the hydraulic cylinder (203) is controlled to operate, so that the hydraulic cylinder (203) drives the automobile accessory being positioned to be pulled upward through the upper positioning seat (201), and the tension sensor detects the tension received.

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