A tensile testing device for automotive fastener wire materials

Abstract

The application provides a kind of automobile fastener wire material tension testing device, it is related to tension testing device field, comprising: indicating component, the indicating component is by conversion mechanism and displacement sensor composition, test component can realize the tension testing of automobile fastener wire material, material is in the tension testing simultaneously, indicating component can real-time monitoring the deformation degree of material, test data is comprehensive and efficient, and indicating component can automatically control the opening and closing of deformation monitoring function according to test state, solve the single test effect of the tension testing device of existing automobile fastener wire material, since automobile fastener wire material has ductility, existing tension testing device can not record monitoring the deformation of material when testing, test data is not comprehensive enough.

Description

TECHNICAL FIELD

[0001] The application relates to a tension testing device for automobile fastener wire material. BACKGROUND

[0002] The automobile fastener wire material is a metal wire material used for manufacturing automobile fastener, which is usually high in strength, good in toughness and corrosion resistance, so as to meet the use requirements of automobiles under various complex working conditions. The automobile fastener wire material needs to be subjected to tension testing during production and research and development, so that a plurality of key parameters during material stretching can be obtained through the tension testing, and the driving safety of the automobile after assembly can be ensured.

[0003] The existing tension testing device for automobile fastener wire material has a single test item. Since the automobile fastener wire material has ductility, obvious elongation deformation occurs when the automobile fastener wire material is subjected to tension. The existing testing device can only perform a basic tension testing task, and lacks the ability of real-time monitoring and recording of the material deformation process, so that the test result is relatively one-sided, the mechanical properties of the material under the stress state cannot be comprehensively reflected, the completeness and accuracy of the test data are affected, and the practicability is not high. SUMMARY

[0004] The application relates to a tension testing device for automobile fastener wire material, which has an indicating assembly. The testing assembly can realize tension testing of the automobile fastener wire material. The indicating assembly can realize real-time monitoring of the deformation degree of the material during the tension testing of the material. The test data is comprehensive and efficient. The indicating assembly can automatically control the opening and closing of the deformation monitoring function according to the test state. That is, when the wire material is not tensioned and straightened, the deformation monitoring function of the indicating assembly is not triggered, so as to avoid unnecessary data from affecting the test result. Only when the wire material is tensioned and straightened, the deformation monitoring function of the indicating assembly is triggered for monitoring use. The indicating assembly is flexible and convenient to use, and has strong flexibility, comprehensiveness and practicability.

[0005] The application provides a tension testing device for automobile fastener wire rod material, and specifically comprises a testing assembly, an indicating assembly and two wire rod fixing blocks; the testing assembly comprises a testing seat, a moving seat, a testing push rod and a linkage seat, the moving seat is inserted into the testing seat, the testing push rod is fixedly installed on the side of the testing seat, the one end of the push rod of the testing push rod is fixedly installed on the side of the moving seat, and the linkage seat is inserted into the moving seat; the indicating assembly is composed of a conversion mechanism and a displacement sensor, the conversion mechanism comprises a switching seat, a conversion rod, a transmission friction wheel, a driving friction wheel and a driving shaft, the switching seat is inserted into the moving seat, the conversion rod is rotationally connected to the inside of the switching seat, the transmission friction wheel is inserted into the bottom of the conversion rod, the driving friction wheel is rotationally connected to the inside of the moving seat, the driving shaft is rotationally connected to the inside of the moving seat, and the displacement sensor is fixedly installed on the top of the moving seat; the bottom of the driving shaft and the driving friction wheel are transmissionally connected through a gear set.

[0006] Further, the side of the linkage seat is provided with a tensioning top spring, and the two ends of the tensioning top spring are respectively abutted against the side of the linkage seat and the inside of the moving seat.

[0007] Further, the side of the switching seat is provided with an inclined switching groove, and the side of the linkage seat is provided with a switching rod which is inserted into the inside of the switching groove.

[0008] Further, the bottom of the conversion rod is provided with a synchronous rod with a cross section of a regular polygon, and the top of the transmission friction wheel is provided with a synchronous groove, and the synchronous rod is inserted into the inside of the synchronous groove.

[0009] Further, the bottom of the conversion rod is provided with a transmission top spring, and the two ends of the transmission top spring are respectively abutted against the inside of the conversion rod and the inside of the transmission friction wheel, and the driving friction wheel and the transmission friction wheel are coaxially arranged.

[0010] Further, the shaft body of the driving shaft is provided with a driving gear, and the inside of the testing seat is provided with a driving rack, and the teeth of the driving rack and the driving gear are in mesh transmission.

[0011] Further, the conversion mechanism further comprises a target seat which is inserted into the inside of the moving seat and the outside of the conversion rod.

[0012] Further, the outside of the conversion rod is provided with a conversion groove, and the inside of the target seat is provided with a conversion protrusion which is inserted into the inside of the conversion groove.

[0013] Further, the conversion groove is composed of an avoiding groove arranged along the axial direction of the conversion rod and an action groove arranged in a spiral manner, and the groove top end of the avoiding groove and the groove bottom end of the action groove are connected.

[0014] The application provides a tension testing device for automobile fastener wire material, which has the following beneficial effects:

[0015] The test assembly can realize tension testing of the automobile fastener wire material, the material is tested in tension at the same time, the indication assembly can monitor the deformation degree of the material in real time, the test data is comprehensive and efficient, and the indication assembly can automatically control the opening and closing of the deformation monitoring function according to the test state, that is, when the wire is not tensioned and straightened, the deformation monitoring function of the indication assembly will not be triggered, unnecessary data is avoided to affect the test result, only when the wire is tensioned and straightened, the deformation monitoring function of the indication assembly will be triggered for monitoring, which is flexible and convenient to use, and the flexibility, comprehensiveness and practicality of the device are improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the application, the drawings of the embodiments will be briefly introduced below.

[0017] The drawings in the following description only relate to some embodiments of the application, and are not limited to the application.

[0018] In the drawings:

[0019] Figure 1 The structure schematic diagram of the application is shown.

[0020] Figure 2 The structure schematic diagram of the internal structure of the application is shown.

[0021] Figure 3 The structure schematic diagram of the internal structure of the application Figure 2 is shown.

[0022] Figure 4 The structure schematic diagram of the internal structure of the application Figure 2 is shown.

[0023] Figure 5 The structure schematic diagram of the test assembly after disassembly of the application is shown.

[0024] Figure 6 The structure schematic diagram of the conversion mechanism after disassembly of the application is shown.

[0025] Figure 7 The structure schematic diagram of the internal structure of the application is shown after the automobile fastener wire material is installed on two wire fixing blocks.

[0026] Figure 8 The structure schematic diagram of the internal structure of the application Figure 7 is shown after the automobile fastener wire material is tensioned and straightened.

[0027] Figure 9 The structure schematic diagram of the applicationFigure 8 The structure diagram of the enlarged part C.

[0028] Figure 10 The application is shown in Figure 8 The structure diagram of the internal structure when the material appears deformation during the tension test.

[0029] Figure 11 The application is shown in Figure 10 The structure diagram of the enlarged part D.

[0030] List of reference signs

[0031] 1, test assembly; 101, test seat; 1011, driving rack; 102, moving seat; 103, test push rod; 104, linkage seat; 1041, tensioning top spring; 1042, switching rod;

[0032] 2, conversion mechanism; 201, switching seat; 2011, switching groove; 202, conversion rod; 2021, synchronization rod; 2022, transmission top spring; 223, conversion groove; 2231, avoiding groove; 2232, action groove; 203, transmission friction wheel; 2031, synchronization groove; 204, driving friction wheel; 205, driving shaft; 2051, driving gear; 206, target seat; 2061, conversion protrusion;

[0033] 3, wire fixing block;

[0034] 4, displacement sensor. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the described embodiments of the present application, all other embodiments obtained by those skilled in the art without any creative effort belong to the scope of protection of the present application.

[0036] Please refer to Figures 1 to 11 : Embodiment one:

[0037] The present application provides a kind of tension test device of automobile fastener wire material, including: test assembly 1, indicating component and two wire fixing blocks 3;Test assembly 1 includes test seat 101, moving seat 102, test push rod 103 and linkage seat 104, moving seat 102 is inserted in the inside of test seat 101, and test push rod 103 is fixedly installed in the side of test seat 101, the push rod one end of test push rod 103 is fixedly installed in the side of moving seat 102, linkage seat 104 is inserted in the inside of moving seat 102;

[0038] The indicating assembly is composed of the conversion mechanism 2 and the displacement sensor 4, and the conversion mechanism 2 comprises a switching seat 201, a conversion rod 202, a transmission friction wheel 203, a driving friction wheel 204 and a driving shaft 205, the switching seat 201 is inserted in the inside of the moving seat 102, the conversion rod 202 is rotatably connected in the inside of the switching seat 201, the transmission friction wheel 203 is inserted in the bottom of the conversion rod 202, the driving friction wheel 204 is rotatably connected in the inside of the moving seat 102, the driving shaft 205 is rotatably connected in the inside of the moving seat 102, and the displacement sensor 4 is fixedly installed on the top of the moving seat 102, the bottom of the driving friction wheel 204 and the driving shaft 205 are drivingly connected through a gear set; the two wire fixing blocks 3 are fixedly connected on the side surface of the test seat 101 and the side surface of the linkage seat 104 respectively;

[0039] The conversion mechanism 2 further comprises a target seat 206, the target seat 206 is inserted in the inside of the moving seat 102, and the target seat 206 is inserted in the outside of the conversion rod 202, the test assembly 1 can realize the tensile test function of the automobile fastener wire material, the moving seat 102 can be moved in the inside of the test seat 101 through the test push rod 103, so as to change the use interval of the two wire fixing blocks 3, after the two ends of the automobile fastener wire material are fixed in the inside of the wire fixing block 3 respectively, the tensile test of the automobile fastener wire material can be realized by controlling the two wire fixing blocks 3 to move away from each other, the test push rod 103 can monitor the force change during the test, so as to realize the tensile test function, which is flexible and convenient to use, the indicating assembly can monitor the deformation (length) change of the automobile fastener wire material when the test assembly 1 performs the tensile test on the automobile fastener wire material, and the deformation monitoring function of the indicating assembly is triggered only after the automobile fastener wire material is pulled to tension, so as to ensure the accuracy and stability of the measurement data.

[0040] The side of the linkage seat 104 is provided with a tensioning top spring 1041, and the two ends of the tensioning top spring 1041 abut against the side of the linkage seat 104 and the inside of the moving seat 102 respectively. In use, when the automobile fastener wire material is not tensioned and straightened, at this time, under the action of the tensioning top spring 1041, the linkage seat 104 is in a state of being hidden in the inside of the moving seat 102. Synchronously, the switching seat 201 can position the use position of the conversion rod 202 and the transmission friction wheel 203, so that the transmission friction wheel 203 and the driving friction wheel 204 are in a state of being separated from each other. The shaft body of the driving shaft 205 is provided with a driving gear 2051, and the inside of the test seat 101 is provided with a driving rack 1011. The driving rack 1011 and the gear teeth of the driving gear 2051 are in meshing transmission. At this time, when the moving seat 102 moves to change the use position, although the driving rack 1011 can drive the driving shaft 205 and the driving friction wheel 204 to rotate through the driving gear 2051, since the transmission friction wheel 203 and the driving friction wheel 204 are in a state of being separated from each other, at this time, even if the moving seat 102 is in a moving preparation state, the use displacement of the target seat 206 will not change, so that the displacement sensor 4 will not monitor the displacement data change, and the deformation monitoring function of the indicating assembly will not be triggered, so that the use is flexible and convenient.

[0041] The side of the switching seat 201 is provided with an inclined switching groove 2011, and the side of the linkage seat 104 is provided with a switching rod 1042 which is inserted into the inside of the switching groove 2011. The bottom of the conversion rod 202 is provided with a transmission top spring 2022, and the two ends of the transmission top spring 2022 abut against the inside of the conversion rod 202 and the inside of the transmission friction wheel 203 respectively. The driving friction wheel 204 and the transmission friction wheel 203 are coaxially arranged. In use, when the automobile fastener wire material is tensioned and straightened for tension test, the indicating assembly can automatically trigger the deformation monitoring function, so as to monitor and record the deformation data of the automobile fastener wire material generated during the tension test. After the automobile fastener wire material is tensioned and straightened, at this time, the tensioning top spring 1041 is compressed to provide a tension degree for the material, and the linkage seat 104 will protrude outward. When the linkage seat 104 protrudes, the switching rod 1042 can drive the switching seat 201 to move downward through the switching groove 2011, so as to abut the transmission friction wheel 203 against the driving friction wheel 204. During the process, the transmission top spring 2022 is compressed to provide a friction transmission pressure between the transmission friction wheel 203 and the driving friction wheel 204, so as to ensure that the transmission friction wheel 203 and the driving friction wheel 204 can stably transmit. At the same time, the conversion protrusion 2061 also moves from the bottom end of the avoiding groove 2231 to the groove body connection position of the avoiding groove 2231 and the action groove 2232,

[0042] The transformation rod 202 is externally provided with a transformation groove 223, and the target seat 206 is internally provided with a transformation protrusion 2061 which is inserted into the inside of the transformation groove 223, the transformation groove 223 is composed of an avoiding groove 2231 which is arranged axially along the transformation rod 202 and a movement groove 2232 which is arranged spirally, the groove top end of the avoiding groove 2231 is connected with the groove bottom end of the movement groove 2232, in use, after the material is subjected to the tensile test, if the material does not deform, the position of the moving seat 102 in the inside of the test seat 101 will not change, when the material deforms, the moving seat 102 will move in the inside of the test seat 101, when the moving seat 102 moves, the drive rack 1011 can drive the driving shaft 205 to rotate through the drive gear 2051, when the driving shaft 205 rotates, the driving friction wheel 204 can be driven to rotate through the gear set, when the driving friction wheel 204 rotates, the transmission friction wheel 203 can be driven to rotate through the friction transmission, the bottom of the transformation rod 202 is provided with a synchronous rod 2021 which is a regular polygon in cross section, and the top of the transmission friction wheel 203 is provided with a synchronous groove 2031, the synchronous rod 2021 is inserted into the inside of the synchronous groove 2031, when the transmission friction wheel 203 rotates, the synchronous groove 2031 can drive the transformation rod 202 to rotate through the synchronous rod 2021, when the transformation rod 202 rotates, the movement groove 2232 can drive the target seat 206 to move upward through the transformation protrusion 2061, after the displacement sensor 4 monitors that the target seat 206 has displacement change, it can automatically record data, so that the deformation data of the material can be monitored and recorded in real time, the measurement result is comprehensive, after a single test is completed, the moving seat 102 is driven to move by the test push rod 103 to remove the test force on the material, after the material is removed, under the action of the tensioned top spring 1041, the indicating assembly can automatically restore the state that the transmission friction wheel 203 and the driving friction wheel 204 are separated from each other, and the target seat 206 will also reset under the action of the weight, so that the transformation protrusion 2061 can re-enter the bottom end of the avoiding groove 2231, for the next test.

[0043] The specific usage and function of this embodiment: In this invention, the testing component 1 can realize the tensile testing function of automotive fastener wire material. The testing push rod 103 can drive the moving seat 102 to move inside the testing seat 101, thereby changing the spacing between the two wire fixing blocks 3. After fixing both ends of the automotive fastener wire material inside the wire fixing blocks 3 respectively, the tensile testing of the automotive fastener wire material can be realized by controlling the two wire fixing blocks 3 to move away from each other. During the test, the testing push rod 103 can monitor the force change, thereby realizing the tensile testing function. It is flexible and convenient to use. The indicator component can monitor the deformation of the automotive fastener wire material when the testing component 1 performs tensile testing on the automotive fastener wire material. The deformation monitoring function of the indicator component is triggered only after the automotive fastener wire material is stretched to tension. When the automotive fastener wire material is not stretched, the linkage seat 104 is hidden inside the moving seat 102 under the action of the tensioning top spring 1041. At the same time, the switching seat 201 can position the use position of the conversion rod 202 and the transmission friction wheel 203, so that the transmission friction wheel 203 and the active friction wheel 204 are separated. Therefore, when the moving seat 102 moves to change the use position, although the drive rack 1011 can drive the drive shaft 205 and the active friction wheel 204 to rotate through the drive gear 2051, the transmission friction wheel 203 and the active friction wheel 204 are still separated. The moving friction wheels 204 are in a separated state, so even if the moving seat 102 is in the ready-to-move state, the displacement of the target seat 206 will not change, and the displacement sensor 4 will not detect any change in displacement data, thus not triggering the deformation monitoring function of the indicator component. When the automotive fastener wire material is tensioned and straightened for a tensile test, the indicator component can automatically trigger the deformation monitoring function to monitor and record the deformation data generated by the automotive fastener wire material during the tensile test. After the automotive fastener wire material is tensioned and straightened, the tensioning top spring 1041 is compressed to provide tension to the material, and the linkage seat 104 will extend outward. When the linkage seat 104 extends, the switching lever 1042 can pass through The switching groove 2011 drives the switching seat 201 to move downwards, thereby bringing the transmission friction wheel 203 against the active friction wheel 204. During this process, the transmission top spring 2022 is compressed to provide frictional transmission pressure between the transmission friction wheel 203 and the active friction wheel 204, ensuring stable transmission between them. Simultaneously, the conversion protrusion 2061 moves from the bottom of the clearance groove 2231 to the connection position between the clearance groove 2231 and the action groove 2232. Afterwards, during tensile testing, if the material does not deform, the position of the moving seat 102 inside the test seat 101 will not change. When the material deforms, the moving seat 102 will move inside the test seat 101.When the mobile base 102 moves, the rack 1011 can drive the pinion 2051 to rotate the drive shaft 205, the drive shaft 205 can drive the driving friction wheel 204 to rotate through the gear set when rotating, the driving friction wheel 204 can drive the transmission friction wheel 203 to rotate through the friction transmission, the transmission friction wheel 203 can drive the conversion rod 202 to rotate through the synchronous slot 2031 and the synchronous rod 2021, the conversion rod 202 can drive the target base 206 to move upward through the action slot 2232 and the conversion protrusion 2061, the displacement sensor 4 can automatically record data after monitoring the displacement change of the target base 206, so that the deformation data of the material can be monitored and recorded in real time, after a single test is completed, the mobile base 102 is moved by the test push rod 103 to remove the test force on the material, the material is removed, and under the action of the tensioned top spring 1041, the indicating assembly can automatically restore the mutual separation state between the transmission friction wheel 203 and the driving friction wheel 204, and the target base 206 is also reset under the action of the weight, so that the conversion protrusion 2061 can re-enter the bottom end of the avoidance slot 2231, for next test use.

[0044] In another embodiment, the top of the target base 206 is provided with a reset top spring, and the two ends of the reset top spring are respectively abutted against the top of the target base 206 and the inside of the mobile base 102, and the elastic force of the reset top spring is smaller than that of the transmission top spring 2022, which makes the target base 206 smoothly reset downward under the combined action of the reset top spring and the weight of the target base 206 after a single test is completed and the automobile fastener wire material is removed, so as to be used for next test, further improving the flexibility and stability of the device.

Claims

1. A tensile testing device for automotive fastener wire materials, characterized in that, include: The test assembly (1), the indicator assembly, and two wire fixing blocks (3) are provided. The test assembly (1) includes a test base (101), a movable base (102), a test push rod (103), and a linkage base (104). The movable base (102) is inserted into the interior of the test base (101), and the test push rod (103) is fixedly installed on the side of the test base (101). One end of the push rod of the test push rod (103) is fixedly installed on the side of the movable base (102). The linkage base (104) is inserted into the interior of the movable base (102). The indicator assembly consists of a conversion mechanism (2) and a displacement sensor (4). The conversion mechanism (2) includes a switching base (201), a conversion rod (202), a transmission friction wheel (203), and an active friction wheel. The wheel (204) and drive shaft (205) are connected together. The switching seat (201) is inserted into the inside of the moving seat (102), and the conversion rod (202) is rotatably connected to the inside of the switching seat (201). The transmission friction wheel (203) is inserted into the bottom of the conversion rod (202), and the active friction wheel (204) is rotatably connected to the inside of the moving seat (102). The drive shaft (205) is rotatably connected to the inside of the moving seat (102), and the displacement sensor (4) is fixedly installed on the top of the moving seat (102). The bottom of the drive shaft (205) and the active friction wheel (204) are connected by a gear set. The two wire fixing blocks (3) are respectively fixedly connected to the side of the test seat (101) and the side of the linkage seat (104). The side of the linkage seat (104) is provided with a tension top spring (1041), and the two ends of the tension top spring (1041) abut against the side of the linkage seat (104) and the interior of the movable seat (102), respectively. The side of the switching seat (201) is provided with an inclined switching groove (2011), and the side of the linkage seat (104) is provided with a switching rod (1042), which is inserted into the inside of the switching groove (2011). The bottom of the conversion rod (202) is provided with a synchronization rod (2021) with a regular polygonal cross section, and the top of the transmission friction wheel (203) is provided with a synchronization groove (2031), and the synchronization rod (2021) is inserted into the inside of the synchronization groove (2031); The bottom of the conversion rod (202) is provided with a transmission top spring (2022), and the two ends of the transmission top spring (2022) abut against the inside of the conversion rod (202) and the inside of the transmission friction wheel (203) respectively. The active friction wheel (204) and the transmission friction wheel (203) are arranged on the same axis. The conversion mechanism (2) also includes a target seat (206), which is inserted into the interior of the movable seat (102) and into the exterior of the conversion rod (202); The conversion rod (202) has a conversion groove (223) on its outside, and the target seat (206) has a conversion protrusion (2061) inside, which is inserted into the conversion groove (223); The conversion groove (223) consists of a clearance groove (2231) arranged along the axial direction of the conversion rod (202) and a spirally arranged action groove (2232). The top of the clearance groove (2231) is connected to the bottom of the action groove (2232).

2. The tensile testing device for automotive fastener wire materials according to claim 1, characterized in that, The drive shaft (205) has a drive gear (2051) on its shaft body, and the test seat (101) has a drive rack (1011) inside, and the drive rack (1011) and the drive gear (2051) mesh and transmit power.

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