Sensor lead tensile strength testing device

Abstract

The utility model provides a sensor lead tensile strength testing device, and relates to the field of tensile strength testing, the sensor lead tensile strength testing device comprises a mounting table, the top end of the mounting table is provided with a pulling assembly, the top end of the pulling assembly is provided with a testing assembly, the testing assembly is used for testing the tensile force borne by a lead, one side of the pulling assembly is provided with a bending assembly, and the bending assembly is used for bending the lead. A mounting assembly is arranged at the bottom end of the mounting table, an adjusting assembly is arranged in the mounting assembly, a fastening assembly is arranged on one side of the bending assembly, the fastening assembly is used for clamping one end of the lead, and the pulling assembly is matched with the testing assembly to pull the other end of the lead. According to the invention, the bending assembly and the installation assembly are arranged, so that a user can use the bending assembly according to requirements, abut against the middle part of the sensor and bend the sensor before testing, and then carry out testing, thereby simulating the tensile strength of the lead under the condition of composite stress, and improving the flexibility and practicability of testing.

Description

Technical Field

[0001] This utility model relates to the field of tensile strength testing, and more specifically, to a sensor lead tensile strength testing device. Background Technology

[0002] In the sensor manufacturing process, the sensor lead wire is a key component for signal transmission. Its tensile strength directly affects the reliability and lifespan of the product. The traditional method for testing the tensile strength of the lead wire usually involves clamping both ends of the lead wire with a fixture and applying axial tension until it breaks, thereby measuring the maximum tensile strength.

[0003] However, in actual use, due to limited installation space, the sensor leads may be blocked by other components, and thus bear a combined load of tension and bending. However, traditional unidirectional tensile testing cannot reflect such complex stress conditions, making the test results less comprehensive.

[0004] Therefore, we have made improvements to this and proposed a sensor lead tensile strength testing device. Utility Model Content

[0005] The purpose of this invention is to solve the problem that the tensile strength test of current leads is not comprehensive.

[0006] To achieve the above-mentioned objectives and improve the above-mentioned problems, this utility model provides a sensor lead tensile strength testing device, including a mounting platform. A pulling component is provided at the top of the mounting platform, and a testing component is provided at the top of the pulling component. The testing component is used to measure the tensile force borne by the lead. A bending-resistant component is provided on one side of the pulling component. A mounting component is provided at the bottom of the mounting platform. An adjusting component is provided inside the mounting component. A fastening component is provided on one side of the bending-resistant component. The fastening component is used to clamp one end of the lead. The pulling component cooperates with the testing component to pull the other end of the lead.

[0007] The bending-resistant component includes a support block with openings at both the top and bottom. A first test block is fixedly installed inside the upper opening, and a second test block is fixedly installed inside the lower opening. The first or second test block is switched to contact the lead wire by an installation component, and the height of the bending-resistant component is adjusted by an adjustment component.

[0008] As a preferred technical solution of this application, the mounting assembly includes a fixing seat, the top of which extends through the mounting platform to the bottom of the anti-bending assembly. A connecting groove is provided at the top of the fixing seat, and the support block is rotatably connected to the inside of the connecting groove. Side plates fixed to the bottom of the mounting platform are provided on both sides of the fixing seat. Connecting holes are provided at the top and bottom of the side of the support block. A No. 3 bolt is provided on one side of the upper connecting hole, and the end of the No. 3 bolt extends through the fixing seat and the upper connecting hole to the other side of the connecting hole.

[0009] As a preferred technical solution of this application, the adjustment component includes a locking rod, a plurality of adjustment holes are equally spaced on the fixed base, a locking block is fixedly provided at the top of the adjustment hole, the end of the locking rod passes through the two side plates and the adjustment hole located above, and a locking groove is provided at the top of the locking rod.

[0010] As a preferred technical solution of this application, the pulling assembly includes two connecting seats fixed to the top of the mounting platform, a lead screw is rotatably provided between the two connecting seats, a mounting seat is threaded on the lead screw, and a connecting platform is fixedly provided at the top of the mounting seat.

[0011] As a preferred technical solution of this application, the test assembly includes a connecting plate, which is slidably connected to the top of the connecting platform. Two support plates are fixedly provided on the top of the connecting plate, and two connecting blocks are fixedly provided between the two support plates. A sliding block is slidably provided between the two connecting blocks. A bolt is provided on the side of one of the support plates away from the sliding block. The end of the bolt passes through the support plate and is rotatably connected to the sliding block. A test sensor is fixedly provided on one side of the connecting plate, and a blocking block is fixedly provided on one side of the test sensor. The blocking block is fixedly connected to the connecting platform.

[0012] As a preferred technical solution of this application, the fastening assembly includes a fixed platform, which is fixedly connected to the mounting platform. Two fixed plates are fixedly provided on the top of the fixed platform, and two mounting blocks are fixedly provided between the two fixed plates. A fastening block is slidably provided between the two mounting blocks. A No. 2 bolt is provided on one side of one of the fixed plates, and the end of the No. 2 bolt passes through the fixed plate and is rotatably connected to the fastening block.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] In the scheme of this application:

[0015] By using the bend-resistant and mounting components, users can use the bend-resistant components to bend the middle part of the sensor before testing, thus simulating the tensile strength of the lead wire under combined stress. This improves the flexibility and practicality of the test, enhances the comprehensiveness of the tensile strength test of the sensor lead wire, and solves the problem of the incomplete tensile strength test of the lead wire in the existing technology. Attached Figure Description

[0016] Figure 1 A schematic diagram of the sensor lead tensile strength testing device provided in this application;

[0017] Figure 2 A schematic diagram of the test components in the sensor lead tensile strength testing device provided in this application;

[0018] Figure 3 A schematic diagram showing the disassembled structure of the test components in the sensor lead tensile strength testing device provided in this application;

[0019] Figure 4 A schematic diagram of the mounting components in the sensor lead tensile strength testing device provided in this application;

[0020] Figure 5 A schematic diagram of the bending resistance component in the sensor lead tensile strength testing device provided in this application.

[0021] The image shows:

[0022] 1. Mounting platform; 2. Pulling assembly; 21. Connecting seat; 22. Lead screw; 23. Mounting seat; 24. Connecting platform; 25. Gear motor; 3. Test assembly; 31. Connecting plate; 32. Support plate; 33. Connecting block; 34. Sliding block; 35. Bolt No. 1; 36. Test sensor; 37. Blocking block; 4. Fastening assembly; 41. Fixing platform; 42. Fixing plate; 43. Mounting block; 44. Fastening block; 45. Bolt No. 2; 5. Bending assembly; 51. Support block; 52. Test block No. 1; 53. Test block No. 2; 6. Mounting assembly; 61. Side plate; 62. Fixing seat; 63. Bolt No. 3; 64. Connecting hole; 7. Adjustment assembly; 71. Adjustment hole; 72. Locking block; 73. Locking rod; 74. Locking groove. Detailed Implementation

[0023] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0024] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0025] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0027] Example 1

[0028] Please refer to Figure 1 , Figure 2 , Figure 4 and Figure 5 A sensor lead tensile strength testing device includes a mounting platform 1, a pulling component 2 at the top of the mounting platform 1 for moving a testing component 3, a testing component 3 at the top of the pulling component 2 for clamping one end of the lead and measuring the tensile force borne by the lead, a bending resisting component 5 on one side of the pulling component 2 for resisting the middle part of the sensor lead and bending it, a mounting component 6 at the bottom of the mounting platform 1, an adjusting component 7 inside the mounting component 6, a fastening component 4 on one side of the bending resisting component 5 for clamping one end of the lead, and the pulling component 2 cooperating with the testing component 3 to pull the other end of the lead until the sensor lead breaks, and the maximum tensile force data during the process is saved, thereby measuring the maximum tensile strength;

[0029] The bending-resistant component 5 includes a support block 51, which is located at the top of the mounting platform 1. The support block 51 has openings at both the top and bottom. A first test block 52 is fixedly installed inside the upper opening, and a second test block 53 is fixedly installed inside the lower opening. The first test block 52 and the second test block 53 have different shapes to simulate objects of different shapes that come into contact with the lead wire. The first test block 52 or the second test block 53 can be switched to contact the lead wire by the mounting component 6. The height of the bending-resistant component 5 can be adjusted by the adjustment component 7 to adjust the bending degree of the bending-resistant component 5 in blocking the lead wire. Adjusting the bending-resistant component 5 to the lowest position can prevent the bending-resistant component 5 from contacting the lead wire.

[0030] The top of test block 52 is arc-shaped, while test block 53 is specifically a triangular prism with its diagonal at the bottom. The two different shapes of test block 52 and test block 53 allow users to choose either test block 52 or test block 53 according to their needs.

[0031] Furthermore, such as Figure 1 , Figure 4 and Figure 5 As shown, the mounting assembly 6 includes a fixing base 62. The top of the fixing base 62 extends through the mounting platform 1 to the bottom of the anti-bending assembly 5. A connecting groove is provided at the top of the fixing base 62. The support block 51 is rotatably connected to the inside of the connecting groove. Rotating the support block 51 causes the second test block 53 to face upward or the first test block 52 to face upward, thereby selecting the shape of the object that contacts the sensor lead.

[0032] The fixed base 62 has side plates 61 fixed to the bottom of the mounting platform 1 on both sides. The support block 51 has connecting holes 64 on the upper and lower sides. The connecting holes 64 are connected to the other side of the support block 51. The two connecting holes 64 are located above and below the rotatable connection between the support block 51 and the side plate 61, respectively. A No. 3 bolt 63 is provided on one side of the upper connecting hole 64. The end of the No. 3 bolt 63 passes through the fixed base 62 and the upper connecting hole 64 and extends to the other side of the connecting hole 64. The No. 3 bolt 63 is threadedly connected to the fixed base 62. Rotating the No. 3 bolt 63 will disengage the No. 3 bolt 63 from the fixed base 62 and the connecting hole 64, thereby locking the support block 51.

[0033] Furthermore, such as Figure 1 and Figure 2As shown, the pulling assembly 2 includes two connecting seats 21 fixed to the top of the mounting platform 1. A lead screw 22 is rotatably provided between the two connecting seats 21. A reduction motor 25 is fixedly provided on the side of one of the connecting seats 21 away from the lead screw 22. The reduction motor 25 includes, but is not limited to, a worm gear reduction motor. The output end of the reduction motor 25 passes through the connecting seat 21 and is fixedly connected to the lead screw 22. Starting the reduction motor 25 drives the mounting platform 23 to rotate. The lead screw 22 is threaded with the mounting platform 23. When the mounting platform 23 rotates, it drives the mounting platform 23 and the connecting platform 24 to move through the thread. The top of the mounting platform 23 is fixedly provided with the connecting platform 24. The two sides of the lead screw 22 are provided with slide rails fixedly connected to the mounting platform 1. The connecting platform 24 is slidably connected to the two slide rails at the bottom.

[0034] Furthermore, such as Figure 1 , Figure 2 and Figure 3 As shown, the test assembly 3 includes a connecting plate 31, which is slidably connected to the top of the connecting platform 24. Two support plates 32 are fixedly provided on the top of the connecting plate 31. When it is necessary to fix the sensor lead, the sensor lead is placed between two connecting blocks 33. Two connecting blocks 33 are fixedly provided between the two support plates 32. A sliding block 34 is slidably provided between the two connecting blocks 33. When the sliding block 34 moves, it is restricted by the two connecting blocks 33 to prevent it from rotating, thereby preventing it from causing the lead to rotate together when it comes into contact with the lead. The end of the lead is placed on the side of the sliding block 34 away from the first bolt 35, so that it is located between the sliding block 34 and the support plate 32. The sliding block 34 moves to the side away from the first bolt 35 to clamp and fix the end of the lead.

[0035] One of the support plates 32 is provided with a first bolt 35 on the side away from the sliding block 34. The end of the first bolt 35 passes through the support plate 32 and is rotatably connected to the sliding block 34. The first bolt 35 is threadedly connected to the support plate 32. Rotating the first bolt 35 causes it to drive the sliding block 34 to move.

[0036] A test sensor 36 is fixedly mounted on one side of the connecting plate 31. The test sensor 36 includes, but is not limited to, an S-type tensile and compressive sensor. When the pulling component 2 moves the test component 3 away from the fastening component 4, the lead wire is fixed by the test component 3, causing the connecting plate 31 to be pulled by the lead wire and move towards the test sensor 36. At this time, supported by the test sensor 36, the test sensor 36 is clamped between the connecting plate 31 and the blocking block 37, causing the test sensor 36 to undergo a slight deformation after being subjected to force. The strain gauges attached to the elastic body deform accordingly, resulting in a change in resistance value. The greater the external force, the more significant the change in output voltage. The Wheatstone bridge composed of strain gauges converts the resistance change into a differential voltage signal. After amplification and AD conversion, a standard electrical signal is output, ultimately achieving accurate measurement from force to electrical signal until the sensor lead wire is broken. After the test, the maximum tensile force data is saved, thereby measuring the maximum tensile strength.

[0037] A blocking block 37 is fixedly provided on one side of the test sensor 36, and the blocking block 37 is fixedly connected to the connecting platform 24.

[0038] Furthermore, such as Figure 1 , Figure 2 and Figure 3 As shown, the fastening assembly 4 includes a fixed platform 41, which is fixedly connected to the mounting platform 1. Two fixed plates 42 are fixedly provided on the top of the fixed platform 41, and two mounting blocks 43 are fixedly provided between the two fixed plates 42. When it is necessary to fix the sensor lead, the sensor lead is placed between the two mounting blocks 43 and clamped by the movement of the fastening block 44. The fastening block 44 is slidably provided between the two mounting blocks 43. When the second bolt 45 drives the fastening block 44 to move through the thread, the mounting block 43 prevents it from rotating, so that the fastening block 44 only moves. A second bolt 45 is provided on one side of one of the fixed plates 42. The end of the second bolt 45 passes through the fixed plate 42 and is rotatably connected to the fastening block 44. The second bolt 45 is threadedly connected to the fixed plate 42 through which it passes. The third bolt 63, the first bolt 35 and the second bolt 45 include, but are not limited to, hand-tightening bolts.

[0039] Example 2

[0040] The sensor lead tensile strength testing device provided in Example 1 has been further optimized, specifically, as follows: Figure 1 , Figure 4 and Figure 5As shown, the adjustment assembly 7 includes a locking rod 73. The locking rod 73 is located on one of the side plates 61 away from the fixed seat 62. The fixed seat 62 has several adjustment holes 71 equidistantly provided. The locking rod 73 passes through one of the adjustment holes 71 to lock the fixed seat 62 by cooperating with the fixed seat 62 through the hole on the mounting platform 1. Two locking blocks 72 are fixedly provided at the top of the adjustment hole 71. The end of the locking rod 73 passes through the two side plates 61 and the adjustment hole 71 located above.

[0041] The top of the locking rod 73 has two locking grooves 74, which are located below the two locking blocks 72 in the adjustment hole 71 where the locking rod 73 is located. A handle is fixedly provided on one side of the locking rod 73. When the locking rod 73 is fully inserted into the adjustment hole 71 and blocked by the handle, the fixing seat 62 is released and moves down due to gravity, so that the locking blocks 72 are located inside the locking grooves 74. The adjustment hole 71 and the locking grooves 74 are square.

[0042] The usage process of the sensor lead tensile strength testing device provided by this utility model is as follows:

[0043] When a tensile strength test is required on the sensor lead, place one end of the sensor lead between the two connecting blocks 33, on the side of the sliding block 34 away from the first bolt 35. Then rotate the first bolt 35 so that the sliding block 34, in conjunction with the support plate 32, clamps and fixes the sensor lead. Place the other end of the sensor lead between the two mounting blocks 43, on the side of the fastening block 44 away from the second bolt 45. Then rotate the second bolt 45 so that the fastening block 44, in conjunction with the fixing plate 42, clamps the other end of the sensor lead. Then start the reduction motor 25 to rotate the lead screw 22, which drives the mounting base through the thread. 23. The connecting platform 24 and the test assembly 3 move, causing one end of the sensor lead to move away from the fastening assembly 4. The other end of the sensor lead is fixed by the fastening assembly 4, thereby pulling the test assembly 3 through the sensor lead, so that the test sensor 36 is clamped between the connecting plate 31 and the blocking block 37. The test sensor 36 measures the tension that the sensor lead is subjected to at this time. As the reduction motor 25 continues to start, until the lead is broken, the test sensor 36 records and saves the maximum tension that the sensor lead is subjected to during the test, thereby measuring the maximum tensile strength of the sensor lead.

[0044] When it is necessary to use the bending-resistant component 5 to hold the middle of the lead wire in place and bend it before testing, slide the fixing seat 62 upward so that the bending-resistant component 5 is above the mounting platform 1. Then rotate the support block 51 to select either test block 52 or test block 53 facing upward. After selection, pass the bolt 63 through the connecting hole 64 on the fixing seat 62 and the support block 51. Fix the bending-resistant component 5 by threading and rotating. Then move the fixing seat 62 up and down to select the required height. Pass the locking rod 73 through the two side plates 61 and the corresponding adjustment hole 71. Then loosen the fixing seat 62 so that the locking block 72 slides into the locking groove 74 on the locking rod 73 to fix the height of the fixing seat 62. Then put the middle of the lead wire into the opening at the top of the support block 51 and contact test block 52 or test block 53. Then clamp the two ends of the two leads wires respectively through the test component 3 and the fastening component 4. Then start the reduction motor 25 to perform tensile strength testing.

[0045] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0046] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A sensor lead tensile strength testing device, characterized in that, The device includes a mounting platform (1), a pulling component (2) at the top of the mounting platform (1), a testing component (3) at the top of the pulling component (2), the testing component (3) being used to measure the tensile force borne by the lead wire, a bending-resistant component (5) on one side of the pulling component (2), a mounting component (6) at the bottom of the mounting platform (1), an adjusting component (7) inside the mounting component (6), a fastening component (4) on one side of the bending-resistant component (5), the fastening component (4) being used to clamp one end of the lead wire, and the pulling component (2) cooperating with the testing component (3) to pull the other end of the lead wire; The bending-resistant component (5) includes a support block (51). The top and bottom of the support block (51) are both open. A first test block (52) is fixedly installed inside the upper opening, and a second test block (53) is fixedly installed inside the lower opening. The first test block (52) or the second test block (53) is switched to contact the lead wire by the installation component (6), and the height of the bending-resistant component (5) is adjusted by the adjustment component (7).

2. The sensor lead tensile strength testing device according to claim 1, characterized in that, The mounting assembly (6) includes a fixing seat (62), the top of which extends through the mounting platform (1) to the bottom of the anti-bending assembly (5). A connecting groove is provided at the top of the fixing seat (62), and the support block (51) is rotatably connected to the inside of the connecting groove. Side plates (61) fixed to the bottom of the mounting platform (1) are provided on both sides of the fixing seat (62). Connecting holes (64) are provided on the upper and lower sides of the side of the support block (51). A No. 3 bolt (63) is provided on one side of the upper connecting hole (64). The end of the No. 3 bolt (63) extends through the fixing seat (62) and the upper connecting hole (64) to the other side of the connecting hole (64).

3. The sensor lead tensile strength testing device according to claim 2, characterized in that, The adjustment assembly (7) includes a locking rod (73). Several adjustment holes (71) are equally spaced on the fixed base (62). A locking block (72) is fixedly installed at the top of the adjustment hole (71). The end of the locking rod (73) passes through the two side plates (61) and the adjustment hole (71) located above. A locking groove (74) is opened at the top of the locking rod (73).

4. The sensor lead tensile strength testing device according to claim 1, characterized in that, The pulling assembly (2) includes two connecting seats (21) fixed to the top of the mounting platform (1), and a lead screw (22) is rotatably provided between the two connecting seats (21). A mounting seat (23) is threaded on the lead screw (22), and a connecting platform (24) is fixedly provided at the top of the mounting seat (23).

5. The sensor lead tensile strength testing device according to claim 4, characterized in that, The test assembly (3) includes a connecting plate (31), which is slidably connected to the top of the connecting platform (24). Two support plates (32) are fixedly provided on the top of the connecting plate (31). Two connecting blocks (33) are fixedly provided between the two support plates (32). A sliding block (34) is slidably provided between the two connecting blocks (33). A bolt (35) is provided on the side of one of the support plates (32) away from the sliding block (34). The end of the bolt (35) passes through the support plate (32) and is rotatably connected to the sliding block (34). A test sensor (36) is fixedly provided on one side of the connecting plate (31). A blocking block (37) is fixedly provided on one side of the test sensor (36). The blocking block (37) is fixedly connected to the connecting platform (24).

6. The sensor lead tensile strength testing device according to claim 1, characterized in that, The fastening assembly (4) includes a fixed platform (41), which is fixedly connected to the mounting platform (1). Two fixed plates (42) are fixedly provided at the top of the fixed platform (41), and two mounting blocks (43) are fixedly provided between the two fixed plates (42). A fastening block (44) is slidably provided between the two mounting blocks (43). A No. 2 bolt (45) is provided on one side of one of the fixed plates (42), and the end of the No. 2 bolt (45) passes through the fixed plate (42) and is rotatably connected to the fastening block (44).

7. The sensor lead tensile strength testing device according to claim 1, characterized in that, The top of the first test block (52) is arc-shaped.

8. A sensor lead tensile strength testing device according to claim 1 or 7, characterized in that, The second test block (53) is specifically a triangular prism, with its diagonal located at the bottom.

9. The sensor lead tensile strength testing device according to claim 3, characterized in that, The adjustment hole (71) and locking groove (74) are specifically square.

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