A tensile testing apparatus

CN224861413UActive Publication Date: 2026-10-16SUZHOU NICEDE AUTOMATION EQUIP CO LTD
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Patent Information

Application Number
CN202522402319.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-12
Publication Date
2026-10-16
Estimated Expiration
2035-11-12

AI Technical Summary

Technical Problem

这种方式的核心问题在于“人为主导的不确定性”——不同操作人员的螺丝拧入力度、拉力施加速度存在差异,即使同一产品也可能因操作手法不同得出不同测试结果,导致产品质量判定标准不统一,批量生产时易出现合格产品误判、不合格产品漏检的情况

Benefits of technology

本实用新型,通过自动化机构与智能控制系统的协同,有效解决传统人工测试的痛点:上料、送料、测试、下料全流程无需人工干预,伺服电机与气缸驱动保障各环节动作精准,避免人为操作差异导致的测试误差,大幅提升产品质量一致性;扫码组件与控制程序实现产品标识与拉拔力数据的关联存储及追溯,便于质量问题精准定位;同时,自动化流程显著缩短单产品测试耗时,适配批量生产需求,降低人工成本与劳动强度,为消费电子产品铜螺母质检提供高效、稳定的解决方案。

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Abstract

The utility model belongs to test equipment technical field especially is a kind of tension testing equipment, including feeding assembly line, feeding mechanism, feeding mechanism, measuring mechanism, discharging mechanism and rack.The utility model, through the cooperation of automation mechanism and intelligent control system, effectively solve the pain point of traditional manual test: feeding, feeding, testing, discharging whole process need not manual intervention, servo motor and cylinder drive guarantee each link action precision, avoid the test error caused by artificial operation difference, substantially improve product quality consistency;Code scanning component and control program realize the associated storage and traceability of product identification and pulling force data, facilitate accurate positioning of quality problems;At the same time, automated process significantly shortens the time consumption of single product test, adapts batch production demand, reduces labor cost and labor intensity, provides efficient, stable solution for consumer electronic product copper nut quality inspection.
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Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, specifically a tensile testing device. Background Technology

[0002] In the manufacturing process of consumer electronics products such as laptops and mobile phones, copper nuts need to be fixed to the equipment casing through a hot-melt and hot-pressing process. Their fixing strength directly determines the product's assembly stability and lifespan. If the copper nuts are loose, problems such as stripping and falling off during subsequent screw fastening are likely to occur, seriously affecting product functionality and user experience. Therefore, the pull-out force test after hot pressing of the copper nuts has become a critical quality inspection step before the product leaves the factory. It is necessary to accurately test the tightness of the nut fixing to ensure that each product meets quality standards.

[0003] Currently, the industry relies heavily on manual operation for testing the pull-out force of copper nuts: operators manually screw the screw into the copper nut on the product's casing, then use a pull-out tester to hook the screw and apply force, judging the heat-pressing effect by reading the tester's value. The core problem with this method lies in the "uncertainty of human intervention"—different operators have different screw-in force and speed of force application. Even for the same product, different operating methods may yield different test results, leading to inconsistent product quality judgment standards. In mass production, this can easily result in misjudging qualified products and missing unqualified products.

[0004] Meanwhile, manual testing is extremely inefficient. A single test requires multiple steps: "removing the part, tightening the screw, measuring the tensile force, recording the data, and removing the screw." Testing a single product can take 1-2 minutes, making it unsuitable for the daily mass production needs of thousands of consumer electronics products. Furthermore, manual data recording is prone to omissions and errors. If quality issues are subsequently discovered, it's impossible to quickly trace the corresponding product's test records, necessitating a comprehensive re-inspection of the entire batch. This increases production costs and delays delivery. Therefore, an automated, high-precision, and traceable tensile force testing solution is urgently needed to address these pain points. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a tensile testing device that solves the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution: A tensile testing device includes a loading line, a loading mechanism, a feeding mechanism, a measuring mechanism, a unloading mechanism, and a frame. The frame serves as the overall support foundation for the equipment. Along the length of the frame, the feeding assembly line, the feeding mechanism, and the unloading mechanism are arranged sequentially, and all three are horizontally fixed to the top platform of the frame. The measuring mechanism is vertically mounted directly above the feeding mechanism, and the feeding mechanism is horizontally spanned between the feeding assembly line and the feeding mechanism. All four are fixedly connected to the frame. In the measuring mechanism, the gantry is gantry-shaped and its bottom two ends are vertically fixed to the top of the frame. The sliding plate is vertically embedded in the groove of the inner crossbeam of the gantry. The electric screw is horizontally inserted between the inner crossbeam of the gantry and the sliding plate, and the two ends of the electric screw are threaded to the crossbeam of the gantry and the sliding plate respectively. The lifting module is vertically fixed to the bottom end face of the sliding plate. The top of the tension sensor is bolted to the output end of the lifting module. The top of the rotary motor is connected to the bottom flange of the tension sensor. The top of the measuring head is detachably mounted on the output shaft of the rotary motor. In the feeding mechanism, the feeding module is laid horizontally on the top of the frame and located directly below the measuring mechanism. Vertical frames are provided on both sides of the top of the feeding module. The pressing cylinder is fixed vertically downward in the middle of the top frame of the feeding module, and the limiting cylinder is fixed horizontally on the side of the top frame of the feeding module close to the feeding line, with the output end of the limiting cylinder facing the product placement area of ​​the feeding module. In the feeding assembly line, the assembly line is horizontally fixed at the top of the frame near the feeding mechanism, and the conveying direction of the assembly line is towards the feeding mechanism; the limiting sheet metal is an L-shaped plate, and two limiting sheet metals are vertically fixed on both sides of the top of the assembly line to form a product guide channel; a limiting cylinder is horizontally fixed on the end side of the assembly line near the feeding mechanism, and the output end of the limiting cylinder can extend into the channel formed by the limiting sheet metal; In the feeding mechanism, CCM module 1 is horizontally mounted above the feeding assembly line and the feeding mechanism. Both ends of CCM module 1 are fixedly connected to the vertical support at the top of the frame. Servo motor 1 is fixed on the sliding slider of CCM module 1. Lifting cylinder 1 is vertically fixed to the bottom of servo motor 1. Suction cup 1 is fixed to the bottom of the output end of lifting cylinder 1 through a connecting seat. Suction cup 1 is located directly above the feeding assembly line and the feeding mechanism. In the feeding mechanism, CCM module two is horizontally mounted above the feeding mechanism and the external feeding area of ​​the equipment. Both ends of CCM module two are fixedly connected to the vertical support at the top of the frame. Servo motor two is fixed on the sliding slider of CCM module two. Lifting cylinder two is vertically fixed to the bottom of servo motor two. Suction cup two is fixed to the bottom of the output end of lifting cylinder two through a connecting seat. Suction cup two is located directly above the feeding mechanism and the external feeding area.

[0007] Furthermore, the measuring mechanism drives the sliding plate to move laterally along the slide groove of the gantry beam via an electric screw, and in conjunction with the lifting module, drives the tension sensor, rotary motor, and measuring head to move up and down, thereby achieving precise positioning of the measuring head in the horizontal and vertical directions. The rotary motor can drive the measuring head to rotate forward to screw in the product nut and rotate backward to screw out the product nut. The tension sensor collects the tension data during the screwing process in real time and displays it synchronously through the matching digital display.

[0008] Furthermore, the feeding module of the feeding mechanism can drive the product to move horizontally to the test station directly below the measuring mechanism. At this time, the output end of the pressing cylinder extends downward to press the top of the product, and the output end of the limiting cylinder extends laterally to abut the side of the product, forming a dual positioning of "pressing + side limiting" to ensure the coaxial alignment accuracy of the measuring head and the product nut.

[0009] Furthermore, the feed line drives the product to move along the limiting sheet metal guide channel toward the feeding mechanism. When the product moves to the end of the feed line, the output end of the limiting cylinder extends to block the product, so that the product stops at the preset initial positioning position, which facilitates the suction cup of the feeding mechanism to accurately align and pick up the product.

[0010] Furthermore, the servo motor of the feeding mechanism drives the sliding slider of the CCM module to move, which in turn moves the lifting cylinder and the suction cup to the product initially positioned on the feeding line. The lifting cylinder drives the suction cup to move down and clamp the product before resetting. Then, the CCM module transfers the product to the feeding module of the feeding mechanism to complete the feeding action.

[0011] Furthermore, the servo motor 2 of the unloading mechanism drives the sliding slider of the CCM module 2 to move, thereby moving the lifting cylinder 2 and the suction cup 2 to above the inspected product of the feeding mechanism. The lifting cylinder 2 drives the suction cup 2 to move down and clamp the product. If the product passes the inspection, the CCM module 2 moves the product to the qualified unloading area on one side of the frame. If the product fails the inspection, it is moved to the unqualified unloading area on the other side of the frame, thus achieving classified unloading.

[0012] Furthermore, the equipment also includes a barcode scanning component and a control program. The barcode scanning component is fixed on the top frame of the feeding mechanism near the loading mechanism, with the scanning end of the barcode scanning component facing the product placement area of ​​the feeding module. The control program is electrically connected to the barcode scanning component, the tension sensor, servo motor one, servo motor two, the pressing cylinder, the limit cylinder one, and the limit cylinder two, respectively. It can associate and store the unique product identification information obtained by the barcode scanning component with the pull-out force value detected by the tension sensor, and upload it to the customer-designated server to achieve product quality traceability.

[0013] Compared with the prior art, the present invention provides a tensile testing device with the following advantages: This invention effectively addresses the pain points of traditional manual testing through the synergy of automated mechanisms and intelligent control systems: the entire process of loading, feeding, testing, and unloading requires no manual intervention; servo motors and cylinder drives ensure precise actions at each stage, avoiding testing errors caused by human error and significantly improving product quality consistency; the barcode scanning component and control program enable the association, storage, and traceability of product identification and pull-out force data, facilitating accurate location of quality issues; simultaneously, the automated process significantly shortens the testing time for a single product, adapts to batch production needs, reduces labor costs and intensity, and provides an efficient and stable solution for the quality inspection of copper nuts in consumer electronics products. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall installation structure of this utility model; Figure 2 This is a schematic diagram of the measuring mechanism structure of this utility model; Figure 3 This is a schematic diagram of the feeding mechanism of this utility model; Figure 4 This is a schematic diagram of the feeding assembly line structure of this utility model; Figure 5 This is a schematic diagram of the installation structure of the feeding mechanism of this utility model; Figure 6 This is a schematic diagram of the installation structure of the feeding mechanism of this utility model.

[0015] In the diagram: 1. Loading assembly line; 11. Assembly line; 12. Limit cylinder one; 13. Limit sheet metal; 2. Loading mechanism; 21. CCM module one; 22. Servo motor one; 23. Lifting cylinder one; 24. Suction cup one; 3. Feeding mechanism; 31. Feeding module; 32. Pressing cylinder; 33. Limit cylinder two; 4. Measuring mechanism; 41. Gantry frame; 42. Sliding plate; 43. Electric screw; 44. Lifting module; 45. Tension sensor; 46. Rotary motor; 47. Measuring head; 5. Unloading mechanism; 51. CCM module two; 52. Servo motor two; 53. Lifting cylinder two; 54. Suction cup two; 6. Frame. Detailed Implementation

[0016] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0017] like Figure 1-6As shown in the figure, a tensile testing device according to one embodiment of the present invention includes a feeding line 1, a feeding mechanism 2, a feeding mechanism 3, a measuring mechanism 4, a discharging mechanism 5, and a frame 6. The frame 6 serves as the overall support foundation for the equipment. Along the length of the frame 6, the feeding assembly line 1, the feeding mechanism 3, and the unloading mechanism 5 are arranged in sequence, and all three are horizontally fixed to the top platform of the frame 6. The measuring mechanism 4 is vertically mounted directly above the feeding mechanism 3, and the feeding mechanism 2 is horizontally spanned between the feeding assembly line 1 and the feeding mechanism 3. All four are fixedly connected to the frame 6. In the measuring mechanism 4, the gantry 41 is gantry-shaped and its bottom two ends are vertically fixed to the top of the frame 6. The sliding plate 42 is vertically embedded in the sliding groove of the inner crossbeam of the gantry 41. The electric screw 43 is horizontally inserted between the inner crossbeam of the gantry 41 and the sliding plate 42, and the two ends of the electric screw 43 are threaded to the crossbeam of the gantry 41 and the sliding plate 42 respectively. The lifting module 44 is vertically fixed downward on the bottom end face of the sliding plate 42. The top of the tension sensor 45 is bolted to the output end of the lifting module 44. The top of the rotary motor 46 is connected to the bottom flange of the tension sensor 45. The top of the measuring head 47 is detachably mounted on the output shaft of the rotary motor 46. In the feeding mechanism 3, the feeding module 31 is horizontally laid on the top of the frame 6 and located directly below the measuring mechanism 4. Vertical frames are provided on both sides of the top of the feeding module 31. The pressing cylinder 32 is vertically fixed downward in the middle of the top frame of the feeding module 31. The limiting cylinder 33 is horizontally fixed on the side of the top frame of the feeding module 31 near the feeding line 1, and the output end of the limiting cylinder 33 faces the product placement area of ​​the feeding module 31. In the feeding assembly line 1, the assembly line 11 is horizontally fixed at the top of the frame 6 near the feeding mechanism 2, and the conveying direction of the assembly line 11 is towards the feeding mechanism 3; the limiting sheet metal 13 is an L-shaped plate, and two limiting sheet metals 13 are vertically fixed on both sides of the top of the assembly line 11 to form a product guide channel; the limiting cylinder 12 is horizontally fixed on the end side of the assembly line 11 near the feeding mechanism 3, and the output end of the limiting cylinder 12 can extend into the channel formed by the limiting sheet metal 13; In the feeding mechanism 2, the CCM module 21 is horizontally mounted above the feeding line 1 and the feeding mechanism 3. Both ends of the CCM module 21 are fixedly connected to the vertical support at the top of the frame 6. The servo motor 22 is fixed on the sliding block of the CCM module 21. The lifting cylinder 23 is vertically fixed to the bottom of the servo motor 22. The suction cup 24 is fixed to the bottom of the output end of the lifting cylinder 23 through the connecting seat, and the suction cup 24 is located directly above the feeding line 1 and the feeding mechanism 3. In the unloading mechanism 5, the second CCM module 51 is horizontally mounted above the feeding mechanism 3 and the external unloading area of ​​the equipment. Both ends of the second CCM module 51 are fixedly connected to the vertical support at the top of the frame 6. The second servo motor 52 is fixed on the sliding slider of the second CCM module 51. The second lifting cylinder 53 is vertically fixed to the bottom of the second servo motor 52. The second suction cup 54 is fixed to the bottom of the output end of the second lifting cylinder 53 through the connecting seat, and the second suction cup 54 is located directly above the feeding mechanism 3 and the external unloading area.

[0018] like Figure 2 As shown, in some embodiments, the measuring mechanism 4 drives the sliding plate 42 to move laterally along the crossbeam groove of the gantry frame 41 via the electric screw 43, and cooperates with the lifting module 44 to drive the tension sensor 45, the rotary motor 46 and the measuring head 47 to move up and down, so as to achieve precise positioning of the measuring head 47 in the horizontal and vertical directions; the rotary motor 46 can drive the measuring head 47 to rotate forward to screw in the product nut and rotate backward to screw out the product nut, and the tension sensor 45 collects the tension data in real time during the screwing process and displays it synchronously through the matching digital display.

[0019] The working principle of this tensile testing equipment is as follows: The product to be tested is manually placed on the assembly line 11 of the feeding assembly line 1. The product is conveyed along the guide channel formed by the limiting sheet metal 13. When it reaches the end, the limiting cylinder 12 extends to achieve initial positioning. The servo motor 22 of the feeding mechanism 2 drives the CCM module 21 to move the sliding slider, causing the lifting cylinder 23 and suction cup 24 to move above the initially positioned product. The lifting cylinder 23 drives the suction cup 24 to move down and clamp the product. Then, the CCM module 21 transfers the product to the feeding module 31 of the feeding mechanism 3. The feeding module 31 moves the product to the testing station directly below the measuring mechanism 4. The pressing cylinder 32 extends downward to press the top of the product, and the limiting cylinder 33 extends laterally to abut the side of the product to complete dual positioning. At the same time, the barcode scanning component scans and identifies the product. The electric motor of the measuring mechanism 4... The screw 43 drives the sliding plate 42 to move laterally along the crossbeam groove of the gantry frame 41. In conjunction with the lifting module 44, it drives the tension sensor 45, rotary motor 46, and measuring head 47 to accurately position the product nut. The rotary motor 46 drives the measuring head 47 to rotate clockwise to screw in the nut and then counterclockwise to screw it out. The tension sensor 45 collects the pull-out force data in real time and transmits it to the control program. The control program associates the product's unique identifier obtained by scanning the code with the tension data to determine whether the product is qualified or not. The feeding module 31 moves the product to the unloading position. The servo motor 52 of the unloading mechanism 5 drives the CCM module 51 to drive the lifting cylinder 53 and the suction cup 54 to clamp the product. According to the test results, qualified products are transferred to the qualified unloading area on one side of the frame 6, and unqualified products are transferred to the unqualified unloading area on the other side, completing the entire test process. All data is uploaded to the customer's designated server for traceability.

[0020] like Figure 3 As shown, in some embodiments, the feeding module 31 of the feeding mechanism 3 can drive the product to move horizontally to the test station directly below the measuring mechanism 4. At this time, the output end of the pressing cylinder 32 extends downward to press the top of the product, and the output end of the limiting cylinder 33 extends laterally to abut the side of the product, forming a dual positioning of "top clamping + side limiting" to ensure the coaxial alignment accuracy of the measuring head 47 and the product nut. Through the dual positioning design of "top clamping + side limiting", it can not only avoid the product from moving upward due to the lack of top constraint during the test, but also prevent lateral deviation. It ensures that the product nut is always directly below the measuring head 47 from two dimensions, directly solving the problem of "inaccurate test data caused by the misalignment of the measuring head and the nut", and providing a premise for the tensile sensor 45 to collect real and reliable pull-out force data.

[0021] like Figure 4 As shown, in some embodiments, the conveyor line 11 of the feeding line 1 drives the product to move along the guide channel of the limiting sheet metal 13 towards the feeding mechanism 3. When the product moves to the end of the conveyor line 11, the output end of the limiting cylinder 12 extends to block the product, so that the product stops at the preset initial positioning position, which facilitates the precise positioning and picking up of the suction cup 24 of the feeding mechanism 2. First, it clarifies the "conveying function" of the conveyor line 11, that is, to drive the product to move towards the feeding mechanism 3, so as to realize the initial flow of the product in the equipment. Second, it explains the "guiding function" of the limiting sheet metal 13, which constrains the movement trajectory of the product through the channel formed by the L-shaped plates on both sides to avoid the product deviation. Third, it describes the "limiting function" of the limiting cylinder 12, which extends to block the product when it reaches the end of the conveyor line 11, fixes the product at the preset initial positioning position, and finally connects with the picking up action of the suction cup 24 of the feeding mechanism 2 to form a complete pre-feeding process of "conveying-guiding-positioning-connecting picking up".

[0022] like Figure 5 As shown, in some embodiments, the servo motor 22 of the feeding mechanism 2 drives the sliding slider of the CCM module 21 to move, thereby moving the lifting cylinder 23 and the suction cup 24 to the position above the initially positioned product on the feeding assembly line 1. The lifting cylinder 23 drives the suction cup 24 to move down, clamp the product, and then reset. The product is then transferred to the feeding module 31 of the feeding mechanism 3 through the CCM module 21, completing the feeding action. One aspect is to explain "displacement drive", that is, the CCM module 21 is driven by the servo motor 22. The sliding slider drives the lifting cylinder 23 and the suction cup 24 to complete the horizontal position adjustment, accurately aligning with the initial positioning product of the feeding assembly line 1; secondly, the "picking action" is explained, through the extension and retraction of the lifting cylinder 23, the suction cup 24 is moved up and down to pick up and lift the product; thirdly, the "transfer connection" is described, through the displacement control of the CCM module 21, the picked-up product is transferred to the feeding module 31 of the feeding mechanism 3, finally completing the feeding closed loop "from the assembly line to the feeding station".

[0023] like Figure 6 As shown, in some embodiments, the servo motor 52 of the unloading mechanism 5 drives the sliding slider of the CCM module 51 to move, thereby moving the lifting cylinder 53 and the suction cup 54 to above the inspected product of the feeding mechanism 3. The lifting cylinder 53 drives the suction cup 54 to move down and clamp the product. If the product passes inspection, the CCM module 51 moves the product to the qualified unloading area on one side of the frame 6. If the product fails inspection, it is moved to the unqualified unloading area on the other side of the frame 6, thus achieving classified unloading. One aspect is "material picking and positioning," which is achieved through servo motors. Motor 252 drives the sliding slider of CCM module 251, which in turn moves lifting cylinder 253 and suction cup 254 precisely above the product after testing by feeding mechanism 3; secondly, "product suction" is performed, where lifting cylinder 253 drives suction cup 254 to move down and clamp the product, completing the picking action; thirdly, "classification and transfer" is performed, where, according to the product test results (pass / fail), CCM module 251 transfers the product to the corresponding qualified and unqualified unloading areas on both sides of the frame 6, ultimately completing the unloading closed loop "from the testing station to the classification and storage area".

[0024] like Figure 6 As shown, in some embodiments, the device further includes a barcode scanning component and a control program. The barcode scanning component is fixed on the top frame of the feeding mechanism 3 near the loading mechanism 2, and the scanning end of the barcode scanning component faces the product placement area of ​​the feeding module 31. The control program is electrically connected to the barcode scanning component, the tension sensor 45, the servo motor 22, the servo motor 52, the pressing cylinder 32, the limit cylinder 12, and the limit cylinder 33, respectively. It can associate and store the unique product identification information obtained by the barcode scanning component with the pull-out force value detected by the tension sensor 45, and upload it to the customer-designated server to achieve product quality traceability. One aspect is to determine the barcode scanning component. The physical installation position of the feeding mechanism 3 is such that the top frame of the feeding mechanism 3 is close to the side of the feeding mechanism 2 and the scanning end of the working direction faces the product placement area of ​​the feeding module 31, ensuring accurate acquisition of the product identification entering the feeding station; secondly, the connection range of the control program is clearly defined, that is, it is electrically connected to the barcode scanning component, the tension sensor 45 and each core execution component, such as servo motor 1 22, servo motor 2 52, pressing cylinder 32, limit cylinder 1 12 and limit cylinder 2 33, to achieve unified control of equipment actions and data; thirdly, the core function is explained, that is, the unique product identification is associated with the pull-out force data, stored and uploaded to the customer server to build a product quality traceability system.

[0025] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A tensile testing device, comprising a feeding assembly line (1), a feeding mechanism (2), a feeding mechanism (3), a measuring mechanism (4), a discharging mechanism (5), and a frame (6), characterized in that: The frame (6) serves as the overall support foundation for the equipment. Along the length of the frame (6), the feeding line (1), the feeding mechanism (3), and the unloading mechanism (5) are arranged in sequence, and all three are horizontally fixed to the top platform of the frame (6). The measuring mechanism (4) is vertically mounted directly above the feeding mechanism (3), and the feeding mechanism (2) is horizontally spanned between the feeding line (1) and the feeding mechanism (3). All four are fixedly connected to the frame (6). In the measuring mechanism (4), the gantry (41) is gantry-shaped and its bottom two ends are vertically fixed to the top of the frame (6). The sliding plate (42) is vertically embedded in the groove of the inner crossbeam of the gantry (41). The electric screw (43) is horizontally inserted between the inner crossbeam of the gantry (41) and the sliding plate (42). The two ends of the electric screw (43) are threaded to the crossbeam of the gantry (41) and the sliding plate (42) respectively. The lifting module (44) is vertically fixed to the bottom end face of the sliding plate (42). The top of the tension sensor (45) is bolted to the output end of the lifting module (44). The top of the rotary motor (46) is connected to the bottom flange of the tension sensor (45). The top of the measuring head (47) is detachably mounted on the output shaft of the rotary motor (46). In the feeding mechanism (3), the feeding module (31) is laid horizontally on the top of the frame (6) and located directly below the measuring mechanism (4). Vertical frames are provided on both sides of the top of the feeding module (31). The pressing cylinder (32) is fixed vertically downward in the middle of the top frame of the feeding module (31). The limiting cylinder (33) is fixed horizontally on the side of the top frame of the feeding module (31) close to the feeding line (1), and the output end of the limiting cylinder (33) faces the product placement area of ​​the feeding module (31). In the feeding assembly line (1), the assembly line (11) is horizontally fixed at the top of the frame (6) near the end of the feeding mechanism (2), and the conveying direction of the assembly line (11) is towards the feeding mechanism (3); the limiting sheet metal (13) is an L-shaped plate, and the two limiting sheet metals (13) are vertically fixed on both sides of the top of the assembly line (11) to form a product guide channel; the limiting cylinder (12) is horizontally fixed on the end side of the assembly line (11) near the feeding mechanism (3), and the output end of the limiting cylinder (12) can extend into the channel formed by the limiting sheet metal (13); In the feeding mechanism (2), the CCM module 1 (21) is horizontally mounted above the feeding line (1) and the feeding mechanism (3). The two ends of the CCM module 1 (21) are fixedly connected to the vertical support at the top of the frame (6). The servo motor 1 (22) is fixed on the sliding block of the CCM module 1 (21). The lifting cylinder 1 (23) is vertically fixed at the bottom of the servo motor 1 (22). The suction cup 1 (24) is fixed at the bottom of the output end of the lifting cylinder 1 (23) through the connecting seat. The suction cup 1 (24) is located directly above the feeding line (1) and the feeding mechanism (3). In the unloading mechanism (5), the second CCM module (51) is horizontally mounted above the feeding mechanism (3) and the external unloading area of ​​the equipment. Both ends of the second CCM module (51) are fixedly connected to the vertical support at the top of the frame (6). The second servo motor (52) is fixed on the sliding block of the second CCM module (51). The second lifting cylinder (53) is vertically fixed at the bottom of the second servo motor (52). The second suction cup (54) is fixed at the bottom of the output end of the second lifting cylinder (53) through the connecting seat. The second suction cup (54) is located directly above the feeding mechanism (3) and the external unloading area.

2. The tensile testing device according to claim 1, characterized in that: The measuring mechanism (4) drives the sliding plate (42) to move laterally along the crossbeam groove of the gantry frame (41) via an electric screw (43), and in conjunction with the lifting module (44), drives the tension sensor (45), rotary motor (46) and measuring head (47) to move up and down, so as to achieve precise positioning of the measuring head (47) in the horizontal and vertical directions; the rotary motor (46) can drive the measuring head (47) to rotate forward to screw in the product nut and rotate backward to screw out the product nut, and the tension sensor (45) collects the tension data in real time during the screwing process and displays it synchronously through the matching digital display.

3. The tensile testing device according to claim 1, characterized in that: The feeding module (31) of the feeding mechanism (3) can drive the product to move horizontally to the test station directly below the measuring mechanism (4). At this time, the output end of the pressing cylinder (32) extends downward to press the top of the product, and the output end of the limiting cylinder (33) extends horizontally to abut the side of the product, forming a double positioning of "pressing + side limiting" to ensure the coaxial alignment accuracy of the measuring head (47) and the product nut.

4. The tensile testing device according to claim 1, characterized in that: The feed line (11) of the feed line (1) drives the product to move along the guide channel of the limiting sheet metal (13) to the feeding mechanism (3). When the product moves to the end of the feed line (11), the output end of the limiting cylinder (12) extends to block the product, so that the product stays at the preset initial positioning position, which makes it easy for the suction cup (24) of the feed mechanism (2) to accurately align and pick up the product.

5. A tensile testing device according to claim 1, characterized in that: The servo motor (22) of the feeding mechanism (2) drives the sliding slider of the CCM module (21) to move, which in turn moves the lifting cylinder (23) and the suction cup (24) to the product initially positioned on the feeding line (1). The lifting cylinder (23) drives the suction cup (24) to move down and clamp the product before resetting. Then, the product is transferred to the feeding module (31) of the feeding mechanism (3) through the CCM module (21) to complete the feeding action.

6. A tensile testing device according to claim 1, characterized in that: The servo motor 2 (52) of the unloading mechanism (5) drives the sliding slider of the CCM module 2 (51) to move, thereby moving the lifting cylinder 2 (53) and the suction cup 2 (54) to the top of the product after inspection by the feeding mechanism (3). The lifting cylinder 2 (53) drives the suction cup 2 (54) to move down and clamp the product. If the product is qualified, the CCM module 2 (51) moves the product to the qualified unloading area on one side of the frame (6). If the product is unqualified, it is moved to the unqualified unloading area on the other side of the frame (6) to achieve classified unloading.

7. A tensile testing device according to claim 1, characterized in that: The equipment also includes a barcode scanning component and a control program. The barcode scanning component is fixed on the side of the top frame of the feeding mechanism (3) near the loading mechanism (2), and the scanning end of the barcode scanning component faces the product placement area of ​​the feeding module (31). The control program is electrically connected to the barcode scanning component, the tension sensor (45), the first servo motor (22), the second servo motor (52), the pressing cylinder (32), the first limit cylinder (12), and the second limit cylinder (33). It can associate and store the unique product identification information obtained by the barcode scanning component with the pull-out force value detected by the tension sensor (45), and upload it to the customer-designated server to realize product quality traceability.