An electro-hydraulic tong endurance testing device

Abstract

The utility model discloses a kind of electric hydraulic tong endurance test devices, including base, positioning module, test module, temperature sensor and control unit;Positioning module is used to fix the electric hydraulic tong to be measured, test module realizes the reciprocating press of switch, temperature sensor monitors equipment temperature, and control unit coordinates each component work.Through the combination of mechanical structure and electric control module, replace artificial endurance test, greatly improve test efficiency, guarantee the standardization and reliability of test result, while temperature monitoring can be expanded, reduce test cost, suitable for the test of multiple similar structure electric tools, with extensive practicability.

Description

Technical Field

[0001] This utility model relates to power tool testing technology, specifically to a durability testing device for electric hydraulic clamps. Background Technology

[0002] In the production process of electric hydraulic clamps, durability testing is required for both performance verification before mass production and quality inspection after mass production. The core requirement of this test is: after connecting the electric hydraulic clamp to a lithium battery or DC power supply, repeatedly press the switch to start the equipment without load, and the cumulative number of starts must reach 20,000. The criterion for passing the test is that the equipment starts without abnormalities and all functions remain normal.

[0003] Currently, the industry commonly uses manual button pressing to complete the above tests. This testing method has several significant drawbacks: First, the testing process requires continuous and repetitive pressing, which is extremely physically demanding for testers and can easily lead to fatigue over long periods. Second, manual pressing is inefficient; completing 20,000 tests takes a considerable amount of time, severely impacting production and testing progress. Third, manual testing is costly, requiring companies to invest dedicated manpower. Fourth, test results are highly susceptible to human factors; different testers may apply varying pressure and pressing frequency, and manual counting is prone to errors, resulting in a lack of standardization and reliability in the test results. Fifth, manual testing can only count the number of starts and cannot monitor the equipment temperature during the test, making it difficult to comprehensively reflect the equipment's durability performance.

[0004] Therefore, there is an urgent need for an electric hydraulic clamp durability testing device that can replace manual labor, improve testing efficiency, ensure the reliability of test results, and enable temperature monitoring, in order to solve the above-mentioned problems existing in the current technology. Utility Model Content

[0005] To address the technical problems of low efficiency, high cost, and unreliable results caused by manual labor in existing electro-hydraulic clamp durability testing, this utility model provides an electro-hydraulic clamp durability testing device that achieves automated and standardized durability testing through the coordinated work of mechanical structure and electronic control module.

[0006] To achieve the above and other related objectives, the technical solution provided by this utility model is: an electric hydraulic clamp durability testing device, comprising:

[0007] Base;

[0008] A positioning module is provided on the base and is used to fix the electro-hydraulic clamp to be tested;

[0009] A test module, which is mounted on the base and used to reciprocate pressing the switch of the electro-hydraulic clamp under test;

[0010] A temperature sensor, which is mounted on the base and used to test the temperature of the electro-hydraulic clamp under test;

[0011] The control unit is connected to both the test module and the temperature sensor.

[0012] The preferred technical solution is as follows: the positioning module consists of a support block assembly, a quick clamp assembly, a limiting post, and a pushing mechanism. The support block assembly is fixed on the base and is used to support the electro-hydraulic clamp under test. The quick clamp assembly is fixed on the base and is used to press the electro-hydraulic clamp under test onto the support block assembly. The limiting post is fixed on the base and is configured corresponding to the handle of the electro-hydraulic clamp under test. The pushing mechanism is fixed on the base and is configured corresponding to the battery of the electro-hydraulic clamp under test. The pushing mechanism is used to press the electro-hydraulic clamp under test onto the limiting post.

[0013] The preferred technical solution is as follows: the support block assembly includes support block one and support block two, and the top sides of support block one and support block two are provided with a conformal bearing surface that matches the electric hydraulic clamp to be tested.

[0014] The preferred technical solution is as follows: the quick clamp assembly includes quick clamp one and quick clamp two, quick clamp one is fixed on the base and is correspondingly arranged with support block one, and quick clamp two is fixed on the base and is correspondingly arranged with support block two.

[0015] The preferred technical solution is as follows: the jacking mechanism includes a fixed plate, a top plate, a guide post, a screw, and a knob. The fixed plate is vertically fixed on the base. The fixed plate has a guide hole. The guide post is slidably disposed in the guide hole and faces the limiting post. The top plate is fixed to one end of the guide post near the limiting post. The fixed plate also has a screw hole. The screw is screwed into the screw hole and is parallel to the guide post. One end of the screw is rotatably connected to the top plate, and the knob is fixed to the other end of the screw.

[0016] The preferred technical solution is as follows: the test module comprises a chassis, a motor, an eccentric shaft, a connecting rod, a guide sleeve, a guide rod, a connecting block, and a pressing block. The chassis is fixed on the base, the guide sleeve is fixed inside the chassis and faces the switch of the electro-hydraulic clamp under test, the chassis has a through hole corresponding to the guide sleeve, the guide rod passes through the through hole into the guide sleeve, one end of the guide rod extending out of the chassis is connected to the pressing block, and one end of the guide rod extending into the chassis is connected to the connecting block. The motor is fixed on the chassis and is used to drive the eccentric shaft to rotate. One end of the connecting rod is rotatably connected to the connecting block, and the other end of the connecting rod is rotatably connected to the output shaft of the eccentric shaft.

[0017] The preferred technical solution is as follows: the end of the guide rod that extends into the chassis is provided with a thread, the connecting block is provided with a screw hole, and the guide rod and the connecting block are connected by the thread and the screw hole.

[0018] A preferred technical solution is as follows: a bracket is provided in the chassis, and a U-shaped photoelectric sensor one and a U-shaped photoelectric sensor two are provided on the bracket along the moving direction of the connecting block. A baffle is provided on the bottom side of the connecting block, and the baffle is adapted to the U-shaped photoelectric sensor one and the U-shaped photoelectric sensor two.

[0019] The preferred technical solution is that the first U-shaped photoelectric sensor, the second U-shaped photoelectric sensor, and the motor are all connected to the control unit.

[0020] Due to the application of the above technical solution, the beneficial effects of this utility model are as follows:

[0021] It replaces manual pressing and greatly improves testing efficiency: The test module's motor, eccentric shaft and other structures realize the automatic reciprocating pressing of the switch. The pressing frequency is stable and adjustable, and the time to complete 20,000 tests is significantly shortened. No continuous manual operation is required, which effectively solves the problem of low efficiency of manual testing.

[0022] Reduce testing costs: Automated testing eliminates the need for dedicated testing personnel, reducing the company's labor costs and avoiding test interruptions caused by human fatigue, further reducing indirect costs;

[0023] To ensure the standardization and reliability of test results: precise counting is achieved through the cooperation of the control unit and photoelectric sensors, avoiding errors caused by manual counting; the pressure and frequency are guaranteed to be consistent by the mechanical structure, eliminating the influence of human factors on the test results and making the test results more valuable for reference.

[0024] Temperature monitoring: The device monitors the equipment temperature in real time through a temperature sensor, and can output temperature change data in conjunction with the control unit. Compared with manual testing, which can only count the number of starts, this device can comprehensively reflect the performance changes of the equipment during the durability test, providing a more comprehensive basis for product quality assessment.

[0025] Easy to install and widely applicable: The contoured bearing surface of the positioning module and the adjustable jacking mechanism and guide rod structure enable it to be adapted to electric hydraulic clamps of different specifications with little change in size. At the same time, the modular design of this device can also be applied to other electric tools with the same testing requirements, such as wire strippers, making it highly versatile. Attached Figure Description

[0026] Fig. 1 This is a schematic diagram of the electric hydraulic clamp durability testing device involved in this utility model.

[0027] Fig. 2 This is a schematic diagram of the internal structure of the test module involved in this utility model. Detailed Implementation

[0028] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0029] Please see Figs. 1-2 It should be noted that in the description of this utility model, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. These terms are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. The terms "horizontal," "vertical," and "suspended," etc., do not indicate that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0030] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Example:

[0032] like Fig. 1 As shown, an electric hydraulic clamp durability testing device includes a base 1, a positioning module 2, a testing module 3, a temperature sensor (not shown), and a control unit 4.

[0033] The base 1 is made of high-strength metal to ensure the overall structural stability of the device. The positioning module 2 is installed on one side of the base 1. Support block 1 211 and support block 212 are fixed to the base 1 with bolts. The top contoured bearing surfaces of both conform to the shape of the electric hydraulic clamp 9 under test, thus supporting the equipment. Quick clamp 1 221 and quick clamp 222 are fixed to the base 1 with bolts and are located beside support block 1 211 and support block 212 respectively. The pressure head of the quick clamp can press down on the main body of the electric hydraulic clamp 9 under test. The limiting post 23 is fixed to the base 1, and its position corresponds to the handle end of the electric hydraulic clamp 9 under test. The fixing plate 241 of the jacking mechanism 24 is vertically fixed on the base 1. The guide post 243 is slidably inserted into the guide hole of the fixing plate 241. The top plate 242 is welded to the end of the guide post 243 near the limiting post 23. The screw (not shown) is screwed into the screw hole of the fixing plate 241. One end of the screw is rotatably connected to the top plate 242 through a bearing, and the other end is fixedly connected to the knob 245. Rotating the knob 245 can push the top plate 242 to move towards the limiting post 23, pressing the battery end of the electric hydraulic clamp 9 to be tested onto the limiting post 23, thus completing the fixing of the equipment.

[0034] like Fig. 2 As shown, the test module 3 is installed on the other side of the base 1. The housing 31 is fixed to the base 1 with bolts. The guide sleeve 35 is fixed inside the housing 31, with its axis facing the switching direction of the electro-hydraulic clamp 9 under test. The guide rod 36 passes through the through holes on the guide sleeve 35 and the housing 31. One end of the guide rod 36 extending out of the housing 31 is fixedly connected to the pressing block 38, and the other end extending into the housing 31 is connected to the connecting block 37 by threads (the threaded connection facilitates the adjustment of the length of the guide rod 36 extending out of the housing, so as to adjust the connection between the pressing block 38 and the switch). (Distance between them); Motor 33 is fixed on the housing 31. The output shaft of Motor 33 is fixedly connected to Eccentric Shaft 32. One end of Connecting Rod 34 is rotatably connected to Connecting Block 37, and the other end is rotatably connected to the eccentric end of Eccentric Shaft 32. U-shaped photoelectric sensor 1 5 and U-shaped photoelectric sensor 2 6 are installed on the bracket 39 inside the housing 31 along the moving direction of Connecting Block 37. Baffle 7 is welded to the bottom side of Connecting Block 37. Baffle 7 can pass through the slots of U-shaped photoelectric sensor 1 5 and U-shaped photoelectric sensor 2 6 as Connecting Block 37 moves.

[0035] The temperature sensor is fixed on the base 1, with its probe facing the main body of the electric hydraulic clamp 9 under test, and is used to monitor the temperature of the equipment during the test. The control unit 4 is a PLC controller, which is electrically connected to the motor 33, the temperature sensor, the U-shaped photoelectric sensor 5, and the U-shaped photoelectric sensor 6. The control unit 4 is equipped with a display screen and control buttons, which can set parameters such as the number of tests and the pressing frequency, and display information such as the test progress, current temperature, and cumulative number of tests in real time.

[0036] The working process of this embodiment is as follows: The electric hydraulic clamp 9 to be tested is placed on the contour bearing surface of support block 1 211 and support block 2 212, so that the end of the handle is in contact with the limiting post 23. The knob 245 is rotated to push the top plate 242 to press the battery end. Then, the quick clamp 1 221 and quick clamp 222 are operated to press the main body of the device. The number of tests (e.g., 20,000 times) and the pressing frequency are set by the control unit 4, and the test program is started. The motor 33 drives the eccentric shaft 33 to rotate, and through the connecting rod 34, it drives the connecting block 37 and the guide rod 36 along the guide sleeve 35. The switch of the electric hydraulic clamp is periodically pressed by the pressing block 38 as the connecting block 37 moves. When the connecting block 37 moves, the baffle 7 alternately passes through the U-shaped photoelectric sensor 5 and the U-shaped photoelectric sensor 6. The sensors transmit signals to the control unit 4 to achieve accurate counting of the number of presses. The temperature sensor monitors the equipment temperature in real time and transmits the data to the control unit 4. When the cumulative number of presses reaches the set value, the control unit 4 controls the motor 33 to stop working and completes the test. If the temperature exceeds the set safety range during the test, the control unit 4 will issue an alarm and stop the test.

[0037] Therefore, this utility model has the following advantages:

[0038] It replaces manual pressing and greatly improves testing efficiency: The test module's motor, eccentric shaft and other structures realize the automatic reciprocating pressing of the switch. The pressing frequency is stable and adjustable, and the time to complete 20,000 tests is significantly shortened. No continuous manual operation is required, which effectively solves the problem of low efficiency of manual testing.

[0039] Reduce testing costs: Automated testing eliminates the need for dedicated testing personnel, reducing the company's labor costs and avoiding test interruptions caused by human fatigue, further reducing indirect costs;

[0040] To ensure the standardization and reliability of test results: precise counting is achieved through the cooperation of the control unit and photoelectric sensors, avoiding errors caused by manual counting; the pressure and frequency are guaranteed to be consistent by the mechanical structure, eliminating the influence of human factors on the test results and making the test results more valuable for reference.

[0041] Temperature monitoring: The device monitors the equipment temperature in real time through a temperature sensor, and can output temperature change data in conjunction with the control unit. Compared with manual testing, which can only count the number of starts, this device can comprehensively reflect the performance changes of the equipment during the durability test, providing a more comprehensive basis for product quality assessment.

[0042] Easy to install and widely applicable: The contoured bearing surface of the positioning module and the adjustable jacking mechanism and guide rod structure enable it to be adapted to electric hydraulic clamps of different specifications with little change in size. At the same time, the modular design of this device can also be applied to other electric tools with the same testing requirements, such as wire strippers, making it highly versatile.

[0043] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. An electric hydraulic clamp durability testing device, characterized in that, include: Base; A positioning module is provided on the base and is used to fix the electro-hydraulic clamp to be tested; A test module, which is mounted on the base and used to reciprocate pressing the switch of the electro-hydraulic clamp under test; A temperature sensor, which is mounted on the base and used to test the temperature of the electro-hydraulic clamp under test; A control unit is connected to both the test module and the temperature sensor.

2. The electric hydraulic clamp durability testing device according to claim 1, characterized in that: The positioning module consists of a support block assembly, a quick clamp assembly, a limiting post, and a jacking mechanism. The support block assembly is fixed on the base and is used to support the electro-hydraulic clamp under test. The quick clamp assembly is fixed on the base and is used to press the electro-hydraulic clamp under test onto the support block assembly. The limiting post is fixed on the base and is configured corresponding to the handle of the electro-hydraulic clamp under test. The jacking mechanism is fixed on the base and is configured corresponding to the battery of the electro-hydraulic clamp under test. The jacking mechanism is used to press the electro-hydraulic clamp under test onto the limiting post.

3. The electric hydraulic clamp durability testing device according to claim 2, characterized in that: The support block assembly includes support block one and support block two. The top sides of both support block one and support block two are provided with a contoured bearing surface that matches the electro-hydraulic clamp to be tested.

4. The electric hydraulic clamp durability testing device according to claim 3, characterized in that: The quick-clamp assembly includes quick-clamp one and quick-clamp two. Quick-clamp one is fixed on the base and is correspondingly arranged with support block one. Quick-clamp two is fixed on the base and is correspondingly arranged with support block two.

5. The electric hydraulic clamp durability testing device according to claim 2, characterized in that: The jacking mechanism includes a fixed plate, a top plate, a guide post, a screw, and a knob. The fixed plate is vertically fixed to the base. The fixed plate has a guide hole. The guide post is slidably disposed in the guide hole and faces the limiting post. The top plate is fixed to one end of the guide post near the limiting post. The fixed plate also has a screw hole. The screw is screwed into the screw hole and is parallel to the guide post. One end of the screw is rotatably connected to the top plate, and the knob is fixed to the other end of the screw.

6. The electric hydraulic clamp durability testing device according to claim 1, characterized in that: The test module comprises a chassis, a motor, an eccentric shaft, a connecting rod, a guide sleeve, a guide rod, a connecting block, and a pressing block. The chassis is fixed on the base, and the guide sleeve is fixed inside the chassis and oriented towards the switch of the electro-hydraulic clamp under test. The chassis has a through hole corresponding to the guide sleeve. The guide rod passes through the through hole into the guide sleeve. One end of the guide rod extending out of the chassis is connected to the pressing block, and the other end of the guide rod extending into the chassis is connected to the connecting block. The motor is fixed on the chassis and is used to drive the eccentric shaft to rotate. One end of the connecting rod is rotatably connected to the connecting block, and the other end of the connecting rod is rotatably connected to the output shaft of the eccentric shaft.

7. The electric hydraulic clamp durability testing device according to claim 6, characterized in that: The guide rod has a threaded end that extends into the chassis, and the connecting block has a screw hole. The guide rod and the connecting block are connected by the thread and the screw hole.

8. The electric hydraulic clamp durability testing device according to claim 6, characterized in that: The chassis is equipped with a bracket, and a U-shaped photoelectric sensor one and a U-shaped photoelectric sensor two are provided on the bracket along the moving direction of the connecting block. A baffle is provided on the bottom side of the connecting block, and the baffle is adapted to the U-shaped photoelectric sensor one and the U-shaped photoelectric sensor two.

9. The electric hydraulic clamp durability testing device according to claim 8, characterized in that: The first U-shaped photoelectric sensor, the second U-shaped photoelectric sensor, and the motor are all connected to the control unit.

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