Transmission adhesive force testing device

Abstract

The utility model belongs to the technical field of adhesive force testing, and particularly relates to a drivable adhesive force testing device. Comprising a bottom plate, a hydraulic cylinder, a scribing head, an operating handle, a clamp and a transmission assembly, the transmission assembly is installed on the bottom plate and comprises a lead screw and a driving motor, the lead screw is connected with the power output end of the driving motor, the lead screw is connected with the clamp, the hydraulic air cylinder is installed above the bottom plate, and the scribing head is installed on a piston rod of the hydraulic air cylinder. The operating handle is installed on the hydraulic air cylinder, and the clamp is installed on the bottom plate. The scribing head is driven by the hydraulic cylinder to move up and down so as to be in contact with a test plate in the clamp, the test plate in the clamp is driven by the transmission assembly to move in the length direction of the lead screw, scratches are left on the test plate, and the scribing head can be controlled to automatically complete scribing on the test plate through the lead screw and the driving motor. And the adhesive force testing efficiency is realized.

Description

Technical Field

[0001] This utility model belongs to the field of adhesion testing technology, specifically relating to a transmissible adhesion testing device. Background Technology

[0002] Adhesion testing is an important method for evaluating the bond strength between coatings, paints, adhesives, and other materials and the substrate. Traditional adhesion testing devices typically rely on manual operation, where a scratching head is manually pressed onto the test plate and moved in a straight line to create one or more scratches. This method is not only inefficient but also makes it difficult to guarantee the consistency and accuracy of the scratches, especially when testing a large number of samples or when high precision is required, where the influence of human factors is particularly significant.

[0003] With the development of technology and the increasing demands for product quality, adhesion testing equipment with higher levels of automation has gradually become a key focus of industry demand. Although some semi-automatic or fully automatic adhesion testing devices have emerged in the existing technology, these devices often suffer from problems such as complex structure, high cost, and inconvenient maintenance, which limits their widespread application in small and medium-sized enterprises.

[0004] Chinese Patent CN214041101U discloses a semi-vulcanized coating adhesion testing device, including a mounting base and an adhesion tester. The adhesion tester is mounted on top of the mounting base. A support block is fixedly mounted on one side of the top of the mounting base, and a cleaning component is located at the bottom of the other side of the support block. The cleaning component includes a first multi-stage hydraulic cylinder, which is fixedly mounted at the bottom of the other side of the support block. A connecting block is fixedly mounted at the output end of the first multi-stage hydraulic cylinder. The beneficial effects of this invention are: by using two second multi-stage hydraulic cylinders to drive two sliders, which cooperate with two sliding grooves respectively, the two sliders drive the adhesion tester, facilitating better control of the working height of the testing device. By using the first multi-stage hydraulic cylinder to drive the connecting block, the connecting block drives a motor, and the output shaft of the motor drives a brush plate, which cooperates with a water tank and a water injection hopper, facilitating better cleaning of the testing device after testing. The above device lacks an automatic transmission mechanism, which cannot realize automatic control and scratching process of the test plate, resulting in low overall testing efficiency. Therefore, it is urgent for those skilled in the art to solve the above technical problems. Summary of the Invention

[0005] The present invention addresses the problem that in existing technologies, the container top plate requires overall installation, and the aforementioned devices lack an automatic transmission mechanism, making it impossible to achieve automatic control and marking of the test plate, resulting in low overall testing efficiency.

[0006] The technical solutions adopted in this utility model are as follows:

[0007] A transmissible adhesion testing device includes a base plate, a hydraulic cylinder, a swivel head, an operating handle, a clamp, and a transmission assembly.

[0008] The transmission assembly is mounted on the base plate. The transmission assembly includes a lead screw and a drive motor. The lead screw is connected to the power output end of the drive motor and to the clamp. The hydraulic cylinder is mounted above the base plate. The piston rod of the hydraulic cylinder is equipped with the sliding head. The operating handle is mounted on the hydraulic cylinder. The clamp is mounted on the base plate.

[0009] By adopting the above technical solution and using transmission components (including a lead screw and a drive motor), the test plate can be moved automatically, thereby achieving a continuous and efficient adhesion testing process. Compared with manual operation, the degree of automation is significantly improved, greatly shortening the testing time for each sample. The drive motor precisely controls the rotation of the lead screw, thereby driving the test sample on the fixture to make accurate position adjustments. This ensures the consistency of the position of the scribing head when it contacts the sample surface each time, improving the repeatability and accuracy of the test results. Equipped with an operating handle, users can easily adjust the action parameters of the hydraulic cylinder (such as the force). The design integrates multiple functional components, such as hydraulic cylinders for providing pressure, fixtures for fixing the sample, and lead screws for transmission. These components work together to not only meet the basic adhesion testing requirements but also provide the possibility for subsequent expansion of other related functions. Automated operation reduces the need for direct human intervention, thereby reducing the safety risks caused by misoperation to a certain extent. In addition, the reasonable design can also prevent injury to the operator during equipment operation.

[0010] Furthermore, the transmission assembly includes two parallel lead screws and two corresponding drive motors;

[0011] The drive motor is fixed to the base plate by a mounting plate. The mounting plate has a concave structure with positioning holes at both ends. The lead screw passes through the positioning holes, and the bottom of the mounting plate is fixed to both sides of the base plate by screws.

[0012] By adopting the above technical solution, using two parallel lead screws provides a more stable support structure, especially when handling larger or heavier samples, effectively avoiding bending or displacement problems that may occur with a single lead screw. This ensures the smoothness and accuracy of the fixture movement. The two lead screws work together, distributing the load on a single lead screw, thereby improving the load-bearing capacity of the entire transmission system. This is particularly important for applications requiring the testing of adhesion to heavy materials. The dual lead screw and dual drive motor design increases redundancy; even if one motor or lead screw fails, the other can still maintain basic operation, reducing the risk of overall system failure and improving the reliability and durability of the equipment. Using two drive motors enables more precise synchronous control, ensuring that the two lead screws move at the same speed and direction, thus ensuring that the test sample on the fixture remains horizontal, which is crucial for the consistency of adhesion test results.

[0013] Furthermore, the clamp is provided with connecting blocks at both ends, the connecting blocks are welded to both sides of the clamp, and the connecting blocks are provided with through holes, through which the lead screw passes.

[0014] By adopting the above technical solution and fixing the connecting blocks to both sides of the fixture through welding, the overall structural strength and stability of the fixture can be significantly improved. This is particularly important for testing scenarios that withstand large tensile or compressive forces, effectively preventing fixture deformation or damage. The through holes on the connecting blocks provide a precise guide path for the lead screw, ensuring that the fixture moves smoothly along the predetermined trajectory and reducing the possibility of offset or misalignment. This design helps improve the repeatability and accuracy of the testing process. Using connecting blocks with through holes as the connecting parts between the lead screw and the fixture makes the assembly process simpler and faster. In addition, when it is necessary to adjust or replace the fixture, it can be done quickly by loosening the connecting parts (such as nuts) between the lead screw and the connecting blocks, improving maintenance efficiency.

[0015] Furthermore, a support arm is provided on the base plate, and a control panel is provided on the support arm. The control panel is electrically connected to a hydraulic cylinder to adjust the stroke and pressure of the piston rod. The hydraulic cylinder is installed on the top of the support arm.

[0016] By adopting the above technical solution, the control panel is directly mounted on the support arm, allowing operators to easily operate it without having to move it to other locations or equipment to adjust parameters. This improves work efficiency and reduces operation time. Through electrical connection, the control panel provides precise adjustment functions, enabling fine-tuning of the piston rod stroke and pressure of the hydraulic cylinder. This is particularly important for applications requiring high-precision machining or testing, helping to ensure the consistency and stability of product quality. The design of mounting the hydraulic cylinder on top of the support arm makes the entire device more compact and rational, reducing the footprint. At the same time, this layout facilitates maintenance and repair work, improving space utilization. The control panel integrated into the support arm can be designed with safety functions such as an emergency stop button, allowing operators to quickly take measures to reduce risks in case of abnormalities. In addition, the rational layout can also avoid signal interference problems caused by excessively long wiring, further ensuring the safety of use.

[0017] Furthermore, the fixture includes a test plate clamping block, a support plate, a connecting rod, an adjusting handle, and a positioning block. The test plate clamping blocks are welded to both sides of the support plate. The connecting rod passes through the clamping block, and the end of the connecting rod is welded to the test plate clamping block. The adjusting handle is mounted on the connecting rod, and the positioning block is welded to the support plate.

[0018] By adopting the above technical solution, test plate clamping blocks are welded to both sides of the support plate, providing strong fixing force and ensuring that the test plate will not slide or shift during operation. The welded connection ensures structural stability, increases the overall durability and reliability of the device, and allows users to finely adjust the clamping force and position as needed by adjusting the handle mounted on the connecting rod. This makes the fixture suitable for test plates of different sizes and shapes, providing high adaptability and flexibility. The design of the connecting rod passing through the clamping block simplifies the operation process, making clamping and disassembly faster and more convenient. This is particularly important for applications that frequently change test plates, significantly improving work efficiency. Precise control of the clamping force helps avoid damage or deformation of the test plate due to over-clamping, while also reducing the risk of injury to operators. Furthermore, the presence of the positioning block helps to quickly and accurately position the test plate, further enhancing safety during use.

[0019] Furthermore, the connecting rod surface is provided with an external thread, and the inner side of the adjusting handle is provided with an internal thread that matches the external thread.

[0020] By employing the above technical solution and through the precise fit of internal and external threads, users can adjust the tightness of the clamp with great precision. When rotating the adjustment handle, the friction and self-locking properties between the threads allow for precise movements down to the millimeter level or even smaller, providing just the right amount of pressure on the test plate. The threaded connection provides an additional mechanical locking effect, ensuring that once adjusted to the desired position, it is not prone to loosening or displacement due to external vibrations or accidental impacts during operation. This guarantees that the clamp maintains optimal working condition throughout the entire testing process. This design simplifies the clamp operation process, allowing for quick and easy adjustment of the clamping blocks without the need for additional tools. Users can easily control the clamping force simply by rotating the adjustment handle, greatly improving work efficiency.

[0021] This utility model has the following beneficial effects:

[0022] 1. This utility model achieves high-precision adjustment of the clamp tightness by setting an external thread on the surface of the connecting rod and configuring a corresponding internal thread on the inner side of the adjusting handle. It allows users to adjust the pressure of the clamp in very small increments, ensuring accurate adaptation to test plates of different thicknesses and sizes. The self-locking characteristic between the internal and external threads enhances the stability of the overall structure and prevents positional changes caused by external vibration or accidental collisions during operation.

[0023] 2. This utility model simplifies the operation process of the clamp, making it easy to adjust the clamping block without the need for additional tools, which greatly improves work efficiency. The reasonable thread design can evenly distribute the pressure applied to the contact surface, reduce local wear, and help extend the service life of the entire device. This design also supports necessary maintenance and parts replacement, further improving the durability and economy of the equipment.

[0024] 3. The accurate clamping force control function of this utility model avoids the risk of test board damage caused by excessive clamping, thus improving the safety of use. Since the position of the clamping block can be changed by rotating the adjustment handle, this design is suitable for test boards of various specifications and has strong adaptability. This not only reduces the cost of preparing multiple specifications of fixtures, but also allows one fixture to meet a wider range of application needs, increasing its practical value. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 for Figure 1 Enlarged diagram of section A in the middle;

[0027] Figure 3 This is a schematic diagram of the structure of this practical fixture;

[0028] Figure 4 for Figure 1 Enlarged schematic diagram of section B.

[0029] Wherein: 1-Base plate; 11-Mounting plate; 111-Positioning hole; 2-Hydraulic cylinder; 21-Operating handle; 3-Scrubbing head; 4-Clamp; 41-Connecting block; 411-Through hole; 42-Test plate clamping block; 43-Support plate; 44-Connecting rod; 45-Adjusting handle; 46-Positioning block; 5-Transmission assembly; 51-Lead screw; 52-Drive motor; 6-Support arm; 61-Control panel. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings and specific preferred embodiments.

[0031] In the description of this utility model, it should be understood that the terms "left side," "right side," "upper part," "lower part," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and 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. "First," "second," etc., do not indicate the importance of the components, and therefore should not be construed as a limitation of this utility model. The specific dimensions used in this embodiment are only for illustrating the technical solution and do not limit the protection scope of this utility model.

[0032] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 As can be seen, the present invention provides a transmissive adhesion testing device, which uses a base plate 1 as the basic support structure of the entire device, on which several key components are installed. Specifically, two drive motors 52 are fixed to the base plate 1 through a concave mounting plate 11, and the power output end of each drive motor 52 is directly connected to a lead screw 51, so that the drive motor 52 can drive the lead screw 51 to rotate; the clamp 4 is provided with connecting blocks 41 with through holes 411 at both ends, and the lead screw 51 passes through these through holes 411, so when the lead screw 51 rotates, it can push or pull the clamp 4 to move along its axial direction;

[0033] The hydraulic cylinder 2 is mounted above the base plate 1 and provides stable support through the top of the support arm 6. Its piston rod is equipped with a scratch head 3 for performing actual scratching operations to test adhesion, while the operating handle 21 allows the user to manually adjust the action of the hydraulic cylinder 2.

[0034] The control panel 61 is located on the support arm 6 and is electrically connected to the hydraulic cylinder 2, allowing the user to adjust the stroke of the piston rod and the applied pressure.

[0035] The fixture 4 includes test plate clamping blocks 42 welded to both sides of the support plate 43. One end of the connecting rod 44 is welded to the test plate clamping block 42, and the other end is equipped with an adjusting handle 45. The surface of the connecting rod 44 has external threads, and the adjusting handle 45 has matching internal threads. Rotating the adjusting handle 45 allows the connecting rod 44 to move back and forth to adjust the position of the clamping blocks to adapt to test plates of different sizes. At the same time, the positioning block 46 is welded to the support plate 43 to help stabilize the entire fixture 4 structure and ensure that the fixture will not shift during the test. In this way, the device achieves effective fixation and precise swiping test of the test plate, and can also flexibly adjust the position of the fixture and the operating parameters of the hydraulic cylinder as needed, improving the testing efficiency and accuracy.

[0036] The control panel 61 allows users to easily adjust the pressure applied by the hydraulic cylinder 2. This enables the setting of the most suitable test pressure for test samples of different materials, thicknesses, or properties, ensuring the accuracy and reliability of the test results. Appropriate pressure is crucial for simulating adhesion under actual usage conditions. The control panel 61 also allows users to precisely set the stroke length of the hydraulic cylinder piston rod, i.e., its extension and retraction. This is essential for ensuring that the swivel head 3 performs the swivel operation along a predetermined path. Different test requirements may necessitate different swivel distances; by precisely controlling the piston rod's movement distance, diverse test requirements can be met, and test consistency can be improved. In addition to real-time control, the control panel 61 can also be used to record key data during the test process, such as the applied pressure value and the piston rod displacement.

[0037] During testing, the test plate is first placed on the support plate 43, and the test plate clamping block 42 is driven by the adjustment handle 45 to clamp the test plate, so that the test plate is located below the scribing head 3. The hydraulic cylinder 2 drives the scribing head 3 to press down and contact the test plate on the fixture 4. The drive motors 52 on both sides of the base plate 1 are started. The drive motors 52 drive the lead screw 51 to rotate, thereby moving the support plate 43 along the length of the lead screw 51. The scribing head 3 leaves scratches on the test plate. Then, by operating the handle 21 to rotate the hydraulic cylinder 2, the drive motor 52 reverses and the test plate returns to the initial position. Then, the drive motor 52 rotates forward to complete the scribing in other directions on the test plate.

[0038] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and all such equivalent transformations fall within the protection scope of the present invention.

Claims

1. A transmissible adhesion testing device, characterized in that: It includes a base plate (1), a hydraulic cylinder (2), a slitting head (3), an operating handle (21), a clamp (4), and a transmission assembly (5); The transmission assembly (5) is installed on the base plate (1). The transmission assembly (5) includes a lead screw (51) and a drive motor (52). The lead screw (51) is connected to the power output end of the drive motor (52). The lead screw (51) is connected to the clamp (4). The hydraulic cylinder (2) is installed above the base plate (1). The piston rod of the hydraulic cylinder (2) is equipped with the slitting head (3). The operating handle (21) is installed on the hydraulic cylinder (2). The clamp (4) is installed on the base plate (1).

2. The transmissible adhesion testing device according to claim 1, characterized in that: The transmission assembly (5) includes two parallel lead screws (51) and two corresponding drive motors (52). The drive motor (52) is fixed to the base plate (1) by the mounting plate (11). The mounting plate (11) has a concave structure and positioning holes (111) are provided at both ends. The lead screw (51) passes through the positioning holes (111). The bottom of the mounting plate (11) is fixed to both sides of the base plate (1) by screws.

3. The transmissible adhesion testing device according to claim 2, characterized in that: The clamp (4) has connecting blocks (41) at both ends. The connecting blocks (41) are welded to both sides of the clamp (4). The connecting blocks (41) have through holes (411) and the lead screw (51) passes through the through holes (411).

4. The transmissible adhesion testing device according to claim 1, characterized in that: A support arm (6) is provided on the base plate (1), and a control panel (61) is provided on the support arm (6). The control panel (61) is electrically connected to a hydraulic cylinder (2) to adjust the stroke and pressure of the piston rod. The hydraulic cylinder (2) is installed on the top of the support arm (6).

5. The transmissible adhesion testing device according to claim 3, characterized in that: The fixture (4) includes a test plate clamping block (42), a support plate (43), a connecting rod (44), an adjusting handle (45), and a positioning block (46). The test plate clamping block (42) is welded to both sides of the support plate (43). The connecting rod (44) passes through the clamping block, and the end of the connecting rod (44) is welded to the test plate clamping block (42). The adjusting handle (45) is installed on the connecting rod (44), and the positioning block (46) is welded to the support plate (43).

6. The transmissible adhesion testing device according to claim 5, characterized in that: The connecting rod (44) has an external thread on its surface, and the adjusting handle (45) has an internal thread that matches the external thread on its inner side.

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