Material property testing drive apparatus and testing system

Abstract

This invention discloses a material performance testing drive device and testing system. The material performance testing drive device includes a frame, a test frame, a feeding assembly, and a linkage assembly. The frame has a first slide rail and a second slide rail; the test frame is used to clamp the material to be tested and is slidably mounted on the first slide rail; the feeding assembly is used to move the simulated material to the working position and is slidably mounted on the second slide rail; the linkage assembly includes a rotary drive component, a driving gear, and a driven gear. The rotary drive component is mounted on the frame, and its output shaft is fixedly connected to the driving gear. The driving gear is driven by the test frame, and the driven gear is driven by the feeding assembly. This invention achieves intermittent mechanical coupling between a single drive source and the gear transmission structure in either a meshing or disengaging state. Furthermore, the test frame and the feeding assembly are driven by the same rotary drive component, enabling coordinated and synchronous control of the movement of the material to be tested and the feeding of the simulated material.

Description

Technical Field

[0001] This invention relates to the field of material performance testing technology, and in particular to a material performance testing drive device and testing system. Background Technology

[0002] Blades are widely used in industrial processing and daily life, such as cutting tools in industrial processing and electric clippers and razors in daily life. Blades can be made of steel such as high-speed steel, carbon steel, cemented carbide, ceramics, or other high-performance materials. The cutting part of the blade undergoes special treatments such as grinding and coating to improve sharpness and wear resistance. Therefore, after the blades are manufactured, their sharpness and wear resistance need to be tested under different abrasion and cutting environments (cutting different materials). When testing sharpness and wear resistance, specific load and cutting speed conditions need to be set.

[0003] In existing technologies, when conducting wear resistance or cutting performance tests, the blade made of the material to be tested is usually fixed on a fixture, and a drive mechanism drives the fixture to move, while the simulated material to be rubbed or cut remains stationary. Alternatively, another drive mechanism is used to drive the material to be fed step by step. Referring to a blade wear resistance testing device that is easy to clamp disclosed in Chinese patent application CN221445599U, the material to be tested is fixed, and an electric grinding wheel driven by a first motor is used to perform friction testing on the fixed blade. The blade cannot move, which is difficult to adapt to the test conditions that require the blade and the electric grinding wheel to move simultaneously.

[0004] Furthermore, during the cutting and abrasion test, a roller cutter made of the material under test is mounted on a cutter holder and fixed in its working position. The simulated material to be cut is driven by a gear drive structure, causing it to move relative to the roller cutter to conduct the cutting and abrasion test. For example, Chinese patent application CN108535092A discloses an adjustable installation angle disc roller rotary cutting and rock breaking test machine. The drive mechanism drives the cutter holder to the working position, and then the variable frequency motor drives the pinion to rotate, which in turn drives the external gear slewing bearing meshing with it to rotate, thereby causing the rock box to rotate relative to the roller cutter to conduct the cutting and abrasion test. Since the roller cutter and the simulated material are driven by different drive units, and it is difficult to link the two drive structures, only a single test can be conducted, and continuous cutting simulation tests cannot be performed.

[0005] Currently, equipment used for testing the cutting performance of materials typically involves only the blade moving while the simulated material remains stationary. The blade moves to the simulated material for cutting tests, as illustrated in the dynamic impact cutting test machine disclosed in Chinese patent application CN205562273U. This machine uses gravity to drive the test blade to cut the sample, which is then fixed to the test platform and cannot move for continuous cutting tests. Alternatively, the blade and simulated material are driven and fed by different units, bringing them into contact for cutting performance testing. However, these units are usually cylinders, which rely on an external air source, leading to inflexible equipment deployment and slow pneumatic drive speeds, resulting in low testing efficiency. Furthermore, using different units for the blade and simulated material during numerous cutting performance tests can cause them to lose initial synchronization and phase, preventing them from operating in the preset cutting direction or position, thus affecting the accuracy of the test data. Summary of the Invention

[0006] The technical problem this invention aims to solve is that the blade and the simulated material cannot move simultaneously, failing to meet the requirements of various testing conditions. Furthermore, when the blade and the simulated material need to move, different drive units are required. During numerous material cutting performance tests, the drive units of the blade and the simulated material cannot maintain precise initial synchronization and phase relationship, causing the blade and the simulated material to fail to work in the preset test direction or working position, thus affecting the accuracy of the obtained test data.

[0007] To address the aforementioned technical problems, the present invention provides a material performance testing driving device, comprising a first direction and a second direction intersecting each other, including: The frame has a first slide rail extending in a first direction and a second slide rail extending in a second direction; The test fixture is used to clamp the material to be tested, and the test fixture is slidably mounted on the first slide rail; A feeding assembly is used to move a simulated material to a working position. The simulated material is used to contact the material to be tested to achieve friction or cutting tests. The feeding assembly is slidably mounted on the second slide rail. The linkage component includes a rotary drive, a drive gear, and a driven gear. The rotary drive is mounted on the frame, and the output shaft of the rotary drive is fixedly connected to the drive gear. The drive gear is drivenly connected to the test frame, and the driven gear is drivenly connected to the feeding component. During one revolution of the driving gear, the driving gear has an engaged state with the driven gear and a disengaged state with the driven gear. When the driving gear is engaged, it can drive the test frame to reciprocate along a first direction, and the feeding assembly can reciprocate along a second direction. The simulated material can be driven to the working position or remain stationary by the feeding assembly. When the driving gear is disengaged, it can drive the test frame to reciprocate along the first direction, and the feeding assembly remains stationary relative to the second slide.

[0008] Furthermore, the linkage assembly also includes a first link, one end of which is hinged to the drive gear via a first shaft and the other end is hinged to the test frame. The first shaft is parallel to the output shaft of the rotary drive and has a first eccentricity. The drive gear has a first groove extending radially therein, and the first shaft can slide along the first groove to a preset position and be rotatably connected to the drive gear.

[0009] Furthermore, the linkage assembly also includes a second link, one end of which is hinged to the driven gear via a second shaft, and the other end is hinged to the feeding assembly. The second shaft is parallel to the rotating shaft of the driven gear and has a second eccentricity. The rotating shaft is rotatably connected to the housing of the frame or the rotary drive component.

[0010] Furthermore, the linkage assembly also includes a third link, the feeding assembly includes a mounting frame and a clamping frame, the clamping frame is rotatably connected to the mounting frame, the mounting frame is slidably mounted on the second slide rail, the other end of the second link is hinged to the mounting frame, one end of the third link is hinged to the driven gear via the second shaft, and the other end of the third link is connected to the clamping frame. The simulated material can be driven to the working position or remain stationary by the clamping frame and the mounting frame working together.

[0011] Furthermore, the driving gear has effective teeth that mesh with the driven gear. Along the rotation direction of the driving gear, the end of the effective teeth that meshes with the driven gear is the starting end, and the end of the effective teeth that disengages from the driven gear is the releasing end. The drive gear has a first protective block, which is disposed in the non-tooth region between the starting end and the releasing end, and the first protective block is configured to be disposed close to the starting end. The driven gear has a second protective block, and the second protective block is disposed on the non-meshing surface of the driven gear. The first protective block can abut against the second protective block and cause the driven gear to rotate and mesh with the effective meshing teeth.

[0012] Furthermore, the mounting frame has a feeding groove extending along the second direction, and the clamping frame has a second sliding groove on the side facing the third connecting rod. The other end of the third connecting rod is connected to the clamping frame via a third shaft, and the third shaft slides in the second sliding groove so that when the mounting frame moves toward the working position, the clamping frame rotates and cooperates with the mounting frame to clamp the simulated material and move it to the working position.

[0013] Furthermore, the clamping frame includes a clamping block having the second groove, the clamping block being rotatably connected to the mounting frame, and the clamping block having clamping teeth on one side facing the feeding groove, the clamping teeth cooperating with the groove wall of the feeding groove to clamp simulated materials.

[0014] Furthermore, the material holder also includes an abutment block and a mating block. The abutment block is installed on the material holder, and the mating block is connected to the abutment block. An avoidance opening with an opening facing the feeding groove is formed between the mating block and the abutment block for fitting the cutting end of the material to be tested.

[0015] Furthermore, the mounting bracket has a third sliding groove extending along the first direction, and the material holder can slide along the third sliding groove to a preset position and be rotatably connected to the mounting bracket.

[0016] Furthermore, the frame includes a first frame, a first slide rail, and a second slide rail. The first frame has a first slide rail. The first slide rail and the second slide rail are disposed on the first frame. The first slide rail and the second slide rail are disposed opposite to each other along the second direction and are parallel to the first slide rail. The test frame includes a second frame, a first slider, a second slider, and a third slider. The first slider, the second slider, and the third slider are disposed on the second frame. The first slider and the second slider are slidably connected to the first slide rail and the second slide rail, respectively, and the third slider is slidably connected to the first slide rail.

[0017] Furthermore, the test frame also includes a pressing plate, and the second frame has a placement groove, with the pressing plate covering the placement groove to clamp and fix the material to be tested.

[0018] Furthermore, the frame also includes a third slide rail having the second slide rail, the third slide rail being disposed on the first frame; The mounting bracket includes a third frame having the feeding groove and a fourth slider, wherein the third frame is slidably mounted on the third slide rail via the fourth slider.

[0019] Furthermore, it also includes a storage tank, which is installed on the frame and has a storage cavity for placing the simulated material and a discharge port communicating with the storage cavity.

[0020] Furthermore, the first direction is perpendicular to the second direction.

[0021] The present invention also provides a testing system, including the above-described material property testing drive device.

[0022] Compared with the prior art, the material property testing driving device and testing system of this invention have the following advantages: In this embodiment of the invention, the rotary drive component drives the active gear to rotate. While the active gear rotates, it drives the test frame to reciprocate along the first direction to move to the working position. When the active gear and the driven gear are meshed, the active gear drives the driven gear to rotate. At the same time, the driven gear drives the feeding assembly to move along the second direction. At this time, the feeding assembly can feed the simulated material into the working position and contact the material to be tested to achieve friction or cutting tests; or after the friction or cutting test is completed, during the reset process of the feeding assembly, the simulated material is in a stationary state.

[0023] When the drive gear rotates to the point of disengagement from the driven gear and is in a disengaged state, the test frame is still driven by the drive gear to continue moving along the first direction and leaving the working position. However, the feeding component remains stationary at this time because it loses its driving force. This completes one test cycle, and the cycle is repeated to simulate a continuous test process.

[0024] This embodiment, through the aforementioned structure, enables the simultaneous relative movement of the test material and the simulated material, meeting the needs of different testing scenarios. Furthermore, through intermittent mechanical coupling between a single drive source and the gear transmission structure in either meshing or disengagement states, rotational motion is converted into higher-frequency linear testing actions. The test frame and feeding assembly are driven by the same rotary drive component, enabling coordinated and synchronous control of the movement of the test material and the feeding of the simulated material. This allows the test material and the simulated material to move simultaneously to meet testing or feeding requirements, and maintains the initial synchronization and phase relationship even after multiple test cycles. This ensures that the testing angle and speed of the test material and the simulated material remain stable throughout the entire testing process, thereby reducing testing variables and improving testing accuracy. Attached Figure Description

[0025] The present application will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present application. Furthermore, unless specifically indicated, the drawings are intended only to conceptually represent the composition or structure of the described objects and may contain exaggerated representations, and the drawings are not necessarily drawn to scale.

[0026] Figure 1 This is a schematic diagram of the material performance testing drive device provided in an embodiment of the present invention from a first angle; Figure 2 This is a schematic diagram of the material performance testing drive device provided in an embodiment of the present invention from a second angle; Figure 3 This is a schematic diagram of the material property testing drive device provided in an embodiment of the present invention, excluding the rotary drive component; Figure 4 This is provided by the embodiments of the present invention. Figure 3 A magnified view of part A circled in the diagram; Figure 5 This is a schematic diagram of the structure of the test frame, the material to be tested, the first connecting rod, the first shaft, and the driving gear provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the feeding assembly, second connecting rod, second shaft, third connecting rod, third shaft, and driven gear provided in an embodiment of the present invention. Figure 7 This is a schematic diagram of the structure of the feeding assembly provided in an embodiment of the present invention; Figure 8 This is a schematic diagram of the initial state of the material property testing drive device provided in an embodiment of the present invention; Figure 9 This is a schematic diagram of the state in which the material holder is pressed against the wall of the feeding trough according to an embodiment of the present invention; Figure 10 This is a schematic diagram of the state of the material clamping frame holding the simulated material provided in the embodiment of the present invention; Figure 11 This is a schematic diagram of the material performance testing drive device provided in this embodiment of the invention performing a cutting operation; Figure 12 This is a schematic diagram showing the state of the material holder moving away from the feeding trough wall after cutting, as provided in an embodiment of the present invention. In the diagram, 1 is the frame; 11 is the first slide rail; 12 is the second slide rail; 13 is the first frame; 14 is the first slide rail; 15 is the second slide rail; and 16 is the third slide rail. 2. Test fixture; 21. Second frame; 211. Placement slot; 22. First slider; 23. Second slider; 24. Third slider; 25. Pressure plate; 3. The material to be tested; 4. Feeding assembly; 41. Mounting bracket; 411. Feeding chute; 412. Third slide rail; 413. Third frame; 414. Fourth slider; 42. Material clamping bracket; 421. Second slide rail; 422. Material clamping block; 4221. Clamping tooth; 423. Abutment block; 424. Mating block; 425. Clearance opening; 5. Simulate materials; 6. Linkage assembly; 61. Rotary drive component; 62. Drive gear; 621. First slide groove; 622. Effective meshing tooth; 623. Starting end; 624. Releasing end; 625. First protective block; 626. Non-tooth area; 63. Driven gear; 631. Second protective block; 632. Non-meshing surface; 64. First connecting rod; 65. First shaft; 66. Second connecting rod; 67. Second shaft; 68. Third connecting rod; 69. Third shaft; 7. Storage warehouse. Detailed Implementation

[0027] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0028] like Figures 1 to 3 As shown, the present invention provides a material performance testing drive device with intersecting first and second directions. The material performance testing drive device includes a frame 1, a test frame 2 (for clamping the material to be tested 3), a feeding assembly 4 (for moving the simulated material 5 to the working position), and a linkage assembly 6. The simulated material 5 is used to contact the material to be tested 3 to perform friction or cutting tests. The frame 1 has a first slide rail 11 extending along the first direction and a second slide rail 12 extending along the second direction. The test frame 2 is slidably mounted on the first slide rail 11 to drive the material to be tested 3 to slide along the first direction. The feeding assembly 4 is slidably mounted on the second slide rail 12 to slide along the second direction. The linkage assembly 6 includes a rotary drive member 61, a drive gear 62, and a driven gear 63. The rotary drive member 61 is mounted on the frame 1, and the output shaft of the rotary drive member 61 is fixedly connected to the drive gear 62. The drive gear 62 is drivenly connected to the test frame 2, and the driven gear 63 is drivenly connected to the feeding assembly 4. During one revolution of the drive gear 62, the drive gear 62 has an engaged state with the driven gear 63 and a disengaged state with the driven gear 63. When the drive gear 62 is engaged, it can drive the test frame 2 to reciprocate along the first direction, and the feeding assembly 4 can reciprocate along the second direction. The simulated material 5 can be driven to the working position or remain stationary by the feeding assembly 4. When the drive gear 62 is disengaged, it can drive the test frame 2 to reciprocate along the first direction, and the feeding assembly 4 remains stationary relative to the second slide rail 12.

[0029] Based on the above structure, in this embodiment, the rotary drive 61 drives the drive gear 62 to rotate. While the drive gear 62 rotates, it drives the test frame 2 to reciprocate along the first direction to move to the working position. When the drive gear 62 and the driven gear 63 are engaged, the drive gear 62 drives the driven gear 63 to rotate. At the same time, the driven gear 63 drives the feeding assembly 4 to move along the second direction. At this time, the feeding assembly 4 can feed the simulated material 5 into the working position to contact the material to be tested 3 to achieve friction or cutting test; or after the friction or cutting test is completed, during the reset process of the feeding assembly 4, the simulated material 5 is in a stationary state.

[0030] When the drive gear 62 rotates to disengage from the driven gear 63 and is in a disengaged state, the test frame 2 is still driven by the drive gear 62 to continue moving along the first direction and leave the working position. However, the feeding component 4 remains stationary at this time because it loses its driving force. This completes one test cycle, and the cycle is repeated to simulate the continuous test process.

[0031] This embodiment achieves intermittent mechanical coupling between a single drive source and the gear transmission structure in either a meshing or disengaging state, thereby converting rotational motion into higher-frequency linear cutting or frictional action. Furthermore, the test frame 2 and the feeding assembly 4 are driven by the same rotary drive component 61, enabling coordinated and synchronous control of the movement of the test material 3 and the feeding of the simulated material 5. This allows the test material 3 and the simulated material 5 to maintain their initial synchronization and phase relationship after multiple cyclic tests, thus keeping the cutting angle (or friction angle) and cutting speed (or friction angle) of the test material 3 and the simulated material 5 stable throughout the entire test process. This reduces test variables and improves test accuracy.

[0032] Preferably, in a specific cutting test embodiment, the first direction and the second direction are set perpendicularly to optimize the contact angle between the test material 3 and the simulated material 5, which facilitates better cutting or friction of the simulated material 5 and improves test accuracy. Furthermore, in this embodiment, the rotary drive 61 is a motor.

[0033] like Figure 4 and Figure 5As shown, the linkage assembly 6 also includes a first link 64, one end of which is hinged to the drive gear 62 via a first shaft 65, and the other end is hinged to the test frame 2. The first shaft 65 is parallel to the output shaft of the rotary drive 61 and has a first eccentricity.

[0034] In this embodiment, the first connecting rod 64, the first shaft 65, the driving gear 62, and the test frame 2 together constitute the first crank-slider mechanism. Since the first shaft 65 and the output shaft of the rotary drive 61 have an eccentricity, when the driving gear 62 rotates, the first shaft 65 rotates around the output shaft of the rotary drive 61, thereby driving one end of the first connecting rod 64 to make a circular motion, thereby driving the test frame 2 to reciprocate along the first direction, so as to drive the material to be tested 3 to move back and forth between the working position and its starting position.

[0035] Understandably, the eccentricity between the first shaft 65 and the output shaft of the rotary drive 61 determines the range of motion of the test frame 2 driven by the first connecting rod 64. A larger eccentricity results in a larger swing amplitude of the first connecting rod 64, and consequently a longer stroke for the test frame 2; a smaller eccentricity results in a smaller swing amplitude of the first connecting rod 64, and a shorter stroke for the test frame 2. In this embodiment, the drive gear 62 has a first groove 621 extending radially therein. The first shaft 65 can slide along the first groove 621 to a preset position and rotatably connect with the drive gear 62. Based on this structure, the operator can move the first shaft 65 along the first groove 621 towards the axis of the drive gear 62, or towards the edge of the drive gear 62, to adjust the distance between the first shaft 65 and the output shaft of the rotary drive 61. Once the first shaft 65 is moved to the desired preset position, it is locked using screws or other structures. At this point, its position relative to the center of the drive gear 62 is fixed, and the rotation of the drive gear 62 drives the first shaft 65 to perform a stable eccentric circular motion.

[0036] This embodiment does not require replacing the entire first crank-slider mechanism. The movement stroke of the test frame 2 can be adjusted simply by adjusting the position of the first shaft 65 in the first slide groove 621, so as to be compatible with test materials 3 of different sizes or different test standards, thereby improving the versatility and flexibility of the material performance testing drive device.

[0037] like Figure 3 and Figure 4 As shown, the linkage assembly 6 also includes a second link 66. One end of the second link 66 is hinged to the driven gear 63 via a second shaft 67, and the other end is hinged to the feeding assembly 4. The second shaft 67 is parallel to the rotating shaft of the driven gear 63 and has a second eccentricity. The rotating shaft is rotatably connected to the housing of the frame 1 or the rotary drive 61.

[0038] In this embodiment, the second connecting rod 66, the second shaft 67, the driven gear 63, and the feeding assembly 4 together constitute the second crank-slider mechanism. Since there is a second eccentricity between the second shaft 67 and the shaft of the driven gear 63, when the driving gear 62 drives the driven gear 63 to rotate, the second shaft 67 will make a circular motion around the shaft of the driven gear 63, and at the same time drive one end of the second connecting rod 66 connected thereto to make the same circular motion. Then the second connecting rod 66 will push or pull the feeding assembly 4, so that it reciprocates along the second direction.

[0039] That is, in this embodiment, the intermittent rotation of the driven gear 63 is converted into the linear reciprocating motion of the feeding component 4 through the second crank-slider mechanism. When the material to be tested 3 is being tested, the driven gear 63 is stationary and the feeding component 4 does not move, so as to avoid interference between the material to be tested 3 and the feeding component 4. After the test is completed and reset, the driven gear 63 continues to be driven by the driving gear 62 to rotate, and drives the second connecting rod 66 to send the new simulated material 5 into the working position.

[0040] See also Figure 1 , Figure 4 and Figure 6 The linkage component 6 also includes a third link 68. The feeding component 4 includes a mounting frame 41 and a clamping frame 42. The clamping frame 42 is rotatably connected to the mounting frame 41. The mounting frame 41 is slidably mounted on the second slide rail 12. The other end of the second link 66 is hinged to the mounting frame 41. One end of the third link 68 is hinged to the driven gear 63 via the second shaft 67. The other end of the third link 68 is connected to the clamping frame 42. The simulated material 5 can be driven to the working position or remain stationary by the clamping frame 42 and the mounting frame 41.

[0041] Based on the above structure, when the driven gear 63 rotates, the second shaft 67 simultaneously drives the second connecting rod 66 and the third connecting rod 68 to move. The second connecting rod 66 pushes the mounting frame 41 to move linearly along the second slide rail 12, and the third connecting rod 68 simultaneously pulls or pushes the clamping frame 42, causing it to rotate relative to the mounting frame 41, thereby realizing the automated cycle of clamping, feeding and releasing the simulated material 5.

[0042] like Figures 8 to 12As shown, when the mounting frame 41 moves toward the working position, the clamping frame 42 cooperates with the mounting frame 41 to clamp the simulated material 5. After the cutting or friction test is completed, the second connecting rod 66 drives the mounting frame 41 to move away from the working position. At this time, the third connecting rod 68 drives the clamping frame 42 to rotate, so that the clamping frame 42 rotates and releases the simulated material 5. At this time, the simulated material 5 is in a stationary state. When it moves to its starting position with the mounting frame 41, the third connecting rod 68 drives the clamping frame 42 to rotate in the opposite direction, so as to cooperate with the mounting frame 41 to clamp the simulated material 5. Then the second connecting rod 66 drives the mounting frame 41 to move toward the working position, thereby realizing the feeding of the simulated material 5. The above process does not require an additional cylinder to control the opening and closing of the clamping frame 42. It can be achieved only by the intermittent mechanical coupling between the rotary drive component 61, the driving gear 62 and the driven gear 63, and the cooperation relationship between the second connecting rod 66, the third connecting rod 68 and the second shaft 67.

[0043] Understandably, since the second link 66 and the third link 68 are both connected to the same second shaft 67, the synchronization and phase of the clamping frame 42 and the mounting frame 41 are ensured, so that the opening and closing timing of the clamping frame 42 matches the movement timing of the mounting frame 41, avoiding situations where the clamping starts before it is clamped or the reset is before it is released, thus improving reliability.

[0044] like Figure 6 and Figure 7 As shown, the mounting frame 41 has a feeding groove 411 extending along the second direction, and the clamping frame 42 has a second sliding groove 421 on the side facing the third connecting rod 68. The other end of the third connecting rod 68 is connected to the clamping frame 42 via a third shaft 69, and the third shaft 69 slides in the second sliding groove 421 so that when the mounting frame 41 moves toward the working position, the clamping frame 42 rotates and cooperates with the mounting frame 41 to clamp the simulated material 5 and move it to the working position.

[0045] Based on the above structure, when the driven gear 63 starts to rotate, its rotational motion is converted into a reciprocating oscillating motion at one end of the third link 68, and then the other end of the third link 68 drives the third shaft 69 to move. Since the third shaft 69 is restricted to sliding in the second slide groove 421 of the clamping frame 42, the thrust of the third link 68 not only causes the third shaft 69 to move, but also forces the clamping frame 42 to rotate due to the torque between the third shaft 69 and the clamping frame 42. When the mounting frame 41 moves to the working position, the third link 68 moves synchronously, and the clamping frame 42 rotates under the drive of the third link 68, thereby forming a clamping state with the mounting frame 41, so that the simulated material 5 is firmly clamped and transported to the working position together with the mounting frame 41. In addition, the material holder 42 in this embodiment provides a buffer space for the movement of the third shaft 69 by setting a second slide groove 421, so that when the driving gear 62 and the driven gear 63 just come into contact and mesh, the material holder 42 will not move immediately due to the movement of the third shaft 69, thereby reducing the impact of the sudden movement of the third shaft 69 on the material holder 42.

[0046] like Figure 7 As shown, the material holder 42 includes a material holder block 422 with a second groove 421. The material holder block 422 is rotatably connected to the mounting frame 41, and the side of the material holder block 422 facing the feeding groove 411 has a tooth 4221. The tooth 4221 cooperates with the groove wall of the feeding groove 411 to clamp the simulated material 5.

[0047] Understandably, the simulated material 5 is positioned precisely between the clamping block 422 and the wall of the feeding trough 411. When the third connecting rod 68 drives the clamping block 422 to rotate, the side with the clamping teeth 4221 presses against or moves away from the wall of the feeding trough 411. The clamping teeth 4221 abut against or release the surface of the simulated material 5. When the clamping block 422 presses against the wall of the feeding trough 411, a lateral compression state is formed between the clamping teeth 4221 and the wall of the feeding trough 411 to clamp the simulated material 5. In this embodiment, the clamping teeth 4221 have a serrated or textured structure, which can increase the coefficient of friction between the clamping teeth 4221 and the simulated material 5 to ensure stable clamping of the simulated material 5.

[0048] like Figure 6 and Figure 7 As shown, the material holder 42 also includes an abutment block 423 and a mating block 424. The abutment block 423 is installed on the material holder 422, and the mating block 424 is connected to the abutment block 423. An avoidance opening 425 with an opening facing the feeding groove 411 is formed between the mating block 424 and the abutment block 423 for matching the test end of the material to be tested 3.

[0049] Specifically, in this embodiment, it can be understood that when the simulated material 5 is conveyed to the working position, its end (the part about to be cut off) is in a suspended state. In this embodiment, the end faces of the abutment block 423 and the mating block 424 facing the feeding groove 411 and the inner sidewall of the clearance opening 425 act as mechanical stops, so that under the action of the test material 3, part of the end of the simulated material 5 will be brought into the clearance opening 425, wrapping or tightly fitting the simulated material 5, providing rigid support for the simulated material 5, so as to avoid the simulated material 5 being suspended, which would cause the test material 3 to exert lateral force or impact force on the simulated material 5 at the moment of testing, especially when cutting soft simulated materials, causing the simulated material 5 to bend and making it impossible to complete the cutting action. In addition, the clearance opening 425 can provide clearance space for the test material 3 to avoid collision with the clamping rack 42.

[0050] Furthermore, the mounting bracket 41 has a third slide groove 412 extending along the first direction (e.g., Figure 1 As shown), the material holder 42 can slide along the third slide groove 412 to a preset position and rotate to connect with the mounting frame 41.

[0051] In this embodiment, the third chute 412 can limit the clamping frame 42, preventing it from shifting or jumping during rotation, thus ensuring stable clamping of the simulated material 5 during conveying. Based on the above structure, the operator can move the clamping frame 42 along the third chute 412 towards or away from the feeding trough 411 to adjust the distance between the clamping frame 42 and the feeding trough 411. Once the clamping frame 42 moves to the desired preset position, it is installed so that it can only rotate relative to the third chute 412, accommodating simulated materials 5 of different sizes or materials, thereby improving the versatility and flexibility of the material performance testing drive device.

[0052] In some embodiments, the driving gear 62 can be a sector gear. Alternatively, the driving gear 62 can be a circular gear, with a portion of its circumferential surface provided with effective meshing teeth 622 that mesh with the driven gear 63 (e.g., Figure 4 As shown, along the rotation direction of the driving gear 62, the end where the effective meshing tooth 622 meshes with the driven gear 63 is the starting end 623, and the end where the effective meshing tooth 622 disengages from the driven gear 63 is the disengagement end 624, thereby realizing the intermittent coupling between the driving gear 62 and the driven gear 63.

[0053] The driving gear 62 has a first protective block 625, which is disposed in the non-tooth region 626 between the starting end 623 and the releasing end 624, and is configured close to the starting end 623. The driven gear 63 has a second protective block 631, which is disposed on the non-meshing surface 632 of the driven gear 63. The first protective block 625 can abut against the second protective block 631, causing the driven gear 63 to rotate and mesh with the effective meshing teeth 622. Understandably, the non-tooth region 626 is the portion of the circumferential surface of the driving gear 62 that does not have effective meshing teeth 622, and the non-meshing surface 632 is the end face portion of the driven gear 63. When the driving gear 62 and the driven gear 63 are disengaged, as the driving gear 62 rotates, its first protective block 625 will first touch the second protective block 631 on the driven gear 63. This contact action will force the driven gear 63 to rotate a small angle, thereby ensuring that the subsequent effective meshing teeth 622 and the meshing teeth of the driven gear 63 can smoothly and accurately enter the meshing state.

[0054] Understandably, if the stopping position of the driving gear 62 is random, at startup, the first protective block 625 contacts the second protective block 631 first, causing the driven gear 63 to rotate first. This transforms the potentially rigid impact of hard teeth against hard teeth into contact between the first protective block 625 and the second protective block 631, absorbing some of the impact energy and reducing noise and wear at the moment of meshing between the driving gear 62 and the driven gear 63. This ensures that the relative positions of the driving gear 62 and the driven gear 63 are fixed and predictable at the start of each transmission, improving the repeatability accuracy of the mechanical action.

[0055] like Figure 1 , Figure 2 and Figure 5 As shown, the frame 1 includes a first frame 13, a first slide rail 14, and a second slide rail 15. The first frame 13 has a first slide path 11. The first slide rail 14 and the second slide rail 15 are disposed on the first frame 13. The first slide rail 14 and the second slide rail 15 are disposed opposite to each other along a second direction and are parallel to the first slide path 11. The test frame 2 includes a second frame 21, a first slider 22, a second slider 23, and a third slider 24. The first slider 22, the second slider 23, and the third slider 24 are disposed on the second frame 21. The first slider 22 and the second slider 23 are slidably connected to the first slide rail 14 and the second slide rail 15, respectively. The third slider 24 is slidably connected to the first slide path 11.

[0056] The relative arrangement structure formed by the first slide rail 14 and the second slide rail 15 in this embodiment can improve the stability of the test frame 2 when sliding. In addition, since the first slide rail 14, the second slide rail 15 and the first slide rail 11 are all arranged along the same direction, the test frame 2 can only make linear reciprocating motion along the first direction, which restricts its rotational freedom and ensures that the test frame 2 will not deflect or shake when moving at high speed or under heavy load, so as to avoid deviation in the test results.

[0057] like Figure 5 As shown, the test frame 2 also includes a pressing plate 25, and the second frame 21 has a placement groove 211. The pressing plate 25 covers the placement groove 211 to clamp and fix the material to be tested 3.

[0058] Understandably, when the material to be tested 3 is placed in the placement slot 211, the pressure plate 25 covers it. The pressure plate 25 and the placement slot 211 are connected by screws to fix the material to be tested 3, restricting its up-down, left-right and back-forward movement, thus avoiding test failure caused by the movement of the material to be tested 3 during the sliding of the test frame 2.

[0059] like Figure 1 and Figure 2 As shown, the frame 1 also includes a third slide rail 16 with a second slide rail 12, and the third slide rail 16 is disposed on the first frame 13; the mounting frame 41 includes a third frame 413 with a feeding groove 411 and a fourth slider 414. The third frame 413 is slidably mounted on the third slide rail 16 through the fourth slider 414. In this embodiment, the cooperation of the third slide rail 16 and the fourth slider 414 provides sliding guidance for the third frame 413 and improves the smoothness of sliding.

[0060] Furthermore, it also includes a storage tank 7, which is installed on the frame 1. The storage tank 7 has a storage cavity for placing the simulated material 5 and a discharge port communicating with the storage cavity.

[0061] In this embodiment, the simulated material 5 is placed and stored in the storage tank 7, and the simulated material 5 is led out from the discharge port to the feeding trough 411 to feed the material in coordination with the movement between the clamping frame 42 and the mounting frame 41. There is no need to stop the machine and wait for manual feeding, which improves the smoothness of the test.

[0062] One embodiment of the present invention provides a specific implementation of a testing system for electric hair clippers, comprising a human-machine interface module, a status detection module, a central control module, and a material performance testing drive device as described above; the material to be tested 3 is the clipper blade assembled on the electric hair clipper, the electric hair clipper is placed on the test frame 2, and the clipper blade is arranged parallel to a first direction to ensure that the horizontal linear movement of the electric hair clipper is closer to the actual clipping action in hairdressing; the human-machine interface module is used to set parameters and provide feedback on the status of the testing system, and the human-machine interface module includes a touch screen, buttons, and indicator lights; the status detection module is used to detect the working current and temperature parameters of the electric hair clipper, and the status detection module includes a temperature sensor and a current sensor; the central control module is used to process data and output control commands, and the central control module is a microcontroller (such as a PLC, single-chip microcomputer) or an industrial computer, and the central control module is communicatively connected to the status detection module and the human-machine interface module respectively.

[0063] In this embodiment, the touchscreen serves as the human-machine interface, communicating with the central control module. It is used to set the test frequency (corresponding to motor speed), total test time, and current / temperature alarm thresholds. Buttons control the start and stop of the test system, and indicator lights provide feedback on the system's status; a green light indicates normal operation, while a red light indicates a problem. The central control module drives the motor at a constant or programmable speed via analog output or pulse (PWM) commands, based on the set test frequency. A current sensor is connected in series in the electric clipper's power supply circuit, and a non-contact infrared temperature probe is positioned against the clipper motor housing for real-time signal acquisition. After signal conditioning and filtering, the signal is read from the central control module's analog input port or a dedicated AD conversion circuit. The central control module's internal program continuously monitors these data and compares them with preset thresholds to achieve overcurrent and overheat protection and data recording.

[0064] The testing process in this embodiment begins with the power-on initialization of the equipment. The operator sets the test frequency F (determining the shearing speed), total test time T, and adjusts the feed rate L of the simulated material 5 by adjusting the position of the material clamping block 422 in the third chute 412 via the human-machine interface. After installing the electric hair clipper under test and the simulated hair material (i.e., simulated material 5), the test is started. The central control module commands the motor to run at speed F. The linkage component 6 drives the electric hair clipper and the feeding component 4 to coordinate their actions according to a preset phase relationship, continuously performing simulated shearing. Simultaneously, the central control module synchronously collects the working current I and temperature S of the electric hair clipper in real time. Throughout the test, the program continuously judges whether I and S exceed the safety threshold; if they do, an alarm is immediately triggered and the machine is stopped to protect the electric hair clipper and the testing system. After the test runs for the preset total time T, the controller automatically stops the motor. Finally, the system summarizes the current and temperature data collected throughout the entire test cycle and generates a test report to evaluate the durability and performance stability of the electric hair clipper.

[0065] The specific working process of the material property testing drive device is as follows: like Figures 8 to 12As shown, the rotary drive 61 is activated, causing the drive gear 62 to rotate. The first shaft 65 rotates around the output shaft of the rotary drive 61, causing one end of the first connecting rod 64 to move in a circular motion, thereby moving the test frame 2 towards the working position. Simultaneously, since the drive gear 62 meshes with the driven gear 63, when the driven gear 63 rotates, the second shaft 67 will move in a circular motion around the axis of the driven gear 63, simultaneously causing one end of the second connecting rod 66 and one end of the third connecting rod 68 connected to it to move in a circular motion. Furthermore, the second connecting rod 66 will push the mounting frame 41 along... The second slide 12 moves downward, and the other end of the third link 68 drives the third shaft 69 to move. Since the third shaft 69 is restricted to slide in the second slide groove 421 of the clamping frame 42, the thrust of the third link 68 will not only cause the third shaft 69 to move, but also force the clamping frame 42 to rotate due to the torque between the third shaft 69 and the clamping frame 42. The side with the clamping teeth 4221 will press against the wall of the feeding groove 411 and abut against the surface of the simulated material 5, thereby clamping the simulated material 5 and causing the simulated material 5 to move downward with the mounting frame 41. As the driving gear 62 rotates until it disengages from the driven gear 63, the mounting frame 41 moves to the working position and remains stationary. The electric shears continue to move to the working position and cut the simulated material 5. Subsequently, the driving gear 62 moves to engage with the driven gear 63, re-driving the driven gear 63 to rotate. The second shaft 67 then rotates around the axis of rotation of the driven gear 63, simultaneously driving one end of the second connecting rod 66 and one end of the third connecting rod 68 connected to it to rotate. Consequently, the second connecting rod 66 pushes the mounting frame 41 along the second slide rail 1. 2. Moving upwards, the other end of the third link 68 drives the third shaft 69 to move, and drives the clamping frame 42 to rotate away from the wall of the feeding trough 411 and release the simulated material 5. At this time, the simulated material 5 is in a stationary state. When it moves to its starting position with the mounting frame 41, the third link 68 drives the clamping frame 42 to rotate. The side with the clamping teeth 4221 will press against the wall of the feeding trough 411 and abut against the surface of the simulated material 5, thereby clamping the simulated material 5 and driving the simulated material 5 to move downwards with the mounting frame 41. This reciprocating motion simulates haircutting.

[0066] In this embodiment, the simulated material 5 is a fiber bundle, which better simulates the resistance of real hair clusters than cutting a single cotton thread. Simultaneously, the rotary drive component 61 is directly driven by a motor, combined with a high-rigidity crank-slider mechanism, easily achieving high-frequency reciprocating motion of tens to hundreds of times per minute. This improves testing efficiency by more than an order of magnitude compared to cylinder-driven methods (5-6 times / minute), thus simultaneously simulating the real load during high-frequency testing and solving the problem of ineffective no-load testing. Furthermore, the entire testing system completely eliminates pneumatic components, consisting only of standard mechanical parts such as motors, gears, connecting rods, and sliders, offering advantages such as compact structure, high reliability, low noise, and simple maintenance. Understandably, the load of the testing system in this embodiment can be approximated by selecting fiber bundles of different materials / diameters and adjusting the feed speed to simulate different hairdressing scenarios.

[0067] In summary, the embodiments of the present invention provide a material performance testing drive device and testing system, which realizes intermittent mechanical coupling between a single drive source and a gear transmission structure in either a meshing or disengaging state, so as to convert rotational motion into higher frequency linear testing action. Furthermore, the test frame 2 and the feeding assembly are driven by the same rotary drive component 61, which enables coordinated and synchronous control of the movement of the test material 3 and the feeding of the simulated material 5. This allows the test material 3 and the simulated material 5 to maintain the initial synchronization and phase relationship after multiple cycle tests, thereby keeping the test angle and test speed of the test material 3 and the simulated material 5 stable throughout the entire testing process, thereby reducing test variables and improving test accuracy.

[0068] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A material property testing driving device, comprising a first direction and a second direction intersecting each other, characterized in that, include: The frame has a first slide rail extending in a first direction and a second slide rail extending in a second direction; The test fixture is used to clamp the material to be tested, and the test fixture is slidably mounted on the first slide rail; A feeding assembly is used to move a simulated material to a working position. The simulated material is used to contact the material to be tested to achieve friction or cutting tests. The feeding assembly is slidably mounted on the second slide rail. The linkage component includes a rotary drive, a drive gear, and a driven gear. The rotary drive is mounted on the frame, and the output shaft of the rotary drive is fixedly connected to the drive gear. The drive gear is drivenly connected to the test frame, and the driven gear is drivenly connected to the feeding component. During one revolution of the driving gear, the driving gear has an engaged state with the driven gear and a disengaged state with the driven gear. When the driving gear is engaged, it can drive the test frame to reciprocate along a first direction, and the feeding assembly can reciprocate along a second direction. The simulated material can be driven to the working position or remain stationary by the feeding assembly. When the driving gear is disengaged, it can drive the test frame to reciprocate along the first direction, and the feeding assembly remains stationary relative to the second slide.

2. The material property testing drive device according to claim 1, characterized in that, The linkage component further includes a first link, one end of which is hinged to the drive gear via a first shaft and the other end is hinged to the test frame. The first shaft is parallel to the output shaft of the rotary drive and has a first eccentricity. The drive gear has a first groove extending radially therein, and the first shaft can slide along the first groove to a preset position and be rotatably connected to the drive gear.

3. The material property testing drive device according to claim 1 or 2, characterized in that, The linkage assembly further includes a second link, one end of which is hinged to the driven gear via a second shaft, and the other end is hinged to the feeding assembly. The second shaft is parallel to the rotating shaft of the driven gear and has a second eccentricity. The rotating shaft is rotatably connected to the housing of the frame or the rotary drive component.

4. The material property testing drive device according to claim 3, characterized in that, The linkage component also includes a third link. The feeding component includes a mounting frame and a clamping frame. The clamping frame is rotatably connected to the mounting frame. The mounting frame is slidably mounted on the second slide rail. The other end of the second link is hinged to the mounting frame. One end of the third link is hinged to the driven gear via the second shaft. The other end of the third link is connected to the clamping frame. The simulated material can be driven to the working position or remain stationary by the clamping frame and the mounting frame.

5. The material property testing drive device according to claim 1, characterized in that, The driving gear has effective teeth that mesh with the driven gear. Along the rotation direction of the driving gear, the end where the effective teeth mesh with the driven gear is the starting end, and the end where the effective teeth disengage from the driven gear is the releasing end. The drive gear has a first protective block, which is disposed in the non-tooth region between the starting end and the releasing end, and the first protective block is configured to be disposed close to the starting end. The driven gear has a second protective block, and the second protective block is disposed on the non-meshing surface of the driven gear. The first protective block can abut against the second protective block and cause the driven gear to rotate and mesh with the effective meshing teeth.

6. The material property testing drive device according to claim 4, characterized in that, The mounting frame has a feeding groove extending along a second direction. The clamping frame has a second sliding groove on the side facing the third connecting rod. The other end of the third connecting rod is connected to the clamping frame via a third shaft, and the third shaft slides in the second sliding groove. When the mounting frame moves toward the working position, the clamping frame rotates and cooperates with the mounting frame to clamp the simulated material and move it to the working position.

7. The material property testing drive device according to claim 6, characterized in that, The material clamping frame includes a material clamping block with the second groove. The material clamping block is rotatably connected to the mounting frame, and the side of the material clamping block facing the feeding groove has clamping teeth. The clamping teeth cooperate with the groove wall of the feeding groove to clamp the simulated material.

8. The material property testing drive device according to claim 7, characterized in that, The material holder also includes an abutment block and a mating block. The abutment block is installed on the material holder, and the mating block is connected to the abutment block. An opening facing the feeding groove is formed between the mating block and the abutment block for fitting the cutting end of the material to be tested.

9. The material property testing drive device according to claim 6, characterized in that, The mounting frame has a third sliding groove extending along the first direction, and the material holder can slide along the third sliding groove to a preset position and be rotatably connected to the mounting frame.

10. The material property testing drive device according to claim 6, characterized in that, The frame includes a first frame, a first slide rail, and a second slide rail. The first frame has a first slide rail. The first slide rail and the second slide rail are disposed on the first frame. The first slide rail and the second slide rail are disposed opposite to each other along the second direction and are parallel to the first slide rail. The test frame includes a second frame, a first slider, a second slider, and a third slider. The first slider, the second slider, and the third slider are disposed on the second frame. The first slider and the second slider are slidably connected to the first slide rail and the second slide rail, respectively, and the third slider is slidably connected to the first slide rail.

11. The material property testing drive device according to claim 10, characterized in that, The test frame also includes a pressing plate, and the second frame has a placement slot. The pressing plate covers the placement slot to clamp and fix the material to be tested.

12. The material property testing drive device according to claim 10, characterized in that, The frame also includes a third slide rail having the second slide rail, the third slide rail being disposed on the first frame; The mounting bracket includes a third frame having the feeding groove and a fourth slider, wherein the third frame is slidably mounted on the third slide rail via the fourth slider.

13. The material property testing drive device according to claim 10, characterized in that, It also includes a storage tank, which is installed on the frame and has a storage cavity for placing the simulated material and a discharge port communicating with the storage cavity.

14. The material property testing drive device according to claim 1, characterized in that, The first direction is perpendicular to the second direction.

15. A testing system, characterized in that, Includes the material property testing drive device as described in claims 1-14.

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