Toughness testing device for scissor head of electric hair cutter

Abstract

The invention discloses a device for testing the toughness of an electric hair cutter head. The device comprises a rotary table, an angle-adjustable jig, an impact mechanism and a visual inspection mechanism, the angle-adjustable jigs are distributed on the conveying mechanism in the circumferential direction and provided with jig tables, and clamps for fixing the tool bits are arranged on the jig tables. The impact mechanism and the visual detection mechanism are sequentially arranged at the top of the conveying mechanism in the conveying direction of the conveying mechanism, stepless adjustment of the blade fixing angle can be achieved through the angle-adjustable jig, the detection requirements of different inclination angles are met, the electric hair cutter blade to be detected is stably clamped on the angle-adjustable jig, and the detection efficiency is improved. The impact mechanism located in the detection chamber applies impact forces with different intensities and frequencies to the blade according to a set detection scheme, various complex stress conditions encountered by the electric hair cutter head in the actual use process are simulated, and the problem that an existing device cannot comprehensively detect the toughness of the cutter head at different inclination angles is solved.

Description

Technical Field

[0001] The invention relates to the technical field of hairdressing tool testing devices, in particular to a device for testing the toughness of an electric clipper head. Background Art

[0002] In modern life, electric clippers are a common hair shaving tool and are widely used because of their convenience and efficiency. The cutter head system of an electric clipper consists of a fixed cutter head and a movable cutter head. The fixed cutter head is usually made of metal, while the movable cutter head is made of a variety of materials. The fixed cutter head plays a key role in supporting and coordinating the entire cutter head system, and its quality directly affects the performance and service life of the electric clippers. Therefore, comprehensive and strict testing of the fixed cutter head is an important part of improving the quality of the cutter head product and ensuring the overall performance of the electric clippers.

[0003] Toughness testing is a key indicator in the quality inspection of fixed cutter heads. It is mainly used to evaluate the ability of fixed cutter heads to return to their original shape and performance after being subjected to external impact, pressure or other forms of force. Good toughness ensures the reliability and durability of the cutter head in complex use environments. However, there is currently a relative shortage of professional toughness testing equipment for such fixed cutter heads. When using other types of testing equipment for alternative testing, a large number of auxiliary equipment are often required, resulting in a cumbersome and complicated testing process, which not only increases the testing cost and time cost, but also makes it difficult to meet modern efficient and accurate testing needs. This situation urgently requires the industry to develop more professional and efficient fixed cutter head toughness testing equipment to promote the high-quality development of the electric clipper industry.

[0004] In the prior art, for example, a Chinese invention patent application (publication number CN117949154A) discloses a device and method for testing the toughness of an electric clipper head. The toughness testing device includes a conveying mechanism, on which a clamping mechanism is installed. The conveying mechanism is used to convey the clamping mechanism through a loading station, an A collection station, a testing station, a B collection station and an unloading station in sequence; a shooting and collecting component is arranged in the A collection station and the B collection station, and the shooting and collecting component is used to shoot and collect the shape data of the cutter head; a testing component is arranged in the testing station, and the testing component is used to apply a force to the cutter head. The present invention can realize automatic testing and processing of electric clipper heads.

[0005] In the toughness test device, a structure in which a fixed clamp block and a movable clamp block cooperate with each other is used to clamp the cutter head. Its working principle is based on the relative movement of the mechanical structure. The movable clamp block moves closer to or away from the fixed clamp block, and the clamping force between the two is used to fix the cutter head. However, this clamping structure has significant limitations: on the one hand, its clamping direction is limited to the horizontal direction. This single-direction clamping method greatly limits the diversity of the cutter head's posture during the detection process; on the other hand, when an impact load is applied to the cutter head to simulate the force conditions in actual use, the clamping force provided by the fixed clamp block and the movable clamp block may cause the cutter head to be disengaged from the clamp. This is because the instantaneous dynamic force generated during the impact process may exceed the static friction between the clamp block and the cutter head, causing the cutter head to displace and disengage from the clamp at the moment of force. At the same time, the cutter head remains horizontal throughout the entire detection process, which makes it impossible for the device to effectively detect the toughness of the cutter head in an inclined state. In actual application scenarios, the direction of the external force borne by the electric hair clipper head is complex and changeable, and the situation of tilted force is very common. Therefore, it is impossible to detect the toughness of the cutter head in a tilted state, making it difficult for the test results to fully and accurately reflect the performance of the cutter head in a real usage environment, which in turn affects the comprehensive evaluation of the cutter head quality and the optimization and improvement of the product. Summary of the invention

[0006] In view of the problems existing in the prior art, a device for testing the toughness of an electric clipper head is provided. Through an angle-adjustable fixture, the fixed angle of the blade can be adjusted steplessly to meet the detection requirements of different inclination angles. In the detection operation process, the electric clipper blade to be tested is firmly clamped on the angle-adjustable fixture. When the detection is started, the impact mechanism located in the detection chamber applies impact forces of different intensities and frequencies to the blade according to an established detection scheme, simulating various complex stress conditions encountered by the electric clipper head during actual use, thereby solving the problem that the existing device cannot comprehensively detect the toughness of the blade head at different inclination angles.

[0007] In order to solve the problems of the prior art, the present invention provides a device for testing the toughness of an electric hair clipper head, comprising a turntable, an angle-adjustable jig, an impact mechanism and a visual inspection mechanism; the angle-adjustable jig is distributed on the turntable along the circumferential direction, the angle-adjustable jig has a jig table that can be tilted upward relative to the horizontal direction, and a clamp for fixing the cutter head is arranged on the jig table; the impact mechanism and the visual inspection mechanism are arranged on the top of the turntable in sequence along the conveying direction of the turntable, when the cutter head moves to the bottom of the impact mechanism, it is tilted and the cutting edge of the cutter head is impacted by the impact mechanism, and when the cutter head moves from the bottom of the impact mechanism to the bottom of the visual inspection mechanism, the posture of the cutter head is reset to the horizontal; the angle-adjustable jig also includes a jig frame arranged on the turntable, one side of the jig table is rotatably connected to the jig frame, a tilt drive component that can drive the jig table to tilt is also arranged in the jig frame, and a tilt trigger component for triggering the tilt drive component is arranged on the side of the turntable close to the impact mechanism.

[0008] Preferably, the tilt drive assembly includes a sliding seat slidably arranged in the jig frame, a transmission connecting rod is arranged between the sliding seat and the jig table, and an upper push rod is arranged on the sliding seat and penetrates the jig frame along its radial direction. When the angle-adjustable jig moves to the top of the impact mechanism, the upper push rod is driven by the tilt trigger assembly and guides the sliding seat to move.

[0009] Preferably, an elastic reset element is provided between the sliding seat and the jig frame. When the sliding seat moves to adjust the angle of the jig table, the elastic force of the elastic reset element needs to be overcome. When the sliding seat is in the initial position, the jig table maintains a horizontal posture.

[0010] Preferably, the tilt trigger assembly comprises an upper arc-shaped plate, and the upper ejector rod slides on the arc surface of the upper arc-shaped plate when rotating along the circumferential direction of the turntable to adjust the position of the sliding seat in the fixture frame.

[0011] Preferably, the tilt trigger assembly further comprises a spacing adjustment member arranged on one side of the turntable and close to the punch mechanism, the spacing adjustment member having an adjustment portion capable of moving radially along the turntable, and the upper arc plate is arranged on the adjustment portion.

[0012] Preferably, the fixture includes two clamping blocks that are arranged on the top of the jig table and can move toward each other. The jig frame is provided with a clamping drive component that can drive the two clamping blocks to clamp the blade. A clamping trigger component is provided on the outer side of the turntable near the punch mechanism. When the clamping drive component is linked with the clamping trigger component, the two clamping blocks clamp the blade.

[0013] Preferably, the clamping drive component includes a double-rod cylinder arranged at the bottom of the jig table and a single-rod cylinder arranged in the jig frame, the output rod of the double-rod cylinder is connected to the two clamping blocks, the oil chamber of the single-rod cylinder is connected to the oil chamber of the double-rod cylinder, the output rod of the single-rod cylinder passes through the frame and extends radially along the turntable; the clamping trigger component includes a lower arc plate, and when the output shaft of the single-rod cylinder moves on the arc surface of the lower arc plate, the single-rod cylinder drives the output rod of the double-rod cylinder to drive the two clamping blocks to move toward each other.

[0014] Preferably, the top ends of the two clamping blocks on opposite sides are provided with limiting edges, and the distance between the limiting edges and the fixture table is greater than the thickness of the blade.

[0015] Preferably, a positioning bolt is provided on the limiting edge and penetrates the limiting edge along its thickness direction, and the positioning bolt is threadedly connected to the limiting edge.

[0016] Compared with the prior art, the present invention has the following beneficial effects: This application can achieve stepless adjustment of the fixed angle of the blade through an angle-adjustable fixture to meet the detection requirements of different inclination angles. In the detection process, the electric hair clipper blade to be tested is firmly clamped on the angle-adjustable fixture. When the test is started, the impact mechanism located in the test room applies impact forces of different intensities and frequencies to the blade according to the established test plan, simulating various complex force conditions encountered by the electric hair clipper head during actual use.

[0017] At the same time, the visual inspection agency is involved in the work. The agency is equipped with high-resolution industrial cameras and professional-grade image acquisition and processing systems, which can record the deformation of the blade after impact. With the help of advanced digital image processing algorithms, such as edge feature extraction, contour recognition, and deformation quantitative analysis, the toughness change parameters of the blade under impact at different tilt angles are accurately obtained, thereby achieving a multi-dimensional and high-precision evaluation of the toughness of the cutter head.

[0018] In summary, this innovative detection device, through the integration of ingenious structural design and advanced detection technology, effectively breaks through the bottleneck that traditional electric clipper head toughness testing devices can only perform detection at a single angle or under limited conditions, and successfully solves the problem that existing devices cannot comprehensively detect the toughness of the cutter head at different inclination angles. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a stereoscopic diagram of a device for testing the toughness of an electric hair clipper head according to the present invention.

[0020] Figure 2 It is a top view of a device for testing the toughness of an electric hair clipper head according to the present invention.

[0021] Figure 3It is a stereoscopic view of an angle-adjustable fixture in a device for testing the toughness of an electric hair clipper head of the present invention at a first viewing angle.

[0022] Figure 4 It is a stereoscopic view of an angle-adjustable fixture in a device for testing the toughness of an electric hair clipper head under a second viewing angle of the present invention.

[0023] Figure 5 The present invention is a schematic diagram of the internal structure of a fixture frame in a device for testing the toughness of an electric hair clipper head.

[0024] Figure 6 The present invention is a front view of a clamping drive member in a device for testing the toughness of an electric hair clipper head.

[0025] Figure 7 It is a stereoscopic diagram of a clamping drive member in a device for testing the toughness of an electric hair clipper head according to the present invention.

[0026] Figure 8 The present invention is a schematic diagram of the internal structure of a double-rod oil cylinder and a single-rod oil cylinder in a device for testing the toughness of an electric hair clipper head.

[0027] Fig. 9 It is a three-dimensional diagram of a fixture table in a device for testing the toughness of an electric hair clipper head of the present invention.

[0028] Fig.10 The present invention discloses a stereoscopic exploded view of a fixture table in a device for testing the toughness of an electric hair clipper head.

[0029] The numbers in the figure are: 1. turntable; 2. angle-adjustable fixture; 21. fixture table; 22. fixture; 221. clamping block; 2211. limit edge; 2212. positioning bolt; 2221. double-rod cylinder; 2222. single-rod cylinder; 2223. spring; 2231. lower arc plate; 23. fixture frame; 241. sliding seat; 242. transmission connecting rod; 243. upper push rod; 244. elastic reset element; 251. upper arc plate; 2521. fixing frame; 2522. light rod; 2523. screw rod; 3. impact mechanism; 4. visual inspection mechanism; 5. tool head. DETAILED DESCRIPTION

[0030] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0031] like Figure 1 , Figure 2 and Figure 3As shown, a device for testing the toughness of an electric hair clipper head 5 comprises a turntable 1, an angle-adjustable jig 2, an impact mechanism 3 and a visual inspection mechanism 4; the angle-adjustable jig 2 is distributed on the turntable 1 along the circumferential direction, the angle-adjustable jig 2 has a jig table 21 that can be tilted upward relative to the horizontal direction, and a clamp 22 for fixing the cutter head 5 is arranged on the jig table 21; the impact mechanism 3 and the visual inspection mechanism 4 are sequentially arranged on the top of the turntable 1 along the conveying direction of the turntable 1, when the cutter head 5 moves to the bottom of the impact mechanism 3, it is tilted and the cutting edge of the cutter head 5 is impacted by the impact mechanism 3, and when the cutter head 5 moves from the bottom of the impact mechanism 3 to the bottom of the visual inspection mechanism 4, the posture of the cutter head 5 is reset to the horizontal.

[0032] The fixture table 21 can be adjusted to tilt upward relative to the horizontal direction. This design allows the cutter head 5 to simulate the force angles in various actual use scenarios during the detection process. The fixture table 21 is equipped with a clamp 22 specifically used to fix the cutter head 5. When the cutter head 5 is supported by the fixture table 21, it can ensure that the cutter head 5 is firmly clamped during the detection process to avoid displacement or falling off due to external force impact, thereby ensuring the accuracy and reliability of the detection results.

[0033] The impact mechanism 3 and the visual inspection mechanism 4 are sequentially arranged on the top of the turntable 1 along the conveying direction of the turntable 1. When the cutter head 5 moves with the turntable 1 to the bottom of the impact mechanism 3, the angle-adjustable fixture 2 adjusts the cutter head 5 to a specific tilt angle according to a preset program. At this time, the impact mechanism 3 applies impact forces of different intensities and frequencies to the cutting edge of the cutter head 5 according to the established detection scheme, simulating the various complex external forces that the electric hair clipper head 5 is subjected to during actual use. After the impact is completed, the cutter head 5 continues to move with the turntable 1. When it reaches the bottom of the visual inspection mechanism 4, the angle-adjustable fixture 2 resets the posture of the cutter head 5 to a horizontal state. The visual inspection mechanism 4 is equipped with a high-resolution industrial camera and a professional-grade image acquisition and processing system, which can perform all-round and high-precision shooting and recording of the state of the cutter head 5 after the impact.

[0034] A groove is provided on the jig table 21, and the setting of the groove plays a key role in the entire toughness test process of the cutter head 5. During the test, the cutting edge of the cutter head 5 will be impacted by a specific external force to simulate the stress conditions in actual use. Since the cutting edge of the cutter head 5 is located at the top of the groove, the groove provides the necessary space for the cutting edge to deform downward. When the cutting edge is subjected to external force, it can be deformed in a preset direction and manner, avoiding insufficient deformation or abnormal deformation direction due to obstruction of the surrounding structure. In this way, the deformation data of the cutter head 5 collected during the test can truly and accurately reflect the toughness performance of the cutter head 5, and provide a scientific and reliable basis for the evaluation and improvement of the quality of the cutter head 5. At the same time, the design of the groove also helps to protect the jig table 21 itself, reduce the damage to the jig table 21 caused by the deformation of the cutter head 5, and extend the service life of the jig table 21.

[0035] like Figure 3 and Figure 4 As shown, the angle-adjustable jig 2 also includes a jig frame 23 disposed on the turntable 1, one side of the jig table 21 is rotatably connected to the jig frame 23, and a tilt drive component capable of driving the jig table 21 to tilt is also disposed in the jig frame 23, and a tilt trigger component for triggering the tilt drive component is disposed on one side of the turntable 1 close to the impact mechanism 3.

[0036] One side of the jig table 21 is rotatably connected to the jig frame 23 via a high-precision rotating shaft. This rotatable connection method not only ensures the flexibility of the jig table 21 during the rotation process, but also enables the jig table 21 to be accurately positioned when adjusting the tilt angle.

[0037] When the turntable 1 drives the angle-adjustable jig 2 and the cutter head 5 fixed thereon to move to the bottom of the impact mechanism 3, the tilt trigger assembly guides and drives the jig table 21 to tilt, so that the cutter head 5 reaches a preset tilt angle, so as to receive the impact detection of the impact mechanism 3. This precise trigger mechanism ensures that the cutter head 5 can be accurately adjusted to the required tilt angle when entering the impact detection area, thereby improving the accuracy and reliability of the detection.

[0038] like Figure 3 and Figure 4 As shown, the tilt drive assembly includes a sliding seat 241 slidably set in the jig frame 23, a transmission connecting rod 242 is set between the sliding seat 241 and the jig table 21, and an upper push rod 243 is set on the sliding seat 241 and penetrates the jig frame 23 along its radial direction. When the angle-adjustable jig 2 moves to the top of the impact mechanism 3, the upper push rod 243 is driven by the tilt trigger assembly and guides the sliding seat 241 to move.

[0039] The sliding seat 241 and the jig table 21 are mechanically connected via a transmission link 242, and the sliding seat 241 and the jig table 21 are movably connected via hinges at both ends of the transmission link 242. This connection method can effectively transmit the linear motion of the sliding seat 241 and convert it into the rotation of the jig table 21, thereby realizing the tilting action of the jig table 21.

[0040] On the sliding seat 241, an upper push rod 243 is provided which penetrates the fixture frame 23 in its radial direction. One end of the upper push rod 243 is tightly fixed to the sliding seat 241, and the other end serves as a trigger execution end, which is responsible for receiving an external trigger signal and pushing the sliding seat 241 to move.

[0041] When the angle-adjustable jig 2 moves with the turntable 1 to the specific detection area at the top of the impact mechanism 3, the tilt trigger assembly installed on the turntable 1 near the impact mechanism 3 starts to work. Under the driving force of the tilt trigger assembly, the upper push rod 243 guides the sliding seat 241 to move linearly along the guide rail in the jig frame 23. The movement of the sliding seat 241 drives the jig table 21 to rotate around the rotation connection point between it and the jig frame 23 through the transmission connecting rod 242, thereby realizing the tilt of the jig table 21, so that the cutter head 5 fixed on the jig table 21 reaches a preset tilt angle, and prepares for the impact mechanism 3 to perform impact detection on the cutter head 5 at different angles.

[0042] like Figure 5 , Figure 6 and Figure 7 As shown, an elastic reset element 244 is provided between the sliding seat 241 and the fixture frame 23. When the sliding seat 241 moves to adjust the angle of the fixture table 21, the elastic force of the elastic reset element 244 needs to be overcome. When the sliding seat 241 is in the initial position, the fixture table 21 maintains a horizontal posture.

[0043] When the tilt drive assembly is working, the sliding seat 241 moves under the action of the external driving force to adjust the angle of the jig table 21, and it is necessary to overcome the elastic force generated by the elastic reset element 244. The elastic force of the elastic reset element 244 is linearly related to the displacement of the sliding seat 241 and follows Hooke's law. During the movement of the sliding seat 241, as the displacement increases, the elastic force of the elastic reset element 244 also increases accordingly, providing a stable reverse force for the angle adjustment of the jig table 21. This reverse force can not only keep the jig table 21 stable during the adjustment process and avoid the angle loss caused by sudden changes in external force, but also quickly restore the sliding seat 241 and the jig table 21 to their initial state after the external driving force disappears.

[0044] When the sliding seat 241 is in the initial position, the elastic reset element 244 is in a natural extension or compression state, and the jig table 21 maintains a horizontal posture. The setting of this initial state provides a standard starting position for the detection of the electric hair clipper head 5, ensuring the consistency and accuracy of each detection. In the detection process, when the cutter head 5 completes the impact detection, the angle-adjustable jig 2 needs to return to the initial state for the next detection. At this time, the elastic reset element 244 releases the stored elastic potential energy, driving the sliding seat 241 to quickly return to the initial position, so that the jig table 21 is restored to the horizontal state and is ready for the next round of detection. The entire process realizes the automatic reset function of the angle adjustment of the jig table 21 through the ingenious design and mechanical properties of the elastic reset element 244.

[0045] like Figure 4 and Figure 5 As shown, the tilt trigger assembly includes an upper arc plate 251 , and the upper push rod 243 slides on the arc surface of the upper arc plate 251 when rotating along the circumferential direction of the turntable 1 to adjust the position of the sliding seat 241 in the fixture frame 23 .

[0046] The upper ejector rod 243 serves as an actuator and rotates along the circumference of the turntable 1. During the uniform rotation of the turntable 1, the end of the upper ejector rod 243 maintains continuous contact with the arc surface of the upper arc plate 251. The arc profile design of the upper arc plate 251 is based on specific kinematic and mechanical principles. Its curvature matches the motion trajectory of the upper ejector rod 243, and the height change of the arc surface corresponds to the different target positions of the sliding seat 241 in the fixture frame 23. When the turntable 1 drives the angle-adjustable fixture 2 and the upper ejector rod 243 to rotate synchronously, the upper ejector rod 243 slides along the arc surface of the upper arc plate 251. Since the height of the arc surface of the upper arc plate 251 changes regularly, the upper ejector rod 243 is subjected to the radial force of the arc surface during the sliding process. The component of this force in the horizontal direction pushes the upper ejector rod 243 to produce displacement, thereby driving the sliding seat 241 connected thereto to perform linear motion in the fixture frame 23. Through this ingenious mechanical structure design, the circular motion of the turntable 1 is converted into the linear motion of the sliding seat 241, so that the position of the sliding seat 241 in the fixture frame 23 can be accurately adjusted. The change in the position of the sliding seat 241 can accurately adjust the inclination angle of the fixture table 21 through the action of the transmission connecting rod 242, so that the electric clipper head 5 fixed on the fixture table 21 reaches the preset detection angle.

[0047] like Figure 3 As shown, the tilt trigger assembly also includes a spacing adjustment member arranged on one side of the turntable 1 and close to the punch mechanism. The spacing adjustment member has an adjustment portion that can move radially along the turntable 1, and the upper arc plate 251 is arranged on the adjustment portion.

[0048] The spacing adjustment member includes a fixing frame 2521 arranged on the outside of the turntable 1, a light rod 2522 slides through the fixing frame 2521, one end of the light rod 2522 is fixedly connected to the upper arc plate 251, a screw rod 2523 penetrates the fixing frame 2521 and is threadedly connected thereto, and one end of the screw rod 2523 is rotatably connected to the upper arc plate 251.

[0049] The fixing frame 2521 is installed on the outside of the turntable 1 to provide a stable support foundation for the entire adjustment structure. The light rod 2522 penetrates the fixing frame 2521 in a sliding manner, and one end of the light rod 2522 is rigidly fixedly connected to the upper arc plate 251. During the adjustment process, the light rod 2522 can provide precise guidance for the movement of the upper arc plate 251, ensuring that the upper arc plate 251 always moves smoothly along the radial direction of the turntable 1 to avoid deviation or shaking.

[0050] The screw rod 2523 also passes through the fixed frame 2521 and is connected to the fixed frame 2521 by a thread. This thread connection method gives the screw rod 2523 the ability to accurately control displacement. One end of the screw rod 2523 is connected to the upper arc plate 251 by rotation, which not only ensures that the screw rod 2523 can smoothly drive the upper arc plate 251 to move when rotating, but also avoids unnecessary torque effects on the upper arc plate 251 caused by the rotation of the screw rod 2523. When the operator rotates the screw rod 2523, due to the threaded transmission relationship between the screw rod 2523 and the fixed frame 2521, the rotational motion of the screw rod 2523 is converted into linear motion, thereby pushing the upper arc plate 251 to move in the radial direction of the turntable 1 along the guide direction of the light rod 2522.

[0051] The change of the position of the upper arc plate 251 directly affects the sliding stroke of the upper push rod 243. As the distance between the upper arc plate 251 and the axis of the turntable 1 changes, the sliding path and stroke of the upper push rod 243 on the arc surface of the arc plate also change accordingly when the upper push rod 243 rotates circumferentially along the turntable 1. The change of this sliding stroke, through the linkage relationship between the upper push rod 243 and the sliding seat 241, ultimately achieves precise adjustment of the inclination angle of the fixture table 21. This design of adjusting the inclination angle of the fixture table 21 by adjusting the distance between the upper arc plate 251 and the axis of the turntable 1 greatly enhances the flexibility and adaptability of the tilt trigger component, can meet the requirements of different models of electric hair clipper heads 5 for diversified inclination angles during toughness testing, and significantly improves the detection accuracy and application range of the toughness testing device of the electric hair clipper head 5.

[0052] like Figure 7-10 As shown, the fixture 22 includes two clamping blocks 221 which are arranged on the top of the fixture table 21 and can move toward each other. The fixture frame 23 is provided with a clamping drive component which can drive the two clamping blocks 221 to clamp the blade. The turntable 1 is provided with a clamping trigger component on the outer side near the punch mechanism. When the clamping drive component is linked with the clamping trigger component, the two clamping blocks 221 clamp the blade 5.

[0053] A clamping trigger is provided on the outer side of the turntable 1 near the punch mechanism. When the turntable 1 drives the angle-adjustable jig 2 and the clamp 22 to move close to the punch mechanism to clamp the drive assembly. Upon receiving the command from the clamping trigger, the clamping drive immediately starts and drives the two clamping blocks 221 to move toward each other, thereby achieving the clamping action of the tool head 5.

[0054] like Figure 8 As shown, the clamping drive component includes a double-rod cylinder 2221 arranged at the bottom of the jig table 21 and a single-rod cylinder 2222 arranged in the jig frame 23, the output rod of the double-rod cylinder 2221 is connected to the two clamping blocks 221, the oil chamber of the single-rod cylinder 2222 is connected to the oil chamber of the double-rod cylinder 2221, the output rod of the single-rod cylinder 2222 passes through the frame and extends radially along the turntable 1; the clamping trigger component includes a lower arc plate 2231, when the output shaft of the single-rod cylinder 2222 moves on the arc surface of the lower arc plate 2231, the single-rod cylinder 2222 drives the output rod of the double-rod cylinder 2221 to drive the two clamping blocks 221 to move toward each other.

[0055] A spring 2223 is provided in another chamber of the single-rod oil cylinder 2222 relative to the oil chamber, so as to realize automatic reset of the output rod of the single-rod oil cylinder 2222 when there is no acting force.

[0056] The double-rod oil cylinder 2221 is installed at the bottom of the fixture table 21, and its output rod is rigidly connected to the two clamping blocks 221 through high-precision connectors, which can provide stable and powerful power for the clamping blocks 221 to move toward each other. The single-rod oil cylinder 2222 is set inside the fixture frame 23, and its oil chamber is connected to the oil chamber of the double-rod oil cylinder 2221 through a high-pressure oil pipe to form a hydraulic linkage system. The cutter head 5 is fixed without affecting the tilt angle of the fixture table 21. The output rod of the single-rod oil cylinder 2222 passes through the frame and extends along the radial direction of the turntable 1 so as to effectively interact with the external trigger structure.

[0057] When the turntable 1 drives the jig frame 23 and related components to perform circular motion, the output rod of the single-rod cylinder 2222 moves radially along the turntable 1 and maintains continuous contact with the arc surface of the lower arc plate 2231 .

[0058] When the output rod of the single-rod cylinder 2222 abuts against the arc surface of the lower arc plate 2231, due to the special curved surface design of the lower arc plate 2231, the output rod will be subjected to a radial component force along the turntable 1 during the movement along the arc surface. This component force pushes the output rod of the single-rod cylinder 2222 to retract into the cylinder, thereby changing the volume of the oil chamber of the single-rod cylinder 2222. Based on the communicating vessel principle and the working characteristics of the hydraulic system, the single-rod cylinder 2222 will extract the hydraulic oil in the oil chamber of the double-rod cylinder 2221, causing the internal pressure of the double-rod cylinder 2221 to change. Under the action of the pressure difference, the two output rods of the double-rod cylinder 2221 move toward each other, and through the connection with the clamping block 221, the two clamping blocks 221 are driven to move toward each other rapidly, thereby achieving a stable clamping of the cutter head 5.

[0059] In order to ensure that the output rod of the single-rod oil cylinder 2222 can automatically reset when there is no external force, a spring 2223 is provided in another chamber of the single-rod oil cylinder 2222 relative to the oil chamber. After the external force on the output rod disappears, the stored elastic potential energy can be quickly released to push the output rod back to the initial position. At this time, the hydraulic balance between the single-rod oil cylinder 2222 and the double-rod oil cylinder 2221 is restored, and the clamping block 221 is released, ready for the next clamping of the cutter head 5.

[0060] like Fig. 9 As shown, the top ends of the two clamping blocks 221 on opposite sides are provided with limiting edges 2211 , and the distance between the limiting edges 2211 and the fixture table 21 is greater than the thickness of the blade.

[0061] like Fig. 9 As shown, a positioning bolt 2212 is provided on the limiting edge 2211 and penetrates the limiting edge 2211 along its thickness direction, and the positioning bolt 2212 is threadedly connected to the limiting edge 2211.

[0062] By rotating the positioning bolt 2212 and adjusting the distance between the bottom end of the positioning bolt 2212 and the clamp 22, after the two clamps 221 move toward each other, the bottom end of the positioning bolt 2212 intermittently cooperates with the top end of the blade to limit the cutter head 5 and prevent the cutter head 5 from shaking when impacted.

[0063] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the protection scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A device for testing the toughness of electric clipper heads, characterized in that: It includes a rotating table, an angle-adjustable fixture, an impact mechanism and a visual inspection mechanism; The angle-adjustable jig is distributed on the rotary table along the circumferential direction, and the angle-adjustable jig has a jig table that can be tilted upward relative to the horizontal direction, and a fixture for fixing the tool head is arranged on the jig table; The impact mechanism and the visual inspection mechanism are sequentially arranged on the top of the turntable along the conveying direction of the turntable. When the cutter head moves to the bottom of the impact mechanism, it is tilted and the impact mechanism impacts the cutting edge of the cutter head. When the cutter head moves from the bottom of the impact mechanism to the bottom of the visual inspection mechanism, the attitude of the cutter head is reset to the horizontal. The angle-adjustable jig also includes a jig frame arranged on a turntable, one side of the jig table is rotatably connected to the jig frame, a tilt drive component capable of driving the jig table to tilt is also arranged in the jig frame, and a tilt trigger component for triggering the tilt drive component is arranged on one side of the turntable close to the impact mechanism.

2. The electric hair clipper head toughness testing device according to claim 1, characterized in that: The tilt drive assembly includes a sliding seat slidably arranged in the jig frame, a transmission connecting rod is arranged between the sliding seat and the jig table, and an upper push rod is arranged on the sliding seat and penetrates the jig frame along its radial direction. When the angle-adjustable jig moves to the top of the impact mechanism, the upper push rod is driven by the tilt trigger assembly and guides the sliding seat to move.

3. The electric hair clipper head toughness testing device according to claim 2, characterized in that: An elastic reset element is arranged between the sliding seat and the fixture frame. When the sliding seat moves to adjust the angle of the fixture table, the elastic force of the elastic reset element needs to be overcome. When the sliding seat is in the initial position, the fixture table maintains a horizontal posture.

4. The electric hair clipper head toughness testing device according to claim 1 or 2, characterized in that: The tilt trigger assembly comprises an upper arc plate, and the upper ejector rod slides on the arc surface of the upper arc plate when rotating along the circumference of the turntable to adjust the position of the sliding seat in the fixture frame.

5. The electric hair clipper head toughness testing device according to claim 4, characterized in that: The tilt trigger assembly also includes a spacing adjustment member arranged on one side of the turntable and close to the punch mechanism. The spacing adjustment member has an adjustment portion that can move radially along the turntable, and the upper arc plate is arranged on the adjustment portion.

6. A device for testing the toughness of electric clipper heads according to any one of claims 1 to 3, characterized in that: The fixture includes two clamping blocks that are arranged on the top of the fixture table and can move toward each other. The fixture frame is provided with a clamping drive component that can drive the two clamping blocks to clamp the blade. A clamping trigger component is arranged on the outer side of the turntable near the punch mechanism. When the clamping drive component and the clamping trigger component are linked, the two clamping blocks clamp the blade.

7. The electric hair clipper head toughness testing device according to claim 6, characterized in that: The clamping driving component includes a double-rod cylinder arranged at the bottom of the jig table and a single-rod cylinder arranged in the jig frame, the output rod of the double-rod cylinder is connected to the two clamping blocks, the oil chamber of the single-rod cylinder is connected to the oil chamber of the double-rod cylinder, the output rod of the single-rod cylinder penetrates the frame and extends radially along the turntable; the clamping trigger component includes a lower arc plate, when the output shaft of the single-rod cylinder moves on the arc surface of the lower arc plate, the single-rod cylinder drives the output rod of the double-rod cylinder to drive the two clamping blocks to move toward each other.

8. The electric hair clipper head toughness testing device according to claim 6, characterized in that: The top ends of the two clamping blocks on opposite sides are provided with limiting edges, and the distance between the limiting edges and the fixture table is greater than the thickness of the blade.

9. The electric hair clipper head toughness testing device according to claim 8, characterized in that: The limiting edge is provided with a positioning bolt which penetrates the limiting edge along the thickness direction thereof, and the positioning bolt is threadedly connected with the limiting edge.

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