Device for conveniently disassembling and assembling impact blade of pendulum impact testing machine

Abstract

The invention discloses a convenient and fast dismounting and mounting device for an impact blade of a pendulum impact testing machine, the convenient and fast dismounting and mounting device comprises a blade, a cutter bar, a dismounting and mounting assembly, a stabilizing assembly, a shockproof assembly and an alarm assembly, a module is arranged below the cutter bar, the cutter bar is fixedly connected with a mounting ring, and the cutter bar is fixedly connected with the blade through the mounting ring. Through the stabilizing assembly, after an inserting block is inserted into a module, a rotary knob is screwed to enable a protruding part to rotate in a circular groove, at the moment, a ball on a mounting cylinder is attached to the inner wall of the upper portion of the circular groove to roll under the pressure of a spring, and after the ball rolls to a fixing groove, the mounting cylinder and the ball are driven to be inserted into the fixing groove under the resilience force effect of the spring; and the limiting block is clamped and matched with the inner wall of the fixing groove to limit the circumferential rotation position of the lug boss. At the moment, the protruding part cannot continuously rotate in the circular groove, it is ensured that the protruding part and the through groove are always kept in a staggered locking state, and the stability after installation is enhanced.

Description

Technical Field

[0001] This invention relates to the field of pendulum impact testing machine technology, and in particular to a convenient device for disassembling and assembling the impact blade of a pendulum impact testing machine. Background Technology

[0002] The pendulum impact testing machine is a testing device used to determine the impact resistance of metallic materials under dynamic loads. It is widely used in material quality testing in fields such as machinery manufacturing and metallurgy. The impact blade, as the core component of the pendulum impact testing machine that directly impacts the specimen, is crucial to the accuracy of the test data due to its installation accuracy and connection stability.

[0003] In existing technologies, the impact blade assembly and disassembly structures of pendulum impact testing machines are mainly divided into three categories. The first category is a bolt-fastened structure, where the impact blade is fixed to the blade shank by multiple sets of bolts. Disassembly and assembly require the use of specialized tools such as wrenches and screwdrivers to tighten or loosen the bolts sequentially to complete the fixing or removal of the blade. The second category is a welded fixing structure, where the impact blade and blade shank are permanently connected by welding. This structure eliminates the need for disassembly and assembly, as the fusion effect of the welding ensures the connection strength between the blade and the blade shank.

[0004] However, bolt fastening often requires the use of special tools such as wrenches and screwdrivers for disassembly and assembly, which is cumbersome. Under long-term impact and vibration, bolts are prone to loosening or stripping. Although welding can ensure the stability of the connection, it cannot allow for the disassembly and replacement of the impact blade. When the blade is worn or damaged, the entire blade assembly needs to be replaced, which greatly increases the operating cost of the equipment.

[0005] Accordingly, this application proposes a convenient disassembly and assembly device for the impact blade of a pendulum impact testing machine. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a convenient disassembly and assembly device for the impact blade of a pendulum impact testing machine.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A convenient disassembly and assembly device for the impact blade of a pendulum impact testing machine includes a blade, a blade rod, an assembly and disassembly assembly, a stabilizing assembly, a shock-absorbing assembly, and an alarm assembly. A block is provided below the blade rod, and an mounting ring is fixedly connected to the blade rod. The blade rod is fixedly connected to the blade through the mounting ring. The loading / unloading assembly is used to install or remove the cutter bar; The stabilizing component is used to enhance the stability of the tool holder installation; The shock-absorbing components are used to prevent the blade and handle from loosening during impact testing. The alarm component is used to sound an alarm when the tool holder becomes loose.

[0008] Preferably, the loading and unloading assembly includes a plug-in block, a through groove, a plug post, a circular groove, and two protrusions; the plug-in block is provided with slide rails on both sides, the plug-in block is fixedly connected to the bottom of the tool bar, the through groove is provided on the assembly block, and the circular groove is connected to the top of the through groove.

[0009] Preferably, the assembly block and the plug-in block are provided with slits on both sides, the plug-in block is provided with curved surfaces on both sides, the two protrusions are respectively provided on both sides of the upper end of the plug, the plug is inserted into the through groove, and the two protrusions can rotate in the circular groove.

[0010] Preferably, the stabilizing component includes two balls, two mounting cylinders, two slides, two springs, and two fixing grooves; the two slides are respectively provided on the two protrusions, and the two mounting cylinders are respectively slidably connected to the two slides.

[0011] Preferably, the two fixing grooves are respectively provided on the plug-in block, the two balls are respectively movably connected to the two mounting cylinders, one end of the two springs is respectively fixedly connected to the two mounting cylinders, and the other end is respectively fixedly connected to the inner wall of the two sliding grooves, and the mounting cylinders are slidably connected to the fixing grooves.

[0012] Preferably, the shock-absorbing component includes a threaded area, a sleeve, a pressure ring, two connecting blocks, and two rubber blocks; the threaded area is located on the tool holder, the pressure ring is rotatably connected to the sleeve, the two connecting blocks are respectively fixedly connected to the pressure ring, and the two rubber blocks are respectively slidably connected to two sets of slide rails.

[0013] Preferably, the sleeve has a first texture and an internal thread, the pressure ring has a screw set, the pressure ring is fixedly connected to two rubber blocks by the screw set, the rubber blocks are tightly attached to the gap between the plug block and the assembly block, and the sleeve is slidably connected on the threaded area.

[0014] Preferably, the alarm assembly includes two mounting slots, two contact blocks, and two sensors. The two contact blocks are fixedly connected to both sides of the plug block, and the two mounting slots are respectively located on both sides of the assembly.

[0015] Preferably, the two sensors are fixedly installed in two mounting slots respectively, with a gap between the contact block and the sensor.

[0016] Preferably, a knob is rotatably connected to the bottom of the assembly, the knob is fixedly connected to the insert post, the knob is provided with a second texture, one side of the rubber block is an arc surface, and the assembly is used to be fixedly installed on the pendulum shaft of the pendulum impact testing machine.

[0017] The present invention has the following beneficial effects: 1. By installing and removing the assembly, the insert block on the tool holder is inserted into the assembly block, allowing the insert pin to be inserted into the through groove within the insert block. When the protrusion on the insert pin reaches the circular groove, the knob drives the two protrusions to rotate synchronously within the circular groove. At this point, the protrusions leave their aligned position with the through groove and instead form a limiting fit with the inner wall of the circular groove. The rotated protrusions are blocked by the stepped structure of the circular groove and cannot be dislodged along the axial direction of the through groove, thus securing the tool holder firmly to the assembly block. For disassembly, the knob is rotated in the opposite direction, causing the protrusions to rotate back to their initial aligned position with the through groove. At this point, the protrusions are no longer blocked by the stepped structure of the circular groove, and the insert pin can be pulled upwards to dislodge it from the through groove. Then, the insert block can be pulled out of the assembly block, completing the disassembly of the tool holder. This improves the convenience and reliability of the impact blade assembly and disassembly process.

[0018] 2. By stabilizing the components, after the plug-in block is inserted into the assembly, turning the knob causes the protrusion to rotate within the circular groove. At this time, the ball bearings on the mounting cylinder roll against the inner wall of the circular groove under spring pressure. When they reach the fixing groove, the spring's rebound force causes the mounting cylinder and ball bearings to insert into the fixing groove, forming a locking engagement with the inner wall of the fixing groove, thus limiting the circumferential rotation of the protrusion. At this point, the protrusion cannot continue to rotate within the circular groove, ensuring that the protrusion remains in a locked, misaligned state with the through groove, enhancing stability after installation.

[0019] Third, after the plug-in block is inserted into the assembly block through the shock-absorbing component, the sleeve is rotated to slide downward along the threaded area, driving the pressure ring and connecting block to move, so that the rubber block is gradually inserted into the gap between the plug-in block and the assembly block. Through the filling and squeezing of the rubber block, the looseness between the two is eliminated. When the impact test is carried out, the rubber block can absorb the vibration energy through its own elastic deformation, avoiding the loosening of the tool bar in the long-term impact test, and ensuring the stability and accuracy of the test.

[0020] Fourth, through the alarm component, if the tool bar becomes loose, the plug block will shake with the tool bar, thereby driving the contact block closer to the sensor. After the contact block contacts the sensor, the sensor triggers an alarm signal to alarm the alarm system. The gap between the contact block and the sensor can ensure that the sensor will not be falsely triggered when the tool bar is installed normally, ensuring the accuracy of the alarm signal and avoiding impact test failure or equipment damage due to the tool bar being loose and not detected in time, thus improving the safety and reliability of the device. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a convenient disassembly and assembly device for the impact blade of a pendulum impact testing machine proposed in this invention. Figure 2 for Figure 1 Enlarged diagram of point A in the diagram; Figure 3This is an internal sectional view of the impact blade easy disassembly and assembly device block of a pendulum impact testing machine proposed in this invention; Figure 4 This is an internal sectional view of the connector block of the impact blade easy disassembly and assembly device of a pendulum impact testing machine proposed in this invention; Figure 5 This is a transverse sectional view of the connector block of the convenient disassembly and assembly device for the impact blade of a pendulum impact testing machine proposed in this invention. Figure 6 This is an internal sectional view of the insert column of the convenient disassembly and assembly device for the impact blade of a pendulum impact testing machine proposed in this invention. Figure 7 This is an internal view of the protrusion of the convenient disassembly and assembly device for the impact blade of a pendulum impact testing machine proposed in this invention. Figure 8 This invention provides a convenient disassembly and assembly device for the impact blade of a pendulum impact testing machine.

[0022] In the diagram: 1. Blade; 2. Blade holder; 3. Component; 4. Threaded area; 5. Mounting groove; 6. Sleeve; 7. Knob; 8. Pressure ring; 9. Connecting block; 10. Rubber block; 11. Slide rail; 12. Insertion block; 13. Sensor; 14. Contact block; 15. Through groove; 16. Circular groove; 17. Insert post; 18. Protrusion; 19. Mounting cylinder; 20. Ball bearing; 21. Spring; 22. Fixing groove; 23. Slide groove; 24. Mounting ring; 25. Internal thread; 26. Screw assembly; 27. Gap; 28. First groove; 29. ​​Second groove; 30. Curved surface. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0024] Example 1: Reference Figures 1 to 5 and Figure 8 A convenient disassembly and assembly device for the impact blade of a pendulum impact testing machine includes a blade 1, a blade rod 2, an assembly and disassembly assembly, a stabilizing assembly, a shock-absorbing assembly, and an alarm assembly. An mounting ring 24 is fixedly connected to the blade rod 2, and the blade rod 2 is fixedly connected to the blade 1 through the mounting ring 24. A block 3 is provided below the blade rod 2. The loading and unloading assembly is used to install or remove the tool holder 2; The stabilizing component is used to enhance the stability of the tool holder 2 installation; The shock-absorbing components are used to prevent the blade 1 and the blade shank 2 from loosening during impact testing.

[0025] The alarm component is used to trigger an alarm when the tool holder 2 becomes loose.

[0026] The loading and unloading assembly includes a plug-in block 12, a through groove 15, a plug post 17, a circular groove 16, and two protrusions 18. The plug-in block 12 has slide rails 11 on both sides, which provide sliding guidance for other components to ensure accurate movement trajectories. The plug-in block 12 is fixedly connected below the tool holder 2, serving as an intermediate carrier connecting the tool holder 2 and the assembly 3, enabling rapid docking between the tool holder 2 and the assembly 3. The through groove 15 is located on the assembly 3, providing an insertion channel for the plug post 17, allowing it to penetrate the assembly 3 and engage with the plug-in block 12. The circular groove 16 connects to the upper part of the through groove 15. The inner diameter of the circular groove 16 is larger than the aperture of the through groove 15, providing rotational space for the two protrusions 18. Simultaneously, the stepped structure formed with the through groove 15 limits the movement of the protrusions 18.

[0027] The plug-in block 12 has curved surfaces 30 on both sides, allowing it to slide into the through groove 15. Two protrusions 18 are located on either side of the upper end of the insert post 17, which, after rotating with the insert post 17, engage with the stepped structure of the circular groove 16 to lock the insert post 17 and the assembly 3, preventing the insert post 17 from dislodging from the through groove 15. The insert post 17, inserted into the through groove 15, serves as the core component connecting the assembly 3 and the plug-in block 12. Its locking and unlocking mechanisms enable the fixation and separation of the tool holder 2 and the assembly 3. The two protrusions 18 can... The assembly 3 is able to rotate within the circular groove 16. A knob 7 is rotatably connected below the assembly 3. The knob 7 has a second groove 29 for easy turning. The knob 7 is fixedly connected to the insert 17. The knob 7 is used to drive the insert 17 to rotate synchronously by manual rotation, thereby controlling the rotation angle of the two protrusions 18 within the circular groove 16, realizing locking and unlocking operations. The assembly 3 is used to be fixedly installed on the pendulum shaft of the pendulum impact testing machine, serving as the connection base between the entire device and the testing machine. The disassembly and assembly structure of the impact blade is integrated on the pendulum shaft to ensure the stability of the force transmission path during the impact test.

[0028] In this embodiment, after the insertion block 12 on the tool holder 2 is inserted into the assembly block 3, the insertion post 17 can be inserted into the through groove 15 in the insertion block 12. When the protrusion 18 on the insertion post 17 abuts into the circular groove 16, the knob 7 drives the two protrusions 18 to rotate synchronously in the circular groove 16. At this time, the protrusion 18 leaves the alignment position corresponding to the through groove 15 and instead forms a limiting fit with the inner wall of the circular groove 16. The rotated protrusion 18 is blocked by the stepped structure of the circular groove 16, without... The blade rod 2 is axially dislodged from the through groove 15, thereby securing it firmly to the assembly 3. During disassembly, the knob 7 is rotated in the opposite direction, causing the protrusion 18 to rotate back to its initial position aligned with the through groove 15. At this point, the protrusion 18 is no longer blocked by the step of the circular groove 16. The insert post 17 can be pulled upward to dislodge it from the through groove 15. Then, the insert block 12 can be pulled out from the assembly 3 to complete the disassembly of the blade rod 2. This improves the convenience and reliability of the impact blade assembly and disassembly process.

[0029] Example 2: Unlike Example 1, referring to Figure 4 - Figure 7 This embodiment also has the following further features: The stabilizing component includes two balls 20, two mounting cylinders 19, two slides 23, two springs 21, and two fixing grooves 22. The two slides 23 are respectively provided on the two protrusions 18. The slides 23 are used to provide a precise sliding path for the mounting cylinders 19 and restrict the movement direction of the mounting cylinders 19 to linear motion. The two mounting cylinders 19 are slidably connected to the two slides 23. The mounting cylinders 19 are used to carry the balls 20 and at the same time serve as the connecting carrier of the springs 21, driving the balls 20 to move synchronously along the slides 23.

[0030] Two fixing grooves 22 are respectively provided on the plug-in block 12. The fixing grooves 22 are used to form a snap-fit ​​with the ball 20 to limit and fix the rotation position of the protrusion 18. The two balls 20 are respectively movably connected to the two mounting cylinders 19. The balls 20 are used to snap into the fixing grooves 22 under the action of the spring 21. The cooperation with the fixing grooves 22 prevents the protrusion 18 from rotating accidentally. One end of the two springs 21 is fixedly connected to the two mounting cylinders 19 respectively, and the other end is fixedly connected to the inner wall of the two sliding grooves 23 respectively. The springs 21 are used to provide continuous elastic force to push the mounting cylinders 19 and the balls 20 to move closer to the fixing grooves 22.

[0031] In this embodiment, after the plug-in block 12 is inserted into the assembly block 3, the protrusion 18 rotates within the circular groove 16 by turning the knob 7. At this time, the ball bearing 20 on the mounting cylinder 19 rolls against the inner wall of the circular groove 16 under the pressure of the spring 21. When it rolls to the fixing groove 22, the spring 21's rebound force causes the mounting cylinder 19 and the ball bearing 20 to insert into the fixing groove 22, forming a snap-fit ​​with the inner wall of the fixing groove 22, thus limiting the circumferential rotation position of the protrusion 18. At this time, the protrusion 18 cannot continue to rotate within the circular groove 16, ensuring that the protrusion 18 always remains in a locked state of misalignment with the through groove 15, enhancing the stability after installation.

[0032] It should be noted that before removing the plug block 12, a cylindrical object such as a screw can be inserted into the fixing groove 22. After the cylindrical object is inserted, it will squeeze the ball 20, causing the ball 20 to move away from the fixing groove 22, thus releasing the restriction on the rotation position of the protrusion 18. At this time, the operator can turn the knob 7 in the opposite direction to drive the plug 17 and the protrusion 18 to rotate until the axis of the protrusion 18 is parallel to the axis of the through groove 15. Then, the plug 17 is pulled upward to dislodge it from the through groove 15, and finally the plug block 12 can be smoothly removed from the assembly 3.

[0033] Example 3: Reference Figure 3 - Figure 5 Compared to Embodiment 1 and Embodiment 2, in this embodiment: The shock-absorbing component includes a threaded area 4, a sleeve 6, a pressure ring 8, two connecting blocks 9, and two rubber blocks 10. The sleeve 6 has a first groove 28 for easy screwing, and the sleeve 6 has an internal thread 25 that can cooperate with the threaded area 4. The pressure ring 8 has a screw set 26, and the pressure ring 8 is fixedly connected to the two rubber blocks 10 through the screw set 26. The threaded area 4 is located on the tool bar 2 and is used to cooperate with the internal thread 25 on the sleeve 6 to realize the up and down sliding of the sleeve 6. The pressure ring 8 is rotatably connected to the sleeve 6 and is used to transmit the downward pressure of the sleeve 6 and drive the connecting blocks 9 to move. The two connecting blocks 9 are respectively fixedly connected to the pressure ring 8 and are used to connect the pressure ring 8 and the rubber blocks 10 and transmit the force. The two rubber blocks 10 are respectively slidably connected to two sets of slide rails 11, and the slide rails 11 are used to provide sliding guidance for the rubber blocks 10.

[0034] Two rubber blocks 10 are fixedly installed below the two connecting blocks 9 respectively. A gap 27 is provided between the plug-in block 12 and the assembly block 3. The rubber block 10 is tightly attached to the gap 27 between the plug-in block 12 and the assembly block 3. One side of the rubber block 10 is curved, which allows the thickness of the rubber block 10 to increase as it slides downward, thereby gradually enhancing the filling effect of the gap 27 and enabling it to fit more tightly against the inner wall of the gap 27 between the plug-in block 12 and the assembly block 3. The sleeve 6 is slidably connected to the threaded area 4. The sleeve 6 is used to move up and down along the threaded area 4 by rotating.

[0035] The alarm assembly includes two mounting slots 5, two contact blocks 14, and two sensors 13. The two contact blocks 14 are fixedly connected to both sides of the plug block 12. The contact blocks 14 are used to shake with the plug block 12 and trigger the sensors 13. The two mounting slots 5 are respectively located on both sides of the assembly 3. The mounting slots 5 are used to provide mounting positions for the sensors 13.

[0036] Two sensors 13 are fixedly installed in two mounting slots 5 respectively. The sensors 13 are used to detect changes in the position of the contact block 14 and trigger an alarm. A gap is left between the contact block 14 and the sensor 13 to ensure that the sensor 13 is not accidentally triggered when the tool holder 2 is installed normally.

[0037] In this embodiment, after the plug-in block 12 is inserted into the assembly block 3, the sleeve 6 is rotated to slide downwards along the threaded area 4, causing the pressure ring 8 and connecting block 9 to move, so that the rubber block 10 is gradually inserted into the gap 27 between the plug-in block 12 and the assembly block 3. Through the filling and squeezing of the rubber block 10, the looseness between the two is eliminated. When the impact test is carried out, the rubber block 10 can absorb the vibration energy through its own elastic deformation, avoiding the loosening of the knife rod 2 during long-term impact tests, and ensuring the stability and accuracy of the test. If the knife rod 2 becomes loose, the plug-in block 12 will shake with the knife rod 2, thereby driving the contact block 14 to approach the sensor 13. After the contact block 14 contacts the sensor 13, the sensor 13 triggers an alarm signal to alarm the alarm system. The gap between the contact block 14 and the sensor 13 can ensure that the sensor 13 will not be falsely triggered when the knife rod 2 is in a normal installation state, ensuring the accuracy of the alarm signal, avoiding the failure of the impact test or equipment damage due to the loosening of the knife rod 2 not being detected in time, and improving the safety and reliability of the device.

[0038] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A convenient disassembly and assembly device for the impact blade of a pendulum impact testing machine, characterized in that, It includes a blade (1), a blade shank (2), a loading and unloading assembly, a stabilizing assembly, a shockproof assembly, and an alarm assembly. A block (3) is provided below the blade shank (2), and an mounting ring (24) is fixedly connected to the blade shank (2). The blade shank (2) is fixedly connected to the blade (1) through the mounting ring (24). The loading and unloading assembly is used to install or remove the cutter bar (2); The stabilizing component is used to enhance the stability of the tool holder (2) during installation; The shock-absorbing component is used to prevent the blade (1) and the handle (2) from loosening during impact testing. The alarm component is used to sound an alarm when the tool holder (2) becomes loose.

2. The device for conveniently dismounting and mounting the impact blade of a pendulum impact testing machine according to claim 1, characterized in that, The loading and unloading assembly includes a plug-in block (12), a through groove (15), a plug post (17), a circular groove (16), and two protrusions (18); the plug-in block (12) is provided with slide rails (11) on both sides, the plug-in block (12) is fixedly connected to the bottom of the knife bar (2), the through groove (15) is provided on the assembly block (3), and the circular groove (16) is connected to the top of the through groove (15).

3. The convenient disassembly and assembly device for the impact blade of a pendulum impact testing machine according to claim 2, characterized in that, The block (3) and the plug block (12) are respectively provided with a gap (27) on both sides. The plug block (12) is respectively provided with a curved surface (30) on both sides. The two protrusions (18) are respectively provided on both sides of the upper end of the plug (17). The plug (17) is inserted into the through groove (15). The two protrusions (18) can rotate in the circular groove (16).

4. The convenient disassembly and assembly device for the impact blade of a pendulum impact testing machine according to claim 2, characterized in that, The stabilizing component includes two balls (20), two mounting cylinders (19), two slides (23), two springs (21), and two fixing grooves (22); the two slides (23) are respectively provided on the two protrusions (18), and the two mounting cylinders (19) are respectively slidably connected to the two slides (23).

5. The convenient disassembly and assembly device for the impact blade of a pendulum impact testing machine according to claim 4, characterized in that, The two fixed grooves (22) are respectively provided on the plug block (12), the two balls (20) are respectively movably connected to the two mounting cylinders (19), one end of the two springs (21) is respectively fixedly connected to the two mounting cylinders (19), and the other end is respectively fixedly connected to the inner wall of the two sliding grooves (23). The mounting cylinders (19) are slidably connected to the fixed grooves (22).

6. The convenient disassembly and assembly device for the impact blade of a pendulum impact testing machine according to claim 2, characterized in that, The shock-absorbing component includes a threaded area (4), a sleeve (6), a pressure ring (8), two connecting blocks (9), and two rubber blocks (10); the threaded area (4) is located on the tool bar (2), the pressure ring (8) is rotatably connected to the sleeve (6), the two connecting blocks (9) are respectively fixedly connected to the pressure ring (8), and the two rubber blocks (10) are respectively slidably connected to two sets of slide rails (11).

7. The convenient disassembly and assembly device for the impact blade of a pendulum impact testing machine according to claim 6, characterized in that, The sleeve (6) is provided with a first texture (28), the sleeve (6) is provided with an internal thread (25), the pressure ring (8) is provided with a screw group (26), the pressure ring (8) is fixedly connected to two rubber blocks (10) through the screw group (26), the rubber blocks (10) are tightly attached to the gap 27 between the plug block (12) and the assembly block (3), and the sleeve (6) is slidably connected to the threaded area (4).

8. The convenient disassembly and assembly device for the impact blade of a pendulum impact testing machine according to claim 2, characterized in that, The alarm assembly includes two mounting slots (5), two contact blocks (14) and two sensors (13). The two contact blocks (14) are fixedly connected to both sides of the plug block (12), and the two mounting slots (5) are respectively located on both sides of the assembly block (3).

9. The convenient disassembly and assembly device for the impact blade of a pendulum impact testing machine according to claim 8, characterized in that, The two sensors (13) are fixedly installed in the two mounting slots (5) respectively, and a gap is left between the contact block (14) and the sensor (13).

10. The convenient disassembly and assembly device for the impact blade of a pendulum impact testing machine according to claim 7, characterized in that, A knob (7) is rotatably connected below the block (3). The knob (7) is fixedly connected to the insert (17). The knob (7) has a second texture (29). One side of the rubber block (10) is an arc surface. The block (3) is used to be fixedly installed on the pendulum shaft of the pendulum impact testing machine.

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