A device for dismounting and mounting the impact blade of a pendulum impact testing machine

Abstract

The application discloses an impact blade dismounting device of a pendulum impact testing machine, and belongs to the technical field of impact testing machine detection. The device comprises a supporting seat, the supporting seat comprises a supporting plate, a push-pull rod is movably arranged on the supporting plate, a first end of the push-pull rod is used for extending into a guide groove, a push-pull assembly is arranged at the first end of the push-pull rod, and a wedge-shaped pressing block is arranged in the guide groove and abuts against and tightly presses the side wall of the impact blade. The push-pull assembly is used for abutting against the side wall of the wedge-shaped pressing block and moving the wedge-shaped pressing block inward along the guide groove under the pushing of the push-pull rod, so that the impact blade is pushed to a mounting position and tightly pressed and limited. The push-pull assembly is also used for abutting against the side wall of the wedge-shaped pressing block and moving the wedge-shaped pressing block outward along the guide groove under the pulling of the push-pull rod, so that the wedge-shaped pressing block is separated from the impact blade. The application can solve the problems of the installation and dismounting of the impact blade in a narrow space, improve the operation efficiency, and ensure the installation and positioning accuracy of the impact blade.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of impact testing machine detection, in particular, to an impact blade dismounting device of a pendulum impact testing machine. BACKGROUND

[0002] The information provided in this section is for the purpose of generally presenting the context of the application. The work of the presently named inventors, to the extent the descriptions are described in this section, as well as the descriptions of aspects that can not constitute prior art at the time of filing, are neither expressly nor impliedly admitted to be prior art against the application.

[0003] The pendulum impact testing machine is a testing machine for testing the performance of metal materials, which is equipped with two pendulums, and the maximum impact energy is 150J and 300J respectively, and can test samples of different energy. Generally, the testing machine is equipped with two sizes of impact blades with a curvature radius of 2mm and 8mm, and in actual use, the impact blade can be replaced according to the opening size of the sample.

[0004] The impact test has certain risk, in order to prevent the object from flying out and the body part of the tester from invading the pendulum rotation range and causing accidental injury, for safety consideration, the newly manufactured impact testing machine adopts the wrapping method of protective net, only the anvil part has a window for hand operation.

[0005] In daily use, if the impact blade needs to be replaced, the limited operation space around the anvil will cause difficulty in replacement, at the same time, there is a lack of suitable installation and dismounting tools, only common hardware tools such as hammer, screwdriver and chisel are used, which is easy to cause damage to the hard and fragile impact blade and its wedge-shaped pressing block.

[0006] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the application, and therefore can include information that does not constitute prior art known to those skilled in the art. SUMMARY

[0007] In view of at least one of the above technical problems, the present application provides an impact blade dismounting device of a pendulum impact testing machine, which can solve the problem of installation and dismounting of the impact blade in a small space, improve the operation efficiency and ensure the installation and positioning accuracy of the impact blade.

[0008] According to one aspect of the present application, an impact blade dismounting device of a pendulum impact testing machine is provided, which is used for dismounting the impact blade in the hammer body of the pendulum impact testing machine, one side of the hammer body is provided with a guide groove, the impact blade is used to be installed in the hammer body along the guide groove, and the impact blade dismounting device of the pendulum impact testing machine comprises a supporting seat, a push-pull rod, a push-pull assembly and a wedge-shaped pressing block.

[0009] The support seat is used for abutting against the limiting hammer body, and the support seat comprises a support plate used for abutting against the side wall with the guide groove on the hammer body, a push-pull rod movably arranged on the support plate, a first end of the push-pull rod used for extending into the guide groove, a push-pull assembly arranged at the first end of the push-pull rod, and a wedge-shaped pressing block arranged in the guide groove and abutting against and pressing the side wall of the impact blade;

[0010] The push-pull assembly is used for abutting against the side wall of the wedge-shaped pressing block and moving the wedge-shaped pressing block along the guide groove inwardly under the pushing of the push-pull rod to push the impact blade to the installation position and press the limiting impact blade; the push-pull assembly is also used for abutting against the side wall of the wedge-shaped pressing block and moving the wedge-shaped pressing block along the guide groove outwardly under the pulling of the push-pull rod to separate from the impact blade.

[0011] In some embodiments of the present application, the push-pull assembly comprises a convex push-pull block connected to the first end of the push-pull rod, and a convex boss arranged on the side of the convex push-pull block away from the push-pull rod, the convex boss being used for abutting against the side wall of the wedge-shaped pressing block and moving the wedge-shaped pressing block along the guide groove inwardly under the pushing of the push-pull rod.

[0012] In some embodiments of the present application, the push-pull assembly comprises a concave push-pull block connected to the first end of the push-pull rod, and a limiting concave groove arranged on the side of the concave push-pull block away from the push-pull rod, the concave push-pull block being used for being sleeved on the wedge-shaped pressing block through the limiting concave groove and tightly holding the wedge-shaped pressing block, and moving the wedge-shaped pressing block along the guide groove outwardly under the pulling of the push-pull rod.

[0013] In some embodiments of the present application, the side wall of the limiting concave groove is made of elastic material, and a convex part is arranged at the opening of the limiting concave groove, the convex part being used for abutting against the side wall of the wedge-shaped pressing block when the concave push-pull block is sleeved on the wedge-shaped pressing block.

[0014] In some embodiments of the present application, the push-pull assembly comprises a telescopic rod, a clamping assembly and a mounting plate, the mounting plate being arranged at the first end of the push-pull rod, the telescopic rod being arranged on the side of the mounting plate away from the push-pull rod, and the clamping assembly being symmetrically arranged on the two sides of the mounting plate, the clamping assembly being used for being sleeved on the wedge-shaped pressing block and clamping the wedge-shaped pressing block when the wedge-shaped pressing block is disassembled, and the telescopic rod being used for being elongated to exceed the length of the clamping assembly and abutting against the side wall of the wedge-shaped pressing block when the wedge-shaped pressing block is installed.

[0015] In some embodiments of the present application, the clamping assembly comprises a clamping plate and a movable plate, a first end of the clamping plate being hinged to the mounting plate, and the movable plate being hinged to a second end of the clamping plate, the clamping plate being used for abutting against the side walls of the opposite sides of the wedge-shaped pressing block when the push-pull rod moves into the guide groove, and the movable plate being used for abutting against the side wall of the side of the wedge-shaped pressing block away from the push-pull rod when the push-pull rod moves out of the guide groove.

[0016] In some embodiments of the present application, the clamping assembly comprises a clamping plate, a movable plate and a second compression spring, the first end of the clamping plate is connected with the mounting plate through the second compression spring, and the movable plate is hinged at the second end of the clamping plate.

[0017] In some embodiments of the present application, the second end of the push-pull rod is provided with a hand wheel.

[0018] In some embodiments of the present application, the top surface of the support plate and the ground are both provided with a limiting groove, the support seat further comprises a sliding block and a limiting plate, the sliding block is slidingly arranged in the limiting groove, the limiting plate is rotatably arranged on the sliding block and is locked and limited with the sliding block through a locking member, and the limiting plate is used for abutting against the side wall of the limiting hammer body.

[0019] In some embodiments of the present application, the support seat further comprises a connecting plate and a first compression spring, the connecting plate is rotatably arranged on the top of the sliding block and is locked and limited with the sliding block through a locking member, the first end of the limiting plate is connected with the connecting plate through the first compression spring, the second end of the limiting plate is provided with a clamping part perpendicular to the limiting plate, and the clamping part is used for abutting against the adjacent side wall of the limiting hammer body when the limiting plate abuts against the side wall of the limiting hammer body.

[0020] The present application has the following beneficial effects:

[0021] The impact blade dismounting device of the pendulum impact testing machine can abut against the side wall provided with a guide groove on the hammer body through the support seat, and the push-pull assembly can be moved forward and backward along the direction perpendicular to the support plate through the push-pull rod, so that the push-pull assembly can not only abut against the wedge-shaped pressing block during the installation of the impact blade, but also push the wedge-shaped pressing block to abut against and press the impact blade, and push the impact blade to move to the installation position, so that the wedge-shaped pressing block can be fastened through the connecting bolt to realize the reinforced and limited fixing of the impact blade. The push-pull assembly can also clasp the wedge-shaped pressing block during the dismounting of the impact blade, drive the wedge-shaped pressing block to separate from the impact blade, loosen the limiting of the impact blade, and make the impact blade convenient to be unloaded. The present application can solve the problem of the installation and dismounting of the impact blade in a small space, improve the operation efficiency, ensure the installation and positioning accuracy of the impact blade, obviously improve the installation and dismounting efficiency of the pendulum impact blade, and has universal applicability, so it can be applied to the installation and dismounting of the impact blade of different types of C-shaped pendulum hammer bodies.

[0022] Of course, it is not necessary for any product implementing the present application to achieve all the advantages described above. In addition to the purposes, features and advantages described above, the present application has other purposes, features and advantages. The present application will be further described below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0023] The drawings constituting a part of this application serve to provide further understanding of the present application, the schematic embodiments of the present application and the description thereof serve to explain the present application and do not constitute undue limitations on the present application. In the drawings:

[0024] Figure 1 is a schematic diagram of the installation principle of the impact blade of the preferred embodiment of the present application;

[0025] Figure 2 is a schematic diagram of the disassembly principle of the impact blade of the preferred embodiment of the present application;

[0026] Figure 3 is a structural schematic diagram of the clamping assembly of the preferred embodiment of the present application;

[0027] Figure 4 is an installation schematic diagram of the limiting plate of the preferred embodiment of the present application;

[0028] Figure 5 is an installation schematic diagram of the telescopic rod of the preferred embodiment of the present application;

[0029] Legend: 1, support seat; 11, support plate; 12, limiting groove; 13, sliding block; 14, connecting plate; 15, first compression spring; 16, limiting plate; 161, clamping part; 2, push-pull rod; 21, hand wheel; 3, push-pull assembly; 31, convex push-pull block; 32, concave push-pull block; 33, telescopic rod; 34, clamping assembly; 341, clamping plate; 342, movable plate; 343, second compression spring; 35, mounting plate; 4, hammer body; 5, hammer rod; 6, wedge-shaped pressing block; 7, impact blade; 8, locking piece. DETAILED DESCRIPTION

[0030] The embodiments of the present application are described in detail below in combination with the drawings, but the present application can be implemented in various different ways limited and covered by the following description.

[0031] An impact blade dismounting device of a pendulum impact testing machine is used for dismounting an impact blade 7 in a hammer body 4 of the pendulum impact testing machine, a guide groove is formed on one side of the hammer body 4, the impact blade 7 is used to be installed in the hammer body 4 along the guide groove, and the impact blade dismounting device of the pendulum impact testing machine comprises a support seat 1, a push-pull rod 2, a push-pull assembly 3 and a wedge-shaped pressing block 6:

[0032] The support seat 1 is used to abut against the limiting hammer body 4, the support seat 1 comprises a support plate 11, the support plate 11 is used to abut against the side wall of the hammer body 4 on which the guide groove is formed, the push-pull rod 2 is used to be movably arranged on the support plate 11, a first end of the push-pull rod 2 is used to extend into the guide groove, the push-pull assembly 3 is arranged at the first end of the push-pull rod 2, and the wedge-shaped pressing block 6 is used to be arranged in the guide groove and abut against and press the side wall of the impact blade 7;

[0033] The push-pull assembly 3 is used to abut against the side wall of the wedge-shaped pressing block 6 and move the wedge-shaped pressing block 6 along the guide groove inward under the pushing of the push-pull rod 2 to push the impact blade 7 to the installation position and press the impact blade 7 tightly.

[0034] Here, the meaning of the "wedge-shaped pressing block 6" refers to the structure abutting against the impact blade 7. In some embodiments, the wedge-shaped pressing block 6 is a wedge-shaped block structure, i.e., a block structure with a trapezoidal cross section.

[0035] Here, the push-pull rod 2 can be a screw rod, and the push-pull rod 2 is connected with the support plate 11 through threads.

[0036] The impact blade dismounting device of the pendulum impact testing machine disclosed in the application is used to abut against the side wall of the hammer body 4 provided with the guide groove through the support seat 1, and the push-pull assembly 3 is driven by the push-pull rod 2 to move forward and backward in a direction perpendicular to the support plate 11. The push-pull assembly 3 can not only abut against the wedge-shaped pressing block 6 during the installation of the impact blade 7 and push the wedge-shaped pressing block 6 to abut against and press the impact blade 7 tightly, but also push the impact blade 7 to the installation position. At this time, the wedge-shaped pressing block 6 can be fastened by the connecting bolt to realize the reinforced and limited fixing of the impact blade 7. The push-pull assembly 3 can also hold the wedge-shaped pressing block 6 during the dismounting of the impact blade 7, drive the wedge-shaped pressing block 6 to disengage from the impact blade 7, and loosen the limitation of the impact blade 7, so that the impact blade 7 can be conveniently removed.

[0037] Preferably, as shown in Figure 1 The push-pull assembly 3 includes a convex push-pull block 31 connected to the first end of the push-pull rod 2. The side of the convex push-pull block 31 away from the push-pull rod 2 is provided with a boss for abutting against the side wall of the wedge-shaped pressing block 6 and driving the wedge-shaped pressing block 6 to move inward along the guide groove under the pushing of the push-pull rod 2.

[0038] It can be understood that in this embodiment, only the simple convex push-pull block 31 is used to abut against the wedge-shaped pressing block 6, which can push the wedge-shaped pressing block 6 into the guide groove to abut against and limit the impact blade 7. At this time, the wedge-shaped pressing block 6 can be fastened by the connecting bolt to realize the reinforced and limited fixing of the impact blade 7.

[0039] It should be noted that during the installation of the impact blade 7, the hammer body 4 can be held by the support seat 1 in a C-shaped manner, i.e., the hammer body 4 is held and limited in a clamping manner by the limiting plate 16 to limit the hammer body 4 and facilitate the forward and backward movement of the push-pull rod 2.

[0040] Preferably, as shown in Figure 2As shown, the push-pull assembly 3 comprises a concave push-pull block 32 connected to the first end of the push-pull rod 2, and a limiting groove is formed on the side of the concave push-pull block 32 away from the push-pull rod 2. The concave push-pull block 32 is used to be sleeved on the wedge-shaped pressing block 6 through the limiting groove and tightly embrace the wedge-shaped pressing block 6, and drive the wedge-shaped pressing block 6 to move outward along the guide groove under the pulling of the push-pull rod 2.

[0041] It can be understood that in this embodiment, when it is necessary to disassemble the impact blade 7, the concave push-pull block 32 with the limiting groove is sleeved on the wedge-shaped pressing block 6 to tightly embrace and limit the wedge-shaped pressing block 6, and then the concave push-pull block 32 and the wedge-shaped pressing block 6 are moved outward along the guide groove by the push-pull rod 2, so that the wedge-shaped pressing block 6 is separated from the impact blade 7, facilitating the disassembly of the impact blade 7.

[0042] It should be noted that during the disassembly of the impact blade 7, only the side of the support plate 11 abutting against the hammer body 4 is needed. By loosening the locking piece 8, the limiting plate 16 is rotated to disengage from the limiting of the hammer body 4, facilitating the overall removal of the support seat 1 from the hammer body 4, so as to disassemble and remove the wedge-shaped pressing block 6 and the impact blade 7.

[0043] Preferably, the side wall of the limiting groove is made of elastic material, and a protruding part is arranged at the opening of the limiting groove, which is used to abut against the side wall of the limiting wedge-shaped pressing block 6 when the concave push-pull block 32 is sleeved on the wedge-shaped pressing block 6.

[0044] It can be understood that when the wedge-shaped pressing block 6 is inserted into the limiting groove of the concave push-pull block 32, the side wall of the limiting groove made of elastic material has better elasticity, which can reduce the damage to the wedge-shaped pressing block 6, and the protruding part can hold the side wall of the wedge-shaped pressing block 6, so as to tightly embrace the wedge-shaped pressing block 6 by the concave push-pull block 32, facilitating the disassembly and removal of the wedge-shaped pressing block 6 by the push-pull rod 2.

[0045] In another embodiment, the push-pull assembly 3 comprises a telescopic rod 33, a clamping assembly 34 and a mounting plate 35. The mounting plate 35 is arranged at the first end of the push-pull rod 2, the telescopic rod 33 is arranged at the side of the mounting plate 35 away from the push-pull rod 2, and the clamping assembly 34 is symmetrically arranged on both sides of the mounting plate 35. The clamping assembly 34 is used to be sleeved on the wedge-shaped pressing block 6 and tightly limit it when disassembling the wedge-shaped pressing block 6, and the telescopic rod 33 is used to be extended to exceed the length of the clamping assembly 34 and abut against the side wall of the wedge-shaped pressing block 6 when mounting the wedge-shaped pressing block 6.

[0046] It can be understood that the push-pull assembly 3 in the embodiment has multiple purposes. When the telescopic rod 33 is extended, the telescopic rod 33 can be used to abut and push the wedge-shaped pressing block 6 for installation. When the telescopic rod 33 is retracted, the wedge-shaped pressing block 6 can be clamped by the clamping assembly 34, thereby achieving disassembly of the wedge-shaped pressing block 6. Therefore, it is not necessary to replace different push-pull blocks on the push-pull rod 2, which is conducive to improving the overall disassembly efficiency.

[0047] It should be noted that the first end of the push-pull rod 2 can be connected with the convex push-pull block 31, the concave push-pull block 32 or the mounting plate 35 through threads, or the push-pull rod 2 can be connected with the convex push-pull block 31, the concave push-pull block 32 or the mounting plate 35 through bearings, and the connection mode is selected as appropriate.

[0048] Preferably, the clamping assembly 34 includes a clamping plate 341 and a movable plate 342. The first end of the clamping plate 341 is hinged to the mounting plate 35, and the movable plate 342 is hinged to the second end of the clamping plate 341. The clamping plate 341 is used to abut and press the side walls on the opposite sides of the wedge-shaped pressing block 6 when the push-pull rod 2 moves into the guide groove. The movable plate 342 is used to abut and press the side wall on the side of the wedge-shaped pressing block 6 away from the push-pull rod 2 when the push-pull rod 2 moves out of the guide groove.

[0049] It can be understood that the clamping plate 341 in the embodiment is hinged to the two sides of the mounting plate 35, and the movable plate 342 is hinged to the clamping plate 341. The clamping plate 341 can abut the two sides of the wedge-shaped pressing block 6, and the movable plate 342 can abut the side wall on the side of the wedge-shaped pressing block 6 away from the push-pull rod 2.

[0050] It should be noted that the movable plate 342 is preferably hinged to the clamping plate 341 through a torsional spring. When the wedge-shaped pressing block 6 is inserted between the two clamping plates 341, the two movable plates 342 can be unfolded. When the push-pull rod 2 drives the clamping plate 341 and the movable plate 342 to move out of the guide groove, the movable plate 342 can abut the side wall on the side of the wedge-shaped pressing block 6 away from the push-pull rod 2.

[0051] In another embodiment, the clamping assembly 34 includes a clamping plate 341, a movable plate 342 and a second compression spring 343. The first end of the clamping plate 341 is connected to the mounting plate 35 through the second compression spring 343, and the movable plate 342 is hinged to the second end of the clamping plate 341.

[0052] It can be understood that the clamping plate 341 is installed through the second compression spring 343, which can achieve elastic installation of the clamping plate 341 to adapt to the pressing and limiting of wedge-shaped pressing blocks 6 of different sizes, and can reduce the damage caused by the rigid abutment of the clamping plate 341 to the wedge-shaped pressing block 6.

[0053] Optionally, please refer to Figure 3As shown, the second end of the push-pull rod 2 is provided with a hand wheel 21.

[0054] It can be understood that the push-pull rod 2 can be conveniently operated through the hand wheel 21, which is beneficial to improve the use convenience of the device.

[0055] Preferably, referring to Figure 1 As shown, the top surface of the support plate 11 and the ground are both provided with a limiting groove 12, the support base 1 further comprises a sliding block 13 and a limiting plate 16, the sliding block 13 is slidingly arranged in the limiting groove 12, the limiting plate 16 is rotatably arranged on the sliding block 13 and is locked and limited with the sliding block 13 through the locking member 8, and the limiting plate 16 is used for abutting against the side wall of the limiting hammer body 4.

[0056] Specifically, the support base 1 further comprises a connecting plate 14 and a first compression spring 15, the connecting plate 14 is rotatably arranged on the top of the sliding block 13 and is locked and limited with the sliding block 13 through the locking member 8, the first end of the limiting plate 16 is connected with the connecting plate 14 through the first compression spring 15, and the second end of the limiting plate 16 is provided with a clamping part 161 which is perpendicular to the limiting plate 16, and the clamping part 161 is used for abutting against the adjacent side wall of the limiting hammer body 4 when the limiting plate 16 abuts against the side wall of the hammer body 4.

[0057] It should be noted that the sliding block 13 can be connected with one of a plurality of limiting screw holes which are pre-set on the side wall of the limiting groove 12 through a limiting screw, so as to realize the locking and limiting of the sliding block 13 after being adjusted to different positions.

[0058] It can be understood that the connecting plate 14 and the limiting plate 16 are moved by the sliding block 13, and the connecting plate 14 and the limiting plate 16 can rotate around the locking member 8 to drive the limiting plate 16 to be accommodated on both sides of the support plate 11, so as to avoid the extension of the limiting plate 16 exposed outside the support plate 11, and facilitate the turnover, disassembly and assembly of the whole support base 1.

[0059] Optionally, the locking member 8 adopts a screw rod, the connecting plate 14 and the sliding block 13 are sequentially penetrated by the locking member 8, and the connecting plate 14 and the sliding block 13 are locked and limited through a locking nut, and the connecting plate 14 can be rotated around the locking member 8 by loosening the locking nut.

[0060] It should be noted that in this document, the terms "comprising", "containing" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or equipment.

[0061] The principles and implementations of the present application are described herein with specific examples. The above examples are only used to help understand the method and its core idea of the present application. The above description is only the preferred embodiments of the present application. It should be pointed out that due to the limited nature of the language expression, there are objectively infinite specific structures, and for ordinary skilled persons in the art, without departing from the principles of the present application, a number of improvements, refinements or changes can be made, or the above technical features can be combined in an appropriate manner. The improvements, refinements, changes or combinations, or the application of the inventive concept and technical solution to other fields without improvement, shall be regarded as the protection of the present application.

Claims

1. A device for dismounting and mounting an impact blade (7) in a pendulum impact testing machine, the device being used for dismounting and mounting the impact blade (7) in a hammer body (4) of the pendulum impact testing machine, the hammer body (4) being provided with a guide groove on one side, and the impact blade (7) being arranged to be mounted in the hammer body (4) along the guide groove, characterized in that The impact blade dismounting device of the pendulum impact testing machine comprises a supporting seat (1), a push-pull rod (2), a push-pull assembly (3) and a wedge-shaped pressing block (6): The supporting seat (1) is used for abutting against the limiting hammer body (4), the supporting seat (1) comprises a supporting plate (11), the supporting plate (11) is used for abutting against the side wall of the hammer body (4) provided with a guide groove, the push-pull rod (2) is used for movably penetrating through the supporting plate (11), the first end of the push-pull rod (2) is used for extending into the guide groove, the push-pull assembly (3) is arranged at the first end of the push-pull rod (2), and the wedge-shaped pressing block (6) is used for being arranged in the guide groove and abutting against and pressing the side wall of the impact blade (7); The push-pull assembly (3) is used for abutting against the side wall of the wedge-shaped pressing block (6) and moving the wedge-shaped pressing block (6) inwards along the guide groove under the pushing of the push-pull rod (2) to push the impact blade (7) to the mounting position and press the impact blade (7); the push-pull assembly (3) is also used for abutting against the side wall of the wedge-shaped pressing block (6) and moving the wedge-shaped pressing block (6) outwards along the guide groove under the pulling of the push-pull rod (2) to disengage from the impact blade (7); the push-pull assembly (3) comprises an extension rod (33), a clamping assembly (34) and a mounting plate (35), the mounting plate (35) is arranged at the first end of the push-pull rod (2), the extension rod (33) is arranged at the side of the mounting plate (35) away from the push-pull rod (2), and the clamping assembly (34) is symmetrically arranged at the two sides of the mounting plate (35); the clamping assembly (34) is used for being sleeved on the wedge-shaped pressing block (6) and clamping the wedge-shaped pressing block (6) when the wedge-shaped pressing block (6) is dismounted, and the extension rod (33) is used for being elongated to exceed the length of the clamping assembly (34) to abut against the side wall of the wedge-shaped pressing block (6) when the wedge-shaped pressing block (6) is mounted; the clamping assembly (34) comprises a clamping plate (341) and a movable plate (342), the first end of the clamping plate (341) is hinged to the mounting plate (35), and the movable plate (342) is hinged to the second end of the clamping plate (341).

2. The impact blade attachment and detachment device of a pendulum impact testing machine according to claim 1, wherein The push-pull assembly (3) comprises a convex push-pull block (31), the convex push-pull block (31) is connected to the first end of the push-pull rod (2), a convex boss is arranged at the side of the convex push-pull block (31) away from the push-pull rod (2), and the convex boss is used for abutting against the side wall of the wedge-shaped pressing block (6) and moving the wedge-shaped pressing block (6) inwards along the guide groove under the pushing of the push-pull rod (2).

3. The impact blade attachment and detachment device of a pendulum impact testing machine according to claim 1, wherein The push-pull assembly (3) comprises a concave push-pull block (32), the concave push-pull block (32) is connected to the first end of the push-pull rod (2), a limiting concave groove is arranged at the side of the concave push-pull block (32) away from the push-pull rod (2), and the concave push-pull block (32) is used for being sleeved on the wedge-shaped pressing block (6) through the limiting concave groove and clamping the wedge-shaped pressing block (6) and moving the wedge-shaped pressing block (6) outwards along the guide groove under the pulling of the push-pull rod (2).

4. The impact blade attachment and detachment device of a pendulum impact testing machine according to claim 3, wherein The side wall of the limiting concave groove is made of elastic material, and a convex part is arranged at the opening of the limiting concave groove, and the convex part is used for abutting against the side wall of the wedge-shaped pressing block (6) when the concave push-pull block (32) is sleeved on the wedge-shaped pressing block (6).

5. The impact blade attachment and detachment device of a pendulum impact testing machine according to claim 1, wherein The clamping plate (341) is used for abutting against the side walls on the opposite sides of the wedge-shaped pressing block (6) when the push-pull rod (2) moves into the guide groove, and the movable plate (342) is used for abutting against the side wall on the side of the wedge-shaped pressing block (6) away from the push-pull rod (2) when the push-pull rod (2) moves out of the guide groove.

6. The impact blade attachment and detachment device of a pendulum impact testing machine according to claim 1, wherein The clamping assembly (34) further comprises a second compression spring (343), the first end of the clamping plate (341) is connected with the mounting plate (35) through the second compression spring (343), and the movable plate (342) is hinged to the second end of the clamping plate (341).

7. The impact blade attachment and detachment device of a pendulum impact testing machine according to claim 1, wherein The second end of the push-pull rod (2) is provided with a hand wheel (21).

8. The impact blade attachment and detachment device of a pendulum impact testing machine according to claim 1, wherein The top surface and the bottom surface of the support plate (11) are both provided with a limiting groove (12), the support base (1) further comprises a sliding block (13) and a limiting plate (16), the sliding block (13) is slidingly arranged in the limiting groove (12), the limiting plate (16) is rotatably arranged on the sliding block (13) and is locked and limited with the sliding block (13) through the locking member (8), and the limiting plate (16) is used for abutting against the side wall of the limiting hammer body (4).

9. The impact blade removal device of a pendulum impact tester according to claim 8, wherein The support base (1) further comprises a connecting plate (14) and a first compression spring (15), the connecting plate (14) is rotatably arranged on the top of the sliding block (13) and is locked and limited with the sliding block (13) through the locking member (8), the first end of the limiting plate (16) is connected with the connecting plate (14) through the first compression spring (15), the second end of the limiting plate (16) is provided with a clamping part (161) perpendicular to the limiting plate (16), and the clamping part (161) is used for abutting against the adjacent side wall of the limiting hammer body (4) when the limiting plate (16) abuts against the side wall of the hammer body (4).

Images