Impact blade dismounting device of pendulum impact testing machine

Abstract

The invention discloses an impact blade dismounting and mounting device of a pendulum impact testing machine, which belongs to the technical field of impact testing machine detection, and comprises a supporting seat, the supporting seat comprises a supporting plate, a push-pull rod is movably arranged on the supporting plate in a penetrating manner, a first end of the push-pull rod is used for extending into a guide groove, and a push-pull assembly is arranged at the first end of the push-pull rod and is used for pushing the push-pull rod into the guide groove. The wedge-shaped pressing block is used for being arranged in the guide groove and abutting against and pressing 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 driving the wedge-shaped pressing block to move inwards along the guide groove under pushing of the push-pull rod so as to push the impact cutting edge to the installation position and press and limit the impact cutting edge. The push-pull assembly is further used for abutting against the side wall of the wedge-shaped pressing block and driving the wedge-shaped pressing block to move outwards along the guide groove to be separated from the impact blade under pulling of the push-pull rod. The mounting and dismounting problems of the impact blade in a narrow space can be solved, the operation efficiency is improved, and the mounting and positioning precision of the impact blade is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of impact testing machine detection, and in particular, to an impact blade disassembly and assembly device for a pendulum impact testing machine. Background Art

[0002] The information provided in this section is for the purpose of generally presenting the background of the present application. To the extent described in this section, the work of the presently named inventors and aspects of the description that may not constitute prior art at the time of filing are neither explicitly nor implicitly admitted to be prior art to the present application.

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

[0004] Impact tests are somewhat dangerous. In order to prevent objects from flying out and parts of the tester's body from entering the pendulum's rotating range and causing accidental injuries, for safety reasons, the newly manufactured impact testing machine is wrapped in a protective net, with only a window left at the anvil for hand entry to operate.

[0005] In daily use, if the impact blade needs to be replaced, it will be difficult to replace due to the limited operating space around the anvil. At the same time, there is a lack of suitable installation and disassembly tools, and only common hardware tools such as hammers, screwdrivers, chisels, etc. are used, which can easily cause damage to the hard and fragile impact blade and its wedge-shaped pressure block.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

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

[0008] According to one aspect of the present application, an impact blade disassembly and assembly device of a pendulum impact tester is provided, which is used to disassemble and assemble the impact blade in the hammer body of the pendulum impact tester. A guide groove is provided on one side of the hammer body, and the impact blade is used to be installed in the hammer body along the guide groove. The impact blade disassembly and assembly device of the pendulum impact tester includes a support seat, a push-pull rod, a push-pull assembly and a wedge-shaped pressure block:

[0009] The support seat is used to abut against the limiting hammer body, and the support seat includes a support plate, and the support plate is used to abut against the side wall of the hammer body with a guide groove, and the push-pull rod is used to be movably arranged on the support plate, and the first end of the push-pull rod is used to extend into the guide groove, and the push-pull assembly is arranged at the first end of the push-pull rod, and the wedge-shaped pressure block is used to be arranged in the guide groove and abut against the side wall of the impact blade;

[0010] The push-pull assembly is used to abut the side wall of the wedge-shaped pressure block and, under the push of the push-pull rod, drive the wedge-shaped pressure block to move inward along the guide groove to push the impact blade to the installation position and press the limited impact blade; the push-pull assembly is also used to abut and hold the side wall of the wedge-shaped pressure block and, under the pull of the push-pull rod, drive the wedge-shaped pressure block to move outward along the guide groove to disengage from the impact blade.

[0011] In some embodiments of the present application, the push-pull assembly includes a convex push-pull block, which is connected to the first end of the push-pull rod. A boss is provided on the side of the convex push-pull block away from the push-pull rod. The boss is used to abut the side wall of the wedge-shaped pressure block and drive the wedge-shaped pressure block to move inward along the guide groove under the push of the push-pull rod.

[0012] In some embodiments of the present application, the push-pull assembly includes a concave push-pull block, which is connected to the first end of the push-pull rod. A limiting groove is provided on the side of the concave push-pull block away from the push-pull rod. The concave push-pull block is used to be sleeved on the wedge-shaped pressure block through the limiting groove and hold the wedge-shaped pressure block tightly, and drive the wedge-shaped pressure block to move outward along the guide groove under the pulling of the push-pull rod.

[0013] In some embodiments of the present application, the side wall of the limiting groove is made of elastic material, and a protrusion is provided at the opening of the limiting groove, which is used to abut the side wall of the limiting wedge-shaped pressure block when the concave push-pull block is sleeved on the wedge-shaped pressure block.

[0014] In some embodiments of the present application, the push-pull assembly includes a telescopic rod, a clamping assembly and a mounting plate, the mounting plate is arranged at the first end of the push-pull rod, the telescopic rod is arranged on the side of the mounting plate away from the push-pull rod, the clamping assembly is symmetrically arranged on both sides of the mounting plate, the clamping assembly is used to be sleeved on the wedge pressure block and clamp it to limit the position when the wedge pressure block is removed, and the telescopic rod is used to extend when the wedge pressure block is installed to exceed the length of the clamping assembly and then abut against the side wall of the wedge pressure block.

[0015] In some embodiments of the present application, the clamping assembly includes a clamping plate and a movable plate, the first end of the clamping plate is hinged to the mounting plate, the movable plate is hinged to the second end of the clamping plate, the clamping plate is used to abut against the side walls on opposite sides of the pressing wedge-shaped pressure block when the push-pull rod moves into the guide groove, and the movable plate is used to abut against the side wall of the limiting wedge-shaped pressure 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 includes a clamping plate, a movable plate and a second compression spring, the first end of the clamping plate is connected to the mounting plate through the second compression spring, and the movable plate is hinged to the second end of the clamping plate.

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

[0018] In some embodiments of the present application, limiting grooves are provided on the top surface and the ground surface of the support plate, and the support seat also includes a slider and a limiting plate. The slider is slidably arranged in the limiting groove, the limiting plate is rotatably arranged on the slider and the limiting plate and the slider are locked and limited by a locking member, and the limiting plate is used to connect to the side wall of the limiting hammer body.

[0019] In some embodiments of the present application, the support seat also includes a connecting plate and a first compression spring. The connecting plate is rotatably arranged on the top of the slider and the connecting plate and the slider are locked and limited by a locking member. The first end of the limiting plate is connected to the connecting plate through the first compression spring. The second end of the limiting plate is provided with a clamping portion that is perpendicular to the limiting plate. The clamping portion is used to abut against the side wall adjacent to the limiting hammer body when the limiting plate abuts against the side wall of the hammer body.

[0020] This application has the following beneficial effects:

[0021] The present application discloses an impact blade disassembly and assembly device of a pendulum impact testing machine, which is abutted against the side wall of the hammer body with a guide groove through a support seat, and the push-pull assembly is driven by a push-pull rod to move forward and backward in a direction perpendicular to the support plate. The push-pull assembly can not only abut against the wedge-shaped pressure block during the installation of the impact blade, but also push the wedge-shaped pressure block to abut and press the impact blade, and push the impact blade to the installation position. At this time, the wedge-shaped pressure block can be fastened by connecting bolts to achieve enhanced limit fixation of the impact blade. The push-pull assembly can also hold the wedge-shaped pressure block tightly during the removal of the impact blade, drive the wedge-shaped pressure block to separate from the impact blade, and release the limit on the impact blade, so that the impact blade can be easily removed. The present application can solve the problem of installation and removal of the impact blade in a narrow space, improve operating efficiency, ensure the installation and positioning accuracy of the impact blade, and significantly improve the loading and unloading efficiency of the pendulum impact blade. It has universal applicability and can be promoted to the installation and removal of impact blades of different types of C-type pendulum hammer bodies.

[0022] Of course, any product implementing this application does not necessarily need to achieve all the advantages described above at the same time. In addition to the purposes, features and advantages described above, this application also has other purposes, features and advantages. The following will further describe this application in detail with reference to the figures. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

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

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

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

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

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

[0029] Legend: 1. Support seat; 11. Support plate; 12. Limiting groove; 13. Slider; 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 pressure block; 7. Impact blade; 8. Locking piece. DETAILED DESCRIPTION

[0030] The embodiments of the present application are described in detail below in conjunction with the accompanying drawings, but the present application can be implemented in a variety of different ways defined and covered below.

[0031] An impact blade disassembly and assembly device for a pendulum impact tester is used to disassemble and assemble an impact blade 7 in a hammer body 4 of the pendulum impact tester. A guide groove is provided 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. The impact blade disassembly and assembly device for the pendulum impact tester includes 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, and the support seat 1 includes a support plate 11, and the support plate 11 is used to abut against the side wall of the hammer body 4 with a guide groove, and the push-pull rod 2 is used to be movably arranged on the support plate 11, and the first end of the push-pull rod 2 is used to extend into the guide groove, and the push-pull assembly 3 is arranged at the first end of the push-pull rod 2, and the wedge-shaped pressure block 6 is used to be arranged in the guide groove and abut against the side wall of the impact blade 7;

[0033] The push-pull assembly 3 is used to abut the side wall of the wedge-shaped pressure block 6 and, under the push of the push-pull rod 2, drive the wedge-shaped pressure block 6 to move inward along the guide groove to push the impact blade 7 to the installation position and press the limiting impact blade 7; the push-pull assembly 3 is also used to abut and hold the side wall of the wedge-shaped pressure block 6 and, under the pull of the push-pull rod 2, drive the wedge-shaped pressure block 6 to move outward along the guide groove to disengage from the impact blade 7.

[0034] Here, the “wedge-shaped pressure block 6” means a structure that abuts against the impact blade 7. In some embodiments, the wedge-shaped pressure block 6 is a wedge-shaped block structure, that is, a block structure with a trapezoidal cross section.

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

[0036] The present application discloses an impact blade disassembly and assembly device of a pendulum impact tester, which is abutted against the side wall of the hammer body 4 with a guide groove through a support seat 1, and drives the push-pull assembly 3 to move forward and backward in a direction perpendicular to the support plate 11 through a push-pull rod 2. The push-pull assembly 3 can not only abut against the wedge-shaped pressure block 6 during the installation of the impact blade 7, but also push the wedge-shaped pressure block 6 to abut and press the impact blade 7, and push the impact blade 7 to move to the installation position. At this time, the wedge-shaped pressure block 6 can be fastened by connecting bolts to achieve enhanced limit fixation of the impact blade 7. The push-pull assembly 3 can also hold the wedge-shaped pressure block 6 tightly during the removal of the impact blade 7, drive the wedge-shaped pressure block 6 to separate from the impact blade 7, and release the limit on the impact blade 7, so that the impact blade 7 can be easily removed.

[0037] Preferably, please refer to Figure 1 As shown, the push-pull assembly 3 includes a convex push-pull block 31, which is connected to the first end of the push-pull rod 2. A boss is provided on the side of the convex push-pull block 31 away from the push-pull rod 2. The boss is used to abut the side wall of the wedge-shaped pressure block 6 and drive the wedge-shaped pressure block 6 to move inward along the guide groove under the push of the push-pull rod 2.

[0038] It is understandable that in this embodiment, it is only necessary to adopt a simple convex push-pull block 31 to abut against the wedge-shaped pressing block 6, so that the wedge-shaped pressing block 6 can be pushed into the guide groove to abut and limit the impact blade 7. At this time, the wedge-shaped pressing block 6 can be fastened by connecting bolts to achieve enhanced limit fixation 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 in a C shape by the support seat 1, that is, the hammer body 4 can be held and limited by the limiting plate 16, so as to limit the hammer body 4 and facilitate the forward and backward movement of the push-pull rod 2.

[0040] Preferably, please refer to Figure 2As shown, the push-pull assembly 3 includes a concave push-pull block 32, which is connected to the first end of the push-pull rod 2. A limiting groove is provided 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 pressure block 6 through the limiting groove and hold the wedge-shaped pressure block 6 tightly, and drive the wedge-shaped pressure 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 the impact blade 7 needs to be disassembled, the concave push-pull block 32 with a limit groove is sleeved on the wedge-shaped pressure block 6 to achieve the clamping and limiting of the wedge-shaped pressure block 6. The concave push-pull block 32 and the wedge-shaped pressure block 6 can be driven by the push-pull rod 2 to move out of the guide groove, so that the wedge-shaped pressure block 6 is separated from the impact blade 7, thereby facilitating the removal of the impact blade 7.

[0042] It should be noted that, during the removal of the impact blade 7, the support plate 11 only needs to abut against one side of the hammer body 4. The limiting plate 16 can be rotated to disengage the limiting position of the hammer body 4 by loosening the locking member 8, so that the support seat 1 can be removed from the hammer body 4 as a whole, so as to facilitate the removal of the wedge-shaped pressure block 6 and the impact blade 7.

[0043] Preferably, the side wall of the limiting groove is made of elastic material, and a protrusion is provided at the opening of the limiting groove, and the protrusion is used to abut 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 pressure 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 pressure block 6, and the protrusion can buckle the side wall of the wedge-shaped pressure block 6, so that the concave push-pull block 32 can hold the wedge-shaped pressure block 6 tightly, so that the push-pull rod 2 can smoothly remove and loosen the wedge-shaped pressure block 6.

[0045] In another embodiment, the push-pull assembly 3 includes 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 on 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 pressure block 6 and clamp it to limit its position when the wedge-shaped pressure block 6 is removed, and the telescopic rod 33 is used to extend when the wedge-shaped pressure block 6 is installed to exceed the length of the clamping assembly 34 and then abut against the side wall of the wedge-shaped pressure block 6.

[0046] It can be understood that the push-pull assembly 3 in this embodiment has multiple uses. By extending the telescopic rod 33, the telescopic rod 33 can be used to push the wedge-shaped pressing block 6 for installation. By retracting the telescopic rod 33, the wedge-shaped pressing block 6 can be clamped by the clamping assembly 34, thereby realizing the removal of the wedge-shaped pressing block 6. Therefore, there is no need to replace different push-pull blocks on the push-pull rod 2, which is conducive to improving the overall disassembly and assembly efficiency.

[0047] It should be noted that the first end of the push-pull rod 2 can be connected to 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 to the preset bearings on the convex push-pull block 31, the concave push-pull block 32 or the mounting plate 35, and the connection method can be selected according to the situation.

[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 against the side walls on opposite sides of the pressing wedge-shaped pressure block 6 when the push-pull rod 2 moves into the guide groove, and the movable plate 342 is used to abut against the side wall of the limiting wedge-shaped pressure 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 this embodiment is hinged on both sides of the mounting plate 35, and the movable plate 342 is hinged on the clamping plate 341, so that the clamping plate 341 can abut against both sides of the wedge-shaped pressure block 6, and at the same time, the movable plate 342 can abut against the side wall of the limiting wedge-shaped pressure 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 torsion spring. When the wedge-shaped pressure block 6 is inserted between the clamping plates 341 on both sides, the movable plates 342 on both sides 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 against the side wall of the limiting wedge-shaped pressure 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 via 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 realize the elastic installation of the clamping plate 341 to adapt to the clamping limit of wedge-shaped pressure blocks 6 of different sizes, and can reduce the rigid abutment of the clamping plate 341 against the wedge-shaped pressure block 6 to reduce the damage caused by collision.

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

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

[0055] Preferably, please refer to Figure 1 As shown, the top surface and the ground surface of the support plate 11 are provided with a limit groove 12, and the support seat 1 also includes a slider 13 and a limit plate 16. The slider 13 is slidably set in the limit groove 12, and the limit plate 16 is rotatably set on the slider 13 and the limit plate 16 and the slider 13 are locked and limited by the locking member 8. The limit plate 16 is used to connect the side wall of the limit hammer body 4 to the ground.

[0056] Specifically, the support seat 1 also includes a connecting plate 14 and a first compression spring 15. The connecting plate 14 is rotatably arranged on the top of the slider 13 and the connecting plate 14 and the slider 13 are locked and limited by the locking member 8. The first end of the limiting plate 16 is connected to the connecting plate 14 through the first compression spring 15. The second end of the limiting plate 16 is provided with a clamping portion 161 which is perpendicular to the limiting plate 16. The clamping portion 161 is used to abut against the side wall adjacent to 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 slider 13 can be connected to one of the plurality of limiting screw holes preset on the side wall of the limiting groove 12 through a limiting bolt, so as to achieve locking and limiting of the slider 13 after the slider 13 is adjusted to a different position.

[0058] It can be understood that the connecting plate 14 and the limiting plate 16 are moved by the slider 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 stored on both sides of the support plate 11, thereby preventing the limiting plate 16 from extending and being exposed outside the support plate 11, thereby facilitating the overall rotation and disassembly of the support seat 1.

[0059] Optionally, the locking member 8 is a screw rod, which passes through the connecting plate 14 and the slider 13 in sequence, and the connecting plate 14 and the slider 13 are locked and limited by a locking nut. 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 article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0061] This article uses specific examples to illustrate the principles and implementation methods of this application. The above examples are only used to help understand the method and its core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of this application, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection of this application.

Claims

1. An impact blade disassembly and assembly device for a pendulum impact tester, used for disassembling and assembling an impact blade (7) in a hammer body (4) of the pendulum impact tester, wherein a guide groove is provided on one side of the hammer body (4), and the impact blade (7) is used for being installed in the hammer body (4) along the guide groove, and characterized in that: The impact blade disassembly and assembly 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): 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 a guide groove is provided, the push-pull rod (2) is used to be movably arranged on the support plate (11), the 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 pressure block (6) is used to be arranged in the guide groove and abut against the side wall of the impact blade (7) for pressing; The push-pull assembly (3) is used to abut against the side wall of the wedge-shaped pressure block (6) and, under the push of the push-pull rod (2), drive the wedge-shaped pressure block (6) to move inward along the guide groove to push the impact blade (7) to the installation position and press the limiting impact blade (7); the push-pull assembly (3) is also used to abut against the side wall of the wedge-shaped pressure block (6) and, under the pull of the push-pull rod (2), drive the wedge-shaped pressure block (6) to move outward along the guide groove to disengage from the impact blade (7).

2. The impact blade disassembly and assembly device of a pendulum impact testing machine according to claim 1, characterized in that: The push-pull assembly (3) comprises a convex push-pull block (31), which is connected to the first end of the push-pull rod (2). A boss is provided on the side of the convex push-pull block (31) away from the push-pull rod (2), and the boss is used to abut against the side wall of the wedge-shaped pressure block (6) and drive the wedge-shaped pressure block (6) to move inward along the guide groove under the push of the push-pull rod (2).

3. The impact blade disassembly and assembly device of a pendulum impact testing machine according to claim 1, characterized in that: The push-pull assembly (3) comprises a concave push-pull block (32), which is connected to the first end of the push-pull rod (2). A limiting groove is provided 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 pressure block (6) through the limiting groove and to hold the wedge-shaped pressure block (6) tightly, and to drive the wedge-shaped pressure block (6) to move outward along the guide groove under the pulling of the push-pull rod (2).

4. The impact blade disassembly and assembly device of a pendulum impact testing machine according to claim 3, characterized in that: The side wall of the limiting groove is made of elastic material, and a protrusion is provided at the opening of the limiting groove. The protrusion 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).

5. The impact blade disassembly and assembly device of a pendulum impact testing machine according to claim 1, characterized in that: The push-pull assembly (3) comprises a telescopic rod (33), a clamping assembly (34) and a mounting plate (35), wherein the mounting plate (35) is arranged at the first end of the push-pull rod (2), the telescopic rod (33) is arranged on a side of the mounting plate (35) away from the push-pull rod (2), 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 pressure block (6) and clamp it to limit its position when the wedge-shaped pressure block (6) is removed, and the telescopic rod (33) is used to extend when the wedge-shaped pressure block (6) is installed to exceed the length of the clamping assembly (34) and then abut against the side wall of the wedge-shaped pressure block (6).

6. The impact blade disassembly and assembly device of a pendulum impact testing machine according to claim 5, characterized in that: 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 against the side walls of the opposite sides of the pressing wedge-shaped pressure block (6) when the push-pull rod (2) moves into the guide groove, and the movable plate (342) is used to abut against the side wall of the limiting wedge-shaped pressure block (6) away from the push-pull rod (2) when the push-pull rod (2) moves out of the guide groove.

7. The impact blade disassembly and assembly device of a pendulum impact testing machine according to claim 5, characterized in that: 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) via the second compression spring (343), and the movable plate (342) is hinged to the second end of the clamping plate (341).

8. The impact blade disassembly and assembly device of a pendulum impact testing machine according to claim 1, characterized in that: The second end of the push-pull rod (2) is provided with a hand wheel (21).

9. The impact blade disassembly and assembly device of a pendulum impact testing machine according to claim 1, characterized in that: The top surface and the ground surface of the support plate (11) are both provided with a limiting groove (12). The support seat (1) also comprises a slider (13) and a limiting plate (16). The slider (13) is slidably arranged in the limiting groove (12). The limiting plate (16) is rotatably arranged on the slider (13) and the limiting plate (16) and the slider (13) are locked and limited by a locking member (8). The limiting plate (16) is used to contact the side wall of the limiting hammer body (4).

10. The impact blade disassembly and assembly device of a pendulum impact testing machine according to claim 9, characterized in that: The support seat (1) also includes a connecting plate (14) and a first compression spring (15); the connecting plate (14) is rotatably arranged on the top of the slider (13) and the connecting plate (14) and the slider (13) are locked and limited by a locking member (8); the first end of the limiting plate (16) is connected to the connecting plate (14) by the first compression spring (15); the second end of the limiting plate (16) is provided with a clamping portion (161) which is perpendicular to the limiting plate (16); the clamping portion (161) is used to abut against the side wall adjacent to the limiting hammer body (4) when the limiting plate (16) abuts against the side wall of the hammer body (4).

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