An electric lifting pendulum low energy impact testing machine

Abstract

The present invention relates to the technical field of energy impact testing machines, and discloses an electric lifting and pendulum low-energy impact testing machine, including a base, a placing table is provided on the base, an impact test block is placed on the placing table, the placing table is composed of a pair of trapezoidal plates distributed front and back, a fixed card block is provided on the top of the placing table, the impact test block is placed in the fixed card block, and an automatic calibration mechanism for the test block that can be automatically raised and lowered is provided at the bottom of the placing table. Compared with the prior art, the beneficial effects of the present invention are: without the need for a manual hand-held calibrator, the calibration block can be automatically moved to the calibration position, and then the impact test piece can be quickly calibrated, the operation is convenient, and the degree of automation of the device is improved; the quick docking mechanism can make the whole process simpler, and only the push-pull rotation pressing block is required to achieve the connection and fixation of the pendulum, which improves the installation efficiency; the release and withdrawal pin and the lifting and fixing of the pendulum can be achieved through a pneumatic withdrawal pin mechanism, which enhances the overall intelligence and automation of the equipment.

Description

Technical Field

[0001] The invention relates to the technical field of energy impact testing machines, in particular to an electric lifting and swinging small energy impact testing machine. Background Art

[0002] The pendulum impact test can be used to assess the toughness of a material, that is, its ability to absorb energy before breaking. This is crucial for evaluating the performance of materials such as metals, plastics, and composites. In the manufacturing industry, pendulum impact testing machines are used to inspect the quality of materials during the production process to ensure that products meet design requirements and industry standards. When developing new materials, pendulum impact testing machines are used to test the impact properties of new materials, helping researchers understand the strengths and weaknesses of the materials and optimize material formulations and processes. Many industries have specific standards and specifications that require materials and products to pass pendulum impact testing. Before obtaining certification, certain products must pass a series of impact tests to prove that they meet safety and performance requirements.

[0003] The existing pendulum energy impact testing machine needs to calibrate the position of the impact test piece before the experiment to ensure the accuracy of the impact position. Then the existing calibration solution is to manually calibrate the position of the impact test piece with a handheld calibration hammer or other instruments. The process is cumbersome and time-consuming, not convenient and has a low degree of automation. In addition, when installing the pendulum, it is usually necessary to connect the pendulum's socket to the rotating shaft, and then use a tool to tighten the fastening bolts to fix the pendulum on the rotating shaft. The operation is inconvenient and the installation efficiency is low, which reduces the overall completion efficiency of the experiment. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the above difficulties and provide an electric lifting pendulum low-energy impact testing machine.

[0005] To solve the above technical problems, the present invention provides a technical solution: an electric lifting pendulum low-energy impact testing machine, comprising a base, a placing table provided on the base, an impact test block placed on the placing table and having protective boxes on both sides thereof, a pendulum table provided at the rear side of the impact test block, a pendulum and a dial provided on the pendulum table, and a motor provided inside the pendulum table for driving the pendulum to rotate;

[0006] The placement table is composed of a pair of trapezoidal plates distributed front and back. A fixed block is provided on the top of the placement table, and the impact test block is placed in the fixed block. The bottom of the placement table is provided with an automatic test block calibration mechanism that can automatically rise and fall.

[0007] The output shaft of the motor is connected to the pendulum shaft, and the pendulum shaft is provided with a clamping column after passing through the pendulum platform, and the pendulum and the clamping column are fixedly connected by a quick docking mechanism;

[0008] The pendulum rod of the pendulum is provided with a docking hook, and the top of the pendulum platform is provided with a pneumatic pin-retracting mechanism which is engaged and separated with the docking hook.

[0009] As an improvement, the automatic calibration mechanism of the test block includes a mounting plate fixed on the base, a rotating drum is provided at one end of the top of the mounting plate, a stepper motor fixed on the mounting plate is provided on one side of the rotating drum, a slide is provided on one side of the stepper motor, a slider is provided in the slide for sliding, the slider is connected to the output shaft of the stepper motor through a power transmission unit, a connecting plate is provided on the slider for sliding connection with the slide, a rotating rack is hinged on the connecting plate, a calibration block is provided on the rotating rack, and connecting racks are provided on the front and rear sides of the rotating rack for rotating between the rotating drum respectively.

[0010] As an improvement, the transmission unit includes a double-groove pulley sleeved on the output shaft of the stepper motor, a pair of slide grooves distributed front and back and cooperating with the slider are provided on the slide, a screw is provided in the slide groove and threadedly connected to the slider, one end of the screw passes through the slider and is sleeved and fixed with a rotating wheel, and the rotating wheels on the front and rear sides are connected to the double-groove pulley through a transmission belt.

[0011] As an improvement, the quick docking mechanism includes a sleeve arranged at the end of the pendulum, a limit strip is provided on the outer wall of the clamping column, a mounting groove is reserved at the front end, a docking groove is reserved on the sleeve to cooperate with the clamping column, and the mounting groove and the docking groove are both provided with connected clamping grooves, a fixed column is slidingly provided in the mounting groove, a conical column is provided at the rear of the fixed column, a pair of clamping plates 1 are extended backward at the rear of the conical column, a pair of clamping plates 2 are provided at the rear of the mounting groove to dock with the clamping plate 1, and a clamping column 1 is slidingly provided in the clamping groove to be slidably connected to the conical column.

[0012] As an improvement, the pneumatic pin-retraction mechanism includes a base plate arranged on the top surface of the pendulum platform, a bent mounting seat is provided on the base plate, a rotating rod is rotatably provided on the front side of the mounting seat, a clamping wheel is fixed on the front part of the rotating rod, the clamping wheel is clamped with the docking hook, and an assembling plate is connected to the front side of the left end of the mounting seat. The assembling plate and the mounting seat are both reserved with a rotating groove formed by splicing and an expansion groove distributed up and down. The expansion grooves are connected with the rotating grooves. A gear is rotatably provided in the rotating groove, and a toothed groove rod that meshes with the gear is slidably provided in the expansion grooves on the upper and lower sides. The end of the toothed groove rod on the lower side is provided with two clamping columns that are clamped and fixed with the clamping wheel. A fixed rod is provided on the mounting seat and the left side of the assembling plate. A cylinder is jointly installed on the fixed rod, and the free end of the piston rod of the cylinder is docked with the toothed groove rod on the upper side.

[0013] As an improvement, the protruding clamping column at the front end of the fixed column is provided with a pressing head, and its circumferential outer wall is provided with a roller pattern to increase friction. A telescopic spring is connected between the rear end of the fixed column and the bottom of the mounting groove. A clamping groove for sliding of clamping plate one is provided between clamping plates two. Clamping column one is a columnar structure with one side tilted and flattened, and the inclined side surface is slidably connected with the conical column.

[0014] As an improvement, a pair of symmetrically distributed arc-shaped clamping strips are provided on the outer side of the clamping wheel. The upper and lower arc-shaped clamping strips are respectively clamped and fixed with the docking hook and the clamping column 2. When the docking hook is clamped and fixed with the arc-shaped clamping strip, the upper end of the toothed rod is fitted with the docking hook, and the clamping column 2 is clamped and fixed with the arc-shaped clamping strip.

[0015] The beneficial effects of the present invention compared with the prior art are:

[0016] 1. By setting up the automatic calibration mechanism of the test block, the calibration block can be automatically moved to the calibration position without manual hand-held calibrator, and then the impact test piece can be quickly calibrated. The operation is convenient and the degree of automation of the device is improved;

[0017] 2. When installing the pendulum on the clamping column, the quick docking mechanism makes the whole process easier. You only need to push, pull and rotate the pressing block to connect and fix the pendulum, which improves the installation efficiency.

[0018] 3. The release and retraction of the pendulum and the fixation of the pendulum can be achieved through the pneumatic retraction mechanism, which has a high degree of integration and does not require manual intervention, thereby improving the completion efficiency of the impact test and enhancing the overall intelligence and automation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The figure is a schematic diagram of the appearance of an electric lifting pendulum low-energy impact testing machine of the present invention.

[0020] Figure 2 It is an exploded view of an electric lifting pendulum low-energy impact testing machine of the present invention.

[0021] Figure 3 This invention is an electric lifting pendulum small energy impact testing machine Figure 2 A magnified schematic diagram of .

[0022] Figure 4 This is a cross-section of an electric lifting pendulum low energy impact testing machine of the present invention Figure 1 .

[0023] Figure 5 The present invention is a schematic diagram of an automatic calibration mechanism for test blocks of an electric lifting and swinging low-energy impact testing machine.

[0024] Figure 6 The utility model is an exploded schematic diagram of an automatic calibration mechanism of a test block of an electric lifting pendulum low-energy impact testing machine of the present invention.

[0025] Figure 7 The present invention is a cross-sectional view of an automatic calibration mechanism for a test block of an electric lifting-swing low-energy impact testing machine.

[0026] Figure 8 This invention is an electric lifting pendulum small energy impact testing machine Figure 7 Enlarged schematic diagram of point B.

[0027] Figure 9 The utility model is a schematic diagram of an explosion of a quick docking mechanism of an electric lifting-swing small-energy impact testing machine of the present invention.

[0028] Figure 10 This invention is an electric lifting pendulum small energy impact testing machine Figure 9 Enlarged schematic diagram of point C.

[0029] Figure 11 This is a cross-section of the quick docking mechanism of an electric lifting and swinging small energy impact testing machine of the present invention Figure 1 .

[0030] Figure 12 This invention is an electric lifting pendulum small energy impact testing machine Figure 11 Enlarged schematic diagram of point D.

[0031] Figure 13 This is a cross-section of the quick docking mechanism of an electric lifting and swinging small energy impact testing machine of the present invention Figure 2 .

[0032] Figure 14 This invention is an electric lifting pendulum small energy impact testing machine Figure 13 Enlarged schematic diagram of point E.

[0033] Figure 15 The present invention is a schematic diagram of the assembly of a pneumatic pin-retracting mechanism of an electric lifting and swinging low-energy impact testing machine.

[0034] Figure 16 The utility model is a schematic diagram of an explosion of a pneumatic pin-retracting mechanism of an electric lifting-swing low-energy impact testing machine of the present invention.

[0035] Figure 17 The present invention is a cross-sectional view of a pneumatic pin-retracting mechanism of an electric lifting-swing low-energy impact testing machine.

[0036] Figure 18 This is a cross-section of an electric lifting pendulum low energy impact testing machine of the present invention Figure 2 .

[0037] Figure 19 This invention is an electric lifting pendulum small energy impact testing machine Figure 18 Enlarged schematic diagram of point F.

[0038] As shown in the figure: 1. Base; 2. Placement table; 21. Impact test block; 22. Fixed clamping block; 3. Protective box; 4. Pendulum table; 41. Pendulum; 42. Dial; 43. Motor; 5. Test block automatic calibration mechanism; 51. Mounting plate; 52. Rotating drum; 53. Stepping motor; 54. Slide; 55. Slider; 56. Transmission unit; 561. Double-groove groove wheel; 562. Slide; 563. Screw; 564. Rotating wheel; 565. Transmission belt; 57. Connecting plate; 58. Rotating rack; 59. Calibration block; 510. Connecting frame; 6. Pendulum shaft; 7. Clamping column; 8. Quick docking mechanism; 81. Sleeve ;82. Limiting strip;83. Mounting slot;84. Docking slot;85. Fixing slot;86. Fixed column;861. Pressing head;862. Roller pattern;863. Telescopic spring;87. Conical column;88. Card plate one;89. Card plate two;810. Card column one;9. Docking hook;10. Pneumatic ejection mechanism;101. Bottom plate;102. Mounting seat;103. Rotating rod;104. Card wheel;1041. Arc-shaped card strip;105. Assembly plate;106. Rotating slot;107. Telescopic slot;108. Gear;109. Toothed rod;1010. Card column two;1011. Fixed rod;1012. Cylinder. DETAILED DESCRIPTION

[0039] The present invention will be described in further detail below with reference to the accompanying drawings.

[0040] Combined with attachment Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 and attached Figure 9 As shown, an electric lifting pendulum low-energy impact testing machine includes a base 1, a placement table 2 is provided on the base 1, an impact test block 21 is placed on the placement table 2, and protective boxes 3 are provided on the left and right sides of the placement table 2. A pendulum table 4 is provided on the rear side of the impact test block 21, and a pendulum 41 and a dial 42 are provided on the pendulum table 4. A reading pointer is provided on the dial 42. A motor 43 for driving the pendulum 41 to rotate is provided in an equipment box above the pendulum table 4.

[0041] The placing table 2 is composed of a pair of trapezoidal plates distributed front and back. A fixed block 22 is provided on the top of the placing table 2, and the impact test block 21 is placed in the fixed block 22. The bottom of the placing table 2 is provided with an automatic test block automatic calibration mechanism 5 that can automatically rise and fall; the output shaft of the motor 43 is connected to the pendulum shaft 6, and the pendulum shaft 6 is provided with a clamping column 7 after passing through the pendulum table 4. The pendulum 41 is fixedly connected to the clamping column 7 by a quick docking mechanism 8; the pendulum rod of the pendulum 41 is provided with a docking hook 9, and the top of the pendulum table 4 is provided with a pneumatic pin withdrawal mechanism 10 that cooperates with the docking hook 9 to be clamped and separated.

[0042] The working principle of the present invention is as follows: through the automatic calibration mechanism 5 of the test block, the impact position of the impact test block 21 can be automatically calibrated, and there is no need to manually use a calibration hammer for calibration, which greatly improves the convenience of calibrating the impact test block 21 and improves the efficiency of completing the impact test; then the pendulum 41 can be quickly fixed through the quick docking mechanism 8, shortening the time required to fix the pendulum 41, which is convenient and efficient; when it is necessary to release the pendulum and withdraw the pin, the pendulum 41 can be automatically fixed and separated through the pneumatic withdrawal mechanism 10. After the pendulum 41 impacts the impact test block 21, the broken impact test block 21 is scattered in the protective box 3, which can effectively protect the safety of the staff, and finally the reading on the dial 42 is read to complete the energy impact test.

[0043] Combined with attachment Figure 2 , Attachment Figure 3 , Attachment Figure 5 , Attachment Figure 6 , Attachment Figure 7 and attached Figure 8 As shown, the test block automatic calibration mechanism 5 includes a mounting plate 51 fixed on the base 1, a rotating drum 52 is provided at one end of the top of the mounting plate 51, a stepping motor 53 fixed on the mounting plate 51 is provided on one side of the rotating drum 52, a slide 54 is provided on one side of the stepping motor 53, a slider 55 is provided for sliding inside the slide 54, the slider 55 is connected to the output shaft of the stepping motor 53 through a transmission unit 56, a connecting plate 57 is provided on the slider 55 for sliding connection with the slide 54, a rotating rack 58 is hinged on the connecting plate 57, a calibration block 59 is provided on the rotating rack 58, and connecting racks 510 are provided on the front and rear sides of the rotating rack 58 for rotating between the rotating drum 52.

[0044] The transmission unit 56 includes a double-groove sheave 561 sleeved on the output shaft of the stepper motor 53, and a pair of slide grooves 562 distributed front and back and cooperating with the slider 55 are provided on the slide 54. A screw 563 is provided in the slide groove 562 and is threadedly connected to the slider 55. One end of the screw 563 passes through the slider 55 and is sleeved and fixed with a rotating wheel 564. The rotating wheels 564 on the front and rear sides are connected to the double-groove sheave 561 through a transmission belt 565.

[0045] Working principle of the test block automatic calibration mechanism 5: The impact test block 21 is generally provided with a calibration groove in the middle thereof. Before calibrating the impact test block 21, the rotating frame 58 is in a horizontal position. When calibration is required, the stepper motor 53 is driven to work, and the output shaft of the stepper motor 53 drives the double-groove groove wheel 561 to rotate, thereby driving the front and rear wheels 564 to rotate through the transmission belt 565, and the screw 563 rotates accordingly. Since the screw 563 is threadedly connected to the slider 55, the rotation of the screw 563 will drive the slider 55 to move in the slide groove 562, thereby driving the connecting plate 57 to move. Since the connecting plate 57 is hinged to the rotating frame 58, and a connecting frame 510 is provided for rotation between the front and rear sides of the rotating frame 58 and the rotating drum 52, the rotating frame 58 will flip from a horizontal state to a vertical state, and the calibration block 59 fixed on the side of the rotating frame 58 faces the impact test block 21. At this time, the calibration groove in the middle of the impact test block 21 is engaged with the docking ridge on the calibration block 59. At this time, the position of the impact test block 21 is the accurate position of the impact test, and the calibration is completed.

[0046] Combined with attachment Figure 1 , Attachment Figure 9 , Attachment Figure 10 , Attachment Figure 11 , Attachment Figure 12 , Attachment Figure 13 and attached Figure 14 As shown, the quick docking mechanism 8 includes a sleeve 81 arranged at the end of the pendulum 41, a limit strip 82 is provided on the outer wall of the clamping column 7, a mounting groove 83 is reserved at the front end, a docking groove 84 is reserved on the sleeve 81 for cooperating with the clamping column 7, and the mounting groove 83 and the docking groove 84 are both provided with a connecting clamping groove 85, a fixed column 86 is slidably provided in the mounting groove 83, the front end of the fixed column 86 protrudes from the clamping column 7 and is provided with a pressing head 861, and its circumferential outer wall is provided with a roller pattern 862 that increases friction, and the rear end of the fixed column 86 is connected to the mounting groove 85. A telescopic spring 863 is connected between the bottom of the mounting slot 83, a conical column 87 is provided at the rear of the fixing column 86, and a pair of clamping plates 88 are extended backward at the rear of the conical column 87. A pair of clamping plates 89 are provided at the rear of the mounting slot 83 for docking with the clamping plates 88, and a clamping slot for sliding the clamping plates 88 is provided between the clamping plates 89. A clamping column 810 slidably connected to the conical column 87 is provided in the fixing slot 85. The clamping column 810 is a columnar structure with one side tilted and flattened, and the inclined side surface is slidably connected with the conical column 87.

[0047] The working principle of the quick docking mechanism 8 to quickly fix the pendulum 41 to the clamping column 7 is as follows: when the pendulum 41 needs to be installed on the clamping column 7, first the docking groove 84 on the sleeve 81 is matched with the clamping column 7 and the limit strip 82, and then the pressing head 861 is pressed downward to make the conical column 87 slide against the clamping column 1 810, and the clamping column 1 810 moves into the fixing groove 85 on the docking groove 84. During this process, the clamping plate 1 88 moves through the clamping groove to the rear of the clamping plate 2 89. At this time, the pressing head 861 is rotated by the roller pattern 862, so that the clamping plate 1 88 rotates and cooperates with the clamping plate 2 89 to achieve clamping and fixing, thereby realizing a quick fixed connection between the pendulum 41 and the clamping column 7.

[0048] Combined with attachment Figure 1 , Attachment Figure 15 , Attachment Figure 16 , Attachment Figure 17 , Attachment Figure 18 and attached Figure 19 As shown, the pneumatic pin-retracting mechanism 10 includes a bottom plate 101 arranged on the top surface of the pendulum platform 4, a bent mounting seat 102 is provided on the bottom plate 101, a rotating rod 103 is rotatably provided on the front side of the mounting seat 102, a clamping wheel 104 is fixed on the front of the rotating rod 103, and the clamping wheel 104 is clamped with the docking hook 9. The front side of the left end of the mounting seat 102 is connected to an assembling plate 105, and the assembling plate 105 and the mounting seat 102 are both reserved with a rotating groove 106 formed by splicing and telescopic grooves 107 distributed above and below. The telescopic groove 107 They are all connected with the rotating groove 106, and a gear 108 is rotatably provided in the rotating groove 106. Toothed rods 109 meshing with the gear 108 are slidably provided in the telescopic grooves 107 on the upper and lower sides. The end of the toothed rod 109 on the lower side is provided with a clamping column 2 1010 that cooperates with the clamping wheel 104 to be fixed. The mounting seat 102 and the left side of the assembly plate 105 are both provided with a fixing rod 1011, and a cylinder 1012 is jointly installed on the fixing rod 1011, and the free end of the piston rod of the cylinder 1012 is docked with the toothed rod 109 on the upper side. A pair of symmetrically distributed arc-shaped clamping strips 1041 are provided on the circumferential outer side of the clamping wheel 104. The upper and lower arc-shaped clamping strips 1041 are clamped and fixed to the docking hook 9 and the second clamping column 1010 respectively. When the docking hook 9 is clamped and fixed to the arc-shaped clamping strip 1041, the end of the upper toothed rod 109 is fitted with the docking hook 9, and the second clamping column 1010 is clamped and fixed to the arc-shaped clamping strip 1041.

[0049] The working principle of the pneumatic pin-removing mechanism 10 for pin-removing and automatically fixing the pendulum 41 is as follows: when the pendulum 41 completes the swing and needs to be fixed, the motor 43 drives the pendulum 41 to lift and swing, and the docking hook 9 on the pendulum 41 is pressed against the arc-shaped clamping strip 1041 on the clamping wheel 104, driving the clamping wheel 104 to rotate until the end of the docking hook 9 touches the upper toothed rod 109, driving the upper toothed rod 109 to move toward the direction of the cylinder 1012, and the gear 108 rotates accordingly, driving the right end of the lower toothed rod 109 to move toward the clamping wheel 104, until the clamping column 1010 presses the arc-shaped clamping strip 1041 on the clamping wheel 104. The arc-shaped clamping strip 1041 is clamped and fixed, and the clamping wheel 104 is in a fixed state and will not rotate, so the docking hook 9 and the clamping wheel 104 are clamped; when the pendulum 41 needs to be unpinned and swung, the cylinder 1012 is driven to work, and the telescopic shaft of the cylinder 1012 drives the upper toothed rod 109 to move to the right, and the gear 108 rotates accordingly, driving the lower toothed rod 109 to move to the left. At this time, the clamping column 1010 is disengaged from the arc-shaped clamping strip 1041 on the clamping wheel 104, and the clamping wheel 104 rotates accordingly until the docking hook 9 is disengaged from the arc-shaped clamping strip 1041, and the pendulum 41 is unpinned and swings freely.

[0050] It is particularly important to note that in order for the clamping column 810 to always maintain a sliding connection with the conical column 87, a limit block is provided on the clamping column 810, and a limit groove corresponding to the sliding connection is provided on the fixing groove 85. In this way, the clamping column 810 can always maintain a sliding connection with the conical column 87, and the clamping column 810 will not fall when the pendulum 41 is not fixed.

[0051] During the specific implementation of the present invention: when it is necessary to perform an energy impact test on the impact test block 21, first, the calibration block 59 is lifted and moved to the calibration position through the test block automatic calibration mechanism 5, and then the impact test block 21 is placed on the fixed block 22, and cooperates with the calibration block 59 to realize the calibration of the impact position; then the pendulum 41 is installed on the clamping column 7 through the quick docking mechanism 8, and then the driving motor 43 is used to drive the pendulum 41 to rotate and swing up, and the pendulum 41 is automatically clamped and fixed by the pneumatic retraction mechanism 10, and then the swing impact test can be carried out, and the pendulum 41 is automatically lowered after the pin is removed by driving the cylinder 1012 to impact the impact test block 21 placed on the fixed block 22, and the broken impact test block 21 is scattered in the protective box 3 to avoid splashing to the surroundings, which can effectively protect the safety of the staff, and finally the reading on the dial 42 is read to complete the energy impact test.

[0052] It is worth mentioning that the motor 43, the stepper motor 53 and the cylinder 1012 in the present invention are all existing devices well known to those skilled in the art, and their circuit connection methods and use control methods are all existing technologies.

[0053] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above and, without departing from the purpose of the present invention, designs structures and embodiments similar to the technical solution without creatively designing, they shall fall within the scope of protection of the present invention.

Claims

1. An electric lifting pendulum low energy impact testing machine, comprising a base (1), a placing table (2) being provided on the base (1), an impact test block (21) being placed on the placing table (2) and having protection boxes (3) on both the left and right sides, a pendulum table (4) being provided at the rear side of the impact test block (21), a pendulum (41) and a dial (42) being provided on the pendulum table (4), a motor (43) being provided in the pendulum table (4) for driving the pendulum (41) to rotate, characterized in that: The placement table (2) is composed of a pair of trapezoidal plates arranged front and back, a fixed block (22) is provided on the top of the placement table (2), the impact test block (21) is placed in the fixed block (22), and an automatic test block calibration mechanism (5) that can be automatically raised and lowered is provided on the bottom of the placement table (2); The test block automatic calibration mechanism (5) comprises a mounting plate (51) fixed on a base (1), a rotating drum (52) being provided at one end of the top of the mounting plate (51), a stepping motor (53) fixed on the mounting plate (51) being provided on one side of the rotating drum (52), a slide frame (54) being provided on one side of the stepping motor (53), a slider (55) being slidably provided in the slide frame (54), the slider (55) being power-connected to an output shaft of the stepping motor (53) via a transmission unit (56), a connecting plate (57) being slidably connected to the slide frame (54) being provided on the slide frame (55), a rotating rack (58) being hingedly connected to the connecting plate (57), a calibration block (59) being provided on the rotating rack (58), and connecting frames (510) being rotatably provided on the front and rear sides of the rotating rack (58) respectively connected to the rotating drum (52); The output shaft of the motor (43) is connected to a pendulum rotating shaft (6), and the pendulum rotating shaft (6) is provided with a clamping column (7) after passing through the pendulum platform (4), and the pendulum (41) and the clamping column (7) are clamped and connected via a quick docking mechanism (8); The quick docking mechanism (8) comprises a sleeve (81) arranged at the end of the pendulum (41), a limit strip (82) is provided on the outer wall of the clamping column (7), a mounting groove (83) is reserved at the front end, a docking groove (84) matched with the clamping column (7) is reserved on the sleeve (81), a connecting clamping groove (85) is provided in the mounting groove (83) and the docking groove (84), a fixing column (86) is slidably provided in the mounting groove (83), a conical column (87) is provided at the rear of the fixing column (86), a pair of clamping plates (88) are extended backward at the rear of the conical column (87), a pair of clamping plates (89) are provided at the rear of the mounting groove (83) and are docked with the clamping plate (88), and a clamping column (810) slidably connected with the conical column (87) is slidably provided in the clamping groove (85); The pendulum (41) has a pendulum rod provided with a docking hook (9), and the top of the pendulum platform (4) is provided with a pneumatic pin-removing mechanism (10) that cooperates with the docking hook (9) for clamping and separating. The pneumatic pin-retracting mechanism (10) comprises a bottom plate (101) arranged on the top surface of the pendulum platform (4), a bent mounting seat (102) being arranged on the bottom plate (101), a rotating rod (103) being rotatably arranged on the front side of the mounting seat (102), a clamping wheel (104) being sleeved and fixed on the front part of the rotating rod (103), the clamping wheel (104) being clamped with the docking hook (9), an assembling plate (105) being connected to the front side of the left end of the mounting seat (102), the assembling plate (105) and the mounting seat (102) both being reserved with a rotating groove (106) formed by splicing and telescopic grooves (107) distributed up and down, the telescopic grooves (107) ) are both connected to the rotating groove (106), a gear (108) is rotatably provided in the rotating groove (106), toothed rods (109) meshing with the gear (108) are slidably provided in the telescopic grooves (107) on the upper and lower sides, and the end of the toothed rod (109) on the lower side is provided with a clamping column (1010) that is fixedly engaged with the clamping wheel (104), and the mounting seat (102) and the assembly plate (105) are both provided with a fixing rod (1011) on the left side, and a cylinder (1012) is installed on the fixing rod (1011), and the free end of the piston rod of the cylinder (1012) is connected to the toothed rod (109) on the upper side.

2. The electric pendulum low energy impact testing machine according to claim 1, characterized in that: The transmission unit (56) comprises a double-groove sheave (561) sleeved on an output shaft of a stepping motor (53); a pair of slide grooves (562) arranged front and rear and cooperating with a slider (55) are provided on a slide frame (54); a screw rod (563) threadedly connected to the slider (55) is provided in the slide groove (562); one end of the screw rod (563) passes through the slider (55) and is sleeved and fixed with a rotating wheel (564); the rotating wheels (564) on both sides are connected to the double-groove sheave (561) by a transmission belt (565).

3. The electric pendulum low energy impact testing machine according to claim 1, characterized in that: The front end of the fixed column (86) protrudes from the clamping column (7) and is provided with a pressing head (861), and its circumferential outer wall is provided with a roller pattern (862) for increasing friction force. A telescopic spring (863) is connected between the rear end of the fixed column (86) and the bottom of the installation groove (83). A clamping groove for sliding the first clamping plate (88) is provided between the second clamping plate (89). The first clamping column (810) is a columnar structure with one side inclined and flattened, and the inclined side surface is slidably connected with the conical column (87).

4. The electric pendulum low energy impact testing machine according to claim 1, characterized in that: A pair of symmetrically distributed arc-shaped clamping strips (1041) are provided on the outer side of the clamping wheel (104) in the circumferential direction. The upper and lower arc-shaped clamping strips (1041) are respectively clamped and fixed to the docking hook (9) and the second clamping column (1010). When the docking hook (9) is clamped and fixed to the arc-shaped clamping strip (1041), the end of the toothed rod (109) on the upper side is in contact with the docking hook (9), and the second clamping column (1010) is clamped and fixed to the arc-shaped clamping strip (1041).

Images