Impact test device

Abstract

The utility model relates to the technical field of battery and product shell test equipment, and discloses an impact test device, which comprises a base provided with a test bench, and the test bench is provided with a test center point; the supporting frame is assembled on the base; the positioning pipe is provided with a center hole, and the central axis of the center hole passes through the test center point; the baffle has an opening state for opening the central hole and a closing state for at least partially closing the central hole; the driver is in transmission connection with the baffle; the limiting sensor is used for sensing one end, close to the test bed, of the test ball passing through the positioning pipe; and light emitted by the laser positioner passes through the test center point. The laser positioner can point out the test position of a test object, when the test ball passes through the positioning pipe, the driver adjusts the baffle to be switched to the closed state to close the center hole, no space for secondary bounce exists between the test table and the baffle, the test ball is prevented from secondarily impacting the test object after bounce, and the accuracy of test data is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of battery and product shell testing equipment, in particular to an impact testing device. Background Art

[0002] When doing mechanical testing on batteries and electronic products, it is necessary to evaluate the overall structural strength of the sample and conduct high-intensity impact tests on specific areas of the sample (non-corner locations) to determine whether the sample structure meets user requirements.

[0003] The battery casing is tested using a falling ball impact test method. According to the standard, a smooth solid steel ball with a diameter of 50mm±1mm and a mass of 500g±25g is used to perform the following test: For the horizontal surface of the casing, the steel ball falls freely from a stationary position at a vertical distance of 1300mm±10mm from the sample.

[0004] There are no detailed regulations for the specific test details. The conventional practice is to manually lift a smooth solid steel ball that meets the standard requirements to the required height, and then release the steel ball to complete the test. However, there are two problems in this conventional test process. One is that it is impossible to accurately hit the sample test area, resulting in position deviation. The other is that after the steel ball hits the sample, if the steel ball rebounds too high, it will hit the sample a second time, resulting in distortion of the sample test data, which is not conducive to the test evaluation of the sample. Utility Model Content

[0005] The utility model aims to provide an impact test device to solve the problem in the prior art that when a battery shell is impact tested, a steel ball cannot accurately hit a sample test area, and secondary impact causes distortion of test data.

[0006] In order to achieve the above object, the utility model provides an impact test device, comprising:

[0007] A base, the base having a test bench for arranging a test object, the test bench having a test center point;

[0008] A support frame, the support frame is assembled on the base;

[0009] A positioning tube, the positioning tube is fixedly mounted on the support frame, the positioning tube has a center hole, and the center axis of the center hole passes through the test center point;

[0010] A baffle plate, the baffle plate is arranged at one end of the positioning tube close to the base, the baffle plate has an open state in which the center hole is opened to allow the test ball to pass through, and a closed state in which the center hole is at least partially closed to block the test ball;

[0011] A driver, the driver is drivingly connected to the baffle, and the driver is used to drive the baffle to open or close the center hole;

[0012] A limit sensor, the limit sensor is mounted on the support frame, the limit sensor is used to sense the test ball passing through the positioning tube close to one end of the test bench, and the limit sensor is electrically connected to the driver;

[0013] A laser locator is mounted on the support frame, the laser locator faces the test bench, and the light emitted by the laser locator passes through the test center point.

[0014] Preferably, the baffle is movably assembled on one end of the positioning tube along a direction perpendicular to the central axis of the positioning tube, and the baffle has a through hole for the test ball to pass through.

[0015] Preferably, the driver is fixedly mounted on the positioning tube, the driver is non-rotatably connected to one end of the baffle away from the through hole, the driver is used to drive the baffle to rotate, and the rotation centerline of the baffle is parallel to the central axis of the center hole and arranged at intervals.

[0016] Preferably, the support frame has a first adjustment hole, the first adjustment hole extends along the central axis direction of the positioning tube, the limit sensor is assembled in the first adjustment hole, and the height of the limit sensor is located between the baffle and the test bench.

[0017] Preferably, the support frame has a second adjustment hole, the second adjustment hole extends along the central axis direction of the positioning tube, and the laser locator is assembled in the second adjustment hole.

[0018] Preferably, it further comprises a ruler, which is fixedly mounted on the outer wall surface of the positioning tube and extends along the central axis direction of the positioning tube.

[0019] Preferably, it also includes a hanging seat, which is used to suspend the test ball. The hanging seat is assembled on the bracket and is located at one end of the positioning tube away from the test bench.

[0020] Preferably, the suspension seat comprises a rope drum and a fixing hook fixedly assembled with the rope drum, the fixing hook is assembled on the supporting frame, and the rope drum is used for winding the suspension rope.

[0021] Preferably, the support frame includes a column, a cross bar and a support rod. There are several columns, one end of each column is fixedly assembled on the base, and the other end is connected through the cross bar. The support rod is arranged parallel to the cross bar and spaced apart. The support rod is located between the cross bar and the base. The support rod is fixedly connected to the column, the positioning tube is fixedly assembled on the support rod, and the limit sensor and the laser locator are both assembled on the column.

[0022] Preferably, it also includes a control system, which includes a start button, an adjustment panel and a power switch, and the start button, the adjustment panel and the power switch are all arranged on the base, and the adjustment panel is electrically connected to the laser locator, the limit sensor and the driver.

[0023] Compared with the prior art, the impact test device of the utility model embodiment has the following beneficial effects: the central axis of the center hole of the positioning tube on the support frame passes through the test center point of the test bench, and the test ball can drop to the test center point after free falling from the positioning tube. When performing the impact test, the light emitted by the laser locator passes through the test center point, which can clearly point out the test position of the test object, so that the test object, the test center point, and the falling point of the test ball coincide with each other, ensuring that the test ball accurately hits the sample test area; at the same time, a baffle is arranged at one end of the positioning tube, and the driver can control the baffle to open or close the center hole. At the beginning of the test, the baffle is in an open state, and the center hole is open. When the limit sensor senses that the test ball passes through one end of the positioning tube close to the test bench, the limit sensor transmits an electrical signal to the driver, and the driver adjusts the baffle to switch to a closed state to close the center hole. At this time, there is no space for the test ball to bounce back again between the test bench and the baffle, thereby avoiding the test ball from hitting the test object again after rebounding, thereby ensuring the accuracy of the test data. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the impact test device of the utility model;

[0025] Figure 2 yes Figure 1 A schematic diagram of the state of the impact test device when the baffle is in a closed state;

[0026] Figure 3 yes Figure 1 Schematic diagram of the state of the impact test device when the baffle is in the open state.

[0027] In the figure, 1. base, 11. test bench, 12. test center point, 2. support frame, 21. first adjustment hole, 22. second adjustment hole, 23. column, 24. cross bar, 25. support rod, 3. positioning tube, 31. center hole, 4. baffle, 41. perforation, 5. driver, 6. limit sensor, 7. laser locator, 8. ruler, 9. hanger, 91. rope drum, 92. fixing hook, 10. control system, 101. start button, 102. adjustment panel, 103. power switch. DETAILED DESCRIPTION

[0028] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0029] A preferred embodiment of the impact test device of the utility model is as follows Figures 1 to 3 As shown, the impact test device includes a base 1, a support frame 2, a positioning tube 3, a baffle 4, a driver 5, a limit sensor 6 and a laser locator 7. The base 1 is the base structure of the impact test device, the support frame 2 is assembled on the base 1, and the positioning tube 3, the baffle 4, the driver 5, the limit sensor 6 and the laser locator 7 are all assembled on the support frame 2 to constitute the main structure of the device.

[0030] The base 1 is a rectangular structure, and has a test bench 11, which is used to arrange the test object. In this embodiment, the test object is the battery housing sample to be tested. The test bench 11 has a test center point 12, which is the impact position of the test ball during the impact test and is also the arrangement position of the test object on the test bench 11.

[0031] The support frame 2 is assembled on the base 1. The support frame 2 is located on the upper side of the test center point of the base 1. The support frame 2 is used to assemble various test equipment. The positioning tube 3 is vertically fixedly assembled on the support frame 2. The positioning tube 3 has a center hole 31. The center hole 31 extends in the vertical direction. The center axis of the center hole 31 passes through the test center point 12. The positioning tube 3 is used for the test ball to fall freely from the center hole 31. The center axis of the center hole 31 of the positioning tube 3 passes through the test center point 12, which can ensure that the test ball falls at the position of the test center point 12 when falling from the center hole 31, and ensure that the test ball impacts and hits the test object, so as to locate the landing point of the test ball.

[0032] In this embodiment, the test ball is a steel ball, which is a smooth solid steel ball with a diameter of 50 mm ± 1 mm and a mass of 500 g ± 25 g. The test ball passes through the center hole 31 from the top of the positioning tube 3 and then falls from the bottom of the positioning tube 3. The positioning tube 3 is made of transparent acrylic material with good light transmittance, so that the test personnel can directly observe the falling process of the test ball. The inner diameter of the positioning tube 3 is 52 mm ± 1 mm, which can ensure that the steel ball can fall freely smoothly and ensure accuracy.

[0033] The baffle 4 is fixedly arranged at one end of the positioning tube 3 close to the base 1. The baffle 4 is used to open or close the bottom end of the center hole 31. The baffle 4 has an open state and a closed state. The driver 5 is in transmission connection with the baffle 4. The driver 5 can drive the baffle 4 to move when working, and drive the baffle 4 to open or close the center hole 31, so that the baffle 4 moves between the open state and the closed state.

[0034] When the baffle 4 is in the open state, the baffle 4 moves to one side of the center hole 31 to allow the test ball to pass through the center hole 31 of the positioning tube 3 to impact the test object; when the baffle 4 is in the closed state, the baffle 4 at least partially closes the center hole 31 to stop the test ball and prevent the test ball from rebounding into the positioning tube 3 after impacting the test object.

[0035] The height of the positioning tube 3 on the support frame 2 is adjustable, and the adjustment process can be done manually or electrically. When the positioning tube 3 is assembled on the support frame 2, a distance is left between the upper end and the top of the support frame 2, and between the lower end and the test bench 11. The distance left at the upper end of the positioning tube 3 is used to install and fix the test ball, and the distance left at the lower end of the positioning tube 3 is used to assemble the baffle 4, and is also used to accommodate the test ball and the test object. In this embodiment, the distance left at the lower end is the height of the test object plus the diameter of the test ball, plus the allowable error distance, where the error distance is 5mm±1mm.

[0036] The limit sensor 6 is mounted on the support frame 2, and the limit sensor 6 is electrically connected to the driver 5. The limit sensor 6 is used to sense the end of the test ball passing through the positioning tube 3 close to the test bench 11. The baffle 4 is in an open state before the test. When the test ball passes through the bottom of the positioning tube 3, the limit sensor 6 transmits the sensed signal to the driver 5, and the driver 5 controls the baffle 4 to move to a closed state to prevent the test ball from rebounding into the positioning tube 3 and then falling onto the test object to form a secondary impact.

[0037] The laser locator 7 is mounted on the support frame 2, and the laser locator 7 is arranged toward the test bench 11, and the light emitted by the laser locator 7 passes through the test center point 12 on the test bench 11. The laser locator 7 emits laser light to illuminate the test center point 12 of the test bench 11, which is used to accurately point out the exact position of the steel ball when it falls and impacts.

[0038] When the device is in the initial state, the position indicated by the laser light of the laser locator 7 is the test center point 12, which is also the intersection of the central axis of the transparent positioning tube 3 and the plane of the test object. When testing is required, the laser locator 7 is adjusted upward by a certain distance according to the height of the battery shell of the test object. The adjustment distance is consistent with the height of the battery shell, which can ensure that the laser locator 7 accurately points out the falling impact position of the test ball, and then the test object is placed on the test bench 11, and the position of the test object is adjusted according to the position of the laser light to ensure that the test ball can fall on the test object.

[0039] The central axis of the center hole 31 of the positioning tube 3 on the support frame 2 of the impact test device passes through the test center point 12 of the test bench 11. The test ball can fall to the test center point 12 after free falling from the positioning tube 3. When performing the impact test, the light generated by the laser locator 7 passes through the test center point 12, which can clearly point out the test position of the test object, so that the test object, the test center point 12, and the falling point of the test ball coincide with each other, ensuring that the test ball accurately hits the sample test area; at the same time, a baffle 4 is arranged at one end of the positioning tube 3, and the driver 5 can control the baffle 4 to open or close the center hole 31. At the beginning of the test, the baffle 4 is in an open state, and the center hole 31 is open. When the limit sensor 6 senses that the test ball passes through one end of the positioning tube 3 close to the test bench 11, the limit sensor 6 transmits an electrical signal to the driver 5, and the driver 5 adjusts the baffle 4 to switch to a closed state to close the center hole 31. At this time, there is no space for the test ball to bounce back again between the test bench 11 and the baffle 4, which prevents the test ball from hitting the test object again after rebounding, thereby ensuring the accuracy of the test data.

[0040] Preferably, the baffle 4 is movably assembled on one end of the positioning tube 3 along a direction perpendicular to the central axis of the positioning tube 3 , and the baffle 4 has a through hole 41 for the test ball to pass through.

[0041] The baffle 4 moves in a direction perpendicular to the central axis of the positioning tube 3, that is, moves in the direction of the cross section of the positioning tube 3, which simplifies the movement form of the baffle 4. It can move along the radial straight line of the positioning tube 3, and can also rotate on the cross section to change its state, thereby simplifying the movement mode of the baffle 4.

[0042] The baffle plate 4 is provided with a through hole 41 , which can ensure that the test ball can pass through, and can also ensure that the baffle plate 4 only needs to move a part of its position to change its state, thereby reducing the moving stroke of the baffle plate 4 .

[0043] Preferably, the driver 5 is fixedly mounted on the positioning tube 3, and is non-rotatably connected to one end of the baffle 4 away from the through hole 41. The driver 5 is used to drive the baffle 4 to rotate, and the rotation centerline of the baffle 4 is parallel to the central axis of the center hole 31 and arranged at intervals.

[0044] The driver 5 drives the baffle 4 to rotate and change the state of the baffle 4, which can reduce the active stroke of the driver 5, thereby reducing the assembly space of the driver 5. In this embodiment, the driver 5 can be an electric motor, and the baffle 4 is fixedly assembled on the output shaft of the driver 5 to simplify the assembly form between the driver 5 and the baffle 4.

[0045] The driver 5 can drive the baffle 4 to rotate. When the driver 5 drives the baffle 4 to rotate to the outside of the positioning tube 3, the baffle 4 is in an open state. When the driver 5 drives the baffle 4 to rotate into the center hole 31 of the positioning tube 3, the baffle 4 is in a closed state.

[0046] Preferably, the support frame 2 has a first adjustment hole 21 extending along the central axis of the positioning tube 3 , and the limit sensor 6 is assembled in the first adjustment hole 21 . The height of the limit sensor 6 is located between the baffle 4 and the test bench 11 .

[0047] When the test object is different, the assembly height of the positioning tube 3 is different. The limit sensor 6 is assembled in the first adjustment hole 21 of the support frame 2. Since the first adjustment hole 21 extends along the central axis direction of the positioning tube 3, by adjusting the position of the limit sensor 6 in the first adjustment hole 21, the axial relative position of the limit sensor 6 and the positioning tube 3 can be adjusted, that is, the height of the limit sensor 6 is adjusted to ensure that the limit sensor 6 is located between the baffle 4 and the test bench 11 to detect that the test ball passes through the bottom end of the positioning tube 3.

[0048] Preferably, the support frame 2 has a second adjustment hole 22 , the second adjustment hole 22 extends along the central axis direction of the positioning tube 3 , and the laser locator 7 is assembled in the second adjustment hole 22 .

[0049] Before the test begins and when the test object is assembled, it is necessary to adjust the height position of the laser locator 7 on the support frame 2. A second adjustment hole 22 is provided on the support frame 2, and the laser locator 7 is assembled in the second adjustment hole 22. By adjusting the position of the laser locator 7 in the second adjustment hole 22, the height of the laser locator 7 can be adjusted to match test objects of different thicknesses and accurately indicate the falling position of the test ball.

[0050] Preferably, a scale 8 is further included, which is fixedly mounted on the outer wall surface of the positioning tube 3 and extends along the central axis direction of the positioning tube 3 .

[0051] A ruler 8 is installed on the outer wall surface of the positioning tube 3. The test personnel can adjust the assembly height of the positioning tube 3 on the support frame 2 according to the ruler 8 so that the bottom space of the positioning tube 3 meets the test requirements. At the same time, the initial height of the test ball can also be judged according to the ruler 8 to ensure that the landing height of the test ball meets the test requirements.

[0052] Preferably, it also includes a hanging seat 9 for hanging the test ball. The hanging seat 9 is assembled on the supporting frame 2 , and the hanging seat 9 is located at one end of the positioning tube 3 away from the test bench 11 .

[0053] The hanger 9 is assembled on the support frame 2, and the test ball can be fixed by the hanger 9, so that the test ball is suspended and fixed above the positioning tube 3, and the test ball is automatically released by the hanger 9, thereby realizing the automated test.

[0054] Preferably, the suspension seat 9 comprises a rope drum 91 and a fixing hook 92 fixedly assembled with the rope drum 91, the fixing hook 92 is assembled on the supporting frame 2, and the rope drum 91 is used for winding the suspension rope.

[0055] The rope drum 91 can be wound with a hanging rope, which can be used to hang the test ball. The height of the hanging rope can be controlled by the rope drum 91, and the relative height between the test ball and the test object can be determined in combination with the scale 8 on the positioning tube 3 to meet the height required by the standard test. When the test is in progress, the rope drum 91 is in a completely relaxed state, and all the steel ropes can be released without being affected to impact the test sample with the test ball. The fixing hook 92 is used to fix the rope drum 91, and can also fix the hanging rope. When the height of the test ball is determined, the fixing hook 92 is closed to clamp and fix the hanging rope to ensure that the overall height of the test ball remains unchanged.

[0056] Preferably, the support frame 2 includes a column 23, a cross bar 24 and a support rod 25. There are several columns 23, one end of each column 23 is fixedly assembled on the base 1, and the other end is connected through the cross bar 24. The support rod 25 is arranged parallel to the cross bar 24 and spaced apart. The support rod 25 is located between the cross bar 24 and the base 1. The support rod 25 is fixedly connected to the column 23, the positioning tube 3 is fixedly assembled on the support rod 25, and the limit sensor 6 and the laser locator 7 are both assembled on the column 23.

[0057] The support frame 2 is a frame structure formed by a column 23, a cross bar 24 and a support bar 25, which simplifies the structural form of the support frame 2. In this embodiment, the first adjustment hole 21 and the second adjustment hole 22 are both provided on the column 23, the cross bar 24 can be used to fix the assembly hanger 9, the support bar 25 is used to fix the assembly positioning tube 3, and the column 23 is used to fix the assembly limit sensor 6 and the laser locator 7.

[0058] Preferably, it also includes a control system 10, which includes a start button 101, an adjustment panel 102 and a power switch 103. The start button 101, the adjustment panel 102 and the power switch 103 are all arranged on the base 1, and the adjustment panel 102 is electrically connected to the laser locator 7, the limit sensor 6 and the driver 5.

[0059] A control system 10 is arranged on the base 1 , and a start button 101 can start the test, control the actions of the driver 5 and the suspension seat 9 , realize the landing of the test ball and adjust the state of the baffle 4 .

[0060] The working process of the utility model is:

[0061] The laser locator 7 irradiates the test center point 12 of the test bench 11, marks the test center point 12 on the test bench 11 with a marker pen, and places the test object on the test bench 11;

[0062] The height of the laser locator 7 is adjusted according to the height of the experimental object and then fixed so that the light of the laser locator 7 is irradiated onto the test bench 11, and the experimental object is placed at the irradiation position of the laser light, and the position of the experimental object is fixed;

[0063] According to the height of the test object and the diameter of the test ball, adjust the height of the limit sensor 6 so that the limit sensor 6 is located between the baffle 4 and the test object, and then fix the position of the limit sensor 6;

[0064] According to the height of the test object and the diameter of the test ball, adjust the height of the positioning tube 3 so that there is a distance between the bottom end of the positioning tube 3 and the test object, and then fix the position of the positioning tube 3;

[0065] The test ball is fixedly suspended at the upper position of the center of the positioning tube 3 by a hanging rope, and the height of the hanging rope is adjusted to the test height by the rope drum 91 so that the height of the test ball meets the test requirements, and the hanging rope is clamped by the fixed hook 92 to ensure that the height of the test ball relative to the test object remains unchanged, and the test ball information, test ball height, test object information and other data are recorded;

[0066] Initialize the entire test device, make sure that the fixed hook 92 is closed, the baffle 4 is in the open state, the rope drum 91 is in the relaxed state, and the limit sensor 6 is in the working state, press the start button 101 to test, and when the steel ball passes through the lower end of the positioning tube 3, the limit sensor 6 transmits a signal to the control system 10, the control system 10 controls the driver 5 to operate, and the baffle 4 rotates to the closed state. After the test ball impact is completed, observe the impact of the sample and record the test results.

[0067] In summary, the embodiment of the utility model provides an impact test device, in which the central axis of the center hole of the positioning tube on the support frame passes through the test center point of the test bench, and the test ball can drop to the test center point after free falling from the positioning tube. When conducting the impact test, the light emitted by the laser locator passes through the test center point, which can clearly point out the test position of the test object, so that the test object, the test center point, and the falling point of the test ball coincide with each other, ensuring that the test ball accurately hits the sample test area; at the same time, a baffle is arranged at one end of the positioning tube, and the driver can control the baffle to open or close the center hole. At the beginning of the test, the baffle is in an open state, and the center hole is open. When the limit sensor senses that the test ball passes through one end of the positioning tube close to the test bench, the limit sensor transmits an electrical signal to the driver, and the driver adjusts the baffle to switch to a closed state to close the center hole. At this time, there is no space for the test ball to bounce back again between the test bench and the baffle, thereby avoiding the test ball from hitting the test object again after rebounding, thereby ensuring the accuracy of the test data.

[0068] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. An impact test device, It is characterized in that include: A base (1), the base (1) having a test bench (11) for arranging a test object, the test bench (11) having a test center point (12); A support frame (2), the support frame (2) being mounted on the base (1); A positioning tube (3), the positioning tube (3) being fixedly mounted on the support frame (2), the positioning tube (3) having a center hole (31), and the center axis of the center hole (31) passing through the test center point (12); a baffle (4), the baffle (4) being arranged at one end of the positioning tube (3) close to the base (1), the baffle (4) having an open state in which the central hole (31) is opened to allow the test ball to pass through, and a closed state in which the central hole (31) is at least partially closed to block the test ball; A driver (5), the driver (5) being in driving connection with the baffle (4), the driver (5) being used to drive the baffle (4) to open or close the central hole (31); A limit sensor (6), the limit sensor (6) being mounted on the support frame (2), the limit sensor (6) being used to sense the test ball passing through the positioning tube (3) and approaching one end of the test bench (11), the limit sensor (6) being electrically connected to the driver (5); A laser locator (7), wherein the laser locator (7) is mounted on the support frame (2), the laser locator (7) faces the test bench (11), and the light emitted by the laser locator (7) passes through the test center point (12).

2. The impact test device according to claim 1, It is characterized in that The baffle (4) is movably mounted on one end of the positioning tube (3) along a direction perpendicular to the central axis of the positioning tube (3); the baffle (4) has a through hole (41) for a test ball to pass through.

3. The impact test device according to claim 2, It is characterized in that The driver (5) is fixedly mounted on the positioning tube (3), and is non-rotatably connected to one end of the baffle (4) away from the through hole (41). The driver (5) is used to drive the baffle (4) to rotate, and the rotation center line of the baffle (4) is parallel to the central axis of the center hole (31) and is arranged at an interval.

4. The impact test device according to any one of claims 1 to 3, It is characterized in that The support frame (2) has a first adjustment hole (21), the first adjustment hole (21) extends along the central axis direction of the positioning tube (3), the limit sensor (6) is assembled in the first adjustment hole (21), and the height of the limit sensor (6) is located between the baffle (4) and the test bench (11).

5. The impact test device according to any one of claims 1 to 3, It is characterized in that The support frame (2) has a second adjustment hole (22), the second adjustment hole (22) extends along the central axis direction of the positioning tube (3), and the laser locator (7) is assembled in the second adjustment hole (22).

6. The impact test device according to any one of claims 1 to 3, It is characterized in that It also comprises a ruler (8), which is fixedly mounted on the outer wall surface of the positioning tube (3), and the ruler (8) extends along the central axis direction of the positioning tube (3).

7. The impact test device according to any one of claims 1 to 3, It is characterized in that It also comprises a hanging seat (9) for hanging a test ball, the hanging seat (9) being mounted on the support frame (2), and the hanging seat (9) being located at one end of the positioning tube (3) away from the test bench (11).

8. The impact test device according to claim 7, It is characterized in that The suspension seat (9) comprises a rope drum (91) and a fixing hook (92) fixedly assembled with the rope drum (91); the fixing hook (92) is assembled on the support frame (2); and the rope drum (91) is used for winding a suspension rope.

9. The impact test device according to any one of claims 1 to 3, It is characterized in that The support frame (2) comprises a column (23), a cross bar (24) and a support rod (25). There are a plurality of columns (23). One end of each column (23) is fixedly mounted on the base (1), and the other end is connected through the cross bar (24). The support rod (25) is arranged parallel to and spaced from the cross bar (24). The support rod (25) is located between the cross bar (24) and the base (1). The support rod (25) is fixedly connected to the column (23). The positioning tube (3) is fixedly mounted on the support rod (25). The limit sensor (6) and the laser positioner (7) are both mounted on the column (23).

10. The impact test device according to any one of claims 1 to 3, It is characterized in that The invention also comprises a control system (10), wherein the control system (10) comprises a start button (101), an adjustment panel (102) and a power switch (103), wherein the start button (101), the adjustment panel (102) and the power switch (103) are all arranged on the base (1), and the adjustment panel (102) is electrically connected to the laser locator (7), the limit sensor (6) and the driver (5).

Images