A drop ball test machine for PV3966 standard

Abstract

The present application relates to a ball drop tester for PV3966 standard, which includes a support seat, a circular feeding trough is provided on the top of the support seat, a feeding barrel arranged vertically in an axial direction is provided on the top of the support seat, the top and bottom of the feeding barrel are both open, the inner diameter of the feeding barrel is the same as the inner diameter of the feeding trough, a scale line is provided on the outer wall of the feeding barrel, and the feeding barrel is made of a transparent material, steel balls are placed in the feeding barrel and the feeding trough, a vertically arranged bracket is fixed on the top of the support seat, a vertically arranged electric push rod is fixed on the top of the bracket, the electric push rod is located directly above the feeding trough and can extend vertically into the feeding barrel, an electromagnet is fixed on the bottom of the electric push rod, and the electromagnet can absorb the steel ball when powered on; a receiving groove for placing the test piece is provided in the support seat, the receiving groove is connected with the feeding trough and is located directly below the feeding trough. The present application has the effect of making the test results more accurate.

Description

Technical Field

[0001] The present application relates to the field of automobile component testing, and in particular to a drop ball tester for PV3966 standard. Background Art

[0002] There are strict regulations and requirements for the testing of automotive structural parts made of organic materials, such as plates, thin foils, shield plates, etc. At present, domestic accessories are tested according to Volkswagen standards PV3905 and PV3966.

[0003] There are strict regulations and requirements for the inspection of structural parts made of automotive organic materials, such as plates, thin foils, and shield plates. The factory inspection and product development of automotive organic material manufacturers require continuous testing of products to verify the impact resistance of plastic products. The drop ball tester is a test machine used to verify the impact resistance of plastic products.

[0004] A related art ball drop test machine for PV3966 standard, see Figure 1 , including a base 1, a groove 11 is provided on the top of the base 1, the groove 11 is used to place the test piece to be tested, a step groove 12 is provided on the top of the base 1, the step groove 12 is located at the top of the groove 11, the distance from the groove 11 to the step groove 12 is the thickness of the test piece, the step groove 12 is not plugged with a guide cylinder 13, the side wall of the guide cylinder 13 is stacked with a plurality of plug-in ports 14, the plug-in ports 14 are arranged along the axial direction of the guide cylinder 13, and a baffle 15 is plugged in the symmetrical plug-in port 14, the baffle 15 is horizontally arranged and can be pulled out from the plug-in port 14, and the baffle 15 is used to support a steel ball 16.

[0005] During the test, the test piece is first placed in the groove 11, and then the guide cylinder 13 is placed in the step groove 12, so that the bottom of the guide cylinder 13 abuts against the test piece. According to the impact energy required for the test and the mass of the steel ball 16, the height of the steel ball 16 falling can be obtained, and the baffle 15 is placed in the plug-in port 14 of the corresponding height, and then the steel ball 16 is first placed in the steel plate. During the test, the steel plate is pulled away from one side of the guide cylinder 13, and the steel ball 16 falls into the guide cylinder 13 under the action of gravity, and the guide cylinder 13 causes an impact on the test piece. Finally, the test material and the steel ball 16 are taken out, and the sample state is visually observed; however, in the laboratory, when the steel ball 16 is placed on the baffle 15, the steel ball 16 causes an impact on the steel plate, that is, it can have an impact on the guide cylinder 13, and the guide cylinder 13 will also cause an impact on the test piece, affecting the accuracy of the final test result. Summary of the invention

[0006] In order to make the test results more accurate, the present application provides a drop ball test machine for PV3966 standard.

[0007] The present application provides a drop ball test machine for PV3966 standard using the following technical solution:

[0008] A ball drop tester for PV3966 standard, comprising a support seat, a circular blanking trough is provided on the top of the support seat, an axially vertically arranged blanking barrel is provided on the top of the support seat, the top and bottom of the blanking barrel are both open, the inner diameter of the blanking barrel is the same as the inner diameter of the blanking trough, the outer wall of the blanking barrel is provided with scale lines, and the blanking barrel is made of transparent material, steel balls are placed in the blanking barrel and the blanking trough, a vertically arranged bracket is fixed on the top of the support seat, a vertically arranged electric push rod is fixed on the top of the bracket, the electric push rod is located directly above the blanking trough and can extend vertically into the blanking barrel, an electromagnet is fixed on the bottom of the electric push rod, and the electromagnet can absorb the steel ball when powered on; a receiving groove for placing a test piece is provided in the support seat, the receiving groove is connected with the blanking trough and is located directly below the blanking trough.

[0009] By adopting the above technical scheme, the height of the steel ball falling can be obtained according to the impact energy required for the test and the mass of the steel ball, and the electric push rod is controlled to move downward. When the electromagnet is 1 mm away from the steel ball, the electromagnet is energized, and the electromagnet adsorbs the steel ball to the bottom of the electromagnet. The electric push rod drives the electromagnet and the steel ball to slide upward to an appropriate height in the discharge barrel, and the test piece is placed in the receiving groove so that the test piece is directly below the steel ball. Finally, the electromagnet is automatically powered off, releasing the steel ball to hit the test piece, and a test is completed. Compared with traditional testing methods, the test results are more accurate.

[0010] Optionally, a horizontally arranged connecting rod is bolted to the bracket, a positioning ring is fixed to one end of the connecting rod away from the bracket, the unloading barrel passes through the positioning ring, and the positioning ring is threadedly connected with bolts.

[0011] By adopting the above technical solution, the bolts fix the lower barrel and the positioning ring to prevent the lower barrel from shaking and affecting the experimental results.

[0012] Optionally, a slide groove with an open end is provided in the support seat, a loading plate is horizontally slidably connected in the slide groove, the receiving groove is provided in the middle of the loading plate, and a positioning component is provided on the support seat to fix the loading plate and the support seat.

[0013] By adopting the above technical solution, the specimen is placed in the receiving groove of the carrier plate, the carrier plate is slid into the support seat, and then the carrier plate is fixed by the positioning assembly to prevent the carrier plate from shaking during the test. The carrier plate and the support seat slide, which makes it easy to clean the specimen in the receiving groove.

[0014] Optionally, the positioning assembly includes a spring latch arranged in the support seat, the side wall of the loading plate is provided with a plug-in groove for the spring latch to be plugged in, the inner wall of the support seat is provided with a circular groove, the side wall of the support seat is provided with two notch grooves connected to the circular groove, and a limit rod is fixed on the spring latch, which can be plugged into the circular groove from the notch groove.

[0015] By adopting the above technical solution, when fixing the loading plate, the spring latch is rotated until the limit rod is connected to the notch groove, and the spring latch is pushed so that the limit rod of the spring latch slides into the circular groove through the notch groove, and the end of the spring latch is inserted into the insertion groove. The spring latch is then rotated to stagger the limit rod and the notch groove, thereby preventing the spring latch from detaching from the insertion groove of the loading plate, and fixing the loading plate and the support seat more stably.

[0016] Optionally, a locking groove is provided at the bottom of the loading plate away from the open end of the slide slot, a locking plate is fixedly provided at the bottom of the support seat away from the open end of the slide slot, a slope is provided on one side of the locking plate close to the open end, and an auxiliary surface matching the slope is provided at the bottom of the locking groove of the loading plate.

[0017] By adopting the above technical solution, when the loading plate slides into the slide groove, the locking plate presses the loading plate and the support seat tightly, the inclined surface can facilitate the loading plate to slide onto the locking plate, and the auxiliary surface and the inclined surface cooperate to make the loading plate and the locking plate fit more tightly.

[0018] Optionally, an arc-shaped groove is provided on the top of the carrier plate, and the groove is connected to the receiving groove.

[0019] By adopting the above technical solution, when the test is completed, the carrier plate is pulled outward, and fingers can be inserted into the groove to facilitate taking out the test piece clamped in the accommodating groove.

[0020] Optionally, the side wall of the carrier plate is provided with a discharge groove connected to the accommodating groove, the bottom of the carrier plate is provided with a clamping groove, the discharge groove is clamped with a discharge plate, and the bottom of both sides of the discharge plate are fixed with limit blocks clamped in the clamping groove.

[0021] By adopting the above technical solution, after the test is completed, if the test piece is broken and difficult to clean, the carrier plate can be slid outward, and the broken slag can be swept out from the discharge chute with a brush, so as to facilitate the cleaning of the waste in the receiving chute.

[0022] Optionally, a limiting cylinder is fixedly provided at the top of the support seat at the position of the blanking trough, the limiting cylinder is axially arranged vertically, the inner diameter of the limiting cylinder is larger than the aperture of the blanking trough, and the blanking cylinder is inserted into the limiting cylinder.

[0023] By adopting the above technical solution, the lower barrel is inserted into the limiting barrel, which can limit the bottom of the lower barrel, so that the lower barrel and the lower barrel are concentrically arranged to prevent the steel ball from colliding with the limiting barrel or the inner wall of the dropping trough during the falling process and affecting the experimental results.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. A vertically arranged bracket is fixed on the top of the support seat, and a vertically arranged electric push rod is fixed on the top of the bracket. The electric push rod is located directly above the blanking trough and can extend vertically into the blanking barrel. An electromagnet is fixed at the bottom of the electric push rod. The electromagnet can absorb the steel ball when powered on. A receiving groove for placing the test piece is provided in the support seat. The receiving groove is connected with the blanking trough and is located directly below the blanking trough. When the electromagnet is powered on, the electromagnet absorbs the steel ball to the bottom of the electromagnet. The electric push rod drives the electromagnet and the steel ball to slide upward to an appropriate height in the blanking barrel. The test piece is placed in the receiving groove so that the test piece is directly below the steel ball. The electromagnet is automatically powered off, and the steel ball is released to hit the test piece. A test is completed. Compared with the traditional test method, the test result is more accurate.

[0026] 2. A locking groove is provided at the bottom of the carrier plate away from the open end of the slide, a locking plate is fixedly provided at the bottom of the support seat located at the slide away from the open end, an inclined surface is provided on the side of the locking plate close to the open end, and an auxiliary surface matching the inclined surface is provided at the bottom of the locking groove of the carrier plate. After the carrier plate slides into the slide, the locking plate presses the carrier plate against the support seat, and the inclined surface facilitates the carrier plate to slide onto the locking plate. The auxiliary surface and the inclined surface cooperate to make the carrier plate and the locking plate fit more tightly.

[0027] 3. A discharge trough connected to the containing groove is opened on the side wall of the carrier plate, a clamping groove is opened at the bottom of the carrier plate at the discharge trough, the discharge trough is clamped with the discharge plate, and limit blocks clamped in the clamping groove are fixed at the bottom of both sides of the discharge plate. When the test is completed, if the specimen is broken and difficult to clean, the carrier plate can be slid outward, and the debris can be swept out of the discharge trough with a brush, so as to facilitate the cleaning of the waste in the containing groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of a falling ball tester in the related art.

[0029] Figure 2 It is a schematic structural diagram of an embodiment.

[0030] Figure 3 is a cross-sectional view of the embodiment.

[0031] Figure 4 yes Figure 3 Enlarged view of part A.

[0032] Figure 5 It is a structural schematic diagram of a support base and a carrier plate.

[0033] Figure 6 It is a cross-sectional view of the support seat and the carrier plate.

[0034] Figure 7 yes Figure 6 Enlarged view of part B.

[0035] Figure 8 This is an exploded view of the carrier plate.

[0036] Explanation of reference numerals: 1, base; 11, groove; 12, step groove; 13, guide cylinder; 14, plug interface; 15, baffle; 16, steel ball; 2, support seat; 21, drop groove; 22, limit cylinder; 23, drop cylinder; 231, scale line; 24, slide groove; 241, locking plate; 242, auxiliary surface; 25, loading plate; 251, receiving groove; 252, pick groove; 253, discharge slot; 2531, clamping slot; 254, discharge plate; 255, limit block; 256, handle; 257, locking slot; 2571, inclined plane; 258, plug-in slot; 26, positioning slot; 261, round slot; 262, notched slot; 27, spring latch; 271, limit rod; 3, bracket; 31, connecting plate; 32, electric push rod; 33, electromagnet; 34, connecting rod; 341, positioning ring. DETAILED DESCRIPTION

[0037] The following is combined with Figure 1-8 This application is described in further detail.

[0038] The present application embodiment discloses a drop ball test machine for PV3966 standard. Figure 2 and Figure 3 A ball drop tester for PV3966 standard includes a support seat 2, a feeding trough 21 is provided on the top of the support seat 2, and the feeding trough 21 is a circular trough. A limiting cylinder 22 is fixedly provided at the top of the support seat 2 at the position of the feeding trough 21. The limiting cylinder 22 is vertically arranged in the axial direction, and the inner diameter of the limiting cylinder 22 is larger than the aperture of the feeding trough 21; a feeding cylinder 23 is inserted into the limiting cylinder 22, and the top and bottom of the feeding cylinder 23 are both open. The outer diameter of the feeding cylinder 23 is the same as the inner diameter of the limiting cylinder 22, and the inner diameter of the feeding cylinder 23 is the same as the inner diameter of the feeding trough 21. A scale line 231 is provided on the outer wall of the feeding cylinder 23, and the feeding cylinder 23 is a transparent feeding cylinder 23; a steel ball 16 is placed in the feeding trough 21, and the inner diameter of the steel ball 16 is smaller than the inner diameter of the feeding cylinder 23. The discharge barrel 23 is transparent, and the position of the steel ball 16 in the discharge barrel 23 can be clearly seen, and the scale line 231 can clearly indicate the height to which the steel ball 16 falls.

[0039] A vertically arranged bracket 3 is fixedly provided on the top of the support seat 2, a horizontally arranged connecting plate 31 is fixedly provided on the top of the bracket 3, an electric push rod 32 is fixedly provided on the bottom of the connecting plate 31, the electric push rod 32 is vertically arranged, and the electric push rod 32 is located directly above the blanking chute 21, so that the electric push rod 32 can extend vertically into the blanking barrel 23, an electromagnet 33 is fixedly provided on the bottom of the electric push rod 32, and the electromagnet 33 is electrically connected to the power supply; the electromagnet 33 can absorb the steel ball 16 when energized, and the electric push rod 32 can drive the electromagnet 33 and the steel ball 16 to slide to an appropriate height.

[0040] A connecting rod 34 is fixedly provided on the bracket 3 by bolts. The connecting rod 34 is arranged horizontally. A positioning ring 341 is fixedly provided at one end of the connecting rod 34 away from the bracket 3. The inner diameter of the positioning ring 341 is slightly larger than the outer diameter of the discharge barrel 23. The positioning ring 341 is threadedly connected with bolts. The bolts fix the discharge barrel 23 and the positioning ring 341 to prevent the discharge barrel 23 from shaking and affecting the experimental results.

[0041] See also Figure 3 and Figure 4 A slide groove 24 is provided in the support seat 2, and a loading plate 25 is horizontally slidably connected in the slide groove 24. One end of the slide groove 24 is open, and the loading plate 25 can slide out of the support seat 2 from the open end. A receiving groove 251 is provided in the middle of the loading plate 25. The receiving groove 251 is circular, and the inner diameter of the receiving groove 251 is slightly larger than the inner diameter of the blanking groove 21. The loading plate 25 completely slides into the slide groove 24, and the receiving groove 251 is connected with the blanking groove 21 and is located directly below the blanking groove 21.

[0042] During the test, the height of the steel ball 16 falling can be obtained according to the impact energy required for the test and the mass of the steel ball 16, and the electric push rod 32 is controlled to move downward. When the distance between the electromagnet 33 and the steel ball 16 is 1 mm, the electromagnet 33 is energized, and the electromagnet 33 adsorbs the steel ball 16 to the bottom of the electromagnet 33. The electric push rod 32 drives the electromagnet 33 and the steel ball 16 to slide upward to an appropriate height located in the discharge barrel 23; the loading plate 25 is pulled outward, and the test piece is placed in the receiving groove 251, and then the loading plate 25 is slid into the slide groove 24 so that the test piece is located directly below the steel ball 16; finally, the electromagnet 33 is automatically powered off, and the steel ball 16 is released to hit the test piece, completing a test.

[0043] See also Figure 4 and Figure 5A handle 256 is fixedly provided on one side of the loading plate 25, and a locking groove 257 is provided at the bottom of the other side. A locking plate 241 is fixedly provided at the bottom of the support seat 2 located at the slide groove 24 away from the open end, and a slope 2571 is provided on the side of the locking plate 241 close to the open end. An auxiliary surface 242 cooperating with the slope 2571 is provided at the bottom of the loading plate 25 located at the locking groove 257; when the loading plate 25 slides into the slide groove 24, the locking plate 241 presses the loading plate 25 against the support seat 2, and the slope 2571 can facilitate the loading plate 25 to slide onto the locking plate 241, and the auxiliary surface 242 cooperates with the slope 2571 to make the loading plate 25 and the locking plate 241 cooperate more tightly.

[0044] See also Figure 6 and Figure 7 A positioning groove 26 is provided in the support seat 2, a spring latch 27 is provided in the positioning groove 26, a plug-in groove 258 for the spring latch 27 to be plugged in is provided on the side wall of the loading plate 25, a circular groove 261 is provided on the inner wall of the support seat 2, the circular groove 261 is communicated with the positioning groove 26, two notch grooves 262 are provided on the side wall of the support seat 2, the notch groove 262 is communicated with the circular groove 261, a limiting rod 271 is fixed on the spring latch 27, and the limiting rod 271 can be plugged into the circular groove 261 from the notch groove 262; When fixing the loading plate 25, rotate the spring latch 27 until the limit rod 271 is connected to the notch groove 262, push the spring latch 27, and make the limit rod 271 of the spring latch 27 slide into the circular groove 261 through the notch groove 262, and the end of the spring latch 27 is inserted into the insertion groove 258, and then rotate the spring latch 27 to stagger the limit rod 271 and the notch groove 262 to prevent the spring latch 27 from escaping from the insertion groove 258 of the loading plate 25, so as to fix the loading plate 25 and the support seat 2 more stably.

[0045] See also Figure 8 The top of the carrier plate 25 is provided with an arc-shaped groove 252, which is connected to the receiving groove 251. When the test is completed, the carrier plate 25 is pulled outward, and fingers can be inserted into the groove 252, so as to facilitate the removal of the test piece clamped in the receiving groove 251. The side wall of the carrier plate 25 is provided with a discharge groove 253, and the depth of the discharge groove 253 is the same as the depth of the receiving groove 251. The carrier plate 25 is provided with a clamping groove 2531 at the bottom of the discharge groove 253, and a discharge plate 254 is clamped in the discharge groove 253. The bottom of the two sides of the discharge plate 254 are fixed with limit blocks 255 clamped in the clamping groove 2531. When the test is completed, if the test piece is broken and difficult to clean, the carrier plate 25 can be slid outward, and the broken slag can be swept out from the position of the discharge groove 253 with a brush, so as to facilitate the cleaning of the waste in the receiving groove 251.

[0046] The implementation principle of the drop ball tester for PV3966 standard in the embodiment of the present application is as follows: control the electric push rod 32 to move downward, and when the distance between the electromagnet 33 and the steel ball 16 is 1 mm, energize the electromagnet 33, and the electromagnet 33 adsorbs the steel ball 16 to the bottom of the electromagnet 33. According to the impact energy required for the test and the mass of the steel ball 16, the height of the steel ball 16 falling can be obtained, and the electric push rod 32 drives the electromagnet 33 and the steel ball 16 to slide upward to a proper height at the discharge barrel 23; pull out the loading plate 25, place the specimen in the receiving groove 251, and then slide the loading plate 25 into the slide groove 24, so that the specimen is located directly below the steel ball 16; finally, the electromagnet 33 is automatically powered off, and the steel ball 16 is released to hit the specimen, completing a test.

[0047] After the test is completed, the spring latch 27 is rotated to disengage the limit rod 271 from the notch groove 262 and the circular groove 261, so that the end of the spring latch 27 can be disengaged from the plug-in groove 258; the loading plate 25 is slid outward. If the test piece is not broken, the finger can be inserted into the bottom of the groove 252 to take out the test piece. If the test piece is broken, the discharge plate 254 can be slid out, and the broken residue can be swept out through the discharge trough 253 by a brush or the like.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A ball drop tester for PV3966 standard, comprising a support seat (2), a circular material drop groove (21) is provided on the top of the support seat (2), a material drop barrel (23) is provided on the top of the support seat (2), the top and bottom of the material drop barrel (23) are both open, the inner diameter of the material drop barrel (23) is the same as the inner diameter of the material drop groove (21), a scale line (231) is provided on the outer wall of the material drop barrel (23), and the material drop barrel (23) is made of a transparent material, and a steel ball (16) is placed in the material drop barrel (23) and the material drop groove (21), characterized in that: A vertically arranged bracket (3) is fixedly arranged on the top of the support seat (2), a vertically arranged electric push rod (32) is fixedly arranged on the top of the bracket (3), the electric push rod (32) is located directly above the blanking chute (21) and can extend vertically into the blanking barrel (23), an electromagnet (33) is fixedly arranged at the bottom of the electric push rod (32), and the electromagnet (33) can absorb the steel ball (16) when powered; The support seat (2) is provided with a receiving groove (251) for placing the test piece, and the receiving groove (251) is connected with the blanking groove (21) and is located directly below the blanking groove (21); The support seat (2) is provided with a slide groove (24) with an open end, a material carrier plate (25) is horizontally slidably connected in the slide groove (24), a receiving groove (251) is provided in the middle of the material carrier plate (25), and a positioning component is provided on the support seat (2) for fixing the material carrier plate (25) and the support seat (2); The positioning assembly comprises a spring latch (27) arranged in the support seat (2); a side wall of the material loading plate (25) is provided with a plugging groove (258) for the spring latch (27) to be plugged in; a circular groove (261) is provided on the inner wall of the support seat (2); the side wall of the support seat (2) is provided with two notch grooves (262) communicating with the circular groove (261); a limiting rod (271) is fixedly provided on the spring latch (27); and the limiting rod (271) can be plugged into the circular groove (261) from the notch groove (262); The bottom of the material carrier (25) away from the open end of the slide groove (24) is provided with a locking groove (257); the support seat (2) is located at the bottom of the slide groove (24) away from the open end and is fixed with a locking plate (241); a side of the locking plate (241) close to the open end is provided with an inclined surface (2571); and the bottom of the material carrier (25) is provided with an auxiliary surface (242) matched with the inclined surface (2571).

2. A drop ball tester for PV3966 standard according to claim 1, characterized in that: A horizontally arranged connecting rod (34) is bolted to the bracket (3), a positioning ring (341) is fixed to one end of the connecting rod (34) away from the bracket (3), the unloading barrel (23) passes through the positioning ring (341), and a bolt is threadedly connected to the positioning ring (341).

3. A drop ball tester for PV3966 standard according to claim 1, characterized in that: The top of the material carrying plate (25) is provided with an arc-shaped groove (252), and the groove (252) is connected to the containing groove (251).

4. A drop ball tester for PV3966 standard according to claim 1, characterized in that: The side wall of the material carrier (25) is provided with a discharge groove (253) connected to the receiving groove (251); the bottom of the material carrier (25) is provided with a clamping groove (2531); a discharge plate (254) is clamped in the discharge groove (253); and limiting blocks (255) clamped in the clamping groove (2531) are fixedly provided at the bottom of both sides of the discharge plate (254).

5. The falling ball tester for PV3966 standard according to claim 1, characterized in that: A limiting cylinder (22) is fixedly provided at the top of the support seat (2) at the position of the blanking groove (21). The limiting cylinder (22) is arranged vertically in the axial direction. The inner diameter of the limiting cylinder (22) is larger than the hole diameter of the blanking groove (21). The blanking cylinder (23) is inserted into the limiting cylinder (22).

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