An impact testing machine for synthetic material articles

Abstract

The utility model relates to a kind of impact testing machines of synthetic material products, it includes base and steel ball, the upper surface of base is equipped with top plate by two vertical rods, the outer surface of top plate is equipped with cantilever, the lower surface of cantilever is equipped with guide rod, and steel ball is slidably arranged at the outside of guide rod;The upper surface of base is equipped with bearing seat by height adjusting mechanism;The outside of vertical rod is equipped with electromagnet by lifting mechanism, electromagnet is sleeved in the outside of guide rod and is matched with steel ball magnetism suction cooperation.By sliding installation steel ball in the outside of guide rod, using guide rod to play limiting effect to it, and cooperate height adjusting mechanism to adjust the height of bearing seat, the upper surface of the article to be measured is close to the bottom of guide rod, so it can be vertically bounced along the surface of guide rod after steel ball vertically falls on the article to be measured, avoid the situation of causing damage to surrounding equipment and staff.

Description

Technical Field

[0001] This utility model relates to the field of materials testing technology, specifically to an impact testing machine for synthetic material products. Background Technology

[0002] With the widespread application of polymer materials, composite materials, and novel synthetic materials in aerospace, automotive manufacturing, electronics, and new energy fields, the need for evaluating their dynamic mechanical properties, especially their impact resistance, is becoming increasingly prominent. Synthetic material products frequently face impact loads such as collisions, drops, and vibrations during service. Insufficient material toughness or poor energy absorption capacity can lead to structural failure, functional loss, or even safety accidents. Therefore, accurately characterizing the impact performance of synthetic materials has become a crucial step in ensuring product quality, optimizing material formulations, and improving structural safety.

[0003] Chinese patent CN212228555U discloses an impact testing machine. This machine uses a movable connection between a delivery platform and a support frame. By adjusting the height of the delivery platform, the steel ball can acquire different kinetic energies, thus solving the problem that the same material cannot be used for impact testing at different heights. The delivery height and the size of the impact object can be adjusted according to the testing requirements, allowing for flexible impact testing of objects of various heights and sizes. This solves the problem that traditional impact testing equipment can only adjust the size of the impact object used for testing, but cannot arbitrarily adjust the delivery height, thus affecting the test results.

[0004] When the aforementioned patent is used, the steel ball bounces after it falls vertically onto the object to be tested, which may cause damage to the operator or equipment. Furthermore, after the steel ball rolls to other places, the staff needs to pick it up, place it in the circular through hole, and fix it, which increases the complexity of the operation and reduces the efficiency of the test. Utility Model Content

[0005] The purpose of this invention is to provide an impact testing machine for synthetic material products that is safe and efficient.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows.

[0007] An impact testing machine for synthetic material products includes a base and a steel ball. A top plate is mounted on the upper surface of the base via two uprights. A cantilever is mounted on the outer surface of the top plate, and a guide rod is mounted on the lower surface of the cantilever. The steel ball is slidably positioned on the outside of the guide rod. A bearing seat is mounted on the upper surface of the base via a height adjustment mechanism. An electromagnet is mounted on the outside of the uprights via a lifting mechanism. The electromagnet is sleeved on the outside of the guide rod and magnetically attracted to the steel ball.

[0008] Therefore, by sliding the steel ball on the outside of the guide rod, using the guide rod to limit its movement, and cooperating with the height adjustment mechanism to adjust the height of the bearing seat, the upper surface of the object to be tested is brought close to the bottom of the guide rod. This ensures that after the steel ball falls vertically onto the object, it can only bounce vertically along the surface of the guide rod, thus avoiding injury to surrounding equipment and personnel.

[0009] Furthermore, the height adjustment mechanism includes an internally threaded sleeve rotatably mounted on the upper surface of the base, and a first threaded rod installed at the center of the lower surface of the support, the first threaded rod being inserted and threaded into the interior of the internally threaded sleeve. This allows the support to be raised and lowered, ensuring that the upper surface of the object to be measured is close to the bottom of the guide rod.

[0010] Furthermore, the lifting mechanism includes a servo motor mounted on the upper surface of the top plate. The output shaft of the servo motor is connected to a second threaded rod, and the end of the second threaded rod is rotatably connected to the upper surface of the base. A lifting plate is slidably mounted on the outer surfaces of the two uprights, and the second threaded rod passes through the interior of the lifting plate and is threadedly connected to it. A connecting plate is mounted on the outer surface of the lifting plate, and the end of the connecting plate is connected to an electromagnet. By activating the servo motor, the electromagnet can be raised and lowered via the connecting plate.

[0011] Furthermore, fixing sleeves are installed at the four corners of the upper surface of the base. Sliding rods are slidably installed inside the fixing sleeves, with the ends of the sliding rods connected to the lower surface of the support seat. This serves to limit the movement of the support seat, ensuring its vertical lifting and lowering.

[0012] Furthermore, multiple extension arms are coaxially and at equal angles mounted on the outer surface of the internally threaded sleeve, with bolts installed at the ends of the extension arms. This locks the internally threaded sleeve in place, preventing the bearing seat from sliding downwards under impact.

[0013] Furthermore, the inner wall of the steel ball is equipped with ball bearings, which roll in contact with the outer surface of the guide rod. This avoids the impact of frictional resistance on test accuracy.

[0014] Furthermore, mounting holes (1061) are evenly distributed on the surface of the support. According to the testing requirements, the fixture can be installed on the appropriate position of the support through the mounting holes (1061) to fix the object to be tested.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows.

[0016] 1. This utility model slides a steel ball on the outside of a guide rod, using the guide rod to limit its movement. In conjunction with a height adjustment mechanism, the height of the support seat is adjusted so that the upper surface of the object to be tested is close to the bottom of the guide rod. This ensures that after the steel ball falls vertically onto the object, it will only bounce vertically along the surface of the guide rod, thus avoiding injury to surrounding equipment and personnel.

[0017] 2. This utility model limits the steel ball by using a guide rod to prevent it from rolling to other places, and works in conjunction with a lifting mechanism to drive an electromagnet to lift and lower vertically to magnetically fix the steel ball. This allows the steel ball to be quickly raised to a specified height. Compared with the prior art of manually placing the steel ball and manually adjusting the height, this method can significantly improve testing efficiency and reduce labor intensity in repeated testing. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a front view structural diagram of the present utility model; Figure 3 This is a schematic diagram of the base structure in this utility model; Figure 4 This is a schematic diagram of the cross-sectional structure of the steel ball in this utility model.

[0019] In the diagram: 1. Base; 101. Upright pole; 102. Top plate; 103. Cantilever; 104. Guide rod; 105. Steel ball; 106. Bearing seat; 1061. Mounting hole; 107. Electromagnet; 2. Height adjustment mechanism; 201. Internal threaded sleeve; 202. First threaded rod; 3. Lifting mechanism; 301. Servo motor; 302. Second threaded rod; 303. Lifting plate; 304. Connecting plate; 4. Fixed sleeve; 401. Slide rod; 5. Extension arm; 501. Bolt; 6. Ball bearing. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figure 1-4As shown, an impact testing machine for synthetic material products includes a base 1 and a steel ball 105. A top plate 102 is mounted on the upper surface of the base 1 via two uprights 101. A cantilever 103 is mounted on the outer surface of the top plate 102, and a guide rod 104 is mounted on the lower surface of the cantilever 103. The steel ball 105 is slidably disposed on the outside of the guide rod 104. A bearing seat 106 is mounted on the upper surface of the base 1 via a height adjustment mechanism 2. An electromagnet 107 is mounted on the outside of the uprights 101 via a lifting mechanism 3. The electromagnet 107 is sleeved on the outside of the guide rod 104 and magnetically attracted to the steel ball 105.

[0022] The test object is placed on the support seat 106, and then the lifting mechanism 3 drives the steel ball 105 to rise to the specified height. The electromagnet 107 is de-energized to release the magnetic attraction on the steel ball 105, so that the steel ball 105 can fall vertically along the outer surface of the guide rod 104 and hit the surface of the test object, thereby achieving the purpose of the impact test.

[0023] Since the guide rod 104 limits the steel ball 105, and in conjunction with the height adjustment mechanism 2 to adjust the height of the support seat 106, the upper surface of the object to be tested is brought close to the bottom of the guide rod 104. Thus, after the steel ball 105 falls vertically onto the object to be tested, it can only bounce vertically along the surface of the guide rod 104, avoiding injury to surrounding equipment and personnel.

[0024] After the steel ball 105 falls, the lifting mechanism 3 drives the electromagnet 107 to lift vertically and fix the steel ball 105 magnetically, thereby quickly raising the steel ball 105 to the specified height. Compared with the existing technology of manually placing the steel ball 105 and manually adjusting the height, it can significantly improve the testing efficiency and reduce the labor intensity in the repeated testing process.

[0025] Preferably, the height adjustment mechanism 2 includes an internally threaded sleeve 201 rotatably mounted on the upper surface of the base 1, and a first threaded rod 202 is installed at the middle position of the lower surface of the bearing seat 106, and the first threaded rod 202 is inserted and threadedly connected to the inside of the internally threaded sleeve 201.

[0026] When the internal threaded sleeve 201 is rotated, if the first threaded rod 202 is limited by the bearing seat 106 and does not rotate with it, the bearing seat 106 can be raised and lowered by the first threaded rod 202 under the action of the threaded connection, so as to ensure that the upper surface of the object to be measured can be close to the bottom of the guide rod 104.

[0027] Preferably, the lifting mechanism 3 includes a servo motor 301 mounted on the upper surface of the top plate 102. The output shaft of the servo motor 301 is connected to a second threaded rod 302, and the end of the second threaded rod 302 is rotatably connected to the upper surface of the base 1. A lifting plate 303 is slidably mounted on the outer surfaces of the two uprights 101, and the second threaded rod 302 passes through the interior of the lifting plate 303 and is threadedly connected to it. A connecting plate 304 is mounted on the outer surface of the lifting plate 303, and the end of the connecting plate 304 is connected to the electromagnet 107.

[0028] When the servo motor 301 is started, it drives the second threaded rod 302 to rotate. Due to the limiting effect of the upright rod 101, and under the action of the threaded connection, the lifting plate 303 can be driven to rise and fall vertically, and the electromagnet 107 can be driven to rise and fall through the connecting plate 304.

[0029] Both the servo motor 301 and the electromagnet 107 are controlled by the controller. When the electromagnet 107 releases the steel ball 105, the servo motor 301 can drive the electromagnet 107 to descend quickly to a suitable height and energize the electromagnet 107. When the steel ball 105 bounces upward after landing on the surface of the object to be tested, it can be magnetically attracted by the electromagnet 107, thus avoiding the situation where the steel ball 105 causes multiple impacts on the object to be tested due to bouncing, which would affect the test accuracy. This is suitable for scenarios with high test accuracy requirements.

[0030] Preferably, a fixing sleeve 4 is installed at each of the four corners of the upper surface of the base 1, and a slide rod 401 is slidably installed inside the fixing sleeve 4. The end of the slide rod 401 is connected to the lower surface of the bearing seat 106.

[0031] By setting the fixed sleeve 4 and the slide bar 401, the bearing seat 106 can be limited to prevent the bearing seat 106 from rotating at an angle and ensure its vertical lifting.

[0032] Preferably, multiple extension arms 5 are mounted coaxially and at equal angles on the outer surface of the internal threaded sleeve 201, and bolts 501 are mounted at the ends of the extension arms 5.

[0033] The extension arm 5 facilitates the rotation of the internal threaded sleeve 201 by the operator. After the height of the bearing seat 106 is adjusted, the bolt 501 is tightened on the surface of the base 1, thereby locking the internal threaded sleeve 201 and preventing the bearing seat 106 from sliding down under impact.

[0034] In actual operation, it is not necessary to tighten every bolt 501. Only the bolt 501 closest to the operator needs to be tightened to achieve locking, which is convenient.

[0035] Preferably, the inner wall of the steel ball 105 is provided with a ball bearing 6, which makes rolling contact with the outer surface of the guide rod 104.

[0036] By setting the ball 6, the contact friction between the steel ball 105 and the guide rod 104 can be converted into rolling friction, thereby avoiding the influence of frictional resistance on the test accuracy.

[0037] Preferably, mounting holes 1061 are evenly distributed on the surface of the support 106.

[0038] According to the testing requirements, the fixture can be installed on the appropriate position of the carrier 106 through the mounting hole 1061 to fix the object to be tested.

[0039] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0040] The above is a detailed description of the present invention in conjunction with specific embodiments, and it should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, any equivalent substitutions or obvious modifications made without departing from the concept of the present invention, and which have the same performance or use, should be considered as falling within the patent protection scope defined by the submitted claims.

Claims

1. An impact testing machine for synthetic material products, comprising a base (1) and a steel ball (105), characterized in that: The upper surface of the base (1) is fitted with a top plate (102) by two uprights (101), the outer surface of the top plate (102) is fitted with a cantilever (103), the lower surface of the cantilever (103) is fitted with a guide rod (104), and the steel ball (105) is slidably disposed on the outside of the guide rod (104). The upper surface of the base (1) is fitted with a support seat (106) via a height adjustment mechanism (2). An electromagnet (107) is installed on the outside of the upright (101) via a lifting mechanism (3). The electromagnet (107) is sleeved on the outside of the guide rod (104) and magnetically attracted to the steel ball (105).

2. The impact testing machine for synthetic material products according to claim 1, characterized in that: The height adjustment mechanism (2) includes an internally threaded sleeve (201) rotatably mounted on the upper surface of the base (1), and a first threaded rod (202) is installed at the middle position of the lower surface of the bearing seat (106), and the first threaded rod (202) is inserted into and threadedly connected to the inside of the internally threaded sleeve (201).

3. The impact testing machine for synthetic material products according to claim 1, characterized in that: The lifting mechanism (3) includes a servo motor (301) mounted on the upper surface of the top plate (102). The output shaft of the servo motor (301) is connected to a second threaded rod (302), and the end of the second threaded rod (302) is rotatably connected to the upper surface of the base (1). The outer surfaces of the two uprights (101) are slidably mounted with a lifting plate (303), and the second threaded rod (302) passes through the interior of the lifting plate (303) and is threadedly connected to it; A connecting plate (304) is installed on the outer surface of the lifting plate (303), and the end of the connecting plate (304) is connected to the electromagnet (107).

4. The impact testing machine for synthetic material products according to claim 2, characterized in that: Fixed sleeves (4) are installed at the four corners of the upper surface of the base (1). A slide rod (401) is slidably installed inside the fixed sleeve (4). The end of the slide rod (401) is connected to the lower surface of the bearing seat (106).

5. The impact testing machine for synthetic material products according to claim 2, characterized in that: Multiple extension arms (5) are mounted coaxially and at equal angles on the outer surface of the internal threaded sleeve (201), and bolts (501) are mounted at the ends of the extension arms (5).

6. The impact testing machine for synthetic material products according to claim 1, characterized in that: The inner wall of the steel ball (105) is provided with a ball bearing (6), which makes rolling contact with the outer surface of the guide rod (104).

7. The impact testing machine for synthetic material products according to claim 1, characterized in that: The surface of the support (106) is evenly distributed with mounting holes (1061).

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