Plastic low-temperature embrittlement instrument

Abstract

The utility model discloses a plastic low-temperature embrittlement instrument, and relates to the technical field of low-temperature embrittlement instruments. The device comprises a machine body, a test bed is fixedly connected to one side of the machine body, a cold well groove is formed in the top end of the test bed, and vertical plates are fixedly connected to the top end of the test bed and located on the two sides of the cold well groove; a stepping motor drives a threaded rod to rotate, meanwhile, an L-shaped rod and a moving rod are driven to transversely move along one side of a panel, and the L-shaped rod is driven to vertically slide along the outer side of a sliding rod through cooperation between an inclined groove and a limiting column, so that when the moving rod moves towards one side of the cold well groove, the bottom end of the L-shaped rod extends into the cold well groove, and the moving rod is driven to move towards the other side of the cold well groove. When the moving rod moves towards one side far away from the cold well groove, the bottom end of the L-shaped rod is drawn out from the interior of the cold well groove, so that the problems that the sample is impacted above the cold well groove and the sample fractured by impact falls into the cold well groove and is troublesome to take out are solved, and the plastic low-temperature test efficiency is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to low temperature embrittlement appearance technical field, concretely is a kind of plastic low temperature embrittlement appearance. BACKGROUND

[0002] Plastic low temperature embrittlement appearance, also called plastic low temperature brittleness tester or plastic low temperature brittleness testing machine, is a kind of equipment for measuring the temperature (i.e. brittleness temperature) of plastic and other elastic materials when they are damaged after being impacted under low temperature conditions. This equipment plays an important role in scientific research, material quality inspection and production process control

[0003] However, when the traditional plastic low temperature embrittlement appearance impacts the sample, the broken sample will fall into the inside of the cold well groove, and the staff needs to use tools to take out the sample from the inside of the cold well groove, which is very cumbersome, thereby reducing the plastic low temperature test efficiency. To solve the above problems, the inventor proposes a plastic low temperature embrittlement appearance. UTILITY MODEL CONTENT

[0004] In order to solve the problem that the broken sample will fall into the inside of the cold well groove when the plastic low temperature embrittlement appearance impacts the sample, the utility model aims to provide a plastic low temperature embrittlement appearance.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme: a plastic low temperature embrittlement appearance, comprising a machine body, one side of the machine body is fixedly connected with a test bench, the top end of the test bench is provided with a cold well groove, the top end of the test bench and the two sides of the cold well groove are both fixedly connected with vertical plates, two vertical plates are fixedly connected with a panel between one side of the two vertical plates, the panel is provided with a moving assembly, the moving assembly is provided with a clamping assembly, the top end of the test bench is provided with an impact assembly on one side close to the panel, and the bottom ends of the machine body and the test bench are both fixedly connected with two symmetrically distributed supporting legs.

[0006] Preferably, the moving assembly comprises a threaded rod, the threaded rod is rotatably connected between the top ends of the two vertical plates on one side close to the panel, the outer side of the moving assembly is threadedly connected with a moving rod, the moving rod is slidably connected with the panel, one side of the moving rod is fixedly connected with two fixed plates, a sliding rod is fixedly connected between the two fixed plates, an L-shaped rod is slidably clamped on the outer side of the sliding rod, an inclined groove is formed in the panel, a limiting column is fixedly connected on one side of the L-shaped rod, the limiting column is slidably clamped in the inclined groove, a stepping motor is fixedly installed on one side of the top of the vertical plate, and the driving end of the stepping motor is fixedly connected with the threaded rod.

[0007] Preferably, the clamping assembly comprises two clamping plates I fixedly connected at the bottom end of the L-shaped rod, one side of one of the clamping plates I is threadedly connected with a bolt, one end of the bolt extends to the inner side of the clamping plate I and is rotatably connected with a clamping plate II.

[0008] Preferably, the impact assembly comprises a mounting plate fixedly connected at the top end of the test bench near one side of the cold well groove, one side of the mounting plate is rotatably connected with a rotating disc, one side of the rotating disc is rotatably connected with a connecting rod, one end of the connecting rod away from the rotating disc is rotatably connected with an extension rod, one side of the mounting plate near the rotating disc is fixedly connected with a limiting block, one end of the extension rod away from the connecting rod is movably penetrated through the limiting block and is fixedly connected with an impact head, one side of the mounting plate away from the rotating disc is fixedly connected with a variable speed motor, and the driving end of the variable speed motor is fixedly connected with the rotating shaft of the rotating disc.

[0009] Compared with the prior art, the utility model has the advantages that:

[0010] The step motor drives the threaded rod to rotate, simultaneously drives the L-shaped rod and the moving rod to move horizontally along one side of the panel, and drives the L-shaped rod to move vertically along the outer side of the sliding rod through the cooperation between the inclined groove and the limiting column, so that when the moving rod moves to one side of the cold well groove, the bottom end of the L-shaped rod extends into the inside of the cold well groove, and when the moving rod moves to the side away from the cold well groove, the bottom end of the L-shaped rod is drawn out from the inside of the cold well groove, avoiding the problem that the impact broken test sample falls into the inside of the cold well groove and is troublesome to take out, and further improving the plastic low temperature test efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0011] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, and obviously, the drawings in the following description are only some embodiments of the present utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating creative labor.

[0012] Figure 1 It is the overall structure schematic diagram of the present utility model.

[0013] Figure 2 It is the local structure schematic diagram of the present utility model.

[0014] Figure 3 It is the present utility model Figure 2 It is the enlarged view of A in the present utility model.

[0015] Figure 4 It is the back structure schematic diagram of the panel in the present utility model.

[0016] Figure 5 This is a schematic diagram of the impact component in this utility model.

[0017] In the diagram: 1. Body; 2. Test bench; 3. Cold well trough; 4. Vertical plate; 5. Panel; 6. Moving assembly; 61. Threaded rod; 62. Moving rod; 63. Fixed plate; 64. Sliding rod; 65. L-shaped rod; 66. Inclined groove; 67. Limiting post; 68. Stepper motor; 7. Clamping assembly; 71. Clamping plate one; 72. Bolt; 73. Clamping plate two; 8. Impact assembly; 81. Mounting plate; 82. Turntable; 83. Connecting rod; 84. Telescopic rod; 85. Limiting block; 86. Impact head; 87. Variable speed motor; 9. Support foot. Detailed Implementation

[0018] 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.

[0019] Example: Figures 1-5 As shown, this utility model provides a plastic low-temperature embrittlement tester, including a body 1. A test bench 2 is fixedly connected to one side of the body 1. A cold well trough 3 is opened at the top of the test bench 2. Vertical plates 4 are fixedly connected to the top of the test bench 2 and on both sides of the cold well trough 3. A panel 5 is fixedly connected between one side of the two vertical plates 4. A moving component 6 is provided on the panel 5. A clamping component 7 is provided on the moving component 6. An impact component 8 is provided on the top of the test bench 2 near the panel 5.

[0020] The movable component 6 includes a threaded rod 61, which is rotatably connected between the top ends of two vertical plates 4 near the side panel 5. A movable rod 62 is threadedly connected to the outer side of the movable component 6, and the movable rod 62 is slidably connected to the side panel 5. Two fixed plates 63 are fixedly connected to one side of the movable rod 62, and a slide rod 64 is fixedly connected between the two fixed plates 63. An L-shaped rod 65 is slidably engaged with the outer side of the slide rod 64. An oblique groove 66 is provided on the side panel 5, and a limit post 67 is fixedly connected to one side of the L-shaped rod 65. The limit post 67 is slidably engaged in the oblique groove 66. A stepper motor 68 is fixedly installed on one side of the top of the vertical plate 4, and the drive end of the stepper motor 68 is fixedly connected to the threaded rod 61.

[0021] By adopting the technical scheme, the threaded rod 61 is driven by the stepping motor 68 to rotate, the L-shaped rod 65 and the moving rod 62 are driven to move horizontally along one side of the panel 5, the L-shaped rod 65 is driven to slide vertically along the outside of the slide rod 64 by cooperation between the inclined groove 66 and the limiting column 67, so that when the moving rod 62 moves to one side of the cold well groove 3, the bottom end of the L-shaped rod 65 extends into the inside of the cold well groove 3, and when the moving rod 62 moves away from one side of the cold well groove 3, the bottom end of the L-shaped rod 65 is extracted from the inside of the cold well groove 3.

[0022] The clamping assembly 7 includes two clamping plates 71 fixedly connected to the bottom end of the L-shaped rod 65, one side of one of the clamping plates 71 is threadedly connected with a bolt 72, one end of the bolt 72 extends to the inside of the clamping plate 71 and is rotatably connected with a clamping plate 73.

[0023] By adopting the technical scheme, the sample is placed between the clamping plate 71 and the clamping plate 73, and the clamping plate 73 is moved to one side of the clamping plate 71 by rotating the bolt 72, so that the sample is clamped and fixed.

[0024] The impact assembly 8 includes a mounting plate 81 fixedly connected to the top end of the test bench 2 near one side of the cold well groove 3, a rotating disc 82 rotatably connected to one side of the mounting plate 81, a connecting rod 83 rotatably connected to one side of the rotating disc 82, a telescopic rod 84 rotatably connected to the end of the connecting rod 83 away from the rotating disc 82, a limiting block 85 fixedly connected to one side of the mounting plate 81 near the rotating disc 82, the telescopic rod 84 movably penetrating the limiting block 85 at the end away from the connecting rod 83 and fixedly connected with an impact head 86, a variable speed motor 87 fixedly installed on one side of the mounting plate 81 away from the rotating disc 82, and the driving end of the variable speed motor 87 is fixedly connected with the rotating shaft of the rotating disc 82.

[0025] By adopting the technical scheme, the rotating disc 82 is driven by the variable speed motor 87 to rotate, one end of the connecting rod 83 is driven to rotate with the rotating disc 82, the other end of the connecting rod 83 is limited by the telescopic rod 84, the movement of the telescopic rod 84 is guided by the limiting block 85, and the impact head 86 is driven to move horizontally and reciprocally, and the sample is impacted by the impact head 86 for impact test.

[0026] The bottom ends of the machine body 1 and the test bench 2 away from each other are fixedly connected with two symmetrical supporting feet 9.

[0027] By adopting the technical scheme, the supporting feet 9 are provided to support the equipment more stably.

[0028] Working principle: when the low temperature test is carried out to the plastic, the sample is placed between the clamping plate one 71 and the clamping plate two 73, the clamping plate two 73 is moved to one side of the clamping plate one 71 by rotating the bolt 72, the sample is clamped and fixed, then the threaded rod 61 is rotated by the stepping motor 68, the L-shaped rod 65 and the moving rod 62 are moved along the side of the panel 5, the L-shaped rod 65 is moved along the outside of the slide rod 64 by the cooperation between the inclined slot 66 and the limiting column 67, so that the moving rod 62 is moved to one side of the cold well groove 3, and the L-shaped rod 65 is moved downward, the sample is inserted into the inside of the cold well groove 3;

[0029] After the sample is cooled for a period of time, the stepping motor 68 is reversely rotated, the sample is taken out from the inside of the cold well groove 3, the sample is placed above the test bench 2, the rotating disc 82 is rotated by the variable speed motor 87, one end of the connecting rod 83 is rotated with the rotating disc 82, the other end of the connecting rod 83 is limited by the telescopic rod 84, the movement of the telescopic rod 84 is guided by the limiting block 85, the impact head 86 is reciprocated horizontally, the sample is impacted by the impact head 86, and the broken sample falls on the upper side of the test bench 2.

[0030] Obviously, those skilled in the art can make various modifications and variations to the utility model without departing from the spirit and scope of the utility model. Therefore, if the modifications and variations of the utility model belong to the scope of the utility model claims and equivalent technologies, the utility model also intends to include these modifications and variations.

Claims

1. A plastic cryogenic embrittlement apparatus comprising a machine body (1), characterised in that: One side of the machine body (1) is fixedly connected with a test bench (2), the top end of the test bench (2) is provided with a cold well groove (3), the top end of the test bench (2) and the two sides of the cold well groove (3) are fixedly connected with vertical plates (4), the two vertical plates (4) are fixedly connected with a panel (5) between one side, the panel (5) is provided with a moving assembly (6), the moving assembly (6) is provided with a clamping assembly (7), and the top end of the test bench (2) is provided with an impact assembly (8) on the side close to the panel (5).

2. A plastic cryogenic embrittlement apparatus as defined in claim 1, wherein, The moving assembly (6) comprises a threaded rod (61), the threaded rod (61) is rotatably connected between the top end of the two vertical plates (4) on the side close to the panel (5), the outer side of the moving assembly (6) is threadedly connected with a moving rod (62), the moving rod (62) is slidably connected with the panel (5), one side of the moving rod (62) is fixedly connected with two fixed plates (63), the two fixed plates (63) are fixedly connected with a sliding rod (64), an L-shaped rod (65) is slidably connected on the outer side of the sliding rod (64), the panel (5) is provided with an inclined groove (66), one side of the L-shaped rod (65) is fixedly connected with a limiting column (67), and the limiting column (67) is slidably connected in the inclined groove (66).

3. A plastic low temperature embrittlement apparatus as defined in claim 1, wherein, The clamping assembly (7) comprises two clamping plates (71), the clamping plates (71) are fixedly connected at the bottom end of the L-shaped rod (65), one side of one of the clamping plates (71) is threadedly connected with a bolt (72), and one end of the bolt (72) extends to the inner side of the clamping plate (71) and is rotatably connected with a clamping plate (73).

4. A plastic low temperature embrittlement apparatus as defined in claim 1, wherein, The impact assembly (8) comprises a mounting plate (81), the mounting plate (81) is fixedly connected at the top end of the test bench (2) on the side close to the cold well groove (3), one side of the mounting plate (81) is rotatably connected with a rotating disc (82), one side of the rotating disc (82) is rotatably connected with a connecting rod (83), one end of the connecting rod (83) away from the rotating disc (82) is rotatably connected with a telescopic rod (84), one side of the mounting plate (81) close to the rotating disc (82) is fixedly connected with a limiting block (85), one end of the telescopic rod (84) away from the connecting rod (83) is movably penetrated through the limiting block (85) and is fixedly connected with an impact head (86), and one side of the mounting plate (81) away from the rotating disc (82) is fixedly connected with a variable speed motor (87), and the driving end of the variable speed motor (87) is fixedly connected with the rotating shaft of the rotating disc (82).

5. A plastic cryogenic embrittlement apparatus as defined in claim 2, wherein, One side of the top of the vertical plate (4) is fixedly connected with a stepping motor (68), and the driving end of the stepping motor (68) is fixedly connected with the threaded rod (61).

6. A plastic cryogenic embrittlement apparatus as defined in claim 1, wherein, The bottom ends of the machine body (1) and the test bench (2) are fixedly connected with two symmetrically distributed supporting feet (9) on the sides away from each other.

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